CN217424054U - High-energy-efficiency double-pipe heat exchanger and heat pump device - Google Patents
High-energy-efficiency double-pipe heat exchanger and heat pump device Download PDFInfo
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- CN217424054U CN217424054U CN202220747342.XU CN202220747342U CN217424054U CN 217424054 U CN217424054 U CN 217424054U CN 202220747342 U CN202220747342 U CN 202220747342U CN 217424054 U CN217424054 U CN 217424054U
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Abstract
The utility model discloses a high energy efficiency double pipe heat exchanger and heat pump device, high energy efficiency double pipe heat exchanger includes: the sealed tank is internally divided into an inner refrigerant cavity and an outer heat exchange cavity; the lower parts of the refrigerant cavity and the heat exchange cavity are communicated through a plurality of through holes, and the through holes are arranged in a layered manner from bottom to top; the spiral plate is spirally wound outside the refrigerant cavity, and the outer edge of the spiral plate is fixed with the inner wall of the heat exchange cavity; the heat exchange coil is spirally wound outside the refrigerant cavity and is positioned in the inner ring of the spiral plate, one end of the heat exchange coil penetrates out of the upper part of the seal tank, and the other end of the heat exchange coil penetrates out of the lower part of the seal tank; one end of the first refrigerant pipe penetrates out of the sealing tank, and the other end of the first refrigerant pipe is positioned at the bottom of the refrigerant cavity; and one end of the second refrigerant pipe is positioned at the upper part of the heat exchange cavity, and the other end of the second refrigerant pipe extends out of the sealing tank. The utility model discloses a high-energy efficiency double-pipe heat exchanger and heat pump device can improve the infiltration height of refrigerant, are favorable to discharging the long-pending oil, promote heat exchange efficiency.
Description
Technical Field
The utility model belongs to the technical field of indirect heating equipment, concretely relates to high-energy efficiency double pipe heat exchanger and heat pump device.
Background
The high-efficiency double-pipe heat exchanger is a common heat exchange device and has higher heat exchange efficiency when being used as a condensed fluorine water heat exchanger. However, when the evaporator is used, due to the inherent characteristics of the structure, oil accumulation is often formed, the liquid level of the refrigerant is too low, the heat exchange efficiency is reduced, and the performance and the safety of the system are affected.
SUMMERY OF THE UTILITY MODEL
For solving the problem that the oil accumulation and the refrigerant infiltration surface are too low in the prior art, the utility model provides a high-energy-efficiency sleeve heat exchanger and heat pump device.
The utility model adopts the following technical scheme:
an energy efficient double pipe heat exchanger comprising:
the sealed tank is internally divided into an inner refrigerant cavity and an outer heat exchange cavity; the lower parts of the refrigerant cavity and the heat exchange cavity are communicated through a plurality of through holes, and the through holes are arranged in a layered manner from bottom to top;
the spiral plate is spirally wound outside the refrigerant cavity, and the outer edge of the spiral plate is fixed with the inner wall of the heat exchange cavity;
the heat exchange coil is spirally wound outside the refrigerant cavity and is positioned in the inner ring of the spiral plate, one end of the heat exchange coil penetrates out of the upper part of the seal tank, and the other end of the heat exchange coil penetrates out of the lower part of the seal tank;
one end of the first refrigerant pipe penetrates out of the seal tank, and the other end of the first refrigerant pipe is positioned at the bottom of the refrigerant cavity; and
and one end of the second refrigerant pipe is positioned at the upper part of the heat exchange cavity, and the other end of the second refrigerant pipe extends out of the sealing tank.
In some embodiments, the plurality of through holes are arranged at a height not greater than 1/3 of the height of the heat exchange cavity.
In some embodiments, the upper end of the spiral plate has a spacing from the top of the heat exchange chamber, the width of the spacing being greater than 1/10 of the height of the heat exchange chamber.
In some embodiments, the surface of the spiral plate is provided with protrusions.
In some embodiments, the second refrigerant pipe includes a main pipe and a plurality of branch pipes, one end of each branch pipe is located at the upper part of the heat exchange cavity, and the other end of each branch pipe is connected with one end of the main pipe outside the sealing tank.
In some embodiments, the sealing tank is cylindrical, and the refrigerant cavity and the heat exchange cavity are coaxially arranged.
In some embodiments, a hollow cylinder is arranged in the sealed tank, and the upper end and the lower end of the cylinder are fixedly connected with the top wall and the bottom wall of the sealed tank respectively; the through holes are formed in the lower portion of the cylinder body.
In some embodiments, the plurality of through holes are evenly arranged on the barrel.
In some embodiments, the bottom of the sealed can is fixed with a plurality of support feet.
A heat pump apparatus comprising an energy efficient double pipe heat exchanger as described above.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses an among the high-energy efficiency double-pipe heat exchanger, the through-hole that refrigerant chamber and heat transfer chamber are connected is arranged by lower to upper layering to certain height has been formed. When being used for the refrigeration, heat exchange coil is intake from the upper end and is gone out water from the lower extreme, and liquid refrigerant gets into in the refrigerant chamber from first refrigerant pipe to in discharging the heat transfer chamber from each through-hole, because arranging of through-hole has certain height, consequently, heat exchange coil at the height range who is provided with the through-hole can both carry out the heat transfer with liquid refrigerant, thereby has improved liquid refrigerant's infiltration height, has promoted heat exchange efficiency, promotion system performance and security. Because the water flow direction in the heat exchange coil is opposite to the flowing direction of the refrigerant, the heat exchange efficiency can be further improved.
2. The utility model discloses an among the high-energy efficiency double-pipe heat exchanger, the through-hole that refrigerant chamber and heat transfer chamber are connected is arranged by lower up layering to certain height has been formed. When being used for the refrigeration, get into the heat transfer chamber in through-hole through a plurality of co-altitude to and liquid refrigerant is through the production vortex effect of helical plate, liquid refrigerant and heat transfer tube dish carry out abundant heat transfer, and liquid refrigerant heat transfer, and the gasification is gaseous refrigerant, under the condition that the compressor absorbs gaseous refrigerant, can make the long-pending oil of taking away the heat exchanger bottom that gaseous refrigerant is better.
Drawings
The technology of the present invention will be further described in detail with reference to the accompanying drawings and detailed description:
fig. 1 is a schematic view of the overall structure of the energy-efficient double-pipe heat exchanger of the present invention;
fig. 2 is a front view of the energy efficient double pipe heat exchanger of the present invention;
FIG. 3 is a side view of the energy efficient double pipe heat exchanger of the present invention;
fig. 4 is a sectional view taken along a-a in fig. 3.
Reference numerals:
1-sealing the tank; 11-refrigerant cavity; 12-a heat exchange chamber; 13-a through hole; 14-a cylinder body; 15-a leg;
2-a spiral plate;
3-heat exchange coil pipe; 31-an upper port; 32-lower port;
4-a first refrigerant pipe;
5-a second refrigerant pipe; 51-main tube; 52-branch pipe.
Detailed Description
The conception, specific structure and resulting technical effects of the present invention will be made clear and fully described with reference to the accompanying drawings and examples, so as to fully understand the objects, aspects and effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The same reference numbers will be used throughout the drawings to refer to the same or like parts.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, the description of the upper, lower, left, right, etc. used in the present invention is only relative to the mutual positional relationship of the components of the present invention in the drawings.
Referring to fig. 1 to 4, an energy efficient double-pipe heat exchanger includes a sealed tank 1, a spiral plate 2, a heat exchange coil 3, a first refrigerant pipe 4, and a second refrigerant pipe 5.
Referring to fig. 4, the inside of the hermetic vessel 1 is divided into an inner refrigerant cavity 11 and an outer heat exchange cavity 12; the lower parts of the refrigerant cavity 11 and the heat exchange cavity 12 are communicated through a plurality of through holes 13, the through holes 13 are arranged in a layered mode from bottom to top, and refrigerant can circulate between the refrigerant cavity 11 and the heat exchange cavity 12 through the through holes 13. Because the through holes 13 are arranged in a layered manner from bottom to top to form a certain height, the refrigerant can be discharged from the refrigerant cavity 11 to the heat exchange cavity 12 within the height range provided with the through holes 13, and the infiltration effect on the heat exchange coil 3 can be formed in the process. Wherein, a plurality of support legs 15 are fixed at the bottom of the seal pot 1 and used for supporting the seal pot 1.
Referring to fig. 1, the leg 15 is L-shaped and may be fixed to a mounting base (not shown) by welding or the like, for example, to a metal base. In other embodiments, the supporting legs 15 are provided with screw holes (not shown in the figures), the supporting legs 15 are fixed on the mounting base plate through screws, further, the sealing can 1 can be further fixed on the mounting base plate after being connected with rubber foot pads (not shown in the figures) through the supporting legs 15, and the generated vibration can be absorbed through the rubber foot pads in the heat exchange process through the arrangement of the sealing can 1, so that the noise is reduced.
Referring to fig. 4, the spiral plate 2 is spirally wound outside the refrigerant cavity 11, and the outer edge of the spiral plate 2 is fixed to the inner wall of the heat exchange cavity 12. Spiral plate 2 has carried out certain degree of division with heat transfer chamber 12, and when the refrigerant flowed in heat transfer chamber 12, because spiral plate 2 formed the vortex effect to the refrigerant, spiral plate 2 removal can be followed to the refrigerant to prolonged the flow distance of refrigerant in heat transfer chamber 12, increased refrigerant and heat exchange coil 3's contact, heat transfer time, be favorable to promoting heat exchange efficiency.
Further, in order to further increase the turbulence effect, the lower surface and/or the upper surface of the spiral plate 2 may be provided with a plurality of ribs, protrusions, etc. (not shown in the figure) protruding from the surface of the spiral plate 2. The arrangement of the protruding portion increases the turbulence effect of the refrigerant, and further enhances the heat exchange efficiency of the refrigerant.
Referring to fig. 1 to 4, the heat exchange coil 3 is spirally wound outside the refrigerant cavity 11 and located in the inner ring of the spiral plate 2, one end of the heat exchange coil 3 penetrates through the upper portion of the seal tank 1, and the other end of the heat exchange coil penetrates through the lower portion of the seal tank 1. When the heat exchange coil 3 is used, water is introduced into the heat exchange coil, and the water exchanges heat with a refrigerant in the heat exchange cavity 12 according to specific use conditions, so that cold water or hot water is prepared. When cold water is prepared, water is supplied from the upper port 31 of the heat exchange coil 3 and discharged from the lower port 32. When hot water is prepared, water is supplied from the lower port 32 of the heat exchange coil 3 and discharged from the upper port 31.
Among other embodiments, heat exchange coil 3 can set up to a plurality of heat exchange coil 3 side by side, reaches to increase refrigerant and 3 area of contact of heat exchange coil through the quantity that increases heat exchange coil 3, further increase heat exchange efficiency.
Referring to fig. 1 to 4, one end of the first refrigerant pipe 4 penetrates through the hermetic vessel 1, and the other end is located at the bottom of the refrigerant cavity 11; one end of the second refrigerant pipe 5 is positioned at the upper part of the heat exchange cavity 12, and the other end of the second refrigerant pipe extends out of the seal tank 1. The first refrigerant pipe 4 and the second refrigerant pipe 5 are matched with each other to realize the input and output of the refrigerants.
When the high-energy-efficiency double-pipe heat exchanger is used for heating and cooling, liquid refrigerant is input from the first refrigerant pipe 4, enters the refrigerant cavity 11 and enters the heat exchange cavity 12 from the through hole 13, exchanges heat with water in the heat exchange pipe coil in the heat exchange cavity 12, the liquid refrigerant is gasified to absorb heat, cold water is prepared, gaseous refrigerant is discharged from the second refrigerant pipe 5, and the heat exchange coil 3 enters water from the upper port 31 and discharges water from the lower port 32. In the process, because the liquid refrigerant enters the heat exchange cavity 12 from the through holes 13 with different heights, the liquid refrigerant which just enters the heat exchange cavity 12 can infiltrate the heat exchange tube coil, so that the infiltration height of the heat exchange tube coil is improved, the heat exchange efficiency is improved, the gasification of the refrigerant is accelerated, and the gaseous refrigerant is discharged from the second refrigerant tube 5 above the heat exchange tube coil. Get into heat transfer chamber 12 in through-hole 13 through a plurality of co-altitude to and liquid refrigerant through the production vortex effect of spiral plate 2, liquid refrigerant and heat transfer tube dish carry out abundant heat transfer, and liquid refrigerant heat transfer to gasification is gaseous refrigerant, and under the condition of gaseous refrigerant was absorb to the compressor, can make gaseous refrigerant better take away the long-pending oil of heat exchanger bottom. Referring to fig. 4, further, the plurality of through holes 13 may be disposed on the same vertical line, and in other embodiments, may be disposed on different vertical lines.
Furthermore, because the water flow direction in the heat exchange coil 3 is opposite to the flowing direction of the refrigerant, the heat exchange efficiency can be further improved.
When this high-energy efficiency double-pipe heat exchanger is used for heating, gaseous state refrigerant gets into heat transfer chamber 12 from second refrigerant pipe 5, gets into refrigerant chamber 11 through-hole 13 after and discharges from first refrigerant pipe 4, and heat exchange coil 3 is followed lower port 32 and is intake and from the water of upper port 31, and water and the refrigerant flow direction reverse flow in this in-process heat exchange coil 3 improve heat exchange efficiency.
In an embodiment, the plurality of through holes 13 are disposed at the bottom of the hermetic vessel 1, the arrangement height of the plurality of through holes 13 is not greater than 1/3 of the height of the heat exchange cavity 12, and if the height of the heat exchange cavity 12 is H, the total height of the area of the through holes 13 is not greater than 1/3 of H, on one hand, the plurality of through holes 13 are disposed, so that a large flow rate is provided when the refrigerant flows out of or flows into the refrigerant cavity 11, on the other hand, a sufficient accommodating space for the refrigerant after gasification needs to be reserved, and a safety problem caused by an excessive pressure after the refrigerant is gasified due to an excessively small space is avoided.
In one embodiment, a space is provided between the upper end of the spiral plate 2 and the top of the heat exchange cavity 12, so that the gaseous refrigerant ascending along the spiral plate 2 can be discharged through the second refrigerant pipe 5 located at the top of the heat exchange cavity 12, and the width of the space is greater than 1/10 of the height of the heat exchange cavity 12, so as to avoid blocking the circulation of the refrigerant.
Preferably, the second refrigerant pipe 5 includes a main pipe 51 and a plurality of branch pipes 52, one end of each of the plurality of branch pipes 52 is located on the upper portion of the heat exchange cavity 12, and the other end of each of the plurality of branch pipes 52 is connected with one end of the main pipe 51 outside the seal pot 1, that is, the second refrigerant pipe 5 and the heat exchange cavity 12 are connected to form a plurality of ports, so that the cross section of the gaseous refrigerant is increased, the flow rate of the refrigerant during discharge can be reduced, the problem that the infiltration liquid level is too low or the liquid returns is caused by too fast air return flow rate of a large-P-number refrigerant system can be avoided, the system safety is ensured, and the heat exchange efficiency is improved. In one embodiment, there are two manifolds 52.
Specifically, the seal pot 1 is cylindrical, the refrigerant cavity 11 and the heat exchange cavity 12 are coaxially arranged, and the heat exchange coil 3 is sleeved outside the refrigerant cavity 11 and is also coaxial with the refrigerant cavity 11.
In one embodiment, a hollow cylinder 14 is arranged in the seal pot 1, and the upper end and the lower end of the cylinder 14 are respectively fixedly connected with the top wall and the bottom wall of the seal pot 1; the through holes 13 are formed in the lower portion of the cylinder 14. The cylinder 14 divides the interior of the seal tank 1 into a refrigerant chamber 11 and a heat exchange chamber 12, and the cylinder 14 also has a function of supporting the upper and lower ends of the seal tank 1. The through holes 13 are uniformly arranged on the cylinder 14, the distance between the through holes 13 in each layer is equal, and the distance between the upper layer and the lower layer in the two adjacent layers is also equal.
A heat pump apparatus comprising an energy efficient double pipe heat exchanger as described above.
Other contents of high-energy efficiency double-pipe heat exchanger and heat pump device refer to prior art, no longer describe herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.
Claims (10)
1. An energy efficient double pipe heat exchanger, comprising:
the sealed tank is internally divided into an inner refrigerant cavity and an outer heat exchange cavity; the lower parts of the refrigerant cavity and the heat exchange cavity are communicated through a plurality of through holes, and the through holes are arranged in a layered manner from bottom to top;
the spiral plate is spirally wound outside the refrigerant cavity, and the outer edge of the spiral plate is fixed with the inner wall of the heat exchange cavity;
the heat exchange coil is spirally wound outside the refrigerant cavity and positioned in the inner ring of the spiral plate, one end of the heat exchange coil penetrates out of the upper part of the seal tank, and the other end of the heat exchange coil penetrates out of the lower part of the seal tank;
one end of the first refrigerant pipe penetrates out of the seal tank, and the other end of the first refrigerant pipe is positioned at the bottom of the refrigerant cavity; and
and one end of the second refrigerant pipe is positioned at the upper part of the heat exchange cavity, and the other end of the second refrigerant pipe extends out of the sealing tank.
2. The energy efficient double-tube heat exchanger of claim 1, wherein the plurality of through holes are arranged at a height no greater than 1/3 of the height of the heat exchange chamber.
3. The energy efficient double-tube heat exchanger of claim 1, wherein the upper end of the spiral plate has a spacing from the top of the heat exchange chamber, the spacing having a width greater than 1/10 the height of the heat exchange chamber.
4. The energy efficient double-tube heat exchanger of claim 1, wherein the surface of the spiral plate is provided with a protrusion.
5. The energy-efficient double-pipe heat exchanger as claimed in claim 1, wherein the second refrigerant pipe comprises a main pipe and a plurality of branch pipes, one end of each branch pipe is located at the upper part of the heat exchange cavity, and the other end of each branch pipe is connected with one end of the main pipe outside the sealing tank.
6. The energy efficient double-pipe heat exchanger of claim 1, wherein the hermetic vessel is cylindrical, and the refrigerant chamber and the heat exchange chamber are coaxially disposed.
7. The high-energy-efficiency double-pipe heat exchanger according to claim 1, wherein a hollow cylinder is arranged in the sealed tank, and the upper end and the lower end of the cylinder are fixedly connected with the top wall and the bottom wall of the sealed tank respectively; the through holes are formed in the lower portion of the barrel.
8. The energy efficient double-pipe heat exchanger of claim 7, wherein the plurality of through-holes are evenly arranged on the barrel.
9. The energy efficient double-pipe heat exchanger of claim 1, wherein a plurality of legs are fixed to the bottom of the hermetic vessel.
10. A heat pump apparatus, characterized in that the heat pump apparatus comprises an energy efficient double pipe heat exchanger according to any one of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220747342.XU CN217424054U (en) | 2022-04-01 | 2022-04-01 | High-energy-efficiency double-pipe heat exchanger and heat pump device |
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| CN202220747342.XU CN217424054U (en) | 2022-04-01 | 2022-04-01 | High-energy-efficiency double-pipe heat exchanger and heat pump device |
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| CN217424054U true CN217424054U (en) | 2022-09-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117883810A (en) * | 2024-03-14 | 2024-04-16 | 潍坊三昌化工科技有限公司 | Mixed pentane precise separation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117883810A (en) * | 2024-03-14 | 2024-04-16 | 潍坊三昌化工科技有限公司 | Mixed pentane precise separation device |
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