Gas detector

Abstract

The utility model relates to a gas detector which comprises a detection box, one side face of the detection box is fixedly connected with a square gas inlet pipe communicated with the interior of the detection box, the interior of the square gas inlet pipe is fixedly connected with two filter screens, and one side of each filter screen is provided with a dust collecting hopper which penetrates through the square gas inlet pipe and is fixedly connected with the penetrating portion. The upper end face of the square air inlet pipe is fixedly connected with a fixing frame, a movable plate is arranged in the fixing frame, and the two ends of the movable plate are fixedly connected with limiting sliding blocks which are in sliding connection with the inner walls of limiting sliding grooves formed in the inner surface of the fixing frame correspondingly; the moving plate is connected with the fixing frame through a lifting mechanism. The gas detector disclosed by the utility model is convenient for subsequent workers to clean impurities adsorbed on the surface of the filter screen, and the filter screen can be cleaned without being detached, so that the gas detector is relatively practical.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection devices, in particular to a gas detector. Background Art

[0002] The published patent document with publication number CN218382595U discloses a real-time detection device for boiler gas in power plants. Three detection boxes are each equipped with a detection probe, and the front of each of the three detection boxes is provided with an air intake pipe. A primary filter is provided at the front end of the air intake pipe, and a secondary filter is provided inside the air intake pipe. A slag discharge pipe is provided between the primary filter and the secondary filter at the lower end of the air intake pipe.

[0003] However, the above-mentioned prior art still has some shortcomings when used. When cleaning the secondary filter, the above-mentioned prior art needs to disassemble the secondary filter before cleaning can be completed, and it needs to be reinstalled after cleaning, which is inconvenient. For this reason, we propose a gas detector. Utility Model Content

[0004] The utility model provides a gas detector, which solves the technical problems raised by the background technology in the prior art.

[0005] The solution of the utility model to solve the above technical problems is as follows: it includes a detection box, one side of the detection box is fixedly connected to a square air inlet pipe connected to the interior of the detection box, and two filter screens are fixedly connected to the interior of the square air inlet pipe, and one side of the filter screen is provided with an ash collecting hopper that penetrates the square air inlet pipe and is fixedly connected to the penetration part, and the lower end of the ash collecting hopper is fixedly connected to an ash dropping pipe that is connected to the interior of the ash collecting hopper, and a valve is provided on the surface of the ash dropping pipe. The upper end face of the square air inlet pipe is fixedly connected to a fixing frame, and a movable plate is provided inside the fixing frame, and both ends of the movable plate are fixedly connected to a limit sliding block that is slidably connected to the inner wall of a limit sliding groove opened on the inner surface of the fixed frame. The movable plate is connected to the fixed frame through a lifting mechanism, and one side of the two filter screens is slidably connected to a dust cleaning brush, and the upper end face of the dust cleaning brush is fixedly connected to a push plate that penetrates the square air inlet pipe and is slidably connected to the penetration part, and the upper end of the push plate is fixedly connected to the lower end face of the movable plate.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, a detection probe is provided at the upper end of the interior of the detection box, and an air extraction pipe communicating with the interior of the detection box is fixedly connected to the other side of the detection box.

[0008] Furthermore, one end of the exhaust pipe is fixedly connected to a negative pressure fan whose exhaust end is connected to the interior of the exhaust pipe.

[0009] Furthermore, a controller is provided on the front end surface of the detection box, and two mutually symmetrical supporting bottom blocks are fixedly connected to the bottom surface of the detection box.

[0010] Furthermore, the lifting mechanism includes a bidirectional motor fixedly connected to the upper end surface of the fixing frame, and the mesh sizes of the two filter screens inside the square air inlet pipe decrease from the outside to the inside.

[0011] Furthermore, the output end of the bidirectional motor is fixedly connected to a threaded rod that passes through the fixed frame and is rotatably connected to the passing portion via a bearing, and the threaded rod passes through the movable plate and is threadedly connected to the passing portion.

[0012] The beneficial effects of the present invention are as follows: The present invention provides a gas detector having the following advantages:

[0013] Through the cooperation between the square air inlet pipe, ash hopper, ash drop pipe, fixed frame, movable plate, lifting mechanism, push plate, limit slide groove and limit slider, it is convenient for the staff to clean the impurities adsorbed on the surface of the filter screen in the future, and the cleaning can be completed without disassembling the filter screen, thereby improving practicality.

[0014] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the following is a detailed description of the preferred embodiments of the present invention with the accompanying drawings. The specific implementation methods of the present invention are given in detail in the following embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 A schematic structural diagram of a gas detector provided in one embodiment of the present utility model;

[0017] Figure 2 for Figure 1 A schematic side view of a local structure of a gas detector is provided;

[0018] Figure 3 for Figure 1 A schematic front view and cross-sectional view of a local structure in a gas detector is provided.

[0019] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0020] 1. Fixed frame; 2. Moving plate; 3. Push plate; 4. Bidirectional motor; 5. Threaded rod; 6. Square air inlet pipe; 7. Ash collecting hopper; 8. Ash dropping pipe; 9. Detection box; 10. Detection probe; 11. Controller; 12. Support base; 13. Exhaust pipe; 14. Negative pressure fan; 15. Ash cleaning brush; 16. Filter; 17. Limit slide; 18. Limit slider. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-3 The principles and features of the present invention are described, and the examples provided are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are greatly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0022] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] like Figure 1-3As shown, the utility model provides a gas detector, including a detection box 9, one side of the detection box 9 is fixedly connected to a square air inlet pipe 6 communicating with the interior of the detection box 9, and two filter screens 16 are fixedly connected to the interior of the square air inlet pipe 6, and a dust collecting hopper 7 is provided on one side of the filter screen 16, which penetrates the square air inlet pipe 6 and is fixedly connected to the through-passing portion. The lower end of the ash collecting hopper 7 is fixedly connected to a dust dropping pipe 8 communicating with the interior of the ash collecting hopper 7, and a valve is provided on the surface of the dust dropping pipe 8. The upper end surface of the square air inlet pipe 6 is fixedly connected to a fixing frame 1, and a movable plate 2 is provided inside the fixing frame 1. Both ends of the movable plate 2 are fixedly connected to a limit slider 18 that is slidably connected to the inner wall of a limit slide groove 17 opened on the inner surface of the fixing frame 1. The movable plate 2 is connected to the fixing frame 1 through a lifting mechanism. One side of the two filter screens 16 is slidably connected to a dust cleaning brush 15, and the upper end surface of the dust cleaning brush 15 is fixedly connected to a push plate 3 that penetrates the square air inlet pipe 6 and is slidably connected to the through-passing portion, and the upper end of the push plate 3 is fixedly connected to the lower end surface of the movable plate 2.

[0025] Preferably, a detection probe 10 is provided at the upper end of the detection box 9 , and an exhaust pipe 13 communicating with the interior of the detection box 9 is fixedly connected to the other side of the detection box 9 .

[0026] Preferably, one end of the exhaust pipe 13 is fixedly connected to a negative pressure fan 14 whose exhaust end is communicated with the interior of the exhaust pipe 13 . The negative pressure fan 14 can be provided to perform exhaust processing.

[0027] Preferably, a controller 11 is provided on the front end surface of the detection box 9, and two mutually symmetrical supporting bottom blocks 12 are fixedly connected to the bottom surface of the detection box 9. The provision of the supporting bottom blocks 12 can play a supporting role.

[0028] Preferably, the lifting mechanism includes a bidirectional motor 4 fixedly connected to the upper end surface of the fixing frame 1, and the mesh sizes of the two filter screens 16 inside the square air inlet pipe 6 decrease from the outside to the inside.

[0029] Preferably, the output end of the bidirectional motor 4 is fixedly connected to a threaded rod 5 that passes through the fixed frame 1 and is rotatably connected to the passing portion through a bearing. The threaded rod 5 passes through the movable plate 2 and is threadedly connected to the passing portion. The setting of the threaded rod 5 can enable the movable plate 2 to be raised and lowered.

[0030] The specific working principle and usage of this utility model are as follows:

[0031] The utility model provides a gas detector. When in use, the boiler gas can be drawn into the detection box 9 through the square air inlet pipe 6 by starting the negative pressure fan 14. Before the boiler gas enters the detection box 9, the boiler gas will be filtered layer by layer through the two filters 16. When it is necessary to clean the dust particles adsorbed on the surface of the filter 16 later, the threaded rod 5 is rotated by controlling the bidirectional motor 4, so that the movable plate 2 can move stably under the action of the limiting slider 18 and the limiting slide groove 17, and then the cleaning plate brush 15 can be moved on the surface of the filter 16 under the action of the push plate 3, so that the dust particles adsorbed on the surface of the filter 16 can be cleaned. The cleaned dust particles will fall into the ash collecting hopper 7 for collection. The staff can discharge the collected dust particles by opening the valve of the ash dropping pipe 8 later, which is more convenient.

[0032] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A gas detector comprising a detection box (9), characterized in that: A square air inlet pipe (6) communicating with the interior of the detection box (9) is fixedly connected to one side of the detection box (9), two filter screens (16) are fixedly connected to the interior of the square air inlet pipe (6), and an ash collecting hopper (7) is provided on one side of the filter screen (16) and passes through the square air inlet pipe (6) and is fixedly connected to the passing portion. The lower end of the ash collecting hopper (7) is fixedly connected to an ash dropping pipe (8) communicating with the interior of the ash collecting hopper (7), and a valve is provided on the surface of the ash dropping pipe (8). The upper end surface of the square air inlet pipe (6) is fixedly connected to a fixing frame (1), and the fixing frame (1) has a fixed portion. A movable plate (2) is provided at the bottom, and both ends of the movable plate (2) are fixedly connected with limit sliders (18) that are slidably connected to the inner wall of a limit slide groove (17) provided on the inner surface of the fixed frame (1). The movable plate (2) is connected to the fixed frame (1) through a lifting mechanism, and one side of the two filter screens (16) is slidably connected with a dust cleaning brush (15). The upper end surface of the dust cleaning brush (15) is fixedly connected with a push plate (3) that penetrates the square air inlet pipe (6) and is slidably connected to the penetrating portion, and the upper end of the push plate (3) is fixedly connected to the lower end surface of the movable plate (2).

2. A gas detector according to claim 1, characterized in that: A detection probe (10) is provided at the upper end of the interior of the detection box (9), and an exhaust pipe (13) communicating with the interior of the detection box (9) is fixedly connected to the other side of the detection box (9).

3. A gas detector according to claim 2, characterized in that: One end of the exhaust pipe (13) is fixedly connected to a negative pressure fan (14) whose exhaust end is in communication with the interior of the exhaust pipe (13).

4. A gas detector according to claim 1, characterized in that: The front end surface of the detection box (9) is provided with a controller (11), and the bottom surface of the detection box (9) is fixedly connected with two mutually symmetrical supporting bottom blocks (12).

5. A gas detector according to claim 1, characterized in that: The lifting mechanism comprises a bidirectional motor (4) fixedly connected to the upper end surface of the fixing frame (1), and the mesh sizes of the two filter screens (16) inside the square air inlet pipe (6) decrease sequentially from the outside to the inside.

6. A gas detector according to claim 5, characterized in that: The output end of the bidirectional motor (4) is fixedly connected to a threaded rod (5) that penetrates the fixed frame (1) and is rotatably connected to the penetration portion via a bearing; the threaded rod (5) penetrates the movable plate (2) and is threadably connected to the penetration portion.

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