Device for detecting filtering efficiency of filter material

Abstract

The utility model relates to a device for detecting the filtering efficiency of a filter material. The gas storage container is communicated with the gas outlet of the filter, and the gas outlet of the gas storage container is connected with a first gas path and a second gas path; the first electromagnetic valve is arranged in the first gas circuit and is communicated with a gas inlet of the upper clamp, and the second electromagnetic valve is communicated with a gas outlet of the upper clamp; the lower clamp is arranged on the exhaust assembly and matched with the upper clamp, the lower clamp and the upper clamp can be closed or separated, and the exhaust assembly is communicated with the second electromagnetic valve; and the third electromagnetic valve is arranged on the second air path and communicates with the exhaust assembly. The fine dust attached to the surface of the filter material is cleaned, on the basis, after the filter efficiency of the filter material is tested, the accuracy of the detection result of the filter efficiency is not affected, and the filter efficiency of the filter material can be scientifically evaluated.

Description

Technical Field

[0001] The present application relates to the technical field of filtration efficiency detection, and in particular to a filter material filtration efficiency detection device. Background Art

[0002] In enterprises in industries such as chemical, agricultural, and smelting, gas filtration equipment is a kind of environmental protection equipment that must be installed to prevent toxic and harmful waste gases from being directly discharged into the gas, causing harm to surrounding vegetation, animals, and people. Dust is one of the main objects that gas filtration equipment removes, and the dust filtration efficiency of the filter material installed in the gas filtration equipment is an important performance indicator for evaluating gas filtration equipment.

[0003] At present, in the related technology, when testing the dust removal efficiency of the filter material, the filter material to be tested is directly exposed to the dusty environment, and when the filter material is cut into samples, it will easily cause a large amount of fine dust to adhere to the surface of the filter material. If the filter material is tested directly, the presence of fine dust will affect the accuracy of the test results of the filtration efficiency, and thus it is impossible to make a scientific evaluation of the filtration efficiency of the filter material. Summary of the invention

[0004] Based on this, it is necessary to provide a filter material filtration efficiency detection device to address the problem of low accuracy of detection results in the prior art.

[0005] The present application provides a filter material filtration efficiency detection device, which includes:

[0006] Filters;

[0007] An air storage container, the air storage container is communicated with the air outlet of the filter, and the air outlet of the air storage container is connected to a first air path and a second air path;

[0008] A first solenoid valve, an upper fixture, and a second solenoid valve, wherein the first solenoid valve is disposed in the first gas path and communicated with an air inlet of the upper fixture, and the second solenoid valve is communicated with an air outlet of the upper fixture;

[0009] a lower clamp and an exhaust assembly, wherein the lower clamp is arranged on the exhaust assembly and assembled with the upper clamp, the lower clamp and the upper clamp can be closed or separated, and the exhaust assembly is connected to the second solenoid valve; and,

[0010] A third solenoid valve is disposed on the second gas path and is communicated with the exhaust component.

[0011] The filter material filtration efficiency detection device of the present scheme is used in the working environment where the filtration efficiency of the filter material is tested. When in use, the filter is connected to the air outlet of the compressor, and the gas discharged from the compressor flows through the filter and is filtered, and then flows into the gas storage container for temporary storage. The filter material to be tested is placed between the upper clamp and the lower clamp, and the filter material is clamped and fixed after the upper clamp and the lower clamp are moved close to each other; then, the first solenoid valve, the second solenoid valve and the third solenoid valve are opened respectively, and the gas in the gas storage container first flows into the upper clamp along the first gas path to spray the upper surface of the filter material, thereby The fine dust attached to the upper surface of the filter material is removed and flows into the exhaust component through the second solenoid valve for discharge. At the same time, the gas flowing along the second gas path flows into the exhaust component through the third solenoid valve to spray the lower surface of the filter material, thereby removing the fine dust attached to the lower surface of the filter material, and the gas carries the fine dust and is discharged by the exhaust component. In this way, the fine dust attached to the surface of the filter material is removed. On this basis, when the filtration efficiency of the filter material is tested, it will not affect the accuracy of the test results of the filtration efficiency, and a scientific evaluation of the filtration efficiency of the filter material can be made.

[0012] The technical solution of this application is further described below:

[0013] In one of the embodiments, the filter material filtration efficiency detection device further includes a blowing member, which is disposed in the exhaust assembly and is connected to the third solenoid valve.

[0014] In one of the embodiments, the blowing member comprises a blowing pipe, the blowing pipe is provided with a plurality of blowing ports, and the plurality of blowing ports are arranged at intervals along the annular extension direction of the blowing pipe.

[0015] In one of the embodiments, the filter material filtration efficiency detection device further includes a lifting drive, and the lifting drive is connected to the upper clamp to drive the upper clamp to move closer to or away from the lower clamp.

[0016] In one embodiment, the exhaust assembly includes an exhaust pipe and an exhaust pump, the lower clamp is arranged at an upper pipe opening of the exhaust pipe, and the exhaust pump is arranged at a lower pipe opening of the exhaust pipe away from the lower clamp.

[0017] In one embodiment, the air outlet of the gas storage container is also connected to a test pipeline, and the test pipeline is communicated with the upper clamp. The filter material filtration efficiency detection device also includes an oily particle device, a salt particle device, a dispersion device, a fourth solenoid valve, a first particle number detector and a second particle number detector. The oily particle device and the salt particle device are arranged in the test pipeline and are upstream of the dispersion device. The fourth solenoid valve and the first particle number detector are sequentially arranged in the test pipeline and are downstream of the dispersion device. The second particle number detector is arranged in the exhaust component.

[0018] In one of the embodiments, the filter material filtration efficiency detection device further includes a gas agitator, and the gas agitator is disposed inside the diffuser.

[0019] In one of the embodiments, the filter material filtration efficiency detection device further includes a particle concentration detector, and the particle concentration detector is disposed in the dispersion device.

[0020] In one of the embodiments, the filter material filtration efficiency detection device further includes a flow meter, which is disposed in the test pipeline and between the flow dispersion device and the fourth solenoid valve.

[0021] In one of the embodiments, the filter material filtration efficiency detection device further includes a pressure regulating valve, and the pressure regulating valve is connected between the filter and the gas storage container. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a structural schematic diagram of a filter material filtration efficiency detection device described in an embodiment.

[0025] Figure 2 This is the internal structure diagram of the filter material filtration efficiency detection device.

[0026] Figure 3 Schematic diagram of the structure of an upper clamp according to an embodiment.

[0027] Description of reference numerals:

[0028] 100, filter material filtration efficiency detection device; 10, filter; 20, gas storage container; 30, first solenoid valve; 40, upper clamp; 50, second solenoid valve; 60, lower clamp; 70, exhaust assembly; 71, exhaust pipe; 72, exhaust pump; 80, third solenoid valve; 90, blowpipe; 90a, lifting drive; 90b, oily particle device; 90c, salt particle device; 90d, dispersion device; 90e, fourth solenoid valve; 90f, first particle number detector; 90g, second particle number detector; 90h, gas agitator; 90i, particle concentration detector; 90j, flow meter; 90k, pressure regulating valve. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0030] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0031] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0035] See also Figures 1 to 3 , a filter material filtration efficiency detection device 100 is shown in an embodiment of the present application, which includes a filter 10, an air storage container 20, a first solenoid valve 30, an upper clamp 40, a second solenoid valve 50, a lower clamp 60, an exhaust assembly 70 and a third solenoid valve 80.

[0036] The filter 10 is used to filter the gas input from the compressor to prevent impurities in the gas from interfering with the filtering efficiency of the filter material. Preferably, the filter 10 in the present application has a primary filtering module and a secondary filtering module, the primary filtering module is used to preliminarily remove larger particles or oily dust, and the secondary filtering module is mainly used to filter fine particles on the basis of the primary filtering, so that the gas entering the gas storage container 20 does not contain dust particles, reducing the gas mixed with particles during the test process and affecting the error of the test results.

[0037] Optionally, the primary filter module and the secondary filter module may adopt any one of physical filtration, chemical filtration, biological filtration, etc., and the primary filter module and the secondary filter module may be the same or different, and can be selected according to actual needs.

[0038] The gas storage container 20 is connected to the air outlet of the filter 10, and the air outlet of the gas storage container 20 is connected to the first air path and the second air path; the first solenoid valve 30 is arranged in the first air path and is connected to the air inlet of the upper clamp 40, and the second solenoid valve 50 is connected to the air outlet of the upper clamp 40; the lower clamp 60 is arranged in the exhaust component 70 and is assembled with the upper clamp 40, the lower clamp 60 and the upper clamp 40 can be closed or separated, and the exhaust component 70 is connected to the second solenoid valve 50; the third solenoid valve 80 is arranged on the second air path and is connected to the exhaust component 70.

[0039] In summary, the implementation of the technical solution of this embodiment will have the following beneficial effects: the filter material filtration efficiency detection device 100 of this solution is applied to a working environment where the filtration efficiency of the filter material is tested. When in use, the filter 10 is connected to the air outlet of the compressor, and the gas discharged from the compressor flows through the filter 10 and is filtered, and then flows into the gas storage container 20 for temporary storage. The filter material to be tested is placed between the upper clamp 40 and the lower clamp 60, and the filter material is clamped and fixed after the upper clamp 40 and the lower clamp 60 are moved close to each other; then, the first solenoid valve 30, the second solenoid valve 50 and the third solenoid valve 80 are opened respectively, and the gas in the gas storage container 20 first flows along the first gas path The air flows into the upper clamp 40, sprays the upper surface of the filter material, thereby removing the fine dust attached to the upper surface of the filter material, and flows into the exhaust component 70 through the second solenoid valve 50 for discharge. At the same time, the gas flowing along the second air path flows into the exhaust component 70 through the third solenoid valve 80, and sprays the lower surface of the filter material, thereby removing the fine dust attached to the lower surface of the filter material, and the gas carries the fine dust and is discharged by the exhaust component 70; in this way, the fine dust attached to the surface of the filter material is cleaned up, and after the filtration efficiency of the filter material is tested on this basis, it will not affect the accuracy of the test results of the filtration efficiency, and the filtration efficiency of the filter material can be scientifically evaluated.

[0040] The upper fixture 40 and the lower fixture 60 both adopt a concave cover structure. The air inlet and the air outlet of the upper fixture 40 are located on opposite sides of the straight line direction, so that the gas can enter the upper fixture 40, remove the fine dust on the surface of the filter material, and then flow directly to the air outlet and out of the upper fixture 40, thereby improving the removal efficiency.

[0041] Please continue reading Figure 2On the basis of the above embodiment, the filter material filtration efficiency detection device 100 further includes a pressure regulating valve 90k, which is connected between the filter 10 and the gas storage container 20. The pressure regulating valve 90k is used to adjust the pressure of the gas input from the filter 10 into the gas storage container 20, to avoid the potential safety hazard caused by excessive pressure in the gas storage container 20, and to avoid insufficient pressure in the gas storage container 20, which causes insufficient power for subsequent gas output.

[0042] In another embodiment, the filter material filtration efficiency detection device 100 further includes a blowing member, which is disposed on the exhaust assembly 70 and is connected to the third solenoid valve 80. The gas output from the gas storage container 20 flows into the blowing member via the third solenoid valve 80, and the blowing member sprays the gas at a certain pressure toward the lower surface of the filter material, thereby better removing the fine dust attached to the lower surface of the filter material.

[0043] Furthermore, the blowing member includes a blowing pipe 90, and the blowing pipe 90 is provided with a plurality of blowing ports, which are arranged at intervals along the annular extension direction of the blowing pipe 90. The gas flowing into the blowing pipe 90 is simultaneously blown from the plurality of blowing ports to various parts of the lower surface of the filter material, so that the attached fine dust can be removed more evenly and efficiently, and residual dead corners can be avoided, so as to prevent interference with the subsequent test results of the filter material filtration efficiency.

[0044] Please continue reading Figure 1 and Figure 2 , both the cleaning before the test and the testing after the cleaning require the upper clamp 40 and the lower clamp 60 to be able to move closer to each other and close to clamp the filter material, and after the test, the upper clamp 40 and the lower clamp 60 are moved away from each other and opened to remove the filter material. In this regard, the filter material filtration efficiency detection device 100 also includes a lifting drive 90a, which is connected to the upper clamp 40 to drive the upper clamp 40 to move closer to or away from the lower clamp 60.

[0045] For example, the lifting driver 90a can be any one of a pneumatic cylinder, an electric push rod, an oil cylinder, etc. Taking the pneumatic cylinder as an example, the pneumatic cylinder is installed in a vertical posture, the piston rod is arranged toward the lower clamp 60 and connected to the upper clamp 40, and the lifting movement of the piston rod can drive the upper clamp 40 to move closer to or away from the lower clamp 60, which has a simple structure, low implementation cost and high reliability.

[0046] Please continue reading Figure 2In one embodiment, the exhaust assembly 70 includes an exhaust pipe 71 and an exhaust pump 72. The lower fixture 60 is disposed at the upper pipe opening of the exhaust pipe 71, and the exhaust pump 72 is disposed at the lower pipe opening of the exhaust pipe 71 away from the lower fixture 60. When working, the exhaust pump 72 sucks the gas in the exhaust pipe 71 to form a negative pressure environment in the exhaust pipe 71, so that when removing fine dust on the upper and lower surfaces of the filter material, the gas containing fine dust can be sucked into the exhaust pipe 71 in time, and finally pumped out from the exhaust pump 72, thereby improving the effect of pre-cleaning the filter material.

[0047] In addition, based on any of the above embodiments, the air outlet of the air storage container 20 is also connected to a test pipeline, which is connected to the upper clamp 40. The filter material filtration efficiency detection device 100 also includes an oily particle device 90b, a salt particle device 90c, a diffuser 90d, a fourth solenoid valve 90e, a first particle number detector 90f and a second particle number detector 90g. The oily particle device 90b and the salt particle device 90c are arranged in the test pipeline and are upstream of the diffuser 90d. The fourth solenoid valve 90e and the first particle number detector 90f are sequentially arranged in the test pipeline and are downstream of the diffuser 90d. The second particle number detector 90g is arranged in the exhaust component 70.

[0048] After the pre-cleaning of the filter material is completed, the formal test of the filter material filtration efficiency can be carried out immediately. At this time, the first solenoid valve 30, the second solenoid valve 50 and the third solenoid valve 80 are closed, and the fourth solenoid valve 90e is opened, so that the gas storage container 20 can only output gas to the test pipeline. The gas first flows through the salt particle device 90c or the oily particle device 90b, and then enters the dispersion device 90d. After the salt particles or oily particles are fully dispersed and evenly distributed in the dispersion device 90d, they flow through the first particle number detector 90f to record the first particle number value; then the gas containing the salt particles or oily particles enters the upper clamp 40 and passes through the filter material and then enters the exhaust pipe 71. The second particle number detector 90g detects and records the second particle number value in the gas filtered by the filter material. By calculating and comparing the first particle number value and the second particle number value, the filtration efficiency of the filter material can be calculated.

[0049] Please continue reading Figure 2 On the basis of the above embodiment, the filter material filtration efficiency detection device 100 further includes a gas agitator 90h, which is arranged inside the diffuser 90d. The gas agitator 90h is used to stir the gas flowing into the diffuser 90d, so that the salt or oily particles in the device are evenly suspended in the device, avoiding the deposition of particles and affecting the concentration of the particulate gas during the test, and the measurement accuracy is higher.

[0050] Furthermore, the filter material filtration efficiency detection device 100 further includes a particle concentration detector 90i, which is disposed in the diffuser 90d. The particle concentration detector 90i is used to detect the particle concentration in the diffuser 90d in real time, so as to adjust the generation amount of the salt particle device 90c or the oily particle device 90b.

[0051] Furthermore, the filter material filtration efficiency detection device 100 also includes a flow meter 90j, which is arranged in the test pipeline and between the diffuser 90d and the fourth solenoid valve 90e. The flow meter 90j is used to record the gas flow of the salt particles or oily particles so as to control the number of salt particles or oily particles involved in the filtration efficiency test.

[0052] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A filter material filtration efficiency detection device, characterized in that: include: Filters; An air storage container, the air storage container is communicated with the air outlet of the filter, and the air outlet of the air storage container is connected to a first air path and a second air path; A first solenoid valve, an upper fixture, and a second solenoid valve, wherein the first solenoid valve is disposed in the first gas path and communicated with an air inlet of the upper fixture, and the second solenoid valve is communicated with an air outlet of the upper fixture; a lower clamp and an exhaust assembly, wherein the lower clamp is arranged on the exhaust assembly and assembled with the upper clamp, the lower clamp and the upper clamp can be closed or separated, and the exhaust assembly is connected to the second solenoid valve; and, A third solenoid valve is disposed on the second gas path and is communicated with the exhaust component.

2. The filter material filtration efficiency detection device according to claim 1, characterized in that: The filter material filtration efficiency detection device also includes a blowing component, which is arranged on the exhaust component and communicated with the third solenoid valve.

3. The filter material filtration efficiency detection device according to claim 2, characterized in that: The blowing member comprises a blowing pipe, the blowing pipe is provided with a plurality of blowing ports, and the plurality of blowing ports are arranged at intervals along the annular extension direction of the blowing pipe.

4. The filter material filtration efficiency detection device according to claim 1, characterized in that: The filter material filtration efficiency detection device also includes a lifting driver, which is connected to the upper clamp to drive the upper clamp to approach or move away from the lower clamp.

5. The filter material filtration efficiency detection device according to claim 1, characterized in that: The exhaust assembly comprises an exhaust pipe and an exhaust pump. The lower clamp is arranged at the upper pipe opening of the exhaust pipe, and the exhaust pump is arranged at the lower pipe opening of the exhaust pipe away from the lower clamp.

6. The filter material filtration efficiency detection device according to claim 1, characterized in that: The air outlet of the gas storage container is also connected to a test pipeline, which is communicated with the upper clamp. The filter material filtration efficiency detection device also includes an oily particle device, a salt particle device, a diffuser, a fourth solenoid valve, a first particle number detector, and a second particle number detector. The oily particle device and the salt particle device are arranged in the test pipeline and are upstream of the diffuser, the fourth solenoid valve and the first particle number detector are sequentially arranged in the test pipeline and are downstream of the diffuser, and the second particle number detector is arranged in the exhaust component.

7. The filter material filtration efficiency detection device according to claim 6, characterized in that: The filter material filtration efficiency detection device also includes a gas agitator, and the gas agitator is arranged inside the diffuser.

8. The filter material filtration efficiency detection device according to claim 6, characterized in that: The filter material filtration efficiency detection device also includes a particle concentration detector, which is arranged in the dispersion device.

9. The filter material filtration efficiency detection device according to claim 6, characterized in that: The filter material filtration efficiency detection device also includes a flow meter, which is arranged in the test pipeline and between the flow dispersion device and the fourth solenoid valve.

10. The filter material filtration efficiency detection device according to claim 1, characterized in that: The filter material filtration efficiency detection device also includes a pressure regulating valve, which is connected between the filter and the gas storage container.

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