CN109341370B - Deep atomization deoxidizing device for condenser - Google Patents
Deep atomization deoxidizing device for condenser Download PDFInfo
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- CN109341370B CN109341370B CN201811570965.9A CN201811570965A CN109341370B CN 109341370 B CN109341370 B CN 109341370B CN 201811570965 A CN201811570965 A CN 201811570965A CN 109341370 B CN109341370 B CN 109341370B
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- steam
- water
- condenser
- peripheral
- pipeline system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/10—Auxiliary systems, arrangements, or devices for extracting, cooling, and removing non-condensable gases
Abstract
The invention discloses a deep atomization deaerating device of a condenser, which comprises a water supplementing atomization device, a steam thermal deaerating device, a peripheral water supplementing pipeline system, a peripheral steam pipeline system and a control system, wherein the water supplementing atomization device is connected with the steam thermal deaerating device; the inlet of the water supplementing atomizing device is connected with a peripheral water supplementing pipeline system; the outlet of the water supplementing atomization device is arranged at the upper part in the condenser; the inlet of the steam thermal deaerating device is connected with a peripheral steam pipeline system; the steam thermal deaerating device is arranged at the lower part in the condenser; the peripheral water supplementing pipeline system and the peripheral steam pipeline system are connected with the control system, and the control system controls the peripheral water supplementing pipeline system and the peripheral steam pipeline system to operate.
Description
Technical Field
The invention relates to the technical field of water supplementing and deoxidization of auxiliary condensers of power stations, in particular to a deep atomization deoxidization device of a condenser, which can effectively reduce the oxygen content of condensed water.
Background
The oxygen content of the condensed water is one of the main performance indexes of the condenser, the corrosion of steam-water system equipment seriously affects the operation safety of modern thermal power stations and nuclear power stations, and the high oxygen content of the condensed water is a main root of equipment corrosion.
In the prior art, a large amount of water supplementing of a heat supply unit causes the problem that the oxygen content of condensation water of a condenser is high. There is currently no effective method for solving this problem at home.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides the deep atomization deaerating device for the condenser, which can reduce the oxygen content of condenser condensate water after a great amount of water is supplemented to a heat supply unit, slow down the equipment corrosion of a condensate water system of a power station, improve the operation efficiency and safety of the power station and realize the energy conservation and consumption reduction of the unit.
In order to achieve the purpose, the deep atomization deaerating device of the condenser comprises a water supplementing atomization device, a steam thermal deaerating device, a peripheral water supplementing pipeline system, a peripheral steam pipeline system and a control system; the inlet of the water supplementing atomizing device is connected with a peripheral water supplementing pipeline system; the outlet of the water supplementing atomization device is arranged at the upper part in the condenser; the inlet of the steam thermal deaerating device is connected with a peripheral steam pipeline system; the steam thermal deaerating device is arranged at the lower part in the condenser; the peripheral water supplementing pipeline system and the peripheral steam pipeline system are connected with the control system, and the control system controls the peripheral water supplementing pipeline system and the peripheral steam pipeline system to operate.
The water supplementing atomizing device is used for atomizing water supplementing from the peripheral water supplementing pipeline system and spraying water mist into the condenser, and the water mist is fully contacted with steam turbine exhaust, so that the temperature of the water supplementing is increased to the saturation temperature under the pressure of the exhaust, and oxygen in the water supplementing is rapidly separated out.
The steam thermal deoxidizing device is used for sending steam from a peripheral steam pipeline system into the condenser, and the steam carries out thermal deoxidization on condensation water in the condenser to separate out oxygen and non-condensation gas.
The water supplementing atomizing device comprises a stainless steel pipe, an atomizing nozzle is arranged on the stainless steel pipe, and a supporting plate is arranged at the bottom of the stainless steel pipe.
The steam thermal deaerating device comprises a first water spraying disc and a second water spraying disc which are arranged in parallel up and down, and a baffle plate is arranged between the first water spraying disc and the second water spraying disc; a steam pipeline is arranged below the second water spraying disc; the first water spraying disc and the second water spraying disc are provided with condensation water holes, and the steam pipeline is provided with steam holes; the condensation water in the condenser flows from top to bottom in a water drop shape through the condensation water holes on the first water spraying disk and the second water spraying disk, heating steam is sprayed out from bottom to top through the steam holes on the steam pipeline, a convection mode is formed between the condensation water and the heating steam, and in the process, the heating steam carries out thermal deoxidization on the condensation water to separate out oxygen and non-condensation gas.
The peripheral water supplementing pipeline system comprises a stainless steel water supplementing pipe communicated with the water supplementing nut pipe, and an outlet of the stainless steel water supplementing pipe is communicated with the water supplementing atomization device; the stainless steel water supplementing pipe is provided with a thermometer, a flowmeter, a regulating valve and a pressure transmitter, wherein the front and the rear of the regulating valve are respectively connected with a front shutoff valve and a rear shutoff valve in series; a bypass valve is connected in parallel between the inlet of the front shutoff valve and the outlet of the rear shutoff valve.
The peripheral steam pipeline system comprises a steam pipeline communicated with the steam main pipe, and an outlet of the steam pipeline is communicated with the steam thermal deaeration device; the steam pipeline is provided with a steam flowmeter, a steam regulating valve, a steam thermometer and a differential pressure transmitter, and the front and the rear of the steam regulating valve are respectively connected with a front steam shut-off valve and a rear steam shut-off valve in series; a steam bypass valve is connected in parallel between the inlet of the front steam shut-off valve and the outlet of the rear steam shut-off valve.
The regulating valve is used for controlling water supplementing flow; the steam regulating valve controls the heating steam quantity according to the water supplementing quantity; the control signals of flow, pressure and temperature are connected into the DCS control room through the control cable.
The invention has the following advantages: compared with the prior art, the deep atomizing and deoxidizing device for the condenser can ensure that the oxygen content of the condensed water of the condenser is less than or equal to 20-30ppb under the condition that a great amount of water is supplemented to a heat supply unit, and provides technical support for the heat supply unit in the aspect of controlling the oxygen content of the condensed water.
Drawings
Fig. 1 is a schematic structural diagram of a deep atomization deaerating device for a condenser.
Fig. 2 is a schematic structural diagram of the water replenishing atomizing device.
Fig. 3 is a schematic structural diagram of the steam thermal deaeration device.
Fig. 4 is a schematic diagram of the peripheral water replenishment pipeline system.
Fig. 5 is a schematic diagram of the configuration of the peripheral steam piping system.
Fig. 6 is a schematic structural diagram of the control system.
Detailed Description
The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
As shown in fig. 1 to 6, the deep atomization deaerating device of the condenser comprises a water supplementing atomization device 1, a steam thermal deaerating device 2, a peripheral water supplementing pipeline system 3, a peripheral steam pipeline system 4 and a control system 5; the inlet of the water supplementing atomizing device is connected with a peripheral water supplementing pipeline system; the outlet of the water supplementing atomization device is arranged at the upper part in the condenser 10; the inlet of the steam thermal deaerating device is connected with a peripheral steam pipeline system; the lower part of the steam thermal deaerator is arranged in the condenser 10; the peripheral water supplementing pipeline system and the peripheral steam pipeline system are connected with the control system, and the control system controls the peripheral water supplementing pipeline system and the peripheral steam pipeline system to operate.
The water supplementing atomizing device is used for atomizing water supplementing from the peripheral water supplementing pipeline system and spraying water mist into the condenser, and the water mist is fully contacted with steam turbine exhaust, so that the temperature of the water supplementing is increased to the saturation temperature under the pressure of the exhaust, and oxygen in the water supplementing is rapidly separated out.
The steam thermal deoxidizing device is used for sending steam from a peripheral steam pipeline system into the condenser, and the steam carries out thermal deoxidization on condensation water in the condenser to separate out oxygen and non-condensation gas.
As shown in fig. 2, the water replenishing atomizer comprises a stainless steel pipe 11 provided with an atomizing nozzle 12, and a support plate 13 is mounted at the bottom of the stainless steel pipe. The water supplement from the peripheral water supplement pipeline system is sprayed out through the atomizing nozzle 12 to form mist, and then is fully contacted with the steam turbine exhaust steam in the condenser, so that the temperature of the water supplement is increased to the saturation temperature under the exhaust steam pressure, and oxygen in the water supplement is rapidly separated out.
As shown in fig. 3, the steam thermal deaerating device comprises a first water spraying disk 21 and a second water spraying disk 22 which are arranged in parallel up and down, wherein a baffle plate 23 is arranged between the first water spraying disk 21 and the second water spraying disk 22; a steam pipeline 24 is arranged below the second water spraying disc; the first water spraying disc 21 and the second water spraying disc 22 are provided with condensation water holes 25, and the steam pipeline is provided with steam holes 26; the condensed water in the condenser flows from top to bottom in a water drop shape through the condensed water holes on the first water spraying disk 21 and the second water spraying disk 22, heating steam is sprayed out from bottom to top through the steam holes on the steam pipeline, a convection mode is formed between the condensed water and the heating steam, and in the process, the heating steam carries out thermal deoxidization on the condensed water to separate out oxygen and non-condensed gas.
As shown in fig. 4, the peripheral water replenishing pipe system comprises a stainless steel water replenishing pipe 44 communicated with the water replenishing mother pipe 41, and an outlet of the stainless steel water replenishing pipe is communicated with the water replenishing atomization device; the stainless steel water supplementing pipe is provided with a thermometer 42, a flowmeter 43, a regulating valve 45 and a pressure transmitter 46, wherein a front shutoff valve 48 and a rear shutoff valve 47 are respectively connected in series with the front and the rear of the regulating valve 45; a bypass valve 49 is connected in parallel between the inlet of the front shut-off valve and the outlet of the rear shut-off valve.
As shown in fig. 5, the peripheral steam pipeline system comprises a steam pipeline 53 communicated with a steam main pipe 51, and an outlet of the steam pipeline is communicated with a steam thermal deaeration device; the steam pipeline is provided with a steam flowmeter 52, a steam regulating valve 54, a steam thermometer 55 and a differential pressure transmitter 56, and the front and rear of the steam regulating valve 54 are respectively connected with a front steam shutoff valve 57 and a rear steam shutoff valve 58 in series; a steam bypass valve 59 is connected in parallel between the inlet of the front steam shut-off valve and the outlet of the rear steam shut-off valve.
As shown in fig. 6, the regulating valve 45 is used for controlling the water supplementing flow; the steam regulating valve 54 controls the heating steam quantity according to the water supplementing quantity; the control signals of flow, pressure and temperature are connected into the DCS control room through the control cable.
While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (7)
1. The deep atomization deoxidizing device of the condenser is characterized by comprising a water supplementing atomization device, a steam thermal deoxidizing device, a peripheral water supplementing pipeline system, a peripheral steam pipeline system and a control system; the inlet of the water supplementing atomizing device is connected with a peripheral water supplementing pipeline system; the outlet of the water supplementing atomization device is arranged at the upper part in the condenser; the inlet of the steam thermal deaerating device is connected with a peripheral steam pipeline system; the steam thermal deaerating device is arranged at the lower part in the condenser; the peripheral water supplementing pipeline system and the peripheral steam pipeline system are connected with the control system, and the control system controls the peripheral water supplementing pipeline system and the peripheral steam pipeline system to operate;
the steam thermal deaerating device comprises a first water spraying disc and a second water spraying disc which are arranged in parallel up and down, and a baffle plate is arranged between the first water spraying disc and the second water spraying disc; a steam pipeline is arranged below the second water spraying disc; the first water spraying disc and the second water spraying disc are provided with condensation water holes, and the steam pipeline is provided with steam holes; the condensation water in the condenser flows from top to bottom in a water drop shape through the condensation water holes on the first water spraying disk and the second water spraying disk, heating steam is sprayed out from bottom to top through the steam holes on the steam pipeline, a convection mode is formed between the condensation water and the heating steam, and in the process, the heating steam carries out thermal deoxidization on the condensation water to separate out oxygen and non-condensation gas.
2. The deep atomizing and deoxygenating device for condenser of claim 1, wherein said water replenishing atomizer is used for atomizing water replenishing from peripheral water replenishing pipeline system and spraying water mist into condenser, and said water mist is fully contacted with steam turbine exhaust steam to raise the water replenishing temperature to saturation temperature under the exhaust steam pressure, so as to rapidly separate out oxygen in water replenishing.
3. The deep atomizing and deoxidizing device for condenser of claim 1, wherein the steam thermal deoxidizing device is used for feeding steam from the peripheral steam pipeline system into the condenser, and the steam thermally deoxidizes the condensed water in the condenser to separate out oxygen and non-condensed gas.
4. The deep atomizing and deoxygenating device for a condenser of claim 1, wherein said water replenishing and atomizing device comprises a stainless steel tube, an atomizing nozzle is arranged on said stainless steel tube, and a supporting plate is installed at the bottom of said stainless steel tube.
5. The deep atomizing and deoxygenating device for a condenser of claim 1 wherein said peripheral water replenishment pipeline system includes a stainless steel water replenishment pipe in communication with a water replenishment mother pipe, the outlet of said stainless steel water replenishment pipe being in communication with a water replenishment atomizing device; the stainless steel water supplementing pipe is provided with a thermometer, a flowmeter, a regulating valve and a pressure transmitter, wherein the front and the rear of the regulating valve are respectively connected with a front shutoff valve and a rear shutoff valve in series; a bypass valve is connected in parallel between the inlet of the front shutoff valve and the outlet of the rear shutoff valve.
6. The deep atomizing and deoxygenating device for a condenser of claim 5 wherein said peripheral steam conduit system includes a steam conduit in communication with a steam header and an outlet of said steam conduit is in communication with a steam thermal deoxygenating device; the steam pipeline is provided with a steam flowmeter, a steam regulating valve, a steam thermometer and a differential pressure transmitter, and the front and the rear of the steam regulating valve are respectively connected with a front steam shut-off valve and a rear steam shut-off valve in series; a steam bypass valve is connected in parallel between the inlet of the front steam shut-off valve and the outlet of the rear steam shut-off valve.
7. The deep atomizing and deoxygenating device for a condenser of claim 6 wherein said regulating valve is used to control make-up water flow; the steam regulating valve controls the heating steam quantity according to the water supplementing quantity; the control signals of flow, pressure and temperature are connected into the DCS control room through the control cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811570965.9A CN109341370B (en) | 2018-12-21 | 2018-12-21 | Deep atomization deoxidizing device for condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811570965.9A CN109341370B (en) | 2018-12-21 | 2018-12-21 | Deep atomization deoxidizing device for condenser |
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| Publication Number | Publication Date |
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| CN109341370A CN109341370A (en) | 2019-02-15 |
| CN109341370B true CN109341370B (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811570965.9A Active CN109341370B (en) | 2018-12-21 | 2018-12-21 | Deep atomization deoxidizing device for condenser |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0979509A (en) * | 1995-09-19 | 1997-03-28 | Hitachi Ltd | Supply water degassing apparatus |
| CN2674109Y (en) * | 2003-07-11 | 2005-01-26 | 东方汽轮机厂 | Apparatus for steam-taking and feeding water into steam condensing device and oxygen removing for steam turbine industry |
| CN102901370A (en) * | 2011-07-25 | 2013-01-30 | 北京全四维动力科技有限公司 | Steam turbine condenser water-supplementing and deoxidizing system |
| CN103758590A (en) * | 2014-01-24 | 2014-04-30 | 上海电气电站设备有限公司 | Novel low-pressure-cylinder steam-discharging-pipe deoxygenization structure of direct air-cooling unit |
| CN204225935U (en) * | 2014-10-28 | 2015-03-25 | 西安亨特电力科技有限公司 | The energy-conservation water replenishing device of a kind of thermal power generation unit exhaust casing |
-
2018
- 2018-12-21 CN CN201811570965.9A patent/CN109341370B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0979509A (en) * | 1995-09-19 | 1997-03-28 | Hitachi Ltd | Supply water degassing apparatus |
| CN2674109Y (en) * | 2003-07-11 | 2005-01-26 | 东方汽轮机厂 | Apparatus for steam-taking and feeding water into steam condensing device and oxygen removing for steam turbine industry |
| CN102901370A (en) * | 2011-07-25 | 2013-01-30 | 北京全四维动力科技有限公司 | Steam turbine condenser water-supplementing and deoxidizing system |
| CN103758590A (en) * | 2014-01-24 | 2014-04-30 | 上海电气电站设备有限公司 | Novel low-pressure-cylinder steam-discharging-pipe deoxygenization structure of direct air-cooling unit |
| CN204225935U (en) * | 2014-10-28 | 2015-03-25 | 西安亨特电力科技有限公司 | The energy-conservation water replenishing device of a kind of thermal power generation unit exhaust casing |
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| CN109341370A (en) | 2019-02-15 |
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