Corrosion-resistant composite sealing mechanism of boiler blowdown valve

Abstract

The utility model provides a kind of corrosion -resistant composite sealing mechanism of boiler blowdown valve, it is related to boiler blowdown valve technical field, including valve body flow-through component and upper control mechanism, the top of valve body flow-through component is provided with the upper control mechanism of sleeve joint installation, the bottom of valve body flow-through component is provided with the lower control mechanism of sleeve joint installation, the upper control mechanism includes end-to-column, variable speed machine box, driving motor, sealing sleeve column, transmission rod, threaded rod, threaded cylinder and upper valve block;The utility model mainly is to utilize double-layer upper valve ring, annular frame and lower valve ring, so that upper valve block can be inserted on upper valve ring, after the output operation of puncture needle, processing cabin, solution, isolation membrane on lower control mechanism, so that solution is broken after reaction fast to produce gas input to ball gasbag and expand closed in lower valve ring form fast brake effect, can effectively improve timeliness.

Description

Technical Field

[0001] This utility model relates to the field of boiler blowdown valve technology, and in particular to a corrosion-resistant composite sealing mechanism for a boiler blowdown valve. Background Technology

[0002] The boiler periodic blowdown valve, also known as a high-pressure differential regulating valve, is a multi-stage throttling device used in power plant boiler systems to periodically discharge sedimented impurities from water. It also has a high-pressure shut-off function. The valve is driven by program control or manual control and is suitable for high-temperature and high-pressure conditions. The fluid flow adopts a high-inlet and low-outlet mode. Its core design adopts a four-stage progressive pressure reduction structure. By changing the fluid direction, the flow rate is controlled to prevent cavitation damage. The separation of the throttling surface and the sealing surface can protect the sealing performance.

[0003] Existing corrosion-resistant composite sealing mechanisms are generally connected to the boiler output end via a valve body. After connection, the opening and closing of the valve body allows materials to be discharged. However, after prolonged use, single valve rings may experience sealing defects, resulting in poor timeliness when emergency shut-off is required. Therefore, this invention proposes a corrosion-resistant composite sealing mechanism for boiler blowdown valves to solve the problems existing in the prior art. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a corrosion-resistant composite sealing mechanism for a boiler blowdown valve. This corrosion-resistant composite sealing mechanism mainly utilizes a double-layered upper valve ring, annular frame, and lower valve ring, allowing the upper valve block to be inserted into the upper valve ring. After output operation via the puncture needle, treatment chamber, generating solution, and isolation membrane on the lower control mechanism, the generating solution ruptures, reacting rapidly to generate gas, which is then input into the balloon bladder for expansion and closure, forming a rapid braking effect on the lower valve ring, effectively improving timeliness.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a corrosion-resistant composite sealing mechanism for a boiler blowdown valve, comprising a valve body flow component and an upper control mechanism, wherein the upper control mechanism is provided at the top of the valve body flow component and a lower control mechanism is provided at the bottom of the valve body flow component.

[0006] The upper control mechanism includes an end-connecting column, a gearbox, a drive motor, a sealing sleeve, a transmission rod, a threaded rod, a threaded cylinder, and an upper valve block. The end-connecting column is located at the top of the valve body flow member. Above the end-connecting column is a gearbox connected to the output end of the drive motor. The output end of the gearbox is equipped with a sealing sleeve. The inner top side of the sealing sleeve is equipped with a transmission rod, and the output end of the transmission rod is equipped with a threaded rod. The outer side of the threaded rod is equipped with an upper valve block.

[0007] In a preferred embodiment of this utility model, the transmission rod, the threaded rod, and the threaded cylinder are on the same straight line and are distributed in a concentric ring.

[0008] In a preferred embodiment of this utility model, the valve body flow component includes a first flange pipe, an assembly plate, an outer shell plate, an outer patch, an inner valve shell, an end plate, a second flange pipe, an inner arc ring seat, an upper valve ring, an annular frame, and a lower valve ring. The output end of the first flange pipe is provided with an assembly plate that is fitted onto it, and the output end of the assembly plate is provided with an outer shell plate. An outer patch is provided on the outer side of the outer shell plate, and an inner valve shell is provided inside the outer shell plate. End plates are provided at both ends of the inner valve shell, and the output end of the assembly plate is provided with a second flange pipe.

[0009] In a preferred embodiment of the present invention, an inner arc ring seat is provided inside the inner valve housing, and an upper valve ring is provided on the inner side of the inner arc ring seat. An annular frame is provided below the upper valve ring, and a lower valve ring is provided below the annular frame.

[0010] In a preferred embodiment of this utility model, the lower control mechanism includes a lower sleeve plate, a set cylinder, a telescopic frame, a lower valve plate, a connecting chamber, a puncture needle, a treatment chamber, a generating solution, a separation membrane, an upper connecting pipe, and a balloon. The lower sleeve plate is disposed on the inner side below the end plate. Set cylinders are disposed on the inner sides of both ends of the lower sleeve plate, and a telescopic frame is disposed at the output end of the set cylinder. A lower valve plate is disposed above the telescopic frame, and a connecting chamber is disposed below the middle part of the lower sleeve plate.

[0011] In a preferred embodiment of this utility model, a puncture needle is provided on the inner side of one end of the connecting chamber, and a processing chamber is provided on the other end of the connecting chamber. The processing chamber contains a generating solution, and an isolation membrane is provided on the inner side of one end of the processing chamber. An upper connecting tube is provided above the processing chamber, and a balloon is provided above the upper connecting tube.

[0012] The beneficial effects of this utility model are as follows:

[0013] This utility model mainly utilizes a double-layered upper valve ring, annular frame, and lower valve ring, allowing the upper valve block to be inserted into the upper valve ring. After output and operation via the puncture needle, treatment chamber, generating solution, and isolation membrane on the lower control mechanism, the generating solution ruptures, reacts, and rapidly generates gas, which is input into the balloon bladder for expansion and closure, forming a rapid braking effect at the lower valve ring, effectively improving timeliness. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;

[0016] Figure 3 This is a cross-sectional three-dimensional structural diagram of the present invention;

[0017] Figure 4 This is a three-dimensional structural diagram of the valve body flow component of this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the upper control mechanism of this utility model;

[0019] Figure 6 This is a three-dimensional structural diagram of the lower control mechanism of this utility model.

[0020] The components include: 1. Valve body flow components; 101. First flange; 102. Assembly plate; 103. Outer shell plate; 104. Outer patch; 105. Inner valve body; 106. End plate; 107. Second flange; 108. Inner arc ring seat; 109. Upper valve ring; 1010. Ring frame; 1011. Lower valve ring; 2. Upper control mechanism; 201. End column; 202. Gearbox; 203. Drive motor; 204. Sealing sleeve; 205. Transmission rod; 206. Threaded rod; 207. Threaded cylinder; 208. Upper valve block; 3. Lower control mechanism; 301. Lower sleeve plate; 302. Packaged cylinder; 303. Telescopic frame; 304. Lower valve plate; 305. Connecting compartment; 306. Puncture needle; 307. Treatment compartment; 308. Generating solution; 309. Isolation membrane; 3010. Upper connecting pipe; 3011. Balloon. Detailed Implementation

[0021] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0022] according to Figure 1-6 As shown, this embodiment proposes a corrosion-resistant composite sealing mechanism for a boiler blowdown valve, including a valve body flow component 1 and an upper control mechanism 2. The upper control mechanism 2 is provided at the top of the valve body flow component 1 and is provided at the bottom of the valve body flow component 1.

[0023] The upper control mechanism 2 includes an end-aligning column 201, a gearbox 202, a drive motor 203, a sealing sleeve column 204, a transmission rod 205, a threaded rod 206, a threaded cylinder 207, and an upper valve block 208. The end-aligning column 201 is located at the top of the valve body flow member 1. Above the end-aligning column 201, the gearbox 202, which is connected to the output end of the drive motor 203, is located. The output end of the gearbox 202 is provided with a sealing sleeve column 204. The inner top side of the sealing sleeve column 204 is provided with a transmission rod 205. The output end of the transmission rod 205 is provided with a threaded rod 206. The outer side of the threaded rod 206 is provided with an upper valve block 208.

[0024] The central axes of the transmission rod 205, the threaded rod 206, and the threaded cylinder 207 are on the same straight line and are distributed in a concentric ring.

[0025] In this embodiment, when control is required, the drive motor 203 outputs power to drive the transmission gearbox 202 to output power, so that the transmission rod 205, threaded rod 206, and threaded cylinder 207 inside the sealing sleeve 204 spirally run, causing the upper valve block 208 to be inserted into the upper valve ring 109 to achieve the effect of upper control and sealing.

[0026] The valve body flow component 1 includes a first flange pipe 101, an assembly plate 102, an outer shell plate 103, an outer patch 104, an inner valve body 105, an end plate 106, a second flange pipe 107, an inner arc ring seat 108, an upper valve ring 109, an annular frame 1010, and a lower valve ring 1011. The output end of the first flange pipe 101 is provided with an assembly plate 102 for sleeve installation, and the output end of the assembly plate 102 is provided with an outer shell plate 103. The outer side of the outer shell plate 103 is provided with an outer patch 104. The inner valve body 105 is provided inside the outer shell plate 103, and the two ends of the inner valve body 105 are provided with end plates 106. The output end of the assembly plate 102 is provided with a second flange pipe 107.

[0027] In this embodiment, the equipment is then connected to the required processing position via the first flange 101 and the second flange 107. The transfer and flow of materials are carried out by the first flange 101, the assembly plate 102 and the second flange 107 in conjunction with the inner valve shell 105. The outer patch 104 on the outer side of the outer shell plate 103 provides effective multi-layer protection to achieve corrosion resistance.

[0028] The inner valve housing 105 is provided with an inner arc ring seat 108, and an upper valve ring 109 is provided on the inner side of the inner arc ring seat 108. An annular frame 1010 is provided below the upper valve ring 109, and a lower valve ring 1011 is provided below the annular frame 1010.

[0029] In this embodiment, during use, an inner arc ring seat 108 with an annular insertion is provided on the inner side of the middle part of the inner valve housing 105, so that the upper valve ring 109 is connected to the lower valve ring 1011 in parallel distribution on the inner side of the inner arc ring seat 108 through the annular frame 1010.

[0030] The lower control mechanism 3 includes a lower sleeve plate 301, a set cylinder 302, a telescopic frame 303, a lower valve plate 304, a connecting chamber 305, a puncture needle 306, a treatment chamber 307, a generating solution 308, an isolation membrane 309, an upper connecting pipe 3010, and a balloon 3011. The lower sleeve plate 301 is located on the inner side below the end plate 106. The set cylinders 302 are located on the inner sides of both ends of the lower sleeve plate 301, and the telescopic frame 303 is located at the output end of the set cylinders 302. The lower valve plate 304 is located above the telescopic frame 303, and the connecting chamber 305 is located in the lower middle part of the lower sleeve plate 301.

[0031] In this embodiment, when further control is required, the set cylinder 302 is used to output and run, which causes the telescopic frame 303 to drive the lower valve plate 304 to be raised. After being raised, the lower valve ring 1011 is inserted and installed.

[0032] A puncture needle 306 is provided on the inner side of one end of the connecting chamber 305, and a processing chamber 307 is provided on the other end of the connecting chamber 305. The processing chamber 307 contains a generating solution 308. An isolation membrane 309 is provided on the inner side of one end of the processing chamber 307. An upper connecting tube 3010 is provided above the processing chamber 307, and a balloon 3011 is provided above the upper connecting tube 3010.

[0033] In this embodiment, the electromagnetic adsorption force of the processing chamber 307 is then used to control the rapid adsorption of the puncture needle 306, causing the puncture needle 306 to puncture the isolation membrane 309 to open the generating solution 308. This allows the gas formed after the reaction to be input into the balloon 3011 through the upper connecting pipe 3010 to increase its volume and form a sealed state with the lower valve ring 1011, thereby achieving the effect of emergency braking.

[0034] The working principle of the corrosion-resistant composite sealing mechanism of the boiler blowdown valve is as follows: During use, an annularly inserted inner arc ring seat 108 is provided on the inner side of the middle of the inner valve body 105. The inner side of the inner arc ring seat 108 allows the upper valve ring 109 to be connected in parallel via the annular frame 1010 and the lower valve ring 1011. Then, the equipment is connected to the required processing position via the first flange pipe 101 and the second flange pipe 107. Material transfer and flow are achieved through the cooperation of the first flange pipe 101, the assembly plate 102, and the second flange pipe 107 with the inner valve body 105. Effective multi-layer protection is achieved through the outer patch 104 on the outer side of the outer shell plate 103 to achieve corrosion resistance. When control is required, the drive motor 203 outputs power to drive the transmission gearbox 202 to operate. The transmission rod 205, threaded rod 206, and threaded cylinder 207 inside the sealing sleeve 204 spirally operate, causing the upper valve block 208 to be inserted into the upper valve ring 109 to achieve the effect of upper control sealing. When further control is required, the set cylinder 302 is used to output and operate, causing the telescopic frame 303 to drive the lower valve plate 304 to be raised. After being raised, the lower valve ring 1011 is inserted and installed. Then, the electromagnetic adsorption force of the processing chamber 307 is used to control the puncture needle 306 to be quickly adsorbed, so that the puncture needle 306 punctures the isolation membrane 309 to open the generating solution 308. The gas formed after the reaction is input into the balloon 3011 through the upper connecting pipe 3010 to increase the volume and form a sealing state with the lower valve ring 1011, thereby achieving the effect of emergency braking.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant composite sealing mechanism for a boiler blowdown valve, comprising a valve body flow component (1) and an upper control mechanism (2), characterized in that: The valve body flow member (1) is provided with an upper control mechanism (2) that is sleeved and installed at the top end, and the valve body flow member (1) is provided with a lower control mechanism (3) that is sleeved and installed at the bottom end. The upper control mechanism (2) includes an end-aligning column (201), a gearbox (202), a drive motor (203), a sealing sleeve column (204), a transmission rod (205), a threaded rod (206), a threaded cylinder (207), and an upper valve block (208). The end-aligning column (201) is located at the top of the valve body flow member (1). Above the end-aligning column (201), a gearbox (202) is provided to connect to the output end of the drive motor (203). The output end of the gearbox (202) is provided with a sealing sleeve column (204). The inner top side of the sealing sleeve column (204) is provided with a transmission rod (205). The output end of the transmission rod (205) is provided with a threaded rod (206). The outer side of the threaded rod (206) is provided with an upper valve block (208).

2. The corrosion-resistant composite sealing mechanism of a boiler blowdown valve according to claim 1, characterized in that: The transmission rod (205) is on the same straight line as the threaded rod (206) and the threaded cylinder (207) and is distributed in a concentric ring.

3. The corrosion-resistant composite sealing mechanism of a boiler blowdown valve according to claim 1, characterized in that: The valve body flow component (1) includes a first flange pipe (101), an assembly plate (102), an outer shell plate (103), an outer patch (104), an inner valve shell (105), an end plate (106), a second flange pipe (107), an inner arc ring seat (108), an upper valve ring (109), an annular frame (1010), and a lower valve ring (1011). The output end of the first flange pipe (101) is provided with an assembly plate (102) for sleeve installation, and the output end of the assembly plate (102) is provided with an outer shell plate (103). The outer side of the outer shell plate (103) is provided with an outer patch (104). The inner valve shell (105) is provided inside the outer shell plate (103), and the two ends of the inner valve shell (105) are provided with end plates (106). The output end of the assembly plate (102) is provided with a second flange pipe (107).

4. The corrosion-resistant composite sealing mechanism of a boiler blowdown valve according to claim 3, characterized in that: The inner valve housing (105) is provided with an inner arc ring seat (108), and an upper valve ring (109) is provided on the inner side of the inner arc ring seat (108). An annular frame (1010) is provided below the upper valve ring (109), and a lower valve ring (1011) is provided below the annular frame (1010).

5. The corrosion-resistant composite sealing mechanism of a boiler blowdown valve according to claim 3, characterized in that: The lower control mechanism (3) includes a lower sleeve plate (301), a sleeve cylinder (302), a telescopic frame (303), a lower valve plate (304), a connecting chamber (305), a puncture needle (306), a treatment chamber (307), a generating solution (308), an isolation membrane (309), an upper connecting pipe (3010), and a balloon (3011). The lower sleeve plate (301) is located on the inner side below the end plate (106). The sleeve cylinders (302) are located on the inner sides of both ends of the lower sleeve plate (301), and the telescopic frame (303) is located at the output end of the sleeve cylinder (302). The lower valve plate (304) is located above the telescopic frame (303), and the connecting chamber (305) is located below the middle part of the lower sleeve plate (301).

6. The corrosion-resistant composite sealing mechanism of a boiler blowdown valve according to claim 5, characterized in that: A puncture needle (306) is provided on the inner side of one end of the connecting chamber (305), and a processing chamber (307) is provided on the other end of the connecting chamber (305). The processing chamber (307) contains a generating solution (308). An isolation membrane (309) is provided on the inner side of one end of the processing chamber (307). An upper connecting tube (3010) is provided above the processing chamber (307), and a balloon (3011) is provided above the upper connecting tube (3010).

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