CN107314363B - Self-water-supplementing overflow water seal device of deaerator - Google Patents
Self-water-supplementing overflow water seal device of deaerator Download PDFInfo
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- CN107314363B CN107314363B CN201710568236.9A CN201710568236A CN107314363B CN 107314363 B CN107314363 B CN 107314363B CN 201710568236 A CN201710568236 A CN 201710568236A CN 107314363 B CN107314363 B CN 107314363B
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- deaerator
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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
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/50—Feed-water heaters, i.e. economisers or like preheaters incorporating thermal de-aeration of feed-water
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Abstract
The invention discloses a self-water-supplementing overflow water-sealing device of a deaerator, which comprises a U-shaped overflow water-discharging pipe, a water supplementing pipe and a water sealing groove, wherein the U-shaped overflow water-discharging pipe consists of a water inlet pipe section, a water outlet pipe section and a connecting pipe section communicated with the water inlet pipe section and the water outlet pipe section, the water inlet pipe section of the U-shaped overflow water-discharging pipe extends upwards into the deaerator, the water inlet pipe opening of the water inlet pipe section is positioned at the highest safe water level of the deaerator, the water outlet pipe section of the U-shaped overflow water-discharging pipe is connected with the water discharging pipe inserted into the water sealing groove, the top of the water sealing groove is opened, an overflow port is arranged on the side wall of the water sealing groove, the water inlet end of the water supplementing pipe extends into the deaerator, the water inlet pipe opening is lower than the normal working water level of the deaerator, and the water outlet end of the water supplementing pipe extends into the U-shaped overflow water-discharging pipe. The invention has the advantages that: (1) The water supplementing adjusting device and other external water sources are not needed to be equipped, so that the use cost of enterprises is reduced; (2) Simple structure, no need of manual operation, automatic water replenishing and water sealing reestablishment, and convenient use.
Description
Technical Field
The invention relates to a deaerator, in particular to a self-water-supplementing overflow water seal device of the deaerator.
Background
The deaerator is one of the indispensable devices in the boiler feed water regenerative system, and is mainly used for removing oxygen and other non-condensable gases in the boiler feed water so as to ensure the quality of the feed water. Deaerators are generally equipped with overflow means, which function as: (1) preventing external gases from entering the deaerator; (2) When the liquid level in the deaerator is higher than the highest safe water level, the redundant water can be discharged through the overflow device; (3) When the pressure in the deaerator exceeds the normal working pressure due to excessive steam in the deaerator, the excessive steam can be discharged through the overflow device, so that the deaerator is decompressed, and the deaerator is prevented from being dangerously damaged due to overpressure.
The overflow devices currently used are: the water-replenishing device comprises an overflow pipe, a water-sealing cylinder, a water source and a water-replenishing regulating device, wherein the water-sealing cylinder and the water source are arranged outside the deaerator, the water-replenishing regulating device can replenish water of the water source to the water-sealing cylinder, one end of the overflow pipe extends into the deaerator, the water inlet pipe orifice of the overflow pipe is positioned at the highest safe water level of the deaerator, and the other end of the overflow pipe is inserted into the water-sealing cylinder. The overflow device has the following defects: when the deaerator breaks the water seal of the water seal cylinder and the overpressure is discharged, the water seal cylinder is filled with water from an external water source through the manual operation water supplementing adjusting device, so that the water seal is formed in the water seal cylinder again, the structure is complex, the use cost of enterprises is high, the operation is complex, and the labor intensity of workers is high.
Disclosure of Invention
The invention aims to provide a deaerator self-water-supplementing overflow water seal device which can automatically reestablish a water seal after the deaerator is discharged in overpressure.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a deaerator from moisturizing overflow water seal device, includes U-shaped overflow drain pipe, moisturizing pipe and sets up in the outside water seal groove of deaerator, U-shaped overflow drain pipe comprises intake pipe section and play water pipe section, and the intercommunication intake pipe section and go out the connecting pipe section of water pipe section, the intake pipe section of U-shaped overflow drain pipe upwards stretches into deaerator inside to the intake pipe mouth of pipe of intake pipe section is located deaerator's the highest safe water level, the play water pipe section of U-shaped overflow drain pipe is linked together with the drain pipe of inserting the water seal groove, the open-top of water seal groove and be provided with the overflow mouth on the lateral wall of water seal groove, the intake end of moisturizing pipe stretches into deaerator inside to its intake pipe mouth is less than deaerator's normal work water level, the play water end of moisturizing pipe stretches into U-shaped overflow drain pipe.
Further, the foregoing deaerator is from moisturizing overflow water seal device, wherein: the water outlet end of the water supplementing pipe extends into the water outlet pipe section of the U-shaped overflow drain pipe.
Further, the foregoing deaerator is from moisturizing overflow water seal device, wherein: the water outlet port of the water outlet end of the water supplementing pipe is lower than the water level in the water inlet pipe section when the water seal is formed in the U-shaped overflow drain pipe.
Further, the foregoing deaerator is from moisturizing overflow water seal device, wherein: the overflow port of the water seal groove is positioned at the same level as the normal working water level of the deaerator.
Further, the foregoing deaerator is from moisturizing overflow water seal device, wherein: the water inlet end of the water supplementing pipe is arranged in a horn mouth shape with the caliber gradually increasing from bottom to top.
Through implementation of the technical scheme, the invention has the beneficial effects that: (1) The water supplementing adjusting device and other external water sources are not needed, so that the use cost of enterprises is greatly reduced; (2) The automatic water supplementing and re-establishing device has the advantages of simple structure, no need of manual operation, and more convenient use.
Drawings
Fig. 1 is a schematic structural diagram of a self-water-replenishing overflow water seal device of a deaerator.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
As shown in fig. 1, the self-water-replenishing overflow water seal device of the deaerator comprises a U-shaped overflow drain pipe, a water replenishing pipe 1 and a water seal tank 3 arranged outside the deaerator 2, wherein the U-shaped overflow drain pipe consists of a water inlet pipe section 4, a water outlet pipe section 41 and a connecting pipe section 42 for communicating the water inlet pipe section 4 with the water outlet pipe section 41, the water inlet pipe section 4 of the U-shaped overflow drain pipe extends upwards into the deaerator 2, the water inlet pipe orifice of the water inlet pipe section 4 is positioned at the highest safe water level a of the deaerator 2, the water outlet pipe section 41 of the U-shaped overflow drain pipe is communicated with a drain pipe 5 inserted into the water seal tank 3, the top opening of the water seal tank 3 is provided with an overflow port 6 on the side wall of the water seal tank 3, the water inlet end of the water replenishing pipe 1 extends into the deaerator 2, the water inlet pipe orifice of the water replenishing pipe is lower than the normal working water level b of the deaerator 2, and the water outlet end of the water replenishing pipe 1 extends into the U-shaped overflow drain pipe; in the embodiment, the water outlet end of the water supplementing pipe 1 extends into the water outlet pipe section 41 of the U-shaped overflow drain pipe, so that when the water seal of the U-shaped overflow drain pipe is broken due to overpressure in the oxygen device, the water seal can be quickly reformed in the U-shaped overflow drain pipe through the water supplementing pipe 1 extending into the water outlet pipe section 41 of the U-shaped overflow drain pipe; in the embodiment, the water outlet pipe orifice of the water outlet end of the water supplementing pipe 1 is lower than the liquid level c of water in the water inlet pipe section 4 when the water seal is formed in the U-shaped overflow drain pipe, so that when the water seal of the U-shaped overflow drain pipe is broken due to overpressure in the oxygen device, the water seal can be quickly reformed in the U-shaped overflow drain pipe through the water supplementing pipe 1 extending into the water outlet pipe section 41 of the U-shaped overflow drain pipe; in the embodiment, the overflow port of the water seal tank 3 is positioned at the same level as the normal working water level of the deaerator, so that the water seal effect of the water seal tank can be further improved; in this embodiment, the water inlet end of the water replenishing pipe 1 is in a bell mouth shape with a caliber gradually increasing from bottom to top, so that the water inlet area of the water replenishing pipe can be increased, and when the water seal of the U-shaped overflow drain pipe is broken by overpressure in the oxygen device, the water seal can be more quickly reformed in the U-shaped overflow drain pipe by the water replenishing pipe 1 extending into the water outlet pipe section 41 of the U-shaped overflow drain pipe;
the working principle of the invention is as follows:
when the liquid level in the deaerator 2 is higher than the highest safe water level, the redundant water enters a U-shaped overflow drain pipe, enters the water seal tank 3 through a drain pipe 5 and is discharged from an overflow port 6 of the water seal tank 3, so that overflow discharge is realized;
when the pressure in the deaerator exceeds the normal working pressure due to excessive steam in the deaerator, the excessive steam can firstly break the water seal in the U-shaped overflow drain pipe and enter the water seal tank 3, and then break the water seal of the water seal tank 3 and discharge the water seal tank into the atmosphere, so that the deaerator is depressurized; because the water inlet pipe orifice of the water supplementing pipe 1 is lower than the normal working water level b of the deaerator 2, water in the deaerator 2 can continuously flow into the U-shaped overflow drain pipe from the water supplementing pipe 1 at the moment, the water seal of the U-shaped overflow drain pipe is reestablished, and after the water seal in the U-shaped overflow drain pipe is reestablished, water in the U-shaped overflow drain pipe can continuously be supplemented into the water seal groove 3, and the water seal of the water seal groove 3 is reestablished.
The invention has the advantages that: (1) The water supplementing adjusting device and other external water sources are not needed, so that the use cost of enterprises is greatly reduced; (2) The automatic water supplementing and re-establishing device has the advantages of simple structure, no need of manual operation, and more convenient use.
Claims (6)
1. The utility model provides a deaerator is from moisturizing overflow water seal device which characterized in that: including U-shaped overflow drain pipe, moisturizing pipe and set up in the outside water seal groove of deaerator, U-shaped overflow drain pipe comprises intake pipe section and play water pipe section and intercommunication intake pipe section and play water pipe section's connecting tube section, and the intake pipe section of U-shaped overflow drain pipe upwards stretches into deaerator inside and the intake pipe mouth of pipe section is located deaerator's the highest safe water level, and the play water pipe section of U-shaped overflow drain pipe is linked together with the drain pipe of inserting the water seal groove, the open-top of water seal groove and be provided with the overflow mouth on the lateral wall of water seal groove, the intake end of moisturizing pipe stretches into deaerator inside and its intake pipe mouth is less than deaerator's normal work water level, the play water end of moisturizing pipe stretches into U-shaped overflow drain pipe.
2. The deaerator self-water-replenishing overflow water seal device according to claim 1, wherein: the water outlet end of the water supplementing pipe extends into the water outlet pipe section of the U-shaped overflow drain pipe.
3. The deaerator self-water-replenishing overflow water seal device according to claim 2, wherein: the water outlet pipe orifice of the water outlet end of the water supplementing pipe is lower than the water level in the water inlet pipe section when the water seal is formed in the U-shaped overflow drain pipe.
4. The self-water-replenishing overflow water seal device of a deaerator according to claim 1, 2 or 3, wherein: the overflow port of the water seal groove is positioned at the same level as the normal working water level of the deaerator.
5. The self-water-replenishing overflow water seal device of a deaerator according to claim 1, 2 or 3, wherein: the water inlet end of the water supplementing pipe is arranged in a horn mouth shape with the caliber gradually increasing from bottom to top.
6. The deaerator self-water-replenishing overflow water seal device according to claim 4, wherein: the water inlet end of the water supplementing pipe is arranged in a horn mouth shape with the caliber gradually increasing from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710568236.9A CN107314363B (en) | 2017-07-13 | 2017-07-13 | Self-water-supplementing overflow water seal device of deaerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710568236.9A CN107314363B (en) | 2017-07-13 | 2017-07-13 | Self-water-supplementing overflow water seal device of deaerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107314363A CN107314363A (en) | 2017-11-03 |
| CN107314363B true CN107314363B (en) | 2023-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710568236.9A Active CN107314363B (en) | 2017-07-13 | 2017-07-13 | Self-water-supplementing overflow water seal device of deaerator |
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| Country | Link |
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| CN (1) | CN107314363B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201326908Y (en) * | 2008-12-22 | 2009-10-14 | 周利平 | Drainer |
| CN202692022U (en) * | 2012-04-20 | 2013-01-23 | 青岛海斯壮铁塔有限公司 | Overflow water seal device for low-temperature deaerator |
| CN203474497U (en) * | 2013-09-25 | 2014-03-12 | 广东韶钢松山股份有限公司 | Three-level water-saving water seal for steam deaerator |
| CN204490544U (en) * | 2015-03-17 | 2015-07-22 | 云南驰宏锌锗股份有限公司 | The device that the water seal of a kind of fast quick-recovery deoxygenator normally runs |
| CN204718008U (en) * | 2015-05-11 | 2015-10-21 | 浙江商业职业技术学院 | Enclosed expansion tank |
| CN207316889U (en) * | 2017-07-13 | 2018-05-04 | 江苏永钢集团有限公司 | A kind of oxygen-eliminating device self-water replenishing overflow water seal arrangement |
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2017
- 2017-07-13 CN CN201710568236.9A patent/CN107314363B/en active Active
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| Publication number | Publication date |
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| CN107314363A (en) | 2017-11-03 |
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