A heat network dewatering cooling device

Abstract

The utility model discloses a kind of heat network drainage cooling devices, including shell, still including the heat exchange component for being equipped with for carrying out heat exchange to heat exchange water and heat network water in the shell inside, the heat exchange component is provided with multiple groups along the length direction of shell, the heat exchange component includes two unit prefabricated boards, two the unit prefabricated board is circular board, the plate surface of two the unit prefabricated board close to each other is fixedly installed with convex ring, the mutual adhesion between the convex ring of two the unit prefabricated board, to make the heat exchange cavity formed in heat exchange component.The heat network drainage cooling device of the utility model carries out heat exchange using the heat exchange cavity of heat exchange component, avoid the form of heat exchange using heat exchange pipe, so that the length of shell can be controlled in certain range Shell does not need to adapt the length of heat exchange pipe, thereby reduce the space occupancy of shell and manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange equipment technology, specifically a hydrophobic cooling device for a heat exchange network. Background Technology

[0002] The heating network water temperature in power plants is relatively high, and the operating pressure is generally low (typically operating pressure is between 100°C and 150°C).

[0003] The operating pressure of condensate is generally lower than 1.0 MPa, while the operating pressure of condensate is generally higher (usually around 3.0 MPa). Therefore, heat exchangers are used to reduce the temperature of the heating network water in order to achieve the purpose of waste heat utilization.

[0004] Traditional heat exchangers are mainly shell and tube heat exchangers, with heat exchange tubes as the heat exchange elements. However, they have low heat transfer coefficients, large footprints, and relatively high costs. In actual use, crossflow is easily formed because the outlet temperature of the hot medium is lower than that of the cold medium. Crossflow makes heat exchange impossible in working conditions with large temperature crossovers. Even if heat exchange is possible, the heat exchangers are long or multiple units are connected in series, resulting in low cost-effectiveness.

[0005] Therefore, there is an urgent need for a heat network hydrophobic cooling device to solve the above problems. Utility Model Content

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat network hydrophobic cooling device, comprising a shell, one end of which is bolted to a cover plate, a first inlet pipe and a first drain pipe connected to the outer peripheral wall of the shell respectively, the outlet end of the first inlet pipe communicating with the interior of the shell for conveying hot water into the shell, the inlet end of the first drain pipe communicating with the interior of the shell for discharging hot water, a second inlet pipe and a second drain pipe provided on the side of the cover plate away from the shell, the second inlet pipe being located below the second drain pipe, and further comprising a heat exchange component provided inside the shell for exchanging heat between the hot water and the heat network water;

[0007] Multiple sets of heat exchange components are arranged along the length of the shell. Each heat exchange component includes two prefabricated unit plates, both of which are circular. A protruding ring is fixedly installed on the adjacent surfaces of the two prefabricated unit plates, and the protruding rings fit together to form a heat exchange cavity within the heat exchange component. Each prefabricated unit plate has a connecting port that connects to the heat exchange cavity. The connecting ports of each heat exchange component are arranged opposite to each other, so that the heat exchange cavities of all heat exchange components are interconnected. The outlet end of the second inlet pipe connects to one of the connecting ports of the heat exchange component, and the inlet end of the second drain pipe connects to the other connecting port of the heat exchange component. The shell is equipped with a stirring component for stirring the hot water, and the first drain pipe is equipped with a control component for intermittently controlling the drainage of the hot water.

[0008] Multiple partition strips are installed on the surfaces of the two adjacent prefabricated unit panels. Each partition strip is long and spaced apart. The partition strips of the two prefabricated unit panels are perpendicular in length, and the partition strips of the two prefabricated unit panels form a "grid" shape in the heat exchange cavity.

[0009] The control component includes a control tube disposed inside a first drain pipe. A first conical sleeve and a second conical sleeve are fixedly connected to opposite ends of the control tube. The ends of the first and second conical sleeves that are far apart from each other are connected to the inner wall of the first drain pipe. A control ball is slidably connected to the second conical sleeve. The first drain pipe is provided with a compression component for squeezing the control ball. The housing is provided with a drive component for driving the control ball.

[0010] The extrusion assembly includes a first mesh plate fixedly connected to the inner wall of a first drain pipe. A plurality of extrusion tubes are fixedly connected to the side of the first mesh plate near the control ball. Each extrusion tube is slidably connected to an extrusion rod. A second mesh plate is fixedly connected to the end of each extrusion rod away from the first mesh plate. The second mesh plate is connected to the control ball. The end of each extrusion rod away from the second mesh plate is located inside the extrusion tube and is fixedly connected to an extrusion plate. A spring is fixedly connected to the side of each extrusion plate away from the extrusion rod. The end of each spring away from the extrusion plate is connected to the bottom wall of the extrusion tube.

[0011] The drive assembly includes a drive rod rotatably connected to the bottom wall of the housing. The side wall of the drive rod is connected to an arc-shaped drive plate via multiple connecting rods. The two opposite ends of the arc-shaped drive plate are beveled. The first drain pipe is slidably connected to a fixed rod, one end of which is connected to a control ball.

[0012] The stirring assembly includes a stirring rod rotatably connected to the housing. Multiple sets of stirring blades are fixedly connected to the side wall of the stirring rod. Each set of stirring blades is located between two adjacent sets of heat exchange components. One end of the stirring rod is connected to a drive rod. A motor is fixedly connected to one side of the cover plate. The output end of the motor is connected to the stirring rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The heat exchange water cooling device of this utility model introduces hot water into the shell through a first inlet pipe, submerging all heat exchange components. Then, hot water is introduced through a second inlet pipe, allowing it to enter the heat exchange chambers of all heat exchange components. The heat of the hot water is transferred from the plate walls of the heat exchange components to the hot water in the shell, thus facilitating heat exchange between the hot water and the hot water, reducing the temperature of the hot water and achieving waste heat utilization. The arrangement of multiple heat exchange components forms multiple heat exchange chambers, increasing the contact area between the hot water and the hot water, thereby improving the heat exchange effect. At the same time, using the heat exchange chambers of the heat exchange components for heat exchange avoids the use of heat exchange tubes, allowing the length of the shell to be controlled within a certain range. The shell does not need to be adapted to the length of the heat exchange tubes, thereby reducing the space occupied by the shell and manufacturing costs.

[0015] 2. The heat exchange network hydrophobic cooling device of this utility model, through the setting of control components, realizes the intermittent discharge of hot water, thereby extending the residence time of the hot water in the shell, allowing it to fully contact the heat exchange components, more fully absorb the heat transferred by the heat exchange network water, increase the final temperature of the hot water, and thus improve the overall waste heat utilization efficiency. At the same time, the intermittent drainage of hot water will cause periodic liquid level fluctuations and flow disturbances in the hot water in the shell. When drainage is stopped, the hot water accumulates in the upper part of the shell, forming a certain pressure. When drainage is started, the water flows out quickly, driving the low-temperature hot water in the lower part of the shell to replenish upwards, forming a convection circulation. This disturbance can break the boundary layer on the surface of the heat exchange components, enhance the turbulence of the hot water, reduce thermal resistance, and make the heat transfer from the heat exchange components to the hot water more efficient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the housing of this utility model;

[0018] Figure 3 This is a schematic diagram of the heat exchange component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the control component of this utility model;

[0020] Figure 5 for Figure 4 A magnified view is shown in section A.

[0021] In the diagram: 101, shell; 102, first water inlet pipe; 103, first drain pipe; 104, cover plate; 105, second water inlet pipe; 106, second drain pipe; 201, unit prefabricated plate; 202, convex ring; 203, heat exchange chamber; 204, connecting port; 205, partition strip; 301, control pipe; 302, first conical sleeve; 303, second conical sleeve; 304, control ball; 401, first mesh plate; 402, extrusion pipe; 403, extrusion rod; 404, second mesh plate; 405, extrusion plate; 406, spring; 501, drive rod; 502, connecting rod; 503, arc-shaped drive plate; 504, angled; 505, fixing rod; 601, stirring rod; 602, stirring blade; 603, motor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Please see Figures 1-5 The diagram shows a heat network drainage and cooling device, including a housing 101. One end of the housing 101 is bolted to a cover plate 104. The outer peripheral wall of the housing 101 is connected to a first water inlet pipe 102 and a first drain pipe 103. The outlet end of the first water inlet pipe 102 is connected to the inside of the housing 101 for conveying hot water into the housing 101. The inlet end of the first drain pipe 103 is connected to the inside of the housing 101 for discharging hot water. A second water inlet pipe 105 and a second drain pipe 106 are provided on the side of the cover plate 104 away from the housing 101. The second water inlet pipe 105 is located below the second drain pipe 106. The device also includes a heat exchange assembly inside the housing 101 for exchanging heat between the hot water and the heat network water.

[0025] Multiple heat exchange components are arranged along the length of the shell 101. Each heat exchange component includes two unit prefabricated plates 201, which are circular plates. A protruding ring 202 is fixedly installed on the adjacent surfaces of the two unit prefabricated plates 201. The protruding rings 202 of the two unit prefabricated plates 201 fit together to form a heat exchange cavity 203 within the heat exchange component. Each surface of the two unit prefabricated plates 201 has a connecting port 204, which connects to the heat exchange cavity 203. The connecting ports 204 of each heat exchange component are arranged opposite each other to allow the heat exchange cavities 203 containing the heat exchange components to communicate with each other. The outlet end of the second water inlet pipe 105 is connected to the heat exchanger. One of the connection ports 204 of the component is connected to the other connection port 204 of the heat exchange component. The shell 101 is provided with a stirring component for stirring the heat exchange water. The first drain pipe 103 is provided with a control component for intermittently controlling the drainage of the heat exchange water. Multiple partition strips 205 are installed on the close-to-each-side surfaces of the two unit prefabricated plates 201. Each partition strip 205 is long and spaced apart. The partition strips 205 of the two unit prefabricated plates 201 are arranged perpendicularly in the length direction. The partition strips 205 of the two unit prefabricated plates 201 make the heat exchange chamber 203 form a "grid".

[0026] It should be noted that: hot water is introduced into the shell 101 through the first inlet pipe 102, submerging the heat exchange components. Then, hot water is introduced through the second inlet pipe 105, entering the heat exchange chamber 203 containing the heat exchange components. The heat of the hot water is transferred from the heat exchange components to the hot water in the shell 101, thus exchanging heat between the hot water and the hot water, reducing the temperature of the hot water and achieving the purpose of waste heat utilization. The arrangement of multiple heat exchange components forms multiple heat exchange chambers 203, increasing the contact area between the hot water and the hot water, thereby improving the heat exchange effect. At the same time, using the heat exchange chambers 203 of the heat exchange components for heat exchange avoids the use of heat exchange tubes, allowing the length of the shell 101 to be controlled within a certain range (the shell 101 does not need to be adapted to the length of the heat exchange tubes), thereby reducing the space occupation and manufacturing cost of the shell 101.

[0027] Please see Figure 4 and Figure 5 The control component shown in the figure includes a control pipe 301 disposed in the first drain pipe 103. A first conical sleeve 302 and a second conical sleeve 303 are fixedly connected to opposite ends of the control pipe 301, respectively. The ends of the first conical sleeve 302 and the second conical sleeve 303 that are far apart from each other are respectively connected to the inner wall of the first drain pipe 103. A control ball 304 is slidably connected to the second conical sleeve 303. The first drain pipe 103 is provided with a pressing component for pressing the control ball 304, and the housing 101 is provided with a driving component for driving the control ball 304.

[0028] It should be noted that by setting the control components, the intermittent discharge of the hot water is achieved, thereby extending the residence time of the hot water in the shell 101, allowing it to fully contact the heat exchange components and absorb the heat transferred from the heating network water more effectively, increasing the final temperature of the hot water and thus improving the overall waste heat utilization efficiency. At the same time, the intermittent drainage of the hot water will cause periodic liquid level fluctuations and flow disturbances in the hot water within the shell 101. When drainage is suspended, the hot water accumulates in the upper part of the shell 101, forming a certain pressure. When drainage is started, the water flows out rapidly, driving the low-temperature hot water in the lower part of the shell 101 to replenish upwards, forming a convection circulation. This disturbance can break the boundary layer on the surface of the heat exchange components, enhance the turbulence of the hot water, reduce thermal resistance, and make the transfer of heat from the heat exchange components to the hot water more efficient.

[0029] Please see Figure 4 and Figure 5 The extrusion assembly shown in the figure includes a first mesh plate 401 fixedly connected to the inner wall of the first drain pipe 103. A plurality of extrusion tubes 402 are fixedly connected to the side of the first mesh plate 401 near the control ball 304. Each extrusion tube 402 is slidably connected to an extrusion rod 403. A second mesh plate 404 is fixedly connected to the end of each extrusion rod 403 away from the first mesh plate 401. The second mesh plate 404 is connected to the control ball 304. The end of each extrusion rod 403 away from the second mesh plate 404 is located inside the extrusion tube 402 and is fixedly connected to an extrusion plate 405. A spring 406 is fixedly connected to the side of each extrusion plate 405 away from the extrusion rod 403. The end of each spring 406 away from the extrusion plate 405 is connected to the bottom wall of the extrusion tube 402.

[0030] It should be noted here that the compression component is designed to guide and reset the movement of the control ball 304.

[0031] Working principle: Hot water is introduced into the shell 101 through the first inlet pipe 102, submerging the heat exchange components. Then, hot water is introduced through the second inlet pipe 105, entering the heat exchange chamber 203 containing the heat exchange components. The heat of the hot water is transferred from the heat exchange components to the hot water in the shell 101, thus exchanging heat between the hot water and the hot water, reducing the temperature of the hot water and achieving the purpose of waste heat utilization. The arrangement of multiple heat exchange components forms multiple heat exchange chambers 203, increasing the contact area between the hot water and the hot water, thereby improving the heat exchange effect. At the same time, using the heat exchange chambers 203 of the heat exchange components for heat exchange avoids the use of heat exchange tubes, allowing the length of the shell 101 to be controlled within a certain range (the shell 101 does not need to be adapted to the length of the heat exchange tubes), thereby reducing the space occupation and manufacturing cost of the shell 101.

[0032] Furthermore, during the heat exchange process, the stirring component is used to stir the hot water to improve the stirring effect of the hot water, forming a vortex flow between the hot water and the heat network water in the heat exchange zone, thereby improving the heat exchange effect between the heat network water and the hot water.

[0033] Simultaneously, during the stirring process of the heat exchanger, the drive component reciprocates the control ball 304. When the control ball 304 moves away from the second conical sleeve 303, the heat exchanger inside the housing 101 flows out through the gap between the control ball 304 and the second conical sleeve 303. When the control ball 304, under the squeezing action of the squeezing component, abuts against the inner wall of the second conical sleeve 303, the heat exchanger inside the housing 101 cannot flow out through the first drain pipe 103. Thus, the reciprocating movement of the control ball 304 achieves intermittent discharge of the heat exchanger, thereby extending the residence time of the heat exchanger inside the housing 101, allowing it to fully contact the heat exchanger, more fully absorb the heat transferred by the heat network water, and improve the heat exchange efficiency. The final temperature of the hot water improves the overall waste heat utilization efficiency. At the same time, the intermittent drainage of the hot water will cause periodic liquid level fluctuations and flow disturbances in the hot water inside the shell 101. When the drainage is stopped, the hot water accumulates in the upper part of the shell 101, forming a certain pressure. When the drainage is started, the water flows out quickly, driving the low-temperature hot water in the lower part of the shell 101 to replenish upwards, forming a convection circulation. This disturbance can break the boundary layer on the surface of the heat exchange component, enhance the turbulence of the hot water, reduce thermal resistance, and make the transfer of heat from the heat exchange component to the hot water more efficient.

[0034] Example 2

[0035] Please see Figure 4 This embodiment further illustrates Example 1. The driving assembly shown in the figure includes a driving rod 501 rotatably connected to the bottom wall of the housing 101. An arc-shaped driving plate 503 is connected to the side wall of the driving rod 501 through a plurality of connecting rods 502. The two opposite ends of the arc-shaped driving plate 503 are respectively chamfered 504. A fixed rod 505 is slidably connected to the first drain pipe 103. One end of the fixed rod 505 is connected to the control ball 304.

[0036] It should be noted here that: through the setting of the drive component, during the rotation of the stirring component, the drive rod 501 will be driven to rotate synchronously, and then the connecting rod 502 will drive the arc drive plate 503 to rotate. During the rotation of the arc drive plate 503, when the arc drive plate 503 abuts against the fixed rod 505, the control ball 304 at one end of the fixed rod 505 will be pushed away from the second conical sleeve 303 under the pushing force. Therefore, as the arc drive plate 503 continues to rotate, it will reciprocate to push the control ball 304.

[0037] Example 3

[0038] Please see Figure 2 This embodiment is a further description of other embodiments. The stirring assembly shown in the figure includes a stirring rod 601 rotatably connected to the housing 101. Multiple sets of stirring blades 602 are fixedly connected to the side wall of the stirring rod 601. Each set of stirring blades 602 is located between two adjacent sets of heat exchange components. One end of the stirring rod 601 is connected to the drive rod 501. A motor 603 is fixedly connected to one side of the cover plate 104. The output end of the motor 603 is connected to the stirring rod 601.

[0039] It should be noted that by setting up the stirring assembly, the motor 603 drives multiple sets of stirring blades 602 on the side wall of the stirring rod 601 to rotate, thereby improving the stirring effect on the hot water, forming a swirling flow between the hot water and the heat network water in the heat exchange zone, and thus improving the heat exchange effect between the heat network water and the hot water.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A hydrophobic cooling device for a thermal network, comprising: A housing (101) is provided with a cover plate (104) bolted to one end. A first water inlet pipe (102) and a first drain pipe (103) are connected to the outer peripheral wall of the housing (101). The outlet end of the first water inlet pipe (102) is connected to the inside of the housing (101) for conveying hot water to the inside of the housing (101). The inlet end of the first drain pipe (103) is connected to the inside of the housing (101) for discharging hot water. A second water inlet pipe (105) and a second drain pipe (106) are provided on the side of the cover plate (104) away from the housing (101). The second water inlet pipe (105) is located below the second drain pipe (106). Its characteristic is that it further includes: The housing (101) is equipped with a heat exchange component for exchanging heat between hot water and heating network water; Multiple sets of heat exchange components are arranged along the length of the shell (101). Each heat exchange component includes two unit prefabricated plates (201), both of which are circular plates. A protruding ring (202) is fixedly installed on the adjacent surfaces of the two unit prefabricated plates (201). The protruding rings (202) of the two unit prefabricated plates (201) fit together to form a heat exchange cavity (203) within the heat exchange component. A communication port (204) is provided on the surface of each of the two unit prefabricated plates (201). The heat exchange chambers (203) are connected to each other, and the communication ports (204) of each heat exchange component are arranged opposite to each other so that the heat exchange chambers (203) of all heat exchange components are interconnected. The outlet end of the second water inlet pipe (105) is connected to one of the communication ports (204) of the heat exchange component, and the inlet end of the second drain pipe (106) is connected to the other communication port (204) of the heat exchange component. The housing (101) is provided with a stirring component for stirring the heat exchange water, and the first drain pipe (103) is provided with a control component for intermittently controlling the drainage of the heat exchange water.

2. The hydrophobic cooling device for a heat exchange network according to claim 1, characterized in that: Multiple partition strips (205) are installed on the surfaces of the two adjacent prefabricated unit panels (201). Each partition strip (205) is long and spaced apart. The partition strips (205) of the two prefabricated unit panels (201) are arranged perpendicularly in the length direction. The partition strips (205) of the two prefabricated unit panels (201) make the heat exchange cavity (203) form a "grid".

3. The hydrophobic cooling device for a heat exchange network according to claim 2, characterized in that: The control assembly includes a control tube (301) disposed within a first drain pipe (103). A first conical sleeve (302) and a second conical sleeve (303) are fixedly connected to opposite ends of the control tube (301). The ends of the first conical sleeve (302) and the second conical sleeve (303) that are far apart from each other are respectively connected to the inner wall of the first drain pipe (103). A control ball (304) is slidably connected to the second conical sleeve (303). The first drain pipe (103) is provided with a compression assembly for squeezing the control ball (304). The housing (101) is provided with a drive assembly for driving the control ball (304).

4. The hydrophobic cooling device for a heat exchange network according to claim 3, characterized in that: The extrusion assembly includes a first mesh plate (401) fixedly connected to the inner wall of the first drain pipe (103). A plurality of extrusion tubes (402) are fixedly connected to the side of the first mesh plate (401) near the control ball (304). Each extrusion tube (402) is slidably connected to an extrusion rod (403). A second mesh plate (404) is fixedly connected to the end of each extrusion rod (403) away from the first mesh plate (401). The second mesh plate (404) is connected to the control ball (304). The end of each extrusion rod (403) away from the second mesh plate (404) is located inside the extrusion tube (402) and is fixedly connected to an extrusion plate (405). A spring (406) is fixedly connected to the side of each extrusion plate (405) away from the extrusion rod (403). The end of each spring (406) away from the extrusion plate (405) is connected to the bottom wall of the extrusion tube (402).

5. A hydrophobic cooling device for a thermal network according to claim 4, characterized in that: The drive assembly includes a drive rod (501) rotatably connected to the bottom wall of the housing (101). The side wall of the drive rod (501) is connected to an arc-shaped drive plate (503) via multiple connecting rods (502). The two opposite ends of the arc-shaped drive plate (503) are respectively chamfered (504). The first drain pipe (103) is slidably connected to a fixing rod (505). One end of the fixing rod (505) is connected to a control ball (304).

6. A hydrophobic cooling device for a heat exchange network according to claim 5, characterized in that: The stirring assembly includes a stirring rod (601) rotatably connected to the housing (101). Multiple sets of stirring blades (602) are fixedly connected to the side wall of the stirring rod (601). Each set of stirring blades (602) is located between two adjacent sets of heat exchange components. One end of the stirring rod (601) is connected to a drive rod (501). A motor (603) is fixedly connected to one side of the cover plate (104). The output end of the motor (603) is connected to the stirring rod (601).

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