1. A thermosiphon system, comprising:

-an evaporator (1), the evaporator (1) comprising an evaporator inlet (11) and an evaporator outlet (12);

a condenser (2), the condenser (2) comprising a condenser inlet (21) and a condenser outlet (22);

the evaporator (1) and the condenser (2) are detachably connected through a pipeline assembly (3), the pipeline assembly (3) comprises a first pipeline (31) connected with an evaporator inlet (11), a second pipeline (32) connected with an evaporator outlet (12), a third pipeline (33) connected with a condenser inlet (21), a fourth pipeline (34) connected with a condenser outlet (22), and a first valve assembly (35) connected with the second pipeline (32) and the third pipeline (33), the first valve assembly (35) can control whether the second pipeline (32) is connected or not, and the first valve assembly (35) can also control whether the third pipeline (33) is connected or not.

2. A thermosiphon system according to claim 1, wherein: the first valve assembly (35) comprises a first stop valve (351) capable of controlling whether the second pipeline (32) is opened or closed and a second stop valve (352) capable of controlling whether the third pipeline (33) is opened or closed, and the first stop valve (351) and the second stop valve (352) are connected through threads in a tight and gapless mode.

3. A thermosiphon system according to claim 2, wherein: the second line (32) is detachably connected to the first shut-off valve (351), and the third line (33) is detachably connected to the second shut-off valve (352).

4. A thermosiphon system according to claim 1, wherein: the line assembly (3) further comprises a first filling valve (353) connected to the second line (32).

5. A thermosiphon system according to claim 3, wherein: the pipeline assembly (3) further comprises a second valve assembly (36) for connecting the first pipeline (31) and the fourth pipeline (34), wherein the second valve assembly (36) can control whether the first pipeline (31) is connected or disconnected, and the second valve assembly (36) can also control whether the fourth pipeline (34) is connected or disconnected.

6. The thermosiphon system of claim 5, wherein: the second valve assembly (36) comprises a third stop valve (361) capable of controlling the on-off of the first pipeline (31) and a fourth stop valve (362) capable of controlling the on-off of the fourth pipeline (34), and the third stop valve (361) and the fourth stop valve (362) are connected in a threaded and close and gapless mode.

7. The thermosiphon system of claim 6, wherein: the first line (31) is detachably connected to the third stop valve (361), and the fourth line (34) is detachably connected to the fourth stop valve (362).

8. A thermosiphon system according to claim 1, wherein: the line assembly (3) further comprises a second filling valve (363) connected to the fourth line (34).

9. The thermosiphon system of claim 7, wherein: the second line (32) is screwed to the first shut-off valve (351), and the third line (33) is screwed to the second shut-off valve (352); the first line (31) is in threaded connection with the third shut-off valve (361), the fourth line (34) is in threaded connection with the fourth shut-off valve (362); the third pipeline (33) is in threaded connection with the condenser inlet (21), and the fourth pipeline (34) is in threaded connection with the condenser outlet (22).

10. A thermosiphon system according to claim 1, wherein: the evaporator (1) is a micro-channel evaporator, the condenser (2) is a plate heat exchanger, and the condenser (2) further comprises a cooling liquid inlet (23) and a cooling liquid outlet (24).

Background

Existing thermosiphon systems typically include an evaporator and a condenser, wherein the evaporator and the condenser are welded together by piping to form a single unit. However, in the event of a failure of the evaporator or condenser, the connection must be destructively repaired. In addition, the thermosiphon system needs to be filled with the refrigerant from the beginning after maintenance, so that the maintenance cost is high.

Disclosure of Invention

It is an object of the present invention to provide a thermosiphon system that is easy to maintain.

In order to achieve the purpose, the invention adopts the following technical scheme: a thermosiphon system, comprising:

an evaporator comprising an evaporator inlet and an evaporator outlet;

a condenser comprising a condenser inlet and a condenser outlet;

the evaporator and the condenser are detachably connected through a pipeline assembly, the pipeline assembly comprises a first pipeline connected with an evaporator inlet, a second pipeline connected with an evaporator outlet, a third pipeline connected with a condenser inlet, a fourth pipeline connected with a condenser outlet and a first valve assembly connected with the second pipeline and the third pipeline, the first valve assembly can control whether the second pipeline is connected or disconnected, and the first valve assembly can also control whether the third pipeline is connected or disconnected.

As a further improved technical solution of the present invention, the first valve assembly includes a first stop valve capable of controlling whether the second pipeline is opened or closed and a second stop valve capable of controlling whether the third pipeline is opened or closed, and the first stop valve and the second stop valve are tightly connected by a screw thread without a space.

As a further improved aspect of the present invention, the second line is detachably connected to the first stop valve, and the third line is detachably connected to the second stop valve.

As a further improvement of the present invention, the line assembly further includes a first fill valve connected to the second line.

As a further improved technical solution of the present invention, the pipeline assembly further includes a second valve assembly connecting the first pipeline and the fourth pipeline, the second valve assembly can control whether the first pipeline is connected or disconnected, and the second valve assembly can also control whether the fourth pipeline is connected or disconnected.

As a further improved technical solution of the present invention, the second valve assembly includes a third cut-off valve capable of controlling whether the first pipeline is opened or closed and a fourth cut-off valve capable of controlling whether the fourth pipeline is opened or closed, and the third cut-off valve and the fourth cut-off valve are tightly connected through a screw thread without a space.

As a further improved technical solution of the present invention, the first pipeline is detachably connected to the third stop valve, and the fourth pipeline is detachably connected to the fourth stop valve.

As a further improvement of the present invention, the line assembly further includes a second fill valve connected to the fourth line.

As a further improved technical solution of the present invention, the second pipeline is in threaded connection with the first stop valve, and the third pipeline is in threaded connection with the second stop valve; the first pipeline is in threaded connection with the third stop valve, and the fourth pipeline is in threaded connection with the fourth stop valve; the third pipeline is in threaded connection with the condenser inlet, and the fourth pipeline is in threaded connection with the condenser outlet.

As a further improved technical scheme of the invention, the evaporator is a micro-channel evaporator, the condenser is a plate heat exchanger, and the condenser further comprises a cooling liquid inlet and a cooling liquid outlet.

Compared with the prior art, the evaporator and the condenser are detachably connected through the pipeline assembly, so that the evaporator and the condenser can be conveniently disassembled for transportation, and the packaging and transportation cost is reduced; in addition, through the detachable connection, when the evaporator or the condenser breaks down, the working of the thermosiphon system can be maintained by accessing the replaced evaporator or condenser, and the normal use of undamaged parts is not influenced; finally, leakage of the refrigerant in the evaporator and the condenser can be reduced by arranging the first valve assembly, so that the maintenance cost is reduced.

Drawings

FIG. 1 is a schematic perspective view of a thermosiphon system of the present invention in one embodiment.

Fig. 2 is a front view of fig. 1, and shows a flow direction and a state of the refrigerant.

Fig. 3 is a rear view of fig. 1.

Fig. 4 is a left side view of fig. 1.

Fig. 5 is a top view of fig. 1.

Fig. 6 is a partially enlarged view of circled portion a in fig. 1.

Fig. 7 is a partially enlarged view of circled portion B in fig. 1.

Detailed Description

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. If several embodiments exist, the features of these embodiments may be combined with each other without conflict. When the description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The statements made in the following exemplary detailed description do not represent all implementations consistent with the present disclosure; rather, they are merely examples of apparatus, products, and/or methods consistent with certain aspects of the invention, as set forth in the claims below.

The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention. As used in the specification and claims of this invention, the singular form of "a", "an", or "the" is intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the use of terms such as "first," "second," and the like, in the description and in the claims of the present invention do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, the terms "front," "back," "up," "down," and the like in the description of the invention are used for convenience of description and are not limited to a particular position or spatial orientation. The word "comprise" or "comprises", and the like, is an open-ended expression meaning that an element that precedes "includes" or "comprising" includes "that the element that follows" includes "or" comprises "and its equivalents, that do not preclude the element that precedes" includes "or" comprising "from also including other elements. If the invention is referred to as "a plurality", it means two or more.

Referring to fig. 1 to 7, the present invention discloses a thermosiphon system, which includes an evaporator 1, a condenser 2, and a pipe assembly 3 detachably connecting the evaporator 1 and the condenser 2. The refrigerant in the thermosiphon system absorbs heat at the evaporator side and then is gasified, then the gaseous refrigerant releases heat at the condenser side and then becomes a liquid refrigerant, and the liquid refrigerant flows downwards under the action of gravity, and the circulation is carried out. The principles of the thermosiphon system are well known to those skilled in the art and the present invention will not be described in detail.

In the illustrated embodiment of the invention, the evaporator 1 is a microchannel evaporator comprising an evaporator inlet 11 and an evaporator outlet 12. In the illustrated embodiment of the invention, the condenser 2 is a plate heat exchanger, and the condenser 2 further comprises a condenser inlet 21, a condenser outlet 22, a coolant inlet 23, and a coolant outlet 24. Wherein the condenser inlet 21 is arranged side by side with the cooling liquid outlet 24 and the condenser outlet 22 is arranged side by side with the cooling liquid inlet 23. This arrangement is advantageous in that the refrigerant and the coolant form convection in the condenser 2, thereby improving heat exchange efficiency. The condenser 2 is located higher than the evaporator 1. The evaporator inlet 11 and the evaporator outlet 12 are horizontally arranged, the condenser inlet 21 and the condenser outlet 22 are vertically arranged, wherein the position of the condenser inlet 21 is higher than that of the condenser outlet 22. The coolant inlet 23 is located lower than the coolant outlet 24.

In the illustrated embodiment of the invention, the conduit assembly 3 comprises a first conduit 31 connected to the evaporator inlet 11, a second conduit 32 connected to the evaporator outlet 12, a third conduit 33 connected to the condenser inlet 21, a fourth conduit 34 connected to the condenser outlet 22, a first valve assembly 35 connecting the second conduit 32 to the third conduit 33, and a second valve assembly 36 connecting the first conduit 31 to the fourth conduit 34. Wherein the first valve assembly 35 is capable of controlling whether the second line 32 is on or off, and the first valve assembly 35 is also capable of controlling whether the third line 33 is on or off.

Specifically, in the illustrated embodiment of the present invention, the first valve assembly 35 includes a first stop valve 351 capable of controlling whether the second line 32 is opened or closed, and a second stop valve 352 capable of controlling whether the third line 33 is opened or closed. The first stop valve 351 and the second stop valve 352 are connected by a screw thread in a tight and gapless manner. Due to the arrangement, on one hand, the installation and the disassembly are convenient; on the other hand, air between the first cutoff valve 351 and the second cutoff valve 352 can be reduced as much as possible, and vacuum evacuation can be avoided when the valve is removed and then reinstalled. Of course, in other embodiments, the first valve assembly 35 may be a valve that is removable from the middle, and also provides for ease of installation and removal and avoidance of vacuum when reinstalling after removal.

The second line 32 is detachably connected (e.g., screwed) to the first shut-off valve 351, and the third line 33 is detachably connected (e.g., screwed) to the second shut-off valve 352. The pipe assembly 3 further includes a first filling valve 353 connected to the second pipe 32 for evacuating and filling refrigerant in the system initial state. Of course, the first filling valve 353 can be used for vacuumizing and filling the refrigerant after the fault side (evaporator side) is repaired.

The second valve assembly 36 can control whether the first pipeline 31 is opened or closed, and the second valve assembly 36 can also control whether the fourth pipeline 34 is opened or closed. Specifically, in the illustrated embodiment of the present invention, the second valve assembly 36 includes a third shutoff valve 361 configured to control whether the first line 31 is opened or closed, and a fourth shutoff valve 362 configured to control whether the fourth line 34 is opened or closed. The third cut-off valve 361 and the fourth cut-off valve 362 are tightly connected by a thread without a space. Due to the arrangement, on one hand, the installation and the disassembly are convenient; on the other hand, air between the third cut-off valve 361 and the fourth cut-off valve 362 can be reduced as much as possible, and vacuum-pumping during remounting after removal can be avoided. Of course, in other embodiments, the second valve assembly 36 may be constructed as a valve that is removable from the middle, again to facilitate installation and removal and to avoid vacuum pumping during reinstallation after removal.

In normal operation, the first valve assembly 35 and the second valve assembly 36 are opened, that is, the third cut-off valve 361 and the fourth cut-off valve 362 are opened, so that the fourth pipeline 34 is communicated with the first pipeline 31; the first cut-off valve 351 and the second cut-off valve 352 are also opened, and the second line 32 and the third line 33 are communicated with each other. At this time, the flow direction and state of the refrigerant are shown in fig. 2.

The first pipe 31 is detachably connected (e.g., screwed) to the third stop valve 361, and the fourth pipe 34 is detachably connected (e.g., screwed) to the fourth stop valve 362. The pipeline assembly 3 further includes a second filling valve 363 connected to the fourth pipeline 34 for evacuating and filling refrigerant in the system initial state. Of course, the second filling valve 363 may be used for vacuuming and filling the refrigerant after the fault side (condenser side) is repaired. The third line 33 is removably connected (e.g., threaded) to the condenser inlet 21 and the fourth line 34 is removably connected (e.g., threaded) to the condenser outlet 22.

Compared with the prior art, two stop valves are respectively arranged at two ends of the evaporator side and the condenser side, when the evaporator 1 or the condenser 2 fails, the working of a thermosiphon system can be maintained by connecting the replaced evaporator or condenser, and the normal use of undamaged parts is not influenced. In other words, when one of the evaporator 1 or the condenser 2 is out of order, the other side may be shut down so that the other side is not affected, and the failed side may be replaced or repaired by a rotary joint. The evaporator 1 and the condenser 2 are detachably connected through the pipeline assembly 3, so that the evaporator 1, the condenser 2 and the pipeline assembly 3 are conveniently disassembled for transportation, and the packaging and transportation cost is reduced; the first valve assembly 35 and the second valve assembly 36 can prevent the refrigerant in the evaporator 1 and the condenser 2 from leaking, and the system is assembled without vacuumizing and supplementing the refrigerant after transportation. That is, the thermosiphon system of the present invention can avoid the user from filling and leak detection in the field (these conditions are not generally available in the field, and the related skill of the worker is not sufficient to ensure quality); and the work of filling, leak detection and the like can be finished by a manufacturer, so that the field installation is greatly facilitated, and the failure risk is reduced. In addition, when in maintenance, the evaporator side and the condenser side can control the opening and closing and filling of the refrigerant at the side through the stop valves at the side, so that the maintenance and the replacement of the evaporator side and the condenser side are facilitated, the leakage of the refrigerant in the evaporator 1 and the condenser 2 is reduced, and the maintenance cost is reduced. All parts in the thermosiphon system are connected in a detachable mode (such as threaded connection) without welding, so that the system is more convenient and safer to install or maintain.

The above embodiments are only for illustrating the invention and not for limiting the technical solutions described in the invention, and the understanding of the present invention should be based on the technical personnel in the technical field, and although the present invention has been described in detail by referring to the above embodiments, the technical personnel in the technical field should understand that the technical personnel in the technical field can still make modifications or equivalent substitutions to the present invention, and all the technical solutions and modifications thereof without departing from the spirit and scope of the present invention should be covered in the claims of the present invention.