Vapor supply device

Abstract

The utility model provides a steam supply device which comprises a thermolator, a gas-liquid separator and a liquid supply device, the gas-liquid separator comprises a mixed inlet, a steam outlet and a liquid outlet, and the thermolator comprises a liquid inlet and a mixed outlet; when the thermolator is used, the liquid inlet of the thermolator is filled with liquid, and the mixing outlet of the thermolator is filled with a mixture of steam and liquid. The mixing inlet is higher than the mixing outlet in the vertical direction, and a gas-liquid mixture at the mixing outlet of the thermolator can be lifted to the mixing inlet of the gas-liquid separator through the thermosyphon effect. The mixed outlet is connected with the mixed inlet, and the liquid outlet is connected with the liquid inlet to form a circulation loop; and steam escapes from a steam outlet of the gas-liquid separator, and the liquid supply equipment timely supplements the reduced liquid in the circulation loop. When the steam supply device supplies and generates high-temperature steam, a water pump does not need to be configured, so that the fixed investment cost is reduced, and an independent external power supply is not needed.

Description

Technical Field

[0001] The utility model relates to the field of waste heat recovery and heat energy supply, in particular to a steam supply device. Background Art

[0002] In the prior art, high-temperature water vapor is widely used in industrial production, so a supply device that continuously generates high-temperature water vapor is required. Generally speaking, the supply device includes a water circulation system that is widely used to absorb, release and store heat. The water circulation system provides circulation power through a configured water pump. The circulation power drives the water flow to be heated. The high-temperature water vapor after the water flow is vaporized is separated for use in industrial production. The remaining water flow is driven again by the circulation power and repeatedly heated. However, the existence of the water pump not only brings higher fixed investment costs, but also requires an independent external power supply, consuming additional electricity. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a steam supply device in order to overcome the defect that the water circulation system of the supply device for continuously generating high-temperature water vapor in the prior art needs to be equipped with a water pump, the existence of the water pump not only brings high fixed investment costs, but also requires an independent external power supply, consuming additional electric energy.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] A steam supply device comprises a thermostat, a gas-liquid separator and a liquid supply device, wherein the gas-liquid separator comprises a mixing inlet, a steam outlet and a liquid outlet, the thermostat comprises a liquid inlet and a mixing outlet, the mixing inlet is higher than the mixing outlet in a vertical direction, the mixing outlet and the mixing inlet are connected, and the liquid outlet and the liquid inlet are connected to form a circulation loop, and the liquid supply device supplies liquid that can be heated to vaporization by the thermostat to the circulation loop.

[0006] In the technical solution, a steam supply device is provided, which includes a thermostat, a gas-liquid separator, and a liquid supply device. The gas-liquid separator includes a mixing inlet, a steam outlet, and a liquid outlet, and the thermostat includes a liquid inlet and a mixing outlet. When in use, the liquid inlet of the thermostat is filled with liquid, and the mixing outlet of the thermostat is filled with a mixture of steam and liquid. The mixing inlet is higher than the mixing outlet in the vertical direction, and the existence of the thermal siphon effect (a siphon phenomenon generated by heat as a driving force) can be utilized, that is, when the thermostat heats the liquid, the liquid partially vaporizes to form a gas-liquid mixture, the density becomes smaller, the volume expands, and the density becomes smaller and lighter; thus, the density difference between the gas phase and the liquid phase serves as a driving force to lift the gas-liquid mixture at the mixing outlet of the thermostat to the mixing inlet of the gas-liquid separator. The mixed outlet and the mixed inlet are connected, and the liquid outlet and the liquid inlet are connected to form a circulation loop. The unvaporized liquid flows from the liquid outlet of the gas-liquid separator into the liquid inlet of the thermostat to form a gas-liquid mixture circulation between the thermostat and the gas-liquid separator. When the liquid vaporizes into steam, it escapes from the steam outlet of the gas-liquid separator for use in industrial production. The liquid supply equipment supplies liquid that can be heated to vaporization by the thermostat to the circulation loop, and timely replenishes the reduced liquid in the circulation loop to avoid the problem of too little liquid causing the thermal siphon phenomenon to fail to occur, or the problem of the thermostat continuously heating too little liquid and causing over-temperature and shutdown. Therefore, the steam supply device does not need to be equipped with a water pump while supplying and generating high-temperature steam, thereby reducing fixed investment costs and not requiring an independent external power supply.

[0007] Preferably, the gas-liquid separator comprises a shell and a separator, the vapor outlet is located at the top of the shell, the separator is located inside the shell, and the separator can block the unvaporized liquid at the vapor outlet.

[0008] In the present technical solution, a gas-liquid separator is provided including a shell and a separator, the steam outlet is located at the top of the shell, and the separator is located inside the shell. The separator can block the unvaporized liquid at the steam outlet, thereby reducing the liquid content in the gas-liquid mixture at the steam outlet, increasing the density difference between the gas-liquid mixture at the heat exchange outlet of the thermostat and the mixing inlet of the gas-liquid separator, aggravating the thermal siphon effect, further promoting the circulation of the gas-liquid mixture between the thermostat and the gas-liquid separator, and can improve the dryness of the steam escaping from the steam outlet of the gas-liquid separator.

[0009] Preferably, the separator is a spiral impeller, which comprises a shaft body and a plurality of blades arranged at intervals along the axial direction of the shaft body, and a guide angle is formed between the blades and the axis of the shaft body.

[0010] In the present technical solution, the separator is set as a spiral impeller, which includes a shaft body and a plurality of blades arranged at axial intervals along the shaft body, and a guide angle is formed between the blades and the axis of the shaft body; when the gas-liquid mixture inside the shell passes through the separator, the plurality of blades play a role of blocking and separating the gas-liquid mixture, including the blades with the guide angle that make the gas-liquid mixture flow in a spiral direction and centrifugally separate the liquid in the gas-liquid mixture, thereby better promoting the circulation of the gas-liquid mixture between the thermostat and the gas-liquid separator and improving the dryness of the steam escaping from the steam outlet of the gas-liquid separator.

[0011] Preferably, the separation element is located in the middle of the shell.

[0012] In this technical solution, by arranging the separator in the middle of the shell, the following problems can be avoided: when the separator is too close to the top of the shell, the liquid is easily carried out of the vapor outlet of the gas-liquid separator; when the separator is too close to the bottom of the shell, the separator will be submerged and lose the function of blocking the liquid. At the same time, the processing technology determines that the separator is more reasonable in the middle of the gas-liquid separator and is easier to manufacture.

[0013] Preferably, the thermostat heats the liquid between the liquid inlet and the mixing outlet to vaporize through a heat source.

[0014] In the present technical solution, a thermostat is provided to heat the liquid between the liquid inlet and the mixing outlet to vaporize through a heat source, so that the thermal siphon effect can be utilized with a relatively simple structure.

[0015] Preferably, the liquid is water, the temperature of the heat source when contacting the thermostat is greater than or equal to 100°C, and the temperature of the water flow supplied by the liquid supply device to the circulation loop is 80°C to 90°C.

[0016] In the present technical solution, by setting the liquid to water, the temperature of the heat source when contacting the thermostat is greater than or equal to 100°C, and the temperature of the water flow supplied by the liquid supply equipment to the circulation loop is 80°C to 90°C, so that the water flow at the mixing outlet of the gas-liquid separator can be stably vaporized, thereby facilitating the stable supply of water vapor by utilizing the thermal siphon effect.

[0017] Preferably, the steam supply device further comprises a liquid supply pipeline, one end of which is connected to the liquid supply equipment;

[0018] The other end of the liquid supply pipeline is connected to the lower part of the gas-liquid separator; or,

[0019] The other end of the liquid supply pipeline is connected to the liquid inlet; or,

[0020] The steam supply device further comprises a condensation pipe, the liquid outlet is connected to the liquid inlet via the condensation pipe, and the other end of the liquid supply pipe is connected to the condensation pipe.

[0021] In the technical solution, the steam supply device also includes a liquid supply pipe, one end of which is connected to the liquid supply device. The other end of the liquid supply pipe is connected to the lower part of the gas-liquid separator; or, the other end of the liquid supply pipe is connected to the liquid inlet; or, the steam supply device also includes a condensation pipe, the liquid outlet is connected to the liquid inlet through the condensation pipe, and the other end of the liquid supply pipe is connected to the condensation pipe. All of these can replenish the reduced liquid in the circulation loop in a timely manner with a relatively simple structure, avoiding the problem that the thermal siphon phenomenon cannot occur due to too little liquid, or the problem that the thermostat continues to heat too little liquid and causes over-temperature and shutdown.

[0022] Preferably, the liquid supply equipment is a constant temperature water tank.

[0023] In the present technical solution, by setting the liquid supply device as a constant temperature water tank, a relatively stable temperature can be provided for the liquid inlet of the thermostat with a relatively simple structure, so that the water flow at the mixed outlet of the gas-liquid separator can be stably vaporized, thereby facilitating the stable supply of water vapor by utilizing the thermal siphon effect.

[0024] Preferably, the steam supply device further comprises a first check valve, and the first check valve is located outside the liquid outlet.

[0025] In the present technical solution, by setting the steam supply device also including a first check valve, the first check valve is located outside the liquid outlet, which can avoid the problem of backflow or reflux in the circulation loop with a relatively simple structure, especially avoid the gas-liquid mixture from reversely entering the liquid outlet of the gas-liquid separator through the liquid inlet of the thermostat.

[0026] Preferably, the thermostat is a plate heat exchanger; and / or,

[0027] The gas-liquid separator is a vertical steam-water separator.

[0028] In this technical solution, by setting the thermostat as a plate heat exchanger, the liquid can be heated with a relatively simple structure. By setting the gas-liquid separator as a vertical steam-water separator, the steam supply device can have low investment cost, small space occupation, and is not easy to scale.

[0029] The positive and progressive effects of the utility model are:

[0030] In the technical solution, a steam supply device is provided, which includes a thermostat, a gas-liquid separator, and a liquid supply device. The gas-liquid separator includes a mixing inlet, a steam outlet, and a liquid outlet, and the thermostat includes a liquid inlet and a mixing outlet. When in use, the liquid inlet of the thermostat is filled with liquid, and the mixing outlet of the thermostat is filled with a mixture of steam and liquid. The mixing inlet is higher than the mixing outlet in the vertical direction, and the existence of the thermal siphon effect (a siphon phenomenon generated by heat as a driving force) can be utilized, that is, when the thermostat heats the liquid, the liquid partially vaporizes to form a gas-liquid mixture, the density becomes smaller, the volume expands, and the density becomes smaller and lighter; thus, the density difference between the gas phase and the liquid phase serves as a driving force to lift the gas-liquid mixture at the mixing outlet of the thermostat to the mixing inlet of the gas-liquid separator. The mixed outlet and the mixed inlet are connected, and the liquid outlet and the liquid inlet are connected to form a circulation loop. The unvaporized liquid flows from the liquid outlet of the gas-liquid separator into the liquid inlet of the thermostat to form a gas-liquid mixture circulation between the thermostat and the gas-liquid separator. When the liquid vaporizes into steam, it escapes from the steam outlet of the gas-liquid separator for use in industrial production. The liquid supply equipment supplies liquid that can be heated to vaporization by the thermostat to the circulation loop, and timely replenishes the reduced liquid in the circulation loop to avoid the problem of too little liquid causing the thermal siphon phenomenon to fail to occur, or the problem of the thermostat continuously heating too little liquid and causing over-temperature and shutdown. Therefore, the steam supply device does not need to be equipped with a water pump while supplying and generating high-temperature steam, thereby reducing fixed investment costs and not requiring an independent external power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a steam supply device according to an embodiment of the utility model.

[0032] Figure 2 This is a schematic structural diagram of a gas-liquid separator according to an embodiment of the utility model.

[0033] Figure 3 It is a schematic diagram of the three-dimensional structure of a separation piece according to an embodiment of the utility model.

[0034] Figure 4 The figure is a schematic cross-sectional structure diagram of a separation element according to an embodiment of the present utility model.

[0035] Description of reference numerals:

[0036] First check valve 01

[0037] Second check valve 02

[0038] The third check valve 03

[0039] Thermostat 1

[0040] Liquid inlet 11

[0041] Mixed outlet 12

[0042] Heat source entrance 13

[0043] Heat source outlet 14

[0044] Gas-liquid separator 2

[0045] Mixed entrance 21

[0046] Steam outlet 22

[0047] Liquid outlet 23

[0048] Housing 24

[0049] Separator 25

[0050] Axis 251

[0051] Blade 252

[0052] Liquid supply equipment 3

[0053] Condensation pipe 4

[0054] Liquid supply pipeline 5 DETAILED DESCRIPTION

[0055] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0056] like Figure 1-Figure 4As shown, this embodiment provides a steam supply device, which includes a thermostat 1, a gas-liquid separator 2, and a liquid supply device 3. The gas-liquid separator 2 includes a mixing inlet 21, a steam outlet 22, and a liquid outlet 23. The thermostat 1 includes a liquid inlet 11 and a mixing outlet 12. When in use, the liquid inlet 11 of the thermostat 1 is filled with liquid, and the mixing outlet 12 of the thermostat 1 is filled with a mixture of steam and liquid. The mixing inlet 21 is higher than the mixing outlet 12 in the vertical direction (that is, the plane where the mixing inlet 21 is located is higher than the plane where the mixing outlet 12 is located), and the existence of the thermal siphon effect (a siphon phenomenon generated by heat as a driving force) can be utilized, that is: when the thermostat 1 heats the liquid, the liquid partially vaporizes to form a gas-liquid mixture, the density becomes smaller, the volume expands, and the density becomes smaller and lighter; therefore, the density difference between the gas phase and the liquid phase serves as a driving force to lift the gas-liquid mixture at the mixing outlet 12 of the thermostat 1 to the mixing inlet 21 of the gas-liquid separator 2. The mixing outlet 12 is connected to the mixing inlet 21, and the liquid outlet 23 is connected to the liquid inlet 11 to form a circulation loop. The unvaporized liquid flows from the liquid outlet 23 of the gas-liquid separator 2 into the liquid inlet 11 of the thermostat 1 to form a gas-liquid mixture circulation between the thermostat 1 and the gas-liquid separator 2. When the liquid is vaporized into steam, it escapes from the steam outlet 22 of the gas-liquid separator 2 for use in industrial production. The liquid supply device 3 supplies liquid that can be heated to vaporization by the thermostat 1 to the circulation loop, and replenishes the reduced liquid in the circulation loop in time to avoid the problem that the thermal siphon phenomenon cannot occur due to too little liquid, or the problem that the thermostat 1 continues to heat too little liquid and overheats and causes shutdown. Therefore, the steam supply device does not need to be equipped with a water pump while supplying and generating high-temperature steam, thereby reducing fixed investment costs and does not require an independent external power supply.

[0057] Please refer to Figure 2 In this embodiment, the gas-liquid separator 2 includes a shell 24 and a separator 25, the steam outlet 22 is located at the top of the shell 24, and the separator 25 is located inside the shell 24. The separator 25 can block the unvaporized liquid at the steam outlet 22, which can reduce the liquid content in the gas-liquid mixture at the steam outlet 22, increase the difference in density of the gas-liquid mixture at the heat exchange outlet 12 of the thermostat 1 and the mixing inlet 21 of the gas-liquid separator 2, intensify the thermal siphon effect, further promote the circulation of the gas-liquid mixture between the thermostat 1 and the gas-liquid separator 2, and can improve the dryness of the steam escaping from the steam outlet 22 of the gas-liquid separator 2.

[0058] Please refer to Figure 3-Figure 4In this embodiment, the separator 25 is set as a spiral impeller, which is stationary and includes a shaft 251 and multiple blades 252 arranged at intervals along the axial direction of the shaft 251, and a guide angle α is formed between the blades 252 and the axis of the shaft 251; when the gas-liquid mixture inside the housing 24 passes through the separator 25, the multiple blades 252 play a role in blocking and separating the gas-liquid mixture, including the blades 252 with a guide angle α to make the gas-liquid mixture flow in a spiral and centrifugally separate the liquid in the gas-liquid mixture, so as to better promote the circulation of the gas-liquid mixture between the thermostat 1 and the gas-liquid separator 2 and improve the dryness of the steam escaping from the steam outlet 22 of the gas-liquid separator 2. Of course, in other embodiments, the separator can also adopt other structural forms, such as a screen.

[0059] In this embodiment, by arranging the separator 25 in the middle of the shell 24, the following problems can be avoided: when the separator 25 is too close to the top of the shell 24, the liquid is easily carried out of the vapor outlet 22 of the gas-liquid separator 2; when the separator 25 is too close to the bottom of the shell 24, the separator 25 will be immersed and lose the function of blocking the liquid. At the same time, the processing technology determines that the separator 25 is more reasonable in the middle of the gas-liquid separator 2, which is easier to manufacture.

[0060] In this embodiment, the thermostat 1 is provided to heat the liquid between the liquid inlet 11 and the mixing outlet 12 to vaporize through a heat source, so that the thermal siphon effect can be utilized with a relatively simple structure. In this embodiment, the heat source is a high-pressure refrigerant, which enters from the heat source inlet 13 and flows out from the heat source outlet 14; in other embodiments, the heat source can also be other components, and the liquid can be heated to vaporize through other structures, such as heat exchange fins flowing through the liquid inlet and the mixing outlet.

[0061] In this embodiment, by setting the liquid to be water, the temperature of the heat source when contacting the thermostat 1 is greater than or equal to 100°C, and the temperature of the water flow supplied by the liquid supply device 3 to the circulation loop is 80°C to 90°C, so that the water flow at the mixed outlet 12 of the gas-liquid separator 2 can be stably vaporized, which is convenient for stably supplying water vapor using the thermal siphon effect. In this embodiment, temperature sensors are set at the heat exchange inlet 11 and the heat exchange outlet 12 of the thermostat 1 and the inside of the liquid supply device 3, and temperature feedback is added to the liquid supply device 3 to ensure the thermal siphon process; if the water inlet temperature of 80-90°C is not reached, the electric heating is turned on to make the temperature reach the standard. Of course, in other embodiments, when the composition of the liquid changes, the temperature of the thermostat 1 and the temperature of the liquid supplied by the liquid supply device to the circulation loop must be adjusted accordingly to adapt the boiling point of the liquid to utilize the thermal siphon effect.

[0062] In this embodiment, the steam supply device also includes a liquid supply pipe 5, one end of which is connected to the liquid supply device 3. The steam supply device also includes a condensation pipe 4. The liquid outlet 23 is connected to the liquid inlet 11 through the condensation pipe 4. The other end of the liquid supply pipe 5 is connected to the condensation pipe 4. The reduced liquid in the circulation loop can be replenished in time with a relatively simple structure to avoid the problem of too little liquid causing the thermal siphon phenomenon to fail to occur, or the problem of the thermostat 1 continuously heating too little liquid and causing overheating and shutdown. Of course, in other embodiments, the other end of the liquid supply pipe 5 can also be connected to the lower part of the gas-liquid separator 2, or the other end of the liquid supply pipe 5 can be connected to the liquid inlet 11.

[0063] In this embodiment, by setting the liquid supply device 3 as a constant temperature water tank, a relatively stable temperature can be provided for the liquid inlet 11 of the thermostat 1 with a relatively simple structure, so that the water flow at the mixing outlet 12 of the gas-liquid separator 2 can be stably vaporized, which is convenient for utilizing the thermal siphon effect to stably supply water vapor.

[0064] In this embodiment, the steam supply device further includes a first check valve 01, which is located outside the liquid outlet 23, so that the problem of backflow or reflux in the circulation loop can be avoided with a relatively simple structure, especially to prevent the gas-liquid mixture from reversely entering the liquid outlet 23 of the gas-liquid separator 2 through the liquid inlet 11 of the thermostat 1. In this embodiment, the steam supply device also includes a second check valve 02 and a third check valve 03 located on the liquid supply pipeline 5, the second check valve 02 is close to the liquid supply device 3, and the third check valve 03 is close to the condensation pipeline 4, so as to prevent the gas-liquid mixture from reversely entering the liquid supply device 3 through the liquid inlet 11 of the thermostat 1. Of course, in other embodiments, other structures can also be set to avoid the problem of backflow or reflux.

[0065] In this embodiment, by setting the thermostat 1 as a plate heat exchanger, the liquid can be heated with a relatively simple structure. By setting the gas-liquid separator 2 as a vertical steam-water separator, the steam supply device can have low investment cost, small space occupation, and is not easy to scale. Of course, in other embodiments, the thermostat and the gas-liquid separator can adopt other forms that meet the requirements.

[0066] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A steam supply device, characterized in that: It comprises a thermostat, a gas-liquid separator, and a liquid supply device, wherein the gas-liquid separator comprises a mixing inlet, a vapor outlet, and a liquid outlet, the thermostat comprises a liquid inlet and a mixing outlet, the mixing inlet is higher than the mixing outlet in a vertical direction, the mixing outlet is connected to the mixing inlet, and the liquid outlet is connected to the liquid inlet to form a circulation loop, and the liquid supply device supplies liquid that can be heated to vaporization by the thermostat to the circulation loop; The gas-liquid separator comprises a shell and a separator, wherein the vapor outlet is located at the top of the shell, and the separator is located inside the shell, and the separator can block the unvaporized liquid at the vapor outlet; The separator is a spiral impeller, which includes a shaft body and a plurality of blades arranged at intervals along the axial direction of the shaft body, and a guide angle is formed between the blades and the axis of the shaft body.

2. The steam supply device according to claim 1, characterized in that: The separation element is located in the middle of the shell.

3. The steam supply device according to claim 1, characterized in that: The thermostat heats the liquid between the liquid inlet and the mixing outlet to vaporize the liquid through a heat source.

4. The steam supply device according to claim 3, characterized in that: The liquid is water, the temperature of the heat source when contacting the thermostat is greater than or equal to 100°C, and the temperature of the water flow supplied by the liquid supply device to the circulation loop is 80°C to 90°C.

5. The steam supply device according to claim 1, characterized in that: The steam supply device further comprises a liquid supply pipeline, one end of which is connected to the liquid supply equipment; The other end of the liquid supply pipeline is connected to the lower part of the gas-liquid separator; or, The other end of the liquid supply pipeline is connected to the liquid inlet; or, The steam supply device further comprises a condensation pipe, the liquid outlet is connected to the liquid inlet via the condensation pipe, and the other end of the liquid supply pipe is connected to the condensation pipe.

6. The steam supply device according to claim 1, characterized in that: The liquid supply equipment is a constant temperature water tank.

7. The steam supply device according to claim 1, characterized in that: The vapor supply device further includes a first check valve located outside the liquid outlet.

8. The steam supply device according to claim 1, characterized in that: The thermostat is a plate heat exchanger; and / or, The gas-liquid separator is a vertical steam-water separator.

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