JPS5936179B2 - Continuous cooling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is capable of defrosting while cooling in a cooling device including a plurality of coolers (cooling coils).

In addition, the cooler requires a smaller capacity than conventional ones,
The present invention relates to a cooling device that enables effective cooling.

Equipped with multiple coolers, one for cooling.

During this time, conventional cooling systems perform defrosting using other power.

Each cooler is large and has a large capacity to meet the maximum cooling load, making the valley cooler expensive to manufacture.

The present invention defrosts the coolers one by one in a cooling device equipped with a plurality of coolers.

The other coolers should be able to perform cooling operation, so the valley cooler can have a capacity equal to the maximum load divided by the number of coolers in cooling operation, and add one cooler with the same capacity.
The present invention will be described below in detail with reference to embodiment drawings regarding a cooling device that only needs to be powered by a stand.

FIG. 1 is a diagram showing a cooling system equipped with the apparatus of the present invention, where 1 is a cooler, 2 is a compressor, and 3 is a condenser.

4 is a reheater, 5 is a blower, and 6 is an air-conditioned room.

Humid air returned to the cooler 1 from the air-conditioned room 6 via the return air path 7 is dehumidified in the cooler 1, heated in the reheater 4 provided in the supply air path 8, and then sent to the air blower 5t. It is supplied to the air conditioned room 6.

On the other hand, the refrigerant liquid in the condenser 3 is introduced into the cooling coil of the cooler 1 via the refrigerant liquid pipe 9, vaporized by heat exchange with humid air, and returned to the compressor 2 via the refrigerant gas pipe 10. The cooler 1 is supplied with defrosting fluid.

As a defrost device. For example, a water sprinkling device 12 for sprinkling water from a water supply pipe 11 onto the cooling coil is provided.

The cooler 1 is constructed as shown in FIGS. 2 and 3.

That is, the cooler main body 1a connects a return air path (duct) 7 for humid air and a supply air path (duct) 8 for dehumidified air.
Inside, there is an air path a with upper and lower openings defined by the partition plate 15.
, b, c, and d are installed in parallel.

In addition, there is a common air distribution channel 1 for each air channel above and below the air channel.
Form 7.18.

In this example. The upper air passage 1γ communicates with the supply circuit 8, and the lower air passage 18 communicates with the return air passage 7.

Each air path a = d has a cooling coil 1 with the same capacity.
4 is accommodated at one end of each cooling coil 14.
Refrigerant liquid branch pipes 20 branched from the hot refrigerant liquid pipe 9 are connected, and each branch pipe 20 is provided with a solenoid valve 2 and an expansion valve 22, respectively.

Further, the other end of each cooling coil 14 is connected to the refrigerant gas pipe 10.

A water sprinkling device 12 for sprinkling water on the cooling coil 14 is provided above each air path defined by the partition plate 15, and a branch water supply pipe 23 branched from the water supply pipe 11 and the pipe 2
Water is supplied to the water sprinkler device through a solenoid valve 24 provided at the cooling coil 14, thereby making it possible to spray water on the cooling coil 14 for defrosting.

Refrigerant liquid piping9. The refrigerant gas pipe 10 and the water supply pipe 11 are connected to a space 2 provided on the side of the main body 1a as shown in FIG.
5.

however. In order to facilitate understanding, FIG. 2 shows these connection relationships in a way that makes them easy to understand.

26 is a movable concealing body that conceals one of the air channels defined by the partition plate 15;

The upper plate part 26a for upper surface concealment, the lower plate part 26b for lower surface concealment and water receiver, and the connecting part 26C that connects these at the - side part.
The lower plate portion 26b is approximately U-shaped.
A roller 28 that rolls along the rail 21 is attached to the partition plate, and a roller 28 that slides the upper plate portion 26a is attached to the upper surface of the partition plate.
9 is installed.

Note that a flexible tube 34 for drainage is connected to the lower plate portion 26b.

Reference numeral 29 has a motor for driving the concealing body 1 installed at one end inside the main body 1a.

A drive device, and sprockets 30 and 0 of the 7 drive devices.
A chain 32 connected to the lower plate of the concealing body 26 is hung between it and a sprocket 31 installed at the other end of the main body, and the concealing body 26 is moved along the rail 27 by intermittent driving of the drive device 29. However, one of the passages defined by the partition plate 15 is successively hidden.

In this cooler, one of the air paths a" d is blocked by the concealing body 26, and the solenoid valve 24 of the branch water supply pipe 23 corresponding to the concealed air path is opened 1.
On the other hand, the solenoid valve 21 of the corresponding branch refrigerant liquid pipe 20 is closed to stop the supply of refrigerant and perform defrosting.

For other air paths, the corresponding solenoid valves 24 are closed.

The solenoid valve 21 is opened to perform cooling and dehumidification.

In the example shown in FIG. 2, defrosting is performed on the cooler in one of the four air passages a''d, while dehumidification is being performed on the coolers in the other air passages.

FIG. 4 shows another embodiment of the present invention, and in this embodiment, heat exchange is performed between humid air from the air-conditioned room 6 via the return air path 7 and dry air from the cooler 1. vessel 35
was installed to recover heat.

As described above, in the present invention, a plurality of air channels with upper and lower openings defined by partition plates are arranged in parallel in the cooler main body, and the air to be treated common to each air channel is provided above and below the air channels. A defrosting device to which defrosting fluid is supplied through individual electromagnetic valves 2 and expansion valves is provided in each air path that forms a circulation air path and is defined by a partition plate, and 1 drive device. Since a concealing body is provided that is moved in the direction in which the air channels are arranged side by side and sequentially hides a plurality of air channels one by one, the air to be treated can be introduced.

Only one outlet air path is required, and the installation space can be reduced.

In addition, each cooler should have a capacity of ■4, which is the maximum load Q divided by the number n of coolers in cooling operation, and one unit for dehumidification was added (nl-1). ), which has the practical advantage of reducing and rationalizing equipment manufacturing costs.

[Brief explanation of drawings]

Fig. 1 is a system diagram showing an example of dehumidification equipment equipped with the device of the present invention, Fig. 2 is a block diagram showing an embodiment of the cooling device of the present invention, and Fig. 3 is a sectional view of the cooler of the embodiment. , FIG. 4 is a system diagram showing another embodiment equipped with the apparatus of the present invention. In the figure, 1... cooler, 1a... main body,
2...Compressor, 3...Condenser, 12.
...Water sprinkler, 14...Cooling coil, 1
5... Partition plate, 17, 18... Treated air distribution channel, 21.24... Solenoid valve. 22... Expansion valve, 26... Concealing body,
29... Drive device, 32... Chain, a"d... Air path.

Claims (1)

[Scope of Claims] 1. A plurality of air channels with upper and lower openings partitioned by partition plates are arranged in parallel in the cooler main body, and a common treated air circulation channel is formed above and below the air channels. . A defrosting device in which refrigerant liquid is supplied through a number of solenoid valves and expansion valves into the valley air passages divided by partition plates, and defrosting fluid is supplied through cooling coils and individual solenoid valves. 1. A continuous cooling device characterized in that a concealing body is provided in the air path, and is moved by a drive device to sequentially hide the cooling coils one by one, and further blocks the air path.