Artificial tunnel type structure of constant-high-pressure underground gas storage cavern based on rubber diaphragm

Abstract

The utility model relates to the field of civil engineering constant high pressure underground artificial gas storage caverns, and discloses an artificial tunnel type structure of a constant high pressure underground gas storage cavern based on a rubber diaphragm, which comprises a pressing strip I and a pressing strip II, steel pipe piece assemblies are arranged on the tops of the two first pressing strips, and rubber diaphragm assemblies are arranged on the inner sides of the second pressing strips. The rubber diaphragm assembly comprises a rubber diaphragm, the rubber diaphragm is installed on the inner side of the second pressing strip, and a plurality of carbon fiber layers are fixedly connected to the inner side of the rubber diaphragm. According to the rubber diaphragm, the strength and the tear resistance of the diaphragm are enhanced through the carbon fiber layer and the nylon wires in the rubber diaphragm, so that the diaphragm can better bear the pressure change of high-pressure air and water and frequent expansion deformation. Therefore, not only is the service life of the diaphragm prolonged, but also the reliability of the diaphragm under severe working conditions is ensured, and the effective realization of the isolation function is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to civil engineering constant high pressure underground artificial gas storage cavern field especially, it relates to the artificial tunnel type structure of constant high pressure underground gas storage cavern based on rubber diaphragm. BACKGROUND

[0002] The artificial tunnel type structure of constant high pressure underground gas storage cavern based on rubber diaphragm is a special civil engineering structure applied to compressed air energy storage field, which realizes high pressure gas storage and maintains constant pressure by means of underground space.

[0003] The early constant high pressure underground gas storage cavern artificial tunnel is usually a simple underground gas storage cavern, which directly uses natural cave or artificially excavated underground space as gas storage place. Compared with newly built special gas storage facilities, simple use of underground cave can directly transform and use existing space, omitting complex infrastructure steps, enabling rapid use and shortening the time from planning to operation.

[0004] Although the simple underground gas storage cavern can be quickly put into use, in this design, no special isolation device is set, when compressed air is injected into the cavern, if there is a certain amount of water in the cavern or water seeps in during the gas storage process, the high pressure compressed air will directly contact with water. Therefore, the artificial tunnel type structure of constant high pressure underground gas storage cavern based on rubber diaphragm is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides the artificial tunnel type structure of constant high pressure underground gas storage cavern based on rubber diaphragm, aiming at improving the problem of direct contact between high pressure compressed air and water in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The artificial tunnel type structure of constant high pressure underground gas storage cavern based on rubber diaphragm comprises a pressing strip one and a pressing strip two, the pressing strip one and the pressing strip two are connected through a sealing installation assembly, two top portions of the pressing strip one are provided with steel pipe piece assemblies, and the inner side of the pressing strip two is provided with a rubber diaphragm assembly;

[0008] The rubber diaphragm assembly comprises a rubber diaphragm, the rubber diaphragm is installed on the inner side of the pressing strip two, a plurality of carbon fiber layers are fixedly connected to the inner side of the rubber diaphragm, a plurality of nylon wires are fixedly connected to the inner side of the rubber diaphragm, and the plurality of nylon wires are also fixedly connected to the inner side of the carbon fiber layers;

[0009] As a further description of the above technical scheme:

[0010] The steel pipe piece assembly comprises a steel pipe piece, the steel pipe piece is fixedly connected outside the end of the compression strip one, the end of the compression strip one is also fixedly connected with an anticorrosive layer and a waterproof layer, the waterproof layer is fixedly connected inside the steel pipe piece, and the anticorrosive layer is fixedly connected inside the waterproof layer;

[0011] As a further description of the above technical solution:

[0012] The sealing installation assembly comprises a fixed bolt, the fixed bolt is installed inside the end of the rubber diaphragm, and the fixed bolt is also installed inside the compression strip one and the compression strip two;

[0013] As a further description of the above technical solution:

[0014] The sealing installation assembly further comprises sealing rubber rings, a plurality of sealing rubber rings are arranged outside the compression strip one and the compression strip two, and the plurality of sealing rubber rings are slidably connected outside the two ends of the fixed bolt;

[0015] As a further description of the above technical solution:

[0016] The steel pipe piece is fixedly connected with an expansion joint inside, and the expansion joint is fixedly connected with asbestos fibers inside;

[0017] As a further description of the above technical solution:

[0018] A plurality of anchor rods are installed inside the steel pipe piece, the anticorrosive layer and the waterproof layer, and the ends of the anchor rods are fixedly connected with external tunnels;

[0019] As a further description of the above technical solution:

[0020] A plurality of sealing rings are slidably connected outside the plurality of anchor rods, and the plurality of sealing rings are arranged outside the steel pipe piece and the anticorrosive layer;

[0021] As a further description of the above technical solution:

[0022] The ends of the plurality of anchor rods are fixedly connected with anti-stripping lines outside.

[0023] The utility model has the advantages of the following beneficial effects:

[0024] 1、The utility model discloses, pass through the rubber diaphragm and divide the cavern into upper and lower chambers, effectively prevent high pressure air from dissolving in water, avoid the " boiling " phenomenon that produces because air is precipitated from water, guarantee the effective storage and release of compressed air, improve the stability and energy storage efficiency of system, make more compressed air can participate in power generation, greatly improve energy utilization efficiency, reduce operating cost, improve economic benefit.

[0025] 2. The utility model discloses, and the compression strip one and the compression strip two are tightly connected through the sealing installation component, and the fixed bolt and the sealing rubber ring guarantee the leakproofness and firmness of the connecting part, the steel pipe piece is fixedly connected with the external tunnel through the anchor rod, and the anti -unthread of the anchor rod and the sealing ring of outside further strengthen the stability and leakproofness of connection. The whole structure can be firmly fixed in the tunnel, bears the high pressure in the hole, and ensures the safety and reliability of system. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the three -dimensional schematic view of the artificial tunnel formula structure of the constant high pressure underground gas storage cavern based on the rubber diaphragm that the utility model provides;

[0027] Figure 2 It is the structure schematic view of the compression strip one of the artificial tunnel formula structure of the constant high pressure underground gas storage cavern based on the rubber diaphragm that the utility model provides;

[0028] Figure 3 It is the structure schematic view of the asbestos fiber of the artificial tunnel formula structure of the constant high pressure underground gas storage cavern based on the rubber diaphragm that the utility model provides;

[0029] Figure 4 It is the structure schematic view of the rubber diaphragm of the artificial tunnel formula structure of the constant high pressure underground gas storage cavern based on the rubber diaphragm that the utility model provides;

[0030] Figure 5 It is the structure schematic view of the carbon fiber layer of the artificial tunnel formula structure of the constant high pressure underground gas storage cavern based on the rubber diaphragm that the utility model provides.

[0031] LEGEND:

[0032] 1, steel pipe piece;2, asbestos fiber;3, expansion joint;4, compression strip one;5, rubber diaphragm;6, compression strip two;7, sealing ring;8, anticorrosive layer;9, anchor rod;10, anti -unthread;11, fixed bolt;12, carbon fiber layer;13, nylon line;14, waterproof layer;15, sealing rubber ring. DETAILED DESCRIPTION

[0033] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0034] REFERENCE Figure 1 , Figure 2 , Figure 3 and Figure 4The utility model provides an embodiment: the artificial tunnel formula structure of constant high pressure underground gas storage cavern based on rubber diaphragm, including the compression strip one 4 and the compression strip two 6, the compression strip one 4 and the compression strip two 6 are connected through the sealing installation component, two compression strip one 4 top all are provided with steel pipe piece assembly, the inside of compression strip two 6 is provided with rubber diaphragm assembly,

[0035] The rubber diaphragm assembly includes a rubber diaphragm 5, which is installed on the inside of the compression strip two 6. The rubber diaphragm 5 is installed on the inside of the compression strip two 6, which divides the gas storage cavern into two chambers. The upper chamber is used for storing and handling high-pressure air, and the lower chamber is used for water inlet and outlet. The rubber diaphragm 5 is fixedly connected with a plurality of carbon fiber layers 12 on the inside. The rubber diaphragm 5 is fixedly connected with a plurality of nylon lines 13 on the inside, and the plurality of nylon lines 13 are also fixedly connected on the inside of the carbon fiber layer 12. The plurality of carbon fiber layers 12 and nylon lines 13 fixedly connected on the inside of the rubber diaphragm 5, and the nylon lines 13 are also fixedly connected on the inside of the carbon fiber layer 12, greatly enhance the mechanical properties of the rubber diaphragm 5. Their common action is to make the rubber diaphragm 5 have long-term stable working performance. In the process of gas storage and energy release, the rubber diaphragm 5 is prevented from being damaged, and the function of isolating high-pressure air and water is reliably realized.

[0036] Referring to Figure 1 , Figure 2 and Figure 3 , the steel pipe piece assembly includes a steel pipe piece 1 fixedly connected on the outside of the end of the compression strip one 4. The steel pipe piece 1 serves as the main structural support component and bears the pressure of high-pressure air and water in the gas storage cavern. The steel pipe piece is connected with the artificial cavern through anchor nails. The end of the compression strip one 4 is also fixedly connected with a corrosion-resistant layer 8 and a waterproof layer 14. The waterproof layer 14 is fixedly connected on the inside of the steel pipe piece 1, which can effectively prevent water from contacting the steel pipe piece and prevent the steel pipe piece from rusting. The corrosion-resistant layer 8 is fixedly connected on the inside of the waterproof layer 14. The corrosion-resistant layer 8 can resist the corrosion of various chemicals to the steel pipe piece, ensuring the stability and durability of the structure, so that it can withstand high-pressure environment for a long time. The inside of the steel pipe piece 1 is fixedly connected with an expansion joint 3, and the inside of the expansion joint 3 is fixedly connected with an asbestos fiber 2. The expansion joint 3 is used to absorb the size change and displacement caused by thermal expansion and cold contraction. The soft filler in the expansion joint 3 further enhances the performance and function of the expansion joint 3. When the steel pipe piece 1 shrinks due to cold, the expansion joint 3 will shorten, and the soft filler will recover part of the volume to fill the gap inside the expansion joint 3 caused by shrinkage.

[0037] Referring to Figure 3 , Figure 4 and Figure 5The sealing and mounting assembly comprises a fixing bolt 11 mounted on the inner side of the end of the rubber diaphragm 5, and also mounted on the inner side of the compression strip one 4 and the compression strip two 6. The fixing bolt 11 penetrates the inner side of the end of the rubber diaphragm 5, and the inner side of the compression strip one 4 and the compression strip two 6, and firmly connects them, so that the rubber diaphragm assembly, the steel pipe piece assembly and the like can work cooperatively. The sealing and mounting assembly further comprises a plurality of sealing rubber rings 15, which are respectively arranged on the outer side of the compression strip one 4 and the compression strip two 6, and are all slidingly connected on the outer side of both ends of the fixing bolt 11. The sealing rubber ring 15 plays a sealing role, prevents high-pressure air and water from leaking from the connection, and ensures the sealing and integrity of the structure.

[0038] With reference to Figure 1 , Figure 2 and Figure 3 , a plurality of anchor rods 9 are arranged on the inner side of the steel pipe piece 1, the corrosion-proof layer 8 and the waterproof layer 14, and the end of each anchor rod 9 is fixedly connected with the external tunnel. A plurality of sealing rings 7 are slidingly connected on the outer side of each anchor rod 9, and the sealing ring 7 is arranged on the outer side of the steel pipe piece 1 and the corrosion-proof layer 8. The sealing ring 7 further enhances the sealing property of the connection part between the structure and the tunnel, prevents water and air from penetrating from the connection, and ensures the stability and safety of the structure. The end of each anchor rod 9 is fixedly connected with an anti-extraction groove 10. The anti-extraction groove 10 increases the friction between the anchor rod and the tunnel wall, prevents the anchor rod from being pulled out, and ensures that the whole structure is stably fixed on the tunnel wall to bear the high pressure in the compressed air storage chamber.

[0039] Working principle: two vertical shafts are excavated first, and the bottom is connected by a horizontal circular tunnel to form the basic framework of the compressed air energy storage artificial chamber. One of the vertical shafts is connected with the reservoir at the upper end, and the pressure difference generated by the water level is used to maintain the constant high pressure of the air in the artificial chamber; the other vertical shaft is used as an up-and-down passage for compressed air for charging and discharging. When storing air, compressed air enters the artificial chamber in the horizontal tunnel through the vertical shaft; when releasing energy, compressed air is discharged through the vertical shaft for power generation and the like.

[0040] The compressed air enters the upper chamber between the rubber diaphragm 5 and the steel pipe piece 1 through the ventilation vertical shaft, the pressure of the upper chamber gradually rises, the rubber diaphragm 5 deforms downward under the action of the pressure, the space of the lower chamber is compressed, the pressure rises, and the water is squeezed out to the reservoir or the like storage space connected with the vertical shaft. In this process, the rubber diaphragm 5 prevents high-pressure air from dissolving into water, ensures the effective storage of air, and at the same time, the components work cooperatively to maintain the stability and sealing of the structure.

[0041] The compressed air in the upper chamber is discharged through the air vent shaft for power generation and other operations, and the pressure in the upper chamber is reduced. At this time, the pressure in the lower chamber is relatively high, and the water flows from the reservoir into the lower chamber through the water passage shaft, and the rubber diaphragm 5 is deformed upward to restore its original position. The discharged high-pressure air realizes energy conversion, completes the energy release process, and then the system can be operated again for gas storage, and so on.

[0042] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. Artificial tunnel type structure of constant high pressure underground gas storage cavern based on rubber membrane, comprising pressure strip one (4) and pressure strip two (6), characterized in that: The compression strip one (4) and the compression strip two (6) are connected through a sealing installation assembly, both of the compression strip one (4) are provided with a steel pipe piece assembly at the top, the inner side of the compression strip two (6) is provided with a rubber diaphragm assembly; The rubber diaphragm assembly comprises a rubber diaphragm (5), the rubber diaphragm (5) is installed on the inner side of the compression strip two (6), a plurality of carbon fiber layers (12) are fixedly connected to the inner side of the rubber diaphragm (5), a plurality of nylon wires (13) are fixedly connected to the inner side of the rubber diaphragm (5), and the plurality of nylon wires (13) are also fixedly connected to the inner side of the carbon fiber layer (12).

2. The artificial tunnel type structure of rubber diaphragm based constant high pressure underground gasholders as claimed in claim 1 wherein: The steel pipe piece assembly comprises a steel pipe piece (1), the steel pipe piece (1) is fixedly connected to the outer side of the end of the compression strip one (4), the outer side of the end of the compression strip one (4) is also fixedly connected with an anticorrosive layer (8) and a waterproof layer (14), the waterproof layer (14) is fixedly connected to the inner side of the steel pipe piece (1), and the anticorrosive layer (8) is fixedly connected to the inner side of the waterproof layer (14).

3. The artificial tunnel type structure of rubber diaphragm based constant high pressure underground gasholders as claimed in claim 1 wherein: The sealing installation assembly comprises a fixing bolt (11), the fixing bolt (11) is installed on the inner side of the end of the rubber diaphragm (5), and the fixing bolt (11) is also installed on the inner side of the compression strip one (4) and the compression strip two (6).

4. The artificial tunnel type structure of rubber diaphragm based constant high pressure underground gasholders as claimed in claim 1 wherein: The sealing installation assembly also comprises sealing rubber rings (15), a plurality of sealing rubber rings (15) are arranged on the outer sides of the compression strip one (4) and the compression strip two (6) respectively, and the plurality of sealing rubber rings (15) are slidably connected to the outer sides of the two ends of the fixing bolt (11).

5. The artificial tunnel type structure of rubber diaphragm based constant high pressure underground gasholders as claimed in claim 2 wherein: The inner side of the steel pipe piece (1) is fixedly connected with an expansion joint (3), and the inner side of the expansion joint (3) is fixedly connected with an asbestos fiber (2).

6. The artificial tunnel type structure of rubber septum based constant high pressure underground gasholders as claimed in claim 2 wherein: The inner sides of the steel pipe piece (1), the anticorrosive layer (8) and the waterproof layer (14) are all installed with a plurality of anchor rods (9), and the ends of the anchor rods (9) are fixedly connected with an external tunnel.

7. The artificial tunnel type structure of rubber diaphragm based constant high pressure underground gasholders as claimed in claim 6 wherein: The outer sides of the plurality of anchor rods (9) are slidably connected with a plurality of sealing rings (7), and the plurality of sealing rings (7) are arranged on the outer sides of the steel pipe piece (1) and the anticorrosive layer (8).

8. The artificial tunnel type structure of rubber diaphragm based constant high pressure underground gasholders as claimed in claim 6 wherein: The ends of the plurality of anchor rods (9) are fixedly connected with anti-drop lines (10).

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