CN215216219U - Cold sediment machine load balance control system - Google Patents
Cold sediment machine load balance control system Download PDFInfo
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- CN215216219U CN215216219U CN202120585855.0U CN202120585855U CN215216219U CN 215216219 U CN215216219 U CN 215216219U CN 202120585855 U CN202120585855 U CN 202120585855U CN 215216219 U CN215216219 U CN 215216219U
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- cold sediment
- control system
- sediment machine
- furnace
- differential pressure
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Abstract
The utility model provides a cold sediment machine load balance control system, includes furnace, furnace is through many slag pipes and many cold sediment machine switchings down, cold sediment machine includes the converter, and the intercommunication has inlet tube and wet return on each cold sediment, installs respectively on inlet tube and wet return into water governing valve and temperature sensor, installs at differential pressure transmitter on furnace, and temperature sensor and differential pressure transmitter connection director input, intake governing valve and converter connection director output. The utility model discloses can solve current cold sediment machine operating efficiency effectively and hang down, the inhomogeneous equipment loss of load distribution is big, and operating personnel intensity of labour is big, problem that degree of automation is low.
Description
Technical Field
The utility model relates to a cold sediment machine load balance control system.
Background
In recent years, circulating fluidized bed boilers have been rapidly developed due to the advantages of wide fuel adaptability, high combustion efficiency, high desulfurization efficiency and the like, but the problem of difficult slag discharge always influences the safe and stable operation of the boilers. Along with the further promotion of production control requirement, traditional manual operation has can't satisfy the production control demand completely, consequently research cold sediment machine intelligent control has higher realistic meaning.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a cold sediment machine load balance control system, can solve current cold sediment machine operating efficiency effectively and hang down, the inhomogeneous equipment loss of load distribution is big, and operating personnel intensity of labour is big, problem that degree of automation is low.
In order to solve the above problem, the to-be-solved technical scheme of the utility model is:
the utility model provides a cold sediment machine load balance control system, includes furnace, furnace is through many slag pipes and many cold sediment machine switchings down, cold sediment machine includes the converter, and the intercommunication has inlet tube and wet return on each cold sediment, installs respectively on inlet tube and wet return into water governing valve and temperature sensor, installs at differential pressure transmitter on furnace, and temperature sensor and differential pressure transmitter connection director input, intake governing valve and converter connection director output.
The controller is a DCS control system or a PLC control system.
The utility model has the advantages that: the operation precision can be improved, the safe and stable operation of the boiler can be ensured, and the labor intensity of operators can be effectively reduced; meanwhile, the load of the two slag coolers can be uniformly distributed, and the service life of the equipment is prolonged.
Drawings
The invention will be further explained with reference to the drawings:
fig. 1 is a schematic structural diagram of the present invention.
In the figure: the device comprises a hearth 1, a differential pressure transmitter 2, a slag discharging pipe 3, a slag cooler 4, a controller 5, a frequency converter 6, a water return pipe 7, a temperature sensor 8 and a water inlet regulating valve 9, wherein the water inlet regulating valve 9 is connected with a water inlet pipe 10.
Detailed Description
As shown in fig. 1, a slag cooler load balance control system, including furnace 1, furnace 1 is through many slag cooler 4 switchings of slag pipe 3 down, slag cooler 4 includes converter 6, and the intercommunication has inlet tube 10 and wet return 7 on each cold sediment, installs inlet regulating valve 9 and temperature sensor 8 on inlet tube 10 and wet return 7 respectively, installs at differential pressure transmitter 2 on furnace 1, and temperature sensor 8 and differential pressure transmitter connection director 5 input, inlet regulating valve 9 and the 5 output of converter 6 connection director. The controller 5 is a DCS control system or a PLC control system.
The specific implementation steps are as follows: the slag charge of furnace 1 inside gets into respectively in each cold sediment machine 4 through two lower slag pipes 3, and the outside demineralized water gets into each cold sediment machine 4 through inlet tube 10, and with the slag cooling discharge, demineralized water returns to the boiler oxygen-eliminating device through wet return 7 and uses simultaneously after the heat transfer.
The differential pressure transmitter 2 of the hearth 1 measures the differential pressure of the hearth 1 and converts the differential pressure into corresponding material layer thickness, and the measured thickness value is associated with each frequency converter 6 through the PID by the controller 5 so as to control the blanking speed. And simultaneously, the controller 5 uniformly distributes the load, compares the change rate of the frequency of each frequency converter, performs prediction operation according to the result and the actual frequency, predicts the adjustment direction of the next period, automatically modifies the set parameters of the corresponding PID loop, adjusts the frequency output value of the corresponding frequency converter 6, and repeatedly performs comparison and judgment until the frequency values of the frequency converters are approximately the same.
PID association is carried out on the return water temperature of the slag cooler 4 and the controller 5 through a temperature sensor 8, and the frequency feedback of the frequency converter is used as a feedforward parameter of the loop; and PID association is carried out on the return water temperature of the slag cooler 4 and the water inlet regulating valve 9, and the frequency feedback of the frequency converter is used as a feedforward parameter of the loop, so that the temperature of the return water pipe 7 of the slag cooler 4 is ensured to be stable without large fluctuation.
Claims (2)
1. The utility model provides a cold sediment machine load balance control system, includes furnace (1), and furnace (1) is through many lower slag pipe (3) and many cold sediment machines (4) switch-ons, cold sediment machine (4) include converter, its characterized in that: each cold slag is communicated with a water inlet pipe (10) and a water return pipe (7), a water inlet regulating valve (9) and a temperature sensor (8) are respectively installed on the water inlet pipe (10) and the water return pipe (7), a differential pressure transmitter (2) is installed on a hearth (1), the temperature sensor (8) and the differential pressure transmitter are connected with the input end of a controller (5), and the water inlet regulating valve (9) and a frequency converter are connected with the output end of the controller (5).
2. The slag cooler load balance control system according to claim 1, characterized in that: the controller (5) is a DCS control system or a PLC control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120585855.0U CN215216219U (en) | 2021-03-23 | 2021-03-23 | Cold sediment machine load balance control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120585855.0U CN215216219U (en) | 2021-03-23 | 2021-03-23 | Cold sediment machine load balance control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215216219U true CN215216219U (en) | 2021-12-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120585855.0U Active CN215216219U (en) | 2021-03-23 | 2021-03-23 | Cold sediment machine load balance control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215216219U (en) |
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2021
- 2021-03-23 CN CN202120585855.0U patent/CN215216219U/en active Active
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