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Low-temperature liquid hydrogen pump and use thereof

A liquid hydrogen and low temperature technology, applied in the field of integrated low temperature liquid hydrogen pump, can solve the problems of large calorific value and small calorific value, and achieve the effect of avoiding safety problems and avoiding heat leakage

Inactive Publication Date: 2011-05-04
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to avoid eddy current loss and hysteresis loss and solve the problem of high calorific value, the motor of the present invention is configured as an ironless motor. There is no ferromagnetic substance in the stator of this motor, which prevents the magnetization loss and eddy current loss of the rotating magnetic field. and less heat

Method used

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  • Low-temperature liquid hydrogen pump and use thereof
  • Low-temperature liquid hydrogen pump and use thereof
  • Low-temperature liquid hydrogen pump and use thereof

Examples

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Embodiment Construction

[0016] figure 1 It is an overall schematic diagram of a cryogenic liquid hydrogen pump according to an embodiment of the present invention. As can be seen from the figure, the cryogenic liquid hydrogen pump includes an electric motor 1, a working cylinder 3, and a guide cylinder 5 arranged between the two as a part of a transmission mechanism for example, and the working cylinder 3 and the guide cylinder 5 are respectively provided with a first A piston 4 and a second piston 6 are also provided with a piston rod 7 for connecting the two between the two pistons 4 and 6, wherein the motor 1 is connected to the second piston rod mechanism 8 by a crankshaft 8a and a connecting rod 8b. Two pistons 6 are connected. In addition, an outlet valve 9 and an inlet valve 10 are provided on the cylinder 3 .

[0017] Advantageously, in the present invention, the motor 1 used is an ironless motor. The biggest feature of this motor is that there is no ferromagnetic substance in the stator, w...

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Abstract

The invention provides a low-temperature liquid hydrogen pump, which comprises an electric motor (1), a drive mechanism (2), a working cylinder (3) and a first piston (4) arranged in the working cylinder (3). The low-temperature liquid hydrogen pump is characterized in that: the electric motor (1) is an iron core-free electric motor, and comprises a stator winding formed by pouring an epoxy material and a copper coil; and the shrinkage of the epoxy material in liquid hydrogen is 0.3 to 0.5 percent, so that the liquid hydrogen pump can be impregnated in the liquid hydrogen for work. In addition, the invention also provides the use of the low-temperature liquid hydrogen pump in the delivery of the liquid hydrogen.

Description

technical field [0001] The invention relates to a low-temperature liquid hydrogen pump in the technical field of liquid hydrogen transportation, in particular to an integrated low-temperature liquid hydrogen pump capable of working submerged in liquid hydrogen. Background technique [0002] At present, hydrogen energy, as a new energy system, has attracted more and more attention. Storage, transportation and carrying of hydrogen sources are the most basic functions of the hydrogen energy system. At present, there are three basic ways to realize hydrogen energy storage and transportation, namely compressed hydrogen, hydrogen storage materials to absorb hydrogen, and liquid hydrogen. As the energy system uses hydrogen energy on a large scale, hydrogen storage density has become the key to practicality, and liquid hydrogen is currently the only method that can meet future storage and transportation density requirements. However, as a hydrogen energy system, it is different fro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B15/08
Inventor 李青李强
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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