Device and method for testing shunting effect of jet fuel filter element

Abstract

The invention relates to a device and a method for testing the shunting effect of a jet fuel filter element, and relates to the field of filter element performance detection.The device comprises a first pump, a first valve, a flow monitoring device, a testing unit and a second valve which are connected in sequence; the second valve is connected with the pump through the oil storage equipment; the pump and the first valve are connected through a branch and a second valve; an impurity injection unit is arranged between the first valve and the flow monitoring equipment; the testing unit comprises a pipe body, and at least one filter element is arranged in the pipe body; the filter element is independently provided with at least one pressure sensor group and at least one flow meter; the liquid inlet end and the liquid outlet end of the testing unit are respectively provided with at least one pressure sensor; and a liquid discharge end is arranged on the pipe body. According to the device provided by the invention, by virtue of the designed test unit, the effect indexes such as pressure and flow of a single or a plurality of filter elements for filtering jet fuel can be compared and analyzed, so that the filtering performance of the filter elements can be tested.

Description

Technical Field

[0001] The invention relates to the field of filter element performance detection, and in particular to a jet fuel filter element diversion effect testing device and testing method. Background Art

[0002] At present, there are various testing methods for filter element performance. For example, CN109520906A discloses a multi-purpose comprehensive filtration performance test device, which includes: the filter element to be tested is installed in a test platform, and the test platform includes an inner cavity within the range of the filter element to be tested and an outer cavity outside the range of the filter element to be tested; a pressure testing device is installed on the test platform; a filling device of the test platform is connected to the outer cavity; a circulating filtration device is connected to the inner cavity and the outer cavity; and a backwashing device is connected to the inner cavity.

[0003] CN118275323A discloses a filter element performance detection device and a detection method thereof, comprising a bottom plate, a first support plate and a second support plate, both of which are arranged on the top of the bottom plate, a closed cylinder, which is arranged on the right side of the first support plate, a fixing mechanism, which is arranged inside the closed cylinder, a blocking mechanism, which is arranged in the middle of the fixing mechanism, and a detection mechanism, which is arranged on the right side of the first support plate. The detection process of this scheme comprises: starting a motor to drive a rotating plate to rotate, the rotating plate drives a first fixing rod to move, the first fixing rod drives a cross block 1 to move with an inner clamping plate, and when the first fixing rod moves, it drives a first connecting strip and a T-block to move, the T-block drives a second connecting strip and a second fixing rod to move, the second fixing rod drives a cross block 2 and an outer clamping plate to move, and then the inner clamping plate and the outer clamping plate clamp and fix the inner and outer walls of the filter element at the same time, which is not easy to cause the filter element to sink or bulge, thereby ensuring that the filter element is not easily damaged and the filtering performance is guaranteed.

[0004] However, the above-mentioned test device for filter elements is mainly used for testing the filtering performance of various filter elements and filter bags in the chemical industry and for testing gas purification filter elements such as air purifiers, and is not used for testing jet fuel filter elements.

[0005] Although CN117825236A discloses a device and method for testing the performance of jet fuel solid-liquid filtration and agglomeration materials, the inlet of the colloid mill in the device is connected to the oil tank and the water tank through the first oil pipeline and the water pipeline respectively; the inlet of the slurry tank is connected to the oil tank through the second oil pipeline; the injection port of the mixing unit is selectively connected to the outlet of the colloid mill through the oil-water emulsion output pipeline and / or connected to the outlet of the slurry tank through the oil-solid impurity slurry output pipeline; the inlet of the mixing unit is connected to the oil tank through the third oil pipeline, and its outlet is connected to the liquid collecting tank through the test pipeline; the filter element diaphragm test unit is arranged in series with the test pipeline, and the jet fuel mixture in the mixing unit is subjected to solid particle impurity filtering and / or droplet agglomeration to test the material performance of the filter element diaphragm in the filter element diaphragm test unit; the material of the filter element diaphragm matches the jet fuel solid-liquid filtration and agglomeration material to be tested.

[0006] However, it tests the filter membrane and cannot reasonably test the filter element, which is not conducive to the analysis of the filtration performance of the jet fuel filter element. Summary of the invention

[0007] In view of the problems existing in the prior art, the purpose of the present invention is to provide a device and method for testing the diversion effect of a jet fuel filter element, so as to solve the defect that the prior art cannot reasonably evaluate the filtering performance of the jet fuel filter element.

[0008] To achieve this object, the present invention adopts the following technical solutions:

[0009] In a first aspect, the present invention provides a flow diversion effect test device for a jet fuel filter element, the flow diversion effect test device comprising:

[0010] A first pump, a first valve, a flow monitoring device, a test unit, and a second valve connected in sequence;

[0011] The second valve is connected to the pump via an oil storage device;

[0012] The pump and the first valve are connected to the second valve via a branch line;

[0013] An impurity injection unit is provided between the first valve and the flow monitoring device;

[0014] The test unit comprises a tube body, in which at least one filter element is arranged;

[0015] The filter element is independently configured with at least one pressure sensor group and at least one flow meter;

[0016] The liquid inlet and outlet of the test unit are each provided with at least one pressure sensor;

[0017] The tube body is provided with a liquid discharge end.

[0018] The diversion effect testing device provided by the present invention can realize comparative analysis of effect indicators such as pressure and flow of a single or multiple filter elements for filtering jet fuel with the help of the designed testing unit, and then realize the filtering performance test of the filter element, thereby solving the problem of the lack of filtering performance testing process for jet fuel filter elements.

[0019] As a preferred technical solution of the present invention, the impurity injection unit includes an impurity storage device, a second pump and a third valve which are connected in sequence.

[0020] Preferably, the third valve is connected to the pipeline between the first valve and the flow monitoring device through a pipeline.

[0021] As a preferred technical solution of the present invention, the pressure sensor group includes a first pressure sensor relatively arranged inside the filter element and a second pressure sensor outside the filter element.

[0022] As a preferred technical solution of the present invention, a fourth valve is provided on the branch line.

[0023] As a preferred technical solution of the present invention, the liquid discharge end is provided with a fifth valve.

[0024] As a preferred technical solution of the present invention, the pressure sensor group, the pressure sensor and the flow meter are all connected to a host computer.

[0025] In a second aspect, the present invention provides a method for testing the flow separation effect of a jet fuel filter element, the flow separation test effect method comprising:

[0026] The filter performance of the filter element is analyzed by injecting jet fuel and impurities into the test cell while monitoring the pressure drop and flow rate of the test cell.

[0027] As a preferred technical solution of the present invention, injecting jet fuel and impurities into the test unit includes: adjusting the first valve, the second valve and the third valve to an open state, adjusting the fourth valve and the fifth valve to a closed state, and starting the first pump and the second pump.

[0028] As a preferred technical solution of the present invention, in the diversion test effect method, when the filtration amount of impurities in the test liquid in the test unit reaches a limit, the fifth valve is opened to discharge the liquid.

[0029] As a preferred technical solution of the present invention, when the test unit is undergoing filter element replacement or maintenance, the first valve, the second valve, the third valve and the fifth valve are closed, and the fourth valve is opened.

[0030] Compared with the prior art solutions, the present invention has the following beneficial effects:

[0031] (1) The test scheme provided by the present invention can monitor the flow distribution and pressure difference changes of each filter element in a filter that uses multiple filter elements in combination, and can also test the filtration performance of a single filter element throughout the filtration life, and monitor the pressure drop changes before and after the filter element and the changes in the permeability from the initial use of the filter element to the end of its life.

[0032] (2) The present invention can test and monitor the flow diversion effect of filters of different models and sizes in the field of jet fuel in real time. For filters with different numbers and positions, the usage of a single filter element can be understood. Furthermore, the filtering performance of each filter element can be tested and feedback can be provided through flow distribution, which helps to understand the usage of jet fuel filters. The test process proposed by the present invention effectively solves the problem of performance prediction of jet fuel filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic diagram of a jet fuel filter element flow diversion effect testing device provided by an embodiment of the present invention;

[0034] Figure 2 It is a schematic diagram of testing a filter element in a test unit in a jet fuel filter element diversion effect test device provided by an embodiment of the present invention;

[0035] Figure 3 It is a schematic diagram of testing multiple filter elements in a test unit in a jet fuel filter element diversion effect test device provided by an embodiment of the present invention.

[0036] In the figure: 100-first pump, 200-first valve, 300-flow monitoring equipment, 400-test unit, 410-tube body, 420-filter element, 430-pressure sensor group, 440-flow meter, 450-pressure sensor, 461-discharge end, 462-fifth valve, 470-cable, 500-second valve, 610-impurity storage equipment, 620-second pump, 630-third valve, 700-oil storage equipment, 800-fourth valve, 900-host computer.

[0037] The present invention is further described in detail below. However, the following examples are only simplified examples of the present invention and do not represent or limit the scope of protection of the present invention. The scope of protection of the present invention shall be subject to the claims. DETAILED DESCRIPTION

[0038] To better illustrate the present invention and facilitate understanding of the technical solution of the present invention, typical but non-limiting embodiments of the present invention are as follows:

[0039] This embodiment provides a jet fuel filter element diversion effect test device, such as Figure 1 , Figure 2 and Figure 3 As shown, the diversion effect testing device comprises:

[0040] A first pump 100, a first valve 200, a flow monitoring device 300, a test unit 400 and a second valve 500 connected in sequence;

[0041] The second valve 500 is connected to the pump via a liquid storage device 700;

[0042] The pump and the first valve 200 are connected to the second valve 500 via a branch line;

[0043] An impurity injection unit is provided between the first valve 200 and the flow monitoring device 300;

[0044] The test unit 400 includes a tube body 410, and at least one filter element 420 is disposed in the tube body 410;

[0045] The filter element 420 is independently configured with at least one pressure sensor group 430 and at least one flow meter 440;

[0046] The liquid inlet and outlet ends of the test unit 400 are each provided with at least one pressure sensor 450;

[0047] The tube body 410 is provided with a liquid discharge end 461 .

[0048] In the present invention, a filter element 420 is disposed in the tube body 410 of the test unit 400, as shown in FIG. Figure 2 As shown; a schematic diagram of a plurality of filter elements 420 such as two filter elements 410 are provided in the tube body 400 of the test unit, as shown Figure 3 shown.

[0049] In the present invention, the pressure sensor group 430 and the flow meter 440 configured on the filter element 420 are set at the corresponding position of the filter element 420 according to the detection requirements. If only the pressure and flow rate at one position need to be detected, the pressure sensor group 430 and the flow meter 440 can be set at the corresponding position. If the pressure and flow rate at multiple positions need to be detected, such as the head end, middle part, and end of the filter element 420, multiple pressure sensor groups 430 and flow meters 440 are set at the corresponding multiple positions.

[0050] Among them, the pressure sensor group 430 includes a first pressure sensor relatively arranged inside the filter element 420 and a second pressure sensor outside the filter element 420, that is, pressure sensors are respectively arranged inside and outside the same position of the filter element 420 to detect the pressure difference at the corresponding position of the filter element 420.

[0051] The head end refers to the position corresponding to the jet fuel flowing into the filter element 420 or flowing out of the filter element 420, and the position corresponding to the head end is the end end.

[0052] Furthermore, the filter element 420 can be connected through a slot and a head of a test unit. Different models and quantities of filter elements 420 can be replaced with different heads. The inlet pipe of the test unit is connected to the internal cavity of the filter element 420. The tail end of the filter element 420 can be optionally sealed with an end cap or a filter layer seal.

[0053] The impurity injection unit includes an impurity storage device 610, a second pump 620 and a third valve 630 which are connected in sequence.

[0054] In the present invention, impurities such as solid particles and / or liquid impurities such as water are injected into the filter element 420 of the test unit 400 through the impurity injection unit, thereby simulating the filtering object and ensuring the performance of the actual filtering effect.

[0055] The third valve 630 is connected to the pipeline between the first valve 200 and the flow monitoring device 300 through a pipeline.

[0056] Wherein, a fourth valve 800 is arranged on the branch line.

[0057] In the present invention, through the design of the branch road and with the help of the opening and closing of the fourth valve 800 on the branch road, when it is necessary to replace the filter element 420 or to perform maintenance on the test device, the first valve 200 and the second valve 500 can be closed to disconnect the test device passage, and the fourth valve 800 can be opened to maintain the circulation connection, thereby achieving the replacement of the test filter element 420 and the maintenance and repair of the device without stopping the machine.

[0058] The liquid discharge end 461 is provided with a fifth valve 462 .

[0059] In the present invention, by configuring the fifth valve 462, when the filtering amount of impurities such as water, particles, etc. exceeds the limit, the impurities deposited at the bottom of the test unit 400 can be discharged.

[0060] The pressure sensor group 430 , the pressure sensor 450 and the flow meter 440 are all connected to the host computer 900 .

[0061] In the present invention, the connection between the pressure sensor group 430 , the pressure sensor 450 , and the flow meter 440 and the host computer 900 is achieved through the cable 470 .

[0062] In the present invention, optionally, the inlet and outlet pipes of the head of the test unit can be respectively provided with channels for the cable 470, which are elongated hollow structures; the pressure sensors can be selectively respectively provided in the internal cavity of the test device and each filter element 420 to monitor the internal pressure changes; the pressure sensors are arranged at intervals in the filter element 420, and the positions of the filter element 420 where the pressure sensors are provided are sealed both inside and outside;

[0063] Furthermore, the seal between the cable channel and the cable 470 may be formed by deforming an elastic material, or by using a solidifying liquid glue to meet the requirement of the internal and external pressure difference for static sealing.

[0064] In the present invention, flow meters 440 may be optionally provided at different positions of each filter element 420 to monitor the flow rate at different positions, and the flow rate may be fed back to the host computer 900 for monitoring the uniformity of the flow rate.

[0065] In the present invention, with the help of the results of the pressure sensor, flow meter 440 and flow monitoring device 300, the host computer 900 is used to monitor and control the flow and pressure changes required during the test process, so that the filtering performance of the filter element 420 is analyzed online in real time.

[0066] In the present invention, the first valve 200, the second valve 500, the third valve 630, the fourth valve 800 and the fifth valve 462 used can be optionally configured as electric control valves or manual valves; when manual valves are used, the opening and closing of the system is manually performed, and when electric control valves are used, the electric control valves can be connected to the host computer 900, and the opening and closing of the valves can be controlled by the host computer 900, thereby realizing automatic control of the detection device.

[0067] Furthermore, the present invention provides a method for testing the flow separation effect of a jet fuel filter element 420, the flow separation effect testing method comprising:

[0068] Jet fuel and impurities are injected into the test unit 400 , and the pressure drop and flow rate of the test unit 400 are monitored simultaneously, so as to analyze the filtering performance of the filter element 420 .

[0069] The injecting of the jet fuel and impurities into the test unit 400 includes: adjusting the first valve 200 , the second valve 500 and the third valve 630 to an open state, adjusting the fourth valve 800 and the fifth valve 462 to a closed state, and starting the first pump 100 and the second pump 620 .

[0070] In the diversion test effect method, when the filtering amount of impurities in the test liquid in the test unit 400 reaches a limit, the fifth valve 462 is opened to discharge the liquid.

[0071] When the test unit 400 replaces or performs maintenance on the filter element 420 , the first valve 200 , the second valve 500 , the third valve 630 , and the fifth valve 462 are closed, and the fourth valve 800 is opened.

[0072] Further, in order to illustrate the actual test effect that can be achieved by the jet fuel filter element diversion effect test device provided by the present invention, the following actual example is used for illustration, as follows:

[0073] Example 1

[0074] This embodiment provides a test device for the flow separation effect of a jet fuel filter element, which is as follows:

[0075] A first pump, a first valve, a flow monitoring device, a test unit, and a second valve connected in sequence;

[0076] The second valve is connected to the pump via an oil storage device;

[0077] The pump and the first valve are connected to the second valve via a branch line;

[0078] An impurity injection unit is provided between the first valve and the flow monitoring device;

[0079] The test unit comprises a tube body, in which at least one filter element is arranged;

[0080] The filter element is independently equipped with three pressure sensor groups and a flow meter;

[0081] The liquid inlet and outlet ends of the test unit are respectively provided with a pressure sensor for testing the pressure difference of the test unit;

[0082] The tube body is provided with a liquid discharge end;

[0083] The flow meter is arranged at the front end of the filter element, i.e., the inlet of the material, to measure the flow rate at the inflow of the filter element;

[0084] Wherein, the pressure sensor group includes: a first pressure sensor disposed inside the filter element at corresponding positions and a second pressure sensor outside the filter element;

[0085] Wherein, the impurity injection unit comprises an impurity storage device, a second pump and a third valve connected in sequence;

[0086] Wherein, the third valve is connected to the pipeline between the first valve and the flow monitoring device through a pipeline;

[0087] Wherein, a fourth valve is provided on the branch line;

[0088] Wherein, the liquid discharge end is provided with a fifth valve;

[0089] Wherein, the pressure sensor group, pressure sensor and flow meter are all connected to the host computer;

[0090] In the present invention, the first valve, the second valve, the third valve, the fourth valve and the fifth valve are all electrically controlled valves, and the electrically controlled valves are connected to a host computer, and the opening and closing of the valves are controlled by the host computer.

[0091] The testing process is as follows:

[0092] Inject jet fuel and impurities into the test unit, monitor the pressure drop and flow rate of the test unit, and analyze the filter performance of the filter element;

[0093] The injecting of jet fuel and impurities into the test unit includes: adjusting the first valve, the second valve and the third valve to an open state, adjusting the fourth valve and the fifth valve to a closed state, and starting the first pump and the second pump; when the filtering amount of the test liquid impurities in the test unit reaches a limit in the diversion test effect method, opening the fifth valve to discharge the liquid;

[0094] Among them, the test results for a single filter element are as follows:

[0095] The test flow rate is 32.85m 3 / h, the total pressure difference of the test device is 39.6kPa, the pressure differences of the three test points are 31.5kPa, 32.8kPa, and 34.6kPa respectively, and the filter element inlet flow rate is 32.13m 3 / h, thereby evaluating the filter element performance.

[0096] Among them, the test results for the two filter elements are as follows:

[0097] The test flow rate is 65.65m 3 / h, the total pressure difference of the test device is 41.6kPa, the pressure differences of the three test points of filter element A are 32.5kPa, 33.8kPa, and 34.7kPa respectively, and the pressure differences of the three test points of filter element B are 33.1kPa, 34.1kPa, and 34.9kPa respectively. The inlet flow rate of filter element A is 32.63m 3 / h, the inlet flow rate of filter element B is 32.92m 3 / h, thereby evaluating the filter element performance.

[0098] In summary, the diversion effect testing device provided by the present invention can realize comparative analysis of effect indicators such as pressure and flow of a single or multiple filter elements for filtering jet fuel through the designed testing device, and then realize the filtering performance test of the filter element, thereby solving the problem of the lack of filtering performance testing process for jet fuel filter elements.

[0099] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0100] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0101] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A jet fuel filter element diversion effect test device, characterized in that: The shunting effect testing device comprises: A first pump, a first valve, a flow monitoring device, a test unit, and a second valve connected in sequence; The second valve is connected to the pump via an oil storage device; The pump and the first valve are connected to the second valve via a branch line; An impurity injection unit is provided between the first valve and the flow monitoring device; The test unit comprises a tube body, in which at least one filter element is arranged; The filter element is independently configured with at least one pressure sensor group and at least one flow meter; The liquid inlet and outlet of the test unit are each provided with at least one pressure sensor; The tube body is provided with a liquid discharge end.

2. The diversion effect testing device according to claim 1, characterized in that: The impurity injection unit includes an impurity storage device, a second pump and a third valve connected in sequence; Preferably, the third valve is connected to the pipeline between the first valve and the flow monitoring device through a pipeline.

3. The diversion effect testing device according to claim 1, characterized in that: The pressure sensor group includes a first pressure sensor relatively arranged inside the filter element and a second pressure sensor outside the filter element.

4. The diversion effect testing device according to claim 1, characterized in that: The branch line is provided with a fourth valve.

5. The diversion effect testing device according to claim 1, characterized in that: The liquid discharge end is provided with a fifth valve.

6. The diversion effect testing device according to claim 1, characterized in that: The pressure sensor group, pressure sensor and flow meter are all connected to the host computer.

7. A method for testing the diversion effect of a jet fuel filter element, characterized in that: The diversion test effect method comprises: The filter performance of the filter element is analyzed by injecting jet fuel and impurities into the test cell while monitoring the pressure drop and flow rate of the test cell.

8. The method for testing the flow separation effect as claimed in claim 7, characterized in that: The injecting of the jet fuel and the impurities into the test unit includes: adjusting the first valve, the second valve and the third valve to an open state, adjusting the fourth valve and the fifth valve to a closed state, and starting the first pump and the second pump.

9. The method for testing the flow separation effect as claimed in claim 7, characterized in that: In the diversion test effect method, when the filtration amount of impurities in the test liquid in the test unit reaches a limit, the fifth valve is opened to discharge the liquid.

10. The method for testing the flow separation effect as claimed in claim 7, characterized in that: When the test unit is undergoing filter element replacement or maintenance, the first valve, the second valve, the third valve and the fifth valve are closed, and the fourth valve is opened.

Images