CN206424748U - A kind of laboratory exhaust gas cleaning treatment system - Google Patents

Abstract

The utility model discloses a laboratory exhaust gas purification treatment system, which comprises: a body, a poisonous gas detection device is arranged on the top of the body, and a single-chip microcomputer is arranged on one side of the poisonous gas detection device, and the single-chip microcomputer is connected with the body and the poisonous gas detection device respectively. The device is electrically connected; an exhaust hood, the exhaust hood is arranged on one side of the body, the exhaust hood communicates with the air pump in the body through a pipeline, and a clear water pool is fixed below the air pump, and the clear water pool The lower end of the body is provided with a water outlet, the side wall of the clear water pool is provided with a water injection port, and the water injection port passes through the side wall of the body, and the side of the clean water pool away from the water injection port is provided with a lye pool. The utility model removes the acid and soluble gas in the poisonous gas through the filtration reaction of clear water and lye, and finally through the action of the adsorption device, the air in the laboratory is effectively purified, so that the personal safety of the laboratory staff is guaranteed, and at the same time Environmental pollution is avoided.

Description

A laboratory waste gas purification treatment system

technical field

The utility model relates to the technical field of laboratory waste gas purification treatment, in particular to a laboratory waste gas purification treatment system.

Background technique

There are many types of indoor air pollutants in chemical laboratories, with complex components and intermittent emissions. The main air pollutants include organic gases and inorganic gases; organic gases include carbon tetrachloride, methane, ether, ethanethiol, benzene , aldehydes, etc.; inorganic gases include nitric oxide, nitrogen dioxide, hydrogen halide, hydrogen sulfide, sulfur dioxide, etc.; these gases are directly discharged into the atmosphere, which will pollute the environment and aggravate the formation of acid rain, which constitutes a serious social nuisance. If inhaled more, it will cause human poisoning and diseases, and if it is more serious, it will affect the normal work of human organs, leading to organ failure and even death; therefore, laboratory exhaust gas needs to be purified before it can be discharged into the atmosphere.

After searching, the application number: 201620175783.1; the publication number: 205570067U; the name of the invention: a simple laboratory waste gas purification treatment system; it relates to a simple laboratory waste gas purification treatment system, including: an inverted bowl-shaped exhaust hood, a cooler , an air pump, a solenoid valve switch, an absorption pool, an adsorber, a waste liquid collection pool, and pipes connecting them together. The pipeline communicates with the cooler, the other end of the cooler is connected to the suction pump, and the other end of the suction pump is connected to a solenoid valve switch through the pipeline. The solenoid valve switch is provided with a first lead-out end and a second lead-out end. At the bottom, the second lead-out end is connected to the adsorber, and the lye that neutralizes the tail gas is provided in the absorption pool, and the adsorber connected to the second lead-out end is filled with activated carbon, and a third lead-out end, and the third lead-out end is connected to the waste liquid collection pool, and the waste liquid seeped from the adsorber is stored in the waste liquid collection pool. However, the device is operated under manual control and must be switched on and off manually. When the concentration of exhaust gas in the laboratory is low, it still works, resulting in a waste of resources.

Utility model content

The utility model aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, an object of the utility model is to propose a laboratory exhaust gas purification treatment system, which ensures the personal safety of laboratory workers and avoids environmental pollution at the same time.

A laboratory exhaust gas purification treatment system according to an embodiment of the present invention, comprising: a body, a poisonous gas detection device is provided on the top of the body, and a single-chip microcomputer is provided on one side of the poisonous gas detection device, and the single-chip microcomputer is respectively connected to the body, The poisonous gas detection device is electrically connected; the exhaust hood, the exhaust hood is arranged on one side of the body, the exhaust hood communicates with the air pump in the body through a pipeline, and a clear water pool is fixed below the air pump, and the The lower end of the clear water pool is provided with a water outlet, the side wall of the clear water pool is provided with a water injection port, the water injection port passes through the side wall of the body, and the side of the clear water pool away from the water injection port is provided with an lye pool, the alkali The upper side of the liquid pool is provided with an adsorption device, and one side of the adsorption device is provided with an exhaust port, and the exhaust port is directly communicated with the outside atmosphere, and the gas outlet end of the air pump is connected to the clear water pool, the clear water pool and the lye The pool, the lye pool and the adsorption device are all connected through pipelines.

In some embodiments of the present utility model, a dust-proof net is provided on the air extraction hood.

In some other embodiments of the present utility model, the water injection port is provided with a sealing cover, and the water outlet is provided with a flat plug.

In some other embodiments of the present utility model, the toxic gas detection device is connected to various gas detectors wirelessly or wired to realize various gas concentration detection.

In other embodiments of the present utility model, the adsorption device is filled with zeolite, bentonite or activated carbon.

In some other embodiments of the present utility model, the intake pipes of the clean water pool and the lye pool are both arranged below the liquid surface.

The beneficial effect of the utility model is that: the body is provided with a clear water pool, an lye pool and an adsorption device, and when waste gas is generated in the laboratory, the gas detector in the toxic gas detection device detects the concentration of the gas, and sends a signal to the single-chip microcomputer, the single-chip microcomputer Send a start signal to the body, the air pump in the body starts to work, the poisonous gas in the laboratory enters the body from the exhaust hood, the dust-proof net blocks the solid matter on the dust-proof net, and the poisonous gas enters the clean water pool through the pipeline, and the clean water pool can The soluble poisonous gas is dissolved in the clear water tank, and the insoluble poisonous gas is discharged from the clear water tank into the lye pool, and the lye pool reacts with the acid gas in the poisonous gas, and the remaining untreated waste gas enters the adsorption device through the pipeline, and is adsorbed Activated carbon, zeolite, bentonite and other adsorbents in the device can absorb organic and inorganic poisonous gases, and can absorb a large amount of poisonous gases in the device, and finally discharge them into the outside world through the exhaust port. When the concentration of toxic gases in the laboratory decreases, The detector sends a signal to the single-chip microcomputer, and the single-chip microcomputer can control the power of the air pump, or stop working, saving resources, and at the same time, the poisonous gas purification rate can reach more than 85%, bringing a new and harmless working environment to the laboratory staff; the utility model Through the filtration reaction of clean water and lye, the acidic and soluble gases in the poisonous gas are removed, and finally the air in the laboratory is effectively purified through the action of the adsorption device, so that the personal safety of the laboratory staff is guaranteed and the environment is avoided. pollution.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is a schematic structural diagram of a laboratory waste gas purification treatment system proposed by the present invention.

In the figure: 1 body, 2 exhaust hood, 3 clear water tank, 4 water injection port, 5 water outlet, 6 lye tank, 7 adsorption device, 8 exhaust port, 9 poisonous gas detection device, 10 single chip microcomputer, 11 air suction pump.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Examples of the described embodiments are shown in the drawings, wherein like or similar reference numerals designate like or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" The orientation or positional relationship indicated by , "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device Or elements must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

With reference to Fig. 1, a kind of laboratory exhaust gas purification processing system comprises: body 1, the top of body 1 is provided with poisonous gas detection device 9, one side of poisonous gas detection device 9 is provided with single-chip microcomputer 10, the model of single-chip microcomputer 10 is STM32F103, single-chip microcomputer 10 They are electrically connected to the body 1 and the poisonous gas detection device 9 respectively; the exhaust hood 2 is arranged on one side of the body 1, and the exhaust hood 2 communicates with the air pump 11 in the body 1 through a pipeline, and the air pump 11 is below the air pump 11. A clear water pool 3 is fixed, the lower end of the clear water pool 3 is provided with a water outlet 5, the side wall of the clear water pool 3 is provided with a water injection port 4, the water injection port 4 passes through the side wall of the body 1, and the mouth wall of the water injection port 4 is funnel-shaped, which is convenient Injection, clean water pool 3 is provided with lye pool 6 on the side far away from water injection port 4, and the upper side of lye pool 6 is provided with adsorption device 7, and one side of adsorption device 7 is provided with air outlet 8, and air outlet 8 directly Connected with the outside atmosphere, the air outlet of the air pump 11 is connected with the clear water pool 3, the clear water pool 3 and the lye pool 6, the lye pool 6 and the adsorption device 7 through pipelines; External solid particles block the pipeline; the water injection port 4 is provided with a sealing cover, and the water outlet 5 is provided with a flat plug, both of which are used to ensure the airtightness of the body 1; the toxic gas detection device 9 is connected to various gases by wireless or wired Detectors to detect the concentration of various gases to ensure that the concentration of exhaust gas in the laboratory is at a low value; the adsorption device 7 is equipped with high-efficiency adsorbents such as zeolite, bentonite, and activated carbon; The gas pipes are all set below the liquid level to ensure that the gas being transmitted can fully contact the liquid.

The body 1 is provided with a clear water pool 3, an lye pool 6 and an adsorption device 7. When exhaust gas is generated in the laboratory, the gas detector in the toxic gas detection device 9 detects the concentration of the gas, and sends a signal to the single-chip microcomputer 10, and the single-chip microcomputer 10 sends a start The signal is given to the body 1, the air pump 11 in the body 1 starts to work, the poisonous gas in the laboratory enters the body 1 from the exhaust hood 2, the dust-proof net blocks the solid matter on the dust-proof net, and the poisonous gas enters the clear water pool 3 through the pipeline. The clear water tank 3 can dissolve the soluble poisonous gas in the clear water tank 3, and the water-insoluble poisonous gas is discharged from the clear water tank 3 to the lye pool 6, and the lye pool 6 neutralizes the acid gas in the poisonous gas, and the remaining untreated The exhaust gas enters the adsorption device 7 through the pipeline, and the adsorbents such as activated carbon, zeolite, bentonite and the like in the adsorption device 7 can absorb organic and inorganic poisonous gases, and can absorb a large amount of poisonous gases in the device, and finally discharge them into the outside atmosphere through the exhaust port 8. During the period, when the concentration of poisonous gas in the laboratory decreases, the detector sends a signal to the single-chip microcomputer 10, and the single-chip microcomputer 10 can control the power of the air pump 11, or stop working, which saves resources. At the same time, the poisonous gas purification rate can reach more than 85%, which is Laboratory workers bring a new and harmless working environment; the utility model removes the acid and soluble gases in the poisonous gas through the filtration reaction of clean water and lye, and finally purifies the laboratory effectively through the adsorption device 7. Air, so that the personal safety of laboratory staff is guaranteed, while avoiding environmental pollution.

A laboratory exhaust gas purification treatment system, when multiple or one gas detector in the toxic gas detection device 9 detects that the concentration of exhaust gas produced in the laboratory is relatively high, the toxic gas detection device 9 sends a signal to the single-chip microcomputer 10, and the single-chip microcomputer 10 receives the signal and The treatment is sent to the body 1, the air pump 11 in the body 1 starts to run, the exhaust gas enters through the exhaust hood 2, the soluble waste gas is dissolved in the clean water pool 3, and the clean water in the clean water pool 3 can be discharged through the water outlet 5, and it is plugged when it is drained Flat plug, then open the sealing cover on the water injection port 4, pour water inward, close the sealing cover after completion, discharge the gas in the clear water pool 3 into the lye pool 6, and neutralize the acidic substances in the gas, Finally, it enters the adsorption device 7, absorbs the gas that pollutes the environment, and finally discharges it into the atmosphere through the exhaust port 8, thus protecting the ecological environment. When the gas concentration in the laboratory is reduced to a certain value, the single-chip microcomputer 10 controls the body 1 to stop working. It saves energy and advocates the sustainable development strategy proposed by our country.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first feature and the second feature through an intermediary indirect contact. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (6)

1. a kind of laboratory exhaust gas cleaning treatment system, it is characterised in that including：

Body, the top of the body is provided with detection of poison gas device, and the side of the detection of poison gas device is provided with single-chip microcomputer, described Single-chip microcomputer is electrically connected with body, detection of poison gas device respectively；

Draft hood, the pumping is located at the side of body, and the draft hood passes through the aspiration pump UNICOM in pipeline and body, institute State and clear water reserviors are fixed with below aspiration pump, the lower end of the clear water reserviors is provided with delivery port, and the side wall of the clear water reserviors is provided with note The mouth of a river, the water filling port passes through organism sidewall, and side of the clear water reserviors away from water filling port is provided with alkali lye pond, the alkali lye pond Upside is provided with adsorbent equipment, and the side of the adsorbent equipment is provided with exhaust outlet, the exhaust outlet directly with ambient atmosphere UNICOM, institute The outlet side of aspiration pump is stated with clear water reserviors, clear water reserviors and alkali lye pond, alkali lye pond and adsorbent equipment by pipeline UNICOM.

2. a kind of laboratory exhaust gas cleaning treatment system according to claim 1, it is characterised in that：Set on the draft hood There is Air Filter.

3. a kind of laboratory exhaust gas cleaning treatment system according to claim 1, it is characterised in that：Set on the water filling port There is closure, the water outlet is provided with flat plug.

4. a kind of laboratory exhaust gas cleaning treatment system according to claim 1, it is characterised in that：The detection of poison gas dress Put by wirelessly or non-wirelessly connecting all kinds of gas detectors, realize various gas concentration detections.

5. a kind of laboratory exhaust gas cleaning treatment system according to claim 1, it is characterised in that：In the adsorbent equipment Equipped with zeolite, bentonite or activated carbon.

6. a kind of laboratory exhaust gas cleaning treatment system according to claim 1, it is characterised in that：The clear water reserviors and alkali The admission line of liquid pool is each provided at below liquid level.