CN105371264A - Device for preventing boiler steam from flowing back - Google Patents
Device for preventing boiler steam from flowing back Download PDFInfo
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- CN105371264A CN105371264A CN201510827613.7A CN201510827613A CN105371264A CN 105371264 A CN105371264 A CN 105371264A CN 201510827613 A CN201510827613 A CN 201510827613A CN 105371264 A CN105371264 A CN 105371264A
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- steam
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Abstract
The invention discloses a device for preventing boiler steam from flowing back. The device comprises a steam pipe and a double check valve installed on a water feeding pipe. The double check valve comprises two check valve bodies installed in the water flowing direction. Each check valve body comprises a valve seat and a movable valve element located in the valve seat. A through pipe piece is arranged inside the steam pipe. A one-way flowmeter is arranged inside the through pipe piece. The steam inlet direction of the one-way flowmeter is opposite to the steam flowing direction. The one-way flowmeter is connected with an alarm device. Through the arrangement of the double check valve, the situation that safety accidents are caused by steam backflow on account of failure of the check valves of the water feeding pipe is avoided; meanwhile, the backflow water flow is monitored through the one-way flowmeter, and an alarm is given in time to inform workers.
Description
Technical field
The application belongs to boiler technology field, specifically, relates to a kind of device preventing Boiler Steam from flowing backwards.
Background technology
Boiler is a kind of energy conversion, and the energy to boiler input has chemical energy, electric energy in fuel, and boiler exports steam, high-temperature water or the organic heat carrier with certain heat energy.
The hot water produced in boiler or steam directly for industrial production and people's lives provide required heat energy, also can be converted to mechanical energy by Steam Power Equipment, or by generator, mechanical energy are converted to electric energy again.There is provided the boiler of hot water to be called hot-water boiler, be mainly used in life, also have a small amount of application in industrial production, wherein, the boiler producing steam is called steam boiler, but feed pipe easily flows backwards, and causes steam to flow backwards, thus has an accident.
Application content
The application overcomes shortcoming of the prior art, provides a kind of device preventing Boiler Steam from flowing backwards, and prevent steam from flowing backwards and cause the generation of accident, it is simple and reliable for structure.
In order to solve the problems of the technologies described above, the application is achieved through the following technical solutions:
A kind of device preventing Boiler Steam from flowing backwards, comprise steam pipe and be installed on the Double non-return valve on feed pipe, described Double non-return valve comprises two check-valves along water flow direction, described check-valves comprises valve seat and is positioned at the moving valve core of described valve seat, way pipe fitting is provided with in described steam pipe, be provided with way flow gauge in described way pipe fitting, the admission direction of described way flow gauge is contrary with vapor flow direction, and described way flow gauge connects warning device.
Further, described steam pipe is also provided with the first arm, and described first arm is provided with the first valve and air-introduced machine, and described first valve connection control device, described controller connects described way flow gauge.
Further, described controller also connects the switch of described feed pipe.
Further, be provided with the second arm in the opposite direction side of described steam pipe vapor flow, described second arm is towards vapor flow direction, and described second arm is provided with the second valve, and the end of described second arm is provided with air-blast device.
Further, described jet chimney is also enclosed with cryovial, and described cryovial connects described controller, and the position of the corresponding described cryovial of described feed pipe is provided with drainage tube, and described drainage tube is provided with the 3rd valve.
Compared with prior art, the beneficial effect of the application is:
A kind of device preventing Boiler Steam from flowing backwards described in the application, comprise steam pipe and be installed on the Double non-return valve on feed pipe, described Double non-return valve comprises two check-valves along water flow direction, described check-valves comprises valve seat and is positioned at the moving valve core of described valve seat, way pipe fitting is provided with in described steam pipe, way flow gauge is provided with in described way pipe fitting, the admission direction of described way flow gauge is contrary with vapor flow direction, described way flow gauge connects warning device, Double non-return valve is set, avoid the check-valves of feed pipe malfunctioning, steam is caused to flow backwards, security incident is caused to occur, the flow of the recirculation water of way flow gauge monitoring simultaneously, and alarm, notify staff.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present application, is used from explanation the application, does not form the restriction to the application with the embodiment one of the application, in the accompanying drawings:
Fig. 1 is the feed pipe structural representation of a kind of device preventing Boiler Steam from flowing backwards described in the application;
Fig. 2 is the steam tube structure schematic diagram of a kind of device preventing Boiler Steam from flowing backwards described in the application.
In figure, 1---steam pipe; 2---feed pipe;
3---Double non-return valve; 4---check-valves;
5---valve seat; 6---moving valve core;
7---way pipe fitting; 8---way flow gauge;
9---the first arm; 10---the first valve;
11---the second arm; 12---the second valve;
13---cryovial; 14---the 3rd valve;
15---drainage tube.
Detailed description of the invention
Be described below in conjunction with the preferred embodiment of accompanying drawing to the application, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the application, and be not used in restriction the application.
A kind of device preventing Boiler Steam from flowing backwards as shown in Figure 1, 2, the Double non-return valve 3 comprising steam pipe 1 and be installed on feed pipe 2, Double non-return valve 3 comprises two check-valves 4 along water flow direction, check-valves 4 comprises valve seat 5 and is positioned at the moving valve core 6 of valve seat 5, the design of Double non-return valve 3, prevent the malfunctioning of a check-valves 4, cause the generation of accident.
Be provided with way pipe fitting 7 in steam pipe 1, be provided with way flow gauge 8 in way pipe fitting 7, the admission direction of way flow gauge 8 is contrary with vapor flow direction, way flow gauge 8 connects warning device, way flow gauge 8 monitors the flow of refluence steam, when reaching specified value, namely reports to the police.
Steam pipe 1 is also provided with the first arm 9, first arm 9 is provided with the first valve 10 and air-introduced machine, first valve 10 connection control device, controller connects way flow gauge 8, and when adverse current occurs, the first valve 10 is opened, steam is extracted out by air-introduced machine, prevent boiler from having an accident, controller also connects the switch of feed pipe 2, is closed by feed pipe 2.
The second arm 11 is provided with in the opposite direction side of steam pipe 1 vapor flow, second arm 11 is towards vapor flow direction, second arm 11 is provided with the second valve 12, the end of the second arm 11 is provided with air-blast device, when occurring to flow backwards, open the second valve 12, steam blows back by air blast, and Accident prevention occurs.
Steam pipe 1 road is also enclosed with cryovial 13, cryovial 13 connection control device, and the position of the corresponding cryovial 13 of feed pipe 2 is provided with drainage tube 15, drainage tube 15 is provided with the 3rd valve 14, cryovial 13 pairs of steam pipe 1 roads lower the temperature, and reduce the pressure to filtering, steam water is flowed out by drainage tube 15.
Last it is noted that these are only the preferred embodiment of the application; be not limited to the application; although with reference to embodiment to present application has been detailed description; for a person skilled in the art; it still can be modified to the technical scheme described in foregoing embodiments; or equivalent replacement is carried out to wherein portion of techniques feature; but within all spirit in the application and principle; any amendment of doing, equivalent replacement, improvement etc., within the protection domain that all should be included in the application.
Claims (5)
1. the device preventing Boiler Steam from flowing backwards, it is characterized in that: comprise steam pipe and be installed on the Double non-return valve on feed pipe, described Double non-return valve comprises two check-valves along water flow direction, described check-valves comprises valve seat and is positioned at the moving valve core of described valve seat, way pipe fitting is provided with in described steam pipe, be provided with way flow gauge in described way pipe fitting, the admission direction of described way flow gauge is contrary with vapor flow direction, and described way flow gauge connects warning device.
2. a kind of device preventing Boiler Steam from flowing backwards according to claim 1, it is characterized in that: described steam pipe is also provided with the first arm, described first arm is provided with the first valve and air-introduced machine, and described first valve connection control device, described controller connects described way flow gauge.
3. a kind of device preventing Boiler Steam from flowing backwards according to claim 2, is characterized in that: described controller also connects the switch of described feed pipe.
4. a kind of device preventing Boiler Steam from flowing backwards according to claim 3, it is characterized in that: be provided with the second arm in the opposite direction side of described steam pipe vapor flow, described second arm is towards vapor flow direction, described second arm is provided with the second valve, and the end of described second arm is provided with air-blast device.
5. a kind of device preventing Boiler Steam from flowing backwards according to claim 4, it is characterized in that: described jet chimney is also enclosed with cryovial, described cryovial connects described controller, and the position of the corresponding described cryovial of described feed pipe is provided with drainage tube, and described drainage tube is provided with the 3rd valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510827613.7A CN105371264B (en) | 2015-11-24 | 2015-11-24 | A kind of device for preventing Boiler Steam from flowing backwards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510827613.7A CN105371264B (en) | 2015-11-24 | 2015-11-24 | A kind of device for preventing Boiler Steam from flowing backwards |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105371264A true CN105371264A (en) | 2016-03-02 |
| CN105371264B CN105371264B (en) | 2017-12-26 |
Family
ID=55373696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510827613.7A Expired - Fee Related CN105371264B (en) | 2015-11-24 | 2015-11-24 | A kind of device for preventing Boiler Steam from flowing backwards |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105371264B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255666A (en) * | 2019-06-20 | 2019-09-20 | 西安热工研究院有限公司 | A method of prevent high flow rate mixed bed ion exchange resin from flowing backward |
| CN110332341A (en) * | 2019-08-23 | 2019-10-15 | 德尔保定智能流体有限公司 | A kind of backflow preventer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004360820A (en) * | 2003-06-05 | 2004-12-24 | Miura Co Ltd | Valve |
| CN101798833A (en) * | 2009-02-05 | 2010-08-11 | 姜全德 | Three-in-one backflow preventer |
| CN102537922A (en) * | 2012-01-17 | 2012-07-04 | 中国石油天然气第八建设有限公司 | Module skid-mounting type steam generator with 5t/h and below special for oil field |
| CN102537923A (en) * | 2012-01-18 | 2012-07-04 | 中国石油天然气第八建设有限公司 | Light tube and container type special steam generator specially for oilfields |
| CN103278018A (en) * | 2013-06-05 | 2013-09-04 | 宝钢工程技术集团有限公司 | Flue gas system for continuous annealing unit |
| CN205279048U (en) * | 2015-11-24 | 2016-06-01 | 佛山高富中石油燃料沥青有限责任公司 | Device for preventing refluence of boiler steam |
-
2015
- 2015-11-24 CN CN201510827613.7A patent/CN105371264B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004360820A (en) * | 2003-06-05 | 2004-12-24 | Miura Co Ltd | Valve |
| CN101798833A (en) * | 2009-02-05 | 2010-08-11 | 姜全德 | Three-in-one backflow preventer |
| CN102537922A (en) * | 2012-01-17 | 2012-07-04 | 中国石油天然气第八建设有限公司 | Module skid-mounting type steam generator with 5t/h and below special for oil field |
| CN102537923A (en) * | 2012-01-18 | 2012-07-04 | 中国石油天然气第八建设有限公司 | Light tube and container type special steam generator specially for oilfields |
| CN103278018A (en) * | 2013-06-05 | 2013-09-04 | 宝钢工程技术集团有限公司 | Flue gas system for continuous annealing unit |
| CN205279048U (en) * | 2015-11-24 | 2016-06-01 | 佛山高富中石油燃料沥青有限责任公司 | Device for preventing refluence of boiler steam |
Non-Patent Citations (1)
| Title |
|---|
| 魏静荣等: "《脉动真空灭菌器内室气体流向监测报警装置的研究》", 《医疗设备信息》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255666A (en) * | 2019-06-20 | 2019-09-20 | 西安热工研究院有限公司 | A method of prevent high flow rate mixed bed ion exchange resin from flowing backward |
| CN110332341A (en) * | 2019-08-23 | 2019-10-15 | 德尔保定智能流体有限公司 | A kind of backflow preventer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105371264B (en) | 2017-12-26 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20171226 Termination date: 20191124 |