CN211284277U - Handle device of marsh gas micro-component absorption regeneration tail gas - Google Patents

Abstract

The utility model discloses a deal with marsh gas micro-component and adsorb device of regeneration tail gas, retrieve jar, washing jar including adsorption tank, analytic gas, adsorption tank one side is provided with analytic gas retrieves the jar, analytic gas is retrieved the jar and is kept away from adsorption tank one side is provided with the washing jar, the adsorption tank with between the analytic gas recovery jar analytic gas retrieve the jar with be connected with the connecting pipe between the washing jar, be provided with the ooff valve on the connecting pipe. The utility model solves the problem of environmental pollution caused by gas-separating pollutants, and simultaneously, after the gas-separating is condensed or washed, the residual gas can be recycled and used as the source of inert gas when the adsorption device is regenerated, the cost of buying emotional gas again is reduced by recycling, the environmental protection problem is eliminated comprehensively, and the production and operation cost is reduced; the mode of condensing in the process of the front section of regeneration and washing in the process of the middle section and the rear section is adopted, so that the power consumption of the whole device is reduced.

Description

Handle device of marsh gas micro-component absorption regeneration tail gas

Technical Field

The utility model relates to a gas purification field especially relates to a handle device that marsh gas micro-component adsorbs regeneration tail gas.

Background

The methane is an important biomass energy source, and the main component of the methane also contains impurities such as carbon dioxide, hydrogen sulfide, saturated steam and the like.

However, the biogas has few researches on several types of pollutants, such as semi-volatile organic compounds (SVOCs), Volatile Organic Compounds (VOCs) and siloxane.

The boiling point of SVOCs is 240-400 ℃, the saturated vapor pressure is low, the adsorbability is strong, the SVOCs are stable in the environment and are not easy to degrade, and the SVOCs are called semi-volatile organic matters;

VOCs, which are organic compounds that typically contain one or more carbon atoms and have high vapor pressures, are readily vaporized into the atmosphere. There are thousands of compounds that meet this definition, but 50 to 150 compounds containing 2 to 12 carbon atoms are most common. Common VoC are BTX (a mixture of benzene, toluene and xylene), methylene chloride and trichloroethylene, among others.

The siloxane is an organosilicon compound containing a triple bond si-0-si triple bond structure, and the polysiloxane is a chain, ring or net-shaped high molecular compound polymerized by a plurality of monomers containing the structural bond, and is generally called as silicone. It is structurally characterized by that it contains a basic skeleton formed from alternatively-arranged silicon and oxygen atoms, every silicon atom is connected with organic gene.

In the prior art, a recyclable device for adsorbing trace components of biogas does not mention a treatment mode of desorption gas with pollutants generated in a regeneration process, wherein SVOCs and VOCs are main sources of biogas malodor and have great harm to human bodies, and the desorption can cause great influence on surrounding environment and residents, so the desorption gas also needs to be treated;

when the condensation method is adopted to treat the pollutants, the low-temperature condensation efficiency depends on the temperature, but the low-temperature removal efficiency is high, the higher the pollutant concentration is, the higher the low-temperature purification efficiency is, but the cost for reducing the temperature of the high-temperature inert gas is high;

if the washing method is adopted to treat the pollutants, the removal efficiency is low, but the cost is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide a device for treating methane micro-component adsorption regeneration tail gas.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a device for treating methane micro-component adsorption regeneration tail gas comprises an adsorption tank, a desorption gas recovery tank and a washing tank, wherein the desorption gas recovery tank is arranged on one side of the adsorption tank, the washing tank is arranged on one side of the desorption gas recovery tank, a connecting pipe is connected between the adsorption tank and the desorption gas recovery tank and between the desorption gas recovery tank and the washing tank, a switch valve is arranged on the connecting pipe, a raw material pipe is connected to the lower end of the adsorption tank, a raw material input valve is arranged on the raw material pipe, a high-temperature inert gas inlet pipe is arranged above the raw material pipe, an air inlet valve is arranged on the high-temperature inert gas inlet pipe, a purified methane output pipe is arranged at the upper end of the adsorption tank, a purified output valve is arranged on the purified methane output pipe, a cooling dryer is arranged on the rear side of the desorption gas recovery tank, and the cooling dryer is communicated with the desorption gas recovery tank through a pipeline, the utility model discloses a washing tank, including the gas recovery jar, the gas recovery jar lower extreme is provided with the waste liquid discharge pipe, install the discharge valve on the waste liquid discharge pipe, gas recovery jar upper end is provided with the first recovery pipe of inert gas, be provided with first output valve on the first recovery pipe of inert gas, the washing jar lower extreme is connected with the sewage discharge pipe, be provided with the sewage discharge valve on the sewage discharge pipe, washing jar upper end is provided with the inert gas second recovery pipe, install the second output valve on the inert gas second recovery pipe, the inlet tube is installed washing jar upper end.

Further setting: an adsorbent is arranged in the adsorption tank, and the adsorption tank is filled with the adsorbent.

According to the arrangement, the adsorbent is a regenerable adsorbent, and can specifically adsorb pollutants such as VOCs, SVOCs and siloxane through the raw material methane in the adsorption tank, so that the purification effect is achieved.

Further setting: the raw material pipe with the adsorption tank welding, raw materials input valve with raw material pipe threaded connection.

So set up, the welding improves raw materials pipe with fastness and leakproofness that the adsorption tanks are connected.

Further setting: and the high-temperature inert gas inlet pipe is welded with the adsorption tank.

So set up, the welding guarantees the leakproofness of high temperature inert gas admission pipe with the adsorption tanks.

Further setting: the first inert gas recovery pipe is welded with the analytic gas recovery tank, and the waste liquid discharge pipe is welded with the analytic gas recovery tank.

So set up, make the first recovery tube of inert gas, waste liquid discharge pipe with analyze the gas recovery jar firm in connection.

Further setting: the water inlet pipe is communicated with a water source, and water in the water inlet pipe is uniformly sprayed in the washing tank.

So set up, make even spraying of cooling water in the wash tank is abundant to be contacted with the solution gas.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model solves the subsequent treatment problem of the entrained pollutant in the desorbed gas, and provides two solutions which can be selected according to the design requirement and the actual situation;

2. pollutants such as VOCs, SVOCs, siloxane and the like after treatment are in a liquid state form, so that the pollutants can be conveniently used as hazardous waste or sewage for subsequent treatment;

3. compared with the method of directly discharging the desorption gas, the utility model solves the problem of environmental pollution caused by desorption gas pollutants, and simultaneously, after the desorption gas is condensed or washed, the residual gas can still be recycled and used as the source of inert gas when the adsorption device is regenerated, so that the cost of buying emotional gas again is reduced by recycling, the environmental protection problem is comprehensively eliminated, and the production and operation cost is reduced;

4. the mode of condensing in the process of the front section of regeneration and washing in the process of the middle section and the rear section is adopted, so that the power consumption of the whole device is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is an isometric view of a device for treating biogas micro-component adsorption regeneration tail gas according to the present invention;

FIG. 2 is another schematic structural diagram of the device for treating biogas micro-component adsorption regeneration tail gas according to the present invention;

fig. 3 is a top view of the device for treating methane micro-component adsorption regeneration tail gas according to the present invention.

The reference numerals are explained below:

1. an adsorption tank; 2. a raw material pipe; 3. a raw material input valve; 4. high-temperature inert gas enters the pipe; 5. an intake valve; 6. a purified biogas output pipe; 7. a purge output valve; 8. a connecting pipe; 9. an on-off valve; 10. a resolved gas recovery tank; 11. a cold dryer; 12. a first inert gas recovery pipe; 13. a first output valve; 14. a waste liquid discharge pipe; 15. a discharge valve; 16. a sewage discharge pipe; 17. a sewage discharge valve; 18. a second inert gas recovery pipe; 19. a second output valve; 20. a water inlet pipe; 21. and (5) washing the tank.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be further explained with reference to the accompanying drawings:

as shown in figures 1-3, a device for disposing methane micro-component adsorption regeneration tail gas comprises an adsorption tank 1, a desorption gas recovery tank 10 and a washing tank 21, wherein the desorption gas recovery tank 10 is arranged on one side of the adsorption tank 1, the desorption gas is condensed and recovered, the washing tank 21 is arranged on one side of the desorption gas recovery tank 10, which is far away from the adsorption tank 1, the desorption gas is washed and recovered, a connecting pipe 8 is connected between the adsorption tank 1 and the desorption gas recovery tank 10 and between the desorption gas recovery tank 10 and the washing tank 21, a switch valve 9 is arranged on the connecting pipe 8, a raw material pipe 2 is connected to the lower end of the adsorption tank 1, raw material methane is introduced into the adsorption tank 1, a raw material input valve 3 is arranged on the raw material pipe 2, a high-temperature inert gas inlet pipe 4 is arranged above the raw material pipe 2, an air inlet valve 5 is arranged on the high-temperature inert gas inlet, a purified output valve 7 is installed on a purified biogas output pipe 6, a cool drying machine 11 is arranged on the rear side of a desorption gas recovery tank 10, the cool drying machine 11 is communicated with the desorption gas recovery tank 10 through a pipeline, a waste liquid discharge pipe 14 is arranged at the lower end of the desorption gas recovery tank 10, a discharge valve 15 is installed on the waste liquid discharge pipe 14, an inert gas first recovery pipe 12 is arranged at the upper end of the desorption gas recovery tank 10, a first output valve 13 is arranged on the inert gas first recovery pipe 12, a sewage discharge pipe 16 is connected to the lower end of a washing tank 21, a sewage discharge valve 17 is arranged on the sewage discharge pipe 16, an inert gas second recovery pipe 18 is arranged at the upper end of the washing tank 21, a second output valve 19 is installed on the inert gas second recovery pipe 18, and a water inlet pipe 20 is installed at the.

Preferably: an adsorbent is arranged in the adsorption tank 1, the adsorption tank 1 is filled with the adsorbent, the adsorbent is a renewable adsorbent, and pollutants such as VOCs, SVOCs and siloxane are absorbed by the adsorbent through the raw material methane in the adsorption tank 1 in a targeted manner, so that the purification effect is achieved; the raw material pipe 2 is welded with the adsorption tank 1, the raw material input valve 3 is in threaded connection with the raw material pipe 2, and the welding improves the firmness and the sealing property of the connection of the raw material pipe 2 and the adsorption tank 1; the high-temperature inert gas inlet pipe 4 is welded with the adsorption tank 1, and the welding ensures the sealing property of the high-temperature inert gas inlet pipe 4 and the adsorption tank 1; the inert gas first recovery pipe 12 is welded with the analysis gas recovery tank 10, and the waste liquid discharge pipe 14 is welded with the analysis gas recovery tank 10, so that the inert gas first recovery pipe 12, the waste liquid discharge pipe 14 and the analysis gas recovery tank 10 are firmly connected; the water inlet pipe 20 is communicated with a water source, and water in the water inlet pipe 20 is uniformly sprayed in the washing tank 21, so that cooling water is uniformly sprayed in the washing tank 21 and is fully contacted with the analysis gas.

The utility model discloses theory of operation and use flow: raw material methane enters an adsorption tank 1 through a raw material pipe 2, and pollutants such as VOCs, SVOCs, siloxane and the like are adsorbed in a targeted manner through the aperture size of a renewable adsorbent in the adsorption tank 1, so that the purification effect is achieved; purified methane is output through a purified methane output pipe 6, when absorbent adsorbates are treated, a raw material input valve 3 and a purification output valve 7 are closed, high-temperature inert gas enters a pipe 4 and enters an adsorption tank 1 of a reproducible absorbent through high-temperature inert gas, the pollutants are changed into gas state from liquid state or solid state by utilizing the characteristic that the boiling points of the pollutants are all less than 400 ℃, the inert gas is taken out of the adsorption tank 1 through a connecting pipe 8 and enters a desorption gas recovery tank 10, thereby completing the regeneration of the absorbent, when the pollutants entrained by the high-temperature inert gas are output from the adsorption tank 1, the temperature is not high, the pollutant concentration of the desorption gas entrainment is high, at the moment, the pollutants such as VOCs, OCs and siloxane which are carried by the desorption gas entrainment gas are condensed to the normal temperature by a cold dryer 11, the pollutants are condensed into the liquid state, and the condensed and separated condensed liquid is collected through a waste liquid discharge pipe 14 according to the standard of dangerous waste, the inert gas is sent to a dangerous waste treatment factory for treatment, so that the emission of the three pollutants is avoided, and the inert gas is recycled through the inert gas first recycling pipe 12 so as to be convenient for use in next adsorbent regeneration; then in the middle and final stages of the regeneration process, the concentration of pollutants carried by the analytic gas is low, the pollutant enters a washing tank 21, the analytic gas is flushed by introducing water through a water inlet pipe 20, the pollutants carried by the analytic gas are cooled to be liquid and then are carried out with water, the discharged water is used as sewage and sent to a sewage treatment plant for treatment, the gas with the pollutants removed is recycled, and the regenerated tail gas can be treated by adopting the two modes, so that the direct discharge of the pollutants in the methane is avoided.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims (6)

1. The utility model provides a handle device of marsh gas micro-component absorption regeneration tail gas which characterized in that: comprises an adsorption tank (1), a desorption gas recovery tank (10) and a washing tank (21), wherein one side of the adsorption tank (1) is provided with the desorption gas recovery tank (10), the desorption gas recovery tank (10) is far away from one side of the adsorption tank (1) is provided with the washing tank (21), the adsorption tank (1) and the desorption gas recovery tank (10) are connected with a connecting pipe (8) therebetween, the connecting pipe (8) is provided with a switch valve (9), the lower end of the adsorption tank (1) is connected with a raw material pipe (2), the raw material pipe (2) is provided with a raw material input valve (3), a high-temperature inert gas inlet pipe (4) is arranged above the raw material pipe (2), the high-temperature inert gas inlet pipe (4) is provided with an air inlet valve (5), the upper end of the adsorption tank (1) is provided with a purified methane output pipe (6), a purified output valve (7) is mounted on the purified biogas output pipe (6), a refrigeration dryer (11) is arranged on the rear side of the analysis gas recovery tank (10), the refrigeration dryer (11) is communicated with the analysis gas recovery tank (10) through a pipeline, a waste liquid discharge pipe (14) is arranged at the lower end of the analysis gas recovery tank (10), a discharge valve (15) is mounted on the waste liquid discharge pipe (14), an inert gas first recovery pipe (12) is arranged at the upper end of the analysis gas recovery tank (10), a first output valve (13) is arranged on the inert gas first recovery pipe (12), a sewage discharge pipe (16) is connected to the lower end of the washing tank (21), a sewage discharge valve (17) is arranged on the sewage discharge pipe (16), an inert gas second recovery pipe (18) is arranged at the upper end of the washing tank (21), and a second output valve (19) is mounted on the inert gas second recovery pipe (18), a water inlet pipe (20) is installed at the upper end of the washing tank (21).

2. The device for treating biogas micro-component adsorption regeneration tail gas as claimed in claim 1, wherein: an adsorbent is arranged in the adsorption tank (1), and the adsorption tank (1) is filled with the adsorbent.

3. The device for treating biogas micro-component adsorption regeneration tail gas as claimed in claim 1, wherein: raw materials pipe (2) with adsorption tank (1) welding, raw materials input valve (3) with raw materials pipe (2) threaded connection.

4. The device for treating biogas micro-component adsorption regeneration tail gas as claimed in claim 1, wherein: and the high-temperature inert gas inlet pipe (4) is welded with the adsorption tank (1).

5. The device for treating biogas micro-component adsorption regeneration tail gas as claimed in claim 1, wherein: the inert gas first recovery pipe (12) is welded with the analysis gas recovery tank (10), and the waste liquid discharge pipe (14) is welded with the analysis gas recovery tank (10).

6. The device for treating biogas micro-component adsorption regeneration tail gas as claimed in claim 1, wherein: the water inlet pipe (20) is communicated with a water source, and water in the water inlet pipe (20) is uniformly sprayed in the washing tank (21).

Images