CN109323281A - Uniform flow orifice type controllable register - Google Patents
Uniform flow orifice type controllable register Download PDFInfo
- Publication number
- CN109323281A CN109323281A CN201811073839.2A CN201811073839A CN109323281A CN 109323281 A CN109323281 A CN 109323281A CN 201811073839 A CN201811073839 A CN 201811073839A CN 109323281 A CN109323281 A CN 109323281A
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- China
- Prior art keywords
- controllable register
- orifice plate
- orifice
- flow
- uniform flow
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N3/00—Regulating air supply or draught
- F23N3/007—Regulating air supply or draught using mechanical means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipe Accessories (AREA)
Abstract
The present invention provides a kind of uniform flow orifice type controllable registers.For existing controllable register flow-disturbing it is obvious, linear adjustment is poor the defects of, it designs a kind of uniform flow orifice type controllable register that can be applied to all pipelines: replacing controllable register blade as regulating element using several groups orifice plate, replace the rotation of baffle blades as regulating measure using the various combination of orifice plate, will not only flow-disturbing be caused to influence in downstream media flow field, also there is apparent current balance function to pipeline flow field, so that baffle and its downstream media VELOCITY DISTRIBUTION are uniform；According to different needs, settable different logic is to cope with each requirement for adjusting section, linear adjustment is preferable, about 70% is reduced compared to traditional controllable register complete equipment weight, and simple production process, mating actuator travel only needs 50mm ~ 100mm, and complete equipment cost reduces about 80% ~ 90%.
Description
Technical field
The present invention relates to industrial automation process control fields, for adjusting the works such as rate-of flow, pressure, temperature, liquid level
The functional apparatus of skill parameter, specifically a kind of uniform flow orifice type controllable register.
Background technique
Controllable register is for adjusting rate-of flow, pressure, temperature, liquid level in industrial automation process control field etc.
The functional apparatus of technological parameter.With according to the control signal in automated system, the aperture of automatic or manual controllable register, thus
Realize the adjusting of the parameters such as rate-of flow, pressure, temperature and liquid level.
The history that the development of controllable register is begun existing more than 80 years so far from early 20th century, successively produces tens of kinds of productions
Product, small size, high-precision reliability, functionality and the production cost for adjusting controllable register (control valve) obtain at present
It is obviously improved.But the large scale equipment of the damper for similar thermal power generation air and gas system, it is contemplated that its cost and functionality,
Generally using shutter or butterfly damper as shown in Figure 1, being both the different open positions in 90 ° of strokes of flapper
It sets and other technological parameters is adjusted to achieve the purpose that adjust flow by different rate-of flows.
This baffle has following defect: 1, baffle blades are fairly obvious to the guiding role of medium, and baffle downstream is caused to be situated between
Mass flow field distribution disorder, necessarily leads to a large amount of local eddy currents, does not simply fail to that module related measurement devices are arranged in downstream, and to pipe
The overall stability of road system has a great impact as shown in Figure 2；2, along with a large amount of local low-speed regions, necessarily lead to part
Region Medium flow velocity is higher, and high-speed region is mainly concentrated at the blade edge of windward side, and medium velocity peak value can achieve design value
1.5 ~ 2.5 times, long-term high speed purging easily wear equipment, as shown in Figure 3；3, it is limited, is passed by the structure of rotation blade
Damper unite larger and adjustment effect is unobvious when compared with small guide vane, as certain station boiler secondary air regulation baffle is opened larger
There is provided resistance section when spending (70 ° ~ 90 °) is only the Pa of 10 Pa ~ 50；Resistance section is provided when compared with small guide vane (0 ° ~ 30 °)
For 3000 Pa ~ ∞ Pa；The effective section that adjusts is only 30 ° ~ 70 °, and baffle is integrally-regulated linear bad as shown in Figure 4.
In this background, for the performance requirement and application environment of the smoke wind pipe controllable register of thermal power generation, exploitation
Locate a kind of novel controllable register, not only the adequate solution typical defect problem of traditional controllable register, can also further push away
It is wide that controllable register is used as into various industrial automation equipments.
Summary of the invention
The purpose of the present invention is to solve the above-mentioned problems of the prior art, and then provide a kind of uniform flow orifice type tune
Save baffle, for the performance requirement and application environment of the smoke wind pipe controllable register of thermal power generation, the traditional tune of adequate solution
The defect problem for saving baffle, will not only cause flow-disturbing to influence in downstream media flow field, also generate to pipeline Flow Field Distribution obvious
Current balance function, be particularly suitable for sending, air-introduced machine exit, so that baffle and its downstream media VELOCITY DISTRIBUTION are uniform；According to not
Same needs, for settable different logic to cope with each requirement for adjusting section, linear adjustment is preferable.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of uniform flow orifice type controllable register, including the controllable register being made of orifice plate, the controllable register is by identical hole
Closed assembly is constituted plate layer by layer, and the position of opening on each orifice plate is corresponding, and orifice plate constitutes the orifice plate of controllable register with a thickness of 6mm-16mm
Quantity is 3 pieces -16 pieces, and hole packing free ratio is 15%-95%.
Further, aperture arrangement in a row on the orifice plate, and footline aperture is greater than first trip aperture.
Further, the orifice plate of controllable register is constituted with a thickness of 6mm ~ 10mm, and hole packing free ratio is 75% ~ 85%, orifice plate number
Amount is 4 ~ 12 pieces.
Further, the orifice plate of controllable register is constituted with a thickness of 10mm ~ 16mm, and hole packing free ratio is 75% ~ 85%, orifice plate number
Amount is 4 ~ 12 pieces.
Further, the orifice plate of controllable register is constituted with a thickness of 10mm ~ 16mm, and percent opening is 85% ~ 95%, and orifice plate quantity is
12 ~ 16 pieces.
Further, the orifice plate of controllable register is constituted with a thickness of 8mm ~ 16mm, and percent opening is 15% ~ 75%, and orifice plate quantity is 3
~ 9 pieces.
The invention has the advantages that by using technical solution of the present invention, it is bright for the flow-disturbing of existing controllable register
It aobvious, the defects of linear adjustment is poor, designs a kind of uniform flow orifice type controllable register that can be applied to all pipelines: being suitable for institute
There are the controllable register of conventional conduit system, such as various oil transportations, gas transmission, defeated cigarette, the large, medium and small pipe-line system of water delivery；With several groups
Orifice plate replaces controllable register blade as regulating element, replaces the rotation of baffle blades as adjusting hand using the various combination of orifice plate
Section, will not only cause flow-disturbing to influence in downstream media flow field, also generate apparent current balance function to pipeline Flow Field Distribution, especially
Suitable for giving, air-introduced machine exit so that baffle and its downstream media VELOCITY DISTRIBUTION are uniform；According to different needs, settable
For different logics to cope with each requirement for adjusting section, linear adjustment is preferable.
(1) novel controllable register solves the blade types such as conventional blind formula controllable register and obviously, easily grinds to downstream flow-disturbing
Damage, the defect of linear adjustment difference, performance are more superior.
(2) novel controllable register has apparent current balance function to pipe line downstream medium flow field, and can be according to engineering
It can need to be designed as loading and unsupported property, function is more powerful.
(3) novel controllable register reduces about 70% compared to traditional controllable register complete equipment weight, production technology letter
Single, mating actuator torque requirement is lower, and complete equipment cost reduces about 80% ~ 90%.
(4) novel controllable register occupied space is smaller: conventional project is that height of baffle plate is can be controlled in along pipeline medium flow direction
Within 100mm, mating actuator travel only needs 50mm ~ 100mm, occupies pipeline external space very little.
Detailed description of the invention
Fig. 1 is the schematic diagram of boiler secondary air controllable register
Fig. 2 is boiler conventional blind type controllable register velocity of downstream motion pattern
Fig. 3 is boiler conventional blind type controllable register blade edge speed cloud atlas
Fig. 4 is boiler conventional blind type controllable register performance diagram
Fig. 5 is current-sharing controllable register standard-sized sheet schematic diagram
Fig. 6 is that current-sharing controllable register closes schematic diagram entirely
Fig. 7 is current-sharing controllable register closed assembly schematic diagram
Fig. 8 is typical variable orifice diameter orifice plate schematic diagram.
Specific embodiment
Below in conjunction with attached drawing, the present invention is described in further detail: the present embodiment is being with technical solution of the present invention
Under the premise of implemented, give detailed embodiment, but protection scope of the present invention is not limited to following embodiments.
As shown in Fig. 5, Fig. 6, Fig. 7, a kind of uniform flow orifice type controllable register involved in the present embodiment, including by orifice plate structure
At controllable register, the controllable register by identical orifice plate layer stackup dress constitute, the position of opening on each orifice plate is corresponding,
Orifice plate is with a thickness of 6mm-16mm, and the orifice plate quantity for constituting controllable register is 3 pieces -16 pieces, and hole packing free ratio is 15%-95%；It is not
It can change the circulation area of pipeline medium at baffle with the various combination of orifice plate, and then different resistances be provided, reach adjusting
The effect of rate-of flow: when aperture is completely coincident on orifice plate, orifice plate aperture is circulation area, baffle be shown in a fully open operation as
Shown in Fig. 5, when aperture is staggered completely on orifice plates at different levels, the aperture of orifice plate is blocked according to grade, and the circulation area of pipeline is 0, gear
It is as shown in Figure 6 that plate is in full off state；It converts the circulation area at baffle to the different combinations of orifice plate, passes through radial direction
Moving orifice changes the actual circulation area of orifice plate, and then has the function that adjust flow.
For orifice plate as main adjusting and equal fluid element, there are many kinds of design methods: the aperture of same orifice plate can basis
Actual requirement of engineering is designed as same size or different size, as that can set aperture in the case where crushing allows after racing elbow
It is calculated as being gradually become smaller by elbow interior angle to elbow exterior angle, and then balances the assignment of traffic at angle inside and outside racing elbow, play adjusting stream
Amount and the double action flowed are as shown in Figure 7；It can be needed orifice plate aperture being designed as round hole, rectangular opening according to engineering property
Or other irregularly-shaped holes, such as support type controllable register, when baffle standard-sized sheet, also needs to provide certain resistance, higher net without guaranteeing
Circulation area, at this time in order to save production cost, orifice plate aperture can be designed as it is rectangular or other be conducive to production shape.
As an embodiment of the present invention, aperture arrangement in a row on the orifice plate, and footline aperture is greater than first trip hole
Diameter becomes larger from first trip to footline aperture.
As an embodiment of the present invention, do not increase additionally when non-loading type controllable register is exactly baffle standard-sized sheet or less
Increase pipe-line system resistance controllable register, the hole packing free ratio of this baffle is larger, and orifice plate is completely coincident i.e. baffle standard-sized sheet
When, baffle net inflow area is larger, constitutes the orifice plate of controllable register with a thickness of 6mm ~ 10mm, hole packing free ratio is 75% ~ 85%, hole
Plate quantity is 4 ~ 12 pieces.
Big for medium pressure head or larger-size pipeline can choose constitute controllable register orifice plate with a thickness of 10mm ~
16mm, hole packing free ratio are that 75% ~ 85%, orifice plate quantity is 4 ~ 12 pieces, and corresponding pull rod is arranged in line upstream and is fixed.
Or standard-sized sheet resistance lower pipeline more demanding for degree of regulation can be chosen according to requirement of engineering and constitute adjusting
For the orifice plate of baffle with a thickness of 10mm ~ 16mm, percent opening is 85% ~ 95%, and orifice plate quantity is 12 ~ 16 pieces.
As an embodiment of the present invention, increased when support type controllable register is exactly baffle standard-sized sheet according to requirement of engineering and managed
The controllable register of the certain resistance of road system.According to the performance requirement of pipe-line system, the percent opening of support type controllable register can be set
Be calculated as 15% ~ 75%, the resistance of pipe-line system 50Pa ~ 5000Pa can be provided in baffle standard-sized sheet, orifice plate with a thickness of 8mm ~ 16mm,
Orifice plate quantity is 3 ~ 9 pieces, and corresponding pull rod is arranged in line upstream and is fixed.
The foregoing is only a preferred embodiment of the present invention, these specific embodiments are all based on the present invention
Different implementations under general idea, and scope of protection of the present invention is not limited thereto, it is any to be familiar with the art
Technical staff in the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, should all cover of the invention
Within protection scope.Therefore, the scope of protection of the invention shall be subject to the scope of protection specified in the patent claim.
Claims (6)
1. a kind of uniform flow orifice type controllable register, including the controllable register being made of orifice plate, which is characterized in that the adjusting
Baffle is made of identical orifice plate layer stackup dress, and the position of opening on each orifice plate is corresponding, and orifice plate is constituted with a thickness of 6mm-16mm
The orifice plate quantity of controllable register is 3 pieces -16 pieces, and hole packing free ratio is 15%-95%.
2. uniform flow orifice type controllable register according to claim 1, which is characterized in that aperture is embarked on journey on the orifice plate
Arrangement, and footline aperture is greater than first trip aperture.
3. uniform flow orifice type controllable register according to claim 1, which is characterized in that constitute the hole plate thickness of controllable register
Degree is 6mm ~ 10mm, and hole packing free ratio is that 75% ~ 85%, orifice plate quantity is 4 ~ 12 pieces.
4. uniform flow orifice type controllable register according to claim 1, which is characterized in that constitute the hole plate thickness of controllable register
For 10mm ~ 16mm, hole packing free ratio is that 75% ~ 85%, orifice plate quantity is 4 ~ 12 pieces.
5. uniform flow orifice type controllable register according to claim 1, which is characterized in that constitute the hole plate thickness of controllable register
For 10mm ~ 16mm, percent opening is 85% ~ 95%, and orifice plate quantity is 12 ~ 16 pieces.
6. uniform flow orifice type controllable register according to claim 1, which is characterized in that constitute the hole plate thickness of controllable register
For 8mm ~ 16mm, percent opening is 15% ~ 75%, and orifice plate quantity is 3 ~ 9 pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811073839.2A CN109323281A (en) | 2018-09-14 | 2018-09-14 | Uniform flow orifice type controllable register |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811073839.2A CN109323281A (en) | 2018-09-14 | 2018-09-14 | Uniform flow orifice type controllable register |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109323281A true CN109323281A (en) | 2019-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811073839.2A Pending CN109323281A (en) | 2018-09-14 | 2018-09-14 | Uniform flow orifice type controllable register |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692354A (en) * | 2020-06-02 | 2020-09-22 | 哈尔滨锅炉厂有限责任公司 | Transmission matching device suitable for flow equalizing pore plate type adjusting baffle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1109225A (en) * | 1993-08-17 | 1995-09-27 | Abb管理有限公司 | Gas-cooled electrical machine |
| JPH08327134A (en) * | 1995-05-26 | 1996-12-13 | Kyoritsu Eatetsuku Kk | Air volume adjusting damper |
| CN102086939A (en) * | 2009-12-07 | 2011-06-08 | 鸿富锦精密工业（深圳）有限公司 | Vane type throttle valve |
| CN103697746A (en) * | 2013-12-31 | 2014-04-02 | 北京七星华创电子股份有限公司 | Heat exchanger flow equalizer |
-
2018
- 2018-09-14 CN CN201811073839.2A patent/CN109323281A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1109225A (en) * | 1993-08-17 | 1995-09-27 | Abb管理有限公司 | Gas-cooled electrical machine |
| JPH08327134A (en) * | 1995-05-26 | 1996-12-13 | Kyoritsu Eatetsuku Kk | Air volume adjusting damper |
| CN102086939A (en) * | 2009-12-07 | 2011-06-08 | 鸿富锦精密工业（深圳）有限公司 | Vane type throttle valve |
| CN103697746A (en) * | 2013-12-31 | 2014-04-02 | 北京七星华创电子股份有限公司 | Heat exchanger flow equalizer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692354A (en) * | 2020-06-02 | 2020-09-22 | 哈尔滨锅炉厂有限责任公司 | Transmission matching device suitable for flow equalizing pore plate type adjusting baffle |
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Application publication date: 20190212 |