CN213983515U - Automatic blowdown system of vaporization flue - Google Patents
Automatic blowdown system of vaporization flue Download PDFInfo
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- CN213983515U CN213983515U CN202023218084.6U CN202023218084U CN213983515U CN 213983515 U CN213983515 U CN 213983515U CN 202023218084 U CN202023218084 U CN 202023218084U CN 213983515 U CN213983515 U CN 213983515U
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Abstract
The utility model discloses an automatic blowdown system of a vaporization flue, wherein a blowdown valve adopts an electric metal sealing ball valve (1); the automatic sewage draining system is provided with a PLC (programmable logic controller), and a control circuit of the electric metal sealing ball valve (1) is connected with the PLC. The utility model also discloses a control method of this automatic sewage discharging system. By adopting the technical scheme, the labor intensity of operators in pollution discharge is greatly reduced, and the personal safety of the operators is ensured; the water quality of the equipment during operation is improved, and the safe operation of the equipment is facilitated; the automation level is improved, and the positive effect is played for the safe operation of the vaporization flue system.
Description
Technical Field
The utility model belongs to the technical field of boiler equipment, a pollution discharge process technology thereof is related to. More specifically, the present invention relates to an automatic blowdown system for a vaporization flue.
Background
The method can keep the purity of the water in the vaporization flue, ensure the normal operation of the vaporization flue and avoid the burst of the pipeline due to the overburning caused by the water pollution. Because the water quality of the boiler contains impurities or scale is generated after long-term use, the water quality of the vaporization flue generates a large amount of impurities when the vaporization flue runs for a long time. If the impurities cannot be discharged in time, the water path or the steam path in the vaporization flue can be blocked, and the water vapor circulation is not smooth. The evaporation flue pipeline can be blocked due to no pollution discharge for a long time, a large amount of impurities and water scales are retained in the pipeline, the evaporation pipeline is over-burnt or the service life of the evaporation pipeline is shortened, the normal operation of production and equipment is influenced, and serious safety accidents can also occur seriously.
The drainage mode in the prior art is as follows: and manually opening and closing the manual sewage discharge valve to perform sewage discharge operation. The disadvantages of manual pollution discharge are as follows:
1. the device is completely operated by an operator on site, and has the advantages of more blow-down valves, long blow-down time, large workload and high labor intensity;
2. the temperature and the pressure are very high during pollution discharge, the working environment is severe, and the accurate control is difficult to carry out, so that the requirement on the responsibility of operators is high;
3. when the pollution discharge is carried out, operators do not know the actual parameter change of the unit operation, blind operation is easily caused, and the personal safety of the pollution discharge operators and other personnel and the equipment safety of the vaporization system are seriously threatened.
SUMMERY OF THE UTILITY MODEL
The utility model provides an automatic sewage system of vaporization flue, its purpose is to reduce operating personnel's intensity of labour, improve the security of operation.
In order to realize the purpose, the utility model discloses the technical scheme who takes does:
the utility model discloses an automatic blowdown system of a vaporization flue, which comprises a blowdown valve; the sewage discharge valve adopts an electric metal sealing ball valve; the automatic sewage disposal system is provided with a PLC (programmable logic controller), and a control circuit of the electric metal sealing ball valve is connected with the PLC.
A pressure transmitter is arranged on the vaporization flue in front of the electric metal sealing ball valve; the pressure transmitter is connected with the pressure gauge through a manual stop valve; and a signal circuit of the pressure gauge is connected with the PLC.
An electromagnetic flow meter is arranged on the vaporization flue behind the electric metal sealing ball valve; and a signal circuit of the electromagnetic flowmeter is connected with the PLC.
A water quality detecting instrument is arranged at the outlet of the electric metal sealing ball valve; and a signal circuit of the water quality detecting instrument is connected with the PLC.
The automatic sewage disposal system is provided with a human-computer interaction device, the human-computer interaction device is a device for information exchange of the PLC, and a touch screen is adopted for information input and output; an operator operates the PLC through a touch screen of the human-computer interaction device, and then controls the automatic sewage discharge system.
And a sewage outlet pipeline of the electric metal sealing ball valve is connected with a wastewater recovery device.
In order to achieve the same purpose as the technical scheme, the utility model also provides a control method of the automatic blowdown system of the vaporization flue, which adopts the technical scheme that the control method is selectively applied in the following three blowdown modes:
1. manually supplying power on a human-computer operation interface to enable the electric metal sealing ball valve to be electrified, and opening the electric metal sealing ball valve to discharge sewage;
2. calculating the pressure difference change of the flue pressure and the boiler system pressure by a CPU of the PLC through the pressure value detected by a pressure gauge on the vaporization flue before the electric metal sealing ball valve; if the pipeline is blocked due to poor water quality, the pressure difference between the flue pressure and the boiler system is increased, and when the detected pressure difference between the detected pressure and the boiler system pressure is greater than or equal to 0.2MPa, the electric metal sealing ball valve is electrified to discharge sewage;
3. according to the technical data statistical rule of the normal operation of the automatic sewage discharging system, under the condition of stable water quality, the interval time from the last sewage discharge to the next sewage discharge and the sewage discharge time of each time are set, so that the electric metal sealing ball valve discharges the sewage within the specified interval time, and the timed sewage discharge is realized.
By adopting the technical scheme, the utility model greatly reduces the labor intensity of the operators when discharging sewage, and ensures the personal safety of the operators; a man-machine friendly interface is adopted, so that water impurities in the vaporization flue are discharged at regular time or through pressure difference detection, the water quality of the equipment during operation is improved, and the safe operation of the equipment is facilitated; through the water quality detection of the sewage discharge outlet pipeline, the thorough sewage discharge is ensured, and the running water quality is ensured to reach the condition; the discharged sewage is introduced into a pipeline to be recycled, so that the waste of energy is reduced; the automatic blowdown system can be provided with interlocking and protecting functions, reduces equipment damage caused by human factors, greatly improves the blowdown efficiency of the vaporization system, saves capital and personnel investment, improves the automation level, and plays an active role in safe operation of the vaporization flue system.
Drawings
The contents of the drawings and the reference numbers in the drawings are briefly described as follows:
FIG. 1 is a schematic view of the structure of the blow-off pipe of the vaporization system of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a partially enlarged view of the structure at B in FIG. 1
FIG. 4 is a partially enlarged view of the structure at C in FIG. 1
Fig. 5 is a schematic structural diagram of the control system of the present invention.
Labeled as:
1. electric metal seal ball valve, 2, pressure transmitter, 3, manual stop valve, 4, manometer, 5, electromagnetic flowmeter, 6, water quality testing instrument, 7, vaporization flue, 8, blowdown manifold pipe.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a more complete, accurate and thorough understanding of the inventive concept and technical solutions of the present invention by those skilled in the art.
The structure of the utility model, as shown in figure 1, is an automatic blowdown system of a vaporization flue, which comprises a blowdown valve,
in order to solve the problems existing in the prior art and overcome the defects thereof, the invention aims at reducing the labor intensity of operators and improving the operation safety, and the utility model adopts the technical scheme that:
as shown in fig. 1 to 4, the automatic blowdown system of the vaporization flue of the present invention, wherein the blowdown valve adopts an electric metal sealing ball valve 1; the automatic blowdown system is provided with a PLC (programmable logic controller), and a control circuit of the electric metal sealing ball valve 1 is connected with the PLC.
According to the technical scheme of the utility model, the manual sewage valve is replaced by the electric metal sealing ball valve, the power-off is closed, the power-on is opened, the sealing performance of the vaporization flue is ensured, and the system pressure is ensured to be lossless when the vaporization system normally operates; and the PLC is in signal connection, so that automatic and accurate control is realized.
The key point of the utility model is that the labor intensity of the operation and pollution discharge of the personnel is greatly reduced, the personal safety of the operators is ensured, and the liberation of the labor force is facilitated; by improving the automation level of the vaporization system, the efficiency of pollution discharge is improved, the labor intensity of personnel is reduced, and the purposes of safety, reliability and stability are provided for the vaporization system.
Referring to fig. 1 to 4:
a pressure transmitter 2 is arranged on a vaporization flue 7 in front of the electric metal sealing ball valve 1; the pressure transmitter 2 is connected with a pressure gauge 4 through a manual stop valve 3; and a signal circuit of the pressure gauge 4 is connected with the PLC.
The utility model discloses install pressure transmitter 2 before the electronic blowoff valve of vaporization flue, monitoring boiler system pressure variation when the blowdown to and whether pressure is unusual during normal operating. Because the pressure-bearing capacity of the pressure gauge 4 is limited, the pressure transmitter 2 converts the pressure into the pressure which can be borne by the pressure gauge 4, and the manual stop valve 3 controls the passage of the pressure gauge 4 to be opened when a pressure signal is needed and closed when the pressure signal is not needed.
An electromagnetic flow meter 5 is arranged on a vaporization flue 7 behind the electric metal sealing ball valve 1; and a signal circuit of the electromagnetic flowmeter 5 is connected with the PLC.
The utility model discloses install electromagnetic flowmeter 5 behind electronic blowoff valve, flow when the control blowdown reduces the energy unnecessary extravagant.
A water quality detector 6 is arranged at the outlet of the electric metal sealing ball valve 1; and a signal circuit of the water quality detector 6 is connected with the PLC.
The utility model discloses at electronic blowoff valve export installation water quality testing system, through detecting exhaust water quality, both guarantee that the blowdown is thorough, guarantee that operation quality of water reaches the condition, can prevent not have the purpose again or unordered emission, and the energy that causes is extravagant.
The automatic sewage disposal system is provided with a human-computer interaction device, the human-computer interaction device is a device for information exchange of the PLC, and a touch screen is adopted for information input and output; an operator operates the PLC through a touch screen of the human-computer interaction device, and then controls the automatic sewage discharge system.
The utility model adopts a man-machine friendly interface to discharge water impurities in the vaporization flue at regular time or through pressure difference detection, thereby improving the water quality of the equipment during operation and being beneficial to the safe operation of the equipment;
and a sewage outlet pipeline of the electric metal sealing ball valve 1 is connected with a wastewater recovery device.
The utility model discloses introduce waste water recovery pipeline with exhaust sewage, get into recycle after handling, reduced the waste of the energy and resource.
To sum up, the utility model discloses an automatic sewage system increases liquid flow and detects, a plurality of pipeline, man-machine operation interface and automatically controlled part by electronic metal seal ball valve, pressure measurement device, flow detection device, pressure differential conversion device, timing device, sewage pipes and constitutes.
The specification model of the manual stop valve 3 in the drawing is 15V12 YZ; the specification model of the pressure transmitter 2 is 15X 12S/Y; the specification of the pressure gauge 4 is P1-2259.
The utility model discloses an automatic sewage system has set up interlock, protect function, has reduced the human factor equipment and has damaged, has improved vaporization system blowdown efficiency greatly. The method saves the capital and the personnel investment, improves the automation level and plays an active role in the safe operation of the vaporization system.
As shown in fig. 5, in order to achieve the same object of the present invention as the above technical solution, the present invention further provides a control method of the automatic blowdown system of the vaporization flue, wherein the control method is selectively applied in the following three blowdown modes:
(1) manually supplying power on a man-machine operation interface to enable the electric metal sealing ball valve 1 to be powered on, and opening the electric metal sealing ball valve 1 to discharge sewage;
(2) calculating the pressure difference change of the flue pressure and the boiler system pressure through a CPU (central processing unit) of the PLC controller according to the pressure value detected by a pressure gauge 4 on a vaporization flue 7 in front of the electric metal sealing ball valve 1; if the pipeline is blocked due to poor water quality, the pressure difference between the flue pressure and the boiler system is increased, and when the detected pressure difference between the pressure and the boiler system pressure is greater than or equal to 0.2MPa, the electric metal sealing ball valve 1 is electrified to discharge sewage;
(3) according to the technical data statistical rule of the normal operation of the automatic sewage discharging system, under the condition of stable water quality, the interval time from the last sewage discharge to the next sewage discharge and the sewage discharge time of each time are set, so that the electric metal sealing ball valve 1 discharges the sewage within the specified interval time, and the timed sewage discharge is realized.
In the modification, an electric ball valve, a pressure, a flow and a water quality detection signal which are arranged on a sewage discharge pipeline of the vaporization system are connected with the PLC, and an operator selects a control mode (timing, differential pressure and manual operation) through a man-machine interaction touch screen operation device; a timing mode is adopted: setting the last and next sewage discharge time and sewage discharge period; or adopting a differential pressure mode: the flue pressure and the pressure difference of the boiler system are 0.2MPa, and the sewage discharge time is automatically stopped according to the pressure difference reduction; or manual mode: the drain valve is operated by human-computer interaction and manual intervention.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without modification to the method and technical solution of the present invention, or the present invention can be directly applied to other occasions without modification, all within the scope of the present invention.
Claims (6)
1. The utility model provides an automatic blowdown system of vaporization flue, includes blowdown valve, its characterized in that: the sewage discharge valve adopts an electric metal sealing ball valve (1); the automatic sewage draining system is provided with a PLC (programmable logic controller), and a control circuit of the electric metal sealing ball valve (1) is connected with the PLC.
2. The automatic blowdown system of the vaporization flue of claim 1, wherein: a pressure transmitter (2) is arranged on a vaporization flue (7) in front of the electric metal sealing ball valve (1); the pressure transmitter (2) is connected with the pressure gauge (4) through a manual stop valve (3); and a signal circuit of the pressure gauge (4) is connected with the PLC.
3. The automatic blowdown system of the vaporization flue of claim 1, wherein: an electromagnetic flow meter (5) is arranged on a vaporization flue (7) behind the electric metal sealing ball valve (1); and a signal circuit of the electromagnetic flowmeter (5) is connected with the PLC.
4. The automatic blowdown system of the vaporization flue of claim 1, wherein: a water quality detecting instrument (6) is arranged at the outlet of the electric metal sealing ball valve (1); and a signal circuit of the water quality detecting instrument (6) is connected with the PLC.
5. The automatic blowdown system of the vaporization flue of claim 1, wherein: the automatic sewage disposal system is provided with a human-computer interaction device, the human-computer interaction device is a device for information exchange of the PLC, and a touch screen is adopted for information input and output; an operator operates the PLC through a touch screen of the human-computer interaction device, and then controls the automatic sewage discharge system.
6. The automatic blowdown system of the vaporization flue of claim 1, wherein: and a sewage outlet pipeline of the electric metal sealing ball valve (1) is connected with a wastewater recovery device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023218084.6U CN213983515U (en) | 2020-12-28 | 2020-12-28 | Automatic blowdown system of vaporization flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023218084.6U CN213983515U (en) | 2020-12-28 | 2020-12-28 | Automatic blowdown system of vaporization flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213983515U true CN213983515U (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023218084.6U Active CN213983515U (en) | 2020-12-28 | 2020-12-28 | Automatic blowdown system of vaporization flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213983515U (en) |
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2020
- 2020-12-28 CN CN202023218084.6U patent/CN213983515U/en active Active
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