CN203478198U - Boiler drum water supply control mechanism of coal gasification direct combustion boiler - Google Patents

Boiler drum water supply control mechanism of coal gasification direct combustion boiler Download PDF

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Publication number
CN203478198U
CN203478198U CN201320448158.6U CN201320448158U CN203478198U CN 203478198 U CN203478198 U CN 203478198U CN 201320448158 U CN201320448158 U CN 201320448158U CN 203478198 U CN203478198 U CN 203478198U
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CN
China
Prior art keywords
boiler
steam dome
coal gasification
steam
water supply
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
Application number
CN201320448158.6U
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Chinese (zh)
Inventor
陈克军
陈运华
戴增琦
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WENZHOU HUATAI INDUSTRY EQUIPMENT ENGINEERING Co Ltd
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WENZHOU HUATAI INDUSTRY EQUIPMENT ENGINEERING Co Ltd
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Priority to CN201320448158.6U priority Critical patent/CN203478198U/en
Application granted granted Critical
Publication of CN203478198U publication Critical patent/CN203478198U/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a boiler drum water supply control mechanism of a coal gasification direct combustion boiler. The coal gasification direct combustion boiler comprises a steam boiler, wherein a boiler drum is arranged in the steam boiler and connected with a boiler drum water supply pipe; the outer end of the boiler drum water supply pipe is communicated with a water storage tank; the coal gasification direct combustion boiler further comprises a control mechanism and an execution mechanism; the execution mechanism comprises a water pump arranged on the boiler drum water supply pipe; a water pump frequency converter in driving connection with the water pump is arranged on the water pump; and the control mechanism comprises a magnetic float type liquid level gauge and a main controller. The boiler drum water supply control mechanism of the coal gasification direct combustion boiler has the advantages that the boiler drum can be in a reasonable state, and normal operation of the boiler is guaranteed.

Description

The boiler-steam dome water supply controlling organization of coal gasification direct-combustion boiler
Technical field
The utility model relates to electron controls technology field, specifically refers to a kind of steam boiler drum water supply controlling organization of coal gasification direct-combustion boiler.
Background technology
The existing coal-burned industrial boiler thermal efficiency is generally low, and Air Pollutant Emission exceeds standard, and does not meet the situation demands of current energy-saving and emission-reduction.And fuel-oil or fuel-gas boiler operating cost is high, general user is difficult to bear.
Coal gasification direct-combustion boiler is a kind of equipment of the generation steam that coal is changed into coal gas and then burn, its structure includes gas generator and steam boiler two parts, compared to traditional coal-burning boiler, it has advantages of that operating cost is low, environmental pollution is little.The structure of existing coal gasification direct-combustion boiler has generally comprised gas generator and steam boiler two parts, wherein in steam boiler, be provided with boiler-steam dome, water is housed in boiler-steam dome, generation steam is used for being heated, the water level of boiler-steam dome is controlled the important step of the trouble free service that is coal gasification direct-combustion boiler, and lack of water or full water are all to cause potential safety hazard.
Summary of the invention
The purpose of this utility model is the shortcoming and defect existing in order to overcome prior art, and provide a kind of, can automatically control the water level of boiler-steam dome, ensures the boiler-steam dome water supply controlling organization of its coal gasification direct-combustion boiler in reasonable water level.
For achieving the above object, the technical solution of the utility model is that coal gasification direct-combustion boiler includes steam boiler, in this steam boiler, be provided with boiler-steam dome, on described boiler-steam dome, be connected with boiler-steam dome feed pipe, the outer end of this boiler-steam dome feed pipe is communicated with water tank, also include controlling organization and executing agency, described executing agency includes the water pump being arranged on boiler-steam dome feed pipe, is provided with water pump and drives the pump variable frequency device being connected on this water pump; Described controlling organization includes in lower unit: magnetic-float type liquid level, be arranged on boiler-steam dome, and for detection of water level in boiler-steam dome, and defeated water level signal; Master controller, the water level signal of described magnetic-float type liquid level meter is connected to master controller by the input of CAN bus, this master controller is processed the water level signal of magnetic-float type liquid level meter, and instruction is carried out in generation, execution instruction is passed to PLC cyclelog, in this PLC cyclelog, be provided with PID intelligence adjustment module, described PLC cyclelog output control instruction, and coordinate with pump variable frequency device control connection.
Further arrange is to be also connected with LCD display, keyboard interface and memory cell on described master controller.
Further arrange is to be also connected with audible-visual annunciator on described master controller.
The utility model utilizes magnetic-float type liquid level meter to detect the water level of boiler-steam dome, and water level signal is outputed to the unit such as master controller, PLC cyclelog and carry out computing and coordinated, drive water pump supply water or cut off the water, and then the water level of boiler-steam dome is controlled, make it maintain reasonable water level, guaranteed normally carrying out of gas burner internal-response.Once occur that boiler drum level is abnormal, audible-visual annunciator is reported to the police, to tackle in time equipment fault, eliminates safe hidden trouble in time.
Below in conjunction with specification drawings and specific embodiments, the utility model is described further.
Accompanying drawing explanation
Fig. 1 the utility model specific embodiment structural plan;
Fig. 2 the utility model specific embodiment theory diagram.
The specific embodiment
Below by embodiment, the utility model is specifically described, only for the utility model is further described, can not be interpreted as the restriction to the utility model protection domain.
The specific embodiment of the present utility model as shown in Figure 1-2, include steam boiler 1, in this steam boiler 1, be provided with boiler-steam dome 11, on described boiler-steam dome 11, be connected with boiler-steam dome feed pipe 12, the outer end of this boiler-steam dome feed pipe 12 is communicated with water tank 13, also include controlling organization and executing agency, described executing agency includes the water pump 14 being arranged on boiler-steam dome feed pipe, is provided with water pump and drives the pump variable frequency device 15 being connected on this water pump; Described controlling organization includes with lower unit:
Magnetic-float type liquid level meter 21, is arranged on boiler-steam dome 11, for detection of water level in boiler-steam dome, and defeated water level signal; Master controller 22, the water level signal of described magnetic-float type liquid level meter is connected to master controller 22 by 23 inputs of CAN bus, the water level signal of 22 pairs of magnetic-float type liquid level meters of this master controller is processed, and instruction is carried out in generation, execution instruction is passed to PLC cyclelog 24, in this PLC cyclelog, be provided with PID intelligence adjustment module 241, described PLC cyclelog output control instruction, and coordinate with pump variable frequency device 15 control connections.Master controller 22 described in the present embodiment adopts the ARM7TDMI-S microcontroller LPC2368 of NXP company, and described CAN bus preferably adopts the CAN bus that Philips company model is SJA1000.
In addition, on the master controller described in the present embodiment, be also connected with LCD display 25, keyboard interface 26 and memory cell 27.In addition, on the master controller described in the present embodiment 22, be also connected with audible-visual annunciator 28.

Claims (3)

1. the boiler-steam dome water supply controlling organization of a coal gasification direct-combustion boiler, coal gasification direct-combustion boiler includes steam boiler, in this steam boiler, be provided with boiler-steam dome, on described boiler-steam dome, be connected with boiler-steam dome feed pipe, the outer end of this boiler-steam dome feed pipe is communicated with water tank, it is characterized in that: also include controlling organization and executing agency, described executing agency includes the water pump being arranged on boiler-steam dome feed pipe, is provided with water pump and drives the pump variable frequency device being connected on this water pump; Described controlling organization includes in lower unit: magnetic-float type liquid level, be arranged on boiler-steam dome, and for detection of water level in boiler-steam dome, and defeated water level signal; Master controller, the water level signal of described magnetic-float type liquid level meter is connected to master controller by the input of CAN bus, this master controller is processed the water level signal of magnetic-float type liquid level meter, and instruction is carried out in generation, execution instruction is passed to PLC cyclelog, in this PLC cyclelog, be provided with PID intelligence adjustment module, described PLC cyclelog output control instruction, and coordinate with pump variable frequency device control connection.
2. the boiler-steam dome water supply controlling organization of a kind of coal gasification direct-combustion boiler according to claim 1, is characterized in that: on described master controller, be also connected with LCD display, keyboard interface and memory cell.
3. the boiler-steam dome water supply controlling organization of a kind of coal gasification direct-combustion boiler according to claim 1, is characterized in that: on described master controller, be also connected with audible-visual annunciator.
CN201320448158.6U 2013-07-24 2013-07-24 Boiler drum water supply control mechanism of coal gasification direct combustion boiler Expired - Fee Related CN203478198U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320448158.6U CN203478198U (en) 2013-07-24 2013-07-24 Boiler drum water supply control mechanism of coal gasification direct combustion boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320448158.6U CN203478198U (en) 2013-07-24 2013-07-24 Boiler drum water supply control mechanism of coal gasification direct combustion boiler

Publications (1)

Publication Number Publication Date
CN203478198U true CN203478198U (en) 2014-03-12

Family

ID=50226523

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320448158.6U Expired - Fee Related CN203478198U (en) 2013-07-24 2013-07-24 Boiler drum water supply control mechanism of coal gasification direct combustion boiler

Country Status (1)

Country Link
CN (1) CN203478198U (en)

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140312

Termination date: 20200724

CF01 Termination of patent right due to non-payment of annual fee