JPS61225559A - Heat exchanger - 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 Field of Industrial Application The present invention relates to a heat exchange device employed in absorption heat pumps, absorption refrigerators, and the like.

2. Description of the Related Art A conventional absorption refrigerator, for example, as shown in FIG. It is composed of five heat exchangers, and includes internal fluid piping (65) for flowing internal fluid across these heat exchangers, cold water piping (66), heat source water piping (67), and cooling water piping ( 68)
etc. are established.

Problems to be Solved by the Invention According to the conventional configuration as described above, these assemblers,
That is, there is a lot of work involved in relative installation, piping, heat insulation, etc., which increases costs and also causes troubles such as leaks.

Means for Solving the Problems In order to solve the above problems, the heat exchange device according to the present invention includes:
An external fluid partition is provided with an internal fluid partition plate that divides an evaporator partition, an absorber partition, a regenerator partition, and a condenser partition, and forms an external fluid path corresponding to each partition. A plate and a heat transfer plate are provided, and after the internal fluid partition plate and the external fluid partition plate are stacked alternately with the heat transfer plate inside, outer plates are placed on both sides to integrate them. .

According to the configuration of the present invention, a plurality of heat exchanger parts can be integrated by stacking plates.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 6.

(1) is the outer plate, (2) is the internal fluid partition plate, (3) is the external fluid partition plate, and (4) is the heat transfer plate, which have different thicknesses but the same external shape. .

The outer plate (1) is a rectangular flat plate without any processing such as perforations.

The internal fluid partition plate (2) includes, sequentially from the bottom to the top,
An evaporator section (5), an absorber section (6), a heat recovery device section (7), a regenerator section (8), and a condenser section (9) are divided and formed. There is. - A vertical partition QO is provided at the side end, and the internal fluid, which is refrigerant water (
b) from the condenser compartment (9) to the evaporator compartment (5)
A flow path (2) is formed to allow natural flow. A refrigerant vapor flow path α→ is formed in the first horizontal partition located between the evaporator compartment (5) and the absorber compartment (6), and the absorber compartment (6) has a refrigerant vapor flow path α→. The lower end and the lower end of the heat recovery section (7) communicate with each other through a circulation passage Q having a circulation pump. An eighth horizontal partition (to) is disposed below the second horizontal partition Q located between the absorber compartment (6) and the heat recovery compartment (7), and both horizontal partitions (RO) are arranged below the second horizontal partition Q. ) (Incorporated) A passage Q'J is formed between them, and the passage Qe is communicated with the absorber compartment (6) through a large number of through holes formed in the third horizontal partition (G). The heat recovery device section ( 7) is formed in a serpentine shape, and a circulation passage for dropping the concentrated liquid is formed on the side of the regenerator compartment (8). And the regenerator compartment (
A refrigerant vapor flow path 4 is formed in the sixth horizontal partition located between the condenser section 8) and the condenser compartment (9).

The external fluid partition plate (3) has respective partition parts (5) (6).
(7) (8) An external fluid path corresponding to (9) is formed. That is, a cold water passage part (to) is formed corresponding to the evaporator partition part (5), and a water supply nozzle (b) and a drainage nozzle (to) that communicate with this cold water passage part (7) are provided. A lower cooling water passage part (2) is formed corresponding to the absorber partition part (6), and a water supply nozzle (2) is formed in this lower cooling water passage part. A concentrated liquid holding part (b) is formed corresponding to the heat recovery device partition part (7). Furthermore, a concentrated liquid holding part (b) is formed corresponding to the regenerator partition part (8). A heat source water flow path section (2) is formed, and a water supply nozzle (to) and a drainage nozzle (a) communicating with this heat source water flow path section (2) are provided to flow the heat source water (b). Condenser compartment (
An upper cooling water passage section is formed corresponding to (9), and a drain nozzle curve is communicated with this upper cooling water passage section (6), and a passage (b) is connected to the lower cooling water passage (to). It's communicating.

A lower refrigerant vapor retaining portion is formed between the cold water flow path portion and the side portion of the lower cooling water flow path portion, and a lower refrigerant vapor retaining portion is formed between the heat source water flow path portion and the upper cooling water flow path portion. In between, an upper refrigerant vapor retaining section) is formed. And (54) is a vacuum pump (not shown) provided to maintain the vacuum of the condenser compartment (9) formed in the internal fluid compartment plate (3).
It is a passageway to connect to.

The heat exchanger plate (4) communicates the lower hole which communicates the refrigerant vapor flow path C14 with the lower refrigerant vapor retainer and the upper refrigerant vapor retainer. An introduction hole (52) that communicates between the upper hole (51), the circulation path) and the concentrated liquid retaining part (b), and an outlet hole (53) that communicates the concentrated liquid retaining part (b) with the passage α. and a passageway (55) communicating with the vacuum pump. An internal fluid partition plate (2) and an external fluid partition plate (3) with the heat transfer plate (4) inside.
are alternately stacked on top of each other, and with outer plates (1) disposed on both sides, adjacent plates are welded together by brazing or the like to integrate them.

According to the above embodiment, the internal fluid C11 is refrigerant water condensed in the condenser compartment (9) of the internal fluid compartment plate (2).
) enters the evaporator compartment (5) through the channel (2). Here, heat is exchanged with the cold water flowing through the cold water flow path section (7) via the heat transfer plate (4), and the resulting refrigerant vapor passes through the refrigerant vapor flow path α4 into the absorber section. It flows into part (6). The cold water cools down and leaves.

Note that a wide space is required to perform gas-liquid separation in the evaporator compartment (5), and a lower refrigerant vapor retaining section communicating through the lower hole is utilized for this purpose. The refrigerant vapor in the absorber compartment (6) is absorbed by the internal fluid, which is a concentrated absorption liquid, which is discharged from the through hole (■) into the absorber compartment (6), and the heat generated during this absorption is transferred to the lower cooling water stream. Road section (
Heat is exchanged with the cooling water (4) flowing through the heat exchanger plate (4). On the other hand, the internal fluid (b), which is a diluted absorption liquid that absorbs refrigerant air, is sent to the heat recovery device compartment (7) through the circulation passage QQ by the operation of the circulation pump (to), and Moving on to the regenerator compartment (8), the internal fluid (b) of the regenerator compartment (8) exchanges heat with the heat source water flowing through the heat source water flow path (to) via the heat transfer plate (4). The resulting refrigerant vapor flows through the refrigerant vapor flow path 4 into the condenser compartment (9).The space for gas-liquid separation at this time is communicated via the upper hole (51). The upper refrigerant vapor retention section is used. Condenser section (9)
The refrigerant vapor inside is heat exchanged with the cooling water flowing from the lower cooling water flow path section (B) through the passageway through the upper cooling water flow section through the heat transfer plate (4), and is liquefied again. As mentioned above, it flows through the channel (goods). Regenerator compartment (8
) A part of the internal fluid (b), which is the concentrated absorption liquid, is
It flows into the concentrated liquid retention part (2) through the circulation path (E) and the introduction hole (52), and the internal fluid (B), which is the dilute absorption liquid in the heat recovery section, and the heat exchanger plate (4). heat is exchanged through the

Then, it flows from the outlet hole (58) to the passage Ql, and the through hole (1
) to the absorber compartment (6).

Note that both channels α4 (2) and passages (2) are connected to the heat exchanger plate (4).
) may be partitioned by pressing into concavo-convex shapes.

Effects of the Invention According to the present invention having the above configuration, a plurality of heat exchanger parts can be integrated by stacking plates, and therefore operations such as relative installation, piping, and heat insulation are not required in production, and the product can be provided at low cost. , it is possible to provide a highly reliable device with fewer troubles.

[Brief explanation of the drawing]

Figures 1 to 6 show one embodiment of the present invention, with Figure 1 being a front view in an integrated state, Figure 2 being a longitudinal side view of the internal fluid partition plate, and Figure 8 being the external fluid partition plate. Fig. 4 is a side view of the heat exchanger plate, and Fig. 5 is a longitudinal side view of the split plate, and Fig. 5 is a side view of the heat transfer plate in the integrated state.
6 is a sectional view taken along line AA in the figure, FIG. 6 is a sectional view taken along line BB, and FIG. 7 is a flowchart showing a conventional example.

Claims (1)

[Claims] 1. An internal fluid partition plate is provided which divides an evaporator section, an absorber section, a regenerator section, and a condenser section, and an external fluid corresponding to each section. An external fluid partition plate and a heat transfer plate are provided, and the internal fluid partition plate and the external fluid partition plate are stacked alternately with the heat transfer plate inside, and then outer plates are placed on both sides. A heat exchange device characterized by being arranged and integrated. 2. A refrigerant vapor flow path that communicates the evaporator section and the absorber section, a refrigerant vapor flow path that communicates the regenerator section and the condenser section, and the condenser section and the evaporator section. 2. The heat exchange device according to claim 1, wherein the internal fluid partition plate is divided into a flow path that communicates with the flow path. 8. A refrigerant vapor flow path that communicates between the evaporator section and the absorber section, a refrigerant vapor flow path that communicates between the regenerator section and the condenser section, and the condenser section and the evaporator section. 2. The heat exchange device according to claim 1, wherein the heat exchanger plate has a concave and convex shape formed on the heat exchanger plate to form a flow path that communicates with the flow path.