A plate heat exchanger with built-in guide vanes

Abstract

The utility model provides a kind of plate heat exchanger with built-in guide vane, it is related to heat exchanger technical field, and it includes: first vertical plate, the surface lower position of first vertical plate is equipped with two first connecting holes, and first vertical plate upper middle position is equipped with a first connecting hole, and the surface left and right sides of first vertical plate are respectively equipped with a group of first through hole.The utility model discloses, the guide plate on the surface of middle plate can adopt copper material, copper material has good thermal conductivity, so it can improve heat exchange speed, guide plate is inclined structure, can let medium more smoothly and fully flow in corresponding channel, to lay the foundation for efficient heat exchange, lack of reasonable guidance in the flow trajectory of medium inside heat exchanger is solved, prone to local flow rate too fast or too slow, flow uneven etc., and, along with long time operation and frequent temperature change, it is prone to looseness, displacement etc. between the components of conventional plate heat exchanger.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and in particular to a plate heat exchanger with built-in guide vanes. Background Technology

[0002] Heat exchange is a crucial operational step in many industrial production processes and daily life scenarios such as heating and cooling. For example, in the chemical industry, many chemical reactions need to be carried out under specific temperature conditions, and heat exchangers are often used to regulate the temperature of materials to ensure the smooth progress of the reaction. In centralized heating systems, heat exchangers also play an indispensable role in transferring the heat from the high-temperature hot water generated by the thermal power plant to the circulating water at the user end to achieve effective indoor heating.

[0003] However, while traditional plate heat exchangers have met some heat exchange requirements to a certain extent, they still have some shortcomings: On the one hand, the medium flow guidance effect inside the heat exchanger is often not ideal. The flow trajectory of the medium inside the heat exchanger lacks reasonable guidance, which can easily lead to local flow velocities that are too fast or too slow, or uneven flow. This makes it impossible for the medium to make sufficient contact with the heat exchange plate, thereby affecting the efficiency of heat exchange and failing to meet higher heat exchange performance requirements.

[0004] On the other hand, in terms of structural stability, with long-term operation and frequent temperature changes, the components of traditional plate heat exchangers are prone to loosening and displacement. This not only damages their sealing performance and causes media leakage, but also further affects the stability and continuity of heat exchange, increasing maintenance costs and equipment failure risks. Utility Model Content

[0005] This utility model relates to a plate heat exchanger with built-in guide vanes, which solves the problems of the lack of reasonable guidance for the flow trajectory of the medium inside the heat exchanger, which easily leads to local flow velocity being too fast or too slow, uneven flow, etc., and the problems of loosening and displacement between the components of traditional plate heat exchangers with long-term operation and frequent temperature changes.

[0006] This utility model provides a plate heat exchanger with built-in guide vanes, specifically including: a first vertical plate; Two first connecting holes are provided on the lower part of the surface of the first upright plate, one first connecting hole is provided on the middle part of the upper part of the first upright plate, a set of first through holes are provided on the left and right sides of the surface of the first upright plate, and four connecting pipes are provided on the surface of the first upright plate. The second vertical plate has a through-hole at the top of its surface. Side baffle, the main body of the side baffle is a rectangular plate structure, and the surface of the side baffle is provided with two sets of second through holes; The limiting rods are provided in three parts, and a connecting screw is installed at each of the left and right ends of the limiting rods; The intermediate plate is located between the first vertical plate and the side baffle, and the main body of the intermediate plate is a rectangular plate structure. A locking screw, the front end of which passes through a first through hole on the surface of the first upright plate and a second through hole on the surface of the side baffle, and a nut is connected to the surface of the locking screw.

[0007] Furthermore, a rubber pad frame is installed at each of the front and rear ends of the intermediate plate, four through pipes are installed on the surface of the intermediate plate, a limiting plate is installed at the middle position of the upper end face of the intermediate plate, two limiting plates are installed on the lower end face of the intermediate plate, and grooves are opened on the outer end face of the limiting plates.

[0008] Furthermore, the surface of the intermediate plate is equipped with an inclined guide plate, and the surface of the guide plate has two flow channels with an arc-shaped structure.

[0009] Furthermore, the connecting screw at the left end of the limiting rod is engaged in the first connecting hole on the surface of the first upright plate, and the connecting screw at the right end of the limiting rod is engaged in the second connecting hole on the surface of the second upright plate.

[0010] Furthermore, the limiting rod has a cylindrical structure, with the upper limiting rod fitting into the groove on the surface of the upper limiting plate, and the lower limiting rod fitting into the groove on the surface of the limiting plate.

[0011] Furthermore, a first pad is welded to the lower end face of the first upright plate, and a round hole is formed on the surface of the first pad. A second pad is fixedly installed on the lower end face of the second upright plate, and a round hole is formed on the surface of the second pad.

[0012] This utility model provides a plate heat exchanger with built-in guide vanes, which has the following beneficial effects: 1. The intermediate plate is located between the first vertical plate and the side baffle. The rubber gasket frames installed at the front and rear ends of the intermediate plate play a role in sealing and buffering, preventing medium leakage and reducing adverse effects between components caused by factors such as thermal expansion and contraction. The inclined guide plate installed on the surface of the intermediate plate guides the flow of the medium.

[0013] 2. The guide plates on the surface of the intermediate plate can be made of copper. Copper has good thermal conductivity, which can improve the heat exchange rate. The guide plates have an inclined structure, which allows the medium to flow more smoothly and fully in the corresponding channels, thus laying the foundation for efficient heat exchange.

[0014] 3. The upper limiting rod fits into the groove on the limiting plate surface at the middle position of the upper end of the intermediate plate, and the lower end fits into the groove on the limiting plate surface at the lower end of the intermediate plate. This limits the intermediate plate in the longitudinal direction, ensuring that the intermediate plate is stable in position during heat exchange and will not shift, so that heat exchange can continue stably. In addition, the front end of the locking screw passes through the first through hole on the surface of the first vertical plate and the second through hole on the surface of the side baffle, and is tightened with a nut, which can secure multiple intermediate plates, further reinforcing the structure of the entire heat exchanger from the side, making the components tightly connected and maintaining the stability of the overall structure. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0017] In the attached diagram: Figure 1 A schematic diagram of the overall device structure of this utility model is shown; Figure 2 An exploded view of the overall device of this utility model is shown; Figure 3 A schematic diagram of the intermediate plate structure of this utility model is shown; Figure 4 A cross-sectional view of the first vertical plate of this utility model is shown; Figure 5 A schematic diagram of the connection structure between the intermediate plate and the guide plate of this utility model is shown; Figure 6 The diagram shows the structure of the first upright plate, the side baffle, and the second upright plate of this utility model.

[0018] List of reference numerals in the attached diagram: 1. First upright plate; 101. First pad plate; 102. First through hole; 103. First connecting hole; 104. Connecting pipe; 2. Second upright plate; 201. Second pad plate; 202. Second connecting hole; 3. Side baffle; 301. Second through hole; 4. Limiting rod; 401. Connecting screw; 5. Intermediate plate; 501. Rubber pad frame; 502. Limiting plate; 503. Through pipe; 6. Guide plate; 601. Drainage groove; 7. Locking screw. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example 1: Please refer to Figures 1 to 6 : This utility model proposes a plate heat exchanger with built-in guide vanes, including: a first vertical plate 1; Two first connecting holes 103 are opened at the lower part of the surface of the first upright plate 1, and one first connecting hole 103 is opened at the middle of the upper part of the first upright plate 1. A set of first through holes 102 are opened on the left and right sides of the surface of the first upright plate 1. Four connecting pipes 104 are opened on the surface of the first upright plate 1. The two connecting pipes 104 in front of the first upright plate 1 are hot water inlet pipe and hot water outlet pipe, and the two connecting pipes 104 at the rear of the first upright plate 1 are cold water inlet pipe and cold water outlet pipe. The second vertical plate 2 has a through-hole 202 at the top of its surface. Side baffle 3, the main body of side baffle 3 is a rectangular plate structure, and two sets of second through holes 301 are opened on the surface of side baffle 3; There are three limit rods 4, and a connecting screw 401 is installed at each of the left and right ends of the limit rod 4. The intermediate plate 5 is located between the first vertical plate 1 and the side baffle 3. The main body of the intermediate plate 5 is a rectangular plate structure. The locking screw 7 has its front end passing through the first through hole 102 on the surface of the first vertical plate 1 and the second through hole 301 on the surface of the side baffle 3. A nut is connected to the surface of the locking screw 7.

[0021] The intermediate plate 5 has a rubber gasket frame 501 installed at both its front and rear ends. Four through pipes 503 are installed on the surface of the intermediate plate 5. A limiting plate 502 is installed at the middle position of the upper end face of the intermediate plate 5. Two limiting plates 502 are installed on the lower end face of the intermediate plate 5. The outer end face of the limiting plate 502 has a groove. In use, the rubber gasket frame 501 is installed on the surface of the intermediate plate 5. When multiple intermediate plates 5 are joined together, the rubber gasket frame 501 fits together, which can improve the sealing performance.

[0022] The intermediate plate 5 is equipped with an inclined guide plate 6. The guide plate 6 has two flow channels 601 on its surface. The flow channels 601 are arc-shaped. In use, the arc-shaped flow channels 601 on the guide plate 6 further optimize the flow trajectory of the medium, so that the medium can flow more smoothly and fully in the corresponding channels, thus laying the foundation for efficient heat exchange.

[0023] The connecting screw 401 at the left end of the limiting rod 4 is engaged in the first connecting hole 103 on the surface of the first vertical plate 1, and the connecting screw 401 at the right end of the limiting rod 4 is engaged in the second connecting hole 202 on the surface of the second vertical plate 2. The limiting rod 4 is a cylindrical structure. The upper end of the limiting rod 4 fits into the groove on the surface of the upper limiting plate 502, and the lower end of the limiting rod 4 fits into the groove on the surface of the limiting plate 502. As a cylindrical structure, the upper end of the limiting rod 4 fits into the groove on the surface of the limiting plate 502 at the middle position of the upper end face of the intermediate plate 5, and the lower end fits into the groove on the surface of the limiting plate 502 on the lower end face of the intermediate plate 5. In this way, the intermediate plate 5 is limited in the longitudinal direction.

[0024] The first upright plate 1 is welded to the lower end face of the first upright plate 1, and the surface of the first upright plate 101 is provided with a round hole. The lower end face of the second upright plate 2 is fixedly installed with a second upright plate 201, and the surface of the second upright plate 201 is provided with a round hole. After the worker passes the fixing nail through the round hole on the surface of the first upright plate 101 and the second upright plate 201, the first upright plate 1 and the second upright plate 2 can be fixed.

[0025] In Example 2, based on Example 1, a rubber gasket frame 501 is installed on the surface of the intermediate plate 5. When multiple intermediate plates 5 are joined together, the rubber gasket frames 501 fit together, which can improve the sealing performance. The guide plate 6 on the surface of the intermediate plate 5 can be made of copper. Copper has good thermal conductivity, which can improve the heat exchange rate.

[0026] The working principle of this embodiment: In this invention, the two media involved in the heat exchange, hot water and cold water, enter and exit the heat exchanger through specific connecting pipes 104 on the first vertical plate 1, respectively. Two connecting pipes 104 located in front of the first vertical plate 1 serve as hot water inlet and outlet pipes, respectively. Hot water enters the heat exchanger through corresponding channels to participate in heat exchange, and then flows out through the hot water outlet pipe after completing the heat exchange. Two connecting pipes 104 located behind the first vertical plate 1 act as cold water inlet and outlet pipes. Cold water enters through the cold water inlet pipe, exchanges heat with the hot water inside the heat exchanger, and then exits through the cold water outlet pipe. The intermediate plate 5 is located between the first vertical plate 1 and the side baffle 3. Rubber gasket frames 501 installed at both ends of the intermediate plate 5 serve as a seal and... The buffering mechanism prevents media leakage and reduces adverse effects between components caused by thermal expansion and contraction. The inclined guide plate 6 mounted on the surface of the intermediate plate 5 guides the flow of the media. When hot water enters from the hot water inlet pipe, the guide plate 6 guides the hot water to flow in a specific direction, ensuring even distribution on one side of the intermediate plate 5 and increasing the contact area with the plate. Similarly, when cold water enters from the cold water inlet pipe, it flows orderly on the other side of the intermediate plate 5 under the guidance of the guide plate 6. The arc-shaped drainage groove 601 on the guide plate 6 further optimizes the flow trajectory of the media, allowing it to flow more smoothly and fully within the corresponding channels, thus laying the foundation for efficient heat exchange and limiting the flow. A connecting screw 401 is installed at each of the left and right ends of the rod 4. The left end is engaged in the first connecting hole 103 of the first vertical plate 1, and the right end is engaged in the second connecting hole 202 of the second vertical plate 2, thus achieving the positioning of the overall structure in the lateral direction. At the same time, the limiting rod 4, as a cylindrical structure, has its upper end fitted with the groove on the surface of the limiting plate 502 at the middle position of the upper end face of the intermediate plate 5, and its lower end fitted with the groove on the surface of the limiting plate 502 on the lower end face of the intermediate plate 5. This limits the intermediate plate 5 in the longitudinal direction, ensuring that the intermediate plate 5 is stable in position during heat exchange and will not shift, so that heat exchange can continue stably. In addition, the front end of the locking screw 7 passes through the first vertical plate. The first through hole 102 on the surface of the 1st plate and the second through hole 301 on the surface of the side baffle 3 are tightened with nuts to secure multiple intermediate plates 5. This further strengthens the structure of the entire heat exchanger from the side, ensuring a tight connection between the components, maintaining the stability of the overall structure, and preventing components from loosening due to factors such as pressure generated by the flow of the medium, which would affect the heat exchange effect. Under the synergistic effect of the above structure, hot water and cold water flow along the path guided by the guide plate 6 on both sides of the intermediate plate 5. Due to the temperature difference, heat is transferred from the high-temperature hot water side to the low-temperature cold water side through the intermediate plate 5, achieving heat exchange and thus regulating the water temperature to meet the corresponding usage requirements.

Claims

1. A plate heat exchanger with built-in guide vanes, characterized in that, include: First upright plate (1), with two first connecting holes (103) at the lower part of the surface of the first upright plate (1), one first connecting hole (103) at the middle of the upper part of the first upright plate (1), a set of first through holes (102) on the left and right sides of the surface of the first upright plate (1), and four connecting pipes (104) on the surface of the first upright plate (1); Second upright plate (2), with a through second connecting hole (202) at the upper part of the surface of the second upright plate (2); Side baffle (3), the main body of the side baffle (3) is a rectangular plate structure, the side baffle (3) has two sets of second through holes (301) on its surface; a limiting rod (4), three of which are provided, and a connecting screw (401) is installed at each of the left and right ends of the limiting rod (4); an intermediate plate (5), which is located between the first upright plate (1) and the side baffle (3), and the main body of the intermediate plate (5) is a rectangular plate structure; a locking screw (7), the front end of which passes through the first through hole (102) on the surface of the first upright plate (1) and the second through hole (301) on the surface of the side baffle (3), and a nut is connected to the surface of the locking screw (7).

2. A plate heat exchanger with built-in guide vanes according to claim 1, characterized in that, A rubber pad frame (501) is installed at the front and rear ends of the intermediate plate (5). Four through pipes (503) are installed on the surface of the intermediate plate (5). A limiting plate (502) is installed at the middle position of the upper end face of the intermediate plate (5). Two limiting plates (502) are installed on the lower end face of the intermediate plate (5). The outer end face of the limiting plate (502) is provided with a groove.

3. A plate heat exchanger with built-in guide vanes according to claim 1, characterized in that, The surface of the intermediate plate (5) is equipped with an inclined guide plate (6), and the surface of the guide plate (6) has two flow channels (601), which are arc-shaped.

4. A plate heat exchanger with built-in guide vanes according to claim 1, characterized in that, The connecting screw (401) at the left end of the limiting rod (4) is engaged in the first connecting hole (103) on the surface of the first upright plate (1), and the connecting screw (401) at the right end of the limiting rod (4) is engaged in the second connecting hole (202) on the surface of the second upright plate (2).

5. A plate heat exchanger with built-in guide vanes according to claim 1, characterized in that, The limiting rod (4) is a cylindrical structure. The upper limiting rod (4) fits into the groove on the surface of the upper limiting plate (502), and the lower limiting rod (4) fits into the groove on the surface of the limiting plate (502).

6. A plate heat exchanger with built-in guide vanes according to claim 1, characterized in that, The lower end face of the first upright plate (1) is welded with a first pad (101), and the surface of the first pad (101) is provided with a round hole. The lower end face of the second upright plate (2) is fixedly installed with a second pad (201), and the surface of the second pad (201) is provided with a round hole.

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