Geothermal well high-temperature geothermal fluid sample water vapor separation device

Abstract

The utility model relates to the technical field of water-vapor separators, and provides a geothermal well high-temperature geothermal fluid sample water-vapor separation device which comprises a separation box. According to the utility model, geothermal fluid enters the inner cavity of the shell through the feeding pipe, after steam and associated gas in the geothermal fluid are in contact with the condensing pipe above the condensing plate, water vapor flows into the inner cavity of the collecting tank through the inclined condensing plate after being cooled and liquefied in a humid and hot manner, and the water is collected by the collecting tank and then is guided into the inner cavity of the liquid collecting pipe through the through groove; condensed water with low temperature is guided into the heat exchange pipe through the liquid collecting pipe, and high-temperature water vapor exchanges heat with geothermal tail water with low temperature through the heat exchange pipe, so that the geothermal tail water can be heated again in the recharging process, and the influence of the recharged geothermal tail water on geothermal energy storage due to low temperature is reduced; by means of the technical scheme, the problem that in the prior art, the temperature of geothermal tail water of a middle recharge well is usually too low is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water vapor separators, and in particular to a water vapor separation device for high-temperature geothermal fluid samples in a geothermal well. Background Art

[0002] Geothermal wells refer to methods and devices for generating electricity using geothermal energy at a depth of about 3,500 meters or hot spring water with a water temperature greater than 30°C. Geothermal energy is divided into three categories: high temperature, medium temperature and low temperature. Geothermal energy that exists in the form of steam at a temperature above 150°C is high-temperature geothermal energy; geothermal energy that exists in the form of a mixture of water and steam at a temperature between 90°C and 150°C is medium-temperature geothermal energy; and geothermal energy that exists in the form of warm water, warm water, hot water, etc. at a temperature above 25°C and below 90°C is low-temperature geothermal energy.

[0003] When geothermal wells are mined, a large amount of water vapor and some associated gases are generated, which wastes resources and pollutes the environment through direct discharge. In the geothermal well mining device in the prior art, it is necessary to separate the water vapor and the collected associated gases. In order to maintain the heat storage pressure and avoid thermal and chemical pollution caused by direct discharge of geothermal wastewater, the geothermal tail water after heat exchange needs to be reinjected. In the prior art, the geothermal tail water directly introduced into the reinjection well is usually too low in temperature, which will lead to a decrease in the heat storage of the geothermal well and an imbalance in the geothermal system, which may easily cause the geothermal field to no longer produce energy. To this end, the utility model provides a water vapor separation device for high-temperature geothermal fluid samples in a geothermal well to solve the above problems. Utility Model Content

[0004] The utility model provides a device for separating water vapor from high-temperature geothermal fluid samples in a geothermal well, which solves the problem in the related art that the temperature of geothermal tail water in a reinjection well is usually too low.

[0005] The technical solution of the utility model is as follows: A water vapor separation device for high-temperature geothermal fluid samples in a geothermal well, comprising a separation box, a liquid inlet pipe is fixedly installed on the upper front end of the separation box, a liquid outlet pipe is fixedly installed on the lower front end of the separation box, a feed pipe is fixedly installed on the left side of the separation box, and a gas storage assembly is arranged on the right side of the separation box, the separation box comprises an outer shell, a condensation plate is fixedly installed on the inner cavity side wall of the outer shell, a condensation tube is fixedly installed on the upper surface of the condensation plate, a liquid collection tube is fixedly installed on the lower end of the condensation plate, a heat exchange tube is fixedly installed on one end of the liquid collection tube, a connecting tube is fixedly installed on the lower end of the heat exchange tube, a conduit is fixedly installed on the lower end of the lowest connecting tube, a reinjection tube is fixedly installed on one end of the conduit, and the lower end of the reinjection tube extends to the outside of the outer shell and is fixedly connected to the surface of the outer shell.

[0006] Preferably, the liquid inlet of the uppermost condenser is connected to the surface of the liquid inlet tube, the liquid outlet of the lowermost condenser is connected to the surface of the liquid outlet tube, and the liquid inlet of the middle condenser is connected to the liquid outlet of the upper condenser.

[0007] Preferably, an air outlet is provided on the upper surface of the shell.

[0008] Preferably, the gas storage assembly includes an air storage pipe, a one-way valve is fixedly installed on the upper surface of the air storage pipe, an air guide pipe is fixedly installed on the upper end of the one-way valve, a fan is fixedly installed on one end of the air guide pipe, and the upper part of the fan is fixedly installed above the air outlet.

[0009] Preferably, the shell comprises a shell, a heat-insulating layer is fixedly mounted on the outer side of the shell, and a protective layer is fixedly mounted on the outer side of the heat-insulating layer.

[0010] Preferably, a collecting groove is provided on a lower side of the condensation plate, a through groove is provided at the bottom of the collecting groove, and the lower end of the through groove is arranged above the liquid collecting pipe.

[0011] Preferably, the lower end of the upper connecting tube is connected to the surface of the lower liquid collecting tube.

[0012] Preferably, the condensation plates are provided in several groups.

[0013] Preferably, the condensation plate is arranged at an angle.

[0014] Preferably, the condenser tube is laid in an S shape above the condenser plate.

[0015] The working principle and beneficial effects of the utility model are:

[0016] 1. In the utility model, geothermal fluid enters the inner cavity of the shell through the feed pipe. After the steam and associated gas in the geothermal fluid contact the condensing tube above the condensing plate, the water vapor is cooled and liquefied by wet heat and then flows into the inner cavity of the collecting tank through the inclined condensing plate. After the water is collected by the collecting tank, it is introduced into the inner cavity of the liquid collecting tube through the through groove. The water with a lower temperature after condensation is introduced into the heat exchange tube through the liquid collecting tube. The high-temperature water vapor will exchange heat with the geothermal tail water with a lower temperature through the heat exchange tube, so that the geothermal tail water can be reheated during the reinjection process, and finally flow into the reinjection tube through the conduit for reinjection, thereby reducing the impact of the reinjected geothermal tail water on geothermal energy storage due to the low temperature, which is beneficial to the sustainable development of geothermal wells. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the condensation plate and the condensation tube of the utility model;

[0021] Figure 4 This is a detailed structural diagram of the utility model at A;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the shell of the utility model.

[0023] In the figure: 1. separation box; 2. gas storage assembly; 3. feed pipe; 4. liquid outlet pipe; 5. liquid inlet pipe; 11. outer shell; 12. condensation plate; 13. condensation pipe; 14. heat exchange pipe; 15. liquid collection pipe; 16. connecting pipe; 17. conduit; 18. recharging pipe; 19. gas outlet; 21. gas storage pipe; 22. one-way valve; 23. gas guide pipe; 24. fan; 111. shell; 112. insulation layer; 113. protective layer; 121. collecting tank; 122. through tank. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] like Figure 1 to Figure 5As shown, this embodiment proposes a water vapor separation device for high-temperature geothermal fluid samples in a geothermal well, including a separation box 1, a liquid inlet pipe 5 is fixedly installed on the upper end of the front side of the separation box 1, a liquid outlet pipe 4 is fixedly installed on the lower end of the front side of the separation box 1, a feed pipe 3 is fixedly installed on the left side of the separation box 1, and a gas storage component 2 is arranged on the right side of the separation box 1. The separation box 1 includes an outer shell 11, a condensation plate 12 is fixedly installed on the inner cavity side wall of the outer shell 11, a condensation tube 13 is fixedly installed on the upper surface of the condensation plate 12, a liquid collection tube 15 is fixedly installed on the lower end of the condensation plate 12, a heat exchange tube 14 is fixedly installed on one end of the liquid collection tube 15, and a connecting tube 14 is fixedly installed on the lower end of the heat exchange tube 14 16, a conduit 17 is fixedly installed at the lower end of the lowest connecting tube 16, a recharging tube 18 is fixedly installed at one end of the conduit 17, the lower end of the recharging tube 18 extends to the outside of the shell 11 and is fixedly connected to the surface of the shell 11, the liquid inlet of the uppermost condenser tube 13 is connected to the surface of the liquid inlet tube 5, the liquid outlet of the lowermost condenser tube 13 is connected to the surface of the liquid outlet tube 4, the liquid inlet of the middle condenser tube 13 is connected to the liquid outlet of the upper condenser tube 13, the lower end of the upper connecting tube 16 is connected to the surface of the lower liquid collecting tube 15, a plurality of groups of condensation plates 12 are provided, the condensation plates 12 are inclined, and the condensation tubes 13 are laid in an S shape above the condensation plates 12.

[0027] In this embodiment, the geothermal fluid enters the inner cavity of the shell 11 through the feed pipe 3. After the steam and associated gas in the geothermal fluid contact the condenser 13 above the condenser plate 12, the water vapor is cooled and liquefied by the wet heat and flows into the inner cavity of the collecting tank 121 through the inclined condenser plate 12. After the water is collected by the collecting tank 121, it is introduced into the inner cavity of the liquid collecting pipe 15 through the through groove 122. The condensed water with a lower temperature is introduced into the heat exchange pipe 14 through the liquid collecting pipe 15. The high-temperature water vapor will exchange heat with the geothermal tail water with a lower temperature through the heat exchange pipe 14, so that the geothermal tail water is returned to the heat exchanger 14. During the injection process, the temperature can be raised again, and finally the water flows into the reinjection pipe 18 through the conduit 17 for reinjection, thereby reducing the impact of the reinjected geothermal tail water on geothermal energy storage due to its low temperature, which is beneficial to the sustainable development of geothermal wells. The geothermal tail water in the inner cavity of the heat exchange tube 14 is heat exchanged with water vapor to further improve the condensation efficiency of water vapor. Through the arrangement of the liquid collecting pipe 15, the heat exchange tube 14, the connecting pipe 16 and the conduit 17, the geothermal tail water can flow back to the inner cavity of the reinjection pipe 18 by gravity, and the condensed water enters the inner cavity of the condensation tube 13 through the liquid inlet pipe 5 and is discharged through the liquid outlet pipe 4.

[0028] Example 2

[0029] like Figure 1 to Figure 5As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that an air outlet 19 is provided on the upper surface of the shell 11, the air storage assembly 2 includes an air storage pipe 21, a one-way valve 22 is fixedly installed on the upper surface of the air storage pipe 21, an air guide pipe 23 is fixedly installed on the upper end of the one-way valve 22, a fan 24 is fixedly installed at one end of the air guide pipe 23, and the upper part of the fan 24 is fixedly installed above the air outlet 19, the shell 11 includes a shell 111, an insulating layer 112 is fixedly installed on the outer side of the shell 111, a protective layer 113 is fixedly installed on the outer side of the insulating layer 112, a collecting groove 121 is provided on the lower side of the condensation plate 12, a through groove 122 is provided at the bottom of the collecting groove 121, and the lower end of the through groove 122 is arranged above the liquid collecting pipe 15.

[0030] In this embodiment, the gas is discharged through the setting of the gas outlet 19, the associated gas is collected through the gas storage pipe 21, and the associated gas is blown into the interior of the air guide pipe 23 by the fan 24 set above the gas outlet 19, and introduced into the inner cavity of the gas storage pipe 21 through the one-way valve 22. The one-way valve 22 is used to prevent the gas in the inner cavity of the gas storage pipe 21 from flowing back, the thermal insulation effect of the outer shell 11 is improved by the setting of the thermal insulation layer 112, and the thermal insulation layer 112 and the shell 111 are protected by the setting of the protective layer 113.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for separating water vapor from high-temperature geothermal fluid samples in a geothermal well, characterized in that: It comprises a separation box (1), a liquid inlet pipe (5) is fixedly mounted on the upper front end of the separation box (1), a liquid outlet pipe (4) is fixedly mounted on the lower front end of the separation box (1), a feed pipe (3) is fixedly mounted on the left side of the separation box (1), and a gas storage assembly (2) is arranged on the right side of the separation box (1); The separation box (1) comprises an outer shell (11), a condensation plate (12) is fixedly mounted on the inner cavity side wall of the outer shell (11), a condensation tube (13) is fixedly mounted on the upper surface of the condensation plate (12), a liquid collection tube (15) is fixedly mounted on the lower end of the condensation plate (12), a heat exchange tube (14) is fixedly mounted on one end of the liquid collection tube (15), a connecting tube (16) is fixedly mounted on the lower end of the heat exchange tube (14), a conduit (17) is fixedly mounted on the lower end of the lowest connecting tube (16), a recharging tube (18) is fixedly mounted on one end of the conduit (17), and the lower end of the recharging tube (18) extends to the outside of the outer shell (11) and is fixedly connected to the surface of the outer shell (11).

2. The device for separating water vapor from high-temperature geothermal fluid samples of a geothermal well according to claim 1, characterized in that: The liquid inlet of the uppermost condenser tube (13) is connected to the surface of the liquid inlet tube (5), the liquid outlet of the lowermost condenser tube (13) is connected to the surface of the liquid outlet tube (4), and the liquid inlet of the middle condenser tube (13) is connected to the liquid outlet of the upper condenser tube (13).

3. The device for separating water vapor from high-temperature geothermal fluid samples of a geothermal well according to claim 1, characterized in that: An air outlet (19) is provided on the upper surface of the housing (11).

4. The device for separating water vapor from high-temperature geothermal fluid samples of a geothermal well according to claim 3, characterized in that: The gas storage assembly (2) comprises a gas storage pipe (21), a one-way valve (22) being fixedly mounted on the upper surface of the gas storage pipe (21), an air guide pipe (23) being fixedly mounted on the upper end of the one-way valve (22), a fan (24) being fixedly mounted on one end of the air guide pipe (23), and the upper part of the fan (24) being fixedly mounted above the gas outlet (19).

5. The device for separating water vapor from high-temperature geothermal fluid samples of a geothermal well according to claim 1, characterized in that: The housing (11) comprises a shell (111), a heat-insulating layer (112) is fixedly mounted on the outer side of the shell (111), and a protective layer (113) is fixedly mounted on the outer side of the heat-insulating layer (112).

6. The device for separating water vapor from high-temperature geothermal fluid samples of a geothermal well according to claim 1, characterized in that: A collecting groove (121) is provided on the lower side of the condensation plate (12), a through groove (122) is provided at the bottom of the collecting groove (121), and the lower end of the through groove (122) is arranged above the liquid collecting pipe (15).

7. The device for separating water vapor from high-temperature geothermal fluid samples of a geothermal well according to claim 1, characterized in that: The lower end of the upper connecting tube (16) is connected to the surface of the lower liquid collecting tube (15).

8. The device for separating water vapor from high-temperature geothermal fluid samples of a geothermal well according to claim 1, characterized in that: The condensation plates (12) are arranged in a plurality of groups.

9. The device for separating water vapor from high-temperature geothermal fluid samples of a geothermal well according to claim 1, characterized in that: The condensation plate (12) is arranged in an inclined manner.

10. The device for separating water vapor from high-temperature geothermal fluid samples of a geothermal well according to claim 1, characterized in that: The condensation pipe (13) is laid in an S shape above the condensation plate (12).

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