CN2283876Y - Explosion-proof type temp pressure automatic controller - Google Patents
Explosion-proof type temp pressure automatic controller Download PDFInfo
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- CN2283876Y CN2283876Y CN 96209440 CN96209440U CN2283876Y CN 2283876 Y CN2283876 Y CN 2283876Y CN 96209440 CN96209440 CN 96209440 CN 96209440 U CN96209440 U CN 96209440U CN 2283876 Y CN2283876 Y CN 2283876Y
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- 238000004880 explosion Methods 0.000 claims abstract description 7
- 239000003990 capacitor Substances 0.000 claims description 21
- 238000001914 filtration Methods 0.000 claims description 8
- 239000010687 lubricating oil Substances 0.000 claims description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 4
- 239000004519 grease Substances 0.000 claims description 3
- 239000004922 lacquer Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 239000005341 toughened glass Substances 0.000 claims description 3
- 229910001060 Gray iron Inorganic materials 0.000 claims description 2
- 238000005485 electric heating Methods 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000006386 memory function Effects 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 abstract 1
- 239000000428 dust Substances 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 230000007257 malfunction Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 6
- 238000004804 winding Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to an explosion-proof type temperature pressure automatic controller which belongs to the electronic control detector and is used for the safe automatic control of an explosion-proof equipment under a mine well. The explosion-proof casing of the utility model is fixed on the explosion-proof equipment used in the mine well, and the collected temperature and pressure signals are used for accurately controlling the temperature and the pressure parameter of the explosion-proof equipment used in the mine well and for protecting and stopping the equipment when the temperature and the pressure are over, through a temperature signal amplifying circuit, a pressure signal amplifying circuit, a comparative filter circuit, an automatic power cut, startup and stop circuit and a main control and display circuit. The utility model has small size, low power consumption and good effect of preventing from the electromagnetic disturb, the vibration, the shock, the explosion, the moisture and the dust; the utility model is provided with a status indicator, malfunction memory function, and a manual start and stop control switch, so the equipment can be connected with the electricity again without starting the system when the power is cut, and can be automatically stopped after eleven seconds if the equipment is started manually but the oil pressure does not come up to the standards.
Description
The utility model belongs to the Electronic Control pick-up unit, is used under the mine safety of antiknock device and controls automatically.
Present domestic mining equipment is air compressor under the coal mine for example, uses separate type, mechanical type monitoring device or instrument more, as with tensimeter and pressure switch monitoring lubricating system; What have monitors the system of cutting off the water supply with mechanical contacts; What have detects each road temperature of control with glass thermometer or mercury electric contact or PN junction node as sensitive element.Though these apparatus structures are simple, monitoring accuracy is lower, and reliability is not high, and volume is also big.As air-cooled mine anti-explosion air compressor machine, temperature is sent out a monitoring range and is existed: 0-70 ℃, 0-120 ℃, 0-160 ℃, and the PN junction temperature sensor only is applicable in the 0-70 ℃ of scope, and poor stability; Thermopair must be placed on 0 ℃ and locate, otherwise will carry out cold junction compensation because the thermometric that cold junction temperature changes thermopair has a significant impact in the practical application, though that temperature compensation has is multiple, expense strengthens a lot.
The purpose of this utility model is to design a kind of monitoring device of safe and reliable mining equipment operating condition; it answers volume little; energy consumption is low; anti-electromagnetic interference (EMI); vibration resistance; shock-resistant; explosion-proof; moistureproof; dustproof; status indicator lamp is arranged; the fault memory function is arranged; manual start and stop gauge tap is arranged; power on again; machine does not start; start after 11 seconds; oil pressure does not have auto stop up to standard also simultaneously to temperature; pressure parameter carries out accurately control automatically; stoppage protection transfinites; this device is to be fit to the antiknock device safe auto-control device that mine uses in a word; this self-actuated controller can be assemblied on the antiknock device of mine use, realizes the purpose of safety anti-explosive.
Technical essential of the present utility model: in the self-actuated controller system, adopted six road signal acquisition circuits, temperature, pressure signal amplifying circuit, comparer, wave filter and master control display circuit, the start stop switch timing conversioning device, automatic start-stop control circuit, multiple power supplies and explosion-resistant enclosure.Six road signal acquisition circuits are respectively gas-holder pressure signal Acquisition Circuit, the lubricating oil pressure signal acquisition circuit, one-level exhaust temperature signal Acquisition Circuit, secondary exhaust temperature signal Acquisition Circuit, the lubricating oil temperature signal acquisition circuit, the gas-holder temperature signal collection circuit; The temperature that six road signal acquisition circuits are corresponding with six tunnel respectively, pressure amplifying circuit, comparer, the wave filter series connection, this No. six series circuit is parallel to the master control display circuit with start stop switch timing conversioning device, automatic start-stop control circuit again; The arrestment mechanism of equipment is connected under automatic start-stop control circuit and the mine, and this self-actuated controller is assemblied in the flameproof enclosure, and is fixed on and needs under the mine to carry out on the equipment of security control, for example air compressor machine; Self-actuated controller moves with air compressor machine, and temperature, the pressure parameter of air compressor machine carried out accurate control automatically, and stoppage protection transfinites.
Temperature signal amplifying circuit in this device is to constitute in the following manner: a road of public multiple power supplies+V
1Connect resistance R
1, the other end of this resistance resistance R that is connected in parallel
2, R
3And capacitor C
1Resistance R
2With resistance R
4Series connection, resistance R
3With electric heating platinum resistance BA
1Series connection, this two groups of series circuits and capacitor C
1Ground connection in parallel; Resistance R
2, R
3, R
4, BA
1Constitute electric bridge, this electric bridge has four output point a, b, c, d, capacitor C
1Two ends in parallel with c, d point respectively; Electric bridge b end and resistance R
5An end connect resistance R
5The other end and resistance R
8An end be connected to "+" input end of differential amplifier A, resistance R simultaneously
8Other end ground connection; Electric bridge a end and resistance R
6An end connect R
6The other end link to each other with " " input end of differential amplifier A, connect simultaneously a resistance R again
7, resistance R
7With potentiometer W
1Series connection, W
1The other end be connected with the output terminal of differential amplifier A; Resistance R
9The output terminal of one termination differential amplifier A, other end ground connection; The external again potentiometer W of differential amplifier A
2, W
2Adjustable termination power+V
2
The pressure transducer of the pressure signal amplifying circuit in this device has four output terminals A, B, C, D; A road+V by the multichannel utility power
1With potentiometer W
4Adjustable end connect W
4The other end be connected with the sensors A end, the A of sensor, B the end connect one respectively by potentiometer W
3With capacitor C
2The two ends of parallel circuit, the capacitor C of this circuit
2, potentiometer W
3Be linked as some back ground connection with the B end of sensor; Potentiometer W
3The adjustable end resistance R that is connected in series
10, R
10The other end and sensor D end is connected, the D end of sensor also will and resistance R
11Connect resistance R
11The other end be connected with " " input end of differential amplifier A, also connect resistance R at this
13An end, resistance R
13With potentiometer W
5Series connection, potentiometer W
5The other end link to each other with the output terminal of differential amplifier A; Resistance R
15The output terminal of a termination differential amplifier A, resistance R
15Other end ground connection, the C of pressure transducer end and resistance R
12Connect R
12"+" input end and the resistance R of another termination differential amplifier
14An end, resistance R
14Other end ground connection; The external again potentiometer W of differential amplifier
6, potentiometer W
6Adjustable termination power+V
2
Comparison filtering circuit in this device constitutes in the following manner: by multichannel utility power+V
2Resistance R is connected in series
16With potentiometer W
6, potentiometer W
6Other end ground connection; Potentiometer W
6Adjustable end is connected comparison signal U with comparer " " input end
0Connect "+" input end of comparer, in this resistance R that also is connected in parallel
4B, resistance R
4BThe output terminal U of another termination comparer
01, resistance R again is connected in parallel in herein
4, resistance R
4Another termination power+V
2Resistance R
4AThe output terminal U of a termination comparer
01, resistance R
4AAnother termination filter capacitor C
4BAnodal and connect output terminal U
OutCapacitor C
4BMinus earth.
Master control display circuit in this device is to constitute in the following manner: the six tunnel compare the output terminal U of filtering circuit
OutBe connected with six phase inverter CD4049 respectively, the output terminal of six phase inverters is connected with six input ends among the eight Sheffer stroke gate CD4068 respectively again, these six input ends again respectively with two groups of four d flip-flop CD4044 in 6 d type flip flops be provided with the end be connected, connect the respectively negative electrode of six display lamp LED of the output terminals of six tunnel memory d type flip flops, the anode of six LED is resistance in series R respectively again, the other end of six resistance R respectively with multichannel utility power+V
2Connect; Resistance R
23An end promptly to be connected the timing converter that also will be connected in parallel, R with two Sheffer stroke gate CD4011
23Another termination+V
2Resistance R
24An end also meet multichannel utility power+V
2, R
24The other end be connected in series and connect with the output terminal of light warning circuit again behind the light emitting diode; Hold and resistance R memory D flip-flop CD4044 put " 0 "
22And start stop switch is connected in parallel R
22The other end and+V
2Connect; The centre tap of start stop switch is connected with eight Sheffer stroke gate CD4068, one input end, and " 1 " end of putting of latching circuit is connected with eight Sheffer stroke gate CD4068 output terminals, and " 0 " end of putting of latching circuit is connected with timing converter; The input end of light warning is connected with the output terminal of eight Sheffer stroke gate CD4068; Timing converter by four two-way switch CD4066 draw two lines respectively with capacitor C
1Negative pole be connected capacitor C with anodal
1Positive pole be connected back connecting resistance R with two Sheffer stroke gate CD4011 input ends
23The output terminal of two Sheffer stroke gate CD4011 is connected with the input end of two Sheffer stroke gate CD4011 of driving circuit, and the collector of triode is connected resistance R with the automatic start-stop machine circuit in driver
12One termination+V
2The centre tap of putting " 1 " termination start stop switch of driver.
Automatic start-stop control circuit in this device is to connect in the following manner: an end of the drive coil of relay is connected with the transistor collector in the driving circuit, the other end of drive coil and+V
4Connect; Drive coil and diode D
1Anodal and another light emitting diode D
12Negative pole link to each other D
12Positive pole and resistance R
16Series connection, resistance R
16The other end and diode D
1Negative pole link to each other and at this and multichannel utility power+V
4Connect; An end and the capacitor C of often opening output node of relay
3Connect C
3The other end and resistance R
13Series connection, resistance R
13The other end be connected with the other end of relay normally open node, also connect diode D at this
2Negative pole, diode D
2Positive pole be connected with downhole anti-explosion type electric motor starting equipment.
The shell of this device is to be cast by the HT250 gray iron, upper and lower covers adopts static flame proof faying face, and the smooth finish of flame proof faying face is not less than Δ 3.2, and Transparent Parts is for bearing the tempered glass of 4T, the shell inside surface is coated with 1320 are-tight lacquers, and explosion suppresion surface carries out being coated with the 204-1 anti-corrosive grease after phosphatization is handled.
The utility model has the following advantages compared with the prior art: physical dimension is little, and self-actuated controller can be contained on the air compressor machine, can move arbitrarily with air compressor machine, temperature, pressure parameter to air compressor machine carry out accurately monitoring automatically, the stoppage protection that transfinites, vibration resistance, shock-resistant, status indicator lamp is arranged, the fault memory function is arranged, also has manual start and stop gauge tap, power on, machine does not start again, after manually starting, not up to standard through 11 seconds oil pressure, the machine auto stop; Adjustment and calibration mechanism are that the prevented layman of enclosure-type disturbs; In a word, this controller has improved reliability, has optimized the ratio of performance to price.
Description of drawings:
Fig. 1. explosion-proof type temperature, pressure self-actuated controller system diagram;
Fig. 2. temperature signal amplifying circuit schematic diagram;
Fig. 3. pressure signal amplifying circuit schematic diagram;
Fig. 4. compare the filtering circuit schematic diagram;
Fig. 5. master control display circuit schematic diagram;
Fig. 6. automatic start-stop control circuit schematic diagram.
Embodiment:
Now be example with the air-cooled air compressor that uses under the coal mine, as shown in Figure 1, the monitoring parameter of this air compressor machine automatic controller has: I and II delivery temperature, gas-holder temperature, lubricating oil temperature, reservoir pressure tank and lubricating oil pressure.
Require this automatic controller system to have according to fixed monitoring state parameter: signals collecting part, signal amplifying part branch, master control filtering display part, power unit and the start and stop part of cutting off the power supply automatically.
The signal acquisition part branch has selected for use the temperature sensor of B class precision and error to be ± 0.5% pressure transducer.The signal amplifying part branch is all selected ultralow drift 10 μ V, low noise, the operational amplifier of no external compensation circuit power voltage ± 3V-18V single chip architecture for use.
The temperature amplifier section: temperature measurement signal has I and II delivery temperature (0-160 ℃), gas tank temperature (0-120 ℃), and lubricating oil temperature (0-70 ℃), its amplifying circuit is seen Fig. 2, surveys bridge circuit by R
2, R
3The precision resistance, the R that equate
4Form with the BA1 that inserts in the temperature field, BA1 produces voltage difference with temperature rising destruction of balance, thereby records temperature, sends into direct current differential type amplifying circuit, W
2Pot makes to transfer drift usefulness, its enlargement factor:
K＝A
0/(1+R
5/R
8+A
0R
5/R
5)
The pressure amplifier section: gas-holder pressure is approximately 0.8MPA, and lubricating oil pressure is about 0.1MPA, and its amplifying circuit is seen Fig. 3, and strain pressure transducer is integrated bridge circuit, and output resistance is about 70 ohm, passes through W
3Adjustable bridge balancing, W
4Adjustable sensitivity, the synthermal amplifier section of amplifier-chain and principle.
Comparer part during master control filtering shows: as shown in Figure 4, above-mentioned each signal is before sending into governor circuit, and each signal compares action immediately after transfiniting, comparer W respectively with separately pressure limiting normal voltage signal respectively one by one
6Adjustable normal voltage door hurdle value is finished the setting purpose, adds one-level feedback and filter capacitor C for strengthening antijamming capability
4B
Master control and display part during master control shows: as shown in Figure 5; the comparison signal is sent into the memory trigger through filtering end is set; because the effect of squeezing into level; make trigger action, drive corresponding pilot lamp light on and off, No. 6 phase inverters and start stop switch are exported by Sheffer stroke gate; as long as have one the tunnel signal is arranged; 2 seconds are flashed alarm lamp in its output control at interval, and make the corresponding failure lamp bright, and outage is shut down part and sent stopping signal automatically simultaneously.
Automatic outage start and stop part: as shown in Figure 6, automatic controller adopts the output of DC relay, and relay excitation winding and secondary winding have buffer action, and it passes through diode D
2Connect low-vacuum load-tripping device excitation winding and intrinsic safety transformer secondary output winding formation loop in the magnetic starter.Transformer secondary output can be divided into two kinds of 24VAC or 9VAC according to magnetic starter model difference, intrinsic safety transformer secondary output employing resistance is 178 ohm resistance wire coiling, in case air compressor machine a certain road temperature or pressure limit can light corresponding lamp, alarm lamp flashes simultaneously.When relay normally open contact is opened, no current in the K relay winding, its contact is for disconnecting, and the three-phase contactor of control motor is also motionless; Automatic controller starts back output relay closure, and make the conducting of DC transformer, the K winding is under the effect of intrinsic safety transformer-secondary voltage, make the K closing of contact about galvanization 60 ± 5mA, make JLC contactor three contacts closed simultaneously immediately, connect the electric power three-phase supply, starter motor, this automatic controller is irrelevant to control power of motor size.
The design of flame proof shell: be explosive atmosphere under the mine, underground equipment must be a flame-proof type, so housing must be by the requirement design of GB3836 flameproof electrical apparatus " d ".
The utility model is selected HT250 casting pig for use, makes explosion-proof casing:
Its shell net volume≤0.1 liter,
Upper and lower cover adopts static flame proof faying face L 〉=12.5mm, L
1〉=8mm,
Maximum experimental safe gap 〉=25mm,
The smooth finish of flame proof faying face is Δ 3.2, and minimum wall thickness (MINI W.) is 6mm.
Switch rotating shaft and axis hole flame proof faying face:
Minimum effective length L=13mm 〉=12.5mm,
Its maximum gauge difference W=0.1mm≤0.4mm is the faying face gap,
The smooth finish of flame proof faying face is Δ 3.2.
The bolt hole edge is to the minimum effective length at flame proof faying face edge:
L
1＝10≥8mm，
Be provided with eight M8 bolt upper and lower covers, lower cover M8 hole depth 15mm.
Transparent Parts employing 〉=6mm is thick, bears the tempered glass of 4T,
Inside and outside rubber washer satisfies GB3836 chapter 8 regulation,
Transparent Parts exposed area S is 8 circular holes,
Every hole area is π R
2=0.785cm
2
Total S=6.28≤25cm
2
The importing of cable and lead:
Do not produce spark, electric arc or dangerous temperature during normal the operation,
The rated power of electrical equipment=5 watt≤250 watts,
Rated current=0.2 peace≤5 peaces,
Can adopt direct introducing mode, the cable two ends must be handled through strict seal.
Preventing arc and antirust processing:
Inside surface is coated with 1320
#Are-tight lacquer is no less than twice,
The outside surface baking vanish,
Explosion suppresion surface is coated with 204-1 after carrying out the phosphatization processing
#Anti-corrosive grease.
Be fixed with the warning board of " outage is uncapped behind the source " on the housing face-plate with bolted.
Claims (7)
1. an explosion-proof type temperature, pressure self-actuated controller comprises: signal acquisition circuit, signal amplification circuit, comparer, wave filter, governor circuit, automatic start-stop control circuit, start stop switch timing conversioning device, power supply and hold the shell of foregoing circuit; It is characterized in that: in the self-actuated controller system, adopted six road signal acquisition circuits, temperature, pressure signal amplifying circuit, comparer, wave filter and master control display circuit, the start stop switch timing conversioning device, automatic start-stop control circuit, multiple power supplies and flameproof enclosure; Six road signal acquisition circuits are respectively gas-holder pressure signal Acquisition Circuit, the lubricating oil pressure signal acquisition circuit, one-level exhaust temperature signal Acquisition Circuit, secondary exhaust temperature signal Acquisition Circuit, the lubricating oil temperature signal acquisition circuit, the gas-holder temperature signal collection circuit; The temperature that six road signal acquisition circuits are corresponding with six tunnel respectively, pressure amplifying circuit, comparer, the wave filter series connection, this No. six series circuit is parallel to the master control display circuit with start stop switch timing conversioning device, automatic start-stop control circuit again; The arrestment mechanism of equipment is connected under automatic start-stop control circuit and the mine; Above-mentioned each circuit is assemblied in the flameproof enclosure, and can be fixed on and need under the mine to carry out on the equipment of security control.
2. explosion-proof type temperature, pressure self-actuated controller according to claim 1, it is characterized in that: the temperature signal amplifying circuit is to constitute in the following manner: a road of public multiple power supplies+V
1Connect resistance R
1, the other end of this resistance resistance R that is connected in parallel
2, R
3And capacitor C
1Resistance R
2With resistance R
4Series connection, resistance R
3With electric heating platinum resistance BA
1Series connection, this two groups of series circuits and capacitor C
1Ground connection in parallel; Resistance R
2, R
3, R
4, BA
1Constitute electric bridge, this electric bridge has four output point a, b, c, d, capacitor C
1Two ends in parallel with c, d point respectively; Electric bridge b end and resistance R
5An end connect resistance R
5The other end and resistance R
8An end be connected to "+" input end of differential amplifier A, resistance R simultaneously
8Other end ground connection; Electric bridge a end and resistance R
6An end connect R
6" " input of the other end and differential amplifier A be connected, also connect a resistance R at this
7, resistance R
7With potentiometer W
1Series connection, W
1The other end be connected with the output terminal of differential amplifier A; Resistance R
9The output terminal of one termination differential amplifier A, other end ground connection; The external again potentiometer W of differential amplifier A
2, W
2Adjustable termination power+V
2
3. explosion-proof type temperature, pressure self-actuated controller according to claim 1 is characterized in that: the pressure transducer of pressure signal amplifying circuit has four output terminals A, B, C, D; A road+V by the multichannel utility power
1With potentiometer W
4Adjustable end connect W
4The other end be connected with the sensors A end, the A of sensor, B the end connect one respectively by potentiometer W
3With capacitor C
2The two ends of parallel circuit, the capacitor C of this circuit
2, potentiometer W
3Be linked as some back ground connection with the B end of sensor; Potentiometer W
3The adjustable end resistance R that is connected in series
10, R
10The other end and sensor D end is connected, the D end of sensor also will and resistance R
11Connect resistance R
11The other end be connected with " " input end of differential amplifier A, also connect resistance R at this
13An end, resistance R
13With potentiometer W
5Series connection, potentiometer W
5The other end link to each other with the output terminal of differential amplifier A; Resistance R
15The output terminal of a termination differential amplifier A, resistance R
15Other end ground connection, the C of pressure transducer end and resistance R
12Connect R
12"+" input end and the resistance R of another termination differential amplifier
14An end, resistance R
14Other end ground connection; The external again potentiometer W of differential amplifier
6, potentiometer W
6Adjustable termination power+V
2
4. explosion-proof type temperature, pressure self-actuated controller according to claim 1 is characterized in that: relatively filtering circuit constitutes in the following manner: by multichannel utility power+V
2Resistance R is connected in series
16With potentiometer W
6, potentiometer W
6Other end ground connection; Potentiometer W
6Adjustable end is connected comparison signal U with comparer " " input end
0Connect "+" input end of comparer, in this resistance R that also is connected in parallel
4B, resistance R
4BThe output terminal U of another termination comparer
01, resistance R again is connected in parallel in herein
4, resistance R
4Another termination power+V
2Resistance R
4AThe output terminal U of a termination comparer
01, resistance R
4AAnother termination filter capacitor C
4BAnodal and connect output terminal U
OutCapacitor C
4BMinus earth.
5. explosion-proof type temperature, pressure self-actuated controller according to claim 1, it is characterized in that: the master control display circuit is to constitute in the following manner: the six tunnel compare the output terminal U of filtering circuit
OutBe connected with six phase inverter CD4049 respectively, the output terminal of six phase inverters is connected with six input ends among the eight Sheffer stroke gate CD4068 respectively again, these six input ends again respectively with two groups of four d flip-flop CD4044 in 6 d type flip flops be provided with the end be connected, connect the respectively negative electrode of six display lamp LED of the output terminals of six tunnel memory d type flip flops, the anode of six LED is resistance in series R respectively again, the other end of six resistance R respectively with multichannel utility power+V
2Connect; Resistance R
23An end promptly to be connected the timing converter that also will be connected in parallel, R with two Sheffer stroke gate CD4011
23Another termination+V
2Resistance R
24An end also meet multichannel utility power+V
2, R
24The other end be connected in series and connect with the output terminal of light warning circuit again behind the light emitting diode; Hold and resistance R memory D flip-flop CD4044 put " 0 "
22And start stop switch is connected in parallel R
22The other end and+V
2Connect; The centre tap of start stop switch is connected with eight Sheffer stroke gate CD4068, one input end, and " 1 " end of putting of latching circuit is connected with eight Sheffer stroke gate CD4068 output terminals, and " 0 " end of putting of latching circuit is connected with timing converter; The input end of light warning is connected with the output terminal of eight Sheffer stroke gate CD4068; Timing converter by four two-way switch CD4066 draw two lines respectively with capacitor C
1Negative pole be connected capacitor C with anodal
1Positive pole be connected back connecting resistance R with two Sheffer stroke gate CD4011 input ends
23The output terminal of two Sheffer stroke gate CD4011 is connected with the input end of two Sheffer stroke gate CD4011 of driving circuit, and the collector of triode is connected resistance R with the automatic start-stop machine circuit in driver
12One termination+V
2The centre tap of putting " 1 " termination start stop switch of driver.
6. explosion-proof type temperature, pressure self-actuated controller according to claim 1, it is characterized in that: the automatic start-stop control circuit is to connect in the following manner: an end of the drive coil of relay is connected with the transistor collector in the driving circuit, the other end of drive coil and+V
4Connect; Drive coil and diode D
1Anodal and another light emitting diode D
12Negative pole link to each other D
12Positive pole and resistance R
16Series connection, resistance R
16The other end and diode D
1Negative pole link to each other and at this and multichannel utility power+V
4Connect; An end and the capacitor C of often opening output node of relay
3Connect C
3The other end and resistance R
13Series connection, resistance R
13The other end be connected with the other end of relay normally open node, also connect diode D at this
2Negative pole, diode D
2Positive pole be connected with down-hole explosion-proof motor starting outfit.
7. explosion-proof type temperature, pressure self-actuated controller according to claim 1, it is characterized in that: shell is to be cast by the HT250 gray iron, upper and lower covers adopts static flame proof faying face, the smooth finish of flame proof faying face is not less than Δ 3.2, Transparent Parts is for bearing the tempered glass of 4T, the shell inside surface is coated with 1320 are-tight lacquers, and explosion suppresion surface carries out being coated with the 204-1 anti-corrosive grease after phosphatization is handled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96209440 CN2283876Y (en) | 1996-05-31 | 1996-05-31 | Explosion-proof type temp pressure automatic controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96209440 CN2283876Y (en) | 1996-05-31 | 1996-05-31 | Explosion-proof type temp pressure automatic controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2283876Y true CN2283876Y (en) | 1998-06-10 |
Family
ID=33893088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96209440 Expired - Fee Related CN2283876Y (en) | 1996-05-31 | 1996-05-31 | Explosion-proof type temp pressure automatic controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2283876Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101680597B (en) * | 2007-05-24 | 2011-08-24 | 丰田自动车株式会社 | Tank |
| CN104360158A (en) * | 2014-11-18 | 2015-02-18 | 国电南瑞科技股份有限公司 | Self-adaptive key phase collection circuit |
-
1996
- 1996-05-31 CN CN 96209440 patent/CN2283876Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101680597B (en) * | 2007-05-24 | 2011-08-24 | 丰田自动车株式会社 | Tank |
| CN104360158A (en) * | 2014-11-18 | 2015-02-18 | 国电南瑞科技股份有限公司 | Self-adaptive key phase collection circuit |
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| CF01 | Termination of patent right due to non-payment of annual fee |