A variable temperature heat exchanger with adjustable heat exchange area

Abstract

The utility model discloses a variable temperature heat exchanger of adjustable heat exchange area belongs to variable temperature heat exchanger field, and this device includes: fixed bolster, two heat exchange buckets, a plurality of heat exchange pipes, pipe head and pipeline assembly, install two heat exchange buckets on fixed bolster, the through -hole that is opened in pipe head is used for the intercommunication of heat exchange pipe, install the pipeline assembly between two heat exchange buckets, and the pipeline assembly includes tee pipe, control valve, water pump, water guide pipe, two check valve and temperature sensor, and the water outlet of one of heat exchange bucket is communicated with the one end of tee pipe. Compared with traditional variable temperature heat exchanger device of adjustable heat exchange area, when temperature sensor monitors the temperature of fluid too high, through control valve adjustment opening, cooperate tee pipe and guide fluid in one of heat exchange bucket to the inside of another heat exchange bucket, and the flow of fluid in another heat exchange bucket expands heat exchange area, increases heat exchange area, and then improves the efficiency of heat exchange.

Description

Technical Field

[0001] This utility model relates to the field of variable temperature heat exchanger technology, specifically to a variable temperature heat exchanger with adjustable heat exchange area. Background Technology

[0002] In industrial applications, heat exchangers are crucial devices for transferring heat between two or more fluids. With the development of industrial technology, the demands on heat exchangers are no longer limited to fixed heat exchange efficiencies and conditions, but also require them to maintain high efficiency in varying operating environments. However, traditional fixed-structure heat exchangers often cannot adapt to different operating conditions, especially when facing large temperature fluctuations or changes in flow rate requirements, which may lead to inefficiency or increased energy consumption. Summary of the Invention

[0003] The purpose of this invention is to address the problem that existing technologies lack a variable temperature heat exchanger that can automatically adjust the heat exchange area according to actual working conditions, and to provide a variable temperature heat exchanger with an adjustable heat exchange area.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a variable temperature heat exchanger with adjustable heat exchange area, comprising a fixed support, two heat exchange barrels, a plurality of heat exchange tubes, tube heads and pipe assemblies, characterized in that the two heat exchange barrels installed on the fixed support have through holes in the tube heads for communication with the heat exchange tubes. A piping assembly is installed between the two heat exchange tanks. The piping assembly includes a tee pipe, a control valve, a water pump, a water guide pipe, two check valves, and a temperature sensor. One end of the tee pipe is connected to the outlet of one of the heat exchange tanks, and the other end is connected to the inlet of the other heat exchange tank. The inlet of the water pump is connected to the outlet of the other heat exchange tank, and the outlet is connected to one end of the water guide pipe. One end of each of the two check valves is installed at the other end of the tee pipe and the other end of the water guide pipe, respectively, and the other end is connected to one or both ends of the tee pipe (501). The temperature sensor is installed inside the tee pipe (501) through a sealing ring.

[0005] In the above technical solution, the hot fluid is evenly distributed into each heat exchange tube through the tube head to avoid local overheating or undercooling. In conjunction with the heat exchange tank, cold fluid is introduced into the interior to form a temperature difference with the hot fluid, thereby achieving the purpose of cooling. Then, it is discharged after entering the three-way pipe (501) through the check valve. When the temperature sensor in the three-way pipe (501) detects that the temperature of the fluid is too high, the opening of the control valve is adjusted, and the fluid in one heat exchange tank is guided into the other heat exchange tank in conjunction with the three-way pipe. The flow of the fluid in the other heat exchange tank expands the heat exchange area, increases the heat exchange area, and thus improves the efficiency of heat exchange.

[0006] Preferably, the heat exchange tank is fixed to the top of the fixed bracket by a retaining ring.

[0007] In the above technical solution, a retaining ring and a fixing bracket are used to provide a stable support structure for the two heat exchange tanks, tightly connecting the two heat exchange tanks and preventing displacement or shaking.

[0008] Preferably, a plurality of the heat exchange tubes are fixed inside the heat exchange barrel by a tube sheet, and the outer wall of the tube sheet is connected to the inner wall of the heat exchange barrel.

[0009] In the above technical solution, the tube sheet bears the weight of the heat exchange tubes and the fluid pressure during operation, preventing the heat exchange tubes from shifting or shaking.

[0010] Preferably, both ends of the heat exchange tubes are fixedly connected to the through holes in the tube head.

[0011] In the above technical solution, the through hole in the tube head ensures that the fluid can smoothly enter the heat exchange tube, avoiding problems such as leakage or poor flow.

[0012] Preferably, the control valve is an electrically controlled valve, and the control valve is installed inside the three-way pipe.

[0013] In the above technical solution, the opening degree of the control valve is adjusted according to the temperature data monitored by the temperature sensor, and the flow rate of the fluid is precisely controlled.

[0014] Preferably, the water pump is a centrifugal water pump.

[0015] In the above technical solution, the centrifugal water pump generates centrifugal force through impeller rotation, forming a pressure difference, which drives the hot fluid from one heat exchange tank to another. This driving force overcomes the pipeline resistance.

[0016] Preferably, the temperature sensor is a resistance temperature sensor.

[0017] In the above technical solution, the temperature of the fluid in the three-way pipe (501) can be measured quickly and accurately by the resistance temperature sensor, and the heat exchange area of ​​the fluid can be adjusted according to the temperature deviation to improve heat exchange efficiency and reduce energy consumption.

[0018] Preferably, the sealing ring is made of silicone.

[0019] In the above technical solution, the silicone sealing ring has good elasticity and sealing performance, effectively filling the tiny gap between the temperature sensor and the installation part and preventing fluid leakage.

[0020] Compared with the prior art, the beneficial effects of this utility model are: 1. This variable temperature heat exchanger with adjustable heat exchange area distributes hot fluid evenly to the inside of each heat exchange tube through the tube head to avoid local overheating or undercooling. In conjunction with the heat exchange tank, cold fluid is introduced into the inside to form a temperature difference with the hot fluid, thereby achieving the purpose of cooling. Then, it is discharged through the check valve into the three-way pipe (501). When the temperature sensor in the three-way pipe (501) detects that the temperature of the fluid is too high, the opening of the control valve is adjusted. In conjunction with the three-way pipe, the fluid in one heat exchange tank is guided to the inside of the other heat exchange tank. The flow of fluid in the other heat exchange tank expands the heat exchange area and increases the heat exchange area, thereby improving the efficiency of heat exchange. The two heat exchange tanks are provided with a stable support structure by the retaining ring and the fixed bracket, and the two heat exchange tanks are tightly connected to prevent displacement or shaking.

[0021] 2. This variable temperature heat exchanger with adjustable heat exchange area has a tube sheet that bears the weight of the heat exchange tubes and the fluid pressure during operation, preventing displacement or shaking of the heat exchange tubes. Through the through holes in the tube head, it ensures that the fluid can smoothly enter the heat exchange tubes, avoiding leakage or poor flow. Based on the temperature data monitored by the temperature sensor, the opening of the control valve is adjusted to precisely control the fluid flow rate. The centrifugal water pump generates centrifugal force through the rotation of the impeller, forming a pressure difference that pushes the hot fluid from one heat exchange tank to another. This driving force overcomes the pipe resistance.

[0022] 3. This variable temperature heat exchanger with adjustable heat exchange area can quickly and accurately measure the temperature of the fluid in the three-way pipe (501) through the resistance temperature sensor, and adjust the heat exchange area of ​​the fluid according to the temperature deviation to improve heat exchange efficiency and reduce energy consumption. The silicone sealing ring has good elasticity and sealing performance, effectively filling the small gap between the temperature sensor and the installation part to prevent fluid leakage. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall left-side three-dimensional structure of this utility model.

[0024] Figure 2 This is a three-dimensional cross-sectional view of the present invention.

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure inside the heat exchange tank of this utility model.

[0026] Figure 4 This is a three-dimensional structural diagram of the pipe assembly of this utility model.

[0027] Figure 5 This is a three-dimensional structural diagram of the heat exchange tank and fixed support of this utility model.

[0028] In the diagram: 1. Fixed bracket; 2. Heat exchange tank; 3. Heat exchange tube; 4. Tube end; 5. Pipe assembly; 6. Snap ring; 7. Tube sheet; 501. Tee pipe; 502. Control valve; 503. Water pump; 504. Water guide pipe; 505. Check valve; 506. Temperature sensor; 507. Sealing ring. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the 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.

[0030] Please refer to Figures 1 to 5 The variable temperature heat exchanger with adjustable heat exchange area in this embodiment includes a fixed support 1, two heat exchange barrels 2, several heat exchange tubes 3, tube heads 4 and pipe assembly 5. The two heat exchange barrels 2 are installed on the fixed support 1, and the tube heads 4 are provided with through holes for the heat exchange tubes 3 to communicate. A pipe assembly 5 is installed between two heat exchange tanks 2. The pipe assembly 5 includes a three-way pipe 501, a control valve 502, a water pump 503, a water guide pipe 504, two check valves 505, and a temperature sensor 506. One end of the three-way pipe 501 is connected to the outlet of one of the heat exchange tanks 2, and the other end is connected to the inlet of the other heat exchange tank 2. The inlet of the water pump 503 is connected to the outlet of the other heat exchange tank 2, and the outlet is connected to one end of the water guide pipe 504. One end of each of the two check valves 505 is installed at the other end of the three-way pipe 501 and the other end of the water guide pipe 504, and the other end is connected to one of the two ends of the three-way pipe (501). The temperature sensor 506 is installed inside the three-way pipe (501) through a sealing ring 507.

[0031] In the above technical solution, the hot fluid is evenly distributed into each heat exchange tube 3 through the tube head 4 to avoid local overheating or undercooling. In conjunction with the heat exchange tank 2, cold fluid is introduced into the interior to form a temperature difference with the hot fluid, thereby achieving the purpose of cooling. Then, it is discharged after entering the three-way pipe (501) through the check valve 505. When the temperature sensor 506 in the three-way pipe (501) detects that the temperature of the fluid is too high, the opening of the control valve 502 is adjusted. In conjunction with the three-way pipe 501, the fluid in one heat exchange tank 2 is guided into the other heat exchange tank 2. The flow of the fluid in the other heat exchange tank 2 expands the heat exchange area, increases the heat exchange area, and thus improves the efficiency of heat exchange.

[0032] Preferably, the heat exchange tank 2 is fixed to the top of the fixed bracket 1 by a retaining ring 6. In the above technical solution, the retaining ring 6 and the fixed bracket 1 provide a stable support structure for the two heat exchange tanks 2, tightly connecting the two heat exchange tanks 2 and preventing displacement or shaking.

[0033] Preferably, a plurality of heat exchange tubes 3 are fixed inside the heat exchange tank 2 by a tube sheet 7, and the outer wall of the tube sheet 7 is connected to the inner wall of the heat exchange tank 2. In the above technical solution, the tube sheet 7 bears the weight of the heat exchange tubes 3 and the fluid pressure during operation, preventing the heat exchange tubes 3 from shifting or shaking.

[0034] Please refer to Figure 2 , Figure 3 and Figure 4 Several heat exchange tubes 3 are fixedly connected at both ends to through holes in the tube head 4. In the above technical solution, the through holes in the tube head 4 ensure that the fluid can smoothly enter the heat exchange tubes 3, avoiding leakage or poor flow.

[0035] Preferably, the control valve 502 is an electric control valve 502, which is installed inside the three-way pipe 501. In the above technical solution, the opening degree of the control valve 502 is adjusted according to the temperature data monitored by the temperature sensor 506, and the flow rate of the fluid is precisely controlled.

[0036] Preferably, the water pump 503 is a centrifugal water pump 503. In the above technical solution, the centrifugal water pump 503 generates centrifugal force through impeller rotation, forming a pressure difference, which drives the hot fluid from one heat exchange tank 2 to another heat exchange tank 2. This driving force overcomes the pipe resistance.

[0037] Please refer to Figure 2 and Figure 4 The temperature sensor 506 is a resistance temperature sensor 506. In the above technical solution, the resistance temperature sensor 506 can quickly and accurately measure the temperature of the fluid in the three-way pipe (501) and adjust the heat exchange area of ​​the fluid according to the temperature deviation to improve heat exchange efficiency and reduce energy consumption.

[0038] Preferably, the sealing ring 507 is made of silicone. In the above technical solution, the silicone sealing ring 507 has good elasticity and sealing performance, effectively filling the tiny gap between the temperature sensor 506 and the mounting part, and preventing fluid leakage.

[0039] Working principle: Hot fluid is evenly distributed into each heat exchange tube 3 through tube head 4 to avoid local overheating or undercooling. Cold fluid is introduced into the heat exchange tank 2 to create a temperature difference with the hot fluid, achieving cooling. The fluid then exits through check valve 505 into three-way pipe (501). When temperature sensor 506 in three-way pipe (501) detects that the fluid temperature is too high, control valve 502 adjusts the opening, guiding the fluid from one heat exchange tank 2 to the other through three-way pipe 501. The flow of fluid in the other heat exchange tank 2 expands the heat exchange area, increasing the heat exchange efficiency. A retaining ring 6, in conjunction with a fixing bracket 1, provides a stable support structure for the two heat exchange tanks 2, tightly connecting them to prevent displacement or shaking. Tube sheet 7 bears the weight of the heat exchange tubes 3 and the pressure during operation. Fluid pressure is used to prevent displacement or shaking of the heat exchange tube 3. The through hole in the tube head 4 ensures that the fluid can smoothly enter the heat exchange tube 3, avoiding leakage or poor flow. According to the temperature data monitored by the temperature sensor 506, the opening of the control valve 502 is adjusted to accurately control the flow rate of the fluid. The centrifugal pump 503 generates centrifugal force through the rotation of the impeller, forming a pressure difference, which pushes the hot fluid from one heat exchange tank 2 to another heat exchange tank 2. This driving force overcomes the pipe resistance. The temperature sensor 506 can quickly and accurately measure the temperature of the fluid in the three-way pipe (501) and adjust the heat exchange area of ​​the fluid according to the temperature deviation to improve heat exchange efficiency and reduce energy consumption. The silicone sealing ring 507 has good elasticity and sealing performance, effectively filling the small gap between the temperature sensor 506 and the installation part to prevent fluid leakage.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A variable temperature heat exchanger with adjustable heat exchange area, comprising a fixed support (1), two heat exchange tanks (2), a plurality of heat exchange tubes (3), tube heads (4), and pipe assemblies (5), characterized in that, The two heat exchange barrels (2) installed on the fixed bracket (1) have through holes in the tube head (4) for the heat exchange tube (3) to communicate. A piping assembly (5) is installed between the two heat exchange tanks (2). The piping assembly (5) includes a three-way pipe (501), a control valve (502), a water pump (503), a water guide pipe (504), two check valves (505), and a temperature sensor (506). One end of the three-way pipe (501) is connected to the outlet of one of the heat exchange tanks (2), and the other end is connected to the inlet of the other heat exchange tank (2). The inlet of the water pump (503) is connected to the outlet of the other heat exchange tank (2), and the outlet is connected to one end of the water guide pipe (504). One end of each of the two check valves (505) is installed on the other end of the three-way pipe (501) and the other end of the water guide pipe (504), and the other end is connected to one of the two ends of the three-way pipe (501). The temperature sensor (506) is installed inside the three-way pipe (501) through a sealing ring (507).

2. The variable temperature heat exchanger with adjustable heat exchange area according to claim 1, characterized in that, The heat exchange tank (2) is fixed to the top of the fixed bracket (1) by a retaining ring (6).

3. The variable temperature heat exchanger with adjustable heat exchange area according to claim 1, characterized in that, Several heat exchange tubes (3) are fixed inside the heat exchange barrel (2) by tube sheet (7), and the outer wall of tube sheet (7) is connected to the inner wall of heat exchange barrel (2).

4. The variable temperature heat exchanger with adjustable heat exchange area according to claim 1, characterized in that, Both ends of several heat exchange tubes (3) are fixedly connected to the through holes in the tube head (4).

5. The variable temperature heat exchanger with adjustable heat exchange area according to claim 1, characterized in that, The control valve (502) is an electric control valve (502), and the control valve (502) is installed inside the three-way pipe (501).

6. The variable temperature heat exchanger with adjustable heat exchange area according to claim 1, characterized in that, The water pump (503) is a centrifugal water pump (503).

7. The variable temperature heat exchanger with adjustable heat exchange area according to claim 1, characterized in that, The temperature sensor (506) is a resistance temperature sensor (506).

8. The variable temperature heat exchanger with adjustable heat exchange area according to claim 1, characterized in that, The sealing ring (507) is made of silicone.

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