A molten salt valve switching device
By designing a molten salt valve switching device that includes a connecting rod, sleeve, pull rod, connector, and drive shaft, the problem of molten salt valve blockage under low temperature conditions was solved, achieving efficient unblocking without furnace shutdown and simplified operation.
Patent Information
- Application Number
- CN202422926454.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Existing molten salt valves are prone to clogging under low-temperature conditions, causing them to malfunction and requiring furnace shutdown to clean up the accumulated salt, which is complex and inefficient.
A molten salt valve switching device was designed, consisting of a connecting rod, sleeve, pull rod, connector, drive shaft, and thrust bearing. The molten salt valve is opened and closed by the rotation of the drive shaft and the coordinated movement of the push rod, thus avoiding furnace shutdown for cleaning.
It enables efficient unblocking of molten salt valves without shutting down the furnace, simplifies operation, and improves the operating efficiency and practicality of molten salt valves.
Smart Images
Figure CN223609461U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a molten salt valve switch device belongs to molten salt valve field. BACKGROUND
[0002] The molten salt valve is installed on the molten salt pipeline of the thermal power unit, is used for opening and closing device, and is important equipment for ensuring normal operation of the unit. The valve core rod is driven to move linearly through the electric device or the manual mechanism, and the medium circulation or blockage is realized.
[0003] During the operation of the molten salt valve, there is low-temperature working condition, and a small amount of molten salt is condensed into solid particles to block the channel under the low-temperature working condition. The molten salt valve cannot be opened and closed by relying on the force of the molten salt valve actuator alone, and the molten salt power plant can only solve the problem by stopping the furnace to clean the accumulated salt. If the furnace is not stopped, the molten salt valve cannot operate normally. The operation is complex, the efficiency is low, and manpower is wasted. SUMMARY
[0004] In order to solve the defects of the above-mentioned technology, the utility model designs a molten salt valve switch device which can be used without stopping the furnace.
[0005] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is: a molten salt valve switch device, which mainly comprises a connecting rod (1), a lower sleeve (2), a right pull rod (3), a right combination (4), a transmission shaft (5), an upper sleeve (6), a top rod (7), a transition sleeve (8), a left pull rod (9), a left combination (10) and a thrust bearing (11).
[0006] The right pull rod is connected with the lower sleeve or the upper sleeve on one side, and is connected with the right combination (4) on the other side. The left pull rod (9) is connected with the lower sleeve (2) or the upper sleeve (6) on one side, and is connected with the left combination (10) on the other side. The top rod (7) is fixedly connected with the transition sleeve (8), and the transition sleeve (8) is fixedly connected with the connecting rod (1). The connecting rod (1) is connected with the molten salt valve (12) in a threaded manner, and the lower sleeve (2) is fixedly connected with the molten salt valve (12).
[0007] The transition sleeve (8) is designed in a window structure, the window width is greater than the diameter of the transmission shaft (5), and the transmission shaft (5) penetrates through the transition sleeve window.
[0008] The right combination (4) is connected with the transmission shaft (5) in a trapezoidal thread connection.
[0009] A boss is arranged on the left side of the transmission shaft (5), and the right end surface of the boss is in contact with the thrust bearing (11).
[0010] The right side of the transmission shaft (5) is an N square structure, and N is an integer multiple of 2.
[0011] The utility model has the following beneficial effects:
[0012] 1. When the molten salt valve is stuck, it can be rotated clockwise or counterclockwise without stopping, which is efficient.
[0013] 2. It is practical and can be installed on the upper part of the molten salt valve when it is stuck, and it is not necessary to install it when the molten salt valve is not stuck.
[0014] 3. The operation method is various. When the salt is accumulated, simply tighten or loosen the transmission shaft; when the salt is accumulated, tighten or loosen the transmission shaft, and cooperate with the lifting or pressing of the top rod to realize the opening or closing of the molten salt valve. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is a schematic diagram of the connection between the molten salt valve opening and closing device and the molten salt valve
[0016] Figure 2 is a schematic diagram of the connection sleeve structure
[0017] Figure 1 In it, 1. connecting rod, 2. lower sleeve, 3. right pull rod, 4. right combination, 5 transmission shaft, 6. upper sleeve, 7. top rod, 8. transition sleeve, 9. left pull rod, 10. left combination, 11. thrust bearing, 12. molten salt valve. DETAILED DESCRIPTION
[0018] The right pull rod is connected to the lower sleeve and the upper sleeve on one side, and is connected to the right combination on the other side; the left pull rod is connected to the lower sleeve (2) and the upper sleeve on one side, and is connected to the connecting piece on the other side; the top rod is fixedly connected with the transition sleeve, and the transition sleeve is fixedly connected with the connecting rod; the connecting rod is connected with the molten salt valve by threads, and the lower sleeve is fixedly connected with the molten salt valve.
[0019] The transition sleeve is designed as a window structure, the window width is greater than the diameter of the transmission shaft, the transmission shaft passes through the window, which can prevent the transmission shaft from rotating, and at the same time realize the guiding effect of the transmission shaft.
[0020] The right combination is connected with the transmission shaft by trapezoidal threads, the trapezoidal threads have strong bearing capacity, high transmission efficiency, and uniform stress distribution, by rotating the transmission shaft, the movement of the right combination along the transmission shaft is realized.
[0021] A boss is arranged on the left side of the transmission shaft, the right end surface of the boss is in contact with the thrust bearing, when the transmission shaft moves, the left combination can be moved by pushing the thrust bearing, so that the top rod, the transition sleeve and the connecting rod move up and down more smoothly.
[0022] The right side of the transmission shaft is an N square structure, N is an integer multiple of 2, the transmission shaft is driven to rotate by an N square tool.
[0023] In the implementation example 1, the lower sleeve is fixedly connected with the molten salt valve, the connecting rod is connected with the molten salt valve through the lower sleeve, the transition sleeve is fixedly connected with the connecting rod, the upper sleeve is sleeved on the jacking rod, the jacking rod is fixedly connected with the transition sleeve, the left pull rod and the right pull rod are connected with the upper sleeve and the lower sleeve, the bearing is put into the transmission shaft, the transmission shaft N side is sequentially passed through the left coupling, the transition sleeve window and the right coupling from right to left, and finally, the left pull rod is connected with the left coupling and the right pull rod is connected with the right coupling.
[0024] In the implementation example 2, when the molten salt valve is blocked, the transmission shaft is rotated clockwise, the distance between the left and right couplings is small, the distance between the upper and lower sleeves is large, the connecting rod moves upward, and the molten salt valve is opened; the transmission shaft is rotated counterclockwise, the distance between the left and right couplings is large, the distance between the upper and lower sleeves is small, the connecting rod moves downward, and the molten salt valve is closed.
[0025] In the implementation example 3, in the extreme working condition, the molten salt valve cannot be simply adjusted by rotating the transmission shaft, and the jacking rod can be lifted or pressed to adjust the opening and closing of the molten salt valve.
Claims
1. A molten salt valve switching apparatus, characterized by: The application relates to a connecting rod (1), a lower sleeve (2), a right pull rod (3), a right coupling (4), a transmission shaft (5), an upper sleeve (6), a top rod (7), a transition sleeve (8), a left pull rod (9), a left coupling (10) and a thrust bearing (11), wherein one side of the right pull rod (3) is connected with the lower sleeve (2) or the upper sleeve (6), and the other side is connected with the right coupling (4); one side of the left pull rod (9) is connected with the lower sleeve (2) or the upper sleeve (6), and the other side is connected with the left coupling (10); the top rod (7) is fixedly connected with the transition sleeve (8), the transition sleeve (8) is fixedly connected with the connecting rod (1), the connecting rod (1) is connected with a molten salt valve (12) in a threaded mode, and the lower sleeve (2) is fixedly connected with the molten salt valve (12).
2. A molten salt valve switching apparatus according to claim 1, wherein: The transition sleeve (8) is designed in a window structure, the window width is greater than the diameter of the transmission shaft (5), and the transmission shaft (5) penetrates through the transition sleeve window.
3. A molten salt valve switching apparatus according to claim 1, wherein: The right coupling (4) is connected with the transmission shaft (5) in a trapezoidal thread mode.
4. A molten salt valve switching apparatus according to claim 1, wherein: A boss is arranged on the left side of the transmission shaft (5), and the right end surface of the boss is in contact with the thrust bearing (11).
5. A molten salt valve switching apparatus according to claim 1, wherein: The right side of the transmission shaft (5) is an N-square structure, and N is an integer multiple of 2.