CN211526762U - Copper pipe heat exchanger of absorption heat pump - Google Patents
Copper pipe heat exchanger of absorption heat pump Download PDFInfo
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- CN211526762U CN211526762U CN202020170764.6U CN202020170764U CN211526762U CN 211526762 U CN211526762 U CN 211526762U CN 202020170764 U CN202020170764 U CN 202020170764U CN 211526762 U CN211526762 U CN 211526762U
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Abstract
The utility model discloses a copper pipe heat exchanger of an absorption heat pump, which comprises a box body made of stainless steel, wherein the left and right side plates of the box body are tube plates made of stainless steel, the outer sides of the two tube plates are water dividing boxes made of stainless steel, the water dividing boxes are provided with a water inlet pipe orifice and a water outlet pipe orifice, the upper surface of the box body is a liquid distribution groove, a liquid spraying plate densely distributed with dripping holes is arranged between the liquid distribution groove and the box body, the liquid inlet pipe orifice is arranged on the liquid distribution groove, the liquid outlet pipe orifice is arranged below the box body, a plurality of heat exchange copper pipes connected with the tube plates at the two, the tube plate is provided with a plurality of through holes, the through holes are provided with stainless steel sleeves extending outwards, the inner side ends of the sleeves and the tube plate are welded in an annular mode to form inner soldering tin rings, the two ends of the heat exchange copper tube are installed in the sleeves and extend out of the sleeves, and the outer side ends of the sleeves and the heat exchange copper tube are welded in an annular mode to form outer soldering tin rings. The novel soldering tin leakage preventing device has the advantages of compact and reasonable structure, easiness in processing and manufacturing, and no problems of soldering tin falling and corrosion leakage.
Description
Technical Field
The utility model belongs to the technical field of the absorption heat pump, especially, relate to a copper pipe heat exchanger of absorption heat pump.
Background
Absorption heat exchangers, also known as absorption heat pumps, have begun to be used in urban district heating systems. Chinese patent CN206755647U discloses an absorption heat exchanger, which comprises a generator, a condenser, an evaporator and an absorber; the generator, the evaporator and the absorber are heat exchange devices of working medium solution and water, and are collectively called as heat exchangers of the absorption heat pump, the three heat exchangers comprise a box body, a heat absorption water pipe is arranged in the box body, and a liquid distribution tank for uniformly dripping the working medium solution (such as lithium bromide solution and refrigerant water) into the box body is arranged at the upper part of the box body.
In the prior art, the heat exchanger mainly comprises a coil heat exchanger and a tube heat exchanger, wherein the tube heat exchanger has the advantages of compact structure, large heat exchange area and good heat exchange effect and is widely adopted. Stainless steel has with low costs, corrosion-resistant advantage, and the copper pipe has the advantage that heat transfer coefficient is high, and the preferred technical scheme of shell and tube heat exchanger is that box and tube sheet all adopt stainless steel, and the heat absorption water pipe uses the copper pipe, but, the welding degree of difficulty is big between copper pipe and the tube sheet, appears soldering tin after the welding and drops and corrodes the leakage problem easily.
Disclosure of Invention
An object of the utility model is to solve the problem that exists among the prior art, provide a copper pipe heat exchanger of absorption heat pump, it has compact structure reasonable, and easy processing preparation does not have soldering tin to drop and corrodes the leakage problem.
The utility model adopts the technical proposal that: the utility model provides a copper pipe heat exchanger of absorption heat pump, it includes stainless steel's box, the box left and right sides board is stainless steel's tube sheet, the outside of two tube sheets is stainless steel's box of dividing, divide to be equipped with water inlet pipe and water outlet pipe on the box, the higher authority of box is the cloth cistern, it drips the liquid board that drenches of drenching the hole to be densely covered between cloth cistern and the box, be equipped with the feed liquor mouth of pipe on the cloth cistern, be equipped with the liquid outlet pipe below the box, the inside heat exchange copper pipe that is equipped with a plurality of connection both sides tube sheet of box, its characterized in: the tube plate is provided with a plurality of through holes, the through holes are provided with stainless steel sleeves extending outwards, the inner side ends of the sleeves and the tube plate are welded in an annular mode to form inner soldering tin rings, the two ends of the heat exchange copper tube are installed in the sleeves and extend out of the sleeves, and the outer side ends of the sleeves and the heat exchange copper tube are welded in an annular mode to form outer soldering tin rings.
Further, the length of the sleeve is 40-50 mm.
Furthermore, the inner diameter of the through hole is 0.5-1.0 mm larger than the outer diameter of the sleeve.
Furthermore, the inner diameter of the sleeve is 0.5-1.0 mm larger than the outer diameter of the heat exchange copper pipe.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses a heat transfer copper pipe passes through sleeve pipe and tube sheet welded connection, has solved the big problem of the welding degree of difficulty between heat transfer copper pipe and the tube sheet.
(2) The sleeve and the tube plate are made of stainless steel materials, and the sleeve and the tube plate are easy to weld.
(3) The heat exchange copper pipe is inserted and is carried out preliminary fixed and sealing connection in the cover pipe, and the sheathed tube outside is stretched out at the both ends of heat exchange copper pipe, and annular welding forms outer soldering tin ring between cover pipe outside end and the heat exchange copper pipe, and outer soldering tin ring can extend into the clearance between cover pipe and the heat exchange copper pipe in, and soldering tin adheres to the area increase, is favorable to avoiding soldering tin to drop and corrodes the leakage problem emergence.
Drawings
Fig. 1 is a schematic view of a copper pipe heat exchanger of an absorption heat pump of the present invention;
FIG. 2 is an enlarged view of the part A of FIG. 1;
in the figure: 1-box body, 2-tube plate, 3-water distribution box, 4-water inlet pipe orifice, 5-water outlet pipe orifice, 6-liquid distribution groove, 7-liquid spraying plate, 8-liquid inlet pipe orifice, 9-liquid outlet pipe orifice, 10-heat exchange copper tube, 11-through hole, 12-sleeve, 13-inner solder ring and 14-outer solder ring.
Detailed Description
The technical solution of the present invention is clearly and completely described below with reference to the accompanying drawings.
As shown in fig. 1 and 2, a copper tube heat exchanger of an absorption heat pump comprises a box body 1 made of stainless steel, wherein the left and right side plates of the box body 1 are tube plates 2 made of stainless steel, the outer sides of the two tube plates are water distribution boxes 3 made of stainless steel, the water distribution boxes 3 are provided with water inlet nozzles 4 and water outlet nozzles 5, the upper surface of the box body 1 is provided with a liquid distribution groove 6, a liquid spraying plate 7 densely distributed with dripping holes is arranged between the liquid distribution groove 6 and the box body 1, the liquid distribution groove 6 is provided with a liquid inlet nozzle 8, the lower surface of the box body 1 is provided with a liquid outlet nozzle 9, the box body 1 is internally provided with a plurality of heat exchange copper tubes 10 connected with the tube plates 2 at two sides, the tube plates 2 are respectively provided with a plurality of through holes 11, the through holes 11 are provided with stainless steel sleeves 12 extending outwards, the inner side ends of the sleeves 12 are welded with the tube plates 2 in an annular shape to form inner soldering rings, the outer end of the sleeve 12 is annularly welded with the heat exchange copper pipe 10 to form an outer soldering tin ring 14. The length of the sleeve 12 is 40 mm; the inner diameter of the through hole 11 is 1 mm larger than the outer diameter of the sleeve 12; the inner diameter of the sleeve 12 is 1 mm larger than the outer diameter of the heat exchange copper pipe 10.
The above description of the present invention is only for the purpose of illustration, and not for the purpose of limitation, the technical solutions of the present invention are not subject to the spirit and scope of the present invention.
Claims (4)
1. The utility model provides a copper pipe heat exchanger of absorption heat pump, it includes stainless steel's box, the box left and right sides board is stainless steel's tube sheet, the outside of two tube sheets is stainless steel's box of dividing, divide to be equipped with water inlet pipe and water outlet pipe on the box, the higher authority of box is the cloth cistern, it drips the liquid board that drenches of drenching the hole to be densely covered between cloth cistern and the box, be equipped with the feed liquor mouth of pipe on the cloth cistern, be equipped with the liquid outlet pipe below the box, the inside heat exchange copper pipe that is equipped with a plurality of connection both sides tube sheet of box, its characterized in: the tube plate is provided with a plurality of through holes, the through holes are provided with stainless steel sleeves extending outwards, the inner side ends of the sleeves and the tube plate are welded in an annular mode to form inner soldering tin rings, the two ends of the heat exchange copper tube are installed in the sleeves and extend out of the sleeves, and the outer side ends of the sleeves and the heat exchange copper tube are welded in an annular mode to form outer soldering tin rings.
2. A copper tube heat exchanger for an absorption heat pump according to claim 1, wherein: the length of the sleeve is 40-50 mm.
3. A copper tube heat exchanger for an absorption heat pump according to claim 2, wherein: the inner diameter of the through hole is 0.5-1.0 mm larger than the outer diameter of the sleeve.
4. A copper tube heat exchanger for an absorption heat pump according to claim 3, wherein: the inner diameter of the sleeve is 0.5-1.0 mm larger than the outer diameter of the heat exchange copper pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020170764.6U CN211526762U (en) | 2020-02-14 | 2020-02-14 | Copper pipe heat exchanger of absorption heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020170764.6U CN211526762U (en) | 2020-02-14 | 2020-02-14 | Copper pipe heat exchanger of absorption heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211526762U true CN211526762U (en) | 2020-09-18 |
Family
ID=72459901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020170764.6U Active CN211526762U (en) | 2020-02-14 | 2020-02-14 | Copper pipe heat exchanger of absorption heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211526762U (en) |
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2020
- 2020-02-14 CN CN202020170764.6U patent/CN211526762U/en active Active
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