JPS61130758A - Regenerator for absorption water chiller and heater - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a regenerator for an absorption chiller/heater, and in particular, the outer wall of the first regenerator is also used as a heat transfer surface to improve thermal efficiency. Concerning a regenerator for an absorption chiller/heater.

[Conventional technology]

As a refrigeration cycle of this type of absorption chiller/heater, a structure as shown in FIG. 3 is known.

In FIG. 3, the high temperature regenerator 10 is provided with a burner 12 and communicates with a separator 16 via a pipe 14t. Line to separator 16, steam pipe 18 and liquid feed pipe 20
This is the provision. An outlet pipe 24 of the low temperature regenerator 22 to which the steam pipe 18 is connected is connected to a condenser 26 . Also,
The low temperature regenerator 22 and the condenser 26 are also communicated by a steam pipe 28. Furthermore, the condenser 26 communicates via a sparge pipe 30 with an evaporator 34 in which a cold water heat exchanger 32 is provided.

On the other hand, the 20 liquid sending pipes mentioned above are connected to the high temperature heat exchanger 36. The outlet pipe 38 of the high temperature heat exchanger 36 is connected to the low temperature regenerator 22. A concentrated solution pipe 40 provided at the bottom of the low-temperature regenerator 22 is connected to an absorber 44 via a low-temperature heat exchanger 42. A cooling water heat exchanger 46 is disposed in this absorber 44, and this cooling water heat exchanger 46
It is connected to a cooling water heat exchanger 50 disposed in the condenser 26 via a connecting pipe 48t.

One end of a return pipe 52 is connected to the lower part of the absorber 44, and the other end of the return pipe 52 is connected to a high temperature via a circulation pump 54, a low temperature heat exchanger 42, and a high temperature heat exchanger 36t. It is connected to the regenerator 10.

In addition, 56 is a chimney.

The regenerator in the next absorption chiller with this configuration is
There were those shown in Figures 4 and 5.

FIG. 4 is a diagram showing an example of the configuration of a conventional regenerator using a burner that emits flame upward.

The regenerator 10 is provided with a combustion chamber 60 and a combustion chamber 6.
0 is connected to the chimney 56 via the smoke pipe section 621-.

A burner 12 is installed in the combustion chamber 60 as shown in the figure.

According to such a regenerator 10, the exhaust gas combusted in the combustion chamber 60 passes through the smoke pipe 62t and is discharged into the atmosphere through the chimney 56. The solution is injected through the solution inlet 64, heated, and then discharged through the solution outlet 66.

FIG. 5 is a diagram showing an example of the configuration of a conventional regenerator in which a burner that emits flame sideways is provided all around the burner.

The regenerator 10 is provided with a combustion chamber 60, which also communicates with the chimney 56 via a combustion pipe section 62. Combustion chamber 6
0 is installed with a burner] 2 so that the flame from the burner 12 is directed in the opposite direction.

The exhaust gas burned in the combustion chamber 60 passes through the smoke pipe 62 and is discharged into the atmosphere from the chimney 56. Further, the solution enters through the solution inlet section 64, is heated, and is discharged through the solution outlet section 66.

[Problems solved by the invention]

However, in such conventional techniques, the flame and exhaust smoke generated by combustion come into contact with the solution only on the inner wall surface of the regenerator, and the outer wall surface is not utilized at all. Therefore, conventionally, as shown in FIGS. 4 and 5, smoke pipes are provided at the tth position to increase the heat transfer area. like this ! As can be understood from FIG. 4 or FIG. 5, the configuration was such that the flame was directed upward or sideways, and the flame, exhaust gas, and solution flowed in parallel. This method leads to the following problems: (1) Heat transfer surface'! R1I: In order to widen the range, the regenerator itself must be completely cleaned.

(2) Providing smoke pipes increases the heat transfer area, but it also makes the regenerator more complex.

(3) When the solution and exhaust gas flow in parallel, heat transfer performance deteriorates.

The present invention was made in order to solve the above-mentioned problems, and its purpose is to provide a regenerator for an absorption chiller/heater that has a smaller external size, a simpler structure, and improved heat collection efficiency. It is about providing.

[Means for solving problems]

In order to achieve the above object, the present invention provides a regenerator for an absorption chiller/heater, which has a can body 111 provided with a hollow part. An inlet and an outlet are provided, and the flame is directed downward into the hollow part,
The burner can be attached as shown in the figure.

[Effect]

According to the above-mentioned structure, the flame is emitted downward from the burner to heat the solution, and the exhaust gas passes through the bottom flue section and the outer layer section and exits from the chimney. This happens when the solution is heated through the can body surface on the outer layer side when being discharged.

〔Example〕

The present invention will be explained below based on the drawings.

FIG. 1 is a configuration diagram showing an embodiment of a regenerator for an absorption chiller/heater according to the present invention.

In FIG. 1, the regenerator 10 is surrounded by a can body 72t provided in a hollow part 70 and a wall body 74 so as to form a bottom flue 1h78 and an outer layer part 80, and a solution inlet part 64 and a solution inlet part 64 at the bottom of the can body 72. , a solution outlet section 66t is provided at the top thereof, a burner 127 is provided at the center of the hollow section 70 for emitting flame downward, and a chimney section 56 is provided at the top of the first outer layer section 80. The solution present in the can 72 is heated by the flame from the burner 12. The hollow part 70 serves as a combustion chamber 60), and the exhaust smoke generated here passes through the bottom flue part 78 and reaches the outer layer part 8.
The solution in the can body 72 is heated as it rises. At this time, the dilute solution enters through the solution inlet 64, is heated, becomes a concentrated solution, and exits through the solution outlet 66.
It looks like this.

The operation of the regenerator constructed as described above will now be described.

Within the combustion chamber 60, the burner 12 emits flame downward to completely heat the solution. On the other hand, the solution enters the solution inlet section provided at the bottom in the figure, is heated by the burner 12, and rises until it is discharged as a concentrated solution through the solution outlet section 60. Furthermore, the smoke generated in the combustion chamber 60 and the bottom flue section 78
It passes through seven points and enters the outer layer section 80. In the conventional regenerator, the outer layer portion 80 was not used as a heat transfer surface, but in this embodiment, this outer layer portion 80 is used as a heat transfer surface.

FIG. 2 is a structural diagram of a drinking water tank according to another embodiment of the present invention.

In this embodiment as well, the same members as in the previous embodiment are denoted by the same reference numerals, and the explanation thereof will be omitted.

This embodiment differs from the previous embodiment in that fins 82 are wrapped around the outer periphery of the can body 72 to increase the heat transfer area.

Other configurations remain unchanged.

Next, the operation of this embodiment will be explained.

If the fins 82t are wound around the outside of the can body 72, the heat transfer area of the regenerator can be particularly increased. Use this fin 82 to ignite the heat transfer area (if
Using a smoke pipe 62 as shown in FIG. Also, this fin 82
By changing the shape and height of It is also possible to create turbulence in the flue gas and improve its heat transfer performance by 7 times.

In each of the above embodiments, the can body 72 has a hollow cylindrical shape, but of course it is not limited to this shape and may have another shape, for example, a prismatic shape.

〔Effect of the invention〕

As explained above, according to the present invention, the following effects can be obtained.

(1) Since the inner and outer surfaces of the can can be used as heat transfer surfaces, the heat transfer area can be increased by seven people without increasing the size of the playback itself.

(2) Smoke pipe gold film can be removed (and heat transfer area is large).
Moreover, the playback process itself is simplified and assembly becomes easier.

(3) Since the flame is emitted downward from the burner, it enters from below and forms a counterflow with the next solution.
Den 111 FI, ability improves.

(4) A regenerator having the same heat transfer area t as the conventional regenerated heat can be manufactured easily and inexpensively, and is industrially useful.

[Brief explanation of drawings]

Fig. 1 shows the structure of a regenerator for an absorption chiller/heater according to an embodiment of the present invention, Fig. 2 is a block diagram of another embodiment of the regenerator of the invention, and Fig. 3 shows an absorption type water chiller/heater. The system diagram shown in FIGS. 4 and 5 is a configuration diagram showing a conventional regenerator. ] O... Regenerator, 12... Burner, 56... Chimney, 6 (1... Heat-burning chamber, 64... Solution inlet, 66...
...Solution outlet part, 80...Outer layer part.

Claims (1)

[Claims] (1) In a regenerator for an absorption chiller/heater, a bottom flue section and an external smoke section are formed and surrounded by a can body provided with a hollow section and a wall body, and a solution inlet and an outlet section are provided in the can body. A regenerator for an absorption chiller/heater, characterized in that a burner can be attached to the hollow part so that the flame is directed downward.