CN207907738U - It is a kind of to be used for nitrogen, ammonia, methane purifying high-pressure plate-fin heat exchanger in tail gas - Google Patents
It is a kind of to be used for nitrogen, ammonia, methane purifying high-pressure plate-fin heat exchanger in tail gas Download PDFInfo
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- CN207907738U CN207907738U CN201820172649.5U CN201820172649U CN207907738U CN 207907738 U CN207907738 U CN 207907738U CN 201820172649 U CN201820172649 U CN 201820172649U CN 207907738 U CN207907738 U CN 207907738U
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Abstract
It is a kind of for nitrogen, ammonia, methane purifying high-pressure plate-fin heat exchanger in tail gas, including shell, and high pressure exhaust gas channel, high pressure hydrogen rich gas channel and the low-pressure fuel gas channel of setting inside housings the utility model is related to plate-fin heat exchanger technical field；The high pressure exhaust gas channel, high pressure hydrogen rich gas channel, which include matrix type, enhances holder, and the import guide above matrix type enhancing holder is arranged, and the outlet flow deflector below matrix type enhancing holder is arranged；The matrix type enhancing holder is equipped with multiple matrix units, and high pressure fin is equipped in each matrix unit；Matrix type enhancing holder between two adjacent matrix units of upper and lower directions is communicated equipped with first fluid channel, and the matrix type enhancing holder between two adjacent matrix units of left and right directions is communicated equipped with bleed-off passage.The high-pressure plate-fin heat exchanger uses simply and reliablely enhancing structure, to make the anti-high-voltage performance of high-pressure channel greatly improve.
Description
Technical field
The utility model is related to plate-fin heat exchanger technical field, more particularly to one kind are net for nitrogen, ammonia, methane in tail gas
The high-pressure plate-fin heat exchanger of change.
Background technology
It is the key equipment in synthetic ammonia tailgas purification system for nitrogen, ammonia, methane purifying heat exchanger in tail gas, net
In change system, foreign technology uses aluminium alloy, tube sheet and case material using or not double adjoining pipe coiled heat exchangers, heat exchanger tube
Become rusty steel.It is usually leaked at the expanded joint of tube sheet and heat exchanger tube in more user's uses, prevents equipment from normal use, and
It is a hot-fluid, a cold flow in pipe, shell side is cold flow, and this adjoining pipe formula wound form structure is not suitable for domestic manufacture and uses.City
Field boundary demand substitutes import, i.e. plate-fin heat exchanger using another heat transmission equipment；Plate-fin heat exchanger is manufactured using aluminium alloy, by
The parts such as thermofin, flow deflector, partition board, strip of paper used for sealing, side plate, collection chamber, bearing form, and are a kind of partition high-performance heat exchangers,
It is brazed under high temperature, high vacuum environment.But the domestic technique of plate-fin heat exchanger is only capable of reaching design pressure less than 10MPa's
Field boundary closes, and after design pressure is more than 10MPa, fin with desoldering at partition board, makes equipment leakage, bursts and cannot work at elevated pressures
Or damage.But the design pressure of the tail gas, hydrogen rich gas in synthetic ammonia tailgas purification system is 12MPa, using plate-fin heat exchanger
Novel high strength structure must be used, just can make this heat exchanger applications in tail gas clean-up, solution troubles plate-fin for a long time and changes
The design pressure of hot device cannot break through a design difficulty of 10MPa.
Invention content
To solve the above-mentioned problems, the purpose of this utility model is to provide one kind for nitrogen in tail gas, ammonia, methane purifying
High-pressure plate-fin heat exchanger, which uses simply and reliablely enhancing structure, to make high-pressure channel
Anti- high-voltage performance greatly improve.
In order to achieve the above purpose, the utility model uses technical solution below：
It is a kind of to be used for nitrogen, ammonia, methane purifying high-pressure plate-fin heat exchanger in tail gas, including shell, and be arranged in shell
High pressure exhaust gas channel, high pressure hydrogen rich gas channel and the low-pressure fuel gas channel in internal portion；The shell is equipped with high pressure hydrogen rich gas
Import, the outlet of high pressure hydrogen rich gas, high pressure exhaust gas import, high pressure exhaust gas outlet, the import of low-pressure fuel gas, low-pressure fuel gas-liquid import
It is exported with low-pressure fuel gas；Pass through high pressure hydrogen rich gas channel phase between the high pressure hydrogen rich gas import and the outlet of high pressure hydrogen rich gas
It is logical, it is communicated by high pressure exhaust gas channel between high pressure exhaust gas import and high pressure exhaust gas outlet, the import of low-pressure fuel gas, low-pressure fuel
Gas-liquid import and the outlet of low-pressure fuel gas are communicated by low-pressure fuel gas channel；It is characterized in that：The high pressure exhaust gas channel, height
It includes matrix type enhancing holder to press hydrogen rich gas channel, and the import guide above matrix type enhancing holder is arranged, with
And the outlet flow deflector below matrix type enhancing holder is set；The matrix type enhancing holder is equipped with multiple matrix units,
It is equipped with high pressure fin in each matrix unit；On matrix type enhancing holder between two adjacent matrix units of upper and lower directions
It is communicated equipped with first fluid channel, the fluid between channel direction and the import guide extremely outlet flow deflector in first fluid channel
Flow direction is parallel；Matrix type enhancing holder between two adjacent matrix units of left and right directions is equipped with bleed-off passage phase
Logical, the channel direction and the channel direction in first fluid channel of bleed-off passage are perpendicular.
Preferably, also embedding in high pressure fin in the matrix unit in the high pressure exhaust gas channel and high pressure hydrogen rich gas channel
Enter to have several reinforcing elements, be equipped with multiple second fluid channels in reinforcing element, the channel direction in second fluid channel with into
Mouth flow deflector is parallel to the fluid flow direction between outlet flow deflector.In above-mentioned technical proposal.Up and down the two of reinforcing element
A brazing surface makes the pressure of high-pressure channel reduce, and second fluid channel thereon can very easily fluid pass in and out.
Preferably, the high pressure exhaust gas channel and high pressure hydrogen rich gas channel further include sealing framework；Framework is sealed to surround
Import guide, matrix type enhancing holder and outlet flow deflector setting；Multiple seal grooves are offered in the sealing framework.The skill
Framework is sealed in art scheme, in structure realizes anti-leak under high pressure, and brazing flux can be immersed in height after liquidus curve dissolves
In the seal line of pressure passageway sealing element, good anti-leak blocking is formd.
Preferably, the high pressure fin is to saw finned, punching shape or flat shape, the wing square of high pressure fin is 1-1.5 millis
Rice, fin thickness are 0.5-0.6 millimeters.
Preferably, low-pressure fuel gas channel includes gas-liquid mixed part, and it is arranged two above and below gas-liquid mixed part
The upper fin unit of side and lower fin unit；The gas-liquid mixed part horizontal direction is provided with fuel gas-liquid channel, longitudinal direction
It is provided with fuel gas passageway, fuel gas-liquid channel and fuel gas passageway communicate, and upper fin unit and lower fin unit pass through fuel
Gas channel communicates；The low-pressure fuel gas-liquid import is connect with the fuel gas-liquid channel, the import of low-pressure fuel gas and lower fin
Unit connects, and the outlet of low-pressure fuel gas is connect with upper fin unit.
Preferably, the upper fin unit and lower fin unit include the strip of paper used for sealing of both sides, and it is arranged in two side seals
Low pressure fin between item.
The utility model uses above-mentioned technical proposal, the technical solution be related to it is a kind of for nitrogen in tail gas, it is ammonia, methane purifying
High-pressure plate-fin heat exchanger, the high-pressure plate-fin heat exchanger compared to traditional fin heat exchanger increase matrix type enhancing branch
Frame, matrix type enhance holder and are equipped with multiple matrix units, and high pressure fin is equipped in each matrix unit；With this configuration,
The brazing area that matrix type enhancing holder expands two neighboring matrix unit makes its balanced pressure-bearing, the setting in first fluid channel
It can ensure that fluid proper flow, bleed-off passage of soldering between upper and lower two matrix units are solved well in vacuum
The extraction of oxygen and volatilization gas under brazing state.In conclusion the high-pressure plate-fin heat exchanger uses simply and reliablely
Enhancing structure, to make the anti-high-voltage performance of high-pressure channel greatly improve, and sealing more safety, with reliably, this structure passes through
Its burst pressure of explosion bulge test can reach 60MPa.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the utility model.
Fig. 2 is the side structure schematic diagram of the utility model.
Fig. 3 is the structural schematic diagram in high pressure exhaust gas channel or high pressure hydrogen rich gas channel.
Fig. 4 is the diagrammatic cross-section for sealing framework.
Fig. 5 is the partial enlarged view in high pressure exhaust gas channel or high pressure hydrogen rich gas channel.
Fig. 6 is the structural schematic diagram of reinforcing element.
Fig. 7 is the structural schematic diagram in low-pressure fuel gas channel.
Fig. 8 is the structural schematic diagram of gas-liquid mixed part.
Specific implementation mode
Below in conjunction with the accompanying drawings, the preferred embodiment of the utility model is described in further detail.
It is a kind of for nitrogen, ammonia, methane purifying high-pressure plate-fin heat exchanger in tail gas, including shell as shown in Fig. 1~8
1, and the high pressure exhaust gas channel 2, high pressure hydrogen rich gas channel 3 and the low-pressure fuel gas channel 4 that are arranged inside shell 1；The shell
Body 1 is equipped with high pressure hydrogen rich gas import 11, high pressure hydrogen rich gas outlet 12, high pressure exhaust gas import 13, high pressure exhaust gas outlet 14, low pressure
Fuel gas inlet 15, low-pressure fuel gas-liquid import 16 and low-pressure fuel gas outlet 17；The high pressure hydrogen rich gas import 11 and high pressure
It is communicated by high pressure hydrogen rich gas channel 3 between hydrogen rich gas outlet 12, is led between high pressure exhaust gas import 13 and high pressure exhaust gas outlet 14
It crosses high pressure exhaust gas channel 2 to communicate, low-pressure fuel gas import 15, low-pressure fuel gas-liquid import 16 and low-pressure fuel gas outlet 17 pass through
Low-pressure fuel gas channel 4 communicates.
The high pressure exhaust gas channel 2, high pressure hydrogen rich gas channel 3, which include matrix type, enhances holder 21, and is arranged in square
Formation enhances the import guide 22 of 21 top of holder, and the outlet flow deflector below matrix type enhancing holder 21 is arranged
23.The high pressure exhaust gas channel 2 and high pressure hydrogen rich gas channel 3 further include sealing framework 24；It seals framework 24 and surrounds import water conservancy diversion
Piece 22, matrix type enhancing holder 21 and outlet flow deflector 23 are arranged；Multiple seal grooves 25 are offered in the sealing framework 24.It should
Framework 24 is sealed in technical solution, in structure realizes anti-leak under high pressure, and brazing flux can immerse after liquidus curve dissolves
Into the seal line of high-pressure channel sealing element, good anti-leak blocking is formd.The matrix type enhancing holder 21 is equipped with more
A matrix unit 26, the matrix type enhancing holder 21 between two adjacent matrix units 26 of upper and lower directions are equipped with first fluid
Channel 27 communicates, and channel direction and import guide 22 to the fluid between outlet flow deflector 23 in first fluid channel 27 flow
Direction is parallel；Matrix type enhancing holder 21 between two adjacent matrix units 26 of left and right directions is equipped with bleed-off passage 28
It communicates, the channel direction and the channel direction in first fluid channel 27 of bleed-off passage 28 are perpendicular.
High pressure fin 29 is equipped in above-mentioned each matrix unit 26, high pressure fin 29 is to saw finned, punching shape or straight
The wing square of shape, high pressure fin 29 is 1-1.5 millimeters, and fin thickness is 0.5-0.6 millimeters.The high pressure exhaust gas channel 2 and high pressure
Several reinforcing elements 20 are also embedded in high pressure fin 29 in the matrix unit 26 in hydrogen rich gas channel 3, in reinforcing element 20
Equipped with multiple second fluid channels 201, channel direction and the import guide 22 to outlet flow deflector 23 in second fluid channel 201
Between fluid flow direction it is parallel.In above-mentioned technical proposal.Two brazing surfaces up and down of reinforcing element 20 so that high pressure is logical
The pressure in road reduces, and second fluid channel 201 thereon can very easily fluid pass in and out.
Low-pressure fuel gas channel 4 includes gas-liquid mixed part 41, and is arranged in about 41 both sides of gas-liquid mixed part
Upper fin unit 42 and lower fin unit 43；41 horizontal direction of gas-liquid mixed part is provided with fuel gas-liquid channel 44, longitudinal
Direction is provided with fuel gas passageway 45, and fuel gas-liquid channel 44 and fuel gas passageway 45 communicate, upper fin unit 42 and lower fin
Unit 43 is communicated by fuel gas passageway 45；The low-pressure fuel gas-liquid import 16 is connect with the fuel gas-liquid channel 44, low
Pressurized fuel gas import 15 is connect with lower fin unit 43, and low-pressure fuel gas outlet 17 is connect with upper fin unit 42.The upper fin
Blade unit 42 and lower fin unit 43 include the strip of paper used for sealing 46 of both sides, and the low pressure fin being arranged between two side sealing strips 46
47。
Above-mentioned high-pressure plate-fin heat exchanger in use, high pressure exhaust gas with 23 DEG C of temperature, pressure 12Mpa by high pressure exhaust gas import
13 enter high pressure exhaust gas collection chamber, -190 DEG C are cooled to by high pressure exhaust gas channel 2 and high pressure exhaust gas collection chamber, finally by high pressure
Offgas outlet 14 goes out heat exchanger.High pressure hydrogen rich gas is entered with -196 DEG C of temperature, pressure 11.8Mpa by high pressure hydrogen rich gas import 11 high
Hydrogen rich gas collection chamber is pressed, by high pressure hydrogen rich gas channel 3 and high pressure hydrogen rich gas collection chamber rewarming to 20 DEG C, finally by high pressure hydrogen-rich
Gas outlet 12 goes out heat exchanger.Low-pressure fuel gas is entered for 0.3Mpa by low-pressure fuel gas import 15 low with -196 DEG C of temperature, pressure
Pressurized fuel gas collection chamber, by low-pressure fuel gas channel, low-pressure fuel gas collection chamber rewarming to 20 DEG C, finally by going out low-pressure fuel
Gas exports 17 heat exchangers.Low-pressure fuel gas (liquid) with -196 DEG C of temperature, pressure be 0.3Mpa by low-pressure fuel gas-liquid import 16
Fuel gas fluid-tight head enter, by low-pressure fuel gas channel, low-pressure fuel gas collection chamber rewarming to 20 DEG C, finally by going out low pressure
Fuel gas exports 17 heat exchangers.
In conclusion the technical solution be related to it is a kind of for nitrogen, ammonia, methane purifying high pressure plate fin heat-exchanging in tail gas
Device, which increases matrix type compared to traditional fin heat exchanger enhances holder 21, matrix type enhancing
Holder 21 is equipped with multiple matrix units 26, and high pressure fin 29 is equipped in each matrix unit 26；With this configuration, matrix type
The brazing area that enhancing holder 21 expands two neighboring matrix unit 26 makes its balanced pressure-bearing, the setting in first fluid channel 27
It can ensure that fluid proper flow between upper and lower two matrix units 26, the bleed-off passage 28 of soldering solve well
The extraction of oxygen and volatilization gas under vacuum brazing state.In conclusion the high-pressure plate-fin heat exchanger uses and simply may be used
By ground enhancing structure, to make the anti-high-voltage performance of high-pressure channel greatly improve, and more safety and reliable, this structure are sealed
By explosion bulge test, its burst pressure can reach 60MPa.
It is used in the large chemical complex of ammonia and 520,000 tons of urea if the utility model is synthesized at 300,000 tons, heat exchange property
Better than design objective, resistance meets technique needs.Existed around heat exchange of heat pipe price using original double companion's aluminium in set of device
More than 1800 ten thousand yuans, and use high-pressure plate-fin heat exchanger price for 1,620,000 yuans.This technology can be extended to sky
Dividing on the high pressure main heat exchanger used on upper Internal-compression flow, the current country is the high pressure main heat exchanger of import foreign countries, due to
Plate-fin heat exchanger belongs to efficient, compact heat exchanger, as the demand of the high pressure heat exchanger of domestic device is continuously increased, this skill
Promoting the use of for art will bring extensive Social benefit and economic benefit to society.
Claims (6)
1. it is a kind of for nitrogen, ammonia, methane purifying high-pressure plate-fin heat exchanger in tail gas, including shell, and be arranged in shell
Internal high pressure exhaust gas channel, high pressure hydrogen rich gas channel and low-pressure fuel gas channel；The shell be equipped with high pressure hydrogen rich gas into
Mouth, the outlet of high pressure hydrogen rich gas, high pressure exhaust gas import, high pressure exhaust gas outlet, the import of low-pressure fuel gas, the import of low-pressure fuel gas-liquid and
Low-pressure fuel gas exports；The high pressure hydrogen rich gas import is communicated between being exported with high pressure hydrogen rich gas by high pressure hydrogen rich gas channel,
It is communicated by high pressure exhaust gas channel between high pressure exhaust gas import and high pressure exhaust gas outlet, the import of low-pressure fuel gas, low-pressure fuel gas
Liquid import and the outlet of low-pressure fuel gas are communicated by low-pressure fuel gas channel；It is characterized in that：The high pressure exhaust gas channel, high pressure
Hydrogen rich gas channel, which includes matrix type, enhances holder, and the import guide above matrix type enhancing holder is arranged, and
Outlet flow deflector below matrix type enhancing holder is set；The matrix type enhancing holder is equipped with multiple matrix units, often
High pressure fin is equipped in a matrix unit；It is set on matrix type enhancing holder between two adjacent matrix units of upper and lower directions
There is first fluid channel to communicate, the fluid stream between channel direction and the import guide extremely outlet flow deflector in first fluid channel
Dynamic direction is parallel；Matrix type enhancing holder between two adjacent matrix units of left and right directions is equipped with bleed-off passage phase
Logical, the channel direction and the channel direction in first fluid channel of bleed-off passage are perpendicular.
2. it is according to claim 1 a kind of for nitrogen, ammonia, methane purifying high-pressure plate-fin heat exchanger in tail gas, it is special
Sign is：It is also embedded with several in high pressure fin in the matrix unit in the high pressure exhaust gas channel and high pressure hydrogen rich gas channel
Reinforcing element, reinforcing element is interior to be equipped with multiple second fluid channels, and the channel direction and import guide in second fluid channel are extremely
The fluid flow direction exported between flow deflector is parallel.
3. it is according to claim 1 or 2 a kind of for nitrogen, ammonia, methane purifying high-pressure plate-fin heat exchanger in tail gas,
It is characterized in that：The high pressure exhaust gas channel and high pressure hydrogen rich gas channel further include sealing framework；It seals framework and surrounds import water conservancy diversion
Piece, matrix type enhancing holder and outlet flow deflector setting；Multiple seal grooves are offered in the sealing framework.
4. it is according to claim 3 a kind of for nitrogen, ammonia, methane purifying high-pressure plate-fin heat exchanger in tail gas, it is special
Sign is：The high pressure fin is to saw finned, punching shape or flat shape, and the wing square of high pressure fin is 1-1.5 millimeters, fin thickness
It is 0.5-0.6 millimeters.
5. it is according to claim 1 a kind of for nitrogen, ammonia, methane purifying high-pressure plate-fin heat exchanger in tail gas, it is special
Sign is：Low-pressure fuel gas channel includes gas-liquid mixed part, and the upper fin of both sides is arranged above and below gas-liquid mixed part
Unit and lower fin unit；The gas-liquid mixed part horizontal direction is provided with fuel gas-liquid channel, and longitudinal direction is provided with fuel
Gas channel, fuel gas-liquid channel and fuel gas passageway communicate, and upper fin unit and lower fin unit are communicated by fuel gas passageway；
The low-pressure fuel gas-liquid import is connect with the fuel gas-liquid channel, and the import of low-pressure fuel gas is connect with lower fin unit, low
The outlet of pressurized fuel gas is connect with upper fin unit.
6. it is according to claim 5 a kind of for nitrogen, ammonia, methane purifying high-pressure plate-fin heat exchanger in tail gas, it is special
Sign is：The upper fin unit and lower fin unit include the strip of paper used for sealing of both sides, and are arranged low between two side sealing strips
Press fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820172649.5U CN207907738U (en) | 2018-01-31 | 2018-01-31 | It is a kind of to be used for nitrogen, ammonia, methane purifying high-pressure plate-fin heat exchanger in tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820172649.5U CN207907738U (en) | 2018-01-31 | 2018-01-31 | It is a kind of to be used for nitrogen, ammonia, methane purifying high-pressure plate-fin heat exchanger in tail gas |
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| CN207907738U true CN207907738U (en) | 2018-09-25 |
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| CN201820172649.5U Active CN207907738U (en) | 2018-01-31 | 2018-01-31 | It is a kind of to be used for nitrogen, ammonia, methane purifying high-pressure plate-fin heat exchanger in tail gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426472A (en) * | 2018-01-31 | 2018-08-21 | 杭州福斯达深冷装备股份有限公司 | It is a kind of to be used for nitrogen, ammonia, methane purifying high-pressure plate-fin heat exchanger in tail gas |
-
2018
- 2018-01-31 CN CN201820172649.5U patent/CN207907738U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426472A (en) * | 2018-01-31 | 2018-08-21 | 杭州福斯达深冷装备股份有限公司 | It is a kind of to be used for nitrogen, ammonia, methane purifying high-pressure plate-fin heat exchanger in tail gas |
| CN108426472B (en) * | 2018-01-31 | 2023-09-12 | 杭州福斯达深冷装备股份有限公司 | High-pressure plate-fin heat exchanger for purifying nitrogen, ammonia and methane in tail gas |
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