Chemical waste gas detection device

Abstract

The utility model discloses a chemical waste gas detection device, which belongs to the technical field of chemical waste gas detection equipment, and comprises a sampling gun, the sampling gun consists of a sampling tube, a heating device and a shell, a cleaning rod is fixed outside the sampling gun, a cleaning bag is mounted at the front part of the cleaning rod, and the cleaning bag is connected with the sampling tube. The cleaning bag is used for removing asphalt adhered to the pipe wall of a sampling pipe in the sampling gun, the cleaning rod is hollow, a through hole is formed in the front part of the cleaning rod, and the through hole is communicated with the interior of the cleaning bag. According to the asphalt sampling device, asphalt adhered to the inner wall of the sampling pipe can be cleaned through the cleaning rod with the cleaning bag, and the cleaning bag can be switched between a deflation state and a bulging state, so that the effect that the asphalt enters the sampling pipe firstly and then is cleaned is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical industry waste gas detection equipment technical field especially relates to a chemical industry waste gas detection device. BACKGROUND

[0002] In order to safety early warning, environmental protection standard, process control and production optimization, need to detect chemical industry waste gas, will use pitch smoke sampling gun when detecting waste gas, pitch smoke is pitch in the heating, production and processing process produces one kind by gas, liquid, solid three phases composition, composition extremely complex pollutant, contains multiple toxic and harmful substances.

[0003] Pitch smoke sampling gun when using, pitch smoke enters the sampling tube, there may be because of condensation and adhere to the pipe wall condition when cooling viscous, it is difficult to clean, long-term adhesion accumulation easy to block the sampling tube, affect use. UTILITY MODEL CONTENT

[0004] The utility model discloses a chemical industry waste gas detection device.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A chemical industry waste gas detection device, including sampling gun, the sampling gun is composed of sampling tube, heating device and shell, the sampling gun is fixed with cleaning rod outside, the front portion of cleaning rod is installed with cleaning sac, and the cleaning sac is used for removing pitch adhesion on the pipe wall of sampling tube in sampling gun.

[0007] Further description of the above technical scheme:

[0008] The inside of cleaning rod is hollow, and the front portion of cleaning rod is provided with through hole, and the through hole is in communication with the inside of cleaning sac.

[0009] Further description of the above technical scheme:

[0010] The front end of cleaning rod is equipped with taper head.

[0011] Further description of the above technical scheme:

[0012] The inside of cleaning rod is hollow, and the front portion of cleaning rod is provided with through hole, and the through hole is in communication with the inside of cleaning sac.

[0013] Further description of the above technical scheme:

[0014] The outside of core rod is connected with push plate.

[0015] Further description of the above technical scheme:

[0016] The sampling tube outer fixing sleeve of the sampling gun is provided with a support, the support is composed of a hoop base and an omega-shaped clasp, the hoop base is used for fixing with the sampling tube of the sampling gun, and the omega-shaped clasp is used for clamping the cleaning rod.

[0017] Therefore, the sampling gun has the advantages that:

[0018] In the utility model, the cleaning rod with the cleaning bag can clean the asphalt adhered to the inner wall of the sampling tube, the cleaning bag can be switched between the deflated state and the inflated state, and the effect of entering the sampling tube first and then cleaning is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a whole structure schematic view of the utility model;

[0020] Fig. 2 It is a structure schematic view of the cleaning rod in the utility model;

[0021] Fig. 3 It is an internal structure schematic view of the cleaning rod in the utility model.

[0022] Legend: 1, sampling gun; 2, support; 3, cleaning rod; 4, cleaning bag; 5, cone head; 6, through hole; 7, rubber plug; 8, core rod; 9, push plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] Embodiment: as Figs. 1-3As shown, a chemical waste gas detection device, including sampling gun 1, sampling gun 1 is composed of sampling tube, heating device and shell, the sampling tube of sampling gun 1 adopts double-layer tube wall design, reaches the effect of double-layer insulation, the inner wall of the sampling tube of sampling gun 1 can also be coated with anti-sticking coating, such as tetrafluoroethylene (PTFE) or nanoscale super-hydrophobic coating, which reduces the adhesion of asphalt smoke by using its low surface energy characteristics, further reduces the occurrence of asphalt adhesion, the sampling gun 1 is fixedly provided with a cleaning rod 3, the cleaning rod 3 is the same length as the sampling tube, the front of the cleaning rod 3 is provided with a cleaning capsule 4, the cleaning capsule 4 is used to remove the asphalt adhered to the wall of the sampling tube in the sampling gun 1, the cleaning rod 3 is hollow, and a through hole 6 is formed in the front of the cleaning rod 3, the through hole 6 is in communication with the inside of the cleaning capsule 4, a tapered head 5 is arranged at the front end of the cleaning rod 3, a core rod 8 is slidably arranged in the cleaning rod 3, a rubber plug 7 is connected to the inner end of the core rod 8, and a push plate 9 is connected to the outer end of the core rod 8, the sampling tube of the sampling gun 1 is fixedly provided with a support 2, the support 2 is composed of a clamp type base and an omega-shaped clasp, the clamp type base is used to fix the sampling tube of the sampling gun 1, and the omega-shaped clasp is used to clamp the cleaning rod 3, the cleaning rod 3 with the cleaning capsule 4 can clean the asphalt adhered to the inner wall of the sampling tube, and the cleaning capsule 4 can be switched between deflated and inflated states, so that the effect of entering the sampling tube first and then cleaning is achieved.

[0025] Working principle: when detecting asphalt smoke, the asphalt smoke sampling gun 1 is inserted into the detection port of the exhaust pipe during asphalt production, then the sampling gun 1 is started, the high-temperature asphalt smoke is sucked into the heated sampling tube, first passes through the heated filter membrane in the gun body, the filter membrane intercepts all solid particles and part of the substances, the gas (still containing gaseous asphalt smoke) after passing through the filter membrane enters the subsequent condensation collection device (usually a spiral glass tube or an impact bottle placed in an ice bath), the gas is rapidly cooled here, the gaseous asphalt smoke is condensed into liquid and collected, finally, the gas may pass through an adsorption tube containing XAD-2 resin to capture the last trace of organic matter, after sampling, the filter membrane, condensate and adsorbent need to be taken back to the laboratory, and then subjected to Soxhlet extraction with a specific solvent (such as dichloromethane), then the extract is evaporated, dried and weighed, and finally the total concentration of asphalt smoke is calculated by weight method, the working principle and sampling process belong to the prior art;

[0026] After the asphalt fume sampling gun 1 is used, the cleaning rod 3 clamped on the support 2 is taken off, and then the cleaning rod 3 is inserted into the pipe opening of the sampling tube, wherein during the inserting process, the cleaning bag 4 is in a deflated state, and the conical head 5 at the front end of the cleaning rod 3 can be poked open when meeting thick or blocked asphalt, after the cleaning rod 3 is completely inserted into the sampling tube, the core rod 8 with the rubber plug 7 is pushed into the cleaning rod 3 against the push plate 9, at this time, the gas in the cleaning rod 3 is pushed into the cleaning bag 4, the cleaning bag 4 is inflated until against the inner wall of the sampling tube, then the cleaning rod 3 is pulled outwards, the cleaning bag 4 moves along the inner wall of the sampling tube, and the asphalt adhered to the inner wall of the sampling tube is taken out, so that the cleaning effect is achieved.

[0027] The above merely describes a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, should be covered within the protection scope of the present application.

Claims

1. A chemical waste gas detection device, comprising a sampling gun (1) composed of a sampling tube, a heating device and a shell, characterized in that, The sampling gun (1) is externally fixed with a cleaning rod (3), the front part of the cleaning rod (3) is provided with a cleaning bag (4), and the cleaning bag (4) is used for removing asphalt adhered to the wall of the sampling tube in the sampling gun (1). 2.The chemical waste gas detection device according to claim 1, characterized in that, The cleaning rod (3) is internally hollow, and the front part of the cleaning rod (3) is provided with a through hole (6) in communication with the inside of the cleaning bag (4). 3.The chemical waste gas detection device according to claim 1, characterized in that, The front end of the cleaning rod (3) is provided with a tapered head (5). 4.The chemical waste gas detection device according to claim 1, characterized in that, The cleaning rod (3) is internally slidably provided with a core rod (8), and the inner end of the core rod (8) is connected with a rubber plug (7).

5. The chemical waste gas detection device according to claim 4, characterized in that, The outer end of the core rod (8) is connected with a push plate (9). 6.The chemical waste gas detection device according to claim 1, characterized in that, The sampling tube of the sampling gun (1) is externally fixed with a support (2), the support (2) is composed of a clamping hoop base and an omega-shaped clasp, the clamping hoop base is used for fixing the sampling tube of the sampling gun (1), and the omega-shaped clasp is used for clamping the cleaning rod (3).

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