CN201672834U - Temperature-control variable-pressure type heat reservoir control system - Google Patents
Temperature-control variable-pressure type heat reservoir control system Download PDFInfo
- Publication number
- CN201672834U CN201672834U CN2010201391635U CN201020139163U CN201672834U CN 201672834 U CN201672834 U CN 201672834U CN 2010201391635 U CN2010201391635 U CN 2010201391635U CN 201020139163 U CN201020139163 U CN 201020139163U CN 201672834 U CN201672834 U CN 201672834U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- temperature
- steam
- control
- pressure
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The utility model discloses a temperature-control variable-pressure type heat reservoir control system, mainly comprising a heat reservoir. The heat reservoir is respectively communicated with an air inlet pipeline and an air outlet pipeline, and a short-circuit pipeline is arranged between the air inlet pipeline and the air outlet pipeline and is used for mutually communicating the air inlet pipeline with the air outlet pipeline. The air inlet pipeline positioned between the short-circuit pipeline and the heat reservoir is provided with an inlet check valve, and the short-circuit pipeline is provided with a temperature-control regulating valve and a short-circuit check valve. The heat reservoir is also provided with a steam pressure sensor for measuring saturated steam pressure and a water temperature sensor for measuring water temperature. The sensing signals of the steam pressure sensor and the water temperature sensor are input to a controller, and the output of the controller is connected with the implementing signal of the temperature-control regulating valve. The temperature-control variable-pressure type heat reservoir control system can play a role of 'peak loud shifting' in a heating power system with large production steam fluctuation, ensures the stable continuous outlet steam, and largely reduces the equipment trouble rate.
Description
Technical field
The utility model relates to afterheat steam and utilizes regenerative apparatus in the process, especially a kind of temperature-control variable-pressure heat accumulator control system.
Background technology
The attention to saving energy and reduce the cost along with the reach of science and people, the recycling of afterheat steam is more and more widely used industrial.As steel mill for the energy savings recovery waste heat, set up the converter waste heat boiler, because producing steel, converter is cyclically-varying, therefore the fume afterheat of discharging also is interrupted, cycle, make the generation saturated vapor that the converter waste heat boiler can only be interrupted, and flow and pressure oscillation scope are bigger, make that effective utilization of steam is relatively more difficult, and nearly all afterheat steam all exists above-mentioned phenomenon, for the interruption steam supply is become continuously, stable vapour source is to utilize (generating of steam supply turbine is used usually), can increase regenerative apparatus in system deals with problems, and existing storage heater still adopts last century eight, the storage heater technology in 90 years, because these heat accumulator control systems are provided with unreasonable, the adjustment process that " filling heat " and " heat release " are carried out in the fluctuation that makes storage heater can not follow afterheat steam automatically, result of use is relatively poor, and storage heater also loses due effect, has brought inconvenience to UTILIZATION OF VESIDUAL HEAT IN.
Summary of the invention
The purpose of this utility model is a kind of temperature-control variable-pressure heat accumulator control system that can carry out the adjusting of " filling heat " and " heat release " with the fluctuation of afterheat steam that provides for the deficiency that solves above-mentioned technology.
In order to achieve the above object, the temperature-control variable-pressure heat accumulator control system that the utility model is designed, it mainly comprises storage heater, be communicated with admission pipeline and steam outlet pipe road on the storage heater respectively, being provided with a short circuit pipeline between admission pipeline and steam outlet pipe road is interconnected them, on admission pipeline between short circuit pipeline and the storage heater, be provided with an inlet check valve, on described short circuit pipeline, be provided with temperature control adjusting valve and short circuit check-valves, also be provided with steam pressure sensor that is used to measure saturated vapour pressure and the cooling-water temperature sensor of measuring water temperature at described storage heater, described steam pressure sensor, the transducing signal of cooling-water temperature sensor inputs to controller, and the output of controller links to each other with the execution signal of temperature control adjusting valve.Described controller can be PLC, single-chip microcomputer, industrial computer etc., and described temperature sensor can be thermal resistance, thermocouple etc., and described control valve can be pneumatic control valve or electric liquid control valve etc.
As preferably, on the steam outlet pipe road that is positioned at short circuit pipeline rear side, be provided with pressure control and regulation valve and pressure sensor, pressure sensor links to each other with pressure control and regulation valve signal, adopts closed-loop control, guarantees the pressure stability of outlet steam.
The temperature-control variable-pressure heat accumulator control system that the utility model obtains, in producing the big therrmodynamic system of steam fluctuation, storage heater and control system rationally are set, can play the effect of " peak load shifting ", guarantee the steady and continuous of outlet steam, make the steamer function in steam supply operating mode stable operation stably, significantly reduce equipment failure rate.Simultaneously, stablize, make exerting oneself of residual neat recovering system keep maximum, under the prerequisite that does not influence former technological process, keep stable, efficient, the operation continuously of cogeneration owing to can guarantee quantity of steam and steam pressure.
Description of drawings
Fig. 1 is the structural representation of embodiment 1.
Among the figure: storage heater 1, admission pipeline 2, steam outlet pipe road 3, short circuit pipeline 4, inlet check valve 5, temperature control adjusting valve 6, short circuit check-valves 7, steam pressure sensor 8, cooling-water temperature sensor 9, controller 10, pressure control and regulation valve 11, pressure sensor 12.
The specific embodiment
The invention will be further described in conjunction with the accompanying drawings below by embodiment.
Embodiment 1
As shown in Figure 1, the described temperature-control variable-pressure heat accumulator control system of present embodiment, it mainly comprises storage heater 1, be communicated with admission pipeline 2 and steam outlet pipe road 3 on the storage heater 1 respectively, being provided with a short circuit pipeline 4 between admission pipeline 2 and steam outlet pipe road 3 is interconnected them, on admission pipeline 2 between short circuit pipeline 4 and the storage heater 1, be provided with an inlet check valve 5, on described short circuit pipeline 4, be provided with temperature control adjusting valve 6 and short circuit check-valves 7, also be provided with steam pressure sensor 8 that is used to measure saturated vapour pressure and the cooling-water temperature sensor 9 of measuring water temperature at described storage heater 1, described steam pressure sensor 8, the transducing signal of cooling-water temperature sensor 9 inputs to controller 10, and the output of controller 10 links to each other with the execution signal of temperature control adjusting valve 6.Be provided with pressure control and regulation valve 11 and pressure sensor 12 on the steam outlet pipe road 3 that is positioned at short circuit pipeline 4 rear sides, pressure sensor 12 links to each other with pressure control and regulation valve 11 signals.The collection of temperature, pressure signal in the native system, change are sent, and the technology such as control of the comparison of controller 10, output, control valve are electrical control field routine techniques, and this field the ordinary person can implement according to foregoing description, do not add detailed description at this.
The control method of above-mentioned temperature-control variable-pressure heat accumulator control system, water in its employing storage heater 1 carries out accumulation of heat to the steam of admission pipeline 2, and by the outside steam supply of steam outlet pipe road 3 outputs, it is characterized in that between admission pipeline 2 and steam outlet pipe road 3, setting up short circuit pipeline 4, on the admission pipeline 2 inlet check valve 5 is being set between short circuit pipeline 4 and the storage heater 1, temperature control adjusting valve 6 and short circuit check-valves 7 are set on short circuit pipeline 4, in storage heater 1, establish simultaneously steam pressure sensor 8 and cooling-water temperature sensor 9 and measure saturated vapour pressure and water temperature in the storage heater 1 respectively, and extrapolate vapor (steam) temperature by the saturated vapour pressure that records; Extrapolating vapor (steam) temperature by saturated vapour pressure is this area routine techniques, is not described further at this.
When vapor (steam) temperature is higher than water temperature, deviation with this vapor (steam) temperature and water temperature is controlled temperature control adjusting valve 6 work as control signal, by the flow in the temperature control adjusting valve 6 change short circuit pipelines 4, the steam that admission pipeline 2 is come in is divided into two-way, one the tunnel directly exports the outside steam supply of outlet conduit to through short circuit pipeline 4, another road enters storage heater 1 accumulation of heat, and described deviation is big more, and temperature control adjusting valve 6 apertures are more little;
When vapor (steam) temperature is lower than water temperature, high temperature saturation water evaporation becoming steam in the storage heater 1, make storage heater 1 interior steam pressure greater than the initial steam pressure in the admission pipeline 2, air feed is cut off in inlet check valve 5 and 7 automatic cut-offs of short circuit check-valves, prevent the direct backflow of steam simultaneously or be back to admission pipeline 2, make the steam in the storage heater 1 pass through steam outlet pipe road 3 with stable flow rate and the outside steam supply of pressure by short circuit pipeline 4.
Adopt the afterheat generating system of present technique to be applied to steel mill, during production run, in the time of during converter enters purging, steam production and vapour pressure increase gradually, the saturated vapor of time period converter of steaming enters storage heater 1 through inlet check valve 5, the pairing vapo(u)rous temperature of storage heater 1 internal pressure is higher than water side temperature in the storage heater 1, feed back to control signal of temperature control and regulation valve this moment, temperature control adjusting valve 6 turns down, come steam to be adjusted into two-way converter, a part enters outlet conduit by short circuit check-valves 7, and another part then enters storage heater 1, condensation heat by inlet check valve 5, water is heated, temperature and pressure in the storage heater 1 raises synchronously, promptly " fills thermal process ", stores with the form of heat energy;
After converter purges end, inlet vapor amount and pressure reduce gradually, inlet pipeline pressure reduces, the saturation temperature of storage heater 1 internal pressure correspondence also and then reduces, be lower than water side temperature in the storage heater 1 that absorbs heat, high temperature saturation water in the storage heater 1 flashes to steam rapidly, make storage heater 1 interior steam pressure greater than the initial steam pressure in the admission pipeline 2, air feed is cut off in inlet check valve 5 and 7 automatic cut-offs of short circuit check-valves, prevent the direct backflow of steam simultaneously or be back to admission pipeline 2 by short circuit pipeline 4, make the steam in the storage heater 1 pass through steam outlet pipe road 3 with stable flow rate and the outside steam supply of pressure, the heat-accumulator tank internal pressure, temperature descends synchronously, i.e. " exothermic process " or " process of steaming ".
Thereby make afterheat generating system have higher waste heat recovery efficient, under the prerequisite that does not influence former process for making flow process, can guarantee that waste heat boiler satisfies the operational mode and the working medium requirement of steam turbine, keep stable, efficient, the operation continuously of afterheat generating system.
Claims (2)
1. temperature-control variable-pressure heat accumulator control system, it mainly comprises storage heater, be communicated with admission pipeline and steam outlet pipe road on the storage heater respectively, it is characterized in that being provided with between admission pipeline and steam outlet pipe road a short circuit pipeline is interconnected them, on admission pipeline between short circuit pipeline and the storage heater, be provided with an inlet check valve, on described short circuit pipeline, be provided with temperature control adjusting valve and short circuit check-valves, also be provided with steam pressure sensor that is used to measure saturated vapour pressure and the cooling-water temperature sensor of measuring water temperature at described storage heater, described steam pressure sensor, the transducing signal of cooling-water temperature sensor inputs to controller, and the output of controller links to each other with the execution signal of temperature control adjusting valve.
2. temperature-control variable-pressure heat accumulator control system according to claim 1 is characterized in that being provided with pressure control and regulation valve and pressure sensor on the steam outlet pipe road that is positioned at short circuit pipeline rear side, pressure sensor links to each other with pressure control and regulation valve signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201391635U CN201672834U (en) | 2010-03-24 | 2010-03-24 | Temperature-control variable-pressure type heat reservoir control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201391635U CN201672834U (en) | 2010-03-24 | 2010-03-24 | Temperature-control variable-pressure type heat reservoir control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201672834U true CN201672834U (en) | 2010-12-15 |
Family
ID=43330246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201391635U Expired - Lifetime CN201672834U (en) | 2010-03-24 | 2010-03-24 | Temperature-control variable-pressure type heat reservoir control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201672834U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813431A (en) * | 2010-03-24 | 2010-08-25 | 浙江西子联合工程有限公司 | Temperature-control variable-pressure heat accumulator control system and control method thereof |
| CN103338854A (en) * | 2011-01-31 | 2013-10-02 | 日本石油天然气·金属矿物资源机构 | Temperature control system |
-
2010
- 2010-03-24 CN CN2010201391635U patent/CN201672834U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813431A (en) * | 2010-03-24 | 2010-08-25 | 浙江西子联合工程有限公司 | Temperature-control variable-pressure heat accumulator control system and control method thereof |
| CN101813431B (en) * | 2010-03-24 | 2011-11-02 | 浙江西子联合工程有限公司 | Temperature-control variable-pressure heat accumulator control system and control method thereof |
| CN103338854A (en) * | 2011-01-31 | 2013-10-02 | 日本石油天然气·金属矿物资源机构 | Temperature control system |
| CN103338854B (en) * | 2011-01-31 | 2016-01-20 | 日本石油天然气·金属矿物资源机构 | Temperature control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101813431B (en) | Temperature-control variable-pressure heat accumulator control system and control method thereof | |
| CN106089338A (en) | A kind of back pressure machine association system regulating heat supply and generating and method | |
| CN103175189A (en) | Solar boiler soft water preheating system | |
| CN201672834U (en) | Temperature-control variable-pressure type heat reservoir control system | |
| CN205388229U (en) | Corrugated paper production facility steam system | |
| CN208295878U (en) | A kind of combined type industry hot gas co-generation system | |
| CN202083020U (en) | Comprehensive heating system supplied with heat from solar ground heat source heat pump and gas direct-heating heater | |
| CN202709254U (en) | Energy-saving district heat supply and storage system | |
| CN209147061U (en) | A kind of accumulation of heat regulation distributed combined heat and power generation system | |
| CN104654580A (en) | Heat accumulating type vacuum phase change boiler | |
| CN210267454U (en) | Natural circulation high-temperature heat storage and steam supply heating device | |
| CN202449878U (en) | Methanol and waste water heat recovery system in trade mark material production | |
| CN205258457U (en) | Biogas engineering fast -assembling modularization waste heat utilization equipment | |
| CN204535096U (en) | A kind of heat accumulating type phase change vacuum boiler | |
| CN204201868U (en) | A kind of boiler exhaust gas residual neat recovering system | |
| CN202056845U (en) | Waste heat boiler with heat transfer oil auxiliary oiling apparatus | |
| CN206739248U (en) | A kind of Thermal generation unit fuse salt heat storage type peak regulation system | |
| CN209588023U (en) | A kind of steam boiler priming apparatus | |
| CN207501331U (en) | The air-conditioning system that a kind of steam heat recovery utilizes | |
| CN202560491U (en) | Steam power cycle power generation system | |
| CN202083019U (en) | Electric instant heating type water heater comprehensive heating system adopting solar energy terrestrial heat source heat pump | |
| CN109404883A (en) | A kind of accumulation of heat regulation distributed combined heat and power generation system | |
| CN205767349U (en) | A kind of die temperature control device | |
| CN219389683U (en) | Regulation and control device of cogeneration unit | |
| CN207763290U (en) | Cooling and heating load automatically adjusts unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101215 Effective date of abandoning: 20111102 |