CN2524179Y - Large diameter vacuum pipe adsorption generator for solar air conditioner - Google Patents

Abstract

The utility model relates to a big diameter vacuum tube absorbing generator for the solar energy refrigeration air conditioner. The utility model adopts the big diameter vacuum tube as the heat collecting tube and has the same axes with the absorbing tube; a vacuum liner is provided between the vacuum glass tube surface and the surface of the absorbing tube; the absorbing tube is provided with a block absorbing agent; the inner and outer wall of the absorbing tube are provided with a heat conducting sheet; the axis direction length of the block absorbing agent is smaller than the axis direction of the vacuum tube to form a medium transmission space; and the outer surface of the absorbing tube is provided with a medium transmission passage connecting hole. The utility model seals the metal absorbing tube in the vacuum heat collecting tube of a bigger diameter to ensure the high efficient of the generator to absorb the radiation energy of the sun and inhibit the heat lose of the absorbing device; the absorbing agent passage is provided with rational ribs and medium transmission passage to improve the absorbing capability and the desorption capability of the absorbing agent.

Description

The heavy caliber vacuum tube adsorbing generator that is used for solar refrigeration and air-conditioning

Technical field:

The utility model relates to a kind of vacuum tube adsorbing generator, relates in particular to a kind of heavy caliber vacuum tube adsorbing generator that is used for solar refrigeration and air-conditioning, belongs to solar energy heat utilization and energy-conserving and environment-protective technical field.

Background technology:

In the research of carrying out solar refrigeration and air-conditioning, adopt two kinds of modes to carry out solar refrigeration usually both at home and abroad, a kind of is the absorption solar energy refrigeration, and another kind of is that adsorbed solar freezes, wherein in the majority with the research report of absorption solar energy refrigeration.But it is that system cost is too high that absorption refrigeration is used for a big shortcoming of civil nature, and device is unfavorable for that miniaturization uses, and this its application for single user or distributing user is restricted.Solid adsorption refrigeration has characteristics such as apparatus structure is simple, easy and simple to handle, is more suitable in the application of decentralized user and small collectives.But performance and cost that it is adsorbing generator that the restriction solid adsorption refrigeration moves towards a main factor of industrialization.At present in the exploitation and research of solar energy solid adsorb refrigerating device, in the majority with the adsorbing generator that sheet metal shell is made, but the high-efficiency vacuum tube of superior performance is directly bright in the people sees with the research report that adsorbent combines together mutually, the technology of adsorbent curing is not applied among the design of solar refrigeration and air-conditioning.Because existing solar refrigeration technology adopts plate and shell structure, on the one hand, has restricted the rising of adsorbent resolution temperature, on the other hand, the possibility ubiquity of vacuum leak had both influenced the operational efficiency of system, had also directly influenced the security and the reliability of system's operation.

The utility model content:

The purpose of this utility model is at the deficiencies in the prior art, heavy caliber vacuum tube adsorbing generator in a kind of new and effective be directly used in solar refrigeration and air-conditioning is provided, make it simple in structure, adsorbent in guaranteeing when solar radiation it is heated to sufficiently high temperature (above 200 ℃) desorbs refrigerant efficiently, by cooling water heat of adsorption is taken away effectively in adsorption process, formed warm water can use for the user.

For realizing such purpose, adopting heavy caliber vacuum tube and metal adsorption tube in the technical solution of the utility model is the structure of concentric, between glass tube and absorbing cylinder outer metallic surface, form vacuum interlayer, be filled with block adsorbent between the inside and outside interlayer of absorbing cylinder metal, and be provided with the heat transfer fin between the absorbing cylinder surfaces externally and internally, the absorbing cylinder inner surface forms the passage that can be used as by cooling medium.Block adsorbent itself is connected with circular hole as mass transfer channel, and the axial length of adsorbent body is less than the axial length formation mass transfer space of vacuum tube.

The utility model is directly put into vacuum tube collector efficiently with block adsorbent body, directly reserves the mass transfer space in vacuum tube collector, and arranges the heat transfer fin between adsorbent, and is furnished with the cooling duct at the adsorbent internal surface layer.This structure has guaranteed that in desorption process adsorbent can pass through heavy caliber vacuum tube efficient absorption solar radiation energy, and vacuum tube also prevents the external heat loss through convection of adsorbent in the adsorption process simultaneously; And in adsorption process, the cooling medium of adsorbent internal surface cooling duct can effectively be taken away the absorption heat.The heat transfer fin of arranging between the adsorbent can improve heat-transfer effect effectively, and the hole pattern on the block adsorbent directly links to each other with the mass transfer space, guarantees mass transfer smoothness in desorb and the adsorption process.

The heavy caliber vacuum tube collector is produced on request by the specialized factory that produces solar water heater, puts into ribbing metal donut after adsorbent is suppressed by block sorbing material with holes and makes.Connection between the adsorbing generator need only directly connect by flange between cooling duct and mass transfer channel, and can select the quantity of adsorbing generator to constitute total adsorbent bed body in the absorbing refrigeration system according to the size of refrigerating capacity.In a word, adopt heavy caliber vacuum tube adsorbing generator can improve the heat and mass effect of adsorbent bed effectively, and the vacuum that can effectively solve in the adsorbing generator is kept problem.

The utility model adopts the heavy caliber vacuum tube as heat collector, and will directly load in vacuum tube collector with the block sorbent material of mass transfer channel, efficiently and effectively has improved the performance of adsorbing generator in the solar refrigeration and has reduced its manufacturing cost, can be conveniently used in the solar refrigeration and air-conditioning system, and make solar refrigeration and air-conditioning can enter into civilian family with the process of practicability.

The specific embodiment:

Below in conjunction with accompanying drawing the utility model is elaborated.

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model structure side view.

As shown in the figure, the utility model adopts heavy caliber vacuum glass pipe 3 as the hot device of collection, and and outer surface 1 and inner surface 6 absorbing cylinder that is the round metal housing be concentric, vacuum glass pipe surface 3 and absorbing cylinder Form vacuum interlayer 2 between the outer surface 1, filling is inhaled with the block adsorbent 5 in mass transfer hole 9 in the absorbing cylinder Settled heat transfer rib sheet 8 on the inside and outside wall of attached tube, the axial length of block adsorbent 5 is less than vacuum tube 3 Axial length and form mass transfer space 4. Offer hole 7 on the absorbing cylinder outer surface 1, as adsorbing generator Mass transfer channel interface with the adsorb refrigerating device remaining part. Scribble selectively on the outer surface 1 of absorbing cylinder and be coated with Layer is strengthened the solar energy reception.

In the heating desorption process, block adsorbent 5 is accepted solar energy by the outer metallic surface 1 of absorbing cylinder Emittance raises and desorbs refrigerant the temperature of adsorbent 5, separates the refrigeration agent of sucking-off and passes through adsorbent Duct 9 enters mass transfer space 4, enters in the condenser of refrigeration system by hole 7 again. In the absorption refrigeration mistake In the journey, the adsorbent adsorption refrigerating agent, the absorption heat that produces is by passing through the cold of absorbing cylinder metallic interior surface 6 Media matter is taken away. Owing to settled heat transfer rib sheet 8 at the inside and outside wall of absorbing cylinder, so in the heating desorption mistake The solar energy emittance that journey middle rib sheet can be accepted absorbing cylinder outer metallic surface 3 passes to suction comparatively evenly Attached dose of intermediate layer, and the absorption heat can be reached in the absorbing cylinder metal effectively at cooling absorption process middle rib sheet Allow coolant media take away on the wall surface 6. Owing to adopt the method for vacuum and augmentation of heat transfer, mass transfer, can make suction The efficient of generator enclosure significantly improves.

The utility model is packaged in the metal adsorption tube among the bigbore vacuum heat collection pipe, guaranteed that adsorbing generator absorbs the solar radiation energy efficiently, suppressed simultaneously the external radiation loss of absorber effectively, heat transfer fin and mass transfer channel have reasonably been arranged in the adsorbent passage, the absorption property and the desorption performance of adsorbent are significantly improved, adsorbing generator with extraneous be connected, install very convenient.

When practical application, it is integrated to select several vacuum tube adsorbing generators to carry out to the demand of refrigerating capacity according to the user, is formed by connecting with condenser, evaporator tube road, valve again, and the right selection of refrigeration working medium is decided according to the refrigeration purposes.In general, adopt the refrigeration system of heavy caliber vacuum tube adsorbing generator, the temperature of inner adsorbent can reach about 200 ℃, so adsorbent selects molecular sieve comparatively suitable, correspondingly cold-producing medium selects water comparatively desirable, because of the latent heat of vaporization of water is big, has refrigeration preferably during idle call.Adopt heavy caliber vacuum suction generator, can make fairly large solar powered adsorption refrigeration air-conditioning system practicability, and can reduce manufacturing cost and installation cost effectively.Under sunshine, radiation intensity was 800～900 watts every square metre, the condition at 8 hours sunshine, unit square rice collector area heat-collecting temperature can reach about 200 ℃, realize about 200 watts of refrigeration work consumption, the plate adsorbing generator improvement in performance that ratio is conventional also improves about 30%, has better market application.

Claims (1)

1, a kind of heavy caliber vacuum tube adsorbing generator that is used for solar refrigeration and air-conditioning, it is characterized in that heavy caliber glass tube with vacuum (3) and absorbing cylinder are concentric, form vacuum interlayer (2) between vacuum glass tube-surface (3) and the absorbing cylinder outer surface (1), the block adsorbent (5) in filling band mass transfer hole (9) in the absorbing cylinder, settle heat transfer fin (8) on the inside and outside wall of absorbing cylinder, the axial length of block adsorbent (5) forms mass transfer space (4) less than the axial length of vacuum tube (3), offers mass transfer channel interface holes (7) on the absorbing cylinder outer surface (1).