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LNG cold-chain logistics vehicle cold energy recycling system

A technology for cold energy recovery and cold chain logistics, applied in vehicle parts, heating/cooling equipment, air handling equipment, etc. Effect

Pending Publication Date: 2019-08-06
杭州紫明冷链科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patents that have been applied for so far only apply the cooling capacity produced by LNG vaporization to the compartment refrigeration, but have not designed corresponding solutions for the complex working conditions in actual use. In other words, most of the current patents are only Staying in the theoretical stage, not suitable for practical use

Method used

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  • LNG cold-chain logistics vehicle cold energy recycling system
  • LNG cold-chain logistics vehicle cold energy recycling system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, a cold energy recovery and utilization system for LNG cold chain logistics vehicles includes: LNG liquid storage tank (1), stop valve (2), vacuum tube (3), first three-way valve (4), brine replacement Heater (5), second three-way valve (6), fan coil (7), first temperature sensor (8), third three-way valve (9), cold storage tank (10), temperature controller (11 ), circulation pump (12), second temperature sensor (13), engine cooling water heat exchanger (14), pressure regulating valve (15), buffer tank (16), automobile engine (17).

[0027] The inlet of the first three-way valve (4) is connected to the vacuum tube (3), one outlet is connected to the brine heat exchanger (5), and the other outlet is connected to the bypass pipeline, which is adjusted by collecting data from the second temperature sensor (13). The working state of the first three-way valve (4) prevents the brine from freezing. Another form can also be used to prevent the brine ...

Embodiment 2

[0039] Such as figure 2 As shown, the patent of the present invention provides the second implementation mode, wherein the implementation modes of the three working modes such as cooling, cold storage and parking are unchanged, and the flow regulating valve 18 is set. The original first three-way valve and its bypass pipe The path is removed, and a heat exchanger is connected in parallel on the brine inlet pipeline, and the engine cooling water with a higher temperature is introduced to properly heat the brine to prevent the brine from freezing due to excessive cooling of LNG.

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Abstract

The invention provides an LNG cold-chain logistics vehicle cold energy recycling system. The system comprises an LNG liquid storage tank, a stop valve, a vacuum pipe, a first three-way valve, a secondary refrigerant heat exchanger, a second three-way valve, a fan coil, a first temperature sensor, a third three-way valve, a cold storage tank, a temperature controller, a circulating pump, a second temperature sensor, an engine cooling water heat exchanger, a pressure regulating valve, a buffer tank and an automobile engine. The refrigerating capacity generated by LNG vaporization is used for refrigerating and cooling a refrigerating compartment and recycling the refrigerating capacity; an original compartment refrigerating unit is replaced, so energy is saved; meanwhile, the actual use condition is fully considered, multiple working modes are achieved, and different working states are met; and the system plays a very important role in the field of cold-chain logistics.

Description

technical field [0001] The invention belongs to the field of cold chain logistics systems, and in particular relates to a cold energy recycling system for LNG cold chain logistics vehicles. Background technique [0002] At present, my country's cold chain logistics vehicles are mainly mechanical refrigerated vehicles. The refrigeration system consists of a compressor, a condenser, an evaporator, and an expansion valve. The power source of the compressor is driven by a car engine or an independent diesel engine. This kind of cold chain logistics vehicle requires an independent refrigeration device, which has a complex structure and high operating costs. [0003] The fuel of the LNG cold chain logistics vehicle is liquefied natural gas, and the LNG is stored in a liquid storage tank at -160°C. Before entering the car engine, the LNG vaporization must be reheated to normal temperature, and a large amount of cold energy is generated when LNG vaporizes. Under normal circumstanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00B60H1/32
CPCB60H1/00357B60H1/32Y02T10/88
Inventor 俞益波张峰郑斯璇孙方军
Owner 杭州紫明冷链科技有限责任公司