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Oil pressure limiting system of hydrogen diaphragm compressor and control method of oil pressure limiting system

A diaphragm compressor, hydrogen technology, applied in mechanical equipment, greenhouse gas reduction, climate sustainability, etc., can solve the problem that hydrogen cannot be effectively used, and achieve the effect of increasing hydrogen utilization, reducing costs, and improving utilization

Active Publication Date: 2021-10-01
上海氢枫能源技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the technical problem in the background technology that the long-tube trailer has a large specific gravity and hydrogen cannot be effectively utilized, thereby providing an oil pressure limiting system of a hydrogen diaphragm compressor and its control method

Method used

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  • Oil pressure limiting system of hydrogen diaphragm compressor and control method of oil pressure limiting system
  • Oil pressure limiting system of hydrogen diaphragm compressor and control method of oil pressure limiting system
  • Oil pressure limiting system of hydrogen diaphragm compressor and control method of oil pressure limiting system

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Embodiment Construction

[0036] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein.

[0038] In the description...

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Abstract

The invention belongs to the technical field of diaphragm compressors, and particularly discloses an oil pressure limiting system of a hydrogen diaphragm compressor and a control method of the oil pressure limiting system. The oil pressure limiting system comprises an oil injection pipeline, wherein an oil inlet, an oil discharge opening, an oilsupplementing opening and an oil return opening are formed in the oil injection pipeline. The diaphragm compressor comprises a diaphragm head oil cavity, a middle body and a crankcase which are sequentially connected, wherein a gear pump and an overflow valve are arranged in a gearbox, an inlet of the gear pump communicates with an oil pool of the crankcase, and an outlet of the gear pump communicates with the oil return opening of the oil injection pipeline. The oil pressure limiting system also comprises an oil supplementing pipeline, wherein one end of the oil supplementing pipeline is connected with the oil supplementing opening of the oil injection pipeline, and the other end of the oil supplementing pipeline is connected with the diaphragm head oil cavity. One end of lubricating oil path is connected with a filter, and the other end of the lubricating oil path is connected with a crankshaft. One end of an oil pressure limiting pipeline communicates with the diaphragm head oil cavity, and the other end communicates with the oil pool of the crankcase. By increasing the number of compression stages of the diaphragm compressor and correspondingly increasing the oil pressure limiting system of the compressor, hydrogen of a hydrogen long pipe trailer can be used up to about 1 MPa, the hydrogen utilization rate is increased, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of hydrogen diaphragm compressors, in particular to an oil pressure limiting system of a hydrogen diaphragm compressor and a control method thereof. Background technique [0002] Hydrogen refueling station is an emerging industry. At present, the main transportation mode of hydrogen in hydrogen refueling stations on the market is long-tube trailer transportation (gaseous), but hydrogen is the gas with the smallest molecular weight. Even if the long-tube trailer has a high pressure, the quality of hydrogen transported is relatively low. This leads to the fact that the transportation cost of hydrogen accounts for a large proportion of the cost of selling hydrogen. [0003] In addition, limited by the characteristics of the diaphragm compressor, the hydrogen inlet pressure is maintained at 5-20MPa, and the long-tube trailer can only use hydrogen from 20MPa to about 6MPa, and there is still a large proportion of...

Claims

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Application Information

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IPC IPC(8): F04B39/02F04B45/053F04B41/02F04B37/18
CPCF04B39/0207F04B39/023F04B39/0284F04B45/0536F04B41/02F04B37/18Y02E70/30
Inventor 方沛军姜方宣锋伍远安曹俊
Owner 上海氢枫能源技术有限公司
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