Diluting type flue gas sampling device

Abstract

The utility model relates to the technical field of environmental protection monitoring, and discloses a dilution type flue gas sampling device which is composed of a fixing column, a rotating block, a first sliding rod, a first sliding block, a first spring, a handle, a limiting column, a first fixing block, a second sliding rod, a second sliding block, a second spring, a limiting block and a second fixing block. The fixing column is fixedly installed on the side face of the air filter shell, the rotating block is rotatably installed on the surface of the fixing column, the first sliding rod is slidably installed in the rotating block, the first sliding block is fixedly installed on the surface of the first sliding rod, and the first spring is connected to the surface of the first sliding rod in a sleeving mode. According to the dilution type flue gas sampling device, a limiting block can be separated from a limiting groove by pulling a handle, limiting on a limiting column is relieved, the limiting column can be separated from an arc-shaped groove in the surface of a fixing plate by pushing the handle, limiting on the fixing plate is relieved, a filter plate can be taken out through the fixing plate to be maintained or replaced, and the dilution type flue gas sampling device is convenient to use and good in effect.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection monitoring, in particular to a dilution type flue gas sampling device. Background Technique

[0002] With the improvement of environmental protection awareness and the increasing strictness of environmental protection regulations, the requirements for the monitoring and control of industrial flue gas emissions are getting higher and higher. The flue gas sampling device is an important tool for flue gas monitoring. By collecting flue gas samples, the types and concentrations of pollutants in the flue gas can be analyzed, providing data support for environmental protection management.

[0003] The patent with the application number 200420117187.5 discloses a new type of flue gas sampling dilution probe, which includes three parts: a pneumatic injector, a negative pressure shell and a heating and filtering device. Its three parts are three independent components fastened together. The pneumatic injector has a jet seat, a gas seat and a nozzle. The jet seat has an axial stepped through hole. One end of the exhaust hole of the axial stepped through hole is an exhaust nozzle, and the larger one is the mounting hole. The gas seat also has an axial stepped through hole. The larger one of the stepped through holes is the negative pressure hole. There is a vertical shaft hole communicating with the negative pressure hole in the gas seat. The gas seat is installed in the mounting hole of the jet seat and the jet nozzle of the smaller hole of the gas seat extends into the exhaust hole.

[0004] This new type of flue gas sampling dilution probe is not easy to be damaged, convenient for maintenance and disassembly, and has a low cost. However, there are still areas for improvement. For example, when maintaining or replacing the coarse filter plate and the fine filter plate of this device, it is necessary to disassemble the device from the boiler flue for operation, which is inconvenient to use and cannot meet the current requirements. Content of the Utility Model

[0005] The purpose of the utility model is to provide a dilution type flue gas sampling device to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A dilution type flue gas sampling device, including a gas filter shell, a filter plate, a fixing plate and a fixing device. The filter plate is inserted into the inside of the gas filter shell. The fixing plate is detachably installed on the side of the filter plate. The fixing device is arranged on the side of the gas filter shell.

[0007] The fixing device is composed of a fixing column, a rotating block, a first sliding rod, a first slider, a first spring, a handle, a limiting column, a first fixing block, a second sliding rod, a second slider, a second spring, a limiting block and a second fixing block. The fixing column is fixedly installed on the side surface of the air filter housing. The rotating block is rotatably installed on the surface of the fixing column. The first sliding rod is slidably installed inside the rotating block. The first slider is fixedly installed on the surface of the first sliding rod. The first spring is sleeved on the surface of the first sliding rod. The handle is fixedly installed at one end of the first sliding rod. The limiting column is fixedly installed on the side surface of the rotating block. The first fixing block is slidably installed inside the limiting column. The second sliding rod is slidably installed inside the limiting column. The second slider is fixedly installed on the surface of the second sliding rod. The second spring is sleeved on the surface of the second sliding rod. The limiting block is fixedly installed at one end of the second sliding rod. The second fixing block is fixedly installed at the other end of the second sliding rod.

[0008] Preferably, a sealing strip is provided on the opposite side of the fixing plate and the filter plate, and this setting ensures the sealing performance of the filter plate inside the air filter housing.

[0009] Preferably, one end of the first spring is fixedly connected to the rotating block, and the other end of the first spring is fixedly connected to the first slider. The first spring is provided to reset the first slider.

[0010] Preferably, the first fixing block is fixedly installed at the other end of the first sliding rod. With this setting, by pulling the handle, under the action of the first sliding rod, the first fixing block can slide inside the limiting column.

[0011] Preferably, the opposite surfaces of the first fixing block and the second fixing block are provided as inclined surfaces, and this setting enables the first fixing block and the second fixing block to move relatively.

[0012] Preferably, one end of the second spring is connected to the limiting column, and the other end of the second spring is connected to the second slider. The second spring is provided to reset the second slider.

[0013] Preferably, an arc-shaped groove matching the limiting column is opened in the air filter housing and communicated with the fixing plate. A limiting groove matching the limiting block is opened inside the fixing plate, and the limiting groove is communicated with the arc-shaped groove. The limiting column is provided to limit the fixing plate, and the limiting block is provided to limit the limiting column.

[0014] Compared with the prior art, the beneficial effect of the present utility model is that: by pulling the handle of this dilution type flue gas sampling device, the limiting block can be disengaged from the limiting groove to release the limitation on the limiting column. By pushing the handle, the limiting column can be disengaged from the arc-shaped groove on the surface of the fixing plate to release the limitation on the fixing plate. The filter plate can be taken out through the fixing plate for maintenance or replacement, and the use is convenient and the effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 This is the schematic diagram of the filter plate and the fixing plate structure of the present utility model;

[0017] Figure 3 This is the schematic diagram of the rotating block and the limiting post structure of the present utility model;

[0018] Figure 4 This is the schematic diagram of the fixing post, the rotating block and the handle structure of the present utility model;

[0019] Figure 5 This is the present utility model Figure 4 The enlarged schematic diagram of part A.

[0020] In the figure: 1. Air filter housing; 2. Filter plate; 3. Fixing plate; 4. Fixing device; 401. Fixing post; 402. Rotating block; 403. First slide bar; 404. First slider; 405. First spring; 406. Handle; 407. Limiting post; 408. First fixing block; 409. Second slide bar; 410. Second slider; 411. Second spring; 412. Limiting block; 413. Second fixing block. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 , the present utility model provides a technical solution: a diluted flue gas sampling device, including an air filter housing 1, a filter plate 2, a fixing plate 3, and a fixing device 4. The filter plate 2 is inserted into the interior of the air filter housing 1. The fixing plate 3 is detachably installed on the side of the filter plate 2. A sealing strip is provided on the side where the fixing plate 3 and the filter plate 2 face each other. This setting ensures the sealing performance of the filter plate 2 inside the air filter housing 1. The fixing device 4 is arranged on the side of the air filter housing 1.

[0023] The fixing device 4 is composed of a fixing column 401, a rotating block 402, a first sliding rod 403, a first slider 404, a first spring 405, a handle 406, a limiting column 407, a first fixing block 408, a second sliding rod 409, a second slider 410, a second spring 411, a limiting block 412, and a second fixing block 413. The fixing column 401 is fixedly installed on the side surface of the air filter housing 1. The rotating block 402 is rotatably installed on the surface of the fixing column 401. The first sliding rod 403 is slidably installed inside the rotating block 402. The first slider 404 is fixedly installed on the surface of the first sliding rod 403. The first spring 405 is sleeved on the surface of the first sliding rod 403. One end of the first spring 405 is fixedly connected to the rotating block 402, and the other end of the first spring 405 is fixedly connected to the first slider 404. The first spring 405 is provided to reset the first slider 404. The handle 406 is fixedly installed at one end of the first sliding rod 403. The limiting column 407 is fixedly installed on the side surface of the rotating block 402. The first fixing block 408 is slidably installed inside the limiting column 407. The first fixing block 408 is fixedly installed at the other end of the first sliding rod 403. By pulling the handle 406, under the action of the first sliding rod 403, the first fixing block 408 can slide inside the limiting column 407. The second sliding rod 409 is slidably installed inside the limiting column 407. The second slider 410 is fixedly installed on the surface of the second sliding rod 409. The second spring 411 is sleeved on the surface of the second sliding rod 409. One end of the second spring 411 is connected to the limiting column 407, and the other end of the second spring 411 is connected to the second slider 410. The second spring 411 is provided to reset the second slider 410. The limiting block 412 is fixedly installed at one end of the second sliding rod 409. The air filter housing 1 and the fixing plate 3 are communicated with each other and provided with an arc-shaped groove matching the limiting column 407. The inside of the fixing plate 3 is provided with a limiting groove matching the limiting block 412, and the limiting groove is communicated with the arc-shaped groove. The limiting column 407 is provided to limit the fixing plate 3, and the limiting block 412 is provided to limit the limiting column 407. The second fixing block 413 is fixedly installed at the other end of the second sliding rod 409. The opposite surfaces of the first fixing block 408 and the second fixing block 413 are provided as inclined surfaces, and this setting can make the first fixing block 408 and the second fixing block 413 move relatively.

[0024] When in use, pull the handle 406. Under the action of the first sliding rod 403, the first fixing block 408 can slide inside the limiting column 407 and compress the first spring 405. Under the action of the second spring 411, the second fixing block 413 can move on the surface of the first fixing block 408, and the second sliding rod 409 can drive the limiting block 412 to disengage from the limiting groove, releasing the limit on the limiting column 407. Push the handle 406, and the limiting column 407 can disengage from the arc-shaped groove on the surface of the fixing plate 3, releasing the limit on the fixing plate 3. Through the fixing plate 3, the filter plate 2 can be taken out for maintenance or replacement.

[0025] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A dilution type flue gas sampling device, comprising an air filter housing (1), a filter plate (2), a fixing plate (3), and a fixing device (4), characterized in that: The filter plate (2) is inserted into the interior of the air filter housing (1), the fixing plate (3) is detachably mounted on the side of the filter plate (2), and the fixing device (4) is arranged on the side of the air filter housing (1); The fixing device (4) comprises a fixing column (401), a rotating block (402), a first sliding rod (403), a first slider (404), a first spring (405), a handle (406), a limiting column (407), a first fixing block (408), a second sliding rod (409), a second slider (410), a second spring (411), a limiting block (412), and a second fixing block (413), wherein the fixing column (401) is fixedly mounted on a side surface of the air filter housing (1), the rotating block (402) is rotatably mounted on a surface of the fixing column (401), the first sliding rod (403) is slidably mounted inside the rotating block (402), the first slider (404) is fixedly mounted on a surface of the first sliding rod (403), and the second slider (411) is fixedly mounted on a surface of the first sliding rod (403). A spring (405) is sleeved on the surface of the first sliding rod (403), the handle (406) is fixedly installed on one end of the first sliding rod (403), the limiting column (407) is fixedly installed on the side of the rotating block (402), the first fixed block (408) is slidably installed inside the limiting column (407), the second sliding rod (409) is slidably installed inside the limiting column (407), the second sliding block (410) is fixedly installed on the surface of the second sliding rod (409), the second spring (411) is sleeved on the surface of the second sliding rod (409), the limiting block (412) is fixedly installed on one end of the second sliding rod (409), and the second fixed block (413) is fixedly installed on the other end of the second sliding rod (409).

2. A dilution type flue gas sampling device according to claim 1, characterized in that: A sealing strip is provided on one side of the fixing plate (3) and the filter plate (2) that is opposite to each other.

3. A dilution type flue gas sampling device according to claim 1, characterized in that: One end of the first spring (405) is fixedly connected to the rotating block (402), and the other end of the first spring (405) is fixedly connected to the first sliding block (404).

4. A dilution type flue gas sampling device according to claim 1, characterized in that: The first fixing block (408) is fixedly mounted on the other end of the first sliding rod (403).

5. A dilution type flue gas sampling device according to claim 1, characterized in that: One side opposite to the first fixing block (408) and the second fixing block (413) is configured as an inclined surface.

6. A dilution type flue gas sampling device according to claim 1, characterized in that: One end of the second spring (411) is connected to the limiting column (407), and the other end of the second spring (411) is connected to the second sliding block (410).

7. A dilution type flue gas sampling device according to claim 1, characterized in that: The air filter housing (1) is connected to the fixing plate (3) and is provided with an arc-shaped groove matching the limiting column (407); a limiting groove matching the limiting block (412) is provided inside the fixing plate (3), and the limiting groove and the arc-shaped groove are connected.

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