CN202834267U

CN202834267U - Watering constant flow valve

Info

Publication number: CN202834267U
Application number: CN 201220518584
Authority: CN
Inventors: 卫俊杰; 周凯; 鲁勇
Original assignee: RENQIU NORTH CHINA PETROLEUM TONGYUN PETROLEUM MACHINERY CO Ltd
Current assignee: RENQIU NORTH CHINA PETROLEUM TONGYUN PETROLEUM MACHINERY CO Ltd
Priority date: 2012-10-11
Filing date: 2012-10-11
Publication date: 2013-03-27
Anticipated expiration: 2022-10-11

Abstract

A watering constant flow valve comprises a constant-voltage device and a valve body. A valve core is installed in a valve clack so that a cylinder on the upper portion of the valve core penetrates through a pipeline channel on the upper portion of the valve clack. The cylinder is fixedly connected with the top portions of bellows through screws, and the constant-voltage device is formed and installed in the valve body. A special-shaped valve clack and a control handle are of a whole structure. The whole structure is sleeved on the upper portion of the constant-voltage device. The control handle penetrates through a valve cover, and the valve cover is connected with the valve body through threads. Running water in a pipeline inflow through a water inlet, then enters into the constant-voltage device through a drain hole, penetrates through the valve core, outflows through a water outlet, and enters into the pipeline. The opening degree of the valve core and the valve clack are automatically controlled through the constant-voltage device so that flow of the water flow is controlled. Differential pressure of the water inlet and the water outlet is constant. The flow is not influenced by the change of the differential pressure of a valve and kept constant automatically. As indicated in figure1, figure 2, a control panel is installed on the top portion of the valve cover, and an indicator and the control handle are connected and fixed through jackscrews. Scales of the control panel directly correspond to flow values, and required flow can be obtained simply and quickly through adjustment of the scales.

Description

A kind of water mixing permanent-flow valve

Technical field

The utility model relates to a kind of permanent-flow valve, particularly a kind of water mixing permanent-flow valve.Belong to a kind of permanent-flow valve of controlling watering quantity.

Background technique

At present, in the known permanent-flow valve, mostly exist complex structure, cost is high, and volume is large, runs in the unstable water mixing situation, can not keep reaching the stable of individual well watering quantity, thereby cause the shortcoming such as watering quantity imbalance.

Summary of the invention

For the deficiency that the problems referred to above exist, it is compact that the purpose of this utility model provides a kind of structural design, and volume is little, the deficiency that can keep the reasonable and stable water mixing permanent-flow valve of watering quantity to exist to overcome prior art.

The technical solution of the utility model is as follows: a kind of water mixing permanent-flow valve, constant with the pressure reduction before and after the constant-voltage equipment automatic flow control regulating valve, the impact that makes the flow that passes through not changed by valve front and back pressure reduction keeps constant automatically.The direct corresponding flow value of valve scale is regulated scale and can be obtained quickly and easily required flow.

Spool (3) is enclosed in the flap (4), make the cylindrical body on spool (3) top pass the pipe passage on flap (4) top, be connected with bellows (2) top and be screwed, thereby composition constant-voltage equipment, described constant-voltage equipment are installed in the valve body (5).

Abnormity flap (1) is integrative-structure with control handle (10), and described integrative-structure is enclosed within constant-voltage equipment top.

Control handle (10) passes valve gap (13), and valve gap (13) is threaded with valve body (5).

Water intake (7) is communicated with water passage hole (9) and constant-voltage equipment and spool (3) and water outlet (8) water route respectively.

Control panel (6) is installed in valve gap (13) top, and pointer (11) is connected with control handle (10) and fixes by jackscrew.

The utlity model has following characteristics: can regulate and stable watering quantity.In the situation of the unstable water mixings such as the fluctuation of water mixing system pressure, offset well pressure surge, the fluctuation of this well back pressure, the water yield of process water mixing permanent-flow valve is constant, thereby reaches the individual well watering quantity rationally with stable, has effectively eradicated the situation of watering quantity imbalance.

Description of drawings

Fig. 1 is control panel schematic representation of the present utility model;

Fig. 2 is constant flow device sectional drawing of the present utility model.

1 special-shaped flap, 2 bellowss, 3 spools, 4 flaps, 5 valve bodies, 6 control panels, 7 water intakes, 8 water outlets, 9 water passage holes, 10 control handles, 11 pointers, 12 flange holes, 13 valve gaps among the figure.

Embodiment

As shown in Figure 2, spool 3 is enclosed in the flap 4, makes the cylindrical body on spool 3 tops pass the pipe passage on flap 4 tops, is connected with bellows 2 tops and is screwed, and forms constant-voltage equipment, and described constant-voltage equipment is installed in the valve body 5.

Abnormity flap 1 is integrative-structures with control handle 10, and described integrative-structure is enclosed within constant-voltage equipment top,

Control handle 10 passes valve gap 13, and valve gap 13 is threaded with valve body 5.

Flowing water in the pipeline flows into through water intake 7, enters in the constant-voltage equipment by water passage hole 9 again, passes spool 3 and flows out through water outlet 8, enters pipeline again.

With the aperture of constant-voltage equipment autocontrol valve core 3 with flap 4, thereby the flow of control current makes the pressure reduction of water intake 7 and water outlet 8 constant, and the impact that the flow that passes through is not changed by valve front and back pressure reduction keeps constant automatically.

As shown in Figure 1 and Figure 2, control panel 6 is installed in valve gap 13 tops, and pointer 11 is connected with control handle 10 and fixes by jackscrew.

The direct corresponding flow value of the scale of control panel 6 is regulated scale and can be obtained quickly and easily required flow.

A side and downside at valve body 5 are provided with flange hole 12, are used for being connected with piping flange.

Hydraulic pressure in pipeline increases, and bellows 2 pressurizeds increase backward upper movement, the water channel of crossing by spool 3 and flap 4 is diminished, thereby keep the pressure of water outlet constant; When the hydraulic pressure in the pipeline diminished, bellows 2 moved down, and the water channel of crossing by spool 3 and flap 4 diminishes, and makes the hydraulic pressure that flows out water outlet 8 keep constant.

Claims

1. water mixing permanent-flow valve, it is characterized in that, spool (3) is enclosed in the flap (4), make the cylindrical body on spool (3) top pass the pipe passage on flap (4) top, be connected with bellows (2) top and be screwed, form constant-voltage equipment, described constant-voltage equipment is installed in the valve body (5).

2. valve according to claim 1 is characterized in that, special-shaped flap (1) is integrative-structure with control handle (10), and described integrative-structure is enclosed within constant-voltage equipment top;

Control handle (10) passes valve gap (13), and valve gap (13) is threaded with valve body (5);

Water intake (7) is communicated with water passage hole (9) and constant-voltage equipment and spool (3) and water outlet (8) water route respectively;