Anti-volatilization secondary refrigerant circulating device

Abstract

The anti-volatilization secondary refrigerant circulating device comprises a storage tank body, an upper positioning body is fixedly installed above the storage tank body, a solid-gas isolation assembly is movably installed in the upper positioning body, the bottom of the solid-gas isolation assembly extends into the storage tank body, and a refrigerating machine is connected to the outer portion of the storage tank body in a pumping mode. The end, away from the storage tank body, of the refrigerating machine is connected to a user pipeline, a backflow flow connecting pipe is fixedly installed in the upper positioning body, one end of the backflow flow connecting pipe is connected with the user pipeline, and the other end of the backflow flow connecting pipe is movably sleeved with a backflow sleeve. The solid-gas isolation assembly movably installed on the upper positioning body movably floats in the storage tank body according to the height of the liquid level in the storage tank, the contact area of the top face of a secondary refrigerant and the gas phase in the storage tank body is reduced, and then inert gas is introduced into the storage tank body. And the volatilization loss of the secondary refrigerant is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of secondary refrigerant circulation, in particular to a secondary refrigerant circulation device for preventing volatilization. Background Art

[0002] In chemical production plants, it is necessary to effectively cool and heat exchange process media through refrigerants. Normal temperature water cooling and heat exchange are usually achieved through circulating cold water, and low-temperature water heat exchange is achieved through the use of secondary refrigerants. Ethylene glycol aqueous solution is the most commonly used secondary refrigerant. When selecting the concentration of ethylene glycol aqueous solution, it must be determined according to the cooling capacity temperature, and the lowest temperature of the chilled water must not be lower than its freezing point.

[0003] In existing chemical production plants, the configuration, storage, and circulation of secondary refrigerants usually use above-ground vertical fixed storage tanks for storage, pressurized by a pump system, heat exchanged through a refrigeration unit, sent to the production plant through a main pipe and distributed to specific heat exchange user points, and finally collected under pressure by the main pipe after heat exchange and returned to the storage tank system to achieve a closed cycle. This system is suitable for small-scale fine chemical plants. However, during the use of secondary refrigerants, due to the connection between the storage tank and the atmosphere, the secondary refrigerant is in long-term contact with air and oxidized. Therefore, during storage and transportation, there is volatilization loss of the secondary refrigerant in the storage tank.

[0004] Therefore, in view of the deficiencies of the existing technology, it is very necessary to provide a secondary refrigerant circulation device for preventing volatilization to solve the deficiencies of the existing technology. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a secondary refrigerant circulation device for preventing volatilization, which avoids the deficiencies of the existing technology. The secondary refrigerant circulation device for preventing volatilization floats inside the storage tank according to the liquid level height inside the storage tank through a solid-gas isolation component movably installed on the upper positioning body, reducing the contact area between the top surface of the secondary refrigerant and the internal gas phase of the storage tank. Then, an inert gas is introduced into the storage tank to further reduce the volatilization loss of the secondary refrigerant.

[0006] The above object of the utility model is achieved by the following technical means.

[0007] Provide a secondary refrigerant circulation device for preventing volatilization, including a storage tank body, an upper positioning body is fixedly installed above the storage tank body, a solid-gas isolation component is movably installed inside the upper positioning body, the bottom of the solid-gas isolation component extends into the storage tank body, a refrigerating machine is connected to the outside of the storage tank body by pumping, one end of the refrigerating machine away from the storage tank body is connected to a user pipeline, a return flow transfer pipe is fixedly installed inside the upper positioning body, one end of the return flow transfer pipe is connected to the user pipeline, and the other end is movably sleeved with a return flow sleeve;

[0008] The reflux sleeve is connected to the solid-gas isolation component. The top of the solid-gas isolation component extends to the outside of the upper positioning body and is movably connected to an inert gas input pump. The top of the upper positioning body is also fixedly installed with an adjusting drive cylinder, and the bottom of the adjusting drive cylinder is fixedly connected to the solid-gas isolation component.

[0009] Specifically, an activity channel is opened inside the upper positioning body. The solid-gas isolation component includes a movable outer tube, which is movably installed inside the activity channel. An activity inner tube is fixedly installed inside the movable outer tube. The bottom of the activity inner tube extends to the outside of the movable outer tube. A solid floating plate is fixedly installed at the bottom of the movable outer tube. The top of the activity inner tube extends to the outside of the upper positioning body and is movably connected to the inert gas input pump. A force transmission block is fixedly installed at the top of the activity inner tube, and the force transmission block is fixedly connected to the adjusting drive cylinder.

[0010] Preferably, the reflux sleeve is movably installed inside the upper positioning body and sleeved outside the reflux transfer pipe. The bottom of the reflux sleeve passes through the solid floating plate, and a control valve body is fixed at the bottom of the reflux sleeve.

[0011] Specifically, a pressure gauge is fixedly installed on the activity inner tube.

[0012] In the utility model, the solid-gas isolation component movably installed on the upper positioning body floats inside the storage tank according to the liquid level height inside the storage tank, reducing the contact area between the top surface of the coolant and the internal gas phase of the storage tank body. Then, inert gas is introduced into the storage tank body to further reduce the volatilization loss of the coolant. Description of the Drawings

[0013] The present utility model is further described with reference to the accompanying drawings, but the content in the drawings does not constitute any limitation to the present utility model.

[0014] Figure 1 It is a schematic structural diagram of a coolant circulation device with anti-volatilization of the present utility model.

[0015] From Figure 1 Among them, it includes:

[0016] 1. Storage tank body;

[0017] 2. Upper positioning body;

[0018] 3. Refrigerator;

[0019] 4. User pipeline;

[0020] 5. Reflux transfer pipe;

[0021] 6. Reflux sleeve;

[0022] 7. Inert gas input pump;

[0023] 8. Adjusting drive cylinder;

[0024] 9. Activity channel;

[0025] 10. Movable outer tube;

[0026] 11. Movable inner tube;

[0027] 12. Solid floating plate;

[0028] 13. Force transmission block;

[0029] 14. Control valve body;

[0030] 15. Pressure gauge. Specific implementation mode

[0031] The present utility model will be further described in conjunction with the following embodiments.

[0032] Embodiment 1.

[0033] As Figure 1 shown, a volatilization-proof coolant circulation device includes a storage tank body 1, an upper positioning body 2 is fixedly installed above the storage tank body 1, a solid-gas isolation component is movably installed inside the upper positioning body 2, the bottom of the solid-gas isolation component extends into the storage tank body 1, a refrigerator 3 is pump-connected outside the storage tank body 1, one end of the refrigerator 3 away from the storage tank body 1 is connected to a user pipeline 4, a return flow transfer pipe 5 is fixedly installed inside the upper positioning body 2, one end of the return flow transfer pipe 5 is connected to the user pipeline 4, and the other end is movably sleeved with a return flow sleeve 6.

[0034] This application is used for volatilization-proof treatment of the coolant circulation device. First, the coolant is stored in the storage tank body 1, and then the solid-gas isolation component movably installed inside the upper positioning body 2 and inside the storage tank body 1 reduces the contact between the coolant and air in solid and liquid forms to prevent the volatilization of the coolant. The coolant is sent into the refrigerator 3 through a pump body for heat exchange, then enters the user pipeline 4, and then flows out from the user pipeline 4 to the return flow transfer pipe 5 and the return flow sleeve 6, and finally flows back into the storage tank body 1.

[0035] The return flow sleeve 6 is connected to the solid-gas isolation component, the top of the solid-gas isolation component extends outside the upper positioning body 2 and is movably connected to an inert gas input pump 7, and an adjusting drive cylinder 8 is also fixedly installed on the top of the upper positioning body 2, and the bottom of the adjusting drive cylinder 8 is fixedly connected to the solid-gas isolation component.

[0036] The solid-gas isolation component is driven by the adjusting drive cylinder 8 to move up and down inside the upper positioning body 2 and the storage tank body 1. The solid-gas isolation component is connected to the inert gas input pump 7 to introduce inert gas into the storage tank body 1 to prevent the volatilization of the coolant.

[0037] An activity channel 9 is provided inside the upper positioning body 2. The solid-gas isolation assembly includes an activity outer tube 10 which is movably installed inside the activity channel 9. An activity inner tube 11 is fixedly installed inside the activity outer tube 10. The bottom of the activity inner tube 11 extends to the outside of the activity outer tube 10. A solid floating plate 12 is fixedly installed at the bottom of the activity outer tube 10. The top of the activity inner tube 11 extends to the outside of the upper positioning body 2 and is movably connected to the inert gas input pump 7. A force transmission block 13 is fixedly installed at the top of the activity inner tube 11, and the force transmission block 13 is fixedly connected to the adjustment driving cylinder 8.

[0038] The solid-gas isolation assembly drives the force transmission block 13 to lift and lower through the output of the adjustment driving cylinder 8, and then drives the activity inner tube 11 to lift and lower inside the upper positioning body 2. The activity inner tube 11 drives the activity outer tube 10 to lift and lower inside the activity channel 9. The activity outer tube 10 drives the solid floating plate 12 to move inside the storage tank body 1, so that the solid floating plate 12 is always at the topmost position of the coolant liquid level, reducing the contact area between the coolant and the air, and further reducing the volatilization of the coolant.

[0039] The return flow sleeve 6 is movably installed inside the upper positioning body 2 and sleeved outside the return flow transfer pipe 5. The bottom of the return flow sleeve 6 passes through the solid floating plate 12, and a control valve body 14 is fixed at the bottom of the return flow sleeve 6.

[0040] The returned coolant enters the inside of the return flow sleeve 6 through the return flow transfer pipe 5, and then further passes through the solid floating plate 12 and enters the inside of the storage tank body 1. The return flow sleeve 6 can be movably sleeved on the return flow transfer pipe 5 along with the lifting of the solid floating plate 12.

[0041] A pressure gauge 15 is fixedly installed on the activity inner tube 11.

[0042] The intake air pressure is monitored on the activity inner tube 11, so that the inside of the storage tank body 1 always maintains a slightly positive pressure.

[0043] In the utility model, the solid-gas isolation assembly movably installed on the upper positioning body 2 floats inside the storage tank body 1 according to the liquid level height inside the storage tank, reducing the contact area between the top surface of the coolant and the gas phase inside the storage tank body 1, and then introducing inert gas into the inside of the storage tank body 1 to further reduce the volatilization loss of the coolant.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the utility model.

Claims

1. A volatilization-proof coolant circulation device, characterized in that: It comprises a storage tank body, an upper positioning body is fixedly installed on the top of the storage tank body, a solid-gas isolation assembly is movably installed inside the upper positioning body, the bottom of the solid-gas isolation assembly extends to the inside of the storage tank body, the external pumping of the storage tank body is connected to a refrigerator, one end of the refrigerator away from the storage tank body is connected to a user pipeline, a return transfer pipe is fixedly installed inside the upper positioning body, one end of the return transfer pipe is connected to the user pipeline, and the other end is movably sleeved with a return sleeve; The return sleeve is connected to the solid-gas isolation assembly, the top of the solid-gas isolation assembly extends to the outside of the upper positioning body and is movably connected to an inert gas input pump, and an adjusting drive cylinder is also fixedly installed on the top of the upper positioning body, and the bottom of the adjusting drive cylinder is fixedly connected to the solid-gas isolation assembly.

2. The anti-volatile coolant circulation device according to claim 1, characterized in that: A movable passage is opened inside the upper positioning body, and the solid-gas isolation assembly includes a movable outer tube, which is movably installed inside the movable passage, and a movable inner tube is fixedly installed inside the movable outer tube, and the bottom of the movable inner tube extends to the outside of the movable outer tube, and a solid floating plate is fixedly installed on the bottom of the movable outer tube, and the top of the movable inner tube extends to the outside of the upper positioning body and is movably connected to the inert gas input pump, and a force transmission block is fixedly installed on the top of the movable inner tube, and the force transmission block is fixedly connected to the adjusting drive cylinder.

3. The anti-volatile coolant circulation device according to claim 2, characterized in that: The return sleeve is movably installed inside the upper positioning body and sleeved on the outside of the return transfer tube. The bottom of the return sleeve passes through the solid floating plate, and the bottom of the return sleeve is fixed to the control valve body.

4. The anti-volatile coolant circulation device according to claim 3, characterized in that: A pressure gauge is fixedly installed on the movable inner tube.

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