An extraction and exhaust check valve actuator for an ultra-supercritical secondary reheat unit

Abstract

The present invention discloses an extraction and exhaust check valve actuator for an ultra-supercritical secondary reheat unit, comprising a valve body, an air inlet, an air outlet, a sealing ring and a rack, wherein the valve body is provided with an air inlet, a first connecting rod is provided inside the valve body, and a second connecting rod is provided outside the first connecting rod, a central shaft is connected to the second connecting rod, a gear is provided on the central shaft, and a rack is connected to the outside of the moving rod. The extraction and exhaust check valve actuator for an ultra-supercritical secondary reheat unit is provided with a sealing gasket, and when the sealing gasket rotates, the gear is driven to rotate through the central shaft, thereby driving the moving rod to move through the gear and the rack, so that the moving rod is pressed against the spring, and then when the extraction is completed, the moving rod will move to the right under the action of the spring, the first magnet and the second magnet, so that the device completes the return closure, making it safer and more convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of check valves, and in particular to an extraction and exhaust check valve actuator for an ultra-supercritical secondary reheat unit. Background Art

[0002] A check valve is a valve that automatically opens and closes the valve disc depending on the flow of the medium itself to prevent the medium from flowing back. It is also called a non-return valve, a one-way valve, a reverse flow valve, and a back pressure valve. A check valve is an automatic valve. Its main function is to prevent the medium from flowing back, to prevent the pump and the drive motor from reversing, and to prevent the medium from being released from the container. A check valve can also be used on a pipeline that provides supply to an auxiliary system where the pressure may rise to a level that exceeds the system pressure. Check valves can be mainly divided into swing check valves and lift check valves.

[0003] However, the existing check valve actuator has the following shortcomings in use, such as;

[0004] The return-closing speed is slow. When the existing check valve actuator is closed, its return-closing speed is slow, which leads to potential safety hazards and is inconvenient to use.

[0005] Therefore, we propose an extraction and exhaust check valve actuator for an ultra-supercritical secondary reheat unit in order to solve the above-mentioned problems. Summary of the invention

[0006] The object of the present invention is to provide an extraction and exhaust check valve actuator for an ultra-supercritical secondary reheat unit to solve the problem of slow return speed proposed in the above-mentioned background technology. When the existing check valve actuator is closed, its return speed is slow, resulting in safety hazards and inconvenience in use.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an ultra-supercritical secondary reheat unit extraction and exhaust check valve actuator, comprising a valve body, an air inlet, an air outlet, a sealing ring and a rack, wherein the valve body is provided with an air inlet, the valve body is provided with an air outlet, a sealing ring is provided inside the valve body, a sealing gasket is provided inside the valve body, a spring is provided inside the valve body, a moving rod is connected inside the valve body, and a first magnet is connected to the outside of the moving rod, a second magnet is installed inside the valve body, a first connecting rod is provided inside the valve body, and a second connecting rod is provided outside the first connecting rod, a central axis is connected to the second connecting rod, and A connecting block is connected to the outside of the central shaft, a gear is arranged on the central shaft, a rack is connected to the outside of the moving rod, the moving rod is connected to the valve body in a movable manner, and the moving rod constitutes a moving structure inside the valve body, and the moving rod is connected to the first magnet in a fixed manner, the first connecting rod is connected to the valve body in a fixed manner, and the first connecting rod is connected to the second connecting rod in a fixed manner, and the second connecting rod is directly above the sealing gasket, the second connecting rod is connected to the central shaft in a movable manner, and the central shaft is connected to the connecting block in a fixed manner, and there are two connecting blocks, and the connecting block is connected to the sealing gasket in a fixed manner.

[0008] Preferably, the gear is connected to the central shaft in a fixed manner, and the central shaft forms a rotating structure inside the valve body through the gear.

[0009] Preferably, the rack is connected to the movable rod in a fixed manner, and the rack forms a movable structure inside the valve body.

[0010] Compared with the prior art, the beneficial effects of the present invention are: the extraction and exhaust check valve actuator of the ultra-supercritical secondary reheat unit;

[0011] A sealing gasket is provided. When the sealing gasket rotates, the gear is driven to rotate through the central shaft, thereby driving the moving rod to move through the gear and the rack, so that it squeezes the spring. After that, when the air is pumped out, the moving rod will move to the right under the action of the spring, the first magnet and the second magnet, so that the device completes the return closure, making it safer and more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0013] Figure 2 It is a side view structural schematic diagram of the present invention;

[0014] Figure 3 For the present invention Figure 1Schematic diagram of the structure at point A in the middle.

[0015] In the figure: 1. valve body; 2. air inlet; 3. air outlet; 4. sealing ring; 5. sealing gasket; 6. spring; 7. moving rod; 8. first magnet; 9. second magnet; 10. first connecting rod; 11. second connecting rod; 12. central axis; 13. connecting block; 14. gear; 15. rack. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-3The present invention provides a technical solution: an extraction and exhaust check valve actuator for an ultra-supercritical secondary reheat unit, comprising a valve body 1, an air inlet 2, an air outlet 3, a sealing ring 4, a sealing gasket 5, a spring 6, a moving rod 7, a first magnet 8, a second magnet 9, a first connecting rod 10, a second connecting rod 11, a central axis 12, a connecting block 13, a gear 14 and a rack 15, wherein the valve body 1 is provided with an air inlet 2, the valve body 1 is provided with an air outlet 3, a sealing ring 4 is provided inside the valve body 1, a sealing gasket 5 is provided inside the valve body 1, a spring 6 is provided inside the valve body 1, and the valve body 1 is connected to the inner There is a moving rod 7, and the outer side of the moving rod 7 is connected to the first magnet 8, the second magnet 9 is installed inside the valve body 1, the first connecting rod 10 is arranged inside the valve body 1, and the second connecting rod 11 is arranged outside the first connecting rod 10, the second connecting rod 11 is connected to the central axis 12, and the outer side of the central axis 12 is connected to the connecting block 13, the central axis 12 is arranged with a gear 14, the outer side of the moving rod 7 is connected to the rack 15, the connection mode of the moving rod 7 and the valve body 1 is a movable connection, and the moving rod 7 constitutes a moving structure inside the valve body 1, and the connection mode of the moving rod 7 and the first magnet 8 is a fixed connection, and the moving rod The connection mode between the first connecting rod 10 and the valve body 1 is convenient for the movable rod 7 to move inside the valve body 1, so as to facilitate its use, so that it can drive the gear 14 to rotate, so that it is convenient to return to the closed position. The connection mode between the first connecting rod 10 and the valve body 1 is a fixed connection, and the connection mode between the first connecting rod 10 and the second connecting rod 11 is a fixed connection, and the second connecting rod 11 is directly above the sealing gasket 5. The connection mode between the first connecting rod 10 and the valve body 1 makes the connection between the first connecting rod 10 and the valve body 1 more stable, thereby preventing it from falling off, and the connection mode between the first connecting rod 10 and the second connecting rod 11 is a fixed connection. The connection between the first connecting rod 10 and the second connecting rod 11 is more stable, the connection between the second connecting rod 11 and the central axis 12 is a movable connection, and the connection between the central axis 12 and the connecting block 13 is a fixed connection, and there are two connecting blocks 13. At the same time, the connection between the connecting block 13 and the sealing gasket 5 is a fixed connection. The connection between the second connecting rod 11 and the central axis 12 enables the central axis 12 to rotate on the second connecting rod 11, making it convenient to use, and the connection between the central axis 12 and the connecting block 13 makes the connection between the central axis 12 and the connecting block 13 more stable, thereby preventing it from falling off.

[0018] The connection between the gear 14 and the center shaft 12 is a fixed connection, and the center shaft 12 forms a rotating structure inside the valve body 1 through the gear 14. The connection between the gear 14 and the center shaft 12 makes the connection between the gear 14 and the center shaft 12 more stable, thereby preventing it from falling off, making it convenient to drive the sealing gasket 5 to rotate.

[0019] The connection between the rack 15 and the moving rod 7 is a fixed connection, and the rack 15 constitutes a moving structure inside the valve body 1. The connection between the rack 15 and the moving rod 7 makes the connection between the rack 15 and the moving rod 7 more stable, thereby preventing it from falling off, making it convenient to drive the sealing gasket 5 to rotate, thereby facilitating return closing.

[0020] Working principle: When using the extraction and exhaust check valve actuator of the ultra-supercritical secondary reheat unit, first, check the integrity of the device, then transport the device to the corresponding working position, and then when pumping air, the sealing gasket 5 begins to rotate to the right with the central axis 12 as the center, and then drives the gear 14 to rotate, thereby moving the rack 15 and the moving rod 7. After that, when the pumping is completed, it begins to move to the right under the action of the spring 6, the first magnet 8 and the second magnet 9, thereby driving the gear 14 to rotate, making it convenient for the sealing gasket 5 to return to the closed position, and the return speed is faster. The contents not described in detail in this manual, such as the sealing ring 4, etc., are all existing technologies known to professional and technical personnel in this field.

[0021] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An extraction and exhaust check valve actuator for an ultra-supercritical secondary reheat unit, comprising a valve body (1), an air inlet (2), an air outlet (3), a sealing ring (4) and a rack (15), Features: The valve body (1) is provided with an air inlet (2), the valve body (1) is provided with an air outlet (3), a sealing ring (4) is provided inside the valve body (1), a sealing pad (5) is provided inside the valve body (1), a spring (6) is provided inside the valve body (1), a moving rod (7) is connected inside the valve body (1), and a first magnet (8) is connected to the outside of the moving rod (7), a second magnet (9) is installed inside the valve body (1), a first connecting rod (10) is provided inside the valve body (1), and a second connecting rod (11) is provided outside the first connecting rod (10), a central shaft (12) is connected to the second connecting rod (11), and a connecting block (13) is connected to the outside of the central shaft (12), a gear (14) is provided on the central shaft (12), and the moving rod (7) is connected to the outside of the moving rod (7). A rack (15) is connected to the outer side of the movable rod (7); the movable rod (7) is connected to the valve body (1) in a movable manner, and the movable rod (7) forms a movable structure inside the valve body (1); the movable rod (7) is connected to the first magnet (8) in a fixed manner; the first connecting rod (10) is connected to the valve body (1) in a fixed manner, and the first connecting rod (10) is connected to the second connecting rod (11) in a fixed manner, and the second connecting rod (11) is located directly above the sealing gasket (5); the second connecting rod (11) is connected to the central shaft (12) in a movable manner, and the central shaft (12) is connected to the connecting block (13) in a fixed manner, and the number of the connecting blocks (13) is two, and the connecting block (13) is connected to the sealing gasket (5) in a fixed manner.

2. The extraction and exhaust check valve actuator of an ultra-supercritical double reheat unit according to claim 1, Features: The gear (14) and the central shaft (12) are connected in a fixed manner, and the central shaft (12) forms a rotating structure inside the valve body (1) through the gear (14).

3. The extraction and exhaust check valve actuator of an ultra-supercritical double reheat unit according to claim 1, Features: The rack (15) and the movable rod (7) are connected in a fixed manner, and the rack (15) forms a movable structure inside the valve body (1).

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