阅读说明：本技术 一种自适应防漏舷侧阀 (Self-adaptive leak-proof side valve ) 是由 李斌 郭嵩 蔡标华 张德满 胡洋 肖龙洲 王博 王楠 舒鑫 方超 王内 于 2020-09-21 设计创作，主要内容包括：本发明公开了：一种自适应防漏舷侧阀,包括阀体、支架、导流体、轴流阀杆、阀瓣、电液作动器、节流器、阀盘、出口阀杆和控制箱,所述阀体的进口处设有支架,导流体通过支架与阀体连接,阀瓣通过弹簧座、弹簧、压盖、密封圈、轴流阀杆与导流体连接。当管路发生较大泄漏时,阀门能自动快速关闭。(The invention discloses: the utility model provides a self-adaptation leak protection topside valve, includes valve body, support, baffle, axial compressor valve rod, valve clack, electric hydraulic actuator, restrictor, valve disc, export valve rod and control box, the import department of valve body is equipped with the support, and the baffle passes through the support to be connected with the valve body, and the valve clack passes through spring holder, spring, gland, sealing washer, axial compressor valve rod to be connected with the baffle. When the pipeline has large leakage, the valve can be automatically and quickly closed.)

1. The utility model provides a self-adaptation leak protection broadside valve which characterized by: the valve comprises a valve body, a support, a flow guide body, an axial flow valve rod, a valve clack, an electro-hydraulic actuator, a restrictor, a valve disc, an outlet valve rod and a control box, wherein the support is arranged at the inlet of the valve body, the flow guide body is connected with the valve body through the support, the valve clack is connected with the flow guide body through a spring seat, a spring, a gland, a sealing ring and an axial flow valve rod, the inlet electro-hydraulic actuator is connected to the axial flow valve rod through a bushing, a sleeve and a transmission mechanism, the valve disc is arranged at the outlet of the valve body, the valve disc is connected with the outlet electro-hydraulic actuator through the valve disc gland, the outlet valve rod, a packing, the sealing ring and the packing gland, the control box.

2. The adaptive leak-proof broadside valve of claim 1, wherein: and the transmission mechanism at the inlet is connected with an inlet emergency manual operation valve rod.

3. The adaptive leak-proof broadside valve of claim 1, wherein: and an outlet valve rod at the outlet is connected with an outlet emergency manual operation valve rod.

4. The adaptive leak-proof broadside valve of claim 1, wherein: and a low-noise restrictor is arranged in a flow passage in the valve body.

5. The adaptive leak-proof broadside valve of claim 4, wherein: the valve body is provided with an opening for replacing the low-noise throttler, a valve body end cover is arranged at the opening, and a sealing gasket is arranged between the valve body end cover and the low-noise throttler.

6. The adaptive leak-proof broadside valve of claim 5, wherein: the valve body end cover is connected with the valve body through a fastening bolt.

7. The adaptive leak-proof broadside valve of claim 1, wherein: and a stuffing box is arranged at the sleeve.

8. The adaptive leak-proof broadside valve of claim 1, wherein: at least one O-shaped ring is arranged between the sealing ring and the valve body and between the sealing ring and the outlet valve rod.

9. The adaptive leak-proof broadside valve of claim 1, wherein: and a side connecting flange is arranged at the inlet of the valve body, and a pipeline connecting flange is arranged at the outlet of the valve body.

Technical Field

The invention belongs to the field of side valves, and particularly relates to a self-adaptive leak-proof side valve.

Background

With the development of technology, large depth and large flow are the development trend of the current ship sea-going system. With the increase of the navigation depth, the pressure born by part of pipelines is also larger and larger, and higher requirements are made on the safety and the reliability of the pipelines. When the pressure is increased to a certain degree, the pipeline has the risk of accidental breakage, and at this time, the fluid of a superior pipeline of the broken pipeline needs to be cut off in an emergency, so that the inferior pipeline and equipment are maintained. Especially, when the drift diameter of the pipeline is large, if the side valve is not closed in time when the pipeline is damaged, the navigation safety of the ship is affected.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the self-adaptive leakage-proof side valve, and when a pipeline has large leakage, the valve can be automatically and quickly closed.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a self-adaptation leak protection topside valve, includes valve body, support, baffle, axial compressor valve rod, valve clack, electro-hydraulic actuator, restrictor, valve disc, export valve rod and control box, the import department of valve body is equipped with the support, and the baffle passes through the support to be connected with the valve body, and the valve clack passes through spring holder, spring, gland, sealing washer, axial compressor valve rod and is connected with the baffle, and import electro-hydraulic actuator passes through the bush, sleeve and drive mechanism are connected to the axial compressor valve rod, and the exit of valve body is equipped with the valve disc, and the valve disc passes through the valve disc gland, the export valve rod, and filler, the sealing ring, the gland is connected with export electro-hydraulic actuator, and the control box is connected on the valve body to be connected with import electro-hydraulic.

In the technical scheme, the transmission mechanism at the inlet is connected with an inlet emergency manual operation valve rod.

In the technical scheme, the outlet valve rod at the outlet is connected with an outlet emergency manual operation valve rod.

In the technical scheme, a low-noise restrictor is arranged in a flow passage in the valve body.

In the technical scheme, the valve body is provided with an opening for replacing the low-noise restrictor, the opening is provided with a valve body end cover, and a sealing gasket is arranged between the valve body end cover and the low-noise restrictor.

In the technical scheme, the valve body end cover is connected with the valve body through the fastening bolt.

In the technical scheme, the sleeve is provided with the stuffing box.

In the technical scheme, at least one O-shaped ring is arranged between the sealing ring and the valve body and between the sealing ring and the outlet valve rod.

In the technical scheme, a broadside connecting flange is arranged at the inlet of the valve body, and a pipeline connecting flange is arranged at the outlet of the valve body.

The invention has the beneficial effects that: the structure is compact, the conception is ingenious, and when the pipeline has large leakage, the valve can be automatically and quickly closed; the direction of the pipeline connecting flange can be customized according to the space, and the pipeline connecting flange has wide application prospect.

Drawings

Fig. 1 is a schematic sectional structure of the present invention.

Fig. 2 is an enlarged view of a portion of the structure of fig. 1.

Wherein: 1-valve body, 2-bracket, 3-flow guide body, 4-axial flow valve rod, 5-spring, 6-spring seat, 7-gland, 8-sealing ring, 9-valve clack, 10-sleeve, 11-stuffing box, 12-bush, 13-inlet electro-hydraulic actuator, 14-inlet emergency manual operation valve rod, 15-flow rate measuring instrument, 16-valve body end cover, 17-low noise restrictor, 18-sealing gasket, 19-fastening bolt, 20-valve disc, 21-valve disc gland, 22-outlet valve rod, 23-stuffing, 24-sealing ring, 25-O-shaped ring, 26-gland, 27-outlet electro-hydraulic actuator, 28-outlet emergency manual operation valve rod, 29-control box, 30-shipboard connecting flange, etc, 31-pipeline connecting flange.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

As shown in fig. 1 and fig. 2, the self-adaptive leakage-proof side valve comprises a valve body 1, a support 2, a flow guide body 3, an axial flow valve rod 4, a valve flap 9, an electro-hydraulic actuator, a valve disc 20, an outlet valve rod 22 and a control box 29, wherein the support 2 is arranged at an inlet of the valve body 1, the flow guide body 3 is connected with the valve body 1 through the support 2, the valve flap 9 is connected with the flow guide body 3 through a spring seat 6, a spring 5, a gland 7, a sealing ring 8 and the axial flow valve rod 4, the inlet electro-hydraulic actuator 13 is connected with the axial flow valve rod 4 through a bushing 12, a sleeve 10 and a transmission mechanism, the valve disc 20 is arranged at an outlet of the valve body 1, the valve disc 20 is connected with the outlet electro-hydraulic actuator 27 through a valve disc gland 21, an outlet valve rod 22, a packing 23, a sealing ring 24 and a packing gland 26, the control box 29, the flow rate meter 15 is electrically connected to the control box 29.

The invention integrates 2 valves which can be independently opened and closed, one valve is used as a side valve, the side valve is an axial flow valve, the requirement of large flow can be met, the flow guide body 3 optimizes a flow channel in the valve according to the flow field condition, the flow resistance of the system is low, the pressure loss is small, and the noise of the valve is low; the other one is used as a two-way valve. The valve clack 9 is controlled by the inlet electro-hydraulic actuator 13, the valve disc 20 is controlled by the outlet electro-hydraulic actuator 27, and the two valves have mutually independent actions and have better safety. The IP grades of the inlet electro-hydraulic actuator 13 and the outlet electro-hydraulic actuator 27 are IP56, so that the electro-hydraulic actuators can work effectively when the cabin is soaked.

The inlet electro-hydraulic actuator 13 drives the valve rod 4 to move through a transmission mechanism, and then drives the valve clack 9 to move, so that a stopping function is realized;

the outlet electro-hydraulic actuator 27 drives the valve disc 20 to move up and down through the outlet valve rod 22, so that the valve is stopped;

the two valves are sealed simultaneously, and the problem of internal leakage generated by the traditional side valve can be effectively solved.

The flow velocity measuring instrument 15 can monitor the flow velocity passing through the side valve in real time, and the inlet electro-hydraulic actuator 13 and the outlet electro-hydraulic actuator 27 are linked with the control box 29 to realize the quick opening and closing of the valve. When the pipeline is damaged and leaked, the reading of the flow rate measuring instrument 15 is obviously higher than a set value, at the moment, the signal of the flow rate measuring instrument 15 is transmitted to the control box 29, the control box 29 controls the inlet electro-hydraulic actuator 13 and the outlet electro-hydraulic actuator 27 in an over-control mode, the inlet electro-hydraulic actuator 13 and the outlet electro-hydraulic actuator 27 are driven by hydraulic pressure, the response time is short, and the valve is closed quickly.

In the above technical solution, the transmission mechanism at the inlet is connected with an inlet emergency manual operation valve rod 14. The valve can be operated electrically and manually.

In the above technical solution, the outlet valve rod 22 at the outlet is connected with an outlet emergency manual operation valve rod 28. The valve can be operated electrically and manually.

In the above technical solution, a low-noise restrictor 17 is disposed in the flow passage in the valve body 1.

In the above technical scheme, the valve body 1 is provided with an opening for replacing the low-noise restrictor 17, a valve body end cover 26 is arranged at the opening, and a sealing gasket 18 is arranged between the valve body end cover 16 and the low-noise restrictor 17.

In the above technical solution, the valve body end cover 16 and the valve body 1 are connected by a fastening bolt 19.

The low-noise throttler 17 stabilizes the medium, avoids cavitation noise caused by single-hole throttling, and has large valve disc opening position and small valve resistance loss.

In the above technical solution, the sleeve 10 is provided with a stuffing box 11.

In the above technical solution, two O-rings 25 are respectively disposed between the sealing ring 24 and the valve body 1 and between the sealing ring and the outlet valve rod 22.

In the above technical solution, a side connecting flange 30 is arranged at the inlet of the valve body 1, and a pipeline connecting flange 31 is arranged at the outlet of the valve body 1. The side connection flange 30 is connected with the side welding piece, the pipeline connection flange 31 is connected with the system pipeline, and the angle of the pipeline connection flange 31 can be adjusted according to the field installation condition.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.