Natural gas differential pressure generator rectification control device

Abstract

The utility model discloses a rectification control device of a natural gas differential pressure generator, and relates to the technical field of natural gas differential pressure generators. Comprising a rectification control device, the rectification control device comprises a rectification control box body, a control mechanism, an air inlet mechanism and an air outlet mechanism, the control mechanism is installed on the rear side of the inner wall of the rectification control box body, the control mechanism comprises a vertically-through fixed square box, and an electronic element is installed in the fixed square box; an air inlet mechanism is arranged at the bottom of the rectification control box body, and an air outlet mechanism is arranged at the top of the rectification control box body; according to the utility model, heat dissipated by electronic components in the rectification control box body can be quickly dissipated, the heat dissipation efficiency of the rectification control box body is improved, the internal electronic components and circuits are protected, the service life of the rectification control box body is prolonged, overlarge voltage can be prevented, and stable output of current can be maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas differential pressure generators, in particular to a rectification control device for a natural gas differential pressure generator. Background Art

[0002] Natural gas pressure differential power generation uses the pressure difference in the gas pipeline to generate kinetic energy, which is converted into electrical energy through a turbine. This technology does not require fuel, has no carbon emissions, and has the advantages of being environmentally friendly, efficient, and reliable. The basic process includes components such as an airflow inlet regulating valve, an airflow differential pressure gauge, a turbine, a generator, and a control system. The airflow passes through the inlet regulating valve to control the flow and stabilize the air pressure, and then the pressure differential is measured by the airflow differential pressure gauge, which then drives the turbine to rotate, and then the turbine drives the generator to generate electricity. The control system is responsible for managing the operation of the entire system.

[0003] The existing natural gas differential pressure generator lacks an overvoltage protection mechanism, which results in an overload when the electricity generated by the generator is transmitted. If it cannot be properly rectified and controlled, it will cause an overload. This may not only accelerate the aging of the line and shorten its service life, but may also cause spontaneous combustion or power outages in severe cases, posing certain safety risks. In addition, the existing over-rectification control device lacks a heat dissipation structure and has a short service life. Utility Model Content

[0004] The utility model is to solve the technical problems that the existing natural gas differential pressure generator lacks an overvoltage protection mechanism, and the existing rectifier control device lacks a heat dissipation structure and has a short service life. The utility model aims to provide a rectifier control device for a natural gas differential pressure generator, which can quickly dissipate the heat emitted by electronic components in a rectifier control box, improve the heat dissipation efficiency of the rectifier control box, protect internal electronic components and circuits, and increase their service life. At the same time, it can prevent excessive voltage and maintain stable current output.

[0005] The utility model is realized by the following technical solutions:

[0006] The utility model provides a rectifier control device for a natural gas differential pressure generator, comprising a rectifier control device, wherein the rectifier control device comprises a rectifier control box, a control mechanism, an air inlet mechanism and an air outlet mechanism, wherein the control mechanism is installed on the rear side of the inner wall of the rectifier control box, the control mechanism comprises a fixed square box which passes through from top to bottom, electronic components are installed in the fixed square box, the bottom of the rectifier control box is provided with an air inlet mechanism, and the top of the rectifier control box is provided with an air outlet mechanism.

[0007] A further improvement of the technical solution of the utility model is that it also includes a differential pressure generator and a motor control box, and the rectifier control device is connected to the motor control box through a generator cable.

[0008] A further improvement of the technical solution of the utility model is that a movable door is movably installed on the front side of the rectifier control box.

[0009] A further improvement of the technical solution of the utility model is that electronic components including a control circuit board, a rectifier bridge and a varistor are installed in the fixed square box, the rectifier bridge and the varistor are electrically connected to the control circuit board, and the varistor is electrically connected to the rectifier bridge.

[0010] A further improvement of the technical solution of the utility model is that the control mechanism also includes a cable connector, an output line and an output conductor, the cable connector is fixed on a control circuit board, the control circuit board is electrically connected to the output line, and the output end of the output line is electrically connected to the output conductor.

[0011] A further improvement of the technical solution of the utility model is that a wire bracket is installed on the inner wall of the fixed square box below the cable connector.

[0012] A further improvement of the technical solution of the utility model is that the air intake mechanism includes an air intake box and an air intake fan, the air intake box is fixedly installed at the bottom of the rectifier control box and is connected to the inner cavity of the rectifier control box, and the air intake fan is fixedly installed on the inner wall of the air intake box.

[0013] A further improvement of the technical solution of the utility model is that an air inlet filter plate is fixedly installed on the bottom of the inner wall of the air inlet box.

[0014] A further improvement of the technical solution of the utility model is that the air outlet mechanism includes an air outlet box and an air outlet fan, the air outlet box is fixedly installed on the top of the rectifier control box and is connected to the inner cavity of the rectifier control box, and the air outlet fan is fixedly installed on the inner wall of the air outlet box.

[0015] A further improvement of the technical solution of the utility model is that a protective wire mesh plate is fixedly installed on the top of the air outlet box.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0017] 1. The utility model helps to dissipate heat of electronic components installed in the fixed square box in the rectifier control box through the mutual cooperation of the air inlet mechanism and the air outlet mechanism. The fixed square box that passes through from top to bottom allows the heat emitted by the internal electronic components to be discharged through rapid air circulation, thereby improving the heat dissipation efficiency of the rectifier control box, protecting the internal electronic components and circuits, and increasing their service life.

[0018] 2. The utility model converts the AC power output by the differential pressure generator into DC power through the cooperation of the differential pressure generator, the rectifier bridge and the varistor. The rectifier bridge and the varistor are arranged at the output end of the differential pressure generator, and the varistor is used to prevent the voltage from being too large to maintain a stable current output. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0020] Figure 1 It is an overall schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a cross-sectional schematic diagram of the rectifier control box of the utility model structure;

[0022] Figure 3 It is a cross-sectional schematic diagram of a fixed square box of the utility model structure;

[0023] Figure 4 It is a schematic diagram of the air inlet mechanism of the utility model structure;

[0024] Figure 5 The utility model is a schematic diagram of the air outlet mechanism of the structure.

[0025] Marks and corresponding parts names in the attached drawings:

[0026] 1-motor group base, 2-differential pressure generator, 3-motor control box, 31-generator cable, 4-rectifier control device, 41-rectifier control box, 42-movable door, 43-control mechanism, 431-fixed square box, 432-wire bracket, 433-control circuit board, 434-cable connector, 435-rectifier bridge, 436-varistor, 437-output line, 438-power output wire, 44-wire inlet hole, 45-air inlet mechanism, 451-air inlet box, 452-inlet fan, 453-air inlet filter plate, 46-air outlet mechanism, 461-air outlet box, 462-outlet fan, 463-protective wire mesh plate. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0028] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, in order to avoid confusing the present invention, well-known structures, circuits, materials or methods are not specifically described.

[0029] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] In the description of the present invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0031] Example 1

[0032] like Figure 1 , Figure 2 As shown, the utility model provides a rectifier control device for a natural gas differential pressure generator, comprising a motor group base 1, a differential pressure generator 2 is fixedly installed on the top of the motor group base 1, a motor control box 3 is fixedly installed on the top of the differential pressure generator 2, a rectifier control device 4 is arranged on the front side of the motor control box 3, the rectifier control device 4 comprises a rectifier control box body 41, the rectifier control box body 41 is fixedly installed on the front side of the motor control box 3, a generator cable 31 is fixedly connected to the front output end of the motor control box 3, a line inlet hole 44 penetrating to the inner cavity is opened on the rear side of the rectifier control box body 41, the generator cable 31 penetrates the line inlet hole 44 to the inner cavity of the rectifier control box body 41, a movable door 42 is movably installed on the front side of the rectifier control box body 41, a control mechanism 43 is fixedly installed on the rear side of the inner wall of the rectifier control box body 41, an air inlet mechanism 45 is arranged on the bottom of the rectifier control box body 41, and an air outlet mechanism 46 is arranged on the top of the rectifier control box body 41;

[0033] When the differential pressure generator 2 generates electricity under the output of natural gas, the current passes through the generator cable 31 at the front end of the motor control box 3 and is connected to the control mechanism 43 in the inner cavity of the rectifier control box 41. The interior of the rectifier control box 41 can be inspected and repaired at any time by opening the movable door 42. The rectifier control box 41 can cooperate with the air inlet mechanism 45 and the air outlet mechanism 46 to dissipate heat when working.

[0034] like Figure 3 As shown, the control mechanism 43 includes a fixed square box 431, which is located in the upper and lower through-mechanism, a wire bracket 432 is fixedly installed at the lower left side of the inner wall of the fixed square box 431, a control circuit board 433 is fixedly installed at the rear side of the inner wall of the fixed square box 431, and a cable connector 434 is fixedly installed at the left side of the front end of the control circuit board 433. The output end of the generator cable 31 passes through the top of the wire bracket 432 and is electrically connected to the bottom of the cable connector 434. The control circuit board 433 A rectifier bridge 435 is electrically connected to the middle of the front end of the control circuit board 433, a varistor 436 is electrically connected to the rectifier bridge 435 on the right side of the front end, and the varistor 436 is electrically connected to the rectifier bridge 435. The right side of the front end of the control circuit board 433 is electrically connected to three output wires 437, and the output ends of the three output wires 437 are electrically connected to output wires 438, and the three output wires 438 are all extended to the right side of the fixed square box 431, and the three output wires 438 are extended to the right side of the rectifier control box 41;

[0035] The cable connector 434 in the inner cavity of the fixed square box 431 included in the control mechanism 43 can be connected to the generator cable 31 entering the inner cavity of the rectifier control box 41. The current will pass through the rectifier bridge 435 on the control circuit board 433. The rectifier bridge 435 is composed of four diodes and is used to convert alternating current into direct current. The current will also pass through the varistor 436. The varistor 436 can protect other sensitive electronic components in the circuit from damage by overvoltage. By utilizing the nonlinear characteristics of semiconductor materials, when the voltage exceeds a specific value, its resistance value will decrease sharply, thereby allowing a large amount of current to pass through, while limiting the voltage within a safe range to prevent the voltage from being abnormally large. Finally, the output wire 438 connected by three output wires 437 is used for output.

[0036] like Figure 4 , Figure 5As shown, the air inlet mechanism 45 includes an air inlet box 451, which is fixedly mounted on the bottom of the rectifier control box 41 and communicates with the inner cavity of the rectifier control box 41, three inlet fans 452 are fixedly mounted on the inner wall of the air inlet box 451, and an air inlet filter plate 453 is fixedly mounted on the bottom of the inner wall of the air inlet box 451. The air outlet mechanism 46 includes an air outlet box 461, which is fixedly mounted on the top of the rectifier control box 41 and communicates with the inner cavity of the rectifier control box 41, three outlet fans 462 are fixedly mounted on the inner wall of the air outlet box 461, and a protective wire mesh plate 463 is fixedly mounted on the top of the air outlet box 461, and the protective wire mesh plate 463 is located above the three outlet fans 462;

[0037] The heat emitted by the varistor 436 and other electronic components in the inner cavity of the fixed square box 431 when working is blown into the inner cavity of the rectifier control box 41 by starting the three inlet fans 452 on the inner wall of the air inlet mechanism 45, and the downward air from the rectifier control box 41 is filtered through the air inlet filter plate 453. The fixed square box 431 that passes through the upper and lower parts is used to blow into the inner cavity of the fixed square box 431 to blow the heat emitted from the inner cavity of the fixed square box 431 upward, and at the same time, the three outlet fans 462 in the inner cavity of the air outlet box 461 above the rectifier control box 41 are started, so that the heat emitted from the fixed square box 431 can be quickly discharged, and a rapid air circulation is formed between the inlet fans 452, so as to achieve rapid cooling of the electronic components in the fixed square box 431 and improve the service life.

[0038] The following is the specific working principle of the natural gas differential pressure generator rectification control device.

[0039] like Figure 1-5As shown, when the differential pressure generator 2 generates electricity under the output of natural gas, the current passes through the generator cable 31 at the front end of the motor control box 3 and is connected to the control mechanism 43 in the inner cavity of the rectifier control box 41. The connection is made using the cable connector 434 in the inner cavity of the fixed square box 431 included in the control mechanism 43. The current passes through the rectifier bridge 435 on the control circuit board 433. The rectifier bridge 435 is composed of four diodes and is used to convert alternating current into direct current. The converted current also passes through the varistor 436. The varistor 436 can protect other sensitive electronic components in the circuit from being damaged by overvoltage. By utilizing the nonlinear characteristics of semiconductor materials, when the voltage exceeds a specific value, its resistance value will decrease sharply, thereby allowing a large amount of current to pass through, while limiting the voltage within a safe range to prevent the voltage from being abnormally large. The output power conductor 438 connected by three output wires 437 is then used for output. At the same time, the heat emitted by the varistor 436 and other electronic components in the inner cavity of the fixed square box 431 during operation is blown into the inner cavity of the rectifier control box 41 after being filtered by the air inlet filter plate 453 by starting the three inlet fans 452 on the inner wall of the air inlet mechanism 45. The fixed square box 431 that passes through from top to bottom is used to blow into the inner cavity of the fixed square box 431 to blow the heat emitted from the inner cavity of the fixed square box 431 upward. At the same time, the three outlet fans 462 in the inner cavity of the air outlet box 461 above the rectifier control box 41 are started to quickly discharge the heat emitted from the fixed square box 431, and form a rapid air circulation between the inlet fans 452, so as to quickly cool down the electronic components in the fixed square box 431 and improve their service life.

[0040] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A natural gas differential pressure generator rectification control device, characterized in that: The invention comprises a rectifier control device (4), wherein the rectifier control device (4) comprises a rectifier control box (41), a control mechanism (43), an air inlet mechanism (45) and an air outlet mechanism (46); the control mechanism (43) is mounted on the rear side of the inner wall of the rectifier control box (41); the control mechanism (43) comprises a fixed square box (431) which passes through the upper and lower parts; electronic components are mounted in the fixed square box (431); the bottom of the rectifier control box (41) is provided with an air inlet mechanism (45); and the top of the rectifier control box (41) is provided with an air outlet mechanism (46).

2. A natural gas differential pressure generator rectification control device according to claim 1, characterized in that: It also includes a differential pressure generator (2) and a motor control box (3), and the rectification control device (4) is connected to the motor control box (3) via a generator cable (31).

3. A natural gas differential pressure generator rectification control device according to claim 1, characterized in that: A movable door (42) is movably installed on the front side of the rectification control box (41).

4. A natural gas differential pressure generator rectification control device according to claim 1, characterized in that: The fixed square box (431) is provided with electronic components including a control circuit board (433), a rectifier bridge (435) and a varistor (436); the rectifier bridge (435) and the varistor (436) are both electrically connected to the control circuit board (433), and the varistor (436) is electrically connected to the rectifier bridge (435).

5. A natural gas differential pressure generator rectification control device according to claim 1, characterized in that: The control mechanism (43) further comprises a cable connector (434), an output line (437) and an output conductor (438); the cable connector (434) is fixed on the control circuit board (433); the control circuit board (433) is electrically connected to the output line (437); and the output end of the output line (437) is electrically connected to the output conductor (438).

6. A natural gas differential pressure generator rectification control device according to claim 5, characterized in that: A wire support (432) is installed on the inner wall of the fixed square box (431) below the cable connector (434).

7. A natural gas differential pressure generator rectification control device according to claim 1, characterized in that: The air intake mechanism (45) comprises an air intake box (451) and an air intake fan (452); the air intake box (451) is fixedly mounted on the bottom of the rectifier control box (41) and is in communication with the inner cavity of the rectifier control box (41); and the air intake fan (452) is fixedly mounted on the inner wall of the air intake box (451).

8. A natural gas differential pressure generator rectification control device according to claim 7, characterized in that: An air inlet filter plate (453) is fixedly mounted on the bottom of the inner wall of the air inlet box (451).

9. A natural gas differential pressure generator rectification control device according to claim 1, characterized in that: The air outlet mechanism (46) comprises an air outlet box (461) and an air outlet fan (462); the air outlet box (461) is fixedly mounted on the top of the rectifier control box (41) and is in communication with the inner cavity of the rectifier control box (41); and the air outlet fan (462) is fixedly mounted on the inner wall of the air outlet box (461).

10. A natural gas differential pressure generator rectification control device according to claim 9, characterized in that: A protective wire mesh plate (463) is fixedly mounted on the top of the air outlet box (461).

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