Pilot-operated type pressure adjusting valve
A pressure-regulating, pilot-operated technology, applied in the field of pressure-regulating valves, can solve problems that affect the accuracy and effectiveness of pressure regulation, leakage of fluid use, out-of-control equipment regulation and use, etc., to improve the accuracy of fluid regulation and control, strong installation sealing, Effect of Avoiding Leakage Problems
Pending Publication Date: 2019-10-18
汇正自控阀门集团有限公司
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Problems solved by technology
[0005] The purpose of the present invention is to provide a pilot-operated pressure regulating valve to solve the above-mentioned background technology. The existing pressure regulating valve has a large problem of limited adjustment accuracy in use, so that the working adjustment accuracy is not high, and at the same time, due to the Its adjustable ratio is not high, and it is easy to cause the adjustment and use of the equipment to be out of control due to the pressure problem, which affects the normal adjustment work. Fluid leakage occurs, which affects the accuracy and effectiveness of pressure regulation
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[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0024] see Figure 1-5 , the present invention provides a technical solution: a pilot-operated pressure regulating valve, including a first outer chamber 1, a first air chamber 2, a first elastic partition 3, a first pressure plate 4, a housing 5, and a positioning rod 6 , the first elastic member 7, the sealing ring 8, the pressure port 9, the connector 10, the positioning block 11, the valve stem 12, the elastic flow pipe 13, the first communication pipe 14,...
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The invention discloses a pilot-operated type pressure adjusting valve which comprises a first outer cavity, a flow regulating valve and a communicating valve. A first gas chamber is arranged in the first outer cavity, a shell is fixed to the top of the first outer cavity, a positioning rod is mounted in the middle of the first outer cavity and the shell in a penetrating manner, connecting parts are mounted at the center of the bottom of the first outer cavity in a penetrating manner, an elastic circulating pipe is arranged in the middle of the connecting part, the flow regulating valve and the communicating valve are separately connected to the outer walls of the connecting parts on the upper and lower sides of the elastic circulating pipe, a second gas chamber is arranged in a second outer cavity, an outer tube is mounted at the bottom of the second outer cavity in a penetrating manner, and a valve element is arranged in the outer tube. The pilot-operated type pressure adjusting valve can improve the flow regulating control precision effectively, is high in adjustable ratio to pressure and good in sealing property in use, improves the practicality of the adjusting valve, and avoids using obstacles due to pressure and sealing problems.
Description
technical field [0001] The invention relates to the technical field of pressure regulating valves, in particular to a pilot-operated pressure regulating valve. Background technique [0002] The pressure regulating valve is a simple flow regulating control device, which can intuitively and effectively control the flow of fluid between the valve bodies when in use, effectively eliminate and avoid the flow flow deviation caused by problems such as pressure fluctuations, so that the system pressure is under pressure. When changing, it can effectively maintain the set flow constant and avoid the flow distribution problem, which makes the flow regulation in the pipe network out of control, and the hydraulic transmission is out of balance due to the pressure problem, which affects the flow adjustment and distribution. [0003] However, the existing pressure regulating valves have the following problems in use: [0004] The pressure regulating valve has a big problem with the adjus...
Claims
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Login to View More IPC IPC(8): F16K17/00F16K31/385
CPCF16K17/00F16K31/385
Inventor 李先明谢雄李光明熊文丰邹晓波
Owner 汇正自控阀门集团有限公司