The energy storage hydraulic control slow closing check butterfly valve developed by Zhejiang shangou Valve Co., Ltd. has the shut-off function of gate valve at the water pump outlet and the check function of check valve, and integrates mechanical, electrical and hydraulic systems into one, occupying a small area. The accumulator provides the main power source for valve opening and closing, which can be operated on site or controlled by microcomputer. It is mainly installed at the inlet of hydropower station and turbine, used as the inlet valve of water turbine or installed at the pump outlet of various pump stations such as water conservancy, electric power, water supply and drainage. Accumulator type hydraulic control slow closing check butterfly valve is composed of butterfly valve, transmission mechanism, hydraulic station and electric control box.

 

The energy storage hydraulic control slow closing check butterfly valve is an advanced pipeline control equipment at home and abroad. It is mainly installed at the inlet of hydraulic turbine of hydropower station and used as the inlet valve of water turbine; or it is installed at the pump outlet of water conservancy, electric power, water supply and drainage pump stations to replace the function of check valve and gate valve. When working, the valve cooperates with the pipeline host, according to the hydraulic transition process principle, through the preset opening and closing procedures, effectively eliminates the pipeline water hammer, realizes the reliable cut-off of the pipeline, and plays a role in protecting the safety of the pipeline system.
1. It can replace the function of the original electric gate valve and check valve at the outlet of the water pump, and the mechanical, electrical and hydraulic systems are integrated as a whole to reduce the floor space and infrastructure investment.
2. The electro-hydraulic control function is complete, which can be used as an independent system for on-site debugging and control without additional configuration; it can also be used as an equipment unit of distributed control system (DCS), which is centrally managed by the central computer through 1 / 0 channel, and realizes linkage operation with water pump, turbine, bypass valve and other pipeline equipment; it is also equipped with manual function without power supply The valve can also be opened and closed manually to meet the requirements of valve debugging and control under special working conditions.
3. It has good controllability, wide adjustment range and strong adaptability. The electro-hydraulic control system is equipped with multiple adjusting nodes, which can be set according to different pipeline control requirements to ensure that when the conditions of opening and closing the valve are met, the valve can be opened automatically according to the preset time and angle and closed in two stages, fast and slow. It can effectively eliminate the destructive water hammer, prevent the runaway accidents of pumps and turbine units, reduce the pressure fluctuation of the pipe network system, and ensure the safe and reliable operation of the equipment.
4. The sealing pair of the main valve is of three eccentric metal seal or double eccentric rubber seal structure, which is easy to open and close, and has an additional eccentricity to make the valve have good self closing and self sealing performance. The middle and small diameter butterfly plate is designed as streamline flat plate structure, while the large diameter butterfly plate is designed with double plate truss structure, which has small displacement and smooth flow. The flow resistance coefficient of valve is only 0.1 ~ 0.6, which is far less than the flow resistance coefficient of check valve (1.7 ~ 2.6), so the energy saving effect is obvious.

Product Name: energy storage hydraulic control slow closing check butterfly valve
Series: energy storage hydraulic control valve
Nominal diameter: DN 100 ～ dn4000
Nominal pressure: pn2.5 ～ pn64
Applicable media: clear water, sediment water, sea water, reservoir water, oil, gas, etc
Medium temperature: ≤ 80 ℃, valve opening time: 3 ~ 120 seconds (adjustable)
Valve closing time: 3 ~ 120s (adjustable)
Power supply: AC380V
Control power supply: AC220 V, DC 220 V, DC 110 V or DC 24 v
Remote control: open valve, close valve, stop
Remote signal: passive switch signal, 4-20mA analog valve position feedback signal

1. The product is mainly composed of valve body, gear rack transmission box, hydraulic device, electrical control box and other parts
2. The valve body is composed of valve body, butterfly plate, valve rod, sliding bearing, seal and other parts.
3. Accumulator type hydraulic control slow closing check butterfly valve is generally arranged horizontally or vertically according to user requirements.
4. Transmission mechanism is mainly composed of gear box, gear, rack and other connections, transmission parts, is the main actuator of hydraulic power switch valve.
5. In horizontal arrangement, the transmission mechanism is generally installed in the forward direction, or in the reverse direction according to the user's requirements (that is, the transmission mechanism is located on the other side of the valve).
6. The hydraulic station includes oil pump unit, manual pump, accumulator, solenoid valve, overflow valve, flow control valve, stop valve, hydraulic manifold block, oil tank and other components.
7. The accumulator provides the main power source for the valve opening and closing, the flow control valve regulates the opening and closing time, the relief valve is used as the safety valve of the system, and the stop valve is used as the pressure relief of the whole system.
8. The electromagnetic characteristics of the hydraulic system are: the solenoid valve works when the butterfly valve is powered on, and the butterfly valve is locked after power failure; other action types shall be specified when ordering.
9. The hydraulic system and valve body can be integral or split installation. If the user does not make any special instructions, it is split installation.

5.1 when lifting and transporting, it is not allowed to turn over or put upside down. After unpacking, the butterfly valve shall be transported by crane, and the balance position shall be selected among the four lifting points.
5.2 when the product is stored for a long time, it should be placed in a dry place, sealed at both ends of the inlet and outlet, and coated with antirust oil on the sealing surface. During temporary parking, auxiliary support can be added at the position of external wall panel to maintain stability. If it is not installed for half a year, the hydraulic system must be cleaned and replaced with oil.
5.3 before installation, it is necessary to check whether the parameters of the valve name plate meet the use requirements, clean the valve channel and butterfly plate, check whether there is damage at each part, and whether the connecting bolts of all parts are tight. Confirm the relative orientation of the hydraulic transmission system and the water pump outlet pipe as shown in the figure, and install the valve at the water pump outlet. On the basis of butterfly plate installation, the levelness should be corrected to ensure that the valve shaft does not tilt. The valve foot and auxiliary support are mainly used to ensure the smooth installation and operation of the valve, and should not bear a large amount of axial thrust of the pipeline perpendicular to it; the axial water thrust should be transmitted to the support foundation through the pipeline in front of or behind the valve. Note: the direction on the valve body of the hydraulic control check butterfly valve indicates the pressure bearing direction of the valve. When it is installed at the water pump outlet, the arrow direction on the valve body should be opposite to the water outlet direction of the water pump, and the vertical and horizontal installation of the valve does not affect the effect.