CN218914888U - Be applied to drum boiler water and link to arrange automatic control economizer system - Google Patents
Be applied to drum boiler water and link to arrange automatic control economizer system Download PDFInfo
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- CN218914888U CN218914888U CN202223048990.5U CN202223048990U CN218914888U CN 218914888 U CN218914888 U CN 218914888U CN 202223048990 U CN202223048990 U CN 202223048990U CN 218914888 U CN218914888 U CN 218914888U
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Abstract
The utility model discloses an automatic control energy-saving system for continuous drainage of water in a drum boiler, which relates to the technical field of boiler water drainage and monitoring equipment and comprises a sampling analysis device, a conveying pipeline and a control device, wherein the sampling analysis device comprises a sampling pipeline connected with the drum boiler, a collector and an on-line analyzer for detecting the conductivity, the PH value and the silicon dioxide and phosphate content of the water in the drum boiler, the collector is connected with one end of the sampling pipeline far away from the drum boiler, the on-line analyzer is arranged in the collector, one end of the conveying pipeline is connected with the drum boiler, a blowdown flow detection device and a blowdown regulation door are arranged on the conveying pipeline, the blowdown flow detection device is arranged between the drum boiler and the blowdown regulation door, and the control device is respectively electrically connected with the on-line analyzer, the blowdown flow detection device and the blowdown regulation door.
Description
Technical Field
The utility model relates to the technical field of boiler water discharge and monitoring equipment, in particular to an automatic control energy-saving system applied to drum boiler water continuous discharge.
Background
The site is 240t/H circulating fluidized bed boiler, the drum pressure is 9.8Mpa, the temperature is set to 320 ℃, and the continuous discharge is the two-side discharge of the first and the second. The blow-down pipes are combined into a continuous discharge pipe before entering the continuous discharge expander, the pressure of the expander is 0.6MPa, the continuous discharge water enters the continuous discharge expander and is subjected to flash evaporation, the part of the flash evaporation into steam enters the deaerator through a pipeline of the continuous deaerator, and the residual unqualified furnace water without flash evaporation is discharged to the fixed discharge expander.
At present, the continuous discharge mode is that chemical laboratory staff informs operators to adjust a continuous discharge adjusting door according to the condition of the laboratory value of the furnace water, the furnace water value is obtained by means of manual laboratory, and the laboratory is performed twice per work. The process does not monitor the run-off flow. Based on the current operating conditions of the boiler, there is a need for retrofitting in several ways:
(1) The on-line chemical test instrument of the furnace water has an unstable phenomenon, and the problem of untimely continuous adjustment can be generated by manually adjusting the continuous adjustment door.
(2) The continuous discharge flow of the boiler cannot be accurately measured, the pollution discharge rate is a rough estimated value, and the data are inaccurate.
(3) The opening and closing of the boiler continuous-row adjusting door are not supported by detailed data, and the boiler continuous-row adjusting door cannot be accurately opened to a proper size, so that the problems of insufficient pollution discharge or excessive pollution discharge occur.
Disclosure of Invention
The automatic control energy-saving system for the continuous discharge of the drum boiler water is provided, the boiler water quality information and the boiler water flow information of a conveying pipeline are observed through a computer, and the opening degree of a pollution discharge adjusting door is controlled, so that the technical problems that the continuous discharge adjusting door cannot be adjusted in time by manpower, the boiler continuous discharge flow cannot be accurately measured, and pollution discharge is insufficient or excessive in pollution discharge in the conventional continuous discharge process of the drum boiler water are solved.
The utility model is realized by the following technical scheme:
an automatic control energy-saving system applied to drum boiler water continuous discharge, comprising:
the sampling analysis device comprises a sampling pipeline connected with the drum boiler, a collector and an online analyzer for detecting the water conductivity, the PH value and the silicon dioxide and phosphate radical content of the drum boiler, wherein the collector is connected with one end of the sampling pipeline far away from the drum boiler, and the online analyzer is arranged in the collector;
the device comprises a conveying pipeline, a waste water flow detection device and a waste water regulation door, wherein one end of the conveying pipeline is connected with a drum boiler, the conveying pipeline is provided with the waste water flow detection device and the waste water regulation door, and the waste water flow detection device is positioned between the drum boiler and the waste water regulation door;
and the control device is respectively and electrically connected with the online analyzer, the sewage discharge flow detection device and the sewage discharge adjusting door.
Preferably, the blowdown flow detection device comprises a special-shaped throttling element and a transmitter, wherein the special-shaped throttling element is positioned between the drum boiler and the blowdown adjusting door, the transmitter is arranged on the special-shaped throttling element, and the transmitter is electrically connected with the control device.
Preferably, the online analyzer comprises a PH value meter, a furnace water silicon meter, a phosphorus meter and a conductivity meter.
Preferably, a cooling device is arranged on the sampling pipeline.
Preferably, a filter is provided between the cooling device and the collector.
Preferably, a pressure reducing valve and a safety valve are arranged between the filter and the cooling device, and the safety valve is arranged between the filter and the pressure reducing valve.
Preferably, a temperature controller is further arranged between the filter and the safety valve.
Preferably, a flowmeter is arranged between the filter and the temperature controller.
Preferably, a manual sampling pipeline is arranged between the filter and the flowmeter, and a sampling valve is arranged on the manual sampling pipeline.
Preferably, the device further comprises an alarm device, and the alarm device is electrically connected with the control device.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
firstly, compared with the manual test of the boiler water, after the drum boiler water enters the collector through the sampling pipeline, the online analyzer can detect the conductivity, the PH value and the silicon dioxide and phosphate content of the boiler water in real time and send the information to the computer, and a worker can observe the information of the boiler water in real time through the computer and control the continuous-discharge adjusting door, so that the working efficiency is improved, and the operation is simple and convenient;
secondly, the sewage flow monitoring device on the conveying pipeline can monitor the flow of water in real time and send flow signals to the computer, and workers can observe flow information in real time and control the opening degree of the sewage regulating door through the computer, so that the water discharge capacity is accurately controlled.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
In the drawings, the reference numerals and corresponding part names:
1-drum boiler, 2-conveying pipeline, 3-collector, 4-blowdown flow detection device, 5-blowdown adjustment door, 6-sampling pipeline, 7-cooling device, 8-relief valve, 9-relief valve, 10-temperature controller, 11-flowmeter, 12-manual sampling pipeline, 13-filter, 14-sampling valve, 15-controlling means, 16-fixed row expansion vessel, 17-tandem expansion vessel, 18-deaerator.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In this embodiment, an automatic control energy-saving system for water continuous-discharge of a drum boiler is provided, as shown in fig. 1, including:
the sampling analysis device comprises a sampling pipeline 6 connected with the drum boiler 1, a collector 3 and an online analyzer for detecting the water conductivity, the PH value and the silicon dioxide and phosphate content of the drum boiler, wherein the collector 3 is connected with one end of the sampling pipeline 6 far away from the drum boiler 1, and the online analyzer is arranged in the collector 3;
a conveying pipeline 2, one end of the conveying pipeline 2 is connected with the drum boiler 1, a blowdown flow detection device 4 and a blowdown adjustment door 5 are arranged on the conveying pipeline 2, and the blowdown flow detection device 4 is positioned between the drum boiler 1 and the blowdown adjustment door 5; the sewage discharging adjusting door 5 is an electromagnetic control valve, and the electromagnetic control valve is electrically connected with the control device 15.
And the control device 15 is electrically connected with the online analyzer, the sewage discharge flow detection device 4 and the sewage discharge adjusting door 5 respectively, and the control device 15 is a computer provided with a DCS microcomputer control system. The DCS system is also called as a distributed control system, can realize distributed control while realizing centralized control, is mainly realized by means of a computer as a novel microcomputer control system, has the characteristics of high reliability, flexibility, harmony and openness, is a comprehensive equipment control device with complete control functions, and has good application effect in a thermal power plant machine.
Firstly, compared with the manual test of the boiler water, after the boiler water in the steam drum enters the collector through the sampling pipeline 6, the online analyzer can detect the conductivity, the PH value and the silicon dioxide and phosphate content of the boiler water in real time and send the information to the computer, and a worker can observe the information of the boiler water in real time through the computer, so that the working efficiency is improved, and the operation is simple and convenient;
secondly, the sewage flow monitoring device 4 on the conveying pipeline 2 can monitor the flow of water in real time and send flow signals to the computer, and staff can observe flow information in real time and control the opening degree of the sewage adjusting door 5 through the computer, so that the water discharge capacity is accurately controlled.
Further optimizing the above embodiment, the blowdown flow detection device 4 comprises a special-shaped throttling element and a transmitter, wherein the special-shaped throttling element is positioned between the drum boiler and the blowdown adjustment door 5, the transmitter is arranged on the special-shaped throttling element and is electrically connected with the control device 15, and the transmitter converts differential pressure generated at the special-shaped throttling element into a 4-20 mA DC standard current signal and transmits the signal to the computer.
Further optimizing the above embodiments, to achieve real-time detection of conductivity, PH, and silica and phosphate content in the boiler water, the online analyzer includes a PH meter, a furnace water silicon meter, a phosphorus meter, and a conductivity meter, and data detected by the PH meter, the furnace water silicon meter, the phosphorus meter, and the conductivity meter may be transmitted to a computer for use by an operator.
Further optimizing the above embodiment, the sampling pipe 6 is provided with a cooling device 7, the cooling device 7 is formed by connecting a single-coil cooler and a double-coil cooler in series, and the drum boiler water with high temperature can be rapidly cooled through the single-coil cooler and the double-coil cooler in sequence.
Further optimizing the above embodiment, in order to prevent dirt from entering the collector 3 and thereby affecting the detection effect of the on-line analyzer, a filter 13 is provided between the cooling device 7 and the collector 3.
Further optimizing the above embodiment, a pressure reducing valve 8 and a safety valve 9 are arranged between the filter 13 and the cooling device 7, the safety valve 9 is arranged between the filter 13 and the pressure reducing valve 8, wherein the pressure reducing valve 8 has the function of controlling the flow rate of the boiler water in the sampling pipeline 6, so that the flowing force of the sampling boiler water in the sampling pipeline 6 can reach 1500 ml-4L/min, and the safety valve 9 can prevent a high-temperature sample from damaging an instrument under the condition of over-temperature.
Further optimizing the above embodiment, a temperature controller 10 is further arranged between the filter 13 and the safety valve 9, the temperature of the boiler water in the sampling pipeline 6 needs to be controlled within 60 degrees, and the temperature information of the boiler water in the sampling pipeline 6 can be observed in real time through the temperature controller 10.
Further optimizing the above embodiment, a flow meter 11 is arranged between the filter 13 and the temperature controller 10, wherein the flow meter 11 can monitor the flow of boiler water in the sampling pipe 6 in real time.
Further optimizing the above embodiment, a manual sampling pipe 12 is provided between the filter 13 and the flowmeter 11, and a sampling valve 14 is provided on the manual sampling pipe 12.
Further optimizing the above embodiment, the system further comprises an alarm device electrically connected with the control device, wherein the alarm device comprises a buzzer and a flash lamp, the buzzer and the flash lamp are electrically connected with the control device, and when equipment in the system fails, the alarm device can enable a worker to find the failure in time and take corresponding safety measures.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. Be applied to drum boiler water and link row automation control economizer system, characterized by comprising:
the sampling analysis device comprises a sampling pipeline (6) connected with the drum boiler, a collector (3) and an online analyzer for detecting the conductivity, the PH value and the silicon dioxide and phosphate content of the drum boiler, wherein the collector (3) is connected with one end, far away from the drum boiler, of the sampling pipeline (6), and the online analyzer is arranged in the collector (3);
the device comprises a conveying pipeline (2), wherein one end of the conveying pipeline (2) is connected with a drum boiler, a blowdown flow detection device (4) and a blowdown adjustment door (5) are arranged on the conveying pipeline (2), and the blowdown flow detection device (4) is arranged between the drum boiler and the blowdown adjustment door (5);
and the control device (15) is electrically connected with the online analyzer, the sewage discharge flow detection device (4) and the sewage discharge adjusting door (5) respectively.
2. The automatic control energy-saving system applied to the water continuous-exhaust of the drum boiler according to claim 1, wherein the blowdown flow detection device (4) comprises a special-shaped throttling element and a transmitter, the special-shaped throttling element is positioned between the drum boiler and the blowdown adjustment door (5), the transmitter is arranged on the special-shaped throttling element, and the transmitter is electrically connected with the control device (15).
3. The automatic control energy-saving system for drum boiler water in-line control according to claim 1, wherein the online analyzer comprises a PH value meter, a boiler water silicon meter, a phosphorus meter and a conductivity meter.
4. An automatic control and energy saving system applied to drum boiler water row according to claim 1, characterized in that a cooling device (7) is arranged on the sampling pipeline (6).
5. An automatic control and energy saving system for drum boiler water row according to claim 4, characterized in that a filter (13) is arranged between the cooling device (7) and the collector (3).
6. The automatic control energy-saving system applied to the drum boiler water row according to claim 5, wherein a pressure reducing valve (8) and a safety valve (9) are arranged between the filter (13) and the cooling device (7), and the safety valve (9) is arranged between the filter (13) and the pressure reducing valve (8).
7. The automatic control energy-saving system applied to the drum boiler water row according to claim 6, wherein a temperature controller (10) is further arranged between the filter (13) and the safety valve (9).
8. An automatic control and energy saving system applied to drum boiler water row according to claim 7, characterized in that a flowmeter (11) is arranged between the filter (13) and the temperature controller (10).
9. The automatic control energy-saving system applied to the drum boiler water continuous-discharge of claim 8, wherein a manual sampling pipeline (12) is arranged between the filter (13) and the flowmeter (11), and a sampling valve (14) is arranged on the manual sampling pipeline (12).
10. An automatic control and energy saving system for drum boiler water row according to claim 1, further comprising an alarm device electrically connected to the control device (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223048990.5U CN218914888U (en) | 2022-11-16 | 2022-11-16 | Be applied to drum boiler water and link to arrange automatic control economizer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223048990.5U CN218914888U (en) | 2022-11-16 | 2022-11-16 | Be applied to drum boiler water and link to arrange automatic control economizer system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218914888U true CN218914888U (en) | 2023-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223048990.5U Active CN218914888U (en) | 2022-11-16 | 2022-11-16 | Be applied to drum boiler water and link to arrange automatic control economizer system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218914888U (en) |
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2022
- 2022-11-16 CN CN202223048990.5U patent/CN218914888U/en active Active
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