CN213021102U - Double-pipe heat exchanger structure - Google Patents
Double-pipe heat exchanger structure Download PDFInfo
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- CN213021102U CN213021102U CN202020700103.XU CN202020700103U CN213021102U CN 213021102 U CN213021102 U CN 213021102U CN 202020700103 U CN202020700103 U CN 202020700103U CN 213021102 U CN213021102 U CN 213021102U
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Abstract
The utility model discloses a double pipe heat exchanger structure. It includes water tank body, refrigerant subassembly and water pipe assembly, and refrigerant subassembly and water pipe assembly arrange the inside of water tank body in, and the refrigerant subassembly includes straight refrigerant pipe and curved refrigerant pipe, straight refrigerant pipe and curved refrigerant pipe intercommunication, the water pipe assembly include straight water pipe and curved water pipe, straight water pipe and curved water pipe intercommunication, straight water pipe arrange the inside of straight refrigerant pipe in, curved refrigerant pipe include interior refrigerant pipe and outer refrigerant pipe, curved water pipe arrange in between interior refrigerant pipe and the outer refrigerant pipe, the whole interior refrigerant pipe of curved water pipe cladding, outer refrigerant pipe winding in the outside of curved water pipe. The utility model has the advantages that: the heat exchange efficiency is high, and heat transfer efficiency is high, and refrigerant area of contact is big, and the refrigerant circulation is good, and firm degree is high, long service life, and fail safe nature is high, and water utilization rate is high, and anticorrosive rust-resistant effectual, the resistance to compression antiriot is effectual.
Description
Technical Field
The utility model belongs to the technical field of the relevant technique of water heater and specifically relates to indicate a double-pipe heat exchanger structure.
Background
The heat exchanger is an energy-saving device for transferring heat between materials between two or more fluids with different temperatures, and is used for transferring heat from the fluid with higher temperature to the fluid with lower temperature to make the temperature of the fluid reach the index specified by the process so as to meet the requirements of process conditions, and is also one of main devices for improving the utilization rate of energy. The heat exchanger industry relates to more than 30 industries such as heating ventilation, pressure vessels, reclaimed water treatment equipment, chemical industry, petroleum and the like, and an industrial chain is formed mutually.
The double-pipe heat exchanger is a heat exchanger which is most widely applied in petrochemical production at present. The device mainly comprises a shell (comprising an inner shell and an outer shell), a U-shaped elbow pipe, a stuffing box and the like. The required pipes can be made of common carbon steel, cast iron, copper, titanium, ceramic glass and the like respectively. The tube is typically secured to a support. Two different media can flow in the tube in opposite directions (or in the same direction) to achieve the purpose of heat exchange. In the process of reverse heat exchange, hot fluid enters from the upper part, cold fluid enters from the lower part, and heat is transferred from one fluid to the other fluid through the wall of the inner pipe. The distance that the hot fluid flows from the inlet end to the outlet end is called a tube pass; a heat exchanger in which fluid is introduced through a connection pipe of the shell and introduced from one end to the other end of the shell and which transfers heat in this manner is called a shell-side double pipe heat exchanger. Because the double-pipe heat exchanger is widely applied to petrochemical industry, refrigeration and other industrial departments, the original single heat transfer mode and heat transfer efficiency cannot meet the actual work and production, at present, researchers at home and abroad put forward various improvement schemes for the double-pipe heat exchanger so as to prolong the service life of the double-pipe heat exchanger and enhance the service efficiency of the double-pipe heat exchanger.
SUMMERY OF THE UTILITY MODEL
The utility model provides a overcome to have foretell not enough among the prior art, provide a double-pipe heat exchanger structure that heat transfer efficiency is high.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a double-pipe heat exchanger structure, includes water tank body, refrigerant subassembly and water pipe assembly arrange the inside of water tank body in, the refrigerant subassembly include straight refrigerant pipe and curved refrigerant pipe, straight refrigerant pipe and curved refrigerant pipe intercommunication, the water pipe assembly include straight water pipe and curved water pipe, straight water pipe and curved water pipe intercommunication, straight water pipe arrange the inside of straight refrigerant pipe in, curved refrigerant pipe include interior refrigerant pipe and outer refrigerant pipe, curved water pipe arrange in between interior refrigerant pipe and the outer refrigerant pipe, the whole interior refrigerant pipe of curved water pipe cladding, outer refrigerant pipe winding in the outside of curved water pipe.
The water pipe assembly is divided into two parts, namely a straight water pipe and a bent water pipe; dividing a refrigerant assembly into two parts, namely a straight refrigerant pipe and a bent refrigerant pipe; the straight water pipe is arranged in the straight refrigerant pipe, so that the straight water pipe is fully contacted with the refrigerant in the straight refrigerant pipe, and the heat exchange is more sufficient; the bent refrigerant pipe is divided into two parts, namely an inner refrigerant pipe and an outer refrigerant pipe, the bent water pipe is arranged between the inner refrigerant pipe and the outer refrigerant pipe, the inner refrigerant pipe can be fully contacted with the bent water pipe in one aspect to improve the heat exchange efficiency, the outer refrigerant pipe on the other reverse side can exchange heat with the bent water pipe and water in the water tank body, and the design can greatly improve the heat exchange efficiency between the refrigerant and the water, so that the aim of high heat transfer efficiency is fulfilled.
Preferably, the straight water pipe comprises a plurality of first water distribution pipes, external threads are arranged on the outer side faces of the first water distribution pipes, and all the first water distribution pipes are mutually twisted together. The straight water pipe is divided into the first water distribution pipes, so that the contact area between the straight water pipe and a refrigerant can be greatly increased; and the design of external screw thread can ensure to have the clearance between the first minute water pipe on the one hand to the circulation efficiency of refrigerant has been improved, thereby further improvement heat-exchange tube efficiency, on the other hand can improve the firm degree of first minute water pipe, and the external screw thread can play the effect of strengthening rib, thereby has improved the life of first minute water pipe.
Preferably, the bent water pipe comprises a plurality of second water distribution pipes, the cross sections of the second water distribution pipes are arc-shaped, and all the second water distribution pipes are spliced together to form a circular ring to cover the outer side of the inner refrigerant pipe. The bent water pipe is divided into the second water distribution pipes, so that the contact area between the bent water pipe and the inner cooling medium pipe can be greatly increased.
Preferably, the outer side surface of the second water dividing pipe is provided with a spiral heat exchange fin, the outer refrigerant pipe is wound on the outer side surface of the second water dividing pipe, and the spiral heat exchange fin is arranged between two adjacent circles of the outer refrigerant pipe. The design of heliciform heat transfer fin, outer refrigerant pipe also can carry out the heat exchange through contacting heliciform heat transfer fin on the one hand with curved water pipe to further improvement heat exchange pipe efficiency, on the other hand heliciform heat transfer fin can support and inject outer refrigerant pipe, can play the effect of support frame, thereby has improved the fail safe nature of curved water pipe and curved refrigerant pipe.
Preferably, the water pipe assembly is provided with a water inlet pipe orifice and a water outlet pipe orifice, the water inlet pipe orifice is arranged on the outer side of the lower part of the water tank body and is communicated with the water pipe assembly, the water outlet pipe orifice is arranged on the upper part of the inner part of the water tank body and is communicated with the water pipe assembly, the water outlet pipe orifice is provided with a spray head, the outer side of the lower part of the water tank body is provided with a hot water outlet, the hot water outlet is communicated with the inner part of the water tank body, and the hot water outlet is arranged below the water inlet pipe. The spray header is designed on the water outlet pipe orifice, so that when water enters the water tank body, the water is sprayed to the outside of the straight refrigerant pipe and the outside of the outer refrigerant pipe, and further the water can exchange heat again, so that the heat exchange efficiency is greatly improved; and the position design of hot water outlet can make the hydroenergy in the water tank body realize abundant heat exchange on the one hand, and on the other hand can make full use of this internal water of water tank, can not lead to this internal some water of water tank to can not by make full use of because of hot water outlet is too high.
Preferably, the water tank body comprises a shell and an inner container, the shell is a decarburized steel plate layer, the inner container is an enamel layer, and a layer expanding with heat and contracting with cold is arranged between the shell and the inner container. The compression resistance and the explosion resistance of the whole water tank body are improved through the design of the decarburized steel plate layer; by the design of the expansion and contraction layer, the expansion and contraction rate of the water tank body can be effectively reduced; through the design of enamel layer, can improve anticorrosive rust-resistant effect.
Preferably, the water pipe assembly and the refrigerant assembly are both made of pure copper materials, and radiating fins which are uniformly distributed are arranged on the outer side face of the straight refrigerant pipe. The corrosion resistance can be better realized by using a pure copper material; the radiating fins are arranged on the outer side of the straight refrigerant pipe to be in more sufficient contact with water in the water tank body, so that the heat conversion efficiency is improved.
Preferably, two adjacent straight water pipes are connected through a connecting rod, and the bent water pipe is connected with the inner wall of the water tank body through a support frame. Through the design of connecting rod and support frame, improved the firm degree of water pipe assembly and refrigerant subassembly, improved the life of whole device.
Preferably, a magnesium rod is arranged in the water tank body, the magnesium rod is in a circular ring shape, and the spray header is arranged in the middle of the magnesium rod and below the magnesium rod. Through the structural design of magnesium stick, can make magnesium stick and water fully contact, nevertheless when enamel layer local crackle appears, form less resistance through water between magnesium anode and the decarbonization steel sheet layer, the magnesium anode begins output current, flows to the metal inner bag department that exposes outside and produces a polarization membrane, repairs damaged enamel, makes the insulating corrosion prevention of gold domain inner bag.
Preferably, a sewage draining outlet is formed in the bottom of the water tank body. Through the design of drain, can conveniently wash the blowdown operation to water tank body inside, improve the inside clean health of water tank, improve life.
The utility model has the advantages that: the heat exchange efficiency is high, and heat transfer efficiency is high, and refrigerant area of contact is big, and the refrigerant circulation is good, and firm degree is high, long service life, and fail safe nature is high, and this internal water utilization ratio of water tank is high, and anticorrosive rust-resistant effectual, the anti-riot effect of resistance to compression is good.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a straight water pipe;
FIG. 3 is a schematic structural view of a bent water pipe;
fig. 4 is a schematic sectional structure of the bent water pipe.
In the figure: 1. the spray header comprises a spray header body, a liner body, a heat expansion and cold contraction layer, a shell, a water tank body, a magnesium rod, a straight refrigerant pipe, a bent refrigerant pipe, a connecting rod, a support frame, a water inlet pipe orifice, a hot water outlet, a refrigerant assembly, a discharge outlet, a water outlet pipe orifice, a first water dividing pipe, a first external thread, a second external thread, a first bent water pipe, a second external refrigerant pipe, a spiral heat exchange fin, a second external refrigerant pipe, a second internal refrigerant pipe, a first water dividing pipe, a second external refrigerant pipe.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description.
In the embodiment shown in fig. 1, a double-pipe heat exchanger structure includes a water tank body 5, a refrigerant assembly 13 and a water pipe assembly 23, the refrigerant assembly 13 and the water pipe assembly 23 are disposed inside the water tank body 5, the refrigerant assembly 13 includes a straight refrigerant pipe 7 and a bent refrigerant pipe 8, the straight refrigerant pipe 7 is communicated with the bent refrigerant pipe 8, the water pipe assembly 23 includes a straight water pipe 24 and a bent water pipe 18, the straight water pipe 24 is communicated with the bent water pipe 18, the straight water pipe 24 is disposed inside the straight refrigerant pipe 7, the bent refrigerant pipe 8 includes an inner refrigerant pipe 22 and an outer refrigerant pipe 19, the bent water pipe 18 is disposed between the inner refrigerant pipe 22 and the outer refrigerant pipe 19, the bent water pipe 18 covers the entire inner refrigerant pipe 22, and the outer refrigerant pipe 19 is wound outside the bent water pipe 18.
As shown in fig. 2, the straight water pipe 24 includes a plurality of first water distribution pipes 16, the outer side surface of the first water distribution pipe 16 is provided with external threads 17, and all the first water distribution pipes 16 are twisted together. As shown in fig. 3 and 4, the bent water pipe 18 includes a plurality of second water distribution pipes 21, the cross-sectional shape of the second water distribution pipes 21 is arc-shaped, and all the second water distribution pipes 21 are spliced together to form a circular ring to cover the outer side of the inner refrigerant pipe 22. The outer side surface of the second water dividing pipe 21 is provided with a spiral heat exchange fin 20, the outer refrigerant pipe 19 is wound on the outer side surface of the second water dividing pipe 21, and the spiral heat exchange fin 20 is arranged between two adjacent circles of the outer refrigerant pipes 19.
The water pipe assembly 23 is provided with a water inlet pipe orifice 11 and a water outlet pipe orifice 15, the water inlet pipe orifice 11 is arranged on the outer side of the lower part of the water tank body 5 and is communicated with the water pipe assembly 23, the water outlet pipe orifice 15 is arranged on the upper part of the inner part of the water tank body 5 and is communicated with the water pipe assembly 23, the water outlet pipe orifice 15 is provided with a spray head 1, the outer side of the lower part of the water tank body 5 is provided with a hot water outlet 12, the hot water outlet 12 is communicated with the inner part of the water tank body 5. The water pipe assembly 23 and the refrigerant assembly 13 are both made of pure copper materials, and radiating fins which are uniformly distributed are arranged on the outer side surface of the straight refrigerant pipe 7. Two adjacent straight water pipes 24 are connected through a connecting rod 9, and the bent water pipe 18 is connected with the inner wall of the water tank body 5 through a support frame 10.
The water tank body 5 comprises a shell 4 and an inner container 2, the shell 4 is a decarburized steel plate layer, the inner container 2 is an enamel layer, and an expansion with heat and contraction with cold layer 3 is arranged between the shell 4 and the inner container 2. The inside of water tank body 5 is equipped with magnesium stick 6, and the shape of magnesium stick 6 is the ring shape, and shower head 1 is arranged in the centre of magnesium stick 6 and is arranged in the below of magnesium stick 6. The bottom of the water tank body 5 is provided with a sewage draining outlet 14.
When in use, the refrigerant enters from the upper part of the water tank body 5 and flows out from the lower part of the water tank body 5; the water flows into cold water from the water inlet pipe orifice 11, wherein a first water dividing pipe 16 in the straight refrigerant pipe 7 is fully contacted with the refrigerant through an external thread 17, an inner refrigerant pipe 22 in the bent refrigerant pipe 8 is fully contacted with a second water dividing pipe 21, and an outer refrigerant pipe 19 is further contacted with the second water dividing pipe 21 through a spiral heat exchange fin 20, so that the first heat exchange is carried out when the water is sprayed out from the spray header 1 on the water outlet pipe orifice 15; the sprayed water contacts the outer side surface of the straight refrigerant pipe 7, the outer side surface of the outer refrigerant pipe 19 and the radiating fins again to perform secondary heat exchange, thereby further realizing heat exchange. The design of the pure copper water pipe assembly 23 is adopted, so that the water pipe assembly 23 is more corrosion-resistant; and the design of first water distribution pipe 16, external screw thread 17, second water distribution pipe 21 and heliciform heat transfer fin 20 for its and refrigerant area of contact is wider, and the heat exchange is more abundant, and heat exchange efficiency promotes greatly.
Claims (10)
1. A double-pipe heat exchanger structure is characterized by comprising a water tank body (5), a refrigerant assembly (13) and a water pipe assembly (23), wherein the refrigerant assembly (13) and the water pipe assembly (23) are arranged inside the water tank body (5), the refrigerant assembly (13) comprises a straight refrigerant pipe (7) and a bent refrigerant pipe (8), the straight refrigerant pipe (7) is communicated with the bent refrigerant pipe (8), the water pipe assembly (23) comprises a straight water pipe (24) and a bent water pipe (18), the straight water pipe (24) is communicated with the bent water pipe (18), the straight water pipe (24) is arranged inside the straight refrigerant pipe (7), the bent refrigerant pipe (8) comprises an inner refrigerant pipe (22) and an outer refrigerant pipe (19), the bent water pipe (18) is arranged between the inner refrigerant pipe (22) and the outer refrigerant pipe (19), the bent water pipe (18) wraps the whole inner refrigerant pipe (22), and the outer refrigerant pipe (19) is wound on the outer side of the bent water pipe (18).
2. A double pipe heat exchanger structure according to claim 1, characterized in that the straight water pipe (24) comprises a plurality of first water dividing pipes (16), the outer side of the first water dividing pipes (16) is provided with external threads (17), and all the first water dividing pipes (16) are twisted together.
3. The double-pipe heat exchanger structure as claimed in claim 1, wherein the bent water pipe (18) comprises a plurality of second water dividing pipes (21), the cross section of each second water dividing pipe (21) is arc-shaped, and all the second water dividing pipes (21) are spliced together to form a circular ring to cover the outer side of the inner refrigerant pipe (22).
4. A double-pipe heat exchanger structure as claimed in claim 3, wherein the outer side of the second water dividing pipe (21) is provided with a spiral heat exchange fin (20), the outer refrigerant pipe (19) is wound on the outer side of the second water dividing pipe (21), and the spiral heat exchange fin (20) is arranged between two adjacent circles of the outer refrigerant pipes (19).
5. The double-pipe heat exchanger structure according to claim 1, 2, 3 or 4, wherein the water pipe assembly (23) is provided with a water inlet pipe orifice (11) and a water outlet pipe orifice (15), the water inlet pipe orifice (11) is arranged on the outer side below the water tank body (5) and communicated with the water pipe assembly (23), the water outlet pipe orifice (15) is arranged on the upper side inside the water tank body (5) and communicated with the water pipe assembly (23), the water outlet pipe orifice (15) is provided with a spray header (1), the outer side below the water tank body (5) is provided with a hot water outlet (12), the hot water outlet (12) is communicated with the inside of the water tank body (5), and the hot water outlet (12) is arranged below the water inlet pipe orifice (11).
6. A double-pipe heat exchanger structure according to claim 1 or 2 or 3 or 4, characterized in that the water tank body (5) comprises a shell (4) and an inner container (2), the shell (4) is a decarburized steel plate layer, the inner container (2) is an enamel layer, and an expansion and contraction layer (3) is arranged between the shell (4) and the inner container (2).
7. The double-pipe heat exchanger structure according to claim 1, 2, 3 or 4, wherein the water pipe assembly (23) and the refrigerant assembly (13) are both made of pure copper materials, and the outer side surface of the straight refrigerant pipe (7) is provided with uniformly distributed radiating fins.
8. A double pipe heat exchanger structure according to claim 1 or 2 or 3 or 4, characterized in that two adjacent straight water pipes (24) are connected through a connecting rod (9), and the bent water pipe (18) is connected with the inner wall of the water tank body (5) through a support frame (10).
9. A double-pipe heat exchanger structure according to claim 5, characterized in that a magnesium rod (6) is arranged inside the water tank body (5), the magnesium rod (6) is in a circular ring shape, and the spray header (1) is arranged in the middle of the magnesium rod (6) and below the magnesium rod (6).
10. A double pipe heat exchanger structure according to claim 1 or 2 or 3 or 4, characterized in that the bottom of the tank body (5) is provided with a sewage draining outlet (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020700103.XU CN213021102U (en) | 2020-04-30 | 2020-04-30 | Double-pipe heat exchanger structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020700103.XU CN213021102U (en) | 2020-04-30 | 2020-04-30 | Double-pipe heat exchanger structure |
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| Publication Number | Publication Date |
|---|---|
| CN213021102U true CN213021102U (en) | 2021-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020700103.XU Active CN213021102U (en) | 2020-04-30 | 2020-04-30 | Double-pipe heat exchanger structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213021102U (en) |
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2020
- 2020-04-30 CN CN202020700103.XU patent/CN213021102U/en active Active
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