CN2475995Y

CN2475995Y - Flow controller

Info

Publication number: CN2475995Y
Application number: CN 01221210
Authority: CN
Inventors: 王桂英
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-04-05
Filing date: 2001-04-05
Publication date: 2002-02-06
Anticipated expiration: 2011-04-05

Abstract

The utility model relates to a flow controller in heating and air-condition system, especially a self-force type controller which can balance the flow automatically. The utility model includes an valve body and an automatic controller and a manual controller installed in the valve body. The staff 9 with a staff window 10 of the utility model is spiral fixed on the appose material missive 11. The silk pole 12 assembled in the staff 9 and manual valve stem 1 are connected by the screw thread. The manual regulating wheel 13 is fixed on the silk pole 12 by the half cup head screw 14. The manual valve stem 1 has a guide groove in the longitudinal direction, the correspondent location screw 15 fixed on the staff 9. The utility model has a sewage outlet 17 in the bottom cover 16 installed on the valve body 5.

Description

Self-operated flow controller

The utility model relates to the flow controller in the water circuit systems such as a kind of heating, air-conditioning, particularly a kind of self-operated flow controller of energy self-poise flow.

In waterway pipe systems such as heating, hot water heating, domestic water, ubiquity the hydraulic misadjustment problem, for addressing this problem, guarantees that the water route flow is when pressure reduction changes, can reconcile flow automatically, finally reach constant purpose, in the past few years, the automatic balancing valve of the various structures that release one after another on the market, though these operation valves can reach certain flow equilibrium effect, but still exist some shortcomings, and as: the Control Flow precision is not high, causes performance stable inadequately; Control Flow needs specific purpose tool, troublesome poeration; It is not directly perceived also to exist the Control Flow reading, problems such as blowdown operation complexity.

The purpose of this utility model is intended to overcome the deficiency of prior art, and provides a kind of rational in infrastructure, and manual adjustments is easy and simple to handle, reading is directly perceived, and flow control accuracy height, range of adjustment are big, blowdown self-operated flow controller easily.

The utility model comprises valve body and is installed in valve body interior autocontrol valve and manually operated control valve.The utility model has scale 9 screw fixed of scale window 10 to be added on the material letter 11.Be assemblied between screw mandrel 12 in the scale 9 and the manual opening stem 1 and pass through thread connection.Hand adjustment wheel 13 is fixed on the screw mandrel 12 by half-round head screw 14.Manual opening stem 1 vertically has gathering sill, and Dui Ying location jackscrew 15 is fixed on the scale 9 with it.

The utility model has sewage draining exit 17 on the bottom 16 that is installed in valve body 5.

The utlity model has rational in infrastructurely, manual adjustments is easy and simple to handle, reading is directly perceived, flow control accuracy height, characteristics such as range of adjustment is big, blowdown is convenient.

Accompanying drawing is a structural representation of the present utility model.

Below in conjunction with accompanying drawing, technical solution of the present utility model is further described:

Shown in the figure accompanying drawing, the utility model comprises valve body 5 and the autocontrol valve and the manually operated control valve that are installed in the valve body 5.Autocontrol valve is assembled by parts such as valve rod 2, equal percentage bivalve lobe 3,4, diaphragm 6, springs 7.Manually operated control valve by valve rod 1, flap 8, have the parts such as scale 9 of scale window 10 and add material letter 11 and be assembled.The utility model partly is connected into one by the automatic adjusting part that autocontrol valve constitutes with the manual adjustments that manually operated control valve constitutes, to be divided into P1, P2, three pressure zones of P3 by the flow media that inlet enters in the valve body, the pressure that promptly enters medium in the valve body is P1, through the pressure in the cavity behind autocontrol valve equal percentage bivalve lobe 3,4 restrictions is P2, is P3 through the pressure that reaches the valve outlet place behind the manually operated control valve lobe restriction.The P2-P3 value increases when system pressure increases, and forces diaphragm to drive automatic valve rod 2 and moves down, and turns down the orifice size of automatic valve port, and the valve outlet flow is remained unchanged.The P2-P3 value reduces when system pressure reduces, and forces diaphragm to drive on the automatic valve rod 2 and moves, and opens the big orifice size of valve port automatically, and the valve outlet flow is remained unchanged.The utility model manually operated control valve has partly adopted scale 9 screw fixed that have scale window 10 adding on the material letter 11.Be assemblied between screw mandrel 12 in the scale 9 and the manual opening stem 1 and pass through thread connection.Hand adjustment wheel 13 is fixed on the screw mandrel 12 by half-round head screw 14.Manual opening stem 1 vertically has gathering sill, and Dui Ying location jackscrew 15 is fixed on the scale 9 with it.This structural design has been cancelled original outside housing cover, by being engraved in scale and the corresponding manual opening stem 1 vertical position of moving on the scale window 10, just can read the flow of being controlled at present easily, thereby make the Control Flow reading more directly perceived.In addition, when using manual adjustments, no longer need specific purpose tool,, and drive screw mandrel 12 rotations as long as rotate hand adjustment wheel 13 by hand.Because located jackscrew 15 and its corresponding manual opening stem 1 longitudinally guiding groove effect, manual opening stem 1 promptly is along the longitudinal movement, thereby realize the purpose of Control Flow.It is very convenient to operate.The utility model is installed on the bottom 16 of valve body 5 and also has sewage draining exit 17.When the needs blowdown,, make blowdown very convenient as long as the plug on the sewage draining exit 18 is unloaded and can realize.

Claims

1, a kind of self-operated type flow equilibrium controller, comprise valve body and be installed in valve body interior autocontrol valve and manually operated control valve, scale (9) screw fixed that it is characterized in that having scale window (10) is being added on the material letter (11), be assemblied between interior screw mandrel (12) of scale (9) and the manual opening stem (1) and pass through thread connection, hand adjustment wheel (13) is fixed on the screw mandrel (12) by half-round head screw (14), manual opening stem (1) vertically has gathering sill, and Dui Ying location jackscrew (15) is fixed on the scale (9) with it.

2, self-operated flow controller according to claim 1 is characterized in that being installed on the bottom (16) of valve body (5) and has sewage draining exit (17).