CN114797368B - Energy-saving waste gas purifying equipment for laboratory - Google Patents

Energy-saving waste gas purifying equipment for laboratory Download PDF

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Publication number
CN114797368B
CN114797368B CN202210452781.2A CN202210452781A CN114797368B CN 114797368 B CN114797368 B CN 114797368B CN 202210452781 A CN202210452781 A CN 202210452781A CN 114797368 B CN114797368 B CN 114797368B
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China
Prior art keywords
waste gas
tank
laboratory
communicated
adsorption
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CN202210452781.2A
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Chinese (zh)
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CN114797368A (en
Inventor
黄盼
王译
秦培峰
黄黎
邵东
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Suzhou B&c Lab Equipment Co ltd
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Suzhou B&c Lab Equipment Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D47/00Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/02Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/18Absorbing units; Liquid distributors therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases

Abstract

The invention relates to the technical field of laboratory waste gas treatment and discloses energy-saving waste gas purification equipment for a laboratory, which comprises a shell, wherein a bottom cover is integrally connected with the shell, an exhaust pump is communicated with the top end of the bottom cover, a direct exhaust pipe is communicated with the top end of the exhaust pump, an adsorption box is communicated with the bottom of the right end of the direct exhaust pipe through a first air inlet one-way valve, a liquid box is communicated with the middle part of the right end of the direct exhaust pipe through a second air inlet one-way valve, and a combustion box is communicated with the top of the right end of the direct exhaust pipe through a third air inlet one-way valve. The invention adopts different flow processes or different grades of purification modes according to the cost in the production waste gas, selects three modes according to the actual waste gas components, is favorable for selecting the waste gas purification mode according to the waste gas components, and selects the purification mode according to the components, is favorable for prolonging the service life of the purification materials, and further saves the materials for purifying the waste gas in a laboratory.

Description

Energy-saving waste gas purifying equipment for laboratory
Technical Field
The invention relates to the technical field of laboratory waste gas treatment, in particular to energy-saving laboratory waste gas purifying equipment.
Background
The laboratory is a generic name of various test sites, and can be natural science and technology such as various chemical tests, physical tests, biology and the like, and also can be humanity science.
The existing patent (bulletin number: CN 201710145674.4) and a waste gas purifier for laboratory, the patent can purify the polluted gas generated in the laboratory and reduce the environmental pollution, the three-stage waste gas purifier for laboratory has good purification effect on the volatile gas of chemicals contained in the laboratory through the double functions of water washing and filtering, and the total removal rate of toxic and harmful gas reaches 96 percent and reaches the dischargeable standard; the water washing and the adsorption catalytic filtration are arranged, and have synergistic effect, so that the waste gas in a specific laboratory is better removed, and the purification effect is achieved; meanwhile, the characteristics of the gas object treated by the purifier, namely acid gas which is soluble in water, are fully considered, so that if water with a certain temperature is introduced, the soluble gas in the gas can be easily removed, the gas is adsorbed and catalyzed through the first adsorption layer, the second adsorption layer and the catalyst layer respectively, the effect is good, the adsorption material is inexpensive, and the catalytic metal mesh can not only sterilize, but also play a role of catalytically decomposing the gas and can serve as an ion generator; after the supporting layer is protected by the electrostatic fiber, static electricity is eliminated, larger particles are removed by fiber filtration, and then slightly moist gas is fully catalyzed, decomposed and adsorbed and separated in the catalyst layer and the second adsorption layer under the acceleration of a fan; however, most of the waste gas generated in the laboratory is known to be composed, if the waste gas passes through the three-stage purifier in sequence, a large amount of raw materials are wasted easily, the filtering is lack of successive layers, the adsorbed or liquid absorbed materials are aged rapidly, and the waste gas purifying process in the laboratory can also reflect the amount of residual components in the waste gas.
Therefore, the energy-saving waste gas purifying device for the laboratory is beneficial to selecting a waste gas purifying mode according to waste gas components and selecting a first order of the purifying mode according to the components, is beneficial to prolonging the service life of purifying materials and further saves materials for purifying waste gas in the laboratory.
Disclosure of Invention
The invention aims to provide energy-saving waste gas purifying equipment for a laboratory, which solves the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: an energy-saving waste gas purifying device for a laboratory comprises a shell, wherein the shell is integrally connected with a bottom cover, the top end of the bottom cover is communicated with an exhaust pump, the top end of the exhaust pump is communicated with a straight exhaust pipe, the bottom of the right end of the straight exhaust pipe is communicated with an adsorption tank through a first air inlet one-way valve, the middle part of the right end of the straight exhaust pipe is communicated with a liquid tank through a second air inlet one-way valve, the top of the right end of the straight exhaust pipe is communicated with a combustion tank through a third air inlet one-way valve,
a pressure pump is arranged between the second air inlet one-way valve and the liquid tank, the pressure pump is communicated with the tops of the adsorption tank, the liquid tank and the combustion tank respectively through a three-way pipe, the tops of the liquid tank are communicated with the bottoms of the adsorption tank through a return pipe, the middle part of the return pipe is provided with a return pump, and the tops of the liquid tank are communicated with the combustion tank through an upward floating one-way valve;
the top of the right end of the liquid tank is correspondingly communicated with a water inlet pipe, the tail end of the water inlet pipe is provided with a one-way water inlet valve, the bottom of the right end of the liquid tank is correspondingly communicated with a water outlet pipe, and the tail end of the water outlet pipe is provided with a one-way water outlet valve;
the middle part fixed mounting has the adsorption material in the adsorption tank, adsorption tank air inlet all sets up in the adsorption material below, adsorption tank gas outlet all sets up with the adsorption material top.
As a preferred embodiment of the present invention, the outlet of the pressure pump corresponding to the liquid tank communicating pipeline is positioned at the bottom of the liquid level.
As a preferred embodiment of the invention, the bottom of the left end of the combustion box is provided with an igniter, and the air flow of the air inlet of the combustion box faces the igniter.
As a preferred embodiment of the present invention, the adsorption tank, the liquid tank and the top rear end of the combustion tank are respectively communicated with the rear exhaust pipe through a first exhaust check valve, a second exhaust check valve and a third exhaust check valve.
As a preferred embodiment of the present invention, a control board is provided at the front end of the outer wall of the bottom cover.
Compared with the prior art, the invention has the following beneficial effects:
the invention adopts different flow processes or different grades of purification modes according to the cost in the production waste gas, selects three modes according to the actual waste gas components, is favorable for selecting the waste gas purification mode according to the waste gas components, and selects the purification mode according to the components, is favorable for prolonging the service life of the purification materials, and further saves the materials for purifying the waste gas in a laboratory.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic view showing the overall structure of an energy-saving type exhaust gas purifying apparatus for laboratory of the present invention;
FIG. 2 is a schematic view showing the overall internal structure of the bottom of the energy-saving exhaust gas purifying apparatus for laboratory of the present invention;
FIG. 3 is a schematic view showing the structure of a rear gauntlet of the energy-saving type exhaust gas purifying apparatus for laboratory of the present invention;
FIG. 4 is a schematic view of a return pipe structure of an energy-saving type exhaust gas purifying apparatus for laboratory according to the present invention;
fig. 5 is a schematic diagram showing the structures of an adsorption tank, a liquid tank and a combustion tank of the energy-saving type exhaust gas purifying apparatus for laboratory of the present invention.
In the figure: 1. a housing; 2. a bottom cover; 3. a rear row of tubes; 4. a straight row of pipes; 5. a control board; 6. an exhaust pump; 7. a first intake check valve; 8. a pressure pump; 9. a second air intake check valve; 10. a liquid tank; 11. an igniter; 12. a third air intake check valve; 13. a combustion box; 14. a water inlet pipe; 15. a return pipe; 16. a reflux pump; 17. a water outlet pipe; 18. an adsorption material; 19. a first exhaust check valve; 20. a second exhaust check valve; 21. a third exhaust check valve; 22. an adsorption box; 23. and a floating one-way valve.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention; in the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-5, the present invention provides a technical solution: an energy-saving waste gas purifying device for a laboratory comprises a shell 1, wherein the shell 1 is integrally connected with a bottom cover 2, the top end of the bottom cover 2 is communicated with an exhaust pump 6, the top end of the exhaust pump 6 is communicated with a straight exhaust pipe 4, the bottom of the right end of the straight exhaust pipe 4 is communicated with an adsorption tank 22 through a first air inlet one-way valve 7, the middle part of the right end of the straight exhaust pipe 4 is communicated with a liquid tank 10 through a second air inlet one-way valve 9, the top of the right end of the straight exhaust pipe 4 is communicated with a combustion tank 13 through a third air inlet one-way valve 12,
a pressure pump 8 is arranged between the second air inlet one-way valve 9 and the liquid tank 10, the pressure pump 8 is communicated with the tops of the adsorption tank 22, the liquid tank 10 and the combustion tank 13 respectively through a three-way pipe, the tops of the liquid tank 10 are communicated with the bottoms of the adsorption tank 22 through a return pipe 15, a return pump 16 is arranged in the middle of the return pipe 15 and communicated with the tops of the liquid tank 10 through an upward floating one-way valve 23 and the combustion tank 13;
exhaust gas is pumped out by starting the exhaust pump 6, the exhaust gas enters the adsorption box 22 by opening the first air inlet reversing valve, the exhaust gas is purified by the adsorption material 18, meanwhile, the exhaust gas passing through the adsorption material 18 is pressurized by the pressure pump 8 to be pressed into liquid in the liquid box 10 to be absorbed, then the floating check valve 23 is opened to enable the gas to enter the combustion box 13, combustible components in the exhaust gas can be combusted by the igniter 11, and then the exhaust gas is discharged from the rear exhaust pipe 3 by the third exhaust check valve 21.
In this embodiment, the pressure pump 8 is located at the bottom of the liquid level corresponding to the outlet of the communication pipeline of the liquid tank 10;
pressurization of the gas is accomplished by the pressure pump 8 and the exhaust gas is fed into the liquid in the liquid tank 10.
In this embodiment, the middle part in the adsorption box 22 is fixedly provided with the adsorption material 18, the air inlets of the adsorption box 22 are all arranged below the adsorption material 18, and the air outlets of the adsorption box 22 are all arranged above the adsorption material 18;
the adsorbent material 18 may be selected according to the actual implementation, and the adsorbent material 18 may be replaceable.
In this embodiment, the top of the right end of the liquid tank 10 is correspondingly communicated with a water inlet pipe 14, the tail end of the water inlet pipe 14 is provided with a one-way water inlet valve, the bottom of the right end of the liquid tank 10 is correspondingly communicated with a water outlet pipe 17, and the tail end of the water outlet pipe 17 is provided with a one-way water outlet valve;
external water flow is added into the liquid tank 10 through the water inlet pipe 14, and waste water of the liquid tank 10 is discharged through the water outlet pipe 17.
In the embodiment, the bottom of the left end of the combustion box 13 is provided with an igniter 11, and the air flow of the air inlet of the combustion box 13 faces the igniter 11;
the combustible gas in the exhaust gas is ignited by the igniter 11.
In this embodiment, the rear ends of the tops of the adsorption tank 22, the liquid tank 10 and the combustion tank 13 are respectively communicated with the rear calandria 3 through a first exhaust check valve 19, a second exhaust check valve 20 and a third exhaust check valve 21;
the first exhaust check valve 19, the second exhaust check valve 20 and the third exhaust check valve 21 are connected to the rear gauntlet 3, facilitating the separate exhaust of the adsorption tank 22, the liquid tank 10 and the combustion tank 13.
In this embodiment, a control board 5 is disposed at the front end of the outer wall of the bottom cover 2.
Example 1
When the waste gas contains a high content of combustible gas, the waste gas is pumped out by starting the exhaust pump 6, the waste gas enters the combustion box 13 by opening the third air inlet reversing valve, the igniter 11 is started to burn the combustible gas in the waste gas, and the third exhaust check valve 21 is opened to discharge the waste gas.
Example 2
When the waste gas contains combustible gas with higher content, the waste gas is pumped out by starting the exhaust pump 6, the waste gas enters the combustion box 13 by opening the third air inlet reversing valve, the igniter 11 is started to burn the combustible gas in the waste gas, the burnt waste gas is pressurized and sent into liquid in the box body to be absorbed by liquid by starting the pressure pump 8, granular dust and water-soluble components in the waste gas are purified, the waste gas adsorbed by the liquid enters the bottom of the adsorption box 22 through the return pipe 15 by starting the return pump 16, and the gas is discharged from the rear exhaust pipe 3 by opening the first exhaust check valve 19 through the adsorption material 18.
When the energy-saving laboratory waste gas purifying device is used, the energy-saving laboratory waste gas purifying device comprises a shell and a shell, wherein the shell is provided with a first connecting piece, a second connecting piece and a third connecting piece; 2. a bottom cover; 3. a rear row of tubes; 4. a straight row of pipes; 5. a control board; 6. an exhaust pump; 7. a first intake check valve; 8. a pressure pump; 9. a second air intake check valve; 10. a liquid tank; 11. an igniter; 12. a third air intake check valve; 13. a combustion box; 14. a water inlet pipe; 15. a return pipe; 16. a reflux pump; 17. a water outlet pipe; 18. an adsorption material; 19. a first exhaust check valve; 20. a second exhaust check valve; 21. a third exhaust check valve; 22. an adsorption box; 23. the floating check valve components are all universal standard components or components known to the skilled person, and the structures and principles of the floating check valve components are all known to the skilled person through technical manuals or through routine experimental methods.
When the device is used, the mode and the grade of purifying waste gas can be input into the control board 5 in a programming mode, the control board 5 is used for completing setting, when the waste gas contains combustible gas with higher content, the waste gas is pumped out by starting the exhaust pump 6, the waste gas enters the combustion box 13 through opening the third air inlet reversing valve, the igniter 11 is started to enable the combustible gas in the waste gas to burn, the burnt waste gas is pressurized and sent into liquid which is also wanted in the box to be absorbed by liquid through the starting the pressure pump 8, granular dust in the waste gas and components which are soluble in water are purified, and the waste gas adsorbed by the liquid enters the bottom of the adsorption box 22 through the reflux pipe 15 through the starting the reflux pump 16, so that the gas is discharged from the rear calandria 3 through the first exhaust check valve 19 opened by the adsorption material 18.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (4)

1. The utility model provides an energy-saving exhaust gas purification equipment for laboratory, includes casing (1), casing (1) integral connection has end cover (2), end cover (2) top intercommunication has air suction pump (6), air suction pump (6) top intercommunication has straight calandria (4), straight calandria (4) right-hand member bottom has adsorption case (22) through first check valve (7) intercommunication that admits air, straight calandria (4) right-hand member middle part has liquid case (10) through second check valve (9) intercommunication that admits air, straight calandria (4) right-hand member top has combustion case (13) through third check valve (12) intercommunication, its characterized in that:
a pressure pump (8) is arranged between the second air inlet one-way valve (9) and the liquid tank (10), the pressure pump (8) is respectively communicated with the tops of the adsorption tank (22), the liquid tank (10) and the combustion tank (13) through three-way pipes, the tops of the liquid tank (10) are communicated with the bottoms of the adsorption tank (22) through return pipes (15), a return pump (16) is arranged in the middle of the return pipes (15), and the tops of the liquid tank (10) are communicated with the combustion tank (13) through upward-floating one-way valves (23);
the top of the right end of the liquid tank (10) is correspondingly communicated with a water inlet pipe (14), the tail end of the water inlet pipe (14) is provided with a one-way water inlet valve, the bottom of the right end of the liquid tank (10) is correspondingly communicated with a water outlet pipe (17), and the tail end of the water outlet pipe (17) is provided with a one-way water outlet valve;
the middle part fixed mounting has adsorption material (18) in adsorption tank (22), adsorption tank (22) air inlet all sets up in adsorption material (18) below, adsorption tank (22) gas outlet all sets up with adsorption material (18) top, calandria (3) behind adsorption tank (22), liquid case (10) and combustion case (13) top rear end respectively through first exhaust check valve (19), second exhaust check valve (20) and third exhaust check valve (21) intercommunication.
2. An energy-saving type exhaust gas purifying apparatus for laboratory as claimed in claim 1, wherein: the pressure pump (8) is positioned at the bottom of the liquid level corresponding to the air outlet of the communicating pipeline of the liquid tank (10).
3. An energy-saving type exhaust gas purifying apparatus for laboratory as claimed in claim 1, wherein: the bottom of the left end of the combustion box (13) is provided with an igniter (11), and the air flow of the air inlet of the combustion box (13) faces the igniter (11).
4. An energy-saving type exhaust gas purifying apparatus for laboratory as claimed in claim 1, wherein: the front end of the outer wall of the bottom cover (2) is provided with a control board (5).
CN202210452781.2A 2022-04-27 2022-04-27 Energy-saving waste gas purifying equipment for laboratory Active CN114797368B (en)

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