CN201020295Y - Rectification tower - Google Patents
Rectification tower Download PDFInfo
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- CN201020295Y CN201020295Y CNU2007200954621U CN200720095462U CN201020295Y CN 201020295 Y CN201020295 Y CN 201020295Y CN U2007200954621 U CNU2007200954621 U CN U2007200954621U CN 200720095462 U CN200720095462 U CN 200720095462U CN 201020295 Y CN201020295 Y CN 201020295Y
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- liquid
- rectifying column
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- discharge
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Abstract
The utility model relates to rectification tower and is characterized in that an autoclave liquid discharge device of the rectification tower is composed of an and-gate logical control device with two parameters of liquid temperature and liquid level, comprising a glass tube liquid level meter filled with the black body, an electric contact thermometer, a liquid discharge solenoid valve and an and-gate logical circuit with an upper liquid level limit photoelectric unit, a lower liquid level limit photoelectric unit and six connection terminals; the liquid level meter and a controlled tower pot together form a connector and the filled black body can float in a glass tube of the liquid level meter for connecting with the liquid above and moving with the liquid level; both the upper and lower liquid level limit photoelectric units comprise a light sensitive diode and a light source electric bulb. The light sensitive diode and the light source electric bulb form four connecting terminals respectively and the four connecting terminals are connected with the four terminals of the And-gate logical control circuit; the light sensitive diode and the light source electric bulb are arranged at the both sides of the glass tube liquid level meter respectively. The mounting heights of the upper and lower liquid level limit photoelectric units are respectively the height of the discharged liquid level and the discharge-stop liquid level; of the other two terminals, a terminal is connected with the electric contact thermometer and the other terminal is connected with a drive power supply of a liquid discharge solenoid valve.
Description
Technical field
The utility model relates to the still liquid emission control technique of equipment such as a kind of rectifying column, being specially a kind of all being reached by two parameters of the gentle liquid level of liquid sets the still liquid that numerical value can carry out " with door " logic self-con-tained unit control of fluid discharge operation and discharges rectifying column automatically, its alternative manual control still liquid discharging, international Patent classificating number intends being Int.Cl.B41J 2/175 (2006.01).
Technical background
At present, in industrial liquid emission control systems or device, for example in the chemical separating field, the liquid level control of rectifying tower bottoms and exhaust system or device can divide two classes:
One class is the rectifying tower bottoms exhaust system of manual control.This exhaust system determines whether discharge opeing by the post operation personnel according to the reading of thermometer and liquid level gauge, and finishes discharge opeing by its manual operation fully, and simultaneously, discharge capacity is decided according to operating personnel's personal experience.In other words, the rectifying tower bottoms exhaust system of manual control needs the post operation personnel ceaselessly to patrol and examine thermometer and liquid level gauge, requires to make the decision of whether discharge opeing according to operational procedure, and carries out reasonable operation.Obviously, this control system is subjected to the influence of all multiple non-technical factors such as working attitude, mood, experience and health (fatigue) state of employed personnel, and controllable degree is low, and labour intensity is big, and potential safety hazard is many.The rectifying tower bottoms exhaust system of this manual control particularly in the medium-sized and small enterprises, is used very general in reality.
Another kind of is computer-controlled rectifying tower bottoms automatic discharge system.The temperature signal of liquid carries out remote auto control in signal that this exhaust system is sent according to upper and lower limit liquid level sensor in the rectifying column by computer and the rectifying column still, and whether decision still liquid discharges and what discharge.Obviously, this exhaust system controllable degree height, labour intensity is little, and potential safety hazard is few.But this exhaust system need be installed the remote level controller table in the rectifying column still, relies on computer system to carry out data acquisition, judge and control in real time.This still liquid exhaust system expense costliness, maintenance cost is big, and the production cost height also has quite high rating requirement to the post personnel.At present, in medium-sized and small enterprises, be difficult for application.
The utility model content
At the deficiencies in the prior art, the technical problems to be solved in the utility model is that a kind of rectifying column is provided.The liquid-discharging system of this rectifying column can substitute manually-operated fully, can carry out " with door " logic control according to the temperature and the liquid level of controlled device liquid, finishes the discharging of liquid ormal weight automatically.This rectifying column can substitute manual control fully, has greatly alleviated post personnel's labour intensity, under low cost, high efficiency, hommization and safer condition, realizes the automatic and quantitatively discharging of still liquid such as rectifying column.
The technical scheme that the utility model solves described rectifying column technical problem is: design a kind of rectifying column, the still liquid tapping equipment that it is characterized in that this rectifying column is made of " with door " logic control device that gentle liquid level two parameters of liquid constitute: described " with door " logic control device comprises glass-tube liquid level meter, electric contact thermometer, the draining solenoid valve of interior dress " black matrix " and contains the spacing photoelectric subassembly of upper and lower liquid level and have " with door " logic control circuits of six binding posts; Described glass-tube liquid level meter and controlled tower still constitute Communicating device, and " black matrix " floatability of dress and moves up and down with the variation of its liquid level in the level gauge glass pipe above UNICOM's liquid in it; The spacing photoelectric subassembly of described upper and lower liquid level includes photodiode and radiation source small electric bulb, and described photodiode and radiation source small electric bulb constitute four splicing ears respectively, and is connected with four terminals of " with door " logic control circuit; Described photodiode and radiation source small electric bulb are installed on the both sides of described glass-tube liquid level meter respectively, and the setting height(from bottom) of the spacing photoelectric subassembly of described upper and lower liquid level is respectively the height that liquid level need be discharged and be stopped to discharge; Two other terminal of described " with door " logic circuit, one is connected with described electric contact thermometer, and another is connected with described draining solenoid valve driving power.
Compared with prior art, rectifying column described in the utility model, can be with manual observation temperature on duty and liquid level instrument, judge whether Open valve discharging still liquid and close still liquid discharge solenoid valve, the many subjective judgements and the manual control link of control discharge capacity, fluid discharge " with the door " logic circuit control apparatus that is made up by universal elements is replaced fully.The liquid discharge device control of the utility model rectifying column is accurate, and reliable operation is not subjected to employed personnel's artificial factor, and is with low cost, and efficient improves, and labour intensity reduces, and security is good; Compare with computer-controlled liquid automatic discharge system, service behaviour is identical, and price significantly reduces (the utility model liquid-discharging system of embodiment design only be about smart instrumentation price 5%), and it is simple in structure, the gentle liquid level parameter adjustment of liquid is very convenient, technical merit to the post personnel does not have specific (special) requirements, is highly susceptible to that industrialization is actual to be applied.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model rectifying column;
Fig. 2 is the still liquid tapping equipment structural representation of a kind of embodiment of the utility model rectifying column;
Fig. 3 is the still liquid tapping equipment control circuit connection diagram of a kind of embodiment of the utility model rectifying column;
Fig. 4 is the fluid discharge start-up circuit schematic diagram of a kind of embodiment of still liquid tapping equipment of the utility model rectifying column;
Fig. 5 is the circuits for triggering schematic diagram of the still liquid tapping equipment fluid discharge circuit of a kind of embodiment of the utility model rectifying column;
Fig. 6 is the still liquid tapping equipment stop liquid discharging circuit diagram of a kind of embodiment of the utility model rectifying column;
Fig. 7 is the circuits for triggering figure of the still liquid tapping equipment stop liquid discharging of a kind of embodiment of the utility model rectifying column.
The specific embodiment
Further narrate the utility model below in conjunction with embodiment and accompanying drawing thereof, but the embodiment explanation does not limit the utility model claim:
The major technique feature of a kind of rectifying column of the utility model design is automatic still liquid tapping equipment or the system (referring to Fig. 1-7) with " with door " logic control.This still liquid tapping equipment mainly comprises electric contact thermometer 2, draining solenoid valve 3, glass-tube liquid level meter 4, the spacing photoelectric subassembly 5,7 of upper and lower liquid level.Described electric contact thermometer 2 is pressed " with door " logic circuit as sensory package with the associated terminal in the control cabinet with the spacing photoelectric subassembly 5,7 of upper and lower liquid level and is connected, and constitutes " with door " logic control system." with door " described in the utility model logic control device is, when default temperature signal output and liquid level signal satisfied simultaneously, device just produced the automatic control system that the discharge opeing working signal is exported.
The described glass-tube liquid level meter of the utility model rectifying tower bottoms tapping equipment 4 is (hereinafter to be referred as liquid level gauge, referring to Fig. 1 and 2) and controlled tower still 1 formation Communicating device, it is consistent to be that liquid level and liquid level in the controlled tower still 1 in liquid level gauge 4 glass tubes remains, and the liquid level in liquid level gauge 4 glass tubes has been represented the interior liquid level of controlled tower still 1 in other words." black matrix " 6 is housed in the described liquid level gauge 4, in other words described " black matrix " 6 packed in conventional liquid level gauge 4 glass tubes, above the liquid of described " black matrix " 6 floatabilitys in liquid level gauge 4 glass tubes, and along with the liquid level of UNICOM in the glass tube moves up and down.Described " black matrix " 6 is low-density nonmetallic materials, be insoluble to controlled liquid to guarantee it, and floatability all the time thereon.The utility model embodiment has adopted low-density pvc material.
By technological requirement, the spacing photoelectric subassembly 5,7 of described upper and lower liquid level is set respectively and is installed in the upper and lower extreme position that controlled liquid level need be discharged and be stopped to discharge, to transmit controlled liquid level command signal.The leading-out terminal b of the described photodiode 51 (abbreviation diode) of going up the spacing photoelectric subassembly 5 of liquid level and radiation source small electric bulb 52 (abbreviation small electric bulb) and c respectively with terminal plate 8 on corresponding terminal b ' be connected with c '.The b terminal of described diode 51 provides " switching " triggering signal (referring to Fig. 4,5) for still liquid discharging circuit start, and effect provides the fluid discharge instruction; The c terminal of described small electric bulb 52 provides work light for photodiode.The diode 71 of the described down spacing photoelectric subassembly 7 of liquid level and the leading-out terminal d of small electric bulb 72 and e respectively with terminal plate 8 on corresponding terminal d ' be connected with e ', the operation principle of described diode 71 is identical with described diode 51, but effect is opposite, and promptly it provides liquid to stop the discharging instruction.
The sensory package of installing on the described liquid level gauge 4 be installed in control cabinet terminal plate 8 (hereinafter to be referred as terminal plate) on corresponding binding post be connected following (referring to Fig. 3): described electric contact thermometer 2 (being the DWJ among Fig. 4), in " with door " logic circuit, be connected with a ' number terminal on the terminal plate 8, effect is to provide a kind of control signal for " with door " logic circuit, promptly have only the fluid temperature in the tower still 1 to reach when setting numerical value, logic control circuit could be opened, otherwise control circuit is off-state.
The utility model rectifying column described " with door " logic circuit is installed in the described circuit control box (referring to Fig. 3), and draws 6 set of connections terminals on described terminal plate 8, uses a '-f ' expression respectively.Wherein,
A ' number terminal is the terminal that is connected with the binding post a of described electric contact thermometer 2;
B ', c ' number terminal is respectively the terminal that is connected with small electric bulb 52 with the described diode 51 of going up the spacing photoelectric subassembly 5 of liquid level;
D ', e ' number terminal is respectively the terminal that is connected with small electric bulb 72 with the described diode 71 of the spacing photoelectric subassembly 7 of liquid level down;
F ' number terminal is the terminal that is connected with draining solenoid valve 3 driving power binding post f.
Described discharge opeing electrically-controlled valve 3 i.e. DFC assembly (as shown in Figure 4) in " with door " logic circuit is connected with f ' number terminal of terminal plate 8, with the driving power of the acquisition startup or the discharge opeing electrically-controlled valve 3 of closing;
Of the present utility modelly be further characterized in that described upper and lower photoelectricity level sensing assembly 5,7 has the upper and lower governor motion 11,12 that can do upper and lower Height Adjustment and locking along described glass-tube liquid level meter 4 respectively.Described upper and lower photoelectricity level sensing assembly 5,7 can be done upper and lower moving by upper and lower governor motion 11,12 along described glass-tube liquid level meter 4 respectively, adjusts height, to adapt to different technological requirements.In case after the upper and lower extreme position height setting of fluid discharge is adjusted, can lock upper and lower photoelectricity level sensing assembly 5 and 7 respectively by governor motion 11,12.Obviously, the high and low position adjustment of described upper and lower photoelectricity level sensing assembly 5,7 does not influence the formation of liquid level gauge 4 and tower still 1 Communicating device.Version does not have special requirement to 11,12 of described upper and lower governor motions as prior art, and simple and practical is good.
" with door " logic control circuit that the usefulness liquid level of the ingenious design of the utility model, two non-electrical parameters of temperature constitute is the key technology of the still liquid discharging automatic control system of the utility model rectifying column.After liquid level and liquid temperature configured parameter by technological requirement, level gauging was finished by liquid level gauge 4 and interlock circuit thereof; Temperature measuring is finished by electric jointing temp meter 2 and interlock circuit thereof, also be the actual core data of obtaining automatic control system after, fluid discharge can be finished automatically.When temperature reaches setting numerical value, when liquid level reached upper limit position, " with door " logic control circuit sent the instruction of fluid discharge, and emissions operation begins; When liquid level dropped to the lower position, " with door " logic control circuit sent the instruction that liquid stops to discharge, and emissions operation stops.
" with door " the logic control circuit operation principle of the utility model rectifying column and control procedure following (referring to Fig. 4 to Fig. 7) thereof:
Described " black matrix " 6 (the thick black line segment among Fig. 5,6) can move up and down in the level gauge glass pipe with the liquid level lifting.When " black matrix " 6 sheltered from diode 51 (GD1) from the illumination of small electric bulb 52 (DZ1), relay C2.1 cut off the power supply immediately, the normally-closed contact C2.2 moment closure (referring to Fig. 4) that is attached thereto.If this moment, the temperature of still liquid reached when setting numerical value, electric contact thermometer 2 (DWJ) is closure state, and still liquid discharging start-up circuit is switched on immediately, and still liquid emissions operation begins; If the temperature of still liquid does not reach setting numerical value as yet, electric contact thermometer 2 is off-state, down circuitry, and still liquid emissions operation can not carry out (referring to Fig. 4).Descend with liquid level, when described " black matrix " 6 moves to the limit inferior position (referring to Fig. 7), promptly enter down between the small electric bulb 72 (DZ2) and diode 71 (GD2) of liquid level photoelectric subassembly 7, when " black matrix " 6 sheltered from diode 71 fully from the illumination of small electric bulb 72, relay C4.1 cut off the power supply immediately.The normally-closed contact C4.2 of relay C4.1 is closure state (referring to Fig. 6) immediately, and circuit is "on" position immediately, relay C3.1 energising.It is connected the normally-closed contact C3.2 (referring to Fig. 4) that starts in the still liquid discharging circuit and will disconnects immediately, and still liquid discharging start-up circuit cuts off the power supply immediately, and still liquid emissions operation stops immediately.Thereby the automatic discharging and the control of tower bottoms position have been realized.
The operation principle and the process of the liquid discharge device of rectifying column described in the utility model are as follows: at first, the power switch K (referring to Fig. 3) of device for opening, Z is luminous for the circuit control box indicator lamp, and " with door " logic control device enters treats duty." black matrix " 6 in the described liquid level gauge 4 moves up and down with the liquid level lifting in glass tube.When the liquid level rising makes that " black matrix " 6 shelters from the illumination of the described upward diode 51 of the spacing photoelectric subassembly 5 of liquid level fully, originally be subjected to the diode 51 of light source irradiation to change state in moment always, provide liquid level to reach the limit of positional information for the control circuit at its place, and the non-electric charge quantity signalling that this liquid level is changed changes electric quantity signal into, makes " with door " logic control circuit send the corresponding work instruction.If this moment, temperature reached the setting numerical value of discharge liquid, system is with automatic start liquid discharge solenoid valve 3, and the discharge opeing operation begins.After discharge opeing began, liquid level descended immediately, and " black matrix " also moves down thereupon.When " black matrix " moves to down the liquid level extreme position, originally be subjected to the illumination pop-off of the diode light 71 of described light source small electric bulb 72 irradiations always, the circuit at its place must change state thereupon, and the non-electric charge quantity signalling that this liquid level is changed changes electric quantity signal into, make " with door " logic control circuit send the corresponding work instruction, instruction discharge solenoid valve 3 is closed immediately, stops the discharge opeing operation.After this, liquid level begins again to rise, and " black matrix " also moves up thereupon, and system begins next periodic duty, promptly patrol and examine again and again fluid temperature, test liquid level, and automatically logic judge whether should carry out the discharging of controlled liquid or stop.
No matter which kind of height is controlled liquid level be in, why numerical value, as long as its temperature is lower than the numerical value of technique initialization, the contact of described electric contact thermometer 2 promptly is off-state (DWJ state as shown in Figure 4), the discharging start-up circuit of controlled liquid must be in off-position, also is that the discharge opeing operation is in halted state.And when the temperature of controlled liquid reached the numerical value of technique initialization, when the tower bottoms position had also arrived the upper limit position of setting, at this moment, two physical quantitys of " with door " logic circuit had satisfied requirement, opened discharge opeing operation beginning so start still liquid discharging circuit; If liquid level does not reach setting numerical value, " with door " logic circuit has only a physical quantity input, can not satisfy the entry condition of logic circuit, and still liquid discharging circuit can't start, and the discharge opeing operation can not be carried out.
The utility model is not addressed part, is applicable to prior art.
The liquid discharge device of the utility model rectifying column can be applied in the liquid discharge apparatus of the two-parameter control of any needs, directly manufactures or manual control is transformed into the rectifying column of the automatic discharging of liquid.As embodiment, the utility model liquid discharge device both can be used for being installed in the still liquid exhaust system of the rectifying column that has traditional manual control now, replace manual control, transform it as automatic discharging rectifying column, also can when making rectifying column, directly adopt described " with door " logic control liquid discharge device, manufacture the rectifying column of automatic discharging still liquid.Two parameters relationships of rectifying tower bottoms emissions operation and liquid level and liquid temperature are great.Liquid level is up to standard, and liquid Wen Wei reaches when setting numerical value, and the discharging of still liquid can reduce the rate of recovery greatly, seriously exceeds the environment protection emission index; Liquid temperature, liquid level are all up to standard, and still liquid does not discharge, and can cause liquid level to exceed standard, and will cause the rectifying column operation exception.The rectifying column of manual control turns round continuously, when still liquid discharges, what are discharge capacity? lean against the hilllock personnel entirely and ceaselessly patrol and examine temperature, liquid level two parameters, size according to parameter is made judgement, whether arranges still liquid, if discharge, is liquid level reduced to and is where then stopped discharging etc.? all be subjected to the influence of all multiple non-technical factors such as working attitude, mood, experience and health (fatigue) state of employed personnel, controllable degree is low, and labour intensity is big, and potential safety hazard is many.The utility model rectifying column fluid discharge " with door " logic control device or system can detect two parameters of the gentle liquid level of liquid precisely, in time, reliably, and whether need the instruction of discharging and stopping, finishing emissions operation automatically if sending still liquid accurately.In the still liquid emissions operation of rectifying column, can substitute employed personnel fully ceaselessly and the work that repeats.In the scope known to the applicant, substitute manual control about adopting " and door " logic control system or device, the document of finishing the discharging of rectifying tower bottoms does not automatically appear in the newspapers as yet.
Claims (4)
1. rectifying column is characterized in that the still liquid tapping equipment of this rectifying column is made of " with door " logic control device that gentle liquid level two parameters of liquid constitute: described " with door " logic control device comprises glass-tube liquid level meter, electric contact thermometer, the draining solenoid valve of interior dress " black matrix " and contains the spacing photoelectric subassembly of upper and lower liquid level and have " with door " logic control circuits of six binding posts; Described glass-tube liquid level meter and controlled tower still constitute Communicating device, and " black matrix " floatability of dress and moves up and down with the variation of its liquid level in the level gauge glass pipe above UNICOM's liquid in it; The spacing photoelectric subassembly of described upper and lower liquid level includes photodiode and radiation source small electric bulb, and described photodiode and radiation source small electric bulb constitute four splicing ears respectively, and is connected with four terminals of " with door " logic control circuit; Described photodiode and radiation source small electric bulb are installed on the both sides of described glass-tube liquid level meter respectively, and the setting height(from bottom) of the spacing photoelectric subassembly of described upper and lower liquid level is respectively the height that liquid level need be discharged and be stopped to discharge; Two other terminal of described " with door " logic circuit, one is connected with described electric contact thermometer, and another is connected with described draining solenoid valve driving power.
2. rectifying column according to claim 1 is characterized in that described upper and lower photoelectricity level sensing assembly has the upper and lower governor motion that can do upper and lower Height Adjustment and locking along described glass-tube liquid level meter respectively.
3. rectifying column according to claim 1 is characterized in that described " black matrix " is for being insoluble to the low density non-metallic material of controlled liquid.
4. according to each described rectifying column of claim 1-3, it is characterized in that described " black matrix " is low-density pvc material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200954621U CN201020295Y (en) | 2007-03-12 | 2007-03-12 | Rectification tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200954621U CN201020295Y (en) | 2007-03-12 | 2007-03-12 | Rectification tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201020295Y true CN201020295Y (en) | 2008-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200954621U Expired - Lifetime CN201020295Y (en) | 2007-03-12 | 2007-03-12 | Rectification tower |
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| Country | Link |
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| CN (1) | CN201020295Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556684A (en) * | 2019-01-15 | 2019-04-02 | 淮安信息职业技术学院 | General type level sensing and remote transmitting system |
-
2007
- 2007-03-12 CN CNU2007200954621U patent/CN201020295Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556684A (en) * | 2019-01-15 | 2019-04-02 | 淮安信息职业技术学院 | General type level sensing and remote transmitting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070312 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |