Sealing mechanism and pipeline control valve

Abstract

The utility model relates to the technical field of control valve connection and sealing, and particularly discloses a sealing mechanism and a pipeline control valve, comprising a protection unit, a sealing shell and a fastening assembly arranged on the sealing shell; and the sealing unit comprises a first sealing ring arranged on the sealing shell, a second sealing ring arranged on the first sealing ring and a fixing assembly arranged on the first sealing ring. The sealing mechanism solves the problems that a water cooling system flange is easily corroded in a marine environment, and the sealing performance is affected. Meanwhile, the pipeline control valve solves the problems of equipment damage and safety risk caused by leakage of cooling liquid due to faults of a water cooling system.

Description

Technical Field

[0001] The utility model relates to the technical field of control valve connection sealing, in particular to a sealing mechanism and a pipeline control valve. Background Art

[0002] The water-cooled heat dissipation pipeline of offshore wind turbines is a vital part of the cooling system. It is responsible for removing the heat generated by the heat-generating components through the circulation of the cooling medium and dissipating it to the external environment to ensure the normal operation of the wind turbine and extend its service life.

[0003] Control valves play a core role in water-cooled heat dissipation pipe systems. Their main function is to monitor and adjust the flow of cooling medium flowing through the system. When abnormal flow occurs in the system due to blockage or other reasons, whether the flow decreases or increases, the control valve can quickly send an alarm to the control center to ensure the stability of the entire system.

[0004] In the water-cooling heat dissipation system of offshore wind turbines, flange connection is the main way to connect pipes and control valves. It faces high temperature, high humidity and high salt spray environment. These factors can easily damage the sealing and surface condition of the flange, increase the risk of chemical corrosion, reduce the flatness of the sealing surface, and thus affect the sealing effect of the connection. Moreover, in the case of pipe rupture or water pump failure in the water cooling system, even if the pump has stopped, the remaining coolant in the pipeline may leak into the inverter cabinet, causing equipment damage and safety hazards. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In view of the problem in the prior art that the flange connection of the water cooling system is susceptible to corrosion in the marine environment, which affects the sealing performance, the present utility model is proposed.

[0007] Therefore, the utility model aims to provide a sealing mechanism, which aims to solve the problem that the flange connection of the water cooling system is susceptible to corrosion in the marine environment, thereby affecting the sealing performance.

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions: a sealing mechanism, comprising:

[0009] A protection unit, comprising a sealing shell and a fastening assembly arranged on the sealing shell; and,

[0010] The sealing unit comprises a sealing ring 1 arranged on the sealing shell, a sealing ring 2 arranged on the sealing ring 1, and a fixing component arranged on the sealing ring 1.

[0011] As a preferred solution of the sealing mechanism described in the utility model, the fastening assembly includes an expansion sleeve arranged on one side of the sealing ring, a bolt arranged on the expansion sleeve, and a clamping block arranged on the expansion sleeve.

[0012] As a preferred solution of the sealing mechanism described in the utility model, the fixing assembly includes a fixing block 1 arranged on the sealing ring 1, a fixing block 2 arranged on the sealing ring 2, and a locking piece arranged on the sealing ring 1 and the sealing ring 2.

[0013] As a preferred solution of the sealing mechanism described in the utility model, it also includes:

[0014] The flange unit comprises a pipe arranged on one side of the fastening component, a flange 1 arranged on the pipe, a flange 2 arranged on the flange 1, and a slot component arranged on the flange 1.

[0015] As a preferred solution of the sealing mechanism of the utility model, the slot assembly includes a positioning slot arranged on the flange 1, a block slot arranged on the positioning slot, and a cylindrical pad arranged on the positioning slot;

[0016] A sealing gasket is arranged on the flange 1, a convex ring is arranged on the sealing gasket, and a mounting hole is arranged on the sealing gasket.

[0017] The beneficial effects of the utility model are as follows: through the cooperation between the protection unit and the sealing unit, the sealing protection of the pipeline and the flange connection is increased, and the problem that the flange connection of the water cooling system is susceptible to corrosion in the marine environment and affects the sealing performance is solved.

[0018] In view of the problem in the above-mentioned prior art that a failure of the water cooling system leads to leakage of coolant, causing equipment damage and safety risks, the present utility model is proposed.

[0019] Therefore, the utility model aims to provide a pipeline control valve, the purpose of which is to solve the problem that a failure of a water cooling system causes coolant leakage, thereby causing equipment damage and safety risks.

[0020] As a preferred solution of the pipeline control valve described in the utility model, wherein: a pipeline control valve further includes:

[0021] A valve control unit, comprising a connecting piece arranged on one side of the sealing ring, a valve housing arranged on the connecting piece, and a valve control assembly arranged on the valve housing; and,

[0022] The monitoring unit includes a pressure sensor arranged on one side of the sealing ring 2, a support member arranged on the pressure sensor, and a humidity sensor arranged on the support member.

[0023] As a preferred solution of the pipeline control valve described in the utility model, the valve control component includes a top plate arranged on the valve housing, a top cover arranged on the top plate, and a fixing bolt arranged on the top cover.

[0024] As a preferred solution of the pipeline control valve described in the utility model, the valve control component also includes an extension piece 1 arranged on the top cover, an extension piece 2 arranged on the extension piece 1, and a top cup 1 arranged on the extension piece 2.

[0025] As a preferred solution of the pipeline control valve described in the utility model, wherein: a valve seat is arranged on the valve housing, a supporting bottom plate is arranged on the valve seat, and a connecting fixing piece is arranged on the valve housing.

[0026] As a preferred solution of the pipeline control valve described in the utility model, wherein: a top cup second is arranged on the top cup first, an exhaust plug is arranged on the top cup second, a fixed base is arranged on the top cup, and a hand wheel is arranged on the fixed base.

[0027] The beneficial effects of the utility model are as follows: through the cooperation between the valve control unit and the monitoring unit, functions such as real-time monitoring, automatic flow cut-off protection and intelligent control are added to solve the problem of coolant leakage caused by water cooling system failure, causing equipment damage and safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0029] Figure 1 The utility model is a schematic diagram of the overall structure of a sealing mechanism.

[0030] Figure 2 The utility model is a schematic diagram of a fastening assembly structure of a sealing mechanism.

[0031] Figure 3 The utility model is a schematic diagram of a fixing component structure of a sealing mechanism.

[0032] Figure 4The utility model is a schematic diagram of the flange unit structure of a sealing mechanism.

[0033] Figure 5 for Figure 4 Enlarged schematic diagram at point A in the middle.

[0034] Figure 6 The utility model is a schematic diagram of a sealing gasket structure of a sealing mechanism.

[0035] Figure 7 The utility model is a schematic diagram of the overall structure of a pipeline control valve.

[0036] Figure 8 The utility model is a schematic diagram of the structure of a valve control component of a pipeline control valve. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0040] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0041] Example 1

[0042] Reference Figure 1 - Figure 3 , which is the first embodiment of the utility model, provides a sealing mechanism, the device comprising:

[0043] The protection unit 100 includes a sealing shell 101, and a fastening assembly 102 disposed on the sealing shell 101; and the sealing unit 200 includes a sealing ring 1 201 disposed on the sealing shell 101, a sealing ring 202 disposed on the sealing ring 1 201, and a fixing assembly 203 disposed on the sealing ring 1 201. The fastening assembly 102 is used to fix the housing, the sealing ring 1 201 and the sealing ring 202 on the flange 1 302 and the flange 2 303, and the fixing assembly 203 is used to lock the sealing ring 1 201 and the sealing ring 202 to increase the sealing performance between the sealing ring 1 201 and the sealing ring 202. The surfaces of the sealing ring 1 201, the sealing ring 202 and the housing are coated with anti-corrosion materials. The sealing ring 1 201 and the sealing ring 202 are matched with the housing to protect the connection between the flange and the pipeline 301 to prevent corrosive media from entering the surface of the flange, thereby avoiding damage to the flange surface and affecting the sealing performance of the flange.

[0044] The fastening assembly 102 includes an expansion sleeve 102b disposed on the side of the sealing ring 1 201, a bolt 102a disposed on the expansion sleeve 102b, and a clamping block 102c disposed on the expansion sleeve 102b. The fastening assembly 102 is used to fix the housing on the flange. By rotating the bolt 102a, the opening and closing angle between the expansion sleeve 102b is increased, so that the clamping block 102c is clamped on the flange. The flange here refers to the flange 1 302 and the flange 2 303.

[0045] The fixing assembly 203 includes a fixing block 1 203a disposed on the sealing ring 1 201, a fixing block 203b disposed on the sealing ring 202, and a locking piece 203c disposed on the sealing ring 1 201 and the sealing ring 202. The locking piece 203c includes a bolt 102a and a nut, and the bolt 102a passes through the fixing block 1 203a and the fixing block 203b and the nut to be connected, and the sealing degree between the sealing ring 1 201 and the sealing ring 2 202 is increased by rotating the bolt 102a.

[0046] During use, the operator will first connect flange 1 302 and flange 2 303. Flange 1 302 is provided with a hole groove, and flange 2 303 is provided with a connecting column matching the hole groove, so that when the operator installs flange 1 302 and flange 2 303, flange 1 302 will not be displaced on flange 2 303. After the operator installs flange 1 302 on flange 2 303, the expansion sleeve 102b is inserted into flange 1 302 and flange 2 303, and the opening and closing angles between the expansion sleeves 102b are adjusted by rotating the bolts 102a on the expansion sleeve 102b, and the clamping block 102c at one end of the expansion sleeve 102b is firmly clamped on the flange, and the expansion sleeve 102b and the clamping block 102c are used as fulcrums. By adjusting the locking piece 203c on the fixing assembly 203, the clamping force between the fixing block 1 203a and the fixing block 203b is increased, thereby increasing the sealing between the sealing ring 1 201 and the sealing ring 202.

[0047] The sealing ring 1 201 and the sealing ring 202 fit tightly on the surface of the flange 1 302 and the flange 2 303, and cooperate with the shell to form a protective layer for the connection between the flange and the pipeline 301. This design effectively prevents the corrosive medium from penetrating into the flange surface, thereby reducing the damage that the flange may suffer due to corrosion and ensuring that the sealing performance of the flange is not damaged. In this way, the combination of the sealing ring and the shell not only improves the durability of the flange connection, but also maintains the sealing integrity of the entire pipeline and flange connection.

[0048] Example 2

[0049] Reference Figure 1 - Figure 6 , which is the second embodiment of the utility model, and this embodiment is different from the first embodiment in that: it also includes,

[0050] The flange unit 300 includes a pipe 301 disposed on one side of the fastening assembly 102, a flange 1 302 disposed on the pipe 301, a flange 2 303 disposed on the flange 1 302, and a slot assembly 304 disposed on the flange 1 302. The slot assembly 304 is used to provide a space for the fastening assembly 102 to work, and the slot assembly 304 is disposed on both the flange 1 302 and the flange 2 303.

[0051] Compared with Example 1, further, the slot assembly 304 includes a positioning slot 304a provided on the flange 1 302, a block slot 304b provided on the positioning slot 304a, and a cylindrical pad 304c provided on the positioning slot 304a. The positioning slot 304a is used to provide a working space for the expansion sleeve 102b, the block slot 304b is used to provide a working space for the block 102c, and the cylindrical pad 304c is used to increase the sealing between the positioning slot 304a and the expansion sleeve 102b to prevent the corrosive medium from entering the interior of the flange through the positioning slot 304a.

[0052] Among them, a sealing gasket 305 is provided on the flange 1 302, a convex ring 306 is provided on the sealing gasket 305, and a mounting hole 307 is provided on the sealing gasket 305. The sealing gasket 305 is used to increase the sealing performance of the surface connection between the flange 1 302 and the flange 2 303. The flange 1 302 and the flange 2 303 are both provided with grooves matching the convex ring 306, which can prevent the flange 1 302 and the flange 2 303 from being displaced from between the flange 1 302 and the flange 2 303 during the installation process, thereby increasing the sealing performance between the flange 1 302 and the flange 2 303. The mounting hole 307 on the sealing gasket 305 facilitates the installation of the connecting column on the flange 2 303 on the flange 1 302 through the sealing gasket 305.

[0053] During use, the operator will first install the sealing gasket 305 on flange 1 302, and then install flange 2 303 on flange 1 302. Specifically, the convex ring 306 on the sealing gasket 305 will be placed on the groove on flange 1 302, the connecting column on flange 2 303 will pass through the mounting hole 307 on the sealing gasket 305, and flange 2 303 will be installed on the surface of flange 1 302. The provision of the sealing gasket 305 increases the sealing of the connecting surface between flange 1 302 and flange 2 303, effectively preventing corrosive media from penetrating into the flange surface, thereby reducing the damage that the flange may suffer due to corrosion.

[0054] Then, the operator aligns and places the expansion sleeve 102b on the housing into the positioning groove 304a, and adjusts the angle of the expansion sleeve 102b by rotating the bolt 102a to ensure that the clamping block 102c is correctly embedded in the clamping block groove 304b. By using the expansion sleeve 102b and the clamping block 102c as fulcrums and adjusting the fasteners on the fixing assembly 203, the clamping force between the fixing block 1 203a and the fixing block 2 203b is enhanced, thereby improving the sealing effect between the sealing ring 1 201 and the sealing ring 2 202.

[0055] The remaining structures are the same as those of Example 1.

[0056] Example 3

[0057] Reference Figure 1 - Figure 8 , which is the third embodiment of the utility model, and this embodiment is different from the second embodiment in that: a pipeline control valve, further comprising,

[0058] The valve control unit 400 includes a connector 401 disposed on one side of the sealing ring 201, a valve housing 402 disposed on the connector 401, and a valve control assembly 403 disposed on the valve housing 402; and a monitoring unit 500 includes a pressure sensor 501 disposed on one side of the sealing ring 202, a support 502 disposed on the pressure sensor 501, and a humidity sensor 503 disposed on the support 502. The pressure sensor 501, the humidity sensor 503, and the control system add functions such as real-time monitoring, automatic flow cut-off protection, and intelligent control, and cooperate with the use of the valve control unit 400 to effectively solve the problem of coolant leakage caused by water cooling system failure, causing equipment damage and safety risks.

[0059] Compared with Example 2, further, the valve control assembly 403 includes a top plate 403a disposed on the valve housing 402, a top cover 403b disposed on the top plate 403a, and a fixing bolt 403c disposed on the top cover 403b. The valve control assembly 403 also includes an extension piece 1 403d disposed on the top cover 403b, an extension piece 2 403e disposed on the extension piece 1 403d, and a top cup 1 403f disposed on the extension piece 2 403e. The overall valve control assembly 403 is used to adjust the flow rate of the medium in the pipeline 301 to ensure that the medium passes through the pipeline 301 at the required speed and amount.

[0060] Among them, the valve housing 402 is provided with a valve seat 404, the valve seat 404 is provided with a supporting bottom plate 405, and the valve housing 402 is provided with a connecting fixture 406. The top cup 1 403f is provided with a top cup 2 403g, the top cup 2 403g is provided with an exhaust plug 403h, the top cup is provided with a fixed base 408, and the fixed base 408 is provided with a hand wheel 407. The supporting bottom plate 405 is used to fix and support the valve seat 404, and the hand wheel 407 is used to operate the control valve, open or close the valve, or adjust the opening of the valve to control the flow of the medium.

[0061] During use, the pressure sensor 501 installed on the pipeline 301 and the humidity sensor 503 inside the inverter monitor the pressure and flow of the pipeline 301 and the humidity inside the inverter in real time to ensure that the fault can be quickly discovered and handled when it occurs. Once the abnormal conditions such as the serious mismatch between the outlet water pressure of the inverter and the inlet water pressure, and the sudden increase in the humidity inside the inverter are detected, it can be initially suspected that the water pipeline inside the inverter is broken. The system can automatically close the control valve, cut off the flow of cooling water, prevent the cooling water from further flowing into the inverter, and protect the equipment from damage.

[0062] The pressure sensor 501 and the water inlet and outlet control valves can be connected to the main control system of the wind turbine, and the main control logic can be improved and optimized to have intelligent control functions, and can make judgments and decisions according to the preset control strategy to achieve automatic management. At the same time, the system can also automatically record fault information and send it to the remote monitoring center or operation and maintenance personnel through the communication interface, so as to facilitate timely detection and handling of faults. It can significantly reduce the downtime and maintenance costs of wind turbines caused by water cooling system failures, and improve the operating efficiency and safety of wind farms.

[0063] The remaining structure is the same as that of Example 2.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A sealing mechanism, characterized in that: include, A protection unit (100) comprises a sealing shell (101) and a fastening assembly (102) arranged on the sealing shell (101); and, The sealing unit (200) comprises a sealing ring 1 (201) arranged on the sealing shell (101), a sealing ring 2 (202) arranged on the sealing ring 1 (201), and a fixing component (203) arranged on the sealing ring 1 (201).

2. The sealing mechanism according to claim 1, characterized in that: The fastening assembly (102) comprises an expansion sleeve (102b) arranged on one side of the sealing ring (201), a bolt (102a) arranged on the expansion sleeve (102b), and a clamping block (102c) arranged on the expansion sleeve (102b).

3. The sealing mechanism according to claim 2, characterized in that: The fixing assembly (203) comprises a fixing block 1 (203a) arranged on the sealing ring 1 (201), a fixing block 2 (203b) arranged on the sealing ring 2 (202), and a locking piece (203c) arranged on the sealing ring 1 (201) and the sealing ring 2 (202).

4. The sealing mechanism according to claim 3, characterized in that: Also includes, The flange unit (300) comprises a pipe (301) arranged on one side of the fastening assembly (102), a flange 1 (302) arranged on the pipe (301), a flange 2 (303) arranged on the flange 1 (302), and a slot assembly (304) arranged on the flange 1 (302).

5. The sealing mechanism according to claim 4, characterized in that: The clamping slot assembly (304) comprises a positioning slot (304a) arranged on the flange 1 (302), a clamping block slot (304b) arranged on the positioning slot (304a), and a cylindrical pad (304c) arranged on the positioning slot (304a); The flange 1 (302) is provided with a sealing gasket (305), the sealing gasket (305) is provided with a convex ring (306), and the sealing gasket (305) is provided with a mounting hole (307).

6. A pipeline control valve, characterized in that: The sealing mechanism comprises any one of claims 1 to 5, further comprising: A valve control unit (400) comprises a connecting piece (401) arranged on one side of the sealing ring (201), a valve housing (402) arranged on the connecting piece (401), and a valve control assembly (403) arranged on the valve housing (402); and, The monitoring unit (500) comprises a pressure sensor (501) arranged on one side of the second sealing ring (202), a support member (502) arranged on the pressure sensor (501), and a humidity sensor (503) arranged on the support member (502).

7. The pipeline control valve according to claim 6, characterized in that: The valve control assembly (403) comprises a top plate (403a) arranged on the valve housing (402), a top cover (403b) arranged on the top plate (403a), and a fixing bolt (403c) arranged on the top cover (403b).

8. The pipeline control valve according to claim 7, characterized in that: The valve control assembly (403) also includes an extension piece 1 (403d) disposed on the top cover (403b), an extension piece 2 (403e) disposed on the extension piece 1 (403d), and a top cup 1 (403f) disposed on the extension piece 2 (403e).

9. The pipeline control valve according to claim 8, characterized in that: The valve housing (402) is provided with a valve seat (404), a supporting bottom plate (405) is provided on the valve seat (404), and a connecting fixing member (406) is provided on the valve housing (402).

10. The pipeline control valve according to claim 9, characterized in that: The top cup one (403f) is provided with a top cup two (403g), the top cup two (403g) is provided with an exhaust plug (403h), the top cup is provided with a fixed base (408), and the fixed base (408) is provided with a hand wheel (407).

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