Pumping type multi-gas concentration detector

Abstract

The utility model relates to the technical field of gas detection, and discloses a pump suction type multi-gas concentration detector which comprises a shell, an air pump is fixedly arranged on the front end wall in the shell, a concentration detector body is installed at the top end of the shell through an installation mechanism, an air inlet pipe is fixedly arranged on the rear end wall of the shell, and an air outlet pipe is fixedly arranged on the air inlet pipe. According to the concentration detector, through the arrangement of the installation mechanism, when the concentration detector body is installed, through the cooperative use of an opening, a rectangular ring plate, an installation plate, a clamping hole, a groove body, a telescopic rod, a moving block, a spring, a sliding block, a sliding groove, a clamping column and a handle, the concentration detector body can be conveniently and rapidly installed, and the concentration detector body can be conveniently and rapidly installed. The concentration detector can be conveniently mounted and dismounted when the concentration detector body is damaged, gas detection can be well carried out by arranging the filtering mechanisms, and the situation that the detection result is affected by factors such as impurities and moisture in gas is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to a pump suction type multi-gas concentration detector. Background Technique

[0002] The pump suction type gas detector is an intrinsically safe device that continuously detects the gas concentration in the air by means of pump suction. It uses imported electrochemical sensors, a large-screen Chinese menu (optional without display), a high-power self-priming pump for air extraction, a stainless steel probe with low voltage indication and automatic shutdown after undervoltage, an instrument self-check function at startup, automatic detection of component failures, and rapid preheating with a fast response time. It has a built-in temperature display function and is equipped with an original micro motor, and an external gas sampling pump for the instrument.

[0003] When the existing suction type multi-gas concentration detector is in use, it is not convenient to disassemble and assemble the detector conveniently. When it is damaged, the operation is very inconvenient. When detecting in complex working environments such as inside pipelines, wellheads, and tank bodies, factors such as impurities and moisture in the gas will have a certain impact on the detection results. Therefore, those skilled in the art have provided a pump suction type multi-gas concentration detector to solve the problems raised in the above background technique. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a pump suction type multi-gas concentration detector, which has the advantages of being conveniently disassembled and assembled, dust removal and moisture removal, etc., and solves the above technical problems.

[0005] To achieve the above object, the utility model provides the following technical solution: A pump suction type multi-gas concentration detector, including a housing, a gas pump is fixedly arranged on the front end wall inside the housing, a concentration detector body is installed on the top end of the housing through an installation mechanism, an air inlet pipe is fixedly arranged on the rear end wall of the housing, a filtering mechanism is arranged at the rear of the inside of the air inlet pipe, a dehumidifying mechanism is arranged at the front of the inside of the air inlet pipe, an air outlet pipe is fixedly arranged on the left side wall of the housing, and the concentration detector body is electrically connected to an external alarm;

[0006] The installation mechanism includes: An opening is formed at the rear of the top end of the housing, a rectangular ring plate is fixedly arranged below the inside of the opening, an installation plate is embedded in the inside of the opening, a card hole is formed in the middle of the front end wall of the installation plate, a groove body is formed in the middle of the front of the top end of the housing and above the opening, a telescopic rod is fixedly arranged on the front end wall inside the groove body, a moving block is fixedly arranged at the telescopic end of the telescopic rod, a spring is arranged outside the telescopic rod, sliding blocks are fixedly arranged on both side walls of the moving block, sliding grooves are formed on both side walls inside the groove body, a clamping column is fixedly arranged in the middle of the rear end wall of the moving block, and a handle is fixedly arranged on the top end of the moving block.

[0007] As a preferred technical solution of the present utility model, the mounting plate is adapted to the internal size of the opening, the clamping post is adapted to the internal size of the clamping hole, and both of the sliding blocks are slidably connected to the inside of the two sliding grooves.

[0008] As a preferred technical solution of the present utility model, the filtering mechanism includes: a filter screen plate is fixedly arranged at the rear of the inside of the air inlet pipe, an installation groove is opened at the center of the rear end wall of the filter screen plate, a micro motor is fixedly arranged inside the installation groove, an output end of the micro motor is fixedly provided with a cleaning rod, and a brush is arranged on the front end wall of the cleaning rod.

[0009] As a preferred technical solution of the present utility model, the brush contacts the rear end wall of the filter screen plate.

[0010] As a preferred technical solution of the present utility model, the dehumidifying mechanism includes: a frame body is fixedly connected in front of the filter screen plate through a group of support columns, a through hole is arranged on the rear end wall of the frame body, a heat absorption plate is fixedly arranged in the front of the inside of the frame body, a reaction block is arranged at the rear of the inside of the frame body, a group of heat conduction rods are fixedly arranged on both sides of the heat absorption plate, and one ends of the two groups of heat conduction rods are in contact with the front end wall of the filter screen plate.

[0011] As a preferred technical solution of the present utility model, the reaction block is made of calcium oxide material, and a heat conduction coating is applied to the front end wall of the filter screen plate.

[0012] Compared with the prior art, the present utility model provides a pump suction type multi-gas concentration detector, which has the following beneficial effects:

[0013] 1. By setting the installation mechanism, when installing the concentration detector body, through the cooperation of the opening, rectangular ring plate, mounting plate, clamping hole, groove body, telescopic rod, moving block, spring, sliding block, sliding groove, clamping post and handle, convenient installation and disassembly can be realized when the concentration detector body is damaged.

[0014] 2. By setting the filtering mechanism and the dehumidifying mechanism, during use, through the cooperation of the filter screen plate, installation groove, micro motor, cleaning rod and brush, the impurities in the sucked gas can be filtered, and at the same time, the blockages on the filter screen can be cleaned, which is convenient for the better transportation of gas. During dehumidification, through the cooperation of the support columns, frame body, through hole, heat absorption plate, reaction block and heat conduction rods, the humid gas can be dried and dehumidified, which is convenient for better gas detection, so as to avoid the influence of factors such as impurities and humidity in the gas on the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2Schematic diagram of the internal structure of the intake pipe of the present utility model;

[0017] Figure 3 Schematic diagram of the internal structure of the housing of the present utility model;

[0018] Figure 4 Schematic diagram of the connection structure between the mounting plate and the card hole of the present utility model.

[0019] Wherein: 1. Housing; 2. Air pump; 3. Mounting mechanism; 301. Opening; 302. Rectangular ring plate; 303. Mounting plate; 304. Card hole; 305. Groove body; 306. Telescopic rod; 307. Moving block; 308. Spring; 309. Slide block; 310. Slide groove; 311. Card column; 312. Handle; 4. Concentration detector body; 5. Intake pipe; 6. Filter mechanism; 601. Filter screen plate; 602. Mounting groove; 603. Micro motor; 604. Cleaning rod; 605. Brush; 7. Dehumidifying mechanism; 701. Support pillar; 702. Frame body; 703. Through hole; 704. Heat absorption plate; 705. Reaction block; 706. Heat conducting rod; 8. Exhaust pipe. Specific embodiments

[0020] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0021] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 cannot be understood as a limitation of the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. 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 situations.

[0023] Please refer to Figures 1 - 4, A pump-suction multi-gas concentration detector, comprising: a housing 1, an air pump 2 is fixedly arranged on the front end wall inside the housing 1, a concentration detector body 4 is installed on the top end of the housing 1 through an installation mechanism 3, a rear end wall of the housing 1 is fixedly provided with an air inlet pipe 5, a filtering mechanism 6 is arranged at the rear of the inside of the air inlet pipe 5, a dehumidifying mechanism 7 is arranged at the front of the inside of the air inlet pipe 5, an air outlet pipe 8 is fixedly arranged on the left side wall of the housing 1, and the concentration detector body 4 is electrically connected to an external alarm;

[0024] The installation mechanism 3 includes: an opening 301 is formed at the rear of the top end of the housing 1, a rectangular ring plate 302 is fixedly arranged below the inside of the opening 301, a mounting plate 303 is embedded in the inside of the opening 301, a card hole 304 is formed in the middle of the front end wall of the mounting plate 303, a groove body 305 is formed in the middle of the front of the top end of the housing 1 and located in front of the opening 301, a telescopic rod 306 is fixedly arranged on the front end wall inside the groove body 305, a moving block 307 is fixedly arranged at the telescopic end of the telescopic rod 306, a spring 308 is arranged outside the telescopic rod 306, sliding blocks 309 are fixedly arranged on both side walls of the moving block 307, sliding grooves 310 are formed on both side walls inside the groove body 305, a clamping column 311 is fixedly arranged in the middle of the rear end wall of the moving block 307, and a handle 312 is fixedly arranged on the top end of the moving block 307; the mounting plate 303 is adapted to the inside size of the opening 301, the clamping column 311 is adapted to the inside size of the card hole 304, and both sliding blocks 309 are slidably connected to the inside of both sliding grooves 310.

[0025] Further, during installation, first pull the handle 312 forward, the moving block 307 is forced to move forward, the telescopic rod 306 contracts, the spring 308 is compressed, so that the clamping column 311 moves into the groove body 305, then place the mounting plate 303 on the rectangular ring plate 302 inside the opening 301. At this time, the concentration detector body 4 is located inside the housing 1. After that, release the force applied to the handle 312, and the spring 308 resets, so that the clamping column 311 moves into the inside of the card hole 304, and the concentration detector body 4 can be installed.

[0026] The filtering mechanism 6 includes: a filter screen plate 601 is fixedly arranged at the rear of the inside of the air inlet pipe 5, an installation groove 602 is formed at the center of the rear end wall of the filter screen plate 601, a micro motor 603 is fixedly arranged inside the installation groove 602, a cleaning rod 604 is fixedly arranged at the output end of the micro motor 603, and a brush 605 is formed on the front end wall of the cleaning rod 604; the brush 605 contacts the rear end wall of the filter screen plate 601.

[0027] Further, when the sucked gas passes through the filter screen plate 601, impurities in the gas can be filtered. When cleaning the filter screen plate 601, an external control device controls the operation of the micro motor 603. The micro motor 603 drives the cleaning rod 604 to rotate, and its brush 605 sweeps the rear end wall of the filter screen plate 601, facilitating the better transportation of the gas.

[0028] The dehumidification mechanism 7 includes: a frame body 702 is fixedly connected in front of the filter screen plate 601 through a group of support columns 701. A through hole 703 is provided on the rear end wall of the frame body 702. A heat absorption plate 704 is fixedly arranged in the front of the frame body 702. A reaction block 705 is arranged in the rear of the frame body 702. A group of heat conduction rods 706 are fixedly arranged on both sides of the heat absorption plate 704. One ends of the two groups of heat conduction rods 706 are in contact with the front end wall of the filter screen plate 601. The reaction block 705 is made of calcium oxide material, and the front end wall of the filter screen plate 601 is coated with a heat conduction coating.

[0029] Further, during dehumidification, a part of the sucked gas enters the frame body 702. A large amount of heat is generated when the entering humid gas reacts with the reaction block 705. The heat absorption plate 704 thus absorbs heat and conducts it to the front end wall of the filter screen plate 601 through the two groups of heat conduction rods 706. Since the front end wall of the filter screen plate 601 is coated with a heat conduction coating, the filter screen plate 601 can be heated. When the gas passes through, the humid gas can be dried and dehumidified.

[0030] Working principle: When in use, first pull the handle 312 forward. The moving block 307 is forced to move forward, the telescopic rod 306 contracts, and the spring 308 is compressed, so that the clamping column 311 moves into the groove body 305. Then place the mounting plate 303 on the rectangular ring plate 302 inside the opening 301. At this time, the concentration detector body 4 is located inside the housing 1. Then release the force applied to the handle 312. The spring 308 resets, and then the clamping column 311 moves into the inside of the clamping hole 304, and the concentration detector body 4 can be installed. The air pump 2 operates to achieve air extraction. When the sucked gas passes through the filter screen plate 601, impurities in the gas can be filtered. A part of the sucked gas enters the frame body 702. A large amount of heat is generated when the entering humid gas reacts with the reaction block 705. The heat absorption plate 704 thus absorbs heat and conducts it to the front end wall of the filter screen plate 601 through the two groups of heat conduction rods 706. Since the front end wall of the filter screen plate 601 is coated with a heat conduction coating, the filter screen plate 601 can be heated. When the gas passes through, the humid gas can be dried and dehumidified, so as to prevent factors such as impurities and humidity in the gas from affecting the detection result. When cleaning the filter screen plate 601, an external control device controls the operation of the micro motor 603. The micro motor 603 drives the cleaning rod 604 to rotate, and its brush 605 sweeps the rear end wall of the filter screen plate 601, facilitating the better transportation of the gas. The concentration detector body 4 performs concentration detection. When the detected concentration is high, the external alarm sounds to remind the staff.

[0031] Although the embodiments of the present utility model 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 principle 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. A pump-suction multi-gas concentration detector, comprising a housing (1), characterized in that: An air pump (2) is fixedly arranged on the inner front end wall of the housing (1). A concentration detector body (4) is installed on the top end of the housing (1) through an installation mechanism (3). An air inlet pipe (5) is fixedly arranged on the rear end wall of the housing (1). A filtering mechanism (6) is arranged at the rear of the interior of the air inlet pipe (5), and a dehumidifying mechanism (7) is arranged at the front of the interior of the air inlet pipe (5). An air outlet pipe (8) is fixedly arranged on the left side wall of the housing (1). The concentration detector body (4) is electrically connected to an external alarm. The installation mechanism (3) includes: An opening (301) is formed at the rear of the top end of the housing (1). A rectangular ring plate (302) is fixedly arranged at the lower part of the interior of the opening (301). An installation plate (303) is embedded in the interior of the opening (301). A clamping hole (304) is formed in the middle of the front end wall of the installation plate (303). A groove body (305) is formed in the middle of the top end of the housing (1) and in front of the opening (301). A telescopic rod (306) is fixedly arranged on the inner front end wall of the groove body (305). A moving block (307) is fixedly arranged at the telescopic end of the telescopic rod (306). A spring (308) is arranged outside the telescopic rod (306). Sliders (309) are fixedly arranged on both side walls of the moving block (307). Sliding grooves (310) are formed on both inner side walls of the groove body (305). A clamping column (311) is fixedly arranged in the middle of the rear end wall of the moving block (307). A handle (312) is fixedly arranged on the top end of the moving block (307).

2. The pump suction type multi-gas concentration detector according to claim 1, characterized in that: The installation plate (303) is adapted to the inner size of the opening (301), the clamping column (311) is adapted to the inner size of the clamping hole (304), and the two sliders (309) are both slidably connected to the interiors of the two sliding grooves (310).

3. The pump suction type multi-gas concentration detector according to claim 2, wherein: The filtering mechanism (6) includes: A filter screen plate (601) is fixedly arranged at the rear of the interior of the air inlet pipe (5). An installation groove (602) is formed at the center of the rear end wall of the filter screen plate (601). A micro motor (603) is fixedly arranged in the interior of the installation groove (602). A cleaning rod (604) is fixedly arranged at the output end of the micro motor (603). A brush (605) is formed on the front end wall of the cleaning rod (604).

4. The pump suction type multi-gas concentration detector according to claim 3, characterized in that: The brush (605) is in contact with the rear end wall of the filter screen plate (601).

5. The pump suction type multi-gas concentration detector according to claim 4, characterized in that: The dehumidifying mechanism (7) includes: A frame body (702) is fixedly connected in front of the filter screen plate (601) through a group of support columns (701). A through hole (703) is arranged on the rear end wall of the frame body (702). A heat absorption plate (704) is fixedly arranged at the front of the interior of the frame body (702). A reaction block (705) is arranged at the rear of the interior of the frame body (702). A group of heat conducting rods (706) are fixedly arranged on both sides of the heat absorption plate (704). One ends of the two groups of heat conducting rods (706) are both in contact with the front end wall of the filter screen plate (601).

6. The pump suction type multi-gas concentration detector according to claim 5, characterized in that: The reaction block (705) is made of calcium oxide material, and the front wall of the filter plate (601) is coated with a heat-conducting coating.

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