JPH02287065A - Generating chamber of generator for absorption-freezer and manufacturing method thereof - Google Patents

Abstract

PURPOSE:To simplify the structure of a generating chamber by forming an outer covered cylinder which downwardly opens in shape and an inner covered cylinder which is smaller in diameter and height than the outer covered cylinder and downwardly opens in shape, by placing the latter inside the former with a specified space therebetween, and by fixing each to the other by joining. CONSTITUTION:When the generating chamber 1 of a generator 2 in an absorption-freezer is filled with a specified quantity of liquid absorbent through a feed pipe 6, the moisture in the absorbent is vaporized by combustion from a burner 9 so as to concentrate the liquid absorbent. This generating chamber 1 is formed of an outer covered cylinder 3 which downwardly opens in shape and an inner covered cylinder 4 which is smaller in diameter and height than the outer covered cylinder 3, downwardly opens in shape, and is placed with a specified space from and inside the outer covered cylinder 3; the outer covered cylinder 3 and the inner covered cylinder 4 are fixed to each other by joining and placed inside a heating chamber 10. Thus reduced in number of the parts, the generating chamber can be manufactured easily.

Description

Detailed Description of the Invention [Industrial Field of Application] The invention in claim 1 and the invention in claim 12 relate to a regenerator for an absorption refrigerator, and the invention in claim 3 relates to an absorption refrigerator. This invention relates to a method for manufacturing a machine regenerator.

[Prior Art 1] Generally, absorption refrigerators are often used for air conditioning of large structures such as buildings. Such an absorption refrigerator includes an evaporation section that houses a liquid refrigerant, heats the liquid refrigerant to generate refrigerant vapor, and supplies the generated refrigerant vapor to an absorption section, and an absorption liquid made of a lithium salt solution or the like. The refrigerant vapor supplied from the evaporator shown in )Z is absorbed into an absorption liquid made of a lithium salt solution or the like. In this absorption section, the absorption liquid made of lithium salt solution etc. is diluted by absorbing the refrigerant vapor, so such diluted absorption liquid is extracted and the absorption liquid is extracted. A regeneration section is provided for heating to evaporate water vapor, concentrating it, and regenerating it.

As shown in FIG. 8, such an m-generating section 31 is formed in a boiler shape, and is a regenerator 3 that stores the absorption liquid 19 inside.
2, an absorption liquid supply pipe 33 that supplies the absorption liquid 19 to this regenerator 32, and a concentrated solution that supplies the waste solution generated by heating and concentrating this absorption liquid 19 to the above-mentioned collection section. a supply pipe 34; a refrigerant vapor supply pipe 35 that supplies refrigerant vapor generated in the process of heating the absorption liquid 19 to the condensing section; and a heating section 3 provided in the regenerator 10.
7 and a plurality of heating pipes 38 through which the combustion gas of the burner 36 can flow.

In the conventional regeneration unit 31 configured in this way, the absorption liquid 19 made of a dilute solution supplied from the absorption unit via the absorption liquid supply pipe 33 is stored in the regenerator 32,
The absorbing liquid 1 is heated by the heating section 37 in which the burner 36 is ignited.
9 is heated and further heated by a plurality of heating pipes 38 disposed within the regenerator 32,
The moisture in the absorption liquid 19 is evaporated and sent as refrigerant vapor to the condensing section via the refrigerant vapor supply pipe 35.

On the other hand, the concentrated solution thus heated, concentrated, and regenerated is supplied to the absorption section through the concentrated solution supply pipe 34.

[Problem to be solved by the invention] In the regenerator of such a conventional absorption refrigerator, -L
As mentioned above, a plurality of heating pipes 38 are provided inside, and the number of component parts is large and the structure is complicated, so there is a drawback that the manufacturing cost is high when manufacturing the regenerator. . Furthermore, since there are a large number of component parts, the number of joints between the plurality of component parts such as the plurality of heating pipes 38 disposed inside is increased, which also has the disadvantage that manufacturing work becomes complicated. Furthermore, since there are a large number of parts and the joints are warped and complicated, pressure leaks often occur from the joints.

Furthermore, even if such a pressure leak occurs, the repair itself is complicated, and depending on the location of the pressure leak, there may be locations where it is impossible to repair by welding or the like.

Therefore, the technical problem of the invention according to claim 1 is that the structure is simple, the number of component parts is small, the manufacturing cost is low, the manufacturing work is easy, and the pressure leakage is difficult to occur. The object of the invention is to provide a regeneration chamber for a regenerator for an absorption refrigerating machine that can be easily repaired even in the event that a problem occurs. In addition to the technical problem, it is an object of the present invention to provide a regeneration chamber for an absorption refrigerator with better heating efficiency. To easily manufacture a regeneration chamber for an absorption refrigerator.

[Technical Means for Solving the Problem] In order to solve such a technical problem, in the case 11 according to claim 1, an outer box cylinder opening downward, and an outer box cylinder opening from the outer box cylinder are provided. The outer lid tube is formed to have a small diameter and height, and has an inner lid tube that opens downward and is arranged inwardly at a predetermined interval through which an external force is passed. and the opening edge of the inner covered tube are joined and fixed to the rib over the front peripheral edge, thereby closing the space defined between the outer covered tube and the inner covered tube, The structure is such that an absorbent liquid can be stored between the external force covered cylinder and the inner inner cylinder, and in the invention set forth in claim 2, the outer side opening [1] A covered cylinder, and an inner covered cylinder which is formed to have a smaller diameter and height than the outer covered cylinder, is opened in the 'F direction, and is arranged at a predetermined interval inside the outer covered cylinder. The opening of the outer covered cylinder [1 edge and the opening of the inner covered cylinder] 1 edge refers to the opening of the outer covered cylinder and the opening of the inner covered cylinder.
The space defined between the outer lid tube A1 and the inner tube A11 is closed, and a heat transfer plate extending in the vertical direction is provided on the outer peripheral surface of the outer lid tube in the circumferential direction. A plurality of absorbing liquids are provided along the outer canister and the inner canister is configured to store the absorbent liquid between the outer canister and the inner canister. The power to form the outer covered cylinder that opens [1].

By drawing J, the diameter, height, and J-measure are smaller than the outer wrapped cylinder, and a four-cylinder with an internal force that opens downward is formed, and this inner covered cylinder is used as a steam outer covered cylinder. The opening edges of the outer wrapping tube and the opening edge of the inner covered tube are joined to each other over the entire circumference, so that the outer winding tube and the inner It is configured to close the space defined between the absorption refrigerator and the covered cylinder to create a regeneration chamber for the regenerator.

[Example] Based on the example shown in the attached drawings, claim 1 (
A detailed description of the described invention is provided.

As shown in FIG. 1, the regenerator 2 for an absorption refrigerating machine using the regeneration chamber 1 of the regenerator for an absorption refrigerating machine according to the present embodiment includes a heating chamber 10 and a regenerator disposed inside the heating chamber 10. It is equipped with a chamber l. This heating chamber 10, as shown in FIG.
The whole is formed into a substantially cylindrical shape, and a heating burner 9 is provided approximately in the center of the F-face portion 17 so as to burn inward of the heating chamber 10. An exhaust pipe 8 for exhausting combustion gas generated by combustion of the bar and na 9 is provided at the upper end of the side surface portion 18 .

The number of regeneration chambers 1 disposed within this heating chamber 1O is 2.
The outer winding cylinder 3 opens at the center, and the diameter and height are smaller than those of the outer covered cylinder 3. It consists of an inner tube 4 arranged in a straight line.

As shown in FIGS. 1 and 2, the outer tube 3 and the inner covered tube 4 are both made of cylinders.
The opening edge 15 formed at the lower end of the M cylinder 3 and the inner M
The open 1'' edge 16 of n is joined and fixed to each other over the entire periphery, and the space 5 defined between the outer shell 113 and the inner four-cylinder 4 is closed. As shown in FIG. As shown in FIG. 2, an absorption liquid supply vibro is fixed by welding, and the absorption liquid 19 diluted by absorbing refrigerant vapor in an absorption part (not shown) passes through this absorption liquid supply vibro. , are supplied and stored in the FT student room 1. Also, approximately in the center of the first side part 20 of the regeneration chamber 1, there is a top part 2 of the heating chamber 10.
A refrigerant vapor discharge pipe 7 is provided through the refrigerant vapor discharge pipe 7, and when the absorption liquid 19 stored in the regeneration chamber 1 is heated by the burner 9 and the water in the absorption liquid 19 evaporates, the evaporated water is removed. The moisture is supplied as refrigerant vapor through the discharge pipe 7 to a compressor (not shown).

Further, as shown in FIG. 1, the regeneration chamber 1 is formed with four parts 11 defined by the inner covered cylinder 4, and the regeneration chamber 1 is located at the T of the heating chamber 10. Surface part 17
The four parts 11 are arranged and fixed in such a way that the four parts 11 are firmly positioned on the burner 9 provided in the burner 9.

In the regenerator 2 for an absorption refrigerator having 41 regeneration chambers 1 configured in this way, when a predetermined amount of absorption liquid is stored in the regeneration chamber 1 via the absorption liquid supply vibro, , is heated by combustion in the burner 9, moisture in the absorption liquid evaporates as refrigerant 7A gas, and the absorption liquid is heated and concentrated. In this case, the combustion gas generated by combustion of the eights 9 directly heats the inner bottom surface 25 defining the four parts 11 formed in the regeneration chamber 1 . Thereafter, as indicated by the arrow ' in FIG. The regeneration chamber 1 is sequentially heated while rising from the bottom surface 23 of the regeneration chamber 1 along the outer circumferential surface 24 of the regeneration chamber 1. After heating the −F side portion 20 of the regeneration chamber 1, the heat is exhausted to the outside of the heating chamber 10 via an exhaust pipe 8 provided at the − end of the heating chamber 10. When the regeneration chamber 1 is heated in this way, the moisture contained in the absorption liquid 19 stored in the regeneration chamber 7 evaporates,
The refrigerant vapor is supplied to a condenser (not shown) via a refrigerant vapor exhaust pipe 7.

Next, the invention according to claim 2 will be explained in detail based on the embodiments shown in the accompanying drawings.

As shown in FIG. 3, in the regeneration chamber 26 of the regenerator for an absorption refrigerating machine according to the present embodiment, there is a heat exchanger plate 14 extending to
A plurality of regeneration chambers 26 are provided along the circumferential direction of the regeneration chamber 26.

In this embodiment, as shown in FIGS. 3 and 4, the heat exchanger plate 14 is composed of fins each having a substantially trapezoidal side surface, and is arranged at predetermined intervals along one circumferential direction. , 12 sheets are provided.

Therefore, when the absorption refrigerating machine regenerator using the regeneration chamber 26 according to the present embodiment is used, the combustion gas generated by the combustion of the burner 9 is transferred to the inner bottom surface as in the embodiment shown in FIG. After heating the portion 25, the inner circumferential surface portion 22 reaches the bottom surface portion 23.

The inner circumferential surface portion 22 and the bottom surface portion 23 are heated, respectively. This combustion gas heats the outer circumferential surface part 24 and the upper surface @20 while rising in the outer circumferential surface part 24, but at this time, not only the outer circumferential surface part 24 but also the heat exchanger plate made of fins are heated. 1
Heat 4 as well.

Therefore, the absorption liquid 19 housed inside is heated not only by the radiant heat of the outer circumferential surface part 24 but also by the conductive heat from the fins 14. It is possible to heat the absorption liquid 19 more efficiently than in the case of the chamber 1.

Next, a method for manufacturing a regenerator for an absorption refrigerator according to the invention described in claim 3 will be described based on the embodiment shown in the attached drawings.
Explain in detail.

Regarding the production capacity υ of the llf biochamber of the regenerator for an absorption chiller according to this embodiment, as shown in FIGS. 5 and 6, when the regeneration chamber of the regenerator for an absorption chiller is created First, the outer covered cylinder 3, which opens in the F direction I-1, is formed by press forming by drawing. Similarly, by press forming through drawing, the diameter and height dimension intersection 1 are smaller than that of the outer covered cylinder 3, and the inner covered cylinder 4 that opens to the lower blade is formed. do.

The opening edge 15 of the inner covered cylinder 4 formed in this manner projects outward over the entire circumferential surface, and is formed as a flange portion, as shown in FIG. 5. As shown in FIG. 5, the flange portion 15 forming the opening edge is
1-side part 2 of the outer covered cylinder 3 and hi1 of the inner covered cylinder 4
When the inner covered cylinder 4 is arranged inside the outer covered cylinder 4 with the middle 20 of the 1j part 20 aligned, the radial dimension intersection 4 of the flange part 15 as described in The distance dimension 12 between the inner circumferential surface portion 22 of the outer cover f:43 and the outer circumferential surface portion 24 of the outer cover f:43 is formed to be larger.

Next, as shown in FIG.
With a predetermined interval L2 inside the cylinder, an inward force of 2il is applied to the cylinder 4.
The center of the -1-plane part 20 of and the 1-plane part 2 of the outer part 113
1 so that the centers of the two are almost aligned with each other. After that, the opening edge 16 of the outer covered cylinder 3 and the flange 15 forming the opening edge of the inner covered cylinder 4 are joined over the entire periphery and fixed by welding.
A space 5 defined between the outer covered cylinder 3 and the inner covered cylinder 4 is closed.

Then, as shown in FIG.
- By fixing the refrigerant vapor discharge pipe 7 by welding to the center of the surface part 21, by opening a hole 27 at the F end of the outer covered cylinder 3, and by fixing the absorption liquid supply vibro to the hole 27 by welding. , to create the playback room 1.

In addition, in each embodiment of the invention described in claim 1 and claim 2, the outer covered cylinder 3 and the inner covered cylinder 4 are arranged as shown in FIGS. 2 and 4, respectively. As shown in the figure, the case where it is formed in a cylindrical shape has been described as an example, but it is not limited to the above embodiments and may be formed in a rectangular tube.

Furthermore, in the embodiments of the inventions recited in claims 1, 2, and 3, the regeneration chamber 1 in which the single four parts 11 are formed by an inner box cylinder has been described as an example; F
The present invention is not limited to the registered embodiment, and as shown in FIG. 7, a plurality of four parts 28 may be formed in the regeneration chamber 30 along the circumferential direction.

When the plurality of four parts 28 are formed along the circumferential direction in this way, unlike the cases of the above-mentioned embodiments, the combustion gas is distorted as shown by the arrow in FIG. As the heating time to the regeneration chamber 3o becomes longer, the contact area of the inner circumferential surface and the bottom surface of the regeneration chamber with the combustion gas becomes larger, so that the absorption liquid stored inside the regeneration chamber 3o becomes more concentrated than in the case of the former embodiment. It becomes possible to increase the heating efficiency to 19.

[Effect of the invention] As shown in the following, in the invention according to claim 1, r
an outer covered cylinder that opens toward the outside; Since the regeneration chamber of the regenerator for an absorption chiller is constructed by joining and fixing the regenerator with the inner covered cylinder, it is not necessary to install multiple heating pipes inside the regenerator as in the past. Therefore, the number of parts can be reduced and the structure can be simplified, making it possible to reduce the installation cost much more than before.Also, the number of parts can be reduced. Since the number of joints between each component is reduced, it is easy to manufacture the regeneration chamber of the regenerator for an absorption chiller.Furthermore, the number of joints between each component is reduced. Therefore, it is possible to prevent pressure leaks from the joints of the regenerator for absorption chillers, and even if pressure leaks occur, repair work is easy. play.

Moreover, in the invention of claim 2, in addition to the effects of the invention of claim 2, it is possible to improve the heating efficiency of the absorption liquid by using conductive heat.

Furthermore, according to the invention of claim 3, there is a regenerator for an absorption refrigerating machine that has a small number of component parts, can reduce manufacturing costs, can be easily manufactured, has few joints, and can prevent pressure leakage. The chamber can be easily manufactured. Further, since the number of each component can be reduced, the number of two joints can be reduced, and repair work can also be made easier.

[Brief explanation of drawings]

FIG. 1 shows an embodiment of the regeneration chamber of the regenerator for an absorption refrigerator according to the invention as set forth in claim 1, and FIG.
(2) shows a line sectional view, and FIG. 3 shows an embodiment of one main chamber of the regenerator for an absorption refrigerator according to the invention according to claim 2;
FIG. 4 is a cross-sectional view taken along the 1'V-rtr line in FIG. 3, and FIGS. Fig. 5 is a sectional view corresponding to the line ■-■ in Fig. 1 showing the state in which the external force M cylinder and the inner lid cylinder constituting the regeneration chamber are joined, and Fig. 6 shows the regeneration chamber. The constituting outer box cylinder and inner box cylinder are joined, and
Apply external force M to the absorption liquid supply pipe and cold tofu discharge pipe.
A sectional view corresponding to the line ■-■ in FIG. 1 showing a state in which it is welded and fixed to a cylinder, and FIG. 7 is a cross-sectional view showing another embodiment of the regeneration chamber of the regenerator for an absorption refrigerator according to the invention set forth in claim 1. 8 are conceptual diagrams showing a conventional regenerator for an absorption refrigerator. ■...Regeneration chamber 3...Outer five-lid tube 5...Space 7...Refrigerant vapor exhaust pipe 8...Exhaust pipe 0...Heating chamber 2...Gap 4...Fin (Heat transfer plate) 5... Opening edge 6... Open [) Edge 7... Surface portion 9... Absorbing liquid 1...] 1 Surface portion 3...l (Surface portion 5... - Inner bottom part 7... Hole part 9... Fint... Regeneration part 3... Absorption liquid supply pipe 4... Concentrated solution supply pipe (flange part) 18... Side part 20... Upper surface part 22...Internal force peripheral surface part 24...External force peripheral surface part 26...Regeneration chamber 28...Four parts 30...Regeneration chamber 32...Regenerator 2...ILF generator 4... Inner box cover 6...Absorption liquid supply pipe 9...Burner 11...Four parts 13...Gap 35...Refrigerant vapor supply pipe 3G...Burner 37...Heating part 38... heating pipe

Claims (3)

[Claims] (1) An outer covered tube that opens downward, and a diameter and height smaller than the outer covered tube, which opens downward and is arranged at a predetermined interval inward of the outer covered tube. The opening edge of the outer covered tube and the opening edge of the inner covered tube are:
By being joined and fixed to each other over the front periphery,
An absorption refrigerator characterized in that a space defined between an outer covered tube and an inner covered tube is closed, and an absorption liquid can be stored between the outer covered tube and the inner covered tube. regenerator regeneration chamber. (2) An outer covered cylinder that opens downward, which is formed to have a smaller diameter and height than the outer covered cylinder, is opened downward, and is arranged at a predetermined interval inside the outer covered cylinder. The opening edge of the outer covered tube and the opening edge of the inner covered tube are joined and fixed to each other over the entire periphery, so that the outer covered tube and the inner covered tube are The space defined between the two is closed, and a plurality of heat transfer plates extending in the vertical direction are provided along the circumferential direction on the outer circumferential surface of the outer covered cylinder. A regeneration chamber of a regenerator for an absorption refrigerator according to claim 1. (3) While forming an outer covered tube that opens downward by drawing, an inner covered tube that opens downward and has a smaller diameter and height than the outer covered tube is formed by drawing. , by arranging this inner covered tube inside the outer covered tube at a predetermined interval, and welding and fixing the opening edge of the outer covered tube and the opening edge of the inner covered tube to each other over the entire periphery. , a regeneration chamber for a regenerator for an absorption refrigerating machine, characterized in that a space defined between an outer covered cylinder and an inner covered cylinder is closed to create a regeneration chamber for a regenerator for an absorption refrigerating machine. Production method.