CN2128329Y

CN2128329Y - Opening-closing control pipeline and apparatus for gate valve

Info

Publication number: CN2128329Y
Application number: CN 91221421
Authority: CN
Inventors: 曲书增
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-07-28
Filing date: 1991-07-28
Publication date: 1993-03-17
Anticipated expiration: 2001-07-28

Abstract

The utility model relates to an automatic opening-closing control pipeline and apparatus for a gate valve. A hydraulic four-way valve, a reversal device and an electromagnetic two-way valve are arranged on the control pipeline of a gate valve. At the same time, the hydraulic four-way valve is provided with a hydraulic cylinder; the hydraulic cylinder is provided with a piston; a valve block with the both ends in conical shape and a spring are arranged on the valve spindle; the reversal device is arranged on the lower part of the gate valve in water inlet direction; the reversal device comprises an impeller with a shaft, a flange, a crank, etc. The utility model can surely be stably used in the water with chlorine and fouling products for a long time, thereby, overcoming the defects exist in the general-purpose automatic opening-closing control system for a gate valve. The utility model has the advantages of simple structure, electrical energy saving and wide applied range.

Description

Opening-closing control pipeline and apparatus for gate valve

The utility model relates to a kind ofly can make device therefor on pipeline that gate valve opens and closes automatically usefulness and this pipeline.

Gate valve plays an important role in town water supply.Can close automatically when gate valve is open at unexpected power failure water pump stall automatically behind starting mode of pump,, particularly protect pipeline not to be damaged, significance is arranged alleviating labor strength.General a kind of double speed self closing stop valve in the city tap-water water supply network, can be automatically opening and closing valve at a slow speed soon.It is malfunctioning easily that but this valve exists the rubber eardrum and the Returnning spring of electromagnetism two-position four-way valve, pod apertures is blocked easily, electromagnetic coil is that DC electrical source needs drag flow, and waste shortcomings such as electric energy because of and the long-term livewire work of solenoid valve easily malfunctioning in long-term moist pump house work, therefore make the gate valve pilot line malfunctioning, make gate valve lose the function of closing automatically and opening.

The purpose of this utility model provides the pipeline that a kind of gate valve opens and closes automatically usefulness, and the work steady in a long-term of this pipeline energy can not damage because of have chlorion and the pollutant in the water.

The another one purpose provides the special device on a kind of this pipeline in addition, so that reach the requirement of this pipeline long-term stable operation.

By following measure, can guarantee to reach this practical purpose.

On the gate valve pilot line, hydraulic pressure four-way valve, reserve motion device and electromagnetism Twoway valves are installed.

Can see that from Fig. 1 and Fig. 3,5 reserve motion device 8 is installed in the bottom influent side direction of gate valve 1, the hole 43 on the flange of reserve motion device 8 joins with water pipe 9, joins through ball valve 11 and water pipe 14 again.The angle of reserve motion device crank 42 will be aligned with knob valve 7 switches and be matched.

Can see that from Fig. 4 hydraulic pressure four-way valve 5 is by valve body 29 right valve barrels 30 valve rods 31 in flange 27 left valve barrels 28, and the bolt and nut composition, also have oil hydraulic cylinder 15 simultaneously, and piston 32 is arranged at oil hydraulic cylinder 15, in order to seal, be equipped with seal ring 33 on the piston 32.Valve rod 31 just connects that a valve body also has one section 15 li of oil hydraulic cylinders simultaneously, is fixed on the valve rod 31 being equipped with spring 35, spring 35 usefulness spring cappings 34 and nut on this section valve rod.Valve rod 31 partly is equipped with valve in valve body stifled, be equipped with between left valve barrel 28 and the middle valve body 29 valve stifled 36, between middle valve body 29 and right valve barrel 30, be equipped with valve and block up 37.Valve is stifled to be the Cylinder that a two is the garden taper.

Accompanying drawing 5 has provided the structure of reserve motion device 8, and it is made up of flange 38 axle sleeves 39, seal ring 40 tape spool impeller, 41 cranks 42 and fastening piece.Screw 43 is arranged on flange 38, and this is used for water receiving pipe 9; Tape spool impeller 41 end on axle is fixed a block plate, the other end fixed crank 42; When reserve motion device 8 was installed in the gate valve bottom, the plate of tape spool impeller 41 became 60 ° angle along water (flow) direction and with level.Like this when have a power failure suddenly, the water pump stall, the water of pipe network rotates and makes the axle rotation thereby will drive plate when refluxing, and crank 42 is rotated.Simultaneously, crank 42 is a kind of states of sd so, and when the current proper flow, it can not contact with near the push buttonvalve 7 being positioned on, and it is wanted to run into push buttonvalve 7 and makes its action when the water adverse current, opens, so that draining pressure release from water pipe 9.

The utility model working procedure is like this:

Make the hydraulic pressure four-way valve that one dedicated hydraulic cylinder is arranged again, piston is housed in the cylinder, and on the four-way valve valve rod, load onto the stifled and Returnning spring of valve, and by being drilled with the reserve motion device that screw and tape spool impeller and crank are formed on the flange.There have been these just can realize the purpose of this utility model.

On the used gate valve of town water supply, use the pilot line that the utility model provides and be used hydraulic pressure four-way valve and the reserve motion device of this pipeline, to bring some benefits like this, Here it is, this pilot line can be steady in a long-term in the water that contains chlorion and pollutant, work, therefore can guarantee that gate valve opens automatically with fast two speed in slow back earlier behind starting mode of pump, and guarantee that when the stall of sudden power water pump gate valve can close with two speed first quick and back slow; Simultaneously can also save electric energy, every gate valve 500KWh that can economize on electricity every year.The utility model also has simple in structure, the characteristics that cost is low.

Solution of the present utility model is further disclosed below by accompanying drawing.

Accompanying drawing 1 is a partly principle schematic of pilot line of the present utility model;

Accompanying drawing 2 is control circuit figure of the present utility model;

Accompanying drawing 3 is the perspective view of pilot line of the present utility model mounting point on gate valve;

Accompanying drawing 4 is a hydraulic pressure four-way valve structural representation of the present utility model;

Accompanying drawing 5 is the utility model reserve motion device structural representation.

From Fig. 1 and Fig. 3,4, can see, hydraulic pressure four-way valve 5 is installed on the pilot line of gate valve, hydraulic pressure four-way valve oil hydraulic cylinder intake-outlet 21 joins with water pipe 14, and water intake 22 joins with water pipe 17, intake-outlet 23 joins with water pipe 16, drain opening 24,26 and water pipe 10 join, and water intake 25 joins with water pipe 2.Electromagnetism Twoway valves 12 1 terminates at that the other end is connected on the water pipe 10 on the water pipe 14.Can see that from Fig. 2 the control coil one of electromagnetism Twoway valves terminates on other line of power supply, the other end is connected on one of three phase mains and goes up mutually.

When the recloser gate valve:

When driving valve:

earlier ball valve

11,3 open, press the electric motor starting button then, pump working, at this moment gate valve influent side high pressure water is through water pipe 9, reach 14 to 15 li of hydraulic pressure four-way valve 5 oil hydraulic cylinders, high pressure water promotes piston 32 and valve stifled 36,37 move to left, gate valve 1 left side press water enters through the water intake 25 of water pipe 2 to four-way valve from four-way valve, flow out from intake-outlet 22, on promoting piston in the gate valve oil hydraulic cylinder, the lower end that water pipe 17 flows to the oil hydraulic cylinder of gate valve 1 moves again, and the water of hydraulic piston upper end is to discharge through water pipe 10 through water pipe 16 again, because throttle valve 4 is arranged in pipeline, therefore gate valve 1 can be earlier with at a slow speed and then with quick unlatching, thereby avoided the generation water hammer.

Shut down when closing valve; press close valve connect button 44 at this moment the coil of electromagnetism Twoway valves 12 have electricity to make valve open; the water that the oil hydraulic cylinder of hydraulic pressure four-way valve 5 is 15 li expands through spring 35 Peng that electromagnetism Twoway valves 12 is discharged pressure release, oil hydraulic cylinder 15 to water pipe 10 through water pipe 14 again; thereby the valve stifled 36,37 that drives on the valve rod 31 moves to right; so just make the water of the hydraulic piston bottom of gate valve 1 arrive water pipe 10 discharges again through water pipe 17; and high pressure water is to enter piston top promotion piston through water pipe 16 again through water pipe 2 to move down, and gate valve 1 is closed.Also be owing to there is the effect of throttle valve 4 to make gate valve earlier with fast, the back to be closing at a slow speed, and when closing fully, stop collar 20 is run into position limit switch 13, and position limit switch action, motor stop.

During the hand switch gate valve:

Drive valve:

open ball valve

3,18 and close the unlatching of

ball valve

11,19 gate valves.

Close valve: ball valve 18 is closed, and ball valve 19 is opened, gate valve is closed.

The pass closed procedure of gate valve during forced outage:

When having a power failure suddenly because of accident; the motor and water pump stall; this moment the aqueous reflux in the water pipe; 8 actions of reserve motion device; make that push buttonvalve 7 is opened, the water of 15 li of oil hydraulic cylinders discharges pressure releases through water pipe 14; spring expands, resets and impel valve stifled 36,37 to move to right then, at this moment repeats autostop and closes closed procedure, and gate valve is closed automatically.

Claims

1, a kind of gate valve of being made up of gate valve, ball valve, pipeline opens and closes pilot line and equipment, it is characterized by: hydraulic pressure four-way valve 5 is housed, reserve motion device 8 and electromagnetism Twoway valves 12 on the gate valve pilot line.

2, pilot line as claimed in claim 1 and equipment, it is characterized by: the water intake 21 and the water pipe 14 of the oil hydraulic cylinder 15 of hydraulic pressure four-way valve 5 join, intake-outlet 22 joins with water pipe 17, intake-outlet 23 joins with water pipe 16, drain opening 24,26 and water pipe 10 join, and water intake 25 joins with water pipe 2.

3, pilot line as claimed in claim 1 and equipment is characterized by: reserve motion device 8 is installed in gate valve 1 bottom influent side direction.

4, as claim 1 and 3 described pilot line and equipment, it is characterized by: the screw 43 and the water pipe 9 of reserve motion device 8 join, and the angle of crank 42 will be aligned with knob valve 7 switches and be matched.

5, pilot line as claimed in claim 1 and equipment is characterized by: the coil one termination power zero line of electromagnetism Twoway valves 12, and the phase in another termination power three-phase firewire, electromagnetism Twoway valves one end joins with water pipe 14 the other ends and water pipe 10.

6, pilot line as claimed in claim 1 and equipment is characterized by: hydraulic pressure four-way valve 5 has hydraulic pressure 15, and oil hydraulic cylinder has piston 32 for 15 li, and valve stifled 36,37 and Returnning spring 35 are installed on the valve rod 31.

7, as claim 1 and 6 described pilot line and equipment, it is characterized by: valve stifled 36 is installed between left valve barrel 28 and the middle valve body 29, and between valve body 29 and the right valve barrel 30, Returnning spring 35 was installed on the valve rod 31 of 15 li of oil hydraulic cylinders during valve stifled 37 was installed in.

8, pilot line as claimed in claim 7 and equipment is characterized by: valve stifled 36,37 is the Cylinder that two ends are the garden taper.

9, pilot line as claimed in claim 1 and equipment is characterized by: be drilled with screw 43 on the flange of reserve motion device 8, be equipped with a tape spool impeller 41 on it.