CN1178036C - Generator structure for absorption-diffusion type refrigerating device - Google Patents

Abstract

A generator structure used for absorbing the diffusion type refrigerating plant, it includes heating device, double-pipe and heat conduction bush locating between inside and outside pipe of the double-pipe located in heating device, the inside pipe of the double-pipe is a concentrated aqueous ammonia solution pipe, and the outside pipe is a dilute aqueous ammonia solution pipe; the heating device heats the double sleeves so that the concentrated ammonia water solution in the inner pipe releases ammonia gas to form bubble flow due to heating, and the heat conduction sleeve is used for reducing the heat resistance between the inner pipe and the outer pipe so as to reduce the temperature for activating the bubbles of the generator.

Description

Be used in the generator architecture of absorption-diffusion type refrigerator

The present invention relates to a kind of generator architecture that is used in absorption-diffusion type refrigerator, particularly relate to a kind of utilization heat conduction sleeve,, and then reduce the innovation structure of steam bubble activationary temperature so that reduce the thermal resistance between inner and outer pipe.

General ammonia absorption type freeze cycle and the difference of compression freeze cycle are the different of mode that it finishes compression, promptly in absorption freezing circulation, after its low pressure ammonia steam is absorbed by water, and with hydraulic pump with this liquid solution pump to high pressure.As shown in Figure 1, it is the action flow chart of ammonia absorption type freeze cycle, and at first low pressure ammonia steam leaves behind the evaporimeter and enters absorber, and is absorbed by dilute ammonia solution in it, this process is a little more than carrying out under the ambient temperature, so wherein must there be heat to reach the external world in temperature; Moreover, with the concentrated ammonia solution of gained with pump through a heat exchanger, and pump is to the generator that remains under the high pressure-temperature, thus, the high temperature heat source in this generator import heat into, and make ammonia steam be evaporated out by concentrated ammonia solution, and flow to the formation liquid ammonia that condenses in the condenser, and enter evaporimeter, then return in the absorber by the dilute ammonia solution that this generator produced in addition, to finish an absorption freezing circulation through over-heat-exchanger.

In addition, in refrigerating circulation system, for the waste that prevents that energy loss from causing, there is the design of various pipeline in regular meeting, and as design of two sleeve pipes (or double pipe) etc., and this pair sleeve pipe is the thermal treatment zone that can be applicable to generator, so that have more complete heat exchange; But the interior pipe of this pair sleeve pipe is to be concentrated ammonia liquor liquation pipe, promptly because of heat pass to need by managing in the outer tube indirect, therefore, if the concentrated ammonia solution generation vapour of pipe in wanting to make, when liquid separates certainly will be heated to suitable high temperature so that activate the generation of steam bubble; Therefore, this generator need provide sizable external energy so as to producing high temperature, it not only increases whole power consumption, and also be restricted (for example can't adopt in generally can producing, the fuel cell and the general used heat of low temperature, so also can't be implemented on small-sized refrigerator etc.) in the design application facet; As seen, on reality is used, obviously have inconvenience and have defective, and demand urgently being improved.

The object of the present invention is to provide a kind of generator architecture that is used in absorption-diffusion type refrigerator, to overcome the existing in prior technology defective.

The object of the present invention is achieved like this: a kind of generator architecture that is used in absorption-diffusion type refrigerator, its key is, includes two sleeve pipes and that a heater, is positioned at this heater and is located at heat conduction sleeve between the inner and outer pipe of this pair sleeve pipe; It has complete heat exchange, and can reduce the thermal resistance between inner and outer pipe, and then reduces the steam bubble activationary temperature of generator.

The described generator architecture that is used in absorption-diffusion type refrigerator, wherein the interior pipe of this pair sleeve pipe is to be the concentrated ammonia solution pipe, outer tube then is the dilute ammonia solution pipe.

The described generator architecture that is used in absorption-diffusion type refrigerator wherein should heat conduction sleeve surface can offer plural groove.

This shows, the invention provides a kind of generator architecture that is used in absorption-diffusion type refrigerator, it includes two sleeve pipes and that a heater, is positioned at this heater and is located at heat conduction sleeve between the inner and outer pipe of this pair sleeve pipe, wherein, the interior pipe of this pair sleeve pipe is to spill pipe for concentrated ammonia liquor is molten, outer tube then is the dilute ammonia solution pipe, and should heat conduction sleeve surface be to offer plural groove, and the dilute ammonia solution that is beneficial to outer tube passes through; In view of the above,, can have more complete heat exchange, and utilize this heat conduction sleeve to be reduced thermal resistance between inner and outer pipe, and then reduce the steam bubble activationary temperature of generator by heating this pair sleeve pipe.

Below in conjunction with embodiment and accompanying drawing thereof, feature of the present invention and technology contents are described in further detail, yet shown in accompanying drawing only provide with reference to and the explanation usefulness, be not to be used for the present invention is limited.

Fig. 1 is the action flow chart of general ammonia absorption type freeze cycle;

Fig. 2 is the enforcement state diagram of generator architecture of the present invention;

Fig. 3 is the side cut away view of generator architecture of the present invention;

Fig. 4 is the cross-section cutaway view of the B-B part of Fig. 3;

Fig. 5 is the cross-section cutaway view of the C-C part of Fig. 3.

The present invention provides a kind of generator architecture that is used in absorption-diffusion type refrigerator, wherein, this absorption-diffusion type refrigerator (as shown in Figure 2) is to comprise a dense ammonia water trough 1, a generator 2, a vapor-liquid separating device 3, a condenser 4, an evaporimeter (figure slightly), an absorber 5, and necessary pipeline 6 is formed with control device members such as (figure slightly).

This refrigerating plant is as refrigerant agent with ammonia, and the concentration by ammoniacal liquor can be divided into concentrated ammonia solution and dilute ammonia solution, the cooling action specification of this refrigerating plant is as follows: at first, the concentrated ammonia solution 70 that flows out from this dense ammonia water trough 1 is heated by this generator 2, and rising along with temperature, produce steam bubble so that make this concentrated ammonia solution 70 begin vaporization, and isolate dilute ammonia solution 71 and ammonia steam 72; Wherein, 72 of this ammonia steam enter this condenser 4 and give condensation, so that make this ammonia steam 72 ammonia liquid 73 of freeze-outing, then this ammonia liquid 73 promptly enters this evaporimeter (figure slightly), and make this ammonia liquid 73 be evaporated into ammonia (figure slightly), and the hydrogen (figure slightly) that this ammonia (figure slightly) is with this absorber 5 certainly flows out mixes, flows back into this dense ammonia water trough 1 so that form mixing ammonia and hydrogen 74.

In addition, the dilute ammonia solution 71 that above-mentioned generator 2 is separated is to enter this absorber 5, the dilute ammonia solution 71 of this absorber 5 be can with mix ammonia and hydrogen 74 mutual absorptions by this absorber 5, so that this dilute ammonia solution 71 is absorbed gradually become concentrated ammonia solution 70 and flows back to this dense ammonia water trough 1, in addition the mixing ammonia by this absorber 5 also is absorbed with hydrogen 74 and gradually becomes hydrogen (figure slightly) to enter this evaporimeter (figure omits), so as to finishing the motion flow of a freeze cycle.

In view of the above, the present invention's generator of being primarily aimed at above-mentioned absorption-diffusion type refrigerator is designed; Please consult Fig. 2 and shown in Figure 3 simultaneously, the concentrated ammonia solution 70 that flows out from this dense ammonia water trough 1 promptly flows into a concentrated ammonia solution pipe 20, this concentrated ammonia solution pipe 20 is to be socketed on a dilute ammonia solution pipe 21 interior (as shown in Figure 4) and to form two sleeve pipes with coaxial manner, and this concentrated ammonia solution pipe 20 is to be connected in these vapor-liquid separating device 3 places with this dilute ammonia solution pipe 21, also be, 70 of concentrated ammonia solutions by this generator 2 are separated into dilute ammonia solution 71 and ammonia steam 72, and when both flow to these vapor-liquid separating device 3 places, this ammonia steam 72 can up flow to this condenser 4, and this dilute ammonia solution 71 then down refluxes and enters in this dilute ammonia solution pipe 21.

In addition, this generator 2 is to utilize a heater 22 to be heated by this is dense, dilute ammonia solution pipe 20, concentrated ammonia solution 70 and dilute ammonia solution 71 in 21, and make this concentrated ammonia solution 70 be separated into dilute ammonia solution 71 and ammonia steam 72, and dense in heating place, dilute ammonia solution pipe 20,21 are equipped with a heat conduction sleeve 23, the surface of this heat conduction sleeve 23 is to offer plural groove 230, pass through in order to the dilute ammonia solution 71 in this dilute ammonia solution pipe 21, and should heat conduction sleeve 23 be to reduce that this is dense, dilute ammonia solution pipe 20,21 thermal resistance, and then the bubble activationary temperature of reduction generator.

In sum, the generator architecture that is to use in absorption-diffusion type refrigerator disclosed in this invention, it mainly utilizes a heat conduction sleeve, can make generator in, low temperature just can reach the effect that vapour, liquid separate.

But; the above only is a preferable possible embodiments of the present invention, is not so limits protection scope of the present invention, so the equivalent structure that every utilization specification of the present invention and accompanying drawing content are carried out changes; all be contained in the determined protection domain of claim of the present invention, close and give Chen Ming.

Claims (1)

1. A generator structure used in an absorption-diffusion refrigeration device, characterized in that it includes a heating device, a double casing positioned next to the heating device, and an inner and outer tube of the double casing. The heat conduction sleeve, wherein, the inner tube of the double sleeve is a concentrated ammonia solution tube, and the outer tube is a dilute ammonia solution tube, and the surface of the heat conduction sleeve is provided with multiple grooves. Accordingly, by heating the double The casing can have complete heat exchange, and can reduce the thermal resistance between the inner and outer tubes, thereby reducing the bubble activation temperature of the generator.

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