1. A performance testing device of a multifunctional water filter element is characterized by comprising a test water tank, wherein a liquid outlet at the bottom of the test water tank is sequentially connected with a test pump set, a tested piece, an electric regulating valve, a turbine flowmeter and a function switching valve through pipelines, a liquid outlet at one side of the function switching valve is connected with a liquid inlet at the upper part of the test water tank through a pipeline, a liquid outlet at the other side of the function switching valve is connected with a liquid inlet at the upper part of the test water tank through a pipeline and a high-precision purifying filter, a pressure sensor and a liquid inlet particle counter are respectively connected on the pipeline between the test pump set and a tested piece, the liquid discharge end of the liquid inlet particle counter is connected with a liquid inlet at the upper part of the test water tank through a pipeline, a liquid outlet particle counter is connected on the pipeline between the tested piece and the electric regulating valve, the bottom of the liquid particle counter is provided with a drain pipe, and pipelines at two sides of the tested piece are connected with a differential pressure sensor which is connected with the tested piece in parallel.

2. The multifunctional water filter element performance testing device of claim 1, wherein: the test water tank is internally provided with a stirring device, the side wall of the test water tank is provided with a heating belt, the side wall of the test water tank is provided with a temperature sensor and a liquid level sensor, an inlet at the upper part of the test water tank is connected with a peristaltic pump through a pipeline, and the peristaltic pump is connected with a liquid collecting tank through a pipeline.

3. The multifunctional water filter element performance testing device of claim 1, wherein: and a switching electromagnetic valve is connected on a pipeline between the test water tank and the test pump set, the switching electromagnetic valve is connected with the liquid collecting tank through a pipeline, and a sampling valve is connected on a pipeline between the test pump set and a tested piece.

4. The multifunctional water filter element performance testing device of claim 1, wherein: one side of experimental water tank is equipped with dirty water injection case and storage water tank, dirty water injection bottom of the case liquid outlet pass through the pipeline in proper order with dirty circulating pump, the coil pipe heat exchanger is connected with electronic three way switch ball valve, this electronic three way switch ball valve one side liquid outlet passes through the pipeline and is connected with dirty water injection case upper portion inlet and experimental water tank upper portion inlet, and be equipped with the pump package on the pipeline of connecting experimental water tank, electronic three way switch ball valve opposite side liquid outlet passes through pipeline and purifier and is connected with dirty water injection case upper portion inlet, storage water tank bottom of the case liquid outlet passes through the pipeline in proper order and is connected with manual three way valve and water filling pump, the pipeline that this water filling pump liquid outlet is connected with experimental water tank upper portion inlet and dirty water injection case upper portion inlet respectively through two lateral lines, be equipped with switch solenoid valve on two lateral lines respectively.

5. The multifunctional water filter element performance testing device of claim 1, wherein: the inside agitating unit that is equipped with of sewage water injection case is equipped with the heat band on the lateral wall of sewage water injection case, is equipped with temperature sensor and level sensor on the sewage water injection case lateral wall.

6. The multifunctional water filter element performance testing device of claim 1, wherein: the pipeline that the water feeding pump liquid outlet is connected with switch solenoid valve, and this switch solenoid valve passes through the pipeline and is connected with storage water tank upper portion inlet, is connected with switch solenoid valve on the pipeline between dirty water injection case and the dirty circulating pump of annotating, and this switch solenoid valve passes through the pipeline and is connected with the catch basin.

Background

The filtration efficiency is one of the important performances of a filter or a filter element, the filtration efficiency aiming at certain particle sizes is a key index for reflecting the filtration performance of the filter element, and the related test of the water filter element in China is always in a blank stage at present.

The water filter element testing system is easy to settle pollutants (namely standard dust) in water, brings great trouble to the testing process, and effectively interferes, such as stirring, flow rate control in a pipeline, concentration control and the like, through technical means and additional devices, so that a turbulent flow state is formed, and the testing purpose is finally achieved.

Because fluid viscosity is great, relatively easier control in oil, because the viscosity of water is lower, more difficult control, this is exactly as one of the difficult points of water filter core capability test, because the test principle of water filter core is the same with the test principle of oil, the key is the control dust particle is stable in aqueous and sedimentation velocity to realize the purpose of finally accomplishing the test, on this basis, it is necessary to design one kind and can switch the multi-functional water filter core capability test device who is suitable for different standards and operating mode test according to different test requirements.

Disclosure of Invention

The invention solves the technical problem of providing a multifunctional water filter element performance testing device which can be switched to be suitable for different standards and working condition tests according to different testing requirements.

The invention adopts the following technical scheme for solving the technical problems, and the multifunctional water filter element performance testing device is characterized by comprising a test water tank, wherein a liquid outlet at the bottom of the test water tank is sequentially connected with a test pump set, a tested piece, an electric regulating valve, a turbine flow meter and a function switching valve through pipelines, a liquid outlet at one side of the function switching valve is connected with a liquid inlet at the upper part of the test water tank through a pipeline, a liquid outlet at the other side of the function switching valve is connected with a liquid inlet at the upper part of the test water tank through a pipeline and a high-precision purification filter, a pressure sensor and a liquid inlet particle counter are respectively connected on the pipeline between the test pump set and the tested piece, a liquid outlet particle counter is connected on the pipeline between the tested piece and the electric regulating valve through a pipeline, and a drain pipe is arranged at the bottom of the liquid particle counter, and the pipelines at the two sides of the tested piece are connected with a differential pressure sensor which is connected with the tested piece in parallel.

Further inject, the inside agitating unit that is equipped with of experimental water tank is equipped with the heating band on the lateral wall of experimental water tank, is equipped with temperature sensor and level sensor on the experimental water tank lateral wall, and experimental water tank upper portion inlet passes through the pipeline to be connected with the peristaltic pump, and the peristaltic pump passes through the pipeline and links to each other with the catch basin.

Further limiting, a switching electromagnetic valve is connected on a pipeline between the test water tank and the test pump set, the switching electromagnetic valve is connected with the liquid collecting tank through a pipeline, and a sampling valve is connected on a pipeline between the test pump set and the tested piece.

Further inject, one side of experimental water tank is equipped with dirty water injection case and storage water tank, dirty water injection bottom of the case liquid outlet pass through the pipeline in proper order with dirty circulation pump, the coil pipe heat exchanger is connected with electronic three way switch ball valve, this electronic three way switch ball valve one side liquid outlet passes through the pipeline and is connected with dirty water injection case upper portion inlet and experimental water tank upper portion inlet, and be equipped with the pump package on the pipeline of connecting experimental water tank, electronic three way switch ball valve opposite side liquid outlet passes through the pipeline and purifier is connected with dirty water injection case upper portion inlet, storage water tank bottom of the case liquid outlet pass through the pipeline in proper order with manual three-way valve and add the water pump and be connected, the pipeline that this adds the water pump liquid outlet and connect is connected with experimental water tank upper portion inlet and dirty water injection case upper portion inlet respectively through two lateral lines, be equipped with solenoid valve on two lateral lines respectively.

Further inject, the inside agitating unit that is equipped with of sewage injection tank is equipped with the heat band on the lateral wall of sewage injection tank, is equipped with temperature sensor and level sensor on the sewage injection tank lateral wall.

Further inject, be connected with switch solenoid valve on the pipeline that the filler pump liquid outlet is connected, this switch solenoid valve passes through the pipeline and is connected with storage water tank upper portion inlet, is connected with switch solenoid valve on the pipeline between dirty water injection case and the dirty circulating pump of annotating, and this switch solenoid valve passes through the pipeline and is connected with the catch basin.

Compared with the prior art, the invention has the following advantages and beneficial effects: the invention integrates the multifunctional and integrated test device of the flow pressure drop characteristic of the filter, the anti-cracking characteristic of the filter, the opening characteristic of the bypass valve, the multi-pass test characteristic under the pulsating flow and the like on the basis of the multi-pass test characteristic pair, and can be switched according to different test requirements, thereby being suitable for the test of different standards and working conditions. In addition, the invention can complete the test of two filtering performances of multiple passes and single pass through the function switching valve and the program setting.

Drawings

Fig. 1 is a schematic structural view of the present invention.

In the figure: 1-sewage injection tank, 2-liquid level sensor, 3-temperature sensor, 4-switch electromagnetic valve, 5-sewage injection circulating pump, 6-purifying filter, 7-coil heat exchanger, 8-electric three-way switch ball valve, 9-water storage tank, 10-manual three-way valve, 11-water feeding pump, 12-sampling valve, 13-test pump set, 14-pressure sensor, 15-water discharging pipe, 16-liquid particle counter, 17-tested piece, 18-electric regulating valve, 19-differential pressure sensor, 20-turbine flowmeter, 21-peristaltic pump, 22-test water tank, 23-stirring device, 24-heating belt, 25-functional switching valve and 26-high-precision purifying filter.

Detailed Description

The technical scheme of the invention is described in detail by combining the attached drawings, the multifunctional water filter core performance testing device comprises a testing water tank 22, a liquid outlet at the bottom of the testing water tank 22 is sequentially connected with a testing pump group 13, a tested piece 17, an electric regulating valve 18, a turbine flow meter 20 and a function switching valve 25 through pipelines, a liquid outlet at one side of the function switching valve 25 is connected with a liquid inlet at the upper part of the testing water tank 22 through a pipeline, a liquid outlet at the other side of the function switching valve 25 is connected with a liquid inlet at the upper part of the testing water tank 22 through a pipeline and a high-precision purifying filter 26, a pressure sensor 14 and a liquid inlet particle counter are respectively connected on the pipeline between the testing pump group 13 and the tested piece 17, a liquid outlet particle counter discharge end is connected with the liquid inlet at the upper part of the testing water tank 22 through a pipeline, a liquid outlet particle counter 16 is connected on the pipeline between the tested piece 17 and the electric regulating valve 18, a water outlet particle counter 16 is provided with a water outlet pipe 15 at the bottom, to the pipe lines on both sides of the test object 17, differential pressure sensors 19 are connected in parallel with the test object 17.

A stirring device 23 is arranged in a test water tank 22, a heating belt 24 is arranged on the side wall of the test water tank 22, a temperature sensor and a liquid level sensor are arranged on the side wall of the test water tank 22, a liquid inlet at the upper part of the test water tank 22 is connected with a peristaltic pump 21 through a pipeline, and the peristaltic pump 21 is connected with a liquid collecting tank through a pipeline.

A switching electromagnetic valve is connected on a pipeline between a test water tank 22 and a test pump set 13, the switching electromagnetic valve is connected with a liquid collecting tank through a pipeline, and a sampling valve 12 is connected on a pipeline between the test pump set 13 and a tested piece 17.

A sewage injection tank 1 and a water storage tank 9 are arranged on one side of a test water tank 22, a liquid outlet at the bottom of the sewage injection tank 1 is sequentially connected with a sewage injection circulating pump 5, a coil heat exchanger 7 and an electric three-way switch ball valve 8 through pipelines, a liquid outlet at one side of the electric three-way switch ball valve 8 is connected with a liquid inlet at the upper part of the sewage and water injection tank 1 and a liquid inlet at the upper part of the test water tank 22 through pipelines, a pump set is arranged on a pipeline connected with the test water tank 22, a liquid outlet at the other side of the electric three-way switch ball valve 8 is connected with a liquid inlet at the upper part of the sewage and water tank 1 through a pipeline and a purification filter 6, a liquid outlet at the bottom of the water tank 9 is sequentially connected with a manual three-way valve 10 and a water adding pump 11 through pipelines, the pipeline connected with the liquid outlet of the water adding pump 11 is respectively connected with the liquid inlet at the upper part of the test water tank 22 and the liquid inlet at the upper part of the sewage and water injection tank 1 through two branch pipelines, and the two branch pipelines are respectively provided with a switch electromagnetic valve.

A stirring device is arranged in the sewage injection tank 1, a heating belt is arranged on the side wall of the sewage injection tank 1, and a temperature sensor 3 and a liquid level sensor 2 are arranged on the side wall of the sewage injection tank 1.

A pipeline connected with a liquid outlet of a water adding pump 11 is connected with a switch electromagnetic valve, the switch electromagnetic valve is connected with a liquid inlet at the upper part of a water storage tank 9 through a pipeline, a pipeline between a sewage injection tank 1 and a sewage injection circulating pump 5 is connected with a switch electromagnetic valve 4, and the switch electromagnetic valve 4 is connected with a liquid collecting tank through a pipeline.

The multi-pass test and the single-pass test are different, particularly the single-pass test generally needs to prepare a large amount of test media with very high cleanliness, the flow is calculated at 50L/min, the standard 500L test media theoretically only has 10min, the actual effective data is less than 6min according to the test particle counting rule, 1/4-1/2 of the test flow is only needed for the test media with high cleanliness, even if the test media with the volume of at least 25L is calculated according to 100L/min, the test can be met, and a large amount of energy and loss are saved.

The test principle of the invention is as follows:

when the test is passed through for a plurality of times, the test medium in the test water tank is input into the pipeline by the test pump group, through being tested the piece, and through pressure gauge (not limited to sensor, manometer etc.) and differential pressure gauge (not limited to sensor, manometer etc.) feedback information, adjust the flow through the electric regulating valve, and feed back through turbine flowmeter, function switching valve is in the through state this moment, the test medium directly gets back to in the test water tank, there are liquid level control, stirring control, temperature control (through temperature perception, control is heated or is cooled down), liquid level volume balance control etc. in the test water tank through program control steady operation.

When the single is through experimental, the test medium in the test water tank is inputed to the pipeline by test pump package in, through being tested the piece, and through pressure gauge (not limited to the sensor, manometer etc.) and differential pressure gauge (not limited to the sensor, manometer etc.) feedback information, adjust the flow through electric control valve, and feed back through turbine flowmeter, function switching valve switching flow direction this moment, the test medium gets back to in the test water tank through high accuracy purifying and filtering ware, there is liquid level control in the test water tank, stirring control, temperature control (through temperature perception, control is warmed up or is cooled down), liquid level volume balance control etc. through program control steady operation.

The device provided by the invention can meet different testing requirements by switching different original pairs, and achieves the effects of value sharing, function expansion, efficient utilization and the like.

While there have been shown and described what are at present considered the fundamental principles of the invention, its essential features and advantages, the invention further resides in various changes and modifications which fall within the scope of the invention as claimed.