Bag type dust collector testing device

Abstract

The invention relates to the technical field of testing of mechanical parts, in particular to a bag type dust collector testing device which comprises an air distribution box, at least two pulse valve connectors are arranged on the air distribution box and used for installing different kinds of pulse valves, at least two communication structures are arranged on the air distribution box, and the communication structures correspond to the pulse valve connectors in a one-to-one mode. Each communication structure is provided with a blowing pipe interface for connecting a blowing pipe, and the communication structures are used for communicating the corresponding pulse valves with the blowing pipes, so that the communication between the pulse valves and the blowing pipes is relatively independent, the pulse valves do not need to be disassembled and assembled on the gas distribution box when different pulse valves are tested, and the test efficiency is improved. Instead, the position of the blowing pipe relative to the gas distribution box is changed to correspond to different blowing pipe interfaces, so that the convenience of replacing and testing different pulse valves is improved.

Description

Technical Field

[0001] The invention relates to the technical field of testing mechanical parts, and in particular to a bag dust collector testing device. Background Art

[0002] As the emission standards of industrial flue gas pollutants become higher and higher, higher requirements are placed on the performance of dust removal equipment. Bag dust collectors are widely used as a mature dust removal equipment. The core component of bag dust collectors is the filter bag. The flue gas is filtered through the filter bag. In order to facilitate the cleaning of the filter bag, the bag dust collector is also equipped with a pulse cleaning system. The pulse cleaning system includes an air source and a blow pipe. The blow pipe has a blow hole facing the bag mouth of each filter bag. An electromagnetic pulse valve is installed on the air inlet end of each blow pipe to achieve high-pressure pulse blowing. In order to meet the emission standards, the dust removal efficiency of the bag dust collector is very high. In order to improve the dust removal efficiency of the bag dust collector, it is necessary to test the pulse cleaning system to verify the optimal parameters.

[0003] A Chinese utility model patent with authorization announcement number CN203432796U discloses a filter bag pulse spray test bench, which includes a spray pipe and an air distribution box connected to the air inlet end of the spray pipe. The air distribution box is provided with a variety of electromagnetic pulse valve interfaces, each electromagnetic pulse valve interface is used to install a different type of electromagnetic pulse valve, the electromagnetic pulse valve is connected to the air inlet end of the spray pipe, and the gas from the air source enters the air distribution box and enters the spray pipe through the pulse valve. The spray hole of the spray pipe faces the filter bag. Pressure sensors are provided on the air distribution box, the spray pipe and the filter bag. The pressure changes during the test are measured by the pressure sensors, and the PLC control box collects and processes the signals of the pressure sensors.

[0004] When the above-mentioned test device is used to test different types of pulse valves, since the air inlet end of the blow pipe is connected to the air distribution box at a fixed position, after testing one pulse valve, it needs to be removed, and then another pulse valve needs to be installed using the corresponding interface to achieve connectivity with the blow pipe. The disassembly and assembly of the pulse valve is relatively cumbersome, affecting the test efficiency. Summary of the invention

[0005] The object of the present invention is to provide a bag filter test device to solve the problem that the current test device needs to disassemble and assemble the pulse valve when testing different pulse valves, which makes the operation inconvenient.

[0006] The technical solution of the bag filter test device of the present invention is:

[0007] A bag dust collector testing device includes an air distribution box, on which are provided at least two pulse valve interfaces for installing different types of pulse valves, and at least two connecting structures, the connecting structures corresponding to the pulse valve interfaces one by one, and each connecting structure having a blowing pipe interface for connecting a blowing pipe, and the connecting structure is used to connect the corresponding pulse valve to the blowing pipe.

[0008] Beneficial effect: The present invention is an improvement on the bag dust collector testing device in the prior art. By arranging connecting structures corresponding to different types of pulse valves on the air distribution box, each connecting structure has a blow pipe interface, so that the connection between each pulse valve and the blow pipe is relatively independent. When testing different types of pulse valves, there is no need to disassemble and assemble the pulse valve on the air distribution box, but the position of the blow pipe relative to the air distribution box can be changed to correspond to different blow pipe interfaces, which is beneficial to improving the convenience of replacing and testing operations of different pulse valves.

[0009] Furthermore, the ports of the blowing pipes are arranged side by side, and at least one of the gas distribution box and the blowing pipes is movably arranged along the direction in which the ports of the blowing pipes are arranged side by side.

[0010] Beneficial effect: The interfaces of the blowing pipes are arranged side by side and the gas distribution box and the blowing pipes can be relatively moved, which facilitates the connection operation between the blowing pipes and different blowing pipe interfaces.

[0011] Furthermore, the test device comprises an air distribution box bracket, which comprises a fixed frame and a movable frame movably arranged on the fixed frame along the parallel direction of the injection pipe interface, and the air distribution box is installed on the movable frame.

[0012] Beneficial effect: The use of a mobile frame in conjunction with a fixed frame facilitates the movement of the gas distribution box, which is beneficial to simplifying the installation structure of the gas distribution box.

[0013] Furthermore, the movable frame is provided with rollers, and the fixed frame is provided with a supporting surface cooperating with the rollers.

[0014] Beneficial effect: the movable frame is supported on the fixed frame by rolling through rollers, so that it is convenient to apply force to push the air distribution box to move, which is labor-saving.

[0015] Furthermore, the interfaces of the blowing pipes are arranged side by side, and the gas distribution box is movably arranged along the side-by-side direction of the blowing pipe interfaces. The test device includes an air source, and the air source and the gas distribution box are connected through a connecting pipe. The connecting pipe, the air source and the gas distribution box can be detachably connected, so that when the gas distribution box is moved to test different pulse valves, connecting pipes of different lengths can be connected accordingly to adapt to the distance between the air source and the gas distribution box.

[0016] Beneficial effect: By replacing different connecting pipes, the distance between the gas source and the gas distribution box can be adapted, ensuring reliable connection between the gas distribution box and the gas source after the gas distribution box is moved, thereby facilitating the movable setting of the gas distribution box.

[0017] Furthermore, the connecting structure includes a connecting pipe, one end of which is provided with a blowing pipe interface and the other end is connected to the bottom surface of the gas distribution box, and the pulse valve interface is arranged on the top surface of the gas distribution box.

[0018] Beneficial effect: the pulse valve interface is arranged on the top surface of the gas distribution box, and the connecting pipe is arranged on the bottom surface of the gas distribution box, which is convenient for the installation of the pulse valve.

[0019] Furthermore, the test device comprises a filter bag and a blowing pipe, and the distance between the bag opening of the filter bag and the blowing hole of the blowing pipe is adjustable.

[0020] Beneficial effect: By changing the distance between the bag opening of the filter bag and the blowing hole of the blowing pipe, the influence of the change of the blowing distance parameter on the test results can be tested.

[0021] Furthermore, the test device includes a blow pipe bracket for supporting the blow pipe, the blow pipe bracket is provided with a connecting assembly, the connecting assembly includes a fixed seat fixed to the blow pipe bracket and a movable seat movably arranged on the fixed seat, and the movable seat is fixed to the filter bag.

[0022] Beneficial effect: By adjusting the position of the movable seat on the fixed seat, the fixed position of the filter bag can be changed, thereby realizing the adjustment of the distance between the filter bag and the blowing pipe. The structure is simple and easy to use.

[0023] Furthermore, the blowing pipe is a combined pipe, comprising at least two detachably connected pipe sections.

[0024] Beneficial effect: The length of the blowing pipe can be changed through the detachably connected pipe sections. The blowing pipes of different lengths have different numbers of blowing holes, which can adapt to the influence of the change in the number of blowing holes on the test results.

[0025] Furthermore, each pipe section has a different length.

[0026] Beneficial effect: Different pipe sections can be used in combination or individually, which increases the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the bag dust collector test device of the present invention;

[0028] Figure 2 for Figure 1 Schematic diagram of the installation of the air distribution box and the air distribution box bracket;

[0029] Figure 3 for Figure 1 A schematic diagram of the structure of the gas distribution box;

[0030] Figure 4 It is a schematic diagram of the connection structure between the gas storage tank and the gas distribution box of the bag filter test device of the present invention;

[0031] Figure 5 for Figure 1 A schematic diagram of the installation position of the pressure sensor at the bottom of the filter bag;

[0032] Figure 6 for Figure 1 Schematic diagram of the installation position of the pressure sensor on the gas distribution box;

[0033] Figure 7 for Figure 1 Schematic diagram of the installation position of the pressure sensor on the blowing pipe.

[0034] In the figure: 1. gas storage tank; 2. gas storage tank bracket; 3. gas distribution box; 4. pulse valve; 5. fixed bracket; 6. movable bracket; 7. injection pipe interface; 8. injection pipe; 9. injection pipe bracket; 10. filter bag; 11. movable seat; 12. fixed seat; 13. filter bag bracket; 14. roller; 15. reinforcement plate; 16. connecting pipe; 17. pressure gauge; 18. connecting pipe; 19. connecting pipe bracket; 20. first pressure sensor; 21. second pressure sensor; 22. third pressure sensor. DETAILED DESCRIPTION

[0035] The bag filter test device of the present invention includes an air distribution box, and the air distribution box is provided with at least two pulse valve interfaces for installing different types of pulse valves. The air distribution box is provided with at least two connecting structures, and the connecting structures correspond to the pulse valve interfaces one by one. Each connecting structure has a blowing pipe interface for connecting a blowing pipe, and the connecting structure is used to connect the corresponding pulse valve to the blowing pipe. By arranging connecting structures corresponding to different types of pulse valves on the air distribution box, each connecting structure has a blowing pipe interface, so that the connection between each pulse valve and the blowing pipe is relatively independent. When testing different types of pulse valves, it is not necessary to disassemble and assemble the pulse valve on the air distribution box, but it is sufficient to change the position of the blowing pipe relative to the air distribution box to correspond to different blowing pipe interfaces, which is conducive to improving the convenience of replacing and testing different pulse valves.

[0036] Example 1 of the bag filter test device of the present invention:

[0037] like Figure 1 , Figure 5 , Figure 6 , Figure 7As shown, the bag filter test device includes an air storage tank 1, an air distribution box 3, a pulse valve 4, a blow pipe 8, and a filter bag 10. The air source includes an air storage tank 1 to deliver compressed air to the air distribution box 3. The air distribution box 3 is provided with a pulse valve interface, and the pulse valve interface is used to install the pulse valve 4. The air distribution box 3 is provided with a connecting structure that connects the pulse valve 4 with the blow pipe 8, so that the gas in the air distribution box 3 enters the blow pipe 8 through the pulse valve 4 and the connecting structure. The blow pipe 8 is provided with a blow hole, and the gas is ejected from the blow hole and enters the corresponding filter bag 10. The filter bag 10 is provided with a first pressure sensor 20, the air distribution box 3 is provided with a pressure gauge 17 and a second pressure sensor 21, and the blow pipe 8 is provided with a third pressure sensor 22, so as to measure the pressure of the corresponding parts during the pulse blowing test.

[0038] The gas distribution box 3 is provided with multiple pulse valve interfaces, and different pulse valve interfaces are used to install different types of pulse valves 4. There are also multiple connecting structures, and the connecting structures correspond to the pulse valve interfaces one by one. Each connecting structure has a blow pipe interface 7 for connecting the blow pipe 8, that is, different types of pulse valves 4 have their own corresponding blow pipe interface 7, so that the connection between each pulse valve 4 and the blow pipe 8 is relatively independent. When testing different types of pulse valves 4, there is no need to disassemble and assemble the pulse valve 4 on the gas distribution box 3, but only to change the position of the blow pipe 8 relative to the gas distribution box 3 to correspond to different blow pipe interfaces 7, which is conducive to improving the convenience of replacement and testing operations of different pulse valves 4.

[0039] Each blowing pipe interface 7 is arranged side by side in the front-to-back direction, and the air distribution box 3 is movably arranged in the front-to-back direction. The connection operation of the blowing pipe 8 with different blowing pipe interfaces 7 is facilitated by moving the air distribution box 3. The bag dust collector test device includes an air distribution box bracket, and the air distribution box bracket includes a fixed frame 5 and a mobile frame 6 movably arranged on the fixed frame 5 in the front-to-back direction. The air distribution box 3 is installed on the mobile frame 6. The mobile frame 6 is a rectangular frame structure. Rollers 14 are respectively installed at the four corners of the mobile frame 6. The upper part of the fixed frame 5 has two support beams arranged at intervals on the left and right. The support beam extends in the front-to-back direction. The upper surface of the support beam constitutes a support surface for supporting the roller 14. The roller 14 of the mobile frame 6 can roll on the support beam, so that the mobile frame 6 can move forward and backward. The use of the mobile frame 6 in conjunction with the fixed frame 5 facilitates the movement of the gas distribution box 3, which is conducive to simplifying the installation structure of the gas distribution box 3 and facilitating the manufacture of the gas distribution box 3. The mobile frame 6 is supported on the fixed frame 5 by rollers 14, which is convenient for applying force to push the gas distribution box 3 to move, which is labor-saving. Moreover, the gas distribution box 3 is set to be movable, which can reduce the footprint of the test device. The blowing pipe 8 is fixed in position after installation. By moving the gas distribution box 3 forward and backward, different blowing pipe interfaces 7 can be connected to the blowing pipe 8 accordingly to meet the test of different pulse valves 4.

[0040] A second pressure sensor 21 is provided on a side of the gas distribution box 3 away from the gas storage tank 1. A third pressure sensor 22 is provided on the end face of the injection pipe 8 away from the gas distribution box 3, and the third pressure sensor 22 is arranged horizontally. The first pressure sensors 20 are provided at the bag opening, the middle and the bottom of the filter bag 10, respectively, and the pressure sensors are connected to the PLC control box through cables.

[0041] In other implementations, the air distribution box may be fixedly arranged on the air distribution box bracket, and the blowing pipe may be moved forward and backward.

[0042] In other implementations, the movable frame may also be slidably disposed on the fixed frame.

[0043] In other implementations, the air distribution box may also be directly slidably supported on the fixing frame.

[0044] In other embodiments, the blow pipe interfaces can also be divided into two rows, with the left blow pipe interface facing left and the right blow pipe interface facing right. When testing different pulse valves, the blow pipe can be removed from the left blow pipe interface and then installed on the right blow pipe interface.

[0045] Example 2 of the bag filter test device of the present invention:

[0046] like Figure 1-7 As shown, the bag filter test device includes an air storage tank 1, an air distribution box 3, a pulse valve 4, a blow pipe 8, and a filter bag 10. The air source includes an air storage tank 1 to deliver compressed air to the air distribution box 3. The air distribution box 3 is provided with a pulse valve interface, and the pulse valve interface is used to install the pulse valve 4. The air distribution box 3 is provided with a connecting structure that connects the pulse valve 4 with the blow pipe 8, so that the gas in the air distribution box 3 enters the blow pipe 8 through the pulse valve 4 and the connecting structure. The blow pipe 8 is provided with a blow hole, and the gas is ejected from the blow hole and enters the corresponding filter bag 10. The filter bag 10 is provided with a first pressure sensor 20, the air distribution box 3 is provided with a pressure gauge 17 and a second pressure sensor 21, and the blow pipe 8 is provided with a third pressure sensor 22, so as to measure the pressure of the corresponding parts during the pulse blowing test.

[0047] The gas distribution box 3 is provided with multiple pulse valve interfaces, and different pulse valve interfaces are used to install different types of pulse valves 4. There are also multiple connecting structures, and the connecting structures correspond to the pulse valve interfaces one by one. Each connecting structure has a blow pipe interface 7 for connecting the blow pipe 8, that is, different types of pulse valves 4 have their own corresponding blow pipe interface 7, so that the connection between each pulse valve 4 and the blow pipe 8 is relatively independent. When testing different types of pulse valves 4, there is no need to disassemble and assemble the pulse valve 4 on the gas distribution box 3, but only to change the position of the blow pipe 8 relative to the gas distribution box 3 to correspond to different blow pipe interfaces 7, which is conducive to improving the convenience of replacement and testing operations of different pulse valves 4.

[0048] The blowing bag dust collector test device includes an air distribution box bracket. The installation structure of the air distribution box 3 and the air distribution box bracket can refer to Example 1.

[0049] The bag filter test device also includes a gas tank bracket 2, on which the gas tank 1 is mounted. The gas tank bracket 2 and the fixing frame 5 are both supported on the ground, and the position of the gas tank 1 is fixed. When testing different pulse valves 4, it is necessary to move the gas distribution box 3. After the gas distribution box 3 moves back and forth, the distance between the gas distribution box 3 and the gas tank 1 will change. To ensure that the gas distribution box 3 and the gas tank 1 are ventilated, such as Figure 4 As shown, a connecting pipe 18 is arranged between the gas storage tank 1 and the gas distribution box 3. There are multiple connecting pipes 18, and each connecting pipe 18 has a different length to adapt to the different spacings between the gas source and the gas distribution box 3. The gas storage tank 1 and the gas distribution box 3 are connected through the connecting pipe 18 and maintain a rigid connection. The connecting pipe 18 and the gas storage tank 1 and the gas distribution box 3 can be detachably connected to facilitate the replacement of connecting pipes 18 of different lengths. In order to facilitate the connection of the connecting pipe 18 between the gas distribution box 3 and the gas storage tank 1, the bag dust collector test device is also equipped with a connecting pipe bracket 19, which is supported on the fixing frame 5. When replacing the connecting pipe 18, the connecting pipe 18 can be supported on the connecting pipe bracket 19 for connection operation.

[0050] In other implementations, the gas distribution box and the gas storage tank may be moved together, so that there is no need to set up a connecting pipe.

[0051] Example 3 of the bag filter test device of the present invention:

[0052] like Figure 1-7 As shown, the bag filter test device includes an air storage tank 1, an air distribution box 3, a pulse valve 4, a blow pipe 8, and a filter bag 10. The air source includes an air storage tank 1 to deliver compressed air to the air distribution box 3. The air distribution box 3 is provided with a pulse valve interface, and the pulse valve interface is used to install the pulse valve 4. The air distribution box 3 is provided with a connecting structure that connects the pulse valve 4 with the blow pipe 8, so that the gas in the air distribution box 3 enters the blow pipe 8 through the pulse valve 4 and the connecting structure. The blow pipe 8 is provided with a blow hole, and the gas is ejected from the blow hole and enters the corresponding filter bag 10. The filter bag 10 is provided with a first pressure sensor 20, the air distribution box 3 is provided with a pressure gauge 17 and a second pressure sensor 21, and the blow pipe 8 is provided with a third pressure sensor 22, so as to measure the pressure of the corresponding parts during the pulse blowing test.

[0053] The gas distribution box 3 is provided with multiple pulse valve interfaces, and different pulse valve interfaces are used to install different types of pulse valves 4. There are also multiple connecting structures, and the connecting structures correspond to the pulse valve interfaces one by one. Each connecting structure has a blow pipe interface 7 for connecting the blow pipe 8, that is, different types of pulse valves 4 have their own corresponding blow pipe interface 7, so that the connection between each pulse valve 4 and the blow pipe 8 is relatively independent. When testing different types of pulse valves 4, there is no need to disassemble and assemble the pulse valve 4 on the gas distribution box 3, but only to change the position of the blow pipe 8 relative to the gas distribution box 3 to correspond to different blow pipe interfaces 7, which is conducive to improving the convenience of replacement and testing operations of different pulse valves 4.

[0054] The blowing bag dust collector test device includes an air distribution box bracket. The installation structure of the air distribution box 3 and the air distribution box bracket can refer to Example 1.

[0055] The connecting structure includes a connecting pipe 16, which is a curved pipe. One end of the connecting pipe 16 is provided with a blow pipe interface 7, and the other end is connected to the bottom surface of the gas distribution box 3. The pulse valve interface is arranged on the top surface of the gas distribution box 3, and the connecting pipe 16 is arranged on the bottom surface of the gas distribution box 3, which is convenient for the installation of the pulse valve 4. The bottom surface of the gas distribution box 3 is the side facing downward, and the top surface is the side facing upward. The curved pipe includes a vertical part and a horizontal part. The vertical part is connected to the bottom surface of the gas distribution box 3. The blow pipe interface 7 is arranged on the horizontal part. The space inside the gas distribution box bracket can avoid the curved pipe. The curved pipe at the lower part of the gas distribution box 3 is used to reduce the height of the blow pipe interface 7, so as to facilitate the connection with the blow pipe 8.

[0056] The test device is equipped with a blow pipe bracket 9, the blow pipe bracket 9 is supported on the ground, the blow pipe 8 is supported on the blow pipe bracket 9, the blow pipe bracket 9 is located on one side of the left-right direction of the fixed frame 5 of the air distribution box bracket, the height of the blow pipe bracket 9 is much lower than the height of the fixed frame 5, the height of the blow pipe 8 is lower than the height of the air distribution box 3, the blow pipe 8 extends in the left-right direction and is located on one side of the air distribution box 3, the height of the blow pipe interface 7 is consistent with the height of the blow pipe 8, which is convenient for connection operation.

[0057] In order to ensure the stability of each bent pipe, the test device is also equipped with a reinforcing plate 15, which is a bending plate. Each bent pipe is connected to the reinforcing plate 15. The reinforcing plate 15 is used to connect the bent pipes as a whole, thereby improving stability and ensuring reliable use.

[0058] In other embodiments, the pulse valve interface and the blow pipe interface may be respectively arranged on the left and right side surfaces of the gas distribution box, and the connecting structure may no longer be provided with a connecting pipe, but the blow pipe interface may be directly formed by a joint installed on the side of the gas distribution box.

[0059] Example 4 of the bag filter test device of the present invention:

[0060] like Figure 1-7As shown, the bag filter test device includes an air storage tank 1, an air distribution box 3, a pulse valve 4, a blow pipe 8, and a filter bag 10. The air source includes an air storage tank 1 to deliver compressed air to the air distribution box 3. The air distribution box 3 is provided with a pulse valve interface, and the pulse valve interface is used to install the pulse valve 4. The air distribution box 3 is provided with a connecting structure that connects the pulse valve 4 with the blow pipe 8, so that the gas in the air distribution box 3 enters the blow pipe 8 through the pulse valve 4 and the connecting structure. The blow pipe 8 is provided with a blow hole, and the gas is ejected from the blow hole and enters the corresponding filter bag 10. The filter bag 10 is provided with a first pressure sensor 20, the air distribution box 3 is provided with a pressure gauge 17 and a second pressure sensor 21, and the blow pipe 8 is provided with a third pressure sensor 22, so as to measure the pressure of the corresponding parts during the pulse blowing test.

[0061] The gas distribution box 3 is provided with multiple pulse valve interfaces, and different pulse valve interfaces are used to install different types of pulse valves 4. There are also multiple connecting structures, and the connecting structures correspond to the pulse valve interfaces one by one. Each connecting structure has a blow pipe interface 7 for connecting the blow pipe 8, that is, different types of pulse valves 4 have their own corresponding blow pipe interface 7, so that the connection between each pulse valve 4 and the blow pipe 8 is relatively independent. When testing different types of pulse valves 4, there is no need to disassemble and assemble the pulse valve 4 on the gas distribution box 3, but only to change the position of the blow pipe 8 relative to the gas distribution box 3 to correspond to different blow pipe interfaces 7, which is conducive to improving the convenience of replacement and testing operations of different pulse valves 4.

[0062] The blowing bag dust collector test device includes an air distribution box bracket. The installation structure of the air distribution box 3 and the air distribution box bracket can refer to Example 1.

[0063] The distance between the bag opening of the filter bag 10 and the blowing hole of the blowing pipe 8 is adjustable. By changing the distance between the bag opening of the filter bag 10 and the blowing hole of the blowing pipe 8, the influence of the change of the blowing distance parameter on the test results can be tested.

[0064] The test device is equipped with a blow pipe bracket 9, the blow pipe bracket 9 is supported on the ground, the blow pipe 8 is supported on the blow pipe bracket 9, the blow pipe bracket 9 is located on one side of the left-right direction of the fixed frame 5 of the air distribution box bracket, the height of the blow pipe bracket 9 is much lower than the height of the fixed frame 5, the height of the blow pipe 8 is lower than the height of the air distribution box 3, the blow pipe 8 extends in the left-right direction and is located on one side of the air distribution box 3, the height of the blow pipe interface 7 is consistent with the height of the blow pipe 8, which is convenient for connection operation.

[0065] The test device is equipped with a filter bag support 13, two filter bag supports 13 are arranged at intervals in front and back, the filter bag support 13 includes a main body extending left and right and a support provided on the main body, the support is provided with a support groove, the support groove is used to support and limit the filter bag 10. The length direction of the filter bag 10 is the front and back direction, the bag mouth of the filter bag 10 is connected to the injection pipe support 9 through a connecting component, the connecting component includes a fixed seat 12 fixed to the injection pipe support 9 and a movable seat 11 movably arranged on the fixed seat 12, and the movable seat 11 is fixed to the filter bag 10. The fixed seat 12 is a flat plate with a plurality of connection holes arranged at intervals in front and back. The movable seat 11 is an L-shaped plate including a horizontal section and a vertical section. The horizontal section is provided with a fixing hole. The fixing hole corresponds to the connection hole so that the movable seat 11 and the fixed seat 12 can be fixedly connected by passing bolts. The position of the movable seat 11 relative to the fixed seat 12 can be changed by connecting the bolts in the fixing holes to different connection holes, thereby adjusting the position of the movable seat 11 on the fixed seat 12 to change the fixed position of the filter bag 10, thereby adjusting the distance of the filter bag 10 relative to the injection pipe 8. The structure is simple and easy to use.

[0066] In other embodiments, the distance between the bag opening of the filter bag and the blowing hole of the blowing pipe may be fixed.

[0067] In other implementations, the support of the filter bag may also be movably mounted on the main body of the filter bag support in the front and rear directions to change the distance between the filter bag and the blowing pipe.

[0068] Example 5 of the bag filter test device of the present invention:

[0069] like Figure 1-7 As shown, the bag filter test device includes an air storage tank 1, an air distribution box 3, a pulse valve 4, a blow pipe 8, and a filter bag 10. The air source includes an air storage tank 1 to deliver compressed air to the air distribution box 3. The air distribution box 3 is provided with a pulse valve interface, and the pulse valve interface is used to install the pulse valve 4. The air distribution box 3 is provided with a connecting structure that connects the pulse valve 4 with the blow pipe 8, so that the gas in the air distribution box 3 enters the blow pipe 8 through the pulse valve 4 and the connecting structure. The blow pipe 8 is provided with a blow hole, and the gas is ejected from the blow hole and enters the corresponding filter bag 10. The filter bag 10 is provided with a first pressure sensor 20, the air distribution box 3 is provided with a pressure gauge 17 and a second pressure sensor 21, and the blow pipe 8 is provided with a third pressure sensor 22, so as to measure the pressure of the corresponding parts during the pulse blowing test.

[0070] The gas distribution box 3 is provided with multiple pulse valve interfaces, and different pulse valve interfaces are used to install different types of pulse valves 4. There are also multiple connecting structures, and the connecting structures correspond to the pulse valve interfaces one by one. Each connecting structure has a blow pipe interface 7 for connecting the blow pipe 8, that is, different types of pulse valves 4 have their own corresponding blow pipe interface 7, so that the connection between each pulse valve 4 and the blow pipe 8 is relatively independent. When testing different types of pulse valves 4, there is no need to disassemble and assemble the pulse valve 4 on the gas distribution box 3, but only to change the position of the blow pipe 8 relative to the gas distribution box 3 to correspond to different blow pipe interfaces 7, which is conducive to improving the convenience of replacement and testing operations of different pulse valves 4.

[0071] The blowing bag dust collector test device includes an air distribution box bracket. The installation structure of the air distribution box 3 and the air distribution box bracket can refer to Example 1.

[0072] The blow pipe 8 is a combined pipe, which includes two detachably connected pipe sections. Each pipe section has a different length and can be used in combination or individually. The length of the blow pipe 8 can be changed by the detachably connected pipe sections. The blow pipes 8 of different lengths have different numbers of blow holes, which can adapt to the impact of changes in the number of blow holes on the test results.

[0073] In other implementations, the blowing pipe is a whole pipe, and multiple blowing pipes of different lengths are configured to meet the test requirements of varying the number of blowing holes.

[0074] In other embodiments, the lengths of the blowing tubes may be the same.

[0075] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bag filter test device, comprising an air distribution box, on which at least two pulse valve interfaces are provided for installing different types of pulse valves, characterized in that: At least two connecting structures are provided on the gas distribution box, and the connecting structures correspond to the pulse valve interfaces one by one. Each connecting structure has a blowing pipe interface for connecting the blowing pipe, and the connecting structure is used to connect the corresponding pulse valve with the blowing pipe.

2. The bag filter test device according to claim 1, characterized in that: The interfaces of the blowing pipes are arranged side by side, and at least one of the gas distribution box and the blowing pipe is movably arranged along the side-by-side direction of the interfaces of the blowing pipes.

3. The bag filter test device according to claim 2, characterized in that: The test device comprises an air distribution box bracket, which comprises a fixed frame and a movable frame movably arranged on the fixed frame along the parallel direction of the injection pipe interface, and the air distribution box is installed on the movable frame.

4. The bag filter test device according to claim 3, characterized in that: The movable frame is provided with rollers, and the fixed frame is provided with a supporting surface matched with the rollers.

5. The bag filter test device according to claim 2, 3 or 4, characterized in that: The interfaces of the blowing pipes are arranged side by side, and the gas distribution box is movably arranged along the side-by-side direction of the blowing pipe interfaces. The test device includes an air source, and the air source and the gas distribution box are connected through a connecting pipe. The connecting pipe, the air source and the gas distribution box can be detachably connected, so that when the gas distribution box is moved to test different pulse valves, connecting pipes of different lengths can be connected accordingly to adapt to the distance between the air source and the gas distribution box.

6. The bag filter test device according to claim 1, 2, 3 or 4, characterized in that: The connecting structure comprises a connecting pipe, one end of which is provided with a blowing pipe interface and the other end is connected with the bottom surface of the gas distribution box, and the pulse valve interface is arranged on the top surface of the gas distribution box.

7. The bag filter test device according to claim 1, 2, 3 or 4, characterized in that: The test device comprises a filter bag and a blowing pipe, and the distance between the bag opening of the filter bag and the blowing hole of the blowing pipe can be adjusted.

8. The bag filter test device according to claim 7, characterized in that: The test device comprises a blow pipe bracket for supporting the blow pipe, the blow pipe bracket is provided with a connecting assembly, the connecting assembly comprises a fixed seat fixed to the blow pipe bracket and a movable seat movably arranged on the fixed seat, and the movable seat is fixed to the filter bag.

9. The bag filter test device according to claim 1, 2, 3 or 4, characterized in that: The blowing pipe is a combined pipe, comprising at least two detachably connected pipe sections.

10. The bag filter test device according to claim 9, characterized in that: The length of each pipe section is different.

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