CN204594276U - The automatic steam heater of a kind of closed loop - Google Patents
The automatic steam heater of a kind of closed loop Download PDFInfo
- Publication number
- CN204594276U CN204594276U CN201520009339.8U CN201520009339U CN204594276U CN 204594276 U CN204594276 U CN 204594276U CN 201520009339 U CN201520009339 U CN 201520009339U CN 204594276 U CN204594276 U CN 204594276U
- Authority
- CN
- China
- Prior art keywords
- steam heater
- closed loop
- temperature
- control system
- automatic steam
- 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 - Fee Related
Links
Abstract
The utility model relates to a kind of steam heater of the automatic adjusting water outlet temperature based on closed-loop control, no matter what structure its inside of steam heater used is at present, its admission, intake tunnel are generally hand-operated valve, its outlet does not have flow and temperature measurement unit, namely obtains required temperature and the water yield by manual adjustment.The air intake of steam heater of the present utility model, water inlet respectively install a motor-driven valve, install a temperature sensor at delivery port, install a flowmeter.Have a controller, this controller receives the signal of temperature sensor, flowmeter, and controls the motor-driven valve of import, and under the effect of this controller, this Novel vapor-water mixer can carry out the automatic adjustment of water temperature, the water yield simultaneously.
Description
Technical field
The utility model belongs to chemical field, for needing the occasion being manufactured the hot water of uniform temperature and the water yield by high steam and cold water.
Background technology
Hot water is a kind of necessity in chemical plant, and manufacturing one of means of hot water is that high steam and cold water are mixed to get by steam heater, and therefore steam heater is the common equipment in chemical plant.No matter what structure its inside of steam heater used is at present, its admission, intake tunnel are generally hand-operated valve, its outlet does not have flow and temperature measurement unit, namely required temperature and the water yield is obtained by manual adjustment, this hybrid mode efficiency is low, and cannot the information integerated of this for steam heater conventional equipment in plant control system.
Summary of the invention
The automatic steam heater of the closed loop that the utility model proposes, propose based on the problems referred to above exactly, adopt servo control technique, adopt control algolithm, automatic control regulates leaving water temperature and the flow of steam heater, very big convenient purification factory uses, and is conducive to factory and carries out informationization integration, improves factory's operation and management level.
The automatic steam heater of a kind of closed loop, automatically can regulate temperature and the flow of hot water outlet, comprise control system, steam heater and sensor, wherein, described control system comprises controller, control valve one and control valve two; Steam heater comprises cold water pipes, jet chimney, mixing unit and hot water pipeline; Sensor adopts flowmeter and temperature sensor; Control system application request can control to adjust valve one and control valve two, thus the inlet of steam regulation and cold water, and the mixing of steam and cold water is carried out in mixing unit, sensor can the temperature of Real-Time Monitoring hot water outlet and flow, and according to the temperature measured and flow, the inlet of steam and cold water is automatically adjusted.
In the exit of described closed loop automatic steam heater, a temperature sensor is installed.
In the exit of described closed loop automatic steam heater, a flowmeter is installed.
At air intake and the water inlet installation electric control valve of the automatic steam heater of described closed loop.
Described controller has communication interface, can connect the control system on upper strata, for receiving the instruction of top level control system, and the data of this steam heater is sent to top level control system.
By increasing electric control valve in import, the automatic adjustment of the amount of feeding can be realized.By increasing flowmeter and temperature sensor in exit, but the flow of Real-time Collection delivery port and temperature actual amount, real physical is input to a closed loop controller, adopt certain intelligent algorithm (as polynary pid control algorithm, empirical equation, look-up table etc.), the electric control valve of import department is automatically adjusted, just can realize the automatic control to output quantity.
The utility model major advantage is that the automation of the water yield and temperature that can realize required hot water regulates, and raises the efficiency; Meanwhile, achieve the automation of steam heater, informationization integration, be more suitable for construction information chemical plant.
Accompanying drawing explanation
Fig. 1 is the automatic steam heater pie graph of closed loop.
Detailed description of the invention
The automatic steam heater of closed loop, according to concrete the choice of diameter electric control valve, electric control valve adopts analogue enlargement or digital control, can adopt current mode or voltage mode control, can directly realize controlling the aperture of control valve, its control accuracy should be better than 0.5%.
Volumetric flowmeter selected by flowmeter, and its measuring accuracy is determined according to requirements, and as 0.2 grade, flowmeter should be able to export instantaneous delivery, or has the proportional pulse signal of same instantaneous delivery.
The platinum resistance temperature sensor that temperature sensor should select reaction speed fast or digital temperature sensor, precision is determined according to requirements, and as ± 0.5 DEG C, output form can be analog or digital.
Controller is a servo controller, and be a multiple-unt controller, this controller receives the instantaneous flow rate signal from flowmeter, the temperature signal from temperature sensor, input as feedback quantity, compare with predetermined amount, then export to electric control valve, according to polynary pid algorithm (or other algorithm comprises empirical equation, tables look-up), realize the requirement water yield and the temperature of hot water output.
Controller has Ethernet and RS485 EBI, adopts data communication protocol, can be connected, receive the regulating command from plant control system, and upload this equipment for information about with the plant control system on upper strata.
Controller should to be installed in hard casing and to be fixedly mounted on steam heater.Controller box has line outlet, available Ge Lan joint, is convenient to adopt metal tube protection cable.
All metal tube should be passed through, to carry out the protection of cable to the cabling of controller from electric control valve, flowmeter, thermometer.
Claims (5)
1. the automatic steam heater of closed loop, automatically can regulate temperature and/or the flow of hot water outlet, it is characterized in that: comprise control system, steam heater and sensor, and wherein, described control system comprises controller, control valve one and control valve two; Steam heater comprises cold water pipes, jet chimney, mixing unit and hot water pipeline; Sensor adopts temperature sensor and/or flowmeter; Control system application request can control to adjust valve one and control valve two, thus the inlet of steam regulation and cold water, and the mixing of steam and cold water is carried out in mixing unit, sensor can the temperature of Real-Time Monitoring hot water outlet and flow, and according to the temperature measured and flow, the inlet of steam and cold water is automatically adjusted.
2. the automatic steam heater of closed loop according to claim 1, is characterized in that: install a temperature sensor in the exit of the automatic steam heater of described closed loop.
3. the automatic steam heater of closed loop according to claim 1, is characterized in that: install a flowmeter in the exit of the automatic steam heater of described closed loop.
4. the automatic steam heater of closed loop according to claim 1, is characterized in that: at air intake and the water inlet installation electric control valve of the automatic steam heater of described closed loop.
5. the automatic steam heater of the closed loop according to any one of claim 1-4, it is characterized in that: described controller has communication interface, the control system on upper strata can being connected, for receiving the instruction of top level control system, and the data of this steam heater being sent to top level control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520009339.8U CN204594276U (en) | 2015-01-07 | 2015-01-07 | The automatic steam heater of a kind of closed loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520009339.8U CN204594276U (en) | 2015-01-07 | 2015-01-07 | The automatic steam heater of a kind of closed loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204594276U true CN204594276U (en) | 2015-08-26 |
Family
ID=53930422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520009339.8U Expired - Fee Related CN204594276U (en) | 2015-01-07 | 2015-01-07 | The automatic steam heater of a kind of closed loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204594276U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114149124A (en) * | 2021-05-31 | 2022-03-08 | 佛山市美的清湖净水设备有限公司 | Water production equipment, control method and control device of water production equipment |
-
2015
- 2015-01-07 CN CN201520009339.8U patent/CN204594276U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114149124A (en) * | 2021-05-31 | 2022-03-08 | 佛山市美的清湖净水设备有限公司 | Water production equipment, control method and control device of water production equipment |
| CN114149124B (en) * | 2021-05-31 | 2023-11-21 | 佛山市美的清湖净水设备有限公司 | Water production equipment, control method and control device thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103925641B (en) | A kind of heating network hydraulic equilibrium Automatic adjustment method | |
| CN107728685B (en) | Intelligent constant-temperature water control method | |
| CN102927621B (en) | Heat metering system and large-area heat metering system, and heat metering allocation method | |
| CN201819351U (en) | Device for controlling air output at tail end of task air conditioning | |
| CN105571142B (en) | Constant temperature gas water heater with remote temperature regulation and cold water heat compensation control | |
| CN110736129A (en) | Intelligent balance regulation and control system and method for urban heat supply pipe networks | |
| CN201262443Y (en) | Climate compensating system by heat supply of boiler | |
| CN102830731A (en) | Integral flow and temperature control device | |
| CN101398129A (en) | High precision flow automatic balance device | |
| CN102830730B (en) | System and method for intelligent water supply temperature control test | |
| CN204594276U (en) | The automatic steam heater of a kind of closed loop | |
| CN104503509A (en) | Induction furnace water temperature constant automatic control system and method | |
| CN105652908B (en) | Portable heat exchange station branch line hydraulic pipeline balances automatic debugging device | |
| CN202281311U (en) | Flow regulating system of heating radiator thermal property detection device | |
| CN202854601U (en) | Water-through intelligent temperature control testing system | |
| CN100570267C (en) | A kind of control method of heat exchanger heat transfer amount | |
| CN104499486B (en) | A kind of Optimum Regulation system being applicable to the water flowing of concrete dam middle and later periods | |
| CN108427443B (en) | High-precision automatic oxygenation device and automatic oxygenation method | |
| CN102520618A (en) | Coking heating furnace radiation outlet temperature control method under error tolerance mechanism | |
| CN104456970A (en) | Method for controlling maximum boiled water flow of rapid-heating water boiler without water tank | |
| CN106066656A (en) | The temperature control set for adjusting of a kind of heat exchange station automatic control system and method | |
| CN201526028U (en) | Controllable environment factor variable speed water circulation system | |
| CN106839083B (en) | A kind of intelligence heat management system and its management method | |
| CN205678768U (en) | Portable thermal substation courtyard heating pipe network hydraulic equilibrium adjusting means | |
| CN1820589A (en) | Automatic controller for temperature of fry nursing pool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20200107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |