CN216282860U - Vacuum recovery device for condensing and recovering solvent - Google Patents

Abstract

The utility model discloses a vacuum recovery device for condensing and recovering a solvent, which comprises a vacuum tank, a vacuum pump and a condensation separator, wherein the vacuum tank, the vacuum pump and the condensation separator are communicated through a pipeline, the condensation separator comprises a double-layer tank body, the two tank walls of the tank body are connected with a refrigerating device through a pipeline, a condensing pipe is vertically arranged in the condensation separator, and a gas distribution device is arranged on the condensing pipe and is communicated with the vacuum pump through a pipeline, so that the overflow of gas is greatly reduced, the harm to a human body is prevented, and the atmospheric pollution is reduced.

Description

Vacuum recovery device for condensing and recovering solvent

Technical Field

The utility model relates to the technical field of recovery equipment, in particular to a vacuum recovery device for condensing and recovering a solvent.

Background

With the enhancement of environmental awareness and the requirement of sustainable development of people, the recycling and treatment of VOCs (volatile organic compounds) are more and more emphasized. The volatilization of the VOCs gas exists in various links of production, loading and unloading, storage, canning and the like in the petrochemical industry, such as: refinery, coke-oven plant, PO, PX storage. Because VOCs volatile organic compounds are very volatile in the processes of production, storage, transportation, sale, use and the like, the fixed discharge source of very serious VOCs gas is generated, the resource loss is caused, the potential fire hazard is formed, and meanwhile, the environment is seriously polluted by toxic VOCs gas, so that the health of workers is harmed.

In most of the existing methods for collecting and treating VOCs gas, generated gas is directly introduced into absorption liquid to be absorbed at normal temperature, but the method can only absorb a small amount of gas, is not easy to control when being greatly influenced by environmental temperature, can cause a large amount of gas to overflow to harm personnel safety and cause environmental pollution.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects that the absorption of VOCs gas is not easy to control and the environment pollution is caused by the harm to personnel in the prior art, and provides a vacuum recovery device for condensing and recovering a solvent.

The utility model is realized by the following technical scheme: the utility model provides a vacuum recovery unit for condensation recovery solvent, includes vacuum tank, vacuum pump and condensation separator, through the pipeline intercommunication between vacuum tank, vacuum pump and the condensation separator, the condensation separator includes the double-deck jar of body, be connected with refrigerating plant through the pipeline between the two-layer jar wall of the jar body, the inside of condensation separator is vertical to be provided with the condenser pipe, be provided with the gas distribution device on the condenser pipe, the gas distribution device passes through pipeline and vacuum pump intercommunication.

Further, the gas distribution device is a gas distribution disc which is circular, and a plurality of gas outlet holes are formed in the upper surface and the lower surface of the gas distribution disc.

Further, the diameter of the gas distribution plate is smaller than the inner diameter of the tank body.

Furthermore, a plurality of baffle plates are obliquely arranged on the condensation pipe.

Furthermore, an overflow port is arranged below the gas distribution device on the tank body, the top of the tank body is downwards provided with a cambered surface, and the bottom of the tank body is provided with a discharge valve.

Furthermore, the vacuum pump is a water ring vacuum pump, a liquid injection port is formed in the top of the vacuum pump shell, an air inlet of the vacuum pump is communicated with the upper portion of the vacuum tank through a pipeline, and an air inlet of the vacuum tank is formed in the lower portion of the vacuum tank.

The utility model has the beneficial effects that: the separation blade of setting on the condenser pipe increases the low temperature area with the low temperature diffusion on the condenser pipe for condensation rate for VOCs gaseous can be better collect at jar internal portion, reduce gaseous spilling over, increase the collection effect. The gas that sets up the gas distribution dish when using from the vacuum pump send can be through the comparatively even dispersion of gas distribution dish at internal portion of jar for gas and condenser pipe and the better contact of separation blade, and the separation blade slope sets up, and the liquid of condensing on the separation blade can be along the angle of slope outflow downwards, strengthens the gathering effect, and is less than at the diameter of gas distribution dish the internal diameter of jar body for there is certain clearance between gas distribution dish and the jar body, and the liquid of being convenient for after condensing flows to jar body bottom, improves the collection effect, and the gaseous excessive of having significantly reduced prevents to produce harm, reduces the atmospheric pollution.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of an air distribution device of the present invention;

wherein: 1. a vacuum tank; 2. a vacuum pump; 201. a liquid injection port; 3. a tank body; 301. a gas distribution plate; 302. a condenser tube; 303. a baffle plate; 304. a water outlet; 305. a water inlet; 4. an overflow port; 401. a discharge valve; 402. and (4) exhausting the valve.

Detailed Description

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1-2: a vacuum recovery device for condensing and recovering a solvent comprises a vacuum tank 1, a vacuum pump 2 and a condensation separator, wherein the vacuum tank 1 is communicated with the condensation separator through a pipeline, the vacuum tank 1 is communicated with a space for generating VOCs gas through a pipeline when in use, gas is collected by negative pressure in the vacuum tank 1 when in use, and the gas can be more active under a low-pressure state, the gas is sucked into the vacuum tank 1 for temporary storage and is led into the condensation separator through the vacuum pump 2, wherein the vacuum pump 2 is a water ring vacuum pump 2, a liquid injection port 201 is formed in the top of a shell of the vacuum pump 2, working liquid in the vacuum pump 2 can use oil, toluene, acetic acid or alcohol and the like when in use, different working liquids are used according to different components of the VOCs, the gas is firstly subjected to elementary solution dissolution by utilizing the principle of similar intermiscibility, prevent that gas between the different components and work also produce chemical reaction and produce the harm to vacuum pump 2 to set up the cavitation protection pipe on the casing of vacuum pump 2, protect vacuum pump 2 and reduce the harm that the cavitation produced.

The air inlet of the vacuum pump 2 is communicated with the upper part of the vacuum tank 1 through a pipeline, the air inlet of the vacuum tank 1 is arranged at the lower part of the vacuum tank 1, the air inlet of the vacuum tank 1 is arranged at the lower part, and the particulate impurities brought by gas are reduced to enter the vacuum pump 2, so that the vacuum pump has a further filtering effect.

The condensation separator comprises a double-layer tank body 3, two layers of tank walls of the tank body 3 are connected with a refrigerating device through a pipeline, the refrigerating device is a water cooling machine, cooling circulation is formed between the tank bodies 3, a low-temperature environment is formed in the tank body 3, a water inlet 305 of the tank body is arranged at the bottom of mansion, a water outlet 304 is arranged at the upper part, and the flooding type cooling effect is better and the efficiency is higher. The lower the temperature inside the tank 3, the lower the saturated vapor pressure of the VOCs, and further the more gas is liquefied and condensed inside the tank 3, and collected at the bottom of the tank 3. At condensation separator's the vertical condenser pipe 302 that is provided with in inside, the slope is provided with a plurality of separation blades 303 on the condenser pipe 302, the condenser pipe 302 that sets up when gas gets into jar body 3 inside and passes the refrigerant to jar body 3 inside, the separation blade 303 that sets up on the condenser pipe 302 increases the low temperature area with the low temperature diffusion on the condenser pipe 302, accelerate the rate of condensation, make that VOCs gas can be better collect at jar body 3 inside, reduce gaseous spilling over, increase the collection effect. And be provided with the gas distribution device on condenser pipe 302, the gas distribution device passes through the pipeline and communicates with vacuum pump 2, the gas distribution device is gas distribution disc 301, gas distribution disc 301 is the ring form, gas distribution disc 301's upper surface and lower surface all are provided with a plurality of ventholes, it can be inside 3 through the comparatively even dispersion of gas distribution disc 301 from vacuum pump 2 when using to set up gas distribution disc 301, make gas and condenser pipe 302 and the better contact of separation blade 303, and separation blade 303 slope sets up, the liquid of condensing on separation blade 303 can be along the angle of slope downwards outflow, reinforcing gathering effect, and be less than the internal diameter of jar body 3 at the diameter of gas distribution disc 301, make there is certain clearance between gas distribution disc 301 and the jar body 3, the liquid after the condensation flows to jar body 3 bottom, improve the collection effect. An overflow port 4 is arranged below the gas distribution device on the tank body 3, the overflow port 4 is arranged to enable collected liquid to gradually flow out from the overflow port 4 for centralized collection, the overflow port 4 is also arranged at a certain height from the bottom so as to enable the liquid formed after liquefaction with a slight difference to be mixed and not to generate a large difference in a short time period, the collection quality is improved, the top of the tank body 3 is downwards arranged to be an arc surface which enables the condensed liquid to be conveniently gathered and drip downwards and quickens the collection efficiency, a discharge valve 401 is arranged at the bottom of the tank body 3, the liquid collected inside the tank body 3 is completely discharged when the whole device is stopped for use, the subsequent use is convenient, a discharge valve 402 is arranged on the side wall of the upper part of the tank body 3, the discharge valve 402 can be used for connecting a plurality of tank bodies 3 in series, so that harmful gas can be collected step by step when the device is used, the inside liquid that can also use of follow-up jar body 3 of establishing ties carries out the immersive absorption, and very big enhancement collection efficiency and collection effect have prevented that gaseous excessive from producing harm, the reduction atmosphere pollution to the human body.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims (6)

1. The utility model provides a vacuum recovery unit for condensation recovery solvent, includes vacuum tank, vacuum pump and condensation separator, through the pipeline intercommunication, its characterized in that between vacuum tank, vacuum pump and the condensation separator: the condensation separator comprises a double-layer tank body, the two layers of tank walls of the tank body are connected with a refrigerating device through pipelines, a condensation pipe is vertically arranged in the condensation separator, and a gas distribution device is arranged on the condensation pipe and communicated with a vacuum pump through a pipeline.

2. The vacuum recovery device for condensing recovery solvent according to claim 1, wherein: the gas distribution device is a gas distribution disc which is circular, and a plurality of gas outlet holes are formed in the upper surface and the lower surface of the gas distribution disc.

3. The vacuum recovery apparatus for condensing recovery solvent according to claim 2, wherein: the diameter of the gas distribution plate is smaller than the inner diameter of the tank body.

4. The vacuum recovery device for condensing recovery solvent according to claim 1, wherein: a plurality of baffle plates are arranged on the condensing pipe in an inclined mode.

5. The vacuum recovery device for condensing recovery solvent according to claim 1, wherein: an overflow port is arranged below the gas distribution device on the tank body, the top of the tank body is downwards provided with a cambered surface, and the bottom of the tank body is provided with a discharge valve.

6. The vacuum recovery device for condensing recovery solvent according to claim 1, wherein: the vacuum pump is a water ring vacuum pump, a liquid injection port is formed in the top of the vacuum pump shell, an air inlet of the vacuum pump is communicated with the upper portion of the vacuum tank through a pipeline, and an air inlet of the vacuum tank is formed in the lower portion of the vacuum tank.

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