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Emergency flap valve

A tongue valve and valve body technology, applied in the field of emergency tongue valves in submarine ballast water tanks, can solve the problems that the valve disc cannot be pressed and closed, the power demand for opening and closing is large, and the valve cannot be closed tightly, etc., and achieves good anti-aging ability, The effect of relatively flexible and easy operation

Active Publication Date: 2019-10-01
CHINA SHIP DEV & DESIGN CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing ballast tank emergency tongue valve and its transmission device have the following problems in actual use: During the working process of the emergency tongue valve transmission device, the transmission shaft and the rotating arm adopt a threaded slider connection mechanism, and the two will be at the hinge point. The valve cannot be closed tightly due to falling off. In addition, due to the unreasonable structural design of the transmission device, the emergency tongue valve has a large demand for opening and closing power, and the valve disc cannot be closed tightly.

Method used

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with accompanying drawing.

[0022] like figure 1 As shown, this embodiment provides an emergency tongue valve, including a valve body 5 , a seat 7 , a valve disc assembly, and a valve seat 11 . The valve body 5 passes through and is fixed in the connecting flange 6 , the connecting flange 6 is fixedly installed on the support 7 , and the support 7 is fixed on the pressure-resistant shell. The valve disc assembly includes a valve disc 14, a ball head 16, a ball sleeve 15, a pressure ring, and a T-shaped sealing ring 12. The valve disc 14 and the ball head 16 are limitedly connected by the ball sleeve 15. It is tight on the disc surface of the valve disc 14, and is sealed with the valve seat 11 through the O-ring 17. The valve seat is fixed on the emergency tongue valve coaming plate, wherein the emergency tongue valve coaming plate and the pressure-resistant shell form a A certain angle setting. It ...

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Abstract

The invention discloses an emergency flap valve. The emergency flap valve comprises a valve body, a supporting seat, a valve plate assembly and a valve seat, wherein the valve body is mounted on the supporting seat; the valve plate assembly is matched with the valve seat. The emergency flap valve is characterized by further comprising a transmission device assembly; the transmission device assembly comprises a force applying mechanism, a swinging rotating mechanism and a rocker arm; the force applying mechanism and the valve body are arranged in a sealing manner; the force applying mechanism penetrates through the valve body and supplies driving force to the swinging rotating mechanism; the tail end of the swinging rotating mechanism is hinged with the rocker arm; and one end of the rockerarm is fixedly connected to the valve plate assembly while the other end of the rocker arm is hinged with the valve seat. The emergency flap valve is convenient to operate and remains zero leakage within certain underwater depth range; the transmission device is adaptive to the deformation of a ship body structure; a sealing material is resistant to abrasion, and high in ageing resistance; partsof hinging points are flexibly oppositely moved and are prevented from falling off.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to an emergency tongue valve for submarine ballast water tanks. Background technique [0002] The emergency tongue valve is used in ballast water tanks without sea valves, as the second lock of the main ballast water tank vent valve, and urgently closes the ballast water tank vent if the vent valve is damaged. [0003] The existing ballast tank emergency tongue valve and its transmission device have the following problems in actual use: During the working process of the emergency tongue valve transmission device, the transmission shaft and the rotating arm adopt a threaded slider connection mechanism, and the two will be at the hinge point. The valve cannot be closed tightly due to falling off. In addition, the unreasonable structural design of the transmission device of the emergency tongue valve results in a large demand for opening and closing power, and the valve disc cannot be c...

Claims

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Application Information

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IPC IPC(8): F16K31/60F16K31/50F16K31/44F16K37/00F16K1/48F16K1/46
CPCF16K1/465F16K1/48F16K31/44F16K31/50F16K31/60F16K37/00
Inventor 杨珍张军军李志印彭文波
Owner CHINA SHIP DEV & DESIGN CENT
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