CN210009763U

CN210009763U - Double-fluid foam dust remover

Info

Publication number: CN210009763U
Application number: CN201920612886.3U
Authority: CN
Inventors: 杨岱霖; 于水军; 赵淑娟; 赵硕; 丁超; 谢高超
Original assignee: Henan University of Technology
Current assignee: Henan University of Technology
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-02-04
Anticipated expiration: 2029-04-30

Abstract

The utility model relates to a double-fluid foam dust remover capable of removing dust and extinguishing fire, which comprises a water tank, a foaming liquid storage tank, a dust concentration detector and a linkage control shared box, wherein the water tank and the foaming liquid storage tank are communicated with a Venturi mixer through respective pipelines and are communicated with a gas-liquid mixer through a pipeline below the Venturi mixer after being mixed in the Venturi mixer, the gas-liquid mixer is also communicated with an air compressor, and the lower part of the gas-liquid mixer is communicated with a mist spray head or a foam gun through a pipeline; the compressed air and the foam mixed liquid from the Venturi mixer are mixed in the gas-liquid mixer and then sprayed out through a mist spray head or a foam gun. The utility model has simple structure, convenient operation, fast foaming speed, high foaming rate and good dust removal effect; the foam prepared by the high-performance double-fluid foam dedusting fire extinguisher has the advantages of uniform and fine foam diameter, rich foam, long air retention time, low bleeding amount and high stability.

Description

Double-fluid foam dust remover

Technical Field

The utility model relates to a foam dust removal field of building and industry fire prevention explosion-proof design, industry ventilation and mine dust removal etc. specific theory discloses a two-fluid foam dust remover that can remove dust and put out a fire.

Background

The coal dust and industrial combustible dust under the coal mine are enriched in the air, which easily causes combustible dust explosion, thereby causing huge property loss and serious casualties. In the prior art, a foam dust collector is often used as dust collection equipment in the fields, the working principle of the existing foam dust collector is mainly to apply the self gravity of dust particles and the characteristics of inertial collision, easy diffusion and the like in the motion process, firstly, water flow from the upper part of the foam dust collector flows to a horizontal porous plate in the foam dust collector to form a water layer, then, lower air flow collides when passing through the upper water layer at a certain flow rate, and a foam layer can be formed on the porous plate after uniform mixing, so that dust can be collected by the foam layer. The disadvantages of this device are: 1. the horizontal perforated plate is not easy to control the level, so that the water layer is not uniformly distributed when the water quantity on the perforated plate is insufficient, and the gas cannot completely pass through the water layer and cannot be effectively purified; 2. the foam dust collector is greatly influenced by temperature, for example, the air output of a compressor is reduced when the temperature is high in summer, the running resistance of the foam dust collector is increased, and therefore the safety performance of the foam dust collector is also reduced. 3. The horizontal perforated plate is easy to block due to various factors such as water quality problem, particle impurities and the like, so that the machine cannot be normally used and needs to be frequently overhauled. 4. The equipment is large in size, complex in structure and not easy to observe inside, and is not beneficial to experimental study of students.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming prior art not enough, providing a two-fluid foam dust remover, this two-fluid foam dust remover is provided with manual and automatic two kinds of modes, has simple structure, convenient operation, and the flexibility is strong, and the security performance is good, and the foaming multiple is high, advantages such as dust removal performance is good. The foam prepared by the double-fluid foam dust collector has the advantages of uniform bubble diameter, abundant bubble quantity, low bleeding rate and high stability. Can be effectively mixed with dust in the air to enlarge the contact area and achieve the aim of dust fall.

The utility model adopts the following technical scheme:

a double-fluid foam dust remover comprises a water tank, a foaming liquid storage tank, a dust concentration detector and a linkage control shared tank, wherein the water tank and the foaming liquid storage tank are communicated with a Venturi mixer through respective pipelines, and are communicated with a gas-liquid mixer through a pipeline below the Venturi mixer after being mixed in the Venturi mixer, the gas-liquid mixer is also communicated with an air compressor, and the lower part of the gas-liquid mixer is communicated with a mist spray head or a foam gun through a pipeline; the compressed air and the foam mixed liquid from the Venturi mixer are mixed in the gas-liquid mixer and then sprayed out through a mist spray head or a foam gun.

A two-position three-way electromagnetic valve is arranged at the outlet of the gas-liquid mixer, and two branches are arranged at the lower end of the electromagnetic valve and are respectively used for connecting the mist spray head and the foam gun; when the double-fluid foam dust remover is in an automatic operation state, the outlet of the two-position three-way electromagnetic valve is connected with a mist spray nozzle; and when the double-fluid foam dust remover is in a manual operation state, the outlet of the two-position three-way electromagnetic valve is connected with a foam gun.

And a water pump, a filter, a pressure gauge and a ball valve are arranged on a pipeline between the water tank and the Venturi mixer, a first one-way valve is arranged on the outer side of the foaming liquid storage tank, and a second one-way valve is arranged on a connecting pipeline between the air compressor and the gas-liquid mixer.

The water pump is an electrically started diesel engine water pump.

The device also comprises a linkage control shared box which is electrically connected with the water pump, the air compressor, the two-position three-way electromagnetic valve and the dust concentration detector and is used for linkage or manual opening and closing of the device.

The foaming liquid storage tank, the first one-way valve, the Venturi mixer and the connecting pipeline thereof form a conveying system a containing foaming agent solution; the inlet of the foam solution delivery system a is connected with the outlet of the water pump 2, and the outlet of the foaming agent solution delivery system a is connected with one inlet of the gas-liquid mixer.

The air compressor, the second one-way valve and the connecting pipeline thereof form a compressed air conveying system b; the outlet of the compressed air supply system b is connected to an inlet of a gas-liquid mixer.

The water tank, the water pump, the filter, the pressure gauge, the ball valve, the Venturi mixer, the gas-liquid mixer and the connecting pipeline thereof form a foam body conveying system c.

Has the beneficial effects that the utility model has the advantages that,

1. the structure is simple, the operation is convenient, the foaming speed is high, the foaming rate is high, and the dust removal effect is good;

2. the foam prepared by the high-performance double-fluid foam dedusting fire extinguisher has the advantages of uniform and fine foam diameter, rich foam, long air retention time, low bleeding amount and high stability;

3. the double-fluid foam dust remover can be used for foam dust removal experiments of courses such as building and industrial fireproof and explosion-proof design, industrial ventilation, mine dust removal and the like, and high-power foam groups with high foaming times, uniform distribution in gas phase, rich and stable foam, long retention time and high dust removal efficiency can be obtained by using the foam dust remover. The development of the foam dust removal device can improve the understanding of students on preventing and controlling combustible dust explosion, so that the students can know the working principle and the specific structure of the foam dust remover, and the foam dust removal device has profound significance for the future learning of the students.

Drawings

Figure 1 is a schematic view of a two-fluid foam precipitator of the present invention.

In fig. 1: 1. the device comprises a water tank, 2. a water pump, 3. a filter, 4. a pressure gauge, 5. a ball valve, 6. a Venturi mixer, 71. a first one-way valve, 72. a second one-way valve, 8. a foaming liquid storage tank, 9. a gas-liquid mixer, 10. an air compressor, 11. a two-position three-way electromagnetic valve, 12. a mist spray head, 13. a foam gun, 14. a dust concentration detector, 15. a linkage control shared tank, a. a foaming agent solution conveying system, b. a compressed air conveying system and c. a foam conveying system.

Detailed Description

The technical solution of the present invention is further described in detail by the following embodiments with reference to the accompanying drawings.

Example 1:

a double-fluid foam dust remover comprises a water tank 1, a foaming liquid storage tank 8, a dust concentration detector 14 and a linkage control shared tank 15, wherein the water tank 1 and the foaming liquid storage tank 8 are communicated with a Venturi mixer 6 through respective pipelines, and are communicated with a gas-liquid mixer 9 through a pipeline below the Venturi mixer 6 after being mixed in the Venturi mixer 6, the gas-liquid mixer 9 is also communicated with an air compressor 10, and the lower part of the gas-liquid mixer 9 is communicated with a mist spray nozzle 12 or a foam gun 13 through a pipeline; the compressed air and the foam mixture from the venturi mixer 6 are mixed in the gas-liquid mixer 9 and then sprayed out through the mist nozzle 12 or the foam gun 13.

A two-position three-way electromagnetic valve 11 is arranged at the outlet of the gas-liquid mixer 9, and two branches are arranged at the lower end of the electromagnetic valve and are respectively used for connecting a mist spray nozzle 12 and a foam gun 13; when the double-fluid foam dust collector is in an automatic operation state, the outlet of the two-position three-way electromagnetic valve 11 is connected with a mist spray nozzle 12; when the double-fluid foam dust collector is in a manual operation state, the outlet of the two-position three-way electromagnetic valve 11 is connected with a foam gun 13.

And a water pump 2, a filter 3, a pressure gauge 4 and a ball valve 5 are arranged on a pipeline between the water tank 1 and the venturi mixer 6, a first one-way valve 71 is arranged on the outer side of the foaming liquid storage tank 8, and a second one-way valve 72 is arranged on a connecting pipeline between the air compressor 10 and the gas-liquid mixer 9.

The first check valve 71 and the second check valve 72 are used to prevent the mixed liquid in the pipe from flowing back. The water pump 2 provides pressure for water flow, the filter 3 can filter larger impurities in water to prevent a pipeline from being blocked by the impurities, the pressure gauge 4 is used for observing the water flow pressure in a water pipe, and the working state of the water pump 12 can be visually detected; the ball valve 5 controls the water flow to be opened and closed, and the water pump 2 is convenient to overhaul.

The water pump 2 is an electric starting diesel engine water pump.

The device also comprises a linkage control shared box 15, wherein the linkage control shared box 15 is electrically connected with the water pump 2, the air compressor 10, the two-position three-way electromagnetic valve 11 and the dust concentration detector 14 and is used for linkage or manual opening and closing of the device.

The foaming liquid storage tank 8, the first one-way valve 71, the Venturi mixer 6 and the connecting pipeline thereof form a conveying system a containing foaming agent solution; the inlet of the foam solution delivery system a is connected with the outlet of the water pump 2, and the outlet of the foaming agent solution delivery system a is connected with one inlet of the gas-liquid mixer 9.

The air compressor 10, the second one-way valve 72 and the connecting pipeline thereof form a compressed air conveying system b; the outlet of the compressed air supply system b is connected to an inlet of a gas-liquid mixer 9.

The foam body conveying system c is composed of the water tank 1, the water pump 2, the filter 3, the pressure gauge 4, the ball valve 5, the Venturi mixer 6, the gas-liquid mixer 9 and connecting pipelines thereof.

In this embodiment, after the water in the water tank and the foaming liquid in the foaming liquid storage tank are mixed in the venturi mixer, the mixture enters the gas-liquid mixer 9 to be mixed with the compressed air in the air compressor, in this embodiment, the device is in an automatic operation state, the outlet of the two-position three-way electromagnetic valve 11 is communicated with the mist nozzle 12, when the linkage control shared box 15 receives a signal sent by the dust concentration detector 14, the water pump 2 and the air compressor 10 are simultaneously started, and the foam is sprayed from the mist nozzle 12.

Example 2:

the same points as those in embodiment 1 are not repeated, except that in this embodiment, when the device is in a manual operation state, the outlet of the two-position three-way electromagnetic valve 11 is communicated with the foam gun 13, and in the manual state, the device can move without receiving the signal transmitted by the dust concentration detector 8. The water pump 2 and the air compressor 10 are started simultaneously by manually pressing a start button of the interlock control combiner box 15, and foam is ejected from the foam gun 13.

Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, and all such modifications and equivalent substitutions are intended to be encompassed by the scope of the following claims.

Claims

1. A dual fluid foam precipitator, comprising: the device comprises a water tank (1), a foaming liquid storage tank (8), a dust concentration detector (14) and a linkage control shared tank (15), wherein the water tank (1) and the foaming liquid storage tank (8) are communicated with a Venturi mixer (6) through respective pipelines, are mixed in the Venturi mixer (6) and then are communicated with a gas-liquid mixer (9) through a pipeline below the Venturi mixer, the gas-liquid mixer (9) is also communicated with an air compressor (10), and the lower part of the gas-liquid mixer (9) is communicated with a mist spray nozzle (12) or a foam gun (13) through a pipeline; the compressed air and the foam mixed liquid coming out of the Venturi mixer (6) are mixed in the gas-liquid mixer (9) and then sprayed out through the mist spray nozzle (12) or the foam gun (13).

2. The dual fluid foam dust collector of claim 1, wherein: a two-position three-way electromagnetic valve (11) is arranged at the outlet of the gas-liquid mixer (9), and two branches are arranged at the lower end of the electromagnetic valve and are respectively used for connecting a mist spray nozzle (12) and a foam gun (13); when the double-fluid foam dust collector is in an automatic operation state, the outlet of the two-position three-way electromagnetic valve (11) is connected with a mist spray nozzle (12); when the double-fluid foam dust collector is in a manual operation state, a foam gun (13) is connected to the outlet of the two-position three-way electromagnetic valve (11).

3. The dual fluid foam dust collector of claim 1, wherein: be equipped with water pump (2), filter (3), manometer (4), ball valve (5) on the pipeline between water tank (1) and venturi mixer (6), the outside of foaming liquid storage tank (8) is equipped with first check valve (71) be equipped with second check valve (72) on the connecting tube of air compressor (10) and gas-liquid mixer (9).

4. The dual fluid foam dust collector of claim 3, wherein: the water pump (2) is an electrically started diesel engine water pump.

5. The dual fluid foam dust collector of claim 3, wherein: the device is characterized by further comprising a linkage control shared box (15), wherein the linkage control shared box (15) is electrically connected with the water pump (2), the air compressor (10), the two-position three-way electromagnetic valve (11) and the dust concentration detector (14) and is used for linkage or manual opening and closing of the device.

6. The dual fluid foam dust collector of claim 3, wherein: the foaming liquid storage tank (8), the first one-way valve (71), the Venturi mixer (6) and the connecting pipeline thereof form a conveying system a containing foaming agent solution; the inlet of the foam solution delivery system a is connected with the outlet of the water pump (2), and the outlet of the foaming agent solution delivery system a is connected with one inlet of the gas-liquid mixer (9).

7. The dual fluid foam dust collector of claim 3, wherein: the air compressor (10), the second one-way valve (72) and the connecting pipeline thereof form a compressed air conveying system b; the outlet of the compressed air supply system b is connected to an inlet of a gas/liquid mixer (9).

8. The dual fluid foam dust collector of claim 3, wherein: the foam body conveying system c is composed of the water tank (1), the water pump (2), the filter (3), the pressure gauge (4), the ball valve (5), the Venturi mixer (6), the gas-liquid mixer (9) and connecting pipelines thereof.