Gas supply system and method for LNG gas generator set

Abstract

The present invention discloses a gas supply system and method for an LNG gas generator set, and relates to the technical field of gas supply systems, including: a gas supply assembly regulating component, which, in cooperation with the gas supply assembly regulating component, facilitates the overall multi-level regulation and control, real-time monitoring and active protection, and efficient gasification detection, thereby realizing an efficient and stable gas supply process, and forming intelligent collaborative work to ensure overall reliability and safety under high load conditions, and in cooperation with the pressure regulating and balancing gasification component, can form an active regulating balance according to the operation adjustment change of the gas supply assembly regulating component, ensure that under high load conditions, the pressure and flow in the LNG gasification process remain stable, can effectively cope with fluctuations under high load conditions, and improve the overall stability and reliability, and at the same time, in cooperation with the detection active protection component, can immediately perform glue repair after a leak is detected, thereby improving overall sealing and safety.

Description

Technical Field

[0001] The present invention relates to the technical field of gas supply systems, and in particular to a gas supply system and method for an LNG gas generator set. Background Art

[0002] The gas supply system of the gas-fired generator set usually uses a water bath heated vaporizer, an electric heated vaporizer or a steam heated vaporizer to heat the low-temperature liquid in the LNG storage tank to form gas and transport it to the gas-fired generator set for power generation.

[0003] However, in the prior art, during the gas supply operation of the LNG gas-fired power generation unit, the overall gasification operation may fail to meet the high exhaust volume during high-load operation due to the inability of the existing gasifier efficiency to meet the high exhaust volume. As a result, during the gasification operation, a large amount of fluid directly impacts the gasifier, making it impossible to effectively control the overall pressure of the gasification process, thereby resulting in low gasification efficiency and increased energy consumption. At the same time, in the traditional gas supply operation, although detection sensors can be installed to monitor the gas supply pipeline, when problems occur in the gas supply pipeline, they cannot be handled in time to ensure overall stability and safety. Therefore, it is necessary to propose a gas supply system and method for LNG gas-fired power generation units. Summary of the invention

[0004] The purpose of the present invention is to provide a gas supply system and method for an LNG gas generator set, so as to solve the problem proposed in the above background technology that during the gas supply operation of the LNG gas generator set, the overall gasification operation may be due to the fact that the existing gasifier efficiency may not be able to meet the high exhaust volume during high-load operation, resulting in a large amount of fluid directly impacting the gasifier during the gasification operation, so that the overall pressure of the gasification process cannot be effectively controlled, thereby resulting in low gasification efficiency and increased energy consumption. At the same time, in traditional gas supply operations, although detection sensors can be installed to monitor the gas supply pipeline, when there is a problem with the gas supply in the pipeline, it cannot be handled in time to ensure the overall stability and safety.

[0005] To achieve the above object, the present invention provides the following technical solution: a gas supply system for an LNG gas generator set, comprising:

[0006] The gas supply assembly adjustment component is installed on the inner side of the working gas supply protection frame to adjust and control the gasification process of LNG gas in a multi-stage manner to improve the gasification efficiency;

[0007] The pressure-regulating and balancing gasification component is installed on the bottom frame surface of the operating gas supply protection frame, and is used to adjust the operating adjustment amount of the gas supply assembly adjustment component to form an active adjustment balance to ensure that the pressure and flow rate of the LNG gasification process remain stable under high load conditions;

[0008] The active protection detection component is installed on the other side surface of the inner wall of the working air supply protection frame, and can monitor the operation of the air supply assembly adjustment component and the pressure-regulating and balancing gasification component in real time through the ultrasonic detection sensor installed thereon, and form an active airtight protection operation for the working air supply structure by fixed-point positioning according to the monitoring feedback data;

[0009] The gasification detection box is installed on the top side of the working gas supply protection frame, and forms real-time monitoring through the gasification detection tube and the gas supply assembly adjustment component.

[0010] Preferably, the air supply assembly adjustment component includes:

[0011] LNG storage tank, fluid pressure detection valve, control pipeline, flow detection control valve and cryogenic pump, the LNG storage tank and cryogenic pump are fastened to the inner wall surface of the working gas supply protection frame through a hoop frame, the fluid pressure detection valve is installed on the outer peripheral side of the control pipeline, and the control pipeline and the bottom output end of the LNG storage tank are connected, the flow detection control valve is installed on the side of the cryogenic pump, and is used to monitor the control pipeline and the cryogenic pump, the bottom output end of the cryogenic pump is connected to a temperature control regulating valve pipe, and the side end of the temperature control regulating valve pipe is connected to an exhaust inlet and outlet valve pipe, the exhaust inlet and outlet valve pipe is set as an inlet and outlet double pipe, which is used to utilize an external high-efficiency heat exchanger, the top of the side end of the temperature control regulating valve pipe is connected to a gasification guide pipe, and the side end of the gasification guide pipe is connected to a gas adapter guide.

[0012] Preferably, a prediction controller is installed on the outer peripheral side of the side end of the gas adapter guide, and the side end of the gas adapter guide is connected with a graded three-way guide valve tube, the top and bottom ends of the graded three-way guide valve tube are respectively connected with the first microchannel heat exchange vaporizer and the second microchannel heat exchange vaporizer, a supercritical carbon dioxide circulation structure is installed on the internal top end of the first microchannel heat exchange vaporizer and the second microchannel heat exchange vaporizer, the side ends of the first microchannel heat exchange vaporizer and the second microchannel heat exchange vaporizer are both connected with a gasification double-trough guide control valve tube, and the bottom end of the gasification double-trough guide control valve tube is connected with a gasification impurity adsorber.

[0013] Preferably, the bottom side end of the gasification double-slot guide control valve pipe is connected to a gasification temperature regulator, the bottom end of the gasification temperature regulator is connected to a control intake valve pipe, the side end of the control intake valve pipe is connected to a high-efficiency cooler guide pipe, the top of the gasification temperature regulator is connected to a redundant gasification pipeline, the first microchannel heat exchange gasifier and the second microchannel heat exchange gasifier are connected through a circulation valve pipe, and the top of the first microchannel heat exchange gasifier is connected to an injection pipe.

[0014] Preferably, the side end of the injection pipe is connected to the redundant gasification pipeline, the middle section of the redundant gasification pipeline is connected to the secondary gas storage tank, the side end of the secondary gas storage tank is connected to the emergency shut-off valve pipe, the side end of the injection pipe is connected to the guide and discharge three-way valve pipe, the bottom end of the guide and discharge three-way valve pipe is connected to the discharge end, the discharge end is connected to the generator set through a multi-stage filtering structure, the top end of the guide and discharge three-way valve pipe is connected to the pressure detection and regulation pipe, and the bottom end of the pressure detection and regulation pipe is installed with a pressure relief control end.

[0015] Preferably, the pressure-regulating and balancing gasification component includes a monitoring and control box, a dual-control drive structure is installed at the bottom end of the monitoring and control box, and the dual-control drive structure is fastened to the inner bottom end surface of the working air supply protection frame through a fixed structure. The side end of the dual-control drive structure is connected to a pressure-regulating pump, and a detection control valve pipe is installed at the side end of the pressure-regulating pump. The top end of the pressure-regulating pump is connected to a circulating pressure-conducting and regulating pipe, and a pressure controller is installed at the top side end of the circulating pressure-conducting and regulating pipe.

[0016] Preferably, the top of the circulating pressure-conducting regulating pipe is connected to a regulator, the top of the regulator is connected to a monitoring valve pipe, the top of the monitoring valve pipe is connected to a balanced pressure guiding pipe, the side end of the balanced pressure guiding pipe is connected to a pressure balance monitor, the pressure balance monitor and the liquid level detection sensor and the pressure detection sensor inside the first microchannel heat exchange vaporizer and the second microchannel heat exchange vaporizer form an electromagnetic signal connection, the top of the pressure balance monitor is connected to a dynamic pressure control regulating pipe, and the side end of the dynamic pressure control regulating pipe is connected to the side end of the graded three-way guiding valve pipe.

[0017] Preferably, the detection active protection component includes a three-axis hinge guide rail, the top end of the three-axis hinge guide rail is fastened to the bottom end of the top wall of the working air supply protection frame, the bottom end of the three-axis hinge guide rail is slidably connected with a sliding position saddle, the side end of the sliding position saddle is installed with an axial motor, the side end of the axial motor is installed with a control shaft arm, the bottom side of the control shaft arm is installed with a control motor, the bottom end of the control motor is connected with a first gear, the side end of the first gear is meshed with a second gear, the bottom of the second gear is connected with a first extension main frame, the interior of the first extension main frame is installed with an active extension drive structure, the output end of the active extension drive structure is connected with a hinge pulley structure, and the side end of the hinge pulley structure is installed with a guide slide column.

[0018] Preferably, the bottom of the hinge pulley structure and the guide slide column is connected to a second extended sub-frame, the bottom of the second extended sub-frame is fastened with an airtight glue filling nozzle, an ultrasonic detection sensor is installed on the side end of the airtight glue filling nozzle, a glue injection box is installed on the side end of the airtight glue filling nozzle, the side end of the glue injection box is connected to a glue delivery pipe, and the bottom of the glue delivery pipe is connected to a glue pump box.

[0019] A method for a gas supply system of an LNG gas generator set comprises the following steps:

[0020] S1. First, the gasification gas supply process is completed through the gas supply assembly adjustment component, and according to the gasification degree, multi-level LNG gasification is dynamically formed to improve the gasification efficiency;

[0021] S2. Then, in cooperation with the pressure-regulating and balancing gasification component, an active regulating balance is formed according to the gasification regulating change of the gas supply assembly regulating component to ensure that the pressure and flow rate of the LNG gasification process remain stable under high load conditions;

[0022] S3. Secondly, during the overall operation, the detection active protection component is used to monitor the overall operation in real time, and according to the monitoring feedback data, the fixed point positioning is used to form an active airtight protection operation for the operation air supply structure;

[0023] S4. Afterwards, during the operation, the waste heat is used to preheat the feed LNG or for other purposes through the waste heat recovery structure, and the excess gas pressure energy in the first microchannel heat exchange vaporizer and the second microchannel heat exchange vaporizer is recovered through the turbine expander and converted into electrical energy or mechanical energy, so as to improve the energy utilization rate.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. In the present invention, in the cryogenic pump, the gasified natural gas enters the gas adapter guide through the gasification guide pipe under the cooperation of the gas supply assembly regulating component, and when operating therein, the prediction controller can predict and adjust the system parameters according to the real-time data to ensure the high efficiency and stability of the gasification process. Secondly, the gasified natural gas is distributed to the first microchannel heat exchange gasifier and the second microchannel heat exchange gasifier by using the graded three-way guide valve pipe, and the supercritical carbon dioxide circulation structure is used in the first microchannel heat exchange gasifier and the second microchannel heat exchange gasifier to effectively improve the heat exchange efficiency and ensure the high efficiency of the gasification process. Then, the gasified natural gas enters the gasification impurity adsorber through the gasification double-slot guide control valve pipe to remove impurities in the gas, and the gasification temperature controller can be used to adjust the gasified gas temperature to ensure that it is within an appropriate range. When the above-mentioned gas passes through the control air intake valve pipe and the high-efficiency cooler guide pipe for further cooling to meet the needs of subsequent gas operations, during the gasification operation, the gasification gas is further cooled by the gasification temperature controller to meet the needs of subsequent gas operations. A redundant gasification pipeline is used to provide a backup path, and gas is stored in a secondary gas storage tank to increase overall redundancy and safety. The emergency shut-off valve pipe can quickly cut off the gas source when an abnormality is detected to ensure overall safety of use. Afterwards, the injection pipe can inject LNG into the first microchannel heat exchange vaporizer through the secondary gas storage tank and the redundant gasification pipeline, or the gasified gas is guided to the discharge end through the guide and discharge three-way valve pipe, so that the discharge end can transport clean natural gas to the generator set through a multi-stage filtration structure, or the gasified gas is guided to the pressure detection and control pipe, so that the pressure detection and control pipe can monitor the system pressure in real time, and remove the pressure of the first microchannel heat exchange vaporizer and the second microchannel heat exchange vaporizer when necessary through the pressure relief control end, so as to ensure the safe operation of the system, and realize an efficient and stable gas supply process through multi-stage regulation and control, real-time monitoring and active protection, and efficient gasification detection as a whole, and form intelligent collaborative work to ensure overall reliability and safety under high load conditions.

[0026] 2. In the present invention, the dual-control drive structure provides power support according to the monitoring feedback of the liquid level detection sensor and the pressure detection sensor under the cooperation of the pressure regulating and balancing gasification component to ensure that the pressure controller of the pressure regulating pump operates, and starts working by detecting the control valve pipe and the circulating pressure-conducting and regulating pipe to dynamically adjust the pressure of the gas after gasification, and the pressure controller is installed on the top side end of the circulating pressure-conducting and regulating pipe to facilitate real-time monitoring of the pressure in the pipeline, and then the regulator pressure controller adjusts the pressure according to the data of the pressure controller to ensure that the pressure of the gas after gasification is within the set range, and then the monitoring valve pipe and the pressure balance monitor pressure controller are used to further monitor the gas flow to ensure whether the overall pressure and flow are consistent with those in the first microchannel heat exchange gasifier and the second microchannel heat exchange gasifier. The gasification pressure variable is used to form a controllable ratio. When there is a large change, the data collected by the pressure balance monitor and the monitoring valve pipe are transmitted to the external PLC controller for real-time adjustment of the overall operation, and dynamic pressure control and regulation are achieved by using the dynamic pressure control regulating pipe to ensure the stable operation of the whole under different working conditions. The side end of the dynamic pressure control regulating pipe is connected to the side end of the graded three-way guide valve pipe, and the flow direction and pressure of the gas can be adjusted as needed to the first microchannel heat exchange vaporizer and the second microchannel heat exchange vaporizer, so that the change is adjusted according to the operation of the gas supply assembly adjustment component to form an active adjustment balance, ensuring that under high load conditions, the pressure and flow in the LNG gasification process remain stable, which can effectively cope with fluctuations under high load conditions and improve the overall stability and reliability.

[0027] 3. In the present invention, by using the three-axis hinge guide rail to provide multi-dimensional three-axis movement capability for the related structures carried by the whole body in cooperation with the detection active protection component, that is, the sliding position saddle can be slidably connected to the bottom end of the three-axis hinge guide rail to support and drive the related structures to adjust synchronously. When adjusted to the preset position, the axial motor can drive the control shaft arm to monitor the operating status of the air supply assembly adjustment component and the pressure-balancing gasification component in real time according to the ultrasonic detection sensor, such as the point information of leakage in the pipeline and the connection part, so that the first gear and the second gear form a meshing connection, and transmit power to drive the first extended main frame and the related structures carried by it to adjust. Next, the guide support provided by the hinge pulley structure and the guide slide column is connected through the output end of the internal active extension drive structure to ensure that the second extended secondary frame can drive the airtight glue filling nozzle, glue pipe and glue pump box fastened at the bottom to be further extended and positioned at the first extended main frame, wherein the ultrasonic detection sensor monitors the leakage position in real time. The above-mentioned overall structure effectively ensures that it reaches the hard-to-reach areas. When the airtight glue filling nozzle moves to the leakage point, the glue injection box transports the glue filling material to the airtight glue filling nozzle through the glue pipe and the glue pump box, so that the airtight glue filling nozzle automatically performs glue filling operation according to the position feedback information, so as to quickly seal the leakage point and ensure the overall sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the main structure of a gas supply system of an LNG gas generator set of the present invention;

[0029] Figure 2 It is a schematic structural diagram of a side view of a gas supply system of an LNG gas generator set of the present invention;

[0030] Figure 3 This is a schematic diagram of the installation position structure of a gas supply assembly regulating component and a pressure regulating and balancing gasification component in a gas supply system of an LNG gas generator set of the present invention;

[0031] Figure 4 This is a structural schematic diagram of a pressure-regulating and balancing gasification component in a gas supply system of an LNG gas-fired generator set of the present invention;

[0032] Figure 5 It is a structural schematic diagram of a gas supply assembly regulating component in a gas supply system of an LNG gas generator set of the present invention;

[0033] Figure 6 It is a structural schematic diagram of an active protection component for detecting in a gas supply system of an LNG gas generator set of the present invention;

[0034] Figure 7 In a gas supply system of an LNG gas generator set of the present invention Figure 6 A schematic diagram of the enlarged structure at point A;

[0035] Figure 8 It is a partial structural schematic diagram of the detection active protection component in the gas supply system of an LNG gas generator set of the present invention.

[0036] In the figure: 1. Operation air supply protection frame; 2. Air supply assembly adjustment component; 21. LNG storage tank; 22. Fluid pressure detection valve; 23. Control pipeline; 24. Flow detection control valve; 25. Cryogenic pump; 26. Temperature control valve pipe; 27. Exhaust inlet and outlet valve pipe; 28. Gasification guide pipe; 29. ​​Gas adapter guide; 290. Prediction controller; 291. First microchannel heat exchange gasifier; 292. Second microchannel heat exchanger Hot gasifier; 293, gasification double-slot guide control valve pipe; 294, gasification impurity adsorber; 295, gasification temperature controller; 296, control intake valve pipe; 297, high-efficiency cooler guide pipe; 298, secondary gas storage tank; 299, redundant gasification pipeline; 2910, guide discharge three-way valve pipe; 2911, injection pipe; 2912, pressure relief control end; 2913, discharge end; 2914, emergency cut-off valve pipe; 291 5. Pressure detection and control pipe; 3. Gasification detection box; 4. Pressure-regulating and balancing gasification component; 41. Monitoring and control box; 42. Dual-control drive structure; 43. Pressure-regulating pump; 44. Detection and control valve pipe; 45. Circulation pressure-conducting and control pipe; 46. Pressure controller; 47. Regulator; 48. Monitoring valve pipe; 49. Balanced pressure guide pipe; 490. Pressure balance monitor; 491. Dynamic pressure control and regulation pipe; 5. Detection of active protection components; 51. Three-axis hinge guide rail; 52. Sliding position saddle; 53. Axial motor; 54. Control shaft arm; 55. Control motor; 56. First extension main frame; 57. Second extension secondary frame; 58. Airtight glue filling nozzle; 59. Glue injection box; 590. Glue delivery hose; 591. Glue pump box; 592. First gear; 593. Second gear; 594. Guide slide column; 595. Active extension drive structure; 596. Hinge pulley structure. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Reference Figure 1 - Figure 8 As shown: A gas supply system for an LNG gas generator set, comprising:

[0039] The gas supply assembly regulating component 2 is installed on the inner side of the working gas supply protection frame 1 and is used for multi-stage regulating and controlling the gasification process of LNG gas to improve the gasification efficiency;

[0040] The pressure-regulating and balancing gasification component 4 is installed on the bottom frame surface of the working gas supply protection frame 1, and is used to form an active adjustment balance according to the operation adjustment change of the gas supply assembly adjustment component 2, so as to ensure that the pressure and flow rate in the LNG gasification process remain stable under high load conditions;

[0041] The active detection protection component 5 is installed on the other side surface of the inner wall of the working air supply protection frame 1, and can monitor the operation of the air supply assembly adjustment component 2 and the pressure-regulating and balancing gasification component 4 in real time through the ultrasonic detection sensor installed thereon, and form an active airtight protection operation for the working air supply structure by fixed-point positioning according to the monitoring feedback data;

[0042] The gasification detection box 3 is installed on the top side of the working gas supply protection frame 1, and forms real-time monitoring through the gasification detection tube and the gas supply assembly adjustment component 2.

[0043] In the present invention, according to Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the air supply assembly adjustment component 2 includes:

[0044] LNG storage tank 21, fluid pressure detection valve 22, control pipeline 23, flow detection control valve 24 and cryogenic pump 25. The LNG storage tank 21 and the cryogenic pump 25 are fastened to the inner wall surface of the working gas supply protection frame 1 through a hoop frame. The fluid pressure detection valve 22 is installed on the outer peripheral side of the control pipeline 23, and the control pipeline 23 and the bottom output end of the LNG storage tank 21 are connected. The flow detection control valve 24 is installed on the side of the cryogenic pump 25 for monitoring the control pipeline 23 and the cryogenic pump 25. The bottom output end of the cryogenic pump 25 is connected with a temperature control regulating valve pipe 26, and the side end of the temperature control regulating valve pipe 26 is connected with an exhaust inlet and outlet valve pipe 27. The exhaust inlet and outlet valve pipe 27 is set as an inlet and outlet double pipe for utilizing an external high-efficiency heat exchanger. The top of the side end of the temperature control regulating valve pipe 26 is connected with a gasification guide pipe 28, and the side end of the gasification guide pipe 28 is connected with a gas adapter guide 29.

[0045] A prediction controller 290 is installed on the outer peripheral side of the side end of the gas adapter guide 29, and the side end of the gas adapter guide 29 is connected with a graded three-way guide valve pipe, and the top and bottom ends of the graded three-way guide valve pipe are respectively connected with the first microchannel heat exchange vaporizer 291 and the second microchannel heat exchange vaporizer 292, and a supercritical carbon dioxide circulation structure is installed on the internal top ends of the first microchannel heat exchange vaporizer 291 and the second microchannel heat exchange vaporizer 292, and the side ends of the first microchannel heat exchange vaporizer 291 and the second microchannel heat exchange vaporizer 292 are both connected with a gasification double-trough guide control valve pipe 293, and the bottom end of the gasification double-trough guide control valve pipe 293 is connected with a gasification impurity adsorber 294.

[0046] The bottom side end of the gasification double-slot guide control valve tube 293 is connected to the gasification temperature regulator 295, the bottom end of the gasification temperature regulator 295 is connected to the control intake valve tube 296, the side end of the control intake valve tube 296 is connected to the high-efficiency cooler guide pipe 297, the top of the gasification temperature regulator 295 is connected to the redundant gasification pipeline 299, the first microchannel heat exchange gasifier 291 and the second microchannel heat exchange gasifier 292 are connected through the circulation valve tube, and the top of the first microchannel heat exchange gasifier 291 is connected to the injection pipe 2911.

[0047] The side end of the injection pipe 2911 is connected to the redundant gasification pipeline 299, the middle section of the redundant gasification pipeline 299 is connected to the secondary gas storage tank 298, the side end of the secondary gas storage tank 298 is connected to the emergency shut-off valve pipe 2914, the side end of the injection pipe 2911 is connected to the guide and discharge three-way valve pipe 2910, the bottom end of the guide and discharge three-way valve pipe 2910 is connected to the discharge end 2913, the discharge end 2913 is connected to the generator set through a multi-stage filtering structure, the top end of the guide and discharge three-way valve pipe 2910 is connected to the pressure detection and control pipe 2915, and the bottom end of the pressure detection and control pipe 2915 is installed with a pressure relief control end 2912.

[0048] In a specific solution, the LNG gas in the LNG storage tank 21 is first extracted by the cryogenic pump 25 through the control pipeline 23, and the fluid pressure detection valve 22 is used to monitor the pressure of the LNG in real time to ensure that it is within a safe range, and the flow rate of the LNG is monitored and controlled in cooperation with the flow detection control valve 24 to ensure a stable supply. Then, after the LNG is temperature-controlled by the temperature control regulating valve pipe 26, the regulated LNG can be connected to the external high-efficiency heat exchanger through the exhaust inlet and outlet valve pipe 27, and the gasification process begins. After that, in the cryogenic pump 25, the gasified natural gas enters the gas adapter guide 29 through the gasification guide pipe 28, and when operating therein, the preheating process is performed. The measurement controller 290 can predict and adjust system parameters according to real-time data to ensure the efficiency and stability of the gasification process. Secondly, the gasified natural gas is distributed to the first microchannel heat exchange gasifier 291 and the second microchannel heat exchange gasifier 292 by using a graded three-way guide valve pipe, and the supercritical carbon dioxide circulation structure is used in the first microchannel heat exchange gasifier 291 and the second microchannel heat exchange gasifier 292 to effectively improve the heat exchange efficiency and ensure the efficiency of the gasification process. Then, the gasified natural gas enters the gasification impurity adsorber 294 through the gasification double-slot guide control valve pipe 293 to remove impurities in the gas, and the gasification temperature controller 295 can be used to adjust the gasification gas temperature to ensure To ensure that it is within an appropriate range, when the above-mentioned gas passes through the control inlet valve pipe 296 and the high-efficiency cooler guide pipe 297 for further cooling to meet the needs of subsequent gas operations, during the gasification operation, the redundant gasification pipeline 299 is used to provide a backup path, and the gas is stored through the secondary gas storage tank 298 to increase the overall redundancy and safety, and the emergency cut-off valve pipe 2914 can quickly cut off the gas source when an abnormality is detected to ensure the overall safety of use. Afterwards, through the secondary gas storage tank 298 and the redundant gasification pipeline 299, the injection pipe 2911 can inject LNG into the first microchannel heat exchange gasifier 291, or the gasified gas is guided to the exhaust through the guide exhaust three-way valve pipe 2910. The delivery end 2913 is convenient for the discharge end 2913 to transport clean natural gas to the generator set through a multi-stage filtration structure, or to guide the gasified gas to the pressure detection and control pipe 2915, so that the pressure detection and control pipe 2915 can monitor the system pressure in real time, and remove the pressure of the first microchannel heat exchange vaporizer 291 and the second microchannel heat exchange vaporizer 292 through the pressure relief control end 2912 when necessary, to ensure the safe operation of the system, and to achieve an efficient, safe and stable gas supply process through multi-stage regulation and control, active regulation and balance, real-time monitoring and active protection, and efficient gasification detection as a whole, and form intelligent collaborative work to ensure overall reliability and safety under high load conditions.

[0049] In the present invention, according to Figure 1 - Figure 4As shown, the pressure-regulating and balancing gasification component 4 includes a monitoring and control box 41, and a dual-control drive structure 42 is installed at the bottom end of the monitoring and control box 41. The dual-control drive structure 42 is fastened to the inner bottom end surface of the working air supply protection frame 1 through a fixed structure, and the side end of the dual-control drive structure 42 is connected to a pressure-regulating pump 43. A detection control valve pipe 44 is installed at the side end of the pressure-regulating pump 43. The top end of the pressure-regulating pump 43 is connected to a circulating pressure-conducting and regulating pipe 45, and a pressure controller 46 is installed at the top side end of the circulating pressure-conducting and regulating pipe 45.

[0050] The top of the circulating pressure guiding control pipe 45 is connected to the regulator 47, the top of the regulator 47 is connected to the monitoring valve pipe 48, the top of the monitoring valve pipe 48 is connected to the balanced pressure guiding pipe 49, the side end of the balanced pressure guiding pipe 49 is connected to the pressure balance monitor 490, the pressure balance monitor 490 and the liquid level detection sensor and the pressure detection sensor inside the first microchannel heat exchange vaporizer 291 and the second microchannel heat exchange vaporizer 292 form an electromagnetic signal connection, the top of the pressure balance monitor 490 is connected to the dynamic pressure control regulating pipe 491, and the side end of the dynamic pressure control regulating pipe 491 is connected to the side end of the graded three-way guiding valve pipe.

[0051] In a specific solution, during the operation of the above-mentioned gas supply assembly regulating component 2, the dual-control drive structure 42 provides power support based on the monitoring feedback of the liquid level detection sensor and the pressure detection sensor to ensure that the pressure regulating pump 43 operates, and starts working by detecting the control valve pipe 44 and the circulating pressure regulating pipe 45 to dynamically adjust the pressure of the gas after gasification, and the pressure controller 46 is installed on the top side end of the circulating pressure regulating pipe 45 to facilitate real-time monitoring of the pressure in the pipeline, and then the regulator 47 adjusts the pressure according to the data of the pressure controller 46 to ensure that the pressure of the gas after gasification is within the set range, and then the monitoring valve pipe 48 and the pressure balance monitor 490 are used to further monitor the gas. Flow, ensure the overall pressure and flow, and whether it forms a controllable ratio with the vaporization pressure variables in the above-mentioned first microchannel heat exchange vaporizer 291 and the second microchannel heat exchange vaporizer 292. When there is a large change, the data collected by the pressure balance monitor 490 and the monitoring valve pipe 48 are transmitted to the external PLC controller for real-time adjustment of the overall operation, and the dynamic pressure control regulating pipe 491 is used to realize dynamic pressure regulation to ensure the overall stable operation under different working conditions, and the side end of the dynamic pressure control regulating pipe 491 is connected to the side end of the graded three-way guide valve pipe, and the flow direction and pressure of the gas can be adjusted to the above-mentioned first microchannel heat exchange vaporizer 291 and the second microchannel heat exchange vaporizer 292 as needed.

[0052] In the present invention, according to Figure 1 , Figure 2 , Figure 6 - Figure 8As shown, the detection active protection component 5 includes a three-axis hinge guide rail 51, the top of the three-axis hinge guide rail 51 is fastened to the bottom end of the top wall of the working air supply protection frame 1, the bottom end of the three-axis hinge guide rail 51 is slidably connected with a sliding position saddle 52, the side end of the sliding position saddle 52 is installed with an axial motor 53, the side end of the axial motor 53 is installed with a control shaft arm 54, the bottom side of the control shaft arm 54 is installed with a control motor 55, the bottom end of the control motor 55 is connected with a first gear 592, the side end of the first gear 592 is meshed with a second gear 593, the bottom of the second gear 593 is connected with a first extension main frame 56, the inside of the first extension main frame 56 is installed with an active extension drive structure 595, the output end of the active extension drive structure 595 is connected with a hinge pulley structure 596, and the side end of the hinge pulley structure 596 is installed with a guide slide column 594.

[0053] The bottom of the hinge pulley structure 596 and the guide slide column 594 are connected to the second extended sub-frame 57, and the bottom of the second extended sub-frame 57 is fastened with an airtight glue filling nozzle 58. The ultrasonic detection sensor is installed on the side end of the airtight glue filling nozzle 58. The side end of the airtight glue filling nozzle 58 is installed with a glue injection box 59. The side end of the glue injection box 59 is connected to a glue delivery pipe 590, and the bottom of the glue delivery pipe 590 is connected to a glue pump box 591.

[0054] In a specific solution, a three-axis hinge guide rail 51 is installed at the bottom end of the top wall of the working air supply protection frame 1, providing multi-dimensional three-axis movement capability for the related structures carried by the whole, that is, the sliding position saddle 52 can be slidably connected to the bottom end of the three-axis hinge guide rail 51, supporting and driving the related structures to be adjusted synchronously. When adjusted to the preset position, the axial motor 53 can drive the control shaft arm 54 to monitor the operating status of the air supply assembly adjustment component 2 and the pressure-balancing gasification component 4 in real time according to the ultrasonic detection sensor, such as the point information of leakage in the pipeline and the connection part, so that the first gear 592 and the second gear 593 form a meshing connection, transmit power to drive the first extended main frame 56 and the related structures carried by it to adjust, and then, through Through the guide support provided by the hinge pulley structure 596 and the guide slide column 594 connected to the output end of the active extension drive structure 595 inside, it is ensured that the second extended secondary frame 57 can drive the airtight glue filling nozzle 58, the glue pipe 590, and the glue pump box 591 fastened to the bottom, and further extend and position them at the first extended main frame 56, wherein the ultrasonic detection sensor monitors the leakage position in real time. The above-mentioned overall structure effectively ensures that it reaches the hard-to-reach areas. When the airtight glue filling nozzle 58 moves to the leakage point, the glue injection box 59 transports the glue filling material to the airtight glue filling nozzle 58 through the glue pipe 590 and the glue pump box 591, so that the airtight glue filling nozzle 58 automatically performs glue filling operations according to the position feedback information, so as to quickly seal the leakage point and ensure the overall sealing.

[0055] The wiring diagram of the fluid pressure detection valve 22, flow detection control valve 24, prediction controller 290, pressure controller 46, pressure balance monitor 490, regulator 47, detection control valve tube 44 and monitoring valve tube 48 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use, so the control method and wiring arrangement of the fluid pressure detection valve 22, flow detection control valve 24, prediction controller 290, pressure controller 46, pressure balance monitor 490, regulator 47, detection control valve tube 44 and monitoring valve tube 48 will no longer be explained in detail.

[0056] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas supply system for an LNG gas generator set, characterized in that: Included are: A gas supply assembly regulating component (2), which is installed on the inner side of the working gas supply protection frame (1) and is used for multi-stage regulating and controlling the gasification process of LNG gas; A pressure-regulating and balancing gasification component (4) is mounted on the bottom frame surface of the operating air supply protection frame (1) and is used to form an active regulating balance according to the operating regulating variation of the air supply assembly regulating component (2); An active detection protection component (5) is installed on the other side surface of the inner wall of the working air supply protection frame (1), and can monitor the operation of the air supply assembly adjustment component (2) and the pressure regulating and balancing gasification component (4) in real time through the ultrasonic detection sensor installed thereon, and based on the monitoring feedback data, it can position the working air supply structure at a fixed point to form an active airtight protection operation; A gasification detection box (3) is installed on the top side of the working gas supply protection frame (1) and forms real-time monitoring through a gasification detection tube and a gas supply assembly adjustment component (2); The air supply assembly regulating component (2) comprises: An LNG storage tank (21), a fluid pressure detection valve (22), a control pipeline (23), a flow detection control valve (24) and a cryogenic pump (25), wherein the LNG storage tank (21) and the cryogenic pump (25) are both fastened to the inner wall surface of the working gas supply protection frame (1) via a hoop frame, the fluid pressure detection valve (22) is installed on the outer peripheral side of the control pipeline (23) and is arranged so that the control pipeline (23) and the bottom output end of the LNG storage tank (21) are connected, and the flow detection control valve (24) is installed at the cryogenic The side of the pump (25) is used to monitor the control pipeline (23) and the cryogenic pump (25); the bottom output end of the cryogenic pump (25) is connected to a temperature control regulating valve pipe (26); the side end of the temperature control regulating valve pipe (26) is connected to an exhaust inlet and outlet valve pipe (27); the exhaust inlet and outlet valve pipe (27) is configured as an inlet and outlet double pipe for utilizing an external high-efficiency heat exchanger; the top of the side end of the temperature control regulating valve pipe (26) is connected to a gasification guide pipe (28); the side end of the gasification guide pipe (28) is connected to a gas adapter guide (29); A prediction controller (290) is installed on the outer peripheral side of the side end of the gas adapter guide (29); the side end of the gas adapter guide (29) is connected to a graded three-way guide valve pipe; the top and bottom ends of the graded three-way guide valve pipe are respectively connected to a first microchannel heat exchange gasifier (291) and a second microchannel heat exchange gasifier (292); a supercritical carbon dioxide circulation structure is installed on the top ends of the first microchannel heat exchange gasifier (291) and the second microchannel heat exchange gasifier (292); the side ends of the first microchannel heat exchange gasifier (291) and the second microchannel heat exchange gasifier (292) are both connected to a gasification double-trough guide control valve pipe (293); the bottom end of the gasification double-trough guide control valve pipe (293) is connected to a gasification impurity adsorber (294); The bottom side end of the gasification double-slot guide control valve pipe (293) is connected to a gasification temperature controller (295), the bottom end of the gasification temperature controller (295) is connected to a control air intake valve pipe (296), the side end of the control air intake valve pipe (296) is connected to a high-efficiency cooler guide pipe (297), the top end of the gasification temperature controller (295) is connected to a redundant gasification pipeline (299), the first microchannel heat exchange gasifier (291) and the second microchannel heat exchange gasifier (292) are connected via a circulation valve pipe, and the top of the first microchannel heat exchange gasifier (291) is connected to an injection pipe (2911); The side end of the injection pipe (2911) is connected to the redundant gasification pipeline (299); the middle section of the redundant gasification pipeline (299) is connected to the secondary gas storage tank (298); the side end of the secondary gas storage tank (298) is connected to the emergency cut-off valve pipe (2914); the side end of the injection pipe (2911) is connected to the guide and discharge three-way valve pipe (2910); the bottom end of the guide and discharge three-way valve pipe (2910) is connected to the discharge end (2913); the discharge end (2913) is connected to the generator set via a multi-stage filtering structure; the top end of the guide and discharge three-way valve pipe (2910) is connected to the pressure detection and control pipe (2915); the bottom end of the pressure detection and control pipe (2915) is provided with a pressure relief control end (2912); The pressure-regulating and balancing gasification component (4) comprises a monitoring and control box (41), a dual-control driving structure (42) is installed at the bottom end of the monitoring and control box (41), the dual-control driving structure (42) is fixedly installed on the inner bottom end surface of the working air supply protection frame (1) through a fixing structure, the side end of the dual-control driving structure (42) is connected to a pressure-regulating pump (43), the side end of the pressure-regulating pump (43) is installed with a detection control valve pipe (44), the top end of the pressure-regulating pump (43) is connected to a circulating pressure-conducting and regulating pipe (45), and the top side end of the circulating pressure-conducting and regulating pipe (45) is installed with a pressure controller (46); The top of the circulating pressure guiding and regulating pipe (45) is connected to a regulator (47), the top of the regulator (47) is connected to a monitoring valve pipe (48), the top of the monitoring valve pipe (48) is connected to a balanced pressure guiding pipe (49), the side end of the balanced pressure guiding pipe (49) is connected to a pressure balance monitor (490), the pressure balance monitor (490) and the liquid level detection sensor and the pressure detection sensor inside the first microchannel heat exchange vaporizer (291) and the second microchannel heat exchange vaporizer (292) form an electromagnetic signal connection, the top of the pressure balance monitor (490) is connected to a dynamic pressure control regulating pipe (491), and the side end of the dynamic pressure control regulating pipe (491) is connected to the side end of the graded three-way guiding valve pipe.

2. The gas supply system of the LNG gas generator set according to claim 1 is characterized in that: The detection active protection component (5) comprises a three-axis hinge rail (51), the top end of the three-axis hinge rail (51) is fixedly mounted on the bottom end of the top wall of the working air supply protection frame (1), the bottom end of the three-axis hinge rail (51) is slidably connected to a sliding position saddle (52), the side end of the sliding position saddle (52) is mounted with an axial motor (53), the side end of the axial motor (53) is mounted with a control shaft arm (54), the bottom end side of the control shaft arm (54) is mounted with a control motor (55), and the control shaft arm (54) is mounted with a control motor (55). The bottom end of the braking motor (55) is connected to a first gear (592), the side end of the first gear (592) is meshingly connected to a second gear (593), the bottom of the second gear (593) is connected to a first extension main frame (56), an active extension drive structure (595) is installed inside the first extension main frame (56), the output end of the active extension drive structure (595) is connected to a hinge pulley structure (596), and a guide slide column (594) is installed on the side end of the hinge pulley structure (596).

3. The gas supply system of the LNG gas generator set according to claim 2 is characterized in that: The bottom of the hinge pulley structure (596) and the guide slide column (594) is connected to a second extended sub-frame (57), the bottom of the second extended sub-frame (57) is fastened to an airtight glue filling nozzle (58), an ultrasonic detection sensor is mounted on the side end of the airtight glue filling nozzle (58), a glue injection box (59) is mounted on the side end of the airtight glue filling nozzle (58), the side end of the glue injection box (59) is connected to a glue delivery pipe (590), and the bottom of the glue delivery pipe (590) is connected to a glue pump box (591).

4. A method for a gas supply system of an LNG gas generator set, characterized in that: The gas supply system using the LNG gas generator set according to claim 3 comprises the following steps: S1. First, the gasification gas supply process is completed through the gas supply assembly adjustment component (2), and multi-stage LNG gasification is dynamically formed according to the gasification degree; S2, then, in cooperation with the pressure regulating and balancing gasification component (4), an active regulating balance is formed according to the gasification regulating change amount of the gas supply assembly regulating component (2); S3. Secondly, during the overall operation, the detection active protection component (5) is used to monitor the overall operation in real time, and based on the monitoring feedback data, the operation air supply structure is positioned at a fixed point to form an active airtight protection operation; S4. Afterwards, during the operation, the waste heat is used to preheat the feed LNG through the waste heat recovery structure, and the excess gas pressure energy in the first microchannel heat exchange vaporizer (291) and the second microchannel heat exchange vaporizer (292) is recovered through the turbine expander and converted into electrical energy or mechanical energy, thereby improving energy utilization.

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