JPH074782A - Liquid sprayer of absorption type refrigerating machine - Google Patents

Abstract

PURPOSE:To spray liquid uniformly along the long side of a sprayer and improve the spray efficiency even when the long side of the sprayer is on the tilt because a refrigerating machine slides out of the horizontal installation position. CONSTITUTION:A wide chevron-shaped guide 2 is provided under a long box- type tray 1 where liquid to be sprayed is received, and has a block wall 3 consisting of long side weirs 31 that block long side open ends of a liquid receiving plate 21 and short side weirs 32 that block the short side open ends, so that liquid is stored on the liquid receiving plate 21. Therefore, even when the long sides of a spray device incline, the liquid level is prevented from falling below spray holes 22 located on the upper side of the slope and liquid trickles from almost all the spray holes 22 that line lengthwise in large numbers.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid spraying device for an absorption refrigerating machine for spraying a liquid onto the surface of an evaporator of an absorption refrigerating machine or a heat transfer tube of the absorber.

[0002]

2. Description of the Related Art A liquid spraying device of this type is designed to exchange heat between a liquid to be sprayed and a fluid flowing in a heat transfer tube.
In the evaporator, water used as a refrigerant is sprayed on the surface of the heat transfer tube through which cooling water flows, and in the absorber, an aqueous solution of lithium bromide used as an absorbing solution is sprayed on the surface of the heat transfer tube through which cooling water flows. Conventionally, this kind of spraying device is provided with an elongated gutter-shaped tray T for receiving a liquid to be sprayed, as disclosed in JP-A-2-298237 and shown in FIGS. A mountain-shaped liquid receiving portion A for receiving the liquid flowing out from a large number of outlets D opening at the bottom, a skirt portion S continuous to the receiving portion A, and a large number of drops surrounded by a rectangular spacer Z and an outer wall W. Mouth O
A guide member G having a and is provided so that the liquid is dispersed in the longitudinal direction of the heat transfer tube P in a dispersed manner.

[0003]

However, in the above description, the upper projecting end of the outer wall W provided on the guide body G blocks the liquid at the skirt on the long side of the liquid receiving portion A, so that each drop is dropped. Mouth O
Although it can perform the function of guiding the liquid to the liquid receiving part A, since the short side end of the liquid receiving part A having a chevron shape is open, the liquid cannot be stored on the liquid receiving part A in the end. For this reason,
If the long side of the spraying device is slightly inclined as shown by the imaginary line in FIG. 6 due to the displacement of the horizontal position of the refrigerator, the liquid flows out from the open end of the short side located below the inclination, The liquid surface on the upper side is cut off and the drip port O located on the upper side
There is a problem that the liquid cannot be dripped from the inside, and uniform spraying in the length direction cannot be performed.

The main object of the present invention is to provide an absorption type in which even if the long side of the spraying device is tilted due to the displacement of the horizontal installation position of the refrigerator, almost uniform dripping is possible along the long side and the spraying efficiency is improved. The point is to provide a liquid spraying device for a refrigerator.

[0005]

In order to achieve the above main purpose, the invention according to claim 1 is, as shown in FIGS. 1 and 2, an elongated tray 1 for receiving liquid to be sprayed.
And a guide body 2 for receiving the liquid flowing out from the outflow port 11 provided in the tray 1 and dropping the liquid from a plurality of drip openings 22 provided in the longitudinal direction, in the liquid spraying device of the absorption refrigerator, Body 2 and the guide body 2
Of the liquid receiving part 21 has a long side cuff 31 for blocking the long side open end and a short side cuff 32 for blocking the short side open end of the liquid receiving part 21. The blocking wall 3 is provided.

According to the second aspect of the present invention, even if the outflow port 11 of the tray 1 is clogged with dust, the liquid can be transferred from the tray 1 to the guide body 2 by overflow,
In order to achieve the above main purpose for a long period of time, in the invention according to claim 1, the short side of the tray 1 having a width narrower than the width of the short side of the guide body 2 is set within the width of the short side of the guide body 2. It is arranged.

Further, in the invention according to claim 3, in the invention according to claim 2, in order to reduce the clogging itself of the outflow port 11 of the tray 1 and to achieve the above main object for a longer period of time, the tray 1 is provided. On the side wall of the liquid outlet 11
Is opened.

Further, in the invention according to claim 4, in the invention according to claim 2 or claim 3, a sufficient amount of liquid that can be stored in the guide body 2 is ensured, and at the same time, from the outlet 11 of the tray 1 to the guide body 2. In order to reliably deliver the liquid and to achieve the main purpose more stably, the blocking wall 3 is made higher than the liquid outlet 11 provided in the tray 1.

The invention according to claim 5 is based on claim 1.
In each of the inventions described in (1) to (4), in order to effectively raise the liquid head that is blocked by the blocking wall 3 and improve the drainage of the dropped liquid, the guide body 2 can be used in order to achieve the above main purpose even better. , A chevron shape with the central part of the short side as the top,
The top part is fixed to the bottom part of the tray 1, and the drip port 22 is provided below the inclined liquid receiving part 21 along the hillside.
And a draining projection 23 extending downward is provided at the outer edge of the drip port 22.

[0010]

In the invention described in claim 1, as shown in FIG.
Even if the long side of the spraying device tilts due to the displacement of the horizontal installation position of the refrigerator, the short side open end of the liquid receiving portion 21 located below the tilt is blocked by the short side cough 32. ,
The liquid can be prevented from flowing out from the open end on the short side.
Then, the liquid can be stored inside the blocking wall 3 surrounded by the short side weir 32 and the long side weir 31, and the liquid surface is cut off at the drip port 22 located on the upper side of the inclination. The situation can be reduced, and the liquid can be dripped from most of the plurality of drip ports 22 provided in the length direction, and substantially uniform spraying can be performed in the length direction.

According to the second aspect of the present invention, even if the outflow port 11 of the tray 1 is clogged with dust, the liquid overflowing from the tray 1 having a narrow short side as shown by the double-dashed line arrow in FIG. It can be received by the guide body 2 having a wide short side, and liquid can be stored inside the blocking wall 3,
The above main purpose can be achieved for a long time.

According to the third aspect of the present invention, since the outlet 11 is opened on the side wall of the tray 1, the closing of the outlet (11) due to the settling dust can be reduced, and the main purpose can be further prolonged. Can be achieved over.

In the invention according to claim 4, since the height of the blocking wall 3 is higher than the outlet 11 of the tray 1, a sufficient amount of liquid that can be stored in the guide body 2 can be secured and the outlet 11 of the tray 1 can be secured. The liquid can be reliably transferred from the guide body 2 to the guide body 2, and the main purpose can be achieved more stably.

In the invention according to claim 5, the drip port 22 is
Since the liquid head is opened below the inclined liquid receiving portion 21, the liquid head above the drip port 22 can be effectively heightened, and the liquid to be dripped by the draining projections 23 is guided by the guide body 2. It is possible to smoothly drip downward without wrapping around and adhering to the back surface side of the liquid receiving portion 21 in the above, and it is possible to achieve the above main purpose more satisfactorily.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 3 shows an absorption refrigerator having an evaporator 5 and an absorber 6 provided with a liquid spraying device 100 according to the present invention. In the evaporator 5, a cold water pipe 41 for taking out cooling water is provided inside the container 50, and the liquid spraying device 1
Water used as a refrigerant is sprayed from 00. In the absorber 6, a cooling water pipe 42 for flowing cooling water is provided adjacently in the same container 50 as the evaporator 5 with an eliminator 60 sandwiched therebetween, and a lithium bromide aqueous solution used as an absorbing solution from the liquid spraying device 100. The solution is concentrated.

In FIG. 3, reference numeral 51 is a refrigerant pump, 61 is a solution pump, 62 is a low temperature heat exchanger, 63 is a high temperature heat exchanger, and 7 is a burner 70 as a heat source. A high temperature generator for generating a refrigerant from a solution, 8 has a heat transfer tube group 80 for flowing a refrigerant vapor generated in the high temperature generator 7, and has an intermediate concentration after being generated in the high temperature generator 7 and passing through a high temperature heat exchanger 63. A low-temperature generator for generating a refrigerant from the solution, 9 is a condenser for condensing the refrigerant vapor generated in the low-temperature generator 8 by a cooling water pipe 90 continuously provided after the cooling water pipe 42 of the absorber 6, and 91 is replaced with cooling. This is a cooling / heating switching valve that heats up by heating.

As shown in FIGS. 1 and 2, the liquid spraying device 100 used for the evaporator 5 and the absorber 6 is symmetrically formed with the center of the short side as a boundary, and the bottom wall 1a and the long side. Side wall 1
The tray 1 is provided with a long box-shaped tray 1 having b and a short side wall 1c and receiving the liquid to be sprayed.
A liquid receiving portion 2 for receiving the liquid flowing out from the outflow port 11 which is opened in the lower part of the long side wall 1b in the longitudinal direction.
1 and a guide body 2 having a large number of liquid dropping ports 22 provided in the length direction.

The guide body 2 is attached to the guide body 2.
And a short side cave 32 for blocking the long side open end of the liquid receiving section 21 and a short side cough 32 for blocking the short side open end of the liquid receiving section 21. A stop wall 3 is provided. As shown in FIG. 2, a support arm 33 of the spraying device is continuously provided above the short side cuff 32. Thus, as shown in FIG. 4, even if the long side of the spraying device tilts due to the displacement of the horizontal installation position of the refrigerator, the blocking wall 3 causes the liquid level to break at the drip port 22 located above the tilt. The situation can be reduced, and the liquid can be dripped from most of the dropping ports 22 provided in the length direction.

Further, with the above construction, the short side of the tray 1 having a width narrower than the width of the short side of the guide body 2 is arranged within the width of the short side of the guide body 2, and the tray 1 flows. The outlet 11 is open to the long side wall 1b of the tray 1, and the blocking wall 3 is higher than the liquid outlet 11 provided in the tray 1. Therefore, it is possible to reduce clogging of the outflow port 11 of the tray 1 itself with dust, and even if clogging with dust occurs, it overflows from the tray 1 having a narrow short side as shown by the double-dashed line arrow in FIG. The liquid can be received by the guide body 2 having a short side and a wide width, and a sufficient amount of liquid that can be stored in the guide body 2 can be secured, and the tray 1
It is also possible to reliably transfer the liquid from the outflow port 11 to the guide body 2.

Further, with the above structure, the guide body 2 has a mountain-like shape with the central part of the short side as the apex.
a is fixed to the bottom wall 1a of the tray 1, a drip port 22 is opened below the inclined liquid receiving part 21 along the hillside, and the drip port 22 is provided at the outer edge of the drip port 22 downward. An extending draining protrusion 23 is provided. This draining protrusion 23 is
The trapezoidal tooth body 23a is provided integrally with the lower end of a long rectangular plate 24 attached to the inner surface of the long side cuff 31 and has a trapezoidal toothed body 23a in which the lower tip end side that extends downward through the drip port 22 is narrowed.
Further, the draining projections 23 composed of the tooth bodies 23a are provided in a total of several tens to several hundreds (for example, 160) on the left and right sides.
As a result, each of the dripping ports 22 has an inclined liquid receiving portion 21.
Since the liquid head above the drip port 22 can be effectively heightened, the liquid to be dripped by the draining projections 23 is provided on the back surface of the liquid receiving portion 21 of the guide body 2. It is possible to smoothly drip downward without wrapping around and sticking to the side.

In the above embodiment, the liquid receiving portion 21 has a chevron shape, but may have a flat shape, and the short side of the guide body 2 is wider than the tray 1, but the same degree. The width may be set so that the liquid outlet 11 is opened in the bottom wall 1a of the tray 1.

[0022]

As described above, according to the first aspect of the present invention, even if the long side of the spraying device is tilted due to the displacement of the horizontal installation position of the refrigerator, the liquid receiving portion 21 located below the tilt is short. The side-side open end is blocked by the short-side cough 32, and the liquid is collected on the liquid receiving portion 21 by the blocking wall 3 surrounded by the short-side cuff 32 and the long-side cuff 31. As a result, it is possible to reduce the situation where the liquid surface is cut off at the drip port 22 located on the upper side of the inclination, and the liquid can be dripped from most of the drip ports 22 provided in the longitudinal direction. The spraying can be performed substantially uniformly in the direction, and the spraying efficiency can be improved.

According to the second aspect of the present invention, even if the outlet 11 of the tray 1 is clogged with dust, the liquid overflowing from the tray 1 having a narrow short side is received by the guide body 2 having a wide short side. Therefore, the liquid can be stored inside the blocking wall 3, and uniform spraying can be achieved for a long period of time.

According to the third aspect of the present invention, clogging of the outflow port 11 of the tray 1 with dust can be reduced, and uniform spraying can be achieved for a longer period of time.

According to the invention described in claim 4, since the blocking wall 3 is high, a sufficient amount of liquid that can be stored in the guide body 2 can be secured,
The liquid can be reliably transferred from the outflow port 11 of the tray 1 to the guide body 2, and uniform spraying can be achieved more stably.

According to the invention of claim 5, the drip port 22
The liquid head on the upper side can be effectively heightened, and the water can be smoothly dripped downward by the draining projections 23, so that uniform spraying can be achieved more favorably.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a short side of a liquid spraying device for an absorption refrigerator according to the present invention.

FIG. 2 is a side view of a long side of the liquid spraying device.

FIG. 3 is a piping diagram of an absorption refrigerator having the liquid spraying device.

FIG. 4 is an explanatory diagram illustrating an operation of the liquid spraying device.

FIG. 5 is a short side sectional view of a conventional liquid spraying device.

FIG. 6 is a side view of a long side of a conventional liquid spraying device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1; Tray, 11; Outflow port, 2; Guide body, 21; Liquid receiving part, 22; Drop opening, 23; Drain projection, 3; Blocking wall,
31: Long-side weir, 32: Short-side weir

Claims (5)

[Claims] 1. A long tray (1) for receiving a liquid to be sprayed, and a drip port (22) provided with a large number in the lengthwise direction for receiving the liquid flowing out from an outlet (11) provided in the tray (1). In the liquid spraying device of the absorption refrigerator, the guide body (2) is provided with a guide body (2) for dropping the liquid from the above), and the long side of the liquid receiving portion (21) of the guide body (2) is opened. Long side cuffs (3
1) and an absorption wall (3) having a short side cave (32) for closing the short side open end of the liquid receiving part (21). Liquid spraying device for refrigerator. 2. A tray (1) having a width narrower than the width of the short side of the guide body (2) within the width of the short side of the guide body (2).
The liquid sprinkling device for an absorption refrigerator according to claim 1, wherein the short side of the device is arranged. 3. A liquid outlet (1) on the side wall of the tray (1).
The liquid spraying device for an absorption refrigerator according to claim 2, wherein 1) is opened. 4. A liquid spraying device for an absorption refrigerator according to claim 2, wherein the blocking wall (3) is higher than the liquid outlet (11) provided in the tray (1). 5. The guide body (2) has a chevron shape with the central part of the short side as the apex, the apex of which is fixed to the bottom of the tray (1), and the inclined liquid along the flank thereof. The drip opening (22) is opened below the receiving portion (21), and a draining projection (23) extending downward is provided at the outer edge of the drip opening (22). Item 4. A liquid spraying device for an absorption refrigerator according to any one of items 4.