CN218885560U

CN218885560U - Waste gas sampling device

Info

Publication number: CN218885560U
Application number: CN202222915820.6U
Authority: CN
Inventors: 林熙宁
Original assignee: Individual
Current assignee: Shanghai Shengrong Industrial Technology Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-04-18
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses a waste gas sampling device relates to waste gas sampling technical field. The utility model comprises a conversion tube and a sampling tube; the sampling tube comprises a tube body and a connecting tube connected with one end of the tube body, a piston is arranged in the tube body, a pull rod is connected onto the piston, an inner thread is arranged on the inner wall of one end, away from the connecting tube, of the tube body, and a threaded cylinder is matched with the inner thread of the connecting tube. The utility model discloses a take the sampling tube at hand earlier and look upright the scale, then rotatory screw thread section of thick bamboo, make the screw thread section of thick bamboo be close to piston one end to the predetermined scale position department that corresponds of bleeding, then be connected connecting pipe and conversion union coupling, then open first valve and drive the piston through the pulling pull rod and slide extraction waste gas, slide to when blockking by the screw thread section of thick bamboo when the piston, then extract quantitative waste gas, then close first valve, taking off the sampling tube from the conversion pipe, avoid the sampling tube to take off the back, waste gas passes through the connecting pipe and mixes with the air on every side in the sampling tube, and then can only take off the sampling tube and take off waste gas.

Description

Waste gas sampling device

Technical Field

The utility model belongs to the technical field of the waste gas sample, especially, relate to a waste gas sampling device.

Background

In many industrial processes, exhaust gas is generated, and in order to investigate the recycling value of the exhaust gas or the degree of damage of the exhaust gas, it is necessary to analyze or detect the components of the exhaust gas.

The utility model discloses a be CN213148475U patent application, disclose a waste gas sampling device, including change-over pipe and sampling tube, the change-over pipe includes two connectors and connects the memory metal pipe between two connectors, one of them the connection of the connector other end is equipped with the ring flange, the ring flange is kept away from connector one side and is equipped with and inserts the ring with connector matched with, evenly be equipped with a plurality of threaded rods on the ring flange lateral wall of inserting the ring periphery, the cooperation is equipped with lock nut on the screwed pipe, the sampling tube includes the body and connects the connecting pipe in body one end, the connecting pipe passes through threaded connection with the connector of keeping away from the insert ring, be equipped with the piston in the body, the piston is kept away from connecting pipe one side and is equipped with the stand pipe, the body is worn to the stand pipe other end, is close to be equipped with the valve on the connector of ring flange. Compared with the prior art, the utility model the advantage lies in: reasonable structure, convenient use and operation and labor saving.

And the waste gas sampling device who discloses in this application, when pulling piston extraction ration waste gas when extracting waste gas, stop the piston to the assigned position in order to reach accurate ration wayward, after sampling tube (2) and transition pipe separation, waste gas and ambient air come to the heart in the sampling tube, easily mix with ambient air, pollute the waste gas sample.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waste gas sampling device has solved XXX's technical problem.

In order to achieve the purpose, the utility model is realized by the following technical proposal:

an exhaust gas sampling device comprises a conversion pipe and a sampling pipe;

the sampling tube comprises a tube body and a connecting tube connected with one end of the tube body, a piston is arranged in the tube body, a pull rod is connected onto the piston, an inner thread is arranged on the inner wall of one end, away from the connecting tube, of the tube body, a threaded cylinder is matched with the inner thread of the connecting tube, the outer side, close to the piston, of the threaded cylinder is a smooth curved surface, scales are arranged on the outer side of the tube body along the length direction, a first valve is arranged on the connecting tube, and the conversion tube is matched with the connecting tube.

Optionally, the threaded cylinder has a plurality of projections extending from the body in a circumferential array.

Optionally, the switching tube includes a memory metal tube and two connectors respectively connected to two ends of the memory metal tube.

Optionally, the other end of one of the connectors is connected with a flange, and the connecting pipe is connected with the other connector through threads.

Optionally, one side of the flange plate, which is far away from the connector, is provided with an insertion ring matched with the connector, a plurality of threaded rods are uniformly arranged on the side wall of the flange plate at the periphery of the insertion ring, and locking nuts are arranged on the threaded rods in a matched manner.

Optionally, a rubber gasket is provided outside the insert ring.

The embodiment of the utility model has the following beneficial effect:

the utility model discloses an embodiment is through taking the sampling tube at hand first and looking the scale, then rotatory screw thread section of thick bamboo, make the screw thread section of thick bamboo be close to piston one end to predetermined corresponding scale position department of bleeding, then be connected connecting pipe and change-over union coupling, then open first valve and drive the piston through the pulling pull rod and slide and extract waste gas, slide when blockking by the screw thread section of thick bamboo when the piston, then extract quantitative waste gas, then close first valve, taking off the sampling tube from the change-over union, avoid the sampling tube to take off the back, waste gas passes through the connecting pipe and mixes with the surrounding air in the sampling tube, and then can only take off the sampling tube and take off waste gas.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic view of a sampling tube according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a switching tube according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

the sampling device comprises a conversion tube 1, a sampling tube 2, a flange 3, an insert ring 4, a connector 5, a memory metal tube 6, a threaded rod 7, a locking nut 8, a tube body 9, a connecting tube 10, a piston 11, a pull rod 12, a second valve 13, a threaded barrel 15, a projection 151 and a first valve 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

Referring to fig. 1-3, in the present embodiment, an exhaust sampling device is provided, which includes: a conversion tube 1 and a sampling tube 2;

sampling tube 2 includes body 9, the connecting pipe 10 of connecting body 9 one end, the diameter of body 9 is greater than the diameter of connecting pipe 10, body 9 and the mutual coincidence of axis of connecting pipe 10, be equipped with piston 11 in the body 9, be connected with pull rod 12 on the piston 11, body 9 is kept away from the inner wall of connecting pipe 10 one end and is equipped with the internal thread, connecting pipe 10 screw-thread fit has threaded cylinder 15, threaded cylinder 15 is close to the piston 11 one end outside and is smooth curved surface, threaded cylinder 15 is close to the laminating of piston 11 one end outside and body 9 inner wall, threaded cylinder 15 is close to the piston 11 one end outside and is equipped with the mark line, the body 9 outside is equipped with the scale along length direction, be equipped with first valve 16 on the connecting pipe 10, change-over tube 1 cooperatees with connecting pipe 10.

Through taking sampling tube 2 in hand the front view scale earlier, then rotatory screw thread section of thick bamboo 15, make screw thread section of thick bamboo 15 be close to piston 11 one end to predetermined corresponding scale position department of bleeding, then be connected connecting pipe 10 and converting tube 1, then open first valve 16 and drive piston 11 through pulling pull rod 12 and slide and draw waste gas, when piston 11 slides to being blockked by screw thread section of thick bamboo 15, then draw quantitative waste gas, then close first valve 16, taking sampling tube 2 off from converting tube 1, avoid sampling tube 2 to take off the back, waste gas passes through connecting pipe 10 and ambient air mixing in the sampling tube 2, and then can only take off sampling tube 2 and take off waste gas.

The threaded cylinder 15 of this embodiment stretches out 9 one end circumference arrays of body and has a plurality of lugs 151, be convenient for rotate threaded cylinder 15 through lug 151, change-over pipe 1 includes memory metal pipe 6, connect respectively at the two connectors 5 at memory metal pipe 6 both ends, one of them 5 other ends of connector are connected and are equipped with ring flange 3, connecting pipe 10 passes through threaded connection with another connector 5, be equipped with second valve 13 on the connector 5 that is close to ring flange 3, ring flange 3 keeps away from connector 5 one side and is equipped with and inserts ring 4 with connector 5 matched with, evenly be equipped with a plurality of threaded rods 7 on the 3 lateral walls of ring flange of inserting ring 4 periphery, the cooperation is equipped with lock nut 8 on the threaded rod 7, insert ring 4 outside and be equipped with rubber packing pad.

The working principle is as follows: one side of a sampling hole is connected with a flange for fixing, a threaded rod 7 on a flange plate 3 is inserted into a fixing hole of the flange of the sampling hole when the sampling pipe is used, then locking and fixing are carried out through a locking nut 8, an insertion ring 4 is inserted to be attached to the inner wall of the sampling hole at the moment, a sealing effect is achieved through a rubber sealing gasket, the sampling pipe 2 is taken in a hand to be calibrated, then a threaded cylinder 15 is rotated, the threaded cylinder 15 is made to be close to one end of a piston 11 to a position corresponding to a preset air suction scale, then a connecting pipe 10 is connected with a conversion pipe 1, a second valve 13 is opened, gas enters the conversion pipe 1, through the characteristics of a memory metal pipe 6, the position and the angle of the sampling pipe 2 can be adjusted according to different positions of the sampling hole, the sampling pipe 2 is adjusted to the horizontal position or the position of a guide pipe 12 facing downwards, therefore when the gas enters the sampling pipe 2, the piston 11 is pushed more easily, then the first valve 16 is opened, the piston 11 is driven to slide to extract the waste gas by pulling the pull rod 12, when the piston 11 slides to be blocked by the threaded cylinder 15, then quantitative waste gas is extracted, the first valve 16 is closed, the air is taken out of the conversion pipe 2, and the sampling pipe 2, and the waste gas is prevented from the lower part of the sampling pipe 2 and is prevented from the sampling pipe 2 and then from the sampling pipe 2 and mixed gas is prevented from the sampling pipe 2.

It should be noted that all the electric devices referred to in this application may be powered by a storage battery or an external power source.

The above embodiments may be combined with each other.

The present invention is not limited to the above embodiments, and any person should learn the structural changes made under the teaching of the present invention, all fall within the protection scope of the present invention.

The technology, shape and construction parts which are not described in detail in the present invention are all known technology.

Claims

1. An exhaust gas sampling device, comprising: a conversion tube (1) and a sampling tube (2);

sampling tube (2) are including body (9), connecting pipe (10) of connecting body (9) one end, be equipped with piston (11) in body (9), be connected with pull rod (12) on piston (11), connecting pipe (10) one end inner wall is kept away from in body (9) is equipped with the internal thread, connecting pipe (10) interior screw-thread fit has threaded cylinder (15), threaded cylinder (15) are close to piston (11) one end outside and are smooth curved surface, the body (9) outside is equipped with the scale along length direction, be equipped with first valve (16) on connecting pipe (10), change-over tube (1) cooperatees with connecting pipe (10).

2. An exhaust gas sampling device according to claim 1, wherein the threaded barrel (15) has a plurality of projections (151) arranged circumferentially at one end extending out of the tubular body (9).

3. An exhaust gas sampling device according to claim 2, wherein the switching tube (1) comprises a memory metal tube (6), and two connectors (5) respectively connected to both ends of the memory metal tube (6).

4. An exhaust gas sampling device according to claim 3, wherein the other end of one of the connectors (5) is provided with a flange (3) and the connecting tube (10) is connected to the other connector (5) by a screw thread.

5. An exhaust gas sampling device according to claim 4, characterized in that the flange (3) is provided with an insert ring (4) which is fitted with the connector (5) on the side away from the connector (5), a plurality of threaded rods (7) are uniformly arranged on the side wall of the flange (3) on the periphery of the insert ring (4), and the threaded rods (7) are fitted with locking nuts (8).

6. An exhaust gas sampling device according to claim 5, wherein the insert ring (4) is externally provided with a rubber gasket.