Refrigeration and power supply combined system for natural gas waste cold utilization
A combined system, natural gas technology, applied in the field of combined refrigeration and power supply systems, to achieve the effects of energy saving, environmental protection and effective utilization
Pending Publication Date: 2019-05-14
TIANJIN UNIV OF COMMERCE
View PDF0 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The purpose of the present invention is to solve the technical defects existing in the prior art, and provide a kind of liquefied natural gas that releases a large amount of cold energy and pressure energy during gasification and transportation, so as to solve the problem of effective utilization of natural gas energy, realize refrigeration power supply, and save energy
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0013] Such as figure 1 As shown, the refrigerating and power supply combined system utilizing natural gas waste cooling in the present invention includes: a fourth evaporator 1, a third evaporator 2, a second evaporator 3, a first evaporator 4, a fourth expander 5, and a fourth power generation machine 6, third expander 7, third generator 8, second expander 9, second generator 10, first expander 11, first generator 12, fifth expander 13, fifth generator 14 , the first heat exchanger 15, the second heat exchanger 16, the water pump 17, the fourth condenser 18, the third condenser 19, the second condenser 20, the first condenser 21, the liquefied natural gas pump 22, the first refrigeration Four refrigerating cycles, one natural gas cycle and one chilled water cycle composed of refrigerant pump 23, second refrigerant pump 24, third re...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a refrigeration and power supply combined system for natural gas waste cold utilization. The system comprises multiple refrigeration sub-systems which independently work and provide multiple refrigeration cycles. Liquefied natural gas inlets and outlets of condensers of the multiple refrigeration sub-systems are connected in series. The liquefied natural gas inlet of the condenser of one refrigeration sub-system is connected with a liquefied natural gas pump, the liquefied natural gas outlet of the condenser of one refrigeration sub-system is connected with an inlet ofan expander, and an outlet of the expander is connected with a power generator. An outlet of the expander is connected with a natural gas inlet of a second heat exchanger, and a natural gas outlet ofthe second heat exchanger is connected with a natural gas inlet of a user. A chilled water inlet of the second heat exchanger is connected with a chilled water outlet of a first heat exchanger, a chilled water outlet of the second heat exchanger is connected with a chilled water inlet of a water pump, and a chilled water outlet of the water pump is connected with a chilled water inlet of the firstheat exchanger. A large amount of cold energy and pressure energy released in the conveying process of liquefied natural gas is fully utilized, and cold supply and power generation are achieved.
Description
technical field [0001] The invention relates to a refrigeration and power supply combined system for utilizing the residual cooling of natural gas. Background technique [0002] LNG will release a lot of cold energy and pressure energy during gasification and delivery to the user pipeline network. If it is not fully utilized, it will cause a lot of waste of energy. The cold chain logistics food storage process requires a lot of cold sources, liquefaction The high-pressure pressure energy of natural gas and the pressure energy of the high-pressure working medium depressurization process in the refrigeration cycle can be used to drive the expander to drive the generator to generate electricity, and realize the comprehensive utilization of cold energy and pressure energy for cooling and power generation, which can effectively improve energy utilization. Contents of the invention [0003] The purpose of the present invention is to solve the technical defects existing in the pr...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): F01K27/00F01K25/10F28D21/00
Inventor 宁静红
Owner TIANJIN UNIV OF COMMERCE