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Emergency cut-off valve for chemical tanker

A technology for chemical tanks and cut-off valves, which is applied in the direction of lifting valves, valve details, valve devices, etc., can solve problems such as valve body blockage, and achieve the effect of ensuring normal discharge and discharge efficiency

Pending Publication Date: 2019-07-19
CHANGZHOU KAIPENG LIQUID FLOW EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an emergency shut-off valve for chemical tank trucks to solve the problem of blockage in the valve body when chemical products are discharged

Method used

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  • Emergency cut-off valve for chemical tanker
  • Emergency cut-off valve for chemical tanker
  • Emergency cut-off valve for chemical tanker

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is some embodiments of the present invention, but not all of them.

[0026] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] Such as Figure 1-6 As shown, an emergency shut-off valve for ...

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Abstract

The invention relates to an emergency cut-off valve for a chemical tanker. The emergency cut-off valve for the chemical tanker comprises an external valve body and an internal valve body arranged on the external valve body, wherein a heating cavity is formed in the joint between the external valve body and the internal valve body, an air inlet joint and an air outlet joint communicating with the heating cavity are arranged at the top outer edge of the external valve body; the inner ring of a flange piece at the top of the external valve body is provided with a sunken step, the bottom of the internal valve body is provided with an annular groove, and the annular groove is formed in the step to form a heating cavity; and the portion, positioned below the flange piece, of the outer side surface of the external valve body is provided with a circle of cutting groove. According to the emergency cut-off valve, the valve body is divided into the internal valve body and the external valve body,the heating cavity is formed between the internal valve body and the external valve body, heating steam can be introduced into the heating cavity, so that chemical products can be heated when discharged, blockage caused by crystallization of the chemical products due to low temperature in the valve body is prevented, and normal discharge and the discharge efficiency of the chemical products are ensured.

Description

technical field [0001] The invention belongs to the technical field of emergency shut-off valves, in particular to an emergency shut-off valve for chemical tank trucks. Background technique [0002] The self-sealing emergency cut-off valve for vehicle-mounted tanks that can meet various types of media is mainly used on tank trucks for transporting chemical media such as petroleum and hazardous chemicals. Among them, the tank trucks used to transport some chemical products are solid at normal temperature, but become liquid after heating. In order to facilitate the discharge of such chemical products from the tank trucks, they need to be heated. When the traditional emergency shut-off valve discharges such chemical products, it cannot heat the sealing surface of the valve body inside the chemical product, and it causes blockage in the valve body and the shedding of the sealing ring due to crystallization, which affects the efficiency of chemical discharge. Contents of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/00F16K31/12F16K31/44F16K49/00F16K27/02
CPCF16K1/00F16K31/12F16K31/44F16K49/00F16K27/02
Inventor 龚锁祥陈国方
Owner CHANGZHOU KAIPENG LIQUID FLOW EQUIP CO LTD
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