Flow dividing device of heat exchanger
By designing a heat exchanger shunt device including a shunt pipe, a cold flow connection, a heat flow connection, an isolation plate, an insulation layer, a main switch, a secondary switch and a filter, the problem of the diversion device in the prior art is not easy to expand and impurities precipitate leads to blockage and insufficient insulation functions, achieving uniform shunt and insulation of the fluid, extending the service life and improving the heat exchange efficiency.
Patent Information
- Application Number
- CN202421162937.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-27
AI Technical Summary
The existing heat exchanger shunt devices have problems such as the external shunt being difficult to expand, fluid impurities precipitate, and insufficient insulation function.
A shunt device including a shunt pipe, a cold flow connection, a hot flow connection, an isolation plate, an insulation layer, a main switch, a secondary switch and a filter are designed. The secondary drainage and filtration of the fluid are achieved by expanding the joint and plugging the cover, and the insulation layer reduces temperature loss.
The uniform flow and insulation of the fluid are achieved, the risks of impurities are reduced, the service life of the device is extended, and the heat exchange efficiency is improved.
Smart Images
Figure CN222544530U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat exchangers, in particular to a flow dividing device of a heat exchanger. Background Art
[0002] A heat exchanger is a device used to transfer heat between two or more fluids, usually in heating, cooling or evaporation processes. It is widely used in many industries and daily life, including air conditioning systems, heating systems, chemical processes, petroleum industry and food processing. The working principle of the heat exchanger is based on the physical principle of heat conduction, and the temperature is regulated or the energy is transferred through the heat transfer between two or more fluids. The main heat transfer modes include convection, conduction and radiation. A heat exchanger usually consists of one or more heat transfer surfaces, which can be pipes, plates or other structures to increase the surface area for heat transfer. The flow divider of the heat exchanger is a device used to control the flow distribution of the fluid inside the heat exchanger. It is usually designed as a structure so that the fluid can be evenly distributed inside the heat exchanger and have a suitable contact time on the heat transfer surface to achieve efficient heat exchange.
[0003] In the prior art, the external diverter of some heat exchangers is an independent entity, which is not easy to expand and connect. The fluid inside the diverter has certain impurities, which will precipitate on the inner wall of the diverter over time, thereby causing the diverter to be blocked. In addition, the impurities are not easy to clean, which has a certain impact on the service life of the diverter device. The thermal insulation function of the existing diverter is not very good. The temperature of the hot flow is easy to lose in a colder environment, and the temperature of the cold flow is easy to rise in a hotter environment, so that the temperature required by the fluid during use cannot be reached within a certain period of time. Utility Model Content
[0004] The purpose of the utility model is to provide a diversion device for a heat exchanger, which can divert the cold and hot flows of the heat exchanger and expand the range of the fluid, increase the number of external devices, filter impurities in the fluid, reduce the adhesion surface of impurities, simplify cleaning and increase its service life, insulate the cold and hot flows, and reduce temperature loss during the diversion process.
[0005] To achieve the above-mentioned purpose, a diverter device of a heat exchanger is provided, including a diverter pipe, a cold flow connecting pipe is arranged on the left side of the diverter pipe, a hot flow connecting pipe is arranged on the right side of the diverter pipe, a cold flow joint is fixedly connected to the left side of the upper surface of the diverter pipe, a hot flow joint is fixedly connected to the right side of the upper surface of the diverter pipe, an isolation plate is fixedly connected to the inner middle part of the diverter pipe, and a secondary diverter joint is arranged on the lower surface of the diverter pipe.
[0006] According to the diverter device of the heat exchanger, the outer surface of the diverter pipe is covered with a thermal insulation layer.
[0007] According to the flow diversion device of the heat exchanger, main switches are provided on the outer surfaces of the cold flow joint and the hot flow joint.
[0008] According to the flow diversion device of the heat exchanger, a secondary switch is provided on the outer surface of the secondary flow diversion joint.
[0009] According to the diversion device of a heat exchanger, a cold flow expansion joint is provided on the left side of the cold flow connecting pipe, a plugging cover is provided at the left end of the cold flow expansion joint, the size of the cold flow expansion joint is the same as that of the plugging cover, a tube body opening is opened at the periphery of the cold flow expansion joint, a cover body opening is opened at the periphery of the plugging cover, the tube body opening of the cold flow expansion joint corresponds to the cover body opening, the cold flow expansion joint and the plugging cover are threadedly connected by external bolts and nuts, a hot flow expansion joint is provided on the right side of the hot flow connecting pipe, a plugging cover is provided at the right end of the hot flow expansion joint, the size of the hot flow expansion joint is the same as that of the plugging cover, a tube body opening is opened at the periphery of the hot flow expansion joint, the tube body opening of the hot flow expansion joint corresponds to the cover body opening, and the hot flow expansion joint and the plugging cover are connected by external bolts and nuts.
[0010] According to the diversion device of a heat exchanger, the space between the cold flow expansion joint inside the diversion tube and the isolation plate is the cold flow chamber, and the space between the hot flow expansion joint inside the diversion tube and the isolation plate is the hot flow chamber.
[0011] According to the flow diversion device of the heat exchanger, a filter is provided in the lower tube body of the cold flow joint, and a filter is provided in the lower tube body of the hot flow joint.
[0012] According to the flow diversion device of the heat exchanger, the number of the secondary flow diversion joints is six.
[0013] The utility model has the following beneficial effects:
[0014] 1. Compared with the prior art, the flow diversion device of the heat exchanger can be provided with a cold flow pipe to externally pipe the cold flow for secondary drainage, and can be provided with a hot flow pipe to externally pipe the hot flow for secondary drainage. By providing a main switch, it can be controlled separately whether the cold flow and hot flow flow into the cold flow bin or the hot flow bin, by providing a secondary switch, it can be controlled whether the cold and hot flow flow into the external device, and by providing an insulation layer, the cold and hot flow can be kept warm to prevent the temperature loss of the cold and hot flow during the flow process.
[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;
[0017] Figure 1 This is a front view of a flow diversion device of a heat exchanger according to the utility model;
[0018] Figure 2 It is a cross-sectional view of a flow diversion device of a heat exchanger of the utility model;
[0019] Figure 3 A schematic diagram of a filter of a flow diversion device of a heat exchanger according to the utility model;
[0020] Figure 4 This is a schematic diagram of a plugging cover of a flow diversion device of a heat exchanger according to the utility model;
[0021] Figure 5 This is a bolt and nut engagement diagram of a flow diversion device of a heat exchanger according to the utility model.
[0022] Legend:
[0023] 1. Shunt pipe; 2. Cold flow connection pipe; 3. Hot flow connection pipe; 4. Main switch; 5. Secondary switch; 6. Secondary shunt joint; 7. Cold flow joint; 8. Hot flow joint; 9. Cold flow chamber; 10. Hot flow chamber; 11. Isolation plate; 12. Cold flow expansion joint; 13. Hot flow expansion joint; 14. Insulation layer; 15. Filter; 16. Pipe body opening; 17. Cover body opening; 18. Plug cover; 19. Nut; 20. Bolt. DETAILED DESCRIPTION
[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0025] Reference Figure 1-5, the utility model embodiment is a shunt device of a heat exchanger, which includes a shunt pipe 1, the outer surface of the shunt pipe 1 is covered with an insulation layer 14, a cold flow pipe 2 is arranged on the left side of the shunt pipe 1, a cold flow expansion joint 12 is arranged on the left side of the cold flow pipe 2, a plugging cover 18 is arranged on the left end of the cold flow expansion joint 12, the size of the cold flow expansion joint 12 is the same as that of the plugging cover 18, a pipe body opening 16 is opened on the periphery of the cold flow expansion joint 12, a cover body opening 17 is opened on the periphery of the plugging cover 18, the pipe body opening 16 of the cold flow expansion joint 12 corresponds to the cover body opening 17, the cold flow expansion joint 12 and the plugging cover 18 are threadedly connected by external bolts 19 and nuts 20, a hot flow pipe 3 is arranged on the right side of the shunt pipe 1, a cold flow joint 7 is fixedly connected to the left side of the upper surface of the shunt pipe 1, a filter 15 is arranged in the lower side pipe body of the cold flow joint 7, a hot flow joint 8 is fixedly connected to the right side of the upper surface of the shunt pipe 1, and the lower side pipe body of the hot flow joint 8 A filter 15 is arranged inside, a heat flow expansion joint 13 is arranged on the right side of the heat flow connecting pipe 3, a plugging cover 18 is arranged on the right end of the heat flow expansion joint 13, the size of the heat flow expansion joint 13 is the same as that of the plugging cover 18, a tube body opening 16 is opened on the periphery of the heat flow expansion joint 13, the tube body opening 16 of the heat flow expansion joint 13 corresponds to the cover body opening 17, the heat flow expansion joint 13 and the plugging cover 18 are connected by external bolts 19 and nuts 20, the outer surfaces of the cold flow joint 7 and the hot flow joint 8 are both provided with a main switch 4, the inner middle part of the shunt pipe 1 is fixedly connected with an isolation plate 11, the space between the cold flow expansion joint 12 and the isolation plate 11 inside the shunt pipe 1 is a cold flow bin 9, the space between the hot flow expansion joint 13 and the isolation plate 11 inside the shunt pipe 1 is a hot flow bin 10, a secondary shunt joint 6 is arranged on the lower surface of the shunt pipe 1, a secondary switch 5 is arranged on the outer surface of the secondary shunt joint 6, and the number of the secondary shunt joints 6 is six.
[0026] The above structure can be connected to the cold flow end of the heat exchanger by providing a cold flow joint 7, and can be connected to the hot flow end of the heat exchanger by providing a hot flow joint 8. By providing an isolation plate 11, the mutual flow between the cold and hot flows can be isolated to reduce the temperature neutralization between the two. By providing a cold flow pipe 2, the external pipe body can be used for secondary drainage of the cold flow. By providing a hot flow pipe 3, the external pipe body can be used for secondary drainage of the hot flow pipe. By providing a secondary diversion joint 6, the device can be connected to external equipment.
[0027] By providing a main switch 4, it is possible to control whether the cold and hot flows flow into the cold flow compartment 9 and the hot flow compartment 10. By providing a secondary switch 5, it is possible to individually control whether the cold flow in the cold flow compartment 9 flows into the external device, and it is also possible to control whether the hot flow in the hot flow compartment 10 flows into the external device.
[0028] The heat-insulating layer 14 can be provided to insulate the cold flow and the hot flow in the device to prevent the temperature from being lost, and the filter 15 can be provided to filter the impurities in the fluid in the device.
[0029] Working principle: Before using the shunt device of the heat exchanger, first turn off the main switch 4 and the secondary switch 5, use bolts 20 and nuts 19 to connect the cold flow expansion joint 12 and the plugging cover 18 together, connect the hot flow expansion joint 13 and the plugging cover 18 together, and then connect the secondary shunt joint 6 to the external device, and finally connect the cold flow joint 7 to the cold flow of the heat exchanger, and the hot flow joint 8 to the hot flow of the heat exchanger. When in use, turn on the main switch 4 to allow the cold flow to flow into the cold flow bin 9, and the hot flow to flow into the hot flow bin 10, and turn on the secondary switch 5 to allow the fluid to flow into the external device.
[0030] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. A flow diversion device for a heat exchanger, characterized in that: The invention comprises a shunt pipe (1), wherein a cold flow connecting pipe (2) is arranged on the left side of the shunt pipe (1), a hot flow connecting pipe (3) is arranged on the right side of the shunt pipe (1), a cold flow joint (7) is fixedly connected to the left side of the upper surface of the shunt pipe (1), a hot flow joint (8) is fixedly connected to the right side of the upper surface of the shunt pipe (1), an isolation plate (11) is fixedly connected to the inner middle part of the shunt pipe (1), and a secondary shunt joint (6) is arranged on the lower surface of the shunt pipe (1).
2. The flow diversion device of a heat exchanger according to claim 1, characterized in that: The outer surface of the diverter pipe (1) is coated with a thermal insulation layer (14).
3. The flow diversion device of a heat exchanger according to claim 1, characterized in that: The outer surfaces of the cold flow joint (7) and the hot flow joint (8) are both provided with a main switch (4).
4. The flow dividing device of a heat exchanger according to claim 1, characterized in that: A secondary switch (5) is provided on the outer surface of the secondary flow-dividing joint (6).
5. The flow dividing device of a heat exchanger according to claim 1, characterized in that: A cold flow expansion joint (12) is arranged on the left side of the cold flow connecting pipe (2), a plugging cover (18) is arranged on the left end of the cold flow expansion joint (12), the size of the cold flow expansion joint (12) is the same as that of the plugging cover (18), a tube body opening (16) is opened on the periphery of the cold flow expansion joint (12), a cover body opening (17) is opened on the periphery of the plugging cover (18), the tube body opening (16) of the cold flow expansion joint (12) corresponds to the cover body opening (17), and the cold flow expansion joint (12) and the plugging cover (18) are connected by external bolts (19). ) is threadedly connected with a nut (20), a heat flow expansion joint (13) is arranged on the right side of the heat flow connecting pipe (3), a plugging cover (18) is arranged on the right end of the heat flow expansion joint (13), the size of the heat flow expansion joint (13) is the same as that of the plugging cover (18), a tube body opening (16) is opened on the periphery of the heat flow expansion joint (13), the tube body opening (16) of the heat flow expansion joint (13) corresponds to the cover body opening (17), and the heat flow expansion joint (13) and the plugging cover (18) are connected by an external bolt (19) and a nut (20).
6. The flow dividing device of a heat exchanger according to claim 1, characterized in that: The space between the cold flow expansion joint (12) inside the shunt pipe (1) and the isolation plate (11) is the cold flow chamber (9), and the space between the hot flow expansion joint (13) inside the shunt pipe (1) and the isolation plate (11) is the hot flow chamber (10).
7. The flow dividing device of a heat exchanger according to claim 1, characterized in that: A filter (15) is provided in the lower tube body of the cold flow joint (7), and a filter (15) is provided in the lower tube body of the hot flow joint (8).
8. The flow dividing device of a heat exchanger according to claim 1, characterized in that: The number of the secondary flow-dividing joints (6) is six.