CN208281793U - The supercritical carbon dioxide low pressure storage tank device of anti-phase transformation low pressure loss - Google Patents
The supercritical carbon dioxide low pressure storage tank device of anti-phase transformation low pressure loss Download PDFInfo
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- CN208281793U CN208281793U CN201820888793.9U CN201820888793U CN208281793U CN 208281793 U CN208281793 U CN 208281793U CN 201820888793 U CN201820888793 U CN 201820888793U CN 208281793 U CN208281793 U CN 208281793U
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Abstract
The utility model discloses the supercritical carbon dioxide low pressure storage tank devices of anti-phase transformation low pressure loss, the device includes tank body, inlet pipeline, outlet conduit, transition conduit, contraction section, heater, safety valve, detect section, detect section shut-off valve, exhaust-valve, sample section shut-off valve, sample section, unidirectional section, non-return valve, pressure gauge and thermometer, the device realizes gas storage by control system, gas sample, unidirectional cooling gas source is provided, superpressure discharge, automatic fast evacuation, temperature and pressure detection, anti- phase transformation automatic heating function, the device can significantly reduce the vortex intensity of gas in tank body, the aerodynamic loss for stablizing the fluid for flowing through tank body is minimized, simultaneously when supercritical carbon dioxide system generation turbine stops in emergency accident, the device can guarantee not to be occurred in the overall process for mentioning carbon dioxide gas for cooling Phase transformation.
Description
Technical field
The utility model relates to the low pressure storage tank technical field of the supercritical carbon dioxide circulatory system, specific one kind can be reduced
Eddy stress loss, the low pressure storage tank device for preventing the liquefied high temperature and pressure supercritical carbon dioxide circulatory system.
Background technique
Minimum pressure in supercritical carbon dioxide system should be greater than critical pressure 7.39MPa, so the work of low pressure storage tank
Making pressure should be in 7.39MPa or more.In the supercritical carbon dioxide system of high design parameter, for systems stabilisation key position
Pressure, the temperature parameter for setting gas make the slewing of supercritical carbon dioxide system be in the effect of optimum Working, must
The supercritical carbon dioxide of low pressure tank body storage certain mass need be used.Other than pressure stabilization function, storage tank is also answered
It is with the following functions: 1, for system occur thoroughly stop in emergency accident when for necessary cooling carbon dioxide gas；2, system gas
Body sampling；3, gaseous state monitors.Since above-mentioned supercritical carbon dioxide tank body needs to meet supercritical carbon dioxide system spy
Some functions do not have forefathers to carry out targeted design to tank body according to the correlation function in supercritical carbon dioxide system, are allowed to
Reach the functional requirement for meeting the low pressure storage tank in supercritical carbon dioxide system.For example, there is following two in tank body
It is not resolved: 1, foring three-dimensional large eddies in tank body when supercritical carbon dioxide air-flow disengaging tank body, make tank body
Inside there is the extraneous turbulence pressure loss, reduces system circulation efficiency to a certain extent；2, in supercritical carbon dioxide turbine
Emergency episode operating condition, tank body will appear phase transformation when providing cold air, prevent the gas in storage tank from supplying as required.As can reducing low
It presses the large scale three-dimensional eddy current bring of tank body to add crushing, the cycle efficieny of system can be improved；If accident work can be prevented
Gas, which is undergone phase transition, in condition tank body can make cold air steady air current flow to turbine, take away the waste heat on turbine, guarantee turbine
Safety.The low pressure that is effectively reduced that there is no the prior art to can solve the supercritical carbon dioxide circulatory system of high design parameter is stored up
The problem undergone phase transition in the extraneous turbulence pressure loss and accident conditions tank body in tank.
Summary of the invention
In order to solve the above-mentioned problems of the prior art, the purpose of this utility model is to provide anti-phase transformation low pressure loss
Supercritical carbon dioxide low pressure storage tank device, by supercritical carbon dioxide low-pressure tank body be arranged transition conduit, contraction section,
Heater, safety valve, detection section, detection section shut-off valve, exhaust-valve, sampling section shut-off valve, sampling section, unidirectional section, non-return valve, pressure
Power table and thermometer, realizing reduces eddy current effect and additional pressure drops in tank body, can be promoted overcritical under high design parameter
Carbon dioxide cycle system cycle efficieny, while gas storage, gas sample, the unidirectional cooling air of offer are realized by control system
Source, superpressure discharge, the detection of automatic fast evacuation, temperature and pressure, anti-phase transformation automatic heating function.
The utility model achieves the above object through the following technical schemes:
A kind of supercritical carbon dioxide low pressure storage tank device of anti-phase transformation low pressure loss, including tank body 1, inlet pipeline 2, outlet
Pipeline 3, transition conduit 4, contraction section 5, heater 6, safety valve 7, detection section 8, detection section shut-off valve 9, exhaust-valve 10, sampling section
Shut-off valve 11 samples section 12, unidirectional section 13, non-return valve 14, pressure gauge 15 and thermometer 16, wherein about 1 two sides outer wall of tank body
Inlet pipeline 2 and outlet conduit 3 that mainstream fluid passes in and out are set in connection, and connection is located between inlet pipeline 2 and outlet conduit 3
Transition conduit 4 in tank body 1, transition conduit 4 are connected with outlet conduit 3 by the contraction section 5 being located in tank body 1,1 two sides of tank body
Inner wall is connected with the inlet end of transition conduit 4,5 outlet side of contraction section respectively, and heater 6, the top of tank body 1 are arranged in tank body 1
Be connected with detection section 8, detect and detection section shut-off valve 9 and exhaust-valve 10 is respectively set in section 8, detect section shut-off valve 9 and tank body 1 it
Between detection section 8 on safety valve 7, pressure gauge 15 and thermometer 16 are set, detect the detection between section shut-off valve 9 and exhaust-valve 10
Section 8 is connected with sampling section 12, samples and is provided with sampling section shut-off valve 11 in section 12, and tank body 1 is connected with unidirectional section 13, unidirectional section 13
It is provided with non-return valve 14, further includes realizing that gas storage, gas sample, the unidirectional cooling gas source of offer, superpressure discharge, are automatic quick
It empties, temperature and pressure detects, the control system of anti-phase transformation automatic heating function.
The transition conduit 4 is to smoothly transit pipeline, the extended line of the center line of transition conduit 4 or centerline tangent
Extended line is overlapped with the center line of the inlet pipeline 2 in 1 outside of tank body and outlet conduit 3, and the outlet side of transition conduit 4, which is located at, shrinks
The extended line of the inside of the inlet end of section 5, the center line that transition conduit 4 exports is overlapped with the center line of contraction section 5.
The access of the heater 6 and open circuit are controlled by tank body control system, and control system is by the working time of heater 6
It is set as constant time period, control system judges whether heater 6 is opened according to the temperature and pressure signal of detection automatically,
Heater 6 is issued every time to order, the work constant time period of heater 6 is then issued by control system and stops call for heat,
Heater 6 stops working.
The control method of the supercritical carbon dioxide low pressure storage tank device of the anti-phase transformation low pressure loss, the control of tank body 1
System in real time checks the pressure gauge 15 of tank body 1 and thermometer 16, when pressure gauge 15 shows that pressure is greater than in tank body
When 7.4MPa, heater 6 does not start；When pressure gauge 15 shows that pressure is equal to or less than 7.4MPa in tank body, thermometer 16 is aobvious
When showing that tank body temperature is greater than 31 DEG C, heater 6 does not start；When pressure gauge 15 shows that pressure is equal to or less than 7.4MPa in tank body
When, and when thermometer 16 shows that tank body temperature is equal to or less than 31 DEG C, heater 6 starts once, default permanent to tank body heating
It fixes time section, is then issued by control system and stop call for heat, heater 6 stops working；It is right after the heating of heater 6 stops
The pressure gauge 15 and thermometer 16 of tank body are detected again；After detection, detected according to the pressure gauge 15 of tank body and thermometer 16
As a result, repeating aforesaid operations process.
It compares with existing technology, the utility model has the beneficial effects that:
The utility model proposes the supercritical carbon dioxide low pressure storage tanks of the anti-phase transformation low pressure loss for high design parameter
Device and control method, by reducing stationary fluid in high-velocity fluid and tank body by smooth transition segment pipe is very big
Contact, reduces the intracorporal eddy current effect of tank, reduces pressure loss when mainstream fluid flows through tank body, in this sense
Improve the cycle efficieny of the overcritical critical carbon dioxide circulatory system, at the same by by heater, pressure gauge, thermometer and
Control system is using the utility model proposes the controls that temperature and pressure in tank body may be implemented in control logic, it is ensured that in tank body
Phase transformation of the gaseous state to liquid is not generated, tank body when accident conditions is made to provide cold air to greatest extent for turbine, it is ensured that in system thoroughly
Flat safety.Furthermore the utility model makes tank body have superpressure releasing pressure automatically defencive function by installing safety valve at top,
Top of the tank is provided with detection section, is isolated to form separate chamber with main tank body by simultaneously 2 valves, convenient for providing gas for sampling section
Body sample analyzes gas componant for scientific research personnel；When tank body needs Quick air-discharge, sampling section valve is closed, and opens simultaneously detection
Two valves of section, the intracorporal gas of tank can directly be discharged from top.
Detailed description of the invention
Fig. 1 is the schematic diagram of the supercritical carbon dioxide low pressure storage tank device of the anti-phase transformation low pressure loss of the utility model.
1 is tank body；2 be inlet pipeline；3 be outlet conduit；4 be transition conduit；5 be contraction section；6 be heater；7 be peace
Full valve；8 be detection section；9 be detection section shut-off valve；10 be exhaust-valve；11 be sampling section shut-off valve；12 be sampling section；13 be single
To section；14 be non-return valve；15 be pressure gauge；16 be thermometer.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Figure 1, a kind of supercritical carbon dioxide low pressure storage tank device of anti-phase transformation low pressure loss of the utility model, including
Tank body 1, inlet pipeline 2, outlet conduit 3, transition conduit 4, contraction section 5, heater 6, safety valve 7, detection section 8, detection section are cut
Only valve 9, exhaust-valve 10, sampling section shut-off valve 11, sampling section 12, unidirectional section 13, non-return valve 14, pressure gauge 15 and thermometer 16,
Wherein setting mainstream fluid passes in and out in the connection of about 1 two sides outer wall of tank body inlet pipeline 2 and outlet conduit 3,2 He of inlet pipeline
Connection is located at the transition conduit 4 in tank body 1, transition conduit 4 and outlet conduit 3 by being located in tank body 1 between outlet conduit 3
Contraction section 5 is connected, and 1 two sides inner wall of tank body is connected with the inlet end of transition conduit 4,5 outlet side of contraction section respectively, sets in tank body 1
Heater 6 is set, the top of tank body 1 is connected with detection section 8, detects setting detection section shut-off valve 9, exhaust-valve 10 in section 8, is detecting
Safety valve 7, pressure gauge 15 and thermometer 16 are set in the detection section 8 between section shut-off valve 9 and tank body 1, in detection section shut-off valve 9
Detection section 8 between exhaust-valve 10 is connected with sampling section 12, samples and is provided with sampling section shut-off valve 11 in section 12, tank body 1 and
Unidirectional section 13 is connected, and unidirectional section 13 is provided with non-return valve 14, the device by control system realization gas storage, gas sample,
Unidirectional cooling gas source, superpressure discharge, the detection of automatic fast evacuation, temperature and pressure, anti-phase transformation automatic heating function are provided.
As preferred embodiments of the present invention, the transition conduit 4 is the pipeline that smoothly transits, transition conduit 4
The inlet pipeline 2 in 1 outside of the extended line of center line or the extended line of centerline tangent and tank body and the center line of outlet conduit 3
It is overlapped, the outlet side of transition conduit 4 is located at the inside of the inlet end of contraction section 5, the extended line for the center line that transition conduit 4 exports
It is overlapped with the center line of contraction section 5.
As preferred embodiments of the present invention, the access of the heater 6 and open circuit are by tank body control system control
System, control system control each working time of heater 6 according to setting time.
The working principle of the anti-phase transformation low pressure loss supercritical carbon dioxide low pressure storage tank device of the utility model is as follows:
At work, mainstream fluid is successively from inlet pipeline 2, transition conduit 4, contraction section 5, outlet conduit 3, with tank body 1
In static supercritical carbon dioxide gas contact area very little, the intracorporal drag losses of tank are small.Inspection at 1 top of top canister
It surveys in section 8 and safety valve 7 is installed, when pressure is no more than the maximum pressure that tank body 1 can be born in tank body 1, safety valve does not work,
When pressure is more than the maximum pressure that tank body 1 can be born in tank body 1, tank body 1 starts decompression protection function automatically；It is pushed up in tank body 1
Portion is provided with detection section 8, by and 2 valves with main tank body be isolated to form separate chamber, scientific research personnel can according to need with
When from sampling section extract gas sample gas componant is analyzed；When tank body 1 needs Quick air-discharge, the valve of section 12 is sampled
11 close, and open simultaneously the detection section shut-off valve 9 and exhaust-valve 10 of detection section 8, and the intracorporal gas of tank can be arranged directly from top
Out.In accident conditions, the intracorporal gas of tank eventually enters into turbine by unidirectional section 13 and non-return valve 14.The control system of tank body 1
System in real time checks the pressure gauge of tank body 15 and thermometer 16, when pressure gauge 15 shows that pressure is greater than 7.4MPa in tank body
When, heater 6 does not start；When pressure gauge 15 shows that pressure is equal to or less than 7.4MPa in tank body, thermometer 16 shows tank body
When interior temperature is greater than 31 DEG C, heater 6 does not start；When pressure gauge 15 shows that pressure is equal to or less than 7.4MPa in tank body, and
When thermometer 16 shows that tank body temperature is equal to or less than 31 DEG C, heater 6 starts once, heats the pre-set constant time to tank body
Section stops heating with post-heater 6 under the ceasing and desisting order of control system；After heater 6 stops heating, to the pressure gauge of tank body
15 and thermometer 16 detected again；After detection, according to 16 testing result of the pressure gauge 15 of tank body and thermometer, repeat
Aforesaid operations process.
The limitation that the technical solution of the utility model is not limited to the above specific embodiments, all skills according to the present utility model
The technology deformation that art scheme is made, each falls within the protection scope of the utility model.
Claims (2)
1. a kind of supercritical carbon dioxide low pressure storage tank device of anti-phase transformation low pressure loss, it is characterised in that: including tank body (1), into
Mouth pipeline (2), outlet conduit (3), transition conduit (4), contraction section (5), heater (6), safety valve (7), detection section (8), inspection
Survey section shut-off valve (9), exhaust-valve (10), sampling section shut-off valve (11), sampling section (12), unidirectional section (13), non-return valve (14), pressure
Power table (15) and thermometer (16), wherein two sides outer wall connects the inlet pipeline that setting mainstream fluid passes in and out to tank body (1) up and down
(2) and outlet conduit (3), connection is located at the transition conduit (4) in tank body (1) between inlet pipeline (2) and outlet conduit (3),
Transition conduit (4) is connected with outlet conduit (3) by the contraction section (5) being located in tank body (1), tank body (1) two sides inner wall difference
It is connected with the inlet end of transition conduit (4), contraction section (5) outlet side, heater (6) is set in tank body (1), the top of tank body (1)
Portion is connected with detection section (8), and setting detection section shut-off valve (9) and exhaust-valve (10) in detection section (8) detect section shut-off valve (9)
Safety valve (7), pressure gauge (15) and thermometer (16) are set in the detection section (8) between tank body (1), detect section shut-off valve
(9) the detection section (8) between exhaust-valve (10) is connected with sampling section (12), and sampling section shut-off valve is provided in sampling section (12)
(11), tank body (1) is connected with unidirectional section (13), and unidirectional section (13) is provided with non-return valve (14), further includes realizing gas storage, gas
Function is heated in body sampling, the unidirectional cooling gas source of offer, superpressure discharge, the detection of automatic fast evacuation, temperature and pressure, anti-phase transformation automatically
The control system of energy.
2. the supercritical carbon dioxide low pressure storage tank device of anti-phase transformation low pressure loss according to claim 1, it is characterised in that:
The transition conduit (4) is smoothly transit pipeline, the extended line of the center line of transition conduit (4) or the extension of centerline tangent
Line is overlapped with the center line of inlet pipeline (2) and outlet conduit (3) on the outside of tank body (1), and the outlet side of transition conduit (4) is located at
The inside of the inlet end of contraction section (5), the extended line of the center line of transition conduit (4) outlet and the center line weight of contraction section (5)
It closes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820888793.9U CN208281793U (en) | 2018-06-08 | 2018-06-08 | The supercritical carbon dioxide low pressure storage tank device of anti-phase transformation low pressure loss |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820888793.9U CN208281793U (en) | 2018-06-08 | 2018-06-08 | The supercritical carbon dioxide low pressure storage tank device of anti-phase transformation low pressure loss |
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| CN208281793U true CN208281793U (en) | 2018-12-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730752A (en) * | 2018-06-08 | 2018-11-02 | 华能国际电力股份有限公司 | The supercritical carbon dioxide low pressure storage tank device and control method of anti-phase transformation low pressure loss |
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2018
- 2018-06-08 CN CN201820888793.9U patent/CN208281793U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730752A (en) * | 2018-06-08 | 2018-11-02 | 华能国际电力股份有限公司 | The supercritical carbon dioxide low pressure storage tank device and control method of anti-phase transformation low pressure loss |
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