Built-in power generation and power output device for high-pressure natural gas pipeline

Abstract

The invention provides a built-in generated power output device for a high-pressure natural gas pipeline, relates to the technical field of natural gas power generation, is suitable for a power generation element, and comprises two storage elements arranged on the power generation element, and each storage element comprises a storage part arranged on the power generation element and two sealing parts arranged between the power generation element and the storage part. The power transmission element comprises a discharge part arranged on the storage part and two power transmission parts which are arranged in the power generation element and are respectively connected with the storage part, through the technical scheme, the purpose is that the power transmission parts and the discharge parts in different groups are intermittently and crossly started, the current can be stably output to the outside; the natural pipeline gas is isolated from the storage box through the arrangement of the threads and the threaded holes in combination with the arrangement of the compaction ring and the sealing gasket, and through the arrangement of the testing agent, when the natural gas leaks, the natural gas with high pressure can blow dilute sulfuric acid in the storage box, and leakage is displayed through the chromogenic reaction of the dilute sulfuric acid.

Description

Technical Field

[0001] The present invention relates to the technical field of natural gas power generation, and in particular to a device for generating power in a high-pressure natural gas pipeline. Background Art

[0002] In the pursuit of efficient energy utilization, harnessing the pressure energy of natural gas pipelines for on-site power generation is a highly promising and feasible solution. For space-constrained pressure regulating stations and surge tanks, in-pipeline power generation devices are an ideal option. This solution is not only cost-effective and effectively meets relevant needs, but also offers high flexibility, allowing for easy transportation and installation within existing gas pipeline networks.

[0003] However, existing pressure-energy power generation devices embedded in natural gas pipelines have significant limitations. For example, magnetic power generation suffers from inefficient magnets and is prone to demagnetization. Furthermore, under high-pressure conditions, the thickness of the pipeline wall exceeds the effective distance of magnetic induction, making it difficult to efficiently utilize pressure energy for power generation. Therefore, solving the power output issue for embedded power generation in high-pressure natural gas pipelines has become a critical challenge that needs to be overcome.

[0004] Chinese patent application CN206530450U discloses a built-in natural gas pipeline pressure differential power generation device. This device transmits the electricity generated by the generator to the outside of the device via wires, and the wires and outlets are sealed with glue. Furthermore, to protect the generator, a protective cover is installed on the outside, effectively isolating the generator from the natural gas. However, this invention also has obvious shortcomings. The glue sealing method is only suitable for low-pressure pipelines. In high-pressure pipelines, the output gap is very likely to cause gas leakage, posing a significant safety hazard. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art, such as low efficiency of power transmission by magnetic induction line cutting, risk of leakage of conductive columns through gluing and difficulty in detecting whether natural gas is leaking.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a device for internal power generation and output in a high-pressure natural gas pipeline, suitable for a power generation element, comprising two storage elements fixedly mounted on the power generation element, the storage elements comprising a storage portion disposed on the power generation element, two sealing portions disposed between the power generation element and the storage portion, and a detection portion disposed on the storage portion;

[0007] a power transmission element comprising a discharge portion fixedly disposed on the storage portion, and two power transmission portions disposed within the power generation element and respectively connected to the storage portion;

[0008] The generating element generates electricity, and the current is continuously transmitted to the storage part on the left through the power transmission part at the upper end. The power transmission part at the upper end is disconnected, and the current is continuously transmitted to the storage part on the right through the power transmission part at the lower end. The storage part on the left side discharges through the discharge part, and the power transmission part and the discharge part are intermittently cross-started, and the current is stably output to the outside.

[0009] In at least some embodiments, the power generation element includes a natural gas pipeline body and a power generation portion disposed within the natural gas pipeline body.

[0010] In at least some embodiments, the power generation unit includes a power generation fan rotatably disposed inside the natural gas pipeline body, and a generator fixedly disposed inside the natural gas pipeline body. The power generation fan rotates and the generator generates current.

[0011] In at least some embodiments, the storage portion includes a storage box fixedly mounted on the upper wall of the natural gas pipeline body, an infusion port disposed on the upper wall of the storage box, dilute sulfuric acid is stored in the storage box, and the storage box has no lower wall.

[0012] In at least some embodiments, the storage portion further includes a positive electrode plate disposed inside the storage box and a negative electrode plate disposed inside the storage box, wherein both the positive electrode plate and the negative electrode plate are disposed through the upper wall of the storage box, and both the positive electrode plate and the negative electrode plate are disposed through the upper wall of the natural gas pipeline body.

[0013] In at least some embodiments, the sealing portion includes a threaded hole provided on the upper wall of the natural gas pipeline body, and threads provided on the outer walls of the positive plate and the negative plate, and the positive plate and the negative plate are both threadedly connected to the threaded hole through the threads.

[0014] In at least some embodiments, the sealing portion further includes a compaction ring disposed on the outer walls of the positive plate and the negative plate, and a sealing gasket fixedly disposed on the lower wall of the compaction ring, wherein the compaction ring is threadably connected to the positive plate and the negative plate via the thread.

[0015] In at least some embodiments, the detection portion includes a detection box fixedly mounted on an upper wall of the storage box, a test agent disposed in the detection box, and the detection box is in communication with the interior of the storage box.

[0016] In at least some embodiments, the discharge unit includes a positive discharge wire disposed on the upper end of the positive plate and electrically connected thereto, a negative discharge wire disposed on the upper end of the negative plate and electrically connected thereto, and an external relay disposed on the positive discharge wire and electrically connected thereto.

[0017] In at least some embodiments, the power transmission unit includes a positive power transmission line arranged at the lower end of the positive plate and electrically connected thereto, a negative power transmission line arranged at the lower end of the negative plate and electrically connected thereto, and an internal relay arranged on the positive power transmission line and electrically connected thereto.

[0018] Compared with the prior art, the advantages and positive effects of the present invention are:

[0019] 1. In the present invention, through the cooperation of the power generation fan and the generator, the current is continuously transmitted to the left storage part through the upper power transmission part. When the upper power transmission part is disconnected, the current is continuously transmitted to the right storage part through the lower power transmission part. At this time, the left storage part discharges through the discharge part. The different groups of power transmission parts and discharge parts are intermittently cross-activated, and the current can be stably output to the outside. Compared with the power transmission through magnetic line cutting, the power transmission efficiency is improved.

[0020] 2. In the present invention, the arrangement of threads and threaded holes, combined with the arrangement of compaction rings and sealing gaskets, isolates natural pipeline gas from the storage box, thereby reducing the possibility of natural gas leakage compared to the traditional sealing method by gluing.

[0021] 3. In the present invention, by setting the test agent in the detection box, when natural gas leaks, the natural gas with higher pressure will blow the dilute sulfuric acid in the storage box, and the color reaction of the dilute sulfuric acid is used to display the leakage. When the natural gas leaks, it can be more easily observed, ensuring the safety of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure from a first perspective of a device for built-in power generation and output in a high-pressure natural gas pipeline proposed by the present invention;

[0023] Figure 2 A second perspective overall structural diagram of a device for built-in power generation and output in a high-pressure natural gas pipeline proposed by the present invention;

[0024] Figure 3 A first-perspective cross-sectional view of the internal structure of a device for built-in power generation and output in a high-pressure natural gas pipeline proposed by the present invention;

[0025] Figure 4 The present invention provides a second perspective internal structure cutaway diagram of a device for built-in power generation and output in a high-pressure natural gas pipeline.

[0026] Legend: 1. Power generation element; 11. Natural gas pipeline body; 12. Power generation unit; 121. Generator; 122. Power generation fan; 2. Storage element; 21. Storage unit; 211. Storage box; 212. Positive plate; 213. Negative plate; 214. Infusion port; 22. Sealing unit; 221. Threaded hole; 222. Thread; 223. Sealing gasket; 224. Compacting ring; 23. Detection unit; 231. Detection box; 232. Test agent; 3. Power transmission element; 31. Discharge unit; 311. Positive discharge wire; 312. Negative discharge wire; 313. External relay; 32. Power transmission unit; 321. Positive power transmission wire; 322. Negative power transmission wire; 323. Internal relay. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] like Figures 1 to 4 As shown, an embodiment of the present invention provides a device for built-in power generation and output in a high-pressure natural gas pipeline, which is applicable to a power generation element 1. The power generation element 1 includes a natural gas pipeline body 11, a power generation unit 12 arranged in the natural gas pipeline body 11, and the power generation unit 12 includes a power generation fan 122 rotatably arranged in the natural gas pipeline body 11, and a generator 121 fixedly arranged in the natural gas pipeline body 11. The power generation fan 122 rotates and the generator 121 generates current.

[0030] The blades of generator fan 122 feature a unique airfoil design. Based on aerodynamic principles, a pressure differential is generated on either side of the blades, causing them to rotate due to torque. The blades are connected to a hub, which drives the rotor shaft, converting wind energy into mechanical energy for the rotor. The rotor shaft is connected to a gearbox, which converts the rotor's low-speed rotation into high-speed rotation to meet the speed requirements of generator 121. This increased mechanical energy is transferred to the rotor of generator 121 through electromagnetic induction, generating electricity.

[0031] Two storage elements 2 are fixedly installed on the natural gas pipeline body 11. The storage element 2 includes a storage portion 21 arranged on the power generation element 1. The storage portion 21 includes a storage box 211 fixedly installed on the upper wall of the natural gas pipeline body 11, and an infusion port 214 arranged on the upper wall of the storage box 211. Dilute sulfuric acid is stored in the storage box 211, and the storage box 211 is not provided with a lower wall.

[0032] Storage section 21 also includes a positive electrode plate 212 and a negative electrode plate 213 disposed within storage box 211. Both the positive and negative electrode plates 212 and 213 extend through the upper wall of storage box 211 and through the upper wall of natural gas pipeline body 11. The active materials on positive plate 212 and negative plate 213 are lead dioxide and sponge lead, respectively. Dilute sulfuric acid is used as the electrolyte. During discharge, the lead dioxide at the positive electrode and the lead at the negative electrode undergo electrochemical reactions with the sulfuric acid, generating electricity. During charging, these reactions reverse under the action of an external power source, restoring the electrode active materials to their initial state, thereby achieving recharging.

[0033] Two sealing portions 22 are provided between the power generation element 1 and the storage portion 21. The sealing portions 22 include a threaded hole 221 provided on the upper wall of the natural gas pipeline body 11 and threads 222 provided on the outer walls of the positive plate 212 and the negative plate 213. The positive plate 212 and the negative plate 213 are both threadedly connected to the threaded hole 221 via the threads 222. The threaded hole 221 and the threads 222 can adopt API standard trapezoidal thread joints. The thread profile design of the trapezoidal thread ensures that the tooth flanks of the threads fit tightly after tightening. Its special tooth profile angle enables the threads to generate a large contact pressure between the tooth flanks when subjected to axial force, thereby effectively preventing fluid leakage through the thread gap. Furthermore, sealing grease can be applied to the threads 222 to improve the sealing performance.

[0034] The sealing part 22 also includes a compaction ring 224 arranged on the outer wall of the positive plate 212 and the negative plate 213, and a sealing gasket 223 fixedly arranged on the lower wall of the compaction ring 224. The compaction ring 224 is threadedly connected to the positive plate 212 and the negative plate 213 through a thread 222. The sealing gasket 223 is elastic and can better seal.

[0035] A detection section 23 is provided on the storage section 21. The detection section 23 includes a detection box 231 fixedly arranged on the upper wall of the storage box 211, and a test agent 232 arranged in the detection box 231. The detection box 231 is connected to the interior of the storage box 211. The test agent 232 can be pH test paper or other reagents that react with dilute sulfuric acid to develop color, such as steroid compounds and flavonoid compounds.

[0036] Each storage box 211 is provided with a power transmission element 3, which includes a discharge unit 31 fixedly provided on the storage unit 21. The discharge unit 31 includes a positive discharge wire 311 provided at the upper end of the positive plate 212 and electrically connected thereto, a negative discharge wire 312 provided at the upper end of the negative plate 213 and electrically connected thereto, and an external relay 313 provided on the positive discharge wire 311 and electrically connected thereto.

[0037] Two power transmission units 32 are provided in the power generation element 1. The power transmission unit 32 includes a positive power transmission line 321 provided at the lower end of the positive plate 212 and electrically connected thereto, a negative power transmission line 322 provided at the lower end of the negative plate 213 and electrically connected thereto, and an internal relay 323 provided on the positive power transmission line 321 and electrically connected thereto. Both the external relay 313 and the internal relay 323 are controlled by an external controller.

[0038] In one embodiment provided herein, the power generation fan 122 and the generator 121 cooperate to continuously transmit current to the left storage section 21 through the upper power transmission section 32. When the upper power transmission section 32 is disconnected, current is continuously transmitted to the right storage section 21 through the lower power transmission section 32. The left storage section 21 is then discharged through the discharge section 31. By intermittently and cross-activating different groups of power transmission sections 32 and discharge sections 31, current can be stably output to the outside, thereby improving power transmission efficiency.

[0039] The arrangement of the thread 222 and the threaded hole 221, combined with the arrangement of the compacting ring 224 and the sealing gasket 223, isolates the natural gas pipeline body 11 from the storage box 211, thereby reducing the possibility of natural gas leakage.

[0040] By setting the test agent 232 in the detection box 231, when natural gas leaks, the natural gas with higher pressure will blow the dilute sulfuric acid in the storage box 211, and the leakage will be displayed by the color reaction of the dilute sulfuric acid. When the natural gas leaks, it can be more easily observed, ensuring the safety of the workers.

[0041] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other form. Any person skilled in the art may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiments made in accordance with the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A device for generating power in a high-pressure natural gas pipeline, suitable for a power generation element (1), characterized in that: The invention comprises two storage elements (2) fixedly arranged on the power generation element (1), wherein the storage element (2) comprises a storage portion (21) arranged on the power generation element (1), two sealing portions (22) arranged between the power generation element (1) and the storage portion (21), and a detection portion (23) arranged on the storage portion (21); A power transmission element (3), the power transmission element (3) comprising a discharge portion (31) fixedly disposed on the storage portion (21), and two power transmission portions (32) disposed in the power generation element (1) and respectively connected to the storage portion (21); The power generating element (1) generates electricity, and the current is continuously transmitted to the storage portion (21) on the left through the power transmission portion (32) at the upper end. The power transmission portion (32) at the upper end is disconnected, and the current is continuously transmitted to the storage portion (21) on the right through the power transmission portion (32) at the lower end. The storage portion (21) on the left is discharged through the discharge portion (31). The power transmission portion (32) and the discharge portion (31) are intermittently cross-activated, and the current is stably output to the outside.

2. The device for built-in power generation and output in a high-pressure natural gas pipeline according to claim 1, characterized in that: The power generation element (1) comprises a natural gas pipeline body (11) and a power generation part (12) arranged in the natural gas pipeline body (11).

3. The device for built-in power generation and output in a high-pressure natural gas pipeline according to claim 2, characterized in that: The power generation unit (12) includes a power generation fan (122) rotatably arranged inside the natural gas pipeline body (11), and a generator (121) fixedly arranged inside the natural gas pipeline body (11). When the power generation fan (122) rotates, the generator (121) generates current.

4. The device for built-in power generation and output in a high-pressure natural gas pipeline according to claim 2, characterized in that: The storage portion (21) comprises a storage box (211) fixedly arranged on the upper wall of the natural gas pipeline body (11), an infusion port (214) arranged on the upper wall of the storage box (211), dilute sulfuric acid is stored in the storage box (211), and the storage box (211) is not provided with a lower wall.

5. The device for built-in power generation and output in a high-pressure natural gas pipeline according to claim 4, characterized in that: The storage portion (21) further comprises a positive electrode plate (212) disposed inside the storage box (211), and a negative electrode plate (213) disposed inside the storage box (211); the positive electrode plate (212) and the negative electrode plate (213) are both disposed through the upper wall of the storage box (211); and the positive electrode plate (212) and the negative electrode plate (213) are both disposed through the upper wall of the natural gas pipeline body (11).

6. The device for built-in power generation and output in a high-pressure natural gas pipeline according to claim 5, characterized in that: The sealing portion (22) includes a threaded hole (221) provided on the upper wall of the natural gas pipeline body (11), and threads (222) provided on the outer walls of the positive electrode plate (212) and the negative electrode plate (213); the positive electrode plate (212) and the negative electrode plate (213) are both threadedly connected to the threaded hole (221) via the threads (222).

7. The device for built-in power generation and output in a high-pressure natural gas pipeline according to claim 6, characterized in that: The sealing portion (22) further includes a compacting ring (224) arranged on the outer walls of the positive electrode plate (212) and the negative electrode plate (213), and a sealing gasket (223) fixedly arranged on the lower wall of the compacting ring (224). The compacting ring (224) is threadedly connected to the positive electrode plate (212) and the negative electrode plate (213) through the thread (222).

8. The device for built-in power generation and output in a high-pressure natural gas pipeline according to claim 4, characterized in that: The detection portion (23) includes a detection box (231) fixedly arranged on the upper wall of the storage box (211), a test agent (232) arranged in the detection box (231), and the detection box (231) is communicated with the interior of the storage box (211).

9. The device for built-in power generation and output in a high-pressure natural gas pipeline according to claim 5, characterized in that: The discharge portion (31) includes a positive discharge line (311) disposed on the upper end of the positive plate (212) and electrically connected thereto, a negative discharge line (312) disposed on the upper end of the negative plate (213) and electrically connected thereto, and an external relay (313) disposed on the positive discharge line (311) and electrically connected thereto.

10. The device for built-in power generation and output in a high-pressure natural gas pipeline according to claim 5, characterized in that: The power transmission unit (32) includes a positive power transmission line (321) provided at the lower end of the positive plate (212) and electrically connected thereto, a negative power transmission line (322) provided at the lower end of the negative plate (213) and electrically connected thereto, and an internal relay (323) provided on the positive power transmission line (321) and electrically connected thereto.

Images