JPH0419418Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to an ice making machine that makes ice by circulating ice making water supplied to a water storage tank in each ice making cycle to a cooler using a circulation pump. This relates to a drainage device installed in a tank.

(b) Prior art As a prior art, for example, Japanese Utility Model Publication No. 11270/1983 discloses that an overflow pipe is provided penetrating the bottom wall of a water storage tank, and a cover pipe is provided on the overflow pipe approximately concentrically with respect to the overflow pipe. Cover it with
The opening at the lower end of the pipe has an appropriate distance from the bottom of the water tank, and the upper end is closed to provide a small opening, or the upper end is open and the open end protrudes above the water surface to remove impurities contained in the liquid. Disclosed.

(c) Problems that the invention aims to solve The above conventional technology has a basic structure of a first-in, first-out system, but when water falls from the top of the water tank, the water is stirred and the amount of clean water discharged along with impurities increases, making it less efficient. Therefore, it was not possible to drain the impurities.

(d) Means for Solving the Problems The present invention provides an ice making machine that makes ice by circulating ice making water supplied to a water storage tank in each ice making cycle to a cooler using a circulation pump. an overflow pipe that stands upright nearby, penetrates the bottom of the tank, and has a lower end opening communicating with the drain pipe;
An outer pipe is installed around the overflow pipe with a space therebetween, and has an upper end located above the upper end opening of the overflow pipe and a lower end opened into the water storage tank, and an outer pipe located below the upper end opening of the overflow pipe. By providing at the bottom of the water storage tank an intermediate partition plate which partitions the water storage tank in the vertical direction and has an inlet opening communicating with the lower end opening of the outer pipe on the other side wall of the water storage tank away from the overflow pipe. This is an ice maker drainage device that solves a technical problem.

(e) Effect The present invention provides a state in which when new water is supplied to the water storage tank 11, the remaining water in the water storage tank 11 is sealed below the inner partition plate 17 and further inside the outer pipe 16. When the water level rises and exceeds the upper end opening 15A of the overflow pipe 15, the residual water containing impurities is drained first.

(f) Examples Examples of the present invention will be described below based on the drawings. Fig. 1 is an internal configuration diagram of an ice making machine equipped with the device of the present invention, Fig. 2 is a sectional view of the drainage device of the present invention provided in a water storage tank, and Fig. 3 is a top view of the same. A cooler disposed at the top of the machine body 2, which includes a pair of cooling plates 3 arranged substantially vertically with a gap between them, and a number of circular ice-making buttons 4 exposed substantially flush with the surface of the cooling plates 3. and an evaporation pipe 5 held between the ice making button 4. Reference numeral 6 denotes a water supply and ice-releasing water sprinkler that flows tap water supplied from a water supply pipe 8 connected to a water supply solenoid valve 7 to the upper back surface of the cooling plate 3, and 9 a water sprinkler for ice making that flows water to the upper surface of the cooling plate 3. The water sprinkler is connected to a circulation pump 12 disposed in a water storage tank 11 via a water conduit 10. Reference numeral 13 denotes a water receiving gutter which collects the tap water sprinkled from the water supply/ice removal water sprinkler 6 and the unfrozen water sprinkled from the ice making water sprinkler 9 and which does not freeze in the cooler 1 and guides it to the water storage tank 11, which stores water. It is integrally molded with the tank 11. 14 is an ice storage compartment formed in the lower part of the ice maker main body 2.

Next, details of the drainage device of the present invention will be explained. The drainage device includes an overflow pipe 15 that stands upright near one side wall of the water storage tank 11, an outer pipe 16 that stands around the overflow pipe 15 with a gap, and a water storage device that is fixed to the lower part of the outer pipe 16. The overflow pipe 15 penetrates the bottom surface of the water storage tank 11 and its lower end opening is connected to the ice storage 14. It is connected to the drain pipe 19 located near the side wall, and the upper end opening 16A of the outer pipe 16 is connected to the upper end opening 1 of the overflow pipe 15.
The lower end opening 16B of the outer pipe 16, which is located above 5A and opens into the water storage tank 11, communicates with an inlet 20 that is not blocked by the partition plate 17 on the other side wall of the water storage tank 11 away from the overflow pipe 15. do. Furthermore, the partition plate 17 is connected to the water storage tank 1.
It is removably placed on a stepped portion 11A formed on the inner periphery of 1.

Based on the above configuration, the operation of the present invention will be explained below. First, the ice-making water supplied to the water storage tank 11 is pumped to the ice-making water sprinkler 9 by the circulation pump 12, and when the water flows from the water sprinkler 9 onto the surface of the cooling plate 3, the ice-making water gradually flows onto the surface of the ice-making button 4. After the unfrozen water freezes and falls into the water receiving gutter 13, it is returned to the water storage tank 11 and circulated again to the water sprinkler 9.

When a predetermined lenticular ice 21 grows on the ice making button 4 through such ice making operation, the circulation pump 12
Then, the cooling operation is stopped and the ice-making operation is completed, and the water supply electromagnetic valve 7 is opened and tap water is force-fed through the water supply pipe 8 to the water supply and ice-removal water sprinkler 6, and from the water sprinkler 6 to the cooling plate 3. The temperature of the cooler 1 is raised by the heat sensitivity of the water, and the ice 21 is released from the ice making button 4.
make them leave. This ice 21 falls into the ice storage 14 and is stored therein. On the other hand, the water flowing down the back surface of the cooling plate 3 for ice removal falls from the lower end opening of the cooler 1 into the water receiving gutter 13, and is supplied to the water storage tank 11 for ice making in the next cycle.

At this time, ice-making water from the previous cycle remains in the water storage tank 11, and this residual water is caused by the water newly flowing into the water storage tank 11 to cause the inner partition plate 17 to open as shown by the dotted line arrow in FIG. It is sealed downward and further into the outer tube 16. When the water level exceeds the upper end opening 15A of the overflow pipe 15, the residual water first flows into the overflow pipe 15 and is drained out of the ice making machine through the drain pipe 19.

Note that, as the water supply method, a direct water supply method may be adopted instead of the indirect water supply method as in the embodiment.

(g) Effect of the invention As described above, this invention has a structure of an outer pipe installed around the overflow pipe and a middle partition plate that partitions the water storage tank in the vertical direction, so that when new water is supplied to the water storage tank, , the water level rises while the residual water in the water storage tank is sealed below the inner partition plate and further inside the outer tube, so that the residual water containing impurities is removed first without allowing residual water to remain. Water can be drained and replaced with new water efficiently.

[Brief explanation of drawings]

FIG. 1 is an internal configuration diagram of an ice making machine equipped with a drainage device of the present invention, FIG. 2 is a sectional view of the drainage device of the present invention provided in a water storage tank, and FIG. 3 is a top view of the same. 11...Water tank, 15...Overflow pipe, 15A...Top opening, 16...Outer pipe, 16B
... lower end opening, 17 ... middle partition plate, 19 ... drain pipe, 20 ... inlet.

Claims (1)

[Scope of utility model registration request] In an ice-making machine that circulates ice-making water supplied to a water storage tank in each ice-making cycle to a cooler using a circulation pump, the ice-making machine has an ice-making machine that stands upright near one side wall of the water storage tank and penetrates the bottom of the tank to open at a lower end. an overflow pipe that is connected to a drain pipe; and an outer pipe that is erected at a distance around the overflow pipe and whose upper end is located above the upper end opening of the overflow pipe and whose lower end opens into the water storage tank. ,
The water storage tank is vertically partitioned below the upper end opening of the overflow pipe, and the partition plate is provided with an inlet communicating with the lower end opening of the outer pipe on the other side wall of the water storage tank away from the overflow pipe. A drainage device for an ice maker characterized by being installed at the bottom of a water storage tank.