CN2762046Y

CN2762046Y - Thermopipe self circulation heat collector

Info

Publication number: CN2762046Y
Application number: CN 200420084559
Authority: CN
Inventors: 李辉; 李和义; 龚文浩; 李彦
Original assignee: 龚文浩; 李和义
Current assignee: Beijing Shengyuan qingluan Technology Development Co. Ltd.
Priority date: 2004-07-30
Filing date: 2004-07-30
Publication date: 2006-03-01
Anticipated expiration: 2014-07-30

Abstract

The utility model provides a thermotube self circulation heat collector, which collects heat energy of more than 65 DEG C. The utility model comprises a closed heat circulation system which is composed of a heat source heat exchanger, a high temperature thermotube line, a cold source heat exchanger and a low temperature heat tube line. The utility model is characterized in that after the interior of the system is pumped to be vacuum, a certain amount of liquid is injected into the system; under 65 DEG C, the liquid in the heat source heat exchanger can be gasified, and liquid steam enters the cold source heat exchanger through the high temperature thermotube line; after liquefied, the steam is conveyed back to the heat source heat exchanger by the low temperature heat tube line through gravity and the force of capillaries, and a pump and other moveable components are circularly arranged in the system. The heat source heat exchanger is a device which exchanges heat with a heat source of an environment, and the cold source heat exchanger is a device which transfers inner heat to a cold source. The utility model has the advantages of no energy consumption, compact structure, high heat exchange efficiency, large heat transfer quantity, utilization of lower grade heat source, etc.; besides, the utility model is suitable for efficiently collecting the lower grade heat sources on occasions with power shortage.

Description

Heat pipe-type self-loopa thermal recovery storage

Technical field

The utility model relates to the self-loopa heat-pipe heat exchanger of gathering heat energy more than 65 ℃, belong to field of heat exchangers.

Background technology

Thermal refrigerating does not have the New Refrigerating technology of environmental disruption to be subjected to increasing attention as effectively utilizing low-grade energy in industrial waste heat, engine exhaust heat, solar energy and the underground heat etc.At aspects such as marine refrigeration, vehicle refrigeration, aerospace refrigeration, tank refrigerating, warship refrigeration, solar refrigeration, power plant's refrigeration goodish application prospect is arranged, this all has very big meaning to energy-conservation and environmental protection, causes continuous input, concern and the exploitation of lot of domestic and foreign research institution, colleges and universities and enterprise over several years.It is how convenient and swift that middle low grade heat energy is fully gathered and made full use of is one of successful key component of thermal refrigerating system.

The hot pipe technique that does not consume additional energy source can be realized the small size high duty heat transfer, but because present heat pipe mainly is single tube or finned single tube structure, finishing inner phase-change liquid steam in a pipe rises mobile mobile with liquid decline, this just brings, and rising flows and descend is flowing in a pipe interior flow disturbance, the flowing velocity that influences each other and flowing heat transfer process.In addition, heat pipe structure is single tube and finned single tube structure, and its structure is not compact, must use many finned single tubes combinations in the bigger occasion of collection heat, and structure is bigger, and heat transfer efficiency reduces.

Summary of the invention

For realize not having energy consumption, the requirement of small size, a large amount of low grade heat energies of high heat transfer efficient collection, the utility model proposes heat pipe-type self-loopa thermal recovery storage.This system mainly comprises thermal source heat exchanger 1, high-temperature heat pipe pipeline 2, and low-temperature receiver heat exchanger 3, Cryo Heat Tube pipeline 4, the heat circulating system of a sealing of formation, this internal system vacuumizes the back and injects certain amount of fluid.This system is made up of the two-way heat pipe, phase change medium in high-temperature heat pipe and the Cryo Heat Tube flows to unidirectional, different with conventional heat pipe, wherein one road high-temperature heat pipe pipeline 2 takes the liquid vapour that has gasified in the pipe in the low-temperature receiver heat exchanger 3 to, and steam liquefaction back is carried backheat source heat exchanger 1 by Cryo Heat Tube pipeline 4 by gravity and capillary strength.The thermal source heat exchanger is the device that carries out heat exchange with the environment thermal source, and the low-temperature receiver heat exchanger is the device that internal heat is passed to low-temperature receiver (generator).

The utility model system has no energy consumption, compact conformation, and the heat transfer efficiency height, heat output is big, utilizes advantages such as low-grade heat source.Be applicable under the few electrical environment of short of electricity and carry out highly effective gathering low-grade heat source occasion.

System utilizes the liquid phase-change heat transfer that circulates, and thermal source heat exchanger 1 all is that upside is connected high-temperature heat pipe pipeline 2 with low-temperature receiver heat exchanger 3, and downside connects Cryo Heat Tube pipeline 4, and thermal source heat exchanger 1 placement location is lower than low-temperature receiver heat exchanger 3 positions.

The heat pipe-type self-loopa thermal recovery phase-change working substance that storage uses that the utility model proposes has water, heptane, ammonia, helium, nitrogen, acetone, methyl alcohol, ethanol, freon, mercury, caesium, potassium, sodium, lithium.Temperature difference according to utilizing thermal source adopts different working medium.

The material of the heat pipe-type self-loopa thermal recovery storage that the utility model proposes is different with system pressure according to the temperature of utilizing thermal source, can be aluminium, aluminium alloy, brass, copper, copper alloy, stainless steel, steel alloy, glass, fiberglass, flexible pipe, polytetrafluoroethylene (PTFE).High-temperature heat pipe pipeline and Cryo Heat Tube pipeline can adopt metal tube also can adopt pressure-resistant seal material metal and flexible nonmetallic tubing.

The heat pipe-type self-loopa thermal recovery storage that the utility model proposes, it is characterized in that: thermal source heat exchanger 1 and low-temperature receiver heat exchanger 3 adopt plate-fin, fin tube type, removable board-like, whole board-like, tubulation shell-and-tube heat exchange structure, thermal source heat exchanger 1 can adopt identical heat exchange structure with low-temperature receiver heat exchanger 3, also can adopt heat exchange structure inequality, but require the heat exchange amount of 2 heat exchangers suitable, 2 heat exchangers must satisfy low-temperature receiver heat exchanger 3 relative vertical heights and be higher than thermal source heat exchanger 1.

The utility model is compared with existing heat pipe heat exchanging technology, have the following advantages and the high-lighting effect: the heat pipe-type self-loopa thermal recovery storage that the utility model proposes is because high-temperature heat pipe and the Cryo Heat Tube that adopts unidirectional working medium to flow to, intraductal working medium does not have the phase mutual interference, flowing velocity is accelerated, and heat exchange efficiency improves greatly.Heat pipe-type self-loopa thermal recovery storage adopts the high compact heat exchange structure of the coefficient of heat transfer, system's heat transfer efficiency height, and heat output is big, compact conformation, volume is little.

Description of drawings

Fig. 1 is the heat pipe-type self-loopa thermal recovery storage figure that plate-fin thermal source heat exchanger 1, plate-fin low-temperature receiver heat exchanger 3 are formed.

Fig. 2 is the heat pipe-type self-loopa thermal recovery storage figure that plate-fin thermal source heat exchanger 1, fin tube type low-temperature receiver heat exchanger 3 are formed.

Fig. 3 is the heat pipe-type self-loopa thermal recovery storage figure that plate-fin thermal source heat exchanger 1, board-like low-temperature receiver heat exchanger 3 are formed.

Fig. 4 is the heat pipe-type self-loopa thermal recovery storage figure that plate-fin thermal source heat exchanger 1, tubulation shell-and-tube low-temperature receiver heat exchanger 3 are formed.

Fig. 5 is the heat pipe-type self-loopa thermal recovery storage figure that tubulation shell-and-tube thermal source heat exchanger 1, board-like low-temperature receiver heat exchanger 3 are formed.

Fig. 6 is the heat pipe-type self-loopa thermal recovery storage figure that tubulation shell-and-tube thermal source heat exchanger 1, tubulation shell-and-tube low-temperature receiver heat exchanger 3 are formed.

The specific embodiment

Further specify the specific embodiment of the present utility model below in conjunction with accompanying drawing:

The utility model system mainly comprises 3, one Cryo Heat Tubes 4 of 2, one low-temperature receiver heat exchangers of 1, one high-temperature heat pipe of a thermal source heat exchanger.

Heat pipe-type self-loopa thermal recovery storage system must be a pumped vacuum systems, and inner sealing is perfused with phase-change working substance, and thermal source heat exchanger 1 placement location is lower than low-temperature receiver heat exchanger 3 positions, and thermal source heat exchanger 1 and low-temperature receiver heat exchanger 3 adopt the close-coupled heat exchange structure.Thermal source heat exchanger 1 passes to internal liquid working medium with thermal source heat, working medium gasification heat absorption, high-temperature heat pipe pipeline 2 is transported to low-temperature receiver heat exchanger 3 with the working medium that gasifies in the thermal source heat exchanger, low-temperature receiver heat exchanger 3 constantly liquefies the working medium of the inner gasification of heat exchanger, emit latent heat and give low-temperature receiver, liquid refrigerant is carried backheat source heat exchanger 1 bottom by Cryo Heat Tube pipeline 4.Thermal source heat exchanger 1 and low-temperature receiver heat exchanger 3 structures are gaseous state and liquid the employing without the close-coupled heat exchange structure according to thermal source and low-temperature receiver.

Plate-fin thermal source and low-temperature receiver heat exchanger, fin tube type thermal source and low-temperature receiver heat exchanger are applicable to that gaseous state thermals source such as air and low-temperature receiver and heat pipe-type self-loopa thermal recovery storage carry out heat exchange.Board-like thermal source and low-temperature receiver heat exchanger, tubulation shell-and-tube thermal source and low-temperature receiver heat exchanger are applicable to that liquid heat sources such as water and low-temperature receiver and heat pipe-type self-loopa thermal recovery storage carry out heat exchange.Thermal source heat exchanger 1 is the plate fin heat-exchanging structure among Fig. 1～Fig. 4, and thermal source heat exchanger 1 is a tubulation shell-and-tube heat exchange structure among Fig. 5～Fig. 6.Low-temperature receiver heat exchanger 3 is the plate fin heat-exchanging structure among Fig. 1, and low-temperature receiver heat exchanger 3 is the fin tube type heat exchange structure among Fig. 2, and low-temperature receiver heat exchanger 3 is a plate-type heat exchange structure among Fig. 3～Fig. 5, and low-temperature receiver heat exchanger 3 is a tubulation shell-and-tube heat exchange structure among Fig. 4～Fig. 6.

Be applicable to that thermal source and low-temperature receiver are heat pipe-type self-loopa thermal recovery storage employing Fig. 1 and Fig. 2 structure of gaseous state, be applicable to that thermal source is that gaseous state, low-temperature receiver are liquid heat pipe-type self-loopa thermal recovery storage employing Fig. 3 and Fig. 4 structure, is applicable to that thermal source and low-temperature receiver are liquid heat pipe-type self-loopa thermal recovery storage and adopt Fig. 5 and Fig. 6 structure.

Claims

1. heat pipe-type self-loopa thermal recovery storage, mainly comprise thermal source heat exchanger (1), low-temperature receiver heat exchanger (3), and connection high-temperature heat pipe pipeline (2) wherein, Cryo Heat Tube pipeline (4), constitute the circulatory system of a sealing, it is characterized in that, this internal system vacuumizes the back and injects certain amount of fluid, system utilizes the liquid phase-change heat transfer that circulates, thermal source heat exchanger (1) all is that upside is connected high-temperature heat pipe pipeline (2) with low-temperature receiver heat exchanger (3), and downside connects Cryo Heat Tube pipeline (4), and thermal source heat exchanger (1) placement location is lower than low-temperature receiver heat exchanger (3) position.

2. according to the described a kind of heat pipe-type self-loopa thermal recovery storage of claim 1, it is characterized in that: heat pipe-type self-loopa thermal recovery phase-change working substance that storage uses has water, heptane, ammonia, helium, nitrogen, acetone, methyl alcohol, ethanol, freon, mercury, caesium, potassium, sodium, lithium, temperature difference according to utilizing thermal source adopts different working medium.

3. according to claim 1 and 2 described a kind of heat pipe-type self-loopa thermal recovery storages, it is characterized in that: high-temperature heat pipe pipeline (2) and Cryo Heat Tube pipeline (4) adopt metal tube, pressure-resistant seal material metal flexible pipe.

4. according to the described a kind of heat pipe-type self-loopa thermal recovery storage of claim 1, it is characterized in that: thermal source heat exchanger (1) and low-temperature receiver heat exchanger (3) adopt plate-fin, fin tube type, removable board-like, whole board-like, tubulation shell-and-tube heat exchange structure.