CN1208531C - Air source radiation cooling/heating supply suspension roof with ventilation - Google Patents

Abstract

The present invention relates to a radiative cold / heat supply ceiling board with a ventilating air source, which belongs to the field of an air conditioning system of a cold / heat supply ceiling board. A high hydrophilic nanostructure film is coated on the surface of the cold / heat supply ceiling board, small holes are arranged on the ceiling board, and the hole diameter of each small hole is from 0.1mm to 5mm. The air conditioning system is a radiative convection type air conditioning system of an air type cold board. When air or hot air in low temperature and low moisture content which is treated by an air treating device of the air conditioning system flow through the space above the cold / heat supply ceiling board, a cold or heat radiation surface with a large area of which the temperature is lower than or higher than the room temperature is formed, the heat convection can be carried out, and the air or the hot air which is led by the small holes on the ceiling board can prevent from condensation when the surface of the cold / heat supply ceiling board is refrigerated. Fresh air is led into rooms through the small holes, so the indoor air quality is ensured, and the comfort degree of the rooms is enhanced.

Description

The air source radiation cooling/heating supply ceiling board that band ventilates

[technical field]

The invention belongs to cold/heat supply and hang a plate air-conditioning system field, specially refer to the air source radiation cooling/heating supply ceiling board that band ventilates.

[background technology]

It mainly is to realize by convection type that at present traditional air-conditioning system is regulated interior temperature.The shortcoming of this air conditioning mode is that comfort is relatively poor.Air-conditioning system based on radiation mode can be improved air conditioner comfort greatly.But when when refrigeration, when equaling the air dew point temperature as the surface temperature of cold/heat supplying roof plates, water vapour just can form condensation in the surface condensation of metal cold/heat supplying roof plates.Condensation not only can produce the cold drawing dripping phenomenon, but also can have influence on heat-transfer effect, causes refrigeration and practicality not good enough.Therefore, develop the material that prevents dewfall, drips and have good heat transfer capacity and be used for preparation cooling top board, realizing with the radiation mode being that main to carry out exchange heat be very important.

Emerging in recent years cold/heat supplying roof plates air-conditioning system has increased radiation ring heat, improved by the comfort level of air-conditioned room, and its refrigerant is a chilled water.In this kind air-conditioning system, it is a crucial accessory that cold/heat supply hangs a plate, and the quality of its quality directly has influence on by the refrigeration of air-conditioned room or heating effect.For this reason, people constantly make improvements, as application number is the disclosed cold/heat supplying roof plates with water source and radiation of CN00120766, CN00120764., CN00243552 and CN00243554, but above-mentioned patent application is all with the media of water as interchange of heat, to realize the purpose of radiation heat conduction.When water being placed on the top board in room, exist the problem of leaking inevitably.In order to solve the seepage of water, just require to hang the existing good heat transfer performance of prong material, have firm, seamless characteristic again.Simultaneously, in order to send into new wind, also need an additional cover ventilation system, this has just improved the cost of this top board greatly.

[summary of the invention]

The defective of the cold/heat supplying roof plates that is adopted when the objective of the invention is to overcome with water as heat-exchange medium, providing a kind of is cold and hot matchmaker with air, adopts the air source radiation cooling/heating supply ceiling board of the band ventilation that radiation combines with convection current.

The air source radiation cooling/heating supply ceiling board that band of the present invention ventilates is characterized in that: the surface at cold/heat supplying roof plates has the Superhydrophilic nano structural membrane, and micropore is arranged on top board.

Described ceiling board sheet material is aluminium, iron, titanium, manganese or zinc light metal.

The aperture of described micropore is 0.1mm-5mm.

Described film is the oxide of aluminium, iron, titanium, manganese or zinc light metal.

The preparation method of Superhydrophilic nano structural membrane is that the method by electrolysis forms super-hydrophilic film on metal sheet at normal temperatures, and the step of this method comprises:

(1) purity that has that will select for use cleans up back standby at the metal material more than 70%;

(2) preparation electrolyte solution, concentration is controlled at 0.1-5M:

(3) with metal material as anode, graphite or platinum carry out electrolysis as negative electrode, treat metal material surface form layer of even, when having the nano structure membrane of obvious metallic luster, electrolysis can stop, described nanometer particle size is between the 5-200nm:

Described electrolyte is sulfuric acid, nitric acid, perchloric acid, hydrochloric acid, potassium hydroxide or NaOH.

Described step (3) voltage is adjusted in 1V one 50V scope, and current density is 0.1A-5A, and electrolysis time is 1 minute-60 minutes.

The present invention at first prepares the Superhydrophilic nano structural membrane at the material surface as cold/heat supplying roof plates, when condensing on the cold/heat supplying roof plates, can sprawl into moisture film rapidly, and not form water droplet as the water vapour chance is cold, both prevent the dewfall dripping phenomenon, helped the rapid evaporation of water again.In addition, super hydrophilic nano structure membrane surface has increased the degree of sprawling of water, thereby compares with undressed metal material, and it can hold many relatively water that coagulates, prolonged greatly and coagulated the time that water droplet falls, simultaneously because evaporation of water has been drawn the heat of surrounding environment again.

The present invention to its indoorly variously give, backwind tube, air port all be suitable for.The present invention can form with various refrigeration (heating) method and relevant device used airhandling equipment.

When top board of the present invention is installed, only need before the air outlet of air-conditioning, to install top board of the present invention, its top board can be lifted under the roof, at an end of the wall air outlet that installs an air-conditioner, install back the air port on the wall on opposite, the air or the hot air of the low water capacity of the low temperature of sending through air-conditioning flow through at the top board superjacent air space: or at top board and between the walls one deck dividing plate is arranged, the loop of the wind of sending with the formation air-conditioning.Give like this, return air inlet can be on wall on one side; Or the air-conditioning air supply system made the casing of a casing or band dividing plate, its tank wall towards room one side is a top board of the present invention.The present invention send, the return air inlet position can place in indoor bottom, middle part, top, side wall and the furred ceiling; Height and inner blower, return air duct all can freely form.

When top board of the present invention is installed, during as ventilating duct, insulation layer can be installed on wall further with wall; Or insulation layer is installed on casing.

Air-conditioning system of the present invention is an air type cold drawing radiation and convection type air-conditioning system, its for, cold/heat supply hang a plate by surface preparation the sheet metal of super hydrophilic nano structure membrane make, the air or the hot air of the low water capacity of the low temperature after air-conditioning air-treating unit is handled, when the cold/heat supplying roof plates superjacent air space flows through, just form low or be higher than the cold or surface thermal radiation of large tracts of land of room temperature, can carry out heat convection; And send into indoor (all or part of) cold or hot air by micropore on the plate, form on the one hand to being that main convection current is the cooling or the heat supply of assisting with radiation by air-conditioned room, can control indoor relative humidity again on the other hand, prevent that cold/heat supply from hanging a plate surface issuable condensation when refrigeration.And send into outdoor fresh air by micropore to the room, guaranteed indoor air quality again, improved the comfort level in room, and sent into new wind along band.Utilize this mode and material to manufacture cold/heat supply and hang a plate, promptly can be used for air-conditioning refrigeration in summer and can be used for winter heating again.Its cold/heat supplying roof plates can replace indoor section finishing furred ceiling again.

[description of drawings]

Fig. 1. ceiling board scheme of installation in the embodiment of the invention 1.

Fig. 2. ceiling board scheme of installation in the embodiment of the invention 2.

Fig. 3. hang a plate scheme of installation in the embodiment of the invention 3.

Fig. 4. ceiling board scheme of installation in the embodiment of the invention 4.

Fig. 5. ceiling board scheme of installation in the embodiment of the invention 5.

Fig. 6. ceiling board scheme of installation in the embodiment of the invention 6.

Reference numeral

A. return air inlet B. ajutage C. insulation layer D. airhandling equipment

E. return air space F. air-supply space G. sends into indoor air

[specific embodiment]

Embodiment one,

See also accompanying drawing 1.The one aluminium ceiling board with the super hydrophilic nano structure membrane of alumina is arranged before the air outlet of air-conditioning, it is lifted under the roof, the skin of ajutage B has insulation layer C, return air inlet A is in the bottom of wall, the air of the low water capacity of the low temperature of sending through airhandling equipment D flows through at the top board superjacent air space, forms the large tracts of land cold emission surface that is lower than room temperature; Be the micropore of 0.1mm by aperture on the ceiling board simultaneously, make the air of the low water capacity of low temperature enter the room, adjusted the temperature in room, improved the comfort level in room.When interior temperature is 17 ℃, humidity was greater than 90 o'clock, and top board can not produce the dewfall dripping phenomenon.

Embodiment 2

See also accompanying drawing 2.The one zinc ceiling board with the super hydrophilic nano structure membrane of zinc oxide is arranged before the air outlet of air-conditioning, it is lifted under the roof, the skin of ajutage B has insulation layer C, the air of the low water capacity of the low temperature of sending through airhandling equipment D flows through at the top board superjacent air space, forms the large tracts of land cold emission surface that is lower than room temperature; The aperture is the micropore of 1mm on the plate by hanging simultaneously, makes the air of the low water capacity of low temperature enter the room, has adjusted the temperature in room, has improved the comfort level in room.When interior temperature is 17 ℃, humidity was greater than 90% o'clock, and top board can not produce the dewfall dripping phenomenon.

Embodiment 3

See also accompanying drawing 3.Present embodiment is many rooms application example.Before the air outlet of air-conditioning, there is the aluminium with the super hydrophilic nano structure membrane of alumina to hang a plate, it is lifted under the roof, the skin of ajutage B has insulation layer C, the air of the low water capacity of the low temperature of sending through airhandling equipment D flows through at the top board superjacent air space, forms the large tracts of land cold emission surface that is lower than room temperature; Be the micropore of 0.5mm by aperture on the ceiling board simultaneously, make the air of the low water capacity of low temperature enter the room, adjusted the temperature in room, improved the comfort level in room.When interior temperature is 20 ℃, humidity was greater than 90% o'clock, and top board can not produce the dewfall dripping phenomenon.

Embodiment 4

See also accompanying drawing 4.Present embodiment is many rooms application example.The one aluminium ceiling board with the super hydrophilic nano structure membrane of alumina is arranged before the air outlet of air-conditioning, it is lifted under the roof, the skin of ajutage B has insulation layer C, the air of the low water capacity of the low temperature of sending through airhandling equipment D flows through at item plate superjacent air space, forms the large tracts of land cold emission surface that is lower than room temperature; Be the micropore of 0.1mm by aperture on the ceiling board simultaneously, make the air of the low water capacity of low temperature enter the room, adjusted the temperature in room, improved the comfort level in room.When interior temperature is 17 ℃, humidity is 95% o'clock, and top board can not produce the dewfall dripping phenomenon.

Embodiment 5

See also accompanying drawing 5.The one zinc ceiling board with the super hydrophilic nano structure membrane of zinc oxide is arranged before the air outlet of air-conditioning, it is lifted under the roof, the skin of ajutage B has insulation layer C, return air inlet A is in the bottom of wall, the air of the low water capacity of the low temperature of sending through airhandling equipment D flows through at the top board superjacent air space, forms the large tracts of land cold emission surface that is lower than room temperature; Be the micropore of 1mm by aperture on the ceiling board simultaneously, make the air of the low water capacity of low temperature enter the room, adjusted the temperature in room, improved the comfort level in room.When interior temperature is 17 ℃, humidity was greater than 85% o'clock, and top board can not produce the dewfall dripping phenomenon.

Embodiment 6

See also accompanying drawing 6.Before the air outlet of air-conditioning, there is the aluminium with the super hydrophilic nano structure membrane of alumina to hang a plate, it is lifted under the roof, the skin of ajutage B has insulation layer C, return air inlet A is in the bottom of wall, the air of the low water capacity of the low temperature of sending through airhandling equipment D flows through at the top board superjacent air space, forms the large tracts of land cold emission surface that is lower than room temperature; The aperture is the micropore of 0.5mm on the plate by hanging simultaneously, makes the air of the low water capacity of low temperature enter the room, has adjusted the temperature in room, has improved the comfort level in room.When interior temperature is 17 ℃, humidity was greater than 90% o'clock, and top board can not produce the dewfall dripping phenomenon.

Claims (6)

1. air source radiation cooling/heating supply ceiling board with ventilation is characterized in that: with the Superhydrophilic nano structural membrane, and micropore is arranged on the surface of described cold/heat supplying roof plates on top board.

2. ceiling board according to claim 1 is characterized in that: described ceiling board sheet material is aluminium, iron, titanium, manganese or zinc light metal.

3. ceiling board according to claim 1 is characterized in that: the aperture of described micropore is 0.1mm-5mm.

4. ceiling board according to claim 1 is characterized in that: described Superhydrophilic nano structural membrane is that the method by electrolysis forms on metal sheet at normal temperatures, and the step of this method comprises:

(1) purity that has that will select for use cleans up back standby at the metal material more than 70%;

(2) preparation electrolyte solution, concentration is controlled at 0.1-5M;

(3) with metal material as anode, graphite or platinum carry out electrolysis as negative electrode, treat metal material surface form layer of even, when having the nano structure membrane of obvious metallic luster, electrolysis can stop, described nanometer particle size is between the 5-200nm;

Described electrolyte is sulfuric acid, nitric acid, perchloric acid, hydrochloric acid, potassium hydroxide or NaOH.

5. ceiling board according to claim 4 is characterized in that: described step (3) voltage is adjusted in the 1V-50V scope, and current density is 0.1A-5A, and electrolysis time is 1 minute-60 minutes.

6. ceiling board according to claim 4 is characterized in that: described metal material is aluminium, iron, titanium, manganese or zinc light metal.