Height adjustable automatic vent valve

A vent valve and automatic technology, applied in the field of accessories on floating roof tanks, can solve the problems of evaporation loss of volatile oil products, waste of resources, and inability to seal the upper end of the oil product surface, so as to reduce the evaporation loss of oil products, reduce labor, avoid The effect of manual handling

Active Publication Date: 2017-06-09
QINZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The valve cover is set on the top of the valve body, the valve stem is sleeved on the valve body and connected with the valve cover, the floating top is in a supporting state, and the valve stem lifts up the valve cover. The automatic ventilating valve with this structure has the following defects: Finally, the position of the valve stem is fixed, and at this time the height of the automatic vent valve is higher than the height of the floating roof, that is, the upper end of the oil surface cannot be sealed. If the storage tank still needs to maintain this state for a period of time, it will cause easy Evaporation loss of volatile oil, waste of resources

Method used

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Embodiment Construction

[0018] like figure 1 and figure 2 A specific embodiment of the present invention is proposed as shown, the height-adjustable automatic ventilation valve includes a valve body 1 welded on the floating roof, a valve cover 2 arranged at the top of the valve body 1 and a valve sleeve set in the valve body 1 Rod 3, a vertical sleeve 4 is arranged above the valve cover 2, and the sleeve 4 is provided with several positioning holes 5 along the vertical direction, and the valve rod 3 extends to the sleeve after penetrating the valve cover 1 4, and is sealed and connected with the upper end of the casing 4 through the sealing sleeve 6, the valve stem 1 is also provided with a pin hole that can be connected with the positioning hole 5, and the pin hole and the positioning hole 5 pass through the opening Pin 9, bearing pin 10 are fixedly connected.

[0019] There are four positioning holes 5, and the installation height of the lowest positioning hole 5 is 1.2m. The distance between a...

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Abstract

The invention discloses a height adjustable automatic vent valve. The height adjustable automatic vent valve comprises a valve body, a valve deck on the top of the valve body, and a valve rod sleeved inside the valve body. A casing pipe is disposed in the upper portion of the valve deck. A plurality of location holes is disposed in the casing pipe along the vertical direction. The valve rodthrough the back of the valve deckextends to the outside of the casing pipe. The valve rod is connected with the upper end of the casing pipe in sealing mode through a seal cartridge. Apin hole capable of matched connecting with all the location holes is disposed on the valve rod. Asleeve with location holes is disposed in the automatic vent valve. By adjusting the height of the valve rod to change the distance between the automatic vent valve and the baseplate of the storage tank, on one hand the loss of oils evaporation is reduced effectively and on the other hand the check and maintenance is not hampered. The height adjustable automatic vent valve with good practicability is worth to popularize widely.

Description

technical field [0001] The invention relates to an accessory on a floating roof tank, in particular to a height-adjustable automatic ventilation valve. Background technique [0002] Storage tanks are important equipment in oil and gas gathering and transportation systems. With the needs of national crude oil strategic reserves and energy security, crude oil storage tanks are developing towards large-scale development, with a maximum capacity of 15×104m 3 . Storage tanks are usually used to store volatile petroleum products such as crude oil, gasoline or kerosene. According to the characteristics of the tank roof structure, they can be divided into three types: fixed roof storage tanks, floating roof storage tanks, and spherical storage tanks. Floating roof storage tanks are divided into outer floating roof storage tanks and inner floating roof storage tanks. Due to the large size (high volume) of the storage tank, higher requirements are put forward for the design, manufac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D88/34B65D90/00
CPCB65D88/34B65D90/00
Inventor 赖家凤王善忠石海信郝媛媛王爱荣
Owner QINZHOU UNIV
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