CN213714009U - Backup water bath type vaporizing device - Google Patents
Backup water bath type vaporizing device Download PDFInfo
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- CN213714009U CN213714009U CN202022742512.9U CN202022742512U CN213714009U CN 213714009 U CN213714009 U CN 213714009U CN 202022742512 U CN202022742512 U CN 202022742512U CN 213714009 U CN213714009 U CN 213714009U
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Abstract
The utility model provides a reserve water bath formula vapourizing unit. The backup water bath type vaporizing device comprises a backup water bath type vaporizer and a condensate pump; the top of the backup water bath type vaporizer is provided with a low-temperature liquid inlet and a normal-temperature gas outlet; one side surface of the backup water bath type vaporizer is provided with a low-pressure steam inlet; the other side surface of the backup water bath type vaporizer, which is opposite to the low-pressure steam inlet, is respectively connected with the inlet end of the condensate pump and the outlet end of the condensate pump; and a valve is arranged on a connecting pipeline between the outlet end of the condensate pump and the backup water bath type vaporizer, and the condensate pump, the valve and the backup water bath type vaporizer form a loop. The utility model discloses a reserve water bath formula vapourizing unit can retrieve the steam lime set, and simple structure practices thrift the cost and lime set recovery efficiency is high.
Description
Technical Field
The utility model relates to a vaporizing device especially relates to an air separator reserve water bath formula vaporizing device, belongs to separation recovery technical field.
Background
At present, the conventional low-pressure steam condensate treatment method of a backup low-temperature liquid gasifier in an air separation device mainly comprises the following steps:
1) directly discharging condensate
Considering that the steam used by the backup low-temperature liquid gasifier of the air separation device is at normal pressure after being condensed, the steam can only overflow to the trench through the overflow port and then is discharged to a clean wastewater system through the trench.
2) Condensate recovery
If the low-pressure or normal-pressure steam condensate needs to be recovered, particularly in northwest China, the steam condensate can not directly pass through a pipe network because of pressure and returns to a condensate recovery system of the whole plant, and at the moment, the low-pressure steam condensate needs to be subjected to pressure lifting and then is sent to the condensate recovery system of the whole plant through the pipe network.
The steam condensate comprises ATM-2.0MPaG grade low-pressure steam which is mainly used for automatically discharging normal-pressure condensate to a condensate collecting tank after being used for low-temperature liquid gasification and heating such as a backup liquid oxygen vaporizer, a liquid nitrogen vaporizer, a liquid argon vaporizer and the like.
After being cooled in the condensate collecting tank, the condensate is pressurized by the vertical immersed pump and then is sent to a condensate recovery system, and is usually sent to a desalted water station for recovery.
However, the above-mentioned methods for recovering and recovering the condensate are complicated and not economical. No matter the steam condensate recovery system is provided with a condensate recoverer or a condensate collecting tank, the condensate recovery system needs to comprise a condensate recovery container (the condensate collecting tank) and a condensate pump (a condensate under-pump).
Based on the above factors, it is necessary to design a recovery device for the condensate of the backup low-temperature liquid gasifier in the air separation plant.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an object of the utility model is to provide a reserve water bath formula vapourizing unit that can retrieve steam condensate, this vapourizing unit's equipment is simple, resources are saved.
In order to achieve the technical purpose, the utility model provides a backup water bath type vaporizing device, which comprises a backup water bath type vaporizer and a condensate pump; wherein the content of the first and second substances,
the top of the backup water bath type vaporizer is provided with a low-temperature liquid inlet and a normal-temperature gas outlet; one side surface of the backup water bath type vaporizer is provided with a low-pressure steam inlet;
the other side surface of the backup water bath type vaporizer, which is opposite to the low-pressure steam inlet, is respectively connected with the inlet end of the condensate pump and the outlet end of the condensate pump;
and a valve is arranged on a connecting pipeline between the outlet end of the condensate pump and the backup water bath type vaporizer, and the condensate pump, the valve and the backup water bath type vaporizer form a loop.
The utility model discloses a condensate pump among the reserve water bath formula gasification equipment not only can regard as the pipeline circulating pump, can also see off and take the condensate under the pressure, realizes that a pump is dual-purpose.
The utility model discloses an among the embodiment, the outlet end of condensate pump sets up two pipelines, a pipeline with reserve water bath formula vaporizer intercommunication, another pipeline is used for exporting the condensate.
In a specific embodiment of the present invention, the outlet end of the condensate pump is connected to the upper portion of the backup water bath vaporizer, and the inlet end of the condensate pump is connected to the lower portion of the backup water bath vaporizer. And a valve on a connecting pipeline between the outlet end of the condensate pump and the backup water bath type vaporizer is used for adjusting the pressure of the circulating hot water returning to the backup water bath type vaporizer.
In a specific embodiment of the present invention, the low pressure steam inlet end is provided with a first control valve. The first control valve is used for controlling the water temperature of the backup water bath type vaporizer. The water temperature is too low, freezing can occur, and when the temperature is low, a large valve needs to be opened, steam is injected, and the water temperature is increased.
In a specific embodiment of the present invention, the backup water bath vaporizer is provided with a liquid level controller; the liquid level controller is connected with the first control valve.
The utility model discloses an in a specific embodiment, the lime set pump is used for setting up second control flap on the pipeline of output lime set. The second control valve is used for controlling the amount of the condensate to be sent out, and when the amount of the condensate is not large, the second control valve is closed or closed, so that the liquid level of water in the backup water bath type vaporizer is ensured to submerge the coil pipe of the heat exchanger, and the water is prevented from freezing or the temperature of the sent gas is prevented from being too low.
In a specific embodiment of the present invention, the backup water bath vaporizer is provided with a temperature controller; the temperature controller is connected with the second control valve.
In one embodiment of the present invention, an overflow drain outlet is provided on the side of the low pressure steam inlet of the backup water bath vaporizer.
In one embodiment of the present invention, the overflow discharge outlet is disposed above the low pressure steam inlet.
In a particular embodiment of the present invention, the cryogenic liquid inlet is connected to an air separation plant.
The utility model discloses a reserve water bath formula vaporizer, traditional reserve water bath formula vaporizer sets up the hot water circulating pump in present air separation plant for replace lime set collecting pit and lime set pump down, see off low pressure/ordinary pressure steam lime set part behind the hot water circulating pump pressure boost, can realize the recovery of lime set, adopt circulation hot water pump pressure boost principle to retrieve the direct pressure boost of ordinary pressure lime set promptly, practiced thrift the investment and the area that set up lime set collecting pit and lime set pump down.
The utility model discloses a reserve water bath formula vapourizing unit's steam condensate rate of recovery can reach 100%, and the condensate can directly be sent to the desalination water station and retrieve.
Drawings
Fig. 1 is a schematic structural view of a backup water bath vaporizer according to embodiment 1 of the present invention.
Description of the main figures
S201, a low-temperature liquid inlet; s202, a normal-temperature liquid outlet; s218, an atmosphere inlet; s212, a low-pressure steam inlet; s217, overflowing a discharge outlet; v211, a first control valve; p211, a condensate pump; V201A, valve; V201B, second control valve; e211, a backup water bath type vaporizer.
Detailed Description
For a clearer understanding of the technical features, objects and advantages of the present invention, the following detailed description of the technical solutions of the present invention is given, but the present invention is not limited to the applicable range of the present invention.
Example 1
The present embodiment provides a backup water bath vaporizer having a structure as shown in fig. 1, and including a backup water bath vaporizer E211 and a condensate pump P211.
The top of the backup water bath vaporizer E211 is provided with a low-temperature liquid inlet S201, an atmospheric air inlet S218, and a normal-temperature gas outlet S202.
One side of the backup water bath type vaporizer E211 is provided with a low pressure steam inlet S212 and an overflow drain outlet S217. Wherein, the low pressure steam inlet S212 is provided at a lower portion of the backup water bath type vaporizer E211, and the overflow drain outlet S217 is located at an upper portion of the backup water bath type vaporizer E211.
The lower portion of the other side surface of the backup water bath vaporizer E211 opposite to the low-pressure steam inlet S212 is connected to the inlet end of the condensate pump P211, and the upper portion of the side surface is connected to the outlet end of the condensate pump P211. Two pipelines are arranged at the outlet end of the condensate pump, one pipeline is communicated with the backup water bath type vaporizer E211, and the other pipeline is used for outputting condensate.
A valve V201A is arranged on a connecting pipeline between the outlet end of the condensate pump P211 and the backup water bath type vaporizer E211, wherein the condensate pump P211, the valve V201A and the backup water bath type vaporizer E211 form a loop.
Wherein, the pipeline that the condensate pump is used for exporting the condensate sets up second control valve V201B.
As shown in fig. 1, the low pressure steam inlet port is provided with a first control valve V211. The backup water bath type vaporizer E211 is provided with a liquid level controller; the liquid level controller is connected with a first control valve V211. The backup water bath type vaporizer E211 is provided with a temperature controller; the temperature controller is connected with a second control valve V201B.
The backup water bath type vaporizing device of the embodiment is implemented according to the following steps when the condensate is recovered:
the low-pressure steam is adjusted to 0.3-0.5MPa through a first control valve V211 and then is directly sprayed into the bottom of a backup water bath type vaporizer E211 through a low-pressure steam inlet S212, low-temperature liquid in a heat exchange coil, such as liquid oxygen, liquid nitrogen, liquid argon and the like, enters the backup water bath type vaporizer E211 through a low-temperature liquid inlet S201, heat transfer is carried out through steam condensation, and finally the low-temperature liquid is gasified to the normal temperature or slightly lower than the normal temperature and then is sent to a product gas pipe network through a normal-temperature liquid outlet S202.
The condensed low pressure steam becomes atmospheric steam condensate (as the heat exchanger shell side passes through the atmospheric inlet S218 together with the atmosphere), and the atmospheric steam condensate is collected in the backup water bath vaporizer E211.
After being pressurized by a condensate pump P211, most of the normal-pressure condensate is decompressed and circulated back to the backup water bath type gasifier E211 through a valve V201A, so that the heat transfer effect is enhanced and the low temperature of the local part of the water bath is prevented. The other part is taken as a branch material flow, is adjusted by a second control valve V201B and is directly taken as a recovery condensate to be sent out of the battery limits through a pipeline after the water level is kept stable.
The normal pressure steam condensate can be recovered through the backup water bath type vaporizing device in the figure 1 under the condition that a condensate recovery pool and a condensate submerged pump are not arranged, and only the flow and the pressure of a circulating hot water pump are required to be increased and a liquid level control instrument and a valve of a liquid level backup low-temperature liquid water bath type vaporizer are required to be additionally arranged. The investment and the operation cost are not changed greatly, the pressure of the condensate recovery system is usually not higher than 0.5MPaG, the power of the circulating hot water pump is very small, the operation cost can be ignored, but the normal-pressure condensate recovery system is greatly simplified.
Through the utility model discloses a back-up water bath formula vapourizing unit handles the back, and steam condensate can 100% retrieve, does not have other impurity moreover in the steam condensate night.
Claims (10)
1. A backup water bath type vaporizing device is characterized by comprising a backup water bath type vaporizer and a condensate pump; wherein the content of the first and second substances,
the top of the backup water bath type vaporizer is provided with a low-temperature liquid inlet and a normal-temperature gas outlet; a low-pressure steam inlet is formed in one side face of the backup water bath type vaporizer;
the other side surface of the backup water bath type vaporizer, which is opposite to the low-pressure steam inlet, is respectively connected with the inlet end of the condensate pump and the outlet end of the condensate pump;
and a valve is arranged on a connecting pipeline between the outlet end of the condensate pump and the backup water bath type vaporizer, and the condensate pump, the valve and the backup water bath type vaporizer form a loop.
2. The backup water bath vaporizer of claim 1, wherein two lines are provided at the outlet of the condensate pump, one line being in communication with the backup water bath vaporizer and the other line being for outputting condensate.
3. A backup water bath vaporizer according to claim 1, wherein the outlet end of the condensate pump is connected to the upper part of the backup water bath vaporizer and the inlet end of the condensate pump is connected to the lower part of the backup water bath vaporizer.
4. A backup water bath carburettor according to claim 1 wherein the low pressure steam inlet is provided with a first control valve.
5. The backup water bath vaporizer of claim 4, wherein the backup water bath vaporizer is provided with a level controller; the liquid level controller is connected with the first control valve.
6. A backup water bath vaporizer according to claim 1, wherein the condensate pump is provided with a second control valve on the pipeline for delivering condensate.
7. A backup water bath vaporizer according to claim 6, wherein the backup water bath vaporizer is provided with a temperature controller; and the temperature controller is connected with the second control valve.
8. A backup water bath vaporizer according to claim 1, having an overflow drain outlet on the low pressure steam inlet side of the backup water bath vaporizer.
9. A backup water bath vaporizing unit according to claim 8 wherein the overflow drain outlet is provided at the upper part of the low pressure steam inlet.
10. A backup water bath vaporizer according to claim 1, wherein the cryogenic liquid inlet is connected to an air separation plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022742512.9U CN213714009U (en) | 2020-11-24 | 2020-11-24 | Backup water bath type vaporizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022742512.9U CN213714009U (en) | 2020-11-24 | 2020-11-24 | Backup water bath type vaporizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213714009U true CN213714009U (en) | 2021-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022742512.9U Active CN213714009U (en) | 2020-11-24 | 2020-11-24 | Backup water bath type vaporizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213714009U (en) |
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2020
- 2020-11-24 CN CN202022742512.9U patent/CN213714009U/en active Active
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