CN206583133U - A kind of lithium bromide cold and hot water/source pump - Google Patents
A kind of lithium bromide cold and hot water/source pump Download PDFInfo
- Publication number
- CN206583133U CN206583133U CN201720186567.1U CN201720186567U CN206583133U CN 206583133 U CN206583133 U CN 206583133U CN 201720186567 U CN201720186567 U CN 201720186567U CN 206583133 U CN206583133 U CN 206583133U
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- tube
- flaggy
- heat exchanger
- tube sheet
- 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
A kind of lithium bromide cold and hot water/source pump, including heat exchanger, the heat exchanger include housing, and the two ends of housing are provided with tube sheet, and the side of tube sheet, which is provided with chamber, housing, is provided with heat exchanger tube, and heat exchanger tube is located between two neighboring tube sheet；The heat exchanger tube is titanium tube；The chamber and tube sheet are the composite plate structure being made up of the first flaggy and the second flaggy, and first flaggy is titanium plate layer, and the material of second flaggy is identical with the material of housing；Expanded joint between the heat exchanger tube elder generation and tube sheet, then its termination is fixedly connected with the titanium plate layer of tube sheet.The utility model is on the one hand compared with existing single mild steel or carbon steel construction, and under same intensity, weight is minimum, under identical weight, maximum intensity, and substantially increases corrosion resistance；On the other hand, the tube expansion of titanium tube, increase expanded joint intensity and raising sealing are conducive to.
Description
Technical field
The utility model is related to technical field of heat exchange, particularly a kind of lithium bromide cold and hot water/source pump.
Background technology
The shell of lithium bromide absorption cooling and warming water machine group or source pump generally using mild steel as housing, copper pipe or not
Rust steel pipe is used as heat exchanger tube.
Although high using copper heat exchanger tube thermal conductivity factor, have the disadvantages that：1）Copper hardness is low, not sherardizing steel and mill
Damage；2）Copper easily produces oxide layer, and easily fouling, and long-term use causes heat-transfer capability to decline；3）Copper not resistant to ammonia, sulfide
And the corrosion of 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 still
Have the disadvantages that：1）The chloride ion corrosion largely existed during stainless steel is not water-fast, so as to cause spot corrosion, stress corrosion etc. to be asked
Topic；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 to exist
Expansion differs during work, produces larger stress, and then causes to damage；3）Stainless steel can be produced under dirt in the case of incrusted
Corrosion（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, to ensure not leaking extremely difficult, titanium for a long time by tube expansion
It can not be welded with tube sheet.Even if in addition, the tube sheet of mild steel to be replaced to the tube sheet of carbon steel, its corrosion resistance also can not show a candle to
Titanium, tube sheet corrosion will influence bulk life time.
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 intensity height, and corrosion resistance is strong,
It is lightweight, the big lithium bromide cold and hot water/source pump of expanded joint intensity.
The technical solution of the utility model is：A kind of lithium bromide cold and hot water/source pump, including heat exchanger, the heat exchange
Device includes housing, and the two ends of housing are provided with tube sheet, and the side of tube sheet, which is provided with chamber, housing, is provided with heat exchanger tube, and heat exchanger tube is located at
Between two neighboring tube sheet；The heat exchanger tube is titanium tube；The chamber and tube sheet are to be made up of the first flaggy and the second flaggy
Composite plate structure, first flaggy is titanium plate layer, and the material of second flaggy is identical with the material of housing；The heat exchange
Expanded joint between Guan Xianyu tube sheets, then the titanium plate layer of its termination and tube sheet is welded.
Such scheme has advantages below：（1）Because the part that is contacted with acid solution is heat exchanger tube, hydroecium and tube sheet, wherein
There is higher requirement to the material of these three parts；By the way that chamber and tube sheet are designed to be combined with the second flaggy by titanium plate layer
Composite plate structure, and the material of the second flaggy and the material of housing are identical, enable to chamber and tube sheet resistance to adaptability to changes,
Corrosion resistance is more much higher than existing carbon steel, and titanium intensity is close to stainless steel；Not only than existing carbon after being combined with the second flaggy
Plain steel is lightweight, moreover it is possible to remain the intensity of normal carbon steel plate, or even strength ratio normal carbon steel plate is higher；（2）Due to titanium
It is a kind of high material of coefficient of elasticity, with fracture strength closely, if tube expansion strength is not enough, material can be produced its yield strength
Resilience, if tube expansion strength is excessive, may ftracture so that tube expansion will ensure not leaking extremely difficult for a long time；This programme is by inciting somebody to action
Tube sheet is arranged to composite construction, and the second flaggy is due to identical with the material of housing, and coefficient of elasticity is low, would not produce resilience, have
Beneficial to the tube expansion of titanium tube, increase expanded joint intensity and raising sealing.
Further, weld or connected by fastener between the second flaggy of the housing and tube sheet, for maintaining tube sheet
And the structural strength of chamber.
Further, the material of the housing is mild steel or low-alloy steel, and second flaggy is low carbon steel layer or low conjunction
Golden steel layer.
Further, the chamber is hydroecium or steam chest；Wherein steam chest is the chamber of steam type.
Further, the titanium plate layer in the chamber is made up of polylith titanium plate, and the second flaggy is identical with shell material by polylith
Plate body composition；The integrally welded lining as chamber between the polylith titanium plate, the polylith and shell material identical
The integrally welded shell mechanism for constituting chamber between plate body.Using titanium plate layer as lining, itself and the liquid or steam in chamber
Corrosion will not be produced during contact, service life is greatly improved；Using the second flaggy as shell mechanism, it can greatly improve overall strong
Degree.
Further, the titanium plate layer of the tube sheet is welded with the titanium plate layer of hydroecium.
Further, the thickness of second flaggy is more than the thickness of the first flaggy.
Further, the thickness of second flaggy is 2 ~ 5 times of the first flaggy thickness.
Second flaggy of composite plate structure is thicker, the structural strength for maintaining tube sheet and chamber, and with low cost
Characteristic.Because the material of the second flaggy and the material of housing are identical, other parts that can be with lithium bromide cold and hot water/source pump
Same type of material welded.In addition, the thicker tube expansion for being conducive to titanium tube of the second flaggy, increase expanded joint intensity and improving is sealed
Property.
The titanium plate layer of composite plate structure is relatively thin, for ensureing the highly corrosion resistant of contact extraneous medium, and is reached with titanium tube
Roughly the same service life.
Further, the end of the heat exchanger tube is provided with flange, is welded to connect between flange and the titanium plate layer of tube sheet.Flange
The contact area of heat exchanger tube and titanium plate layer can be increased, sealing is greatly improved.
Heat exchanger of the present utility model can be absorber, condenser, evaporator, cryogenerator（Dual effect type）, add
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.
The utility model heat exchanger tube is by the way of expansion joint welding, because expanded joint ensure that enough intensity, and
There is auxiliary seal effect, welding ensure that sealing, and certain intensity is provided again so that the titanium plate layer of titanium exchanger tubes and tubesheets
Between air-tightness more preferably, linking intensity it is higher.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 1；
Fig. 2 is the structural representation of each part of the utility model embodiment 1.
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/source pump, including heat exchanger, heat exchanger include housing 1,
The two ends of housing 1 are provided with tube sheet 2, and the side of tube sheet 2, which is provided with hydroecium 3, housing 1, is provided with heat exchanger tube 4, and heat exchanger tube 4 is located at adjacent
Between two tube sheets 2；Heat exchanger tube 4 is titanium tube；Hydroecium 3 and tube sheet 2 are the composite plate being made up of titanium plate layer 5 and low carbon steel layer 6
Structure, housing 1 uses low-carbon steel material；Expanded joint between the elder generation of heat exchanger tube 4 and tube sheet 2, then by the flange of its end and tube sheet 2
Welded between titanium plate layer 5, improve sealing.
The present embodiment has advantages below using titanium tube：（1）Titanium does not have any corrosion under use environment, durable in use；
（2）The coefficient of thermal expansion of titanium is close with the material of housing, housing operationally expanded with heat exchanger tube it is consistent, it is hidden without stress damage
Suffer from；（3）Titanium intensity is close to stainless steel, without erosion corrosion and abrasion；（4）The oxide layer on titanium surface will not increase thickness, also not
Easy fouling, is used for a long time heat-transfer capability and is difficult to decline；（5）It is lightweight, improve the lightweight of heat exchanger.
Due to titanium and mild steel thermal coefficient of expansion closely, hydroecium 3, the titanium plate layer 5 of tube sheet 2 and low carbon steel layer 6 are logical
Cross and obtain composite plate structure by the way of hot pressing processing under gas shield environment.
It is welded to connect between the low carbon steel layer 6 of housing 1 and tube sheet 2, because material is identical so that welding is more prone to.
Titanium plate layer 5 in hydroecium 3 is made up of polylith titanium plate 51, and low carbon steel layer 6 is made up of polylith low carbon steel plate 61.Polylith titanium
Individually welding, as the lining of hydroecium 3, reaches etch-proof effect between plate 51；Polylith low carbon steel plate 61 is individually formed by welding water
The shell mechanism of room 3, improves structural strength；And it is compound by HTHP between the titanium plate layer 5 and low carbon steel layer 6 in hydroecium 3
Form, realize and be seamlessly connected, to avoid acid solution from penetrating into the low carbon steel layer 6 of hydroecium 3.
The polylith titanium plate 51 of hydroecium 3 is specifically connected with each other by the way of gas shielded welding, and its end after titanium tube tube expansion
Head forms entirety with titanium plate layer 5 using gas shielded welding, to increase air-tightness, and avoids the contact of mild steel part is extraneous from being situated between
Matter.
The titanium plate layer 5 of tube sheet 2 is welded to connect with the titanium plate layer 5 of hydroecium 3, because material is identical so that welding is more prone to.
The thickness of low carbon steel layer 6 is 2.5 times of titanium plate 5 thickness of layer.
Low carbon steel layer 6 is thicker, is on the one hand able to maintain that the structural strength of tube sheet 2 and hydroecium 3, and special with low cost
Property；On the other hand, the low carbon steel layer 6 of tube sheet 2 is conducive to the tube expansion of titanium tube, increase expanded joint intensity and raising sealing.
Titanium plate layer 5 is relatively thin, and on the one hand the highly corrosion resistant for guarantee contact extraneous medium, reaches roughly the same with titanium tube
Service life；And its termination is easy to weld with titanium plate after titanium tube tube expansion, increases air-tightness；On the other hand, it is possible to increase light weight
Change level.
The composite plate structure of the present embodiment is compared with existing single mild steel or carbon steel construction, under same intensity,
Weight is minimum, under identical weight, maximum intensity, and substantially increases corrosion resistance.
Embodiment 2
Difference with embodiment 1 is that low carbon steel layer is replaced by low-alloy steel layer, and housing uses low-alloy steel material.
The thickness of low-alloy steel layer is 3 times of titanium plate thickness degree.
The other the same as in Example 1.
Embodiment 3
Difference with embodiment 1 is that hydroecium is replaced by steam chest.
The other the same as in Example 1
Embodiment 4
Difference with embodiment 1 is, is bolted between low carbon steel layer and housing.
The other the same as in Example 1.
Obviously, those skilled in the art can carry out various changes and modification without departing from this practicality to the utility model
New spirit and scope.So, if these modifications and variations of the present utility model belong to the utility model claim and
Within the scope of its equivalent technology, then the utility model also comprising these change and modification including.
Claims (9)
1. a kind of lithium bromide cold and hot water/source pump, it is characterised in that including heat exchanger, the heat exchanger includes housing, housing
Two ends be provided with tube sheet, the side of tube sheet, which is provided with chamber, housing, is provided with heat exchanger tube, heat exchanger tube located at two neighboring tube sheet it
Between；The heat exchanger tube is titanium tube；The chamber and tube sheet are the composite plate structure being made up of the first flaggy and the second flaggy, institute
It is titanium plate layer to state the first flaggy, and the material of second flaggy is identical with the material of housing；Between the heat exchanger tube elder generation and tube sheet
Expanded joint, then the titanium plate layer of its termination and tube sheet is welded.
2. lithium bromide cold and hot water/source pump according to claim 1, it is characterised in that the of the housing and tube sheet
Weld or connected by fastener between two flaggies.
3. lithium bromide cold and hot water/source pump according to claim 1, it is characterised in that the material of the housing is low
Carbon steel or low alloy steel, second flaggy is low carbon steel layer or low-alloy steel layer.
4. lithium bromide cold and hot water/source pump according to claim 1, it is characterised in that the chamber is hydroecium or vapour
Room.
5. lithium bromide cold and hot water/source pump according to any one of claim 1 ~ 4, it is characterised in that in the chamber
Titanium plate layer be made up of polylith titanium plate, the second flaggy is made up of polylith with shell material identical plate body；The polylith titanium plate it
Between the integrally welded lining as chamber, integrally welded composition chamber between polylith and shell material the identical plate body
Shell mechanism.
6. lithium bromide cold and hot water/source pump according to claim 5, it is characterised in that the titanium plate layer of the tube sheet with
The titanium plate layer welding of hydroecium.
7. lithium bromide cold and hot water/source pump according to claim 5, it is characterised in that the thickness of second flaggy
More than the thickness of the first flaggy.
8. lithium bromide cold and hot water/source pump according to claim 7, it is characterised in that the thickness of second flaggy
For 2 ~ 5 times of the first flaggy thickness.
9. lithium bromide cold and hot water/source pump according to claim 5, it is characterised in that the end of the heat exchanger tube
Provided with flange, it is welded to connect between the titanium plate layer of flange and tube sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720186567.1U CN206583133U (en) | 2017-02-28 | 2017-02-28 | A kind of lithium bromide cold and hot water/source pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720186567.1U CN206583133U (en) | 2017-02-28 | 2017-02-28 | A kind of lithium bromide cold and hot water/source pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206583133U true CN206583133U (en) | 2017-10-24 |
Family
ID=60091582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720186567.1U Active CN206583133U (en) | 2017-02-28 | 2017-02-28 | A kind of lithium bromide cold and hot water/source pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206583133U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018107989A1 (en) * | 2016-12-12 | 2018-06-21 | 远大空调有限公司 | Lithium bromide chiller-heater / heat pump unit |
| CN108507222A (en) * | 2017-02-28 | 2018-09-07 | 远大空调有限公司 | A kind of lithium bromide cold and hot water/heat pump unit |
-
2017
- 2017-02-28 CN CN201720186567.1U patent/CN206583133U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018107989A1 (en) * | 2016-12-12 | 2018-06-21 | 远大空调有限公司 | Lithium bromide chiller-heater / heat pump unit |
| CN108507222A (en) * | 2017-02-28 | 2018-09-07 | 远大空调有限公司 | A kind of lithium bromide cold and hot water/heat pump unit |
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| GR01 | Patent grant |