Industrial waste gas sampling device

Abstract

The utility model discloses an industrial waste gas sampling device, which relates to the technical field of industrial waste gas and comprises a butt joint pipe fixedly connected to the side wall of a breather pipe and communicated with the breather pipe; the threaded cover is connected with the butt joint pipe through threads; the internal threaded pipe is fixedly connected to the threaded cover and is communicated with the threaded cover; external threads are arranged on the outer circumferential wall of the sampling tube, and the sampling tube penetrates through the internal thread tube and is in threaded connection with the internal thread tube through the external threads; the first valve is arranged on the sampling pipe; a pipe body at the opening end of the sampling barrel is in threaded butt joint with the port of the sampling pipe, and the pipe body at the opening end is provided with a second valve; the sealing cover is in threaded connection with the butt joint pipe when sampling is not carried out; the device has the advantages of being convenient to use, capable of sampling gas in the breather pipe and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial waste gas, in particular to an industrial waste gas sampling device. Background Art

[0002] After industrial waste gas is generated, it needs to be treated before it can be discharged into the atmosphere. Industrial waste gas needs to be sampled and tested before and after treatment, so sampling equipment is needed for sampling;

[0003] For example, patent application number CN202322152539.6 discloses a sampling device for industrial waste gas, which starts the vacuum pump body 3 through an external controller. With the cooperation of the suction pipe body 12, the vacuum pump body 3 can perform vacuum operation on the industrial waste gas. When the industrial waste gas enters the second protection box 2 through the suction pipe body 12, the dust and solid particles in the industrial waste gas will be blocked by the filter body 7 and adhere to the surface of the filter body 7, thereby preventing the dust and solid particles from being caused by the operation of the vacuum pump body 3;

[0004] The main drawbacks of this patent in the prior art when used are: the existing industrial waste gas is directly connected to the equipment that generates the waste gas through a pipeline, and the waste gas is in the pipeline. This sampling equipment in the prior art is a ground sampling equipment, and this sampling equipment is not suitable for sampling from the pipeline during use. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an industrial waste gas sampling device to solve the problem that the sampling method of industrial waste gas in the prior art described in the background technology is not suitable for closed pipeline sampling.

[0006] In order to solve the above problems, the utility model provides the following technical solutions: an industrial waste gas sampling device, comprising

[0007] A butt-joint pipe, fixedly connected to the side wall of the vent pipe and communicated with the vent pipe;

[0008] A threaded cover connected to the butt pipe via threads;

[0009] An internal threaded pipe is fixedly connected to the threaded cover and communicated with the threaded cover;

[0010] A sampling tube, with an external thread on its outer circumferential wall, the sampling tube passes through the internal threaded tube and is threadedly connected with the internal threaded tube through the external thread;

[0011] A first valve is disposed on the sampling tube;

[0012] The sampling tube, the tube body at the open end is threadedly connected to the port of the sampling tube, and the tube body at the open end is provided with a second valve;

[0013] The sealing cover is threadedly connected to the butt pipe when no sampling is taking place.

[0014] Preferably: a plurality of rotating rods are fixedly connected to the outer side wall of the sampling tube.

[0015] Preferably, the end of the sampling tube extending into the ventilation pipe is an oblique tube opening.

[0016] Preferably: the end of the sampling tube has a sliding rod sliding through the end, the end of the sliding rod extending into the sampling tube has a movable plate, and the end extending outside the sampling tube has a pulling plate, the movable plate is fixedly connected with an elastic rubber plug, and the rubber plug is in close contact with the inner wall of the sampling tube.

[0017] The beneficial effects of adopting the above technical solution are:

[0018] The present application can connect the butt joint tube set on the ventilation pipe with the threaded cover, so that the sampling tube can enter the ventilation pipe, and the gas in the ventilation pipe can be sampled through the sampling tube through the sampling tube, and the sealing cover can close the butt joint tube when not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a schematic diagram of an industrial waste gas sampling device.

[0020] Figure 2 It is a cross-sectional view of an industrial waste gas sampling device of the utility model.

[0021] Figure 3 It is a schematic diagram of the utility model when no sampling is performed.

[0022] Among them: ventilation pipe 10, docking pipe 20, sealing cover 21, threaded cover 30, internal threaded pipe 31, sampling tube 40, external thread 41, rotating rod 42, first valve 50, sampling tube 60, second valve 61, rubber plug 70, moving plate 71, sliding rod 72, pulling plate 73. DETAILED DESCRIPTION

[0023] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-3 In the first embodiment, an industrial waste gas sampling device includes:

[0025] The butt joint 20 is fixedly connected to the side wall of the vent pipe 10 and communicated with the vent pipe 10;

[0026] The threaded cover 30 is connected to the butt-joint pipe 20 via threads;

[0027] The internal threaded tube 31 is fixedly connected to the threaded cover 30 and communicates with the threaded cover 30;

[0028] The sampling tube 40 has an external thread 41 on its outer circumferential wall, and the sampling tube 40 penetrates the internal threaded tube 31 and is threadedly connected with the internal threaded tube 31 through the external thread 41;

[0029] A first valve 50 is disposed on the sampling tube 40;

[0030] The sampling tube 60, the tube body at the open end is threadedly connected to the port of the sampling tube 40, and the tube body at the open end is provided with a second valve 61;

[0031] The sealing cover 21 is threadedly connected to the butt joint 20 when no sampling is performed.

[0032] This embodiment is implemented as follows:

[0033] When the present application is in use, the sealing cover 30 is first removed, and then the sampling tube 40 is passed through the docking tube 20, and the threaded cover 30 is docked with the docking tube 20, and then the sampling tube 40 is rotated, and the position of the sampling tube 40 extending into the ventilation pipe 10 is adjusted. At this time, the first valve 50 and the second valve 61 are opened, and air is extracted through the sampling tube 60, so that the sampling tube 40 draws the air in the ventilation pipe 10 into the sampling tube 60, thereby realizing sampling. The present application can sample the exhaust gas flowing inside the ventilation pipe 10 on the ventilation pipe 10, and the sampling effect is more significant.

[0034] The advantage of the present application over the prior art is that it is possible to sample the air in the ventilation pipe 10 .

[0035] See also Figure 1 , 2 , a plurality of rotating rods 42 are fixedly connected to the outer wall of the sampling tube 40;

[0036] The rotating rod 42 can facilitate workers to rotate the sampling tube 40 .

[0037] See also Figure 2 , one end of the sampling tube 40 extending into the ventilation tube 10 is an oblique tube opening;

[0038] The end of the sampling tube 40 extending into the ventilation tube 10 is arranged as an oblique tube opening, which can make sampling more convenient.

[0039] See also Figure 1 , 2 The end of the sampling tube 60 has a slide bar 42 that slides through the end. The end of the slide bar 42 that extends into the sampling tube 60 has a moving plate 71, and the end that extends out of the sampling tube 60 has a pulling plate 73. An elastic rubber plug 70 is fixedly connected to the moving plate 71, and the rubber plug 70 is in close contact with the inner wall of the sampling tube 60.

[0040] By pulling the pull plate 73 , the slide bar 42 can be driven to move, the slide bar 42 can drive the movable plate 71 to move, the movable plate 71 can drive the pull plate 73 to move, and the pull plate 73 can drive the rubber stopper 70 to move, thereby achieving gas flow into the sampling tube 60 .

[0041] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An industrial waste gas sampling device, comprising A butt-joint pipe, fixedly connected to the side wall of the vent pipe and communicated with the vent pipe; A threaded cover connected to the butt pipe via threads; An internal threaded pipe is fixedly connected to the threaded cover and communicated with the threaded cover; A sampling tube, with an external thread on its outer circumferential wall, the sampling tube passes through the internal threaded tube and is threadedly connected with the internal threaded tube through the external thread; A first valve is disposed on the sampling tube; The sampling tube, the tube body at the open end is threadedly connected to the port of the sampling tube, and the tube body at the open end is provided with a second valve; The sealing cover is threadedly connected to the butt pipe when no sampling is taking place.

2. An industrial waste gas sampling device according to claim 1, characterized in that: A plurality of rotating rods are fixedly connected to the outer side wall of the sampling tube.

3. The industrial waste gas sampling device according to claim 1, characterized in that: One end of the sampling tube extending into the ventilation pipe is an oblique tube opening.

4. The industrial waste gas sampling device according to claim 1, characterized in that: The end of the sampling tube is provided with a sliding rod which slides through the end. The end of the sliding rod which extends into the sampling tube is provided with a movable plate, and the end which extends out of the sampling tube is provided with a pulling plate. An elastic rubber plug is fixedly connected to the movable plate, and the rubber plug is in close contact with the inner wall of the sampling tube.

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