CN211696020U - Absorption heat pump heat exchanger - Google Patents
Absorption heat pump heat exchanger Download PDFInfo
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- CN211696020U CN211696020U CN202020170765.0U CN202020170765U CN211696020U CN 211696020 U CN211696020 U CN 211696020U CN 202020170765 U CN202020170765 U CN 202020170765U CN 211696020 U CN211696020 U CN 211696020U
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Abstract
The utility model discloses an absorption heat pump heat exchanger, which comprises a heat exchange box, wherein the left and right side plates of the heat exchange box are stainless steel tube plates, the outer sides of the two tube plates are water distribution boxes, the water distribution box is provided with a water inlet and a water outlet, a liquid distribution box is arranged above the heat exchange box, a liquid spraying plate densely distributed with dripping holes is arranged between the liquid distribution box and the heat exchange box, a liquid outlet is arranged below the heat exchange box, and a plurality of heat exchange copper tubes connected with the tube plates at the two sides are arranged inside the heat exchange box; the tube plate and the heat exchange copper tube are welded through a sleeve, one side of the upper part of the liquid distribution box is provided with a heightening box, the side surface of the liquid distribution box is provided with a liquid inlet box, the side surface of the heat exchange box is provided with a liquid level communicating tube, and a liquid level sensor is arranged in the liquid level communicating tube. The heat exchanger has the characteristics of compact and reasonable structure, easiness in processing and manufacturing, low failure rate and high heat exchange efficiency.
Description
Technical Field
The utility model belongs to the technical field of the absorption heat pump, especially, relate to an absorption heat pump heat exchanger.
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 all heat exchange devices of working medium solution and water, the heat exchange devices are collectively called as a heat exchanger of the absorption heat pump, the heat exchanger of the absorption heat pump comprises a heat exchange box, a heat absorption water pipe is arranged in the heat exchange box, and a liquid distribution box for uniformly dripping and spraying the working medium solution (such as lithium bromide solution and refrigerant water) into the box body is arranged at the upper part of the heat exchange box.
In the prior art, most of the heat exchangers adopt coil heat exchangers, and heat absorption water pipes of the coil heat exchangers in a box body adopt coils, so that the coil structure is complex, the processing and manufacturing difficulty is high, the structure is not compact, the failure rate is high, and the heat exchange efficiency is low.
Disclosure of Invention
An object of the utility model is to solve the problem that exists among the prior art, provide an absorption heat pump heat exchanger, it has compact structure reasonable, easy processing preparation, and the fault rate is low, characteristics that heat exchange efficiency is high.
The utility model adopts the technical proposal that: an absorption heat pump heat exchanger comprises a heat exchange box, wherein the left side plate and the right side plate of the heat exchange box are tube plates made of stainless steel, the outer sides of the two tube plates are water distribution boxes, water inlet tubes and water outlet tubes are arranged on the water distribution boxes, a liquid distribution box is arranged above the heat exchange box, liquid spraying plates densely distributed with dripping holes are arranged between the liquid distribution box and the heat exchange box, liquid outlet tubes are arranged below the heat exchange box, and a plurality of heat exchange copper tubes connected with the tube plates at the two sides are arranged in the heat exchange box; the method is characterized in that: 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, two ends of a 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; a heightening box is arranged on one side of the upper part of the liquid distribution box; a liquid inlet box is arranged on the side surface of the liquid distribution box, a liquid inlet pipe orifice is arranged on the side surface of the middle lower part of the liquid inlet box, and a solution through hole communicated with the liquid distribution box is arranged on the side surface of the middle upper part of the liquid inlet box; the sectional area of the solution port is larger than that of the liquid inlet pipe orifice; and a liquid level communicating pipe is arranged on the side surface of the heat exchange box, and a liquid level sensor is arranged in the liquid level communicating pipe.
Furthermore, a plurality of partition plates which connect the heat exchange copper pipes in series into a reciprocating water path are arranged in the water distribution box.
Further, the length of the sleeve is 40-50 mm, the inner diameter of the through hole is 0.5-1.0 mm larger than the outer diameter of the sleeve, and the inner diameter of the sleeve is 0.5-1.0 mm larger than the outer diameter of the heat exchange copper pipe.
Further, the height of the liquid distribution box is 2-5 cm, and the height of the heightening box is 10-40 cm.
Further, the solution through opening is rectangle, fillet rectangle or ellipse that horizontal width is greater than vertical height, and the sectional area of solution through opening is 2 ~ 8 times of feed liquor mouth of pipe sectional area.
Furthermore, the liquid level communicating pipe comprises a vertical pipe, the lower end of the vertical pipe is communicated with the bottom of the inner cavity of the heat exchange box through a lower horizontal pipe, and the upper end of the vertical pipe is communicated with the middle upper part of the inner cavity of the heat exchange box through an upper horizontal pipe.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the heat exchange copper pipe of the utility model is welded with the pipe plate through the sleeve, thereby solving the problem of large welding difficulty between the heat exchange copper pipe and the pipe plate; the sleeve and the tube plate are made of stainless steel materials, and the sleeve and the tube plate are easy to weld; 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.
(2) The utility model discloses be equipped with in one side on cloth liquid case upper portion and increase the case, cloth liquid case highly can design very low, the main tank body inner chamber capacity is very little, the working medium solution that gets into in the cloth liquid groove can be full of the main tank body very fast and get into and increase the box, because it is very little to increase the horizontal cross-section of box inner chamber, the liquid level that gets into and increases the working medium solution in the box rises very fast, even when working medium solution flow is low, the liquid level in the cloth liquid groove is also very high, can guarantee the speed and the homogeneity that drip of working medium solution drenches.
(3) The generator, the condenser, the evaporator and the absorber of the absorption heat pump are generally arranged longitudinally, the height of the liquid distribution box is designed to be very low, and the heightening box body can be positioned on the outer side of the main body structure, so that the main body height of the absorption heat pump is reduced.
(4) The utility model is provided with the liquid inlet box on the side of the liquid distribution box, the medium solution enters the liquid distribution groove after being buffered in the liquid inlet box, and the medium solution can enter the liquid distribution groove stably at low speed due to the sectional area of the solution through opening being larger than the sectional area of the liquid inlet pipe orifice, the dripping and sprinkling are uniform, and the heat exchange effect is good; the particle impurities contained in the medium solution can be precipitated in the liquid inlet box, so that the particle impurities are prevented from blocking the dripping holes.
(5) The utility model is provided with a liquid level communicating pipe on the side surface of the heat exchange box, and a liquid level sensor is arranged in the liquid level communicating pipe; the liquid level sensor transmits the liquid level height information to the controller of the absorption heat pump, and the controller can send the liquid level information and control the solution pump to work, so that a series of defects of idling of the solution pump and the like are avoided.
Drawings
Fig. 1 is a schematic view of a three-dimensional structure of an absorption heat pump heat exchanger of the present invention;
fig. 2 is a schematic view of a sectional structure of the absorption heat pump heat exchanger of the present invention;
fig. 3 is another schematic sectional view of the absorption heat pump heat exchanger of the present invention;
FIG. 4 is a schematic view showing a three-dimensional structure of the liquid distribution box of the present invention;
FIG. 5 is a schematic view of the connection structure between the heat exchange copper tube and the tube plate of the present invention;
fig. 6 is a schematic view of the liquid inlet box of the present invention.
In the figure: 1-heat exchange box, 2-tube plate, 3-water diversion box, 4-water inlet pipe, 5-water outlet pipe, 6-liquid distribution box, 7-liquid pouring plate, 8-liquid outlet pipe, 9-heat exchange copper tube, 10-through hole, 11-sleeve, 12-inner solder ring, 13-outer solder ring, 14-heightening box, 15-liquid inlet box, 16-liquid inlet pipe, 17-solution through hole, 18-liquid level sensor, 19-clapboard, 20-vertical pipe, 21-lower horizontal pipe, 22-upper horizontal pipe and 23-dripping hole.
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 to 6, an absorption heat pump heat exchanger comprises a heat exchange box 1, wherein the left and right side plates of the heat exchange box 1 are stainless steel tube plates 2, the outer sides of the two tube plates 2 are provided with water distribution boxes 3, the water distribution boxes 3 are provided with water inlet pipe orifices 4 and water outlet pipe orifices 5, a liquid distribution box 6 is arranged above the heat exchange box 1, a liquid spraying plate 7 densely provided with dripping holes 23 is arranged between the liquid distribution box 6 and the heat exchange box 1, a liquid outlet pipe orifice 8 is arranged below the heat exchange box 1, and a plurality of heat exchange copper tubes 9 connected with the tube plates 2 at the two sides are arranged inside the heat exchange box 1; four partition plates 19 which are used for connecting heat exchange copper pipes in series into a reciprocating water path are arranged in the two water diversion boxes 2; the tube plate 2 is provided with a plurality of through holes 10, the through holes 10 are provided with stainless steel sleeves 11 extending outwards, the inner side ends of the sleeves 11 and the tube plate 2 are welded in an annular mode to form inner soldering tin rings 12, two ends of heat exchange copper tubes 9 are installed in the sleeves 11 and extend out of the sleeves 11, and the outer side ends of the sleeves 11 and the heat exchange copper tubes 9 are welded in an annular mode to form outer soldering tin rings 13; the length of the sleeve 11 is 40 mm; the inner diameter of the through hole 10 is 1 mm larger than the outer diameter of the sleeve 11; the inner diameter of the sleeve 11 is 1 mm larger than the outer diameter of the heat exchange copper pipe 9; a heightening box 14 is arranged on one side of the upper part of the liquid distribution box 6; a liquid inlet box 15 is arranged on the side surface of the liquid distribution box 6, a liquid inlet pipe orifice 16 is arranged on the side surface of the middle lower part of the liquid inlet box 15, and a solution through hole 17 communicated with the liquid distribution box 6 is arranged on the side surface of the middle upper part of the liquid inlet box 15; the sectional area of the solution port 17 is larger than that of the liquid inlet pipe orifice 16; the solution through opening 17 is a rounded rectangle with the transverse width larger than the longitudinal height, and the sectional area of the solution through opening 17 is 6 times of that of the liquid inlet pipe; the height of the liquid distribution box is 3 cm, and the height of the heightening box is 20 cm. A liquid level communicating pipe is arranged on the side surface of the heat exchange box 1, and a liquid level sensor 18 is arranged in the liquid level communicating pipe. The liquid level communicating pipe comprises a vertical pipe 20, the lower end of the vertical pipe 20 is communicated with the bottom of the inner cavity of the heat exchange box 1 through a lower transverse pipe 21, and the upper end of the vertical pipe 20 is communicated with the middle upper part of the inner cavity of the heat exchange box 1 through an upper transverse pipe 22.
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 (6)
1. An absorption heat pump heat exchanger comprises a heat exchange box, wherein the left side plate and the right side plate of the heat exchange box are tube plates made of stainless steel, the outer sides of the two tube plates are water distribution boxes, water inlet tubes and water outlet tubes are arranged on the water distribution boxes, a liquid distribution box is arranged above the heat exchange box, liquid spraying plates densely distributed with dripping holes are arranged between the liquid distribution box and the heat exchange box, liquid outlet tubes are arranged below the heat exchange box, and a plurality of heat exchange copper tubes connected with the tube plates at the two sides are arranged in the heat exchange box; the method is characterized in that: 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, two ends of a 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; a heightening box is arranged on one side of the upper part of the liquid distribution box; a liquid inlet box is arranged on the side surface of the liquid distribution box, a liquid inlet pipe orifice is arranged on the side surface of the middle lower part of the liquid inlet box, and a solution through hole communicated with the liquid distribution box is arranged on the side surface of the middle upper part of the liquid inlet box; the sectional area of the solution port is larger than that of the liquid inlet pipe orifice; and a liquid level communicating pipe is arranged on the side surface of the heat exchange box, and a liquid level sensor is arranged in the liquid level communicating pipe.
2. The absorption heat pump heat exchanger of claim 1, wherein: and a plurality of partition plates for connecting the heat exchange copper pipes in series into a reciprocating water path are arranged in the water distribution box.
3. The absorption heat pump heat exchanger of claim 2, wherein: the length of the sleeve is 40-50 mm, the inner diameter of the through hole is 0.5-1.0 mm larger than the outer diameter of the sleeve, and the inner diameter of the sleeve is 0.5-1.0 mm larger than the outer diameter of the heat exchange copper pipe.
4. An absorption heat pump heat exchanger according to claim 3, wherein: the height of the liquid distribution box is 2-5 cm, and the height of the heightening box is 10-40 cm.
5. The absorption heat pump heat exchanger of claim 4, wherein: the solution through opening is rectangle, fillet rectangle or ellipse that horizontal width is greater than vertical height, and the sectional area of solution through opening is 2 ~ 8 times of feed liquor mouth of pipe sectional area.
6. The absorption heat pump heat exchanger of claim 5, wherein: the liquid level communicating pipe comprises a vertical pipe, the lower end of the vertical pipe is communicated with the bottom of the inner cavity of the heat exchange box through a lower horizontal pipe, and the upper end of the vertical pipe is communicated with the middle upper part of the inner cavity of the heat exchange box through an upper horizontal pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020170765.0U CN211696020U (en) | 2020-02-14 | 2020-02-14 | Absorption heat pump heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020170765.0U CN211696020U (en) | 2020-02-14 | 2020-02-14 | Absorption heat pump heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211696020U true CN211696020U (en) | 2020-10-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020170765.0U Active CN211696020U (en) | 2020-02-14 | 2020-02-14 | Absorption heat pump heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211696020U (en) |
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2020
- 2020-02-14 CN CN202020170765.0U patent/CN211696020U/en active Active
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