Compressed air energy storage artificial chamber gas storage temperature control device

Abstract

The invention provides a compressed air energy storage artificial chamber gas storage temperature control device, and belongs to the technical field of gas storage temperature control, the compressed air energy storage artificial chamber gas storage temperature control device comprises a cooling tower, the cooling tower is installed outside an artificial chamber gas storage, cooling water is contained in the cooling tower, the cooling water in the cooling tower is connected with an atomization nozzle through a spraying pipe, and a position adjusting gear is arranged on the atomization nozzle; one side of the position adjusting gear is installed in the driving plate, the driving plate is installed on the outer side wall of the chamber and arranged in the operation direction of the atomizing nozzle, the rotating toothed chain is used for driving the position adjusting gear to rotate, so that the position of the atomizing nozzle in the driving plate is adjusted, and after the position is fixed, the position adjusting gear is in sliding connection with the atomizing nozzle. And the atomizing nozzle can rotate around the position adjusting gear to perform rotary spraying cooling, so that the temperature rise of the artificial chamber gas storage is controlled.

Description

Technical Field

[0001] The invention belongs to the technical field of gas storage temperature control and relates to a temperature control device for a compressed air energy storage artificial chamber gas storage. Background Art

[0002] The temperature state of compressed air in underground gas storage during operation plays a decisive role in the performance and durability of the gas storage sealing layer material. Studies have shown that during the inflation process of underground gas storage, the air in the chamber far away from the air inlet may cause a significant temperature rise after the air inside the chamber rises from a low pressure state to a high pressure state due to poor fluidity and poor thermal conductivity of air temperature. For long tunnel cave gas storage, the temperature of compressed air in the chamber can exceed 300°C. At the same time, the air temperature distribution in the gas storage chamber will also show extremely uneven distribution characteristics. Under the condition of gas storage degassing and power generation, the compressed air in the gas storage needs to be throttled and depressurized to enter the air turbine. In this process, a large amount of heat energy loss will be generated, and the temperature in the gas storage will be reduced, and even a negative temperature state (less than 0°C) will occur, which will have adverse effects such as ice expansion stress on the sealing structure.

[0003] Under existing technical conditions, the temperature control in the underground gas storage chamber mainly adopts various heat exchange measures or measures to promote the mixing of hot and cold air in the chamber to reduce the temperature increase caused by inflation.

[0004] For example, Chinese invention patent CN110884821A discloses an underground gas storage with heat storage temperature control function, which uses the heat exchange unit of the heat storage wall to absorb or release heat energy, thereby realizing the temperature control of the compressed air in the underground gas storage, which can reduce the amount of heat energy loss to a certain extent. However, the setting of the heat storage wall in the solution provided by the invention will affect the storage capacity of the gas storage on the one hand, and on the other hand, its own structural reliability is difficult to guarantee in a high temperature and high humidity environment. The utility model patent CN212319398U discloses an underground gas storage, which uses multiple air inlets arranged on the charging and discharging pipelines to improve the air flow state in the gas storage, so as to eliminate the problems of uneven air distribution and local high temperature of compressed air in the gas storage due to poor air fluidity. However, this solution requires the arrangement of a large number of gas transmission pipelines in the gas storage, and needs to be fixed on the inner wall of the gas storage chamber. The pipeline will inevitably vibrate during operation, and the vibration will be transmitted to the pipeline support fixed on the cave wall. Under long-term operation conditions, the vibration of the support will cause the sealing layer at the support to be damaged, causing high-pressure gas leakage. In addition, for tunnel-type chamber gas storage with a volume of more than 100,000 cubic meters, its length is generally more than 1 km, and for gas storage with a larger storage capacity, its length is even several kilometers. Therefore, the temperature control solution of arranging multiple gas filling ports requires the addition of a very long gas transmission steel pipe, which is also expensive. Summary of the invention

[0005] In order to solve the technical problems existing in the above-mentioned background technology, the present invention provides a temperature control device for a compressed air energy storage artificial cavern gas storage reservoir, comprising: a cooling tower, the cooling tower is installed outside the artificial cavern gas storage reservoir, and cooling water is contained inside. The cooling water in the cooling tower is connected to an atomizing nozzle through a spray pipe. A position adjustment gear is arranged on the atomizing nozzle, and one side of the position adjustment gear is installed in a driving plate. The driving plate is installed in the outer wall of the cavern and arranged along the running direction of the atomizing nozzle. The position adjustment gear is driven to rotate by a rotating tooth chain, so as to adjust the position of the atomizing nozzle in the driving plate. When the position is fixed, the position adjustment gear is slidably connected to the atomizing nozzle, and the atomizing nozzle can rotate around the position adjustment gear to perform rotational spray cooling.

[0006] Among them, there is a chamber inside the artificial chamber gas storage reservoir, one end of the gas injection and production pipeline is located outside the artificial chamber gas storage reservoir and connected to the ground engineering part, and the other end passes through the artificial chamber gas storage reservoir into the chamber and is provided with a gas injection port.

[0007] Furthermore, the atomizing nozzle includes a spring tube, an annular groove, an adjusting ring, a sub-gear, a rotating tooth chain, a mounting ring and a limiting ring. The spring tube is sleeved on the driving rod. An annular groove is provided in the spring tube. An annular piston is fitted on the inner wall of the annular groove. One end of the annular piston is connected to the adjusting ring through a bearing. One end of the adjusting ring penetrates the spring tube. The outer wall of the adjusting ring is sleeved on the sub-gear. One end of the adjusting ring is connected to the rotating tooth chain. One end of the rotating tooth chain is connected to the mounting ring. The outer wall of one end of the mounting ring is sleeved on the limiting ring through the bearing. The atomizing nozzle is symmetrically sleeved on At both ends of the driving rod, two spring tubes are fixed on the plates at both ends of the gas storage reservoir through brackets, and the opposite ends of the two spring tubes are connected to the air pump through air pipes, the sub-gear is movably engaged with the tooth grooves at the inner end of the rotating tooth chain, the limit ring is movably pressed with the side end of the rotating tooth chain, and the outer side of the mounting ring is sleeved with a position adjustment gear, which is engaged with the rack inside the driving plate. By setting an atomizing nozzle, the winding motor can drive the rotating tooth chain to rotate, thereby driving the closed film layer to turn over, realizing the replacement of the inside and outside, facilitating the turning over and drying of the closed film layer, and increasing the service life.

[0008] The beneficial effects of the present invention are: The present invention adopts a temperature control device for a compressed air energy storage artificial cavern gas storage reservoir, comprising: a cooling tower, cooling water in the cooling tower is connected to an atomizing nozzle through a spray pipe, a position adjustment gear is arranged on the atomizing nozzle, the position adjustment gear is installed in a driving plate, a rotating tooth chain is used to drive the position adjustment gear to rotate, thereby adjusting the position of the atomizing nozzle in the driving plate, when the position is fixed, the position adjustment gear is slidably connected to the atomizing nozzle, the atomizing nozzle can rotate around the position adjustment gear, and perform rotation spray cooling; so that the atomizing nozzle can cover a larger area, saving the installation of the spray The number of sprinkler pipes, one atomizing nozzle can cover a large area, reducing maintenance costs, and using cooling water atomizing spray and cooling water forced heat exchange to cool the air in the artificial cavern gas storage reservoir can reduce the air temperature rise during the gas storage process and ensure the sealing and stability of the gas storage reservoir; using multiple temperature and pressure measuring points, spray water, and cooling water flow measuring points can collect and analyze the temperature and pressure values ​​in the artificial cavern gas storage reservoir in real time, and dynamically adjust the spray water volume and cooling water volume according to the temperature rise rate of the gas storage process, thereby controlling the temperature rise of the artificial cavern gas storage reservoir.

[0009] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0011] Figure 1 It is a schematic diagram of the installation of a temperature control device for a compressed air energy storage artificial cavern gas storage reservoir of the present invention; Figure 2 It is a structural schematic diagram of a temperature control device for a compressed air energy storage artificial cavern gas storage reservoir of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the structure of the middle B area; Among them: 1. Artificial chamber gas storage; 2. Temperature control device; 221. Atomizing spray water supply pipe; 261. Drive shaft; 271. Spring tube; 272. Annular groove; 273. Adjustment ring; 274. Sub-gear; 275. Rotating gear chain; 276. Mounting ring; 2761. Position adjustment gear; 277. Limiting ring. DETAILED DESCRIPTION

[0012] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0013] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this embodiment have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0014] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0015] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention and should not be understood as limitations on the present invention.

[0016] In the present invention, terms such as "fixed connection", "connected", "connection", etc. should be understood in a broad sense, indicating that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. Relevant scientific research or technical personnel in this field can determine the specific meanings of the above terms in the present invention according to specific circumstances, and they should not be understood as limiting the present invention.

[0017] Embodiment 1, as Figure 1 As shown, this embodiment provides a temperature control device 2 for a compressed air energy storage artificial cavern gas storage reservoir, comprising: a cooling tower, which is installed outside the artificial cavern gas storage reservoir 1 and contains cooling water inside. The cooling water in the cooling tower is connected to the atomizing nozzle through a spray pipe. A position adjustment gear is arranged on the atomizing nozzle, one side of the position adjustment gear is installed in a driving plate, and the driving plate is installed on the outer wall of the cavern and arranged along the running direction of the atomizing nozzle. The position adjustment gear is driven to rotate by a rotating tooth chain, so as to adjust the position of the atomizing nozzle in the driving plate. When the position is fixed, the position adjustment gear is slidably connected to the atomizing nozzle, and the atomizing nozzle can rotate around the position adjustment gear to perform rotational spray cooling; The atomizing nozzle comprises a spring tube 271, an annular groove 272, an adjusting ring 273, a sub-gear 274, a rotating tooth chain 275, a mounting ring 276 and a limiting ring 277. The spring tube 271 is sleeved on the driving rod. An annular groove 272 is provided in the spring tube 271. An annular piston is fitted on the inner wall of the annular groove 272. One end of the annular piston is connected to the adjusting ring 273 through a bearing. One end of the adjusting ring 273 penetrates the spring tube 271. The outer wall of the adjusting ring 273 is sleeved on the sub-gear 274. One end of the sub-gear 274 is connected to the rotating tooth chain 275. A limiting ring 277 is provided on one side of the rotating tooth chain 275. The outer wall of one end of the mounting ring 276 is sleeved on the limiting ring 277 through a bearing. The atomizing nozzle is symmetrically sleeved on both ends of the driving rod, and two spring tubes 271 are fixed on the plates at both ends of the gas storage reservoir through brackets. The two spring tubes The opposite end of 271 is connected to the air pump through an air pipe, the sub-gear 274 is movably meshed with the tooth groove at the inner end of the rotating tooth chain, the limit ring 277 is movably pressed with the side end of the rotating tooth chain, and the outer side of the mounting ring 276 is sleeved with a position adjustment gear 2761, which is meshed with the rack in the driving plate. By setting the rotating tooth chain, the winding motor can not only drive the atomizing nozzle to rotate, effectively improve the uniformity of the spraying area, avoid the uneven spraying area due to blockage, and increase the service life, but also by utilizing the tooth groove matching relationship on the atomizing nozzle, the position of the atomizing nozzle can be adjusted by using the rotating tooth chain, so that the position of the atomizing nozzle can be moved along the direction of the rotating tooth chain, and the spraying area of ​​the atomizing nozzle is adjusted, so that the atomizing nozzle can cover a larger area, saving the number of spray pipes, and one atomizing nozzle can cover a large area, reducing maintenance costs. The specific position adjustment gear 2761 is connected to the mounting ring by an electromagnetic switch. When the electromagnetic switch is turned on, a fixed connection is formed. When the electromagnetic switch is closed, it is slidably connected to the mounting ring and can rotate relative to the mounting ring. The electromagnetic switch can adopt the D-M9N model.

[0018] One side of the rotating toothed chain (275) is arranged in cooperation with the atomizing nozzle, and the other side is arranged in cooperation with the driving shaft, the driving shaft is connected to the motor shaft, and a limiting wheel is arranged along the moving direction of the rotating toothed chain (275), the limiting wheel having a groove, and the groove can be engaged with the outer side surface of the rotating toothed chain (275) without affecting the inner side surface area of ​​the rotating toothed chain (275), thereby ensuring that the running route of the atomizing nozzle is unobstructed.

[0019] The artificial chamber gas storage reservoir 1 is also equipped with multiple sets of parallel running coolers located in the chamber. The bottom side of the cooling tower pool is connected to the cooler water inlet through a cooling water supply pipe, and the top side of the cooling tower pool is connected to the cooler return port through a cooling water return pipe.

[0020] One end of the atomizing spray water supply pipe 221 and the cooling water supply pipe are connected to the bottom side of the cooling tower pool through the main water supply pipe, and the other end passes through the injection and production gas pipeline outside the cavern, enters the injection and production gas pipeline, passes out from the injection and production gas pipeline inside the cavern, and extends into the cavern; one end of the sump return pipe and the cooling water return pipe are connected to the top side of the cooling tower pool, and the other end passes through the injection and production gas pipeline outside the cavern, enters the injection and production gas pipeline, passes out from the injection and production gas pipeline inside the cavern, and extends into the cavern.

[0021] A sump is arranged at the bottom of the chamber of the artificial chamber gas storage reservoir 1, and the top side of the cooling tower pool is connected to the sump through a sump return pipe; there is a chamber inside the artificial chamber gas storage reservoir 1, one end of the gas injection and production pipeline is located outside the artificial chamber gas storage reservoir 1 and connected to the ground engineering part, and the other end passes through the artificial chamber gas storage reservoir 1 and enters the chamber and is provided with a gas injection port.

[0022] The atomizing spray water supply pipe 221 is provided with a spray water supply pump, the sump return pipe is provided with a sump return pump, and the cooling water supply pipe is provided with a cooling water pump; the spray pipe has a set length and can be adjusted in position along the rotating toothed chain.

[0023] The artificial chamber gas storage reservoir 1 is also equipped with a temperature control system, which includes temperature and pressure measuring points, spray water flow measuring points, cooling water flow measuring points and data acquisition and control devices. Multiple temperature and pressure measuring points are arranged at intervals on the inner wall of the chamber along the height direction, the spray water flow measuring point is arranged on the outlet pipeline of the spray water supply pump, the spray water flow measuring point is located outside the chamber, the cooling water flow measuring point is arranged on the outlet pipeline of the cooling water pump, and the cooling water flow measuring point is located outside the chamber. The temperature and pressure measuring points, the spray water flow measuring points, and the cooling water flow measuring points collect and detect data in real time and upload them to the data acquisition and control device.

[0024] The air in the artificial chamber gas storage reservoir 1 is cooled by cooling water atomization spray and cooling water forced heat exchange, which can reduce the air temperature rise during the gas storage process and ensure the sealing and stability of the gas storage reservoir. According to calculations, if the gas storage pressure of 100,000 cubic meters of artificial chamber gas storage reservoir 1 is pressurized from 10MPa to 18MPa within 6 hours, the temperature rise of the artificial chamber gas storage reservoir 1 exceeds 35°C. When the spraying water volume is 0.9t / h and the cooling water volume is greater than 1300t / h, the temperature rise of the artificial chamber gas storage reservoir 1 is about 8°C.

[0025] By adopting multiple temperature and pressure measuring points, spray water, and cooling water flow measuring points, the temperature and pressure values ​​in the artificial chamber gas storage reservoir 1 can be collected and analyzed in real time, and the spray water volume and cooling water volume can be dynamically adjusted according to the temperature rise rate of the gas storage process, thereby controlling the temperature rise of the artificial chamber gas storage reservoir.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A temperature control device for a compressed air energy storage artificial chamber gas storage, characterized in that: include: A cooling tower is installed outside an artificial cavern gas storage reservoir (1) and contains cooling water. The cooling water in the cooling tower is connected to an atomizing nozzle through a spray pipe. A position adjustment gear and a rotating toothed chain (275) are arranged on the atomizing nozzle. One side of the position adjustment gear is installed in a driving plate. The driving plate is installed on the outer wall of the cavern. The driving plate is arranged along the running direction of the atomizing nozzle. The rotating toothed chain (275) is used to drive the position adjustment gear to rotate, thereby adjusting the position of the atomizing nozzle in the driving plate. When the position of the atomizing nozzle is fixed, the position adjustment gear is slidably connected to the atomizing nozzle, and the atomizing nozzle can rotate around the position adjustment gear to realize the self-rotation spray cooling of the atomizing nozzle.

2. A temperature control device for a compressed air energy storage artificial chamber gas storage reservoir as claimed in claim 1, characterized in that: The atomizing nozzle comprises a spring tube (271), an annular groove (272), an adjusting ring (273), a secondary gear (274), a rotating toothed chain (275), a mounting ring (276) and a limiting ring (277); the spring tube (271) is sleeved on the driving rod; an annular groove (272) is provided in the spring tube (271); an annular piston is fitted on the inner wall of the annular groove (272); one end of the annular piston is connected to the adjusting ring (273) via a bearing; one end of the adjusting ring (273) penetrates the spring tube (271).

3. A temperature control device for a compressed air energy storage artificial chamber gas storage reservoir as claimed in claim 2, characterized in that: The outer wall of the adjusting ring (273) is sleeved with the secondary gear (274), one end of the secondary gear (274) is butted with a rotating toothed chain (275), and a limiting ring (277) is arranged on one side of the rotating toothed chain (275); the outer wall of one end of the mounting ring (276) is sleeved with the limiting ring (277) through a bearing, the other side of the rotating toothed chain (275) cooperates with the driving shaft (261), the driving shaft (261) is connected to the motor shaft, and the two spring tubes (271) are fixed on the two end plates of the gas storage reservoir through brackets, the opposite ends of the two spring tubes (271) are connected to the air pump through air pipes, the secondary gear (274) is movably meshed with the inner end tooth groove of the rotating toothed chain (275), and the limiting ring (277) is movably pressed with the side end of the rotating toothed chain (275).

4. A temperature control device for a compressed air energy storage artificial chamber gas storage reservoir as claimed in claim 3, characterized in that: The outer side of the mounting ring (276) is sleeved with a position adjustment gear (2761), and the position adjustment gear (2761) is meshed with the rack inside the driving plate.

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