CN2656818Y - Automatic water supply device for steam boiler - Google Patents
Automatic water supply device for steam boiler Download PDFInfo
- Publication number
- CN2656818Y CN2656818Y CN 200320106084 CN200320106084U CN2656818Y CN 2656818 Y CN2656818 Y CN 2656818Y CN 200320106084 CN200320106084 CN 200320106084 CN 200320106084 U CN200320106084 U CN 200320106084U CN 2656818 Y CN2656818 Y CN 2656818Y
- Authority
- CN
- China
- Prior art keywords
- amplifying circuit
- electric contact
- drive circuit
- circuit
- connects
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an automatic watering device used in steam boiler, which improves the bipolar amplifying circuit and the drive circuit in the secondary display instrument of dual color electric contact liquid level meter (3) on the basis of the original automatic watering device composing of the dual color electric contact liquid level meter and a make-up water pump (4), to make the signal sent from the boiler water level displayed by a measurement barrel (2) in the dual color electric contact liquid level meter at the upper and the lower positive stops transmitted to the drive circuit after being amplified and filtered twice through a bipolar amplification circuit. Then the make-up water pump (4) supplies water to a boiler container or stops supplying water. Therefore, the utility model is characterized in that the signal is processed reliably and correctly, and is not influenced by the variation of boiler operating parameters; the utility model has a good property of automatic watering and is easy to maintain.
Description
One, affiliated technical field
The utility model is a kind of automatic water-replenishing device that is used for steam boiler.
Two, background technology
The domestic used automatic water-replenishing device of part steam boiler is to adopt formations such as double-colored water level display instrument and waterworks at present, and its water level shows the double-colored remote level indicator of employing; Double-colored remote level indicator utilizes the luminous tube simulation of two kinds of colors to show water and the position of vapour in boiler vessel.Prescribe a time limit when water level meets the requirements of under the water level, double-colored remote level indicator gives the alarm signal automatically also by its secondary display instrument output drive signal, drives waterworks and carries out moisturizing.But the jitter of exporting under the variable element operating conditions such as often starting, stop at boiler causes phenomenons such as the untimely or moisturizing of moisturizing is frequent, has influenced the security of operation of steam boiler.
Three, summary of the invention
The purpose of this utility model is for steam boiler provides a kind of automatic water-replenishing device, and this device signal is handled accurately reliable, the influence that not changed by boiler operating parameter, and the automatic water supplement performance is good, for ease of maintenaince etc.
For achieving the above object, the technical scheme taked of the utility model is that circuit to secondary Displaying Meter in the double-colored remote level indicator improves.Be that the utility model is made up of double-colored remote level indicator, small pump etc.Double-colored remote level indicator is formed by measuring tube, secondary Displaying Meter etc.Measure tube and be fixed on the appropriate location of boiler vessel, measure tube and be provided with two electric contacts, wherein electric contact I is a upper limit water level electric contact, and electric contact II is a lower limit water level electric contact.Be provided with the two poles of the earth amplifying circuit, drive circuit etc. in the secondary Displaying Meter, an end of the two poles of the earth amplifying circuit connects with two electric contacts measuring tube, the other end connects with drive circuit, and drive circuit connects with small pump.The two poles of the earth amplifying circuit is made up of amplifying circuit I, amplifying circuit II etc.The end of amplifying circuit I connects the termination of pumping auxiliary reclay J in the other end and the drive circuit with the electrode points I that measures tube
2Connect, the end of amplifying circuit II connects with an electric contact II who measures tin, the turn on pump auxiliary reclay J in the other end and the drive circuit
1Connect.
Amplifying circuit I, amplifying circuit II are by R
1, BG
1, C
1, R
2, BG
2Deng composition.R
1Be resistance, BG
1Be three grades of amplifier tubes of 3DG series, C
1Be electrochemical capacitor, R
2Be resistance, BG
2Be three utmost point amplifier tubes.
Drive circuit is by turn on pump auxiliary reclay J
2, termination of pumping auxiliary reclay J
1, stop button TA, start button QA, small pump contactor C, Deng composition, when the boiler vessel middle water level drops to the lower limit water level of regulation requirement, the electric contact II that measures in the tube sends signal, signal is through the amplification of amplifying circuit II secondary, filtering, be transferred to drive circuit, the turn on pump auxiliary reclay J in drive circuit
2, small pump contactor C, make small pump start feedwater.When the boiler vessel middle water level rose to upper limit water level, the electric contact I that measures in the tube sent signal, and signal is transferred to the termination of pumping center-off device J in the drive circuit after the amplification of amplifying circuit I secondary, filtering
1, small pump contactor C, make small pump stop the feedwater.
Because the utility model improves the two poles of the earth amplifying circuit, drive circuit in the secondary Displaying Meter of former double-colored remote level indicator, the signal that electric contact I, electric contact II send in the measurement tube is respectively through amplifying circuit I, the amplification of amplifying circuit II secondary, filtering, can not be subjected to the influence of the variation of boiler operating parameter, therefore having signal handles accurately reliable, it is influential not changed by boiler operating parameter, the automatic water supplement performance is good, for ease of maintenaince waits characteristics.
Four, description of drawings
Fig. 1 is the utility model schematic diagram;
Fig. 2 is the utility model the two poles of the earth amplifying circuit schematic diagrams;
Fig. 3 is the utility model drive circuit schematic diagram.
Five, specific implementation method
The utility model is on the basis of former automatic water-replenishing device, and the circuit in the secondary Displaying Meter is improved, and promptly the utility model is formed (see figure 1) by double-colored remote level indicator, small pump 4 etc.Double-colored remote level indicator is formed by measuring tube 2, secondary Displaying Meter 3 etc., measuring tube 2 is fixed on the appropriate location of boiler vessel 1, measure tube 2 and be provided with electric contact I5, electric contact II6, electric contact I5 is a upper limit water level electric contact, and present embodiment electric contact I5 is provided with on the positive 30% standard water position.Electric contact II6 is a lower limit water level electric contact, and the electric contact II6 of present embodiment is located on the negative 15% standard water position.Be provided with the two poles of the earth amplifying circuit, drive circuit etc. in the secondary Displaying Meter 3, the two poles of the earth amplifying circuit is formed (see figure 2) by amplifying circuit I, amplifying circuit II etc., and amplifying circuit I, amplifying circuit II are by R
1, BG
1, C
1, R
2, BG
2Deng composition, R
1Be resistance, present embodiment is 20K, 1/2W resistance; BG
1Be 3DG series three utmost point amplifier tubes, present embodiment is the 3DG6C triode; C
1Be electrochemical capacitor, present embodiment is the 10uF electrochemical capacitor; R
2Be resistance, present embodiment is 147 Ω resistance; BG
2Be 3DG series three utmost point amplifier tubes, present embodiment 3DG130B triode.One end of the two poles of the earth amplifying circuit by its amplifying circuit I, amplify we II of electricity and connect with the electric contact I5, the electric contact II6 that measure tube 2 respectively, the other end of the two poles of the earth amplifying circuit pass through its amplifying circuit I, amplifying circuit II respectively with drive circuit in termination of pumping auxiliary reclay J
1, turn on pump auxiliary reclay J
2Connect.Drive circuit includes termination of pumping auxiliary reclay J
1, turn on pump auxiliary reclay J
2, composition such as stop button TA, start button QA, water pump contactor C.Drive circuit is by its J
1, J
2Connect with small pump 4.
When in the boiler vessel 1 reduce to normal water level-15% under water the time, after electric contact II6 sends signal and amplify to filter by amplification appliance II secondary, be defeated by the turn on pump auxiliary reclay J in the drive circuit
2And by small pump 4 contactor C, small pump 4 is fed water in boiler vessel 1, when the water in the boiler vessel 1 rose to normal water level+30%, in like manner, I5 sent signal by electric contact, by amplifying circuit I, termination of pumping auxiliary reclay J
1, small pump contactor C, small pump 4 is shut down, stop feedwater.Because the utility model has improved the circuit of secondary Displaying Meter 3, upper and lower limit water level signal in the boiler vessel 1, secondary amplification filtering through the two poles of the earth amplifying circuit, make the signal transmission accurately and reliably, the influence that not changed by boiler operating parameter, handle accurately reliably so the utlity model has signal, be not subjected to boiler operating parameter variable effect, automatic water supplement performance good, for ease of maintenaince wait characteristics.
Claims (1)
- A kind ofly include double-colored remote level indicator, the steam boiler automatic water-replenishing device of small pump (4), double-colored remote level indicator includes measures tube (2), secondary Displaying Meter (3), measure tube (2) and be provided with two electric contacts, wherein electric contact I (5) is a upper limit water level electric contact, electric contact II (6) is a lower limit water level electric contact, the secondary Displaying Meter is provided with the two poles of the earth amplifying circuit in (3), drive circuit, one end of the two poles of the earth amplifying circuit and two electric contacts (5) of measuring tube (2), (6) connect, the other end connects with drive circuit, drive circuit connects with small pump, the two poles of the earth amplifying circuit includes amplifying circuit I, amplifying circuit II, the end of amplifying circuit I connects with the electric contact I (5) that measures tube (2), the end of amplifying circuit II connects with the electric contact II (6) that measures tube (2), it is characterized in that the other end of amplifying circuit I connects with termination of pumping intermediate relay I in the drive circuit, the other end of amplifying circuit II connects with turn on pump auxiliary reclay J in the drive circuit; All contain R among amplifying circuit I, the amplifying circuit II 1, BG 1, C 1, R 2, BG 2, R 1Be resistance, BG 1Be three grades of amplifier tubes of 3DG series, C 1Be electrochemical capacitor, R 2Be resistance, BG 2Be three utmost point amplifier tubes; Drive circuit includes turn on pump auxiliary reclay J 2, termination of pumping auxiliary reclay J 1, stop button TA, start button QA, small pump contactor C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320106084 CN2656818Y (en) | 2003-10-10 | 2003-10-10 | Automatic water supply device for steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320106084 CN2656818Y (en) | 2003-10-10 | 2003-10-10 | Automatic water supply device for steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2656818Y true CN2656818Y (en) | 2004-11-17 |
Family
ID=34341481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320106084 Expired - Fee Related CN2656818Y (en) | 2003-10-10 | 2003-10-10 | Automatic water supply device for steam boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2656818Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855084A (en) * | 2018-12-31 | 2019-06-07 | 中国能源建设集团华东电力试验研究院有限公司 | Boiler feedwater liquidometer measures numerical value jump elimination system and control method |
-
2003
- 2003-10-10 CN CN 200320106084 patent/CN2656818Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855084A (en) * | 2018-12-31 | 2019-06-07 | 中国能源建设集团华东电力试验研究院有限公司 | Boiler feedwater liquidometer measures numerical value jump elimination system and control method |
| CN109855084B (en) * | 2018-12-31 | 2024-03-19 | 中国能源建设集团华东电力试验研究院有限公司 | Boiler makeup water level gauge measurement value jump eliminating system and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041117 Termination date: 20091110 |