CN102150599A

CN102150599A - Low-voltage pressure and flow regulator

Info

Publication number: CN102150599A
Application number: CN2011100452611A
Authority: CN
Inventors: 范世峰; 闫向东
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-02-24
Filing date: 2011-02-24
Publication date: 2011-08-17

Abstract

The invention relates to a low-voltage pressure and flow regulator, which is a T-shaped tee, the longitudinal pipe end is the water inlet end, the two transverse pipe ends are the water outlet ends, a platform is arranged in a longitudinal pipe or on a transverse pipe in the junction of the longitudinal pipe and the transverse pipe, and a flow passage is arranged in the middle of the platform; and a raised support frame is further arranged on the platform, an elastic gasket is covered on the support frame, and a gap is retained between the elastic gasket and the pipe wall. By adopting the low-voltage pressure and flow regulator, uniformity, safety and reliability of irrigation of a drip irrigation system are greatly improved; and the using quantity of field materials of the system is greatly reduced, construction, mounting, operation and management are convenient, the auxiliary pipe rotational irrigation way which is widely used in China is abandoned, large branch rotational irrigation is realized, and a foundation is laid for high-frequency irrigation and automatic drip irrigation.

Description

The low pressure flow regulator

Technical field

The present invention relates to a kind of pipe joint, specifically be meant the adjustable three-way pipe of flow.

Background technology

Drip irrigation is a kind of of water-saving irrigation, has improved efficiency of water application.But drip irrigation system is subjected to the influence of power supply facilities, water pump in the process of operation, and the influence of a large amount of artificial frequent open and close valve door operations, and the pressure in the pipeline changes frequent, and the hydraulic pressure difference of irrigate band inlet is very big, has a strong impact on irrigation uniformity.Therefore, guarantee that irrigate band inlet pressure stable and consistent is a drip irrigation system key problem in technology efficiently.

Abroad, the drip irrigation system flow is even, security of system is reliable in order to make, and the method for taking usually is: pressure regulator valve is installed on arm, by presetting regulated quantity, is guaranteed that arm porch hydraulic pressure is identical.But, on every arm, be connected with 80～100 irrigate bands along the direction of arm current is general equidistant, because the existence of frictional head loss, each irrigator pressure head exists difference (△ Hs) in the sub-district, influence irrigation uniformity, and the price of voltage adjusting device makes the cost of investment of drip irrigation project very high up to 3000～10000 yuan of one cover.At home, what take for head it off is to install auxilliary pipe on the arm additional, the way of carrying out rotation flow by auxilliary pipe.This kind method is that cost exchanges uniformity of irrigation water appilcation for to sacrifice labour intensity, has not only increased the expense of engineering material and construction, and the labour intensity of management is high, does not have the fundamentally uniformity and the reliability problems of resolution system.

Summary of the invention

The technical problem to be solved in the present invention is the defective that overcomes existing drip irrigation technique, provides a kind of drip irrigation joint with self-regulated traffic engineering capability, i.e. the low pressure flow regulator.

In order to solve the problems of the technologies described above, the invention provides following technical scheme:

The low pressure flow regulator is one " T shape " threeway, and its vertical pipe end is a water intake end, and two horizontal pipe ends are the water side, in vertical pipe of described vertical pipe, transverse pipe joint or on the transverse pipe, establishes a platform, establishes a runner in the middle of the platform; Also establish the bracing frame of projection on the platform, be covered with elastomeric pad on the bracing frame, leave the space between elastomeric pad and tube wall.

Support frame as described above is M shape, cross or latticed.

Described platform and bracing frame are positioned on the tube wall of transverse pipe.

One end of tube wall support frame as described above, close is provided with the projection of being close to tube wall, and described projection surrounds into the groove that matches with elastomeric pad, and elastomeric pad places in the groove.

Action principle is: vertically pipe connects the person in charge, water is through vertically pipe inflow, after flowing to elastomeric pad, obstruction because of elastomeric pad, gap location between water own elasticity pad and tube wall flows out, flow through the again gap of bracing frame and elastomeric pad bottom surface, and, after transverse pipe is disperseed, enter the irrigate band after the runner on the platform flows out.Big at current, when hydraulic pressure is high, the pressure that current impose on elastomeric pad is big, elastomeric pad is the indent (bracing frame that has projection between elastomeric pad and the platform under pressure, thereby form a gap, i.e. runner), thereby cause this gap smaller, promptly runner diminishes, the current that thereupon pass the platform runner diminish, and play the purpose of regulating current.When, hydraulic pressure little at current was low, the elastomeric pad pressure was little, be out of shape for a short time, and runner becomes greatly.

Flow regulator of the present invention comprises specifications such as 600L/H, 700L/H, 800L/H, 900L/H, 1000L/H, 1200L/H, 1500L/H and 2000L/H, discharge uniformity CV is 1.46%, cancellation ratio is 96.87%, performance is higher than national standard, and drip irrigation system uniformity of irrigation water appilcation, safety and reliability are greatly improved; The field material usage of system reduces, is convenient to construction and installation and operational administrative significantly, has abandoned the auxilliary pipe rotation flow method of domestic a large amount of uses, has realized big arm rotation flow, for high frequency is irrigated and automatic drip-irrigation is laid a good foundation.The irrigation control mode of pressure regulator valve is installed with external arm compares, the cost that systems control division divides is 1/6-1/10 only, and system homogeneity can improve 1 times.Can make the drip irrigation water-saving more than 50%, joint fertilizer 20%, joint agricultural chemicals 10%, the benefit of volume increase 10～20% further enlarges, and per hectare comprehensively can be saved and be irrigated 750 yuan of costs, and economic results in society are considerable.

If the whole system duty differs greatly or some human factors (as operation improperly), the factors such as fluctuation of electric power, the entire system uniformity is affected, even can't moves.This product will make these interference and influence thoroughly eliminate at the irrigate band front end, make the uniformity of whole system only depend on the performance of irrigate band, thereby the system uniformity of making obtain whole the lifting.

Description of drawings

Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:

Fig. 1 is the stereogram of flow regulator of the present invention;

Fig. 2 is the longitudinal section of the flow regulator of Fig. 1;

Fig. 3 is the agent structure stereogram of the flow regulator of Fig. 1;

Fig. 4 is the vertical view of the main body of Fig. 1;

Fig. 5 is that the A-A of Fig. 1 is to view.

Embodiment

Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.

Embodiment 1

As Fig. 1-shown in Figure 5, the low pressure flow regulator is one " T shape " threeway, comprises main body and bypass two parts, and vertical pipe end 1 of its bypass is a water intake end, is used for connecting being responsible for; Two horizontal pipe ends 2 of main body are the water side, and laterally the outside of pipe end 2 is arranged with nut 3, is used to connect the irrigate band; Vertically on transverse pipe 2 tube walls of pipe 1, transverse pipe 2 joints, establish a circular platform 6, establish a runner 7 in the middle of the platform 6; Also establish the M shape bracing frame 4 of projection on the platform 6; One end of tube wall bracing frame 4, close is provided with the projection 8 of being close to tube wall, and projection 8 surrounds into the groove that matches with elastomeric pad 5, and elastomeric pad 5 places in the groove.

Action principle is: vertically pipe connects the person in charge, water is through vertically pipe inflow, after flowing to elastomeric pad, obstruction because of elastomeric pad, gap location between water own elasticity pad and tube wall flows out, flow through the again gap of bracing frame and elastomeric pad bottom surface, and, after transverse pipe is disperseed, enter the irrigate band after the runner on the platform flows out.

It should be noted that at last: the above only is the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. the low pressure flow regulator is one " T shape " threeway, and its vertical pipe end is a water intake end, two horizontal pipe ends are the water side, it is characterized in that: in vertical pipe of described vertical pipe, transverse pipe joint or on the transverse pipe, establish a platform, establish a runner in the middle of the platform; Also establish the bracing frame of projection on the platform, be covered with elastomeric pad on the bracing frame, leave the space between elastomeric pad and tube wall.

2. low pressure flow regulator according to claim 1 is characterized in that: support frame as described above is M shape, cross or latticed.

3. low pressure flow regulator according to claim 1 and 2 is characterized in that: described platform and bracing frame are positioned on the tube wall of transverse pipe.

4. low pressure flow regulator according to claim 1 and 2 is characterized in that: an end of tube wall support frame as described above, close is provided with the projection of being close to tube wall, and described projection surrounds into the groove that matches with elastomeric pad, and elastomeric pad places in the groove.