FFV intake and exhaust combination valve
A combination valve, intake and exhaust technology, applied in the direction of valve details, multi-way valves, valve devices, etc., can solve the problems of low cost of intake valve, poor switching stability, high comprehensive cost, etc., to save installation space, stable performance, cost reduction effect
Inactive Publication Date: 2018-09-07
ZHUHAI HECA PURIFICATION TECH
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Problems solved by technology
[0004] The existing adsorption dryer realizes actions such as switching the intake air of tower A and tower B and discharging the adsorbent regeneration gas. The air cylinder valve performs the air intake valve with good stability but high cost; the cost of the air intake valve with the shuttle valve structure is relatively low , but its switching stability is slightly worse
The intake and exhaust structure composed of any of the above intake valves plus two discharge two-position two-way solenoid valves requires a large installation space and a relatively high overall cost.
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[0017] like figure 1 , figure 2 and image 3 As shown, in this embodiment, the present invention includes a combined valve body 1, and the combined valve body 1 is provided with a discharge chamber 2, a left cavity 3, a right cavity 4, a small chamber 5, and a left valve plate cavity Body k, right valve plate cavity h and telescopic combined valve stem 10, the left end of the left valve plate cavity k communicates with the right end of the left cavity 3, and the right end of the left valve plate cavity k communicates with the The left end of the small chamber 5 is connected, the right end of the right valve plate cavity h is connected with the left end of the right cavity 4, and the left end of the right valve plate cavity h is connected with the right end of the small chamber 5 Tong, the small chamber 5 is provided with a valve group air inlet 6, the left valve plate cavity k and the right valve plate cavity h are all provided with a tower air inlet x, the telescopic combi...
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The invention discloses an FFV intake and exhaust combination valve and aims to provide an FFV intake and exhaust combination valve which is highly integrated and stable in performance, saves the mounting space and is lower in cost. The FFV intake and exhaust combination valve comprises a combination valve body, wherein a discharge chamber, a left cavity, a right cavity, a small chamber, a left valve block cavity, a right valve block cavity and a telescopic combination valve rod are arranged in the combination valve body; a valve bank intake opening is formed in the small chamber; a tower intake opening is formed in each of the left valve block cavity and a right valve block cavity; one end of the telescopic combination valve rod is arranged in the left cavity, and the other end of the telescopic combination valve rod is arranged in the right cavity; a switching valve block is arranged in each of the left valve block cavity and the right valve block cavity; the switching valve blocks are arranged on the telescopic combination valve rod; an axial opening is formed in the end surface, close to the corresponding switching valve block, of each of the left cavity and the right cavity; aradial opening is formed in the lower end surface of each of the left cavity and the right cavity; and the radial openings are communicated with the axial openings and the discharge chamber. The FFVintake and exhaust combination valve is applied to the technical field of valves.
Description
technical field [0001] The invention relates to a valve, in particular to an FFV type combined intake and exhaust valve. Background technique [0002] At present, there are three ways to exchange air between Tower A and Tower B of the double-tower adsorption dryer: the first is to use a two-position five-way solenoid valve to control two cylinders or one cylinder, and the cylinder pushes and pulls single-sided or double-sided sealing The valve plate blocks and opens the air intake passage to realize the air intake switch between tower A and tower B of the dryer; the second type is a single-sealed ball shuttle valve structure, which communicates with the outside air through the opening of the discharge valve of tower A or tower B, so that There is a pressure difference at both ends of the sealing ball, so that the sealing ball is driven to roll to the tower or one end of the tower connected to the outside air to block the air intake passage, so as to realize the air intake sw...
Claims
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IPC IPC(8): F16K31/06F16K11/24
CPCF16K11/24F16K31/0675
Inventor 陈东
Owner ZHUHAI HECA PURIFICATION TECH