CN203810055U - Steam control system - Google Patents
Steam control system Download PDFInfo
- Publication number
- CN203810055U CN203810055U CN201420012228.8U CN201420012228U CN203810055U CN 203810055 U CN203810055 U CN 203810055U CN 201420012228 U CN201420012228 U CN 201420012228U CN 203810055 U CN203810055 U CN 203810055U
- Authority
- CN
- China
- Prior art keywords
- steam
- subelement
- value
- temperature
- 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
- 238000001816 cooling Methods 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 abstract description 2
- 102000002067 Protein Subunits Human genes 0.000 abstract 3
- 108010001267 Protein Subunits Proteins 0.000 abstract 3
- 230000006835 compression Effects 0.000 abstract 2
- 238000007906 compression Methods 0.000 abstract 2
- 230000008602 contraction Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The embodiment of the utility model discloses a steam control system. The steam control system comprises a control unit; the steam control system is characterized in that the control unit comprises a flow sub unit, a temperature control sub unit and a pressure control sub unit, wherein the flow sub unit is used for obtaining a flow value of steam and controlling a cooling unit according to the flow value; the temperature control sub unit is used for obtaining a temperature value of the steam and controlling an adjusting unit according to the temperature value; the pressure control sub unit is used for obtaining a pressure value of the steam and controlling the adjusting unit according to the pressure value; the adjusting unit is used for executing commands of the control unit and comprises a first adjusting sub unit and a second adjusting sub unit, the first adjusting sub unit is used for stopping transporting the steam when the temperature of the steam exceeds a preset temperature value, and the second adjusting sub unit is used for maintaining the balance of the pressure value of inner steam when power failure is carried out and air compression is stopped; the cooling unit is used for stopping transporting cooling water when the steam flow exceeds a preset flow value. The steam control system disclosed by the embodiment of the utility model is used for maintaining the balance of the pressure value of the inner steam when power failure is carried out and the air compression is stopped, and the problem of thermal expansion and contraction generated when the steam control system is powered on and ventilated again is solved.
Description
Technical field
The utility model relates to chemical field, relates in particular to a kind of steam control system.
Background technique
In industrial production, to use the burnings such as boiler to provide in the process of energy and usually can produce the steam of High Temperature High Pressure, this vapor transmission efficiency is higher, but because heat exchange efficiency is lower and be subject to equipment pressure, temperature limiting etc., generally can not directly use.Need to be before equipment be used steam, first to steam lower the temperature, step-down processes.Therefore, because the restriction of pressure and temperature can not directly be used, so that many occasions waste steam, but because the steam of High Temperature High Pressure is in transportation process, Security is of crucial importance, therefore, while avoiding the Steam Recovery of High Temperature High Pressure to utilize transmitting in process, there is security incident in industrial production, steam is carried out to pressure and temperature reducing and become the technology of comparatively paying close attention to now.
Current steam temperature reducing and pressure reducing technology, by serviceability temperature instrument detected temperatures, when temperature surpasses setting temperature, the aperture of controlling desuperheat valve increases, and accelerates cooling-down effect, when temperature turns down steam regulation valve during lower than setting value, simultaneously when pressure instrument detects pressure over setting pressure, control reduction valve aperture and reduce, to reduce pressure, when pressure increases steam regulation valve during lower than setting pressure.
Yet, this steam temperature reducing and pressure reducing technology, after occur having a power failure, stopping the supple of gas or steam, then when Power resumption, ventilation, owing to detecting, true temperature, pressure and setting value deviation are larger, the generation phenomenon of expanding with heat and contract with cold,
Cause steam regulation valve significantly to open suddenly, cause steam line to impact larger, simultaneously, when steam low discharge, temperature lowering effect reduces, and desuperheat water pump continues to add water in desuperheater, make the interior cooling water of pipeline too much, produce water hammer effect, increased potential safety hazard.
Model utility content
The utility model embodiment discloses a kind of steam control system, by when having a power failure and stopping pressurized air, keep internal vapor pressure value balance, solved the problem of expanding with heat and contract with cold producing when steam control system is again switched on and ventilated, simultaneously, when steam flow stops carrying temperature lowering water by cooling unit during lower than preset flow value, reduce further the probability that water hammer effect produces.
A kind of steam control system that the utility model embodiment provides, comprising: control unit,
Described control unit comprises: flow subelement, and temperature control subelement and pressure are controlled subelement;
Wherein, described flow subelement, for obtaining vapor stream value, and controls cooling unit according to described flow value;
Described temperature control subelement, for obtaining vapor (steam) temperature value, and according to described temperature value regulating and controlling unit;
Described pressure is controlled subelement, for obtaining vapor pressure value, and controls described regulon according to described force value;
Described regulon, for carrying out the instruction of described control unit, comprising: first regulates subelement and second to regulate subelement;
Wherein, described first regulates subelement, for when vapor (steam) temperature surpasses preset temperature value, stops vapor transmission;
Described second regulates subelement, when having a power failure and stopping pressurized air, keeps internal vapor pressure value balance;
Described cooling unit, for when steam flow is during lower than preset flow value, stops carrying temperature lowering water.
Alternatively, described regulon also comprises:
When vapor pressure value surpasses set pressure value, according to the first preset value released vapour.
Alternatively,
It is pressure controller table that described pressure is controlled subelement.
Described temperature control subelement is temperature control instrument.
Alternatively, described flow subelement is connected with flowmeter, for obtaining described flow value by described flowmeter.
Alternatively, described the first adjusting subelement is steam regulation valve;
Described the second adjusting subelement is by-pass valve.
Alternatively, described cooling unit specifically comprises:
Cooling pump and cooling modulating valve;
Described cooling pump, for being extracted out the described temperature lowering water in pond send described cooling modulating valve to by pressure;
Described cooling modulating valve, for when steam flow is during lower than preset flow value, stops carrying described temperature lowering water.
Alternatively, described steam control system also comprises:
Cooler, is connected with described steam regulation valve by steam dispatch tube.
Alternatively, described regulon is connected with described flowmeter by described steam dispatch tube with described cooler.
Alternatively, described pressure is controlled subelement and is obtained force value by pressure transducer;
Described temperature control subelement obtains temperature value by temperature transducer.
As can be seen from the above technical solutions, the utility model is embodiment have the following advantages: a kind of steam control system that the utility model provides comprises: control unit, wherein, control unit comprises: flow subelement, temperature control subelement and pressure are controlled subelement, flow subelement, be used for obtaining vapor stream value, and control cooling unit according to flow value, temperature control subelement, be used for obtaining vapor (steam) temperature value, and according to temperature value regulating and controlling unit, pressure is controlled subelement, be used for obtaining vapor pressure value, and according to force value regulating and controlling unit, regulon, for carrying out the instruction of control unit, comprise: first regulates subelement and second to regulate subelement, wherein, first regulates subelement, for when vapor (steam) temperature surpasses preset temperature value, stop vapor transmission, second regulates subelement, while being used for having a power failure and stopping pressurized air, keep internal vapor pressure value balance, cooling unit, for when steam flow is during lower than preset flow value, stop carrying temperature lowering water.The utility model by the second adjusting subelement when having a power failure and stopping pressurized air, keep internal vapor pressure value balance, just can solve the problem of expanding with heat and contract with cold producing when steam control system is again switched on and ventilated, simultaneously, when steam flow stops carrying temperature lowering water by cooling unit during lower than preset flow value, reduce further the probability that water hammer effect produces.
Accompanying drawing explanation
The structural representation that Fig. 1 is the steam control system that provides in the utility model embodiment.
Embodiment
The utility model embodiment discloses a kind of steam control system, by when having a power failure and stopping pressurized air, keep internal vapor pressure value balance, solved the problem of expanding with heat and contract with cold producing when steam control system is again switched on and ventilated, simultaneously, when steam flow stops carrying temperature lowering water by cooling unit during lower than preset flow value, reduce further the probability that water hammer effect produces.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is known and detailed description, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making all other embodiments that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of steam control system embodiment comprises:
Control unit 101, comprising: flow subelement 1011, and temperature control subelement 1012 and pressure are controlled subelement 1013;
Wherein, flow subelement 1011, for obtaining vapor stream value, and controls cooling unit 103 according to flow value;
In the present embodiment, this flow subelement 1011 can be specifically for obtaining flow value by flowmeter 104.
Temperature control subelement 1012, for obtaining vapor (steam) temperature value, and according to temperature value regulating and controlling unit 102;
In the present embodiment, this temperature control subelement 1012 can specifically comprise:
Temperature control instrument, for obtaining vapor (steam) temperature value by temperature transducer 107.
Pressure is controlled subelement 1013, for obtaining vapor pressure value, and according to force value regulating and controlling unit 102;
In the present embodiment, this pressure is controlled subelement 1013 and can specifically be comprised:
Pressure controller table, for obtaining vapor pressure value by pressure transducer 106.
Regulon 102, for carrying out the instruction of control unit 101, comprising: first regulates subelement 1021 and second to regulate subelement 1022;
It should be noted that, this regulon 102 also, for when vapor pressure value surpasses set pressure value, according to the first preset value released vapour, for example, when the first preset value is 1000pa, is not specifically limited herein.
Wherein, first regulates subelement 1021, for when vapor (steam) temperature surpasses preset temperature value, stops vapor transmission, and this first adjusting subelement 1021 is steam regulation valve;
Second regulates subelement 1022, when having a power failure and stopping pressurized air, keeps internal vapor pressure value balance, and second to regulate subelement 1022 be by-pass valve for this.
Cooling unit 103, for when steam flow is during lower than preset flow value, stops carrying temperature lowering water.
Be understandable that, this cooling unit 103 can specifically comprise: cooling pump 1031 and cooling modulating valve 1032, aforesaid cooling pump 1031 is for being extracted out the temperature lowering water in pond 108 send cooling modulating valve 1032 to by pressure, this cooling modulating valve 1032 is for steam flow during lower than preset flow value, stop carrying temperature lowering water, for example vapor stream value, lower than 500ml, does not specifically limit herein.
In the present embodiment, steam control system can further include:
Cooler 105, the dispatch tube by steam is connected with steam regulation valve, for the temperature lowering water that receives 1032 transmission of cooling modulating valve to steam cooling;
It should be noted that, in the present embodiment, flowmeter 104, regulon 102 is connected by steam dispatch tube with cooler 105, and temperature transducer 107 and pressure transducer 106 are arranged on the steam dispatch tube being connected to after cooler 105.
In the present embodiment, by the second adjusting subelement 1021 when having a power failure and stopping pressurized air, keep internal vapor pressure value balance, just can solve the problem of expanding with heat and contract with cold producing when steam control system is again switched on and ventilated, simultaneously, when steam flow stops carrying temperature lowering water by cooling unit 103 during lower than preset flow value, reduce further the probability that water hammer effect produces.
That the detailed functions of all parts and Placement are described in detail above, for ease of understanding, below with a concrete application scenarios, the mutual process of using of a kind of steam control system all parts in the utility model embodiment is described in detail, and in the utility model embodiment, a kind of steam control system application examples comprises:
In should use-case, water in wet saturated steam all vaporization becomes dry saturated vapor, now vapor (steam) temperature is still boiling temperature, if dry saturated vapor is continued to heating, vapor (steam) temperature is raise and surpass boiling temperature, the steam now obtaining is superheated vapor, the saturation pressure of steam is to strengthen along with the rising of temperature, need to carry out safe handling to superheated vapor, when steam enters steam dispatch tube, the flowmeter 104 of flowing through, flowmeter 104 feeds back to flow value on the flow subelement 1011 of control unit 101, when flow value is during lower than preset flow value, the cooling pump 1031 of cooling unit 103 stops the temperature lowering water in suction pond 107, simultaneously, the cooling modulating valve 1032 of cooling unit 103 stops carrying temperature lowering water, when vapor stream value is during higher than preset flow value, steam continues along steam dispatch tube flow through steam regulation valve and cooler 105, cooler 105 is lowered the temperature the cooling pump 1031 of cooling unit 103 after processing by the temperature lowering water in pond 108 by pressure, again steam is transmitted through pressure transducer 106 and temperature transducer 107, when pressure transducer 106 detects vapor pressure value over set pressure value, first regulates subelement 1021 according to the first preset value released vapour, for example the first preset value is 1000pa, be not specifically limited herein, when temperature transducer 107 detects vapor (steam) temperature over preset temperature value, first regulates 1021, subelement to stop vapor transmission, this the first adjusting subelement 1021 is steam regulation valve, simultaneously, when having a power failure and stopping pressurized air, control unit 101 is opened second and is regulated subelement 1022 to keep internal vapor pressure value balance, this the second adjusting subelement 1022 is by-pass valve.
In should use-case, by by-pass valve when having a power failure and stopping pressurized air, keep internal vapor pressure value balance, just can solve the problem of expanding with heat and contract with cold producing when steam control system is again switched on and ventilated, simultaneously, when steam flow stops carrying temperature lowering water by cooling unit 103 during lower than preset flow value, reduce further the probability that water hammer effect produces.
Above a kind of steam control system provided by the utility model is described in detail, for one of ordinary skill in the art, thought according to the utility model embodiment, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (8)
1. a steam control system, comprising: control unit, it is characterized in that, and described control unit comprises: flow subelement, temperature control subelement and pressure are controlled subelement; Wherein, described flow subelement, for obtaining vapor stream value, and controls cooling unit according to described flow value; Described temperature control subelement, for obtaining vapor (steam) temperature value, and according to described temperature value regulating and controlling unit; Described pressure is controlled subelement, for obtaining vapor pressure value, and controls described regulon according to described force value; Described regulon, for carrying out the instruction of described control unit, comprising: first regulates subelement and second to regulate subelement; Wherein, described first regulates subelement, for when vapor (steam) temperature surpasses preset temperature value, stops vapor transmission; Described second regulates subelement, when having a power failure and stopping pressurized air, keeps internal vapor pressure value balance; Described cooling unit, for when steam flow is during lower than preset flow value, stops carrying temperature lowering water.
2. steam control system according to claim 1, is characterized in that, it is pressure controller table that described pressure is controlled subelement; Described temperature control subelement is temperature control instrument.
3. steam control system according to claim 1, is characterized in that, described flow subelement is connected with flowmeter, for obtaining described flow value by described flowmeter.
4. steam control system according to claim 1, is characterized in that, described the first adjusting subelement is steam regulation valve; Described the second adjusting subelement is by-pass valve.
5. steam control system according to claim 1, is characterized in that, described cooling unit specifically comprises: cooling pump and cooling modulating valve; Described cooling pump, for being extracted out the described temperature lowering water in pond send described cooling modulating valve to by pressure; Described cooling modulating valve, for when steam flow is during lower than preset flow value, stops carrying described temperature lowering water.
6. steam control system according to claim 1, is characterized in that, also comprises: cooler, is connected with described steam regulation valve by steam dispatch tube.
7. according to the steam control system described in claim 1, it is characterized in that, described regulon is connected with described flowmeter by described steam dispatch tube with described cooler.
8. according to the steam control system described in claim 2, it is characterized in that, described pressure is controlled subelement and is obtained force value by pressure transducer; Described temperature control subelement obtains temperature value by temperature transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420012228.8U CN203810055U (en) | 2014-01-08 | 2014-01-08 | Steam control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420012228.8U CN203810055U (en) | 2014-01-08 | 2014-01-08 | Steam control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203810055U true CN203810055U (en) | 2014-09-03 |
Family
ID=51448803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420012228.8U Expired - Lifetime CN203810055U (en) | 2014-01-08 | 2014-01-08 | Steam control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203810055U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112110065A (en) * | 2019-06-19 | 2020-12-22 | 中国石油化工股份有限公司 | Intelligent regulation and control system for oil product storage tank heater |
-
2014
- 2014-01-08 CN CN201420012228.8U patent/CN203810055U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112110065A (en) * | 2019-06-19 | 2020-12-22 | 中国石油化工股份有限公司 | Intelligent regulation and control system for oil product storage tank heater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102563351A (en) | Gas depressurizing heating device and gas depressurizing heating method | |
| CN106195995A (en) | A kind of heating power jet pump height adds steam-supplying system | |
| CN105443243A (en) | Gas-steam combined circulation system | |
| CN203810055U (en) | Steam control system | |
| CN203718735U (en) | Three-stage flash cascade waste heat comprehensive utilization system for steam system of industrial and mining enterprises | |
| CN204718438U (en) | The enclosed cooling unit of the wet curtain of band and low pressure automatic water jetting heat sink | |
| CN203964690U (en) | A kind of flue gas heat recovery device of bell type heating furnace | |
| CN205714311U (en) | A kind of Novel fire power plant small turbine axle envelope steam bleeding system | |
| CN202516327U (en) | Ammonia evaporation device | |
| CN202902418U (en) | Heat pump driving steam temperature control device | |
| CN205206962U (en) | Gas and steam combined cycle system | |
| CN205329105U (en) | Steam superheating device and RH vacuum treatment installation do steam system with overheated saturation | |
| CN204201868U (en) | A kind of boiler exhaust gas residual neat recovering system | |
| CN103278018B (en) | Connect and move back unit flue gas system | |
| CN107477649A (en) | Turbo-generator Set integrates afterheat utilizing system and method | |
| CN202484597U (en) | Pressure-reducing heating device for gas | |
| CN104950933B (en) | Stabilizer for system steam pressure | |
| CN203454493U (en) | Flash steam pressurization device | |
| CN204830579U (en) | Low -grade heat utilization device | |
| CN207455724U (en) | A kind of combined heat electricity generation system | |
| CN208366138U (en) | A kind of energy-saving staged steam temperature control system | |
| CN204534539U (en) | Boiler water filling system | |
| CN204438296U (en) | Industrial smoke UTILIZATION OF VESIDUAL HEAT IN joint network system | |
| CN209308764U (en) | A kind of vapor-recovery system of air compressor machine and steam turbine | |
| CN102410671B (en) | A kind of heat pump that utilizes hot waste water source |
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: 20140903 |