CN111489839A - Generator hydrogen discharging device - Google Patents
Generator hydrogen discharging device Download PDFInfo
- Publication number
- CN111489839A CN111489839A CN202010283444.6A CN202010283444A CN111489839A CN 111489839 A CN111489839 A CN 111489839A CN 202010283444 A CN202010283444 A CN 202010283444A CN 111489839 A CN111489839 A CN 111489839A
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- CN
- China
- Prior art keywords
- hydrogen
- cooler
- tank
- water
- control valve
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- 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.)
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/22—Structural association of coolant tubes with headers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/12—Cooling
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/02—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/24—Promoting flow of the coolant
- G21C15/253—Promoting flow of the coolant for gases, e.g. blowers
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/02—Devices or arrangements for monitoring coolant or moderator
- G21C17/028—Devices or arrangements for monitoring coolant or moderator for monitoring gaseous coolants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- High Energy & Nuclear Physics (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a generator hydrogen discharging device, which comprises: the blast pipe, the hydrogen detector, circulation tank, the hydrogen cooler, soda sample cooler, water supply installation, return water device and hydrogen buffer tank, the blast pipe is connected in circulation tank, the hydrogen detector is connected on the blast pipe, the hydrogen cooler is connected in circulation tank, and the hydrogen cooler still connects in soda sample cooler, hydrogen buffer tank one end is connected in the hydrogen cooler, the hydrogen buffer tank other end is connected in circulation tank, and the hydrogen buffer tank still connects in soda sample cooler, soda sample cooler one end is connected in water supply installation, the other end is connected in return water installation. The invention can thoroughly collect the hydrogen leaked into the closed cold water pipeline from the hydrogen cooler and lead the hydrogen out of the roof of the factory building, thereby reducing the risk of hydrogen explosion.
Description
Technical Field
The invention relates to the field of generators, in particular to a generator hydrogen exhaust device.
Background
From the end of the 30's of the 20 th century, generators with capacities greater than 50MW were gradually transitioned from air cooling to hydrogen cooling. The hydrogen has small density which is only 1/14 times of air, the heat conductivity coefficient is 7 times of air, and the heat release coefficient is 14-15 times of air under the same temperature and flow rate. So modern large-capacity turbonators almost all adopt hydrogen for cooling. The hydrogen cooling is divided into 2 types: hydrogen cooling and water hydrogen cooling.
The closed cooling water has the function of providing cooling water for auxiliary machines in the power station and adopts a closed circulation loop. The hydrogen penetration ability is strong, and welding seam or pipeline have slight crack or sand hole in the generator hydrogen cooler, then hydrogen can permeate closed cooling water piping in, along the other auxiliary engine of power plant of cooling water diffusion, when diffusing to the auxiliary engine of working under the high temperature condition, for example vapour water sampling cooler, probably arouse the hydrogen explosion, endanger system and equipment safety. The nuclear power unit has large capacity (1000 MW-1750 MW) and large hydrogen flow, so that the leaked and accumulated hydrogen amount is much larger, and the hydrogen explosion risk is obviously increased.
In the prior art, a DN25 emptying pipeline is connected to the high position of each cooling water pipeline (6-8) on the outlet of a hydrogen cooler body, and the hydrogen overflowing from the pipeline is led out of the roof of a factory building. The caliber of the pipeline in the prior art is too small, the hydrogen discharge capacity is weak, and the pipeline is not suitable for a large-capacity nuclear power unit.
Disclosure of Invention
The invention aims to provide a generator hydrogen exhaust device, which aims to solve the problems that the existing hydrogen exhaust device in the background art is too small in pipe diameter, weak in hydrogen exhaust capacity, not suitable for a high-capacity nuclear power unit and the like.
In order to solve the above problems, the present invention discloses a generator hydrogen discharge device, which includes: blast pipe, hydrogen detector, circulating water tank, hydrogen cooler, soda sample cooler, water supply installation, backwater device and hydrogen buffer tank, the blast pipe connect in circulating water tank, the hydrogen detector is connected on the blast pipe, the hydrogen cooler connect in circulating water tank, just the hydrogen cooler still connect in soda sample cooler, hydrogen buffer tank one end connect in the hydrogen cooler, the hydrogen buffer tank other end connect in circulating water tank, just the hydrogen buffer tank still connect in soda sample cooler, soda sample cooler with the hydrogen cooler sets up relatively, soda sample cooler one end connect in water supply installation, the other end connect in backwater device.
As a preferred scheme, the hydrogen buffer tank further comprises a tank body, a drain port, an air inlet, an inlet pipe, an outlet pipe and a manhole, wherein the drain port is arranged at the top of the tank body, the air inlet is uniformly arranged on the surface of the tank body, the inlet pipe and the outlet pipe are connected to the tank body, the inlet pipe is communicated with the outlet pipe, and the manhole is arranged on one side of the tank body.
Preferably, the number of the air inlets is eight, and the eight air inlets are uniformly arranged on the surface of the tank body; the hydrogen cooler still is connected with the connecting water pipe, the figure of connecting the water pipe is eight, eight connecting the water pipe with the air inlet corresponds the setting, and eight the air inlet communicates in eight connecting the water pipe.
As a preferred scheme, the bottom of the tank body is also connected with three support columns, and the three support columns are uniformly connected to the bottom of the tank body.
Preferably, a pump body and two electric control valves are further arranged between the hydrogen buffer tank and the circulating water tank, and the two electric control valves are respectively connected to two ends of the pump body.
Preferably, the system further comprises a manual control valve, and the manual control valve further comprises: the first manual control valve is arranged between the circulating water tank and the electric control valve, the second manual control valve is arranged between the pump body and the electric control valve, the third manual control valve is arranged between the hydrogen cooler and the electric control valve, the fourth manual control valve is arranged between the circulating water tank and the hydrogen buffer tank, the fifth manual control valve is arranged between the water return device and the steam-water sampling cooler, and the sixth manual control valve is arranged between the water inlet and the steam-water sampling cooler.
The invention discloses a generator hydrogen discharging device, which comprises: the blast pipe, the hydrogen detector, circulation tank, the hydrogen cooler, soda sample cooler, water supply installation, return water device and hydrogen buffer tank, the blast pipe is connected in circulation tank, the hydrogen detector is connected on the blast pipe, the hydrogen cooler is connected in circulation tank, and the hydrogen cooler still connects in soda sample cooler, hydrogen buffer tank one end is connected in the hydrogen cooler, the hydrogen buffer tank other end is connected in circulation tank, and the hydrogen buffer tank still connects in soda sample cooler, soda sample cooler one end is connected in water supply installation, the other end is connected in return water installation. The invention can thoroughly collect the hydrogen leaked into the closed cold water pipeline from the hydrogen cooler and lead the hydrogen out of the roof of the factory building, thereby reducing the risk of hydrogen explosion.
Drawings
FIG. 1 is a schematic structural diagram of a generator hydrogen discharge device according to the present invention;
fig. 2 is a schematic structural diagram of a generator hydrogen discharge device according to the present invention.
In the figure:
1. an exhaust pipe;
2. a hydrogen detector;
3. a circulating water tank;
4. a hydrogen cooler; 41. connecting a water pipe;
5. a steam-water sampling cooler;
6. a water supply device;
7. a water return device;
8. a hydrogen buffer tank; 81. a tank body; 82. emptying the air; 83. an air inlet; 84. a water inlet pipe; 85. a water outlet pipe; 86. a manhole; 87. a support pillar;
9. a pump body;
10. an electrically controlled valve;
11. a manual control valve; 111. a first manually controlled valve; 112. a second manual control valve; 113. a third manual control valve; 114. a fourth manual control valve; 115. a fifth manual control valve; 116. and a sixth manual control valve.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1-2, the present invention discloses a generator hydrogen discharge device, which comprises: blast pipe 1, hydrogen detector 2, circulation tank 3, hydrogen cooler 4, soda sample cooler 5, water supply installation 6, return water device 7 and hydrogen buffer tank 8, blast pipe 1 is connected in circulation tank 3, hydrogen detector 2 connects on blast pipe 1, hydrogen cooler 4 is connected in circulation tank 3, and hydrogen cooler 4 still connects in soda sample cooler 5, 8 one end of hydrogen buffer tank are connected in hydrogen cooler 4, the 8 other ends of hydrogen buffer tank are connected in circulation tank 3, and hydrogen buffer tank 8 still connects in soda sample cooler 5, soda sample cooler 5 sets up with hydrogen cooler 4 relatively, 5 one end of soda sample cooler is connected in water supply installation 6, the other end is connected in return water device 7. The invention can thoroughly collect the hydrogen leaked into the closed cold water pipeline from the hydrogen cooler and lead the hydrogen out of the roof of the factory building, thereby reducing the risk of hydrogen explosion.
It should be noted that the hydrogen detector 2 is arranged, the hydrogen detector 2 is arranged at the highest point of the device, and when hydrogen leakage is found, an alarm is given in time to report to an operator for processing as soon as possible, so that the safety is further improved.
Preferably, the hydrogen buffer tank 8 further includes a tank 81, a drain 82, an air inlet 83, a water inlet pipe 84, a water outlet pipe 85 and a manhole 86, the drain 82 is opened at the top of the tank 81, the air inlet 83 is uniformly opened on the surface of the tank, the water inlet pipe 84 and the water outlet pipe 85 are both connected to the tank 81, the water inlet pipe 84 is communicated with the water outlet pipe 85, and the manhole 86 is opened on one side of the tank 83.
It should be noted here that the water inlet and outlet mode of the hydrogen buffer tank 8 is from top to bottom, the drain port 83 is arranged at the top of the tank body 81, and the water is uniformly discharged out of the roof of the factory building through the drain port 83, so that the pipeline is short and the risk of hydrogen explosion is reduced, and meanwhile, the manhole 86 is arranged on the side surface of the tank body 81, so that the maintenance and inspection are convenient.
Preferably, the number of the air inlets 83 is eight, and the eight air inlets 83 are uniformly arranged on the surface of the tank body 81; the hydrogen cooler 4 is further connected with eight connecting water pipes 41, the number of the connecting water pipes 41 is eight, the eight connecting water pipes 41 are arranged corresponding to the air inlets 83, and the eight air inlets 83 are communicated with the eight connecting water pipes 41.
It is to be noted herein that the connecting water pipe 41 of the present invention is directly connected to the hydrogen cooler 4, simplifying the arrangement.
Preferably, the bottom of the tank 83 is further connected with three support columns 87, and the three support columns 87 are uniformly connected to the bottom of the tank 83.
Preferably, a pump body 9 and two electric control valves 10 are further arranged between the hydrogen buffer tank 8 and the circulating water tank, the number of the electric control valves 10 is two, and the two electric control valves 10 are respectively connected to two ends of the pump body 9.
It should be noted that the present invention simplifies the control process by providing the electrically controlled valve 10.
Preferably, the manual control valve 11 is further included, and the manual control valve 11 further includes: the first manual control valve 111 is arranged between the circulating water tank 3 and the electric control valve 10, the second manual control valve 112 is arranged between the pump body 9 and the electric control valve 10, the third manual control valve 113 is arranged between the hydrogen cooler 4 and the electric control valve 10, the fourth manual control valve is arranged between the circulating water tank 3 and the hydrogen buffer tank 8, the fifth manual control valve 115 is arranged between the water return device 7 and the steam-water sampling cooler 5, and the sixth manual control valve 116 is arranged between the water inlet and the steam-water sampling cooler 5.
It should be noted here that the present invention ensures the safety of the operation by providing a plurality of manual control valves 11.
The working process of the invention is as follows: closed cooling water flows into a hydrogen cooler 4 from a circulating water tank 3, or flows into the hydrogen cooler 4 through a water supply device 6, meanwhile, water of the water supply device 6 flows into a steam-water sampling cooler 5 and flows into a water return device 7 after sampling detection is completed, water in the hydrogen cooler 4 flows into a hydrogen buffer tank 8 through a water inlet pipe 84 and then flows out of a water outlet pipe 85 to the water return device 7, water return and water supply processes are carried out, meanwhile, hydrogen in the hydrogen cooler 4 enters the hydrogen buffer tank 8 through a connecting water pipe 41, and hydrogen in the hydrogen buffer tank 8 is discharged through a vent 82.
In summary, the present invention discloses a generator hydrogen discharge device, which comprises: the blast pipe, the hydrogen detector, circulation tank, the hydrogen cooler, soda sample cooler, water supply installation, return water device and hydrogen buffer tank, the blast pipe is connected in circulation tank, the hydrogen detector is connected on the blast pipe, the hydrogen cooler is connected in circulation tank, and the hydrogen cooler still connects in soda sample cooler, hydrogen buffer tank one end is connected in the hydrogen cooler, the hydrogen buffer tank other end is connected in circulation tank, and the hydrogen buffer tank still connects in soda sample cooler, soda sample cooler one end is connected in water supply installation, the other end is connected in return water installation. The invention can thoroughly collect the hydrogen leaked into the closed cold water pipeline from the hydrogen cooler and lead the hydrogen out of the roof of the factory building, thereby reducing the risk of hydrogen explosion.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A generator hydrogen discharge apparatus, comprising: blast pipe, hydrogen detector, circulating water tank, hydrogen cooler, soda sample cooler, water supply installation, backwater device and hydrogen buffer tank, the blast pipe connect in circulating water tank, the hydrogen detector is connected on the blast pipe, the hydrogen cooler connect in circulating water tank, just the hydrogen cooler still connect in soda sample cooler, hydrogen buffer tank one end connect in the hydrogen cooler, the hydrogen buffer tank other end connect in circulating water tank, just the hydrogen buffer tank still connect in soda sample cooler, soda sample cooler with the hydrogen cooler sets up relatively, soda sample cooler one end connect in water supply installation, the other end connect in backwater device.
2. The generator hydrogen discharge device according to claim 1, wherein the hydrogen buffer tank further comprises a tank body, a drain opening, an air inlet, an inlet pipe, an outlet pipe and a manhole, the drain opening is arranged at the top of the tank body, the air inlet is uniformly arranged on the surface of the tank body, the inlet pipe and the outlet pipe are both connected to the tank body, the inlet pipe is communicated with the outlet pipe, and the manhole is arranged on one side of the tank body.
3. The generator hydrogen discharge device according to claim 2, wherein the number of the air inlets is eight, and the eight air inlets are uniformly arranged on the surface of the tank body; the hydrogen cooler still is connected with the connecting water pipe, the figure of connecting the water pipe is eight, eight connecting the water pipe with the air inlet corresponds the setting, and eight the air inlet communicates in eight connecting the water pipe.
4. The generator hydrogen discharge device according to claim 2, wherein the bottom of the tank body is further connected with three support columns, and the three support columns are uniformly connected to the bottom of the tank body.
5. The generator hydrogen discharge device according to claim 1, wherein a pump body and two electric control valves are further arranged between the hydrogen buffer tank and the circulating water tank, and the two electric control valves are respectively connected to two ends of the pump body.
6. The generator hydrogen discharge apparatus of claim 1, further comprising a manual control valve, the manual control valve further comprising: the first manual control valve is arranged between the circulating water tank and the electric control valve, the second manual control valve is arranged between the pump body and the electric control valve, the third manual control valve is arranged between the hydrogen cooler and the electric control valve, the fourth manual control valve is arranged between the circulating water tank and the hydrogen buffer tank, the fifth manual control valve is arranged between the water return device and the steam-water sampling cooler, and the sixth manual control valve is arranged between the water inlet and the steam-water sampling cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010283444.6A CN111489839A (en) | 2020-04-13 | 2020-04-13 | Generator hydrogen discharging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010283444.6A CN111489839A (en) | 2020-04-13 | 2020-04-13 | Generator hydrogen discharging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111489839A true CN111489839A (en) | 2020-08-04 |
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ID=71811767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010283444.6A Pending CN111489839A (en) | 2020-04-13 | 2020-04-13 | Generator hydrogen discharging device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111489839A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051007A (en) * | 2020-08-12 | 2020-12-08 | 浙江浙能台州第二发电有限责任公司 | Air inlet detection device and method for closed cooling water system of power plant |
-
2020
- 2020-04-13 CN CN202010283444.6A patent/CN111489839A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051007A (en) * | 2020-08-12 | 2020-12-08 | 浙江浙能台州第二发电有限责任公司 | Air inlet detection device and method for closed cooling water system of power plant |
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