CN114704768A - Water bath type vaporizer parallel air bath type vaporizer - Google Patents
Water bath type vaporizer parallel air bath type vaporizer Download PDFInfo
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- CN114704768A CN114704768A CN202210101387.4A CN202210101387A CN114704768A CN 114704768 A CN114704768 A CN 114704768A CN 202210101387 A CN202210101387 A CN 202210101387A CN 114704768 A CN114704768 A CN 114704768A
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- vaporizer
- water bath
- bath type
- air bath
- type vaporizer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
- F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
Abstract
The invention relates to the technical field of vaporizers, and discloses a water bath type vaporizer parallel connection air bath type vaporizer, which comprises: the utility model discloses a nitrogen gas supply device, including water bath vaporizer and fixed air bath vaporizer, water bath vaporizer imports and exports and increase the tee bend and draw forth the connecting pipe, water bath vaporizer passes through the connecting pipe and connects in parallel with fixed air bath vaporizer, the external connection of water bath vaporizer has first feed liquor pipe, the import position of fixed air bath vaporizer is provided with the tee bend, and the connecting pipe connection is drawn forth in the import of import tee bend and water bath vaporizer, opens first valve floodgate and second valve floodgate through control, opens fixed air bath vaporizer and supplies nitrogen gas, guarantees the production needs. The operation of the water bath type vaporizer connected with the fixed air bath type vaporizer in parallel is realized, when shutdown steam of a whole plant is stopped, the fixed air bath type vaporizer can be used for continuously providing nitrogen for the device, and the nitrogen supply in a tank area and the device purging is ensured. After the fixed air bath type vaporizer is added, the normal supply of the security nitrogen after the whole plant is stopped can be ensured.
Description
Technical Field
The invention relates to the technical field of vaporizers, in particular to a water bath type vaporizer connected with an air bath type vaporizer in parallel.
Background
When the factory building overhauls parking, need provide protection nitrogen gas when overhauing usually, the nitrogen gas supply when current parking overhauls carries out the liquid nitrogen liquefaction through water bath vaporizer, carries out the heat exchange through hot water and low temperature liquid gas to make low temperature liquid nitrogen gas gasification become gaseous state nitrogen gas, wherein, water bath vaporizer, the name of the name is exactly that low temperature liquid carries out the heat exchanger of heat transfer with water. The cryogenic liquid is supplied by a liquid nitrogen pump, the tube side is cryogenic liquid and the shell side is water. And introducing superheated steam with the pressure of 0.5mpa into the shell pass, and raising the water temperature of the shell pass to ensure the heat required by the low-temperature liquid to be evaporated to the normal temperature, thereby realizing the nitrogen supply function.
However, in the actual use process, due to the single air supply mode, after the whole plant is stopped, the 0.5Mpa steam can not be supplied, so that the security nitrogen can not be supplied externally, the oxygen supply capability of the liquid oxygen pump is greatly limited, at the moment, the steam pressure is low, and when the water temperature can not meet the requirement, only the gasification amount can be reduced or the output of the low-temperature liquid can be directly stopped. Resulting in the failure of stopping the whole plant for maintenance. It is desirable to change this single air supply.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the water bath type vaporizer in parallel connection with the air bath type vaporizer, which has the advantages of good use effect, increased gas supply mode and capability of effectively meeting the requirement of nitrogen supply during the whole plant maintenance.
In order to achieve the purpose, the invention provides the following technical scheme: the parallelly connected air bath formula vaporizer of water bath formula vaporizer includes: the device comprises a water bath type vaporizer, a fixed air bath type vaporizer, a first liquid inlet pipe, a second liquid inlet pipe, a gas supply pipe, a first valve gate, a second valve gate, an external valve gate, a connecting pipe, a connecting valve gate, a safety valve gate and a movable air bath type vaporizer.
The positions and the connection relations of the structures are as follows:
a first tee joint is added at the inlet and the outlet of the water bath type vaporizer, a connecting pipe is led out of the first tee joint, the water bath type vaporizer is connected with the fixed air bath type vaporizer in parallel through the connecting pipe, a first liquid inlet pipe is connected to the outside of the water bath type vaporizer, a second tee joint is arranged at the inlet of the fixed air bath type vaporizer, the second tee joint is connected with the connecting pipe led out of the inlet of the water bath type vaporizer, a second liquid inlet pipe is connected to the outside of the second tee joint, a third tee joint is arranged at the outlet of the water bath type vaporizer and the outlet of the fixed air bath type vaporizer, and an air supply pipe is led out of the third tee joint;
the second feed liquor pipe is provided with first valve floodgate, the outside of the import connecting pipe of water bath formula vaporizer and fixed air bath formula vaporizer is provided with external valve floodgate, the import connecting pipe of water bath formula vaporizer is provided with the connecting valve floodgate.
Preferably, the fixed air bath vaporizer is a vertically standing heat exchanger that vaporizes the cryogenic liquid medium by extracting heat from the atmosphere through the star-shaped finned tubes.
Preferably, the connection between the fixed air bath vaporizer finned tubes is connected by a bridge type of clamping and meshing, and the finned tubes are connected with the frame through bolts.
Preferably, a connecting pipe led out from the first tee joint is connected with a safety valve gate.
Preferably, a second valve gate is arranged on a connecting pipe at the position of the air outlet of the fixed air bath type vaporizer.
Preferably, a movable air bath type vaporizer can be selectively connected to the outside of the external valve gate.
Preferably, the movable air bath type vaporizer is a vehicle-mounted vaporizer, and the movable air bath type vaporizer and the fixed air bath type vaporizer are identical in structure.
Has the advantages that:
the water bath type vaporizer is connected with the air bath type vaporizer in parallel, the first valve gate and the second valve gate are opened through control, the fixed air bath type vaporizer is opened to supply nitrogen, and production requirements are guaranteed. The operation of the water bath type vaporizer connected with the fixed air bath type vaporizer in parallel is realized, when the steam is stopped and used in the whole plant, the fixed air bath type vaporizer can be used for continuously providing nitrogen for the device, and the nitrogen supply in the tank area and the device purging is ensured. After the fixed air bath type vaporizer is added, the normal supply of the security nitrogen after the whole plant is stopped can be ensured.
The water bath type vaporizer is connected with the air bath type vaporizer in parallel, and the three-way valve and the external valve gate are added to the inlet and outlet pipeline of the fixed air bath type vaporizer, so that if the fixed air bath type vaporizer cannot meet the requirement of supplying nitrogen to a rear system, the fixed air bath type vaporizer can be connected with the movable air bath type vaporizer. The equipment purchase cost is reduced, the mode of supplying nitrogen can be optimized in time, the movable air bath type vaporizer is added in a renting mode, the gasification capacity is increased and selected according to the nitrogen amount required by the process, the use effect is effectively improved, and the use cost is reduced.
Drawings
FIG. 1 is a schematic view of the installation of a water bath vaporizer according to the present invention;
FIG. 2 is a schematic view of a water bath vaporizer and a fixed air bath vaporizer connected in parallel with a nitrogen supply device according to the present invention;
FIG. 3 is a schematic view of the air supply device connected to the movable air bath vaporizer according to the present invention;
FIG. 4 is a table of parameters for 3000Nm3/h air temperature type liquid nitrogen vaporizer according to the present invention;
fig. 5 is a schematic view illustrating the change of the operating efficiency of the fixed air bath type vaporizer according to the present invention.
In the figure: 1. a water bath vaporizer; 2. a stationary air bath vaporizer; 3. a first liquid inlet pipe; 31. a second liquid inlet pipe; 4. a gas supply pipe; 5. a first valve gate; 6. a second valve gate; 7. a valve gate is connected externally; 8. a connecting pipe; 81. connecting a valve gate; 9. a safety valve gate; 10. moving the air-bath vaporizer; 11. a first tee joint; 12. A second tee joint; 13. and a third tee.
Detailed Description
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 one
Referring to fig. 1, the water bath type vaporizer connected in parallel with the air bath type vaporizer includes: the device comprises a water bath type vaporizer 1, wherein a first liquid inlet pipe 3 is connected to the outside of the water bath type vaporizer 1, and the water bath type vaporizer 1 is connected with a gas supply pipe 4.
When the parking maintenance is carried out, liquid nitrogen enters the first liquid inlet pipe 3 for supply, enters the water bath type vaporizer 1, is vaporized under the action of the water bath type vaporizer 1, and provides nitrogen protection outwards through the gas supply pipe 4, so that the parking maintenance is protected.
Example two
Referring to fig. 2, the water bath type vaporizer connected in parallel with the air bath type vaporizer includes: the water bath type vaporizer comprises a water bath type vaporizer 1 and a fixed air bath type vaporizer 2, wherein a first tee joint 11 is additionally arranged at the inlet and the outlet of the water bath type vaporizer 1, a connecting pipe 8 is led out of the first tee joint 11, the water bath type vaporizer 1 is connected with the fixed air bath type vaporizer 2 in parallel through the connecting pipe 8, a first liquid inlet pipe 3 is connected to the outside of the water bath type vaporizer 1, a second tee joint 12 is arranged at the inlet of the fixed air bath type vaporizer 2, the second tee joint 12 is connected with the inlet leading-out connecting pipe 8 of the water bath type vaporizer 1, a second liquid inlet pipe 31 is connected to the outside of the second tee joint 12, a third tee joint 13 is arranged at the outlet of the water bath type vaporizer 1 and the outlet of the fixed air bath type vaporizer 2, and an air supply pipe 4 is led out of the third tee joint 13; . The second liquid inlet pipe 31 is provided with a first valve gate 5, and the inlet connecting pipe 8 of the water bath vaporizer 1 is provided with a connecting valve gate 81. The connecting valve gate 81 and the second valve gate 6 are additionally arranged at the inlet and the outlet of the water bath type vaporizer 1, so that the fixed air bath type vaporizer 2 can be normally cut out, and the requirements of maintenance and production are met.
In this embodiment, the fixed air bath vaporizer 2 is a vertically standing heat exchanger that vaporizes a cryogenic liquid medium by extracting heat from the atmosphere through star-shaped finned tubes. The novel high finned tube is adopted for heat exchange, so that the unit heat exchange area is increased, the whole occupied area is reduced, and the service life is long.
In this embodiment, the connection between the vaporizer finned tubes of the fixed air bath vaporizer 2 is connected by a bridge type of snap engagement, and the finned tubes are connected with the frame by bolts. Ensures good rigidity of the vaporizer, is not easy to fall apart during transportation, and has small deformation.
In this embodiment, the connection pipe 8 led out from the first tee 11 is connected with a safety valve 9. The safety of the vaporizer during nitrogen gas delivery is ensured.
In this embodiment, the outlet position connecting pipe 8 of the fixed air bath vaporizer 2 is provided with a second valve 6. Further ensuring the cutting-out effect of the stationary air bath vaporizer 2.
When the whole plant is stopped and overhauled, the safety nitrogen cannot be supplied outside due to the fact that 0.5Mpa steam cannot be supplied, and the whole plant cannot be stopped and overhauled. The connection valve gate 81 and the second valve gate 6 are controlled to be opened, so that the fixed air bath type vaporizer 2 can be conveniently cut out, and the requirements on maintenance and production are met. A tee joint 11 and a gate valve are added to an inlet and outlet pipeline of the fixed air bath type vaporizer 2, the first valve gate 5 and the second valve gate 6 are controlled to be opened, the fixed air bath type vaporizer 2 is opened to supply nitrogen, and production requirements are guaranteed. The water bath type vaporizer 1 is connected with the fixed air bath type vaporizer 2 in parallel for operation, when the shutdown steam of the whole plant is stopped, the fixed air bath type vaporizer 2 can be used for continuously providing nitrogen for the device, and the nitrogen supply in a tank area and the device purging is ensured. After the fixed air bath type vaporizer 2 is added, the normal supply of the nitrogen can be ensured after the whole plant is shut down, and the gasification capacity of the fixed air bath type vaporizer 2 is 3000Nm 3/h.
The fixed air bath type vaporizer 2 continuously works within the normal working time range for 6-8h, the outlet temperature is not lower than the ambient temperature minus 15 ℃, and equipment is switched to use immediately after the temperature is too low.
The change of the working efficiency is shown in fig. 5.
The lower point of the inlet pipeline of the fixed air bath type vaporizer 2 is added with guide showers to meet the liquid discharge requirement.
Wherein 3000Nm3/h air temperature type liquid nitrogen vaporizer parameter refers to FIG. 4
EXAMPLE III
Referring to fig. 3, the water bath type vaporizer connected in parallel with the air bath type vaporizer includes: water bath vaporizer 1 and fixed air bath vaporizer 2, water bath vaporizer 1 import and export increase tee bend 11 and draw out connecting pipe 8, water bath vaporizer 1 is parallelly connected with fixed air bath vaporizer 2 through connecting pipe 8, the external connection of water bath vaporizer 1 has first feed liquor pipe 3, the import position of fixed air bath vaporizer 2 is provided with tee bend 11, and import tee bend 11 and the import of water bath vaporizer 1 are drawn out connecting pipe 8 and are connected, and the external connection of import tee bend 11 has second feed liquor pipe 31, water bath vaporizer 1 and fixed air bath vaporizer 2 all are connected with air supply pipe 4.
The second liquid inlet pipe 31 is provided with a first valve gate 5, the external valve gates 7 are arranged outside the inlet connecting pipes 8 of the water bath type vaporizer 1 and the fixed air bath type vaporizer 2, and the inlet connecting pipe 8 of the water bath type vaporizer 1 is provided with a connecting valve gate 81.
In this embodiment, the fixed air bath vaporizer 2 is a vertically standing heat exchanger that vaporizes a cryogenic liquid medium by extracting heat from the atmosphere through star-shaped finned tubes.
In this embodiment, the connection between the vaporizer finned tubes of the fixed air bath vaporizer 2 is connected by a bridge type of snap engagement, and the finned tubes are connected with the frame by bolts.
In this embodiment, the connecting pipes 8 led out from the inlet and outlet tee joints 11 of the water bath vaporizer 1 are all connected with the safety valve 9.
In this embodiment, the outlet position connecting pipe 8 of the fixed air bath vaporizer 2 is provided with a second valve gate 6.
In this embodiment, a movable air bath vaporizer 10 can be selectively connected to the outside of the external valve gate 7.
In this embodiment, the movable air bath type vaporizer 10 is a vehicle-mounted vaporizer, and the movable air bath type vaporizer 10 has the same structure as the air temperature vaporizer of the fixed air bath type vaporizer 2.
On the basis of the second embodiment, a tee 11 and an external valve gate 7 are added to an inlet and outlet pipeline of the fixed air bath type vaporizer 2, and if the fixed air bath type vaporizer 2 cannot meet the requirement of supplying nitrogen to a rear system, the fixed air bath type vaporizer can be connected with the movable air bath type vaporizer 10. The equipment purchase cost is reduced, the mode of supplying nitrogen can be optimized in time, the movable air bath type vaporizer 10 is added in a renting mode, the gasification capacity is increased and selected according to the nitrogen amount required by the process, the use effect is effectively improved, and the use cost is reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The parallelly connected air bath formula vaporizer of water bath formula vaporizer which characterized in that includes: a water bath type vaporizer (1) and a fixed air bath type vaporizer (2), a first tee joint (11) is added at the inlet and the outlet of the water bath type vaporizer (1), a connecting pipe (8) is led out of the first tee joint (11), the water bath type vaporizer (1) is connected in parallel with the fixed air bath type vaporizer (2) through a connecting pipe (8), the outside of the water bath type vaporizer (1) is connected with a first liquid inlet pipe (3), a second tee joint (12) is arranged at the inlet position of the fixed air bath type vaporizer (2), the second tee joint (12) is connected with an inlet leading-out connecting pipe (8) of the water bath type vaporizer (1), a second liquid inlet pipe (31) is connected outside the second tee joint (12), a third tee joint (13) is arranged at the outlet positions of the water bath type vaporizer (1) and the fixed air bath type vaporizer (2), and the third tee joint (13) is led out of the air supply pipe (4);
the second feed liquor pipe (31) is provided with first valve floodgate (5), the outside of import connecting pipe (8) of water bath formula vaporizer (1) and fixed air bath formula vaporizer (2) is provided with external valve floodgate (7), import connecting pipe (8) of water bath formula vaporizer (1) are provided with connecting valve floodgate (81).
2. The water bath vaporizer of claim 1 in parallel with an air bath vaporizer, wherein: the fixed air bath type vaporizer (2) is a vertical heat exchanger, and absorbs heat from the atmosphere through star-shaped finned tubes to vaporize a low-temperature liquid medium.
3. The water bath vaporizer of claim 1 in parallel with an air bath vaporizer, wherein: the connection between the vaporizer finned tubes of the fixed air bath vaporizer (2) is in bridge connection by clamping and meshing, and the finned tubes are connected with the frame through bolts.
4. The water bath vaporizer of claim 1 in parallel with an air bath vaporizer, wherein: and a connecting pipe (8) led out of the first tee joint (11) is connected with a safety valve gate (9).
5. The water bath vaporizer of claim 1 in parallel with an air bath vaporizer, wherein: and a second valve gate (6) is arranged on a connecting pipe (8) at the air outlet position of the fixed air bath type vaporizer (2).
6. The water bath vaporizer parallel air bath vaporizer of claim 1, wherein: the outside of the external valve gate (7) can be selectively connected with a movable air bath type vaporizer (10).
7. The water bath vaporizer of claim 1 in parallel with an air bath vaporizer, wherein: the movable air bath type vaporizer (10) is a vehicle-mounted vaporizer, and the movable air bath type vaporizer (10) and the fixed air bath type vaporizer (2) are identical in structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210101387.4A CN114704768A (en) | 2022-01-27 | 2022-01-27 | Water bath type vaporizer parallel air bath type vaporizer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210101387.4A CN114704768A (en) | 2022-01-27 | 2022-01-27 | Water bath type vaporizer parallel air bath type vaporizer |
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| CN114704768A true CN114704768A (en) | 2022-07-05 |
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| CN202210101387.4A Pending CN114704768A (en) | 2022-01-27 | 2022-01-27 | Water bath type vaporizer parallel air bath type vaporizer |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476806A (en) * | 2009-01-24 | 2009-07-08 | 中国电子系统工程第二建设有限公司 | Low-temperature liquid vaporization cooling capacity recovery utilization system |
| CN103322411A (en) * | 2013-07-16 | 2013-09-25 | 兖矿集团有限公司 | Chemical system stoppage protective device |
| CN205226873U (en) * | 2015-12-08 | 2016-05-11 | 东华工程科技股份有限公司 | Accident nitrogen system suitable for environment low temperature area |
| CN205606172U (en) * | 2016-05-05 | 2016-09-28 | 内蒙古汇能煤化工有限公司 | Liquid nitrogen gasification equipment |
| CN205640220U (en) * | 2016-05-03 | 2016-10-12 | 上海加力气体有限公司 | Liquid nitrogen vaporization intelligent regulation system |
| CN106224775A (en) * | 2016-07-29 | 2016-12-14 | 重庆宝吉汽车零部件有限公司 | The auxiliary process facility of energy-saving public affairs |
| CN215446036U (en) * | 2021-05-14 | 2022-01-07 | 渭南陕鼓气体有限公司 | Air separation factory security nitrogen gas supply system |
-
2022
- 2022-01-27 CN CN202210101387.4A patent/CN114704768A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476806A (en) * | 2009-01-24 | 2009-07-08 | 中国电子系统工程第二建设有限公司 | Low-temperature liquid vaporization cooling capacity recovery utilization system |
| CN103322411A (en) * | 2013-07-16 | 2013-09-25 | 兖矿集团有限公司 | Chemical system stoppage protective device |
| CN205226873U (en) * | 2015-12-08 | 2016-05-11 | 东华工程科技股份有限公司 | Accident nitrogen system suitable for environment low temperature area |
| CN205640220U (en) * | 2016-05-03 | 2016-10-12 | 上海加力气体有限公司 | Liquid nitrogen vaporization intelligent regulation system |
| CN205606172U (en) * | 2016-05-05 | 2016-09-28 | 内蒙古汇能煤化工有限公司 | Liquid nitrogen gasification equipment |
| CN106224775A (en) * | 2016-07-29 | 2016-12-14 | 重庆宝吉汽车零部件有限公司 | The auxiliary process facility of energy-saving public affairs |
| CN215446036U (en) * | 2021-05-14 | 2022-01-07 | 渭南陕鼓气体有限公司 | Air separation factory security nitrogen gas supply system |
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