LNG gas generator set

Abstract

The utility model discloses an LNG (Liquefied Natural Gas) gas generator set, which relates to the technical field of generator sets and comprises a gas chamber and a set chamber, the bottom of the outer surface of the gas chamber is provided with a liquid adding port, an LNG bottle group is fixed inside the gas chamber through a fixing component, and a liquid outlet of the LNG bottle group is connected with a first vaporizer. The first vaporizer is connected with the second vaporizer through a first pipeline, the second vaporizer is connected with the pressure regulating assembly through a second pipeline, a power generation assembly is fixed in the unit chamber, the pressure regulating assembly is connected with the power generation assembly through a third pipeline, and an engine in the power generation assembly is connected with an inlet of the second vaporizer. An outlet of the second vaporizer is connected with a radiator in the power generation assembly, and the radiator is connected with the engine. The LNG gas generator set can continuously and reliably supply power to a load in an extremely cold area.

Description

Technical Field

[0001] The utility model relates to the technical field of generator sets, and in particular to an LNG gas generator set. Background Art

[0002] With the rapid development of society, the requirements for power supply technology are getting higher and higher. Engineering projects in the fields of construction, communications, mining, road construction, forest areas, farmland irrigation, field construction and national defense engineering are mostly located in mountains, rural areas and remote areas far away from cities, with inconvenient transportation, poor environmental conditions and shortage of technical personnel. Especially in extremely cold conditions, most generators are difficult to generate electricity continuously due to the low temperature. Therefore, it is urgent to design a generator set to solve the problem of unsustainable power generation under existing extremely cold conditions. Utility Model Content

[0003] In order to solve the problems existing in the above-mentioned prior art, the utility model provides an LNG (liquefied natural gas) gas generator set, which includes a gas chamber and a unit chamber, a liquid filling port is provided at the bottom of the outer surface of the gas chamber, an LNG bottle group is fixed to the inside of the gas chamber through a fixing assembly, a liquid outlet of the LNG bottle group is connected to a first vaporizer, the first vaporizer is connected to a second vaporizer through a first pipe, the second vaporizer is connected to a pressure regulating assembly through a second pipe, a power generation assembly is fixed inside the unit chamber, the pressure regulating assembly is connected to the power generation assembly through a third pipe, an engine in the power generation assembly is connected to the inlet of the second vaporizer, the outlet of the second vaporizer is connected to a radiator in the power generation assembly, and the radiator is connected to the engine.

[0004] The utility model is realized by the following technical scheme: when the generator set is initially operated, the natural gas flow required for the power generation component is small, so the liquefied natural gas in the LNG bottle group is gasified by the first vaporizer and then passes through the second vaporizer, but the second vaporizer is not working at this time, and then the gasified natural gas is filtered and pressure-regulated by the pressure regulating component to reach the rated voltage required by the engine in the generator assembly. After the engine is successfully started, the cylinder jacket water temperature in the engine reaches a certain temperature and the cylinder jacket water circulates to the second vaporizer to provide a heat source for the gasified natural gas, thereby improving the energy utilization rate. At the same time, when the heat of the cylinder jacket water in the engine exceeds the heat required by the second vaporizer, the radiator in the generator assembly is started to dissipate the excess heat, and the cylinder jacket water after heat dissipation is recirculated to the engine. When the generator is initially operated, the natural gas for starting the engine can be provided through the first vaporizer. After the engine is started, the cylinder jacket water in the engine is circulated to the second vaporizer to provide a heat source for the gasified natural gas. The excess heat of the cylinder jacket water is dissipated through the radiator and finally circulated to the engine. Therefore, the LNG gas generator set in this technical scheme can operate continuously and reliably in extremely cold areas and supply power to the load all the time.

[0005] Furthermore, the first vaporizer is an air-temperature vaporizer.

[0006] Among them, the air-temperature vaporizer utilizes natural convection of air to heat the low-temperature liquid (liquefied natural gas) in the heat exchange tube, causing it to evaporate into gas. It is an efficient and energy-saving heat exchange equipment that integrates air-temperature and heating vaporization functions and can replace heating vaporization products.

[0007] Furthermore, the second vaporizer is a water bath vaporizer.

[0008] Among them, the water bath vaporizer is a device that vaporizes low-temperature liquid gas into gaseous gas by exchanging heat between hot water and low-temperature liquid gas.

[0009] Furthermore, the power generation component includes a generator, an engine and a radiator, the pressure regulating component is connected to the gas inlet of the engine through the third pipe, the generator is electrically connected to the engine, the hot water outlet of the engine is connected to the water bath evaporator through a fourth pipe, the water bath evaporator is connected to the inlet of the radiator through a fifth pipe, and the outlet of the radiator is connected to the engine through a sixth pipe.

[0010] Among them, when the generator set is initially running, LNG is gasified through the first vaporizer, and then filtered and pressure-regulated by the pressure regulating assembly. At this time, the second vaporizer does not work, and then the gasified natural gas filtered and pressure-regulated by the pressure regulating assembly is connected to the gas inlet of the engine through the third pipeline, thereby starting the engine. After the engine starts working, after the cylinder jacket water temperature in the engine reaches a certain temperature, the cylinder jacket water circulates to the water bath vaporizer through the fourth pipeline to provide a heat source for the vaporization of LNG, thereby improving energy utilization. When the heat of the cylinder jacket water exceeds the heat required by the water bath vaporizer, the cylinder jacket water circulates to the radiator through the fifth pipeline, and the radiator dissipates the excess heat of the cylinder jacket water. After the heat is dissipated, the cylinder jacket water in the radiator circulates to the engine through the sixth pipeline to cool the engine.

[0011] Furthermore, the unit also includes a controller and a liquid level sensor for monitoring the liquid level of the LNG bottle group, and the liquid level sensor is electrically connected to the controller.

[0012] Among them, since the conditions in extremely cold regions are relatively harsh, and the LNG gas generator set in this solution needs to achieve continuous and reliable operation in extremely cold regions, it is necessary to regularly replenish the LNG bottle group. Therefore, a liquid level sensor is installed to monitor the liquid level in the LNG bottle group and convert the liquid level information into an electrical signal and transmit it to the controller.

[0013] Furthermore, the unit also includes a battery sensor for monitoring the battery power, and the battery sensor is electrically connected to the controller.

[0014] In order to continuously supply power to the load, the generator set also includes a battery. The battery sensor is used to monitor the battery power. When it is detected that the battery power is too low, an electrical signal is generated and transmitted to the controller. The controller controls the generator set to start charging the battery. After charging is completed, the generator set shuts down and enters a waiting state.

[0015] Furthermore, the unit also includes an Internet of Things terminal, and the Internet of Things terminal is electrically connected to the controller.

[0016] Among them, the controller is electrically connected to the Internet of Things terminal, and the data collected by the controller is uploaded to the server through the Internet of Things terminal. The user can remotely view the operating status of the generator set through the server on the PC or mobile phone. Not only can the generator set be started and stopped remotely, but also whether the LNG bottle group is short of liquid can be observed.

[0017] Furthermore, the fixing assembly includes a support frame and a base, the top of the support frame is connected to the LNG bottle group, the bottom of the support frame is connected to the base, and the base is fixed to the bottom of the gas chamber.

[0018] Among them, the support frame and the base support the LNG bottle group.

[0019] Furthermore, a partition is provided between the gas chamber and the unit chamber, and a plurality of through holes for pipelines to pass through are reserved on the partition.

[0020] Among them, since power generation is carried out in extremely cold regions, the gas chamber and the unit chamber are connected through the through holes on the partition, and various pipelines are connected to the gas chamber and the unit chamber through these through holes, thereby reducing the heat loss caused by the pipelines being exposed to the external environment.

[0021] One or more technical solutions provided by the utility model have at least the following technical effects or advantages:

[0022] The utility model provides natural gas for starting the engine through a first vaporizer. After the engine is started, the cylinder jacket water in the engine is circulated to the second vaporizer to provide a heat source for gasifying the natural gas. The excess heat of the cylinder jacket water is dissipated through a radiator and finally circulated to the engine, thereby realizing continuous and reliable power generation of the LNG gas generator set in extremely cold areas.

[0023] The utility model realizes the remote start and stop of the generator set by setting up a controller, a liquid level sensor, a battery sensor and an Internet of Things terminal, and can check the liquid level data of the LNG bottle group. When the battery power is too low, the generator set is started to supply power to the battery. Ultimately, the generator set can be operated reliably and unattended in extremely cold areas, reducing manpower loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of the present utility model, and do not constitute a limitation on the embodiments of the present utility model;

[0025] Figure 1 This is a structural schematic diagram of an LNG gas generator set in the utility model;

[0026] Among them, 1-gas chamber, 2-unit chamber, 3-LNG bottle group, 4-first vaporizer, 5-second vaporizer, 6-liquid filling port, 7-first pipeline, 8-second pipeline, 9-pressure regulating assembly, 10-third pipeline, 11-fourth pipeline, 12-fifth pipeline, 13-sixth pipeline, 14-generator, 15-engine, 16-radiator, 17-controller, 18-IoT terminal, 19-liquid level sensor, 20-battery sensor, 21-support frame, 22-base, 23-partition. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[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 different from those within the scope of this description. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0029] Please refer to Figure 1 , Figure 1It is an LNG gas generator set in the utility model, which includes a gas chamber 1 and a unit chamber 2. A liquid filling port 6 is provided at the bottom of the outer surface of the gas chamber 1. An LNG bottle group 3 is fixed inside the gas chamber 1 through a fixing component. The liquid outlet of the LNG bottle group 3 is connected to a first vaporizer 4. The first vaporizer 4 is connected to a second vaporizer 5 through a first pipeline 7. The second vaporizer 5 is connected to a pressure regulating component 9 through a second pipeline 8. A power generation component is fixed inside the unit chamber 8. The pressure regulating component 9 is connected to the power generation component through a third pipeline 10. The engine 15 in the power generation component is connected to the inlet of the second vaporizer 5. The outlet of the second vaporizer 5 is connected to a radiator 16 in the power generation component, and the radiator 16 is connected to the engine 15.

[0030] The specific embodiment of the utility model is as follows: when the generator set is initially operated, the liquefied natural gas in the LNG bottle group 3 is gasified by the air-temperature vaporizer and then passes through the water-bath vaporizer. Since the natural gas flow required for the initial start of the generator set is small, the air-temperature vaporizer can meet the natural gas flow demand of the engine 15, so the water-bath vaporizer does not work at this time, and then it is filtered and pressure-regulated by the pressure regulating component (automatic regulating valve can be used) 9 to reach the rated gas pressure required by the engine 15. After the engine 15 is successfully started, after the cylinder jacket water temperature reaches a certain temperature, the cylinder jacket water circulates to the water-bath vaporizer to provide a heat source for LNG gasification. When the heat of the cylinder jacket water exceeds the heat required by the water-bath vaporizer, the radiator 16 starts to work and dissipates the excess heat of the cylinder jacket water flowing out of the water-bath vaporizer. The cylinder jacket water after heat dissipation is circulated to the engine 15 to cool the engine 15. When the liquefied natural gas content in the LNG bottle group 3 is low, it is replenished through the liquid filling port 6. The LNG gas generator set in this embodiment can realize continuous and reliable power supply for loads in extremely cold areas.

[0031] The first vaporizer 4 is an air-temperature vaporizer. The air-temperature vaporizer utilizes natural convection of air to heat the low-temperature liquid (liquefied natural gas) in the heat exchange tube to evaporate it into gas. It is an efficient and energy-saving heat exchange device that combines air-temperature and heating vaporization functions and can replace heating vaporization products.

[0032] The second vaporizer 5 is a water bath vaporizer, which is a device that vaporizes low-temperature liquid gas into gaseous gas by exchanging heat between hot water and low-temperature liquid gas.

[0033] Among them, the power generation component includes a generator 14, an engine 15 and a radiator 16, the pressure regulating component 9 is connected to the gas inlet of the engine 15 through the third pipeline 10, the generator 14 is electrically connected to the engine 15, the hot water outlet of the engine 15 is connected to the water bath evaporator through the fourth pipeline 11, the water bath evaporator is connected to the inlet of the radiator 16 through the fifth pipeline 12, and the outlet of the radiator 16 is connected to the engine 15 through the sixth pipeline 13.

[0034] When the generator set is started, the amount of natural gas required is small, so it is only necessary to gasify the LNG through the first vaporizer (air-temperature vaporizer) 4, and then filter and regulate the pressure through the pressure regulating component 9. At this time, the second vaporizer (water bath vaporizer) 5 does not work, and then the gasified natural gas filtered and regulated by the pressure regulating component 9 is connected to the gas inlet of the engine 15 through the third pipeline 10, so as to start the engine 15. After the engine 15 starts to work, after the cylinder jacket water temperature in the engine 15 reaches a certain temperature, the cylinder jacket water is circulated to the water bath vaporizer through the fourth pipeline 11 to provide a heat source for the vaporization of the LNG liquefied natural gas, thereby improving the energy utilization rate. When the heat of the cylinder jacket water exceeds the heat required by the water bath vaporizer, the cylinder jacket water is circulated to the radiator 16 through the fifth pipeline 12, and the radiator 16 dissipates the excess heat of the cylinder jacket water. After the heat is dissipated, the cylinder jacket water in the radiator 16 is circulated to the engine 15 through the sixth pipeline 13 to cool the engine 15.

[0035] Among them, the unit also includes a controller 17 and a liquid level sensor 19 for monitoring the liquid level of the LNG bottle group 3, and the liquid level sensor 19 is electrically connected to the controller 17; the unit also includes a battery sensor 20 for monitoring the battery power, and the battery sensor 20 is electrically connected to the controller 17; the unit also includes an Internet of Things terminal 18, and the Internet of Things terminal 18 is electrically connected to the controller 17.

[0036] The liquid level sensor 19 is used to monitor the liquid level information of the LNG bottle group 3 and convert it into an electrical signal and transmit it to the controller 17. The controller 17 receives the electrical signal and processes it and then uploads it to the server through the Internet of Things terminal 18. The user can view the liquid level information of the LNG bottle group 3 in real time through the PC or mobile phone. When it is detected that the liquefied natural gas content in the LNG bottle group 3 is low, personnel are dispatched in time to replenish the LNG bottle group 3. The battery sensor 20 is used to monitor the battery power data and convert it into an electrical signal and transmit it to the controller 17. When it is detected that the battery power is low, the controller 17 starts the generator set to power the battery. After charging is completed, the unit enters a waiting state; at the same time, the user can also remotely start and stop the generator set through the PC or mobile phone. Ultimately, the generator set can be continuously and reliably operated in extremely cold areas without human supervision, reducing manpower loss.

[0037] The fixing assembly includes a support frame 21 and a base 22. The top of the support frame 21 is connected to the LNG bottle group 3, and the bottom of the support frame 21 is connected to the base 22. The base 22 is fixed to the bottom of the gas chamber 1. The support frame 21 and the base 22 are used to support the LNG bottle group 3.

[0038] A partition plate 23 is provided between the gas chamber 1 and the unit chamber 2 , and a plurality of through holes for pipelines to pass through are reserved on the partition plate 23 .

[0039] The gas chamber 1 and the unit chamber 2 are connected through a plurality of through holes on the partition 23, and each pipeline is connected to the devices in the gas chamber 1 and the unit chamber 2 through these through holes, thereby reducing the heat loss caused by the pipeline being exposed to external conditions.

[0040] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0041] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An LNG gas generator set, It is characterized in that The unit includes a gas chamber and a unit chamber, a liquid filling port is provided at the bottom of the outer surface of the gas chamber, an LNG bottle group is fixed inside the gas chamber through a fixing assembly, a liquid outlet of the LNG bottle group is connected to a first vaporizer, the first vaporizer is connected to a second vaporizer through a first pipe, the second vaporizer is connected to a pressure regulating assembly through a second pipe, a power generation assembly is fixed inside the unit chamber, the pressure regulating assembly is connected to the power generation assembly through a third pipe, an engine in the power generation assembly is connected to an inlet of the second vaporizer, an outlet of the second vaporizer is connected to a radiator in the power generation assembly, and the radiator is connected to the engine.

2. An LNG gas generator set according to claim 1, It is characterized in that The first vaporizer is an air-temperature vaporizer.

3. The LNG gas generator set according to claim 1, It is characterized in that The second vaporizer is a water bath vaporizer.

4. The LNG gas generator set according to claim 3, It is characterized in that The power generation component includes a generator, an engine and a radiator, the pressure regulating component is connected to the gas inlet of the engine through the third pipeline, the generator is electrically connected to the engine, the hot water outlet of the engine is connected to the water bath evaporator through a fourth pipeline, the water bath evaporator is connected to the inlet of the radiator through a fifth pipeline, and the outlet of the radiator is connected to the engine through a sixth pipeline.

5. The LNG gas generator set according to claim 1, It is characterized in that The unit also includes a controller and a liquid level sensor for monitoring the liquid level of the LNG bottle group, and the liquid level sensor is electrically connected to the controller.

6. The LNG gas generator set according to claim 5, It is characterized in that The unit also includes a battery sensor for monitoring the battery power, and the battery sensor is electrically connected to the controller.

7. The LNG gas generator set according to claim 5, It is characterized in that The unit also includes an Internet of Things terminal, which is electrically connected to the controller.

8. The LNG gas generator set according to claim 1, It is characterized in that The fixing assembly includes a support frame and a base, the top of the support frame is connected to the LNG bottle group, the bottom of the support frame is connected to the base, and the base is fixed to the bottom of the gas chamber.

9. The LNG gas generator set according to claim 1, It is characterized in that A partition is provided between the gas chamber and the unit chamber, and a plurality of through holes for pipelines to pass through are reserved on the partition.

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