CN103611642A - Steam pressure-rising ejector - Google Patents

Steam pressure-rising ejector Download PDF

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Publication number
CN103611642A
CN103611642A CN201310648501.6A CN201310648501A CN103611642A CN 103611642 A CN103611642 A CN 103611642A CN 201310648501 A CN201310648501 A CN 201310648501A CN 103611642 A CN103611642 A CN 103611642A
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CN
China
Prior art keywords
steam
receiving chamber
ejection
chamber
fluids
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.)
Pending
Application number
CN201310648501.6A
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Chinese (zh)
Inventor
张文福
陈朝学
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SICHUAN JINYU HUAJI CO Ltd
Original Assignee
SICHUAN JINYU HUAJI CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SICHUAN JINYU HUAJI CO Ltd filed Critical SICHUAN JINYU HUAJI CO Ltd
Priority to CN201310648501.6A priority Critical patent/CN103611642A/en
Publication of CN103611642A publication Critical patent/CN103611642A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles

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Abstract

The invention relates to a steam pressure-rising ejector which comprises a drive steam inlet pipe, a receiving chamber, an ejection fluid air inlet pipe, a mixing chamber and a diffusion chamber. The steam inlet pipe is provided with a nozzle, drive steam is ejected from the nozzle, the ejection effect drives ejection fluids to enter the receiving chamber, and then the ejection fluids and the drive steam together form mixed fluids and enter the mixing chamber. In the mixing chamber, the speed of the ejection fluids and the speed of the drive steam gradually become consistent and then the ejection fluids and the drive steam enter the diffusion chamber. The pressure of mixed fluids of the diffusion chamber is larger than that of the ejection fluids in the receiving chamber, and accordingly the equipment is called the steam pressure-rising ejector. In terms of selection of the diameter of the ejection fluid air inlet pipe, a pipe with the diameter of 650 millimeters is selected. The ejector can be used for the chemical industry, such as production of urea.

Description

Raise steam injector
Technical field
The present invention relates to a kind of injector, concrete is a kind of raise steam injector.
Background technology
Raise steam injector is a kind of two kinds of different gases of pressure can mixing, and their produce powers are changed mutually, becomes the device of pressure mist placed in the middle.Its operation principle is: before access to plant, the higher working media fluid of pressure drives steam, enters the receiving chamber of injector with higher speed from nozzle ejection, and causing injection effect.Driving fluid enters receiving chamber from driving fluid air inlet pipe, and follows and drive steam to enter mixing chamber, and a part of kinetic energy of this proceduredriven steam is passed to driving fluid, and forms fluid-mixing.In mixing chamber fluid-mixing speed gradually equilibrium enter diffuser casing, with pressure, raise simultaneously.The pressure of diffuser casing outlet is greater than the pressure of receiving chamber's jet body.
The injection effect of raise steam injector and driving fluid air inlet diameter, driving fluid composition have much relations.In urea production equipment, it is the air inlet pipe of 950 millimeters that prior art is selected caliber conventionally, and caliber is large and injection effect is general.
Summary of the invention
Technical problem to be solved by this invention is: a kind of raise steam injector of injection better effects if is provided, comprises and drive steam inlet duct, receiving chamber, driving fluid air inlet pipe, mixing chamber and diffuser casing, steam inlet duct is provided with nozzle.Driving fluid air inlet pipe diameter De=650 millimeter.
Further: in receiving chamber, be also provided with at least one straight section descaling device, this straight section descaling device comprises clean steam inlet duct, clean pipe and lug.Described clean steam inlet duct is communicated with clean pipe, cleans between Guan Yu receiving chamber inwall and is provided with lug.Described clean pipe is provided with several over against the lancing door of receiving chamber's inwall.
Compared with the prior art, the invention has the beneficial effects as follows: compare with selecting the injector of 950 millimeters of caliber driving fluid air inlet pipe, select the injector of 650 millimeters of calibers, injection better effects if, and the less material cost of caliber is lower.
Accompanying drawing explanation
Fig. 1 is the front view of one embodiment of the invention;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is that the profile of Fig. 1 has illustrated straight section descaling device installation site;
Fig. 4 is the detail drawing of straight section descaling device;
In figure, parts Reference numeral is: 101-drives steam inlet duct, 102-receiving chamber, 103-driving fluid air inlet pipe, 104-mixing chamber, 105-diffuser casing, 106-nozzle, 110-straight section descaling device, the clean steam inlet duct of 111-, the clean pipe of 112-, 113-lancing door, 114-lug, 122-to accept locular wall.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further described: as shown in Figure 1, Figure 2, Figure 3 and Figure 4:
The present embodiment is a kind of raise steam injector using in urea production, comprises and drives steam inlet duct 101, receiving chamber 102, driving fluid air inlet pipe 103, mixing chamber 104, diffuser casing 105, drives steam inlet duct 101 to be provided with nozzle 106.
Driving fluid air inlet pipe 103 caliber De have a significant impact the injection effect of steam jet ejector.Driving fluid air inlet pipe 103 calibers for the steam jet ejector of urea production in prior art are got De=950 millimeter.In urea production in process, driving fluid is conventionally by 5.92% CO 2, 9.68% NH 3, 72.82% H 2o, 0.34% air, 0.09% inert gas and 11.15% Ur form, and gas kilomol quality is 20.2Kg/Kmol.Maximum stream flow is designed to 2353.8Kg/h, and the flux scale side that can try to achieve gas per hour is 2610.1544 cubic metres.According to gas venting formula Q=113P 1so (273/413) 0.5, gas effective area So=139268 square millimeter.According to venturi principle, discharge coefficient: α=0.598, numerical value when α value 0.598 produces maximum aspiration vacuum effect for injector, aperture coefficient: β=0.8.The caliber De=2 of driving fluid air inlet pipe 103 So/(3.14 β α) ］ 0.5=609 millimeters, 650 millimeters of selecting in general caliber to approach the most with it of the present embodiment.Conventionally 950 millimeters of the calibers of selecting compared to existing technology, the less and injection better effects if of the caliber of 650 millimeters, citation jet body pressure is larger.
In receiving chamber 102, be also provided with at least one straight section descaling device 110, this straight section descaling device 110 comprises clean steam inlet duct 111, clean pipe 112 and lug 114.Described clean steam inlet duct 111 is communicated with clean pipe 112, cleans between Guan112Yu receiving chamber 102 inwalls and is provided with lug 114; Described clean pipe 112 is provided with several over against the lancing door 113 of receiving chamber's 102 inwalls.
The operation principle of raise steam injector is: drive steam by driving steam inlet duct 101, by nozzle 106, sprayed.Because injection effect, driving fluid enters receiving chamber 102 from driving fluid air inlet pipe 103, and follows and drive steam to enter mixing chamber 104.In mixing chamber 104, a part of kinetic energy of working steam is passed to driving fluid, and forms fluid-mixing.Gradually balanced in the interior fluid-mixing speed of mixing chamber 104, and enter diffuser casing 105, with pressure, raise simultaneously.The pressure of fluid-mixing when diffuser casing 105 outlet will be greater than the pressure of receiving chamber's 102 jet bodies.
When entering receiving chamber 102, driving fluid may carry solid particle, solid urea for example, and part solid particle can be attached on the inwall of receiving chamber 102.In the present embodiment, with high steam, by clean steam inlet duct 111, enter clean pipe 112, finally, from lancing door 113 ejections, wash away receiving chamber's 102 inwalls, thereby play the effect of clean receiving chamber 102.It should be noted that: in clean receiving chamber 102 inwalls from lancing door 113 part away from more, the effect of cleaning steam is poorer.Should make as much as possible lancing door 113 relatively clean receiving chamber's 102 inwalls is uniformly distributed.

Claims (2)

1. raise steam injector, comprise and drive steam inlet duct (101), receiving chamber (102), driving fluid air inlet pipe (103), mixing chamber (104) and diffuser casing (105), steam inlet duct (101) is provided with nozzle (106), it is characterized in that: driving fluid air inlet pipe (103) diameter De=650 millimeter.
2. raise steam injector as claimed in claim 1, it is characterized in that: in receiving chamber (102), be also provided with at least one straight section descaling device (110), this straight section descaling device (110) is provided with clean steam inlet duct (111), clean pipe (112) and lug (114);
Described clean steam inlet duct (111) is communicated with clean pipe (112), between clean pipe (112) and receiving chamber (102) wall, is provided with lug (114); Described clean pipe (112) is provided with several over against the lancing door (113) of receiving chamber (102) locular wall.
CN201310648501.6A 2013-12-04 2013-12-04 Steam pressure-rising ejector Pending CN103611642A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310648501.6A CN103611642A (en) 2013-12-04 2013-12-04 Steam pressure-rising ejector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310648501.6A CN103611642A (en) 2013-12-04 2013-12-04 Steam pressure-rising ejector

Publications (1)

Publication Number Publication Date
CN103611642A true CN103611642A (en) 2014-03-05

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CN201310648501.6A Pending CN103611642A (en) 2013-12-04 2013-12-04 Steam pressure-rising ejector

Country Status (1)

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CN (1) CN103611642A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106404405A (en) * 2016-09-09 2017-02-15 西安航天动力试验技术研究所 Apparatus for injecting tail gas and inflow hot air in vacuum cabin of ramjet
CN107512248A (en) * 2017-07-17 2017-12-26 吴寿林 A kind of vehicle cleaning maintenance of equipment
CN107739036A (en) * 2017-09-18 2018-02-27 华电电力科学研究院 A kind of dry type urea pyrolysis ammonia system and method
CN108492465A (en) * 2018-03-19 2018-09-04 苏州市春菊电器有限公司 A kind of automatic selling water system based on cleaning control

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005026586A1 (en) * 2005-06-08 2006-12-14 Hydro-Elektrik Gmbh System for cleaning the insides of large tanks and containers with a pendant support with controlled flow of cleaning fluids to spray heads
CN201949953U (en) * 2011-02-28 2011-08-31 中国石油化工集团公司 High-efficiency energy-saving nozzle and steam injection pump with nozzle
JP2013019405A (en) * 2011-07-12 2013-01-31 Tadao Hirokawa Pressure fluid energy converting device of jet pump
CN202833347U (en) * 2012-10-17 2013-03-27 南通赛孚机械设备有限公司 Steam injection vacuum pump low resistance nozzle structure
CN202971352U (en) * 2012-12-18 2013-06-05 湖南凌天科技有限公司 Jet pump for oil return of water source heat pump air conditioning compressor
CN203140199U (en) * 2013-04-02 2013-08-21 中广核工程有限公司 Nuclear-grade ejector
CN203292143U (en) * 2013-05-10 2013-11-20 山西太钢不锈钢股份有限公司 Pipeline dredging device
CN203565236U (en) * 2013-12-04 2014-04-30 四川锦宇化机有限公司 Steam pressure boosting ejector with cleaning device
CN203578057U (en) * 2013-12-04 2014-05-07 四川锦宇化机有限公司 Steam pressure boost injector

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005026586A1 (en) * 2005-06-08 2006-12-14 Hydro-Elektrik Gmbh System for cleaning the insides of large tanks and containers with a pendant support with controlled flow of cleaning fluids to spray heads
CN201949953U (en) * 2011-02-28 2011-08-31 中国石油化工集团公司 High-efficiency energy-saving nozzle and steam injection pump with nozzle
JP2013019405A (en) * 2011-07-12 2013-01-31 Tadao Hirokawa Pressure fluid energy converting device of jet pump
CN202833347U (en) * 2012-10-17 2013-03-27 南通赛孚机械设备有限公司 Steam injection vacuum pump low resistance nozzle structure
CN202971352U (en) * 2012-12-18 2013-06-05 湖南凌天科技有限公司 Jet pump for oil return of water source heat pump air conditioning compressor
CN203140199U (en) * 2013-04-02 2013-08-21 中广核工程有限公司 Nuclear-grade ejector
CN203292143U (en) * 2013-05-10 2013-11-20 山西太钢不锈钢股份有限公司 Pipeline dredging device
CN203565236U (en) * 2013-12-04 2014-04-30 四川锦宇化机有限公司 Steam pressure boosting ejector with cleaning device
CN203578057U (en) * 2013-12-04 2014-05-07 四川锦宇化机有限公司 Steam pressure boost injector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106404405A (en) * 2016-09-09 2017-02-15 西安航天动力试验技术研究所 Apparatus for injecting tail gas and inflow hot air in vacuum cabin of ramjet
CN107512248A (en) * 2017-07-17 2017-12-26 吴寿林 A kind of vehicle cleaning maintenance of equipment
CN107739036A (en) * 2017-09-18 2018-02-27 华电电力科学研究院 A kind of dry type urea pyrolysis ammonia system and method
CN108492465A (en) * 2018-03-19 2018-09-04 苏州市春菊电器有限公司 A kind of automatic selling water system based on cleaning control

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Application publication date: 20140305

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