CN104075326B - A kind of venturi fuel gas mixer - Google Patents
A kind of venturi fuel gas mixer Download PDFInfo
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- CN104075326B CN104075326B CN201410223071.8A CN201410223071A CN104075326B CN 104075326 B CN104075326 B CN 104075326B CN 201410223071 A CN201410223071 A CN 201410223071A CN 104075326 B CN104075326 B CN 104075326B
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- pipe
- base enclosure
- necking
- air inlet
- inlet pipe
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Abstract
A kind of venturi fuel gas mixer, base enclosure lateral wall sets the Gas Pipe being connected with inside it；Being coaxial therewith by Flange joint one in base enclosure and upper orifice diameter is more than the necking pipe of lower nozzle diameter, the upper orifice of necking pipe stretches out the upper shed of base enclosure, and lower nozzle stretches in base enclosure；Being provided with in frustum-like shape choma near its under shed position in base enclosure, one L-type air inlet pipe of Flange joint is passed through on the top of necking pipe, and a mouth of pipe of air inlet pipe and necking pipe are coaxially disposed；Being provided with interior plug in necking pipe, interior plug is supported by the connector threadeded with necking pipe on its lateral wall, is inside provided with a vertical adjusting screw rod beyond the Great Wall, and the top of adjusting screw rod is stretched out described air inlet pipe and is together by a threaded connection with air inlet pipe tube wall.It is adjustable that the present invention compared with prior art has air inflow, and air is big with the linear blend range of combustion gas, good mixing property, the advantages such as gas flow rate is fast.
Description
The field of inventionthe invention relate to a kind of gas mixer, particularly relate to a kind of venturi fuel gas mixer.
Background technology is current, venturi fuel gas mixer is to be applied in heating system, cooling device, hot water facility and various stove equipment realize the important device of air and combustion gas mixing, existing venturi mixer takes the form of necking pipe to mix to realize air with the effective of combustion gas substantially, the fuel gas mixer of this necking pipe structure also exists deficiency when practical application: air passes through necking pipe endoporus, the negative pressure produced at necking pipe reducing outward flange is too little, the changes in flow rate causing air causes gas flow excursion too little, and air circulation mouth of pipe cross section is constant, air mass flow is uncontrollable, the linear hybrid of air and combustion gas reduces than scope, the debugging of combustion apparatus, serviceability reduces.
It is adjustable that summary of the invention it is an object of the invention to provide a kind of air inflow, and air is big with the linear blend range of combustion gas, and good mixing property, gas flow rate is fast, it is simple to the debugging of equipment, is greatly improved the venturi fuel gas mixer of combustion apparatus serviceability.
A kind of venturi fuel gas mixer, mainly includes base enclosure, Gas Pipe, choma, necking pipe, air inlet pipe, interior plug, connector and adjusting screw rod, and described base enclosure is the hollow housing of all openings up and down, and its lateral wall sets the Gas Pipe being connected with inside it；Be coaxial therewith by Flange joint one in described base enclosure and upper orifice diameter is more than the straight tube of lower nozzle diameter, i.e. necking pipe, the upper orifice of this necking pipe stretches out the upper shed of base enclosure, and lower nozzle stretches in base enclosure；Be provided with the annulus in frustum-like shape near its under shed position in described base enclosure, i.e. choma, the lateral wall root of this choma and the inwall of base enclosure link together, and the bottom of the top of described choma and necking pipe has gap；Flange joint one L-type bend pipe, i.e. air inlet pipe are passed through in the top of above-mentioned necking pipe, and a mouth of pipe of this air inlet pipe and necking pipe are coaxially disposed；Interior plug it is provided with in above-mentioned necking pipe, this interior plug is supported by the connector threadeded with necking pipe on its lateral wall, being provided with a vertical adjusting screw rod in described beyond the Great Wall, the top of this adjusting screw rod is stretched out described air inlet pipe and is together by a threaded connection with air inlet pipe tube wall.
On described adjusting screw rod and be positioned at the outer attaching nut of air inlet pipe, it is ensured that interior plug is more stable and screw rod spacing.
Preferably, the cross section of described interior plug is circular.
Preferably, set cannelure along described base enclosure upper shed edge, in cannelure, set sealing ring.
The upper shed diameter of described choma is more than the lower nozzle diameter of necking pipe.
One gas (such as air) is introduced necking pipe by the air inlet pipe of the present invention, in two mouths of pipe of necking pipe, the air inlet of the upper orifice that diameter is big, the lower nozzle that diameter is little is given vent to anger, upper orifice place gas flow rate is relatively low, lower nozzle (reducing) place gas flow rate is higher, for increasing gas flow rate in necking pipe, installs interior plug additional to reduce the cross section of lower nozzle (reducing) in necking pipe；In addition, interior plug can move along its axis adjustment in necking pipe, so can change the flow entering necking pipe gas, it is connected by the closing of flange seam with base enclosure, air inlet pipe outside necking pipe, overall tightness can be ensured, when necking pipe lower nozzle (reducing) outer edge and choma edge form circumferential weld, another kind of gas (such as combustion gas) enters base enclosure by Gas Pipe, from base enclosure under shed flows out after mixing with gas in necking pipe after flowing out from circumferential weld.
The present invention compared with prior art has the advantage that
1, be greatly improved device internal gas blend range, can according to practical situation adjusting gas flow and flow velocity, thus the mixed proportion regulated between gas；
2, increasing gas flow rate makes mixed performance be improved, and especially after air and combustion gas mixing, mixed effect strengthens, sufficient combustion, completely, reduces gas waste；
3, being easy to the debugging of actual power according to equipment such as heating, cooking stoves, debugging scope is big, and controllability is strong, flexible operation, improves equipment work efficiency, reduces equipment production cost；
4, simple structure, cost of manufacture is cheap, long service life, applied range, energy-conservation, efficient.
The master that description of drawings 1 is the present invention looks generalized section.
Fig. 2 is the A-A view of Fig. 1.
Next the present invention is just elaborated by detailed description of the invention in conjunction with accompanying drawing
nullA kind of venturi fuel gas mixer，As depicted in figs. 1 and 2，Base enclosure 1 is that all opening and cross section are circular hollow housing up and down，Its lateral wall is bolted the Gas Pipe 2 being connected with inside it，Base enclosure connects one be coaxial therewith and upper orifice diameter is more than the straight tube of lower nozzle diameter，I.e. necking pipe 3，This necking pipe is made up of the two sections of pipes being connected as a single entity，Epimere pipe 3-1 is equal pipe，Its external diameter is identical with the internal diameter of base enclosure，The lower end of epimere pipe connects hypomere pipe 3-2，Hypomere pipe is the upper orifice diameter reduced pipe more than lower nozzle diameter，Its upper orifice diameter is identical with the internal diameter of epimere pipe，The upper orifice (upper orifice of epimere pipe) of described necking pipe stretches out the upper shed of base enclosure，The ring flange 111 being connected as a single entity with it is set near apical position in the lateral wall of the epimere pipe extension of necking pipe，The upper surface of this ring flange 111 is concordant with the upper surface of necking pipe，The lateral wall of described base enclosure sets the ring flange 112 being connected as a single entity with it near apical position，The upper surface of this ring flange 112 connects with the lower surface of above-mentioned ring flange 111，The lower nozzle (lower nozzle of hypomere pipe) of described necking pipe stretches in base enclosure；Set cannelure along described base enclosure upper shed edge, in cannelure, set sealing ring 4；Set, near its under shed position, the annulus being connected as a single entity in frustum-like shape with it in described base enclosure, i.e. choma 5, the lateral wall root of this choma and the inwall of base enclosure link together, and the upper shed diameter of this choma is more than the lower nozzle diameter of necking pipe；The top of above-mentioned necking pipe connects a L-type bend pipe, i.e. air inlet pipe 6, one mouth of pipe 6-1 of this air inlet pipe and necking pipe are coaxially disposed, the lateral wall of described air inlet pipe sets ring flange 113 near the mouth of pipe 6-1 position coaxial with necking pipe, the lower surface of the ring flange 113 should being connected as a single entity with air inlet pipe is concordant with the lower surface of mouth of pipe 6-1, and ring flange 113 lower surface connects with the upper surface of above-mentioned ring flange 111, and described ring flange 111, ring flange 112 and ring flange 113 are bolted on together；The interior plug 7 of circular in cross-section is set in above-mentioned necking pipe, the connector threadeded with necking pipe on this Nei Saitong lateral wall supports, described connector is made up of journal stirrup 8 and the collar 9, inside set the torus being sleeved on inside beyond the Great Wall, the i.e. collar, the collar is linked together by 3 uniform bar shaped journal stirrups and interior plug, one end of every journal stirrup is bonding with the lateral wall of interior plug, the other end is bonding with collar medial wall, the lateral wall of the described collar sets external screw thread, the inwall of necking pipe sets the female thread corresponding with external screw thread on the collar, the collar and necking pipe are together by a threaded connection；A vertical adjusting screw rod 10 it is provided with beyond the Great Wall in described, the lower end of this adjusting screw rod is stretched into the inside of interior plug and is bonded together by glue, the top of adjusting screw rod is stretched out described air inlet pipe and is together by a threaded connection with air inlet pipe tube wall, on adjusting screw rod and be positioned at the outer attaching nut 11 of air inlet pipe；The lateral wall of above-mentioned base enclosure sets to connect the ring flange 114 of equipment pipe near bottom position, and the lower surface of the ring flange 114 should being connected as a single entity with base enclosure is concordant with the lower surface of base enclosure.
Claims (7)
1. a venturi fuel gas mixer, including base enclosure, Gas Pipe, air inlet pipe, interior plug, connector and adjusting screw rod, described base enclosure is the hollow housing of all openings up and down, and its lateral wall sets the Gas Pipe being connected with inside it；Being provided with a vertical adjusting screw rod in described beyond the Great Wall, the top of this adjusting screw rod is stretched out described air inlet pipe and is together by a threaded connection with air inlet pipe tube wall；It is characterized in that: also include choma and necking pipe, described base enclosure being coaxial therewith by Flange joint one and upper orifice diameter is more than the necking pipe of lower nozzle diameter, the upper orifice of this necking pipe stretches out the upper shed of base enclosure, and lower nozzle stretches in base enclosure；Being provided with in frustum-like shape choma near its under shed position in described base enclosure, the lateral wall root of this choma and the inwall of base enclosure link together, and the bottom of the top of described choma and necking pipe has gap；One L-type air inlet pipe of Flange joint is passed through on the top of above-mentioned necking pipe, and a mouth of pipe of this air inlet pipe and necking pipe are coaxially disposed；This interior plug is supported by the connector threadeded with necking pipe on its lateral wall.
2. venturi fuel gas mixer according to claim 1, it is characterized in that: described connector is made up of journal stirrup and the collar, inside set the torus being sleeved on inside beyond the Great Wall, the i.e. collar, the collar is linked together by least 3 uniform bar shaped journal stirrups and interior plug, one end of every journal stirrup is bonding with the lateral wall of interior plug, the other end is bonding with collar medial wall, the lateral wall of the described collar sets external screw thread, the inwall of necking pipe sets the female thread corresponding with external screw thread on the collar, and the collar and necking pipe are together by a threaded connection.
3. venturi fuel gas mixer according to claim 1 and 2, is characterized in that: on described adjusting screw rod and be positioned at the outer attaching nut of air inlet pipe.
4. venturi fuel gas mixer according to claim 3, is characterized in that: the upper shed diameter of described choma is more than the lower nozzle diameter of necking pipe.
5. venturi fuel gas mixer according to claim 4, is characterized in that: the lateral wall of above-mentioned base enclosure sets to connect the ring flange of equipment pipe near bottom position, and the lower surface of the ring flange should being connected as a single entity with base enclosure is concordant with the lower surface of base enclosure.
6. venturi fuel gas mixer according to claim 5, is characterized in that: sets cannelure along described base enclosure upper shed edge, sets sealing ring in cannelure.
7. venturi fuel gas mixer according to claim 6, is characterized in that: the cross section of described interior plug is circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410223071.8A CN104075326B (en) | 2014-05-26 | 2014-05-26 | A kind of venturi fuel gas mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410223071.8A CN104075326B (en) | 2014-05-26 | 2014-05-26 | A kind of venturi fuel gas mixer |
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| Publication Number | Publication Date |
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| CN104075326A CN104075326A (en) | 2014-10-01 |
| CN104075326B true CN104075326B (en) | 2016-07-06 |
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| CN201410223071.8A Active CN104075326B (en) | 2014-05-26 | 2014-05-26 | A kind of venturi fuel gas mixer |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696114A (en) * | 2015-02-16 | 2015-06-10 | 杭州赫日新能源科技有限公司 | Two-stage controlled Venturi inlet gas mixer |
| CN106194505B (en) * | 2016-10-08 | 2018-08-31 | 河南柴油机重工有限责任公司 | A kind of adjustable air-fuel ratio mixer for V-type gas compressor |
| CN112705037B (en) * | 2020-12-29 | 2022-09-09 | 浙江德创环保科技股份有限公司 | Flue gas desulfurization process for miniature industrial gas boiler |
| CN112705038B (en) * | 2020-12-29 | 2022-08-26 | 浙江德创环保科技股份有限公司 | Flue gas desulfurization system of miniature industrial gas boiler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2515545Y (en) * | 2001-07-31 | 2002-10-09 | 天津华燊燃气实业有限公司 | Liquefied petroleum gas mixed gas spray nozzle regulator |
| CN201059561Y (en) * | 2007-06-28 | 2008-05-14 | 王志祥 | Coal gas and combustion air double regulated internal-burning type gas burner |
| CN201866769U (en) * | 2010-11-22 | 2011-06-15 | 游述怀 | Anti-backfire gas burner |
| CN202036942U (en) * | 2011-04-27 | 2011-11-16 | 霍山东科科技开发有限公司 | Adjustable gas mixer |
-
2014
- 2014-05-26 CN CN201410223071.8A patent/CN104075326B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2515545Y (en) * | 2001-07-31 | 2002-10-09 | 天津华燊燃气实业有限公司 | Liquefied petroleum gas mixed gas spray nozzle regulator |
| CN201059561Y (en) * | 2007-06-28 | 2008-05-14 | 王志祥 | Coal gas and combustion air double regulated internal-burning type gas burner |
| CN201866769U (en) * | 2010-11-22 | 2011-06-15 | 游述怀 | Anti-backfire gas burner |
| CN202036942U (en) * | 2011-04-27 | 2011-11-16 | 霍山东科科技开发有限公司 | Adjustable gas mixer |
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| CN104075326A (en) | 2014-10-01 |
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Denomination of invention: A venturi gas mixer Effective date of registration: 20201217 Granted publication date: 20160706 Pledgee: Dalian Lvshunkou Mengyin Village Bank Co.,Ltd. Pledgor: DALIAN BORN TECHNOLOGY Co.,Ltd. Registration number: Y2020210000070 |
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