JP3590607B2 - Absorption type cold / hot water equipment - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an absorption-type hot / cold water apparatus.
[Prior art]
[0002]
In the absorption chiller / heater, the equipment main body including the vessel and piping is assembled by welding all the components to maintain the inside of the equipment at a high vacuum, and then as a refrigerant, highly corrosive lithium bromide ( Although it is filled with an aqueous solution such as LiBr), if the inside of the vessel is corroded and red rust is generated, the vacuum inside the vessel is reduced due to the generation of hydrogen gas based on a chemical reaction at that time.
[0003]
When the vacuum in the vessel is reduced, various troubles such as a decrease in cooling capacity, overheating of the high-temperature regenerator (GPL operation), crystallization, etc. are caused. It was impossible to completely suppress the generation of gas, and it was extremely difficult to prevent a trouble caused by a reduction in vacuum due to the generation of hydrogen gas.
[0004]
[Problems to be solved by the invention]
The present invention has been devised to solve this problem in view of the above-described conventional absorption-type cooling and heating water apparatus, and does not generate red rust in the vessel and reduces vacuum due to generation of hydrogen gas. It is an object of the present invention to provide an absorption-type cooling / heating water device having a novel structure capable of suppressing the occurrence of water.
[0005]
[Means for Solving the Problems]
The configuration of the present invention for achieving the above object will be described with reference to an embodiment.The absorption-type cooling and heating water device of the present invention maintains the inside of the vessel at a high vacuum, and then uses lithium bromide or the like as a refrigerant. In an absorption-type cold / hot water device filled with an aqueous solution, a magnetized water treatment device is interposed at an arbitrary portion in a pipe, or a magnet, an electromagnetic coil, or the like is provided and wound around an arbitrary portion of the pipe. The magnetic field A is formed and arranged by the same method, and the aqueous solution is treated with magnetized water.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described based on examples with reference to the drawings.
[0007]
【Example】
FIG. 1 is an explanatory diagram of an apparatus configuration showing one embodiment of the present invention.
[0008]
Referring to FIG. 1, the cooling cycle in the absorption type cooling and heating water apparatus will be described. When the high-temperature regenerator 1 is heated by the burner 2, the dilute solution in the high-temperature regenerator 1 is heated and boiled, and the high-temperature refrigerant vapor and the high-temperature concentrated solution are heated. Is generated, rises the liquid pumping pipe 3 based on the principle of the thermal bubble pump, and is separated into the refrigerant vapor and the high-temperature concentrated solution by the first separator 4.
[0009]
The separated high-temperature refrigerant vapor passes through the coil of the low-temperature regenerator 5 and heats and boiles the intermediate concentrated solution with the heat of condensation, thereby generating the refrigerant vapor and the low-temperature concentrated solution, and condensing the refrigerant water. And enters the condenser 6.
[0010]
The refrigerant vapor and the low-temperature concentrated solution generated in the low-temperature regenerator 5 are separated by the second separator. The separated refrigerant vapor enters the condenser 6, is cooled by the cooling water circulating in the condenser coil, and is condensed into refrigerant water. Part of the refrigerant water is stored in the refrigerant storage chamber 8 and enters the evaporator 10 via the refrigerant proportional valve 9. Further, the remaining refrigerant water enters the evaporator 10 through the refrigerant pipe 11.
[0011]
The refrigerant water that has entered the evaporator 10 is uniformly dropped on the coil surface of the evaporator 10, evaporates at a low temperature under a high vacuum, and removes latent heat of evaporation by circulating water in the coil of the evaporator 10 to remove cold water. produce.
[0012]
On the other hand, the high-temperature concentrated solution separated by the first separator 4 enters the high-temperature heat exchanger 13 through the high-temperature concentrated solution descending pipe 12, and exchanges heat with the dilute solution to lower the temperature. Further, the high-temperature concentrated solution and the dilute solution are mixed at the outlet to become an intermediate-concentrated solution, and ascend the intermediate-concentrated solution riser pipe 14 to enter the low-temperature regenerator 5.
[0013]
In the low-temperature regenerator 5, the intermediate concentrated solution is heated and boiled by the high-temperature refrigerant vapor passing through the coil of the low-temperature regenerator 5, and separated into the refrigerant vapor and the low-temperature concentrated solution in the second separator 7.
[0014]
The separated low-temperature concentrated solution enters the low-temperature heat exchanger 16 through the low-temperature concentrated solution downcomer 15, exchanges heat with one of the dilute solutions to lower the temperature, and then enters the absorber 18 through the low-temperature concentrated solution ascending tube 17. .
[0015]
The low-temperature concentrated solution is uniformly dropped on the coil of the absorber 18, immediately absorbs the refrigerant vapor evaporated by the evaporator 10, maintains a high vacuum state, and absorbs the refrigerant vapor to become a dilute solution. In the absorber 18, heat of absorption is generated when the concentrated solution absorbs the refrigerant vapor, and cooling water is circulated in the coil of the absorber 18 to cool.
[0016]
The dilute solution passes through the dilute solution down pipe 20 by the solution circulation pump 19 and exchanges heat with the low-temperature concentrated solution by the low-temperature heat exchanger 16. At the outlet of the low-temperature heat exchanger 16, the dilute solution is divided into two parts, one of which passes through the dilute solution bypass pipe 21 and joins with the high-temperature concentrated solution to become an intermediate concentrated solution, and rises up the intermediate concentrated solution rising pipe 14. The other dilute solution exchanges heat with the high-temperature concentrated solution in the high-temperature heat exchanger 13 to increase the temperature, and enters the high-temperature regenerator 1 through the high-temperature regenerator return pipe 22.
[0017]
The diluted solution returned to the high-temperature regenerator 1 is heated by the burner 2 and repeats a double effect cycle.
[0018]
Next, a heating cycle in the absorption chiller / heater will be described. When the high temperature regenerator 1 is heated by the burner 2, the dilute solution in the high temperature regenerator 1 is heated and boiled to generate a high temperature refrigerant vapor and a high temperature concentrated solution. The lifting pipe 3 is raised by the principle of a thermal bubble pump.
[0019]
The high-temperature refrigerant vapor passes through the cooling / heating switching valve 23 from the first separator 4 and directly reaches the vaporizer 10, where the circulating water flowing in the coil of the vaporizer 10 is directly heated by the high-temperature refrigerant vapor to convert the hot water. produce.
[0020]
The refrigerant vapor condenses to water and mixes with the concentrated solution to form a dilute solution. The diluted solution passes through the low-temperature heat exchanger 16 and the high-temperature heat exchanger 13 by the solution circulation pump 19 and returns to the high-temperature regenerator 1. The diluted solution returned to the high-temperature regenerator is heated by the burner 2, and the above-described heating cycle is repeated.
[0021]
A magnetic field A is formed and arranged in an arbitrary portion of the piping and a pipe through which the diluent flows, such as the diluent downcomer 20, in the absorption type hot / cold water system having the cooling cycle and the heating cycle as described above. Is configured to perform a magnetized water treatment. Means for forming and arranging the magnetic field A may be a magnetized water treatment device provided in a pipe, a magnet, an electromagnetic coil or the like provided around an arbitrary portion of the pipe, or wound around the pipe. Often, the specific configuration is not limited.
[0022]
When the diluted liquid is configured to be treated with magnetized water, red rust generated inside the pipe is changed to magnetite (Fe3O4 magnetite) to suppress the generation of red water and to form a magnetite protective film on the inner wall of the pipe to prevent corrosion. Then, by the rust prevention and rust removing action, it is possible to suppress the generation of red rust in the vessel and the reduction in vacuum due to the generation of hydrogen gas based on the rust.
[0023]
【The invention's effect】
As described above, the present invention does not generate red rust in the vessel and can suppress the vacuum drop due to the generation of hydrogen gas. An excellent effect that can maintain the expected performance over a wide range is obtained.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of an apparatus configuration showing one embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 High temperature regenerator 2 Burner 3 Pumping line 4 First separation tube 5 Low temperature regenerator 6 Condenser 7 Second separator 8 Refrigerant storage 9 Refrigerant proportional valve 10 Evaporator 11 Refrigerant tube 12 High temperature concentrated solution downcomer 13 High temperature heat Exchanger 14 Intermediate concentrated solution riser 15 Low temperature concentrated solution downcomer 16 Low temperature heat exchanger 17 Low temperature concentrated solution riser 18 Absorption tube 19 Solution circulation pump 20 Dilute solution downcomer 21 Dilute solution bypass tube 22 High temperature regenerator return tube A Magnetic field

Claims (1)

In an absorption-type cold / hot water device that is filled with an aqueous solution of lithium bromide or the like as a refrigerant after maintaining the inside of the vessel at a high vacuum , a solution circulation pump is provided in a pipe downstream of the absorber that absorbs the refrigerant into the aqueous solution. In the pipe between the solution circulation pump and the absorber, a magnetized water treatment device is interposed, or a magnetic field A is formed and disposed around the magnet, an electromagnetic coil, etc. An absorption-type cold / hot water apparatus characterized in that an aqueous solution is treated with magnetized water.

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