CN218863327U

CN218863327U - Three-way shuttle valve for adsorption dryer

Info

Publication number: CN218863327U
Application number: CN202120092382.0U
Authority: CN
Inventors: 谷海东
Original assignee: Shanghai Liuxin Automatic Control Valve Co ltd
Current assignee: Shanghai Liuxin Automatic Control Valve Co ltd
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2023-04-14
Anticipated expiration: 2031-01-14

Abstract

The utility model discloses a tee bend shuttle valve for adsorbing formula desiccator contains: the two sides of the valve body are provided with an air outlet and a regeneration air port, and the two ends of the valve body are respectively provided with a first air inlet and a second air inlet; the valve core is movably arranged in the valve body and can slide in the valve body in a reciprocating manner, and the sliding direction of the valve core is consistent with the connecting direction of the first air inlet and the second air inlet; the first end cover and the second end cover are respectively covered on the first air inlet and the second air inlet. The utility model discloses a reciprocal switching-over case changes the switching-over of the pneumatic medium of pipeline, adopts the screw thread connection to need not the flange and to pressing from both sides to replace welded pipe fitting, the production welding point that has significantly reduced has not only saved installation procedure and man-hour, and is sealed effectual moreover, has improved and has produced property ability and work efficiency.

Description

Three-way shuttle valve for adsorption dryer

Technical Field

The utility model relates to a gas valve technical field, in particular to a tee bend shuttle valve for absorption formula desiccator.

Background

The adsorption dryer adopts advanced chemical technology, saturated compressed air is filtered by using a special molecular sieve for gas purification by utilizing the difference of moisture and air molecular volume, saturated water vapor in the compressed air can be easily adsorbed in the molecular sieve particles, and the molecular sieve is reduced by utilizing a regeneration method, so that the dew point of the compressed air can easily reach-40 ℃. The adsorption dryer achieves the drying effect by pressure change (pressure swing adsorption principle). Since the capacity of air to contain water vapor is inversely proportional to the pressure, a part of the air (called regeneration air) after drying is decompressed and expanded to the atmospheric pressure, the expanded air becomes drier due to the pressure change, then the expanded air flows through a drying agent layer (namely a drying tower which absorbs enough water vapor) to be regenerated, which is not communicated with the air flow, and the dried regeneration air sucks out of the moisture in the drying agent and carries the drying agent out of the dryer to achieve the purpose of dehumidification.

In the prior art, an adsorption dryer generally adopts a butt-clamping one-way valve to realize gas reversing and regeneration gas circulation, but the butt-clamping one-way valve needs frequent switching and is subjected to mixed invasion of moisture and an adsorbent falling object for a long time, so that the butt-clamping one-way valve is easy to damage; in addition, the flange is required to be fixed for installing the clamp check valve, and the flange is required to be welded, so that the existing installation process becomes particularly complex and has long working hours, the sealing effect is often influenced by the welding process, the construction period is influenced, and the product performance is also influenced.

Disclosure of Invention

According to the embodiment of the utility model provides a three-way shuttle valve for absorption formula desiccator contains:

the two sides of the valve body are provided with an air outlet and a regeneration air port, and the two ends of the valve body are respectively provided with a first air inlet and a second air inlet;

the valve core is movably arranged in the valve body and can slide in the valve body in a reciprocating manner, and the sliding direction of the valve core is consistent with the connecting direction of the first air inlet and the second air inlet;

the first end cover and the second end cover are respectively covered on the first air inlet and the second air inlet.

Further, the material of the valve body is 304 stainless steel.

Further, the valve core is made of polytetrafluoroethylene or polytetrafluoroethylene glass fiber.

Further, the first end cover and the second end cover are respectively screwed with the valve body through threads.

Further, the method also comprises the following steps: the first sealing gasket is arranged between the first end cover and the valve body; a second gasket is disposed between the second end cap and the valve body.

Further, the first sealing gasket and the second sealing gasket are O-shaped sealing rings.

Furthermore, the O-shaped sealing ring is made of polytetrafluoroethylene or polytetrafluoroethylene glass fiber.

Further, the first end cover and the second end cover are respectively fixed with the valve body through screws.

According to the utility model discloses a three-way shuttle valve for adsorbing formula desiccator changes the switching-over of pipeline pneumatic medium through reciprocal switching-over case, adopts the screw thread connection to need not the flange and to press from both sides to replace welded pipe fitting, the production welding point that has significantly reduced has not only saved installation procedure and man-hour, and is sealed effectual moreover, has improved product property ability and work efficiency.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology.

Drawings

Fig. 1 is an exploded perspective view of a three-way shuttle valve for an adsorption dryer according to an embodiment of the present invention;

fig. 2 is a front exploded perspective view of a three-way shuttle valve for an adsorption dryer according to an embodiment of the present invention;

fig. 3 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 2.

Detailed Description

The present invention will be further described with reference to the following detailed description of preferred embodiments thereof, which is to be read in connection with the accompanying drawings.

First, a three-way shuttle valve for an adsorption dryer according to an embodiment of the present invention will be described with reference to fig. 1 to 3, which is applied to an adsorption dryer and has a wide application range.

As shown in fig. 1 to 3, a three-way shuttle valve for an adsorption dryer according to an embodiment of the present invention includes a valve body 1, a valve core 2, a first end cap 3, and a second end cap 4.

Specifically, as shown in fig. 1 to 3, an air outlet 11 and a regeneration air outlet 12 are arranged on two sides of the valve body 1, and a first air inlet 13 and a second air inlet 14 are respectively arranged on two ends of the valve body 1. In this embodiment, the valve body 1 is cast from 304 stainless steel, and further, the interior thereof is processed by a boring machine to smooth the inner surface, thereby ensuring smooth sliding of the valve core 2 and reducing friction.

Specifically, as shown in fig. 1 to 3, the valve element 2 is movably disposed in the valve body 1, the valve element 2 can slide in the valve body 1 in a reciprocating manner, and the sliding direction of the valve element 2 is consistent with the connecting direction of the first air inlet 13 and the second air inlet 14. In this embodiment, the valve core 2 is made of teflon or teflon glass fiber, and has good sealing performance.

Specifically, as shown in fig. 1 to 3, the first end cap 3 and the second end cap 4 are respectively disposed on the first air inlet 13 and the second air inlet 14. In this embodiment, use numerical control machining center to process the screw hole of inside threaded connection mouth and fixed end cover to carry out the tapping behind the casting shaping of valve body 1 to twist through the screw thread and connect the fixed of realizing first end cover 3 and second end cover 4 and valve body 1, and further fix first end cover 3 and second end cover 4 through screw 7, need not the flange and to pressing from both sides, replace the welding pipe fitting, the welding point that has significantly reduced has saved installation procedure and man-hour, work efficiency has been improved greatly.

Further, as shown in fig. 1 to 3, the three-way shuttle valve for an adsorption dryer according to an embodiment of the present invention further includes: a first gasket 5 and a second gasket 6, the first gasket 5 being disposed between the first end cap 3 and the valve body 1; a second gasket 6 is arranged between the second end cap 4 and the valve body 1. In this embodiment, the first seal gasket 5 and the second seal gasket 6 are O-ring seals, and further, the O-ring seals are made of teflon or teflon glass fiber, which provides better sealing performance.

When the adsorption dryer works, in the working state of the adsorption dryer, gas enters from the second gas inlet 14, the valve core 2 is pushed to the first gas inlet 13 by the gas entering from the second gas inlet 14, the valve core 2 seals the first gas inlet 13, the pneumatic effect is discharged from the gas outlet 11, and a part of gas is discharged from the regeneration gas port 12; similarly, the gas enters from the first gas inlet 13, the valve core 2 is pushed to the second gas inlet 14 by the gas entering from the first gas inlet 13, so that the valve core 2 seals the second gas inlet 14, the pneumatic force is discharged from the gas outlet 11, and a part of the gas is discharged from the regeneration gas outlet 12. Namely, the whole gas reversing and regenerating are integrally completed.

Above, having described with reference to fig. 1 to 3 and having been used for adsorption dryer according to the utility model discloses a tee bend shuttle valve for adsorbing dryer changes the switching-over of pipeline pneumatic medium through reciprocal switching-over case, adopts the screw thread connection to need not the flange butt clamp to replace the welding pipe fitting, the production welding point that has significantly reduced has not only saved installation procedure and man-hour, and is sealed effectual moreover, has improved product property ability and work efficiency.

It should be noted that, in the present specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising 8230; \8230;" 8230; "does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises the element.

While the invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims

1. A three-way shuttle valve for an adsorption dryer comprising:

the two sides of the valve body are provided with a gas outlet and a regeneration gas port, and the two ends of the valve body are respectively provided with a first gas inlet and a second gas inlet;

2. The three-way shuttle valve for an adsorption dryer of claim 1 wherein the material of the valve body is 304 stainless steel.

3. The three-way shuttle valve for an adsorption dryer of claim 1 wherein the material of the spool is polytetrafluoroethylene or polytetrafluoroethylene fiberglass.

4. The three-way shuttle valve for an adsorption dryer of claim 1 wherein said first end cap and said second end cap are each threadably engaged with said valve body.

5. The three-way shuttle valve for an adsorption dryer of claim 4 further comprising: the first sealing gasket is arranged between the first end cover and the valve body; the second gasket is disposed between the second end cap and the valve body.

6. The three-way shuttle valve for an adsorption dryer of claim 5 wherein the first and second gaskets are O-rings.

7. The three-way shuttle valve for an adsorption dryer of claim 6 wherein the O-ring is polytetrafluoroethylene or polytetrafluoroethylene fiberglass.

8. The three-way shuttle valve for an adsorption dryer of claim 4 wherein the first end cap and the second end cap are each secured to the valve body by screws.