CN207741063U - A kind of constant temperature and pressure steam boiler controlled by PLC - Google Patents
A kind of constant temperature and pressure steam boiler controlled by PLC Download PDFInfo
- Publication number
- CN207741063U CN207741063U CN201721612416.4U CN201721612416U CN207741063U CN 207741063 U CN207741063 U CN 207741063U CN 201721612416 U CN201721612416 U CN 201721612416U CN 207741063 U CN207741063 U CN 207741063U
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- boiler
- boiler body
- plc
- water level
- combustion chamber
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- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model discloses a kind of constant temperature and pressure steam boilers controlled by PLC,Being arranged one has the tank body of arch furnace bottom as boiler body,In the bottom end of boiler body, installation controls the combustion chamber of air inlet by electric control valve,The vapor discharge channel of boiler body buffering gas tank in parallel,When the air pressure in boiler body is excessive, import in buffering gas tank,Minibuffer gas tank, which is crossed, when air pressure then ensures stable pressure output in back feeding steam to vapor discharge channel,Two electric water level gauges are installed in boiler body inner cavity and water thermometer detects water level therein respectively,Water temperature information,And PLC module is installed by electric cabinet in the side of boiler body,PLC module controls the working condition of air blower in electric control valve and combustion chamber by several relays respectively,So that the air pressure all-the-time stable of boiler exit gas mouth facilitates steam user's normal use in a steady state value,And the energy and user's workload are saved,With good practical value.
Description
Technical field
The utility model is related to a kind of steam boiler, more particularly to a kind of constant temperature and pressure steam boiler controlled by PLC.
Background technology
Boiler is to heat the water body of low temperature, becomes a kind of equipment of high temperature water body or high-temperature vapor, its extensive use
In heating, power generation, energy transport etc..One important role of boiler is to generate steam, then utilizes steam to do work.
The boiler of sole duty production steam is also known as steam boiler.Current steam boiler operational process be added in the boiler it is a certain amount of
Then water body heating is made vapor, then vapor is discharged and is done manual work by water, therefore the steam generated in boiler is preferably one
Steady state value, steam pressure is excessive, mechanical equipment can be caused to overload, and be easy to cause equipment damage or the bursting of boilers, and steam pressure
Too small and output power can be caused insufficient, normal operation or the thermal energy supply for influencing machinery are insufficient.In order to enable the pressure value of boiler
Not exceeded, engineering staff uses many methods, using it is most common be use relief valve, that is, utilize an air bleeding valve, pressing
Power is more than automatic opening after warning value, and steam and extra pressure is discharged, so will result in the waste of the energy and water.And it is right
In insufficient pressure then using increase combustion power method, therefore traditional boiler pressure be in a larger section repeatedly
Concussion so not only affects the demand of steam user, but also brings very big operational inconvenience to steam producers.
At present PLC control technology is widely used in numerous fields.PLC control technology is exclusively in industrial environment
The digital operation electronic system of lower application and design.It uses a kind of programmable memory, and storage inside it executes
The instruction of the operations such as logical operation, sequential control, timing, counting and arithmetical operation, it is defeated by digital or analog input
Out control various types of mechanical equipments or production process.Therefore PLC can receive external signal instruction, and to various fingers
It enables and carries out analyzing processing and then export control command in conjunction with the program of itself, instruct corresponding electric appliance, machine-building into action
Make, to meet the use demand of people.Therefore the producer and related technical personnel of boiler actively consider to use PLC technology
Automatically boiler is controlled, to it is automatic, efficiently the temperature and pressure of high-pressure boiler is adjusted, improve steam boiler
Efficiency, it is energy saving.
Utility model content
The utility model proposes a kind of constant temperature and pressure steam boilers controlled by PLC, solve current traditional pot
Stove leads to the problem of the pressure transient of steam in the process of running, in the gas outlet of a boiler surge tank in parallel, in boiler
Bottom end installation the combustion chamber of air inlet is controlled by regulating valve, installation water-level gauge and water thermometer respectively in the boiler, then in pot
PLC control unit is installed in the side of stove, and PLC control unit receives water-level gauge, the water temperature of water thermometer and pressure gauge monitoring, pressure letter
Number, it is then adjusted according to the corresponding regulating valve of itself program instruction so that the air pressure all-the-time stable of boiler exit gas mouth is one
A steady state value.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solution：
A kind of constant temperature and pressure steam boiler controlled by PLC of the utility model, including boiler body, combustion chamber, buffering gas
Tank and PLC module, the boiler body are the cylinder tank bodies of a vertically-arranged, and the bottom end of the boiler body is equipped with arch stove
The top conducting at bottom, the arch furnace bottom is connected with exhaust manifolds, and the exhaust manifolds run through the center of the boiler body
Exhaust outlet is constituted to its top, the bottom end of the boiler body is connected with the combustion chamber, and the middle part of the combustion chamber inner cavity is logical
It crosses holder and is installed with burning nozzle, the side of the combustion chamber bottom end, which is run through, is connected with fuel conductor, the fuel conductor
The import of the conducting connection burning nozzle, the middle part of the fuel conductor, which concatenates, is equipped with electric control valve, in the combustion chamber
The other side of chamber is equipped with air blower, and the air outlet of the air blower is directed toward the bottom end of the burning nozzle, the boiler body
The side conducting on top is equipped with water inlet line, is worn in the water inlet line and is connected to low water level meter, high water level meter and water thermometer, institute
The bottom end that low water level meter is located at the boiler body inner cavity is stated, the high water level meter is located at the top of the boiler body inner cavity,
The water thermometer is between the low water level meter and the high water level meter, the other side conducting installation on the boiler body top
There is vapor discharge channel, the side of the vapor discharge channel has been installed in parallel the buffering gas tank, described to buffer the one of gas tank
Side conducting is connected with electronic barometer, and the side of the boiler body is installed with switch board, the control by supporting rod
Cabinet is equipped with the PLC module and several relays, the low water level meter, the high water level meter, the water temperature by circuit board
The signal input part of the PLC module, the instruction output end of the PLC module is electrically connected in meter and the electronic barometer
Several relays are electrically connected and control, one end of several relays is electrically connected power supply, and other end difference is electrical
Connect the electric control valve and the air blower.
As a kind of optimal technical scheme of the utility model, the side of the burning nozzle is equipped with telescopic electronics point
Firearm, the PLC module are electrically connected by the relay and control the ignition.
As a kind of optimal technical scheme of the utility model, the appearance bread of the boiler body and the buffering gas tank
It is covered with insulating
As a kind of optimal technical scheme of the utility model, the bottom end conducting of the boiler body is equipped with sewage draining valve.
As a kind of optimal technical scheme of the utility model, the burning nozzle be semicircle sphere structure and with the combustion
The dome for burning room is kept the same spacing.
As a kind of optimal technical scheme of the utility model, the liner of the boiler body and the exhaust manifolds are not by
Rust Steel material is made.
The utility model has the beneficial effects that：The utility model precise structure, using simple, solve current traditional
Boiler leads to the problem of the pressure transient of steam in the process of running, and setting one has the tank body of arch furnace bottom as boiler
Main body, in the bottom end of boiler body, installation controls the combustion chamber of air inlet, the vapor discharge channel of boiler body by electric control valve
Buffering gas tank in parallel imports in buffering gas tank, when air pressure crosses minibuffer gas tank then when the air pressure in boiler body is excessive
Ensure stable pressure output in back feeding steam to vapor discharge channel, two electronic water levels are installed in boiler body inner cavity
Meter and water thermometer detect water level therein, water temperature information respectively, and install PLC module by electric cabinet in the side of boiler body,
PLC module controls the working condition of air blower in electric control valve and combustion chamber by several relays respectively, when air pressure is excessive
Or water temperature over-high, then the input quantity of fuel is reduced by electric control valve, otherwise just increases input quantity so that the gas of boiler exit gas mouth
It presses all-the-time stable in a steady state value, has saved the energy and workload, also enabled the steam condition of output more steady.
Description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
Novel embodiment for explaining the utility model, does not constitute limitations of the present invention together.In the accompanying drawings：
Fig. 1 is the subjective schematic structural cross-sectional view of the utility model；
Fig. 2 is the circuit connection control schematic diagram of the utility model；
In figure：1, boiler body；2, arch furnace bottom；3, exhaust manifolds；4, combustion chamber；5, burn nozzle；6, fuel is led
Pipe；7, electric control valve；8, air blower；9, water inlet line；10, low water level meter；11, high water level meter；12, water thermometer；13, steam is arranged
Put pipeline；14, gas tank is buffered；15, electronic barometer；16, switch board；17, PLC module；18, relay；19, electronic ignition
Device；20, insulating；21, sewage draining valve.
Specific implementation mode
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment 1
As shown in Figs. 1-2, the utility model provides a kind of constant temperature and pressure steam boiler controlled by PLC, including boiler master
Body 1, combustion chamber 4, buffering gas tank 14 and PLC module 17, boiler body 1 are the cylinder tank body of a vertically-arranged, the bottom of boiler body 1
End is equipped with arch furnace bottom 2, and the top conducting of arch furnace bottom 2 is connected with exhaust manifolds 3, and exhaust manifolds 3 run through boiler body 1
Center to its top constitute exhaust outlet, the bottom end of boiler body 1 connects combuster 4, and combustion chamber passes through branch in the middle part of 4 inner cavity
Frame is installed with burning nozzle 5, and the side of 4 bottom end of combustion chamber is connected through fuel conductor 6, the conducting of fuel conductor 6 is connected with
The middle part concatenation of the import of burning nozzle 5, fuel conductor 6 is equipped with electric control valve 7, and the other side of 4 inner cavity of combustion chamber is equipped with
Air blower 8, the air outlet of air blower 8 are directed toward the bottom end of burning nozzle 5, and the side conducting on 1 top of boiler body is equipped with into water
Pipeline 9 is worn in water inlet line 9 and is connected to low water level meter 10, high water level meter 11 and water thermometer 12, and low water level meter 10 is located at boiler body
The bottom end of 1 inner cavity, high water level meter 11 are located at the top of 1 inner cavity of boiler body, and water thermometer 12 is located at low water level meter 10 and high water level
Between meter 11, the other side conducting on 1 top of boiler body is equipped with vapor discharge channel 13, and the side of vapor discharge channel 13 is simultaneously
Connection is equipped with buffering gas tank 14, and the side conducting of buffering gas tank 14 is connected with electronic barometer 15, and the side of boiler body 1 passes through
Supporting rod is installed with switch board 16, and switch board 16 is equipped with PLC module 17 and several relays 18, low water by circuit board
The signal input part of PLC module 17, PLC is electrically connected in position meter 10, high water level meter 11, water thermometer 12 and electronic barometer 15
The instruction output end of module 17 is electrically connected and controls several relays 18, and one end of several relays 18 is electrically connected electricity
Electric control valve 7 and air blower 8 is electrically connected in source, the other end.
The operation principle and flow of the utility model be：It is injected first into the inner cavity of boiler body 1 by water inlet line 9
Water, supreme water-level gauge 11 stop after sending out water level signal, then input fuel and point into burning nozzle 5 by electric control valve 7
Combustion, the water in boiler body 1 is heated at this time becomes steam, and steam is exported by vapor discharge channel 13, is filled to machinery or heating
Acting is set, when electronic barometer 15 detects the hypertonia in boiler body 1, then pressure information is sent to PLC module 17
In, PLC module 17 opens buffering gas tank 14 in parallel therewith by relay 18 and stores steam, while electric control valve 7 being instructed to subtract
The input quantity of few fuel reduces water vapour supply, when electronic barometer 15 detects the hypotony in boiler body 1, then opens
The steam that buffering gas tank 14 stores is opened, the output acting of vapor discharge channel 13 is added to, at this time instruction electric control valve 7 increase combustion again
The input quantity of material increases water vapour supply, so the pressure of steam can be enabled to be maintained in the range of setting, low water level meter 10
After detecting the too low signal of water level, PLC module 17 then instructs water inlet line 9 to carry out moisturizing to boiler body 1, so just persistently
Stable ensure that the utility model normal operation.
Further, the side of burning nozzle 5 is equipped with telescopic ignition 19, and PLC module 17 passes through relay 18
It is electrically connected and is controlled ignition 19, automatic ignition is carried out to burning nozzle 5.
Further, boiler body 1 ease up qi of chong channel ascending adversely tank 14 outer surface cladding be equipped with insulating 20, insulating 20
On the one hand it preserves boiler body 1 to ease up the temperature of qi of chong channel ascending adversely tank 14, air pressure balance is kept, on the other hand also to the utility model periphery
Crowd be isolated and protect.
Further, the bottom end conducting of boiler body 1 is equipped with sewage draining valve 21, and sewage draining valve 21 is kept for incrustation scale to be discharged
1 good heat transfer efficiency of boiler body.
Further, burning nozzle 5 is semicircle sphere structure and is kept the same spacing with the dome of combustion chamber 4, for protecting
Best heat transfer is held, the thermal energy that fuel generates is imported to greatest extent in the water that boiler body 1 contains.
Further, the liner of boiler body 1 and exhaust manifolds 3 are made of stainless steel material, and stainless steel material has good
Corrosion resistance, therefore the utility model can be kept to be worked normally under lasting combustion state.
The utility model precise structure, using simple, setting one has the tank body of arch furnace bottom 2 as boiler body 1,
In the bottom end of boiler body 1, installation controls the combustion chamber 4 of air inlet, the vapor discharge channel 13 of boiler body by electric control valve 7
Buffering gas tank 14 in parallel imports in buffering gas tank 14, when minibuffer gas is crossed in air pressure when the air pressure in boiler body 1 is excessive
Tank 14 then ensures stable pressure output in back feeding steam to vapor discharge channel 13, and two are installed in 1 inner cavity of boiler body
A electric water level gauge and water thermometer 12 detect water level therein, water temperature information respectively, and pass through electric cabinet in the side of boiler body
PLC module 17 is installed, PLC module 17 controls the work of air blower in electric control valve 7 and combustion chamber 4 by several relays respectively
Make state, when air pressure is excessive or water temperature over-high, then reduce the input quantity of fuel by electric control valve 7, otherwise just increases input quantity,
So that the air pressure all-the-time stable of boiler exit gas mouth has saved the energy and workload, has also enabled the vaporous of output in a steady state value
State is more steady, solves the problems, such as that current traditional boiler generates the pressure transient of steam in the process of running, tool
There is good practical value.
Finally it should be noted that：The preferred embodiment that these are only the utility model, is not limited to this practicality
It is novel, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art,
It still can be with technical scheme described in the above embodiments is modified, or is carried out to which part technical characteristic etc.
With replacement.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all include
It is within the protection scope of the utility model.
Claims (6)
1. a kind of constant temperature and pressure steam boiler controlled by PLC, including boiler body (1), combustion chamber (4), buffering gas tank (14)
With PLC module (17), which is characterized in that the boiler body (1) is the cylinder tank body of a vertically-arranged, the boiler body (1)
Bottom end be equipped with arch furnace bottom (2), the arch furnace bottom (2) top conducting is connected with exhaust manifolds (3), the exhaust
Conduit (3) constitutes exhaust outlet, the bottom end connection of the boiler body (1) through center to its top of the boiler body (1)
There is the combustion chamber (4), is fixed by the bracket in the middle part of combustion chamber (4) inner cavity and burning nozzle (5), the burning are installed
The side of room (4) bottom end connects the burning nozzle (5) through fuel conductor (6), fuel conductor (6) conducting is connected with
The middle part concatenation of import, the fuel conductor (6) is equipped with electric control valve (7), the other side installation of combustion chamber (4) inner cavity
There are air blower (8), the air outlet of the air blower (8) to be directed toward the bottom end of the burning nozzle (5), boiler body (1) top
The side conducting at end is equipped with water inlet line (9), is worn in the water inlet line (9) and is connected to low water level meter (10), high water level meter
(11) and water thermometer (12), the low water level meter (10) are located at the bottom end of the boiler body (1) inner cavity, the high water level meter
(11) it is located at the top of the boiler body (1) inner cavity, the water thermometer (12) is located at the low water level meter (10) and the height
Between water-level gauge (11), the other side conducting on boiler body (1) top is equipped with vapor discharge channel (13), the steam
The side of discharge tube (13) has been installed in parallel the buffering gas tank (14), and the side conducting of the buffering gas tank (14) is connected with
The side of electronic barometer (15), the boiler body (1) is installed with switch board (16), the switch board by supporting rod
(16) PLC module (17) and several relays (18), the low water level meter (10), the Gao Shui are equipped with by circuit board
The signal of the PLC module (17) is electrically connected in position meter (11), the water thermometer (12) and the electronic barometer (15)
The instruction output end of input terminal, the PLC module (17) is electrically connected and controls several relays (18), it is several it is described after
One end of electric appliance (18) is electrically connected power supply, and the electric control valve (7) and the air blower (8) is electrically connected in the other end.
2. a kind of constant temperature and pressure steam boiler controlled by PLC according to claim 1, which is characterized in that the burning
The side of nozzle (5) is equipped with telescopic ignition (19), and the PLC module (17) is electrical by the relay (18)
It connects and controls the ignition (19).
3. a kind of constant temperature and pressure steam boiler controlled by PLC according to claim 1, which is characterized in that the boiler
Main body (1) and the outer surface cladding of the buffering gas tank (14) are equipped with insulating (20).
4. a kind of constant temperature and pressure steam boiler controlled by PLC according to claim 1, which is characterized in that the boiler
The bottom end conducting of main body (1) is equipped with sewage draining valve (21).
5. a kind of constant temperature and pressure steam boiler controlled by PLC according to claim 1, which is characterized in that the burning
Nozzle (5) is semicircle sphere structure and is kept the same spacing with the dome of the combustion chamber (4).
6. a kind of constant temperature and pressure steam boiler controlled by PLC according to claim 1, which is characterized in that the boiler
The liner and the exhaust manifolds (3) of main body (1) are made of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721612416.4U CN207741063U (en) | 2017-11-27 | 2017-11-27 | A kind of constant temperature and pressure steam boiler controlled by PLC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721612416.4U CN207741063U (en) | 2017-11-27 | 2017-11-27 | A kind of constant temperature and pressure steam boiler controlled by PLC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207741063U true CN207741063U (en) | 2018-08-17 |
Family
ID=63116463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721612416.4U Expired - Fee Related CN207741063U (en) | 2017-11-27 | 2017-11-27 | A kind of constant temperature and pressure steam boiler controlled by PLC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207741063U (en) |
-
2017
- 2017-11-27 CN CN201721612416.4U patent/CN207741063U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180817 Termination date: 20181127 |