CN209612499U - Vent gas washing system in composite heat transfer - Google Patents
Vent gas washing system in composite heat transfer Download PDFInfo
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- CN209612499U CN209612499U CN201920084994.8U CN201920084994U CN209612499U CN 209612499 U CN209612499 U CN 209612499U CN 201920084994 U CN201920084994 U CN 201920084994U CN 209612499 U CN209612499 U CN 209612499U
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- transfer line
- wash cycle
- inlet
- cycle slot
- washing
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Abstract
The utility model provides the vent gas washing system in a kind of composite heat transfer, including Venturi scrubber, scrubbing tower, wash cycle slot, slag acid tank, cleaning circulation pump and slag acid pump；After wash cycle slot inlet is by the second transfer line and slag acid pump, it is connected to the leakage fluid dram of slag acid tank；Wash cycle slot leakage fluid dram is connected to the inlet of cleaning circulation pump by third transfer line；The leakage fluid dram of cleaning circulation pump is connected to the inlet of Venturi scrubber.Advantage are as follows: (1) to the tail gas in composite heat transfer, carry out once washing in Venturi scrubber, carry out secondary washing in the first transfer line, carry out gas-liquid separation in scrubbing tower, improve the washing effect to tail gas；(2) reach the cleaning solution in the wash cycle slot of certain standard to degree of neutralization by slag acid tank to replace, it ensure that the effect of the washing tail gas of the cleaning solution in wash cycle slot, also the phenomenon that crystallization is precipitated and leads to line clogging in cleaning solution is avoided, ensure that the smooth safe operation of washing process.
Description
Technical field
The utility model belongs to tail gas disposal technique field, and in particular to the washing tail gas system in a kind of composite heat transfer
System.
Background technique
Compound fertilizer has many advantages, such as that nutrient is comprehensive, physical behavior is good, accessory ingredient is few, has no adverse effects, and obtains in China
It is extensive to use.Compound fertilizer in process of production, such as is granulated, dries, and can all generate a large amount of process tail gas.In the prior art,
Directly tail gas is directly discharged in environment, to cause serious environmental pollution.
Utility model content
In view of the defects existing in the prior art, the utility model provides the vent gas washing system in a kind of composite heat transfer,
It can effectively solve the above problems.
The technical solution adopted in the utility model is as follows:
The utility model provides the vent gas washing system in a kind of composite heat transfer, including Venturi scrubber (1), washing
Tower (2), wash cycle slot (3), slag acid tank (4), cleaning circulation pump (P1) and slag acid pump (P2)；
The top of the Venturi scrubber (1) is equipped with air inlet (1-1) and inlet (1-2)；The Venturi scrubbing
The lower part of device (1) is equipped with Venturi scrubber discharge gate；The Venturi scrubber discharge gate passes through the first transfer line (G1)
It is connected to the inlet of the scrubbing tower (2)；The top of the scrubbing tower (2) is equipped with exhaust outlet (2-1)；The scrubbing tower (2)
Bottom be scrubbing tower leakage fluid dram (2-2), the scrubbing tower leakage fluid dram (2-2) is connected to the feed liquor of the wash cycle slot (3)
Mouthful；
The wash cycle slot (3) has wash cycle slot leakage fluid dram and wash cycle slot inlet；The wash cycle
After slot inlet is by the second transfer line (G2) and slag acid pump (P2), it is connected to the leakage fluid dram of the slag acid tank (4)；It is described to wash
Wash the inlet that circulating slot leakage fluid dram is connected to the cleaning circulation pump (P1) by third transfer line (G3)；The washing follows
The leakage fluid dram of ring pump (P1) is connected to the inlet (1-2) of the Venturi scrubber (1) by the 4th transfer line (G4)；Its
In, two by-pass lines, respectively the 5th transfer line (G5) and the 6th infusion are drawn above from the 4th transfer line (G4)
Pipeline (G6)；5th transfer line (G5) is connected to the inlet of the slag acid tank (4)；In the 5th transfer line
(G5) control valve (K1) is installed above；The other end of 6th transfer line (G6) and it is installed on first transfer line
(G1) spray head (5) connection in.
Vent gas washing system in composite heat transfer provided by the utility model has the advantage that
(1) to the tail gas in composite heat transfer, once washing is carried out in Venturi scrubber, is carried out in the first transfer line
Secondary washing carries out gas-liquid separation in scrubbing tower 2, to improve the washing effect to tail gas in composite heat transfer comprehensively；
(2) reach the cleaning solution in the wash cycle slot of certain standard to degree of neutralization by slag acid tank to replace, guarantee
The effect of the washing tail gas of cleaning solution in wash cycle slot also avoids that crystallization is precipitated and leads to line clogging in cleaning solution
Phenomenon ensure that the smooth safe operation of washing process.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the vent gas washing system in composite heat transfer provided by the utility model.
Wherein:
1- Venturi scrubber；1-1- air inlet；1-2- inlet；
2- scrubbing tower；2-1- exhaust outlet；2-2- scrubbing tower leakage fluid dram；
3- wash cycle slot；4- slag acid tank；5- spray head；
P1- cleaning circulation pump；P2- slag acid pump；
The first transfer line of G1-；The second transfer line of G2-；G3- third transfer line；The 4th transfer line of G4-；G5-
Five transfer lines；The 6th transfer line of G6-；
K1- control valve.
Specific embodiment
The technical issues of in order to keep the utility model solved, technical solution and beneficial effect are more clearly understood, below
In conjunction with accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific implementation described herein
Example only to explain the utility model, is not used to limit the utility model.
The utility model provides the vent gas washing system in a kind of composite heat transfer, with reference to Fig. 1, including Venturi scrubber
1, scrubbing tower 2, wash cycle slot 3, slag acid tank 4, cleaning circulation pump P1 and slag acid pump P2；
The top of Venturi scrubber 1 is equipped with air inlet 1-1 and inlet 1-2；The lower part of Venturi scrubber 1 is equipped with text
Washer discharge gate in mound；Venturi scrubber discharge gate is connected to the inlet of scrubbing tower 2 by the first transfer line G1；It washes
The top for washing tower 2 is equipped with exhaust outlet 2-1；The bottom of scrubbing tower 2 is scrubbing tower leakage fluid dram 2-2, and scrubbing tower leakage fluid dram 2-2 is connected to
The inlet of wash cycle slot 3；
Wash cycle slot 3 has wash cycle slot leakage fluid dram and wash cycle slot inlet；Wash cycle slot inlet is logical
After crossing the second transfer line G2 and slag acid pump P2, it is connected to the leakage fluid dram of slag acid tank 4；Wash cycle slot leakage fluid dram is defeated by third
Liquid pipe line G3 is connected to the inlet of cleaning circulation pump P1；The leakage fluid dram of cleaning circulation pump P1 passes through the 4th transfer line G4 connection
To the inlet 1-2 of Venturi scrubber 1；Wherein, two by-pass lines of extraction above the 4th transfer line G4, the respectively the 5th
Transfer line G5 and the 6th transfer line G6；5th transfer line G5 is connected to the inlet of slag acid tank 4；In the 5th transfer line
Control valve K1 is installed above G5；The other end of 6th transfer line G6 connects with the spray head 5 being installed in the first transfer line G1
It connects.
Vent gas washing system in composite heat transfer provided by the utility model, its working principle is that:
(1) tail gas that composite heat transfer generates is passed into Venturi scrubber 1 by air inlet 1-1, meanwhile, washing follows
There is acidic cleaning liquid, acidic cleaning liquid passes through the effect of cleaning circulation pump P1, is driven by inlet 1-2 in annular groove 3
It in Venturi scrubber 1, and is sprayed downwards from the top showerhead of Venturi scrubber 1, tail gas and acidic cleaning liquid are in venturi
Contact is sufficiently mixed in washer 1, the pernicious gas in tail gas is realized if ammonia and acidic cleaning liquid react to tail gas
Absorbing and removing of middle pernicious gas；
(2) then, the cleaning solution of Jing Yici absorbing and removing is discharged from the bottom of Venturi scrubber 1, and enters first
Transfer line G1；
In the first transfer line G1, acidic cleaning liquid is pumped into spray head 5 by cleaning circulation pump P1 in wash cycle slot 3
In, and pass through internal spray acidic cleaning liquid of the spray head 5 to the first transfer line G1；Therefore, in the first transfer line G1, acid
Property cleaning solution secondary washing purification is carried out to the cleaning solution that is discharged from the bottom of Venturi scrubber 1, remove the nocuousness in tail gas
Gas
(3) then, it is injected into scrubbing tower 2 by the purified cleaning solution of secondary washing, gas-liquid is carried out in scrubbing tower 2
Separation, on the one hand, the gas for not having washed liquid absorption cleaning in tail gas is innocuous gas, directly passes through the exhaust of scrubbing tower 2
Mouth 2-1 is discharged to external environment；And the cleaning solution for absorbing pernicious gas is drained into wash cycle slot by scrubbing tower leakage fluid dram 2-2
In 3；The circulation of cleaning solution is consequently formed；
For wash cycle slot 3, with the continuous progress to washing tail gas, the degree of neutralization of cleaning solution in wash cycle slot 3
Constantly increase, the absorbability of pernicious gas in tail gas is gradually decreased, moreover, in wash cycle slot 3 in cleaning solution
Constantly increase with degree, is easier to that the crystallization such as one hydrogen ammonia of phosphoric acid is precipitated, which, which has, easily blocks pipeline in subsequent process, cause to wash
Technique can not be successfully progress.Therefore, such to solve the problems, such as in the application, when the degree of neutralization of cleaning solution reaches a certain level,
Control valve K1, the cleaning solution in wash cycle slot 3 are opened and tune up, a part returns Venturi scrubber and the first infusion
Pipeline G1 carries out washing tail gas operation；Some is driven into slag acid tank 4 and is diluted, and initial placement is in slag acid tank 4
Acid water free from foreign meter, volume are much larger than the volume of wash cycle slot 3.Then, the liquid in slag acid tank 4 passes through slag acid again and pumps
P2 is driven into wash cycle slot 3, is achieved in the displacement to cleaning solution in wash cycle slot 3, has both been improved it and has been washed to tail gas
Effect is washed, and avoids the phenomenon that crystallization is precipitated and leads to line clogging in cleaning solution, ensure that the smooth safety fortune of washing process
Row.
In conclusion the vent gas washing system in composite heat transfer provided by the utility model has the advantage that
(1) to the tail gas in composite heat transfer, once washing is carried out in Venturi scrubber, is carried out in the first transfer line
Secondary washing carries out gas-liquid separation in scrubbing tower 2, to improve the washing effect to tail gas in composite heat transfer comprehensively；
(2) reach the cleaning solution in the wash cycle slot of certain standard to degree of neutralization by slag acid tank to replace, guarantee
The effect of the washing tail gas of cleaning solution in wash cycle slot also avoids that crystallization is precipitated and leads to line clogging in cleaning solution
Phenomenon ensure that the smooth safe operation of washing process.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching should also regard the protection scope of the utility model.
Claims (1)
1. the vent gas washing system in a kind of composite heat transfer, which is characterized in that including Venturi scrubber (1), scrubbing tower
(2), wash cycle slot (3), slag acid tank (4), cleaning circulation pump (P1) and slag acid pump (P2)；
The top of the Venturi scrubber (1) is equipped with air inlet (1-1) and inlet (1-2)；The Venturi scrubber (1)
Lower part be equipped with Venturi scrubber discharge gate；The Venturi scrubber discharge gate is connected to by the first transfer line (G1)
The inlet of the scrubbing tower (2)；The top of the scrubbing tower (2) is equipped with exhaust outlet (2-1)；The bottom of the scrubbing tower (2)
For scrubbing tower leakage fluid dram (2-2), the scrubbing tower leakage fluid dram (2-2) is connected to the inlet of the wash cycle slot (3)；
The wash cycle slot (3) has wash cycle slot leakage fluid dram and wash cycle slot inlet；The wash cycle slot into
After liquid mouth is by the second transfer line (G2) and slag acid pump (P2), it is connected to the leakage fluid dram of the slag acid tank (4)；The washing follows
Annular groove leakage fluid dram is connected to the inlet of the cleaning circulation pump (P1) by third transfer line (G3)；The cleaning circulation pump
(P1) leakage fluid dram is connected to the inlet (1-2) of the Venturi scrubber (1) by the 4th transfer line (G4)；Wherein,
Two by-pass lines, respectively the 5th transfer line (G5) and the 6th transfer line are drawn above from the 4th transfer line (G4)
(G6)；5th transfer line (G5) is connected to the inlet of the slag acid tank (4)；On the 5th transfer line (G5)
Control valve (K1) is installed in face；It the other end of 6th transfer line (G6) and is installed in first transfer line (G1)
Spray head (5) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920084994.8U CN209612499U (en) | 2019-01-18 | 2019-01-18 | Vent gas washing system in composite heat transfer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920084994.8U CN209612499U (en) | 2019-01-18 | 2019-01-18 | Vent gas washing system in composite heat transfer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209612499U true CN209612499U (en) | 2019-11-12 |
Family
ID=68450489
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920084994.8U Active CN209612499U (en) | 2019-01-18 | 2019-01-18 | Vent gas washing system in composite heat transfer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114534423A (en) * | 2020-11-26 | 2022-05-27 | 河南晋开化工投资控股集团有限责任公司 | Compound fertilizer tail gas washing system and circulation process |
-
2019
- 2019-01-18 CN CN201920084994.8U patent/CN209612499U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114534423A (en) * | 2020-11-26 | 2022-05-27 | 河南晋开化工投资控股集团有限责任公司 | Compound fertilizer tail gas washing system and circulation process |
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