CN86206588U - Automatic measuring, recording and controlling instrument for relative humidity - Google Patents
Automatic measuring, recording and controlling instrument for relative humidity Download PDFInfo
- Publication number
- CN86206588U CN86206588U CN 86206588 CN86206588U CN86206588U CN 86206588 U CN86206588 U CN 86206588U CN 86206588 CN86206588 CN 86206588 CN 86206588 U CN86206588 U CN 86206588U CN 86206588 U CN86206588 U CN 86206588U
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- CN
- China
- Prior art keywords
- relay
- relative humidity
- dehumidifier
- storehouse
- humidity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses a relative humidity automatic control recorder, comprising a hair hygrometer, a transistor electrical inductance three-point high frequency oscillation amplifier and a dehumidification mechanism. Utilizing the variation of oscillating frequency as a controlling principle, the utility model can control relative humidity to certain scopes in special occasions according to requirements. The utility model has the advantages of simplicity and convenient practice, in particular to being used in places needing controlling humidity, such as an archival repository, a library, etc.
Description
The utility model is a kind of measurement, record and the instrument of controlling relative air humidity automatically, belongs to the humidity regulation control system or the equipment of air.
In storage area or the data bank, there is substantial connection in the life-span of the humidity of air and archives or documents and materials.Effectively, measure, control, regulate the humidity of air in the storehouse in time, to prolonging the life-span of archives, document, prevent the paper jaundice, embrittlement, the handwriting is blurred fades, and damages by worms and go rotten to play epochmaking effect.Thereby, how the humidity of file literature data storehouse hollow gas is controlled in the suitable scope, be an important topic of preservation of archives or documents and materials and management work.Usual way is to adopt hair hygrometer to measure the humidity of air in archives, data storehouse; Adopt dehumidifier to regulate the humidity of air, promptly humid air is cooled off, then the water that condenses is discharged outside the storehouse, to keep suitable humidity with freezing method.The method that this use dehumidifier dries is not limited by external conditions such as atmospheric conditions and season, so obtained widespread use.Yet practical application shows, remains in the some shortcomings part.At first, dehumidifier needs manually-operated and management, dehumidifier be used in same flooring many between storehouse dry in turn, labor strength wastes energy greatly and again.Secondly, when dehumidifier was opened, the humidity of air obviously descended in archives, the documents and materials storehouse, and dehumidifier one closes, and the humidity of air is gone up comparatively fast in the storehouse, is difficult to the humidity of air in the storehouse basicly stable in comparatively ideal scope.Automatically regulate for the humidity that will reach air in archives, the documents and materials storehouse, Shanghai No. 23 Radio Factory has manufactured and designed DEN type temperature, humidity automatic telemetering, remote control instrument.It mainly produces the displacement of the lines vector by temperature, humidity sensor, amplifies gear train through precision optical machinery, drives the displacement of the lines scrambler, converts the decimal system Morse pulse code output of three significant figures to, measures temperature, the humidity of control air automatically.This automation equipment degree height, measurement range is wide, is that a kind of temperature, humidity are preferably measured automatically, controller.Yet, its structure more complicated, used survey sensor is also different with hair hygrometer, and cost is higher.The utility model has improved linking between the hair hygrometer of common employing and the dehumidifier, realized that simply, effectively the humidity in archives, the documents and materials storehouses measures automatically, record and control, relative humidity in the storehouse is stabilized in certain scope more satisfactoryly, alleviate managerial personnel's labour intensity greatly, saved the energy.
The purpose of this utility model is that metal finger pin type hair hygrometer, dehumidifier and the transistor inductance higher-order of oscillation amplifier that will have pen recorder are combined, designing a kind of metal finger by hair hygrometer moves, change the inductance of transistor inductance higher-order of oscillation amplifier, thereby control automatic measurement, the record of dehumidifier, the instrument of control relative humidity automatically.
Mainly by the metal finger pin type hair hygrometer of tape recording device, transistor inductance higher-order of oscillation amplifier and dehumidifier constitute the utility model.The metal finger pin type hair hygrometer of tape recording device is used for measuring and writing down the relative humidity of air in the storehouse.Along with moving of hair hygrometer metal finger, metal finger had both been indicated the relative humidity of air in the storehouse, also change the inductance of inductance element in the transistor inductance higher-order of oscillation amplifier, thereby caused the oscillator signal changes in amplitude of LC oscillatory circuit in the transistor inductance higher-order of oscillation amplifier.The variation of oscillator signal power gets final product pilot relay after amplifying circuit amplifies, control dehumidifier work then or stop relative humidity in the automatic control of the realization storehouse.Specific practice is:
Press Fig. 3 24 volts of dc supplies (21) are connected in two 7605 transistor npn npn inductance higher-order of oscillation amplifiers (15), (16), oscillatory circuit produces oscillator signal.The size of oscillator signal depends on inductance L and capacitor C, and general capacitor C is a constant, and the inductance variation will make LC oscillator signal amplitude change so.The utility model is the upper limit relative humidity that two groups of LC frequency selection networks are separately positioned on a HJI type hair hygrometer (1) metal finger (2) indication that 65% scale place and lower limit relative humidity are 58% scale place.Like this, move when metal finger (2) the Yin Kunei humidity variation of hair hygrometer, when entering the LC frequency selection network, inductance L just diminishes, and the amplitude of oscillator signal is corresponding to be weakened, so that can not make the transistor BG in the amplifying circuit
2Or BG
4Conducting.Connected relay J
1(19) or J
2(20) not adhesive certainly keeps its initial connection status.Yet when metal finger (2) the Yin Kunei humidity of hair hygrometer changes and moves when withdrawing from frequency selection network LC, maximal value will appear because of inductance L is unaffected in the oscillator signal of oscillatory circuit.Oscillator signal strengthens, through detector diode D
1Or D
2After the detection, input transistors BG
2Or BG
4, transistor turns drives relay J
1(19) or J
2(20) adhesive realizes control.Therefore, suitably connect relay J
1(19) and J
2(20) be the interior relay J of may command dehumidifier
3(23) adhesive or release reach automatic control dehumidifier and constantly open in the scope of relative humidity 58%-65% or stop, and the relative humidity in the storehouse is maintained in the comparatively ideal scope always.Relay J
1(19) and J
2(20) and dehumidifier in relay J
3(23) connection such as Fig. 4.Wherein, relay J
1(19) initial connected mode is normally closed, promptly relay J
1(19) one group of normally closed contact line attachment; Relay J
2(20) initial connected mode is for often opening, promptly relay J
2(20) one group of normally opened contact line attachment.Relay J
1(19) and J
2(20) can go to control the interior relay J of dehumidifier after the serial connection
3(23).In addition, in range of control, work in order to make dehumidifier, also must be the relay J in the dehumidifier (14)
3(23) self holding contact draws receives relay J
1(19) on.The relay J of Lian Jieing like this
1(19), J
2(20), relay J in the dehumidifier
3(23) can realize I, II, III, the IV course of work as Fig. 4:
Process I, when the hair hygrometer metal finger (2) among Fig. 3 with storehouse in humidity raise and to move to relative humidity when being 65% scale place, the pen recorder of hair hygrometer (5) has write down measured relative humidity, and simultaneously, its metal finger (2) has also entered the L that is arranged on the there
3C
3Frequency selection network (17), metal finger has influenced inductance L, and the oscillator signal of oscillatory circuit is weakened, so that the transistor BG in the transistor inductor oscillating amplifier (15)
2End certain connected relay J
1(19) be failure to actuate, keep original initial normally off.But, be another group frequency selection network L at 58% scale place in relative humidity
4C
4(18) but inductance component L because be not subjected to the influence of hair meter metal finger (2)
4Inductance be maximum, just the oscillatory circuit oscillator signal in the transistor inductor oscillating amplifier (16) is the strongest, oscillator signal is through diode D
2Input transistors BG after the detection
4, transistor BG
4Conducting drives relay J
2(20) adhesive forms as the I state among Fig. 4.It is relay J
1(19) normally closed, relay J
2(20) adhesive, circuit is connected, relay J in the dehumidifier
3(23) adhesive, dehumidifier (14) unlatching work is dried.
The process II, simultaneously, along with the relay J in the dehumidifier
3(23) action must make to draw and receive relay J
1(19) self holding contact on (24) closure is promptly as the II state among Fig. 4.Relay J
1(19) normally closed, relay J
2(20) closure, circuit is connected, relay J in the dehumidifier
3(23) adhesive makes to draw and receives relay J
1(19) self holding contact on (24) is also closed, and dehumidifier (14) work is dried.
The process III, after dehumidifier work, humidity reduces in the storehouse, and then the metal finger (2) of hair hygrometer (1) is offset, and indicates to be lower than 65% relative humidity number.Simultaneously, metal finger (2) also withdraws from the L that is arranged on 65% scale place
3C
3Frequency selection network (17).At this moment, inductance component L
3Be not subjected to metal finger (2) influence, inductance is maximum, and it is the strongest that the oscillatory circuit oscillator signal in the transistor inductance higher-order of oscillation amplifier (15) recovers, transistor BG
2Conducting drives relay J
1(19) adhesive discharges original initial normally closed contact.But circuit still is connected on relay J by drawing
1(19) self holding contact on (24) is closed and connect, i.e. relay J
1(19) self holding contact (24) closure, relay J
2(20) closure, dehumidifier (14) still works on, and dries.
The process IV, relative humidity drops at 58% o'clock because of dehumidifier (14) dries in storehouse, and it is 58% scale place that the metal finger (2) of hair hygrometer (1) is displaced to relative humidity, and the hair hygrometer metal finger enters the L that is arranged on this end simultaneously
4C
4In the frequency selection network (18), inductance component L
4Because of being subjected to the influence of metal finger (2), inductance reduces, and the oscillatory circuit oscillator signal in the transistor inductor oscillating amplifier (16) diminishes, transistor BG
4End connected relay J thereupon
2(20) discharge, reply initial normally open, the line disconnection power supply.Certainly, relay J in the dehumidifier
3(23), relay J
1(19) self holding contact (24) is also because of decompression all discharges, and dehumidifier (14) quits work.
Along with stopping of dehumidifier (14), relative humidity can be gone up gradually in the storehouse, and the hair hygrometer metal finger (2) of relative humidity also is offset slowly in the indication storehouse.When metal finger (2) moved away relative humidity and is 58% scale place, promptly metal finger (2) withdrawed from and is arranged on the L that relative humidity is 58% place
4C
4During frequency selection network (18), inductance component L
4Because of making the oscillatory circuit oscillator signal of transistor inductor oscillating amplifier (16), the influence that no longer is subjected to metal finger (2) recovers maximum, transistor BG again
4Conducting drives connected relay J
2(20) adhesive.But it is 65% scale, one end that the hair hygrometer metal finger (2) of the humidity of ging up gradually in the continuation indication storehouse also is not displaced to relative humidity, so be arranged on frequency selection network L there
3C
3(17) inductance component L in
3Equally also be not subjected to the influence of hair hygrometer metal finger (2), inductance is maximal value, the oscillatory circuit oscillator signal maximum of transistor inductor oscillating amplifier (15), transistor BG
2Conducting drives relay J
1(19) also adhesive, its initial normally closed contact discharges, and circuit still is in off state, and dehumidifier (14) still stops, and does not work.Then, relative humidity goes back up at 65% o'clock in storehouse, and hair hygrometer metal finger (2) also is displaced to the end that relative humidity is 65% scale place, and promptly metal finger (2) also enters the L that is arranged on the there
3C
3Frequency selection network (17).Inductance component L
3Because of the inductance that influences of metal finger (2) becomes minimum, transistor BG
2End relay J
1(19) discharge, recover normally closed contact and connect circuit, the relay J in the dehumidifier (14)
3(23) also adhesive, dehumidifier (14) starts once more, and work is dried.Simultaneously, relay J in the dehumidifier
3(23) draw and receive relay J
1(19) dehumidifier (14) work is kept in the self holding contact on (24) adhesive.So, dehumidifier (14) is worked in the storehouse always, and to be reduced to relative humidity be that 58% rear stops to humidity.So continuous repetition remains in the ideal range of setting the relative humidity in the storehouse always.
Description of drawings:
Fig. 1 is that the utility model relative humidity is measured automatically, the outside drawing of record, controller.Wherein, (1) is the hair hygrometer of HJI type tape recording device; (2) be the metal finger of hair hygrometer; (3) be power light; (4) be voltmeter head; (5) be the pen recorder of hair hygrometer; (6) be power switch; (7) be signaling switch; (8) be pilot lamp; (9) be casing.
Fig. 2 is a basic structure block diagram of the present utility model.Wherein, (1) is the metal finger pin type hair hygrometer of HJI type tape recording device; (10) be LC frequency selection network in the transistor inductance higher-order of oscillation amplifier; (11) be the transistor oscillatory circuit; (12) be the transistor amplification driving circuit; (13) be pilot relay; (14) be the KQF dehumidifier of tape relay.
Fig. 3 is that the utility model is controlled electrical schematic diagram automatically.Wherein, (15), (16) are difference pilot relay J
1, J
2Two 7605 transistor npn npn inductance higher-order of oscillation amplifiers; (1) is the metal finger pin type hair hygrometer of HJI type tape recording device; (2) be the metal finger of hair hygrometer; (17) be the L that is set in upper limit relative humidity 65% scale place
3C
3Frequency selection network; (18) be the L that is set in lower limit relative humidity 58% scale place
4C
4Frequency selection network; (19) be the pilot relay J that initially connects normally closed contact
1(20) be the pilot relay J that initially connects normally opened contact
2(21) be 24 volts of dc supplies.
Fig. 4 is that the utility model relative humidity is measured automatically, the relay connection layout of four kinds of state of a controls of record, controller.Wherein, (22) are power leads; (19) be the pilot relay J that initially connects normally closed contact
1(20) be the pilot relay J that initially connects normally opened contact
2(14) be the KQF type dehumidifier of tape relay; (23) be the interior relay J of dehumidifier
3(24) be by relay J
3Draw and receive relay J
1On self holding contact.
Fig. 5 is that the utility model relative humidity is measured automatically, the one-piece construction figure of record, controller.Wherein, (1) is the hair hygrometer of HJI type tape recording device; (2) be the metal finger of hair hygrometer; (4) be voltage table; (6) be power switch; (14) be by relay J
3The KQF type dehumidifier of control; (15), (16) are respectively pilot relay J
1, J
2Two group of 7605 transistor npn npn inductance higher-order of oscillation amplifier; (17) be the L that is set in upper limit relative humidity 65% scale place
3C
3Frequency selection network; (18) be the L that is set in lower limit relative humidity 58% scale place
4C
4Frequency selection network; (19) be the pilot relay J that initially connects normally closed contact
1(20) be the pilot relay J that initially connects normally opened contact
2(21) be 24 volts of dc supplies; (22) be power lead; (23) be the interior relay J of dehumidifier
3(24) be by relay J
3Draw and receive relay J
1On self holding contact.
Below in conjunction with description of drawings embodiment of the present utility model.
Press Fig. 5 link cost utility model relative humidity measurement, record, controller.220 volts of power supplys are by power lead (22) input, and through the transformer step-down, after the rectification, 24 volts of dc supplies (21) are to transistor inductance higher-order of oscillation amplifier (15), (16) powered operation, and oscillatory circuit produces oscillator signal.Hair hygrometer metal finger (2) in being arranged on storage area moves to relative humidity when being 65% scale place because of humidity in the storehouse raises, metal finger (2) also enters the L that is arranged on this end
3C
3In the frequency selection network (17), influence inductance L
3, make the oscillatory circuit oscillator signal in the higher-order of oscillation amplifier (15) weaken transistor BG
2End relay J
1(19) discharge normally closed contact J
1-2Keep initial normally off.And be arranged on the frequency selection network L of another group transistor inductance higher-order of oscillation amplifier (16) at relative humidity 58% scale place
4C
4(18) but be the strongest, transistor BG because of the oscillator signal that influences that is not subjected to metal finger (2)
4Conducting drives relay J
2(20) adhesive, normally opened contact J
2-2Also closed, connect circuit, thereby relay J
3Adhesive, dehumidifier (14) is by relay J
3Contact J
3-2, J
3-3, J
3-4The connection three-phase electricity is worked, and draws simultaneously to be connected on relay J
1(19) the self holding contact J on
3-1(24) also adhesive.Along with dehumidifier (14) work, humidity reduces gradually in the storehouse, and L is withdrawed from the metal finger of hair hygrometer (2) skew
3C
3Frequency selection network (17), at this moment, it is the strongest that the oscillatory circuit oscillator signal of transistor inductance higher-order of oscillation amplifier (15) recovers, transistor BG
2Conducting drives relay J
1(19) adhesive, normally closed contact J
1-2Discharge.But circuit is still by self holding contact J
3-1(24) connect, dehumidifier (14) works on, and dries.Like this, until humidity reduces at 58% o'clock in the storehouse, the metal finger of hair hygrometer (2) just enters the L that is arranged on this end
4C
4In the frequency selection network (18), inductance L
4Because of reduced by metal finger (2) influence, the oscillatory circuit oscillator signal in the transistor inductor oscillating amplifier (16) diminishes, transistor BG
4End relay J
2(20) discharge normally opened contact J
2-2Reply, cut off the electricity supply relay J
3(23) also discharge its contact J
3-1, J
3-2, J
3-3, J
3-4All discharge, dehumidifier quits work.After dehumidifier (14) stopped to dry, humidity was gone up in the storehouse, and the mobile deactuate of the metal finger of hair hygrometer (2) withdraws from L
4C
4Frequency selection network (18); Relay J
2(20) adhesive again.But relay J
1(19) J
1-2The contact is in open-circuit condition, service interruption, relay J
3(23) not adhesive, dehumidifier (14) is not worked.But when storehouse humidity went back up to 65%, the metal finger of hair hygrometer (2) entered L again
3C
3Frequency selection network (17), relay J
1(19) discharge normally closed contact J
1-2Connect circuit, relay J
3Again adhesive, contact J
3-1, J
3-2, J
3-3, J
3-4Closure, dehumidifier (14) is dried by the three-phase electricity powered operation, self holding contact J
3-1Parallel connection in the line.So constantly repeat, relative humidity in the storehouse is remained in 65%～58% the scope always.Certainly, the hair hygrometer (1) of HJI type tape recording device has also write down the change curve of relative humidity in the storehouse when measuring Ku Neinei relative humidity.
Use the utility model test running in the cave depot that set up in the mountain area, respond well. There, the mountain area cave depot is outer rainy, in the cave depot all the year round relative humidity up to more than 95%. Large-scale dehumidifier is installed in cave depot, is connected that relative humidity is measured automatically, behind the record, controller, through work in 1 year, the relative humidity in the cave depot was stabilized in 58% to 65% the scope always, not affected by any extraneous factor. Therefore, this be a kind of simple, reliable, convenient, practical relative humidity is measured automatically, record, controller.
Claims (2)
1, a kind ofly with dehumidifier humid air in the storehouse is condensed into water and discharges outside the storehouse, reduce the controller of relative air humidity in the storehouse, comprise hair hygrometer, it is characterized in that having two group transistor inductance higher-order of oscillation amplifiers (15), (16); The upper limit that is arranged on hair hygrometer and sets, the inductance frequency selection network L at lower limit relative humidity scale place are arranged
3C
3, L
4C
4The relay J that is subjected to transistor inductance higher-order of oscillation amplifier (15), (16) control is arranged
1(19), J
2(20) and by the interior relay J of dehumidifier (14)
3(23) draw and receive relay J
1(19) the self holding contact J on
3-1(24).
2, relative humidity auto-controller according to claim 1, the pointer that it is characterized in that hair hygrometer is a metal finger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86206588 CN86206588U (en) | 1986-12-16 | 1986-12-16 | Automatic measuring, recording and controlling instrument for relative humidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86206588 CN86206588U (en) | 1986-12-16 | 1986-12-16 | Automatic measuring, recording and controlling instrument for relative humidity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86206588U true CN86206588U (en) | 1987-09-12 |
Family
ID=4809196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86206588 Withdrawn CN86206588U (en) | 1986-12-16 | 1986-12-16 | Automatic measuring, recording and controlling instrument for relative humidity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86206588U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529870A (en) * | 2013-10-30 | 2014-01-22 | 成都市宏山科技有限公司 | Automatic demisting device |
| CN107402183A (en) * | 2017-07-14 | 2017-11-28 | 西北工业大学 | A kind of intelligent hair hygrograph |
-
1986
- 1986-12-16 CN CN 86206588 patent/CN86206588U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529870A (en) * | 2013-10-30 | 2014-01-22 | 成都市宏山科技有限公司 | Automatic demisting device |
| CN103529870B (en) * | 2013-10-30 | 2015-09-09 | 成都市宏山科技有限公司 | A kind of automatic defogging device |
| CN107402183A (en) * | 2017-07-14 | 2017-11-28 | 西北工业大学 | A kind of intelligent hair hygrograph |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |