CN208893664U - A kind of organic solvent gas vacuum recovery system - Google Patents
A kind of organic solvent gas vacuum recovery system Download PDFInfo
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- CN208893664U CN208893664U CN201821527495.3U CN201821527495U CN208893664U CN 208893664 U CN208893664 U CN 208893664U CN 201821527495 U CN201821527495 U CN 201821527495U CN 208893664 U CN208893664 U CN 208893664U
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- valve
- organic solvent
- solvent gas
- vacuum pump
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Abstract
A kind of organic solvent gas vacuum recovery system, including be sequentially connected by pipeline knockout drum, vacuum pump, condenser, receiving tank and turn liquid pump；It is provided with the first valve between the knockout drum and vacuum pump, the second valve is provided between the vacuum pump and condenser；First branch pipeline is provided between the vacuum pump and the first valve, the first branch pipeline is connected to condenser, second branch pipeline is provided between the vacuum pump and the second valve, the second branch pipeline is connected to external pipe, is respectively arranged with third valve and the 4th valve on the first branch pipeline and second branch pipeline.The utility model uses closed system, and minute-pressure contracting is carried out in closed system, realizes and recycles to the room temperature of organic solvent gas.
Description
Technical field
The utility model belongs to Refrigeration Engineering technical field, specially a kind of organic solvent gas vacuum recovery system.
Background technique
Current organic solvent gas recyclable device is all to belong to open type organic solvent gas recyclable device, nothing before vacuum pump
Entrainment separator will be installed filter before some devices, but filter easily blocks, and influences to produce.After some vacuum pumps
Frozen-free device has condensing unit after some vacuum pumps, but needs to be condensed using low temperature chilled water.The former can generate largely
Organic solvent organic solvent gas, either use absorption (by exhaust gas conversion for waste liquid) or burn (RTO burning), all can
Huge pressure, while waste of energy and resource are brought to the environmental protection treatment of rear end.Although the latter has condensing unit, but to cold
The demand for freezing water is huge, while can also generate a certain amount of organic solvent organic solvent gas, however it remains environmental issue, after
It is continuous that there is still a need for use absorption (by exhaust gas conversion for waste liquid) or burn (RTO burning).There is also a safety for open system
There is the possibility flowed backward, can there is very big security risk in problem, air.This is to be related to inflammable and explosive organic solvent industry at present
Use industry common fault and industry problems present in vacuum pump technical process.
Summary of the invention
The utility model technical issues that need to address are to provide a kind of organic solvent gas vacuum recovery system, using closing
Formula system carries out minute-pressure contracting in closed system, realizes and recycles to the room temperature of organic solvent gas.
In order to solve the above technical problems, the technical solution of the utility model embodiment is specific as follows.
A kind of organic solvent gas vacuum recovery system, including the knockout drum, vacuum pump, condensation being sequentially connected by pipeline
Device, receiving tank and turn liquid pump；The first valve is provided between the knockout drum and vacuum pump, between the vacuum pump and condenser
It is provided with the second valve；First branch pipeline is provided between the vacuum pump and the first valve, the first branch pipeline connects
Logical condenser, is provided with second branch pipeline between the vacuum pump and the second valve, the second branch pipeline connection is external
Pipeline is respectively arranged with third valve and the 4th valve on the first branch pipeline and second branch pipeline.
Further, the input end of the receiving tank is provided with exhaust outlet, and the exhaust outlet is connected by third bypass line
External pipe is connect, is provided with counterbalance valve in the third bypass line.
Further, check-valves is provided on the external pipe.
Further, organic solvent gas import is provided on the knockout drum.
Further, first valve, the second valve, third valve and the 4th valve are reversal valve.
Further, cyclone separator is provided in the knockout drum.
Compared with prior art, it is the advantages of the utility model embodiment:
(1) incoagulable gas in vacuum recovery system is excluded by vacuum pump, it is ensured that subsequent recovery organic solvent gas
Purity.
(2) the bottom line discharge (zero-emission) for realizing organic solvent gas, recycles organic solvent gas to the greatest extent
Body raw material solves to have saved resource while environmental issue.
(3) it realizes that micro-positive pressure locks gas by the minute-pressure contracting of vacuum pump, improves the condensation temperature of organic solvent gas, realize
Room temperature condensation, it is energy saving.
(4) it prevents air from flowing backward by the counterbalance valve and check-valves of receiving tank exhaust outlet, prevents the generation of safety accident.
(5) organic solvent gas being separated by knockout drum, the liquid and solid entrainment being had separate,
Vacuum pump is entered back into, protects vacuum pump not block stuck, avoids the safety accident generated due to pump chamber buildup.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of organic solvent gas vacuum recovery system in the utility model embodiment.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, " connection " should be done
It broadly understood, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be directly connected,
The connection inside two elements can also be can be indirectly connected through an intermediary.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
As shown in Figure 1, a kind of organic solvent gas vacuum recovery system, including the separation being sequentially connected by pipeline 200
Tank 100, vacuum pump 400, condenser 500, receiving tank 600 and turn liquid pump 700；It is set between the knockout drum 100 and vacuum pump 400
It is equipped with the first valve 310, the second valve 320 is provided between the vacuum pump 400 and condenser 500；400 He of vacuum pump
First branch pipeline is provided between first valve 310, the first branch pipeline is connected to condenser 500, the vacuum pump 400
And second be provided with second branch pipeline between valve 320, the second branch pipeline is connected to external pipe, the first branch
Third valve 330 and the 4th valve 340 are respectively arranged on pipeline and second branch pipeline.Vacuum is excluded by vacuum pump 400
Incoagulable gas in recovery system, it is ensured that the purity of subsequent recovery organic solvent gas.Turning liquid pump 700 can be by condensation
Organic solvent gas recycling utilizes again.Organic solvent gas vacuum recovery system realizes the bottom line of organic solvent gas
It discharges (zero-emission), recycles organic solvent gas raw material to the greatest extent, solve to have saved resource while environmental issue.Pass through
Micro-positive pressure between the minute-pressure contracting and receiving tank 600 of vacuum pump 400 locks gas, improves the condensation temperature of organic solvent gas, real
Existing room temperature condensation, it is energy saving.
Further, the input end of the receiving tank 600 is provided with exhaust outlet, and the exhaust outlet passes through third bypass line
External pipe is connected, is provided with counterbalance valve 350 in the third bypass line.Micro-positive pressure makes counterbalance valve 350 normally closed and then reaches
To lock gas effect, micro-positive pressure lock gas effect is improved.
Further, air flows backward in order to prevent, prevents the generation of safety accident, is provided with non-return on the external pipe
Valve 360.
Further, organic solvent gas import 110 is provided on the knockout drum 100.
Further, first valve 310, the second valve 320, third valve 330 and the 4th valve 340 are commutation
Valve.
Further, cyclone separator is provided in the knockout drum 100.Knockout drum 100 is according to organic solvent gas
Vacuum recovery system in use the characteristics of, gas generated big using initial stage, 100 internal cyclone separators of knockout drum play
Effect, drop or dust that a large amount of organic solvent gas are carried secretly are fallen by centrifugal force separate, later period gas flow it is small when
It after being failed by whirlwind, is collided by the filler on separator top, baffling removes a small amount of entrainment.Knockout drum simultaneously
Gas purging device is designed on 100, convenient for cleaning and cleaning.
The principle of closed vacuum refrigeration and cold accumulation equipment in order to better understand, below to closed vacuum refrigeration and cold accumulation equipment
Course of work further progress illustrates:
System before the first draw-off pump of vacuum pump 400 (process equipment, preceding condensing unit and pipeline group i.e. before knockout drum 100 and tank
At system) in incoagulable gas, establish pump before system vacuum degree, at this time the first valve 310, the second valve 320 work,
Third valve 330, the 4th valve 340 are closed；Then system incoagulable gas after 400 draw-off pump of vacuum pump, valve transfer at this time,
The first valve 310, the second valve 320 are closed at this time, third valve 330, the work of the 4th valve 340, and system is true after foundation pump
Restore after reciprocal of duty cycle to initial state, the work of organic solvent gas vacuum recovery system open type.It is organic in the whole system course of work
Solvent gas is all to carry out entrainment separation by knockout drum 100, guarantees that vacuum pump 400 is not contaminated；Whole system is all located
Extremely low in the oxygen content concentration in closed state, system, air will not flow backward at any time, prevent using organic solvent gas
There is safety accident in the vacuum system of body.System is in micro-positive pressure system after pump, and the condensation temperature of solvent gas is increased, and becomes
It obtains and more easily condenses, can be cooled down using room temperature cooling water.Turn liquid pump 700 by 600 Liquid level of receiving tank can and
When lime set is produced.Whole process is realized by automatic control.In the establishment process of pump initial vacuum degree, incoagulable gas is compressed
System after to pump；The establishment process of vacuum degree after pump is the received tank 600 of incoagulable gas, condenser 500, valve 330, true
Sky pump 400 arrives the emptying of valve 340 again.
On the other hand, the utility model also provides a kind of organic solvent gas vacuum recovery method, comprising the following steps:
S1, draw-off pump initial vacuum: using the incoagulable gas in system before 400 draw-off pump of vacuum pump, system before pumping is established
Vacuum degree；
Vacuum after S2, draw-off pump: the connection before cutting pumps between system and vacuum pump 400, using 400 draw-off pump of vacuum pump
Incoagulable gas in system afterwards establishes the vacuum degree of system after pump；
S3, by the minute-pressure contracting of the vacuum pump 400 so that micro-positive pressure is formed in condenser 500, so that through being subcooled
The organic solvent gas of condenser 500 is condensed by room temperature.
Go out it should be noted that vacuum pump 400 and condenser 500 are sequentially connected to the organic solvent gas in production equipment
Mouth and organic solvent liquid material inlet, vacuum pump 400 and condenser 500 are used in combination realizes solvent gas under normal temperature conditions
The liquefaction and recycling of body.
Organic solvent gas vacuum recovery method excludes the incoagulable gas in vacuum recovery system by vacuum pump 400,
Ensure the purity of subsequent recovery organic solvent gas.Organic solvent gas vacuum recovery method realizes organic solvent gas
Bottom line discharges (zero-emission), recycles organic solvent gas raw material to the greatest extent, solves to save while environmental issue
Resource.By the minute-pressure contracting of the vacuum pump 400 so that forming micro-positive pressure in condenser 500, organic solvent gas is improved
Condensation temperature realizes room temperature condensation, energy saving.
Further, system includes knockout drum 100 before the pump, is provided with cyclone separator in the knockout drum 100.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this
The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change
And improvement, these changes and improvements are both fallen in the range of the requires of the utility model protection.The utility model requires protection scope
It is defined by the appending claims and its equivalent thereof.
Claims (6)
1. a kind of organic solvent gas vacuum recovery system, it is characterised in that: including the separation being sequentially connected by pipeline (200)
Tank (100), vacuum pump (400), condenser (500), receiving tank (600) and turn liquid pump (700)；The knockout drum (100) and true
It is provided with the first valve (310) between sky pump (400), is provided with the second valve between the vacuum pump (400) and condenser (500)
Door (320)；First branch pipeline, the first branch pipeline are provided between the vacuum pump (400) and the first valve (310)
It is connected to condenser (500), is provided with second branch pipeline between the vacuum pump (400) and the second valve (320), described second
Bypass line is connected to external pipe, is respectively arranged with third valve (330) on the first branch pipeline and second branch pipeline
With the 4th valve (340).
2. organic solvent gas vacuum recovery system according to claim 1, it is characterised in that: the receiving tank (600)
Input end be provided with exhaust outlet, the exhaust outlet connects external pipe, the third bypass line by third bypass line
On be provided with counterbalance valve (350).
3. organic solvent gas vacuum recovery system according to claim 1, it is characterised in that: set on the external pipe
It is equipped with check-valves (360).
4. organic solvent gas vacuum recovery system according to claim 1, it is characterised in that: the knockout drum (100)
On be provided with organic solvent gas import (110).
5. organic solvent gas vacuum recovery system according to claim 1, it is characterised in that: first valve
(310), the second valve (320), third valve (330) and the 4th valve (340) are reversal valve.
6. organic solvent gas vacuum recovery system according to claim 1, it is characterised in that: the knockout drum (100)
Inside it is provided with cyclone separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821527495.3U CN208893664U (en) | 2018-09-18 | 2018-09-18 | A kind of organic solvent gas vacuum recovery system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821527495.3U CN208893664U (en) | 2018-09-18 | 2018-09-18 | A kind of organic solvent gas vacuum recovery system |
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| Publication Number | Publication Date |
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| CN208893664U true CN208893664U (en) | 2019-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821527495.3U Active CN208893664U (en) | 2018-09-18 | 2018-09-18 | A kind of organic solvent gas vacuum recovery system |
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| CN (1) | CN208893664U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108905261A (en) * | 2018-09-18 | 2018-11-30 | 迪茗（上海）智能科技有限公司 | A kind of organic solvent gas vacuum recovery system and method |
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2018
- 2018-09-18 CN CN201821527495.3U patent/CN208893664U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108905261A (en) * | 2018-09-18 | 2018-11-30 | 迪茗（上海）智能科技有限公司 | A kind of organic solvent gas vacuum recovery system and method |
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