CN114704886A - Air conditioning system for independently controlling temperature and humidity of mechanical subway public area - Google Patents
Air conditioning system for independently controlling temperature and humidity of mechanical subway public area Download PDFInfo
- Publication number
- CN114704886A CN114704886A CN202210364487.6A CN202210364487A CN114704886A CN 114704886 A CN114704886 A CN 114704886A CN 202210364487 A CN202210364487 A CN 202210364487A CN 114704886 A CN114704886 A CN 114704886A
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- Prior art keywords
- public area
- air
- air supply
- humidity
- temperature
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 23
- 230000005855 radiation Effects 0.000 claims abstract description 15
- 238000005057 refrigeration Methods 0.000 claims description 5
- 239000003517 fume Substances 0.000 claims description 4
- 238000010297 mechanical methods and process Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 238000010276 construction Methods 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 description 7
- 238000007791 dehumidification Methods 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- 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
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- 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
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F13/068—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as perforated walls, ceilings or floors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0089—Systems using radiation from walls or panels
- F24F5/0092—Systems using radiation from walls or panels ceilings, e.g. cool ceilings
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioning system for independently controlling the temperature and the humidity of a mechanical subway public area, which adopts a fresh air processing system to control the indoor humidity, and adopts a ceiling with a cold radiation plate to control the temperature of the public area; the temperature and the humidity of the system are independently controlled, and a cold source adopts a high-temperature cold source, so that the energy efficiency of the system is improved, and the energy conservation is realized; the air supply device has no wet surface of condensed water, and the quality of the supplied air is high, so that the comfort and health of indoor personnel are ensured; the independent regulation of indoor temperature and humidity is really realized, indoor parameters are accurately controlled, and the comfort of a human body is improved; meanwhile, the size requirement of the conventional ventilation scheme on the shield section is reduced, the engineering implementation difficulty and the construction risk are reduced, and the engineering construction cost is saved.
Description
Technical Field
The invention belongs to the technical field of subway air conditioners, and particularly relates to an air conditioning system for independently controlling the temperature and the humidity of a mechanical subway public area.
Background
At present, air conditioning systems in subway public areas mostly adopt a condensation dehumidification mode to process air, and a conventional air conditioning system performs cooling and dehumidification simultaneously. The water chilling unit provides 7 ℃ chilled water, the chilled water is conveyed to the combined air conditioner through the chilled water pump and the chilled water pipe, mixed gas consisting of fresh air and return air is processed, the mixed gas is conveyed to a public area through a blower in the combined air conditioner to eliminate heat and humidity loads in the space, the comfort requirement of the public area is met, and the return air is conveyed to the combined air conditioner through the return air fan.
The conventional air conditioning system has the following problems: firstly, a conventional air conditioning system needs to process the heat and humidity load in a public area at the same time, in order to achieve the purpose of dehumidification, the temperature of a cold source needs to be lower than the indoor dew point temperature, and actually, the temperature of the cold source required by cooling is obviously higher than that of the cold source required by dehumidification, so that energy waste is caused. Second, conventional air conditioning systems are difficult to accommodate changes in the heat to humidity ratio in public areas. Factors influencing heat and humidity loads of a public area are many, the heat and humidity ratio in the public area is changed at any moment due to changes of passenger flow, permeation of hot air in a tunnel opened by a shielding door and the like, and the requirements of the public area on temperature and humidity are difficult to meet in the process of cooling and dehumidifying in summer of a conventional air conditioning system. And thirdly, when the conventional air conditioning system is applied to a subway public area, a dew-point air supply mode is usually adopted, and the air supply temperature is low. The moisture load in the public area of the subway is large (large passenger flow people have large moisture dispersion and the structure wall in contact with the soil continuously seeps water), and when the subway meets plum rain, the wet surface of the air supply outlet is likely to generate condensed water, thereby creating a condition for mass propagation of bacteria, mold and the like and greatly deteriorating the air quality in the public area.
Based on the technical scheme, a large amount of work is done on the aspects of energy-saving control strategy of the subway air conditioning system, improvement of air quality of a public area and improvement of comfort level of the environment of the public area in China at present, but on the basis of the conventional air conditioning system, great breakthrough is difficult to obtain by means of intellectualization, refinement and the like, and an ideal effect is achieved.
Disclosure of Invention
The present invention is directed to an air conditioning system for a public area of a subway, which is different from a conventional air conditioning system for a public area of a subway, so as to solve the technical problems mentioned in the background art. In order to achieve the above object, the present invention provides an air conditioning system for independently controlling temperature and humidity in a mechanical subway public area, which comprises: the cold radiation plate and the return air of setting in subway public area furred ceiling hold concurrently and discharge fume the pipe, set up the air supply main pipe under subway public area floor, connect a plurality of air supply branch pipes on the air supply main pipe, the air supply branch pipe end is equipped with the supply-air outlet, the return air holds concurrently and discharges fume the pipe and is located the setting of cold radiation plate top.
Preferably, the pipeline in the cold radiation plate is connected with an external high-temperature refrigeration device.
Preferably, the main air supply pipe and the branch air supply pipe are arranged under the floor of the subway public area, and the air supply outlet at the tail end of the branch air supply pipe penetrates through the floor of the subway public area and faces the inner space of the subway public area.
Preferably, the air supply main pipe is connected with an external dehumidifier.
Compared with the prior art, the invention has the beneficial effects that:
the invention breaks through the conventional air conditioning system arranged in the public area, and adopts the air conditioning system with independent temperature and humidity control. The cold source adopts a high-temperature cold source, so that the energy efficiency of the system is improved, and the energy conservation is realized; the air supply temperature is high, no condensed water is on the surface of an air supply outlet, the quality of the supplied air is high, and the comfort and health of indoor personnel are ensured; the independent regulation of indoor temperature and humidity is really realized, indoor parameters are accurately controlled, and the comfort of a human body is improved; meanwhile, the size requirement of the conventional ventilation scheme on the shield section is reduced, the engineering implementation difficulty and the construction risk are reduced, and the engineering construction cost is saved.
Drawings
FIG. 1 is a schematic layout of the present invention in a public area of a subway;
in the figure: 1. a cold radiation plate; 2. a main air supply pipe; 3. an air supply branch pipe; 4. an air supply outlet; 5. the return air and the smoke exhaust pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 present invention provides a technical solution: an air conditioning system for independently controlling temperature and humidity of a mechanical subway public area comprises: the cold radiation plate 1, the main air supply pipe 2, the branch air supply pipe 3, the air supply outlet 4 and the return air and smoke exhaust pipe 5.
As shown in figure 1, the cold radiation plate 1 is arranged in the suspended ceiling of the subway public area, wherein a pipeline in the cold radiation plate 1 is connected with external high-temperature refrigeration equipment, a refrigeration medium conveyed in a water pipe of the cold radiation plate 1 is provided by a high-temperature water chilling unit, a water source heat pumping unit and the like, sensible heat load of the public area can be eliminated, and the cold source adopts a high-temperature cold source, so that the energy efficiency of the system is improved, and energy conservation is realized. Secondly, an air supply main pipe 2 is arranged below the floor of the subway public area, one end of the air supply main pipe 2 is connected with an external dehumidifier, the other end of the air supply main pipe 2 is connected with a plurality of air supply branch pipes 3, the plurality of air supply branch pipes 3 are connected with an air supply outlet 4, the air supply main pipe 2 and the plurality of air supply branch pipes 3 are arranged below the floor of the subway public area, the air supply outlet 4 at the tail end of each air supply branch pipe 3 penetrates through the floor of the subway public area and faces the inner space of the subway public area, one end of each air supply outlet 4 is connected with the corresponding air supply branch pipe 3, the other end of each air supply outlet 4 is arranged on the ground, air after dehumidification and other treatment is sent into the public area through the air supply main pipe 2, the air supply branch pipes 3 and the air supply outlets 4, and wet load in the public area is eliminated; the air supply temperature is high, no condensed water is generated at the air supply outlet, the quality of the supplied air is high, and the comfort and health of indoor personnel are ensured; the indoor temperature and humidity are adjusted independently, indoor parameters are controlled accurately, and the comfort of a human body is improved.
And an air return and smoke exhaust pipe 5 is also arranged in the suspended ceiling of the subway public area, and the air return and smoke exhaust pipe 5 is arranged above the cold radiation 1. Under the working condition of an air conditioner, return air is sent back to the dehumidifier for treatment through the return air and exhaust pipe 5, and the updating of the internal environment air is completed; when a fire hazard working condition occurs in the public area, the air return and exhaust pipe 5 removes smoke in the public area, the air supply main pipe 2, the air supply branch pipe 3 and the air supply outlet 4 are used as an air supply pipe and an air supply port to supply air to the public area, conditions are provided for people to run away and move away related materials, and the requirement of the fire hazard working condition in the public area is met.
The working principle is as follows: the fresh air treatment system is adopted to control the indoor humidity integrally, and the cold radiation plate 1 is adopted to control the indoor temperature, so that the independent control of the temperature and the humidity is realized. When the environmental parameters are within the preset range, the fresh air system sends air into the public area to meet the requirement of the minimum fresh air volume of the public area. When the environmental temperature reaches the upper limit of a preset value, automatically opening a temperature adjusting system, conveying the medium processed by the high-temperature refrigeration equipment into a pipeline of a cold radiation plate 1 in a suspended ceiling of a public area, and eliminating redundant indoor sensible heat load so as to adjust the indoor temperature; when the environmental humidity reaches the upper limit of the preset value, the humidity regulation is automatically opened, and the fresh air system sends the dehumidified air into the public area through the main air supply pipe 2, the branch air supply pipes 3 and the air supply outlets 4 which are preset under the floor. And the return air and smoke exhaust pipe 5 is positioned in the suspended ceiling of the public area, and the wet air in the public area is returned to the dehumidifier to be mixed with part of fresh air and then treated. The two pipelines work simultaneously to ensure the balance of indoor pressure and the introduction of fresh air, reduce the loss of cold energy and meet the requirements of smoke exhaust and air supplement when a fire disaster occurs in a public area. When the environmental temperature and the humidity reach the lower limit of the preset values, the cold water system and the dehumidification system are automatically closed, and only fresh air is sent into a public area, so that the requirement of indoor minimum fresh air volume is met.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore desired that the present embodiments be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, without any reference thereto being construed as limiting the claim concerned.
Claims (4)
1. The utility model provides an air conditioning system of mechanical method subway public area humiture independent control, its characterized in that, is responsible for including cold radiation board and return air of setting in subway public area furred ceiling concurrently discharge fume the pipe, set up the air supply under subway public area floor, the air supply is responsible for and is connected a plurality of air supply branch pipes, the air supply branch pipe end is equipped with the supply-air outlet, the return air is discharged fume the pipe and is located cold radiation board top setting concurrently.
2. The air conditioning system for independently controlling the temperature and the humidity of the mechanical subway public area according to claim 1, wherein a pipeline in the cold radiation plate is connected with an external high-temperature refrigeration device.
3. The air conditioning system of claim 1, wherein the main air supply pipe and the branch air supply pipe are disposed under a floor of the subway public area, and an air supply outlet at the end of the branch air supply pipe penetrates through the floor of the subway public area and is disposed toward the inner space of the subway public area.
4. The air conditioning system of claim 1, wherein the main air supply pipe is connected to an external dehumidifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210364487.6A CN114704886A (en) | 2022-04-08 | 2022-04-08 | Air conditioning system for independently controlling temperature and humidity of mechanical subway public area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210364487.6A CN114704886A (en) | 2022-04-08 | 2022-04-08 | Air conditioning system for independently controlling temperature and humidity of mechanical subway public area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114704886A true CN114704886A (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210364487.6A Pending CN114704886A (en) | 2022-04-08 | 2022-04-08 | Air conditioning system for independently controlling temperature and humidity of mechanical subway public area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114704886A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100123473A (en) * | 2009-05-15 | 2010-11-24 | 권두영 | An apparatus for preventing inundation of a ventilating opening of subway |
| CN203744430U (en) * | 2014-02-27 | 2014-07-30 | 北京英沣特能源技术有限公司 | Ceiling radiation air conditioning system |
| CN107883479A (en) * | 2017-12-07 | 2018-04-06 | 中冶京诚工程技术有限公司 | With fresh air except the air-conditioning system of the independent temperature-humidity control of haze self-cleaning function |
| CN208920319U (en) * | 2018-08-23 | 2019-05-31 | 中国建筑西北设计研究院有限公司 | A kind of novel air processing system based on indoor temperature and humidity independent control |
| CN111637508A (en) * | 2020-05-11 | 2020-09-08 | 东南大学 | Cold-warm radiation air conditioning system suitable for tall and big space waiting hall |
| CN114183867A (en) * | 2021-11-24 | 2022-03-15 | 中铁第五勘察设计院集团有限公司 | Air-conditioning ventilation system of subway underground station platform |
-
2022
- 2022-04-08 CN CN202210364487.6A patent/CN114704886A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100123473A (en) * | 2009-05-15 | 2010-11-24 | 권두영 | An apparatus for preventing inundation of a ventilating opening of subway |
| CN203744430U (en) * | 2014-02-27 | 2014-07-30 | 北京英沣特能源技术有限公司 | Ceiling radiation air conditioning system |
| CN107883479A (en) * | 2017-12-07 | 2018-04-06 | 中冶京诚工程技术有限公司 | With fresh air except the air-conditioning system of the independent temperature-humidity control of haze self-cleaning function |
| CN208920319U (en) * | 2018-08-23 | 2019-05-31 | 中国建筑西北设计研究院有限公司 | A kind of novel air processing system based on indoor temperature and humidity independent control |
| CN111637508A (en) * | 2020-05-11 | 2020-09-08 | 东南大学 | Cold-warm radiation air conditioning system suitable for tall and big space waiting hall |
| CN114183867A (en) * | 2021-11-24 | 2022-03-15 | 中铁第五勘察设计院集团有限公司 | Air-conditioning ventilation system of subway underground station platform |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220705 |