CN207605611U - A kind of venturi mixer - Google Patents
A kind of venturi mixer Download PDFInfo
- Publication number
- CN207605611U CN207605611U CN201721725561.3U CN201721725561U CN207605611U CN 207605611 U CN207605611 U CN 207605611U CN 201721725561 U CN201721725561 U CN 201721725561U CN 207605611 U CN207605611 U CN 207605611U
- Authority
- CN
- China
- Prior art keywords
- draw
- outer tube
- venturi mixer
- expander
- air
- 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.)
- Active
Links
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 102000011842 Serrate-Jagged Proteins Human genes 0.000 claims description 8
- 108010036039 Serrate-Jagged Proteins Proteins 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 abstract description 11
- 239000002737 fuel gas Substances 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 10
- 239000000567 combustion gas Substances 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model provides a kind of venturi mixer, belongs to technology of gas pipeline field.It solves existing venturi fuel gas mixer for powerful venturi mixer structural stability deficiency, and interior high, the big technical problem of noise that plugs the air resistance coefficient in the middle part of the necking.This venturi mixer includes the draw flowed into for air and the expander flowed out for air mixture, and the draw is arranged with expander face, and the end of the draw is equipped with cricoid adjusting set, and the madial wall of the outer rim of the adjusting set and the draw reclines cooperation.The more stable and air flow resistance of this venturi mixer connection is small, and muting function is more preferable.
Description
Technical field
The utility model belongs to technology of gas pipeline field, is related to a kind of venturi mixer.
Background technology
Venturi tube (Venturi tube) is divided into concealed Venturi pipe and plug-in type Venturi tube by structure.In steel
The combustion air of factory's hot-blast stove, cold wind, gas measurement (blast furnace gas, coke-stove gas, coal gas of converter) and the boiler of steam power plant are primary
Wind, Secondary Air Large Diameter Pipeline, low flow velocity pipeline meter have received good effect in measuring.Solve applicable industry enterprise mesolow, big
Caliber, all kinds of gas flows of low flow velocity accurately measure.
Application publication number is that the Chinese invention patent of CN104075326A discloses a kind of venturi fuel gas mixer, base enclosure
The Gas Pipe being connected with inside it is set on lateral wall；Pass through one coaxial and upper orifice diameter of flanged joint in base enclosure
More than the necking pipe of lower nozzle diameter, the upper orifice of necking pipe stretches out the upper opening of base enclosure, and lower nozzle stretches into base enclosure；In base enclosure
It is in frustum-like shape choma to be equipped with close to its under shed position, and the top of necking pipe passes through one L-type air inlet pipe of flanged joint, air inlet pipe
A nozzle and necking pipe be coaxially disposed；Interior plug is equipped in necking pipe, interior plug on its lateral wall with necking pipe screw thread by connecting
The connector support connect, is inside equipped with a vertical adjusting screw rod beyond the Great Wall, the top of adjusting screw rod stretch out the air inlet pipe and
It is together by a threaded connection with air inlet tube wall.
Above-mentioned venturi fuel gas mixer air inflow is adjustable and blend range is big, but still comes with some shortcomings：Interior plug passes through
Screw rod is hanging, for powerful venturi mixer structural stability deficiency, and it is interior to plug the air resistance coefficient in the middle part of the necking high,
Noise is big.
Invention content
The utility model existing above problem in view of the prior art, provides a kind of venturi mixer, this practicality is newly
Type the technical problem to be solved is that：How stability contorting venturi air inflow and muting function is ensured.
The purpose of this utility model can be realized by following technical proposal：
A kind of venturi mixer, includes the draw flowed into for air and the expander flowed out for air mixture, described
The draw is arranged with expander face, which is characterized in that the end of the draw is equipped with cricoid adjusting set, the outer rim of the adjusting set
It reclines cooperation with the madial wall of the draw.
The draw is the small class conical pipe fitting of entrance large outlet in Venturi tube, and air is compressed after the inflow of draw entrance
Flow velocity becomes faster, and forms low pressure in the exit periphery of the draw, enters in expander jointly to adsorb combustible gas with air and mix.
To adapt to the combustion requirements of different capacity boiler, the inlet for controlling air is needed, by the setting of the end of the draw and the draw
The cyclic annular adjusting set of madial wall cooperation, adjusting set can reduce the smallest cross-sectional of the draw, to limit the flow of air, adjust in addition
It covers and reclines with the madial wall of the draw, the more stable and air flow resistance of contact surface ambassador connection is small, and muting function is more preferable.
In a kind of above-mentioned venturi mixer, the inner edge of the adjusting set is from bottom to top to contract, the adjusting set
Lower end and the madial wall of the draw seamlessly transit.By the inner edge of setting adjusting set along height to contract, and adjusting set is set
Lower end and the draw on the inside of seamlessly transit, the structure windage smaller of such adjusting set advanced optimizes muting function.
Further include outer tube in a kind of above-mentioned venturi mixer, the draw and expander are fixed and the outer tube
Interior, the side wall of the outer tube offers air admission hole, and cricoid blast tube, the combustion gas are formed between the draw, expander and outer tube
Channel is connected with the air admission hole.Led to by the way that outer tube is arranged and makes outer tube that cricoid combustion gas be collectively formed with the draw and expander
Road, combustion gas enter blast tube by air admission hole and spread, and are entered and sky from surrounding by the hypobaric effect of draw end periphery
Gas mixes, and improves combustion gas mixing effect.
In a kind of above-mentioned venturi mixer, the lower end of the outer tube has expansion mouth, the internal diameter of the expansion mouth
Size is more than the internal diameter size of the outer tube, and the outer rim of the draw is matched with the madial wall of the expansion mouth.To reach mixing
Each component locations of effect, Venturi tube need precise match, by the way that expansion mouth is arranged in the lower end of outer tube and makes the outer of the draw
Edge coordinates with expansion mouth madial wall, limits the position of the draw when installing the draw in this way, makes installation accuracy higher.
In a kind of above-mentioned venturi mixer, there is ring flange, the upper end of the expander to have for the upper end of the outer tube
There are the flange radially extended, the downside of the flange to be fixedly connected with the ring flange.By the way that flange is arranged in the upper end of outer tube
Disk makes the flange of expander be bonded with ring flange and is connected, and flange is big with ring flange contact area and large-sized expander is convenient for
Operating personnel are from outer processing, lift structure stability and easy making process.
In a kind of above-mentioned venturi mixer, the expander small end bottom and the rib limit of draw small end periphery are matched
It closes.Expander small end bottom is set and the rib limit of draw small end periphery coordinates, further limits the axial position of the two in this way.
In a kind of above-mentioned venturi mixer, the draw and flange are connected with the outer tube by glue, should
The outer rim of the draw and/or the downside of flange circumferentially offer serrate slot.By in the outer rim of the draw and/or the downside of flange
The circumferentially arranged serrate slot in face, serrate slot gap, which can store, keeps enough glue, cloth glue effect is improved, to ensure that gluing is steady
It is qualitative.
In a kind of above-mentioned venturi mixer, the lower end open-mouth of the outer tube and/or the inside of the air admission hole
Wall is equipped with pressure test port.By the way that pressure test port is arranged in the lower end open-mouth of outer tube and/or the madial wall of the air admission hole,
It is convenient for the entrance pressure detecting to air and/or combustion gas, to ensure accurate air-fuel when as APS (wind pressure detection) safety
Protection provides monitoring port.
Compared with prior art, as follows the advantages of the utility model：
1, this venturi mixer is adjusted by the cyclic annular adjusting set in the setting of the end of the draw and the cooperation of draw madial wall
Set can reduce the smallest cross-sectional of the draw, limit the flow of air, the madial wall of adjusting set and the draw reclines in addition, contact surface ambassador
Connect that more stable and air flow resistance is small, and muting function is more preferable.
2, this venturi mixer passes through in the circumferentially arranged serrate slot of the outer rim of the draw and/or the downside of flange, tooth
Shape slot gap can store and keep enough glue, to ensure plybonding effect.
Description of the drawings
Fig. 1 is the left view structural representation of this venturi mixer.
Fig. 2 is the cross-sectional view of this venturi mixer.
Fig. 3 is the portions the A enlarged drawing in Fig. 2.
Fig. 4 is the portions the B enlarged drawing in Fig. 2.
In figure, 1, the draw；11, rib；2, expander；21, flange；3, adjusting set；
4, outer tube；41, air admission hole；42, expansion mouth；43, ring flange；
5, blast tube；6, serrate slot；7, pressure test port.
Specific implementation mode
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Fig. 2, this venturi mixer includes the draw 1 flowed into for air and the expansion flowed out for air mixture
Pipe 2, the draw 1 are arranged with 2 face of expander, and the end of the draw 1 is equipped with cricoid adjusting set 3, outer rim and the draw 1 of adjusting set 3
Madial wall reclines cooperation.The draw 1 is the small class conical pipe fitting of entrance large outlet in Venturi tube, and air is flowed into from 1 entrance of the draw
It is become faster afterwards by compression flow velocity, forms low pressure in the exit periphery of the draw 1, mixed jointly with air to adsorb combustible gas
Into in expander 2.To adapt to the combustion requirements of different capacity boiler, the inlet for controlling air is needed, by the end of the draw 1
The cyclic annular adjusting set 3 of end setting and the cooperation of 1 madial wall of the draw, adjusting set 3 can reduce the smallest cross-sectional of the draw 1, to limit sky
The flow of gas, in addition adjusting set 3 and the madial wall of the draw 1 recline, contact surface ambassador connect more stable and air flow resistance it is small,
Muting function is more preferable.For further, the inner edge of adjusting set 3 is from bottom to top to contract, lower end and the draw 1 of the adjusting set 3
Madial wall seamlessly transit.By the inner edge of setting adjusting set 3 along height to contract, and lower end and the contracting of adjusting set 3 are set
The inside of pipe 1 seamlessly transits, and the structure windage smaller of such adjusting set 3 advanced optimizes muting function.
As shown in Figs 1-4, further include outer tube 4, the draw 1 and expander 2 are both secured in outer tube 4, and the side wall of the outer tube 4 opens up
There is air admission hole 41, form cricoid blast tube 5 between the draw 1, expander 2 and outer tube 4, blast tube 5 is connected with air admission hole 41.
By the way that outer tube 4 is arranged and makes outer tube 4 that cricoid blast tube 5 be collectively formed with the draw 1 and expander 2, combustion gas passes through air admission hole 41
It is spread into blast tube 5, is entered from surrounding by the hypobaric effect of 1 end periphery of the draw and mixed with air, improve combustion gas
Mixed effect.For further, there is ring flange 43, the upper end of expander 2 to have the flange 21 radially extended for the upper end of outer tube 4,
The downside of flange 21 is fixedly connected with ring flange 43.By the way that ring flange 43 is arranged in the upper end of outer tube 4, make the flange 21 of expander 2
It is bonded and is connected with ring flange 43, flange 21 is big with 43 contact area of ring flange and for 2 personnel easy to operation of large-sized expander
From outer processing, lift structure stability and easy making process.The lower end of outer tube 4 has expansion mouth 42, the internal diameter ruler of expansion mouth 42
The very little internal diameter size more than outer tube 4, the outer rim of the draw 1 are matched with the madial wall of the expansion mouth 42.To reach mixed effect, text
Each component locations of venturi need precise match, by the lower end of outer tube 4 expansion mouth 42 is set and make the outer rim of the draw 1 with
42 madial wall of expansion mouth coordinates, and limits the radial position of the draw 1 when install the draw 1 in this way, at the same by the small end of expander 2 and
The positioning assembly of rib 11 of the small end periphery of the draw 1, to limit axial position, makes installation accuracy higher.Preferably, the draw
1 and flange 21 with outer tube 4 by glue be connected, the outer rim of the draw 1 and the downside of flange 21 circumferentially offer tooth form
Slot 6.By the way that in the circumferentially arranged serrate slot 6 of the outer rim of the draw 1 and the downside of flange 21,6 gap of serrate slot can store guarantor
Enough glue is held, cloth glue effect is improved, to ensure gluing stability.
As shown in Figure 1 and Figure 2, the madial wall of the lower end open-mouth of outer tube 4 and air admission hole 41 is equipped with pressure test port 7.Pass through
In the lower end open-mouth of outer tube 4 and the madial wall of air admission hole 41, pressure test port 7 is set, be convenient for air or combustion gas into
Enter pressure detecting, foundation is provided for blast switch type selecting.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (8)
- Include the draw (1) flowed into for air and the expander (2) flowed out for air mixture 1. a kind of venturi mixer, The draw (1) is arranged with expander (2) face, which is characterized in that and the end of the draw (1) is equipped with cricoid adjusting set (3), The outer rim of the adjusting set (3) and the madial wall of the draw (1) recline cooperation.
- 2. venturi mixer according to claim 1, which is characterized in that the inner edge of the adjusting set (3) is from bottom to top To contract, the lower end of the adjusting set (3) and the madial wall of the draw (1) seamlessly transit.
- 3. venturi mixer according to claim 1 or 2, which is characterized in that further include outer tube (4), the draw (1) It is both secured in the outer tube (4) with expander (2), the side wall of the outer tube (4) offers air admission hole (41), and the draw (1) is expanded Cricoid blast tube (5) is formed between pipe (2) and outer tube (4), the blast tube (5) is connected with the air admission hole (41).
- 4. venturi mixer according to claim 3, which is characterized in that the lower end of the outer tube (4) has expansion mouth (42), the internal diameter size of the expansion mouth (42) be more than the outer tube (4) internal diameter size, the outer rim of the draw (1) with should The madial wall of expansion mouth (42) matches.
- 5. venturi mixer according to claim 3, which is characterized in that the upper end of the outer tube (4) has ring flange (43), the upper end of the expander (2) has the flange (21) radially extended, downside and the ring flange of the flange (21) (43) it is fixedly connected with.
- 6. venturi mixer according to claim 3, which is characterized in that expander (2) small end bottom and the draw (1) Rib (11) the limit cooperation of small end periphery.
- 7. venturi mixer according to claim 5, which is characterized in that the draw (1) and flange (21) are and institute It states outer tube (4) to be connected by glue, the outer rim of the draw (1) and/or the downside of flange (21) circumferentially offer serrate slot (6)。
- 8. venturi mixer according to claim 3, which is characterized in that the lower end open-mouth of the outer tube (4) and/or The madial wall of the air admission hole (41) is equipped with pressure test port (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721725561.3U CN207605611U (en) | 2017-12-11 | 2017-12-11 | A kind of venturi mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721725561.3U CN207605611U (en) | 2017-12-11 | 2017-12-11 | A kind of venturi mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207605611U true CN207605611U (en) | 2018-07-13 |
Family
ID=62798317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721725561.3U Active CN207605611U (en) | 2017-12-11 | 2017-12-11 | A kind of venturi mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207605611U (en) |
-
2017
- 2017-12-11 CN CN201721725561.3U patent/CN207605611U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020019586A1 (en) | Visual test bed device with rotary inflow channel for turbulent combustion with low heat loss | |
| CN205245173U (en) | Top air intake burner | |
| CN103697499B (en) | A kind of variable swirling number cyclone | |
| CN106989388A (en) | cooker burner | |
| CN109539248A (en) | A kind of burner air distribution device and air distribution method | |
| CN206669733U (en) | A kind of wind fires super blender | |
| CN207605611U (en) | A kind of venturi mixer | |
| CN208764924U (en) | A kind of novel upper wind inlet type burner | |
| CN202330134U (en) | Diesel engine exhaust particulate grain distribution dilution system for vehicle | |
| CN206739297U (en) | Cooker burner | |
| CN108444555A (en) | A kind of novel Venturi tube-type spreader flowmeter | |
| CN104353376B (en) | A kind of oil gas mixing machine being applied in oil system experiment porch | |
| CN214745903U (en) | Combustor inlet rectifying structure | |
| CN108443881B (en) | Combustion conical flame bunsen burner and flame propagation speed measuring method | |
| CN109059534A (en) | A kind of adjustable energy-efficient rotary kiln burner | |
| CN109404163A (en) | Measure the device and method that scramjet combustor gaseous film control covers interior flow velocity | |
| CN205400907U (en) | Miniature for gas turbine gas mixer of external -burning marsh gas | |
| CN114018346A (en) | Tool for measuring air flow of swirler of combustion chamber of gas turbine | |
| CN111829787B (en) | Visual combustion experiment platform capable of realizing multiple mixing | |
| CN105397680B (en) | Tool clamp for aircraft engine cyclone atomization test | |
| CN207600531U (en) | gas rectifier | |
| CN208449082U (en) | A kind of venturi mixer | |
| CN206291209U (en) | A kind of high-power cooker burner burner easy to clean | |
| CN202328270U (en) | Mechanical fixed-proportion gas/air mixing device | |
| CN207335790U (en) | Rectification pore plate flow measurement device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 1, Zhenqian Road, Xiachen Street, Jiaojiang District, Taizhou City, Zhejiang Province, 318000 Patentee after: ZHEJIANG INOVISEN THERMAL ENERGY TECHNOLOGY CO.,LTD. Address before: No.155 Haina road Taizhou Zhejiang 318000 Patentee before: ZHEJIANG INOVISEN THERMAL ENERGY TECHNOLOGY CO.,LTD. |
|
| CP02 | Change in the address of a patent holder |