CN203203161U

CN203203161U - Liquefied natural gas (LNG) automotive air conditioning cold energy recycling heat exchanger

Info

Publication number: CN203203161U
Application number: CN 201320014820
Authority: CN
Inventors: 郑双喜; 李刚
Original assignee: HUBEI HUILIBAI INVESTMENT CO Ltd
Current assignee: HUBEI HUILIBAI INVESTMENT CO Ltd
Priority date: 2013-01-11
Filing date: 2013-01-11
Publication date: 2013-09-18
Anticipated expiration: 2023-01-11

Abstract

The utility model relates to a liquefied natural gas (LNG) automotive air conditioning cold energy recycling heat exchanger. A plurality of through holes are evenly arranged on the end face of a cast aluminum body, the middle through hole serves as an LNG evaporation air chamber, an air inlet pipe is arranged at one end of the through hole and is provided with a plurality of small holes evenly distributed in the through hole to serve as a spray pipe, and heat exchange pipes are led out of the other end of the through hole, are in series connection with each other in other through holes and extend out of an outermost layer. The heat exchange pipes are U-shaped or spiral LNG heat exchange pipes and are made of copper or aluminum. Due to series connection of the heat exchange pipes in the cast aluminum body, LNG is evaporated and absorbs cold energy through the cast aluminum body, a chemical function of naturally using the LNG is achieved, the heat exchange pipes become key parts of an air conditioning component, cooling liquid serves as a refrigerant medium to perform reverse flow heat exchange with the LNG, and a refrigerant is used for automotive air conditioning cab refrigeration and refrigeration of other refrigerators after cooled step by step.

Description

LNG air conditioning for automobiles cold recovery exchanger

Technical field

The utility model relates to the parts of LNGV air-conditioning, specifically is LNG air conditioning for automobiles cold recovery exchanger.

Background technology

The LNG LNGV is because its energy-conserving and environment-protective have begun volume production and come into operation, but its air-conditioning still adopts original air-conditioning system, original air-conditioning system generally adopts notes freon or 134a to use the destruction atmosphere as cold-producing medium, and the high temperature that condenser is discharged 80 degree cause greenhouse effects therefore to be unfavorable for environmental protection; Compressor in the traditional air-conditioning system will consume automobile engine 3 horsepowers, improves percent 10 oil consumption, therefore wastes energy.

Summary of the invention

The utility model is for energy savings and be beneficial to environmental protection, at the uniqueness of air-conditioning system and the chemical functional of LNG, and the special LNG air conditioning for automobiles cold recovery exchanger that proposes.

For this reason, the technical solution of the utility model is that LNG air conditioning for automobiles cold recovery exchanger comprises a cast aluminium body, it is characterized in that: evenly be provided with a plurality of through holes on the end face of cast aluminium body; Middle through hole is evaporated air chamber as LNG, this through hole one end is provided with air inlet pipe, air inlet pipe is laid with a plurality of apertures as playpipe in this through hole, the other end of this through hole is drawn heat exchanger tube and is connected mutually in other through hole, and the heat exchanger tube after the series connection stretches out from outermost through hole.

Improvement to such scheme is: described other a plurality of through holes are divided into four layers from outside to inside on the end face of cast aluminium body, per two through holes are one group, and wherein the through hole of outermost layer and the second layer is 7 groups, and the 3rd layer and the 4th layer is 5 groups.

[0006]Improvement to such scheme is: described heat exchanger tube is U-shaped Ge screw type LNG heat exchanger tube, and its material is made of copper or aluminum.

Beneficial effect:

The utility model since heat exchanger tube in the intrinsic series connection of cast aluminium, make LNG evaporation and by cast aluminium bulk absorption cold, play the chemical functional that nature uses LNG, make it become the chief component of air supply rate, not only make U-shaped or the screw type heat exchanger tube becomes cooling liquid flowing channel, the porous playpipe of LNG, and make the cast aluminium body evaporate air chamber as LNG, carry out the reverse flow heat exchange with cooling fluid as refrigerant medium and LNG liquefied natural gas, refrigerant is progressively lowered the temperature, and the back is used for air conditioning for automobiles driver's cabin refrigeration and other refrigerator freezes.

U-shaped or spiral type pipe becomes cooling liquid flowing channel on the cast aluminium body, carries out cold and hot exchange with LNG and the cooling fluid in the pipeline in the U-shaped Ge screw type heat exchanger tube that inserts in the pipeline.

It is simple in structure, and is economical and practical, is the vitals that LNG LNGV air-conditioning cold flow reclaims.

Description of drawings

Fig. 1 is principle schematic of the present utility model.

Fig. 2 is that master of the present utility model looks cutaway view.

Fig. 3 is the vertical view of Fig. 2.

1 is the cast aluminium body among the figure, the 2nd, and through hole, the 3rd, heat exchanger tube, the 4th, outlet, the 5th, air inlet pipe, the 6th, LNG tracheae, the 7th, ultralow temperature heat-exchange system, the 8th, middle low-temperature heat exchange system, the 9th, low temperature recovery system, the 10th, engine, the 11st, evaporimeter, the 12nd, water pump.

The specific embodiment

The utility model as shown in Figure 1, 2, 3.

Evenly be provided with a plurality of through holes 2 on the end face of cast aluminium body 1, as LNG evaporation air chamber, these through hole 2 one ends are provided with air inlet pipe 5 the through hole 2 in the middle of the cast aluminium body 1, and air inlet pipe 5 is laid with a plurality of apertures as playpipe in through hole 2; Draw heat exchanger tube 3 and series connection and stretch out at outermost layer mutually in other the through hole from middle through hole 2 other ends, outlet is 4.

A plurality of through holes 2 are divided into four layers from outside to inside on the end face of cast aluminium body 1, per two through holes 2 are one group, and wherein the through hole 2 of outermost layer and the second layer is 7 groups, and the through hole 2 of the 3rd layer and the 4th layer is 5 groups.

Heat exchanger tube 3 is U-shaped Ge screw type LNG heat exchanger tubes, and its material is made of copper or aluminum.

Its principle is this LNG air conditioning for automobiles cold recovery exchanger assembly, is divided into three systems:, begin to ultralow temperature heat-exchange system 7 from LNG tracheae 6, middle low-temperature heat exchange is 8, low temperature recovery system 9 is connected to engine 10 again; Ultralow temperature heat-exchange system 7 and middle low-temperature heat exchange be 8 by heat exchanger tube 3 by evaporimeter 11 and water pump 12 work.

This principle is: liquified natural gas flows into porous playpipe in the ultralow temperature recovery system by the road after opening valve, liquid LNG gasifies at the LNG evaporation air chamber that enters under the injection of porous on the cast aluminium body 1, be converted to gaseous state by liquid state and discharge cold, this cold is passed in the U-shaped or screw type cooling liquid flowing channel on the aluminium body cooling fluid through gas chamber outer wall and is carried out the heat exchange second time; Make the cooling fluid cooling, air chamber other end LNG gas outlet is connected with U-shaped Ge screw type LNG heat exchange aluminium tube in the middle low-temperature heat exchange system, this heat exchange aluminium tube is placed in the intrinsic U-shaped or screw type cooling liquid flowing channel of aluminium and is carried out the heat exchange first time by cooling fluid parcel in the runner, flow into the low temperature recovery system during LNG gas flows out after the low-temperature heat exchange system, will remain the following cold of 10c and pass through the aluminium body in inferior recovery.

Claims

1.LNG the air conditioning for automobiles cold recovery exchanger comprises a cast aluminium body, it is characterized in that: evenly be provided with a plurality of through holes on the cast aluminium body end face; Middle through hole is evaporated air chamber as LNG, this through hole one end is provided with air inlet pipe, air inlet pipe is laid with a plurality of apertures as playpipe in this through hole, this through hole other end is drawn heat exchanger tube and is connected mutually in other through hole, and the heat exchanger tube after the series connection stretches out from outermost through hole.

2. LNG air conditioning for automobiles cold recovery exchanger according to claim 1, it is characterized in that: described other a plurality of through holes are divided into four layers from outside to inside on the end face of cast aluminium body, per two through holes are one group, wherein the through hole of outermost layer and the second layer is 7 groups, and the 3rd layer and the 4th layer is 5 groups.

3. LNG air conditioning for automobiles cold recovery exchanger according to claim 1, it is characterized in that: described heat exchanger tube is U-shaped Ge screw type LNG heat exchanger tube, and its material is made of copper or aluminum.