Shunting structure for refrigerant to be subjected to heat exchange based on heat exchange core body

Abstract

The utility model relates to the technical field of heat exchangers, in particular to a to-be-heat-exchanged refrigerant flow dividing structure based on a heat exchange core body, the flow dividing structure comprises a heat exchange coil pipe and a heat exchange core body, the heat exchange coil pipe comprises a main pipe and a coil pipe wound on the outer side of the main pipe, the main pipe communicates with the coil pipe, and a winding space is formed in the middle of the coil pipe; the first baffle is fixedly arranged on the main pipe and used for preventing cold fluid from directly flowing into the coiling space, and the first baffle is located at the cold fluid flowing-in end of the coiling space. A second baffle is fixedly arranged on the first baffle, and flow dividing holes are formed in the second baffle. Guide plates are fixedly arranged on the second baffle, a channel for cold fluid to flow is formed between every two adjacent guide plates, and the channels face the coil pipe. The heat exchanger has the effect that cold fluid makes full contact with the heat exchange coil.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat exchangers, in particular to a flow distribution structure of a heat-exchangeable refrigerant based on a heat-exchange core. BACKGROUND

[0002] A volumetric heat exchanger is a heat exchanger that uses cold and hot fluids to alternately flow through the surface of a heat storage body (filler) in a heat storage chamber to exchange heat. A volumetric heat exchanger is also called a regenerative heat exchanger. In practical applications, the volumetric heat exchanger is widely used in industries, businesses, and residential life due to its excellent heat exchange efficiency and stability.

[0003] The key components of a volumetric heat exchanger mainly include a shell, a heat exchange coil, a tube sheet, and inlet and outlet water pipes. In a volumetric heat exchanger, the flow of fluid can be divided into two main types: parallel flow and counter flow. In parallel flow, cold fluid and hot fluid flow in the same direction in the heat exchanger. In this case, the cold fluid enters the heat exchanger from one port, while the hot fluid enters from another port, both flow along the same path, and exchange heat in the heat exchanger. However, the heat exchange coil is coiled in a serpentine shape, which results in a large space in the middle of the heat exchange coil, so that the cold fluid does not come into contact with the heat exchange coil when flowing through the middle of the heat exchange coil, and cannot exchange heat with the heat exchange coil, which reduces the heat exchange efficiency to some extent. CONTENT OF THE INVENTION

[0004] In order to make the cold fluid fully contact with the heat exchange coil, the present application provides a flow distribution structure of a heat-exchangeable refrigerant based on a heat-exchange core.

[0005] The flow distribution structure of a heat-exchangeable refrigerant based on a heat-exchange core provided by the present application adopts the following technical solution:

[0006] The flow distribution structure of a heat-exchangeable refrigerant based on a heat-exchange core comprises:

[0007] The heat exchange coil comprises a main pipe and a coil pipe coiled outside the main pipe, the main pipe and the coil pipe are in communication, and a coiled space is formed in the middle of the coil pipe.

[0008] The first baffle is fixedly arranged on the main pipe and used for blocking the cold fluid from directly flowing into the coiled space, and the first baffle is located at the cold fluid inflow end of the coiled space.

[0009] By adopting the technical scheme, when the cold fluid flows, the first baffle is arranged to effectively block the cold fluid from flowing directly into the coiled space, and force the cold fluid to change the flow path. The cold fluid flows from the side under the action of the first baffle, so that the cold fluid contacts the coil pipe, thereby increasing the contact opportunity of the cold fluid and the coil pipe and improving the heat exchange efficiency.

[0010] Optionally, a second baffle is fixedly arranged on the first baffle, and a flow dividing hole is arranged on the second baffle.

[0011] By adopting the technical scheme, when the cold fluid flows from the second baffle, the flow dividing hole can divide the cold fluid, so that the cold fluid is uniformly dispersed around the coil pipe and can be more fully contacted with the coil pipe, thereby better heat exchange and improving the heat exchange efficiency.

[0012] Optionally, a guide plate is fixedly arranged on the second baffle, and a channel for the cold fluid to flow through is formed between adjacent guide plates, the channel is communicated with the flow dividing hole and is arranged towards the coil pipe.

[0013] By adopting the technical scheme, the guide plate plays a guiding role on the cold fluid, the channel formed by the guide plate is communicated with the flow dividing hole, so that the cold fluid flowing out of the flow dividing hole is guided to the position of the coil pipe, so that the cold fluid and the coil pipe are more fully contacted, thereby further improving the heat exchange efficiency. Meanwhile, the guide plate also plays a role of a reinforcing rib, which can increase the structural strength of the second baffle, so that the second baffle is not easy to deform.

[0014] Optionally, a third baffle is uniformly arranged on the main pipe, and the third baffle is located in the coiled space.

[0015] By adopting the technical scheme, the third baffle further divides and guides the cold fluid in the coiled space. Through the third baffle, the cold fluid can be dispersed, so that the cold fluid flowing in the coiled space contacts the surrounding coil pipe and fully exchanges heat, thereby avoiding the situation of insufficient local heat exchange and improving the heat exchange efficiency.

[0016] Optionally, a fourth baffle is fixedly arranged on the main pipe, and the fourth baffle is located at the cold fluid outlet end of the coiled space.

[0017] By adopting the technical scheme, the fourth baffle can guide and divide the cold fluid again before the cold fluid flows out of the coiled space, so that the cold fluid contacts the coil pipe, helps to reduce the energy loss of the cold fluid, and thereby improves the energy efficiency of the whole system.

[0018] Optionally, a support plate is fixedly arranged on the fourth baffle, the support plate abuts against the coil pipe, and a through hole is arranged on the support plate.

[0019] By adopting the technical scheme, the support plate is arranged below the coil pipe to provide additional support for the coil pipe, thereby improving the stability of the coil pipe in use. Meanwhile, the through hole arranged on the support plate ensures that the cold fluid can smoothly pass through and continue its flow path, thereby ensuring the flow of the cold fluid.

[0020] To sum up, the present application has at least one of the following beneficial technical effects:

[0021] 1. When the cold fluid flows, the first baffle is arranged to effectively block the cold fluid from flowing directly into the coiled space, so as to force the cold fluid to change the flow path. The cold fluid will flow aside under the action of the first baffle, so as to increase the contact opportunity of the cold fluid and the coil pipe and improve the heat exchange efficiency.

[0022] 2. The guide plate plays a guiding role on the cold fluid. The channel formed by the guide plate is connected with the shunt hole, so as to guide the cold fluid flowing out of the shunt hole to the position of the coil pipe, so as to make the cold fluid and the coil pipe more fully contact, thereby further improving the heat exchange efficiency. Meanwhile, the guide plate also plays a role of a reinforcing rib, which can increase the structural strength of the second baffle, so as to make the second baffle not easy to deform.

[0023] 3. The support plate is arranged below the coil pipe to provide additional support for the coil pipe, thereby improving the stability of the coil pipe in use. Meanwhile, the through hole arranged on the support plate ensures that the cold fluid can smoothly pass through and continue its flow path, thereby ensuring the flow of the cold fluid. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0025] Figure 2 is a schematic diagram of the overall structure of the embodiment of the present application from another angle.

[0026] Figure 3 is a plan view of the embodiment of the present application.

[0027] Reference signs: 1, heat exchange coil pipe; 11, main pipe; 12, coil pipe; 21, first baffle; 22, second baffle; 221, shunt hole; 222, guide plate; 23, third baffle; 24, fourth baffle; 241, support plate; 2411, through hole. DETAILED DESCRIPTION

[0028] The technical scheme in the present application will be further described in detail below with reference to the drawings.

[0029] The embodiment of the present application discloses a shunt structure of a to-be-heated refrigerant based on a heat exchange core. Please refer to Figure 1 and Figure 2The shunt structure of the heat exchange core based on the heat exchange medium to be exchanged includes a heat exchange coil 1 and a first baffle 21.

[0030] Wherein, please refer to Figure 1 and Figure 2 The heat exchange coil 1 includes a main pipe 11 and a coil 12 coiled outside the main pipe 11, and the main pipe 11 and the coil 12 are in communication with each other so that the heat fluid can flow therein. The coil 12 is coiled in a serpentine shape to form a coiled space in the middle. Without the shunt structure of the present application, the cold fluid will directly flow through the coiled space, thereby reducing the contact with the coil 12.

[0031] Wherein, please refer to Figure 1 , Figure 2 and Figure 3 The first baffle 21 is fixedly arranged on the main pipe 11. Specifically, the first baffle 21 is a flat plate structure, the plane where the first baffle 21 is located is perpendicular to the axis of the main pipe 11, and the size and shape of the first baffle 21 are determined according to the specific parameters of the main pipe 11 and the coil 12. The first baffle 21 can be firmly installed on the main pipe 11 by welding, bolt connection or other fixing methods. The main function of the first baffle 21 is to block the cold fluid from directly flowing into the coiled space. The first baffle 21 is arranged at the cold fluid inflow end of the coiled space, thereby ensuring that the cold fluid is effectively blocked and shunted before entering the coiled space. By arranging the first baffle 21, the cold fluid is forced to change the flow path before entering the coiled space, so that the cold fluid flows to the coil 12 beside, thereby increasing the contact time and contact area of the cold fluid with the coil 12, and significantly improving the heat exchange efficiency.

[0032] Please refer to Figure 1 The first baffle 21 is fixedly provided with a second baffle 22, and the first baffle 21 and the second baffle 22 are in the same plane. A shunt hole 221 is formed in the second baffle 22, and the shunt hole 221 is arranged towards the coil 12. Specifically, the number and size of the shunt hole 221 can be determined comprehensively according to the actual cold fluid flow, pressure and required heat exchange efficiency and other factors. Through the further blocking and shunting effect of the second baffle 22, the cold fluid is more uniformly guided to each part of the coil 12, thereby further improving the heat exchange efficiency. At the same time, the shunt hole 221 can finely shunt the cold fluid, so that the cold fluid is more uniformly distributed to each part of the coil 12, further improving the heat exchange effect.

[0033] Further, please refer to Figure 1 and Figure 2The second baffle 22 is fixedly provided with a guide plate 222 on the side close to the coil pipe 12. The guide plates 222 are adjacent to each other to form a channel for the flow of the cold fluid, which is connected with the flow dividing hole 221 and faces the coil pipe 12. The guide plate 222 can guide the cold fluid to flow to the heat exchange surface of the coil pipe 12 more accurately, ensure the sufficient contact between the cold fluid and the coil pipe 12, reduce the invalid flow, and further strengthen the heat exchange effect. In addition, the guide plate 222 can also enhance the structural stability of the second baffle 22, thereby ensuring the stability of the second baffle 22.

[0034] Please refer to Figure 3 The main pipe 11 is uniformly provided with the third baffle 23, which is parallel to the first baffle 21 and located in the coiled space. The third baffle 23 can further block and divide the cold fluid in the coiled space, so as to make the flow path of the cold fluid more complex, thereby increasing the contact opportunity and time of the cold fluid with the coil pipe 12 and improving the heat exchange efficiency.

[0035] Please refer to Figure 1 and Figure 2 The main pipe 11 is fixedly provided with the fourth baffle 24, which is parallel to the first baffle 21 and located at the cold fluid outlet end of the coiled space. The fourth baffle 24 can block and divide the cold fluid for the last time when the cold fluid is about to flow out of the coiled space, so as to ensure that the cold fluid has been fully heat exchanged with the coil pipe 12 before flowing out.

[0036] Further, please refer to Figure 2 and Figure 3 The fourth baffle 24 is fixedly provided with a support plate 241. The support plate 241 is located below the coil pipe 12 to provide a certain supporting force for the coil pipe 12, which is helpful to maintain the shape and stability of the coil pipe 12. Meanwhile, the support plate 241 is provided with a through hole 2411, which allows the cold fluid to pass directly on the premise of ensuring the structural strength of the support plate 241, so as to adjust the flow and flow rate of the cold fluid to a certain extent, so that the heat exchange process is more stable and controllable.

[0037] The implementation principle of the embodiment of the present application is that the cold fluid first flows through the first baffle 21 and the second baffle 22, and then is divided to flow out from the channel and contact the coil pipe 12. The cold fluid flows in the coiled space and is affected by the third baffle 23 to contact the coil pipe 12 beside. Finally, the cold fluid contacts the fourth baffle 24 and contacts the coil pipe 12 beside for heat exchange.

[0038] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, and thus: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A flow distribution structure for a refrigerant to be heat-exchanged based on a heat-exchange core, characterized by, The application relates to a heat exchange coil (1) comprising a main pipe (11) and a coil (12) coiled outside the main pipe (11), the main pipe (11) and the coil (12) being communicated, and a coiled space being formed in the middle of the coil (12). A first baffle (21) is fixedly arranged on the main pipe (11) and used for blocking cold fluid from directly flowing into the coiled space, and the first baffle (21) is located at a cold fluid inflow end of the coiled space. A second baffle (22) is fixedly arranged on the first baffle (21), and a shunt hole (221) is formed in the second baffle (22).

2. The heat-exchange core-based split structure of the heat-exchangeable refrigerant according to claim 1, characterized in that: A guide plate (222) is fixedly arranged on the second baffle (22), channels for the cold fluid to flow through are formed between adjacent guide plates (222), and the channels are communicated with the shunt hole (221) and arranged towards the coil (12).

3. The heat-exchange core-based split-flow structure of the heat-exchangeable refrigerant according to claim 2, characterized by: Third baffles (23) are uniformly arranged on the main pipe (11), and the third baffles (23) are located in the coiled space.

4. The heat-exchange core-based sub-flow structure of a heat-exchangeable refrigerant according to claim 1, characterized by: A fourth baffle (24) is fixedly arranged on the main pipe (11), and the fourth baffle (24) is located at a cold fluid outflow end of the coiled space.

5. The heat-exchange core-based flow-dividing structure of a heat-exchangeable refrigerant according to claim 1, characterized by: A supporting plate (241) is fixedly arranged on the fourth baffle (24), the supporting plate (241) abuts against the coil (12), and a through hole (2411) is formed in the supporting plate (241).

6. The heat-exchange core-based sub-flow structure of a heat-exchangeable refrigerant according to claim 5, characterized in that: ​

Images