CN112443992A - Anticorrosive cooling water set - Google Patents

Anticorrosive cooling water set Download PDF

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Publication number
CN112443992A
CN112443992A CN201910794579.6A CN201910794579A CN112443992A CN 112443992 A CN112443992 A CN 112443992A CN 201910794579 A CN201910794579 A CN 201910794579A CN 112443992 A CN112443992 A CN 112443992A
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CN
China
Prior art keywords
corrosion
water chilling
chilling unit
shell
gas
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Pending
Application number
CN201910794579.6A
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Chinese (zh)
Inventor
卢文志
钟琪
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Sanhe Refrigerator Guangzhou Co ltd
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Sanhe Refrigerator Guangzhou Co ltd
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Priority to CN201910794579.6A priority Critical patent/CN112443992A/en
Publication of CN112443992A publication Critical patent/CN112443992A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00Compression machines, plants or systems with non-reversible cycle
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23FNON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F15/00Other methods of preventing corrosion or incrustation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06Controlling, e.g. regulating, parameters of gas supply
    • F26B21/08Humidity

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Air Conditioning Control Device (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The invention provides an anti-corrosion water chilling unit which comprises a machine shell and an anti-corrosion system. The corrosion prevention system comprises a drying module, a corrosion removal module, a detection module and a control module. The drying module comprises a preset number of filtering and drying devices and a gas storage device which are arranged in the shell, and the filtering and drying devices are also connected with a branch of a gas outlet pipeline of the compressor through a gas supply pipeline; when the compressor works, compressed gas enters the gas storage device after being filtered and dried by the filtering and drying device, the gas in the gas storage device is supplied for use through the gas supply pipeline, and when the water chilling unit stops working, the dry gas sweeps the inside of the stopped water chilling unit. The dry air continuously sweeps the water chilling unit which stops working, so that the interior of the water chilling unit which stops working is kept dry, and the problem that the service life of equipment (the water chilling unit) is influenced by excessive contact of water and corrosion of the water chilling unit which stops working is avoided.

Description

Anticorrosive cooling water set
Technical Field
The invention relates to the technical field of anticorrosion electricity, in particular to an anticorrosion water chilling unit.
Background
At present, a water chilling unit is taken as a tool for adjusting human family living environment and becomes a necessary electric appliance, but refrigeration and heating are also needed in the environments of petrochemical industry, medical food, offshore oil platforms, aerospace engineering, military industry and the like, along with the improvement of social security awareness, the continuous rise of productivity, the marketization and scale of high-precision products, the requirements of the industries on temperature and humidity control are increasingly strict, but in the important industrial departments, due to the fact that corrosive gas may exist in the production places, if a common water chilling unit is adopted, the water chilling unit can corrode parts of the water chilling unit for a long time, and serious consequences of equipment damage are caused.
The invention patent with Chinese patent application number CN201721386708.0 discloses a water chilling unit, which comprises: the system comprises a compressor, a condenser, a primary throttling device, a flash tank, a secondary throttling device and an evaporator; the flash evaporator is provided with an inlet, a gaseous outlet and a liquid outlet, and a liquid pipe capable of exchanging heat with gaseous refrigerant is arranged in the evaporator; the liquid tube has an inlet end and an outlet end; the compressor, the condenser and the primary throttling device are connected to an inlet of the flash tank through pipelines; meanwhile, a liquid outlet of the flash evaporator is connected with an inlet end of the liquid pipe through a pipeline, and an outlet end of the liquid pipe is sequentially communicated with the secondary throttling device, the evaporator and the compressor through pipelines to form a secondary compression refrigeration cycle. The water chilling unit provided by the invention can effectively improve the condition of liquid carrying in the air suction of the compressor and improve the load performance. The invention does not include structures or modules how to protect against corrosion. Therefore, the method is only suitable for domestic environments and is not suitable for environments such as petrochemical industry, medical food, offshore oil platforms, aerospace engineering, military industry and the like.
Disclosure of Invention
The invention aims to solve the technical problem that parts are easy to corrode due to the existence of acidic substances in parts in a water chilling unit, and provides an anti-corrosion water chilling unit which effectively controls few dry corrosive substances in the water chilling unit and has the advantages of safety and reliability.
An anticorrosion water chilling unit comprises a machine shell, a refrigerating system and an anticorrosion system connected with the refrigerating system; the refrigeration system is arranged in the shell and consists of a compressor, a shell-and-tube condenser, a shell-and-tube evaporator, an electric cabinet, a thermostatic expansion valve and a pipeline unit; the anti-corrosion system comprises a drying module, a corrosion removal module, a detection module and a control module, wherein the drying module comprises a preset number of filtering and drying devices and a gas storage device which are arranged in the shell, the filtering and drying devices and the gas storage device are communicated in series through a gas supply pipeline, a gas outlet positioned in the shell is formed at the tail end of the gas supply pipeline, a first switch device is arranged at the gas outlet, and the filtering and drying device is also connected with a branch of a gas outlet pipeline of the compressor through the gas supply pipeline; the corrosion removal module comprises a liquid storage device filled with corrosion-retarding solution, the liquid storage device is arranged at the top of the machine shell and comprises a liquid outlet pipe, a sprayer connected with the liquid outlet pipe and a preset number of spray nozzles arranged on the sprayer and forming different angles with the axis of the sprayer, the spray nozzles are used for spraying the fan-shaped water curtain of the corrosion-retarding solution and acidic substances in the machine shell, and a second switch device is arranged at the position of the liquid outlet pipe; the detection module is electrically connected with the control module and comprises a predetermined number of ph sensors and a humidity sensor, the ph sensors are arranged on the outer surfaces of the compressor, the shell-and-tube condenser, the shell-and-tube evaporator and the electric cabinet and are used for detecting the ph value of each outer surface, and the humidity sensor is arranged in the shell and is used for detecting the humidity in the shell; the control module is electrically connected with the first switch device, the second switch device, the ph sensor and the humidity sensor, receives ph information and humidity information acquired by the ph sensor and the humidity sensor, processes the ph information and the humidity information to obtain ph maximum value information ph1 and humidity information a1, compares ph1 with a ph preset value ph0 and compares a1 with a humidity preset value a0 to form ph comparison information and humidity comparison information, when the ph comparison information indicates that ph1 is less than ph0, the second switch device is turned on, otherwise, the second switch device is turned off, and when the humidity comparison information indicates that a1 is greater than a0 and the refrigeration module stops working, the first switch device is turned on, otherwise, the first switch device is closed.
Preferably, a third switching device is disposed at the branch, and the third switching device is in signal connection with the control module.
Furthermore, the detection module further comprises a pressure sensor, the pressure sensor is placed in the gas storage device, and the pressure sensor is used for detecting pressure information in the gas storage device.
Further, the control module receives the pressure information in the gas storage device detected by the pressure sensor, processes the pressure information to obtain a pressure information value p1, and compares the p1 with two preset pressure values p0 and p2, wherein p0< p2, and at this time, two pieces of pressure comparison information are formed, when the pressure comparison information indicates that p1< p0, the third switching device is turned on, and when the pressure comparison information indicates that p2< p1, the third switching device is turned off.
In a preferred embodiment, the corrosion-retarding solution is a NaHCO3 solution.
As a preferable scheme, when the number of the filtering and drying devices is plural, the plural filtering and drying devices are connected in parallel with each other, and then are respectively connected in series with the gas storage device and the branch.
As a preferable scheme, the outer surface of the compressor, the outer surface of the shell-and-tube condenser, the outer surface of the shell-and-tube evaporator and the outer surface of the electric cabinet comprise anticorrosive paint coatings, the anticorrosive paint coatings comprise four layers, each layer of paint film is 7-8 mu m in thickness, and the total thickness is 25-30 mu m.
As a preferred scheme, the liquid outlet pipe and the gas supply pipeline are made of copper tubes.
Compared with the prior art, the anti-corrosion water chilling unit provided by the invention comprises a shell, a refrigerating system and an anti-corrosion system connected with the refrigerating system; the refrigeration system is arranged in the shell and consists of a compressor, a shell-and-tube condenser, a shell-and-tube evaporator, an electric cabinet, a thermostatic expansion valve and a pipeline unit; the corrosion prevention system comprises a drying module, a corrosion removal module, a detection module and a control module. It has the following advantages:
(1) the drying module comprises a preset number of filtering and drying devices and a gas storage device which are arranged in the shell, and the filtering and drying devices are also connected with a branch of a gas outlet pipeline of the compressor through a gas supply pipeline; when the compressor works, compressed gas enters the gas storage device after being filtered and dried by the filtering and drying device, the gas in the gas storage device is supplied for use through the gas supply pipeline, and when the water chilling unit stops working, the dry gas sweeps the inside of the stopped water chilling unit. The dry air continuously sweeps the water chilling unit which stops working, so that the interior of the water chilling unit which stops working is kept dry, and the moisture air is prevented from forming fine water drops due to condensation in the water chilling unit which stops working for a long time, and therefore the problem that the service life of equipment (water chilling unit) is influenced due to excessive contact water and corrosion of the water chilling unit which stops working is avoided.
(2) When the detection module detects that the pH value of the parts in the water chilling unit is lower than a pH preset value ph0 and the water chilling unit stops working, the control module controls the corrosion removal module to neutralize the acidity of the parts in the water chilling unit by adopting a slow corrosion solution, so that the corrosion of corrosive gas in industrial atmosphere to the parts in the water chilling unit is prevented, and the service life of the air conditioner is prolonged.
(3) The control module controls the first switching device, the second switching device and the third switching device to be opened and closed, the control module is fully automatically controlled, the risk possibly brought by manual operation negligence is reduced, and meanwhile, the control module has the advantages of being fast in response and high in working efficiency.
(4) The compressor surface the shell and tube condenser surface the shell and tube evaporimeter surface and the electric cabinet surface all contains anticorrosive paint coating, simultaneously the drain pipe and gas supply line adopts copper tubing. The corrosion resistance of the water chilling unit is further improved, and the service life of the water chilling unit is prolonged.
Drawings
FIG. 1 is a schematic diagram of a refrigeration system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a process of opening a second switch device according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of opening of the first switch device according to the embodiment of the present invention.
Detailed Description
The embodiments described below are only a part of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the embodiment provides an anticorrosion water chilling unit, which includes a housing 1, a refrigeration system 2 and an anticorrosion system connected to the refrigeration system 2.
Referring to fig. 1, the refrigeration system 2 is disposed in the casing 1, and is composed of a compressor 4, a shell-and-tube condenser 5, a shell-and-tube evaporator 6, an electric cabinet 7, a thermostatic expansion valve 8, and a pipeline unit 9. The outer surface of the compressor 4, the outer surface of the shell-and-tube condenser 5, the outer surface of the shell-and-tube evaporator 6 and the outer surface of the electric cabinet 7 all comprise anticorrosive paint coatings, the anticorrosive paint coatings comprise four layers, the thickness of each paint film is 7-8 mu m, and the total thickness is 25-30 mu m. The water chilling unit has the advantages of improving the anti-corrosion function, prolonging the service life and reducing the maintenance cost, and can be widely applied to places such as petroleum, chemical engineering, oil refining, metallurgy and the like which have severe environments and require anti-corrosion. Preferably, in order to improve the corrosion resistance of the parts, the liquid outlet 2211 and the gas supply pipeline 213 are made of copper tubes.
The corrosion prevention system comprises a drying module 21, a corrosion removal module, a detection module and a control module.
Referring to fig. 1, the drying module 21 includes a predetermined number of filtering and drying devices 211 and a gas storage device 212 disposed in the casing 1, the filtering and drying devices 211 and the gas storage device 212 are serially connected and communicated through a gas supply pipe 213, a gas outlet 214 is formed at the end of the gas supply pipe 213 and located in the casing 1, a first switch device 215 is disposed at the gas outlet 214, and the filtering and drying devices 211 are further connected with a branch of a gas outlet pipe of the compressor 4 through the gas supply pipe 213. Wherein a third switching device 216 is disposed at the branch. When the compressor 4 works, the compressed gas enters the gas storage device 212 after being filtered and dried by the filtering and drying device 211, the gas in the gas storage device 212 is supplied for use through the gas supply pipeline 213, when the water chilling unit stops working, the third switch device 216 is closed, and the dry gas purges the interior of the water chilling unit which is stopped in operation according to the instruction of the control module. The dry air continuously sweeps the water chilling unit which stops working, so that the interior of the water chilling unit which stops working is kept dry, and the moisture air is prevented from forming fine water drops due to condensation in the water chilling unit which stops working for a long time, and therefore the problem that the service life of equipment (water chilling unit) is influenced due to excessive contact water and corrosion of the water chilling unit which stops working is avoided.
The corrosion removal module includes a liquid storage device 221 containing a corrosion-retarding solution, in this embodiment, the corrosion-retarding solution is a NaHCO3 solution. The liquid storage device 221 is disposed on the top of the housing 1, and includes a liquid outlet 2211, an atomizer 2212 connected to the liquid outlet 2211, and a predetermined number of spray nozzles 2213 disposed on the atomizer 2212 and forming different angles with the axis of the atomizer 2212, the spray nozzles 2213 are configured to spray a fan-shaped water curtain of corrosion-retarding solution to neutralize acidic substances in the housing, and a second switch device 2214 is disposed at the liquid outlet 2211.
The detection module is electrically connected with the control module, and comprises a predetermined number of ph sensors 231, a humidity sensor 232 and a pressure sensor 233, wherein the ph sensors 231 are arranged on the outer surface of the compressor 4, the outer surface of the shell-and-tube condenser 5, the outer surface of the shell-and-tube evaporator 6 and the outer surface of the electric cabinet 7 and are used for detecting ph values of the outer surfaces, the humidity sensor 232 is arranged in the casing 1 and is used for detecting the humidity in the casing 1, the pressure sensor 233 is arranged in the gas storage device 212, and the pressure sensor 233 is used for detecting pressure information in the gas storage device 212.
Referring to fig. 2 and 3, the control module is electrically connected to the first switching device 215, the second switching device 2214, the third switching device 216, the ph sensor 231, the pressure sensor 233 and the humidity sensor 232, the control module receives ph information and humidity information collected by the ph sensor 231 and the humidity sensor 232, the control module processes the ph information and the humidity information to obtain ph maximum value information ph1 and humidity information a1, respectively comparing the ph1 with a ph preset value ph0 and the a1 with a humidity preset value a0 to form a ph comparison information and a humidity comparison information, when the ph comparison information indicates ph1< ph0, the second switch 2214 is turned on, and the spray nozzle 2213 sprays corrosion-retarding solution to neutralize acidic substances in the machine shell; otherwise, the second switch device 2214 is closed. When the humidity comparison information indicates a1> a0 and the refrigeration module 1 stops operating, the first switching device 215 is turned on, and at this time, dry air is introduced into the cabinet; otherwise, the first switching device 215 is closed.
Preferably, the control module receives the pressure information in the gas storage device 212 detected by the pressure sensor, processes the pressure information to obtain a pressure information value p1, and compares the p1 with two preset pressure values p0 and p2, where p0< p2, and then two pieces of pressure comparison information are formed, when the pressure comparison information indicates p1< p0, the third switching device is turned on, and when the pressure comparison information indicates p2< p1, the third switching device is turned off.
Preferably, when the number of the filtering and drying devices 211 is plural, the plural filtering and drying devices 211 are connected in parallel with each other, and then are respectively connected in series with the gas storage device 212 and the branch.
In this embodiment, when the detection module detects that the ph value of the parts in the water chilling unit is lower than a ph preset value ph0 and the water chilling unit stops working, the control module controls the corrosion removal module to neutralize the acidity of the parts in the water chilling unit with a corrosion-retarding solution, so that the corrosion of corrosive gas in industrial atmosphere to the parts in the water chilling unit is prevented, and the service life of the air conditioner is prolonged. Meanwhile, when the water chilling unit stops working, the detection module detects humidity information in the machine case 1, when the humidity information a1> a0(a0 is a preset humidity value) and the refrigeration module 1 stops working, the first switch device 215 is turned on, otherwise, the first switch device 215 is turned off. When the first switch device 215 is turned on, the dry gas purges the interior of the water chiller that is shut down. The dry air continuously sweeps the water chilling unit which stops working, so that the interior of the water chilling unit which stops working is kept dry, and the moisture air is prevented from forming fine water drops due to condensation in the water chilling unit which stops working for a long time, and therefore the problem that the service life of equipment (water chilling unit) is influenced due to excessive contact water and corrosion of the water chilling unit which stops working is avoided.
The anti-corrosion water chilling unit provided by the invention has the advantages of anti-corrosion function, prolonged service life and reduced maintenance cost, and can be widely applied to places such as petroleum, chemical engineering, oil refining, metallurgy and the like which have severe environments and require anti-corrosion.
The above disclosure is only one preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.

Claims (8)

1. An anticorrosion water chilling unit comprises a machine shell, a refrigerating system and an anticorrosion system connected with the refrigerating system; the refrigeration system is arranged in the shell and consists of a compressor, a shell-and-tube condenser, a shell-and-tube evaporator, an electric cabinet, a thermostatic expansion valve and a pipeline unit; the method is characterized in that: the corrosion prevention system comprises a drying module, a corrosion removal module, a detection module and a control module,
the drying module comprises a preset number of filtering and drying devices and a gas storage device which are arranged in the shell, the filtering and drying devices and the gas storage device are communicated in series through a gas supply pipeline, a gas outlet positioned in the shell is formed at the tail end of the gas supply pipeline, a first switch device is arranged at the gas outlet, and the filtering and drying devices are further connected with a branch of a gas outlet pipeline of the compressor through the gas supply pipeline;
the corrosion removal module comprises a liquid storage device filled with corrosion-retarding solution, the liquid storage device is arranged at the top of the machine shell and comprises a liquid outlet pipe, a sprayer connected with the liquid outlet pipe and a preset number of spray nozzles arranged on the sprayer and forming different angles with the axis of the sprayer, the spray nozzles are used for spraying the fan-shaped water curtain of the corrosion-retarding solution and acidic substances in the machine shell, and a second switch device is arranged at the position of the liquid outlet pipe;
the detection module is electrically connected with the control module and comprises a predetermined number of ph sensors and a humidity sensor, the ph sensors are arranged on the outer surfaces of the compressor, the shell-and-tube condenser, the shell-and-tube evaporator and the electric cabinet and are used for detecting the ph value of each outer surface, and the humidity sensor is arranged in the shell and is used for detecting the humidity in the shell;
the control module is electrically connected with the first switch device, the second switch device, the ph sensor and the humidity sensor, receives ph information and humidity information acquired by the ph sensor and the humidity sensor, processes the ph information and the humidity information to obtain ph maximum value information ph1 and humidity information a1, compares ph1 with a ph preset value ph0 and compares a1 with a humidity preset value a0 to form ph comparison information and humidity comparison information, when the ph comparison information indicates that ph1 is less than ph0, the second switch device is turned on, otherwise, the second switch device is turned off, and when the humidity comparison information indicates that a1 is greater than a0 and the refrigeration module stops working, the first switch device is turned on, otherwise, the first switch device is closed.
2. The corrosion-resistant water chilling unit according to claim 1, wherein a third switching device is disposed at the branch and is in signal connection with the control module.
3. The corrosion-resistant water chilling unit according to claim 2, wherein the detection module further comprises a pressure sensor, the pressure sensor is disposed in the gas storage device, and the pressure sensor is used for detecting pressure information in the gas storage device.
4. The corrosion-resistant water chilling unit according to claim 2, wherein the control module receives the pressure information in the gas storage device detected by the pressure sensor, processes the pressure information to obtain a pressure information value p1, and compares the p1 with two preset pressure values p0 and p2, wherein p0< p2, and two pressure comparison information are formed, when the pressure comparison information indicates p1< p0, the third switching device is turned on, and when the pressure comparison information indicates p2< p1, the third switching device is turned off.
5. The corrosion-resistant water chilling unit according to claim 1, wherein said corrosion-retarding solution is a NaHCO3 solution.
6. The anti-corrosion water chilling unit according to claim 1, wherein when the number of the filtering and drying devices is plural, the filtering and drying devices are connected in parallel with each other and then connected in series with the air storage device and the branch, respectively.
7. The anti-corrosion water chilling unit according to claim 1, wherein the outer surface of the compressor, the outer surface of the shell-and-tube condenser, the outer surface of the shell-and-tube evaporator and the outer surface of the electric cabinet all comprise anti-corrosion paint coatings, the anti-corrosion coatings comprise four layers, each layer of paint has a thickness of 7-8 μm, and the total thickness of the paint is 25-30 μm.
8. The anti-corrosion water chilling unit according to claim 1, wherein the outlet pipe and the air supply pipe are copper pipes.
CN201910794579.6A 2019-08-27 2019-08-27 Anticorrosive cooling water set Pending CN112443992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910794579.6A CN112443992A (en) 2019-08-27 2019-08-27 Anticorrosive cooling water set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910794579.6A CN112443992A (en) 2019-08-27 2019-08-27 Anticorrosive cooling water set

Publications (1)

Publication Number Publication Date
CN112443992A true CN112443992A (en) 2021-03-05

Family

ID=74740940

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910794579.6A Pending CN112443992A (en) 2019-08-27 2019-08-27 Anticorrosive cooling water set

Country Status (1)

Country Link
CN (1) CN112443992A (en)

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