KR20100016859A - Water level control device - Google Patents

Abstract

PURPOSE: A water level control device is provided to maintain a constant water level in a freezer chamber for an ice making device, thereby obtaining ice of good shape. CONSTITUTION: A water level control device comprises an upper body(110), a lower body(120), a diaphragm valve, and an opening/closing member. The front end of the opening/closing member is connected to a lifting shaft of the diaphragm valve via a first axial pin and to an opening/closing cap for opening or closing an inlet via a second axial pin. Therefore, the inlet is opened and closed at the same time as the lifting shaft ascends and descends.

Description

Water level control device

The present invention relates to a water level control device.

This is applied to an ice maker or a water purifier, etc., and it is used to freeze or cool (cold water) water in a cylinder wound by a freezing evaporation tube to make ice or to cool water discharged. It relates to a control device.

Generally, ice makers and water purifiers are equipped with chambers in which refrigeration or cooling systems operate.

1 is an overall configuration diagram of a water supply, ice making, and freezing cycle of a conventional auger ice maker.

In the conventional ice making system according to the drawings, a water supply valve controlled by a water level control circuit and a water supply tank are installed on the water supply pipe side, and on the ice making device side, a cylinder which forms a space in which the outer surface is wound by a freezing evaporation tube and the inside is filled with water. To form a cylinder, the screw inside the spiral blade is installed vertically, the ice chamber is located on the top. The evaporator (pipe) is connected to circulate back to the refrigerant line, and a compressor, a condenser, a fan motor, and an expansion valve are installed at appropriate positions.

The inside of the cylinder of the ice making system detects a predetermined amount of water and automatically shuts off the water supply. Since the water level of the cylinder and the water supply tank must be maintained at the same height, a tank or a large receiving space is essential for a water purifier or an ice maker. Level control tanks were to be provided. The reason why such a water tank is required is that the ice making system operates normally only when the maximum height of the space of the chamber is reached to produce high quality ice.

Therefore, the reason for maintaining the water level in the conventional ice-making cylinder which forms the principle of this ice-making principle is that if ice-making is performed in some empty spaces when the refrigeration and cooling cycles are started when the water is not sufficiently filled, it is caused by the subcooling of the partially frozen ice. A device that leads to mechanical failure due to constrained screw rotation in the cylinder, leading to mechanical accidents, while destroying the refrigerating system by the "liquid back" phenomenon where refrigerant is not consumed by cold energy as a sufficient amount of ice into the compressor. There was a problem that must be avoided to cause a fatal accident.

In the meantime, there has been a problem in the design of the ice making device in which the water supply tank has to be designed so that the water level of the water supply tank and the ice making cylinder are located on the same line, and whether the ice making and cooling ability is designed due to the essential equipment of the water level control water supply system. As a result, it is difficult to manufacture a compact ice maker in the end, and there was a design limitation in that the water tank arrangement position should be set to match the level of the cylinder in the ice maker.

Therefore, in order to simplify and reduce the structure of such an ice making device (water purifier), it is required to provide an ice making and cooling cycle without a water supply solenoid valve, a water supply tank, an overflow pipe, and a water level control circuit system.

In view of this, the present invention simply replaces the "water level control device" composed of a water solenoid valve, a water supply tank, an overflow pipe, a water detection sensor, and the like controlled by the water level control circuit and the water level control circuit. To provide a "water level control means" that can maintain the water level of the water filled in the freezing chamber, such as ice makers.

The present invention is a system in which the opening and closing means is operated only by the "water level" formed equivalently by the "water extraction pressure" passed irrespective of the pressure or flow rate of the supplied water, that is, the water discharged through the opening and closing means The diaphragm valve stops the inflow of feed water by the diaphragm at the moment when it rises to the maximum level, which is the target level of the ice making cylinder. The purpose of the present invention is to provide a water level control device in which the opening and closing means is opened again and the water is introduced through the inlet.

The present invention also aims to simplify the structure of a complex water level regulator.

It is another object of the present invention to provide a water level control device further comprising a check valve for blocking an excessive supply of supply water.

The water purification apparatus according to the present invention for achieving the above object,

The upper body and the lower body, the diaphragm is formed therein, and the hinge shaft is formed eccentrically on the inlet side, the water level control device in which the supply water is blocked when reaching the target water level, the opening and closing member The front end of the diaphragm is connected to the hinge from the central axis of the diaphragm and the other side is also connected to the hinge axis has a feature of opening and closing the inlet opening of the hinge shaft is coupled with the iso-so at the same time.

The water purification apparatus according to the present invention for achieving the above object,

A circular pillar is formed at the center of the upper surface portion of the plate shape, and the inside of the pillar is hollow and has an upper body communicating with the bottom space; A lower body forming a predetermined space therein in combination with the upper body, an inlet having an orifice formed therein, and an outlet; A diaphragm valve having an upper plate body and a lower plate body coupled to each other in a stacked state, forming a ring-shaped recess in the center of the upper plate body, and forming a lifting shaft extending a predetermined length below the lower plate body, and forming shaft holes on both sides thereof; A control fitting screwed into the pillar of the upper body; An elastic member that is elastically supported between the lower end of the adjustment port and the recess of the diaphragm valve; And one end is rotatably connected to the lifting shaft of the diaphragm valve and the other end is axially supported on the inlet side of the lower body, and including an opening and closing member for opening and closing the inlet, the inlet is in accordance with the up and down shaft of the diaphragm valve It is characterized by opening and closing.

The opening and closing member of the water level adjusting apparatus of the present invention for achieving the above object,

One end forms a fork-type arm, and the other end forms an opening / closing cap, and the second shaft pin is formed on the inside of the opening / closing cap while being pivotally fixed to the first shaft pin in an arm surrounding both sides of the lifting shaft of the diaphragm. It is characterized in that the opening and closing while opening and closing the opening and closing member is interlocked with the Si iso at the same time as the lifting shaft.

The opening and closing cap of the opening and closing member of the water level adjusting apparatus of the present invention for achieving the above object is characterized by being formed as opening and closing holes (rubber) for blocking the orifice of the inlet.

The screw hole is formed in the center of the upper surface of the upper body column of the water purification apparatus of the present invention for achieving the above object is in communication with the inside, the screw hole is the threaded control sphere is screwed to the elasticity of the elastic member It is characterized by adjusting.

The control mechanism of the water level adjusting apparatus of the present invention for achieving the above object is preferably to form a control piece coupled between the elastic member and the lower end.

An upper body formed with a passage and an orifice on the inlet side of the water level adjusting device of the present invention for achieving the above object; A lower body which opens and closes and forms an inlet; A valve body having a valve ring formed between the upper and lower shafts; It is preferable to further include a check valve made of an elastic member installed on the upper shaft of the valve body.

Inlet of the lower body of the water purification apparatus of the present invention for achieving the above object is to form an orifice, the opening and closing member is preferably formed to form a cup-shaped opening and closing.

In order to achieve the above object, it is preferable to further form a check valve for preventing a backflow on the inlet side of the water level adjusting apparatus of the present invention.

The present invention has the effect of providing a water level control means that can maintain the water level of the water in the chamber filled with water without the water tank.

The present invention maintains the open state of the opening and closing means while generating the first lowering force by the supply water pressure, and the lifting force of the diaphragm is given by the hydraulic pressure of the supply water passing through the opening and closing means in the second open state, thereby raising and lowering. It has a balanced level control effect.

The present invention has the effect of simplifying the structure of the complex water level regulator.

The present invention is further provided with a check valve to block the excessive supply of the supply water in the water level control device has the effect of preventing the back flow.

The present invention improves the deterioration of the quality of the ice while deicing is performed in a state where the water is insufficient in the prior art, so that the water quantity (water level) in the ice maker is constantly maintained, thereby increasing the ice making efficiency.

Figure 2 of the accompanying drawings is a perspective view of the water level adjusting apparatus of the present invention, Figure 3a is an exploded perspective view of Example 1 of the water level adjusting apparatus of the present invention, Figure 4 is a cross-sectional view of Example 1 of the water level adjusting apparatus of the present invention.

The water level adjusting apparatus of the present invention according to the drawings comprises an upper body 110, a lower body 120, a diaphragm valve 130, and an opening and closing member 140 for opening and closing the inlet 121.

The upper body 110 forms a circular pillar 112 in the center of the upper surface portion 111 of the plate shape, the interior of the pillar 112 is hollow but in communication with the bottom space. Adjusting member 115 is screwed to the pillar 112 of the upper body 110, the elastic having elasticity between the lower end of the adjusting member 115 and the inlet 132 of the diaphragm valve 130 The member 117 is supported.

A screw hole 112a having a spiral 112b is formed at the center of the upper surface of the pillar 112 of the upper body 110 so as to communicate with the inside, and the adjusting hole 115 having a spiral 115a is formed in the screw hole 112a. ) Is screwed to adjust the elasticity of the elastic member (117).

The adjusting device 115 forms an adjusting piece 116 coupled to the elastic member 117 at the lower end thereof to stably support the elastic member 117.

The lower body 120 is combined with the upper body 110 to form a predetermined space therein, and forms an inlet 121 and an outlet 122 formed with an orifice 151a under the lower body 120.

The diaphragm valve 130 is coupled to the upper plate 131 and the lower plate 134 in a stacked state, and forms a ring-shaped recess 132 in the center of the upper plate 131 and the lower plate 134 of the diaphragm valve 130. A lifting shaft 135 extending a predetermined length downward is formed, but shaft holes 136 are formed on both sides of the outside.

One end is rotatably connected to the lifting shaft 135 of the diaphragm valve 130 and the other end is held on the inlet 121 side of the lower body 120 and the opening and closing member 140 for opening and closing the inlet 121. ),

One end forms the fork-shaped arm 143, and the other end forms the opening / closing cap 144 to the first shaft pin 141 from the arm 143 surrounding both sides of the lifting shaft 135 of the diaphragm 130. The shaft is securely rotatable and the second shaft pin 142 is axially fixed to the inside of the opening / closing cap 144 so that the opening / closing member 140 is opened and closed while being interlocked with the iso shaft at the same time. The opening / closing hole 144a for blocking the orifice 151a of the inlet 121 is formed in the opening / closing cap 144 of the opening / closing member 140.

3B is an exploded perspective view of Embodiment 2 of the present invention, and FIG. 5 is a cross-sectional view of Embodiment 2 of the present invention.

On the other hand, the present invention can add a check valve 150 in addition to the above-described water level control device of the first embodiment.

That is, the check valve 150 includes an upper body 151 having a passage 151b and an orifice 151a on the inlet 121 side; A lower body 152 having opening and closing holes 152a and an inlet 152b; A valve body 153 having a valve ring formed between the upper and lower shafts; It is made of an elastic member 154 coalesced on the upper shaft of the valve body 153.

It describes the operation of the water level control device of the present invention made as described above.

Ice maker or water purifier to which the present invention is applied is connected to the water level control device 100 at a suitable position of the water supply pipe 10, the water supply pipe 10 is a freezing circuit 200 for freezing the ice supplied again and the freezing, An ice making load control circuit (A) for detecting the ice making state of the circuit and adjusting the freezing capacity of the freezing circuit according to the change of the ice making capacity.

5A, 5B, and 5C of the accompanying drawings are sectional views of the present invention, and FIG. 6 is an overall schematic view of an ice making apparatus to which the present invention is applied.

The water level adjusting device 100 according to the drawings adjusts the water level of the water before ice making in the cylinder 200, such as an ice maker and a water purifier, to which a refrigeration cycle is applied.

Initially, as shown in FIG. 5B, the diaphragm valve 130 descends to the maximum, and the opening / closing cap 144 opens the orifice 121a of the inlet 121 by the opening / closing member 140 linked thereto. Water is supplied through the inlet 121.

Thereafter, as shown in FIG. 5C, as the water supply pressure of the lower space of the diaphragm valve 130 rises while passing through the intermediate level of the cylinder 200, the diaphragm valve 130 moves upward. As the diaphragm valve 130 rises, the first shaft pin 141 side of the opening / closing member 140 having one end fixed to the central shaft 135 is raised, and the opening / closing cap 144 is the second shaft pin 142. As the shaft is rotated upward, the opening / closing cap 144 descends in proportion to the rise of the diaphragm valve 130, thereby narrowing the distance between the opening / closing cap 144 and the inlet 121.

When the water supply state reaches the full water level of the cylinder 200 as shown in FIG. 5A, the water supply pressure of the lower space of the diaphragm valve 130 rises to the maximum, and the diaphragm valve 130 also rises to the maximum, which is eventually linked thereto. The opening / closing cap 140 blocks the inlet 121 by the opening / closing member 140 to block further water supply to maintain the target water level of the cylinder 200.

That is, it continues until F2> F1 (water inlet force), which is a water supply stop condition.

F ₁; Power [= A₁ * P₁]

         Wherein A ′; Orifice cross-sectional area of inlet, P₁; Feedwater pressure entering the inlet.

F2; Water stopping force [= (A₂ * g * h-Fs) * a / b]

       Where A 2; Diaphragm valve cross section, g; Gravitational acceleration, h; Target water level, Fs; Elastic member elasticity, a / b; Lever length ratio of the switching member (a: diaphragm side length, b: inlet side length),

That is, when the water pressure under the diaphragm valve 130 which is equivalently formed by the water level of the cylinder 200 elevated by the water exiting the outlet 122 is increased, the central axis 135 is also gradually raised to open / close the member ( The long shaft of the 140 is raised and the short shaft is lowered to block the orifice 121a of the inlet 121.

That is, when the opening and closing cap 144 is covered on the orifice 121a, the opening and closing hole 144a is seated on the upper end of the orifice 121a to block the water supply.

The opening and closing hole 144a for blocking the orifice 121a of the inlet 121 is formed on the opening and closing cap 144 of the opening and closing member 140, the opening and closing cap 144 is rotated from above to orifice ( 121a) is covered and pressurized to block most of the water supply while pinching the top of the orifice 121a.

On the inlet 121 side of the present invention, the water level adjusting device 100 according to the drawings it may be further installed a check valve for preventing backflow (150).

The check valve 150 shuts off the inlet 121 when a reverse flow phenomenon occurs due to an abnormal negative pressure (-pressure) generation on the inlet 121 side of the water level control device.

That is, the check valve 150 applied to the water level adjusting device of the present invention is composed of valve bodies 151 and 152, a valve body 153, an elastic member 154, and an O-ring 155.

The upper valve body 151 forms the passage 151b and the orifice 151a, and the lower body 152 forms the opening and closing hole 152a and the inlet 152b, but the valve body 153 and the elastic member 154 is snowballed. Therefore, when the valve body 153 moves by the water pressure of the water supplied to the inlet 152b and the passage is opened, the opening / closing cap 144 covering the orifice 151a is opened by the water pressure so that the water is normally supplied.

1 is an overall configuration diagram of a water supply, ice making, and freezing cycle of a conventional auger ice maker.

Figure 2 is a perspective view of the water level adjusting apparatus of the present invention,

Figure 3a is an exploded perspective view of Example 1 of the water level adjusting device of the present invention,

Figure 3b is an exploded perspective view of Example 2 of the water level adjusting device of the present invention,

Figure 4a is a cross-sectional view of Example 1 (without check valve) of the water level adjusting device of the present invention,

Figure 4b is a cross-sectional view of Example 2 (with a check valve) of the water level adjusting device of the present invention,

Figure 5a, 5b, 5c is a cross-sectional view of the operation of the water level regulator of the present invention,

6 is an overall schematic diagram of an ice making apparatus to which the present invention is applied.

* Description of the symbols for the main parts of the drawings *

110: upper body, 120: lower body, 130: diaphragm valve, 140: opening and closing member,

150: check valve,

Claims (7)

In the water level control device consisting of the upper body 110 and the lower body 120, the diaphragm 130 is formed therein, and the opening and closing member 140 for opening and closing the inlet side, A second shaft pin is connected to the lifting shaft 135 of the diaphragm valve 130 by the first shaft pin 141 and the opening and closing cap 144 opens and closes the inlet 121 side. The water level adjusting device, which is connected to the 142 and simultaneously with the lifting and lowering of the lifting shaft 135, interlocks the second shaft pin 142 with the shaft to open and close the inlet 121. In the water level regulator, A circular pillar 112 is formed at the center of the upper surface portion 111 of the plate shape, and the inside of the pillar 112 forms a hollow but is in communication with the bottom space; A lower body 120 coupled to the upper body 110 to form a predetermined space therein, an inlet 121 having an orifice 121a formed at a lower side thereof, and an outlet 122 formed thereon; The upper plate 131 and the lower plate 134 are coupled in a stacked state, and a ring-shaped recessed portion 132 is formed at the center of the upper plate 131, and the lifting is extended by a predetermined length below the lower plate 134. A diaphragm valve 130 forming a shaft 135 but having shaft holes 136 formed on both outer sides thereof; A control member 115 screwed to the pillar 112 of the upper body 110; An elastic member 117 that is elastically supported between the lower end of the adjustment port 115 and the concave inlet 132 of the diaphragm valve 130; and One end is rotatably connected to the lifting shaft 135 of the diaphragm valve 130 and the other end is held on the inlet 121 side of the lower body 120 and the opening and closing member 140 for opening and closing the inlet 121. Including) The water level adjusting device, characterized in that the inlet 121 is opened and closed according to the up and down movement of the lifting shaft 135 of the diaphragm valve 130. The method of claim 1 or 2, wherein the opening and closing member 140, One end forms the fork-shaped arm 143, and the other end forms the opening / closing cap 144 to the first shaft pin 141 from the arm 143 surrounding both sides of the lifting shaft 135 of the diaphragm 130. Axial rotation is possible and the inside of the opening and closing cap 144, the second shaft pin 142 is fixed to the shaft opening and closing the opening and closing member 140 at the same time as the lifting shaft 135, the opening and closing while opening Water level adjusting device, characterized in that. The method of claim 3, The opening and closing cap 144 of the opening and closing member 140 is a water level adjusting device, characterized in that the opening and closing hole (144a) for blocking the orifice (121a) of the inlet (121) is formed. The screw hole 112a having a spiral 112b is formed at the center of the upper surface of the pillar 112 of the upper body 110 so as to communicate with the inside thereof, and the spiral hole 113a is formed in the screw hole 112a. The formed adjustment port 115 is screw-fitting water level adjustment device, characterized in that for adjusting the elasticity of the elastic member (117). 3. The method of claim 2, The control device 115 is a water level adjusting device, characterized in that to form a control piece 116 coupled between the elastic member 117 at the lower end. The upper body 151 of claim 2, further comprising: a passage 151b and an orifice 151a at the inlet 121; A lower body 152 having opening and closing holes 152a and an inlet 152b; A valve body 153 having a valve ring formed between the upper and lower shafts; And a check valve (150) made of an elastic member (154) carbonized on the upper shaft of the valve body (153).

Images