CN206563446U - A kind of lithium bromide cold and hot water machine group high-temperature generator - Google Patents
A kind of lithium bromide cold and hot water machine group high-temperature generator Download PDFInfo
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- CN206563446U CN206563446U CN201621359562.6U CN201621359562U CN206563446U CN 206563446 U CN206563446 U CN 206563446U CN 201621359562 U CN201621359562 U CN 201621359562U CN 206563446 U CN206563446 U CN 206563446U
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- heat exchanger
- exchanger tube
- tube
- titanium
- hot water
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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
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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
- 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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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
In a kind of lithium bromide cold and hot water machine group high-temperature generator, including tube sheet and heat exchanger tube, the hole of the heat exchanger tube insertion tube sheet；The heat exchanger tube is in titanium heat exchanger tube, the hole of the tube sheet and/or the pipe end outside of titanium heat exchanger tube is coated with silicone oil.On the one hand the utility model can reduce material usage more than 70% using titanium heat exchanger tube than copper heat exchanger tube；On the other hand, the degree-of-difficulty factor of tube expansion can be reduced, sealing is greatly improved.
Description
Technical field
The utility model is related to technical field of heat exchange, particularly a kind of lithium bromide cold and hot water machine group high-temperature generator.
Background technology
The lithium bromide cold and hot water machine group of cellular-type high-temperature generator heat supply, separates with main body when heating and high-temperature generator
The characteristics of, because high-temperature generator is without mechanical moving element, when main body is inoperative, abrasion can be reduced.It is big by more than 20 years
Measure the checking of user's actual motion：Fault rate decline 70%, radiation loss reduce 60%, it is to avoid fouling when evaporator is heated and influence system
It is cold.One times of life longer.
Heat exchanger tube conventional method in high-temperature generator uses copper heat exchanger tube, although thermal conductivity factor is high, but lacks with following
Point：1）Copper hardness is low, not sherardizing steel and abrasion；2）Copper easily produces oxide layer, and easily fouling, and long-term use causes
Heat-transfer capability declines；3）The corrosion of copper not resistant to ammonia, sulfide and acidic materials.
It is improved afterwards, copper heat exchanger tube is replaced using stainless steel heat exchange tube, although hardness and corrosion resistance is improved, but are had
Following shortcoming：1）The chloride ion corrosion largely existed during stainless steel is not water-fast, so as to cause the problems such as spot corrosion, stress corrosion；2）
Stainless steel coefficient of thermal expansion is higher than as the 50% of high-temperature generator carbon steel sheel, causes carbon steel sheel and heat exchanger tube in work
When expansion differ, produce larger stress, and then cause to damage；3）Stainless steel can produce underdeposit corrosion in the case of incrusted
（A kind of oxygen differential concentration corrosion）.
In order to solve the above problems, stainless steel heat exchange tube is replaced using titanium heat exchanger tube in the prior art, achieved good
Effect, still, because titanium is a kind of high material of coefficient of elasticity, its yield strength with fracture strength closely, if tube expansion
Strength is not enough, and material can produce resilience, if tube expansion strength is excessive, may ftracture, so as to it is difficult to hold the tube expansion of titanium heat exchanger tube
Dynamics.
Utility model content
The purpose of this utility model is to overcome the above-mentioned not enough of prior art and provide a kind of good airproof performance, saves material,
It is corrosion-resistant, the small lithium bromide cold and hot water machine group high-temperature generator of tube expansion degree-of-difficulty factor.
The technical solution of the utility model is：A kind of lithium bromide cold and hot water machine group high-temperature generator, including tube sheet and change
In heat pipe, the hole of the heat exchanger tube insertion tube sheet；The heat exchanger tube is in titanium heat exchanger tube, the hole of the tube sheet and/or titanium heat exchange
Silicone oil is coated with the outside of the pipe end of pipe.
The utility model between the hole of titanium exchanger tubes and tubesheets by applying silicone oil, even if tube expansion strength is not enough, titanium is changed
Heat pipe is produced will not also produce gap between resilience, the hole of titanium exchanger tubes and tubesheets.In addition, silicone oil can high temperature resistant, long-term
Work it is lower will not volatilization loss, ensure that sealing, raising service life.
Further, the silicone oil is dimethicone.
Further, the heat exchanger tube inserts the expanded joint part of tube expander.
Further, the applied thickness of the silicone oil is not more than 0.1mm.So, silicone oil is both saved, cost, and energy is reduced
Sealing is improved, if applied thickness is excessive, tube expansion dynamics can be caused to be affectedly bashful improper, easily be influenceed, for example can by silicone oil
Cause tube expansion dynamics not enough, but now silicone oil thickness is big, still ensure that sealing, but once permanent worker in high temperature environments
Make, silicone oil can be volatilized, and because the tube expansion dynamics of early stage is not enough, sealing is poor between causing titanium exchanger tubes and tubesheets.
Further, the material of the titanium heat exchanger tube is pure titanium or titanium alloy.
The beneficial effects of the utility model：
（1）Pass through and select titanium heat exchanger tube, it is not necessary to reserved corrosion allowance, thickness can be reduced to the 1/2 of copper pipe, and titanium
Density is only 1/2 of copper or so, therefore, and material usage more than 70% can be reduced than copper heat exchanger tube using titanium heat exchanger tube；
（2）By being coated with silicone oil in the hole of tube sheet and/or on the outside of the pipe end of titanium heat exchanger tube, even if titanium heat exchanger tube itself
Coefficient of elasticity it is high, will not also reduce sealing, and then reduce the degree-of-difficulty factor of tube expansion, greatly improve sealing.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 1；
Fig. 2 is the structural representation that the utility model embodiment 1 applies dimethicone.
Embodiment
The utility model 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 machine group high-temperature generator, including tube sheet 2 and heat exchanger tube, are changed
In the hole 21 of heat pipe insertion tube sheet 2；Heat exchanger tube is to be coated with dimethicone 3 on the outside of titanium heat exchanger tube 1, the pipe end of titanium heat exchanger tube 1,
The applied thickness of dimethicone 3 is 0.05mm.The material of titanium heat exchanger tube 1 is pure titanium.
The present embodiment has advantages below using titanium heat exchanger tube 1：（1）Titanium does not have any corrosion under use environment, prolonged
It is durable；（2）The coefficient of thermal expansion of titanium as the carbon steel of high-temperature generator housing with differing less than 10%, and housing and heat exchanger tube are in work
Expanded unanimously when making, there is no stress damage hidden danger；（3）Titanium intensity is close to stainless steel and its surface oxide layer is extremely firm, uses
Under the conditions of there is no erosion corrosion and abrasion；（4）The oxide layer on titanium surface will not increase thickness, be not easy to fouling, be used for a long time and pass
Heat energy power is difficult to decline；（5）It is lightweight, improve the lightweight of heater.
Due to above reason, titanium heat exchanger tube 1 need not reserve corrosion allowance, and thickness can be reduced to the 1/2 of copper pipe, and titanium
Density be only 1/2 of copper or so, therefore, material usage more than 70% can be reduced than copper heat exchanger tube using titanium heat exchanger tube 1.
The expansion tube method of the present embodiment specifically includes following steps：
Step 1：Before tube expansion is carried out to titanium heat exchanger tube 1, dimethicone 3 is first applied on the outside of the pipe end of titanium heat exchanger tube 1,
It is used as sealant；
Step 2：Titanium heat exchanger tube 1 is inserted in the hole 21 of tube sheet 2, the expanded joint portion of tube expander 4 is inserted in the end of titanium heat exchanger tube 1
Point, tube expansion is carried out to titanium heat exchanger tube 1 by tube expander 4 so that the titanium heat exchanger tube 1 at hole 21 is fastened after dilating with tube sheet 2,
Sticked to by dimethicone 3 between titanium heat exchanger tube 1 and the hole 21 of tube sheet 2, realize auxiliary seal.
Why the present embodiment selects dimethicone 3, is because dimethicone has advantages below：（1）Viscosity is high,
Stick in the gap between titanium heat exchanger tube and tubesheet holes, play auxiliary seal；（2）Dimethicone is a kind of inert substance,
Do not corrode metal and do not produce chemical reaction with lithium-bromide solution yet；（3）Dimethicone is nontoxic, harmless to operator；（4）Diformazan
The boiling point of base silicone oil, for a long time will not volatilization loss, long working life in condition of work more than 300 DEG C.
It is very thin one layer due to applying by selecting the dimethicone 3 that applied thickness is 0.05mm, tube expansion can either be caused
Dynamics is easier to be affectedly bashful, and sealing can be improved again.
Embodiment 2
Difference with embodiment 1 is that dimethicone is coated in the hole of tube sheet, and applied thickness is 0.1mm.
The other the same as in Example 1.
Embodiment 3
Difference with embodiment 1 is that dimethicone was both coated in the hole of tube sheet, is also coated in the pipe of titanium heat exchanger tube
End outside, the applied thickness in tubesheet holes is 0.02mm, and the applied thickness on the outside of the pipe end of titanium heat exchanger tube is 0.08mm.
The other the same as in Example 1.
Claims (5)
1. a kind of lithium bromide cold and hot water machine group high-temperature generator, including tube sheet and heat exchanger tube, the heat exchanger tube insertion tube sheet
In hole；Characterized in that, the heat exchanger tube is titanium heat exchanger tube, applied in the hole of the tube sheet and/or on the outside of the pipe end of titanium heat exchanger tube
It is covered with silicone oil.
2. lithium bromide cold and hot water machine group high-temperature generator according to claim 1, it is characterised in that the silicone oil is diformazan
Base silicone oil.
3. lithium bromide cold and hot water machine group high-temperature generator according to claim 1 or claim 2, it is characterised in that the heat exchanger tube
Insert the expanded joint part of tube expander.
4. lithium bromide cold and hot water machine group high-temperature generator according to claim 1 or claim 2, it is characterised in that the silicone oil
Applied thickness is not more than 0.1mm.
5. lithium bromide cold and hot water machine group high-temperature generator according to claim 1 or claim 2, it is characterised in that the titanium heat exchange
The material of pipe is pure titanium or titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621359562.6U CN206563446U (en) | 2016-12-12 | 2016-12-12 | A kind of lithium bromide cold and hot water machine group high-temperature generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621359562.6U CN206563446U (en) | 2016-12-12 | 2016-12-12 | A kind of lithium bromide cold and hot water machine group high-temperature generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206563446U true CN206563446U (en) | 2017-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621359562.6U Active CN206563446U (en) | 2016-12-12 | 2016-12-12 | A kind of lithium bromide cold and hot water machine group high-temperature generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206563446U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766343A (en) * | 2016-12-12 | 2017-05-31 | 远大空调有限公司 | A kind of lithium bromide cold and hot water machine group and expansion tube method |
| WO2018107989A1 (en) * | 2016-12-12 | 2018-06-21 | 远大空调有限公司 | Lithium bromide chiller-heater / heat pump unit |
-
2016
- 2016-12-12 CN CN201621359562.6U patent/CN206563446U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766343A (en) * | 2016-12-12 | 2017-05-31 | 远大空调有限公司 | A kind of lithium bromide cold and hot water machine group and expansion tube method |
| WO2018107989A1 (en) * | 2016-12-12 | 2018-06-21 | 远大空调有限公司 | Lithium bromide chiller-heater / heat pump unit |
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