CN111120991A - Condensate water backflow alarming and interlocking protection device for industrial boiler - Google Patents
Condensate water backflow alarming and interlocking protection device for industrial boiler Download PDFInfo
- Publication number
- CN111120991A CN111120991A CN202010034276.7A CN202010034276A CN111120991A CN 111120991 A CN111120991 A CN 111120991A CN 202010034276 A CN202010034276 A CN 202010034276A CN 111120991 A CN111120991 A CN 111120991A
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- China
- Prior art keywords
- water
- directional valve
- boiler
- electromagnetic directional
- alarm
- 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.)
- Pending
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 238000010992 reflux Methods 0.000 abstract description 3
- 238000004880 explosion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
- F22B37/46—Applications, arrangements, or dispositions of alarm or automatic safety devices responsive to low or high water level, e.g. for checking, suppressing, extinguishing combustion in boilers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D11/00—Feed-water supply not provided for in other main groups
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
- F22D5/26—Automatic feed-control systems
- F22D5/34—Applications of valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Water Supply & Treatment (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The invention relates to a condensate water backflow alarm and interlocking protection device for an industrial boiler, belonging to the technical field of industrial boilers and comprising an electromagnetic directional valve and a normal-pressure water tank; the invention utilizes high water level alarm, overpressure alarm and low water level interlocking signal of boiler to control the direction of electromagnetic directional valve, change the flow direction of condensed water, realize the reflux alarm and interlocking function of condensed water, and recover redundant water and energy.
Description
Technical Field
The invention relates to the technical field of industrial boilers, in particular to a boiler safety protection device.
Background
The industrial boiler condensate water reflux device is a device for recovering steam condensate water and re-injecting the steam condensate water into a boiler barrel, avoids water and energy waste, and is worthy of vigorous popularization and application. Due to the requirements of the production process, the condensed water reflux device is often a closed circulation system with pressure and cannot be directly connected with a feed pump of a drum.
At present, an alarm and interlocking protection device of an industrial boiler achieves the purpose of protection by controlling a water feeding pump, a condensate water backflow device is not effectively controlled, and if high water level alarm, overpressure alarm and low water level interlocking conditions occur, condensate water continuously flows back to be injected into a boiler barrel, so that the water level of the boiler is too high, the pressure is too high, even explosion accidents caused by water feeding of a dry boiler are possibly caused, and the industrial boiler is very dangerous.
Disclosure of Invention
The invention aims to provide a device for controlling backflow of condensed water under pressure, which aims to solve the problems in the background technology.
In order to achieve the above object, the present invention provides the following technical solutions.
1. Under the normal operation condition of the boiler, the electromagnetic valve continuously introduces the pressurized condensate water into the boiler barrel to keep the closure of the system.
2. And converting the alarm and interlocking signals of the protection system into electromagnetic signals under the conditions of high water level alarm, overpressure alarm and low water level interlocking of the boiler.
3. The electromagnetic signal controls the electromagnetic directional valve to switch the original backflow direction of the condensed water, so that the condensed water is prevented from being continuously injected into the boiler barrel.
4. The electromagnetic signal controls the electromagnetic directional valve to switch the original backflow direction of the condensed water, and the condensed water is introduced into the normal-pressure water tank.
Compared with the prior art, the invention has the following advantages: under the condition of not influencing the steam production process, the condensate water of the industrial boiler can be continuously recovered, and when the boiler has the conditions of high water level alarm, overpressure alarm and low water level interlocking, a circuit for injecting the condensate water into the boiler barrel is cut off, so that the safe operation of the boiler is ensured.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The condensate water backflow alarm and interlocking protection device for the industrial boiler comprises an electromagnetic directional valve 1 and a normal-pressure water tank 2, wherein an inlet P of the electromagnetic directional valve 1 is connected with a pressurized condensate water backflow pipe, an outlet A of the electromagnetic directional valve 1 is connected with a boiler barrel, and an outlet B of the electromagnetic directional valve 1 is connected with the normal-pressure water tank 2, as shown in figure 1.
Under the normal operation condition of the boiler, the pressurized condensate water is pressurized by the booster pump, passes through the inlet P of the electromagnetic directional valve 1, is guided to the outlet A, and is directly injected into the boiler barrel.
Under the conditions of high water level alarm, overpressure alarm and low water level interlocking of the boiler, the alarm and interlocking signals of the protection system are converted into electromagnetic signals, the electromagnetic directional valve is controlled to guide, pressurized condensate water is guided to the outlet B from the inlet P of the electromagnetic directional valve 1, the condensate water is prevented from being continuously injected into the boiler barrel, and the boiler is prevented from causing the accidents of explosion caused by overhigh water level, overhigh pressure and even water addition in a dry boiler.
The electromagnetic directional valve 1 guides the pressurized condensate water from the inlet P to the outlet B, and the pressurized condensate water is injected into the normal-pressure water tank 2 to save energy and water for later use of a water pump.
Claims (3)
1. The utility model provides an industry boiler comdenstion water backward flow is reported to police and interlocking protection device, includes solenoid directional valve (1) and ordinary pressure water tank (2), its characterized in that: an inlet P of the electromagnetic directional valve (1) is connected with a pressurized condensate water return pipe, an outlet A of the electromagnetic directional valve (1) is connected with the boiler barrel, and an outlet B of the electromagnetic directional valve (1) is connected with the normal-pressure water tank (2).
2. Electromagnetic directional valve (1) according to claim 1, characterized in that: the high water level alarm, overpressure alarm and low water level interlocking signal of the boiler are converted into electromagnetic signals to control the direction of the electromagnetic directional valve, so that the change of the flowing direction of the condensed water backflow is realized.
3. The service water tank (2) according to claim 1, characterized in that: and recovering the redundant condensed water to be in a normal pressure state for later use by a water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010034276.7A CN111120991A (en) | 2020-01-14 | 2020-01-14 | Condensate water backflow alarming and interlocking protection device for industrial boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010034276.7A CN111120991A (en) | 2020-01-14 | 2020-01-14 | Condensate water backflow alarming and interlocking protection device for industrial boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111120991A true CN111120991A (en) | 2020-05-08 |
Family
ID=70490451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010034276.7A Pending CN111120991A (en) | 2020-01-14 | 2020-01-14 | Condensate water backflow alarming and interlocking protection device for industrial boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111120991A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1126280A (en) * | 1994-10-14 | 1996-07-10 | Tlv有限公司 | Pump and over-center snap link |
| CN203656900U (en) * | 2013-12-05 | 2014-06-18 | 北京奥科瑞丰节能技术有限公司 | Automatic energy-saving water feeding system for industrial steam boiler |
| CN105102195A (en) * | 2014-02-11 | 2015-11-25 | 刘凯 | Pump-type autoclave system and steam and pressure supply method thereof |
| CN106400902A (en) * | 2016-09-29 | 2017-02-15 | 上海电机学院 | Comprehensive water saving device |
| US20190154274A1 (en) * | 2016-02-24 | 2019-05-23 | "Energy Of Vacuum" Limited Liability Company | Vacuum steam heating system |
| CN212081204U (en) * | 2020-01-14 | 2020-12-04 | 广西壮族自治区特种设备检验研究院 | Condensate water backflow alarming and interlocking protection device for industrial boiler |
-
2020
- 2020-01-14 CN CN202010034276.7A patent/CN111120991A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1126280A (en) * | 1994-10-14 | 1996-07-10 | Tlv有限公司 | Pump and over-center snap link |
| CN203656900U (en) * | 2013-12-05 | 2014-06-18 | 北京奥科瑞丰节能技术有限公司 | Automatic energy-saving water feeding system for industrial steam boiler |
| CN105102195A (en) * | 2014-02-11 | 2015-11-25 | 刘凯 | Pump-type autoclave system and steam and pressure supply method thereof |
| US20190154274A1 (en) * | 2016-02-24 | 2019-05-23 | "Energy Of Vacuum" Limited Liability Company | Vacuum steam heating system |
| CN106400902A (en) * | 2016-09-29 | 2017-02-15 | 上海电机学院 | Comprehensive water saving device |
| CN212081204U (en) * | 2020-01-14 | 2020-12-04 | 广西壮族自治区特种设备检验研究院 | Condensate water backflow alarming and interlocking protection device for industrial boiler |
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