CN202176556U - Injector with adjustable nozzle distance - Google Patents
Injector with adjustable nozzle distance Download PDFInfo
- Publication number
- CN202176556U CN202176556U CN2011202958642U CN201120295864U CN202176556U CN 202176556 U CN202176556 U CN 202176556U CN 2011202958642 U CN2011202958642 U CN 2011202958642U CN 201120295864 U CN201120295864 U CN 201120295864U CN 202176556 U CN202176556 U CN 202176556U
- Authority
- CN
- China
- Prior art keywords
- housing
- larynx mouth
- chamber
- apart
- mixing
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Accessories For Mixers (AREA)
Abstract
The utility model proposes an injector with an adjustable nozzle distance, which is used for mixing injected fluid and work fluid into mixed fluid. The injector with the adjustable nozzle distance comprises a nozzle, a suction chamber, a mixing chamber and a diffusion chamber, wherein the suction chamber is surrounded around the nozzle and communicated with the nozzle; the mixing chamber is communicated with the suction chamber, the diffusion chamber is communicated with the mixing chamber; the suction chamber, the mixing chamber and the diffusion chamber are sequentially connected, a gap is left between the nozzle and an inlet of the mixing chamber, and the gap is the nozzle distance; and the nozzle is arranged in a first shell, the mixing chamber is arranged in a second shell, and the first shell and the second shell are connected by an elastic device. Through the adjustment of the nozzle distance, the injector can always keep an optimal state, namely, the injector can keep optimal injection coefficiency, so that the injector can stably work for a long term, and the reverse flowing of the fluid caused by the change of the work condition of a work medium is avoided.
Description
Technical field
The utility model belongs to the lead-jetting device of coal gas hybrid system, in particular to a kind of larynx mouth apart from adjustable ejector.
Background technique
Iron And Steel Industry relates to the combustion gas of multiple different calorific values, like producer gas, coal gas of converter, coke-stove gas and LPG etc.Usually in order to satisfy the requirement of producing the user, need the mixed gas supply user that two or more rerum natura and the different single coal gas of calorific value are mixed into certain calorific value be used.This is significant for utilizing the limited energy rationally and effectively.
Using commonplace conventional hybrid technology at present is: capstan mixes; Be about to one or more low-pressure gas earlier through press be pressurized to close with high pressure gas pressure or identical after; The flow of regulating this two or more coal gas through the adjusting butterfly valve of installing on the pipeline again carries out pipeline to be mixed; The flow characteristic of each single coal gas does not change in this mixed process, like Fig. 1:
Mainly there is following defective in above-mentioned capstan hybrid mode: the one, and must adopt press that low-pressure gas is boosted; Making it reach the pressure close or identical with high pressure gas can mix; Capital investment is big like this; The equipment operation expense is high, and safety and control system are complicated, are unfavorable for energy-conserving and environment-protective.The 2nd, the quality of mixed gas is inhomogeneous, makes user's combustion instability, has influenced combustion gas user's normal use, and the retardation phenomenon that instrument is measured is comparatively serious.Can find out from the characteristic of the listed common coal gas of following table (table 1); What calorific value was higher differs bigger with lower its severe of single coal gas of calorific value; And pipeline mixes the not flow characteristic of the single coal gas of malleable of these means; The single coal gas that will inevitably make severe differ bigger forms stratification in mixed gas, cause uneven mixing.
Table 1 is the severe and the calorific value parameter of common coal gas
Table 1
At present; The gas balance of most of iron and steel enterprise faces deficient the lacking of coal gas of higher calorific value; Though and the problem that low-calorie blast furnace gas has the calorific value that can not satisfy most of production process more than needed to require; How fully effectively mix the coal gas that utilizes different calorific values, one of living means that to be iron and steel enterprise select the superior and eliminate the inferior in the environment of Market competition nowadays.
The problem that exists to above-mentioned traditional coal gas capstan mixed process; A kind of rational more economically new hybrid technology has appearred; Promptly be to be the mixed base present principles with fluidics, ejector as the coal gas mixing apparatus, is mixed two or more single coal gas of different pressures and component each other; And carry out energy interchange, and form the mixed gas of one moderate pressure.Wherein the higher single coal gas of pressure is called working fluid, and the single coal gas that pressure is lower is called driving fluid.Be characterized in that mixer-ejector itself does not need fuel or electric power as power, mechanism is simple, and manufacturing expenses are low, install simple and easy, easy to operate.The structure of ejector comprises work larynx mouth, inhales the people chamber, four parts in mixing chamber and diffusion chamber.Work larynx mouth is to realize that working fluid potential energy changes the device of kinetic energy into.Flow velocity increased gradually after working fluid got into the larynx mouth, and airspeed peaks when larynx mouth mouth sprays.Suction chamber produces certain negative pressure (draft), thereby driving fluid is introduced suction chamber owing to the jet action of working fluid in suction chamber.The larynx mouth kinetic energy of working fluid is bigger, and the draft that causes is also bigger.For the ejector of certain size, working fluid and driving fluid can keep proportional relationship basically.The fluid of two kinds of different in flow rate reaches the equilibrium of mixed gas speed and the raising of pressure owing to interior friction, bump and action of turbulent flow realize energy interchange in mixing chamber.The diffusion chamber is to make mixed gas kinetic energy become the device of potential energy.The pressure of mixed gas will further raise in the diffusion chamber, and mixed gas pressure is higher than the citation jet body pressure of suction chamber inlet in outlet port, diffusion chamber.From the working principle of ejector and process, can find out that the prime advantage of this mixed form is exactly the unpowered operation of system, need not to consume the extra energy that operating cost is low, energy-conserving and environment-protective.For the utilizable single coal gas of overbottom pressure is arranged, let it as working fluid and adopt the mode of injection to form mixed gas, just reasonable more economically.Secondly this hybrid mode is mixed comparatively even, and the mixed gas quality is better, thereby the pressure that reduces pipe network system falls, and guarantees user's combustion stability, simultaneously, the instrument lag phenomenon is made moderate progress.
Although ejector is simple in structure, its internal gas mechanism of action is very complicated, and in its theoretical calculation, the certain structures size still adopts based on the posterior infromation of One Dimension Analysis method (like larynx mouth distance) at present.The existing larynx mouth of discovering is apart from there being an optimum value, when the larynx mouth apart from greater than optimum value the time, will cause the peripheral bump of jet suction chamber inwall, in suction chamber, form eddy current, reduce mass ratio of induced-to-inducing air.Along with the larynx mouth increases apart from further, this effect meeting is more and more obvious, when serious working fluid is blowed back in the driving fluid, causes the accident.
And the ejector structure of in industrial field, widely using is at present mostly fixed, and promptly the larynx mouth is apart from not changing.Yet some occasion working conditions change is bigger, and this just needs adjustment larynx mouth apart from adapting to the different working conditions environment, so the fixed ejector of structure is difficult to satisfy the working conditions change requirement.
The model utility content
The utility model provides a kind of larynx mouth apart from adjustable ejector, to solve existing ejector larynx mouth apart from not changing, is difficult to satisfy the problem that working conditions change requires.
For this reason, the utility model proposes a kind of larynx mouth apart from adjustable ejector, is used for driving fluid and working fluid are mixed into fluid-mixing, and said larynx mouth comprises apart from adjustable ejector: the larynx mouth; Suction chamber is enclosed in outside the said larynx mouth and with said larynx mouth and is communicated with; Mixing chamber is communicated with said suction chamber; The diffusion chamber is communicated with said mixing chamber; Wherein, Said suction chamber, said mixing chamber, said diffusion chamber connect successively; Have between the inlet of said larynx mouth and said mixing chamber at interval, the said larynx mouth distance that is spaced apart, said larynx mouth is arranged in first housing; Said mixing chamber is arranged in second housing, and said first housing is connected through elastic device with said second housing.
Further, said elastic device is a bellows.
Further, said first housing and said second housing are welded on the two ends of said bellows respectively, and said first housing and said second housing are tubulose.
Further, said larynx mouth also comprises apart from adjustable ejector: have the adjusting connecting rod of screw thread, an end of said adjusting connecting rod connects said first housing, and the other end of said adjusting connecting rod connects said second housing.
Further; Said larynx mouth also comprises apart from adjustable ejector: the fixed plate that extends laterally from said first housing and said second housing respectively; Said bellows is between the fixed plate of the fixed plate of first housing and second housing, and said adjusting connecting rod is connected between the fixed plate of fixed plate and said second housing of said first housing.
Further, said first housing and said second housing are respectively equipped with the sealing closure plate away from an end of said larynx mouth, and the sealing closure plate of first housing is provided with the inlet of said working fluid, and the sealing closure plate of second housing is provided with the outlet of said fluid-mixing.
Further, said diffusion chamber is formed by diffusion chamber flared tube, and said diffusion chamber flared tube is welded on said second housing.
Because the ejector of the utility model; Said larynx mouth is arranged in first housing, and said mixing chamber is arranged in second housing, and said first housing is connected through elastic device with said second housing; So the larynx mouth of the ejector of the utility model is apart from adjustable; Thereby can adjust according to actual conditions, overcome existing ejector larynx mouth apart from not changing, be difficult to satisfy the problem that working conditions change requires.
Further, the utility model adopts bellows to connect first housing and said second housing, has so both guaranteed the larynx mouth apart from adjustable, has guaranteed to have the convenience of the airtight and connection that first housing of cavity is connected with second housing again.
Description of drawings
Fig. 1 is the fundamental diagram that traditional capstan mixes;
Fig. 2 has schematically shown the sectional structure according to the utility model embodiment's the adjustable ejector of larynx mouth distance.
The drawing reference numeral explanation:
1, larynx mouth reducing pipe 11, larynx mouth d, larynx mouth are apart from 2, first housing
23, fixed plate 25, closure plate 3, mixing chamber 4, second housing 43, fixed plate
45, closure plate 5, diffusion chamber 51, diffusion chamber flared tube 6, bellows 7, suction chamber
71, suction chamber reducing pipe 8, adjusting connecting rod 80, nut A, driving fluid B, working fluid
C, fluid-mixing
Embodiment
Understand for technical characteristics, purpose and effect to the utility model have more clearly, contrast the embodiment of description of drawings the utility model at present.
As shown in Figure 2, the utility model proposes a kind of larynx mouth apart from adjustable ejector, is used for mixing two gas, for example, mixes two kinds of single coal gas of different pressures and component.Said larynx mouth comprises apart from adjustable ejector: larynx mouth 11, be positioned at the necking end of larynx mouth reducing pipe 1, and working fluid B is contained in the larynx mouth reducing pipe 1; Suction chamber 7 is enclosed in outside the said larynx mouth 11 and with said larynx mouth 11 and is communicated with, and driving fluid A gets into suction chamber 7 from the inlet of suction chamber 7; Mixing chamber 3 is communicated with said suction chamber 7, and in the mixing chamber, the fluid of two kinds of different in flow rate reaches the equilibrium of mixed gas speed and the raising of pressure owing to interior friction, bump and action of turbulent flow realize energy interchange; Diffusion chamber 5 is communicated with said mixing chamber 3, and the diffusion chamber is to make fluid-mixing kinetic energy become the device of potential energy.The pressure of fluid-mixing will further raise in the diffusion chamber, and fluid-mixing C pressure is higher than the citation jet body pressure of suction chamber inlet in outlet port, diffusion chamber.Wherein, said suction chamber 7, said mixing chamber 5, said diffusion chamber 3 connect successively.Have between the inlet of said larynx mouth 11 and said mixing chamber 3 at interval; The said larynx mouth that is spaced apart is apart from d; Said larynx mouth 11 is arranged in first housing 2, and said mixing chamber 3 is arranged in second housing 4, and said first housing 2 is connected through elastic device with said second housing 4.Said elastic device for example is a bellows 6, can guarantee the convenience of the airtight and connection that first housing is connected with second housing.
As shown in Figure 2, said first housing 2 and said second housing 4 are welded on the two ends of said bellows 6 respectively, and said first housing 2 is tubulose with said second housing 4, for example is the pipe shape, so that make.Said first housing 2 docks through bellows 6 with said second housing 4 and is tightly connected; For example; The length direction of said first housing 2 is identical with the length direction of said second housing 4, and first housing 2 and said second housing, 4 tandem arrays is to reduce kinetic energy rejection.
As shown in Figure 2, said larynx mouth also comprises apart from adjustable ejector: have the adjusting connecting rod 8 of screw thread, connect said first housing 2 and said second housing 4.Can adjust the extending amount of bellows 6 through tightening the nut of regulating on the connecting rod 8 80, it is stable to guarantee that said first housing 2 is connected with said second housing 4, and in the assurance work, the larynx mouth is stable apart from d's, and when adjusting the larynx mouth apart from d, adjustment accurately.
As shown in Figure 2; Said larynx mouth also comprises apart from adjustable ejector: the fixed plate that extends laterally from said first housing 2 and said second housing 4 respectively; Said bellows 6 is between the fixed plate 43 of the fixed plate 23 of first housing and second housing; Said adjusting connecting rod 8 is connected between the fixed plate 43 of fixed plate 23 and said second housing of said first housing, and for example, the bearing of trend of regulating connecting rod 8 is identical or identical with the bearing of trend of said second housing 4 with the bearing of trend of first housing 2.The utility model can be provided with a plurality of adjusting connecting rods 8 and fixed plate 23 and fixed plate 43, and for example, a plurality of adjusting connecting rods 8 and fixed plate 23 and fixed plate 43 evenly are arranged on the side direction of first housing 2 and second housing 4, so that stressed even, connect firm.
As shown in Figure 2; Said first housing 2 is respectively equipped with sealing closure plate 25 and seals closure plate 45 with the end of said second housing 4 away from said larynx mouth; Only reserve the outlet of the inlet and the fluid-mixing of working fluid, reveal to prevent said first housing 2 and said second housing 4.
As shown in Figure 2; Larynx mouth reducing pipe 1 usefulness fixed plate is welded on first housing 2; Suction chamber 7 is formed by the annular space between larynx mouth reducing pipe 1 and the suction chamber reducing pipe 71; Mixing chamber 3 is formed by the mixing chamber steel pipe, and said diffusion chamber 5 is formed by diffusion chamber flared tube 51, and said suction chamber reducing pipe 71, mixing chamber steel pipe and diffusion chamber flared tube 51 are welded on said second housing 4.The larynx mouth is provided with driving fluid inlet, the inlet of working fluid and the outlet of fluid-mixing apart from adjustable ejector, and these three interfaces are connected with separately medium pipeline by flange.
The larynx mouth of the utility model is apart from adjustment process: screw and regulate the nut 80 at connecting rod two ends; Make fixed plate 25 and fixed plate 45 each other near; Thereby drive first housing 2, second housing, 4 extruding bellowss 6; This moment, the larynx mouth reducing pipe 1 with the 2 solid welderings of first housing moved to mixing chamber 3 directions, and the larynx mouth just reduces apart from d accordingly like this.The process of increase larynx mouth distance in contrast.The utility model can be through adjustment larynx mouth apart from making ejector always work in the optimum state point; Both kept optimum mass ratio of induced-to-inducing air; Thereby make the work that lead-jetting device can be steady in a long-term, and avoided because the danger that fluid flows backwards appears in the variation of working medium operating mode.
The above is merely the schematic embodiment of the utility model, is not in order to limit the scope of the utility model.For each constituent element of the utility model can make up under the condition of not conflicting each other; Any those skilled in the art; Equivalent variations of under the prerequisite of design that does not break away from the utility model and principle, having done and modification all should belong to the scope that the utility model is protected.
Claims (7)
1. a larynx mouth is used for driving fluid and working fluid are mixed into fluid-mixing apart from adjustable ejector, and said larynx mouth comprises apart from adjustable ejector: the larynx mouth; Suction chamber is enclosed in outside the said larynx mouth and with said larynx mouth and is communicated with; Mixing chamber is communicated with said suction chamber; The diffusion chamber is communicated with said mixing chamber; Wherein, Said suction chamber, said mixing chamber, said diffusion chamber connect successively, have at interval the said larynx mouth distance that is spaced apart between the inlet of said larynx mouth and said mixing chamber; It is characterized in that; Said larynx mouth is arranged in first housing, and said mixing chamber is arranged in second housing, and said first housing is connected through elastic device with said second housing.
2. larynx mouth as claimed in claim 1 is characterized in that apart from adjustable ejector said elastic device is a bellows.
3. larynx mouth as claimed in claim 2 is characterized in that apart from adjustable ejector said first housing and said second housing are welded on the two ends of said bellows respectively, and said first housing and said second housing are tubulose.
4. larynx mouth as claimed in claim 2 is apart from adjustable ejector; It is characterized in that; Said larynx mouth also comprises apart from adjustable ejector: have the adjusting connecting rod of screw thread, an end of said adjusting connecting rod connects said first housing, and the other end of said adjusting connecting rod connects said second housing.
5. larynx mouth as claimed in claim 4 is apart from adjustable ejector; It is characterized in that; Said larynx mouth also comprises apart from adjustable ejector: the fixed plate that extends laterally from said first housing and said second housing respectively; Said bellows is between the fixed plate of the fixed plate of first housing and second housing, and said adjusting connecting rod is connected between the fixed plate of fixed plate and said second housing of said first housing.
6. larynx mouth as claimed in claim 1 is apart from adjustable ejector; It is characterized in that; Said first housing and said second housing are respectively equipped with the sealing closure plate away from an end of said larynx mouth; The sealing closure plate of first housing is provided with the inlet of said working fluid, and the sealing closure plate of second housing is provided with the outlet of said fluid-mixing.
7. larynx mouth as claimed in claim 1 is characterized in that apart from adjustable ejector said diffusion chamber is formed by diffusion chamber flared tube, and said diffusion chamber flared tube is welded on said second housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202958642U CN202176556U (en) | 2011-08-15 | 2011-08-15 | Injector with adjustable nozzle distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202958642U CN202176556U (en) | 2011-08-15 | 2011-08-15 | Injector with adjustable nozzle distance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202176556U true CN202176556U (en) | 2012-03-28 |
Family
ID=45866437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202958642U Expired - Lifetime CN202176556U (en) | 2011-08-15 | 2011-08-15 | Injector with adjustable nozzle distance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202176556U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195469A (en) * | 2013-04-09 | 2013-07-10 | 重庆大学 | Pneumatic type gas and slag separation device and method |
| CN104675760A (en) * | 2015-02-13 | 2015-06-03 | 浙江大学 | Nozzle-adjustable steam ejector |
| CN105650039A (en) * | 2016-03-15 | 2016-06-08 | 江苏大学 | Jet pump allowing distance between venturi and nozzle to be changed |
| CN106140513A (en) * | 2016-08-12 | 2016-11-23 | 甘正棠 | A kind of multifuncion injector |
| CN106678087A (en) * | 2017-03-08 | 2017-05-17 | 华北电力大学（保定） | Device used for adjusting basic state parameters of working medium |
| CN106968653A (en) * | 2017-03-28 | 2017-07-21 | 中海石油(中国)有限公司 | Offshore platform adjustable jet pump flood pattern and its control device and control method |
| CN108457863A (en) * | 2018-01-23 | 2018-08-28 | 宁波沃力机电有限公司 | A kind of big flow jet pump |
| WO2021035267A1 (en) * | 2019-08-27 | 2021-03-04 | Avl List Gmbh | Ejector arrangement and electrochemical reactor |
| CN114251309A (en) * | 2022-02-24 | 2022-03-29 | 国家电投集团氢能科技发展有限公司 | Ejector and fuel cell system with same |
-
2011
- 2011-08-15 CN CN2011202958642U patent/CN202176556U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195469A (en) * | 2013-04-09 | 2013-07-10 | 重庆大学 | Pneumatic type gas and slag separation device and method |
| CN104675760A (en) * | 2015-02-13 | 2015-06-03 | 浙江大学 | Nozzle-adjustable steam ejector |
| CN105650039B (en) * | 2016-03-15 | 2019-04-30 | 江苏大学 | A kind of larynx mouth is away from variable jet pump |
| CN105650039A (en) * | 2016-03-15 | 2016-06-08 | 江苏大学 | Jet pump allowing distance between venturi and nozzle to be changed |
| CN106140513A (en) * | 2016-08-12 | 2016-11-23 | 甘正棠 | A kind of multifuncion injector |
| CN106678087A (en) * | 2017-03-08 | 2017-05-17 | 华北电力大学（保定） | Device used for adjusting basic state parameters of working medium |
| CN106968653A (en) * | 2017-03-28 | 2017-07-21 | 中海石油(中国)有限公司 | Offshore platform adjustable jet pump flood pattern and its control device and control method |
| CN108457863A (en) * | 2018-01-23 | 2018-08-28 | 宁波沃力机电有限公司 | A kind of big flow jet pump |
| CN108457863B (en) * | 2018-01-23 | 2020-11-27 | 宁波沃力科技有限公司 | High-flow injection pump |
| WO2021035267A1 (en) * | 2019-08-27 | 2021-03-04 | Avl List Gmbh | Ejector arrangement and electrochemical reactor |
| AT522904A1 (en) * | 2019-08-27 | 2021-03-15 | Avl List Gmbh | Ejector assembly and electrochemical reactor |
| AT522904B1 (en) * | 2019-08-27 | 2021-07-15 | Avl List Gmbh | Ejector assembly and electrochemical reactor |
| CN114251309A (en) * | 2022-02-24 | 2022-03-29 | 国家电投集团氢能科技发展有限公司 | Ejector and fuel cell system with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202176556U (en) | Injector with adjustable nozzle distance | |
| WO2016165313A1 (en) | Multistage decompression and micro-flow atomizing nozzle | |
| CN201916260U (en) | Steam ejector with adjustable nozzle | |
| CN201705741U (en) | Sprayer capable of adjusting the distance between a nozzle and a mixing chamber inlet and the nozzle critical section | |
| CN112901566A (en) | Fuel cell ejector with adjustable working nozzle | |
| CN201200870Y (en) | Pigment mixing head with adjustable spray nozzle | |
| CN201599488U (en) | High differential pressure regulating valve | |
| CN103453525B (en) | The using method of oxygen-enriched burner | |
| CN203591902U (en) | High-pressure injection liquefier | |
| CN211501654U (en) | Satisfy governing valve that bubble level let out leakage quantity under hard seal | |
| CN112058110A (en) | Double-adjusting ejector | |
| CN203517796U (en) | Oxygen-enriched combustor | |
| CN2913752Y (en) | Piston type back pressure valve | |
| CN110541847A (en) | Combined steam injection device | |
| CN202861388U (en) | Novel steel ladle baking device | |
| CN203146450U (en) | Novel temperature and pressure reducer | |
| CN203770764U (en) | Carbon dioxide pressure reducing valve | |
| CN206599553U (en) | A kind of adjustable liquefaction injector of material | |
| CN215370384U (en) | Fuel cell ejector with adjustable working nozzle | |
| CN215211287U (en) | Combined flow regulating structure adaptable to large-diameter pipeline and large-amplitude water level | |
| CN210048717U (en) | Process burner device with central oxygen adjusting function | |
| CN206092983U (en) | Steam energy -saving device | |
| CN203685394U (en) | Disturbing ring structure of uniform gas temperature field | |
| CN202844903U (en) | Split-type solution mixing device | |
| CN202252235U (en) | Flow rate measuring and control device for diamond valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120328 |