CN218380592U - Integrated pipeline heat exchanger - Google Patents
Integrated pipeline heat exchanger Download PDFInfo
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- CN218380592U CN218380592U CN202222190623.2U CN202222190623U CN218380592U CN 218380592 U CN218380592 U CN 218380592U CN 202222190623 U CN202222190623 U CN 202222190623U CN 218380592 U CN218380592 U CN 218380592U
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- main pipeline
- heat exchange
- outer sleeve
- exchange water
- pipe joint
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Abstract
The utility model discloses an integral type pipe heat exchanger, include: a main pipeline, one end of which is a fluid medium inlet and the other end of which is a fluid medium outlet; the outer sleeve is coaxially arranged with the main pipeline, and two ends of the outer sleeve are respectively provided with an end plate which is hermetically connected with the main pipeline; the radial partition plates are used for partitioning an interlayer between the outer sleeve and the main pipeline into a plurality of overflowing cavities, the radial partition plates are distributed along the circumferential direction of the outer sleeve, two ends of each radial partition plate are hermetically connected with the end plate, the inner side of each radial partition plate is hermetically connected with the outer side wall of the main pipeline, and the outer side of each radial partition plate is hermetically connected with the inner side wall of the outer sleeve; and the heat exchange water pipe joints are arranged at two ends of each overflowing cavity in pairs, and each heat exchange water pipe joint comprises a heat exchange water return pipe joint close to the inlet of the main pipeline and a heat exchange water supply pipe joint close to the outlet of the main pipeline. The utility model discloses drop into low, take up an area of for a short time, the heat transfer is effectual, is particularly suitable for electromechanical device and cools off the temperature.
Description
Technical Field
The utility model belongs to the technical field of industrial heat exchanger technique and specifically relates to an integral type pipe heat exchanger is related to.
Background
In the industrial production process, large-scale electromechanical equipment can generate a large amount of heat during operation, and the heat needs to be rapidly and timely discharged, so that key parts of the equipment are cooled, and otherwise, the normal operation of the equipment can be influenced. For cooling down electromechanical equipment, plate heat exchangers and cooling towers are usually used. However, the plate heat exchanger has a smaller cross section of a flow passage, so that the requirement on cooling water quality is higher, and when blockage occurs, the heat exchange coefficient is reduced, the heat exchange quantity is reduced, and the heat exchange efficiency is influenced; the arrangement of the cooling tower not only needs a larger space, but also causes environmental pollution because the cooling tower generates the phenomenon of water drifting, and the cooling tower needs to be subjected to heat preservation treatment in winter, so that the process is more complex.
Disclosure of Invention
In order to solve the problem, the utility model provides a simple structure, lower, the small in size of cost, the difficult integral type pipe heat exchanger who blocks up specifically can take following technical scheme:
integral type pipe heat exchanger, include
A main pipeline, one end of which is a fluid medium inlet and the other end is a fluid medium outlet;
the outer sleeve is coaxially arranged with the main pipeline, and two ends of the outer sleeve are respectively provided with an end plate which is hermetically connected with the main pipeline;
the radial partition plates are used for partitioning an interlayer between the outer sleeve and the main pipeline into a plurality of overflowing cavities, the radial partition plates are distributed along the circumferential direction of the outer sleeve, two ends of each radial partition plate are hermetically connected with the end plate, the inner side of each radial partition plate is hermetically connected with the outer side wall of the main pipeline, and the outer side of each radial partition plate is hermetically connected with the inner side wall of the outer sleeve;
and the heat exchange water pipe joints are arranged at two ends of each overflowing cavity in pairs, and each heat exchange water pipe joint comprises a heat exchange water return pipe joint close to the inlet of the main pipeline and a heat exchange water supply pipe joint close to the outlet of the main pipeline.
Preferably, the radial partition plates are uniformly distributed along the circumferential direction of the outer sleeve, so that the radial partition plates are easy to manufacture and beneficial to improving the structural stability.
Preferably, the heat exchange water return pipe joint and the heat exchange water supply pipe joint are both arranged on the pipe wall of the outer sleeve, and the process circulating water pipeline of the connecting unit is easy to install.
Preferably, the heat exchange water supply pipe joint is connected with a unit process circulating cooling water inlet, and the heat exchange water return pipe joint is connected with a unit process circulating cooling water outlet, so that the heat exchange efficiency can be effectively improved.
Preferably, the fluid medium in the main pipeline is sewage, reclaimed water or domestic water, the water quantity is large, the temperature is low, and no additional energy consumption is needed.
The utility model provides an integral type pipeline heat exchanger drops into lowly, takes up an area of for a short time, and the heat transfer is effectual, is particularly suitable for electromechanical device and cools off. Compared with the prior art, the method has the following advantages:
1. media flowing in the main pipeline are generally sewage, reclaimed water, domestic water and the like, the fluid flow is high, the temperature is low, the fluid can be used as a natural cold source, the fluid in the main pipeline and circulating cooling water can exchange heat fully, the residual heat of equipment can be effectively taken away, and the energy conservation and the environmental protection are realized;
2. the integrated pipeline heat exchanger can be buried or laid in the open as a pipeline, has strong adaptability to the installation environment, can be arranged under the condition of not occupying redundant space, and greatly meets the heat exchange requirement of electromechanical equipment;
3. the number of the cavity runners of the integrated pipeline heat exchanger can be adjusted according to the number and the group number of the external electromechanical equipment, and the integrated pipeline heat exchanger can be flexibly matched with the electromechanical equipment;
4. the integrated pipeline heat exchanger is divided into a plurality of independent chambers, can independently exchange heat with electromechanical equipment, and the fluid state and the flow of fluid in a single chamber are independent of each other, are not influenced by the outside, and can meet the heat exchange requirements of different types of electromechanical equipment to a great extent;
5. the integrated pipe heat exchanger has the advantages that the inner space of the cavity is large, the requirement on cooling water quality is low, and the requirement on high flow rate and high heat exchange capacity of electromechanical equipment can be met.
Drawings
Fig. 1 is a schematic structural view of the present invention (omitting the end plate).
Fig. 2 is a cross-sectional view of fig. 1.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific working procedures are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1 and 2, the integrated pipe heat exchanger of the present invention comprises a main pipe 1, one end of which is a fluid medium inlet, and the other end of which is a fluid medium outlet, wherein the fluid medium can be sewage, reclaimed water, domestic water, etc.; the device also comprises an outer sleeve 2 which is coaxial with the main pipeline 1, and two ends of the outer sleeve 2 are respectively provided with an end plate which is hermetically connected with the main pipeline 1; a plurality of radial baffles 3 are arranged in the interlayer between the outer sleeve 2 and the main pipeline 1, two ends of each radial baffle 3 are connected with the end plate in a sealing way, the inner side of each radial baffle is connected with the outer side wall of the main pipeline 1 in a sealing way, and the outer side of each radial baffle is connected with the inner side wall of the outer sleeve 2 in a sealing way, so that a plurality of overflowing cavities 4 are formed. Under the general condition, radial baffle 3 is along 2 circumference evenly distributed of outer tube, easily makes, and is favorable to improving structural stability, if the discharge through each overflowing chamber 4 is different, also can lay the position of radial baffle 3 according to discharge, makes the volume and the discharge looks adaptation that flow chamber 4 crossed. Each overflowing cavity 4 is communicated with a water supply pipe and a water return pipe of the unit process circulating cooling water. Specifically, two ends of the outer sleeve 2 of each overflowing cavity 4 are respectively provided with a heat exchange water pipe connector, namely a heat exchange water return pipe connector 5 arranged close to the inlet of the main pipe and a heat exchange water supply pipe connector 6 arranged close to the outlet of the main pipe. The heat exchange water supply pipe joint 6 is connected with a unit process circulating cooling water inlet (cold end), and the heat exchange water return pipe joint 5 is connected with a unit process circulating cooling water outlet (hot end).
During operation, unit technology circulating cooling water (cold end) firstly enters the electromechanical device through the inlet to absorb heat generated by the bearing, then the unit technology circulating cooling water (hot end) enters the overflowing cavity 4 through the heat exchange water return pipe joint 5, and exchanges heat with fluid media in the main pipeline 1 to transfer heat to the fluid media, water in the overflowing cavity 4 is cooled, and the water continues to enter the unit device through the heat exchange water supply pipe joint 6 to circulate repeatedly.
The plurality of overflowing cavities 4 distributed along the circumferential direction of the main pipeline 1 can ensure that the process circulating cooling water is uniformly distributed on the cross section of the overflowing cavity 4 in a flow velocity mode, and uniform heat exchange between the process circulating cooling water in the overflowing cavities 4 and the fluid medium in the main pipeline 1 is facilitated; secondly, the overflowing cavity 4 is only used as an overflowing channel of the process circulating cooling water, the internal structure is simple, the probability of the heat exchanger breaking down is reduced to a great extent, and the reliability of the operation of equipment is improved; thirdly, because the utility model discloses a cover barrel type structure, the inside and outside water of sleeve is mutual isolation, mutual independence, therefore quality of water and flow state do not influence each other.
In specific implementation, the length of the heat exchanger is calculated according to the following method:
the heat exchanger heat transfer coefficient can be calculated using the following formula:
in the formula, K is the heat exchange coefficient of the heat exchanger per unit length, W/(m.K);
λ 1 the thermal conductivity of the pipe wall of the water supply pipeline or the sewage pipeline is W/(m.K);
d i and d 0 The inner and outer diameters m of the water supply or sewage pipeline respectively;
h i water supply or sewage pipeline inner wall surface heat transfer coefficient W/(m) 2 ·K）；
h 0 Water supply or sewage pipeline outer wall surface heat transfer coefficient W/(m) 2 ·K）。
The water characteristic number equation at different positions is as follows:
in the formula, nu i The number of Knudell for water supply or water on the inner wall surface of a sewage pipeline;
Nu 0 the Nurseel number of water for the outer wall surface of a water supply pipeline or a sewage pipeline;
Re i reynolds number of water for water supply or sewage pipeline;
Re 0 the Reynolds number of the water in the circulating flow channel;
Pr i is the prandtl number of water in a water supply or sewage pipeline;
Pr 0 the number of water prandtl in the circulating flow channel;
the surface heat transfer coefficient h is calculated as:
wherein h is the surface convection heat transfer coefficient, W/(m) 2 ·K）；
Nu is Nu Selt criterion, has no dimensional number and reflects the strength of the convective heat transfer process;
λ 2 the heat conductivity of water in the annular flow passage, W/(m.K)
d is the difference between the inner diameter of the water supply or sewage pipeline and the outer diameter of the inner pipe, m.
The heat transfer formula of the heat exchanger is as follows:
in the formula, Q is heat exchange quantity, namely the heat quantity of the water turbine generator set, W;
k is the heat exchange coefficient of the heat exchanger, W/(m.K);
Δ tm is the heat transfer temperature difference, DEG C;
l is the heat exchange area, m.
In the formula, t w Is the temperature of the fluid outside the annular coil heat exchanger, DEG C;
th ，0 and th ，i The temperatures of the outlet and inlet of the heat exchanger are respectively in DEG C.
In summary, the heat exchange thermal resistance or heat exchange coefficient of the heat exchanger can be obtained according to the equations (1) to (4), and the length of the heat exchanger can be calculated according to the equations (5) and (6).
It should be noted that in the description of the present invention, terms of orientation or positional relationship such as "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Claims (5)
1. An integral type pipe heat exchanger which characterized in that: comprises that
A main pipeline, one end of which is a fluid medium inlet and the other end of which is a fluid medium outlet;
the outer sleeve is coaxially arranged with the main pipeline, and two ends of the outer sleeve are respectively provided with an end plate which is hermetically connected with the main pipeline;
the radial partition plates are used for dividing an interlayer between the outer sleeve and the main pipeline into a plurality of overflowing cavities, the radial partition plates are distributed along the circumferential direction of the outer sleeve, two ends of each radial partition plate are connected with the end plates in a sealing manner, the inner side of each radial partition plate is connected with the outer side wall of the main pipeline in a sealing manner, and the outer side of each radial partition plate is connected with the inner side wall of the outer sleeve in a sealing manner;
and the heat exchange water pipe joints are arranged at two ends of each overflowing cavity in pairs, and each heat exchange water pipe joint comprises a heat exchange water return pipe joint close to the inlet of the main pipeline and a heat exchange water supply pipe joint close to the outlet of the main pipeline.
2. The integrated tube heat exchanger of claim 1, wherein: the radial baffles are uniformly distributed along the circumferential direction of the outer sleeve.
3. The integrated tube heat exchanger of claim 1, wherein: and the heat exchange water return pipe joint and the heat exchange water supply pipe joint are both arranged on the pipe wall of the outer sleeve.
4. The integrated tube heat exchanger of claim 1, wherein: the heat exchange water supply pipe joint is connected with a unit process circulating cooling water inlet, and the heat exchange water return pipe joint is connected with a unit process circulating cooling water outlet.
5. The integrated tube heat exchanger of claim 1, wherein: the fluid medium in the main pipeline is sewage, reclaimed water or domestic water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222190623.2U CN218380592U (en) | 2022-08-19 | 2022-08-19 | Integrated pipeline heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222190623.2U CN218380592U (en) | 2022-08-19 | 2022-08-19 | Integrated pipeline heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218380592U true CN218380592U (en) | 2023-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222190623.2U Active CN218380592U (en) | 2022-08-19 | 2022-08-19 | Integrated pipeline heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218380592U (en) |
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2022
- 2022-08-19 CN CN202222190623.2U patent/CN218380592U/en active Active
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