A straight stroke control valve
A valve control, straight stroke technology, applied in the direction of lift valve, valve device, mechanical equipment, etc., to achieve the effect of reducing the residual amount of liquid chlorine, reducing the frequency of replacement, and improving the measurement accuracy
Active Publication Date: 2018-11-13
ZHEJIANG HENGHUA VALVE
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AI Technical Summary
Problems solved by technology
However, the filling and metering of liquid chlorine is a complex process affected by many factors, such as the metering error caused by the type selection and installation error of the filling device itself, the metering error caused by the gas-liquid two-phase evacuation of the filling pipeline, the ambient temperature Measurement errors caused by external vibration interference, etc.
Method used
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Embodiment 1
[0022] Such as figure 1 and figure 2As shown, this embodiment includes a valve body 1 and a valve core. The valve body 1 is provided with a liquid chlorine flow channel, and the two sides of the valve body 1 are provided with an inlet 2 and an outlet 7 respectively connected with the liquid chlorine flow channel. The valve core Including the valve core body 6 and the U-shaped valve seat 4 matched with it, the horizontally placed U-shaped valve seat 4 is installed in the middle of the liquid chlorine flow channel, and the valve seat 4 separates the liquid chlorine flow channel into the first section of the flow channel and the second flow path, the valve core body 6 includes a valve stem 61 and two blocking blocks 62 arranged at intervals on the valve stem 61, and an outer diameter is arranged on the lower end surface of the blocking block 62 along the axial direction of the valve stem 61. The lower conical section 63 is descending, and the conical section 63 is sleeved on th...
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The invention discloses a straight travel control valve. The straight travel control valve comprises a valve body and a valve element; a liquid chlorine runner is formed in the valve body; an inlet and an outlet communicated with the liquid chlorine runner are formed in two sides of the valve body; the valve element includes a valve element body and a valve base; the horizontal U-shaped valve base is mounted at the middle part of the liquid chlorine runner; the valve base separates the liquid chlorine runner into a first section of runner and a second section of runner; an outer diameter conical section is arranged on the lower end surface of a blockage block; communicating cavities are respectively formed in two vertical sections of the valve base; a valve rod vertically penetrates through the two communicating cavities; multiple clamping blocks are arranged on the outer wall of the conical section in the peripheral direction; multiple clamping grooves are formed in the inner walls of the communicating cavities; and a sealing ring is fixed on the lower end surface of the conical section. The straight travel control valve can realize communication and opening / closing of a liquid chlorine storage tank and a conveying tank through a reciprocating motion of the valve rod in the vertical direction, so that the precise flow control of liquid chlorine is quickly realized in the liquid chlorine filling process, and the leakage of the liquid chlorine caused by closure of the liquid chlorine not in time or weak closure precision is prevented.
Description
technical field [0001] The invention relates to a control valve of a liquid chlorine filling system, in particular to a straight stroke control valve. Background technique [0002] In the chemical chlor-alkali production industry, the products involve liquid chlorine and other hazardous chemicals, which are very difficult to sell and fill, and the filling procedures are very complicated; because liquid chlorine is toxic and easy to gasify, once a leak occurs, the disposal When it is not timely or cannot be handled, it will cause serious injury to the person, thereby causing a major safety accident. Therefore, its filling requirements are strict, and safety protection measures must be perfected. When the liquid chlorine tank car is running, the pressure of the tank car will increase with the temperature of the liquid chlorine in the tank car. Once the pressure is too high, the tank car body may explode. The filling factor of any liquid chlorine container shall not exceed 80%...
Claims
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IPC IPC(8): F16K1/44F16K1/36
CPCF16K1/36F16K1/44
Inventor 师洪亮
Owner ZHEJIANG HENGHUA VALVE