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A device that directly utilizes LNG cold energy to drive an LNG high-pressure pump for gasification
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A high-pressure pump and cold energy technology, which is applied to the installation device of the container structure, the equipment discharged from the non-pressure container, the pump, etc., can solve the problem of no research results
Active Publication Date: 2022-04-08
朱健
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Problems solved by technology
At the same time, high-power motors have major safety risks in flammable and explosive areas
[0003] As a green energy technology, LNG cold energy has been researched and applied quite a lot, but it uses LNG cold energy as the whole power, and it pressurizes LNG to a high-pressure gasifier for gasification without any external input power. , there are no relevant research results at home and abroad
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[0049] combined with figure 1 To illustrate, a device that directly utilizes LNG cold energy to drive an LNG high-pressure pump for gasification, the device consists of a cylinder, a piston, a connecting rod, a valve, a control valve, a plunger pump, a gasifier, a safety valve, a pressure reducer, Composition of pipelines and storage tanks.
[0050] Described cylinder comprises cylinder liner 1, cylinder piston 2, cylinder connecting rod 3; Described plunger pump 4 has plunger pump connecting rod 5, and cylinder connecting rod 3 and plunger pump connecting rod 5 are realized by fixed connecting device 6 fixed connection;
[0051] Valves 7, 8, 9, 10, 11, 12, 13, 14 are installed on the cylinder liner 1, wherein: valves 8, 9, 10 are respectively connected to pipelines 15, 16, 17, and then respectively connected to storage tank 23, 22, 21; valves 11, 12, 13 are respectively connected to pipelines 18, 19, 20, and the...
Embodiment 2
[0062] Example 2 The LNG receiving station boosts the pressure of LNG to 10MPa, and enters the natural gas high-pressure pipeline after gasification
[0063] combined with figure 2 To illustrate, a device that directly utilizes LNG cold energy to drive an LNG high-pressure pump for gasification differs from Embodiment 1 in that the device includes a CNG storage tank, as follows:
[0064] Set the pressure of storage tank 28 to 25MPa, and the pressure of storage tank 21 to 10MPa. When storage tank 28 is overpressured, the overpressure gas will be discharged into storage tank 23. When storage tank 21 is overpressured, control valves 30 and 31 will be closed to stop the storage tank. 28 output high-pressure gas.
[0065] Valves 7, 8, 13, and 14 are installed on the four inlet and outlet ports on cylinder liner 1, wherein: valve 8 is connected to pipeline 15, and then connected to storage tank 23; valve 13 is connected to pipeline 18, and then connected to storage tank 23;
[00...
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Abstract
The invention relates to a device for directly using LNG cold energy to drive an LNG high-pressure pump for gasification, and belongs to the technical field of cold energy application. A device that directly utilizes LNG cold energy to drive an LNG high-pressure pump for gasification, the device includes the following equipment units: a plunger pump, a cylinder, and the plunger pump piston and the cylinder piston are fixedly connected through a plunger pump connecting rod It is linked with the cylinder connecting rod; the gasifier, the gasifier receives the LNG from the plunger pump; the high-pressure storage tank, the high-pressure storage tank receives the high-pressure CNG from the gasifier after gasification; the CNG storage tank, The CNG storage tanks receive CNG from the first cylinder chamber and the second cylinder chamber, and one of the CNG storage tanks simultaneously receives high-pressure CNG from the high-pressure storage tank. The invention provides a device for continuously pressurizing LNG to a gasifier for gasification, using LNG cold energy as the entire power without any external input power.
Description
technical field [0001] The present invention relates to a device that directly utilizes LNG cold energy to drive an LNG high-pressure pump for gasification, especially relates to a device that uses LNG cold energy as the entire power to pressurize LNG to high-pressure gasification without any external input power. The utility model relates to a device for gasifying a device, which belongs to the technical field of cold energy application. Background technique [0002] At present, LNG receiving stations pressurize and gasify LNG into natural gas pipelines, and LNG-CNG filling stations pressurize and gasify LNG and fill them into industrial steel cylinders or CNG vehicles. vaporizer for gasification. Dalian PetroChina LNG receiving station, LNG is pressurized from the tank to 1MPa by the low-pressure pump, and delivered to the high-pressure pump. After the high-pressure pump pressurizes the LNG to 10MPa, it is transported to the gasifier for gasification and export. Among t...
Claims
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Application Information
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