CN215294574U - Generator hydrogen side sealing oil control system - Google Patents
Generator hydrogen side sealing oil control system Download PDFInfo
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- CN215294574U CN215294574U CN202121357395.2U CN202121357395U CN215294574U CN 215294574 U CN215294574 U CN 215294574U CN 202121357395 U CN202121357395 U CN 202121357395U CN 215294574 U CN215294574 U CN 215294574U
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Abstract
The utility model relates to the technical field of nuclear power station automatic regulation, in particular to a generator hydrogen side sealing oil control system, which comprises an oil storage unit, a main oil supplementing and discharging unit, a standby oil supplementing and discharging unit and an oil tank air return and exhaust unit; the oil storage unit comprises a sealed oil tank, and a magnetic turning plate liquid level meter, a liquid level transmitter, a liquid level high alarm switch, a liquid level low alarm switch and a ball valve are arranged on the sealed oil tank; the oil tank air return and exhaust unit comprises a ball valve and two corrugated pipe stop valves, the ball valve is connected with the sealed oil tank through a pipeline, the two corrugated pipe stop valves form a series structure, and the inlet end of the two corrugated pipe stop valves is connected with the inlet end of the ball valve through an exhaust pipe. Through this control system, can effectively solve when adjusting equipment trouble hydrogen side oil return difficulty and lead to generator oil feed problem.
Description
Technical Field
The utility model relates to a nuclear power station automatically regulated technical field especially relates to a generator hydrogen side seals oily control system.
Background
In a coal, gas and nuclear power generating set sealing oil system, the function of the hydrogen side sealing oil automatic regulating system is to maintain a constant liquid level of a hydrogen side sealing oil tank. This is the most basic requirement of a sealing oil system and must be ensured. At present, in a transported sealing oil system, hydrogen side oil return mostly adopts a single control mode of an oil supply and discharge floating ball valve, when the floating ball valve fails, no follow-up standby means is provided to ensure that a hydrogen side sealing oil tank maintains normal liquid level, the hydrogen side oil return is not smooth easily, and the hydrogen side oil return enters a generator along an oil return pipeline to cause an oil inlet accident of the generator.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a generator hydrogen side seals oily control system can effectively solve when the adjusting device trouble hydrogen side oil return difficulty and lead to generator oil feed problem.
The utility model discloses a realize through adopting following technical scheme:
the utility model provides a generator hydrogen side seal oil control system which characterized in that: the oil tank comprises an oil storage unit, a main oil supplementing and discharging unit, a standby oil supplementing and discharging unit and an oil tank air return and exhaust unit; the oil storage unit comprises a sealed oil tank, and a magnetic turning plate liquid level meter, a liquid level transmitter, a liquid level high alarm switch, a liquid level low alarm switch and a ball valve are arranged on the sealed oil tank; the main oil supply and discharge unit comprises an oil supply ball float valve and an oil discharge ball float valve; the oil-supplementing floating ball valve is arranged on an inner connector of the sealed oil tank through a flange and is connected with an oil-supplementing system through a pipeline; the oil discharge ball float valve is arranged on an inner port of the sealed oil tank through a flange and is connected with an oil return collection system through a pipeline.
The sealed oil tank is provided with 11 interfaces a-k, the interfaces a, d and e are connected with an oil return collecting system through pipelines, the interfaces b, c and f are connected with an oil supplementing system through pipelines, the interface g is connected with a hydrogen side oil pump of the sealed oil system, the interface h is connected with a sewage discharging system, the interface i is connected with a hydrogen side sealed tile oil return cavity of the generator, the interface j is connected with an inner cavity of the generator, and the interface k is a plugging flange interface.
The oil supplementing floating ball valve and the oil discharging floating ball valve are respectively provided with a butterfly valve on a pipeline outside the sealed oil tank.
The spare oil supplementing and discharging unit comprises an oil supplementing electromagnetic valve and an oil discharging electromagnetic valve, wherein the oil supplementing electromagnetic valve is connected with an outer side interface f of the sealed oil tank through one end of a pipeline, and the other end of the oil supplementing electromagnetic valve is connected with an oil supplementing system; the oil discharge electromagnetic valve is connected with an outer side interface e of the sealed oil tank through one end of a pipeline, and the other end of the oil discharge electromagnetic valve is connected with an oil return collection system; valve body frames of the oil supplementing electromagnetic valve and the oil discharging electromagnetic valve are respectively provided with a valve position switch, and inlet and outlet pipelines of the oil supplementing electromagnetic valve and the oil discharging electromagnetic valve are respectively provided with a ball valve.
The spare oil supplementing and discharging unit also comprises an oil supplementing throttle valve and an oil discharging throttle valve; the oil supplementing throttle valve is connected with an outer side interface c of the sealed oil tank through one end of a pipeline, and the other end of the oil supplementing throttle valve is connected with an oil supplementing system; the oil discharge throttle valve is connected with an outer side interface d of the sealed oil tank through a pipeline, and the other end of the oil discharge throttle valve is connected with an oil return collection system; ball valves are arranged on the inlet of the oil-supplementing throttling valve and the outlet pipeline of the oil-discharging throttling valve.
The oil tank air return and exhaust unit comprises a ball valve and two corrugated pipe stop valves, the ball valve is connected with the sealed oil tank through a pipeline, the two corrugated pipe stop valves form a series structure, and the inlet end of the two corrugated pipe stop valves is connected with the inlet end of the ball valve through an exhaust pipe.
And two corrugated pipe stop valves connected in series are also arranged on a connecting pipeline between the outer side interface h of the sealed oil tank and the sewage discharge system.
The interface k is a plugging flange interface, in particular to a plugging plate plug.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a generator hydrogen side sealing oil control system, simple structure, perfect function, can effectively automatic control generator hydrogen side sealing oil, specifically include main oil supply and discharge unit and reserve oil supply and discharge unit, main oil supply and discharge unit is used for carrying out automatic oil supply to the sealed oil tank when the sealed oil tank liquid level is low; carry out automatic oil extraction for sealed oil tank when sealed oil tank liquid level is high, reserve benefit oil extraction unit is used for continuing to maintain the automatic oil of mending when sealed oil tank liquid level is low through this reserve benefit oil extraction unit when main benefit oil extraction unit trouble, and automatic oil extraction function when the liquid level is high can effectively avoid leading to the emergence of generator oil feed accident because main benefit oil extraction unit can't normally adjust back oil volume, improves power station safe operation ability. And, the utility model discloses in, utilize magnetism to turn over board level gauge, liquid level changer, the high alarm switch of liquid level and the low alarm switch of liquid level to carry out continuous monitoring and fixed point warning to sealed oil tank liquid level to accessible alarm signal realizes that the system has higher practicality and commonality to the control of equipment, easy operation, easily realization, safe and reliable. The ball valve is convenient for the magnetic turning plate liquid level meter to be isolated and overhauled independently.
The utility model discloses in, inside oil supplementing ball-cock assembly and the oil extraction ball-cock assembly all were located sealed oil tank, can directly utilize liquid level control, did not need other devices and energy, the maintenance is simple and convenient, and the liquid level control degree of accuracy is high, does not receive the water pressure to influence, and is sealed more reliable.
2. The control system is characterized in that 11 interfaces a-k are arranged on the sealed oil tank, each device is independently connected with the sealed oil tank and can independently operate, and when a certain device breaks down, other devices connected with the device cannot normally work, so that the control system is more reliable.
3. The oil supplementing floating ball valve and the oil discharging floating ball valve are respectively provided with a butterfly valve on a pipeline outside the sealed oil tank, so that the oil supplementing floating ball valve can be switched on or switched off with the oil supplementing system and the oil discharging floating ball valve can be switched on or switched off with the oil returning collecting system, and the oil supplementing floating ball valve and the sealed oil tank can be maintained or cleaned conveniently.
4. The inlet and the outlet of the oil supplementing electromagnetic valve and the oil discharging electromagnetic valve are respectively provided with a ball valve, so that the sealing oil tank can be isolated from the oil supplementing system loop and the sealing oil tank and the return oil collecting system loop when the electromagnetic valves are in fault or the sealing oil tank is overhauled, and the oil supplementing and discharging electromagnetic valve and the sealing oil tank are convenient to overhaul or clean.
5. The system is provided with the isolating parts such as the butterfly valve, the ball valve, the bellows stop valve and the like, conditions are provided for overhauling and maintaining the system, when a certain position in the system needs to be replaced, overhauled or maintained, the corresponding isolating part can be closed, sealing oil is prevented from flowing out, and workers can be relieved and smooth related structures can implement the treatment work.
6. The outside interface h of sealed oil tank and sewage system's connecting tube on, still be equipped with two bellows stop valves of establishing ties, the setting that links to each other with sewage system provides convenience for carrying out centralized processing with the sealed oil of discharging in all sealed oil tanks, effectively prevents environmental pollution. 2 bellows stop valves below this interface can be opened when overhauing sealed oil tank, through this interface with the oil evacuation in the oil tank, when not needing the evacuation, two bellows stop valves of establishing ties still can maintain sealed oil tank and drainage isolated state when unable closure or interior hourglass appear in a valve.
Drawings
The invention will be described in further detail with reference to the following description taken in conjunction with the accompanying drawings and detailed description, in which:
fig. 1 is a schematic structural view of the present invention;
the labels in the figure are:
1. an oil storage unit; 1.1, sealing the oil tank; 1.2, a magnetic turning plate liquid level meter; 1.3, a liquid level transmitter; 1.4, a liquid level high alarm switch; 1.5, a liquid level low alarm switch; 2. a main oil supply and discharge unit; 2.1, an oil-supplementing ball float valve; 2.2, oil discharging ball float valve; 2.3, a butterfly valve; 3. a spare oil supplementing and discharging unit; 3.1, an oil supplementing electromagnetic valve; 3.2, an oil discharge electromagnetic valve; 3.3, an oil supplementing throttle valve; 3.4, an oil discharge throttle valve; 3.5, valve position switching; 4. a tank return and exhaust unit; 5. sealing an oil supply pipeline of the oil tank; 6. a ball valve; 7. sealing an oil return pipeline of the oil tank; 8. a manual oil filling flange; 9. bellows stop valve.
Detailed Description
Example 1
As the utility model discloses basic embodiment, the utility model discloses a generator hydrogen side seals oily control system, including oily storage unit 1, main oil unit 2, reserve oil unit 3 and the oil tank return-air of supplying oil and exhaust unit 4. The oil storage unit 1 is used for collecting and storing generator hydrogen side sealing oil, and the liquid level of the sealing oil tank 1.1 is adjusted to be always maintained within a certain range. The oil storage unit 1 comprises a sealed oil tank 1.1, a magnetic turning plate liquid level meter 1.2, a liquid level transmitter 1.3, a liquid level high alarm switch 1.4 and a liquid level low alarm switch 1.5 are arranged on the sealed oil tank 1.1, continuous monitoring and fixed-point alarm are carried out on the liquid level of the sealed oil tank 1.1, and the actions of a main oil supply and discharge unit 2 and a standby oil supply and discharge unit 3 can be controlled through alarm signals. The pressure pipe is still provided with ball valve 6 to magnetism turns over board level gauge 1.2, is convenient for keep apart the maintenance alone to magnetism turns over board level gauge 1.2.
The main oil supply and discharge unit 2 comprises an oil supply floating ball valve 2.1 and an oil discharge floating ball valve 2.2; the oil-supplementing floating ball valve 2.1 is arranged on an inner interface of the sealed oil tank 1.1 through a flange and is connected with an oil-supplementing system through a pipeline; the oil discharge ball float valve 2.2 is arranged on an inner port of the sealed oil tank 1.1 through a flange and is connected with an oil return collection system through a pipeline.
Example 2
As another preferred embodiment of the present invention, the present invention includes a basic embodiment, which includes an oil storage unit 1, a main oil supply and discharge unit 2, a spare oil supply and discharge unit 3, and an oil tank air return and exhaust unit 4. The oil storage unit 1 comprises a sealed oil tank 1.1, and a magnetic turning plate liquid level meter 1.2, a liquid level transmitter 1.3, a liquid level high alarm switch 1.4, a liquid level low alarm switch 1.5 and a ball valve 6 are arranged on the sealed oil tank 1.1.
The sealed oil tank 1.1 is connected with each device and pipeline through corresponding interfaces a-k on the tank body. The method specifically comprises the following steps: the sealed oil tank 1.1 interface a is connected with the oil discharge float valve 2.2 through a flange on the inner side of the oil tank, the interface a is connected with the butterfly valve 2.3 inlet through a pipeline and a flange on the outer side of the oil tank, and the outlet of the butterfly valve 2.3 is connected with an oil return collection system through a pipeline. The 1.1 interface b of the sealed oil tank is connected with the oil-supplementing float valve 2.1 through a flange on the inner side of the oil tank, the interface b is connected with the 2.3 inlet of the butterfly valve through a pipeline and a flange on the outer side of the oil tank, and the 2.3 outlet of the butterfly valve is connected with an oil-supplementing system through a pipeline. The 1.1 interface c of the sealed oil tank is connected with the 3.3 inlet of the oil-supplementing throttle valve through a pipeline and a flange outside the oil tank, the 3.3 outlet of the oil-supplementing throttle valve is connected with the 6 inlet of the ball valve through a pipeline, and the 6 outlet of the ball valve is connected with an oil-supplementing system through a pipeline. The 1.1 interface d of sealed oil tank passes through pipeline and flange and oil extraction choke valve 3.4 access connection in the oil tank outside, and oil extraction choke valve 3.4 export passes through pipeline and 6 access connection of ball valve, and 6 exports of ball valve pass through pipeline and return oil collection system connection. Sealed oil tank 1.1 interface e passes through the pipeline in 6 access connection of ball valve in the oil tank outside, 6 exports of ball valve pass through pipeline and 3.2 access connection of oil extraction solenoid valve, and 3.2 exports of oil extraction solenoid valve pass through pipeline and 6 access connection of ball valve, and 6 exports of ball valve pass through pipeline and return oil collection system connection. The 1.1 interface f of the sealed oil tank is connected with the 6 outlet of the ball valve through a pipeline outside the oil tank, the 6 inlet of the ball valve is connected with the 3.1 outlet of the oil supplementing electromagnetic valve through a pipeline, the 3.1 inlet of the oil supplementing electromagnetic valve is connected with the 6 outlet of the ball valve through a pipeline, and the 6 inlet of the ball valve is connected with an oil supplementing system through a pipeline. And the interface g of the sealed oil tank 1.1 is connected with a hydrogen side oil pump of a sealed oil system through a pipeline on the outer side of the oil tank. The 1.1 interface h of the sealed oil tank is connected with the 2 corrugated pipe stop valves 9 in series through pipelines at the outer side of the oil tank and then is connected to a sewage system. And the interface i of the sealed oil tank 1.1 is connected with the oil return cavity of the hydrogen side sealing tile of the generator through a pipeline on the outer side of the oil tank. The 1.1 interface j of the sealed oil tank is divided into two branches by a main pipe outside the oil tank, one branch is connected with the inlet of the ball valve 6, the outlet of the ball valve 6 is connected with the inner cavity of the generator, the other branch is connected with the inlet of the corrugated pipe stop valve 9 connected in series through a pipeline, and the outlet of the corrugated pipe stop valve 9 is connected with the emptying system through a pipeline. And a flange interface is arranged at the interface k of the sealed oil tank 1.1.
In general, the sealing oil returned from the oil return cavity of the hydrogen side sealing tile of the generator flows through the interface i of the sealing oil tank 1.1 through a pipeline to enter the sealing oil tank 1.1, and simultaneously, the hydrogen side oil pump sucks oil through the interface g of the sealing oil tank 1.1. When the oil return amount of the hydrogen side of the generator is larger than the oil suction amount of the hydrogen side oil pump, the oil level in the oil tank rises to exceed the designed oil discharge ball float valve 2.2, oil discharge is started, and when the oil return amount of the hydrogen side of the generator is smaller than the oil suction amount of the hydrogen side oil pump, the oil level in the oil tank drops to exceed the designed oil supplement ball float valve 2.1, oil supplement is started. The hydrogen side sealing oil quantity is ensured to be maintained within the design specified range during the running of the generator.
When one of the oil-supplementing ball float valve 2.1 and the oil-discharging ball float valve 2.2 has a fault or simultaneously has a fault, the action of the oil-supplementing electromagnetic valve 3.1 or the action of the oil-discharging electromagnetic valve 3.2 is controlled by the action of the liquid level high alarm switch 1.4 and the liquid level low alarm switch 1.5 arranged on the sealed oil tank 1.1 to replace the action of the oil-supplementing ball float valve 2.1 and the oil-discharging ball float valve 2.2 to realize the control of the liquid level in the sealed oil tank 1.1.
Further, oil supply solenoid valve 3.1 and oil extraction solenoid valve 3.2 all set up valve position switch 3.5, and valve position switch 3.5 reports to the police when oil supply and extraction solenoid valve 3.2 does not normally work and reminds on-the-spot operating personnel in time to inspect and take measures to handle. The field operator manually adjusts the oil-supplementing throttle valve 3.3 or the oil-discharging throttle valve 3.4 according to the display value of the liquid level transmitter 1.3 or the magnetic turning plate liquid level meter 1.2 to realize the control of the liquid level in the sealed oil tank 1.1.
This technical scheme structural design is ingenious, adopts high alarm switch 1.4 of liquid level, low alarm switch 1.5 of liquid level, mends oily solenoid valve 3.1, arranges oil solenoid valve 3.2 and realizes redundant configuration, still can carry out automatically regulated to generator hydrogen side seal oil when filling and arranging oil ball-cock assembly 2.2 trouble. The normal safe and reliable operation of the generator set is ensured.
Example 3
As the best mode of the present invention, referring to the attached drawing 1 of the specification, the present invention includes a generator hydrogen side sealing oil control system, which comprises an oil storage unit 1, a main oil supply and discharge unit 2, a standby oil supply and discharge unit 3, and an oil tank air return and exhaust unit 4.
The oil storage unit 1 comprises a sealed oil tank 1.1, and a magnetic turning plate liquid level meter 1.2, a liquid level transmitter 1.3, a liquid level high alarm switch 1.4, a liquid level low alarm switch 1.5 and a ball valve 6 are arranged on the sealed oil tank 1.1. The sealed oil tank 1.1 is connected with each device and pipeline through corresponding interfaces a-k on the tank body.
The main oil supply and discharge unit 2 comprises an oil supply ball float valve 2.1, an oil discharge ball float valve 2.2 and a butterfly valve 2.3. The oil supply and discharge ball float valve 2.2 is connected with the flange connectors a and b in the sealed oil tank 1.1 through flanges. The flange interfaces at one ends of the two butterfly valves 2.3 are respectively connected to the interfaces a and b at the outer side of the sealed oil tank 1.1 through pipelines, and the other ends of the two butterfly valves are respectively connected with an oil return collection system and an oil supplement system through pipelines.
The standby oil supplementing and discharging unit 3 comprises an oil supplementing electromagnetic valve 3.1, an oil discharging electromagnetic valve 3.2, an oil supplementing throttle valve 3.3, an oil discharging throttle valve 3.4, a valve position switch 3.5 and a ball valve 6. The outlet of the oil supplementing electromagnetic valve 3.1 is connected with the inlet of the ball valve 6 through a pipeline, and the outlet of the ball valve 6 is connected with the 1.1 interface f of the sealed oil tank through a pipeline. The inlet of the oil supplementing electromagnetic valve 3.1 is connected with the outlet of the ball valve 6 through a pipeline, and the inlet of the ball valve 6 is connected with an oil supplementing system through a pipeline. The inlet of the oil discharge electromagnetic valve 3.2 is connected with the outlet of the ball valve 6 through a pipeline, and the inlet of the ball valve 6 is connected with the 1.1 interface e of the sealed oil tank through a pipeline. The outlet of the oil discharge electromagnetic valve 3.2 is connected with the inlet of the ball valve 6 through a pipeline, and the outlet of the ball valve 6 is connected with an oil return collection system through a pipeline. The outlet of the oil-supplementing throttle valve 3.3 is connected with the 1.1 interface c of the sealed oil tank through a pipeline, the inlet of the oil-supplementing throttle valve 3.3 is connected with the outlet of the ball valve 6 through a pipeline, and the inlet of the ball valve 6 is connected with an oil-supplementing system through a pipeline. The inlet of the oil discharge throttling valve 3.4 is connected with the interface d of the sealed oil tank 1.1 through a pipeline, the outlet of the oil discharge throttling valve 3.4 is connected with the inlet of the ball valve 6 through a pipeline, and the outlet of the ball valve 6 is connected with an oil return collecting system through a pipeline.
The oil tank return air and exhaust unit 4 comprises a ball valve 6 and a bellows stop valve 9, the inlet end of the ball valve 6 is connected with a 1.1 interface j of the sealed oil tank through a pipeline, the outlet end of the ball valve 6 is connected with the inner cavity of the generator through a pipeline, 2 bellows stop valves 9 are connected in series through a pipeline, the inlet end of the first bellows stop valve 9 is connected with the 1.1 interface j of the sealed oil tank through a pipeline, and the outlet end of the second bellows stop valve 9 is connected with an oil tank emptying pipeline through a pipeline. In addition, 2 corrugated pipe stop valves 9 are connected in series through pipelines, the inlet end of the first corrugated pipe stop valve 9 is connected with a 1.1 connector h of the sealed oil tank through a pipeline, and the outlet end of the second corrugated pipe stop valve 9 is connected with a sewage discharge system through a pipeline. The interface g of the sealed oil tank 1.1 is connected with a main oil supply pipeline on the hydrogen side of the generator through a pipeline. And the interface k of the sealed oil tank 1.1 is a flange interface. And a port i of the sealed oil tank 1.1 is connected with an oil return cavity of a hydrogen side sealed tile of the generator through a pipeline.
The oil storage unit 1 is used for collecting and storing generator hydrogen side sealing oil, and the liquid level of the sealing oil tank 1.1 is adjusted to be always maintained within a certain range. Specifically, the interface i of the sealed oil tank 1.1 receives return oil from a hydrogen side sealing tile return oil cavity of the generator and stores the return oil in the oil tank. The 1.1 interface j of the sealed oil tank is divided into two paths through a pipeline, and one path is always communicated with the inner cavity of the generator to ensure smooth oil return; one path is communicated with an oil tank emptying pipeline and is used for emptying residual gas in the oil tank during maintenance. The 1.1 interface k of the sealed oil tank is a flange interface and is plugged by a plugging plate at ordinary times. If manual oil filling is needed, the blocking plate can be detached to fill oil into the oil tank. The 1.1 interface h of the sealed oil tank is connected with a sewage system through a pipeline, and 2 corrugated pipe stop valves 9 below the interface can be opened to drain the oil in the oil tank through the interface when the 1.1 of the sealed oil tank is overhauled. And a 1.1 interface g of the sealed oil tank is connected with a suction inlet of a hydrogen side oil pump of the sealed oil system to provide an oil source for the hydrogen side oil pump. And a port f of the sealed oil tank 1.1 is connected with a loop of the oil-supplementing electromagnetic valve 3.1 and used for supplementing oil from the oil-supplementing electromagnetic valve 3.1 into the oil tank. And a 1.1 interface e of the sealed oil tank is connected with a 3.2 loop of the oil discharge electromagnetic valve and used for discharging oil from the oil discharge electromagnetic valve 3.2 to the outside of the oil tank. And a port d of the sealed oil tank 1.1 is connected with a return circuit of an oil discharge throttle valve 3.4 and used for manually discharging oil to the outside of the oil tank. And a port c of the sealed oil tank 1.1 is connected with a loop of an oil supplementing throttle valve 3.3 and used for manually supplementing oil into the oil tank. The interface b of the sealed oil tank 1.1 is connected with the oil-supplementing ball float valve 2.1 in a loop mode and is used for supplementing oil from the oil-supplementing ball float valve 2.1 into the oil tank. The interface a of the sealed oil tank 1.1 is connected with the oil discharge float valve 2.2 in a loop mode and is used for discharging oil from the oil discharge float valve 2.2 to the outside of the oil tank. Furthermore, a magnetic turning plate liquid level meter 1.2, a liquid level transmitter 1.3 and a liquid level switch are arranged in the sealed oil tank 1.1 to continuously monitor the liquid level of the oil tank, give an alarm at a fixed point and control the action of an oil supply and discharge electromagnetic valve 3.2 through an alarm signal. The pressure guiding pipe of the liquid level meter is provided with a ball valve 6, so that the liquid level meter can be isolated and maintained independently.
The main oil supply and discharge unit 2 is used for automatically supplying oil to the oil tank when the liquid level of the sealed oil tank 1.1 is low; when the liquid level of the sealed oil tank 1.1 is high, the oil tank is automatically drained. Specifically, the oil-supplementing ball float valve 2.1 controls the conduction and the cut-off between the sealed oil tank 1.1 and an oil-supplementing system loop; and the oil discharge ball float valve 2.2 controls the conduction and the cut-off between the sealed oil tank 1.1 and the return oil collecting system loop. Further, butterfly valves 2.3 are arranged between the oil supplementing ball float valve 2.1 and the oil supplementing system and between the oil discharging ball float valve 2.2 and the oil return collecting system, so that the oil supplementing ball float valve 2.1 and the oil supplementing system and the oil discharging ball float valve 2.2 and the oil return collecting system can be switched on or switched off, and the oil supplementing ball float valve 2.1 and the sealed oil tank 1.1 can be conveniently overhauled or cleaned.
The standby oil supplementing and discharging unit 3 is used for continuously maintaining automatic oil supplementing when the liquid level of the sealed oil tank 1.1 is low and automatically discharging oil when the liquid level is high through the standby oil supplementing and discharging unit 3 when the main oil supplementing and discharging unit 2 fails. Specifically, an oil supplementing electromagnetic valve 3.1 controls the conduction and the cut-off between a sealed oil tank 1.1 and an oil supplementing system loop; and the oil discharge electromagnetic valve 3.2 controls the conduction and the cut-off between the sealed oil tank 1.1 and the return oil collecting system loop. Further, the inlet and the outlet of the oil supplementing electromagnetic valve 3.1 and the oil discharging electromagnetic valve 3.2 are provided with the ball valves 6, so that the sealed oil tank 1.1 and the oil supplementing system loop and the sealed oil tank 1.1 and the oil returning collecting system loop can be isolated when the electromagnetic valves are in fault or the sealed oil tank 1.1 is overhauled, and the oil supplementing and discharging electromagnetic valve 3.2 and the sealed oil tank 1.1 are convenient to overhaul or clean.
The oil tank air return and exhaust unit 4 is used for enabling the sealed oil tank 1.1 and the inner cavity of the generator to form a communicating vessel, so that the hydrogen side sealing oil of the generator can smoothly return to the sealed oil tank 1.1; when the sealed oil tank 1.1 is overhauled, the gas in the oil tank can be discharged. Specifically, the ball valve 6 controls the conduction and the cut-off of the sealed oil tank 1.1 and the inner cavity of the generator; the corrugated pipe stop valve 9 controls the connection and the disconnection of the sealed oil tank 1.1 and the emptying system; furthermore, two corrugated pipe stop valves 9 connected in series are arranged between the sealed oil tank 1.1 and the emptying system, and when one valve cannot be closed or leaks inwards, the sealed oil tank 1.1 and the emptying system can still be kept in an isolated state. To prevent gas leakage during normal operation of the system.
In conclusion, after the ordinary skilled in the art reads the document of the present invention, the technical solution and technical idea of the present invention do not need creative mental labor and make other various corresponding transformation schemes, which all belong to the protection scope of the present invention.
Claims (8)
1. The utility model provides a generator hydrogen side seal oil control system which characterized in that: the oil storage device comprises an oil storage unit (1), a main oil supplementing and discharging unit (2), a standby oil supplementing and discharging unit (3) and an oil tank air return and exhaust unit (4); the oil storage unit (1) comprises a sealed oil tank (1.1), and a magnetic turning plate liquid level meter (1.2), a liquid level transmitter (1.3), a liquid level high alarm switch (1.4), a liquid level low alarm switch (1.5) and a ball valve (6) are arranged on the sealed oil tank (1.1); the main oil supply and discharge unit (2) comprises an oil supply ball float valve (2.1) and an oil discharge ball float valve (2.2); the oil-supplementing floating ball valve (2.1) is arranged on an inner joint of the sealed oil tank (1.1) through a flange and is connected with an oil-supplementing system through a pipeline; the oil discharge ball float valve (2.2) is arranged on an inner port of the sealed oil tank (1.1) through a flange and is connected with an oil return collection system through a pipeline.
2. The generator hydrogen side seal oil control system according to claim 1, wherein: be equipped with a ~ k on sealed oil tank (1.1) and totally 11 interfaces, interface an, d, e pass through the pipeline and return oil collection system connection, and interface b, c, f pass through the pipeline and mend oily system connection, and interface g connects sealed oil system hydrogen side oil pump, and interface h connects drainage, and interface i connects generator hydrogen side seal tile and returns the oil chamber, and interface j connects the generator inner chamber, and interface k is the shutoff flange interface.
3. The generator hydrogen side seal oil control system according to claim 2, characterized in that: the oil-supplementing ball float valve (2.1) and the oil-discharging ball float valve (2.2) are respectively provided with a butterfly valve (2.3) on the pipeline outside the sealed oil tank (1.1).
4. The generator hydrogen side seal oil control system according to claim 3, wherein: the spare oil supplementing and discharging unit (3) comprises an oil supplementing electromagnetic valve (3.1) and an oil discharging electromagnetic valve (3.2), wherein the oil supplementing electromagnetic valve (3.1) is connected with an outer side interface f of the sealed oil tank (1.1) through one end of a pipeline, and the other end of the pipeline is connected with an oil supplementing system; the oil discharge electromagnetic valve (3.2) is connected with an outer side interface e of the sealed oil tank (1.1) through one end of a pipeline, and the other end of the pipeline is connected with an oil return collection system; the valve body frames of the oil supplementing electromagnetic valve (3.1) and the oil discharging electromagnetic valve (3.2) are respectively provided with a valve position switch (3.5), and inlet and outlet pipelines of the oil supplementing electromagnetic valve (3.1) and the oil discharging electromagnetic valve (3.2) are respectively provided with a ball valve (6).
5. The generator hydrogen side seal oil control system according to claim 4, wherein: the spare oil supplementing and discharging unit (3) further comprises an oil supplementing throttle valve (3.3) and an oil discharging throttle valve (3.4); the oil supplementing throttle valve (3.3) is connected with an outer side interface c of the sealed oil tank (1.1) through one end of a pipeline, and the other end of the pipeline is connected with an oil supplementing system; the oil discharge throttle valve (3.4) is connected with an outer side interface d of the sealed oil tank (1.1) through a pipeline, and the other end of the oil discharge throttle valve is connected with an oil return collection system; and ball valves (6) are also arranged on the inlet of the oil supplementing throttle valve (3.3) and the outlet pipeline of the oil discharging throttle valve (3.4).
6. The generator hydrogen side seal oil control system according to claim 2, characterized in that: the oil tank air return and exhaust unit (4) comprises a ball valve (6) and two corrugated pipe stop valves (9), the ball valve (6) is connected with the sealed oil tank (1.1) through a pipeline, the two corrugated pipe stop valves (9) form a serial structure, and the inlet end of the two corrugated pipe stop valves is connected with the inlet end of the ball valve (6) through an exhaust pipe.
7. The generator hydrogen side seal oil control system according to claim 2, characterized in that: and the outer side interface h of the sealed oil tank (1.1) and a connecting pipeline of a sewage discharge system are also provided with two corrugated pipe stop valves (9) which are connected in series.
8. The generator hydrogen side seal oil control system according to claim 2, characterized in that: the interface k is a plugging flange interface, in particular to a plugging plate plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121357395.2U CN215294574U (en) | 2021-06-18 | 2021-06-18 | Generator hydrogen side sealing oil control system |
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| CN202121357395.2U CN215294574U (en) | 2021-06-18 | 2021-06-18 | Generator hydrogen side sealing oil control system |
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