Underground salt rock horizontal old cavity sonar dispenser

Abstract

The utility model belongs to the technical field of underground construction, and particularly relates to an underground salt rock horizontal old cavity sonar dispenser which comprises a barrel, a gas one-way valve seat and a nozzle connecting seat are arranged at the head and the tail of the barrel respectively, and a gas one-way valve used for inflating the barrel is arranged on the gas one-way valve seat. An arc-shaped protective sleeve is arranged outside the gas one-way valve seat; the nozzle connecting seat is provided with a nozzle for discharging gas in the barrel, and the nozzle is provided with a control valve for controlling the opening and closing of the nozzle; a compressed air motor is arranged on the outer side of the nozzle connecting seat, an air inlet of the compressed air motor is connected with the nozzle, a power shaft of the compressed air motor is connected with a propeller connecting shaft, and a propeller is arranged on the propeller connecting shaft; mooring ropes are arranged on the surface of the cylinder. The device is small in size, high in safety and capable of achieving reliable throwing of sonar.

Description

Technical Field

[0001] The utility model belongs to the technical field of underground construction, and in particular relates to an underground salt rock horizontal cavity sonar launcher. Background Art

[0002] In order to solve the peak-shaving problem of renewable energy power generation, the need to build large-scale energy storage reservoirs is becoming increasingly urgent. Compared with other energy storage methods, underground salt cavern energy storage reservoirs have the characteristics of high safety and small footprint. Using horizontal old cavities in salt rocks as energy storage reservoirs can greatly shorten the construction period, reduce investment costs, and reduce pollution to the environment. However, before using horizontal old cavities in salt rocks, it is necessary to have a deeper understanding of the morphological structure of the old cavities. Usually, people use sonar equipment to measure the horizontal old cavities in salt rocks. However, for horizontal old cavities in underground salt deposits that are horizontally distributed, with a width and height of tens or even hundreds of meters and a length of hundreds of meters, traditional sonar morphology measurement devices are limited by detection distance and detection accuracy and cannot be applied. Utility Model Content

[0003] In order to solve the shortcomings and deficiencies of traditional sonar cavity measurement equipment that are difficult to apply to horizontal old cavities, the utility model provides an underground salt rock horizontal old cavity sonar launcher, which can realize the safe launch of underground salt rock horizontal old cavity sonar according to the occurrence characteristics of underground salt rock horizontal old cavities.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an underground salt rock horizontal old cavity sonar launcher, comprising: a cylinder, the head and tail of the cylinder are respectively provided with a gas one-way valve seat and a nozzle connecting seat, the gas one-way valve seat is provided with a gas one-way valve for inflating air into the cylinder, and an arc-shaped protective sleeve is provided on the outside of the gas one-way valve seat; a nozzle for discharging gas in the cylinder is provided on the nozzle connecting seat, and a control valve for controlling the nozzle switch is provided on the nozzle; a compressed air motor is provided on the outside of the nozzle connecting seat, the air inlet of the compressed air motor is connected to the nozzle, the power shaft of the compressed air motor is connected to the propeller connecting shaft, and a propeller is provided on the propeller connecting shaft; a cable is provided on the surface of the cylinder.

[0005] The surface of the cylinder is provided with balancing fins.

[0006] The balancing fin is connected to the cylinder through a rotating shaft, a torsion spring for popping out the balancing fin is arranged on the rotating shaft, a lock hole is arranged at the tail of the balancing fin, and an electronic lock is arranged at a position corresponding to the lock hole on the cylinder.

[0007] The underground salt rock horizontal old cavity sonar launcher also includes a pressure sensor arranged on the surface of the cylinder, and the output end of the pressure sensor is connected to the control end of the control valve and the electronic lock.

[0008] A sealing cover is also provided at the rear of the cylinder, and the sealing cover is fixedly connected to the cylinder to protect the compressed air motor.

[0009] A propeller protection cover is also provided at the tail of the cylinder.

[0010] A balancing sling is arranged on the surface of the cylinder, and the balancing sling is arranged at the bottom of the plumb line direction of the center of gravity of the dispenser.

[0011] The gas one-way valve seat and the nozzle connecting seat are sealed and connected to the cylinder through a sealing ring.

[0012] Two cables are arranged on the surface of the cylinder, one end of the two cables are respectively fixed at symmetrical positions on the surface of the cylinder, and the other ends are merged into one cable at the tail of the cylinder.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model provides an underground salt rock horizontal old cavity sonar launcher, which can be lowered through a wellbore to a salt rock horizontal old cavity with a burial depth of less than 3000m, and finally completes the connection of a self-suspended cable between two wellbores, thereby completing preliminary preparations for the later launch and recovery of sonar equipment in the horizontal cavity, ensuring efficient measurement of the salt rock horizontal old cavity morphology, and overcoming the shortcomings and deficiencies of existing equipment such as large size, inability to perform horizontal old cavity measurement, and poor equipment reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of an underground salt rock horizontal old cavity sonar launcher provided by an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the balancing fin in the embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the horizontal old cavity measurement in salt rock;

[0018] Explanation of the reference numerals: 1—arc-shaped protective sleeve; 2—gas one-way valve; 3—gas one-way valve seat; 4—cylinder; 5—nozzle connecting seat; 6—nozzle; 7—compressed air motor; 8—propeller connecting shaft; 9—propeller; 10—propeller protective cover; 11—balancing sling; 12—pop-up balancing fin; 13—self-suspended cable; 14—propeller shaft sealing cover; 15—inclined well; 16—vertical well; 17—horizontal old cavity of salt rock; 18—torsion spring; 19—electronic lock; 20—lock hole; 21—pressure sensor. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] like Figure 1 As shown, the embodiment of the utility model provides an underground salt rock horizontal old cavity sonar launcher, which is designed according to the principle of compressed gas propulsion, and can drag the self-suspended cable forward in the underground salt rock horizontal old cavity solution and realize the cable connection between the two wellbores, so as to complete the launch of the sonar in the salt rock horizontal old cavity. The launcher structure includes: a cylinder 4, the head and tail of the cylinder 4 are respectively provided with a gas check valve seat 3 and a nozzle connection seat 5, the gas check valve seat 3 is provided with a gas check valve 2 for inflating the cylinder 4, and the outer side of the gas check valve seat 3 is provided with an arc-shaped protective sleeve 1; the nozzle connection seat 5 is provided with a nozzle 6 for discharging the gas in the cylinder 4, and the nozzle 6 is provided with a control valve for controlling the switch of the nozzle 6; the outer side of the nozzle connection seat 5 is provided with a compressed air motor 7, the air inlet of the compressed air motor 7 is connected to the nozzle 6, the power shaft of the compressed air motor 7 is connected to the propeller connection shaft 8, and the propeller connection shaft 8 is provided with a propeller 9; the surface of the cylinder 4 is provided with a cable 13.

[0021] In this embodiment, the gas one-way valve 2 is placed at the front of the dispenser, the air inlet end is arranged on the surface of the arc-shaped protective cover 1, and the air outlet end is arranged in the cylinder 4, which is used to fill the dispenser with high-pressure compressed air; the nozzle 6 is placed at the tail of the dispenser, with an inner diameter of 10mm. When the dispenser is working, the high-pressure compressed air in the cylinder 4 is ejected from the nozzle 6, and the compressed air motor 7 is started to drive the propeller 9 to realize the forward movement of the dispenser.

[0022] Furthermore, if Figure 1 As shown, in this embodiment, the surface of the cylinder 4 is provided with balancing fins 12. The balancing fins 12 can be provided in pairs; the balancing fins can maintain the balance state of the dispenser, making the delivery process more stable.

[0023] Furthermore, if Figure 2 As shown, in this embodiment, specifically, the balancing fin 12 is connected to the cylinder 4 through a rotating shaft, the rotating shaft is provided with a torsion spring 18 for popping out the balancing fin 12, the tail of the balancing fin 12 is provided with a lock hole 20, and the cylinder 4 is provided with an electronic lock 19 at a position corresponding to the lock hole 20. After the balancing fin 12 enters the horizontal old cavity of the salt rock, by controlling the electronic lock 19 to retract from the lock hole 20, the balancing fin can automatically pop out under the action of the torsion spring 18 to maintain the balanced state of the dispenser.

[0024] Furthermore, if Figure 1 As shown, in this embodiment, a pressure sensor 21 is also provided on the surface of the cylinder 4. The control valve can be specifically an electrically controlled valve, and the electronic lock 19 is an electrically controlled electronic lock; the output end of the pressure sensor 21 is connected to the control end of the control valve and the electronic lock 19. After the dispenser enters the horizontal old cavity of the salt rock, the pressure level of the pressure sensor 21 reaches the preset pressure, and then an electrical signal is sent to the control valve and the electronic lock 19 on the nozzle 6, which, on the one hand, opens the control valve to open the nozzle 6, ensuring that the gas in the cylinder 4 will not be discharged during the inflation and delivery process; at the same time, on the other hand, the electronic lock 19 is controlled to retract from the lock hole 20, and the balance fin 12 pops out under the action of the torsion spring 18. When the dispenser is recovered, the internal gas is completely discharged, the balance fin 12 is subject to the limiting force of the wellbore, and the compression torsion spring 18 is retracted and locked.

[0025] Furthermore, if Figure 1 As shown, in this embodiment, a sealing cover 14 is further provided at the tail of the cylinder 4 , and the sealing cover 14 is fixedly connected to the cylinder 4 for protecting the compressed air motor 7 .

[0026] Furthermore, if Figure 1 As shown, in this embodiment, a propeller protection cover 10 is also provided at the tail of the cylinder 4. The propeller protection cover 10 is used to ensure that the propeller will not be damaged by collision during movement.

[0027] Furthermore, if Figure 1 As shown, in this embodiment, a balancing sling 11 is provided on the surface of the cylinder 4. The balancing sling 11 has a smooth surface, and one end is fixedly provided at the bottom of the plumb line direction of the center of gravity of the dispenser. When the high-pressure compressed air in the cylinder 4 is ejected to reduce the total gravity of the dispenser and float up, the suspended part of the balancing sling 11 is lengthened to increase the gravity, so as to ensure that the dispenser always remains suspended in the solution, so as to limit the dispenser to always move horizontally at a height of 1m to 2m above the bottom of the dissolving cavity.

[0028] Furthermore, in this embodiment, in order to achieve sealing inside the cylinder 4, the gas one-way valve seat 3 and the nozzle connection seat 5 are sealed and connected to the cylinder 4 via a sealing ring. Under laboratory conditions, the weight of the dispenser did not change when the compressed air was kept at 30MPa for 24 hours.

[0029] Furthermore, if Figure 1 As shown, in this embodiment, two cables 13 are arranged on the surface of the cylinder 4, one end of the two cables 13 is respectively fixed at symmetrical positions on the surface of the cylinder 4, and the other end is merged into one at the tail of the cylinder. The cable 13 is specifically a self-suspended cable, and its buoyancy and weight are the same in the solution in the horizontal old cavity of the salt rock, which can avoid friction with the wall surface of the horizontal old cavity of the salt rock and reduce the resistance of the dispenser to move forward.

[0030] Furthermore, in this embodiment, in order to ensure that the total weight and buoyancy of the dispenser are substantially the same during the entire operation process, the arc-shaped protective cover 1, the gas one-way valve seat 3, the nozzle connection seat 5 and the propeller shaft sealing cover 14 are made of magnesium alloy, and the cylinder 4 is made of aluminum alloy. In order to achieve the front and rear balance of the gravity of the dispenser, the arc-shaped protective cover 1 is a solid component.

[0031] Due to the inner diameter of the old salt rock cavity casing, the diameter of the cylinder 4 should not exceed 120 mm. To ensure sufficient strength, after ANSYS software analysis, if the shell is made of 6 series aluminum alloy material, the shell thickness should not be less than 6 mm. Therefore, preferably, in this embodiment, the outer diameter of the cylinder 4 is 120 mm, the thickness is 7 mm, and the length is 1.2 m.

[0032] The present embodiment is an underground salt rock horizontal old cavity sonar launcher. Due to the influence of the gas pressure inside the launcher on its underwater movement distance, the launcher of the present embodiment can work in the salt rock horizontal old cavity with a well spacing of less than 400m and a burial depth of less than 3000m. Before the device is used in the horizontal old cavity, it is first necessary to perform well milling operations on the vertical well 16 and the inclined well 15 and fill the salt rock horizontal old cavity 17 with water; after the developed launch device is filled with 30MPa of compressed air, it is lowered from the wellhead of the inclined well 15 with a diameter greater than 150mm to the salt rock horizontal old cavity 17. Under the power of compressed air, the device always moves forward within a range of 1m to 2m from the bottom of the salt rock horizontal old cavity 17, while dragging the self-suspended cable to the bottom of the vertical well, and finally being captured by the capture net arranged in advance at the bottom of the vertical well 16, it is recovered to the ground by the vertical well 16 and the cable connection between the two wellbores is completed, completing the preparation work for the subsequent launch of the sonar equipment.

[0033] like Figure 3 As shown, the specific method of using an underground salt rock horizontal old cavity sonar launcher of this embodiment to carry out sonar launch is:

[0034] 1. Select an underground salt rock horizontal old cavity 17 that meets the requirements in terms of burial depth, diameter, distance between two wellbores, etc.;

[0035] 2. Perform milling operations and other necessary preparations on the vertical well 16 and the inclined well 15 to ensure the smooth lowering of the launcher;

[0036] 3. Inject water into the horizontal old cavity 17 of the salt rock until it overflows to ensure that the horizontal old cavity is full of water;

[0037] 4. Fill the dispenser with high-pressure compressed air to ensure that the pressure of the high-pressure compressed air is above 30MPa;

[0038] 5. Lower the launching device from the inclined well 15 into the horizontal old cavity 17 of the salt rock at the bottom of the well, ensuring that the device is in the correct direction;

[0039] 6. The launcher moves forward under the action of the compressed gas driving the propeller to rotate. When it reaches the bottom of the vertical well 16, it is captured by the capture net arranged in advance at the bottom of the vertical well and then the launcher is recovered, completing the connection of the self-suspended cable between the two wellbores and completing the preparation work for the subsequent sonar to be released into the horizontal salt rock cavity. The subsequent sonar can also be recovered by the self-suspended cable.

[0040] In summary, the utility model provides an underground salt rock horizontal old cavity sonar launcher, which can be lowered into the salt rock horizontal old cavity with a burial depth of less than 3000m through a wellbore with a diameter greater than 150mm, and finally completes the connection of the self-suspended cable between the two wellbores, thereby completing the preliminary preparation for the later deployment of the sonar equipment in the horizontal cavity, ensuring the efficient measurement of the salt rock horizontal old cavity morphology and the reliable recovery of the sonar when encountering unexpected problems during the measurement process, and overcoming the shortcomings and deficiencies of the existing equipment, such as large size, inability to perform horizontal old cavity measurement, and poor equipment reliability. The utility model is not only an important innovation in underground salt rock horizontal old cavity morphology measurement equipment, but also provides a brand-new safety guarantee device for the rescue of life and property in underground water-filled spaces. Its main use is: the deployment of equipment in underground salt rock horizontal old cavities and all other water-filled spaces.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An underground salt rock horizontal cavity sonar launcher, characterized in that: include: A cylinder (4), wherein the head and tail of the cylinder (4) are respectively provided with a gas check valve seat (3) and a nozzle connection seat (5), wherein the gas check valve seat (3) is provided with a gas check valve (2) for inflating the cylinder (4), and an arc-shaped protective sleeve (1) is provided on the outer side of the gas check valve seat (3); a nozzle (6) for discharging gas in the cylinder (4) is provided on the nozzle connection seat (5), and a control valve for controlling the switch of the nozzle (6) is provided on the nozzle (6); a compressed air motor (7) is provided on the outer side of the nozzle connection seat (5), the air inlet of the compressed air motor (7) is connected to the nozzle (6), the power shaft of the compressed air motor (7) is connected to a propeller connection shaft (8), and a propeller (9) is provided on the propeller connection shaft (8); a cable (13) is provided on the surface of the cylinder (4).

2. The underground salt rock horizontal cavity sonar launcher according to claim 1 is characterized in that: The surface of the cylinder (4) is provided with balancing fins (12).

3. The underground salt rock horizontal cavity sonar launcher according to claim 2 is characterized in that: The balancing fin (12) is connected to the cylinder (4) via a rotating shaft, a torsion spring (18) is provided on the rotating shaft for causing the balancing fin (12) to pop out, a lock hole (20) is provided at the tail of the balancing fin (12), and an electronic lock (19) is provided on the cylinder (4) at a position corresponding to the lock hole (20).

4. The underground salt rock horizontal cavity sonar launcher according to claim 3 is characterized in that: It also includes a pressure sensor (21) arranged on the surface of the cylinder (4), and the output end of the pressure sensor (21) is connected to the control end of the control valve and the electronic lock (19).

5. The underground salt rock horizontal cavity sonar launcher according to claim 1 is characterized in that: A sealing cover (14) is also provided at the rear of the cylinder (4), and the sealing cover (14) is fixedly connected to the cylinder (4) and is used to protect the compressed air motor (7).

6. The underground salt rock horizontal cavity sonar launcher according to claim 1 is characterized in that: A propeller protection cover (10) is also provided at the tail of the cylinder (4).

7. The underground salt rock horizontal cavity sonar launcher according to claim 1 is characterized in that: A balancing sling (11) is arranged on the surface of the cylinder (4), and the balancing sling (11) is arranged at the bottom in the direction of the plumb line of the center of gravity of the dispenser.

8. The underground salt rock horizontal cavity sonar launcher according to claim 1 is characterized in that: The gas one-way valve seat (3) and the nozzle connecting seat (5) are sealedly connected to the cylinder (4) via a sealing ring.

9. The underground salt rock horizontal cavity sonar launcher according to claim 1 is characterized in that: Two cables (13) are arranged on the surface of the cylinder (4), one end of the two cables (13) are respectively fixed at symmetrical positions on the surface of the cylinder (4), and the other ends are merged into one at the tail of the cylinder.

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