CN108507221A - A kind of lithium bromide cold and hot water/heat pump unit using full Ti-heat exchanger - Google Patents
A kind of lithium bromide cold and hot water/heat pump unit using full Ti-heat exchanger Download PDFInfo
- Publication number
- CN108507221A CN108507221A CN201710114255.4A CN201710114255A CN108507221A CN 108507221 A CN108507221 A CN 108507221A CN 201710114255 A CN201710114255 A CN 201710114255A CN 108507221 A CN108507221 A CN 108507221A
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- Prior art keywords
- titanium
- heat exchanger
- tube
- pump unit
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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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
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- 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
- F28F21/086—Heat exchange elements made from metals or metal alloys from titanium or titanium alloys
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A kind of lithium bromide cold and hot water/heat pump unit using full Ti-heat exchanger, including multiple heat exchangers, the heat exchanger include titanium shell, the both ends of titanium shell are equipped with titanium tube plate, the side of titanium tube plate is equipped with chamber, and titanium heat exchanger tube is equipped in titanium shell, and titanium heat exchanger tube is set between two neighboring titanium tube plate；The chamber is made of titanium plate；Between adjacent two blocks of titanium tube plates, end welds together the titanium heat exchanger tube expanded joint with adjacent two blocks of titanium tube plates.One aspect of the present invention can ensure the highly corrosion resistant contacted with extraneous medium with the highly corrosion resistant and absorption cold-warm water/heat pump unit of solvent or steam or smoke contacts inside heat exchanger, to improve the service life heat exchange efficiency of complete machine；On the other hand, interface mechanical strength and good airproof performance are not likely to produce leakage between titanium heat exchanger tube and titanium tube plate.
Description
Technical field
The present invention relates to technical field of heat exchange, especially a kind of lithium bromide cold and hot water/heat pump machine using full Ti-heat exchanger
Group.
Background technology
The shell generally use mild steel of lithium bromide absorption cooling and warming water machine group or heat pump unit is as shell, copper pipe or not
Steel pipe become rusty as heat exchanger tube.
Although high using copper heat exchanger tube thermal coefficient, have the disadvantages that：1）Copper hardness is low, not sherardizing steel and mill
Damage；2）Copper easy tos produce oxide layer, and is easy fouling, and long-time service causes heat-transfer capability to decline；3）Copper not resistant to ammonia, sulfide
And the corrosion of acidic materials.
It is improved later, copper heat exchanger tube is replaced using stainless steel heat exchange tube, although hardness and corrosion resistance improve, but still
It has the disadvantages that：1）A large amount of existing chloride ion corrosions, are asked so as to cause spot corrosion, stress corrosion etc. during stainless steel is not water-fast
Topic；2）Stainless steel coefficient of thermal expansion causes carbon steel sheel and heat exchanger tube to exist higher than 50% as high-temperature generator carbon steel sheel
Expansion differs when work, generates larger stress, and then cause to damage；3）Stainless steel is generated in the case that incrusted under dirt
Corrosion（A kind of oxygen differential concentration corrosion）.
To solve the above-mentioned problems, stainless steel heat exchange tube is replaced using titanium heat exchanger tube in the prior art, achieved good
Effect still since titanium is a kind of material that coefficient of elasticity is high, to ensure not leaking extremely difficult, titanium for a long time by tube expansion
It can not be welded with steel class tube sheet.In addition, the tube sheet corrosion resistance of mild steel also can not show a candle to titanium, tube sheet corrosion will influence whole
Service life.
According to titanium-unit of the low-carbon steel composite board as heat exchanger shell material, although contact extraneous medium part is equal
For titanium, but unit casing remains as mild steel, is easy corrosion, needs to do preservative treatment.In addition, mild steel sections contact lithium bromide
Solution may chemically react and generate hydrogen, influence unit vacuum degree, reduce refrigerating efficiency, and after unit leaks into air
It can cause to corrode, generate dirt, reduce unit service life and heat exchange efficiency.
Invention content
The purpose of the present invention is overcome the above-mentioned insufficient of the prior art and strong, light-weight, the expanded joint that provides a kind of corrosion resistance
Lithium bromide cold and hot water/the heat pump unit for the full Ti-heat exchanger of use for adding welding airtightness good.
The technical scheme is that：A kind of lithium bromide cold and hot water/heat pump unit using full Ti-heat exchanger, including it is multiple
Heat exchanger, the heat exchanger include titanium shell, and the both ends of titanium shell are equipped with titanium tube plate, and the side of titanium tube plate is equipped with chamber, titanium shell
It is equipped with titanium heat exchanger tube in vivo, titanium heat exchanger tube is set between two neighboring titanium tube plate；The chamber is made of titanium plate；The titanium heat exchange
Between adjacent two blocks of titanium tube plates, end welds together pipe expanded joint with adjacent two blocks of titanium tube plates.
Said program has the following advantages：（1）Heat exchanger is all using titanium material so that it is in lithium bromide cold and hot water（Heat
Pump）There is no any corrosion under unit use environment, it is durable；（2）Titanium shell expands consistent at work with titanium heat exchanger tube, does not have
There is stress damage hidden danger, mobile end socket or expansion joint need not be used, parts are saved, reduce cost；（3）Titanium intensity is not close to
Become rusty steel, without erosion corrosion and abrasion；（4）Titanium surface oxide layer will not increase thickness, be not easy to fouling, and heat transfer energy is used for a long time
Power does not tend to decrease；（5）Titanium shell, titanium heat exchanger tube, titanium official plate and chamber titanium plate need not reserve corrosion allowance, thickness can reduce
It is the 1/2 of the materials such as copper pipe, and the density of titanium is only 1/2 of copper or so, therefore this unit can reduce material than conventional rack
Expect 70% or more weight, is conducive to transport installation, the especially positions such as roof, saves space；（6）Basic strong of de-swelling tube packaging
Outside degree and leakproofness, end and the titanium tube plate of titanium heat exchanger tube are welded, and sealing effect is reached；（7）Since heat exchanger is integrally adopted
With titanium material, it can ensure that all parts reach roughly the same service life, without frequently replacing component；（8）It is light-weight, it carries
The lightweight of high entire unit is horizontal.
Further, solder joint is equipped between the end of the titanium heat exchanger tube and the side of adjacent two blocks of titanium tube plates.By in titanium
Solder joint is arranged in the side of tube sheet, and welding is on the one hand convenient on the other hand to reach sealing effect, since titanium is a kind of coefficient of elasticity
High material, yield strength is very close with fracture strength, if tube expansion strength is insufficient, material will produce rebound, if tube expansion power
Measure it is excessive, then may cracking, therefore tube expansion to ensure for a long time do not leak it is extremely difficult；This programme after tube expansion by further setting
Solder joint is set, to improve leakproofness.
Further, the solder joint is set to the edge of titanium tube plate side；Or it is equipped on whole side of titanium tube plate side
Linear solder joint.It is linear structure that wherein linear solder joint, which refers to solder joint, is not a bit simple, the length of solder joint can be with titanium
The length of tube sheet side is identical or different.
Further, solder joint is equipped between the titanium shell and the side of titanium tube plate.It can be only between titanium shell and titanium tube plate
It is connected by solder joint；It will first can also weld between titanium shell and the contact surface of titanium tube plate, then further be reinforced by solder joint.
Further, the chamber is hydroecium, steam chest or smoke box.Wherein, steam chest is the chamber of steam type, and smoke box is flue gas type
Chamber.
Further, welding or fastener connection between the titanium plate of the chamber and titanium shell.
Further, the multiple heat exchanger includes absorber, condenser, evaporator and generator.
Further, the multiple heat exchanger further includes additional water heater.
In other words, heat exchanger can be absorber, condenser, evaporator, cryogenerator（Dual effect type）, additional water heater
（Direct combustion type）, generator（Single-action steam or hot-water type）, high-temperature generator（Economic benefits and social benefits steam or hot-water type）Deng.
Absorption cold-warm water/heat pump unit of the present invention especially contacts the portion of extraneous medium due to using full titanium matter
Point it is titanium material, has corrosion resistance splendid, service life is long, not oxidizable or fouling and the performance that keeps high efficiency to exchange heat.
Titanium heat exchanger tube is by the way of expansion joint welding, since expanded joint can ensure enough intensity, and has auxiliary close
Envelope acts on, and welding can ensure leakproofness, and provide certain intensity so that the air-tightness between titanium heat exchanger tube and titanium tube plate is more
Good, linking intensity higher.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the attachment structure schematic diagram of 1 titanium heat exchanger tube and titanium tube plate of the embodiment of the present invention.
Specific implementation mode
The present invention is described in further details below with reference to Figure of description and specific embodiment.
Embodiment 1
As depicted in figs. 1 and 2：A kind of lithium bromide cold and hot water/heat pump unit using full Ti-heat exchanger, including multiple heat exchangers,
That is absorber, condenser, evaporator and generator；Each heat exchanger includes titanium shell 1, and the both ends of titanium shell 1 are equipped with titanium tube
The side of plate 2, titanium tube plate 2 is equipped with chamber 3, titanium heat exchanger tube 4 is equipped in titanium shell 1, titanium heat exchanger tube 4 is set to two neighboring titanium tube plate
Between 2；Chamber 3 is made of two pieces of titanium plates 31；4 expanded joint of titanium heat exchanger tube is between adjacent two blocks of titanium tube plates 2, end and adjacent two
Block titanium tube plate 2 welds together.
Its middle chamber 3 can be the smoke box of solvent type hydroecium, the steam chest of steam type or flue gas type.
Gas shielded welding is carried out between the end of titanium heat exchanger tube 4 and adjacent two blocks of titanium tube plates 2, reaches sealing effect.Titanium
Solder joint 5 is equipped between the end of heat exchanger tube 4 and the side of adjacent two blocks of titanium tube plates 2, solder joint 5 is set to the corner of 2 side of titanium tube plate
Place.Solder joint 5 also is provided between titanium shell 1 and the side of titanium tube plate 2, the present embodiment is first by the contact of titanium shell 1 and titanium tube plate 2
It welds between face, then is further reinforced by solder joint 5.It is welded between the titanium plate 41 and titanium shell 1 of chamber 4.Entire heat exchanger is equal
Using titanium material, identical material is easier to weld, and welding is more secured, and air-tightness is more preferable.
The present embodiment on the one hand can ensure inside heat exchanger with solvent or the highly corrosion resistant of steam or smoke contacts with
And the highly corrosion resistant that absorption cold-warm water/heat pump unit is contacted with extraneous medium, the service life to improve complete machine are changed
The thermal efficiency；On the other hand, good airproof performance is not likely to produce leakage between titanium heat exchanger tube and titanium tube plate.
Embodiment 2
Difference lies in be bolted between the titanium plate and titanium shell of chamber with embodiment 1.
The other the same as in Example 1.
Embodiment 3
Difference lies in be equipped with solder joint, solder joint with embodiment 1 between the end of titanium heat exchanger tube and the side of adjacent two blocks of titanium tube plates
For linear structure, the other end is extended to from one end of titanium tube plate side, to improve the contact surface of welding, further increases sealing
Property.
The other the same as in Example 1.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technology
Within, then the present invention also includes these modifications and variations.
Claims (8)
1. a kind of lithium bromide cold and hot water/heat pump unit using full Ti-heat exchanger, which is characterized in that including multiple heat exchangers, institute
It includes titanium shell to state heat exchanger, and the both ends of titanium shell are equipped with titanium tube plate, and the side of titanium tube plate is equipped with chamber, titanium is equipped in titanium shell
Heat exchanger tube, titanium heat exchanger tube are set between two neighboring titanium tube plate；The chamber is made of titanium plate；The titanium heat exchanger tube expanded joint is in phase
Between adjacent two blocks of titanium tube plates, end welds together with adjacent two blocks of titanium tube plates.
2. using lithium bromide cold and hot water/heat pump unit of full Ti-heat exchanger according to claim 1, which is characterized in that described
Solder joint is equipped between the end of titanium heat exchanger tube and the side of adjacent two blocks of titanium tube plates.
3. using lithium bromide cold and hot water/heat pump unit of full Ti-heat exchanger according to claim 2, which is characterized in that described
Solder joint is set to the edge of titanium tube plate side；Or linear solder joint is equipped on whole side of titanium tube plate side.
4. using lithium bromide cold and hot water/heat pump unit of full Ti-heat exchanger according to claim 1, which is characterized in that described
Solder joint is equipped between titanium shell and the side of titanium tube plate.
5. according to lithium bromide cold and hot water/heat pump unit of the full Ti-heat exchanger of claim 1 ~ 4 any one of them, feature exists
In the chamber is hydroecium, steam chest or smoke box.
6. according to any one of the claim 1 ~ 4 lithium bromide cold and hot water/heat pump unit using full Ti-heat exchanger, feature exists
In welding or fastener connection between the titanium plate and titanium shell of the chamber.
7. according to any one of the claim 1 ~ 4 lithium bromide cold and hot water/heat pump unit using full Ti-heat exchanger, feature exists
In the multiple heat exchanger includes absorber, condenser, evaporator and generator.
8. using lithium bromide cold and hot water/heat pump unit of full Ti-heat exchanger according to claim 7, which is characterized in that described
Multiple heat exchangers further include additional water heater.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710114255.4A CN108507221A (en) | 2017-02-28 | 2017-02-28 | A kind of lithium bromide cold and hot water/heat pump unit using full Ti-heat exchanger |
| JP2019530004A JP6785969B2 (en) | 2016-12-12 | 2017-12-04 | Lithium bromide cold / hot water / heat pump unit |
| PCT/CN2017/114416 WO2018107989A1 (en) | 2016-12-12 | 2017-12-04 | Lithium bromide chiller-heater / heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710114255.4A CN108507221A (en) | 2017-02-28 | 2017-02-28 | A kind of lithium bromide cold and hot water/heat pump unit using full Ti-heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108507221A true CN108507221A (en) | 2018-09-07 |
Family
ID=63374334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710114255.4A Pending CN108507221A (en) | 2016-12-12 | 2017-02-28 | A kind of lithium bromide cold and hot water/heat pump unit using full Ti-heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108507221A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595103A (en) * | 2019-10-30 | 2019-12-20 | 远大空调有限公司 | High-temperature generator tube plate structure for lithium bromide cold-warm water unit |
| CN111811160A (en) * | 2020-07-01 | 2020-10-23 | 同方节能装备有限公司 | Anticorrosion structure of lithium bromide unit water system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2094435A (en) * | 1981-03-10 | 1982-09-15 | Nat Nuclear Corp Ltd | Repairing tubes |
| CN1148156A (en) * | 1995-10-16 | 1997-04-23 | 沈晓东 | Multi-function, direct combustion type set for making cold water and warm water with two pump by utilizing lithium bromide |
| CN101954566A (en) * | 2010-05-19 | 2011-01-26 | 张家港市恒强冷却设备有限公司 | Process for fixedly connecting titanium cooling tube in cooler and radiating fins and titanium tube plate |
| CN103252400A (en) * | 2012-02-17 | 2013-08-21 | 珠海格力电器股份有限公司 | Method for sealing of pipe plate and pipe through expanding and connecting |
| CN105234532A (en) * | 2015-10-23 | 2016-01-13 | 无锡明燕装备有限公司 | Titanium heat exchanger welding process and tools thereof |
| CN106440480A (en) * | 2016-12-12 | 2017-02-22 | 远大空调有限公司 | High-temperature generator for lithium bromide cold and warm water unit and pipe expanding method |
| CN206556304U (en) * | 2017-02-28 | 2017-10-13 | 远大空调有限公司 | A kind of lithium bromide cold and hot water/source pump using full Ti-heat exchanger |
-
2017
- 2017-02-28 CN CN201710114255.4A patent/CN108507221A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2094435A (en) * | 1981-03-10 | 1982-09-15 | Nat Nuclear Corp Ltd | Repairing tubes |
| CN1148156A (en) * | 1995-10-16 | 1997-04-23 | 沈晓东 | Multi-function, direct combustion type set for making cold water and warm water with two pump by utilizing lithium bromide |
| CN101954566A (en) * | 2010-05-19 | 2011-01-26 | 张家港市恒强冷却设备有限公司 | Process for fixedly connecting titanium cooling tube in cooler and radiating fins and titanium tube plate |
| CN103252400A (en) * | 2012-02-17 | 2013-08-21 | 珠海格力电器股份有限公司 | Method for sealing of pipe plate and pipe through expanding and connecting |
| CN105234532A (en) * | 2015-10-23 | 2016-01-13 | 无锡明燕装备有限公司 | Titanium heat exchanger welding process and tools thereof |
| CN106440480A (en) * | 2016-12-12 | 2017-02-22 | 远大空调有限公司 | High-temperature generator for lithium bromide cold and warm water unit and pipe expanding method |
| CN206556304U (en) * | 2017-02-28 | 2017-10-13 | 远大空调有限公司 | A kind of lithium bromide cold and hot water/source pump using full Ti-heat exchanger |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595103A (en) * | 2019-10-30 | 2019-12-20 | 远大空调有限公司 | High-temperature generator tube plate structure for lithium bromide cold-warm water unit |
| CN110595103B (en) * | 2019-10-30 | 2021-08-31 | 远大空调有限公司 | High-temperature generator tube plate structure for lithium bromide cold-warm water unit |
| CN111811160A (en) * | 2020-07-01 | 2020-10-23 | 同方节能装备有限公司 | Anticorrosion structure of lithium bromide unit water system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180907 |