CN207728915U - Natural circulation clack valve system - Google Patents
Natural circulation clack valve system Download PDFInfo
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- CN207728915U CN207728915U CN201721614897.2U CN201721614897U CN207728915U CN 207728915 U CN207728915 U CN 207728915U CN 201721614897 U CN201721614897 U CN 201721614897U CN 207728915 U CN207728915 U CN 207728915U
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- support arm
- natural circulation
- flap
- clack valve
- circulation clack
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Abstract
The utility model discloses a kind of Natural Circulation clack valve systems, the system includes Natural Circulation clack valve and water spout pipe, the Natural Circulation clack valve includes valve body, bearing, support arm, clump weight and flap, flap is located at the top of support arm, clump weight is placed in support arm bottom, and support arm is flexibly connected with bearing, and bearing is fixedly connected with the valve body, water spout pipe pushes flap to valve body for generating water column.The utility model provides a kind of simple in structure, installation and is easy, is easy to operate, and maintenance is convenient and meets the Natural Circulation clack valve system of the instantaneity of the reliability and unlatching closed.
Description
Technical field
The utility model is related to a kind of cycle clack valve system, more particularly to a kind of waterpower closes passive opening Natural Circulation
Clack valve system.
Background technology
Clack valve is recycled to be mounted on swimming-pool reactor core vessel, can be with the fluid of unicom container inside and outside, pool is anti-
It need to ensure airtight space when should pile up reaction, discharge residual heat of nuclear core be needed after shutdown, it is therefore desirable to which clack valve is set to reach this effect.
Existing clack valve technology is mostly by the external force such as electronic or to need the active devices such as operator's operation, not only takes time and effort people, also
Easily there is a situation where radiate not in time；Existing passive valve clack device is suitable for the small situation of the big external pressure of internal pressure,
Pool reactor is not suitable for it, and complicated, debugging is complicated.Under pool reactor normal operation, inside core vessel
Pressure is less than the working environment of fluid pressure in pond outside flap, and therefore, invention one is suitable for the normal work of pool reactor
It is simple in structure in the case of work, it is easy to operate, it can waterpower be closed, the Natural Circulation clack valve of passive opening is necessary.
Invention content
(1) goal of the invention
The utility model overcomes the deficiencies in the prior art, provides a kind of simple in structure, installation and is easy, is easy to operate,
Meet the Natural Circulation clack valve system of the instantaneity of the reliability and unlatching closed.
(2) technical solution
In order to solve the problems of prior art, the technical solution that this hair utility model provides is as follows：
A kind of Natural Circulation clack valve system, the Natural Circulation clack valve system include Natural Circulation clack valve and water spout pipe, are somebody's turn to do
Natural Circulation clack valve includes valve body, bearing, support arm, clump weight and movable flap component, which is characterized in that movable flap component
At the top of support arm, movable flap component is fixedly connected with support arm, and clump weight is placed in support arm bottom, support arm and bearing
Flexible connection, bearing are fixedly connected with the valve body, and water spout pipe pushes movable flap component to valve body for generating water column.
Further, the movable flap component includes cover board, flap and spring, and the cover board is connected with flap by spring
It connects.
Further, in the activity flap component, support arm is to be fixedly connected with flap, and support arm is that activity connects with cover board
It connects.
Further, in the movable flap component, support arm is to be fixedly connected with cover board, be provided on the flap one and
Support arm top coordinates mobilizable supporter.
Further, the water spout pipe is fixed on bearing or is fixed on the surrounding structure part of the Natural Circulation clack valve
On.
Further, the water spout pipe is the ozzle for the branch pipe that pump outlet tube pass goes out, which is used to hold to reactor core
Cooling water provides power inside device.
Further, position-adjustable of the clump weight in support arm bottom.
Further, the support arm is bow-shaped structural.
(3) advantageous effect
It is simple according to the Natural Circulation clack valve system structure of the utility model embodiment, installation is easy, easy to operate, overhauls
Instantaneity that is convenient and meeting the reliability and unlatching closed.
Description of the drawings
Fig. 1 is the schematic diagram for the open state for showing the Natural Circulation clack valve according to the utility model embodiment；
Fig. 2 is the schematic diagram for the closed state for showing the Natural Circulation clack valve according to the utility model embodiment.
Reference numerals list
1-valve body 2-valve seat, 3-flap, 4-spring, 5-cover board
6-water spray ozzle 7-support arm, 8-shaft, 9-clump weight, 10-bearings
Specific implementation mode
The utility model is further elaborated below in conjunction with specification drawings and specific embodiments.
A kind of Natural Circulation clack valve system includes Natural Circulation clack valve and water spout pipe 6, which includes valve
Body 1, bearing 10, support arm 7, clump weight 9 and movable flap component, movable flap component are located at 7 top of support arm, movable flap
Component is fixedly connected with support arm；Clump weight 9 is placed in 7 bottom of support arm, and support arm 7 is flexibly connected with bearing 10, bearing 10 with
Valve body 1 is fixedly connected, and water spout pipe 6 pushes flap 3 to valve body 1 for generating water column；Movable flap component include cover board 5,
One end of flap 3 and spring 4, the spring 4 is connected to the flap 3, and the other end of spring 4 is connected to the cover board 5；Water spray
Mouth pipe 6 can be fixed on the surrounding structure part that could be secured to Natural Circulation clack valve on bearing 10, and water spout pipe 6 is water pump
The ozzle for the branch pipe that export pipeline is drawn, the water pump are used to provide power to core vessel inside cooling water.In this embodiment,
Support arm 7 is integrated with flap 3 and the setting of clump weight 9, and simple in structure, installation is easy, maintenance is convenient and ensure that open and close
Instantaneity.
The structural schematic diagram of the passive opening of Natural Circulation clack valve is as shown in Figure 1, the knot that Natural Circulation clack valve waterpower is closed
Structure schematic diagram is as shown in Figure 2.The valve body 1 of the valve is welded on container casing, and valve seat 2 is welded on valve body 1, and support arm 7 is
It bow-shaped structural and is connect by shaft 8 with bearing 10, can be rotated at shaft 8；Clump weight 9 is located at 7 bottom of support arm, support
7 bottom of arm is formed with external screw thread, and the clump weight 9 is formed with internal thread hole, the external screw thread formed on 7 bottom of the support arm
The position of clump weight 9 can be adjusted as needed with the internal thread hole cooperation of the clump weight 9.
According to one embodiment, clump weight 9 is located at 7 bottom of support arm, and a fixed fastener is arranged in 7 bottom of support arm, can root
According to need adjust fixed fastener position to fixed weight block 9 position, make Natural Circulation clack valve in its natural state when, valve
The non-open state of door, when water spout pipe generates water column, Natural Circulation clack valve valve is closed.
According to above-described embodiment, the gravity of clump weight 9 is energy clockwise to the torque of 10 shaft of bearing, 8 center line
The enough gravity for overcoming the generations such as flap 3 in its natural state ensures that flap 3 is opened, and the position of clump weight 9 can be as needed
Adjustment changes the equalising torque relationship of rotatable parts by changing torque so that the switching motion of clack valve is correctly reliable.
Movable flap component is made of cover board 5, flap 3 and spring 4, is located at 7 top of support arm；The support arm 7 and valve
Valve 3 welds, and cover board 5 is equipped with the hole passed through for support arm 7, and the cylinder of number of springs, the valve are arranged on the cover board 5
The hollow cylinder of number of springs is set on valve 3, and cylinder matches with hollow cylinder, and 4 holding of spring is outside the cylinder of cover board 5 and valve
In the hollow cylinder of valve 3, there is the movable distance of spring between flap 3 and support arm 7, to realize the relatively living of cover board 5 and flap 3
It is dynamic.
According to one embodiment, the circular groove of number of springs is may be provided on the flap 3,4 holding of spring is in cover board 5
Cylinder is outer and the circular groove of flap 3 in.
According to above example, the spring position fixed structure on the cover board 5 and flap 3 can be replaced other can be real
Existing fixed spring position makes spring that can prolong the movable structure of spring extending direction elasticity.
According to above-described embodiment, an obstacle can be arranged in direction of the cover board nearby far from flap 3, to limit cover board 5
Scope of activities prevents spring 4 from falling off；
According to one embodiment, the spring 4 is fixedly connected with cover board 5, and 4 flap 3 of spring is fixedly connected.
According to above-described embodiment, support arm 7 is welded with flap 3, and cover board 5 passes through hole and the phase under the support of support arm 7
To 3 activity of flap, when water spout pipe 6, which generates water column, impacts cover board 5, the spring 4 between cover board 5 and the work of flap 3 can play
Cushioning effect, make flap 3 will not directly quickly impact valve body, the service life of Natural Circulation clack valve can be extended.
According to one embodiment, support arm 7 is welded with cover board 5, and flap is stretched on 7 top of support arm, and under field conditions (factors)
There is movable distance between flap 3；Coordinate mobilizable supporter with 7 top of support arm there are one settings on the flap 3,
Supporter is hollow cylinder in the present embodiment, and hollow cylinder internal diameter is more than support arm 7, and hollow cylinder one end is welded on flap 3
On, the length of hollow cylinder is less than the distance between flap 3 and cover board 5, with cover board 5 apart from flap under hollow cylinder natural conditions
Movable distance, 7 top of support arm are located in hollow cylinder.4 one end of the spring is flexibly connected with cover board 5 or fixed company
It connects, 4 other end of spring is to be flexibly connected or be fixedly connected with flap 3.In this embodiment, when water spout pipe 6 generates water column punching
When hitting cover board 5, because cover board 5 is fixed to one structure with support arm 7, Natural Circulation clack valve can be rotated with water column, work as valve
The lid of valve 3 closes, and since spring 4 is in the cushioning effect played, mitigates hammering when valve is closed to a certain extent
Effect extends the service life of Natural Circulation clack valve.
Water spray ozzle 6 can be fixed on bearing 10, can also be fixed on surrounding structure part, can be according to environment and needs
Setting；According to one embodiment, water spray ozzle 6 is fixed on the surrounding structure part of Natural Circulation clack valve, and water spray ozzle 6 is water pump
The ozzle for the branch pipe that export pipeline is drawn, which is the water pump for providing power to core vessel inside cooling water.At this
In embodiment, water spray ozzle 6 for providing the branch pipe that the pump outlet tube pass of power goes out to core vessel inside cooling water, thus
The water flow switch device of open and close water spray ozzle 6 need not be specially set, can be ensured to open with cooling water synchronous effect in heap
Reliability；Under the action of water pump, the pressure inside flap 3 is less than the pressure in 3 outside pond of flap, in pressure difference and water spray water
Under the action of column, it is ensured that flap 3 is effectively closed and sealing.
When reaction need to close valve in heap, the pressure inside reactor is less than the pressure in pond outside reactor, simultaneously
Water column is generated with cooling water water pump in water spout pipe 6, water column acts on cover board 5, to cover board 5 with enough motive forces to overcome
9 gravity of clump weight and can stages of labor thrust to push cover board 5, under the action of pressure difference and water spray water column so that flap 3 and valve seat 2
It is close to, to close valve；Spring 4 is worked as a buffer when valve is closed.
When needing discharge residual heat of nuclear core after reactor shutdown, since the gravity of clump weight 9 is to 10 shaft of bearing, 8 center line
Torque be the gravity that flap 3, spring 4 and cover board 5 can be overcome to generate in its natural state clockwise, clump weight 9
Position can adjust as needed, change the equalising torque relationship of rotatable parts by changing torque so that the keying of clack valve is dynamic
Make correct reliable, ensures that flap 3 is instant and passive unlatching.
The utility model has been supplied in primary Ioops drawing-in type pool reactor.
Although being shown and having illustrated according to some embodiments of the utility model general plotting, however, this field is common
It should be understood to the one skilled in the art that in the case of the principle of the general plotting without departing substantially from the utility model and spirit, it can be to these realities
It applies example to make a change, the scope of the utility model is limited with claim and their equivalent.
Claims (8)
1. a kind of Natural Circulation clack valve system, which includes Natural Circulation clack valve and water spout pipe (6), is somebody's turn to do
Natural Circulation clack valve includes that valve body (1), bearing (10), support arm (7), clump weight (9) and movable flap component, feature exist
In movable flap component is located at the top of support arm (7), and movable flap component is fixedly connected with support arm, and clump weight (9) is placed in branch
Brace (7) bottom, support arm (7) are flexibly connected with bearing (10), and bearing (10) is fixedly connected with valve body (1), water spout pipe (6)
For generating water column, push movable flap component to valve body (1).
2. Natural Circulation clack valve system according to claim 1, which is characterized in that the activity flap component includes cover board
(5), flap (3) and spring (4), the cover board (5) are connect with flap (3) by spring (4).
3. Natural Circulation clack valve system according to claim 2, which is characterized in that in the activity flap component, support
Arm (7) is to be fixedly connected with flap (3), and support arm (7) is to be flexibly connected with cover board (5).
4. Natural Circulation clack valve system according to claim 2, which is characterized in that in the activity flap component, support
Arm (7) is to be fixedly connected with cover board (5), and one is provided on the flap (3) and coordinates mobilizable supporter with support arm top.
5. Natural Circulation clack valve system according to claim 1, which is characterized in that the water spout pipe (6) is fixed on branch
On seat (10) or it is fixed on the surrounding structure part of the Natural Circulation clack valve.
6. Natural Circulation clack valve system according to claim 1, which is characterized in that the water spout pipe (6) pumps out for water
The ozzle for the branch pipe that mouth pipeline is drawn, the water pump are used to provide power to core vessel inside cooling water.
7. the Natural Circulation clack valve system according to any one of claim 1-6, which is characterized in that the clump weight (9)
Position-adjustable in support arm (7) bottom.
8. Natural Circulation clack valve system according to claim 7, which is characterized in that the support arm is bow-shaped structural.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721614897.2U CN207728915U (en) | 2017-11-28 | 2017-11-28 | Natural circulation clack valve system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721614897.2U CN207728915U (en) | 2017-11-28 | 2017-11-28 | Natural circulation clack valve system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207728915U true CN207728915U (en) | 2018-08-14 |
Family
ID=63088290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721614897.2U Active CN207728915U (en) | 2017-11-28 | 2017-11-28 | Natural circulation clack valve system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207728915U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781431A (en) * | 2017-11-28 | 2018-03-09 | 中国原子能科学研究院 | Natural Circulation clack valve system |
| CN109900470A (en) * | 2019-03-04 | 2019-06-18 | 浙富控股集团股份有限公司 | Natural Circulation flap test device and method |
-
2017
- 2017-11-28 CN CN201721614897.2U patent/CN207728915U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781431A (en) * | 2017-11-28 | 2018-03-09 | 中国原子能科学研究院 | Natural Circulation clack valve system |
| CN107781431B (en) * | 2017-11-28 | 2024-05-31 | 中国原子能科学研究院 | Natural circulation flap valve system |
| CN109900470A (en) * | 2019-03-04 | 2019-06-18 | 浙富控股集团股份有限公司 | Natural Circulation flap test device and method |
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