Indoor negative pressure relief device and reservoir management room
A negative pressure, indoor and outdoor technology, applied in the direction of the valve device, valve operation/release device, valve lift, etc., can solve the problems that the piston cannot automatically return and cannot reach the closed state, and achieves easy maintenance, novel structure, and low cost. low effect
Inactive Publication Date: 2017-09-15
WATER RESOURCES RES INST OF SHANDONG PROVINCE
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Problems solved by technology
The underground anti-negative pressure ventilation valve has a simple structure and low cost, which can effectively solve the problem of pipeline negative pressure sucking soil, thereby alleviating the phenomenon of soil clogging the dripper, but its piston cannot automatically return, and cannot reach the closed state under normal non-negative pressure
Method used
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[0029] The present invention will be further described below with reference to the embodiments of the present invention.
[0030] Such as Figure 1-3 As shown, an indoor negative pressure relief device includes a channel and an automatic control valve for indoor negative pressure relief arranged in the channel.
[0031] The channel is arranged on the wall between the indoor and the outdoor, and is used to communicate the indoor and outdoor spaces.
[0032] The automatic control valve for indoor negative pressure relief includes a rotary rod 4, a valve plate 2 and a weight bar 3. The rotating rod 4 is arranged laterally in the passage connecting the indoor and outdoor. The middle part of the valve plate 2 is hinged on the rotating rod 4, so that the middle part of the valve plate 2 can freely rotate along the rotating rod 4. The weight bar 3 is arranged below the valve plate 2. Under the action of gravity of the weight bar 3, the valve plate 2 is in a vertical initial state ...
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The invention discloses an automatic control valve, an indoor negative pressure relief device and a reservoir drainage tunnel management room. The valve comprises a rotating rod, a valve plate and a weight strip, wherein the rotating rod is used for being arranged inside a channel communicating the interior of a room with the exterior of the room, the middle of the valve plate is hinged to the rotating rod, the weight strip is arranged on the valve plate, and the valve plate is in the vertical initial state under the gravity effect of the weight strip, and closes the channel when in the vertical initial state. According to the reservoir drainage tunnel management room, at least one indoor negative pressure relief device is arranged on a wall of the management room. After the indoor negative pressure relief device is installed on the reservoir drainage tunnel management room, damage caused when the drainage tunnel is waterproof and generates negative pressure to the management room is avoided.
Description
technical field [0001] The invention relates to an automatic control valve, an indoor negative pressure relieving device and a management room of a water discharge tunnel of a reservoir, in particular to an indoor negative pressure relief device for the management room of a water discharge tunnel of a reservoir, which can quickly reduce the sudden drop of the gate when the water discharge tunnel is released. Negative pressure is generated, and the chain negative pressure generated leads to the destruction of the management room, which can eliminate the damage of the negative pressure to the management room, avoid property loss and save operating costs. Background technique [0002] The layout of the water discharge tunnel of the reservoir is connected with the space of the management room. When the water discharge hole is discharged, the gate will fall too fast, which will cause a sudden negative pressure, and the negative pressure will be transmitted to the management room i...
Claims
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IPC IPC(8): F16K1/22F16K1/36F16K1/32F16K31/12
CPCF16K1/22F16K1/32F16K1/36F16K31/12
Inventor 贾翠兰徐运海王玉太刘云张立华程素珍安凯军巩向峰郝晓辉王光辉魏兆珍杨大伟刘莉莉
Owner WATER RESOURCES RES INST OF SHANDONG PROVINCE