Plane sealing self-operated flow control valve
A technology of flow control valve and flat seal, which is applied in the direction of balance valve, valve detail, safety valve, etc., which can solve the problems of increased cost and installation space, large discharge flow, and failure to shut off, so as to achieve good practical application and Promote value and design reasonable effects
Pending Publication Date: 2020-08-07
山西建工申华暖通设备有限公司
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AI Technical Summary
Problems solved by technology
The traditional self-operated flow control valve pays attention to the performance of ensuring the constant flow of the medium, but it cannot guarantee to completely cut off the flow of the medium in the shut-off state, so it cannot achieve the shut-off effect, and the discharge flow is still very large in many cases
In this way, a shut-off valve must be added in the project, which will increase the cost and installation space
Method used
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Embodiment Construction
[0012] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0013] A flat seal self-operated flow control valve, such as figure 1 As shown, including the valve body 1, the inlet of the valve body 1 has a pressure chamber P1 (the cavity of the pressure chamber P1 is used as the inlet of the control valve and has a connecting internal thread), and the outlet of the valve body 1 has a pressure chamber P3 ( The cavity of the pressure cavity P3 is used as the outlet of the control valve and has a connecting internal thread). The upper part of the valve body 1 has an actuator chamber P4, and the lower part has a pressure chamber P2a and a pressure chamber P2b. It communicates through the port II13, the port I12 and the port II13 are located on the same axis, the pressure chamber P2a and the pressure chamber P2b communicate through the port III14; the pressure chamber P2a and the pressure chamber P3 pass thr...
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The invention discloses a plane sealing self-operated flow control valve comprising a valve body (1). A pressure cavity P1 is formed at the inlet position of the valve body (1), and a pressure cavityP3 is formed at the outlet position of the valve body (1); a pressure cavity P2a and a pressure cavity P2b are formed in the lower part of the valve body (1), and the pressure cavity P2a and the pressure cavity P1 communicate with each other through a through hole I (12); the pressure cavity P2b and the pressure cavity P1 communicate with each other through a through hole II (13), and the throughhole I (12) and the through hole II (13) are located on the same axis; the pressure cavity P2a and the pressure cavity P2b communicate with each other through a through hole III (14); and the pressurecavity P2a and the pressure cavity P3 communicate with each other through a fan-shaped hole III (14). The self-operated flow control valve is rational in design, and stable control over flow is achieved; and the self-operated flow control valve has high practical application and promotion values.
Description
technical field [0001] The invention relates to the technical field of control valves, in particular to a flat-sealing self-operated flow control valve applied to heating equipment. Background technique [0002] At present, there are many self-operated flow control valves on the market, which need to meet the corresponding national standards (self-operated flow control valves for heating and air conditioning, GB / T 29735-2013). The valve is a control valve that can maintain a stable flow rate within the range of working pressure difference by relying on its own mechanical action without external power drive of the system. At the same time, the flow rate through the control valve can be accurately known through the flow scale displayed on the valve. Since these two performance characteristics are widely used in the hydraulic balance adjustment of the air-conditioning circulation system and the heating circulation system, the adjustment becomes simple and convenient. [0003]...
Claims
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Login to View More IPC IPC(8): F16K17/32F16K35/00F16K37/00
CPCF16K17/32F16K35/00F16K37/0016
Inventor 刘克勤
Owner 山西建工申华暖通设备有限公司