CN110118495A - A kind of high pressure resistant compact heat exchanger - Google Patents
A kind of high pressure resistant compact heat exchanger Download PDFInfo
- Publication number
- CN110118495A CN110118495A CN201910479645.0A CN201910479645A CN110118495A CN 110118495 A CN110118495 A CN 110118495A CN 201910479645 A CN201910479645 A CN 201910479645A CN 110118495 A CN110118495 A CN 110118495A
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- Prior art keywords
- heat exchanger
- shell
- tube
- cylinder
- liquid
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
Abstract
The invention discloses a kind of high pressure resistant compact heat exchangers, including shell, the heat exchanger tube demolition set for being set to enclosure interior, attemperator, cast core and be connected to heat exchanger tube both ends wears shell adapter, wherein heat exchanger tube is formed by whole high-voltage tube bending, the spiral of multiple and different elbow radius is arranged structure, the heat exchanger tube is connect with high pressure hydrogen inlet and outlet piping after shell respectively by wearing the sealing of shell adapter, and the liquid in-out flange at shell both ends is connect with coolant liquid inlet and outlet piping respectively.The present invention effectively solves the problems, such as high pressure hydrogen tube side pressure resistance, and realizes maximum heat exchange area and exchange capability of heat under volume in a limited space；By the special construction of shell, guarantee coolant flow uniformity, avoid flow dead zone, mobility is improved by both ends blade design, breaks fluid boundary layer to strengthen heat dissipation.
Description
Technical field
The invention belongs to shell-and-tube heat exchanger technical fields, and in particular to a kind of high pressure resistant compact heat exchanger.
Background technique
It is given in vehicle-mounted hydrogen-feeding system hydrogenation process in high pressure hydrogen, if the hydrogen of temperature control measure is not taken quickly to fill, meeting
Because of the heat of compression and joule-Thompson effect of hydrogen filling process, so that on temperature in vehicle-mounted hydrogen-feeding system in gas cylinder is quick
It rises, the license use temperature range of the remote hydrogen bottle that overstocks brings great security risk.Therefore before hydrogen filling, it is necessary to take hydrogen
Gas precooling treatment.
Currently there are shell-and-tube heat exchanger and spiral tube heat exchanger can not be suitable for high pressure (be greater than
20MPa) the use environment of hydrogen.High Pressure Hydrogen tracheae pipe side need to use whole high-voltage tube or more high-voltage tubes to pass through high pressure adapter
No matter series-parallel connection which kind of above-mentioned mode is used, currently on the market the heat exchanger of existing structure in a limited space in equal nothing
Method reaches heat transfer requirements, and above-mentioned heat exchanger is not suitable for the use occasion of high pressure hydrogen, and in existing spiral tube heat exchanger
Portion can not install baffle plate and carry out flow-disturbing to break fluid boundary layer and then improve exchange capability of heat, therefore need to propose a kind of novel
High pressure resistant compact heat exchanger is to solve the problems, such as to add hydrogen pre-cooling.
Summary of the invention
It is preferable high pressure resistant tight that the technical problem to be solved by the present invention is to provide a kind of reasonable in design and heat transfer effects
Gather type heat exchanger.
The present invention adopts the following technical scheme that a kind of high pressure resistant compact heat exchanger is special to solve above-mentioned technical problem
What sign was to include shell, and was set to the heat exchanger tube of enclosure interior and is connected to heat exchanger tube both ends wears shell adapter, wherein exchanging heat
Pipe is formed by whole high-voltage tube bending, and the spiral for being designed as different elbow radius is arranged structure, which is turned by wearing shell
Joint sealing run through shell after connect respectively with high pressure hydrogen inlet and outlet piping, the liquid in-out flange at shell both ends respectively with coolant liquid
Inlet and outlet piping connection.
Preferably, the hull outside is equipped with attemperator for being thermally shielded protection to shell, in the attemperator
Set thermal insulation material, preferably polyurethanes foamed material or heat-preservation cotton.
Preferably, demolition set is installed on the shell, for letting out under high pressure hydrogen leak case to shell
Pressure protection, the burst pressure of the demolition set are greater than shell-side fluid operating pressure and are less than housing design pressure.
Preferably, the heat exchanger tube is rolled over for different elbow radius for whole metal tube, preferably 316L stainless steel seamless pipe
Spiral made of curved is arranged the heat exchanger tube of structure.
Preferably, the shell include cylinder, inner cylinder, the end socket for being set to cylinder both ends, be set on end socket into
Liquid flange, the liquid in-out end plate for wearing shell adapter mounting base and be fixed on cylinder and inner cylinder both ends being set on cylinder out,
Wherein head design is the higher ellipsoidal structure of compressive resistance, and barrel diameter matches with heat exchanger tube maximum outside diameter, cylinder and
There are the gap for casting core casting between heat exchanger tube, internal thread pipe outside diameter size used, cylinder when gap thickness is not less than casting
Body is welded by metal plate roll bending or is process by metal seamless tube, wears shell adapter and is mounted on and wears shell adapter mounting base
On, heat exchanger tube is realized through cylinder and can guarantee the leakproofness between heat exchanger tube and cylinder, and inner cylinder outer diameter and heat exchanger tube are minimum
Internal diameter matches, and equally there are the gap for casting core casting between inner cylinder and heat exchanger tube, gap thickness is not less than casting
Shi Suoyong internal thread pipe outside diameter size, liquid in-out end plate are equipped with the through-hole of connection cylinder and end socket, which is along the circumferential direction
Uniformly distributed multiple kidney-shaped circular holes.
Preferably, four kidney-shaped circular holes of connection cylinder and end socket are along the circumferential direction evenly equipped on the liquid in-out end plate,
45 ° are differed so that kidney-shaped on the liquid in-out end plate of front and rear sides along axial-rotation angle when the liquid in-out end plate installation of front and rear sides
Circular hole dislocation is opposite, for guaranteeing that the uniformity of flowing avoids coolant liquid from generating dead angle in cylinder and influences heat transfer effect.
Preferably, it is separately installed with blade in the cylinder liquid feeding side or the end socket of two sides, after coolant liquid enters end socket,
Enter cylinder after blades flows, coolant liquid is radially formed centrifugal force after blade, and radial centrifugal force makes coolant liquid exist
Cylinder inner rotary shaft breaks fluid boundary layer by the flow-disturbing of fluid for increasing flow-disturbing of the coolant liquid in flowing to circulation
To enhance heat exchange property.
Preferably, the heat exchanger tube and inner cylinder and cylinder pass through cast aluminium in the cylinder and inner cylinder of shell after the assembly is completed
And casting core is formed between heat exchanger tube, the both ends of the casting core are reserved with respectively for coolant liquid collection between liquid in-out end plate
The cavity of liquid and liquid separation.
Preferably, the casting core includes fiber tube in stainless steel, cast aluminium and diversion trench, fiber tube and diversion trench in stainless steel
Carry out before casting it is pre-buried, interior fiber tube be straight tube, can be arranged by various geometric array formulas, preferably along axial shell and tube Circle-Array
Column arrangement, there may be staggered places for fiber tube and heat exchanger tube in entire casting core, part for interior fiber tube, reduce internal thread length of tube
And be connected to using diversion trench with other interior fiber tube runners, when fiber tube and diversion trench are tightly connected to guarantee casting in stainless steel
Cast aluminium will not enter in stainless steel inside fiber tube and diversion trench, and coolant liquid is realized by fiber tube in stainless steel and diversion trench in cylinder
Interior flowing is machined with the internal screw thread for increasing flow-disturbing and radiating surface in stainless steel, is realized by diversion trench adjacent in the pipe of fiber tube
Connection in stainless steel between fiber tube runner.
Compared with the prior art, the invention has the following beneficial effects:
1, by cast aluminium core design, the present invention effectively solves the problems, such as the pressure resistance of high pressure hydrogen tube side (being greater than 100MPa), and is having
Maximum heat exchange area and exchange capability of heat are realized under the spatial volume of limit；
2, the present invention is guaranteed coolant flow uniformity, is avoided flow dead zone, pass through both ends blade by the special construction of shell
Design improves mobility, breaks fluid boundary layer to strengthen heat dissipation；
3, under the conditions of identical parameters, the patent (Patent No. ZL201410301723.5) of Tongji University's application is according to shell-and-tube
The heat exchanger shape of design of heat exchanger is 250 × 250 × 1500mm, and heretofore described heat exchanger structure reaches same heat exchange
In the case where ability, the outer dimension of heat exchanger is only 250 × 250 × 800mm, and it is less to wear shell adapter quantity, reveals wind
Danger is smaller；
4, the present invention increases the voltage endurance capability of heat exchanger tube by casting core, and heat exchange area is changed by original heat exchanging pipe wall
Heat is changed to the heat exchange of stainless steel internal thread tube wall face, and heat exchange area is 2.7 times or so for not increasing casting core, and casting core is cast aluminium
Material, thermal coefficient are much higher than the thermal coefficient of heat exchanger tube stainless steel, therefore thus increased thermal conduction resistance is negligible；
5, viscosity is very big under cryogenic for cryogenic liquid, and when the fluid is flowing, and boundary layer is thicker, passes through stainless steel internal thread
Helicitic texture inside pipe can increase fluid flow-disturbing and heat exchange area, greatly improve exchange capability of heat.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is half section structure diagram of the invention；
Fig. 3 is partial structure sectional view of the invention；
Fig. 4 is the structural schematic diagram of heat exchanger tube in the present invention；
Fig. 5 is the side view of heat exchanger tube in the present invention；
Fig. 6 is the structural schematic diagram of shell in the present invention；
Fig. 7 is the structural schematic diagram of liquid in-out end plate in the present invention；
Fig. 8 is the mounting structure schematic diagram of liquid in-out end plate in the present invention；
Fig. 9 is the structural schematic diagram that core is cast in the present invention；
Figure 10 is casting core partial structural diagram in the present invention.
In figure: 1- shell, 2- attemperator, 3- heat exchanger tube, 4- wear shell adapter, 5- demolition set, and 6- casts core, 1-
1- end socket, 1-2- cylinder, 1-3- wear shell adapter mounting base, 1-4- inner cylinder, 1-5- liquid in-out end plate, 1-6- blade, 1-7-
Liquid in-out flange, fiber tube in 6-1- stainless steel, 6-2- cast aluminium, 6-3- diversion trench.
Specific embodiment
In conjunction with attached drawing, the technical schemes of the invention are described in detail, a kind of high pressure resistant compact heat exchanger, including shell 1, sets
The heat exchanger tube 3 that is placed in inside shell 1 and be connected to 3 both ends of heat exchanger tube wear shell adapter 4, wherein heat exchanger tube 3 is by whole height
Pressure pipe bending forms, and the spiral of multiple and different elbow radius is arranged structure, which is run through by wearing the sealing of shell adapter 4
It is connect respectively with high pressure gas inlet and outlet piping after shell 1, the liquid in-out flange at 1 both ends of shell connects with coolant liquid inlet and outlet piping respectively
It connects.Cooling high pressure gas is needed to walk heat exchanger tube 3, i.e. pipe side；Cryogenic liquid walks 1 inside of shell, i.e. shell-side；Coolant liquid is in shell
In side directly contacted with high pressure hydrogen in heat exchanger tube 3 carry out heat exchange, due to heat exchanger tube 3 formed by whole high-voltage tube bending and with
Shell adapter 4 is worn using dedicated at 1 switching of shell, therefore solves the problems, such as hydrogen gas side super-pressure pressure resistance.
The attemperator 2 for being thermally shielded protection to shell 1, the attemperator 2 are equipped on the outside of shell 1 of the present invention
For polyurethane foam material or heat-preservation cotton.Demolition set 5 is installed on the shell 1, under high pressure hydrogen leak case
Decompression protection is carried out to shell 1, the burst pressure of the demolition set 5 is greater than shell-side fluid operating pressure and is less than housing design pressure
Power.The heat exchanger tube 3 is whole 316L stainless steel seamless pipe, and elbow radius is respectively spiral shell made of 45mm, 70mm, 90mm bending
Rotation set sets the heat exchanger tube of structure.
Shell 1 of the present invention includes cylinder 1-2, inner cylinder 1-4, the end socket 1-1 for being set to the both ends cylinder 1-2, setting
In on end socket 1-1 liquid in-out flange 1-7, be set to wearing shell adapter mounting base 1-3 and be fixed on cylinder 1- on cylinder 1-2
The liquid in-out end plate 1-5 at the both ends 2 and inner cylinder 1-4, wherein end socket 1-1 is designed as the higher ellipsoidal structure of compressive resistance, cylinder
Body 1-2 diameter matches with 3 maximum outside diameter of heat exchanger tube, and there are between the casting casting of core 6 between cylinder 1-2 and heat exchanger tube 3
Gap, interior fiber tube 6-1 outer diameter used when gap thickness is not less than casting, cylinder 1-2 be welded by metal plate roll bending or by
Metal seamless tube is process, and is worn shell adapter 4 and is mounted on and wears on shell adapter mounting base 1-3, realizes that heat exchanger tube 3 runs through cylinder
1-2 and can guarantee the leakproofness between heat exchanger tube 3 and cylinder 1-2, inner cylinder 1-4 outer diameter matches with 3 minimum diameter of heat exchanger tube,
Equally there are the gaps cast for casting core 6 between inner cylinder 1-4 and heat exchanger tube 3, used when gap thickness is not less than casting
Interior fiber tube 6-1 outer diameter, inner cylinder 1-4 improve the flowing speed of coolant liquid under certain flow for reducing casting 6 volume of core
Degree is to enhance heat exchange, and liquid in-out end plate 1-5 is equipped with the through-hole of connection cylinder 1-2 and end socket 1-1, which is along the circumferential direction
Uniformly distributed multiple kidney-shaped circular holes.
Four waists of connection cylinder 1-2 and end socket 1-1 are along the circumferential direction evenly equipped on liquid in-out end plate 1-5 of the present invention
Shape circular hole differs 45 ° so that front and rear sides liquid in-out end along axial-rotation angle when the liquid in-out end plate 1-5 of front and rear sides is installed
Kidney-shaped circular hole dislocation on plate 1-5 is opposite, for guarantees the uniformity flowed avoid coolant liquid generate dead angle in cylinder 1-2 and
Influence heat transfer effect.
It is separately installed with blade 1-6 in cylinder 1-2 liquid feeding side of the present invention or the end socket of two sides, when coolant liquid enters envelope
After head 1-1, enter cylinder 1-2 after blade 1-6 flowing, coolant liquid is radially formed centrifugal force after blade 1-6, it is radial from
Mental and physical efforts make coolant liquid pass through fluid for increasing flow-disturbing of the coolant liquid in flowing to circulation in cylinder 1-2 inner rotary shaft
Flow-disturbing breaks fluid boundary layer to enhance heat exchange property.
Heat exchanger tube of the present invention 3 in shell 1 cylinder 1-2 and inner cylinder 1-4 pass through cast aluminium 6-2 after the assembly is completed and exist
Between 1 cylinder 1-2 of shell and inner cylinder 1-4 and heat exchanger tube 3 formed casting core 6, the both ends of the casting core 6 respectively with disengaging
The cavity for coolant liquid liquid collecting and liquid separation is reserved between liquid end plate 1-5.
Casting core 6 of the present invention includes fiber tube 6-1, cast aluminium 6-2 and diversion trench 6-3 in stainless steel, stainless steel internal thread
Pipe 6-1 and diversion trench 6-3 carry out before casting it is pre-buried, interior fiber tube 6-1 be straight tube, can be arranged by various geometric array formulas, preferably
To arrange along axial shell and tube circumference array, fiber tube 6-1 and heat exchanger tube 3 can in entire casting core, part by interior fiber tube 6-1
Staggered place can be generated, interior fiber tube 6-1 length is reduced and is connected to using diversion trench with other interior fiber tube 6-1 runners, stainless steel
Cast aluminium 6-2 will not when interior fiber tube 6-1 and diversion trench 6-3 is tightly connected by welding manner or other connection types to guarantee casting
In into stainless steel inside fiber tube 6-1 and diversion trench 6-3, coolant liquid is realized by fiber tube 6-1 in stainless steel and diversion trench 6-3
Flowing in cylinder 1-2 is machined with the internal screw thread for increasing flow-disturbing and radiating surface in stainless steel, passes through water conservancy diversion in the pipe of fiber tube 6-1
Slot 6-3 realizes the connection in adjacent stainless steel between fiber tube 6-1 runner.
Basic principle of the invention, main feature and advantage has been shown and described above, do not depart from spirit of that invention and
Under the premise of range, there are also various changes and modifications, these changes and improvements to both fall within claimed invention by the present invention
Range.
Claims (9)
1. a kind of high pressure resistant compact heat exchanger, it is characterised in that including shell, be set to heat exchanger tube and the connection of enclosure interior
Shell adapter is worn in heat exchanger tube both ends, wherein heat exchanger tube is formed by whole high-voltage tube bending, is designed as multiple and different bend pipes
The spiral of radius is arranged structure, the heat exchanger tube by wear the sealing of shell adapter after the shell respectively with high pressure gas inlet and outlet piping
Connection, the liquid in-out flange at shell both ends are connect with coolant liquid inlet and outlet piping respectively.
2. high pressure resistant compact heat exchanger according to claim 1, it is characterised in that: the hull outside be equipped with for pair
Shell is thermally shielded the attemperator of protection, the attemperator built-in heat insulation material, and thermal insulation material is preferably polyurethanes foaming
Material or heat-preservation cotton.
3. high pressure resistant compact heat exchanger according to claim 1, it is characterised in that: be equipped with explosion dress on the shell
It sets, for carrying out decompression protection to shell under high pressure hydrogen leak case, the burst pressure of the demolition set is greater than shell side stream
Body running pressure is simultaneously less than housing design pressure.
4. high pressure resistant compact heat exchanger according to claim 1, it is characterised in that: the heat exchanger tube is for whole metal
Pipe, preferably 316L stainless steel seamless pipe are arranged the heat exchanger tube of structure for spiral made of different elbow radius bendings.
5. high pressure resistant compact heat exchanger according to claim 1, it is characterised in that: the shell includes cylinder, inner cylinder
Body, the liquid in-out flange being set on end socket, is set on cylinder and wears the installation of shell adapter the end socket for being set to cylinder both ends
Seat and the liquid in-out end plate for being fixed on cylinder and inner cylinder both ends, wherein head design is the higher ellipse knot of compressive resistance
Structure, barrel diameter match with heat exchanger tube maximum outside diameter, between cylinder and heat exchanger tube there are for casting core casting gap,
Internal thread pipe outside diameter size used, cylinder are welded by metal plate roll bending or are added by metal seamless tube when gap thickness is not less than casting
Work forms, and wears shell adapter and is mounted on and wears in shell adapter mounting base, realize heat exchanger tube through cylinder and can guarantee heat exchanger tube with
Leakproofness between cylinder, inner cylinder outer diameter match with heat exchanger tube minimum diameter, between inner cylinder and heat exchanger tube equally there are
For the gap of casting core casting, internal thread pipe outside diameter size used, liquid in-out end plate are equipped with when gap thickness is not less than casting
It is connected to the through-hole of cylinder and end socket, which is along the circumferential direction uniformly distributed multiple kidney-shaped circular holes.
6. high pressure resistant compact heat exchanger according to claim 5, it is characterised in that: on the liquid in-out end plate circumferentially
Direction is evenly equipped with four kidney-shaped circular holes of connection cylinder and end socket, along axial-rotation angle when the liquid in-out end plate of front and rear sides is installed
45 ° of difference is so that the kidney-shaped circular hole dislocation on the liquid in-out end plate of front and rear sides is opposite, for guaranteeing that the uniformity of flowing avoids
Coolant liquid generates dead angle in cylinder and influences heat transfer effect.
7. high pressure resistant compact heat exchanger according to claim 5, it is characterised in that: the cylinder liquid feeding side or two sides
It is separately installed with blade in end socket, after coolant liquid enters end socket, cylinder is entered after blades flows, coolant liquid is after blade
It is radially formed centrifugal force, radial centrifugal force is flowing coolant liquid, to circulation, for increasing coolant liquid in cylinder inner rotary shaft
Flow-disturbing when dynamic, breaks fluid boundary layer by the flow-disturbing of fluid to enhance heat exchange property.
8. high pressure resistant compact heat exchanger according to claim 1, it is characterised in that: the heat exchanger tube and inner cylinder and cylinder
Body passes through cast aluminium after the assembly is completed and forms casting core between the cylinder and inner cylinder and heat exchanger tube of shell, the casting core
Both ends are reserved with the cavity for coolant liquid liquid collecting and liquid separation between liquid in-out end plate respectively.
9. high pressure resistant compact heat exchanger according to claim 8, it is characterised in that: the casting core includes stainless steel
Interior fiber tube, cast aluminium and diversion trench, fiber tube and diversion trench carry out pre-buried before casting in stainless steel, and interior fiber tube is straight tube, can be by each
Kind geometric array formula arrangement, preferably arranges along axial shell and tube circumference array, and interior fiber tube, which runs through, entirely casts core, in part
Fiber tube and heat exchanger tube are reduced internal thread length of tube and are connected using diversion trench with other interior fiber tube runners there may be staggered place
Logical, interior fiber tube and diversion trench, which are tightly connected cast aluminium when guaranteeing casting, will not enter in stainless steel inside fiber tube and diversion trench, cold
But liquid is machined with increase in the pipe of fiber tube in the intracorporal flowing of cylinder, stainless steel and is disturbed by fiber tube in stainless steel and diversion trench realization
The internal screw thread of stream and radiating surface, realizes the connection in adjacent stainless steel between fiber tube runner by diversion trench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910479645.0A CN110118495A (en) | 2019-06-04 | 2019-06-04 | A kind of high pressure resistant compact heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910479645.0A CN110118495A (en) | 2019-06-04 | 2019-06-04 | A kind of high pressure resistant compact heat exchanger |
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| Publication Number | Publication Date |
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| CN110118495A true CN110118495A (en) | 2019-08-13 |
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ID=67523713
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| CN201910479645.0A Pending CN110118495A (en) | 2019-06-04 | 2019-06-04 | A kind of high pressure resistant compact heat exchanger |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595229A (en) * | 2019-09-19 | 2019-12-20 | 国网四川省电力公司电力科学研究院 | Variable-diameter spiral tube type compressed air energy storage and heat exchange device and system |
| CN113803635A (en) * | 2021-09-08 | 2021-12-17 | 金龙联合汽车工业（苏州）有限公司 | Hydrogen cooling device for hydrogen fuel automobile |
| CN114484275A (en) * | 2022-01-26 | 2022-05-13 | 海南天宇科技集团有限公司 | Hydrogen storage bottle integration frame with high-efficient heat transfer function |
| CN116907242A (en) * | 2023-09-13 | 2023-10-20 | 南京冷德节能科技有限公司 | Heat exchanger, system and working method of carbon dioxide heat source tower heat pump unit |
-
2019
- 2019-06-04 CN CN201910479645.0A patent/CN110118495A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595229A (en) * | 2019-09-19 | 2019-12-20 | 国网四川省电力公司电力科学研究院 | Variable-diameter spiral tube type compressed air energy storage and heat exchange device and system |
| CN113803635A (en) * | 2021-09-08 | 2021-12-17 | 金龙联合汽车工业（苏州）有限公司 | Hydrogen cooling device for hydrogen fuel automobile |
| CN114484275A (en) * | 2022-01-26 | 2022-05-13 | 海南天宇科技集团有限公司 | Hydrogen storage bottle integration frame with high-efficient heat transfer function |
| CN116907242A (en) * | 2023-09-13 | 2023-10-20 | 南京冷德节能科技有限公司 | Heat exchanger, system and working method of carbon dioxide heat source tower heat pump unit |
| CN116907242B (en) * | 2023-09-13 | 2023-12-15 | 南京冷德节能科技有限公司 | Heat exchanger, system and working method of carbon dioxide heat source tower heat pump unit |
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