CN1051078A - The method and apparatus of air-conditioning - Google Patents

Abstract

A kind of adjusting in heat exchange type heat exchanger (63) enters the air-conditioning method of air themperature, the air that enters and the air of discharge pass through this heat exchanger with the relation of heat exchange, when the air that enters need cool off, on the vertical board wall of exhaust air channel (74), spray water, and when the air that enters need heat, with burner (87), preferably adopt coal gas burner, air heat to discharging near the inlet of exhaust passage (74).The heat exchange type heat exchanger (63) of realizing this method comprises the burner (87) of spraying water and forming the device of moisture film and be used for discharging in the heating of the front of these feeder connections air to the board wall of exhaust passage (74).

Description

The method and apparatus of air-conditioning

The invention relates to air conditioning, more particularly, is the method and apparatus of on temperature the air of coming in being regulated about in a ventilating system or air-conditioning system.

As everybody knows, in ventilating system or air-conditioning system, to reclaim the heat of discharging air, utilize it to heat the air of coming in.This heat recovery is finished by a heat exchange type heat exchanger, and it has the gas channel that two components separate, one group of air that passage is used to come in, and the air that another group passage is used to discharge.First group of gas channel and second group of gas channel are interlaced, and the thin Heat Conduction Material dividing plate of middle quilt is separated.When discharging air ratio when coming in air heat, discharge the air that air will be passed to into heat by heat exchanger gas channel dividing plate.

In addition, everybody is familiar with but the method that seldom is used for actual practice is by making in the past by heat exchanger and discharge air and become wet method and cooled off the air that enters discharging air.Like this, the air that enters has been cooled, and the air that enters in the heat exchanger is cooled down.

An object of the present invention is to provide a kind of improving one's methods and installing of discharged air temperature of regulating, adopt toward discharging the way of directly spraying water on the gas channel that air passes through and cool off the air of discharge.Preferably come the feed cooling water like this, promptly the water of confession to form one deck moisture film continuously, the whole surface of discharging the channel partition that air passes through all water cover.

The unnecessary water that flows out from exhaust air channel can collect, and then turns back to the porch of exhaust air channel.The another one way is that unnecessary water is sprinkled upon on the roof of building of the device that installs an air-conditioner, and in this aircondition heat exchanger is housed.

Except having cooled off the air of discharging effectively thereby also having cooled off the air that enters, water with the aforesaid way feed also has a very effective benefit, that is exactly that it can make the wall of the passage of discharging air keep clean, thereby can avoid dust deposit consequently to reduce the efficient of heat exchanger.Under the situation of breaking out of fire, these water can also protect heat exchanger unlikely overheated and malfunctioning.

Some the time, particularly in cold season in winter, may wish the air that heats, enter to make its temperature be higher than the temperature that only can reach with the recuperation of heat of discharging air.In the aircondition known to everybody, usually be to carry out this supplementary heating with electric heater, this electric heater is placed in the intake stack of heat exchanger downstream direction, and when needs carried out supplementary heating, will switch on made electric heater carry out work.

But, it is always feasible and easily to carry out this supplementary heating with electric heater.

Another object of the present invention provides a kind of simply and effectively supplementary heating method of not using electric energy with regard to being, a kind of device of realizing this method will be provided simultaneously.

According to the present invention, the way that reaches this purpose is to enter before the exhaust air channel of heat exchanger discharging air, in the porch it is heated, this heating is to adopt a burning to chew, and preferably burns to chew with coal gas and carries out.

The supplementary heating that enters air comes to this and discharges by heating that the mode of air carries out, and discharge air in entering heat exchanger with enter air and carry out heat exchange and chew with burning in the past and heated.Because discharge the pipeline of air and gas channel and be with to enter air separated fully, therefore the air that enters just can not be subjected to the pollution of burning gases or combustion product.

Contrast the following drawings is described processing method of the present invention and device in detail now.

Sectional schematic diagram among Fig. 1 is the part sectional elevation of the air-conditioning equipment in the invention process;

Shown in Figure 2 is the plane of the aircondition among Fig. 1;

Shown in Figure 3 is the heat exchange type heat exchanger of the aircondition among Fig. 1 and Fig. 2, along the section partial enlarged drawing of III among Fig. 1-III hatching;

Shown in Figure 4 is the heat exchanging fin of the heat exchanger among Fig. 3 or the further enlarged drawing of heat exchange cassette;

Shown in Figure 5 is the system schematic of second embodiment of aircondition of the present invention;

Fig. 6 and Fig. 7 are the vertical cut-away schematic views of the heat exchanger of aircondition shown in Figure 5, and two figure are respectively the horizontal and vertical sections of heat exchanger gas channel.

The diagram aircondition is used for supply air in suite, office or industrial premises, and is likely in the sealed space that is installed in suite or housing thing top.In Fig. 1, with chain-dotted line represent the to install an air-conditioner border of this seal cavity of device.

With reference to Fig. 1-4, the air-flow that enters air that is suitable for use as of coming in from the outside enters described seal cavity by inlet K, and this inlet K offers on a sidewalls in this space, and air enters the inlet of aircondition and checks part 11.This is the first on the air-flow direction of entering of aircondition, and in Fig. 1 and Fig. 2, this is a first from left to right.

Back in inlet and inspection part 11 is the heat-exchangers of the plate type 12 of an AC type, and the air that enters enters air duct by it in the horizontal direction, and the details of relevant this heat exchanger will be explained below.Be that an electric heater 13 is used for air is carried out supplementary heating subsequently, just the air that air duct comes out that enters from heat exchanger heated (only just needing this supplementary heating usually in the winter of cold).In the back of heater 13 flap arrangement 14 is housed and is used for closing gas handling system, be a water spray damping device 15 more backward, an air inlet blower fan part 16, it is equipped with a typhoon machine 17, be exactly a noise reduction and filtration fraction 18 at last, a muffler 19 and a filter 20 are housed here, and this filter can connect or cut out.

Outside at the exhaust air channel of heat exchanger 12 is the inlet casing 21 of gas extraction system, and this casing just is contained in the top of heat exchanger, and the air of discharge is at the exhaust air channel of vertical direction by heat exchanger.Inlet casing 21 is arranged on the vertical wall place of one side, so that be connected with exhaust duct 22, is opening below the casing, and it is connected with the vertical exhaust air channel of heat exchanger.

Other parts of exhaust system also comprise a collecting box 23, it be positioned at heat exchanger below, keep connected relation with the exhaust air channel of heat exchanger, also has an exhaust blower 24 in addition, the inlet scoop of exhaust blower links to each other with collecting box 23, and its pressure end then is connected with exhaust duct 25, and this exhaust duct passes above-mentioned inlet and checks part 11, like this, between the air of discharging and the air that enters heat exchanger 12 by inlet and inspection part 11, just can carry out heat exchange.

Inlet can directly link to each other with air inlet blower fan part 16 by a bypass duct 27 with inspection part 11, at inlet and inspection part 11 theres an inspection opening 26 is arranged, and on bypass duct, be provided with a flashboard 28, therefore in needs, can make a part of extraneous air temporarily directly lead to air inlet blower fan part there at least.Do the efficient that may temporarily reduce heat exchanger like this, thereby the danger that reduces to freeze can stop perhaps the temperature that enters air to rise so high under the low situation of ambient temperature.

Fig. 3 and shown in Figure 4 be the detail drawing of conducting-heat elements in the heat exchanger 12.

Some tabular plane box bodys 30 side by side constitute a casing.Shown in Figure 4 is from entering the mouth and checking the box body 30 that part 11 is seen over there.These box bodys vertically are installed in the framework 31, between the box body at intervals.The level and smooth metal board wall 32 and 33 in the box body outside defines the passage 34 of some vertical discharge air, no matter these width of channel are (being to measure in vertical direction in Fig. 2) on its height or (being to measure in the horizontal direction in Fig. 2) all is uniformity on its length, and have level and smooth side surface.

As shown in Figure 4, the board wall 32,33 of each box body 30 all is to make with individual sheet metal strip, and these bands are turned back on box body two tube-like pieces 35 up and down, and the two ends of band overlap mutually in a side of box body.Between box body board wall 32,33, have bending or be undulatory sheet metal strip 36 and together extend with box body in the horizontal direction, extend to another tube-like piece from a tube-like piece 35 always.The air that enters is exactly to pass through in the smooth passage 37 of the horizontal direction that forms like this, and a side of passage 37 is sheet metal strips 36 of bending, and opposite side is the inwall of box body 32,33.

The bond end that constitutes the sheet metal strip of box body board wall 32,33 partly will link together securely at whole overlap.In addition, sheet metal strip will and the sheet metal strip of tube-like piece 35 and bending and framework 31 and box body between all couple together securely.A kind of Polyurethane adhesive is preferably used in the connection at these positions.

Because the box body 30 and the method for attachment of this structure of being said above adopting, can accomplish not have air after heat exchanger assembles up and 34 flow to the situation of inlet channel 37, so also be discharged from the air-polluting problem with regard to not entering air from the exhaust passage.Because heat exchanger is all very level and smooth on the surface of airflow direction, therefore do not need to take any maintenance in operation to enter the clean special measure of air duct, also be like this even do not have under the situation of air cleaner at entrance side.Verified, this heat exchanger can long-term work (several years) and on the board wall of inlet channel, can not form conspicuous dust deposit.In the ordinary course of things, the airborne dustiness of discharge is bigger than outside air, but because the surface of exhaust passage 34 also is level and smooth, thus to illustrate as following, these passages also can keep totally and also the method for keeping a public place clean not only simply but also economy.

The one group of water spray nozzle 40 that is installed in the inlet casing 21 of heat exchanger 12 is connected with a upper hose 41, the valve (magnetic valve) 42 of electric operation is housed on the pipeline, the position of this group nozzle is to consider like this, the water of their ejections is very thin current, can all spoon water to the surface on the whole section in exhaust passage, make the thin water film that has one deck to flow downward be covered with the whole surface of both sides, exhaust passage board wall.The collecting box 23 that is positioned at heat exchanger box body 30 belows can be collected the air of discharge and unnecessary water, and it is used as a tank.So it is to be connected with the water pipe of a maintenance constant voltage by a water intaking valve (not showing on the figure) by float control liquid level, keep constant water level in the collecting box by this water intaking valve.By an electric water pump 43 water in the collecting box is extracted out, and when valve 42 is opened, water is sent back in the upper hose 41 of nozzle.

Under the control of electrical control and monitoring system (not showing on the figure) water is fed in the exhaust passage 34 of heat exchanger 12, above-mentioned automatically controlled and monitoring system is the part with air-conditioning equipment of above-mentioned air processor.Must spray water to discharging air when the air that enters need cool off, the board wall that washes away exhaust passage 34 at needs also must be sprayed water in 32,33 o'clock in addition.For can combining with the water spray of previous purpose, the water spray of a back purpose carries out, but, be a back purpose, also can in a long or short time, spray water individually that this depends on actual content of discharging dust in the air or the size of estimating content.Because the vertical board wall of exhaust passage 34 is level and smooth, and disposed the nozzle 40 of water spray in the upstream of heat exchanger box body 30 side, thus just can guarantee that the passage of discharge air is very clean, thus the high efficiency of maintenance heat exchanger work.

The dust deposit that 34 board wall upper punches brush down from the exhaust passage just can be removed away it in maintenance or when checking air-conditioning equipment collecting box 23 from collecting box.

Other one group of water spray nozzle (not showing on the figure) also is housed in inlet casing 21, and it is connected to separately on the water source by a valve (not showing on the figure), and this valve is controlled by a fiery detector or smoke detector.This group nozzle is arranged to the form of sprinkler; spraying water under the situation of breaking out of fire, heat exchanger is unlikely to be burnt out to protect; among thereby the air that also can avoid discharging flows to the admission line system from exhaust pipe system; under the situation of catching fire; might be mixed with flue gas and/or poisonous gas in the air of discharging, therefore prevent that the air mixed flow from being very important.Because heat exchanger has been taked this safeguard measure, thereby just might save the bypass channel of discharging air, generally all stipulated in fire safety rules: surpass 600 ℃ temperature if heat exchanger can not bear, then heat exchanger must be provided with bypass channel.So,, just might manufacture heat exchanger, and the discharge bypass passage across heat exchanger need not be set with aluminium according to the present invention.

If the control appliance of valve 42 is arranged like this, promptly work as breaking out of fire or temperature above just opening valve 42 automatically and start water pump 43 later, the so top defencive function of being said also can be realized by nozzle 40, upper hose 41 and water pump 43 these systems.The another one way is except with water pump 43 is connected, and nozzle 40 is connected with the main suit pipeline more individually, and a normally closed valve is arranged here, and it is controlled by fiery detector or smoke detector.

Being used for to entering the spray water device 15 of humidification of air also can be some water spray nozzles 45, and they are installed in the top of admission line, are connected with upper hose 46, the valve (magnetic valve) 47 of an electric operation is housed on water pipe and links to each other with water pump 43.Like this, the water supply of these nozzles is systems with the water supply of the nozzle system of exhaust passage 34 just.Below unnecessary water is collected in, flow in the collecting box 23 by drainpipe 48 then.Control by the top automatically controlled and monitoring system of saying to 15 water supply of water spray damping device.

Air inlet blower fan part 16 and its blower fan 17 can adopt general equipment, and there is a muffler 19 in the exit of blower fan 17, and this muffler has the section of pipeline, makes the appearance of an injector, and the surface is gone up and covered one deck sound-absorbing material within it.

When the air that enters does not require when filtering according to sanitary condition, that filter 20 just can, disconnected, general is not need filtered air the most of the time in 1 year, and in pollen season, because hygienic reason just need filter the air that enters.Therefore, in the whole working time of aircondition, except one relatively shorter period, generally be not need filter.Under the situation that filter 20 is housed (shown in filter 20 right and wrong determinate), want to disconnect filter or it is not worked, only need traversing carriage 50(admission line vertically on), it is just passable to open a wing passage, above-mentioned support 50 is used for supporting filter 51, support and fixing pipe section 52 interoperations.

Moving of support 50 can realize by means of any actuating device, and such as can be with general flashboard actuating device (not showing on the figure), it can automatically move, also can be by manually-operated.

Therefore why filter can disconnect in considerable time need not and don't can produce any having a strong impact on; be because extraneous air generally need thereby not filter for the former of health on the one hand; be owing to do not need to protect the top heat exchanger of being said 12 on the other hand by the way of filtering; this is because the board wall of the inlet channel 34 of heat exchanger is level and smooth at airflow direction, therefore is not easy to be covered by dust.

Except outside air temperature is too low, only heat not enough the time by heat exchanger 12 beyond, above-mentioned heater 13 does not generally need to use, and therefore can adopt common heater.But, the area of heating surface of heater should be level and smooth at air-flow direction, to avoid dust deposit in its surface.

The use of aircondition shown in Figure 5 is identical with the aircondition shown in Fig. 1-4 with configuration mode.

Enter a heat-exchangers of the plate type 63 as the outside air that enters air by a flap arrangement 61 and a filter 62.Except more following differences that will illustrate and difference, this heat exchanger is similar to the heat exchanger 12 that the front is said.

The air that enters by after the inlet channel of heat exchanger 63, just by a heater 64 and an air inlet blower fan 65, enters the space that need carry out air-conditioning in the horizontal direction then.

The air of discharging enters the inlet casing 68 that is arranged in the board-like device of heat exchanger 67 tops by exhaust brake panel assembly 66, and then from passing through the vertical exhaust passage of heat-exchangers of the plate type here downwards.The exhaust of coming out from heat-exchangers of the plate type 67 enters the collecting box 69 that is located at below the heat-exchangers of the plate type 67, is admitted to air exhauster 70 then therefrom and enters in the atmosphere of outside.If necessary, the portion of air of discharging from air exhauster can also be returned the admission line that air flashboard 71 enters heat exchanger 63 updrift sides by one.

In needs, the air of some discharge can be walked around heat exchanger 63 and directly lead to air exhauster 70 by means of bypass flap arrangement 72.

The heat exchanger of saying as the front 12, the plate apparatus 67 of heat exchanger 63 also is made up of some tabular plane box bodys 73, these box bodys vertically are arranged in together, leave little spacing between the box body, thereby between box body, formed the upright exhaust passage 74 of some width uniformities.In each box body 73, the side wall of box body just defines the passage 75 that enters air.Between two side walls of box body sheet metal strip bending or that be ripple (not showing on the figure) is housed each passage 75 is separated into some little passages, these passages are very level and smooth at the flow direction of air inlet.

As the heat exchanger 12 shown in Fig. 1-4, heat exchanger 63 shown in Fig. 5-7 also is equipped with the device to exhaust passage 74 feed water, so that on the passage board wall, form the thin moisture film of one deck, the whole surface of board wall all water cover, water is from the top of passage or arrival end flows to the below or the port of export of passage.

In order to reach this purpose, the distributing trough 76 of the level of pair of parallel is installed directly over heat-exchangers of the plate type, distributing trough traverses whole plate apparatus.The top of 76 two sides 77 of distributing trough is made into zigzag, a lot of breach 78 have been formed, water in the distributing trough 76 overflows by these breach exactly, and the whole length of the top edge of 74 board walls distributes equably along the exhaust passage, forms water membrane on the whole surface of board wall.

Because distributing trough 76 has also reached that part of plate apparatus 67 entrance sides, so it can also make the air of discharge be evenly distributed on the passage 74.

Send water by upper hose 79 and water pump 80 to above-mentioned distributing trough 76.Water pump 80 draws water collecting box 69 chassis 81 below plate apparatus 67, and the water here is that the water that is ejected by exhaust passage 74 is collected.Make in the collecting box chassis by a liquor-level regulator (not showing on the figure) to be full of water, link to each other with the main suit by cold water pipes 82 here, on pipeline, be provided with a magnetic valve 83.Since to exhaust passage 74 water systems be open wide not with the system of pressure, the problem that therefore usually occurs on the water spray nozzle all can be avoided; This nozzle gets clogged easily, necessary feed water under high pressure, and water under high pressure can bring sealing problem, will take sizable space in addition.

The shortage of heat of taking away when the water of the exhaust passage 74 of flowing through also can be from water pipe 82 there feed cold water so that the temperature of the air that enters drops to (such as when the relative humidity of discharging air is higher) when requiring temperature.

When the temperature of outside air and relative humidity than higher the time, can utilize an independent heat exchanger 84 that refrigerator R is housed, water is cooled off before in entering heat exchanger 63.In this case, temperature can be walked around heat exchanger 63 by means of bypass flap arrangement 72 than higher discharge air.

In new water feed a period of time of after, can distribute water pipe 85 the 81 unnecessary water that flow out are spread across on the roof 86 of air-conditioned building from the chassis with one.So just can prevent the space of heat below the roof is passed to, undesirable because this is us.

As shown in Figure 6 and Figure 7, a burning has been installed in the inlet tank 68 of heat exchanger 63 has chewed, preferably a combustion gas is burnt and is chewed 87, and it is connected with the pipeline 88 of a feed fuel.This burning is chewed 87 and is used for heating discharging air in inlet tank 68 before the discharge air enters heat exchanger 63 plate apparatus 67, just the front is said heats discharging air when need carry out supplementary heating to the air that enters, it can be that general burning is chewed that above-mentioned burning is chewed, be equipped with suitable igniting and extinguishing device (not showing on the figure), also have fuel control unit etc.The needed oxygen that burns can obtain from the air of discharging, but also can supply with the air of burning usefulness individually, and this does not exceed scope of the present invention.

Be equipped with at the air-conditioning equipment shown in Fig. 1-4 or other and on air-conditioning equipment of heat exchange type heat exchanger the sort of burning shown in a Fig. 6-7 can be installed and chew 87, be used for it being heated before entering the heat-exchange device of heat exchanger discharging air, this point also belongs within the scope of the present invention certainly.Because this burning is chewed and general only used in the short period of time, and also just be used for improving fewer temperature, so its size is little, can supply with needed fuel with the fuel container of movably changing easily.

Claims (12)

1, a kind of adjusting in the heat exchange type heat exchanger enters the air-conditioning method of air themperature, this heat exchanger has and enters first group of used passage of air and discharge second group of used passage of air, second group of passage and first group of passage are configured to the relation of heat exchange type heat exchange, this method is just to the air of the discharging humidification of spraying water when entering air and need cooling off, it is characterized in that: the humidification of discharging air is a heat exchanger (13,63) second group of passage (34,74) directly supplies water.

2, in accordance with the method for claim 1, it is characterized in that: the water of confession be to be sprayed on the board wall (32,33) of second group of passage (34).

3, according to claim 1 or 2 described methods, it is characterized in that: at second group of passage (34,74) board wall (32,33) is gone up formed water membrane the whole surface of board wall is all covered basically, and the air of this moisture film and discharge is one genuinely to flow through from second group of passage.

4, in accordance with the method for claim 3, it is characterized in that: to the water of passage board wall feed is that distributing trough (76) from second group of passage (74) arrival end flows on the board wall by gravity.

5, according to any one the described method in the claim 1 to 4, it is characterized in that: water will pass through a cooler (84) earlier before sending into second group of passage (74).

6, according to any one the described method in the claim 1 to 5, it is characterized in that: the water that flows out from second group of passage (74) is spread across on the roof (86) of building.

7, enter the air-conditioning method of air themperature according to any one described a kind of in the heat exchange type heat exchanger, adjusting in the claim 1 to 6, this heat exchanger has and enters first group of used passage of air and discharge second group of used passage of air, second group of passage and first group of passage are configured to the relation of heat exchange type heat exchange, the air that enters it is characterized in that when need heat, enter second group of passage (74) at the air of discharging just heats discharging air before, the mode of heating can be chewed (87) with burning, and preferably adopts coal gas to burn and chew.

8, a kind of heat exchanger of heat exchange type, it has second group of used passage of air of first group of used passage of the air that enters and discharge, second group of passage and first group of passage are configured to the relation of heat exchange type heat exchange, it is characterized in that: water is by a kind of water system (40-43,76-80) directly deliver on second group of passage (34,74).

9, according to the described heat exchanger of claim 8, it is characterized in that: first group and second group of passage (34,74) all be flat board (30 by heat exchanger, 73) limit, these passages have vertical and parallel board wall, these board walls all are level and smooth on the flow direction that enters air and discharge air, its feature also is: at second group of passage (34, near the device (40 that water supply is arranged the inlet 74), 76-78) be used for to passage board wall (32,33) supply water in the upper end, is to spray water along the whole length of board wall basically.

10, according to the described heat exchanger of claim 9, it is characterized in that: its water system has the level trough (76) of an opening at least, the length of this trough is corresponding at the horizontal length of a direction with second group of passage (74), the dual-side of trough has some breach (78), these breach are distributing along the length direction of trough, be positioned at second group of passage (74) board wall directly over.

11, according to the described heat exchanger of claim 10, it is characterized in that: it has two troughs (76) at least, and these troughs laterally reach among the plane of second group of passage (74) board wall.

12, according to any one described heat exchanger in the claim 8 to 11, it is characterized in that: at second group of passage (34, a collecting box (23 is arranged 74), 81) be used for collecting the water that flows out from these passages, and (41-43 79-80) sends back to the water of collecting the arrival end of second group of passage to the device by being connected with collecting box again.

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