CN105889143A - Adjustable steam jet heat pump - Google Patents
Adjustable steam jet heat pump Download PDFInfo
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- CN105889143A CN105889143A CN201510023225.3A CN201510023225A CN105889143A CN 105889143 A CN105889143 A CN 105889143A CN 201510023225 A CN201510023225 A CN 201510023225A CN 105889143 A CN105889143 A CN 105889143A
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Abstract
The invention relates to an adjustable steam jet heat pump which is composed of a high-pressure driving steam sucking-in chamber, a steam control membrane head, a valve straight rod, a nozzle, a low-pressure steam chamber, a diffusion pipeline, a pressure sensor and an A/D converter. The steam control membrane head is mounted at the upper end of the high-pressure driving steam sucking-in chamber, and the valve straight rod is connected with the steam control membrane head and coaxial with the nozzle; the pressure sensor is mounted on a steam outlet pipeline, measured pressure change signals are transmitted to the steam control membrane head through the A/D converter, the valve straight rod is driven to move in the axial direction, the effective actual internal area of the nozzle is adjusted, and stable mixed steam pressure is reached. By means of the adjustable steam jet heat pump, heat pump outlet steam with stable pressure can be obtained, the adjustability is good, operation is stable, the structure is suitable, and the adjustable steam jet heat pump can be widely applied to industrial operation such as heat pump evaporation, high-temperature condensate water steam recovery, heat pump drying, heat pump rectification, starch jetting and liquidation and superheated steam humidification.
Description
Technical field
The present invention relates to a kind of adjustable steam jet heat pump, automatically control driving steam jet outlet effectively stream particularly to one
The steam jet heat pump of logical sectional area, belongs to technical field of heat pumps.
Background technology
Steam jet heat pump is a kind of device making low-pressure steam boost by high steam, mainly by high steam jet
Cause the heat exchange of low-pressure steam and high steam, thus reach the purpose of low-pressure steam boosting reuse.Its function also includes low
Pressure steam, flash-off steam and the boosting recycling of equipment steam discharge.At present, the steam jet heat pump of application in domestic production,
Mixed vapour pressure for heat pump outlet has particular demands, when high steam, low-pressure steam or outlet back pressure have fluctuation
Waiting, the steam pressure of heat pump outlet is just unable to reach requirement, needs to design jet exit nozzle steam-sprayed of different-diameter
Heat pump, meets the steam pressure requirement of heat pump outlet, thus causes having to due to the change of operating mode using new, special
Determining the heat pump of parameter, thus bring use inconvenience, performance-adjustable is poor.Chinese patent ZL201020015596.X provides one
Steam jet heat pump, without automaton, drives steam (vapor) outlet sectional area to fix, poor for applicability；Patent ZL99255011.4
Mixing for vapour-liquid, be only the version devising steam with liquid mixing chamber, structure is complicated, without automatically controlling；Patent
It is perforating that ZL201120016636.7 changes inlet valve cored structure, and aisle spare is fixed, and structure is complicated, also cannot realize injection
Being automatically adjusted of cross section；Although Chinese patent ZL201220266028.6 achieves automatically controlling of heat pump, but pressure is passed by it
Sensor is arranged on air inlet pipeline, it is impossible to guaranteeing stablizing of heat pump outlet pressure, separately its low-pressure admission pipeline uses two sections of straight pipes
Right angle connects, and causes low pressure admission flow losses to increase.Therefore, develop the high performance driving steam jet that automatically controls to export
Effective actual internal area and then the steam jet heat pump realizing outlet pressure stable are particularly important.
The present invention seeks to overcome the deficiency of existing steam jet heat pump, it is provided that a kind of adjustable steam jet heat pump.This is adjustable
Steam jet heat pump can either self adaptation high steam, low-pressure steam and the fluctuation of heat pump outlet back pressure, it is ensured that heat pump outlet mixing
Steam pressure meets working condition requirement, and regulation performance is good, stable operation, and simple in construction is easily manufactured.
Summary of the invention
The technical problem to be solved in the present invention is: providing a kind of novel steam jet heat pump, this heat pump is by automatically controlling dress
Put, automatically change high drive steam jet and export effective actual internal area, thus change high drive steam flowing velocity, enter
And change mass ratio of induced-to-inducing air, it is possible to utilize the high and low pressure steam under different working condition, it is also possible to self adaptation heat pump outlet back pressure
Pressure oscillation, thus improve work efficiency, reduce cost.
In order to solve the problems referred to above, the present invention is achieved through technology,
A kind of adjustable steam jet heat pump, including high drive steam suction chamber, automatic steam control film head, valve straight-bar, nozzle,
Low pressure steam chest, diffusion pipeline, pressure transducer and A/D converter.High drive steam suction chamber is welded by cylindrical pipe
Form；Automatic steam control film head is arranged on driving steam suction chamber housing upper end, passes through flange seal with driving steam suction chamber housing
Connect；Valve straight-bar is connected with automatic steam control film head, and coaxial with the nozzle being positioned at high drive steam suction chamber；Nozzle with
High drive steam suction chamber connects；Low pressure steam chest is made up of bend pipe, the fine vacuum formed by the flowing of high drive steam at high
Suck low-pressure steam；Diffusion pipeline is made up of a cylindrical section and two sections of cone cylinder, extends along steam flow direction, becomes mixed vapour
Outlet；Pressure transducer is arranged on the exit of diffusion pipeline, measures the change of diffusion pipe outlet mixed vapour pressure；By pressure
The pressure signal that sensor records, is converted to the signal of telecommunication by A/D converter, passes to automatic steam control film head, by controlling film head
Band movable valve straight-bar is axially moveable, and is regulated effective actual internal area of jet expansion by the conical head on valve straight-bar, from
And control the throughput of high drive steam, reach stable mixed vapour pressure.
Valve straight-bar is positioned at high drive steam suction chamber, and coaxial with nozzle, and its head is taper reality head, and tapering angle is
1 °～89 °.
Valve straight-bar, by axial displacement, expands or shrinks the spacing between described nozzle, thus controls to drive steam spray
Effective actual internal area of mouth outlet, and then regulation high drive steam flowing velocity, change mass ratio of induced-to-inducing air.
Nozzle is connected by tapered conical pipe and flaring conical pipe and forms, and tapered conical pipe the most progressively reduces, its cone angle be 1 °～
89 °, flaring conical pipe the most progressively expands, and its cone angle is 1 °～89 °.
High drive steam suction chamber housing is cylindrical tube, is provided with air inlet near steam control valve end side.
Have employed technique scheme, the invention has the beneficial effects as follows:
Being flowed out mixed vapour by heat pump, the pressure change of pressure transducer sensing mixed vapour, pressure signal is turned by A/D converter
Changing the signal of telecommunication into, pass to automatic steam control film head, automatic steam control film head changes according to the pressure of mixed vapour, band brake control valve door
Moving axially of straight-bar, by moving axially of valve straight-bar, changes the annular space size between valve straight-bar and jet expansion, from
And change effective actual internal area and the jet velocity of high steam of nozzle, and then change mass ratio of induced-to-inducing air.The change of mass ratio of induced-to-inducing air,
The mixing ratio making high drive steam and low-pressure steam changes, thus the satisfactory mixed vapour of output.
Therefore, the present invention, compared with existing jet heat pump, has prominent advantage and is: (1) can either self adaptation high steam,
Low-pressure steam and the fluctuation of heat pump outlet back pressure, thus improve work efficiency, reduce running cost；(2) guarantee that heat pump outlet is mixed
Close steam pressure and meet working condition requirement；(3) performance is good, stable operation in regulation, and simple in construction is easily manufactured.
A kind of adjustable steam jet heat pump that the present invention provides, structurally achieves scalable, operationally achieves automatically
Control, provide great convenience for reality application, can be widely applied to thermo-compression evaporation, high-temperature condensation water recovered steam, heat pump
Be dried, heat pump distillation, starch spray the industrial operations such as liquefaction, superheated steam humidification.
Accompanying drawing explanation
Accompanying drawing is the structural representation of the present invention.
In accompanying drawing: 1. high drive steam suction chamber；2. automatic steam control film head；3. valve straight-bar；4. nozzle；The lowest
Pressure vaporium；6. diffusion pipeline；7. pressure transducer；8.A/D transducer.
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings.As it is shown in figure 1, high drive steam suction chamber 1 upper end flange
It is tightly connected automatic steam control film head 2, on the right side of high drive steam suction chamber 1, has high pressure steam inlet, by pipeline and height
Pressure vapour system communicates, and high drive steam is entered by high steam pipeline and drives steam suction chamber 1.Automatic steam control film head 2 is even
Connecing valve straight-bar 3, valve straight-bar 3 gos deep into high drive steam suction chamber 1, the conical head of valve straight-bar 3 close to nozzle 4, and
It is positioned on same axis with nozzle 4.Low pressure steam chest 5 is made up of bend pipe, the Gao Zhen formed by the flowing of high drive steam at high
Suction enters low-pressure steam.Low pressure steam chest 5 is tightly connected with diffusion pipeline 6, forms mixed vapour passage, says at diffuser pipe
Pressure transducer 7 is installed at Kou, changes in order to measure the pressure oscillation of diffusion pipe outlet mixed vapour, the change of this pressure
Signal utilizes leading conductive to A/D converter, passes to automatic steam control film head 2 after signal is changed.Automatic steam control film head 2 basis
The pressure change of diffusion pipe outlet mixed vapour, controls the axial displacement of valve straight-bar 3, axial by valve straight-bar 3
Displacement, changes the axial distance of valve straight-bar 3 and conical nozzle 4, adjusts the annular space between valve straight-bar 3 and nozzle 4 outlet
Size, thus change effective cross-sectional flow area and the flowing velocity of high steam of nozzle, and then change mass ratio of induced-to-inducing air.Injection
The change of coefficient so that the mixing ratio of high steam and low-pressure steam changes, thus the mixing that output meets production requirement is steamed
Steam pressure.The present invention is a kind of adjustable steam jet heat pump, and regulation performance is good, strong adaptability, the pressure of high drive steam
Range of accommodation, between ± 30%～± 70%, may be implemented in the condition of diffusion pipe outlet mixed vapour pressure change in elevation fluctuation
Lower stable operation.
Last it is noted that above example only in order to the present invention is described and and unrestricted technical scheme described in the invention；
Therefore, although this specification with reference to the above embodiments to present invention has been detailed description, but, this area common
It will be appreciated by the skilled person that still the present invention can be modified or equivalent；And all are without departing from the spirit of the present invention
With technical scheme and the improvement thereof of scope, it all should be contained in the middle of scope of the presently claimed invention.
Claims (5)
1. an adjustable steam jet heat pump, it is characterised in that: include high drive steam suction chamber, automatic steam control film head,
Valve straight-bar, nozzle, low pressure steam chest, diffusion pipeline, pressure transducer and A/D converter.Described high drive steam is inhaled
Enter the room and be welded by cylindrical pipe；Described automatic steam control film head is arranged on high drive steam suction chamber housing upper end, with
High drive steam suction chamber housing is connected by flange seal；Described valve straight-bar is connected with automatic steam control film head, and with spray
Mouth is coaxial；Described nozzle connects with driving steam suction chamber；Described low pressure steam chest is made up of bend pipe, steams by high drive
The fine vacuum that vapour flow at high speed is formed sucks low-pressure steam, mixes with the low-pressure steam entered；Described diffusion pipeline is by one section of circle
Cylinder and two sections of cone cylinder compositions, extend along steam flow direction, become mixed vapour outlet；Described pressure transducer is arranged on expansion
Pressure pipeline exit, changes in order to measure the pressure of diffusion pipe outlet mixed vapour；The pressure signal recorded by pressure transducer,
Be converted to the signal of telecommunication by described A/D converter, pass to automatic steam control film head, by controlling film headband movable valve straight-bar vertically
Mobile, regulated effective actual internal area of jet expansion by the conical head on valve straight-bar, thus control high drive steam
Throughput, reach stable mixed vapour pressure.
2. a kind of adjustable steam jet heat pump as claimed in claim 1, it is characterised in that: described valve straight-bar is positioned at described
Driving steam suction chamber in, and coaxial with described nozzle, its head is taper reality head, and tapering angle is 1 °～89 °.
3. a kind of adjustable steam jet heat pump as claimed in claim 1, it is characterised in that: described valve straight-bar is by axially
Displacement, expand or shrink the spacing between described nozzle, thus control to drive the effectively circulation of steam jet outlet to cut
Area.
4. a kind of adjustable steam jet heat pump as claimed in claim 1, it is characterised in that: described nozzle is by tapered conical pipe
Connecting composition with flaring conical pipe, tapered conical pipe the most progressively reduces, and its cone angle is 1 °～89 °, and flaring conical pipe is along axle
To progressively expanding, its cone angle is 1 °～89 °.
5. a kind of adjustable steam jet heat pump as claimed in claim 1, it is characterised in that: described high drive steam sucks
Room housing is cylindrical tube, is provided with air inlet near steam control valve end side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510023225.3A CN105889143A (en) | 2015-01-16 | 2015-01-16 | Adjustable steam jet heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510023225.3A CN105889143A (en) | 2015-01-16 | 2015-01-16 | Adjustable steam jet heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105889143A true CN105889143A (en) | 2016-08-24 |
Family
ID=56999576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510023225.3A Pending CN105889143A (en) | 2015-01-16 | 2015-01-16 | Adjustable steam jet heat pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN105889143A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893783A (en) * | 2017-11-24 | 2018-04-10 | 中国兵器工业第五九研究所 | A kind of fluid entrainment pump and fluid transport pipeline |
| CN113187770A (en) * | 2021-06-08 | 2021-07-30 | 郭孝国 | Water jet air extractor |
| CN113389759A (en) * | 2021-06-21 | 2021-09-14 | 郭孝国 | Injection device |
| CN114135525A (en) * | 2020-09-02 | 2022-03-04 | 中国石油化工股份有限公司 | Adjustable ejector and high-pressure and low-pressure gas well co-production gas-liquid mixed transportation system |
| CN114382732A (en) * | 2020-10-21 | 2022-04-22 | 中国科学院理化技术研究所 | Low-temperature hydrogen ejector |
| CN115234526A (en) * | 2022-07-25 | 2022-10-25 | 中国华能集团清洁能源技术研究院有限公司 | Hot press and method for outputting pressure thereof |
-
2015
- 2015-01-16 CN CN201510023225.3A patent/CN105889143A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893783A (en) * | 2017-11-24 | 2018-04-10 | 中国兵器工业第五九研究所 | A kind of fluid entrainment pump and fluid transport pipeline |
| CN107893783B (en) * | 2017-11-24 | 2019-10-18 | 中国兵器工业第五九研究所 | A kind of fluid entrainment pump and fluid transport pipeline |
| CN114135525A (en) * | 2020-09-02 | 2022-03-04 | 中国石油化工股份有限公司 | Adjustable ejector and high-pressure and low-pressure gas well co-production gas-liquid mixed transportation system |
| CN114135525B (en) * | 2020-09-02 | 2024-03-26 | 中国石油化工股份有限公司 | Adjustable ejector and gas-liquid mixing and conveying system for high-pressure gas well and low-pressure gas well |
| CN114382732A (en) * | 2020-10-21 | 2022-04-22 | 中国科学院理化技术研究所 | Low-temperature hydrogen ejector |
| CN114382732B (en) * | 2020-10-21 | 2023-10-20 | 中国科学院理化技术研究所 | Low-temperature hydrogen ejector |
| CN113187770A (en) * | 2021-06-08 | 2021-07-30 | 郭孝国 | Water jet air extractor |
| CN113187770B (en) * | 2021-06-08 | 2022-06-17 | 郭孝国 | Water jet air extractor |
| CN113389759A (en) * | 2021-06-21 | 2021-09-14 | 郭孝国 | Injection device |
| CN115234526A (en) * | 2022-07-25 | 2022-10-25 | 中国华能集团清洁能源技术研究院有限公司 | Hot press and method for outputting pressure thereof |
| CN115234526B (en) * | 2022-07-25 | 2024-04-02 | 中国华能集团清洁能源技术研究院有限公司 | Hot press and method for outputting pressure thereof |
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Legal Events
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160824 |
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| WD01 | Invention patent application deemed withdrawn after publication |