CN112460701A - Dew point evaporation type air supply device - Google Patents

Dew point evaporation type air supply device Download PDF

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Publication number
CN112460701A
CN112460701A CN202011242995.4A CN202011242995A CN112460701A CN 112460701 A CN112460701 A CN 112460701A CN 202011242995 A CN202011242995 A CN 202011242995A CN 112460701 A CN112460701 A CN 112460701A
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CN
China
Prior art keywords
air
supply
heat exchanger
dew point
air supply
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Pending
Application number
CN202011242995.4A
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Chinese (zh)
Inventor
汪德熙
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Individual
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Individual
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Priority to CN202011242995.4A priority Critical patent/CN112460701A/en
Publication of CN112460701A publication Critical patent/CN112460701A/en
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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
    • F24F5/0007—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 cooling apparatus specially adapted for use in air-conditioning
    • F24F5/0035—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 cooling apparatus specially adapted for use in air-conditioning using evaporation
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • 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
    • F24F13/20—Casings or covers
    • 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
    • F24F13/28—Arrangement or mounting of filters
    • 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
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Central Air Conditioning (AREA)

Abstract

The invention discloses a dew point evaporation type air supply device. The technical scheme of the invention is as follows: the air-permeable heat-insulating shell comprises a heat-insulating shell, wherein an air inlet, an air filter, an air introducing chamber, a separation chamber, an isolated air heat exchanger, an air-permeable air heat exchanger, an air outlet and an air supply outlet are sequentially arranged on the heat-insulating shell. The scheme provided by the invention utilizes the enthalpy difference which is the difference between the dry bulb temperature, the wet bulb temperature and the dew point temperature when the water content of the air is not saturated in most weather, and the energy consumption is extremely low; the air supply temperature of the atmosphere is fully utilized to approach the dew point temperature of the air, and the temperature is reduced more; the supplied air is not humidified by water spraying, so that the moisture content is not changed, and the problems of overlarge humidity are avoided; the interior of the box is made of metal materials, so that the box is not deteriorated after long-term use.

Description

Dew point evaporation type air supply device
Technical Field
The invention relates to the technical field of air conditioner refrigeration, in particular to a dew point evaporation type air supply device.
Background
In a high-temperature environment, in order to ensure the comfort of personnel, an electric refrigeration air conditioner is mainly used, the refrigeration coefficient is 2.5-5.0 generally, a large amount of electric power is consumed, and especially, the electricity shortage is frequently caused in many places in summer.
Some comfortable air conditioners with relaxed requirements on temperature and humidity utilize the difference between dry-bulb temperature and wet-bulb temperature when the water content of air is not saturated, and use a water spraying direct evaporation mode for cooling air supply, namely a commonly-called water air conditioner, can save some electric power, but have important defects: firstly, the air supply temperature is most approximate to the wet bulb temperature, and the temperature is not reduced too much; secondly, the supplied air is humidified by water spraying, and the humidity is too high, so that personnel are uncomfortable and the equipment is damp; and organic materials are used in the interior, so that the interior can mildew and grow bacteria after long-term use, the health of people is influenced, and the like. Therefore, there is room for improvement.
Disclosure of Invention
In view of the shortcomings of the prior art, the main object of the present invention is to provide a dew point evaporation type air supply device which can overcome the problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a dew point evaporation type air supply device comprises a heat preservation shell, wherein an air inlet, an air filter, an air induction chamber, a separation chamber, an isolated air heat exchanger, an air seepage type air heat exchanger, an air outlet and an air supply outlet are sequentially arranged on the heat preservation shell; the compartment cavity includes the baffle, and the air is inhaled and is sent into the compartment cavity and divide into exhaust flow and supply-air flow by the fan that draws in the compartment after air cleaner purifies, the top of heat preservation casing is provided with atomizer, the bottom of heat preservation casing is provided with water receiving water supply installation, exhaust flow through atomizer spray cooling back in isolated air heat exchanger with supply-air flow heat exchange, supply-air flow temperature reduction and infiltration type air heat exchanger after isolated air heat exchanger, partial supply-air flow that gets into infiltration type air heat exchanger mixes and passes through atomizer spray cooling with the exhaust flow through the hole that oozes wind, then gets into infiltration type air heat exchanger and supply-air flow through the heat exchange, and dry supply-air flow is sent out the use through the supply-air outlet, and the exhaust flow is discharged through the exhaust outlet.
Preferably, isolated type air heat exchanger includes the framework that top apron, prism and top apron turn-ups are constituteed, be provided with a plurality of interval and the perpendicular air supply heat exchange board and the air exhaust heat exchange board that sets up in the horizontal direction in the framework, air supply heat exchange board and air exhaust heat exchange board are provided with the fin that a plurality of equidistant setting, form the straight channel between two adjacent fins.
Preferably, ooze wind type air heat exchanger includes the framework that top apron, prism and top apron turn-ups are constituteed, be provided with a plurality of interval and at the perpendicular air supply heat exchange plate and the air exhaust heat exchange plate that set up of horizontal direction in the framework, air supply heat exchange plate and air exhaust heat exchange plate are all provided with the fin that a plurality of equidistant setting, form the straight passageway between the two adjacent fins, are located and are provided with a plurality of on the straight passageway of air supply heat exchange plate and ooze the wind hole.
Preferably, the spraying means comprises a water pipe with a regulating valve and a spraying nozzle facing the insulation type air heat exchanger and the air-infiltration type air heat exchanger.
Preferably, the water receiving and supplying device comprises a water tank arranged below the isolated air heat exchanger and the air-seepage type air heat exchanger, and a circulating water pump connected with a water pipe is arranged in the water tank.
Preferably, a sewage draining pipe and a liquid level controller are arranged in the water tank.
Preferably, the air outlet is provided with an air exhaust regulating valve, and the air supply outlet is provided with an air supply regulating valve.
Preferably, a base is arranged below the heat preservation shell.
Compared with the prior art, the invention has the advantages that the enthalpy difference, namely the difference between the dry bulb temperature, the wet bulb temperature and the dew point temperature when the water content of the air is not saturated in most weather, is utilized, and the energy consumption is extremely low; the air supply temperature of the atmosphere is fully utilized to approach the dew point temperature of the air, and the temperature is reduced more; the supplied air is not humidified by water spraying, so that the moisture content is not changed, and the problems of overlarge humidity are avoided; the interior of the box is made of metal materials, so that the box is not deteriorated after long-term use.
Drawings
Fig. 1 is a schematic structural view of a dew point evaporative air supply device according to the present invention;
FIG. 2 is a partially exploded view of an insulated air heat exchanger of a dew point evaporative air supply of the present invention;
fig. 3 is a partially exploded view of an air-bleeding type air heat exchanger of a dew point evaporative air supply of the present invention.
Fig. 4 is a schematic view of the structure of the blast heat exchanger plate of fig. 3.
In the figure: 1. a heat-insulating shell; 2. an air inlet; 3. an air filter; 4. an air induction chamber; 5. a separation chamber; 6. an insulated air heat exchanger; 7. a wind-bleed air heat exchanger; 8. an air outlet; 9. an air supply outlet; 10. a partition plate; 11. a water pipe; 12. a spray nozzle; 13. a water tank; 14. a water circulating pump; 15. a blow-off pipe; 16. a liquid level controller; 17. an air exhaust regulating valve; 18. an air supply regulating valve; 19. a base; 20. A top cover plate; 21. a prism; 22. flanging the top cover plate; 23. an air supply heat exchange plate; 24. an air exhaust heat exchange plate; 25. ribs; 26. a straight channel; 27. and (4) air seepage holes.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, a dew point evaporation type air supply device comprises a heat preservation shell 1, wherein an air inlet 2, an air filter 3, an induced draft chamber 4, a separation cavity 5, an isolated air heat exchanger 6, an air seepage type air heat exchanger 7, an air outlet 8 and an air supply outlet 9 are sequentially arranged on the heat preservation shell 1; the air conditioner is characterized in that the separation cavity 5 comprises a partition plate 10, air is purified by an air filter 3 and then is sucked by a fan in the separation chamber and sent into the separation cavity 5 to be divided into exhaust air flow and air supply flow, a spraying device is arranged at the top of the heat insulation shell 1, a water receiving and water supplying device is arranged at the bottom of the heat insulation shell 1, the exhaust air flow is sprayed by the spraying device to be cooled and then is subjected to heat exchange with the air supply flow in the isolation type air heat exchanger 6, the air supply flow is cooled after passing through the isolation type air heat exchanger 6 and then enters the air seepage type air heat exchanger 7, part of the air supply flow entering the air seepage type air heat exchanger 7 is mixed with the exhaust air flow through an air seepage hole 27 and is sprayed and cooled by the spraying device, then enters the air seepage type air heat exchanger 7 and is subjected to heat exchange with the air supply flow, the dried air supply flow is.
Preferably, the isolated air heat exchanger 6 includes a frame body composed of a top cover plate 20, a prism 21 and a turned-over edge 22 of the top cover plate, a plurality of air supply heat exchange plates 23 and air exhaust heat exchange plates which are arranged vertically in a horizontal direction and spaced apart from each other are arranged in the frame body, a plurality of fins which are arranged at equal intervals are arranged on each of the air supply heat exchange plates 23 and the air exhaust heat exchange plates, and a straight channel is formed between two adjacent fins.
Preferably, the air-permeable air heat exchanger 7 includes a frame body composed of a top cover plate 20, a prism 21 and a top cover plate flanging 22, a plurality of air-supply heat exchange plates 23 and air-exhaust heat exchange plates 24 which are arranged at intervals and vertically in the horizontal direction are arranged in the frame body, a plurality of fins 25 which are arranged at equal intervals are arranged on each of the air-supply heat exchange plates 23 and the air-exhaust heat exchange plates 24, a straight channel 26 is formed between two adjacent fins 25, and a plurality of air-permeable holes 27 are arranged on the straight channel 26 of the air-supply heat exchange plates 23.
Preferably, the spraying means comprises a water pipe 11 with a regulating valve and a spraying nozzle 12 facing the insulated air heat exchanger 6 and the air-permeated air heat exchanger 7.
Preferably, the water receiving and supplying device comprises a water tank 13 arranged below the isolated air heat exchanger 6 and the air-seeping air heat exchanger 7, and a circulating water pump 14 connected with the water pipe 11 is arranged in the water tank 13.
Preferably, a drain pipe 15 and a liquid level controller 16 are arranged in the water tank 13.
Preferably, an exhaust air regulating valve 17 is arranged at the exhaust outlet 8, and an air supply regulating valve 18 is arranged at the air supply outlet 9.
Preferably, a base 19 is arranged below the heat preservation shell 1.
The scheme of the invention is based on the principle that: when the water content of air is not saturated, there is a difference between the dry bulb temperature, the wet bulb temperature and the dew point temperature, i.e., an enthalpy difference. The enthalpy difference of air is utilized to absorb heat when evaporating water, and the air (or water) is cooled to the temperature close to the dew point and then is sent to the required occasion. In most weather in the weather, the relative humidity of air does not exceed 85%, namely, a large temperature difference exists, and the air can be utilized, so that low-energy-consumption and high-efficiency aeration cooling is realized. The heat of vaporization of water, 2,418.4kj/kg @35 ℃ and 1atm, is much greater than the heat of temperature difference.
The working process is as follows:
the outdoor air is purified by the air filter 3 and then is sucked by the fan, and then is divided into two flows, namely exhaust flow and supply flow; the air exhaust side is sprayed and humidified, and because the air exhaust side is in an unsaturated state, water is evaporated to absorb heat, so that the temperature is reduced and gradually approaches to the wet bulb temperature of air, and meanwhile, efficient heat exchange is performed with air supply in the isolated air heat exchanger 6, so that the air supply flow also approaches to the air exhaust temperature (the moisture content is unchanged) after temperature reduction; then, the air enters the air-permeable air heat exchanger 7, part of the dry air flow permeates a certain flow rate to the air exhaust side through the air-permeable holes 27, the air exhaust side continues to spray and humidify, the dry air is obtained, so that moisture is continuously absorbed to release vaporization heat for cooling, the vaporization heat is far greater than temperature difference heat, the air exhaust flow gradually approaches the dew point temperature of the air, meanwhile, the air exhaust flow carries out high-efficiency heat exchange with the air flow, and the air flow is also close to the air exhaust temperature (the moisture content is unchanged) after being cooled again; and then the high-humidity exhaust air is discharged, and the air supply is output to the occasion where the air supply is needed for use. The spraying device enables the moisture and the air to be fully mixed, the water is evaporated to absorb heat, and the temperature of the air is reduced. As shown in fig. 1, the flow direction of the supply air flow is a straight line with arrows, and the flow direction of the exhaust air flow is indicated by a single arrow.
Compared with the traditional electric refrigeration air conditioner, the scheme realizes cooling air supply with less power consumption and water consumption; compared with the traditional electric refrigeration air conditioner, the air conditioner can be used in a non-sealed environment; compared with a water air conditioner which is directly evaporated, the air supply temperature approaches to the dew point temperature, and the cooling air supply at lower temperature is improved; compared with a water air conditioner which is directly evaporated, the final air supply is not humidified, so that the influence of overlarge humidity is avoided; the ventilation of the space can be realized efficiently, and particularly the requirements of fresh air supply and ventilation times are met; through-flow air supply of the space can be realized, and dust, harm, heat and the like of the space can be efficiently removed; wholly adopt the metal construction, do not breed serial problems such as bacterium to the life-span is more of a specified duration, convenient operation, it is simple to maintain.
The invention developed for overcoming the drawbacks of the prior art has the following advantages: the enthalpy difference, namely the difference between the dry bulb temperature, the wet bulb temperature and the dew point temperature when the water content of air is not saturated in most weather, is utilized, and the energy consumption is extremely low; the air supply temperature of the atmosphere is fully utilized to approach the dew point temperature of the air, and the temperature is reduced more; the supplied air is not humidified by water spraying, so that the moisture content is not changed, and the problems of overlarge humidity are avoided; the interior of the box is made of metal materials, so that the box is not deteriorated after long-term use.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (8)

1. A dew point evaporation formula air feed device which characterized in that: the air-permeable heat-insulating air conditioner comprises a heat-insulating shell, wherein an air inlet, an air filter, an air introducing chamber, a separation chamber, an isolated air heat exchanger, an air-permeable air heat exchanger, an air outlet and an air supply outlet are sequentially arranged on the heat-insulating shell; the compartment cavity includes the baffle, and the air is inhaled and is sent into the compartment cavity and divide into exhaust flow and supply-air flow by the fan that draws in the compartment after air cleaner purifies, the top of heat preservation casing is provided with atomizer, the bottom of heat preservation casing is provided with water receiving water supply installation, exhaust flow through atomizer spray cooling back in isolated air heat exchanger with supply-air flow heat exchange, supply-air flow temperature reduction and infiltration type air heat exchanger after isolated air heat exchanger, partial supply-air flow that gets into infiltration type air heat exchanger mixes and passes through atomizer spray cooling with the exhaust flow through the hole that oozes wind, then gets into infiltration type air heat exchanger and supply-air flow through the heat exchange, and dry supply-air flow is sent out the use through the supply-air outlet, and the exhaust flow is discharged through the exhaust outlet.
2. A dew point evaporative air supply as claimed in claim 1, wherein: isolated type air heat exchanger includes the framework that top apron, prism and top apron turn-ups are constituteed, be provided with a plurality of interval and the perpendicular air supply heat exchange plate and the heat exchange plate of airing exhaust that sets up in the horizontal direction in the framework, air supply heat exchange plate and the heat exchange plate of airing exhaust are all gone up and are provided with the equidistant fin that sets up of a plurality of, form straight passageway between the two adjacent fins.
3. A dew point evaporative air supply as claimed in claim 1, wherein: ooze wind type air heat exchanger includes the framework that top apron, prism and top apron turn-ups are constituteed, be provided with a plurality of interval and at the perpendicular air supply heat exchange plate and the heat exchange plate of airing exhaust that sets up of horizontal direction in the framework, air supply heat exchange plate and the heat exchange plate of airing exhaust all are provided with the equidistant fin of setting of a plurality of, form the through passage between the two adjacent fins, are located to be provided with a plurality of on the through passage of air supply heat exchange plate and ooze the wind hole.
4. A dew point evaporative air supply as claimed in claim 1, wherein: the spray device includes a water pipe with a regulating valve and spray nozzles facing an insulated air heat exchanger and an air-permeated air heat exchanger.
5. A dew point evaporative air supply as claimed in claim 4, wherein: the water receiving and supplying device comprises a water tank arranged below the isolated air heat exchanger and the air seepage type air heat exchanger, and a circulating water pump connected with a water pipe is arranged in the water tank.
6. A dew point evaporative air supply as claimed in claim 5, wherein: and a sewage discharge pipe and a liquid level controller are arranged in the water tank.
7. A dew point evaporative air supply as claimed in claim 1, wherein: the air outlet is provided with an air exhaust adjusting valve, and the air supply outlet is provided with an air supply adjusting valve.
8. A dew point evaporative air supply as claimed in claim 1, wherein: a base is arranged below the heat-insulating shell.
CN202011242995.4A 2020-11-09 2020-11-09 Dew point evaporation type air supply device Pending CN112460701A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011242995.4A CN112460701A (en) 2020-11-09 2020-11-09 Dew point evaporation type air supply device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011242995.4A CN112460701A (en) 2020-11-09 2020-11-09 Dew point evaporation type air supply device

Publications (1)

Publication Number Publication Date
CN112460701A true CN112460701A (en) 2021-03-09

Family

ID=74826795

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011242995.4A Pending CN112460701A (en) 2020-11-09 2020-11-09 Dew point evaporation type air supply device

Country Status (1)

Country Link
CN (1) CN112460701A (en)

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