KR100924595B1 - Cooling apparatus - Google Patents

Abstract

PURPOSE: A cooling device is provided to facilitate installation to a device to be cooled by being integrated with or detachably assembled to a microorganism cultivation device and other heating units. CONSTITUTION: A cooling device comprises a heating unit and a cooling unit. The heating unit(100) is heated over the constant temperature. The cooling unit expands refrigerant and drops the pressure and the temperature of the refrigerant and cools the heating unit to the constant temperature. The cooling unit includes a main body, a compressor, a condenser, a first expander, an evaporator, and a second expander. The main body is connected to the heating unit. The compressor(230) is installed at the main body and compresses gas refrigerant to be liquefied. The condenser(250) is connected to the compressor and condenses the gas delivered from the compressor into the liquid of the medium temperature and high-pressure. The first expander(220) is connected to the condenser and converts the liquid of the medium temperature and high-pressure into the liquid of low temperature and low pressure. The evaporator(210) is connected to the first expander and cools the heating unit at constant temperature. The second expander(240) is connected to the evaporator and expands the gas of high pressure and high temperature to be converted into the gas of low temperature and low pressure.

Description

Cooling Unit {COOLING APPARATUS}

The present invention relates to a cooling apparatus, and more particularly, a failure of a compressor generated by expanding a plurality of refrigerants to efficiently deliver high-temperature, high-pressure gas to a compressor at a low-temperature low-pressure state, and directly delivering the compressor to a high-temperature, high-pressure compressor. Can be controlled to satisfy the conditions of low temperature and low pressure by multiple monitoring whether the high temperature and high pressure gas passing through the evaporator satisfies the conditions of the low temperature and low pressure set in advance. The present invention relates to a cooling apparatus that can be easily installed and cooled in an apparatus to be cooled by being configured integrally or detachably with another heat generating unit.

In recent years, environmental pollution is intensifying, and researches for decomposing hardly decomposable substances using microorganisms are being actively conducted.

Livestock manure and wastes pollute soil, air and water significantly, and as a method for decomposing these substances, photosynthetic bacteria can be easily decomposed while preventing side effects such as secondary pollutant discharge.

Accordingly, the demand for microorganisms, including photosynthetic bacteria, is increasing rapidly. Recently, research and development of devices and methods for artificially producing microorganisms have been actively conducted.

However, the conventional apparatus for culturing microorganisms has a disadvantage in that microorganism cultivation cannot be efficiently performed as well as temperature control in the culture tank, as well as the rapid supply of culture water.

That is, in the conventional microbial culture apparatus, after supplying the culture water to the culture tank, the culture water must be heated to a predetermined temperature (eg, 80 to 90 ° C.) for sterilization.

In addition, the conventional microbial culture apparatus needs to be cooled and stored under temperature conditions (eg, 30 to 40 ° C.) for microbial culture after heating of the culture water. However, since the conventional culture apparatus applies a natural cooling method that waits for the temperature of the culture water to drop, the operation of setting the culture temperature has to take a considerable time.

In addition, when cooling the heating temperature of the microorganism culture apparatus using a conventional cooling device, the high-temperature and high-pressure gas refrigerant passing through the evaporator is immediately delivered to the compression, causing the compressor to generate a certain load or more, causing a problem. Was frequent.

Therefore, in order to solve such a problem in the related art, a discharge port is formed in the pipe in front of the compressor, and when a high pressure or more is applied to the compressor, the gas is forced to drain through the discharge port.

However, since such a method does not accurately determine when the high pressure is applied to the compressor, a problem occurs that the compressor is broken when the wrong time point for correct high pressure is incorrectly selected.

In addition, such a conventional cooling device was not only able to selectively attach not only a heat generating device such as the microorganism culturing device but also to other heat generating devices used in restaurants to cool down the temperature of the heat generating devices.

The present invention has been made to solve the above problems, the present invention is to expand the number of refrigerant to efficiently deliver the gas of high temperature and high pressure to the compressor in the state of low temperature low pressure to abnormal low temperature low pressure state, that is, the state of high temperature and high pressure It is to provide a cooling device that can prevent the failure of the compressor generated by being delivered directly to the compressor in advance.

Another object of the present invention is to provide a cooling apparatus capable of controlling the high temperature and high pressure gas passing through the evaporator to satisfy the low temperature and low pressure conditions set by multiple monitoring whether the high temperature and high pressure gas is satisfied.

Still another object of the present invention is to provide a cooling apparatus that can be easily installed and cooled in an apparatus to be cooled by configuring the cooling apparatus integrally or detachably with the microorganism culture apparatus and other heat generating units.

The present invention provides a cooling device for solving the above problems.

The cooling device includes a heat generating unit that generates heat above a predetermined temperature; And a cooling unit that expands the refrigerant to be evaporated in multiple numbers, lowers the temperature below a predetermined pressure and temperature, and cools the heat generating unit to a predetermined temperature.

The cooling unit may include a main body connected to the heat generating unit, a compressor installed in the main body and compressing a refrigerant, which is a gas, into a liquefied state; A condenser condensed into a liquid of the liquid crystal, a first expander connected to the condenser to form a liquid of low temperature and low pressure, and a low expander liquid connected to the first expander to form a low temperature low pressure gas. And an evaporator for cooling the heat generating unit to a predetermined temperature, and a second expander connected to the evaporator and expanding the high-temperature, high-pressure gas passing through the evaporator to form a low-temperature, low-pressure gas.

Preferably, the second expander is a radiator in which one end of the second expander is connected to the evaporator and the first tube and the other end of the second expander is connected to the compressor and the second tube.

In addition, the cooling device further comprises a monitoring unit, the monitoring unit is installed in the second pipe and the temperature sensor for detecting the first temperature value of the gas flowing into the second pipe, the first pipe and the second pipe A bypass pipe connecting the pipes to each other, an on / off valve for opening the bypass pipe by receiving an electrical signal from the outside, and electrically connected to the temperature sensor and the on / off valve, and a reference first temperature range is set and the An electrical signal is transmitted to the on / off valve to open the on / off valve to open the bypass pipe when the first temperature value sensed by the temperature sensor is received and the detected first temperature value exceeds the reference first temperature value range. It is preferable to have a controller for transmitting the.

Here, the second pipe is further provided with a pressure sensor for detecting the first pressure value of the gas flowing into the second pipe and transmits the detected first pressure value to the controller, the controller is the pressure sensor Receiving the first pressure value detected from the electronic signal to the on / off valve to open the on / off valve to open the bypass pipe when the detected first pressure value exceeds the reference first pressure value range. It is preferable.

In addition, the cooling device may further include an auxiliary monitoring unit for checking the temperature and pressure of the gas flowing into the first pipe.

The auxiliary monitoring unit may include an auxiliary bypass pipe connecting the first pipe and the second pipe to each other, an auxiliary temperature sensor installed at the first pipe and sensing a second temperature value of the gas flowing from the evaporator; An auxiliary pressure sensor installed in the first pipe to sense a second pressure value of the gas flowing from the evaporator, an auxiliary opening / closing valve to open and close the auxiliary bypass pipe, the auxiliary temperature sensor and the auxiliary pressure sensor, and The reference second temperature value is electrically connected to the on / off valve, and the reference second temperature value range and the reference second pressure value range are set, and the second temperature value detected by the auxiliary temperature sensor is transmitted to the reference second temperature. The second pressure value received from the auxiliary pressure sensor is included in the value range and the detected second pressure value is included in the reference second pressure value range. It is preferable to include an auxiliary controller for transmitting an electrical signal to the auxiliary on-off valve to open the auxiliary on-off valve to open the auxiliary bypass pipe.

Here, the radiator forms a pipe of a predetermined length, it is preferable that one or more locations of the pipe is formed with a neck portion having a predetermined cross-sectional area of the pipe or less.

Preferably, the controller and the auxiliary controller are further electrically connected to a selector capable of selecting any one of the controller and the auxiliary controller.

In addition, the heat generating unit may be integrally formed with the cooling unit.

In addition, the cooling unit may be detachably coupled with the heat generating unit.

Here, a sliding rail is formed on one side of the heat generating unit, and one side of the main body of the cooling unit may be formed in a sliding groove slidingly coupled with the sliding rail.

In addition, the heating unit is preferably a microbial culture apparatus for culturing microorganisms by supplying the culture water to the culture tank and then heating the culture water to a predetermined temperature for sterilization treatment.

The present invention has the effect of efficiently expanding a large number of refrigerant to efficiently deliver the gas of high temperature and high pressure to the compressor in the state of low temperature low pressure to prevent the failure of the compressor caused by being directly transmitted to the compressor in the state of high temperature and high pressure. .

In addition, the present invention has the effect of controlling to satisfy the conditions of the low temperature and low pressure set by multiple monitoring whether the high temperature and high pressure gas passing through the evaporator satisfies the conditions of the predetermined low temperature and low pressure.

In addition, the present invention has an effect that can be easily installed and cooled in the device to be cooled by configuring the cooling device integrally or detachably to the microorganism culture device and other heat generating unit.

Hereinafter, the cooling apparatus of the present invention will be described with reference to the accompanying drawings.

1 is a view schematically showing a configuration of a cooling device of the present invention. 2 is another view showing the cooling device of the present invention. Figure 3 is a view showing the connection between the vicinity of the second expander and the monitoring unit according to the present invention. 4 is a view illustrating a connection relationship between a second expander and a monitoring unit and an auxiliary monitoring unit according to the present invention. 5 is a cross-sectional view showing a partial cross section of the second expander along the line II ′ of FIG. 3. 6 is a cross-sectional view showing a first example of a detachable configuration of a heat generating unit and a cooling device according to the present invention. 7 is a cross-sectional view showing a second example of the detachable configuration of the heat generating unit and the cooling device according to the present invention. 8 is a partial cross-sectional view showing that the metal plate is further installed in the coupling groove of FIG.

Referring to FIG. 1, the cooling apparatus of the present invention includes a heat generating unit 100 and a cooling unit 200 which is integrally or detachably connected to the heat generating unit 100.

Here, the heat generating unit 100 may be a microbial culture apparatus for culturing microorganisms by supplying culture water to a culture tank (not shown) and then heating the culture water to a predetermined temperature for sterilization treatment. The heat generating unit 100 can form a heating temperature of about 95 degrees Celsius.

The cooling unit 200 may expand the refrigerant in multiple numbers, lower the temperature below a predetermined pressure and temperature, and cool the heat generating unit 100 to a predetermined temperature. The cooling unit 200 can be cooled to about 35 degrees by cooling the culture water 500 liters for 2 hours at the heating temperature of 95 degrees Celsius.

The configuration of the cooling unit 200 will be described with reference to FIG. 2.

The cooling unit 200 includes a main body 201 connected to the heat generating unit 100, a compressor 230 installed in the main body 201, and a compressor 230 that compresses a refrigerant, which is a gas, into a liquefied state, and the compressor Condenser 250 is connected to the 230 and condensing the gas received from the compressor 230 to a medium temperature high pressure liquid, and is connected to the condenser 250 to form a liquid of low temperature low pressure liquid of the medium temperature high pressure The first expander 220 and the first expander 220 is connected to the low-temperature low-pressure liquid to form a low-temperature low-pressure gas to form a portion of the heating unit 100 is preferably a portion where the culture tank is located Evaporator 210 for cooling to a predetermined temperature, and the second expander 240 is connected to the evaporator 210 and expands to form a gas of high temperature and high pressure passed through the evaporator 210 to form a low temperature low pressure gas. .

Here, the first expander 220 is preferably an expansion valve.

Therefore, the compressor 230 compresses the refrigerant in a gaseous state constituting a low temperature and low pressure to liquefy. In addition, the condenser 250 condenses the compressed gaseous refrigerant into liquid of medium temperature and high pressure, and the condensed medium temperature and high pressure liquid is formed into a liquid of low temperature and low pressure by the first expander 220, which is an expansion valve. .

The low temperature low pressure liquid phase changes into a low temperature low pressure gas state while passing through the evaporator 210 to cool the heat generated by the heat generating unit 100. Accordingly, the low temperature low pressure gas is formed in a high temperature high pressure gas state.

Subsequently, the gas of high temperature and high pressure is expanded once again while passing through the second expander 240 to maintain the gas state of low temperature and low pressure, and then is delivered to the compressor 230 again.

Here, the second expander 240 is a device such as a radiator, which is connected to the first tube 10, the other end is connected to the second tube 20, the corrugated pipe 241 through which the gas of high temperature and high pressure flows Has

In addition, referring to FIG. 3, the cooling device further includes a monitoring unit 300.

The monitoring unit 300 is installed in the second tube 20, the temperature sensor 310 for detecting the first temperature value of the gas flowing into the second tube 20, and the first tube 10 And a bypass pipe 350 connecting the second pipe 20 to each other, an opening / closing valve 340 for opening the bypass pipe 350 by receiving electrical signals from the outside, and the temperature sensor 310. And a reference first temperature value range electrically connected to the on / off valve 340 and receiving a first temperature value detected from the temperature sensor, wherein the detected first temperature value corresponds to the reference first temperature value range. The controller 330 transmits an electrical signal to the on / off valve 340 to open the on / off valve 340 to open the bypass pipe 350.

In addition, the second pipe 20 detects a first pressure value of the gas flowing into the second pipe 20 and transmits the detected first pressure value to the controller 330. Is further installed, and the controller 330 receives the first pressure value detected from the pressure sensor 320 and the on / off valve 330 when the detected first pressure value exceeds the reference first pressure value range. An electrical signal may be transmitted to the on / off valve 340 to open the bypass pipe 350 to open the valve.

In addition, the controller 330 is electrically connected to the indicator 500 and the alarm generator 600. The indicator 500 may display the detected first temperature value and the first pressure value transmitted from the controller 330, and the alarm generator 600 may reference the detected first temperature value as a first reference. When the detected first pressure value exceeds the temperature value range and the reference first pressure value range is exceeded, an electrical signal may be transmitted from the controller 330 to generate an alarm.

Referring to FIG. 3, the high-temperature, high-pressure gaseous refrigerant flowing from the evaporator 210 flows to the second expander 240 through the first pipe 10.

At this time, the three-way valve opening and closing valve 340 to close the bypass pipe 350, and to flow the flow path between the first pipe 10 and the first expander 240 and the second pipe 20. .

Subsequently, the high-temperature, high-pressure gas refrigerant flowing into the second expander 240 undergoes heat exchange with the outside while passing through the second expander 240 having a radiator-like shape. Accordingly, the high temperature and high pressure gas refrigerant may be a low temperature low pressure gas refrigerant through the second expander 240.

At this time, the second expander 240 which is a radiator has a neck portion 240a as shown in FIG. 5. That is, the radiator 240 forms a conduit of a predetermined length, and a neck portion 240a having a cross-sectional area of the conduit formed at a predetermined level or less is formed at one or a plurality of positions of the conduit. Therefore, through the neck portion 240a, the gas refrigerant having a high temperature and high pressure is easily reduced in pressure and cooled by the pressure drop.

Subsequently, the gas refrigerant formed at low temperature and low pressure may flow to the second pipe 20.

At this time, the temperature sensor 310 installed in the second pipe 20 detects the first temperature value of the gas refrigerant and transmits it to the controller 330, and the pressure sensor 320 receives the first pressure value of the gas refrigerant. Detects and transmits to the controller 330.

The controller 330 determines whether the sensed first temperature value to be transmitted is included in a preset reference first temperature value, and the detected first pressure value corresponds to a preset reference first pressure value. Determine whether it is included. Here, the range of the reference first temperature value and the reference first pressure value is preferably a condition for achieving a desirable low temperature low pressure to be delivered to the compressor.

When the sensed first temperature value is included in the preset reference first temperature value and the sensed first pressure value is included in the preset reference first pressure value, bypass is performed using the on / off valve 340. The tube 350 is closed to allow the gas refrigerant to be delivered to the compressor 230 through the second tube 20.

If the detected first temperature value exceeds a preset reference first temperature value range and the detected first pressure value exceeds a preset reference first pressure value range, the second expander 240 passes. In the case where one gas refrigerant is not normally formed at low temperature and low pressure, the controller 330 opens the bypass pipe 350 using the on / off valve 340. At this time, the flow path to the second pipe 20 is closed. Therefore, the on-off valve 340 may be a three-way valve.

Therefore, the gas refrigerant may be guided to flow into the bypass pipe 350 and back to the first pipe 10 and to the second expander 240.

Accordingly, the monitoring unit 300 according to the present invention is a low temperature low pressure preferable when the high-temperature high-pressure gas refrigerant flowing in the first tube 10 flows to the second tube 20 through the second expander 240. It can be delivered to the compressor 230 to achieve a gas refrigerant of.

Therefore, it is possible to prevent the occurrence of abnormalities in the compressor 230 by passing the gas refrigerant that does not normally achieve low temperature and low pressure to the compressor 230.

Meanwhile, referring to FIG. 2, referring to the first tube 10, the second expander 240, the second tube 20, and the bypass tube 350 of FIG. 3, the first tube 10 is connected to the first tube 10. The first temperature sensor 310 may be installed, and the opening / closing valve 340 may be installed at a position where the first pipe 10 and the bypass pipe 350 branch.

In this case, the temperature of the gas delivered from the evaporator 210 is sensed by the first temperature sensor 310, and the detected first temperature value is transmitted to the controller 330.

The controller 330 is set a preferred low temperature reference temperature range. Here, when the first temperature value is a high temperature state exceeding the reference temperature value range, the controller 330 closes the bypass pipe 350 using the on / off valve 340. Therefore, the high temperature and high pressure allows the gas refrigerant to flow into the second pipe 20 through the second expander 240.

On the other hand, if the first temperature value is included in the reference temperature value range and the preferred low temperature state, the control unit 330 opens the bypass pipe 350 using the on-off valve 340. At this time, the flow path to the first tube 10 and the second expander 240 is closed.

 Accordingly, the low temperature low pressure gas refrigerant may be allowed to flow to the second tube 20 immediately through the bypass tube 350.

Here, although the above-mentioned first temperature sensor 310 refers to detecting the temperature of the gas, the temperature sensor 310 generates heat so as to directly detect the temperature of the water heated inside the heat generating device 100. It may be installed in the device 100. In this case, the reference temperature value range set in the controller 330 should be variably set.

On the other hand, referring to Figure 4, the cooling device of the present invention may further include an auxiliary monitoring unit 400. The auxiliary monitoring unit 400 has a characteristic of monitoring the conditions of the high temperature and high pressure gas refrigerant flowing to the second expander 240 side in the first pipe (10).

The auxiliary monitoring unit 400 is an auxiliary bypass pipe 450 for connecting the first pipe 10 and the second pipe 20 with each other, and the evaporator 210 is installed in the first pipe (10). Auxiliary temperature sensor 410 for detecting the second temperature value of the gas flowing from the) and the auxiliary pressure for detecting the second pressure value of the gas flowing in the evaporator 210 is installed in the first pipe (10) A sensor 420, an auxiliary opening and closing valve 440 for opening and closing the auxiliary bypass pipe 450, and the auxiliary temperature sensor 410 and the auxiliary pressure sensor 420 and the opening and closing valve 440 electrically A reference second temperature value range and a reference second pressure value range are set and the second temperature value detected by the auxiliary temperature sensor 410 is received so that the detected second temperature value is the reference second temperature value range. Is included in, and receives the second pressure value detected from the auxiliary pressure sensor 420 When the detected second pressure value is within the reference second pressure value range, an electrical signal is transmitted to the auxiliary on / off valve 440 to open the auxiliary on / off valve 440 to open the auxiliary bypass pipe 450. Has an auxiliary controller to deliver.

Referring to FIG. 4, the high temperature and high pressure gas refrigerant flowing from the evaporator 210 flows to the second expander 240 in the first pipe 10.

At this time, the auxiliary temperature sensor 410 installed in the first pipe 10 detects the second temperature value of the gas refrigerant flowing in the first pipe 10 and transmits it to the auxiliary controller 430, the auxiliary pressure sensor 420 detects the second pressure value flowing in the first pipe 10 and transmits it to the auxiliary controller 430.

Subsequently, the auxiliary controller 430 determines whether the detected second temperature value is included in the reference second temperature value range, and whether the detected second pressure value is included in the reference second pressure value range. Determine whether or not. Here, the reference second temperature value range and the reference second pressure value range may be a condition of preferable high temperature and high pressure of the gas refrigerant delivered to the second expander 240.

In this case, when the detected second temperature value is included in the reference second temperature value range and the detected second pressure value is included in the reference second pressure value range, a gas refrigerant in the first pipe 10 is preferable. In the case of high temperature and high pressure, the auxiliary controller 430 closes the auxiliary opening / closing valve 440 to connect the flow path between the first pipe 10 and the second expander 240 to each other so that the gas refrigerant is Flow to the second expander 240.

If the detected second temperature value is equal to or less than the reference second temperature value range, and the detected second pressure value is equal to or less than the reference second pressure value range, this is a condition of low temperature and low pressure transmitted to the compressor 230. In this case, the auxiliary controller 430 opens the auxiliary opening / closing valve 440 to connect the flow path between the first pipe 10 and the second pipe 20, and the first pipe 10 and the first pipe 10. The flow path to the two expanders 240 is closed. Here, the auxiliary on-off valve 440 is preferably a three-way valve.

Therefore, the auxiliary monitoring unit 400 in the present invention can monitor whether the high temperature and high pressure gas refrigerant flowing in the first pipe 10 achieves the desired high temperature and high pressure conditions.

Here, referring to FIG. 4, the monitoring unit 300 and the auxiliary monitoring unit 400 mentioned in the present invention may be selected and operated by the selector 700.

That is, the selector 700 may select one of the controller 330 or the auxiliary controller 440 to operate. In addition, the selector 700 may select the controller 330 and the auxiliary controller 430 to be operated at the same time.

In addition, the opening and closing valve 340 and the auxiliary opening and closing valve 440 mentioned above may be opened and closed by receiving an electrical signal from the controller 330 and the auxiliary controller 430, as well as open and close by applying a force from the outside. Can also be operated manually.

In addition, the controller 330 and the auxiliary controller 430 may be further electrically connected to the indicator 500 and the alarm generator 600.

The indicator 500 may display the detected first temperature value and the first pressure value transmitted from the controller 330 and the auxiliary controller 430, and the alarm generator 600 may detect the detected first temperature. When the temperature value exceeds the reference first temperature value range and the detected first pressure value exceeds the reference first pressure value range, an electric signal is transmitted from the controller 330 to generate an alarm, and the detected second temperature When the value is equal to or less than the reference second temperature value range and the sensed pressure value is equal to or less than the reference pressure value range, an alarm may be generated by receiving an electrical signal from the auxiliary controller 430.

On the other hand, the heat generating unit 100 in the present invention may be made integrally with the cooling unit 200.

In addition, the cooling unit 200 in the present invention may be coupled to the heat generating unit 100 detachably.

A portion of the body of the cooling unit 200 according to the present invention is detachably coupled with the heat generating portion of the heat generating unit 100.

Referring to FIG. 6, a sliding rail 110 is formed at one side of the heat generating unit 100, and a sliding groove slidingly coupled with the sliding rail 110 at one side of the main body 201 of the cooling unit 200 ( 202 is formed.

Accordingly, a portion of the heat generating unit 100 in which the sliding rail 110 is formed may be formed at a position at which heat is generated, and a portion of the cooling unit 200 in which the sliding groove 202 is formed may be an evaporator 210. It is good that is the part where is located.

Accordingly, the sliding rail 110 of the heat generating unit 100 is fitted into the sliding groove 202 of the cooling unit 200 may be detachably coupled to each other.

In addition, referring to FIG. 7, a hinge end 271 is formed at a corner of the main body 201 of the cooling unit 200, a fixing bar 273 is installed at the hinge end 271, and the fixing bar ( A magnet 274 is installed at the end of the 273, and a torsion spring 272 which holds the fixing bar 273 and the main body 201 of the cooling unit 200 is installed at the hinge end 271. The torsion spring 272 may guide the fixing bar 273 to rotate upward.

In addition, a coupling groove 170 into which the magnet 274 is inserted may be formed at the side of the heat generating unit 100. Here, the heat generating unit 100 is formed of a metal frame. Accordingly, the magnets 274 may be coupled to each other due to the generation of attraction force while being inserted into the coupling groove 170.

In addition, when the edge of the heat generating unit 100 is made of a non-metal, as shown in Figure 8 the metal body 171 to be coupled to each other by the magnet 274 and the attraction force in the coupling groove 170 as shown in FIG. It may be provided further.

Accordingly, the main body 201 of the cooling unit 200 and the heat generating unit 100 positioned at the upper end thereof have a magnet 274 installed in the fixing bar 273 inserted into the coupling groove 170 as described above. By being combined can be detachably coupled to each other.

As described above, in the detailed description of the present invention has been described with respect to preferred embodiments of the present invention, those skilled in the art to which the present invention pertains various modifications without departing from the scope of the present invention Of course it is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below, but also by the equivalents of the claims.

1 is a view schematically showing a configuration of a cooling device of the present invention.

2 is another view showing the cooling device of the present invention.

Figure 3 is a view showing the connection between the vicinity of the second expander and the monitoring unit according to the present invention.

4 is a view illustrating a connection relationship between a second expander and a monitoring unit and an auxiliary monitoring unit according to the present invention.

5 is a cross-sectional view showing a partial cross section of a second expander according to the present invention.

6 is a cross-sectional view showing a first example of a detachable configuration of a heat generating unit and a cooling device according to the present invention.

7 is a cross-sectional view showing a second example of the detachable configuration of the heat generating unit and the cooling device according to the present invention.

8 is a partial cross-sectional view showing that the metal plate is further installed in the coupling groove of FIG.

** Description of Drawings for Main Parts **

100: heat generating unit 200: cooling unit

210: evaporator 220: first expander

230: compressor 240: second expander

250: condenser 251: cooling fan

300: monitoring unit 400: auxiliary monitoring unit

500: indicator 600: alarm generator

700: selector

Claims (9)

A heat generating unit generating heat above a predetermined temperature; And A cooling unit for expanding the evaporated refrigerant in multiple to lower the predetermined pressure and temperature, and to cool the heat generating unit to a predetermined temperature, The cooling unit, A main body connected to the heat generating unit, a compressor installed in the main body to compress a refrigerant, which is a gas, into a liquefied state, a condenser connected to the compressor and condensing the gas received from the compressor into a medium temperature high pressure liquid; And a first expander connected to the condenser to form a liquid of low temperature and low pressure, and a medium expandable liquid connected to the first expander to form the low temperature low pressure liquid with a low temperature and low pressure gas to form the heat generating unit at a predetermined temperature. And an evaporator connected to the evaporator, and a second expander connected to the evaporator to expand the high temperature and high pressure gas that has passed through the evaporator to form a low temperature and low pressure gas. delete The method of claim 1, The second expander is a radiator characterized in that one end of the second expander is connected to the evaporator and the first tube and the other end of the second expander is connected to the compressor and the second tube. The method of claim 3, wherein The cooling device further includes a monitoring unit, The monitoring unit is installed in the second pipe and the temperature sensor for detecting the first temperature value of the gas flowing into the second pipe, the bypass pipe for connecting the first pipe and the second pipe with each other, from the outside An opening / closing valve for opening the bypass tube by receiving an electrical signal, and electrically connected to the temperature sensor and the opening / closing valve, and receiving a first temperature value detected by the temperature sensor, the first reference temperature range being set. And a controller for transmitting an electrical signal to the on / off valve to open the on / off valve to open the bypass pipe when the sensed first temperature value exceeds the reference first temperature value range. . The method of claim 4, wherein The second pipe is further provided with a pressure sensor for detecting the first pressure value of the gas flowing into the second pipe to transmit the detected first pressure value to the controller, The controller receives the first pressure value detected from the pressure sensor and opens and closes the on / off valve to open the bypass pipe when the detected first pressure value exceeds the reference first pressure value range. Cooling apparatus for transmitting an electrical signal to the. The method of claim 5, The cooling device further includes an auxiliary monitoring unit for checking the temperature and pressure of the gas flowing into the first pipe, The auxiliary monitoring unit, An auxiliary bypass pipe connecting the first pipe and the second pipe to each other; an auxiliary temperature sensor installed at the first pipe to sense a second temperature value of the gas flowing from the evaporator; An auxiliary pressure sensor installed to sense a second pressure value of the gas flowing from the evaporator, an auxiliary opening / closing valve for opening and closing the auxiliary bypass pipe, and an electrical connection with the auxiliary temperature sensor and the auxiliary pressure sensor and the opening / closing valve. A reference second temperature value range and a reference second pressure value range are set, the second temperature value detected by the auxiliary temperature sensor is received, and the detected second temperature value is included in the reference second temperature value range; The auxiliary opening / closing valve is opened when the second pressure value received from the auxiliary pressure sensor is received and the detected second pressure value is within the reference second pressure value range. The cooling device comprising the auxiliary controller to open the secondary bypass tube transmits the electrical signals to the auxiliary switching valve. The method of claim 3, wherein The radiator forms a conduit of a predetermined length, the cooling device, characterized in that the neck portion is formed in one or more locations of the conduit having a certain cross-sectional area of the conduit is less than a constant. The method of claim 6, And the controller and the auxiliary controller are further electrically connected to a selector capable of selecting any one of the controller and the auxiliary controller. The method of claim 1, The heat generating unit, Cooling apparatus characterized in that the microbial culture apparatus for culturing the microorganisms by supplying the culture water to the culture tank and then heating the culture water to a predetermined temperature for sterilization treatment.

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