CN2034253U

CN2034253U - Automatic humidifying apparatus

Info

Publication number: CN2034253U
Application number: CN 88210241
Authority: CN
Inventors: 韩恩华; 孙权友; 陈占平; 刘维先; 许奎风
Original assignee: YINGKOU RADIO MACHINERY FACTORY
Current assignee: YINGKOU RADIO MACHINERY FACTORY
Priority date: 1988-03-05
Filing date: 1988-03-05
Publication date: 1989-03-15

Abstract

The utility model relates to an automatic humidifying device, which is composed of a pneumatic water supply device, an automatic cleaning sprayer, and a selectable (timing, manual, and automatic) control part. The automatic humidifying device can automatically clean a spray head and relevant pipelines, accordingly, the spraying efficiency is high, and the products can not be polluted. One of the selectable (timing, manual, and automatic) control part can be randomly selected, and the conversion is convenient. The humidity reaction is sensitive (the reaction time is only 30 seconds) and reliable. The automatic humidifying device can be used for the working environment where the humidity keeps constant, in the industries and the enterprises of tobacco, textiles, electronics, organism, research, etc.

Description

Automatic humidifying apparatus

The utility model belongs to humidity control device manufacturing technology field.It is mainly used in industries such as tobacco, weaving, electronics, biological scientific research and unit needs the constant working environment of humidity.

At present, the domestic method of centrifugal direct sprinkling, air duct humidification and steam conditioning that mainly adopts in needing the constant working environment of humidity is carried out damping.These methods though all can select for use, all have certain defective.The shortcoming of centrifugal direct spraying is, installs that just the Use Limitation rate is higher, uses after a period of time owing to absorbed airborne dust, and finger plate, filter efficient are reduced, and causes droplet excessive (becoming large water drop); The shortcoming of air duct humidification method is, water droplet becomes big in the pipeline because the pipeline internal-external temperature difference causes, and it forms supersaturated air during with the cold air mixed gas supply, water droplet is increased, and the machine internal corrosion of causing is got rusty, and therefore the water droplet that sprays pollutes semi-finished product and finished product easily; The formed environment of steam humidification method is similar to the bathing pool indoor environment: room temperature raises when leading to vapour, and the cooling back produces big water droplet, Jie Chu the easy corrosion of metal part part with it.

External automatic humidity control generally is made up of feedwater, spraying, control three parts.Its efficient is generally better; Its shortcoming is that control mode single (having only timing controlled) is owing to adopt hair formula sensor, sensitivity low (the humidity reflection time is long) service condition to require high (being used for airtight working environment).

The purpose of this utility model is, a kind of automatic humidity control with the automatic cleaning apparatus that can clear up shower nozzle mouth and sparge pipe, automatic water feeder, optional (regularly, manually, automatically) control is provided.

Adopt pneumatic waterworks to solve the self water feeding problem: the cleaning sprayer solves nozzle blockage automatically, droplet is thick and the problem of polluted product in employing; Adopt optional (regularly, manually, automatically) control device to solve the adaptability problem of control device, promptly select different control devices according to different operating environments.

Referring to accompanying drawing, the utility model is elaborated.

Fig. 1 is the utility model structural representation; Fig. 2 is a fog-spray nozzle structural representation in the utility model, and Fig. 3 is an air water converter structure schematic diagram in the utility model; Fig. 4 is an automatic water feeder structural representation in the utility model; Fig. 5 is automatic control, timing control circuit block diagram.

Now structure and the operation principle with each several part is described below:

Automatically the cleaning sprayer is by air cutoff valve (1-1), air cleaner (1-2), fog-spray nozzle (1-3) (have 4 fog-spray nozzles, adjacent two fog-spray nozzles become 90 °), air water converter (1-4) and automatic water feeder (1-5) formation.

Its operation principle is:

Water from the water head tank enters automatic water feeder (1-5); Compressed air from air accumulator (1-8) is sprayed by fog-spray nozzle (1-3).At this moment form negative pressure at the aqueduct front end, this negative pressure attracts up the water in the automatic water feeder (1-5) and mixes with the air of ejection and form fine water smoke.

Automatically the structure of fog-spray nozzle is made of spring (2-1), diaphragm (2-2) and purge tube (2-3) as shown in Figure 2 in the cleaning sprayer.Its operation principle is that when humidity reached requirement, air water converter (1-4) ended the water route automatically, connects atmosphere simultaneously; Compressed air continues to supply with, till all water is exhausted in water pipe.This moment, the cleaning sprayer did not have pressure automatically, and diaphragm (2-2), purge tube (2-3) are pushed ejiction opening to finish the cleaning to ejiction opening by spring (2-1) together.When supplying with compressed air once more, air water converter (1-4) is opened the water route automatically, is ended gas circuit, carries out and above-mentioned opposite action.Purge tube (2-3) drives diaphragm (2-2) compression spring (2-1) by compressed air, makes it get back to duty, and beginning is spraying normally.This perseveration is finished by optional control device.Because cleaning in time, ejiction opening remains circle.

The structure of air water converter (1-4) as shown in Figure 3, by end cap A(3-1), diaphragm (3-2), spool (3-3), valve body (3-4), spring (3-5) and end cap B(3-6) constitute, have delivery outlet, inlet opening, air admission hole and control gas source inlet on it.Air water converter (1-4) is actual to be a valve of taking pneumatic control when obtaining signal.Its operation principle is, after humidity reaches requirement, at first sends signal by control system, and the control gas circuit makes this valve film (3-2) pressurized, and spool (3-3) is the water inlet sealing, opens air admission hole simultaneously and connects with delivery outlet.Treat that the water in the sparge pipe is ended by exhaustion back, gas circuit fully, whole spray process is finished.During beginning, the control air is cut off, and control piper does not have pressure, and spool (3-3) is opened the water route by spring (3-5) top reposition, directly sprays by atmosphere.

The structure of automatic water feeder (1-5) is made of pull bar (4-1), urceolus (4-2), cursory (4-3), floating drum (4-4) and the water inlet pipe (4-5) that is communicated with feed pipe (1-7) as shown in Figure 4.Its operation principle is that because of water is from water head tank (1-6), so the certain water level of total maintenance in the sprayer is sprayed and constantly carried out, water just covers continuously automatically; When spraying stopped, water level stopped after reaching the equilbrium position voluntarily.

Work when initial, the sealing valve is opened, water inlet pipe (4-5) has water to enter, upwards pull bar (4-1), make the water in the water inlet pipe (4-5) enter urceolus (4-2), behind certain water level, at this moment buoyancy of water can decontrol pull bar (4-1) with floating drum (4-4) jack-up; Slowly enter floating drum by the outer water that overflows of surveying of floating drum (4-4), when the weight sum of floating drum (4-4) and internal water thereof during greater than buoyancy of water, floating drum (4-4) sinks, water pipe is shut.After this moisturizing does not voluntarily need pull bar (4-1) again.

Pneumatic waterworks (see figure 1) is by water head tank (1-6) and the feed pipe (1-7) that is communicated with automatic water feeder (1-5) thereof, air accumulator (1-8) and the control gas circuit formation that links to each other with feedwater converter (1-4) with main gas circuit that air cutoff valve (1-1) is communicated with thereof.Contain compressed air in the air accumulator (1-8), compressed air from the water of air compressor machine, water head tank (1-6) from running water pipe.

Control mode of the present utility model comprises timing controlled, manually controls and controls three kinds automatically.The conversion of various control modes is realized that by switch it is very convenient to change.Here mainly be the automatic and timing controlled of narration.Automatically and the structure of timing control circuit as shown in Figure 5, it is a close-loop automatic adjustment system.Humicap sensor C/V wherein, actual is a capacitance voltage change-over circuit, the humidity voltage signal of its generation, the one road delivers to humidity display circuit HS; Another road is through signal amplifier A ₁, deliver to two comparator C after the amplification ₁, C ₂, to compare with the humidity upper limit value and lower limit value ymax and the ymin that set, comparative result send logic judging circuit Lg.The control signal that Lg produces is through drive circuit A ₂, A ₃After the amplification, drive executive component EW ₁, EW ₂The action of two magnetic valves realizes the control that spraying system is started, stops.TW is a timing circuit, and LTC is a shower nozzle cleaning delay circuit, and F is a humidity nature feedback element.

Manually control is button control, and manually the narration of control principle is omitted.

Manufacturing technology of the present utility model belongs to the known technology of machining and electron trade, and the product humidity reflection time is 30 seconds humidity error ± 4%.

The utility model has the advantages that to have optional (regularly, manually, automatically) control, automatic cleaning apparatus (nebulization efficiency height, not polluted product), aqueous vapor converter; Humidity reflection highly sensitive (the humidity reflecting time only is 30 seconds) has obvious economic benefit and social benefit.

Claims

1, a kind of automatic humidity control, constitute by waterworks, sprayer and control device, it is characterized in that above-mentioned waterworks are pneumatic waterworks, above-mentioned sprayer is to clear up sprayer automatically, above-mentioned control device is optional (regularly, manually, automatically) control device, the main gas circuit of control device and pneumatic waterworks and control gas circuit link together, and clear up the main gas circuit of sprayer and pneumatic waterworks automatically, and control gas circuit and feed pipe are communicated with.

2, automatic humidity control according to claim 1, it is characterized in that clearing up automatically sprayer is assembled by air cutoff valve (1-1), air cleaner (1-2), fog-spray nozzle (1-3) (have 4 fog-spray nozzles, adjacent two fog-spray nozzles become 90 °), air water converter (1-4) and automatic water feeder (1-5).

3, automatic humidity control according to claim 2 is characterized in that fog-spray nozzle (1-3) is assembled into an integral body by spring (2-1), diaphragm (2-2) and purge tube (2-3).

4, the automatic humidity control of narrating according to claim 2, it is characterized in that air water converter (1-4) is by end cap A(3-1), diaphragm (3-2), spool (3-3), valve body (3-4), spring (3-5) and end cap B(3-6) constitute, also has delivery outlet on the air water converter, inlet opening and control gas source inlet.

5, automatic humidity control according to claim 2 is characterized in that automatic water feeder (1-5) is assembled successively by pull bar (4-1), urceolus (4-2), cursory (4-3), floating drum (4-4) and the water inlet pipe (4-5) that is communicated with feed pipe (1-7) to be formed by connecting.

6, automatic humidity control according to claim 1 is characterized in that pneumatic waterworks reach the feed pipe (1-7), the air accumulator (1-8) that are communicated with automatic water feeder (1-5) by water head tank (1-6) and reach the main gas circuit that is communicated with air cutoff valve (1-1), the control gas circuit that is communicated with air water converter (1-4) formation.

7, automatic humidity control according to claim 1 is characterized in that control circuit is successively by humicap humidity sensor C/V, humidity value display circuit HS, linear amplifier A, humidity upper and lower bound initialization circuit, logic judging circuit Lg, drive circuit A ₂And A ₃, executive component EW ₁And EW ₂Two electromagnetic gas valves, timing circuit TW and shower nozzle cleaning delay circuit LTC constitute, and foregoing circuit, element and sprayer unit and humidity nature feedback element F form a close-loop automatic adjustment system.