Novel zero-carbon environment-friendly compressed air sealing energy storage device

Abstract

The utility model discloses a novel zero-carbon environment-friendly compressed air sealing energy storage device which comprises a natural rock body and a reinforced concrete layer, a pair of circular rings is fixedly connected to the inner wall of the reinforced concrete layer, and fluoroplastic energy storage sealing devices are installed on the inner walls of the left circular ring and the right circular ring. The utility model relates to the field of fluoroplastic film materials and novel energy storage technologies, and relates to the technical field of fluoroplastic film materials and novel energy storage, conventional compressed air energy storage needs to utilize rock caves, salt caves or abandoned mines and the like, energy storage mechanisms are installed on the left side and the right side of the fluoroplastic energy storage sealing device, and the energy storage mechanism is installed on the outer wall of the middle of the fluoroplastic energy storage sealing device. A large amount of gas is absorbed by the underground rock mass, the efficiency of the energy storage system is greatly reduced and is generally only 40-45%, the fluoroplastic energy storage sealing device is adopted and basically does not depend on geological conditions any more, the air tightness of the storage space can be greatly improved, the efficiency of the system is improved, and the application scene of compressed air energy storage is expanded.

Description

Technical Field

[0001] The utility model relates to the field of fluoroplastic film materials and novel energy storage technologies, in particular to a novel zero-carbon and environmentally friendly compressed air sealed energy storage device. Background Art

[0002] At present, the country is actively promoting the development of clean energy, and photovoltaic and wind power generation are already very common. However, a large amount of clean energy cannot play its due role due to the limitations of weather conditions. Conventional fossil material energy storage has the problems of low energy density, severe attenuation with increasing use time, and high price. At the same time, the production and recycling links will cause secondary pollution to the environment. How to store a large amount of clean energy and make it play its due role, the new compressed air energy storage has become a priority option. In view of the relevant technical problems, especially how to store compressed air and reduce gas leakage as much as possible, thereby improving power generation efficiency and increasing the utilization rate of new energy, is a problem that needs to be solved urgently. In view of this, the present application proposes a new zero-carbon and environmentally friendly compressed air sealed energy storage device to solve such problems. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the utility model provides a new type of zero-carbon and environmentally friendly compressed air sealed energy storage device, which solves the problems of low energy density of clean energy storage in the existing technology, serious attenuation with increasing usage time, high price, and secondary pollution to the environment in the production and recycling links.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a new type of zero-carbon environmentally friendly compressed air sealed energy storage device, including a natural rock mass and a reinforced concrete layer, the inner wall of the natural rock mass is fixedly connected to the reinforced concrete layer, the inner wall of the reinforced concrete layer is fixedly connected to a pair of circular rings, and the inner walls of the left and right circular rings are installed with fluoroplastic energy storage sealing devices, the left and right sides of the fluoroplastic energy storage sealing device are installed with energy storage mechanisms, and the middle outer wall of the fluoroplastic energy storage sealing device is installed with a connecting mechanism.

[0005] Preferably, the energy storage mechanism includes a high-pressure air inlet and a high-pressure air exhaust port respectively fixed to the lower left and right sides of the fluoroplastic energy storage sealing device, and the outer sides of the high-pressure air inlet and the high-pressure air exhaust port are fixed with stainless steel flanges, and the outer sides of the left and right stainless steel flanges are respectively fixed with high-pressure air intake pipes and high-pressure air exhaust pipes, and the outer walls of the high-pressure air intake pipe and the high-pressure air exhaust pipe are respectively matched with the inner wall gap of the opening of the reinforced concrete layer and the through hole of the natural rock mass.

[0006] Preferably, a plurality of sensors are fixedly connected to the inner wall and the outer wall at both ends of the left and right ends of the fluoroplastic energy storage sealing device, and the outer wall of the outer sensor is in contact with the inner wall of the circular ring.

[0007] Preferably, control cabinets are fixedly connected to the lower inner walls on the left and right sides of the reinforced concrete layer.

[0008] Preferably, the connecting mechanism comprises a protective sleeve sleeved on the middle outer wall of the fluoroplastic energy storage sealing device, and the outer wall of the protective sleeve is in contact with the inner wall of the reinforced concrete layer, and the interior of the protective sleeve is filled with a sponge pad.

[0009] Preferably, an openable inspection port is fixedly connected to the lower left side of the fluoroplastic energy storage sealing device.

[0010] Beneficial Effects

[0011] The utility model provides a new type of zero-carbon environmentally friendly compressed air sealed energy storage device, which has the following beneficial effects:

[0012] Conventional compressed air energy storage requires the use of rock caves, salt caves or abandoned mines. A large amount of gas is absorbed by the underground rock, which greatly reduces the efficiency of the energy storage system, usually only 40-45%. The use of fluoroplastic energy storage sealing devices is basically no longer dependent on geological conditions. It can not only greatly improve the airtightness of the storage space and improve the efficiency of the system, but also expand the application scenarios of compressed air energy storage.

[0013] Conventional tank energy storage not only has a relatively high cost, but also has relatively high operation and maintenance costs, which makes it unsuitable for high-power applications. The use of fluoroplastic energy storage sealing devices can reduce the overall cost while realizing low-cost, high-power energy storage application scenarios of over 100 megawatts.

[0014] The use of fluoroplastic energy storage sealing devices is not only safe and reliable, but also has a long energy storage time and a service life of up to 30-50 years. The operation and maintenance cost is very low, and it can achieve fully automatic monitoring and control in conjunction with sensors and control cabinets.

[0015] The pressure of conventional tank energy storage is generally between 5-10MPa, and the pressure of conventional mine and salt cave energy storage is also within 10MPa. The characteristics of fluoroplastic energy storage sealing device materials can achieve stable operation under a pressure of 200MPa, with better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a partially enlarged schematic diagram of the utility model.

[0018] Figure 3 It is a partially enlarged schematic diagram of the utility model.

[0019] Figure 4 It is a partial side view of the utility model.

[0020] In the figure: 1. Natural rock mass; 2. Reinforced concrete layer; 3. Circular ring; 4. Fluoroplastic energy storage sealing device; 5. High-pressure air inlet; 6. High-pressure air exhaust port; 7. Stainless steel flange; 8. High-pressure air inlet pipe; 9. High-pressure air exhaust pipe; 10. Sensor; 11. Control cabinet; 12. Protective cover; 13. Sponge pad; 14. Openable inspection port. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in 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 in 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.

[0022] See also Figure 1-4 The utility model provides a technical solution: a new type of zero-carbon environmentally friendly compressed air sealed energy storage device, comprising a natural rock mass 1 and a reinforced concrete layer 2, the inner wall of the natural rock mass 1 is fixedly connected with the reinforced concrete layer 2, the inner wall of the reinforced concrete layer 2 is fixedly connected with a pair of circular rings 3, the inner walls of the left and right circular rings 3 are installed with fluoroplastic energy storage sealing devices 4, the left and right sides of the fluoroplastic energy storage sealing device 4 are installed with energy storage mechanisms, and the middle outer wall of the fluoroplastic energy storage sealing device 4 is installed with a connecting mechanism;

[0023] A fluoroplastic energy storage sealing device 4 can be installed on the inner wall of the circular ring 3. The fluoroplastic energy storage sealing device 4 is made of fluoroplastic film (ETFE / ECTFE, etc.). The fluoroplastic film material is dense, high temperature resistant, aging resistant, easy to process, and easy to transport. While increasing the sealing of the cave, the overall cost is reduced, so that compressed air energy storage is no longer dependent on existing geological conditions such as mines and salt caves, and the application scenarios of compressed air energy storage are expanded. At the same time, the fluoroplastic energy storage sealing device is made of multiple fluoroplastic films that are spliced ​​and processed by heat sealing and ETFE tape to strengthen the sealing.

[0024] The present embodiment is further configured such that the energy storage mechanism comprises a high-pressure air inlet 5 and a high-pressure air exhaust port 6 respectively fixed to the lower left and right sides of the fluoroplastic energy storage sealing device 4, and the outer sides of the high-pressure air inlet 5 and the high-pressure air exhaust port 6 are fixedly connected with a stainless steel flange 7, and the outer sides of the left and right stainless steel flanges 7 are respectively fixedly connected with a high-pressure air inlet pipe 8 and a high-pressure air exhaust pipe 9, and the outer walls of the high-pressure air inlet pipe 8 and the high-pressure air exhaust pipe 9 are respectively matched with the inner wall gap of the opening of the reinforced concrete layer 2 and the through hole of the natural rock mass 1;

[0025] Openings can be machined on the left and right sides of the reinforced concrete layer 2, and two through holes can be machined inside the natural rock mass 1, so that it is convenient to arrange the high-pressure air intake pipe 8 and the high-pressure air exhaust pipe 9.

[0026] This embodiment is further configured such that a plurality of sensors 10 are fixedly connected to the inner and outer walls of the left and right ends of the fluoroplastic energy storage sealing device 4, and the outer wall of the outer sensor 10 is in contact with the inner wall of the circular ring 3;

[0027] A plurality of sensors 10 may be fixedly connected to the inner wall and the outer wall at both ends of the fluoroplastic energy storage sealing device 4. The sensors 10 are designed to monitor pressure and temperature, so that the temperature and pressure changes of the device can be monitored at any time. When the internal pressure of a fluoroplastic energy storage sealing device 4 reaches the set pressure (usually 200 MPa), the energy storage ends, and then the next fluoroplastic energy storage sealing device 4 is inflated and energy is stored, and the cycle is repeated.

[0028] This embodiment is further configured such that control cabinets 11 are fixedly connected to the lower inner walls on the left and right sides of the reinforced concrete layer 2 .

[0029] This embodiment is further configured such that the connection mechanism includes a protective sleeve 12 sleeved on the middle outer wall of the fluoroplastic energy storage sealing device 4, and the outer wall of the protective sleeve 12 is in contact with the inner wall of the reinforced concrete layer 2, and the interior of the protective sleeve 12 is filled with a sponge pad 13;

[0030] A protective sleeve 12 can be set on the middle outer wall of the fluoroplastic energy storage sealing device 4. The material of the protective sleeve 12 is also fluoroplastic film, and a sponge pad 13 is filled inside the protective sleeve 12. In this way, the fluoroplastic energy storage sealing device 4 can be protected to prevent it from being scratched and leaking.

[0031] The present embodiment is further configured such that an openable inspection port 14 is fixedly connected to the lower left side of the fluoroplastic energy storage sealing device 4 .

[0032] It is worth noting that the models of the electrical structures involved in this application can be selected according to user needs, and only need to meet the use requirements of this application. At the same time, the corresponding control circuits are all existing technologies and can be fully implemented by personnel in this field, so no further details will be given.

[0033] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the field. The following mainly introduces the working principle and process.

[0034] Embodiment: When it is necessary to use this device, a reinforced concrete layer 2 can be set in the natural rock mass 1, a pair of circular rings 3 can be set in the reinforced concrete layer 2, and a fluoroplastic energy storage sealing device 4 can be installed in the circular rings 3, so that the fluoroplastic energy storage sealing device 4 can be blocked by the circular rings 3, and at the same time, a protective sleeve 12 is set on the outer wall of the fluoroplastic energy storage sealing device 4, and a sponge pad 13 is set inside the protective sleeve 12, so that the fluoroplastic energy storage sealing device 4 can be protected by the sponge pad 13 and the protective sleeve 12 in conjunction with the circular ring 3, and then the other end of the high-pressure air intake pipe 8 is connected to the air compressor unit and the power distribution control system, and the other end of the high-pressure air exhaust pipe 9 is connected to the control system, the generator set and the end user, so that during the day, solar photovoltaic or wind power generation generates excess electricity, and the excess electricity is discharged. The compressed air is compressed by the air compressor unit, and then discharged into the high-pressure air inlet 5 through the high-pressure air intake pipe 8, and finally enters the fluoroplastic energy storage sealing device 4 for energy storage. When solar photovoltaic or wind power generation is insufficient at night, the high-pressure air is discharged through the high-pressure air exhaust port 6 and the high-pressure air exhaust pipe 9, reaches the generator set for power generation and is transmitted to the end user. The whole process is controlled by the control cabinet 11, and the temperature and pressure inside and outside the fluoroplastic energy storage sealing device 4 are monitored in real time by the sensor 10 to achieve a continuous and stable power supply. This not only improves the storage energy density, but also has limited attenuation with the increase of usage time, and the price cost is low. At the same time, the production and recycling links will not cause secondary pollution to the environment, and are zero-carbon and environmentally friendly, thereby improving the power generation efficiency and increasing the utilization rate of new energy.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel zero-carbon environmentally friendly compressed air sealed energy storage device, comprising a natural rock mass (1) and a reinforced concrete layer (2), wherein the inner wall of the natural rock mass (1) is fixedly connected with the reinforced concrete layer (2), characterized in that: A pair of circular rings (3) are fixedly connected to the inner wall of the reinforced concrete layer (2); fluoroplastic energy storage sealing devices (4) are installed on the inner walls of the left and right circular rings (3); energy storage mechanisms are installed on the left and right sides of the fluoroplastic energy storage sealing device (4); and a connecting mechanism is installed on the middle outer wall of the fluoroplastic energy storage sealing device (4).

2. A novel zero-carbon and environmentally friendly compressed air sealed energy storage device according to claim 1, characterized in that: The energy storage mechanism comprises a high-pressure air inlet (5) and a high-pressure air exhaust (6) respectively fixed to the lower left and right sides of the fluoroplastic energy storage sealing device (4), and the outer sides of the high-pressure air inlet (5) and the high-pressure air exhaust (6) are both fixedly connected to stainless steel flanges (7), and the outer sides of the left and right stainless steel flanges (7) are respectively fixedly connected to high-pressure air inlet pipes (8) and high-pressure air exhaust pipes (9), and the outer walls of the high-pressure air inlet pipes (8) and the high-pressure air exhaust pipes (9) are respectively matched with the inner wall gaps of the opening of the reinforced concrete layer (2) and the through hole of the natural rock mass (1).

3. A novel zero-carbon environmentally friendly compressed air sealed energy storage device according to claim 1, characterized in that: A plurality of sensors (10) are fixedly connected to the inner and outer walls at both ends of the fluoroplastic energy storage sealing device (4), and the outer wall of the sensor (10) on the outside is in contact with the inner wall of the circular ring (3).

4. A novel zero-carbon environmentally friendly compressed air sealed energy storage device according to claim 1, characterized in that: Control cabinets (11) are fixedly connected to the inner walls at the lower left and right sides of the reinforced concrete layer (2).

5. A novel zero-carbon and environmentally friendly compressed air sealed energy storage device according to claim 1, characterized in that: The connection mechanism comprises a protective sleeve (12) sleeved on the middle outer wall of the fluoroplastic energy storage sealing device (4), the outer wall of the protective sleeve (12) is in contact with the inner wall of the reinforced concrete layer (2), and the interior of the protective sleeve (12) is filled with a sponge pad (13).

6. A novel zero-carbon environmentally friendly compressed air sealed energy storage device according to claim 1, characterized in that: An openable inspection port (14) is fixedly connected to the lower left side of the fluoroplastic energy storage sealing device (4).

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