Beverage cooling and pouring device

The present invention relates to a beverage cooling pouring device for instantly cooling and pouring a beverage such as beer.

Conventionally, this type of beverage cooling injection device has been installed in restaurants and the like as a beer server that instantly cools beverages such as beer (see, for example, Patent Document 1).

FIG. 2 is a configuration diagram viewed from the side of the conventional beverage cooling injection device described in Patent Document 1. As shown in FIG. 2, the beverage cooling injection device 4 is composed of the water tank 2 for storing the cooling water 1 and the cooling unit 3. The cooling unit 3 is a refrigerating cycle in which the compressor 5, the condenser 6, the decompressor 7, and the evaporator 8 are sequentially connected by piping. A part of the cooling water 1 is frozen by the evaporator 8 to form ice. The beverage pipe 9 allows the beverage 10 to pass from the outside of the water tank 2 into the water tank 1 to exchange heat between the beverage 10 and the cooling water 1, cool the beverage 10, and then discharge the beverage 10 to the outside. .. Further, the temperature of the cooling water 1 is made uniform by rotating the stirring blade 12 by the stirring motor 11 to stir the cooling water 1, and the temperature of the cooling water 1 does not rise partially or temporarily. It is something to do.<patcit num="1"><text>Japanese Unexamined Patent Publication No. 2000-88425</text></patcit>

<p> However, in the above-mentioned conventional configuration, when the initial pull-down is performed, especially when overload conditions such as high water temperature, low voltage, and high ambient temperature elapse for a certain period of time or more, the low pressure of the compressor rises excessively, so that the compressor The operating current and shell temperature of the compressor will rise excessively, making it easier for the compressor protection device to operate. Therefore, there is a problem that the water tank cannot be cooled due to the abnormal stop of the compressor.</p><p> The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a beverage cooling injection device capable of continuous cooling operation without operating the compressor protection device even under high load conditions at the time of initial pull-down. ..</p>

<p> In order to solve the above-mentioned conventional problem, in the beverage cooling injection device of the present invention, a water tank for storing cooling water, a compressor, a condenser, a decompressor and an evaporator are sequentially connected by pipes, and the evaporator is used. A cooling unit that freezes a part of the cooling water to form ice and a beverage supplied from the outside of the water tank are passed through to exchange heat between the beverage and the cooling water to cool the beverage. An overload detecting means for detecting that the compressor is in an overloaded state, which comprises a drinking pipe to be discharged to the outside later, a stirring blade for stirring the cooling water, and a stirring motor for rotating the stirring blade. The overload detecting means comprises an overload determining means for determining that the compressor is in an overloaded state, and a stirring motor controlling means for reducing the rotation of the stirring motor when the compressor is in the overloaded state. Is.</p><p> As a result, when the overload state of the compressor is detected, the evaporative capacity can be suppressed and the low pressure can be lowered by controlling the flow velocity of the cooling water to be suppressed. Therefore, even in the overload state, the operating current and the shell temperature do not rise to the operating current / temperature level of the compressor protection device, so that stable cooling operation can be provided without the protection device operating.</p><p> Further, the beverage cooling pouring device of the present invention includes an overload detecting means for detecting the evaporation temperature and an overload determining means for determining that the compressor is in an overloaded state when the evaporation temperature exceeds a predetermined temperature. It is provided.</p><p> This makes it possible to detect the overload state of the compressor using a temperature sensor that is cheaper than the pressure sensor.</p><p> Further, the beverage cooling injection device of the present invention includes an overload detecting means for detecting the operating current of the compressor and the shell temperature of the compressor, and a case where the calculated value consisting of the operating current and the shell temperature exceeds a predetermined value. Is provided with an overload determining means for determining that the compressor is in an overloaded state.</p><p> As a result, the operating current and the shell temperature of the compressor, which are the characteristics of the compressor protection device, are directly detected, so that it is possible to accurately detect whether or not the compressor is in an overloaded state.</p><p> Further, the beverage cooling and pouring device of the present invention includes an overload detecting means for detecting the water temperature in the water tank and an overload determining means for determining that the compressor is in an overloaded state when the water temperature exceeds a predetermined value. Is provided.</p><p> As a result, the water temperature detecting means of the present invention can be shared with the temperature detecting means for water temperature control or water supply, and the cost can be reduced.</p>

<p> The beverage cooling pouring device of the present invention is reliable because it enables stable cooling operation without operating the protective device by controlling the flow velocity of the cooling water when the overload state of the compressor is detected. We can provide a certain device to our customers.</p><p> Further, the beverage cooling and pouring device of the present invention can detect the overload state of the compressor by using the temperature sensor, and thus becomes cheaper.</p><p> Further, since the beverage cooling injection device of the present invention can detect the overload state of the compressor by using the operating current of the compressor and the shell temperature of the compressor, it can detect the overload state of the compressor with high accuracy just before the operating limit of the compressor protection device. It can be done without unnecessarily reducing the cooling capacity.</p><p> Further, since the beverage cooling injection device of the present invention can detect the water temperature in the water tank and determine the overload state, it can be shared with the temperature detecting means for water temperature control and water supply required as the beverage cooling injection device. It is possible to reduce the cost.</p>

In the invention according to claim 1, a water tank for storing cooling water, a compressor, a condenser, a decompressor, and an evaporator are sequentially connected by pipes, and a part of the cooling water is frozen by the evaporator to freeze ice. A cooling unit to be formed, a beverage pipe through which a beverage supplied from the outside of the water tank is passed, heat exchange is performed between the beverage and the cooling water to cool the beverage, and then the beverage pipe is discharged to the outside. The compressor is composed of a stirring blade for stirring the cooling water, a stirring motor for rotating the stirring blade, an overload detecting means for detecting that the compressor is in an overloaded state, and the overload detecting means for the compressor. The overload state of the compressor is composed of an overload determination means for determining an overload state and a stirring motor control means for reducing the rotation of the stirring motor in the case of the overload state. By controlling the flow velocity of the cooling water, the evaporation capacity can be suppressed and the low pressure pressure can be lowered, and the operating current and shell temperature do not have to rise to the operating current / temperature level of the compressor protection device. Stable cooling operation is possible without the protection device operating, and reliable equipment can be provided to customers.

According to the second aspect of the present invention, the beverage cooling injection device according to the first aspect is overloaded with an overload detecting means for detecting a low pressure and a compressor when the low pressure exceeds a predetermined pressure. The overload state can be grasped more concretely by the configuration including the overload determination means for determining the state.

In the invention according to claim 3, the beverage cooling injection device according to claim 1 has an overload detecting means for detecting the evaporation temperature and the compressor when the evaporation temperature exceeds a predetermined temperature. The overload state of the compressor can be detected by using a cheaper temperature sensor such as a pressure sensor by the configuration including the overload determination means for determining the load state.

The invention according to claim 4 comprises an overload detecting means for detecting the operating current of the compressor and the shell temperature of the compressor, and the operating current and the above. By configuring the compressor as an overload determining means for determining that the compressor is in an overloaded state when the calculated value consisting of the shell temperature exceeds a predetermined value, the operating current and compression, which are the characteristics of the compressor protection device, are used. Since the shell temperature of the machine is directly detected, it is possible to accurately detect whether or not it is in an overloaded state.

The invention according to claim 5 is the beverage cooling injection device according to claim 1, wherein the overload detecting means for detecting the water temperature in the water tank and the compressor when the water temperature exceeds a predetermined value are used. By configuring it with an overload determination means for determining an overload state, the water temperature in the water tank can be detected and the overload state can be determined. It can be shared with the temperature detecting means for water supply, resulting in cost reduction.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to this embodiment.

(Embodiment 1) FIG. 1 is a configuration diagram viewed from the side of the beverage cooling injection device according to the first embodiment of the present invention.

In the invention of this embodiment, parts having the same configuration and operation as those of the background art are designated by the same reference numerals, detailed description thereof will be omitted, and different parts will be mainly described.

In FIG. 1, the first control device CN1 has an overload detecting means for detecting that the compressor 5 is in an overloaded state, and an overload detecting means for determining that the compressor 5 is in an overloaded state. It includes a load determining means and a stirring motor control means for reducing the rotation of the stirring motor 11 in an overloaded state. The pressure sensor LP is an overload detecting means for detecting the low pressure pressure Ps (or the evaporation pressure Pe which is the pressure of the evaporator 16) which is the suction part pressure of the compressor 5.

The operation and operation of the beverage cooling and pouring device configured as described above will be described below.

During the cooling operation of the beverage cooling injection device 4, the low pressure pressure Ps (or evaporation pressure Pe) is sequentially detected by the pressure sensor LP which is an overload detecting means. Next, when the detected low-pressure pressure Ps (or evaporation pressure Pe) exceeds a predetermined predetermined pressure P1 by the overload determination means, it is determined that the compressor 5 is in an overload state. .. At this time, the rotation of the stirring motor 11 is reduced by the stirring motor control means.

As a result, by controlling the flow velocity of the cooling water 1 to be suppressed in the overloaded state of the compressor 5, the evaporation capacity can be suppressed to a low level, and as a result, the low pressure can be reduced. Therefore, since the operating current and the shell temperature are not raised to the current / temperature level at which the protective device of the compressor 5 operates, the protective device does not operate. Therefore, stable cooling operation is possible, and reliable equipment can be provided to the customer.

Further, the overload state of the compressor 5 can also be detected by detecting the evaporation temperature Te with a temperature sensor as an overload detecting means. In this case, the overload determining means determines that the compressor 5 is in an overloaded state when the evaporation temperature Te exceeds the predetermined predetermined temperature T1. Therefore, it is cheaper than the case where the pressure sensor is used as the overload detecting means.

Further, as the overload detecting means, the overload state of the compressor 5 can be detected by detecting the operating current I of the compressor 5 and the shell temperature TS. When the operating current I and the shell temperature TS exceed the predetermined predetermined operating current I1 and the shell temperature TS1, the compressor 5 is determined to be in the overloaded state by the overload determining means. In this case, since the operating current and the shell temperature of the compressor, which are the operating parameters of the protective device of the compressor 5, can be directly detected, it is possible to accurately detect whether or not the compressor 5 is in an overloaded state. Therefore, the operation can be continued without lowering the cooling capacity until the operating limit of the compressor protection device is reached.

Further, as the overload detecting means, the overload state of the compressor 5 can be detected by detecting the water temperature TW of the cooling water 1. When the water temperature TW exceeds a predetermined predetermined water temperature TW1, the compressor 5 is determined to be in an overloaded state by the overload determining means. In this case, since the water temperature TW of the cooling water 1 is detected, it can be shared with the water temperature display required as the beverage cooling pouring device and the means for determining the presence or absence of the cooling water, so that the cost can be reduced.

As described above, in the present embodiment, the overload detecting means for detecting the overload state of the compressor 5 and the overload detecting means determine that the compressor 5 is in the overload state. Since the compressor 5 is provided with the first control device CN1 including the overload determining means and the stirring motor control means for reducing the rotation of the stirring motor 11 in the overloaded state, the compressor 5 is in the overloaded state. When the determination is made, the rotation of the stirring motor 11 is reduced by the stirring motor control means, and the flow velocity of the cooling water 1 is suppressed in the overloaded state of the compressor 5. Therefore, the evaporation capacity can be kept low, and as a result, the low pressure can be lowered, and the operating current and shell temperature are not raised to the current / temperature level at which the protector of the compressor 5 operates, so that the protector operates. There is no. Therefore, stable cooling operation is possible, and reliable equipment can be provided to the customer.

In the present embodiment, the rotation of the stirring motor 11 is reduced to suppress the flow velocity of the cooling water 1, but it goes without saying that the same effect can be obtained by completely stopping the rotation of the stirring motor 11.

Further, in the present embodiment, a part of the cooling water 1 is frozen to form ice, but it goes without saying that a cold storage material other than the cooling water 1 has the same effect.

As described above, since the beverage cooling injection device according to the present invention can provide stable cooling operation even under harsh conditions, it can be widely applied to applications such as refrigerators, showcases, and other cooling devices.

<figref num="1">Configuration diagram seen from the side of the beverage cooling injection device according to the first embodiment of the present invention.</figref><figref num="2">Configuration view from the side of the conventional beverage cooling dispenser</figref>

Code description

1 Cooling water 2 Water tank 3 Cooling unit 4 Beverage cooling dispenser 5 Compressor 6 Condenser 7 Decompressor 8 Evaporator 9 Beverage tube 10 Beverage 11 Stirring motor 12 Stirring blade LP pressure sensor (overload detection means)