Extraction type gas detection device convenient to maintain

Abstract

The utility model discloses an extraction type gas detection device convenient to maintain, which comprises a mounting plate and a detection mechanism mounted on the surface of the mounting plate, the detection mechanism comprises four gas detectors, a to-be-detected gas inlet pipe, a breather pipe, a vacuum generator and a compressed air inlet pipe, the four gas detectors are detachably mounted on the surface of the mounting plate, the top ends of the gas detectors are connected with to-be-detected gas inlet pipes, the ends of communicating pipes at the bottoms of the gas detectors are connected with breather pipes, and a vacuum generator is fixedly mounted at the bottom end of the surface of the mounting plate; according to the extraction type gas detection device, the traditional situation that the detection mechanism is easily corroded when being mounted in severe environments such as a leachate collecting tank and a leachate gallery is changed, and the detection mechanism is mounted outside; the problem that due to the fact that a detection mechanism is installed in severe environments such as a leachate collecting pool and a leachate gallery, a gas detector is prone to being damaged due to corrosion and damp is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to an extraction type gas detection device which is convenient for maintenance. Background Technique

[0002] A gas detection device is an instrument tool for detecting gas leakage concentration. It mainly uses gas sensors to detect the types of gases existing in the environment. A gas sensor is a sensor used to detect the components and content of gases. In various production and processing, excavation, construction and other sites, the application of gas detection devices is extremely extensive.

[0003] Gas detectors need to be installed in environments such as leachate collection ponds and leachate corridors for gas detection. The gas detectors are long-term installed in harsh environments such as leachate collection ponds and leachate corridors, and are prone to damage due to corrosion and moisture, and are difficult to replace and maintain, which is not conducive to safe and stable operation. Therefore, we propose an extraction type gas detection device which is convenient for maintenance. Content of the Utility Model

[0004] The purpose of the utility model is to provide an extraction type gas detection device which is convenient for maintenance, so as to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: an extraction type gas detection device which is convenient for maintenance, including a mounting plate and a detection mechanism installed on the surface of the mounting plate. The detection mechanism includes a gas detector, a to-be-detected gas inlet pipe, a ventilation pipe, a vacuum generator and a compressed air inlet pipe. There are four gas detectors, and the four gas detectors are detachably installed on the surface of the mounting plate. The top of the gas detector is connected with a to-be-detected gas inlet pipe. The end of the connecting pipe at the bottom of the gas detector is connected with a ventilation pipe. A vacuum generator is fixedly installed at the bottom end of the surface of the mounting plate. The end of the ventilation pipe is connected with the vacuum generator. A compressed air inlet pipe and an air outlet pipe are respectively installed on both sides of the vacuum generator.

[0006] Preferably, four fixing grooves are equidistantly opened at the top end of the surface of the mounting plate. The top end of the gas detector is fixedly connected with a fixing plate. The fixing plate is clamped in the fixing groove. A vertical clamping groove is opened on the inner wall of the fixing groove. A clamping rod is integrally connected to the side of the fixing groove away from the gas detector. The clamping rod is clamped in the clamping groove.

[0007] Preferably, blocking rods are rotatably connected to the outside of the fixing grooves at the top of the mounting plate, and a connecting groove is opened at the end of the blocking rod. Fixing blocks are fixedly connected to the outside of the fixing grooves at the top of the mounting plate. The fixing blocks are clamped inside the connecting groove at the end of the blocking rod. The bottom of the blocking rod contacts the clamping rod and the top of the fixing plate.

[0008] Preferably, the overall structures of the card slot and the card rod are both in a T-shaped structure.

[0009] Preferably, a first flow regulating valve is installed outside one end of the tube for the gas to be measured entering the gas detector, and a second flow regulating valve is installed outside one end of the compressed air inlet tube at the end of the vacuum generator.

[0010] Preferably, countersunk holes are formed at the four corners of the surface of the mounting plate.

[0011] Preferably, one side of the fixing plate located outside the mounting plate is in the same plane as the surface of the mounting plate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The present utility model changes the situation that the traditional detection mechanism is easily corroded when installed in harsh environments such as leachate collection ponds and leachate corridors. Instead, the detection mechanism is installed outside, solving the problem that the gas detector is easily damaged due to corrosion and moisture when installed in harsh environments such as leachate collection ponds and leachate corridors.

[0014] 2. By quickly and detachably installing the gas detector on the mounting plate, the present utility model changes the time-consuming and laborious situation in the past where the gas detector was installed on the mounting plate with multiple screws. The installation and disassembly are convenient and fast, greatly facilitating the maintenance work of the gas detector. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 is a schematic structural diagram of the connection structure between the fixing plate and the fixing groove of the present utility model;

[0017] Figure 3 is a schematic enlarged view structure diagram of part B of the present utility model;

[0018] Figure 4 is a schematic enlarged view structure diagram of part A of the present utility model.

[0019] In the figure: 1, mounting plate; 2, detection mechanism; 3, gas detector; 4, tube for the gas to be measured entering; 5, first flow regulating valve; 6, ventilation pipe; 7, vacuum generator; 8, compressed air inlet tube; 9, second flow regulating valve; 10, outlet pipe; 11, countersunk hole; 12, fixing groove; 13, card slot; 14, fixing plate; 15, card rod; 16, plugging rod; 17, fixing block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-4 , the present invention provides a technical solution: a detachable gas detection device that is convenient for maintenance, including a mounting plate 1 and a detection mechanism 2 installed on the surface of the mounting plate 1. The detection mechanism 2 includes a gas detector 3, a measured gas inlet pipe 4, a ventilation pipe 6, a vacuum generator 7, and a compressed air inlet pipe 8. There are four gas detectors 3, and the four gas detectors 3 are detachably installed on the surface of the mounting plate 1.

[0022] It should be noted that the detection mechanism 2 is installed outside harsh environments such as leachate collection ponds and leachate corridors, avoiding the situation that the gas detector 3 is easily affected by moisture and corroded in harsh environments, and extending the service life of the gas detector 3.

[0023] The top of the gas detector 3 is connected to the measured gas inlet pipe 4. The end of the connecting pipe at the bottom of the gas detector 3 is connected to a ventilation pipe 6. A vacuum generator 7 is fixedly installed at the bottom end of the surface of the mounting plate 1. The end of the ventilation pipe 6 is connected to the vacuum generator 7. Compressed air inlet pipes 8 and an air outlet pipe 10 are respectively installed on both sides of the vacuum generator 7.

[0024] It should be noted that when the utility model is in use, the gas detector 3 in the detection mechanism 2 is installed on the surface of the mounting plate 1. When installing the gas detector 3, first, the clamping rod 15 on the surface of the fixing plate 14 fixed on the gas detector 3 is clamped into the clamping groove 13, so that the fixing plate 14 is clamped inside the fixing groove 12. Then, the plugging rod 16 is rotated to make the fixing block 17 clamped in the connecting groove at the end of the plugging rod 16. Compressed air enters the vacuum generator 7 through the compressed air inlet pipe 8 via the second flow regulating valve 9. The gas to be measured extracted is inhaled into the gas detector 3 through the gas to be measured inlet pipe 4 via the first flow regulating valve 5. The gas detector 3 can detect the concentration of the gas. The detected gas and waste gas enter the vacuum generator 7 through the ventilation pipe 6 for mixing, and the mixed gas is discharged through the outlet pipe 10. Four gas detectors 3 are installed on the mounting plate 1, and four groups of gases can be detected simultaneously. When one of the gas detectors 3 fails, the first flow regulating valve 5 on the gas to be measured inlet pipe 4 at the position of this gas detector 3 can be closed. Then, the plugging rod 16 at the position of this faulty gas detector 3 is rotated to make the fixing block 17 disconnected from the plugging rod 16, and then this faulty gas detector 3 can be directly pulled out upwards, which is convenient for its maintenance work.

[0025] Four fixing grooves 12 are equidistantly opened at the top end of the surface of the mounting plate 1. The top end of the gas detector 3 is fixedly connected with a fixing plate 14, and the fixing plate 14 is clamped in the fixing groove 12. A vertically arranged clamping groove 13 is opened on the inner wall of the fixing groove 12. A clamping rod 15 is integrally connected to the side of the fixing groove 12 far from the gas detector 3, and the clamping rod 15 is clamped in the clamping groove 13.

[0026] It should be noted that this setting facilitates the rapid installation of the gas detector 3 on the mounting plate 1. When installing the gas detector 3, it is only necessary to insert the clamping rod 15 on the mounting plate 1 at the top end of the gas detector 3 into the clamping groove 13 from top to bottom correspondingly, and at the same time, the fixing plate 14 is correspondingly clamped in the fixing groove 12 on the mounting plate 1, so that the gas detector 3 is quickly fixed on the mounting plate 1.

[0027] Plugging rods 16 are rotatably connected to the outside of the fixing grooves 12 at the top of the mounting plate 1, and connecting grooves are opened at the ends of the plugging rods 16. Fixing blocks 17 are fixedly connected to the outside of the fixing grooves 12 at the top of the mounting plate 1, and the fixing blocks 17 are clamped inside the connecting grooves at the ends of the plugging rods 16. The bottom of the plugging rod 16 contacts the top of the clamping rod 15 and the fixing plate 14.

[0028] It should be noted that after the gas detector 3 is installed on the mounting plate 1, when the fixing plate 14 and the clamping rod 15 thereon are subjected to a tensile force at the top, the gas detector 3 can be disassembled. By rotating the plugging rod 16, the connecting groove at the end of the plugging rod 16 is stuck outside the fixing block 17, so that the plugging rod 16 can block the top of the clamping rod 15 and the fixing plate 14, thus ensuring that the gas detector 3 is stably installed on the mounting plate 1.

[0029] The overall structure of the card slot 13 and the clamping rod 15 is in a T-shaped structure.

[0030] It should be noted that the T-shaped structure of the card slot 13 and the clamping rod 15 can stably connect the fixing plate 14 inside the fixing slot 12, thus also ensuring that the gas detector 3 is more stable after installation.

[0031] A first flow regulating valve 5 is installed outside one end of the gas inlet pipe 4 for the gas to be measured, which is located outside the gas detector 3, and a second flow regulating valve 9 is installed outside one end of the compressed air inlet pipe 8, which is located outside the vacuum generator 7.

[0032] It should be noted that the opening and closing and the flow rate of the gas inlet pipe 4 for the gas to be measured can be controlled by the first flow regulating valve 5, and the opening and closing and the flow rate of the compressed air inlet pipe 8 can be controlled by the second flow regulating valve 9.

[0033] Counterbore holes 11 are provided at the four corners of the surface of the mounting plate 1.

[0034] It should be noted that through the arrangement of the counterbore holes 11 on the surface of the mounting plate 1, the mounting plate 1 can be fixedly installed at the selected position of the mounting and detection mechanism 2 through counterbore bolts.

[0035] One side of the fixing plate 14 located outside the mounting plate 1 is in the same plane as the surface of the mounting plate 1.

[0036] It should be noted that after the gas detector 3 is installed on the surface of the mounting plate 1, the surface of the fixing plate 14 is in the same plane as the surface of the mounting plate 1, making the overall appearance more beautiful after installation. At the same time, the gas detector 3 is located on the surface of the mounting plate 1 after installation, making the overall volume smaller and the structure more compact.

[0037] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0038] Furthermore, the terms "first", "second", "third", and "fourth" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", "third", or "fourth" may explicitly or implicitly include at least one such feature.

[0039] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "set", "connected", "fixed", "swiveling connection", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An extractable gas detection device that is convenient for maintenance, characterized in that, It includes a mounting plate (1) and a detection mechanism (2) mounted on the surface of the mounting plate (1). The detection mechanism (2) includes a gas detector (3), a to-be-detected gas inlet pipe (4), a ventilation pipe (6), a vacuum generator (7), and a compressed air inlet pipe (8). There are four gas detectors (3), and the four gas detectors (3) are detachably mounted on the surface of the mounting plate (1). The top end of the gas detector (3) is connected to the to-be-detected gas inlet pipe (4). The end of the connecting pipe at the bottom of the gas detector (3) is connected to the ventilation pipe (6). The vacuum generator (7) is fixedly mounted at the bottom end of the surface of the mounting plate (1). The end of the ventilation pipe (6) is connected to the vacuum generator (7). A compressed air inlet pipe (8) and an air outlet pipe (10) are respectively mounted on both sides of the vacuum generator (7).

2. The extractable gas detection device convenient for maintenance according to claim 1, wherein: Four fixing grooves (12) are equidistantly arranged at the top end of the surface of the mounting plate (1). The top end of the gas detector (3) is fixedly connected to a fixing plate (14). The fixing plate (14) is clamped in the fixing groove (12). A vertical clamping groove (13) is formed in the inner wall of the fixing groove (12). A clamping rod (15) is integrally connected to the side of the fixing groove (12) away from the gas detector (3). The clamping rod (15) is clamped in the clamping groove (13).

3. The extractable gas detection device that is easy to maintain according to claim 2, wherein: Blocking rods (16) are rotatably connected to the outside of the fixing grooves (12) at the top of the mounting plate (1). A connecting groove is formed at the end of the blocking rod (16). Fixing blocks (17) are fixedly connected to the outside of the fixing grooves (12) at the top of the mounting plate (1). The fixing blocks (17) are clamped inside the connecting groove at the end of the blocking rod (16). The bottom of the blocking rod (16) contacts the top of the clamping rod (15) and the fixing plate (14).

4. An extractable gas detection device that is easy to maintain according to claim 2, characterized in that: The overall structure of the clamping groove (13) and the clamping rod (15) is in a T shape.

5. The extractable gas detection device convenient for maintenance according to claim 1, characterized in that: A first flow regulating valve (5) is mounted on the outside of one end of the to-be-detected gas inlet pipe (4) where it is located at the gas detector (3). A second flow regulating valve (9) is mounted on the outside of one end of the compressed air inlet pipe (8) where it is located at the vacuum generator (7).

6. The extractable gas detection device that is easy to maintain according to claim 1, wherein: Counterbored holes (11) are formed at the four corners of the surface of the mounting plate (1).

7. The extractable gas detection device convenient for maintenance according to claim 2, wherein: One side of the fixing plate (14) located outside the mounting plate (1) is in the same plane as the surface of the mounting plate (1).

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