CN217359521U - Filter resistance detection device - Google Patents
Filter resistance detection device Download PDFInfo
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- CN217359521U CN217359521U CN202220796989.1U CN202220796989U CN217359521U CN 217359521 U CN217359521 U CN 217359521U CN 202220796989 U CN202220796989 U CN 202220796989U CN 217359521 U CN217359521 U CN 217359521U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The utility model discloses a resistance detection device for a filtering piece, which comprises a mounting plate, a detection barrel and a pressure detection piece, wherein the mounting plate is provided with a mounting port for mounting the filtering piece; the mounting plate divides a detection cavity in the detection cylinder into a first detection space and a second detection space, and the first detection space and the second detection space are communicated through a filter piece arranged at the mounting opening; the pressure detection member is used for detecting a pressure difference between the first detection space and the second detection space. Will filter and install in the installing port and make the filter house who filters set up in first detection space, to first detection space letting in air, the air gets into the second detection space via the filter house who filters, uses pressure detection spare to detect the pressure differential between first detection space and the second detection space, can calculate the size that obtains the first resistance of filtering according to the pressure differential to this detects the first resistance that obtains filtering.
Description
Technical Field
The utility model relates to a filter and detect technical field, especially relate to a filter resistance detection device.
Background
The filter elements such as filter cartridges, filter plates and the like are core elements for dust removal and filtration of dust removal equipment and are main elements influencing the running resistance and the overall filtration effect of the dust remover. The filtering effect of the filtering element is closely related to the dust removal resistance of the filtering element, when the dust is not removed in time by the filtering element or the initial resistance of the filtering element is higher, the dust removal resistance of the filtering element is higher, so that the filtering element cannot achieve the ideal dust removal effect, the energy consumption of a fan is increased, and the use cost of dust removal equipment is increased; on the contrary, when the initial resistance of the filter element is lower, the dust removal resistance of the filter element is smaller, the dust removal effect of the filter element is good, the operation resistance of the dust removal equipment is low, and the dust removal energy consumption and the operation cost are lower.
Therefore, to ensure a better dust cleaning effect and a lower operating cost of the dust removing device, it is necessary to ensure that the filter element has a smaller dust removal resistance, and therefore, it is necessary to detect the initial resistance of the filter element when the filter element leaves the factory.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a filter resistance detection device to detect the initial resistance of the filter, so as to ensure the factory quality of the filter.
The application provides a filter resistance detection device, includes:
the mounting plate is provided with a mounting hole for mounting a filtering piece;
the detection device comprises a detection barrel, a mounting plate, a gas inlet, a gas outlet and a gas outlet, wherein the detection barrel is provided with a detection cavity, the mounting plate is arranged in the detection cavity and divides the detection cavity into a first detection space and a second detection space, the first detection space is communicated with the second detection space through a filter element arranged at a mounting port, and the detection barrel is also provided with a gas inlet communicated with the first detection space and a gas outlet communicated with the second detection space; and
a pressure detecting member for detecting a pressure difference between the first detection space and the second detection space.
The filter piece resistance detection device is used for detecting the initial resistance of a filter piece, when the device is used, the filter piece is arranged at the mounting port, the filter part of the filter piece is arranged in the first detection space, air is introduced into the first detection space through the air inlet, and the air enters the second detection space through the filter part of the filter piece and then leaves the detection cylinder from the air outlet; during the movement of air in the detection cylinder, the pressure detection member is used to detect the pressure difference between the first detection space and the second detection space. The in-process that the air moved from first detection space to second detection space, because the influence of the first resistance of the filter house of filtering piece, air pressure in the second detection space and the air pressure in the first detection space are not equal to each other, the first resistance of the filter house when filtering piece is big more, the pressure differential between first detection space and the second detection space is big more, detect the pressure differential between the space through detecting first detection space and second, can correspond the size that obtains the first resistance of the filter house of filtering piece, with this evaluation filter the first resistance of piece, and then can guarantee that the first resistance of the filter piece of leaving the factory is in the design range, thereby guarantee that dust collecting equipment has lower running resistance when using this filter piece, dust removal energy consumption and running cost.
The technical solution of the present application is further described below:
in one embodiment, the mounting plate is removably mounted within the cartridge.
In one embodiment, the filter resistance detection device further comprises a connecting piece, a mounting part is formed on the side wall of the detection cylinder located in the detection cavity, and the mounting plate is detachably connected to the mounting part through the connecting piece.
In one embodiment, the filter resistance detection device further includes a blower, and an air suction port of the blower communicates with the air outlet.
In one embodiment, filter resistance detection device still includes out tuber pipe and exhaust pipe, go out the one end of tuber pipe with the gas outlet intercommunication, go out the other end of tuber pipe with the suction opening of fan communicates, the air intake of exhaust pipe with the air outlet of fan communicates.
In one embodiment, the fan is a variable frequency fan.
In one embodiment, the cross-sectional size of the mounting opening is adapted to the cross-sectional size of the portion of the mounting opening where the filter element is inserted, and the cross-sectional shape of the mounting opening is adapted to the cross-sectional shape of the portion of the mounting opening where the filter element is inserted.
In one embodiment, the filter resistance detection device further includes a sealing member for sealing between the hole wall of the mounting opening and the filter member.
In one embodiment, the filter resistance detection device further comprises a controller communicatively coupled to the pressure detection member.
In one embodiment, the pressure detection unit includes a first pressure sensor for detecting a first pressure value in the first detection space and a second pressure sensor for detecting a second pressure value in the second detection space.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a filter resistance detection device according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating an internal structure of a filter resistance detection device according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a filter resistance detection device according to an embodiment of the present invention;
FIG. 4 is a schematic view of a mounting plate of one embodiment of the present invention configured to receive a larger sized cylindrical filter cartridge;
FIG. 5 is a schematic view of a mounting plate of one embodiment of the present invention configured to receive a smaller size cylindrical filter cartridge;
fig. 6 is a schematic view of a flat square frame filter cartridge mounted to a mounting plate according to an embodiment of the present invention.
Description of reference numerals:
10. a filter resistance detection device; 100. mounting a plate; 110. an installation port; 200. a detection cylinder; 210. a detection chamber; 211. a first detection space; 212. a second detection space; 220. an air inlet; 230. an air outlet; 240. an installation part; 300. a pressure detecting member; 400. a connecting member; 500. a seal member; 600. a fan; 700. an air outlet pipe; 800. an exhaust duct; 900. a controller; 20. a filter member; 21. a filtering part; 22. a hollow portion.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
A hollow portion 22 is formed inside a common filter element 20 such as a filter cartridge or a filter plate, a filter portion 21 for communicating the hollow portion 22 with the outside is provided on a circumferential side surface of the filter element 20, and dust gas enters the hollow portion 22 from the outside through the filter portion 21, or when the dust gas enters the outside from the hollow portion 22 through the filter portion 21, the dust gas is filtered and dedusted by the filter portion 21 during the movement process to become clean gas. The filtering effect of the filtering element 20 is closely related to the dust removal resistance of the filtering part 21, and when the initial resistance of the filtering part 21 is high, the dust removal resistance of the filtering element 20 is high, so that the filtering element 20 cannot achieve an ideal dust removal effect, the energy consumption of the fan 600 can be increased, and the use cost of dust removal equipment can be increased; on the contrary, when the initial resistance of the filtering portion 21 is low, the dust removal resistance of the filtering member 20 is small, the dust cleaning effect of the filtering member 20 is good, the operation resistance of the dust removing device is low, and the dust removal energy consumption and the operation cost are low, so that it is necessary to detect the initial resistance of the filtering member 20 when the filtering member 20 leaves the factory. In view of this, the present application provides a filter resistance detection device 10 to detect the initial resistance of the filter portion 21 of the filter 20, and to ensure the factory quality of the filter 20.
Referring to fig. 1 to 3, an embodiment of a filter resistance detection device 10 includes: the pressure detection device comprises a mounting plate 100, a detection cylinder 200 and a pressure detection piece 300, wherein the mounting plate 100 is provided with a mounting opening 110 for mounting a filter piece 20; the detection cartridge 200 is provided with a detection cavity 210, the mounting plate 100 is arranged in the detection cavity 210 and divides the detection cavity 210 into a first detection space 211 and a second detection space 212, the first detection space 211 is communicated with the second detection space 212 through the filter element 20 arranged at the mounting port 110, and the detection cartridge 200 is further provided with an air inlet 220 communicated with the first detection space 211 and an air outlet 230 communicated with the second detection space 212; the pressure detecting member 300 is used to detect a pressure difference between the first and second detecting spaces 211 and 212.
Specifically, the detection cartridge 200 may be a metal cartridge or a synthetic material cartridge.
The filter resistance detection device 10 is used for detecting the initial resistance of the filter element 20, and when in use, the filter element 20 is mounted in the mounting opening 110, the filter part 21 of the filter element 20 is arranged in the first detection space 211, air is introduced into the first detection space 211 through the air inlet 220, and enters the second detection space 212 through the filter part 21 of the filter element 20, and then leaves the detection cartridge 200 through the air outlet 230; during the movement of air in the detection cylinder 200, a pressure difference between the first detection space 211 and the second detection space 212 is detected using the pressure detection member 300. In the process of moving the air from the first detection space 211 to the second detection space 212, due to the influence of the initial resistance of the filter part 21 of the filter element 20, the air pressure in the second detection space 212 is not equal to the air pressure in the first detection space 211, when the initial resistance of the filter part 21 of the filter element 20 is larger, the pressure difference between the first detection space 211 and the second detection space 212 is larger, and by detecting the pressure difference between the first detection space 211 and the second detection space 212, the initial resistance of the filter part 21 of the filter element 20 can be obtained correspondingly, so as to evaluate the initial resistance of the filter element 20, and further ensure that the initial resistance of the filter element 20 leaving the factory is within the design range, thereby ensuring that the dust removal device has lower operation resistance, dust removal energy consumption and operation cost when using the filter element 20.
It can be understood that, referring to fig. 2, the mounting opening 110 is a mounting through hole penetrating the first detection space 211 and the second detection space 212.
The first detection space 211 and the second detection space 212 are communicated through the filter member 20 installed in the installation opening 110, that is, the air in the first detection space 211 can be discharged into the second detection space 212 after being filtered by the filter portion 21 of the filter member 20, and the filter portion 21 of the filter member 20 can be a filter net or other types of filter elements.
In some embodiments, the pressure detection member 300 includes a first pressure sensor (not shown) for detecting a first pressure value in the first detection space 211 and a second pressure sensor (not shown) for detecting a second pressure value in the second detection space 212. Thus, the first pressure sensor measures a first pressure value in the first detection space 211, the second pressure sensor measures a second pressure value in the second detection space 212, and the pressure difference between the first detection space 211 and the second detection space 212 can be obtained by analyzing and comparing the first pressure value and the second pressure value.
Alternatively, the pressure detecting member 300 is a differential pressure transmitter or a differential pressure sensor.
In some embodiments, referring to FIG. 2, the mounting plate 100 is detachably mounted in the testing cartridge 200. Thus, when the filter element 20 needs to be installed in the filter element resistance detection device 10 for initial resistance detection, the installation plate 100 can be detached from the detection cylinder 200, the filter element 20 is then installed in the installation plate 100, and the installation plate 100 provided with the filter element 20 is installed in the detection cylinder 200, so that the installation of the filter element 20 is simple and convenient, and the filter element 20 is not easily damaged.
In some embodiments, referring to fig. 2, the filter resistance testing device 10 further includes a connector 400, a mounting portion 240 is formed on a side wall of the testing cartridge 200 located in the testing chamber 210, and the mounting plate 100 is detachably connected to the mounting portion 240 through the connector 400. Since the connector 400 is detachable, the mounting plate 100 is detachably mounted in the test cartridge 200.
Alternatively, referring to fig. 2, the mounting portion 240 in the detection cylinder 200 is a boss disposed along the circumference of the detection cylinder 200, the boss is provided with a first mounting hole (not shown), the mounting plate 100 is provided with a second mounting hole (not shown) matching with the first mounting hole, the connecting member 400 is a bolt, a screw or other detachable connecting member, and the connecting member 400 extends into the first mounting hole and the second mounting hole to detachably connect the mounting plate 100 to the mounting portion 240.
Optionally, referring to fig. 4 to 6, at least two first mounting holes are provided, all the first mounting holes are arranged at intervals along the circumferential direction of the boss, at least two second mounting holes are provided, the second mounting holes correspond to the first mounting holes one to one, at least two connecting members 400 are provided, the connecting members 400 correspond to the first mounting holes one to one, and one connecting member 400 connects the mounting plate 100 to the mounting portion 240 by extending into one first mounting hole and one second mounting hole, so that the mounting plate 100 and the detection cylinder 200 are connected by at least two connecting members 400, and the stability of the mounting plate 100 mounted to the detection cylinder 200 can be improved.
In some embodiments, referring to fig. 4-6, the cross-sectional size of the mounting opening 110 is adapted to the cross-sectional size of the portion of the filter element 20 inserted into the mounting opening 110, and the cross-sectional shape of the mounting opening 110 is adapted to the cross-sectional shape of the portion of the filter element 20 inserted into the mounting opening 110. Specifically, in some embodiments, the cross-section of the mounting opening 110 refers to a cross-section perpendicular to the thickness direction (direction t shown in fig. 2) of the mounting plate 100. The filter element 20 includes filter cartridges, filter plates, or filter elements of other shapes, wherein the filter elements 20 of different shapes have different sizes and types, in order to adapt to the filter elements 20 of different types and different shapes, the cross section of the mounting opening 110 is configured to be adapted to the cross section of the portion where the filter element 20 is inserted into the mounting opening 110, and the cross section of the mounting opening 110 is adapted to the cross section of the portion where the filter element 20 is inserted into the mounting opening 110, so as to ensure the adaptability of the filter element 20 and the mounting opening 110, and enable the filter elements 20 of different types of filter cartridges, filter plates, and the like to detect the initial resistance by using the filter element resistance detection device 10.
As shown in fig. 4, when the filter member 20 is a cylindrical filter cartridge with a large cross-sectional area, and the cross-sectional shape of the portion of the filter member 20 inserted into the mounting opening 110 is circular, correspondingly, the cross-sectional shape of the mounting opening 110 is circular, and the cross-sectional shape of the mounting opening 110 is large, so that the cross-sectional size of the mounting opening 110 is adapted to the cross-sectional size of the filter member 20; as shown in fig. 5, when the filter member 20 is a cylindrical filter cartridge with a small cross-sectional area, and the cross-sectional shape of the portion of the filter member 20 inserted into the mounting opening 110 is circular, correspondingly, the cross-sectional shape of the mounting opening 110 is circular, and the cross-sectional shape of the mounting opening 110 is small, so that the cross-sectional size of the mounting opening 110 is adapted to the cross-sectional size of the filter member 20; as shown in fig. 6, when the filter member 20 is a flat square frame filter plate, and the cross-sectional shape of the portion of the filter member 20 inserted into the mounting opening 110 is rectangular, correspondingly, the cross-section of the mounting opening 110 is rectangular, and the cross-sectional size of the mounting opening 110 is adapted to the cross-sectional size of the filter member 20.
In some embodiments, referring to fig. 2, the filter resistance detection device 10 further includes a sealing member 500, and the sealing member 500 is configured to be sealingly disposed between the hole wall of the mounting opening 110 and the filter element 20. By providing the sealing member 500 between the hole wall of the mounting opening 110 and the filter member 20, the air in the first detection space 211 can enter the second detection space 212 only through the filter portion 21 of the filter member 20 and the mounting opening 110, and can not enter the second detection space 212 through the gap between the hole wall of the mounting opening 110 and the filter member 20, so as to improve the detection accuracy of the initial resistance of the filter portion 21 of the filter member 20 and reduce the detection error.
Alternatively, the seal 500 may be an O-ring rubber, an O-ring silicone, or other seal.
In some embodiments, referring to fig. 1 and 3, the filter resistance detection device 10 further includes a blower 600, and an air suction port of the blower 600 is communicated with the air outlet 230. The fan 600 is used for driving the air in the detection cartridge 200 to move from the air inlet 220 to the air outlet 230, and specifically, the fan 600 draws air at the air outlet 230 to form a negative pressure state in the detection cartridge 200, so as to drive the air to enter the detection cartridge 200 from the air inlet 220 and move towards the air outlet 230, thereby driving the air in the first detection space 211 to enter the second detection space 212 against the resistance of the filter plates of the filter element 20.
In some embodiments, referring to fig. 1 and fig. 3, the filter resistance detection device 10 further includes an air outlet pipe 700 and an exhaust pipe 800, one end of the air outlet pipe 700 is communicated with the air outlet 230, the other end of the air outlet pipe 700 is communicated with the air suction opening of the fan 600, and the air inlet of the exhaust pipe 800 is communicated with the air outlet of the fan 600. The two ends of the air outlet pipe 700 are respectively communicated with the air outlet 230 and the air suction opening of the fan 600, so that an air suction channel is formed, and air suction inside the detection cylinder 200 is realized; the exhaust pipe 800 is used as an exhaust channel, one end of the exhaust pipe 800 is an air inlet, the air inlet of the exhaust pipe 800 is communicated with an air outlet of the fan 600, and the other end of the exhaust pipe 800 is used for being communicated with the external atmosphere, so that the air pumped by the fan 600 from the detection cylinder 200 can be exhausted through the exhaust pipe 800, and the normal work of the fan 600 is ensured.
Optionally, the fan 600 is a variable frequency fan. The variable frequency fan can change the detection air quantity and the detection air speed, so as to detect the initial resistance value of the filter element 20 under different filter air quantity and filter air speed.
In some embodiments, referring to fig. 1 and 3, the filter resistance detection device 10 further includes a controller 900, and the controller 900 is communicatively coupled to the pressure detection member 300. The controller 900 may read, store and analyze the detection data of the pressure detecting member 300 to analyze the initial resistance of the filter member 20 according to the pressure difference between the first detection space 211 and the second detection space 212 detected by the pressure detecting member 300.
It is understood that the detected air flow rate, the detected air speed, the detected filter area of the filter element 20, and the type of the filter element may be inputted to the controller 900, and analyzed together with the detected pressure difference between the first detection space 211 and the second detection space 212 to obtain the initial resistance of the filter element 20.
Optionally, the controller 900 is a single chip, a PLC controller, or a micro control unit.
With reference to fig. 1, 3 and 4 to 6, the filter resistance detection apparatus 10 is used in the following manner: firstly, selecting a mounting plate 100 matched with the type and model of the filter element 20, mounting the filter element 20 on the mounting port 110 of the mounting plate 100, and arranging a sealing element 500 between the hole wall of the mounting port 110 and the filter element 20 to ensure the tightness between the hole wall of the mounting port 110 and the filter element 20 so as to ensure that all air in the first detection space 211 enters the second detection space 212 through the filter element 20 mounted on the mounting port 110; then, the mounting plate 100 is coupled to the mounting portion 240 in the detection cylinder 200, and the filter portion 21 of the filter member 20 is disposed in the first detection space 211; then, setting the filtering air speed of the fan 600, starting the fan 600, allowing the air to sequentially flow through the first detection space 211, the filtering part 21 of the filtering member 20, the second detection space 212 and the air outlet 230 through the air inlet 220, and reading, recording and storing the reading of the pressure detection member 300 through the controller 900 when the filtering air quantity in the detection cavity 210 reaches a preset value and the reading of the pressure detection member 300 is stable; and finally, analyzing the initial resistance of the filter element 20 under different detection conditions by combining the set parameters of the filtering air volume, the filtering air speed, the filtering area of the filter element 20, the model of the filter material and the like during detection.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A filter resistance detection device, comprising:
the mounting plate is provided with a mounting hole for mounting a filtering piece;
the detection device comprises a detection barrel, a mounting plate, a gas inlet, a gas outlet and a gas outlet, wherein the detection barrel is provided with a detection cavity, the mounting plate is arranged in the detection cavity and divides the detection cavity into a first detection space and a second detection space, the first detection space is communicated with the second detection space through a filter element arranged at a mounting port, and the detection barrel is also provided with a gas inlet communicated with the first detection space and a gas outlet communicated with the second detection space; and
a pressure detecting member for detecting a pressure difference between the first detection space and the second detection space.
2. The filter resistance testing device of claim 1, wherein the mounting plate is removably mounted within the test cartridge.
3. The filter resistance detection device of claim 2, further comprising a connector, wherein a mounting portion is formed on a side wall of the detection cartridge located in the detection chamber, and the mounting plate is detachably connected to the mounting portion via the connector.
4. The filter-resistance detection device according to claim 1, further comprising a fan having an air suction opening communicating with the air outlet.
5. The filter resistance detection device of claim 4, further comprising an air outlet pipe and an exhaust pipe, wherein one end of the air outlet pipe is communicated with the air outlet, the other end of the air outlet pipe is communicated with the air suction opening of the fan, and the air inlet of the exhaust pipe is communicated with the air outlet of the fan.
6. The filter-resistance detection device according to claim 4, wherein the fan is a variable frequency fan.
7. The filter-resistance detection device according to any one of claims 1 to 6, wherein the cross-sectional size of the mounting opening is adapted to the cross-sectional size of the portion of the mounting opening into which the filter member is inserted, and the cross-sectional shape of the mounting opening is adapted to the cross-sectional shape of the portion of the mounting opening into which the filter member is inserted.
8. The filter resistance test device of any one of claims 1 to 6, further comprising a sealing member for sealing between an aperture wall of the mounting opening and the filter element.
9. The filter-resistance detection device of any one of claims 1 to 6, further comprising a controller in communication with the pressure detection member.
10. The filter resistance detection device according to any one of claims 1 to 6, wherein the pressure detection member includes a first pressure sensor for detecting a first pressure value in the first detection space and a second pressure sensor for detecting a second pressure value in the second detection space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220796989.1U CN217359521U (en) | 2022-04-07 | 2022-04-07 | Filter resistance detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220796989.1U CN217359521U (en) | 2022-04-07 | 2022-04-07 | Filter resistance detection device |
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| Publication Number | Publication Date |
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| CN217359521U true CN217359521U (en) | 2022-09-02 |
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| CN202220796989.1U Active CN217359521U (en) | 2022-04-07 | 2022-04-07 | Filter resistance detection device |
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