Novel small-flow large-temperature-difference heat exchanger
The design of parallel heat exchangers and liquid guide tubes, combined with ultrasonic vibrators, solves the problems of difficult processing and high energy consumption of traditional small-flow and large-temperature-difference heat exchangers, and achieves efficient temperature-difference regulation and energy-saving effects.
Patent Information
- Application Number
- CN202422646474.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-31
AI Technical Summary
In traditional industrial refrigeration and heating equipment, the design of small-flow, large-temperature-difference heat exchangers is complex, requiring an increase in the size and process of heat exchanger components, resulting in high processing difficulty, increased bypass risk, and high energy consumption.
The first heat exchanger, the second heat exchanger and the third heat exchanger are arranged side by side and connected through a liquid guide pipe. Internal heat exchange pipes and baffles are arranged inside. In combination with an ultrasonic vibrator and a generator, direct temperature difference regulation of a small flow fluid is achieved to avoid secondary heating or cooling operations.
It achieves efficient temperature difference regulation, reduces energy consumption, simplifies processing difficulty, increases the contact time between the fluid and the heat exchange tube, and has a simple structure, making it suitable for large-scale production.
Smart Images
Figure CN223361209U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of industrial refrigeration and heating, in particular to a novel small-flow and large-temperature-difference heat exchanger. Background Art
[0002] At present, in the field of industrial refrigeration, traditional industrial refrigeration or heating mostly uses large flow and small temperature difference. The main reason for small flow and small temperature difference is that the heat exchange structure design is simple and the heat exchange calculation is simple. It is used in ordinary commercial occasions where the water temperature change is not required. The main problem of large flow and small temperature difference is: using a larger water pump with higher water pump power and large water flow, the diameter of the heat exchange tube must also be correspondingly larger, and the water resistance will also increase accordingly. Practice has proved that under the same heat demand conditions, using small flow and large temperature difference can reduce the energy consumption of the unit, while the conventional small flow and large temperature difference are achieved by increasing the liquid flow of the heat exchanger. The problem with this conventional approach is that it requires increasing the number of heat exchange tubes and increasing the size of major components such as the heat exchanger shell and baffles. Increasing the flow, the number of flows on the end cover increases, the processing difficulty increases, and the bypass risk also increases accordingly.
[0003] In order to solve the above problems, a new type of small flow and large temperature difference heat exchanger is proposed. Utility Model Content
[0004] The purpose of the utility model is to provide a novel small flow rate and large temperature difference heat exchanger which can effectively avoid secondary heating or cooling operation, has high working efficiency and low energy consumption.
[0005] To achieve the above objectives, the present invention provides the following technical solutions:
[0006] A novel small-flow, large-temperature-difference heat exchanger comprises a first heat exchanger, a second heat exchanger, and a third heat exchanger, wherein the first heat exchanger, the second heat exchanger, and the third heat exchanger are arranged side by side, a first liquid guide pipe is provided between the first heat exchanger and the second heat exchanger, a first liquid guide pipe is provided between the second heat exchanger and the third heat exchanger, the first heat exchanger, the second heat exchanger, and the third heat exchanger are connected end to end through the first liquid guide pipe, and liquid inlets and liquid outlets are respectively provided at both ends of the side surfaces of the first heat exchanger, the liquid outlet of the first heat exchanger and the liquid inlet of the second heat exchanger are connected through the second liquid guide pipe, and the liquid outlet of the second heat exchanger and the liquid inlet of the third heat exchanger are connected through the second liquid guide pipe.
[0007] By adopting the above technical solution, the requirements of small flow and large temperature difference can be effectively and directly achieved without the need for primary cooling, secondary cooling or primary heating, secondary heating, and is highly practical.
[0008] Furthermore, an internal heat exchange tube is provided at the inner central axis position of the first heat exchanger, the second heat exchanger and the third heat exchanger, and the end of the internal heat exchange tube is connected to the end of the first liquid guide tube.
[0009] By adopting the above technical solution, it is ensured that the small flow fluid can flow stably and the entire heat exchange operation can be carried out effectively.
[0010] Furthermore, a plurality of baffles are fixedly connected to the inner walls of the first heat exchanger, the second heat exchanger, and the third heat exchanger, and a notch is provided at one side edge of the baffle. The notches on the plurality of baffles are staggeredly distributed in the internal positions of the first heat exchanger, the second heat exchanger, and the third heat exchanger.
[0011] By adopting the above technical solution, it is ensured that the refrigerant or the heat medium can effectively soak the inner heat exchange tube, and the contact time of the refrigerant or the heat medium and the inner heat exchange tube can be increased.
[0012] Furthermore, end covers are fixedly installed at both ends of the first heat exchanger, the second heat exchanger, and the third heat exchanger, and both ends of the first liquid guiding tube are respectively connected to the end covers at corresponding positions.
[0013] By adopting the above technical solution, the stability and convenience of connecting the first liquid conduit with the first heat exchanger, the second heat exchanger, and the third heat exchanger can be effectively improved.
[0014] Furthermore, brackets are fixedly connected at both ends of the side surfaces of the first heat exchanger, the second heat exchanger, and the third heat exchanger, and the brackets corresponding to the positions on the first heat exchanger and the second heat exchanger and the third heat exchanger are fixedly connected by bolts.
[0015] By adopting the above technical solution, the stability of the positions of the first heat exchanger, the second heat exchanger and the third heat exchanger is ensured.
[0016] Furthermore, a plurality of mounting positions are provided on the side surfaces of the first heat exchanger, the second heat exchanger, and the third heat exchanger, and an ultrasonic vibrator is fixedly installed on each mounting position. An ultrasonic generator is provided on the outside of the first heat exchanger, the second heat exchanger, and the third heat exchanger, and the ultrasonic vibrator is electrically connected to the ultrasonic generator.
[0017] By adopting the above technical solution, after long-term use, the ultrasonic generator and the ultrasonic vibrator can be used to perform ultrasonic cleaning operations on the interiors of the first heat exchanger, the second heat exchanger, and the third heat exchanger.
[0018] In summary, the beneficial technical effects of the present invention are:
[0019] When the utility model is in use, a small flow fluid with temperature adjustment is introduced from one end of the third heat exchanger. Under the guidance of the first liquid guide pipe, the small flow fluid passes through the third heat exchanger, the second heat exchanger, and the internal heat exchange tube inside the first heat exchanger in sequence, and finally flows out from one end of the first heat exchanger. In this process, the refrigerant or heat medium is introduced into the interior of the first heat exchanger from the liquid inlet on the side surface of the first heat exchanger. Then, under the guidance of the second liquid guide pipe, the refrigerant or heat medium can pass through the first heat exchanger, the second heat exchanger, and the interior of the third heat exchanger in sequence, and finally flows out from the liquid outlet on the side surface of the third heat exchanger. During the whole process, it can effectively The temperature of the small flow fluid in the internal heat exchange tube is adjusted. The small flow fluid can directly reach a higher temperature from a lower temperature, or directly reduce the higher temperature to a lower temperature, and directly achieve the required target temperature, eliminating the traditional tedious heating or cooling processes such as primary heating and secondary heating or primary cooling and secondary cooling. The heat exchanger can solve the problem of large temperature difference between the inlet and outlet liquids. Due to the large temperature difference between the inlet and outlet liquids, the liquid flow rate flowing through the heat exchanger is required to be small, so only a small-power liquid pump is needed, which reduces consumption and achieves the purpose of energy saving and consumption reduction. At the same time, the heat exchanger has a simple structure and strong versatility of parts, and can be produced on a larger scale. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0021] Figure 2 This is the internal structure diagram of the utility model.
[0022] In the figure: 1. first heat exchanger; 2. second heat exchanger; 3. third heat exchanger; 4. end cover; 5. first liquid guide tube; 6. second liquid guide tube; 7. bracket; 8. inner heat exchange tube; 9. baffle; 10. ultrasonic vibrator; 11. ultrasonic generator. DETAILED DESCRIPTION
[0023] The method of the utility model is further described in detail below with reference to the accompanying drawings.
[0024] Reference Figure 1 、 Figure 2A novel small flow and large temperature difference heat exchanger comprises a first heat exchanger 1, a second heat exchanger 2, and a third heat exchanger 3. The first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3 are arranged side by side. A first liquid guide pipe 5 is provided between the first heat exchanger 1 and the second heat exchanger 2, and a first liquid guide pipe 5 is provided between the second heat exchanger 2 and the third heat exchanger 3. The first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3 are connected end to end through the first liquid guide pipe 5. The first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3 are respectively provided with a liquid inlet and a liquid outlet at both ends of the side surface. The liquid outlet of the first heat exchanger 1 is connected to the liquid outlet of the second heat exchanger 2. The liquid inlets of the first heat exchanger 1 are connected through the second liquid conduit 6, and the liquid outlet of the second heat exchanger 2 is connected to the liquid inlet of the third heat exchanger 3 through the second liquid conduit 6. The first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3 are all provided with an inner heat exchange pipe 8 at the inner central axis position. The end of the inner heat exchange pipe 8 is connected to the end of the first liquid conduit 5. The first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3 are all fixedly installed with end covers 4 at both ends. The two ends of the first liquid conduit 5 are respectively connected to the end covers 4 at the corresponding positions. When in use, a small flow of fluid with temperature adjustment is introduced from one end of the third heat exchanger 3. Under the guidance of the first liquid conduit 5, The small flow fluid passes through the third heat exchanger 3, the second heat exchanger 2, and the internal heat exchange tube 8 inside the first heat exchanger 1 in sequence, and finally flows out from one end of the first heat exchanger 1. In this process, the refrigerant or heat medium is introduced into the interior of the first heat exchanger 1 from the liquid inlet on the side surface of the first heat exchanger 1. Then, under the guidance of the second liquid guide pipe 6, the refrigerant or heat medium can pass through the first heat exchanger 1, the second heat exchanger 2, and the interior of the third heat exchanger 3 in sequence, and finally flows out from the liquid outlet on the side surface of the third heat exchanger 3. During the whole process, the temperature of the small flow fluid in the internal heat exchange tube 8 can be effectively adjusted, and the small flow fluid can directly reach a higher temperature from a lower temperature. Or the higher temperature can be directly reduced to the lower temperature, and the required target temperature can be directly achieved, eliminating the traditional tedious heating or cooling processes such as primary heating and secondary heating or primary cooling and secondary cooling. The heat exchanger can solve the problem of large temperature difference between the inlet and outlet liquids. Due to the large temperature difference between the inlet and outlet liquids, the liquid flow rate flowing through the heat exchanger is required to be small, so only a low-power liquid pump is needed, which reduces consumption and achieves the purpose of energy saving and consumption reduction. At the same time, the heat exchanger has a simple structure and strong versatility of parts and components, and can be produced on a larger scale. The first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3 have the same structure, and heat exchangers with the same structure can be added or reduced according to actual needs.
[0025] Reference Figure 2A plurality of baffles 9 are fixedly connected to the inner walls of the first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3, and a notch is provided at one side edge of the baffle 9. The notches on the plurality of baffles 9 are staggeredly distributed in the internal positions of the first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3. When the refrigerant or heat medium passes through the interior of the first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3, due to the staggered distribution of the notches on the plurality of baffles 9, the refrigerant or heat medium flows in the first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3 in a continuous S-shaped route. While ensuring smooth flow, the contact time between the refrigerant or heat medium and the internal heat exchange tube 8 can be increased.
[0026] Reference Figure 1 The first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3 are fixedly connected with brackets 7 at both ends of the side surfaces. The first heat exchanger 1 and the second heat exchanger 2, as well as the second heat exchanger 2 and the third heat exchanger 3, are fixedly connected with the corresponding brackets 7 by bolts, which can effectively carry out fixed installation and ensure stable operation of the entire heat exchanger.
[0027] Reference Figure 1 A plurality of mounting positions are provided on the side surfaces of the first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3, and an ultrasonic vibrator 10 is fixedly installed on each mounting position. An ultrasonic generator 11 is provided on the outside of the first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3. The ultrasonic vibrator 10 is electrically connected to the ultrasonic generator 11. After a long period of work, when the interior of the first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3 is filled with fluid, the ultrasonic generator 11 is started. The ultrasonic generator 11 is a function of the ultrasonic vibrator 10. The ultrasonic vibrator 10 causes the first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3 to vibrate ultrasonically, thereby effectively cleaning the inner walls of the first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3.
[0028] Working principle: When in use, first install the heat exchanger at the designated position, and connect the fluid pipeline and the refrigerant pipeline or the heat medium pipeline. After the connection is completed, it can be used normally. Introduce a small flow fluid with temperature adjustment from one end of the third heat exchanger 3. Under the guidance of the first liquid guide pipe 5, the small flow fluid passes through the third heat exchanger 3, the second heat exchanger 2, and the internal heat exchange tube 8 inside the first heat exchanger 1 in turn, and finally flows out from one end of the first heat exchanger 1. In this process, the refrigerant or heat medium is introduced into the interior of the first heat exchanger 1 from the liquid inlet on the side surface of the first heat exchanger 1. Then, under the guidance of the second liquid guide pipe 6, the refrigerant or heat medium can pass through the interior of the first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3 in turn, and finally flows out from the liquid outlet on the side surface of the third heat exchanger 3. During the whole process, the temperature of the small flow fluid in the internal heat exchange tube 8 can be effectively adjusted, and the small flow The amount of fluid can directly reach a higher temperature from a lower temperature, or the higher temperature can be directly reduced to a lower temperature, and the required target temperature can be directly achieved. During the whole process, due to the staggered distribution of the notches on the multiple baffles 9, the refrigerant or heat medium flows in the first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3 in a continuous S-shaped route. While ensuring smooth flow, the contact time between the refrigerant or heat medium and the internal heat exchange tube 8 can be increased. After a long period of use, when the interior of the first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3 is filled with fluid, the ultrasonic generator 11 is started. The ultrasonic generator 11 is a function of the ultrasonic vibrator 10. The ultrasonic vibrator 10 causes the first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3 to vibrate ultrasonically, thereby effectively cleaning the inner walls of the first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3.
[0029] The real-time examples of this specific real-time method are all preferred real-time examples of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.
Claims
1. A novel small flow rate and large temperature difference heat exchanger, comprising a first heat exchanger (1), a second heat exchanger (2), and a third heat exchanger (3), characterized in that: The first heat exchanger (1), the second heat exchanger (2), and the third heat exchanger (3) are arranged side by side. A first liquid guide tube (5) is provided between the first heat exchanger (1) and the second heat exchanger (2), and a first liquid guide tube (5) is provided between the second heat exchanger (2) and the third heat exchanger (3). The first heat exchanger (1), the second heat exchanger (2), and the third heat exchanger (3) are connected end to end through the first liquid guide tube (5). Liquid inlets and liquid outlets are respectively provided at both ends of the side surfaces of the first heat exchanger (1), the second heat exchanger (2), and the third heat exchanger (3). The liquid outlet of the first heat exchanger (1) is connected to the liquid inlet of the second heat exchanger (2) through the second liquid guide tube (6), and the liquid outlet of the second heat exchanger (2) is connected to the liquid inlet of the third heat exchanger (3) through the second liquid guide tube (6).
2. The novel small flow rate and large temperature difference heat exchanger according to claim 1 is characterized in that: An internal heat exchange tube (8) is provided at the inner center axis position of each of the first heat exchanger (1), the second heat exchanger (2), and the third heat exchanger (3), and the end of the internal heat exchange tube (8) is connected to the end of the first liquid guide tube (5).
3. The novel small flow rate and large temperature difference heat exchanger according to claim 1 is characterized in that: A plurality of baffles (9) are fixedly connected to the inner walls of the first heat exchanger (1), the second heat exchanger (2), and the third heat exchanger (3); a notch is provided at one side edge of the baffle (9); and the notches on the plurality of baffles (9) are staggeredly distributed at internal positions of the first heat exchanger (1), the second heat exchanger (2), and the third heat exchanger (3).
4. The novel small flow rate and large temperature difference heat exchanger according to claim 1 is characterized in that: End covers (4) are fixedly mounted at both ends of the first heat exchanger (1), the second heat exchanger (2), and the third heat exchanger (3), and both ends of the first liquid guide tube (5) are respectively connected to the end covers (4) at corresponding positions.
5. The novel small flow rate and large temperature difference heat exchanger according to claim 1 is characterized in that: Brackets (7) are fixedly connected at both ends of the side surfaces of the first heat exchanger (1), the second heat exchanger (2), and the third heat exchanger (3); the first heat exchanger (1) and the second heat exchanger (2), as well as the brackets (7) corresponding to the positions on the second heat exchanger (2) and the third heat exchanger (3), are fixedly connected by bolts.
6. The novel small flow rate and large temperature difference heat exchanger according to claim 1 is characterized in that: A plurality of mounting positions are provided on the side surfaces of the first heat exchanger (1), the second heat exchanger (2), and the third heat exchanger (3), and an ultrasonic vibrator (10) is fixedly installed on each mounting position. An ultrasonic generator (11) is provided on the outside of the first heat exchanger (1), the second heat exchanger (2), and the third heat exchanger (3), and the ultrasonic vibrator (10) is electrically connected to the ultrasonic generator (11).