CN2608929Y

CN2608929Y - High efficient heat pipe element

Info

Publication number: CN2608929Y
Application number: CN 03242702
Authority: CN
Inventors: 薛金栋
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-28
Filing date: 2003-03-28
Publication date: 2004-03-31
Anticipated expiration: 2013-03-28

Abstract

The utility model relates to a high efficient heat tube element consisting of a shell being welded after vacuumizing, the inner surface of the shell is provided with a passivating protective layer, the shell is filled with excitation andante eroding liquid and inorganic solid powder working fluid which occupies the 6 to 10 percent of the capacity of heat tube element internal cavity. The utility model has advantages that the general steal heat tube pure phase transition heat transferring mechanism is changed, the inner pressure is small, the problem of easy exploding in high temperature is solved, the solid working fluid and the carrier has good compatibility that incondensable gas will not be produced, which solves the problem of easy invalidation of the general heat tube and prolongs the service life, the heat conduction performance is better than general heat tube that the heat transfer efficiency is higher than 95 percent, the manufacturing process is easy operating, the cost is low and the application area is wide.

Description

The high-efficiency heat pipe element

Technical field

The utility model belongs to a kind of high-efficiency heat pipe element.

Background technology

Existing hot pipe technique is varied, and they are heat-transfer working medium with a considerable amount of water or other liquid, and we are called conventional heat pipe.Conventional heat pipe has good heat conductivility, but it is to rely on the phase transformation of liquid refrigerant to conduct heat.Under the worst hot case, interior pressure is big in more than 300 ℃, and booster easily takes place, and middle high-temperature heat pipe needs the special liquid refrigerant of filling, but because the incompatibility of this liquid refrigerant and shell, heat pipe easily lost efficacy.In addition, because the liquid refrigerant phase-change heat transfer is evaporation, the condensation process that is circulated by working media, horizontal direction is conducted heat need have baroque die arrangement, causes the manufacturing process complexity thus, and cost is too high.Therefore be necessary to provide a kind of new and effective heat-pipe elements.

Summary of the invention

The purpose of this utility model is to provide a kind of high-efficiency heat pipe element, this element heat conduction speed is faster, the Applicable temperature scope is wide, the life-span long, it is simple to make, utilize heat transfer, the heat transmission equipment product of this element, energy savings is more remarkable, and it uses thermal source to can be overheated flue gas, hydrothermal solution, steam, electric heating, solar energy etc.

For achieving the above object; the utility model is taked following design: this high-efficiency heat pipe element comprises and vacuumizes the housing that forms of back soldering and sealing; shell inner surface has a passivation protection layer; filling excites inhibiting solution and inoganic solids powder working medium, the 6-10% that their shared volume total amounts are heat-pipe elements inner chamber total capacity in the housing.

The described inhibiting solution that excites is a sodium dichromate aqueous solutio, and inoganic solids powder working medium is that the inorganic compound of potassium, chromium, silicon, manganese, strontium, tellurium is synthetic and be ground into granularity less than 200 purpose body of powder.Described housing is shell or plate shell.

Described housing can be pipe, shape tube, template cavity body; Material can be carbon steel, stainless steel, aluminium, copper, plastics, glass, pottery etc.; The housing appearance is bare hull or band heat radiation gusset; Working medium can excite corrosion inhibiter and pressed powder working medium with sodium dichromate in the shell, and their shared volume total amounts are inner chamber total capacity 6-10%, protects soldering and sealing by argon arc after vacuumizing.Its main component of solid powdery working medium is that the inorganic compound of potassium, chromium, silicon, manganese, strontium, tellurium is synthetic and be ground into granularity less than 200 purpose flours.

The utility model high-efficiency heat pipe heat-transfer mechanism excites heat-transfer working medium for heating end heat energy, the working medium molecule is shaken at a high speed, under the situation of almost not having thermal resistance heat is reached far-end, all can realize conducting heat in any direction greater than horizontal direction 10 degree angles, length can reach tens of rice.Radiating end temperature equalization under the operating mode.Its axial heat flow density reaches 8.4MW/m2, effectively leads coefficient and reaches 2.0MW/mk, and heat-transfer rate 15Km/s does not almost have phase transition phenomena in the pipe, and interior pressure is little, and the working medium life-span reaches 110,000 hours, applicable working condition 30-1000 ℃.

The utility model has the advantages that: change conventional steel-water heat pipe pure phase and become heat-transfer mechanism, interior pressure is little, has solved high temperature explosive pipe phenomenon; Solid working medium and carrier compatibility are good, can not produce on-condensible gas, have solved the easy Problem of Failure of conventional heat pipe, increase the service life; Heat-conductive characteristic is better than conventional heat pipe, and heat transfer efficiency is greater than 95%, and the manufacturing process operability is good, and production cost is low, and application is extensive.

Description of drawings

Fig. 1 is a kind of structural representation of the present utility model

Fig. 2 a, b are another kind of structural representation of the present utility model

Fig. 3 uses schematic diagram for the utility model

Fig. 4 is the another kind of schematic diagram of using of the utility model

The specific embodiment

As shown in Figure 1 and Figure 2; it is the tubular type high-efficiency heat pipe; wherein 1 is housing; 2 is the passivation protection layer; 3 are solid powdery heat-transfer working medium and excite corrosion inhibiter (30% sodium dichromate aqueous solutio); their shared volume total amounts are cavity total capacity 6-10%; inner chamber is the vacuum shape; after heating end working medium was heated, heat-transfer working medium was stimulated and produces molecule and shake at a high speed, and heat energy moment is reached far-end; and dispel the heat through housing; almost do not have resistance in the heat transmission, the heat transfer loss is approaching zero, radiating end appearance temperature equalization.The air-tightness that act as the reinforcement carrier of table 2 passivation protection layer in the housing, treatment process is for adding thermal control fortune end temperature about 120 ℃ with 30% sodium dichromate aqueous solutio.Tubular type caliber φ 6-φ 100mm scope is all applicable, and wall thickness is determined according to working condition; Among Fig. 2, template cavity gap gets final product greater than 3mm, and 4 is housing, and 5 is the passivation protection layer, and 6 are solid powdery heat-transfer working medium and excite corrosion inhibiter.Can add weldering heat absorption, heat radiation gusset to enlarge heat transfer area at outer surface according to the operating mode needs.The tubular different structures such as U-shaped, bending, spirality that can be made into are with the applicable working condition demand.

The basic structure schematic diagram that Fig. 3, Fig. 4 use for the utility model, wherein 7 is heat exchanger shell, 8 is the utility model high-efficiency heat pipe.Heating agent washes away the high-efficiency heat pipe heating end, and heat reaches cold junction rapidly and heats refrigerant by high-efficiency heat pipe, to reach heat exchange or heat recovery purpose.Its heat transfer efficiency of heat transmission equipment of using the utility model high-efficiency heat pipe can reach more than 95%.

Claims

1, a kind of high-efficiency heat pipe element; it is characterized in that: it comprises and vacuumizes the housing that forms of back soldering and sealing; shell inner surface has a passivation protection layer, and filling excites inhibiting solution and inoganic solids powder working medium, the 6-10% that their shared volume total amounts are heat-pipe elements inner chamber total capacity in the housing.

2, high-efficiency heat pipe element according to claim 1, it is characterized in that: the described inhibiting solution that excites is a sodium dichromate aqueous solutio, and inoganic solids powder working medium is that the inorganic compound of potassium, chromium, silicon, manganese, strontium, tellurium is synthetic and be ground into granularity less than 200 purpose body of powder.

3, high-efficiency heat pipe element according to claim 1 and 2 is characterized in that: described housing is shell or plate shell.