CN106016513A - Damp-proof anti-condensation method for hydropower plant - Google Patents

Damp-proof anti-condensation method for hydropower plant Download PDF

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Publication number
CN106016513A
CN106016513A CN201610290560.4A CN201610290560A CN106016513A CN 106016513 A CN106016513 A CN 106016513A CN 201610290560 A CN201610290560 A CN 201610290560A CN 106016513 A CN106016513 A CN 106016513A
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CN
China
Prior art keywords
air
condensation
damp
factory
equipment
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Pending
Application number
CN201610290560.4A
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Chinese (zh)
Inventor
刘谦
朱小飞
崔晓斌
盛毅
黎山
伍君
武彥培
王辉
骆琼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China National Water Conservancy And Hydropower Construction Consulting Zhongnan Co Ltd
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China National Water Conservancy And Hydropower Construction Consulting Zhongnan Co Ltd
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Application filed by China National Water Conservancy And Hydropower Construction Consulting Zhongnan Co Ltd filed Critical China National Water Conservancy And Hydropower Construction Consulting Zhongnan Co Ltd
Priority to CN201610290560.4A priority Critical patent/CN106016513A/en
Publication of CN106016513A publication Critical patent/CN106016513A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/0001—Control or safety arrangements for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew

Abstract

The invention discloses a damp-proof anti-condensation method for a hydropower plant. The damp-proof anti-condensation method comprises the following steps of (1) air parameter determination; (2) the air supply parameter determination principle; (3) whole plant air treatment equipment determination; and (4) the air treatment process. According to the damp-proof anti-condensation method for the hydropower plant, a good ventilation and air conditioning system with a drying facility is adopted, and damp and condensation are fundamentally eliminated; meanwhile, the working operational environment of the hydropower plant is improved; cold water resources of the hydropower plant of the scheme are fully utilized by the novel ventilation and air conditioning system, so that the mechanical refrigeration quantity is reduced; air is warmed through compression heat of a compressor, and electric heating is reduced; that is, the problems of damp and condensation are solved through the minimum consumption; and the damp-proof anti-condensation method is an ideal method at present and has excellent application and popularization value.

Description

A kind of hydroelectric power plant Damp proof dew retardation method
Technical field
The present invention relates to a kind of hydroelectric power plant Damp proof dew retardation method.
Background technology
Hydroelectric power plant is normally at mountain area, summer humid, in factory, under water, surface temperature is low for supply equipment and part building, Wet humid air can condense, and the power plant that this problem of having is serious, summer, dripped flowing water everywhere, has a strong impact on power station as Water Curtain Cave The safe operation of equipment, for solving this problem, the most mostly uses in the method supplied, insulation material layer wrapped up by drainage pipeline, The insulation material layer wrapping of the most external similar sponge using code name to be FONM, domestic usual employing expanded perlite, glass fiber Band plastic foil and Colophonium wrapping etc., also have cold object table topcoating import heat-barrier material (U.S.'s product) so that it is surface is formed and air The very thin thermal insulation layer of isolation, prevents condensation from producing.
Using internal layer wrapping heat preserving and insulating material, outer layer wrapping perspex steel or aluminium alloy plate (even corrosion resistant plate), surface is tied Dew has alleviated, no matter but owing to how to seal, all can not be completely exhausted out the humid air between cold body surface and heat-insulation layer and outer The entrance of portion's humid air, so after a period of time, breakdown heat-insulation layer, the corrosion the most of water tube surfaces major part, condensation trouble is again Being converted into corrosion problem, condensation can not be fully solved simultaneously, the method for face coat, owing to air is big with the cold object temperature difference, And water pipe and coating Long contact time ultimately result in Coated Surface Temperature and still exist close to cold object (cold water) temperature, condensation. Above two method also can't resolve the condensation of other building surfaces, and the condensation of irregular-shaped objects.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the invention provides a kind of hydroelectric power plant Damp proof dew retardation method, good by using There is ventilation and air conditioning system in the factory of drying facility, the air entering working area is carried out wet down and goes temperature, so that its dew point temperature connects Near or less than body surface temperature, thus reach to be inherently eliminated dew condensation phenomenon, in-plant equipment can longtime running in dry environment, Simultaneously by the process of air also reaches to improve working environment, reduce the purpose of security incident.
To achieve these goals, the present invention is achieved through the following technical solutions:
A kind of hydroelectric power plant Damp proof dew retardation method, comprises the steps:
(1) determination of air parameter: hydroelectric power plant's air parameter confirms according to local hydrometeorology data, dry-bulb temperature, wet Bulb temperature, corresponding relative humidity, fresh air proportion is 9-11%；Factory Building is tall and big confined space, and condensation zone is formed little envelope Close space, to save air-treatment amount；
(2) the determination principle of air supply parameter: the determination principle of air supply parameter for 1. to utilize air conditioner air quantity to take away waste heat in factory, Ensure that each equipment heating is taken away in time, equipment room temperature constant；2. ventilation rate requirement between full factory each capital equipment is met； 3. 0.4-0.6m/s wind speed is kept in air-supply dew point temperature less than cold body surface temperature in factory, each humidity, condensation place, with Keep the environmental drying of working space；4. meet the requirement of human comfort, i.e. summer temp at 23～28 DEG C, humidity 40%～ Between 60%, wind speed is 0.2～0.5m/s；
(3) determine full factory airhandling equipment: according to air supply parameter, determine full factory air output Li=Q/ (H2-H1)；Total air output L=∑ Lim3/h；LiFor each equipment room air quantity, QiFor each equipment room caloric value, H1For each equipment room air-supply braised value J/kg, H2For respectively Equipment room operating point air braised value J/kg；According to full factory air output, air entering and returning parameter determination full factory airhandling equipment；
(4) air handling process: 1. general hydroelectric power plant has the most economic cold water resource, so first with cold water comb pair Process air carries out cooling and dries；2. the air after the first order processes, then carry out second level deep cooling dehumidifying to dew through dehumidifying coil Below some temperature；3. the air after processing the second level is directly entered working area, and people's cognition does not feels well, so utilizing again condensation Coil pipe on the one hand cooling medium, on the other hand adds hot-air, does heating coil, bi-directional energy-saving；The air heating the pure man that will process The preferable temperature of body comfort is re-fed into working area.
The invention has the beneficial effects as follows: the present invention uses the good ventilation and air conditioning system with drying facility, is inherently eliminated Moist, condensation, improves hydroelectric power plant's work running environment simultaneously, and new ventilation and air conditioning system makes full use of this programme hydroelectric power plant Cold water resource, reduces machine cold, utilizes again the heat of compression of compressor to atmosphere temperature rising, reduces electrical heating, i.e. utilize minimum Consumption solve moist, condensation trouble, the method be can yet be regarded as a kind of more satisfactory method at present, and there is fabulous popularization should By value.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further described, and following embodiment is illustrative, is not determinate, it is impossible to Protection scope of the present invention is limited with following embodiment.
Embodiment 1
A kind of hydroelectric power plant Damp proof dew retardation method, comprises the steps:
(1) determination of air parameter: hydroelectric power plant's air parameter confirms according to local hydrometeorology data, dry-bulb temperature, wet Bulb temperature, corresponding relative humidity, fresh air proportion is 9%；Factory Building is tall and big confined space, condensation zone forms little closing empty Between, to save air-treatment amount；
(2) the determination principle of air supply parameter: the determination principle of air supply parameter for 1. to utilize air conditioner air quantity to take away waste heat in factory, Ensure that each equipment heating is taken away in time, equipment room temperature constant；2. ventilation rate requirement between full factory each capital equipment is met； 3. 0.4m/s wind speed is kept, to keep work in air-supply dew point temperature less than cold body surface temperature in factory, each humidity, condensation place Make the environmental drying in place；4. meeting the requirement of human comfort, i.e. summer temp at 23 DEG C, humidity is 40%, and wind speed is 0.2m/s；
(3) determine full factory airhandling equipment: according to air supply parameter, determine full factory air output Li=Q/ (H2-H1)；Total air output L=∑ Lim3/h；LiFor each equipment room air quantity, QiFor each equipment room caloric value, H1For each equipment room air-supply braised value J/kg, H2For respectively Equipment room operating point air braised value J/kg；According to full factory air output, air entering and returning parameter determination full factory airhandling equipment；
(4) air handling process: 1. general hydroelectric power plant has the most economic cold water resource, so first with cold water comb pair Process air carries out cooling and dries；2. the air after the first order processes, then carry out second level deep cooling dehumidifying to dew through dehumidifying coil Below some temperature；3. the air after processing the second level is directly entered working area, and people's cognition does not feels well, so utilizing again condensation Coil pipe on the one hand cooling medium, on the other hand adds hot-air, does heating coil, bi-directional energy-saving；The air heating the pure man that will process The preferable temperature of body comfort is re-fed into working area.
Embodiment 2
A kind of hydroelectric power plant Damp proof dew retardation method, comprises the steps:
(1) determination of air parameter: hydroelectric power plant's air parameter confirms according to local hydrometeorology data, dry-bulb temperature, wet Bulb temperature, corresponding relative humidity, fresh air proportion is 11%；Factory Building is tall and big confined space, and condensation zone is formed little closing Space, to save air-treatment amount；
(2) the determination principle of air supply parameter: the determination principle of air supply parameter for 1. to utilize air conditioner air quantity to take away waste heat in factory, Ensure that each equipment heating is taken away in time, equipment room temperature constant；2. ventilation rate requirement between full factory each capital equipment is met； 3. 0.6m/s wind speed is kept, to keep work in air-supply dew point temperature less than cold body surface temperature in factory, each humidity, condensation place Make the environmental drying in place；4. meeting the requirement of human comfort, i.e. summer temp at 28 DEG C, humidity is 60%, and wind speed is 0.5m/s；
(3) determine full factory airhandling equipment: according to air supply parameter, determine full factory air output Li=Q/ (H2-H1)；Total air output L=∑ Lim3/h；LiFor each equipment room air quantity, QiFor each equipment room caloric value, H1For each equipment room air-supply braised value J/kg, H2For respectively Equipment room operating point air braised value J/kg；According to full factory air output, air entering and returning parameter determination full factory airhandling equipment；
(4) air handling process: 1. general hydroelectric power plant has the most economic cold water resource, so first with cold water comb pair Process air carries out cooling and dries；2. the air after the first order processes, then carry out second level deep cooling dehumidifying to dew through dehumidifying coil Below some temperature；3. the air after processing the second level is directly entered working area, and people's cognition does not feels well, so utilizing again condensation Coil pipe on the one hand cooling medium, on the other hand adds hot-air, does heating coil, bi-directional energy-saving；The air heating the pure man that will process The preferable temperature of body comfort is re-fed into working area.
Embodiment 3
A kind of hydroelectric power plant Damp proof dew retardation method, comprises the steps:
(1) determination of air parameter: hydroelectric power plant's air parameter confirms according to local hydrometeorology data, dry-bulb temperature, wet Bulb temperature, corresponding relative humidity, fresh air proportion is 10%；Factory Building is tall and big confined space, and condensation zone is formed little closing Space, to save air-treatment amount；
(2) the determination principle of air supply parameter: the determination principle of air supply parameter for 1. to utilize air conditioner air quantity to take away waste heat in factory, Ensure that each equipment heating is taken away in time, equipment room temperature constant；2. ventilation rate requirement between full factory each capital equipment is met； 3. 0.5m/s wind speed is kept, to keep work in air-supply dew point temperature less than cold body surface temperature in factory, each humidity, condensation place Make the environmental drying in place；4. meeting the requirement of human comfort, i.e. summer temp at 25 DEG C, humidity is between 50%, and wind speed is 0.3m/s；
(3) determine full factory airhandling equipment: according to air supply parameter, determine full factory air output Li=Q/ (H2-H1)；Total air output L=∑ Lim3/h；LiFor each equipment room air quantity, QiFor each equipment room caloric value, H1For each equipment room air-supply braised value J/kg, H2For respectively Equipment room operating point air braised value J/kg；According to full factory air output, air entering and returning parameter determination full factory airhandling equipment；
(4) air handling process: 1. general hydroelectric power plant has the most economic cold water resource, so first with cold water comb pair Process air carries out cooling and dries；2. the air after the first order processes, then carry out second level deep cooling dehumidifying to dew through dehumidifying coil Below some temperature；3. the air after processing the second level is directly entered working area, and people's cognition does not feels well, so utilizing again condensation Coil pipe on the one hand cooling medium, on the other hand adds hot-air, does heating coil, bi-directional energy-saving；The air heating the pure man that will process The preferable temperature of body comfort is re-fed into working area.

Claims (1)

1. hydroelectric power plant's Damp proof dew retardation method, it is characterised in that comprise the steps:
(1) determination of air parameter: hydroelectric power plant's air parameter confirms according to local hydrometeorology data, dry-bulb temperature, wet Bulb temperature, corresponding relative humidity, fresh air proportion is 9-11%；Factory Building is tall and big confined space, and condensation zone is formed little envelope Close space, to save air-treatment amount；
(2) the determination principle of air supply parameter: the determination principle of air supply parameter for 1. to utilize air conditioner air quantity to take away waste heat in factory, Ensure that each equipment heating is taken away in time, equipment room temperature constant；2. ventilation rate requirement between full factory each capital equipment is met； 3. 0.4-0.6m/s wind speed is kept in air-supply dew point temperature less than cold body surface temperature in factory, each humidity, condensation place, with Keep the environmental drying of working space；4. meet the requirement of human comfort, i.e. summer temp at 23～28 DEG C, humidity 40%～ Between 60%, wind speed is 0.2～0.5m/s；
(3) determine full factory airhandling equipment: according to air supply parameter, determine full factory air output Li=Q/ (H2-H1)；Total air output L=∑ Lim3/h；LiFor each equipment room air quantity, QiFor each equipment room caloric value, H1For each equipment room air-supply braised value J/kg, H2For respectively Equipment room operating point air braised value J/kg；According to full factory air output, air entering and returning parameter determination full factory airhandling equipment；
(4) air handling process: 1. general hydroelectric power plant has the most economic cold water resource, so first with cold water comb pair Process air carries out cooling and dries；2. the air after the first order processes, then carry out second level deep cooling dehumidifying to dew through dehumidifying coil Below some temperature；3. the air after processing the second level is directly entered working area, and people's cognition does not feels well, so utilizing again condensation Coil pipe on the one hand cooling medium, on the other hand adds hot-air, does heating coil, bi-directional energy-saving；The air heating the pure man that will process The preferable temperature of body comfort is re-fed into working area.
CN201610290560.4A 2016-04-29 2016-04-29 Damp-proof anti-condensation method for hydropower plant Pending CN106016513A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107869813A (en) * 2017-10-27 2018-04-03 北京空间技术研制试验中心 A kind of nacelle anti-condensation method of spacecraft transfer
CN109595768A (en) * 2018-11-15 2019-04-09 上海朗诗规划建筑设计有限公司 Design control method and overall control method for indoor anti-condensation risk
CN110440355A (en) * 2019-08-13 2019-11-12 清华大学 Power station temperature adjusting and dehumidifying air-conditioning system and its operation method
CN112361560A (en) * 2020-11-09 2021-02-12 同方股份有限公司 Underground space anti-condensation control system and control method thereof

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107869813A (en) * 2017-10-27 2018-04-03 北京空间技术研制试验中心 A kind of nacelle anti-condensation method of spacecraft transfer
CN109595768A (en) * 2018-11-15 2019-04-09 上海朗诗规划建筑设计有限公司 Design control method and overall control method for indoor anti-condensation risk
CN109595768B (en) * 2018-11-15 2021-09-07 上海朗诗规划建筑设计有限公司 Design control method and overall control method for indoor anti-condensation risk
CN110440355A (en) * 2019-08-13 2019-11-12 清华大学 Power station temperature adjusting and dehumidifying air-conditioning system and its operation method
CN110440355B (en) * 2019-08-13 2023-11-17 清华大学 Hydropower station temperature-regulating dehumidifying air-conditioning system and operation method thereof
CN112361560A (en) * 2020-11-09 2021-02-12 同方股份有限公司 Underground space anti-condensation control system and control method thereof
CN112361560B (en) * 2020-11-09 2023-08-22 同方股份有限公司 Control method of underground space condensation prevention control system

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Application publication date: 20161012