CN201233536Y

CN201233536Y - Linear flow regulating apparatus

Info

Publication number: CN201233536Y
Application number: CNU2008200779805U
Authority: CN
Inventors: 邢建栋
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-23
Filing date: 2008-07-23
Publication date: 2009-05-06
Anticipated expiration: 2018-07-23

Abstract

The utility model relates to a linear flow adjustment device. In the device, the upper part of a top-closed middle case body is connected with an upper case body, while the lower part thereof is connected with a lower case body; a driver is supported and connected on the top surface of the upper case body; a transverse tubular fluid channel is arranged at the lower part of the lower case body; connecting flanges are arranged at two ports of the fluid channel; two upright flow guide shields respectively connected with both sides of a pipe wall are arranged in the fluid channel; adjusting core plates for controlling the opening of the fluid channel are mounted on the rear surfaces of the flow guide shields; the upper end of each adjusting core plate connected with an opening adjusting transmission mechanism; the opening adjusting transmission mechanism passes through the top plate of the middle case body and is connected with the driver on the upper case body; and a trimmer is connected on the fluid channel of the lower case body. The utility model has the advantages of short adjustment time, simple adjustment process, as well as rapid, stable and accurate adjustment, and can satisfy working condition requirements of workplaces with linear flow adjustment requirements of aeration tanks, and the like in sewage treatment plants on supply of oxygen.

Description

Linear flow adjusting device

Technical field

The utility model relates to a kind of flow regulator, specifically a kind of linear flow adjusting device.

Background technology

In many workplaces, need carry out rectilinearity to flows such as air demand or oxygen-supplying amounts and regulate.Linear flow adjusting device is a kind of variation of aperture and the regulating device that is varied to proportional relation of flow, under the condition that pressure remains unchanged or pipe diameter is constant of inlet flow body medium, the aperture of regulating device (i.e. the height of Kai Qiing) is proportional with the flow of fluid, by the aperture of control and adjusting linear flow adjusting device, just can carry out the adjusting of flow exactly.But also there is not a kind of linear flow adjusting device simple in structure, easy to adjust, that be suitable for practicality to use at present for relevant enterprise.

The utility model content

The purpose of this utility model just provide a kind of simple in structure, easy to adjust, be suitable for practical linear flow adjusting device, to satisfy the user demand of relevant enterprise.

The utility model is achieved in that a kind of linear flow adjusting device, and this device connects lower box down by connecting casing on the middle casing that binds; The interconnection of the bottom of lower box for passing through for fluid, the dual-side of the import of fluid passage is upright parallel edges; The adjusting central layer of control fluid passage aperture size is housed in the fluid passage, and the driver of regulating central layer is connected on the upper box; In the fluid passage, be connected to and carry out the micro actuator that trace is regulated to the fluid that passes through.

This flow regulator is the shell body that is connected and composed device by three casings in upper, middle and lower.Wherein, upper box is in order to the support and connection driver; The maincenter that middle casing connects as housing, and be the sealing mechanism suitable for reading of lower box, upper box entered to prevent the fluid in the lower box; Lower box is the main body that fluid flow is carried out rectilinearity control---its underpart is the passage that passes through for fluid, and the passage two ends can be provided with joint flange, and its top is to hold the epicoele of regulating central layer, regulates central layer and realizes that in this work space up-down adjustment moves.After driver is received operating instruction, promptly do rotation forward or backwards, drive and regulate central layer rising or decline, to realize the adjusting of fluid flow.

The utility model is designed to upright parallel edges with the dual-side of the import of lower box fluid passage, after the dual-side in an aperture becomes upright parallel edges, the multiple that its orifice area changes all can transform into the variation multiple of aperture upstanding edge, can transform into the variation multiple of the rising or the decline of upper edge.Therefore, after the dual-side of this flow regulator import becomes upright parallel edges, regardless of the lower edge shape of regulating central layer, the variation of the adjusting height that it rises or descend when each the adjusting, just the variable quantity with runner import aperture area forms proportional relation.Key of the present utility model just is this.

Micro actuator is set on the fluid passage, the shape of runner import or area is further carried out trace adjustment according to the actual conditions of fluid media (medium) again, be can guarantee to the fluid flow that is passed through stablize, the guarantee regulated of rectilinearity accurately.

The utility model also can be realized like this: on the architecture basics of above-mentioned regulating device, connect gear train in the upper end of regulating central layer, in the gear train hermetically passing behind the top board of casing, join with driver on the upper box.By the setting of gear train, making can be more accurate to the up-down adjustment control of regulating central layer, makes the structure of the utility model device more reasonable.

This flow regulator, the adjusting of fluid flow can reach rectilinearity adjusting preferably, and adjusting is rapid, stable, accurate, is suitable for practicality, can satisfy the user demand of relevant enterprise.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is side-looking and the partial sectional view of Fig. 1.

Fig. 3-Fig. 5 is the structural representation of three kinds of embodiment of micro actuator.

Embodiment

As shown in Figure 1 and Figure 2, the upper box 4 in this flow regulator, middle casing 6 and lower box 9 are connected successively, the shell body of constituent apparatus.

Upper box 4 is the square box of band top board, under shed, in the end face support and connection of upper box 4 driver 2 is arranged.Driver 2 can adopt existing many revolution Vidacare corps, by with being electrically connected of electric cabinet 1, accept the flow regulation steering order, the rising of regulating and controlling central layer or decline.Upper box 4 can be made into open type or closed.The closed protection that helps the inner box-machine structure; Open type helps maintaining, and is convenient lubricated.Middle casing 6 also is the square box (Fig. 2) of a band top board, under shed.Lower box 9 is that a top is the compound casing that rectangular box, bottom connect a horizontal pipe, the fluid passage 9 that horizontal pipe is a lower box ' and, on the two-port of gas channel, be provided with joint flange.The hypomere of regulating central layer 7 be positioned at fluid passage 9 ', it is suitable for reading that passage is passed on top, is deep in the rectangular box of lower box 9.

Among Fig. 2, the upper end of regulating central layer 7 connects gear train 3.In gear train 3 hermetically passings behind the top board of casing 6, join with the driver 2 of upper box end face.The aperture governor motion that driver 2, gear train 3 and adjusting central layer 7 are formed in the utility model.

As shown in Figure 1 and Figure 2, the fluid passage 9 of lower box ' in be provided with two upright water conservancy diversion retainings 10.The outer side edges of upright water conservancy diversion retaining 10 is the circular arc limit, with fluid passage 9 ' tube wall weld together; The inner side edge of upright water conservancy diversion retaining 10 is a upstanding edge, and two upstanding edges are parallel to each other, and constitute the straight flange import of this regulating device thus.

As seen from Figure 1, the lower edge of regulating central layer 7 is the concave arc limit, is provided with the choked flow of protracting along 12 (Fig. 2) on the concave arc limit, so that upper air forms little backflow at this, the rectilinearity that helps regulating device is regulated.On the 9 ' inwall of the fluid passage of lower box, also be provided with the central layer guiding mechanism, with spacing along giving to the side of regulating central layer 7, displacement before and after preventing.

As shown in Figure 1, lower box fluid passage 9 ' in be connected to and regulate the symmetrical lower baffle plate 13 in lower edge, central layer concave arc limit, also be provided with the choked flow of protracting in the upper edge, arc limit of lower baffle plate along (Fig. 2).

The gear train 3 that aperture is regulated in this flow regulator is the take off and landing strip actuation mechanism of regulating central layer 7, can adopt existing single pole or three bar take off and landing strip actuation mechanism, also can adopt other versions with same function certainly.

Adopt single pole take off and landing strip actuation mechanism, then gear train 3 is exactly an elevating lever.The epimere of this elevating lever is a screw rod, is screwed on the built-in rotating nut of driver 2; Its hypomere is a polished rod, passes the circular hole that is located on middle casing 6 top boards and is rotationally connected with adjusting central layer 7.On the top board circular hole of middle casing 6, seal assembly 5 is housed.Driver 2 controlled rotation drive rotating nut and rotate, and make elevating lever drive adjusting central layer 7 and rise together or descend.This form is applicable on the flow regulator of small-bore fluid passage.

Adopt three bar take off and landing strip actuation mechanism, then gear train 3 includes a screw rod, web joint and two polished rods.The upper end of screw rod is screwed on the built-in rotating nut of driver, and the lower end of screw rod is screwed in the screw at web joint middle part.The upper end of two polished rods is fixedly connected on the both sides of web joint, and its lower end is tapped to be regulated on the central layer 7.Driver 2 drives screw rod and rotates, and makes the web joint lifting thereupon that is threaded, and drives two polished rods simultaneously and rises together or descend with adjusting central layer 7.This gear train can make the lifting of regulating central layer operate steadily, and can reduce the height that flow regulator takes up room.This form is applicable on the flow regulator of larger caliber fluid passage.

Micro actuator in the utility model can have the multiple specific constructive form of electronic or manual two big classifications.

In the embodiment shown in fig. 1, wherein the structure of micro actuator is: the fluid passage 9 of lower box ' in section is regulated at the middle part for the taper or the conical surface adjuster bar 11 is housed; The sealing of the lower end of adjuster bar pass fluid passage 9 ' after, connect lifting control mechanism; In the upper end cross-under guide ring 8 of adjuster bar, guide ring is fixedly connected on the inboard or the outside of fluid passage 9 ' upper wall.As shown in Figure 2, adjuster bar 11 is positioned at 9 ' middle part, fluid passage of regulating central layer 7 back sides, and the lifting of regulating section by the taper or the conical surface changes, and realizes the minor alteration of convection cell passage 9 ' aperture area, thereby realizes linear flow regulation.Adjuster bar 11 carries out lift adjustment by the lifting control mechanism that its lower end joins.The upper end cross-under guide ring 8 of adjuster bar can prevent adjuster bar 9 ' interior rocking in the fluid passage.The adjuster bar lifting control mechanism include electronic and manual two kinds multi-form.

Among Fig. 1, the lifting control mechanism of micro actuator adjuster bar is an electric controller 17.After aperture governor motion regulating and controlling central layer 7 runs to assigned position, if the fluid passage 9 ' interior linear regulation flow of regulating of actual flow offset straight, after electric cabinet 1 is received feedback signal, start electric controller 17, make adjuster bar 11 that a certain amount of rising or decline be arranged, cone by adjuster bar 11 or taper regulate section in the fluid passage 9 ' interior change in location, change the area of fluid passage 9 ' import in right amount, thereby regulated fluid passage 9 ' interior flow makes it to reach the requirement of regulation rapidly.

Lifting control mechanism among Fig. 3 includes driving lever 18 and electric actuator 19, one end of driving lever 18 is socketed in the output shaft end of electric actuator 19, the other end of driving lever and the lower end of the adjuster bar in the micro actuator 11 are hinged, adjuster bar penetrate fluid passage 9 ' perforation place be provided with seal assembly.Behind electric actuator 19 controlled startings, drive driving lever 18 by output shaft and rotate, the adjuster bar 11 that is hinged with the driving lever other end is controlled rising or decline.

Lifting control mechanism among Fig. 4 includes tapped sleeve pipe 20, sleeve pipe 20 is connected the outside, bottom surface of lower box 9, the lower end of the adjuster bar 11 in the micro actuator is threaded in the sleeve pipe 20, the bottom of adjuster bar is the exposed junction of the side's of making tenon axle or six-edged axis, is connected to seal assembly in the lower port of sleeve pipe 20.Pull the exposed junction of adjuster bar bottom with spanner, can make it to rise or descend.

The adjuster bar lifting control mechanism also can adopt the manual control mode that handwheel is installed, and promptly by artificial rotation, the trace that drives adjuster bar 11 rises or descends, and then satisfies this flow regulator the rectilinearity of flow is regulated.

The structure of micro actuator shown in Figure 5 is: regulate in fluid passage 9 ' inflow point on two guide waies at central layer 7 back sides, be fixed with bearing pin 21 respectively in the upper end, on bearing pin, be hinged with tuning plate 22, in the fluid passage 9 ' the tube wall outside be connected to the swing of control tuning plate manually or electric control mechanism.

Shown in Figure 5 is manual control mechanism, promptly be connected to rotating nut 24 at the tuning plate middle part, be connected with the supporter 25 of band seal assembly in the 9 ' tube wall external stability of the fluid passage of correspondence, cross-under is on rotating nut 24 and supporter 25 respectively at the two ends of two-flight screw 23, and two-flight screw 23 is at the exposed junction side of being of supporter 25 outsides tenon axle or six-edged axis.Pull the end exposed junction of two-flight screw 23 with spanner, can drive rotating nut 24 and drive the 22 inside or outwards swings of hinged tuning plate, thereby change the shape of fluid passage 9 ' import in right amount, regulate by fluid passage 9 ' fluid flow, make it to reach the requirement of regulation.

Electric control mechanism can adopt interlinked mechanism to connect two tuning plates 22 of both sides, under a small-sized or micromachine control, realizes the synchronous on-off of two tuning plates.

Claims

1, a kind of linear flow adjusting device is characterized in that this device by connecting casing (4) on the middle casing (6) that binds, connects lower box (9) down; The lateral fluid passage (9 ') of the bottom of lower box (9) for passing through for fluid, the dual-side of the import of fluid passage is upright parallel edges; The adjusting central layer (7) of control fluid passage aperture size is housed in fluid passage (9 '), and the driver (2) of regulating central layer is connected on the upper box (4); In fluid passage (9 ') but in be connected to convection cell and carry out the micro actuator that trace is regulated.

2, linear flow adjusting device according to claim 1, the fluid passage (9 ') that it is characterized in that lower box (9) is the pipe shape, the upright water conservancy diversion retaining (10) that the inflow point in the fluid passage is provided with two outer side edges and the passage tube wall joins, inner side edge is parallel to each other.

3, linear flow adjusting device according to claim 2 is characterized in that regulating the last termination gear train (3) of central layer (7), behind the top board of casing in the gear train hermetically passing (6), joins with driver (2) on the upper box (4).

4, according to claim 1,2 or 3 described linear flow adjusting devices, it is characterized in that described micro actuator is: section is regulated at the middle part for the taper or the conical surface adjuster bar (11) is housed in the fluid passage (9 ') of lower box; After the lower end sealing of adjuster bar passes fluid passage (9 '), connect lifting control mechanism; In the upper end cross-under guide ring (8) of adjuster bar, guide ring is fixedly connected on the inboard or the outside of fluid passage (9 ') upper wall.

5, linear flow adjusting device according to claim 4 is characterized in that described lifting control mechanism is electric controller (17).

6, linear flow adjusting device according to claim 4, it is characterized in that described lifting control mechanism includes driving lever (18) and electric actuator (19), one end of driving lever (18) is socketed in the output shaft end of electric actuator (19), and the lower end of the other end of driving lever and the adjuster bar in the micro actuator (11) is hinged.

7, linear flow adjusting device according to claim 4, it is characterized in that described lifting control mechanism includes tapped sleeve pipe (20), sleeve pipe (20) is connected the outside, bottom surface of lower box (9), the lower end of the adjuster bar in the micro actuator (11) is threaded in the sleeve pipe (20), the bottom of adjuster bar is the exposed junction of the side's of making tenon axle or six-edged axis, is connected to seal assembly in the lower port of sleeve pipe (20).

8, according to claim 1,2 or 3 described linear flow adjusting devices, it is characterized in that described micro actuator is: on two guide waies at fluid passage (9 ') inlet adjusting central layer (7) back side, be fixed with bearing pin (21) respectively in the upper end, be hinged with tuning plate (22) on bearing pin, the tube wall outside of (9 ') is connected to the manual or electric control mechanism of control tuning plate swing in the fluid passage.