A high-temperature heat conducting oil circulating system pressure fluctuation buffer device

Abstract

The utility model relates to the technical field of heat conducting oil system, especially, it relates to a kind of high-temperature heat conducting oil circulation system pressure fluctuation buffer device, when using, heat conducting oil is transported by pump body, heat conducting oil is transported to gas-liquid separator assembly by return pipe to realize the separation of heat conducting oil and gas, liquid heat conducting oil is transported to boiler by pump front pipe and is heated, gas of gas-liquid separator assembly is sent to cooling assembly and is stored in expansion tank after cooling, realize gas-liquid separation by gas-liquid separator assembly, avoid gas to cause whole system to fluctuate greatly, improve security;Including return pipe, pump front pipe and expansion tank, it also includes gas-liquid separator assembly and cooling assembly, return pipe output end is communicated with the liquid inlet end of gas-liquid separator assembly, the liquid outlet end of gas-liquid separator assembly is communicated with pump front pipe input end, the gas outlet end of gas-liquid separator assembly is communicated with cooling assembly gas inlet end, cooling assembly gas inlet and outlet end is communicated with expansion tank input end.

Description

Technical Field

[0001] This utility model relates to the technical field of heat transfer oil systems, and in particular to a pressure fluctuation buffer device for a high-temperature heat transfer oil circulation system. Background Technology

[0002] The thermal oil system mainly includes components such as a boiler, circulating pump, heat-using unit, expansion tank, low-level tank, and filter. It uses the circulating pump to force the thermal oil to circulate in the liquid phase, transferring heat to the heat-using unit. Then, it returns to the boiler through the circulating pump for heating. The continuous heat transfer is achieved through pipeline circulation, thus achieving the purpose of heating objects.

[0003] In the prior art, patent document CN209601277U discloses an expansion buffer device and a heat transfer oil system, including: a tank body with an oil inlet pipe for injecting a heat transfer medium into the tank body; a buffer section including a replenishing oil pipe and an overflow pipe, one end of the overflow pipe being connected to an oil storage tank and the other end extending into the tank body, one end of the replenishing oil pipe being connected to a heat transfer oil device and the other end passing through the bottom of the tank body and extending towards the outlet of the overflow pipe, the replenishing oil pipe having a drain hole located at the connection point between the replenishing oil pipe and the tank body, and inside the tank body. This utility model is mainly used for heat transfer.

[0004] During use, it was found that the above-mentioned device was not very effective at separating the gas generated by the heat transfer oil at high temperatures. The generation of gas caused the system pressure to rise, and the safety needs to be further improved. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a pressure fluctuation buffer device for a high-temperature heat transfer oil circulation system.

[0006] This utility model discloses a pressure fluctuation buffer device for a high-temperature heat transfer oil circulation system, comprising a return pipe, a pump inlet pipe, and an expansion tank, as well as a gas-liquid separator assembly and a cooling assembly. The output end of the return pipe is connected to the liquid inlet of the gas-liquid separator assembly, the liquid outlet of the gas-liquid separator assembly is connected to the input end of the pump inlet pipe, the gas outlet of the gas-liquid separator assembly is connected to the gas inlet of the cooling assembly, and the gas inlet and outlet of the cooling assembly are connected to the input end of the expansion tank. In use, the heat transfer oil is transported by the pump body and then transported to the gas-liquid separator assembly through the return pipe to achieve separation of the heat transfer oil and gas. The liquid heat transfer oil is transported to the boiler for heating through the pump inlet pipe, and the gas from the gas-liquid separator assembly is transported to the cooling assembly for cooling and then enters the expansion tank for storage. The gas-liquid separation achieved by the gas-liquid separator assembly avoids large fluctuations in the overall system caused by gas, thus improving safety.

[0007] Preferably, the gas-liquid separator assembly includes a shell, an inlet pipe, an outlet pipe, an outlet pipe, spiral blades, a cover plate, a sealing plate, and a circular tube. A sealing plate is fixedly installed inside the shell, and a cover plate is installed at the top of the shell. The cover plate and the sealing plate cooperate to divide the interior of the shell into an upper chamber and a lower chamber. The circular tube passes through the sealing plate and is fixedly connected to it. The upper and lower chambers are connected through the circular tube. An inlet pipe is installed on the shell, communicating with the lower chamber. The output end of the reflux pipe is connected to the input end of the inlet pipe, the input end of the outlet pipe is connected to the lower chamber, and the outlet pipe is connected to the upper chamber. The outer side of the circular tube... A spiral blade is installed between the wall and the inner wall of the shell. The spiral blade is in the lower chamber and forms a spiral guide channel with the sealing plate and the inner wall of the shell. The heat transfer oil and gas enter the lower chamber through the return pipe and the liquid inlet pipe and are transported in the spiral guide channel. Under the centrifugal force, the heat transfer oil gathers at the edge of the guide channel and enters the bottom of the lower chamber of the shell. It returns to the heat transfer oil boiler for heating through the pump front pipe. After the gas is separated in the guide channel, it is transported to the upper chamber through the circular pipe and to the cooling component through the gas outlet pipe, thereby improving the gas-liquid separation efficiency.

[0008] Preferably, the cooling assembly includes a heat exchanger, a fixed base, a first gas supply pipe, a second gas supply pipe, a check valve, a water inlet pipe, and a water outlet pipe. The fixed base is provided at the bottom of the heat exchanger. The outlet end of the gas supply pipe is connected to the inlet end of the first gas supply pipe, the outlet end of the first gas supply pipe is connected to the gas inlet end of the heat exchanger, the outlet end of the heat exchanger is connected to the inlet end of the second gas supply pipe, and the outlet end of the second gas supply pipe is connected to the expansion tank. A check valve is installed on the second gas supply pipe. A water inlet pipe is provided at the water inlet end of the heat exchanger, and a water outlet pipe is provided at the water outlet end of the heat exchanger. The separated gas enters the return pipe through the first gas supply pipe. During use, cooling water enters the heat exchanger through the water inlet pipe to cool the gas inside the return pipe. The cooled gas is then transported to the expansion tank through the second gas supply pipe for temporary storage, thereby buffering the system pressure.

[0009] Preferably, the expansion tank also includes an exhaust pipe and a safety valve. An exhaust pipe is provided at the top of the expansion tank, and a safety valve is provided at the output end of the exhaust pipe. When the internal pressure of the expansion tank increases sharply and exceeds the set pressure value of the safety valve, the safety valve will automatically open, thereby allowing the expansion tank to perform pressure relief operation through the exhaust pipe and the safety valve, thus improving safety.

[0010] Preferably, it also includes a refueling pipe, which is provided between the expansion tank and the return pipe; the heat transfer oil inside the expansion tank is injected into the return pipe through the refueling pipe for use, improving convenience.

[0011] Preferably, it also includes a valve, which is installed on the refueling pipe; when refueling is not required, the operator closes the valve, thereby physically isolating the expansion tank from the return pipe and improving convenience.

[0012] Preferably, it also includes a lifting ring, with a lifting ring installed at the top of the cover plate; workers use lifting tools to hook the cover plate to lift the shell, improving convenience.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, the heat transfer oil is transported through the pump body, and the heat transfer oil is transported to the gas-liquid separator assembly through the return pipe to achieve the separation of heat transfer oil and gas. The liquid heat transfer oil is transported to the boiler for heating through the pump front pipe. The gas in the gas-liquid separator assembly is transported to the cooling assembly for cooling and then enters the expansion tank for storage. The gas-liquid separation is achieved through the gas-liquid separator assembly, avoiding large fluctuations in the overall system caused by gas and improving safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model; Figure 2 This is an exploded structural diagram of the present invention; Figure 3 This is an enlarged structural diagram of structures such as safety valves and expansion tanks; Figure 4 This is an enlarged structural diagram of structures such as heat exchangers and check valves; Figure 5 It is an enlarged structural diagram of the helical blades and shell.

[0015] The following are labels in the attached diagram: 1. Return pipe; 2. Pump inlet pipe; 3. Expansion tank; 4. Shell; 5. Liquid inlet pipe; 6. Liquid outlet pipe; 7. Gas outlet pipe; 8. Spiral blade; 9. Cover plate; 10. Heat exchanger; 11. Fixed base; 12. Gas supply pipe No. 1; 13. Gas supply pipe No. 2; 14. Check valve; 15. Water inlet pipe; 16. Water outlet pipe; 17. Exhaust pipe; 18. Safety valve; 19. Oil filling pipe; 20. Valve; 21. Lifting ring; 22. Sealing plate; 23. Circular pipe. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0017] like Figures 1 to 5As shown, the present invention discloses a pressure fluctuation buffer device for a high-temperature heat transfer oil circulation system, comprising a return pipe 1, a pump inlet pipe 2, and an expansion tank 3, as well as a gas-liquid separator assembly and a cooling assembly. The output end of the return pipe 1 is connected to the liquid inlet end of the gas-liquid separator assembly, the liquid outlet end of the gas-liquid separator assembly is connected to the input end of the pump inlet pipe 2, the gas outlet end of the gas-liquid separator assembly is connected to the gas inlet end of the cooling assembly, and the gas inlet and outlet ends of the cooling assembly are connected to the input end of the expansion tank 3.

[0018] The gas-liquid separator assembly includes a housing 4, an inlet pipe 5, an outlet pipe 6, an outlet pipe 7, a spiral blade 8, a cover plate 9, a sealing plate 22, and a circular tube 23. The sealing plate 22 is fixedly installed inside the housing 4, and the cover plate 9 is installed at the top of the housing 4. The cover plate 9 cooperates with the sealing plate 22 to divide the interior of the housing 4 into an upper chamber and a lower chamber. The circular tube 23 passes through the sealing plate 22 and is fixedly connected to the sealing plate 22. The upper chamber and the lower chamber are connected through the circular tube 23. The inlet pipe 5 is installed on the housing 4 and is connected to the lower chamber. The output end of the return pipe 1 is connected to the input end of the inlet pipe 5. The input end of the outlet pipe 6 is connected to the lower chamber. The outlet pipe 7 is connected to the upper chamber. The spiral blade 8 is installed between the outer wall of the circular tube 23 and the inner wall of the housing 4. The spiral blade 8 is in the lower chamber. The spiral blade 8, the sealing plate 22, and the inner wall of the housing 4 form a spiral guide channel.

[0019] In this embodiment, during use, the heat transfer oil is transported through the pump body and then through the return pipe 1 to the gas-liquid separator assembly to separate the heat transfer oil from the gas. The liquid heat transfer oil is transported to the boiler for heating through the pump inlet pipe 2. The heat transfer oil and gas enter the lower chamber through the return pipe 1 and the liquid inlet pipe 5 and are transported through the spiral guide channel. Under centrifugal force, the heat transfer oil gathers at the edge inside the guide channel and enters the bottom of the lower chamber of the housing 4 and returns to the heat transfer oil boiler for heating through the pump inlet pipe 2. After separation in the guide channel, the gas is transported to the upper chamber through the circular pipe 23 and then to the cooling assembly through the gas outlet pipe 7. After being cooled by the cooling assembly, the gas enters the expansion tank 3 for storage. The gas-liquid separation is achieved through the gas-liquid separator assembly, avoiding large fluctuations in the overall system caused by the gas. Example 2

[0020] like Figures 1 to 5 As shown, the present invention discloses a pressure fluctuation buffer device for a high-temperature heat transfer oil circulation system, comprising a return pipe 1, a pump inlet pipe 2, and an expansion tank 3, as well as a gas-liquid separator assembly and a cooling assembly. The output end of the return pipe 1 is connected to the liquid inlet end of the gas-liquid separator assembly, the liquid outlet end of the gas-liquid separator assembly is connected to the input end of the pump inlet pipe 2, the gas outlet end of the gas-liquid separator assembly is connected to the gas inlet end of the cooling assembly, and the gas inlet and outlet ends of the cooling assembly are connected to the input end of the expansion tank 3.

[0021] The gas-liquid separator assembly includes a housing 4, an inlet pipe 5, an outlet pipe 6, an outlet pipe 7, a spiral blade 8, a cover plate 9, a sealing plate 22, and a circular tube 23. The sealing plate 22 is fixedly installed inside the housing 4, and the cover plate 9 is installed at the top of the housing 4. The cover plate 9 cooperates with the sealing plate 22 to divide the interior of the housing 4 into an upper chamber and a lower chamber. The circular tube 23 passes through the sealing plate 22 and is fixedly connected to the sealing plate 22. The upper chamber and the lower chamber are connected through the circular tube 23. The inlet pipe 5 is installed on the housing 4 and is connected to the lower chamber. The output end of the return pipe 1 is connected to the input end of the inlet pipe 5. The input end of the outlet pipe 6 is connected to the lower chamber. The outlet pipe 7 is connected to the upper chamber. The spiral blade 8 is installed between the outer wall of the circular tube 23 and the inner wall of the housing 4. The spiral blade 8 is in the lower chamber. The spiral blade 8, the sealing plate 22, and the inner wall of the housing 4 form a spiral guide channel.

[0022] The cooling assembly includes a heat exchanger 10, a mounting base 11, a first gas supply pipe 12, a second gas supply pipe 13, a check valve 14, a water inlet pipe 15, and a water outlet pipe 16. The mounting base 11 is provided at the bottom of the heat exchanger 10. The output end of the gas outlet pipe 7 is connected to the input end of the first gas supply pipe 12. The output end of the first gas supply pipe 12 is connected to the gas inlet end of the heat exchanger 10. The gas outlet end of the heat exchanger 10 is connected to the input end of the second gas supply pipe 13. The output end of the second gas supply pipe 13 is connected to the expansion tank 3. A check valve 14 is installed on the second gas supply pipe 13. A water inlet pipe 15 is provided at the water inlet end of the heat exchanger 10, and a water outlet pipe 16 is provided at the water outlet end of the heat exchanger 10.

[0023] It also includes an exhaust pipe 17, a safety valve 18, a refueling pipe 19, a valve 20, a lifting ring 21, a sealing plate 22, and a circular pipe 23. The top of the expansion tank 3 is provided with an exhaust pipe 17, and the output end of the exhaust pipe 17 is provided with a safety valve 18. The expansion tank 3 and the return pipe 1 are provided with a refueling pipe 19, and the refueling pipe 19 is provided with a valve 20. The top of the cover plate 9 is equipped with a lifting ring 21.

[0024] In this embodiment, during use, the heat transfer oil is transported through the pump body and then through the return pipe 1 to the gas-liquid separator assembly to separate the heat transfer oil from the gas. The liquid heat transfer oil is then transported to the boiler for heating through the pump inlet pipe 2. The heat transfer oil and gas enter the lower chamber through the return pipe 1 and the liquid inlet pipe 5 and are transported through the spiral guide channel. Under centrifugal force, the heat transfer oil gathers at the edge of the guide channel and enters the bottom of the lower chamber of the housing 4, returning to the heat transfer oil boiler for heating through the pump inlet pipe 2. After separation in the guide channel, the gas is transported to the upper chamber through the circular pipe 23 and then to the cooling assembly through the gas outlet pipe 7. The separated gas enters the return pipe 1 through the first gas supply pipe 12. During use, cooling water enters the heat exchanger 10 through the water inlet pipe 15 to cool the gas inside the return pipe 1. The cooled gas is then transported to the expansion tank 3 through the second gas supply pipe 13 for temporary storage, thus buffering the system pressure.

[0025] The safety valve 18 of the high-temperature heat transfer oil circulation system pressure fluctuation buffer device of this utility model is commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0026] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A pressure fluctuation buffer device for a high-temperature heat transfer oil circulation system, comprising a return pipe (1), a pump inlet pipe (2), and an expansion tank (3), characterized in that, It also includes a gas-liquid separator assembly and a cooling assembly. The output end of the return pipe (1) is connected to the liquid inlet end of the gas-liquid separator assembly, the liquid outlet end of the gas-liquid separator assembly is connected to the input end of the pump front pipe (2), the gas outlet end of the gas-liquid separator assembly is connected to the gas inlet end of the cooling assembly, and the gas inlet and outlet ends of the cooling assembly are connected to the input end of the expansion tank (3).

2. The pressure fluctuation buffer device for a high-temperature heat transfer oil circulation system as described in claim 1, characterized in that, The gas-liquid separator assembly includes a housing (4), an inlet pipe (5), an outlet pipe (6), an outlet pipe (7), a spiral blade (8), a cover plate (9), a sealing plate (22), and a circular tube (23). The sealing plate (22) is fixedly installed inside the housing (4), and the cover plate (9) is installed at the top of the housing (4). The cover plate (9) cooperates with the sealing plate (22) to divide the interior of the housing (4) into an upper chamber and a lower chamber. The circular tube (23) passes through the sealing plate (22) and is fixedly connected to the sealing plate (22). The shell (4) is connected by a circular tube (23) and an inlet pipe (5) is provided on the shell (4). The inlet pipe (5) is connected to the lower chamber. The output end of the return pipe (1) is connected to the input end of the inlet pipe (5). The input end of the outlet pipe (6) is connected to the lower chamber. The vent pipe (7) is connected to the upper chamber. A spiral blade (8) is provided between the outer wall of the circular tube (23) and the inner wall of the shell (4). The spiral blade (8) is in the lower chamber. The spiral blade (8) forms a spiral guide channel with the sealing plate (22) and the inner wall of the shell (4).

3. The pressure fluctuation buffer device for a high-temperature heat transfer oil circulation system as described in claim 2, characterized in that, The cooling assembly includes a heat exchanger (10), a fixed base (11), a first gas supply pipe (12), a second gas supply pipe (13), a check valve (14), a water inlet pipe (15), and a water outlet pipe (16). The bottom of the heat exchanger (10) is provided with a fixed base (11). The output end of the gas outlet pipe (7) is connected to the input end of the first gas supply pipe (12). The output end of the first gas supply pipe (12) is connected to the gas inlet end of the heat exchanger (10). The gas outlet end of the heat exchanger (10) is connected to the input end of the second gas supply pipe (13). The output end of the second gas supply pipe (13) is connected to the expansion tank (3). A check valve (14) is installed on the second gas supply pipe (13). The water inlet end of the heat exchanger (10) is provided with a water inlet pipe (15), and the water outlet end of the heat exchanger (10) is provided with a water outlet pipe (16).

4. The pressure fluctuation buffer device for a high-temperature heat transfer oil circulation system as described in claim 1, characterized in that, It also includes an exhaust pipe (17) and a safety valve (18). The top of the expansion tank (3) is provided with an exhaust pipe (17), and the output end of the exhaust pipe (17) is provided with a safety valve (18).

5. The pressure fluctuation buffer device for a high-temperature heat transfer oil circulation system as described in claim 1, characterized in that, It also includes a refueling pipe (19), which is provided between the expansion tank (3) and the return pipe (1).

6. The pressure fluctuation buffer device for a high-temperature heat transfer oil circulation system as described in claim 5, characterized in that, It also includes a valve (20), which is provided on the refueling pipe (19).

7. The pressure fluctuation buffer device for a high-temperature heat transfer oil circulation system as described in claim 2, characterized in that, It also includes a lifting ring (21), which is installed on the top of the cover plate (9).

Images