CN201072347Y - Aperture plate throttling means - Google Patents
Aperture plate throttling means Download PDFInfo
- Publication number
- CN201072347Y CN201072347Y CNU2007200858183U CN200720085818U CN201072347Y CN 201072347 Y CN201072347 Y CN 201072347Y CN U2007200858183 U CNU2007200858183 U CN U2007200858183U CN 200720085818 U CN200720085818 U CN 200720085818U CN 201072347 Y CN201072347 Y CN 201072347Y
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- CN
- China
- Prior art keywords
- orifice plate
- fastening bolt
- joint flange
- hole
- chucking dish
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
An orifice plate flow control device is provided for solving the problems that the whole orifice plate flow control device of the prior art is needed to be disassembled during the cleaning or the exchange of the orifice plate. The utility model provides the orifice plate flow control device which comprises a left connection flange (1) and a right connection flange (2) which are connected with fastening bolts (5) and a flow control orifice plate (3) arranged between the connection flanges as well as a locking disc (4). A connection end (11) of a straight tube at the left side of the left connection flange runs out of a central hole (42) of the locking disc and arc-shaped holes (41) are cut on the location on the locking disc and opposite to the fastening bolt; the hole diameter of one end of the arc-shaped hole is larger than the outer diameter of the head of the fastening bolt and the hole diameter of the other end of the arc-shaped hole is larger than the outer diameter of the fastening bolt rod and smaller than the outer diameter of the fastening bolt head; the fastening bolt runs through the arc-shaped hole on the locking disc and is locked at the small hole end of the arc-shaped hole. By adopting the structure, the utility model realizes convenient disassembly and assembly of the orifice plate.
Description
Technical field
It is the restriction device of restricting element with the orifice plate that the utility model relates to a kind of.
Background technology
Throttle orifice plate apparatus generally is made up of parts such as throttling orifice plate, pressure obtaning device and joint flanges.Its measuring principle is: when the fluid that is full of pipeline is flowed through orifice plate, will produce local contraction, a fluid stream is concentrated, flow velocity increases, and static pressure reduces, so it is poor to produce a static pressure before and after orifice plate, this pressure differential and flow exist certain functional relation, and flow is big more, and pressure differential is just big more.
The orifice fitting that in the burner fuel of various heating furnaces, heat-treatment furnace or air duct, uses, the error that the distortion of dust stratification or orifice plate causes measurement result will appear after when using one section, therefore need often to clean or change orifice plate, increased workman's labor capacity and cost.
Be applied to the restriction device of actual production at present, its structure is roughly the same, with two ring flanges of bolt, and perforate pressure on two ring flanges respectively.This structure fabrication is comparatively simple, but when changing orifice plate, throttle orifice plate apparatus integral body (i.e. two ring flanges) need be disassembled, when changing, just must close current gas pipeline for a long time like this, influence the stove internal combustion temperature of heating furnace or heat-treatment furnace.
The utility model content
The problem that the throttle orifice plate apparatus integral demounting need be got off during for cleaning of solution existing in prior technology or replacing orifice plate, the utility model provides a kind of throttle orifice plate apparatus, and it can realize the dismounting and the installation of orifice plate comparatively expediently.
The technical solution of the utility model is as follows: it comprises left joint flange 1, right joint flange 2 and be arranged on throttling orifice plate 3 between the joint flange, described left joint flange 1 is fixedlyed connected by fastening bolt 5 with right joint flange 2, it also comprises chucking dish 4, the straight tube link 11 in described left joint flange 1 left side passes the center pit 42 of chucking dish 4, have arcuation hole 41 with fastening bolt 5 corresponding positions on the chucking dish 4, the aperture of described arcuation hole 41 1 ends is greater than the external diameter of fastening bolt 5 heads, and the aperture of described arcuation hole 41 other ends is greater than the external diameter of fastening bolt 5 bars and less than the external diameter of fastening bolt 5 heads; Described fastening bolt 5 passes the arcuation hole 41 on the chucking dish 4 and is clamped on the small-bore end in arcuation hole 41.It is uniform that arcuation hole 41 on described fastening bolt 5 and the chucking dish 4 is respectively three and circumferencial direction.
The utility model utilizes chucking dish 4 that two ring flanges are bonded together on the basis of existing throttling orifice plate device; Clean or whole restriction device need not be taken apart when changing orifice plate, only need make gripping mechanism turn certain angle, can take out throttling orifice plate, dismantle very conveniently, saved the replacing time simultaneously, improved burning efficiency.
As improvement of the present utility model, the upper end of described throttling orifice plate 3 extend out to the outside of joint flange, the lower surface of described throttling orifice plate 3 has groove 31, and groove 31 is installed on fastening bolt 5 bars and its shape and size match with the shape and size of fastening bolt 5 bars respectively.When replacing or cleaning orifice, groove 31 is installed on fastening bolt 5 bars, guarantees described orifice plate accurate positioning.
As further improvement of the utility model, it comprises that also outside surface is provided with the externally threaded cover 6 that screws, and screws cover 6 and is sleeved on the outside of left joint flange 1 left side straight tube link and is threaded with the internal thread that is provided with on center pit 42 hole walls of described chucking dish 4.During device, after chucking dish 4 described in the utility model is bonded together two ring flanges, can further compress orifice plate, guarantee the orifice plate fixation, and then guarantee the sealing property of this device by screwing cover 6.
The utility model is simple in structure, and production technology is easy, and installation and maintenance is convenient, has the orifice plate of replacing conveniently, rapidly, orifice plate accurate positioning, characteristics such as orifice plate fixation, good seal performance.
Description of drawings
Fig. 1 is a perspective view of the present utility model;
Fig. 2 is an one-piece construction synoptic diagram of the present utility model;
Fig. 3 is that the A of Fig. 2 is to view;
Fig. 4 is the structural representation of throttling orifice plate 3 described in the utility model.
Embodiment
Specify embodiment below in conjunction with Figure of description.
As shown in Figure 1, present embodiment comprises left joint flange 1, right joint flange 2, be arranged on throttling orifice plate 3 and chucking dish 4 between the joint flange, have a pressure tap 10 and No. two pressure taps 20 that are communicated with inner chamber on left side joint flange 1 and the right joint flange 2, described left joint flange 1 is fixedlyed connected by fastening bolt 5 with right joint flange 2, the straight tube link 11 in described left joint flange 1 left side passes the center pit 42 of chucking dish 4, have arcuation hole 41 with fastening bolt 5 corresponding positions on the chucking dish 4, the aperture of described arcuation hole 41 1 ends is greater than the external diameter of fastening bolt 5 heads, and the aperture of described arcuation hole 41 other ends is greater than the external diameter of fastening bolt 5 bars and less than the external diameter of fastening bolt 5 heads; Described fastening bolt 5 passes the arcuation hole 41 on the chucking dish 4 and is clamped on the small-bore end in arcuation hole 41.During assembling, fastening bolt 5 installs by the large aperture end in arcuation hole 41, rotates chucking dish 4 afterwards, and the small-bore end in arcuation hole 41 blocks the fastening bolt head, and with angle of gripping mechanism rotation, it is locked to be about to whole device.It is uniform that arcuation hole 41 on described fastening bolt 5 and the chucking dish 4 is respectively three and circumferencial direction.
Preferably, the upper end of described throttling orifice plate 3 extend out to the outside of joint flange, and the lower surface of described throttling orifice plate 3 has groove 31, and groove 31 is installed on fastening bolt 5 bars and its shape and size match with the shape and size of fastening bolt 5 bars respectively.When replacing or cleaning orifice, groove 31 is installed on fastening bolt 5 bars, and groove 31 forms positioning relation with fastening bolt 5 bars, and throttling orifice plate 3 is installed accurately.
Further preferentially, it comprises that also outside surface is provided with the externally threaded cover 6 that screws, and screws cover 6 and is sleeved on the outside of left joint flange 1 left side straight tube link and is threaded with the internal thread that is provided with on center pit 42 hole walls of described chucking dish 4.During assembling, after chucking dish 4 described in the utility model is bonded together two ring flanges, can further compress orifice plate, guarantee the orifice plate fixation, and then guarantee the sealing property of this device by screwing cover 6.
In addition, the outer cylinder surface of described chucking dish 4 is provided with groove 43; The described outer cylinder surface that screws cover 6 is provided with groove 61.The groove that utilizes patent spanner chucking to be set up is realized chucking dish 4 and the spinning in and out that screw cover 6; Be, described groove can be multiple shape with being appreciated that, as long as the use needs that satisfy easy accessibility are all in the protection domain of this patent.Left side joint flange 1 is provided with the screw thread that is connected with straight tube with right joint flange 2, can be connected with flow conduit, when needs clean or change throttling orifice plate 3, chucking need be coiled 4 and get final product by opposite spin.
Inventive point of the present utility model is, when changing throttling orifice plate, no longer needs whole throttle orifice plate apparatus integral demounting is got off, and throttling orifice plate can be extracted out and only need turn gripping mechanism gently; After the throttling orifice plate cleaning or changing, insert between two clamping flanges, the locating slot on the orifice plate can be accurately positioned in the fixed position with orifice plate; Utilize gripping mechanism orifice plate fixedly can be tightened, sealing anti-corrosive rubber circle is arranged at the surface of contact of two clamping flanges and orifice plate, can be with well chucking and sealing of orifice plate, and don't can make the orifice plate distortion.
The utility model manufacture craft is simple, cost is low, can be widely used in the place that throttling orifice plate is used in industry such as metallurgy, petrochemical industry, has boundless market outlook.
Should be noted that, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, all should be encompassed in the middle of the claim scope of the present utility model.
Claims (6)
1. throttle orifice plate apparatus, it comprises left joint flange (1), right joint flange (2) and be arranged on throttling orifice plate (3) between the joint flange, described left joint flange (1) is fixedlyed connected by fastening bolt (5) with right joint flange (2), it is characterized in that it also comprises chucking dish (4), the straight tube link (11) in described left joint flange (1) left side passes the center pit (42) of chucking dish (4), chucking dish (4) is gone up and the corresponding position of fastening bolt (5) has arcuation hole (41), the aperture of described arcuation hole (41) one ends is greater than the external diameter of fastening bolt (5) head, and the aperture of described arcuation hole (41) other end is greater than the external diameter of fastening bolt (5) bar and less than the external diameter of fastening bolt (5) head; Described fastening bolt (5) passes the arcuation hole (41) on the chucking dish (4) and is clamped on the small-bore end in arcuation hole (41).
2. a kind of throttle orifice plate apparatus according to claim 1, it is uniform to it is characterized in that arcuation hole (41) on described fastening bolt (5) and the chucking dish (4) is respectively three and circumferencial direction.
3. a kind of throttle orifice plate apparatus according to claim 2, it is characterized in that the upper end of described throttling orifice plate (3) extend out to the outside of joint flange, the lower surface of described throttling orifice plate (3) has groove (31), and groove (31) is installed on fastening bolt (5) bar and its shape and size match with the shape and size of fastening bolt (5) bar respectively.
4. according to claim 1,2 or 3 described a kind of throttle orifice plate apparatus, it is characterized in that it comprises that also outside surface is provided with the externally threaded cover (6) that screws, screw cover (6) and be sleeved on the outside of left joint flange (1) left side straight tube link and be threaded with the internal thread that is provided with on center pit (42) hole wall of described chucking dish (4).
5. a kind of throttle orifice plate apparatus according to claim 4 is characterized in that the outer cylinder surface of described chucking dish (4) is provided with groove (43).
6. a kind of throttle orifice plate apparatus according to claim 4 is characterized in that the described outer cylinder surface that screws cover (6) is provided with groove (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200858183U CN201072347Y (en) | 2007-07-11 | 2007-07-11 | Aperture plate throttling means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200858183U CN201072347Y (en) | 2007-07-11 | 2007-07-11 | Aperture plate throttling means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201072347Y true CN201072347Y (en) | 2008-06-11 |
Family
ID=39550905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200858183U Expired - Fee Related CN201072347Y (en) | 2007-07-11 | 2007-07-11 | Aperture plate throttling means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201072347Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338396A (en) * | 2011-07-12 | 2012-02-01 | 陈寅明 | Ignition device of cutting torch |
| CN103822673A (en) * | 2013-12-11 | 2014-05-28 | 德阳市迪信佳阀门制造有限公司 | Valve-type orifice plate throttling device |
| CN108709029A (en) * | 2018-08-06 | 2018-10-26 | 常州奥特斯丹智能装备科技有限公司 | A kind of flange arrangement |
-
2007
- 2007-07-11 CN CNU2007200858183U patent/CN201072347Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338396A (en) * | 2011-07-12 | 2012-02-01 | 陈寅明 | Ignition device of cutting torch |
| CN103822673A (en) * | 2013-12-11 | 2014-05-28 | 德阳市迪信佳阀门制造有限公司 | Valve-type orifice plate throttling device |
| CN103822673B (en) * | 2013-12-11 | 2016-04-27 | 德阳市迪信佳阀门制造有限公司 | Valve-type orifice-plate restriction device |
| CN108709029A (en) * | 2018-08-06 | 2018-10-26 | 常州奥特斯丹智能装备科技有限公司 | A kind of flange arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080611 Termination date: 20130711 |