KR100760018B1 - Gas removal method and gas removal device of cooling and heating water - Google Patents

Abstract

A device and a method for eliminating gas from cooling and heating water is provided to prevent air locking and corrosion of a pipe by installing a heating unit in an expansion tank and heating up cooling and heating water. A device for eliminating gas from cooling and heating water comprises a cooling/heating circulation system, an expansion tank(20), an intake pipe(32), a heating unit(40), a gas eliminating valve(80), and a discharge pipe(34). The expansion tank stores cooling and heating water. The intake pipe is connected with the cooling/heating circulation system and induces cooling and heating water from the cooling/heating circulation system to the expansion tank. The heating unit heats up cooling and heating water stored in the expansion tank. The gas is separated from the cooling and heating water in the expansion tank. The gas eliminating valve discharges the separated gas. The discharge pipe supplies cooling and heating water from the expansion tank to the cooling/heating circulation system.

Description

GAS REMOVAL METHOD AND GAS REMOVAL DEVICE OF COOLING AND HEATING WATER}

1 is a view showing the technical concept of the gas removal apparatus of the heating and cooling water according to the present invention,

Figure 2 is a flow chart for explaining a gas removal method of heating and cooling water according to a preferred embodiment of the present invention,

3 is a front view of a gas removing apparatus for heating and cooling water according to a preferred embodiment of the present invention;

Figure 4 is a plan view of a gas removal device for heating and cooling according to a preferred embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: degassing device for cooling and heating water 20: expansion tank

30: cooling and heating circulation system 32: suction pipe

34: discharge pipe 40: heating unit

50: rod heater 52: heating unit

60: temperature sensor 70: controller

80: gas removal valve

The present invention relates to a method and apparatus for removing gas of cooling and heating water, and more specifically, to a cooling and heating circulation system using cooling and heating water for cooling and heating, for heating and cooling to remove gas from cooling and cooling water in the cooling and heating circulation system. It relates to a water degassing device.

If the air is different in the piping of the heating and cooling circulation system, the life of the pipe is shortened by corrosion and erosion, vibrations and noises occur, and air locking occurs. For this reason, air-conditioning circulation system is used for the gas removal device of the heating and cooling water.

In general, a gas removal device for cooling and heating water is a device for controlling the cooling and heating water to maintain the pressure of the piping system within a certain range, and remove the air in the pipe by the degassing function.

Republic of Korea Patent Registration No. 10-0370603 "Gas removal device for heating and cooling pipes" consists of a gas removal device with a compact control device and an expansion tank for expanding and discharging the gas present in the water and these devices are modular It is suggested to be assembled.

Such a configuration enables simple limestone removal or debris removal in the pipe, but does not effectively remove the gas of the heating and cooling water. That is, according to this technique, the gas of the air-conditioning water is degassed simply by separating from the water particles in the vacuum atmosphere. However, in practice, the cooling and heating water flowing into the expansion tank is not sprayed effectively, so that water particles and gas are not separated well.

Therefore, the present invention has been proposed to improve such a conventional problem, and to provide a method and apparatus for removing a gas of cooling and heating water of a new type that can effectively separate the gas from the heating and cooling water to increase the degassing efficiency. In particular, the present invention is to provide a method and apparatus for removing a gas of the heating and cooling water of a new type to configure the heating unit in the expansion tank, to minimize the dissolved oxygen of the cooling and heating water by heating the received heating and cooling water in the expansion tank.

According to a feature of the present invention for achieving the above object, the present invention is connected to a cooling and heating circulation system using the cooling and heating water for cooling and heating air-conditioning for removing the gas of cooling and heating water circulated in the air-conditioning circulation system Claims [1] A gas removal apparatus comprising: an expansion tank (20) for receiving cooling and heating water; A suction pipe (32) connected to the air-conditioning circulation system (30) to allow cooling / heating water to flow from the air-conditioning circulation system (30) to the expansion tank (20); A heating unit 40 for heating the heating and cooling water accommodated in the expansion tank 20; A gas removal valve (80) for discharging the gas separated from the cooling / heating water to the outside in the expansion tank (20); It includes a discharge pipe 34 for supplying the cooling and cooling water in the expansion tank 20 to the cooling and heating circulation system (30).

In such a cooling and heating gas removal device, the heating unit 40 is provided with a rod heater 50 having a rod-shaped heating unit 52, the heating unit 52 of the rod heater 50 is It is characterized in that the installation is inserted inward from the bottom of the expansion tank (20).

In the air-conditioning and degassing device, the heating unit 40 receives a temperature sensor 60 for detecting the temperature of the air-conditioning water and a detection value of the temperature sensor 60 to receive the rod heater 50. It further comprises a controller 70 for controlling the heating temperature, characterized in that for controlling the heating temperature of the temperature sensor 60 and the controller 70.

In the air-conditioning gas removal method for removing the gas of the air-conditioning and cooling water circulated in the air-conditioning circulation system connected to an air-conditioning circulation system using air-conditioning water for cooling and heating, the air-conditioning circulation system 30 The cooling and heating water is introduced into the expansion tank (20), and the heating and cooling water accommodated in the expansion tank 20 is characterized in that the cooling and cooling water gas is removed and then supplied to the cooling and heating circulation system (30).

As described above, in the gas heating and cooling method, the heating and heating of the cooling and heating water is performed by inserting the rod heater 50 having the rod-shaped heating part 52 into the expansion tank 20 and installing the rod heater 50. The heating unit 52 is characterized in that it is heated in the state immersed in the heating and cooling water.

As described above, in the method of removing the heating / cooling gas, the heating of the heating / cooling water is input to a temperature sensor (60) for detecting the temperature of the heating / cooling water to be heated, and a detection value of the temperature sensor (60) to receive the rod heater (50). By the controller 70 for controlling the heating temperature of the) is characterized in that the heating temperature of the heating and cooling water is made at the temperature set in the controller 70.

1 is a view showing the technical idea of the gas removal device of the cooling and heating water according to the present invention.

Referring to FIG. 1, the gas removing apparatus for cooling and heating water according to the present invention is connected to an expansion tank (20) for receiving cooling and heating water, and the cooling and heating circulation system (30) to the expansion and cooling system (20) for the cooling and heating circulation system. A suction pipe 32 through which the cooling and heating water flows from the 30, a heating unit 40 for heating the cooling and heating water contained in the expansion tank 20, and a gas separated from the cooling and heating water in the expansion tank 20. It is provided with a gas removal valve 80 for discharging the outside and the discharge pipe 34 for supplying the cooling and heating water in the expansion tank 20 to the cooling and heating circulation system (30).

Degassing device of the cooling and heating water according to the present invention is discharged to the cooling and heating circulation system 30 through the discharge pipe 34, the cooling and cooling water system in the expansion and cooling system 30, the level of the received cooling and cooling water in the expansion tank 20 is lowered The expansion tank 20 is in a vacuum state. When the cooling and heating water flows into the expansion tank 20 in the vacuum state through the suction pipe 32 connected to the cooling and heating circulation system 30, the water level in the expansion tank 20 is increased, and the heating and cooling water through decomposition and heating. Since the pressure in the expansion tank 20 is increased due to the gas separated from the gas, the gas removal valve 80 is opened so that the gas in the expansion tank 20 is discharged to the outside. By repeatedly performing such a process, the air of the heating / cooling water circulated in the air-conditioning circulation system 30 is effectively removed.

In this way, since the heating and cooling water flowing into and in the expansion tank is heated by the heating unit, the heating and cooling water degassing device removes the gas by lowering the dissolved oxygen of the cooling and heating water by heating together with the separation of the gas by vacuum. This will maximize the gas removal efficiency.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, FIGS. 2 to 4, and the same reference numerals are used for components which perform the same function in FIGS. 2 to 4. Meanwhile, in the drawings, detailed descriptions and detailed descriptions of technical contents, such as a general air-conditioning and circulation system, are provided to those skilled in the art, so that the descriptions are briefly omitted or omitted, and the parts related to the present invention are illustrated.

Figure 2 is a flow chart for explaining the gas removal method of cooling and heating water according to a preferred embodiment of the present invention.

Referring to Figure 2, the gas removal method of cooling and heating water according to a preferred embodiment of the present invention, as shown in Figure 1 expansion tank 20, suction tube 32, heating unit 40, gas removal valve 80 And it is made by applying the gas removal device 10 of the heating and cooling water having a discharge pipe (34). Basically, the gas removal method of cooling and heating water according to the present invention is to increase the removal effect of the gas by lowering the dissolved oxygen of the cooling and heating water by heating the heating and cooling water received in the expansion tank (20).

According to a preferred embodiment of the present invention, a method for removing gas of cooling and heating water is provided in the expansion tank (20) when the cooling and heating water circulated in the cooling / heating circulation system (30) flows into the expansion tank (20). It is heated by, and when the heated heating and cooling water reaches a predetermined temperature is characterized in that to be supplied to the cooling and heating circulation system (30).

On the other hand, if the temperature of the heating and cooling water does not reach the preset temperature is controlled by the controller 70 to continue heating the heating and cooling water and when the predetermined temperature is reached to supply to the heating and cooling circulation system. In general, tap water having a chlorine content of 25 (‰) and a salt concentration of 45.2 (‰) is known to have a dissolved oxygen amount of 6.96 (ppm) at 20 ° C and 4.72 (ppm) at 45 ° C. And it is known that the amount of dissolved oxygen is the minimum at about 60 ℃. Therefore, in the preferred embodiment of the present invention is heated to about 60 ℃ to minimize the amount of dissolved oxygen of the heating and cooling water.

On the other hand, the heating and cooling water accommodated in the expansion tank 20 is heated by the heating unit 40, the gas is separated, the separated gas is discharged to the outside by the gas removal valve (80).

3 is a front view of the gas removal apparatus for heating and cooling water according to a preferred embodiment of the present invention, Figure 4 is a plan view of the gas removal apparatus for heating and cooling water according to a preferred embodiment of the present invention.

3 and 4, the gas removal apparatus 10 for cooling and heating according to a preferred embodiment of the present invention is an expansion tank 20, suction pipe 32, pressure control valve 1, heating unit 40 ), A gas removal valve 80, a discharge pipe 34, a pressure control valve (1), a water level sensor (3) and a vacuum crush valve (5).

On the other hand, the suction pipe 32 is connected to the air conditioning circulation system 30 is a pipe in which the cooling and heating water flows from the air conditioning circulation system 30 to the expansion tank (20).

The pressure regulating valve 1 is a valve for adjusting the ejection pressure of the cooling and heating water ejected from the suction pipe 32 when the cooling and heating water is introduced into the expansion tank 20 through the suction pipe (32).

Meanwhile, the heating unit 40 includes a rod heater 50 having a rod-shaped heating unit 52, and the heating unit 52 of the rod heater 50 is inserted into the bottom of the expansion tank 20 and installed inward. do. The rod heater 50 is a liquid or air heating heater that can be used directly by heating the heating element to be heated, unlike indirect heat can be obtained 100% thermal efficiency and has a feature that is easy to attach even in narrow places. In addition, it is designed to attach a thermostat, so there is no fear of damage to the container due to overheating or shortening the life of the heating element. Therefore, by installing the rod heater in the gas removal apparatus for air conditioning and heating according to a preferred embodiment of the present invention to heat the temperature of the cooling and heating water, the temperature of the cooling and heating water is raised to have a great effect in separating the heating and cooling water and gas.

In addition, the heating unit 40 is further provided with a temperature sensor 60 and the controller 70. The temperature sensor 60 detects the temperature when heating the heating / cooling water introduced into the expansion tank 20 through the suction pipe 32. The controller 70 receives the detection value of the temperature sensor 60 and supplies the cooling / heating water to the cooling / heating circulation system 30 when the preset temperature is reached. At this time, if the heated heating and cooling water does not reach the preset temperature, it controls to heat the cooling and heating water until the set temperature is reached without discharging the cooling and heating water. Therefore, the heating unit is installed in the air-conditioning and degassing apparatus according to the preferred embodiment of the present invention to detect the temperature of the air-conditioning water by the temperature sensor provided in the heating unit, and the controller receives the value detected by the temperature sensor By configuring the system to be controlled automatically, the user can be controlled automatically.

The gas removal valve 80 serves to discharge the separated gas to the outside while being heated in the expansion tank 20.

The discharge pipe 34 is a pipe to allow the cooling and heating water separated from the gas in the expansion tank 20 to be supplied to the cooling and heating circulation system 30.

The vacuum crushing valve 5 is installed on the upper side of the expansion tank 20 and operates only when the cooling / heating water heated by the heating unit 40 is supplied to the cooling / heating circulation system 30.

The water level sensor 3 functions to detect the water level of the heating and cooling water accommodated in the expansion tank (20).

Meanwhile, the level gauge 2 is installed vertically on the outer surface of the expansion tank 20 so as to check the level of the received cooling and heating water in the expansion tank 20, and when the water in the expansion tank 20 is insufficient, the supplementary water pipe 36 Open to maintain the water supply state of the cooling and heating circulation system 30 more than a certain time at all times. And when the amount of cooling and heating water more than the effective capacity is introduced to the level of the expansion tank 20 rises above the highest level, the water level sensor 3 is automatically controlled to a certain amount of cooling and heating water. Therefore, it can be used relatively safely even when driving temporarily out of design condition.

Such a gas removal device for heating and cooling water according to a preferred embodiment of the present invention is provided with a cleaning material hole (4) for cleaning deposits in the expansion tank (20) in addition to the above-described configuration, the pipe life of the heating and cooling circulation system It is effective in prolonging corrosion and preventing corrosion and erosion.

In the apparatus for removing heating and cooling water according to a preferred embodiment of the present invention, the cooling and heating water flowing into the expansion tank in a vacuum state is separated from the gas, and at the same time, the heating and cooling water is heated by the heating unit, thereby dissolving dissolved oxygen in the heating and cooling water. Can be minimized. Therefore, the air-conditioning and cooling water circulated in the air-conditioning circulation system effectively separates and circulates the gas, thereby preventing corrosion and erosion of the piping in the air-conditioning circulation system, extending the life of the pipe, reducing vibration and noise, and eliminating the air locking phenomenon. Can kill.

Looking at the operation of the gas heating device 10 of the cooling and heating water according to a preferred embodiment of the present invention having such a configuration, first, the cooling and heating water is expanded tank (through the suction pipe 32 connected to the cooling and heating circulation system 30) 20). At this time, the cooling and heating water flowing into the expansion tank 20 is controlled by the pressure control valve (1). Cooling and heating water is separated from the gas when the amount of the ejected by the pressure control valve (1) is adjusted to flow into the expansion tank (20). At the same time, the cooling and heating water introduced and received through the suction pipe 32 is heated by the heating unit 40. The cooling and heating water heated by the heating unit 40 is supplied to the cooling and heating circulation system 30 through the discharge pipe 34. At this time, when the cooling and heating water heated by the heating unit 40 is supplied to the cooling and heating circulation system 30 in the expansion tank 20, the inside of the expansion tank 20 is vacuum state of 150 mmHG by the vacuum crush valve (5). Will be maintained. At this time, the gas is discharged to the outside through the gas removal valve (80).

As described above, the gas removal apparatus for cooling and heating water according to a preferred embodiment of the present invention has been shown in accordance with the above description and drawings, but this is only an example and various modifications are made without departing from the technical spirit of the present invention. It will be appreciated by those skilled in the art that changes and variations are possible.

As described above, according to the present invention, the heating unit is installed in the expansion tank to heat the heating and cooling water, thereby effectively separating the cooling and heating water and the gas, thereby increasing the degassing efficiency, thereby minimizing the dissolved oxygen dissolved in the cooling and heating water. . In addition, it prevents corrosion and erosion of pipes of air conditioning and circulation circulation system to extend the service life of pipes, reduce vibration and noise, and solve the air locking phenomenon.

Claims (6)

In the air-conditioning gas removal device for removing the gas of the air-conditioning and cooling water circulated in the air-conditioning circulation system connected to the air-conditioning circulation system using air-conditioning water for cooling and heating, Expansion tank 20 for receiving the heating and cooling water; A suction pipe (32) connected to the air-conditioning circulation system (30) to allow cooling / heating water to flow from the air-conditioning circulation system (30) to the expansion tank (20); A heating unit 40 for heating the heating and cooling water accommodated in the expansion tank 20; A gas removal valve (80) for discharging the gas separated from the cooling / heating water to the outside in the expansion tank (20); Apparatus for removing the heating and cooling water gas in the expansion tank (20) comprising a discharge pipe (34) for supplying the cooling and heating circulation system (30). The method of claim 1, The heating unit 40 includes a rod heater 50 having a rod-shaped heating unit 52, and the heating unit 52 of the rod heater 50 is inserted inward from the bottom of the expansion tank 20. Gas removal device for heating and cooling water, characterized in that the installation. The method of claim 2, The heating unit 40 receives a temperature sensor 60 for detecting a temperature of cooling and heating water and a controller 70 for controlling a heating temperature of the rod heater 50 by receiving a detection value of the temperature sensor 60. Further provided, the heating and cooling gas degassing apparatus, characterized in that for controlling the heating temperature of the temperature sensor (60) and the controller (70). In the air-conditioning gas removal method for removing the gas of the air-conditioning and cooling water circulated in the air-conditioning circulation system connected to the air-conditioning circulation system using the air-conditioning water for cooling and heating, Cooling and cooling water circulated in the cooling and heating circulation system 30 is introduced into the expansion tank 20, and heating and cooling water contained in the expansion tank 20 to remove the gas of cooling and heating water after the cooling and heating circulation system (30) Gas removal method of heating and cooling water, characterized in that to be supplied to. The method of claim 4, wherein The heating and cooling of the heating and cooling water is installed by inserting the rod heater 50 having the rod-shaped heating portion 52 into the expansion tank 20, so that the heating portion 52 of the rod heater 50 is heated to the cooling and heating water. Method for removing gas of heating and cooling water, characterized in that the heating in the submerged state. The method of claim 5, The heating of the heating and cooling water is a temperature sensor 60 for detecting the temperature of the heating and cooling water to be heated, a controller 70 for controlling the heating temperature of the rod heater 50 by receiving the detection value of the temperature sensor 60 The heating and cooling water by the heating method according to the gas removal method of the heating and cooling water, characterized in that to be carried out at a predetermined temperature of the controller (70).

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