CN216207944U - Flue gas sampling device for flue gas detection - Google Patents

Abstract

The utility model discloses a flue gas sampling device for flue gas detection, which comprises a fixed plate, wherein a plurality of ventilation grooves are formed in the outer wall of the circumference of the fixed plate, an air guiding pipe is fixed at the ventilation groove through a bolt, a fan cover is fixed on the outer side of the air guiding pipe through a bolt, a first sliding groove is formed in the bottom of the inner wall of the air guiding pipe, a first sliding block is connected in the first sliding groove in a sliding mode, a sealing plate is fixed at the top of the first sliding block through a bolt, ventilation parts are arranged on two sides of the air guiding pipe, a clamping mechanism is arranged in the first sliding groove, and an air exhaust mechanism is arranged on the fixed plate. According to the utility model, the mouth of the sampling bottle is inserted into the butt joint groove, the drawing rod is pulled downwards to drive the piston to move downwards to form negative pressure, smoke enters the sampling bottle along the air induction pipe, the sealing plate moves inwards gradually, the smoke is sealed when the sealing plate moves to the inner side of the ventilation part, and the sealing plate seals the air induction pipe under the action of the negative pressure, so that the smoke is effectively prevented from diffusing, and the sampling efficiency is improved.

Description

Flue gas sampling device for flue gas detection

Technical Field

The utility model relates to the technical field of smoke detection, in particular to a smoke sampling device for smoke detection.

Background

At present, the emission of sulfur dioxide and carbon dioxide in China is respectively the first place and the second place in the world. The main reason for serious pollution of the air quality is an energy structure mainly based on coal, and 70 percent of the Chinese power generation industry is coal-fired power generation. The smoke discharged by the coal-fired power plant contains smoke dust, carbon dioxide, sulfur dioxide, nitric oxide and a small amount of carbon monoxide, and the smoke dust directly influences the environmental quality of the atmosphere; along with the continuous development of society, the pollution of flue gas to the air is also getting worse, therefore has more and more important meaning and value to the treatment of flue gas.

Sampling of the flue gas in the flue gas detection process is very important and is an important factor influencing the detection precision; the flue gas sampling device that present flue gas detection used is when taking a sample to the flue gas, is difficult to in time seal the flue gas of sample, leads to the flue gas to scatter and disappear very fast, and sampling efficiency is low, consequently, makes corresponding improvement to this problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a flue gas sampling device for flue gas detection.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a flue gas sampling device that smoke detection used, includes the fixed plate, a plurality of ventilation grooves have been seted up to fixed plate circumference outer wall, and ventilation groove department has the induced duct through the bolt fastening, and the induced duct outside has the fan housing through the bolt fastening, and first spout has been seted up to induced duct inner wall bottom, and sliding connection has first slider in the first spout, and first slider top has the closing plate through the bolt fastening, and the induced duct both sides all are provided with the portion of ventilating, are provided with card fixed establishment in the first spout, are provided with air exhaust mechanism on the fixed plate.

Preferably, the clamping mechanism is provided with a groove in the inner wall of one end of the first sliding groove, a first spring is fixed in the groove through a bolt, a clamping block is fixed at the front end of the first spring through a bolt, the cross section of the clamping block is arc-shaped, and a matched clamping groove is formed in the contact position of the first sliding block and the clamping block.

Preferably, the air exhaust mechanism is communicated with an air exhaust pipe at the bottom of the fixed plate, a piston is arranged in the air exhaust pipe, a pumping rod is clamped at the bottom of the piston, a cover plate is fixed at the bottom of the air exhaust pipe through a bolt, and the pumping rod and the cover plate are arranged in a penetrating mode.

Preferably, a pull rod is fixed on the outer side of the sealing plate through a bolt, and a pull handle is fixed on the outer side of the pull rod through a bolt.

Preferably, a plurality of butt joint grooves are formed in the bottom of the fixing plate and communicated with the ventilation groove, and rubber rings are bonded on the inner walls of the butt joint grooves.

Preferably, the bottom of the fixing plate is fixed with a plurality of mounting plates through bolts, a second chute is formed in the outer side of each mounting plate, a second sliding block is connected in the second chute in a sliding mode, a supporting plate is fixed on the outer side of the second sliding block through bolts, a same second spring is fixed between the second sliding block and the inner wall of the second chute through bolts, and the supporting plate is arranged below the butt joint groove.

The utility model has the beneficial effects that:

1. be provided with the pole of taking out among the device, peg graft the butt joint inslot with the sampling bottle bottleneck, can stimulate the pole of taking out downwards, drive the piston and move down, form the negative pressure, in the flue gas enters into the sampling bottle along the induced duct, the closing plate moves to the inboard side gradually simultaneously, when the closing plate removed to the ventilation portion inboard, the flue gas was sealed, and this moment is under the negative pressure effect, and the closing plate seals the induced duct to effectively prevent the flue gas diffusion, thereby improve sampling efficiency.

2. Be provided with spring coupling's fixture block among the device, can be when the closing plate removes the set position, the spring promotes fixture block and the draw-in groove joint that corresponds, then with the position card of closing plate to improve the fixed effect to the closing plate, thereby strengthen the leakproofness, thereby further prevent the flue gas diffusion, can pull out the closing plate through drawing and reset.

3. Be provided with the layer board in the device, can place the sample bottle on the layer board, under the effect of second spring for the layer board carries out the bearing to the sample bottle and compresses tightly, thereby effectively prevents that the sample bottle from dropping.

Drawings

Fig. 1 is a schematic overall structure diagram of a flue gas sampling device for flue gas detection according to the present invention;

FIG. 2 is a schematic view of the internal structure of an induced draft tube of a flue gas sampling device for flue gas detection according to the present invention;

FIG. 3 is a schematic view of a section structure of an air inducing pipe of the flue gas sampling device for flue gas detection according to the present invention;

fig. 4 is a schematic bottom structure view of a fixing plate of a flue gas sampling device for flue gas detection according to the present invention;

fig. 5 is an enlarged schematic structural diagram of a portion a of a smoke sampling device for smoke detection according to embodiment 2 of the present invention.

In the figure: 1. a fixing plate; 2. an induced draft pipe; 3. a fan housing; 4. a ventilation portion; 5. an air exhaust pipe; 6. drawing a rod; 7. a first chute; 8. a first slider; 9. a sealing plate; 10. a pull rod; 11. pulling a handle; 12. a groove; 13. a first spring; 14. a clamping block; 15. mounting a plate; 16. a second chute; 17. a second slider; 18. a support plate; 19. a second spring; 20. a butt joint groove; 21. a rubber ring; 22. and (7) a cover plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1

Referring to fig. 1-4, a flue gas sampling device for flue gas detection comprises a fixing plate 1, a plurality of ventilation grooves are arranged on the outer wall of the circumference of the fixing plate 1, an air inducing pipe 2 is fixed at the ventilation groove through a bolt, a fan cover 3 is fixed at the outer side of the air inducing pipe 2 through a bolt, a first chute 7 is arranged at the bottom of the inner wall of the air inducing pipe 2, a first slide block 8 is connected in the first chute 7 in a sliding way, a sealing plate 9 is fixed at the top of the first slide block 8 through a bolt, ventilation parts 4 are arranged at both sides of the air inducing pipe 2, a clamping mechanism is arranged in the first chute 7, an air exhaust mechanism is arranged on the fixing plate 1,

according to the utility model, a groove 12 is formed in the inner wall of one end of a first sliding groove 7 of a clamping mechanism, a first spring 13 is fixed in the groove 12 through a bolt, a clamping block 14 is fixed at the front end of the first spring 13 through a bolt, the section of the clamping block 14 is set to be arc-shaped, a matched clamping groove is formed in the contact position of a first sliding block 8 and the clamping block 14, an air suction pipe 5 is communicated with the bottom of a fixing plate 1 of the air suction mechanism, a piston is arranged in the air suction pipe 5, a pull rod 6 is clamped at the bottom of the piston, a cover plate 22 is fixed at the bottom of the air suction pipe 5 through a bolt, the pull rod 6 and the cover plate 22 are arranged in a penetrating mode, a pull rod 10 is fixed on the outer side of a sealing plate 9 through a bolt, a pull handle 11 is fixed on the outer side of the pull rod 10 through a bolt, a plurality of butt joint grooves 20 are formed in the bottom of the fixing plate 1, the butt joint grooves 20 are communicated with ventilation grooves, and rubber rings 21 are bonded on the inner walls of the butt joint grooves 20.

The working principle is as follows: during the use, in inserting the sampling bottle bottleneck to butt joint groove 20, can stimulate down and take out pole 6, drive piston downstream, form the negative pressure, the flue gas enters into the sampling bottle along induced duct 2, closing plate 9 moves to the inboard side gradually simultaneously, when closing plate 9 moves to ventilation portion 4 inboardly, spring 13 promotes fixture block 14 and the draw-in groove joint that corresponds, then with closing plate 9's position card, the flue gas is sealed, this moment under the negative pressure effect, closing plate 9 seals induced duct 2, thereby effectively prevent the flue gas diffusion, thereby improve sampling efficiency, can pull out closing plate 9 through pulling handle 11 and reset.

Example 2

Referring to fig. 1-5, a flue gas sampling device for flue gas detection, a plurality of mounting plates 15 are fixed at the bottom of a fixing plate 1 through bolts, a second chute 16 is formed in the outer side of each mounting plate 15, a second slider 17 is slidably connected in each second chute 16, a supporting plate 18 is fixed on the outer side of each second slider 17 through bolts, a same second spring 19 is fixed between the inner walls of the second slider 17 and the second chute 16 through bolts, and the supporting plate 18 is arranged below a butt-joint groove 20.

The working principle is as follows: during the use, place the sample bottle on layer board 18, under the effect of second spring 19 for layer board 18 carries out the bearing to the sample bottle and compresses tightly, thereby effectively prevents that the sample bottle from dropping.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (6)

1. The utility model provides a flue gas sampling device that smoke detection used, including fixed plate (1), a serial communication port, a plurality of ventilation grooves have been seted up to fixed plate (1) circumference outer wall, ventilation groove department has induced duct (2) through the bolt fastening, there is fan housing (3) in the induced duct (2) outside through the bolt fastening, first spout (7) have been seted up to induced duct (2) inner wall bottom, sliding connection has first slider (8) in first spout (7), bolt fastening has closing plate (9) at first slider (8) top, induced duct (2) both sides all are provided with ventilation portion (4), be provided with card fixed mechanism in first spout (7), be provided with air exhaust mechanism on fixed plate (1).

2. The smoke sampling device for smoke detection according to claim 1, wherein the locking mechanism has a groove (12) formed in an inner wall of one end of the first sliding groove (7), the groove (12) is internally fixed with a first spring (13) through a bolt, a clamping block (14) is fixed at a front end of the first spring (13) through a bolt, a cross section of the clamping block (14) is arc-shaped, and a matching clamping groove is formed at a contact position of the first sliding block (8) and the clamping block (14).

3. The smoke sampling device for smoke detection according to claim 1, wherein the air exhaust mechanism is communicated with an air exhaust pipe (5) at the bottom of the fixing plate (1), a piston is arranged in the air exhaust pipe (5), an air exhaust rod (6) is clamped at the bottom of the piston, a cover plate (22) is fixed at the bottom of the air exhaust pipe (5) through a bolt, and the air exhaust rod (6) and the cover plate (22) are arranged in a penetrating manner.

4. The smoke sampling device for detecting smoke according to claim 1, wherein a pull rod (10) is fixed on the outer side of the sealing plate (9) through a bolt, and a pull handle (11) is fixed on the outer side of the pull rod (10) through a bolt.

5. The smoke sampling device for smoke detection according to claim 1, wherein the bottom of the fixing plate (1) is provided with a plurality of butt joint grooves (20), the butt joint grooves (20) are communicated with the ventilation groove, and the inner wall of the butt joint groove (20) is bonded with a rubber ring (21).

6. The smoke sampling device for smoke detection according to claim 5, wherein a plurality of mounting plates (15) are fixed at the bottom of the fixing plate (1) through bolts, a second sliding groove (16) is formed in the outer side of each mounting plate (15), a second sliding block (17) is connected in the second sliding groove (16) in a sliding mode, a supporting plate (18) is fixed on the outer side of the second sliding block (17) through bolts, a same second spring (19) is fixed between the inner walls of the second sliding block (17) and the second sliding groove (16) through bolts, and the supporting plate (18) is arranged below the butt joint groove (20).

Images