CN2826100Y

CN2826100Y - Dynamic balancing electric regulating butterfly valve

Info

Publication number: CN2826100Y
Application number: CN 200520102631
Authority: CN
Inventors: 沈新荣
Original assignee: Individual
Current assignee: Hangzhou Zheda Technology Co Ltd
Priority date: 2005-06-02
Filing date: 2005-06-02
Publication date: 2006-10-11
Anticipated expiration: 2015-06-02

Abstract

The utility model discloses a valve, which aims to provide a dynamic balancing electric regulating butterfly valve with a mechanical self-operated pressure difference automatic controlling function. The utility model comprises an angle stroke electric actuator, a valve shaft, a valve plate and a valve body, wherein an actuator component of the angle stroke electric actuator is connected with the valve plate through the valve shaft and the both surfaces of the valve plate are also respectively provided with a flow distributing plat. The electric regulating butterfly valve which uses the flow distributing plates is an electric valve with a regulating characteristic of equal percent, the controlling quality is good and the application is flexible. The utility model has the advantages of small volume, light weight, stable operation, convenient repair, measurement and maintenance and low replacing cost or low maintenance cost.

Description

Dynamic Equilibrium Electrical Control Butterfly Gate

Technical field

The utility model relates to a kind of valve.More particularly, the utility model relates to a kind of Dynamic Equilibrium Electrical Control Butterfly Gate that mechanical self-powering type pressure reduction is controlled function automatically that has.

Background technique

In a large amount of different journey pipe network water system of heating, air-conditioning, system's energy waste, the hydrodynamic noise that causes because of the waterpower imbalance increases and the phenomenon of shortened equipment life exists in a large number.Solving the hydraulically balanced method of complex grid is developed to the design concept of dynamic balance motor-driven modulating valve by mechanical type static equilibrium, mechanical type transient equiliblium.

The import brand dynamic balance motor-driven modulating valve of widely applying is that a class has the electric control valve that mechanical self-powering type pressure reduction is controlled function automatically in essence at present, this import electric control valve that is used for the control of HVAC water system is found through the reality test, its aperture traffic characteristic curve belongs to a class near the linear performance of opening soon, but the energy output control that is applied to the air-conditioner water system heat exchanger is irrational, cause that easily system energy consumption waste and hydrodynamic noise increase, also can cause the oscillatory occurences controlled when serious, make the control system operation be in an unsure state.

The dynamic balance motor-driven modulating valve pressure exploration hole of this import brand generally adopts the complete built-in mode in small aperture, maintenance, measurement and maintenance are very inconvenient, and easily because of in the water impure cause to stop up lose the adjusting control ability, and replacing or maintenance cost are very high.

At the demand of above-mentioned deficiency and domestic practical application, we develop a kind of Dynamic Equilibrium Electrical Control Butterfly Gate that mechanical self-powering type pressure reduction is controlled function automatically that has.

This modulating valve can also be widely applied to adjusting and the control that various fluids flow.

Summary of the invention

Main purpose of the present utility model is to overcome deficiency of the prior art, and a kind of Dynamic Equilibrium Electrical Control Butterfly Gate that mechanical self-powering type pressure reduction is controlled function automatically that has is provided.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model provides a kind of Dynamic Equilibrium Electrical Control Butterfly Gate, comprise angle stroke electric actuator 1, valve shaft 2, valve plate 7 and valve body 11, the power unit of angle stroke electric actuator 1 is connected with valve plate 7 by valve shaft 2, also respectively is provided with a port plate 3 on 7 two faces of described valve plate.

With the described valve shaft 2 corresponding butterfly valve assemblies 8 that also are provided with, be used for fixing angle stroke electric actuator and sealed rotational axle.

Described port plate 3 is the U-shaped structure, is made up of two blocks of wing plates and a fixed plate, has some assignment holes on the wing plate; And be that symmetry center is installed on the valve plate 7 with valve plate 7 axis by fixed plate.

The utility model also comprises stream tube 10 and pressure balance controller 6, and connecting bolt 9 will flow tube 10, valve body 11 and pressure balance controller 6 and link into an integrated entity; Pressure balance controller 6 is connected to stream tube 10 by pilot sound-pipe 4.

The beneficial effects of the utility model are:

1, adopting the motorized adjustment butterfly valve that port plate is housed is a kind of mortor operated valve with equal percent regulating characteristic, and the two ends of motorized adjustment butterfly valve are by the automatic constant that it is poor that the pressure balance controller keep-ups pressure, the energy output of guaranteeing air-condition heat exchanger is linear with the stroke (aperture) of control valve, and controlling performance is good.

2, the utility model is the Dynamic Equilibrium Electrical Control Butterfly Gate that a kind of mechanical self-powering type is realized the pressure reduction independent type, and modulating valve two ends pressure difference can also set by the mechanical spring form again, uses very flexible.

3, the Dynamic Equilibrium Electrical Control Butterfly Gate that utilizes motorized adjustment butterfly valve and pressure balance controller to combine, its volume is little, in light weight, stable.In case the film of pressure balance controller is because of tired damaged, the motorized adjustment butterfly valve as usual can proper functioning.

4, pressure survey to adopt external mode, overhauls, measures and safeguard very conveniently, and replacing or maintenance cost are very low.

Description of drawings

Fig. 1 is the utility model embodiment 1 an electric control valve internal structure schematic representation;

Fig. 2 is the profile schematic representation of pressure balance controller among Fig. 1;

Fig. 3 is the pressure balance controller profile schematic representation of another kind of form among Fig. 1;

Fig. 4 is the adjusting butterfly valve internal structure schematic representation of band port plate among Fig. 1;

Fig. 5 is the working principle schematic representation of Dynamic Equilibrium Electrical Control Butterfly Gate

Fig. 6 is the flow pressure reduction indicatrix of the utility model embodiment 1 under the stroke aperture of different angles (control signal DCOV-DC10V) wherein;

Fig. 7 is the sectional view of port plate among Fig. 1;

Fig. 8 is the plan view of port plate among Fig. 1;

The reference character of each parts is among the figure:

1 jiao of stroke electric actuator, 2 valve shafts, 3 port plates, 4 pilot sound-pipes,

5 pressure measurements are chewed and (are measured P ₁), 6 pressure balance controllers, 7 valve plates,

8 butterfly valve assemblies, 9 connecting bolts, 10 stream tubes, 11 valve bodies

12 fixed plates, 13 assignment holes, 14 wing plates, 15 mounting holes

Embodiment

With reference to figures 1 through 8, will be described in detail the utility model below.

Specific embodiment 1 supplies a kind of Dynamic Equilibrium Electrical Control Butterfly Gate that mechanical self-powering type pressure reduction is controlled function automatically that has, and comprises that motorized adjustment butterfly valve and pressure balance controller two large divisions that port plate is housed form.The pressure balance controller is a standardized product based on mechanical self-powering type principle, is assembled to the Liu Chu that goes out that flows tube 10 by connecting bolt 9, and (measuring pressure P is chewed in the pressure measurement of pressure balance controller 6 ₁) be connected to stream tube 10 by pilot sound-pipe 4, thus realized that its two ends pressure reduction of motorized adjustment butterfly valve that port plate is housed is controlled at steady state value automatically.

The principle of mobile equilibrium of motorized adjustment butterfly valve as shown in Figure 5, as one valve two ends pressure reduction DP=P ₁-P ₃During change at random, utilize the pressure balance controller by changing P ₂-P ₃Difference guarantee DP ₁=P ₁-P ₂Automatic constant is constant.

The motorized adjustment butterfly valve that port plate is housed comprises angle stroke electric actuator 1, valve shaft 2, port plate 3, valve plate 7, butterfly valve assembly 8, and wherein connecting bolt 9 connects into pressure balance controller 6, valve body 11 and stream tube 10-modulating valve of bodyization.Two groups of port plates are installed in the both sides of butterfly valve plate 7 symmetrically by connecting screw, and with the form a whole adjusting valve plate of form of butterfly plate, an end of valve shaft 2 is connected on the valve plate 7; The power unit of angle stroke electric actuator 1 directly is connected on the valve shaft 2, and the adjusting butterfly valve plate of being made up of valve plate 7 and port plate 3 by the valve shaft rotating drive is in order to the aperture (0 °～90 °) of regulating valve integral body; Butterfly valve assembly 8 is used for fixing angle stroke electric actuator and each rotatingshaft of sealing.

Port plate 3 is the U-shaped structure, is made up of two blocks of wing plates 14 and a fixed plate 12; Have the assignment hole 13 of particular design on the wing plate 14, and be that symmetry center is installed on the valve plate 7 with valve plate 7 axis by the mounting hole on the fixed plate 12 15.By the particular combinations of wing plate 14 areas and assignment hole 13 areas, can obtain having the motorized adjustment butterfly valve of equal percent regulating characteristic.Electric actuator belongs to standardized product, by accepting standard control signal (as: the angle stroke of 0～10VDC, 2～10VDC or 4～20mA) generations, 0～90 degree, thereby corresponding 0%～100% relative discharge.As shown in Figure 6.And this flow belongs to the pressure independent type, promptly with one valve two ends pressure reduction DP=P ₁-P ₃Thoroughly irrelevant.

The organic assembling of wing plate 14 areas by port plate 3 and designed assignment hole 13 areas can be adjusted the control characteristic and the through-current capability of butterfly valve.When the motorized adjustment butterfly valve opening of integrated assembling moulding before 45 °, the circulating resistance at modulating valve two ends is mainly worked by the valve plate 7 of butterfly valve; But the motorized adjustment butterfly valve opening of working as integrated assembling moulding is after 45 °, the circulating resistance at its two ends is mainly concured by assignment hole 13 on two groups of port plates 3 and wing plate 14, after two groups of port plate 3 synthesis of the valve plate 7 of butterfly valve and band assignment hole 13, the flow aperture indicatrix of motorized adjustment butterfly valve is continuous, and has the control characteristic of equal percentage.

Utilize spring mechanical self-powering type principle to realize the Dynamic Equilibrium Electrical Control Butterfly Gate of pressure reduction independent type, uses very flexibly, and can guarantee that the pipe network system energy consumption is minimum, noise is minimum and move very stable.

At last, it is also to be noted that what more than enumerate only is specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.

Claims

1, a kind of Dynamic Equilibrium Electrical Control Butterfly Gate, comprise angle stroke electric actuator (1), valve shaft (2), valve plate (7) and valve body (11), the power unit of angle stroke electric actuator (1) is connected with valve plate (7) by valve shaft (2), it is characterized in that, also respectively be provided with a port plate (3) on (7) two faces of described valve plate.

2, butterfly valve according to claim 1 is characterized in that, the corresponding butterfly valve assembly (8) that also is provided with described valve shaft (2) is with fixed angles stroke electric actuator and sealed rotational axle.

3, butterfly valve according to claim 1 is characterized in that, described port plate (3) is the U-shaped structure, is made up of two blocks of wing plates and a fixed plate, has some assignment holes on the wing plate; And be that axis is installed on the valve plate (7) with valve plate (7) by fixed plate.

According to described any one butterfly valve of claim 1 to 3, it is characterized in that 4, also comprise pressure balance controller (6) and stream tube (10), connecting bolt (9) will flow tube (10), valve body (11) and pressure balance controller (6) and link into an integrated entity; Pressure balance controller (6) is connected to stream tube (10) by pilot sound-pipe (4).