CN203907994U - Numerical control boiler with auxiliary water supplementing mechanism - Google Patents

Numerical control boiler with auxiliary water supplementing mechanism Download PDF

Info

Publication number
CN203907994U
CN203907994U CN201420336696.0U CN201420336696U CN203907994U CN 203907994 U CN203907994 U CN 203907994U CN 201420336696 U CN201420336696 U CN 201420336696U CN 203907994 U CN203907994 U CN 203907994U
Authority
CN
China
Prior art keywords
shell
numerical control
water
turning cylinder
fire grate
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
CN201420336696.0U
Other languages
Chinese (zh)
Inventor
吴建波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN HONGDING NUMERICAL CONTROL BOILER MANUFACTURING Co Ltd
Original Assignee
TIANJIN HONGDING NUMERICAL CONTROL BOILER MANUFACTURING Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TIANJIN HONGDING NUMERICAL CONTROL BOILER MANUFACTURING Co Ltd filed Critical TIANJIN HONGDING NUMERICAL CONTROL BOILER MANUFACTURING Co Ltd
Priority to CN201420336696.0U priority Critical patent/CN203907994U/en
Application granted granted Critical
Publication of CN203907994U publication Critical patent/CN203907994U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Incineration Of Waste (AREA)

Abstract

The utility model discloses a numerical control boiler with an auxiliary water supplementing mechanism. The numerical control boiler comprises a shell, a water jacket, a combustion chamber, a heat exchange chamber and an induced draft fan, wherein the water jacket is a cavity; the shell is fixedly connected outside the water jacket; the combustion chamber and the heat exchange chamber are formed in an inner cavity of the water jacket, and are communicated with each other; the induced draft fan is fixedly connected with the shell; a solar heater is arranged at the top of the shell; a water outlet of the solar heater is connected with a water supplementing port in the shell through a water guide pipe; a temperature monitoring sensor is arranged on the solar heater; the water supplementing port is connected with the water jacket; a check valve is arranged on the water guide pipe; the temperature monitoring sensor and the check valve are in control connection with a water supplementing controller. According to the numerical control boiler, the aim of saving conventional energy resources by virtue of solar energy is fulfilled, using effects required by the boiler after the solar energy is used can also be achieved, the requirements of a user is met, and the numerical control boiler is convenient to popularize and use in the market.

Description

Be provided with the numerical control boiler of secondary water compensation mechanism
Technical field
The utility model belongs to boiler manufacturing technology field, relates in particular to a kind of numerical control boiler that is provided with secondary water compensation mechanism.
Background technology
Boiler is a kind of energy conversion, have the forms such as heat energy of chemical energy in fuel, electric energy, high-temperature flue gas, and through boiler conversion, outwards output has steam, high-temperature water or the organic heat carrier of certain heat energy to the energy of boiler input.Numeric Control Technology is the technology of mechanical movement and the course of work being controlled by digital information, numerical control equipment is to take the electromechanical integrated product that new technology that Numeric Control Technology is representative forms traditional manufacturing industry and emerging manufacturing infiltration, be so-called digitlization equipment, as Digit Control Machine Tool etc.Numerical control boiler refers to the boiler that utilizes digital information to control the operation of boiler and auxiliary device, and general efficiency is higher, energy-conserving and environment-protective.
Along with the development of producing and living, numerical control boiler replaces original plain cylindrical furnace gradually, gradually universal coming.Lasting use along with traditional resources such as coals, traditional resource reduces day by day, the mankind are badly in need of developing new resource, solar energy is the new forms of energy that a kind of mankind have started exploitation, how by Application of Solar Energy to the numerical control boiler of burning traditional resource, and can reach burning traditional resource effect, be always puzzlement people problem.
Given this, the utility model provides a kind of numerical control boiler that is provided with secondary water compensation mechanism, to solve above-mentioned defect.
Summary of the invention
The purpose of this utility model is to provide a kind of numerical control boiler that is provided with secondary water compensation mechanism, to solve above-mentioned problems of the prior art.
In order to realize the purpose of this utility model, the utility model provides a kind of numerical control boiler that is provided with secondary water compensation mechanism, described numerical control boiler comprises shell, water jacket, combustion chamber, heat-exchanging chamber and air-introduced machine, described water jacket is cavity, its external stability is connected with shell, its inner chamber is provided with described combustion chamber and heat-exchanging chamber, described combustion chamber and heat-exchanging chamber are connected, described air-introduced machine is fixedly connected with described shell, it is connected with described heat-exchanging chamber, described shell is provided with shell and is provided with coal filling hole, except cinder notch and carbon removal mouth, described cover top portion is provided with solar heater, the delivery port of described solar heater is connected with the water supplement port on described shell by aqueduct, on described solar heater, be provided with temperature monitoring sensor, described water supplement port is connected with described water jacket, on described aqueduct, be provided with check valve, described monitor controller, check valve all with make-up water controller control connection.
Wherein, described shell is provided with motor, the first turning cylinder, the second turning cylinder and the 3rd turning cylinder, reverse blowing controller, conveyer belt, described motor is by described conveyer belt and described the first turning cylinder, the second turning cylinder, the 3rd turning cylinder is in transmission connection, described the first turning cylinder, the second turning cylinder, the 3rd turning cylinder drives respectively the first shielding plate, the second shielding plate, the 3rd shielding plate swings, described motor is all connected with described reverse blowing controller with described air-introduced machine, the upper end intercommunication of all smoke pipes, on it, be provided with the cigarette lid that can open and close, described cigarette lid is hinged with described shell, can cover under motor drive and open and close at cigarette, described cigarette lid motor is connected with described reverse blowing controller, under boiler normal condition, described the first shielding plate is horizontally disposed with, described the second shielding plate and described the 3rd shielding plate vertically arrange.
Wherein, on described shell, be provided with dust removing funnel, cleaning shaft and air blast, described dust removing funnel is connected with described cleaning shaft by described air blast, the opening of described dust removing funnel is towards described carbon removal mouth, described its is arranged at the top of described carbon removal mouth, described cleaning shaft is connected with the discharge pipe of described air-introduced machine, and described carbon removal mouth is provided with switch sensor, and described switch sensor, air blast are all connected with controller.
Wherein, in described heat-exchanging chamber, be provided with the first fire grate and the second fire grate, described the first fire grate is arranged at described coal filling hole and removes between cinder notch, described the second fire grate is horizontally disposed with, it is arranged at described except between cinder notch and described carbon removal mouth, described the first fire grate comprises fixed axis and a plurality of fire grate bar, a plurality of fire grate bars side by side interval arrange and are all fixedly connected with described fixed axis, the two ends of described fixed axis and described Inner Wall of Combustion Chamber are slidably connected, described fire grate bar comprises arc bottom bar and arc side rod, described arc bottom bar concaves, described arc side rod be two outside recessed, and be individually fixed in the two ends of described arc bottom bar, described fixed axis and stepper motor are in transmission connection, described stepper motor is connected with described controllor for step-by-step motor.
Wherein, described coal filling hole is fixedly connected with material storing box, described coal filling hole is connected with a side of described material storing box, the opposite side of described material storing box with described in be connected with pusher, described pusher comprises cylinder, pusher controller, pushing block, it is inner that described pushing block is arranged at described material storing box, it is fixedly connected with the push rod of described cylinder, under the drive of described cylinder, in described material storing box inside, do side-to-side movement, described cylinder is connected with described pusher controller, in described material storing box inside bottom surface, be provided with electronic scale, described pushing block slides on described electronic scale.
The utility model, compared with prior art, the numerical control boiler that provides a kind of solar energy to combine with heat energy, both realized the object that applied solar energy is saved traditional energy, have and can guarantee to use after solar energy, the required result of use reaching of boiler, has met user's demand, is convenient to promotion and application on market.
Accompanying drawing explanation
Fig. 1 is structural representation a of the present utility model;
Fig. 2 is structural representation b of the present utility model;
In figure, 1-water inlet, 2-the first delivery port, 3-the second delivery port, 4-the 3rd delivery port, 5-coal filling hole, 6-the first fire grate, 7-the second fire grate, 8-is except cinder notch, 9-carbon removal mouth, 10-smoke pipe, 11-dust mouth, 12-combustion chamber, 13-air-introduced machine, 14-cleaning door, 15-heat-exchanging chamber, 16-solar heater, 17-Temperature-control Monitoring sensor, 18-delivery port, 19-aqueduct, 20-check valve, 21-water supplement port.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and beneficial effect clearer, below in conjunction with embodiment, the utility model is further elaborated.Should be understood to specific embodiment described herein only in order to explain the utility model, be not limited to protection domain of the present utility model.
As Fig. 1, shown in Fig. 2, the utility model provides a kind of numerical control boiler that is provided with secondary water compensation mechanism, described numerical control boiler comprises shell, water jacket, combustion chamber, heat-exchanging chamber and air-introduced machine, described water jacket is cavity, its external stability is connected with shell, its inner chamber is provided with described combustion chamber and heat-exchanging chamber, described combustion chamber and heat-exchanging chamber are connected, described air-introduced machine is fixedly connected with described shell, it is connected with described heat-exchanging chamber, described shell is provided with shell and is provided with coal filling hole, except cinder notch and carbon removal mouth, described cover top portion is provided with solar heater, the delivery port of described solar heater is connected with the water supplement port on described shell by aqueduct, on described solar heater, be provided with temperature monitoring sensor, described water supplement port is connected with described water jacket, on described aqueduct, be provided with check valve, described monitor controller, check valve all with make-up water controller control connection.
When using, when the water temperature in solar energy reaches uniform temperature, by automatically control the unlatching of check valve by make-up water controller, water is injected in water jacket, when temperature is during lower than uniform temperature, closing one-way valve.The utility model also can arrange water pump, utilize water pump that water is injected in water jacket, above-mentioned structure, the utilization that both can save traditional energy, the guaranteed effect of using, avoid the non-standing due to solar-heating, the defects such as longer heat time, make to reach result of use, and automatically control and inject and stop injecting, save manpower and materials, improved user's Experience Degree.
In a preferred embodiment, shell described in the utility model is provided with motor, the first turning cylinder, the second turning cylinder and the 3rd turning cylinder, reverse blowing controller, conveyer belt, described motor is by described conveyer belt and described the first turning cylinder, the second turning cylinder, the 3rd turning cylinder is in transmission connection, described the first turning cylinder, the second turning cylinder, the 3rd turning cylinder drives respectively the first shielding plate, the second shielding plate, the 3rd shielding plate swings, described motor is all connected with described reverse blowing controller with described air-introduced machine, the upper end intercommunication of all smoke pipes, on it, be provided with the cigarette lid that can open and close, described cigarette lid is hinged with described shell, can cover under motor drive and open and close at cigarette, described cigarette lid motor is connected with described reverse blowing controller, under boiler normal condition, described the first shielding plate is horizontally disposed with, described the second shielding plate and described the 3rd shielding plate vertically arrange.
When using, by controller, control, automatically open cigarette lid, above-mentioned the first shielding plate, the second shielding plate, the 3rd shielding plate are all arranged on heat-exchanging chamber inside, the first shielding plate is vertically arranged, then the second shielding plate and the 3rd shielding plate are put down to setting,, control air-introduced machine and oppositely dry, utilize wind-force that the dust in smoke pipe is blown out.The utility model is changing on the basis of existing boiler structure, has realized the full-automation that smoke pipe dust is removed, and efficiency is higher, and effect is better, can meet user's user demand, is convenient to industrially promotion and application of product.
In a preferred embodiment, on described shell of the present utility model, be provided with dust removing funnel, cleaning shaft and air blast, described dust removing funnel is connected with described cleaning shaft by described air blast, the opening of described dust removing funnel is towards described carbon removal mouth, described its is arranged at the top of described carbon removal mouth, described cleaning shaft is connected with the discharge pipe of described air-introduced machine, and described carbon removal mouth is provided with switch sensor, and described switch sensor, air blast are all connected with controller.
When using, when opening carbon removal mouth fire door, air blast moves automatically, carried out compared with prior art the exhaust passage that dust is introduced to air-introduced machine by cleaning shaft, at carbon removal mouth, be provided with dust collection mechanism, solved in carbon removal process, pulverous charcoal can be dispersed into airborne problem, clean and the staff's of assurance factory floor is healthy, simultaneously, cleaning shaft is connected with the discharge pipe of air-introduced machine, saved the construction of pollution treatment device, reduced equipment cost, and, dedusting mechanism utilization arranges the sensor control of carbon removal mouth and cut-offs voluntarily, improved operating efficiency, reduced energy resource consumption, in a word, the utility model has met client's user demand, be convenient to promotion and application on market.
In a preferred embodiment, in described heat-exchanging chamber of the present utility model, be provided with the first fire grate and the second fire grate, described the first fire grate is arranged at described coal filling hole and removes between cinder notch, described the second fire grate is horizontally disposed with, it is arranged at described except between cinder notch and described carbon removal mouth, described the first fire grate comprises fixed axis and a plurality of fire grate bar, a plurality of fire grate bars side by side interval arrange and are all fixedly connected with described fixed axis, the two ends of described fixed axis and described Inner Wall of Combustion Chamber are slidably connected, described fire grate bar comprises arc bottom bar and arc side rod, described arc bottom bar concaves, described arc side rod be two outside recessed, and be individually fixed in the two ends of described arc bottom bar, described fixed axis and stepper motor are in transmission connection, described stepper motor is connected with described controllor for step-by-step motor
When using, utilize fixed axis described in controller and stepper motor transmission, thereby drive described the first fire grate swing, and then fuel can fully be burnt, effectively increased the heating surface area of fuel, make fuel combustion more abundant, set the side rod with chimb, effectively fuel is stopped, make when fire grate overturns, fuel is unlikely to drop from described fire grate, in a word, brings great convenience to people's life.
In a preferred embodiment, coal filling hole of the present utility model is fixedly connected with material storing box, described coal filling hole is connected with a side of described material storing box, the opposite side of described material storing box with described in be connected with pusher, described pusher comprises cylinder, pusher controller, pushing block, it is inner that described pushing block is arranged at described material storing box, it is fixedly connected with the push rod of described cylinder, under the drive of described cylinder, in described material storing box inside, do side-to-side movement, described cylinder is connected with described pusher controller, in described material storing box inside bottom surface, be provided with electronic scale, described pushing block slides on described electronic scale.
When using, fuel is added into material storing box, utilizes controller control cylinder to drive pushing block, according to predetermined interval, control pushing block and advance a certain amount of fuel in combustion chamber, reduced artificial participation, reduced operating personnel ground labour intensity and work complexity, guaranteed that operating personnel's is healthy, simultaneously, quantitative filler, makes to improve the utilization ratio of the energy, brings great convenience to people's life.
In a preferred embodiment, described shell of the present utility model is provided with water inlet, the first delivery port, the second delivery port and the 3rd delivery port, the first sub-water jacket, the second sub-water jacket, described water inlet is connected with described water jacket, described the first sub-water jacket, the second sub-water jacket is all arranged on described shell, it is connected with described water jacket by described the first magnetic valve and the second magnetic valve respectively, its respectively with described the first delivery port, the second delivery port is connected, described water jacket is connected with described the 3rd delivery port, the first temperature sensor and the second temperature sensor are arranged at respectively described the first sub-water jacket, in the second sub-water jacket, described the first temperature sensor, the second temperature sensor and the first magnetic valve, the second magnetic valve is all connected with controller.
When using, open the first magnetic valve and the second magnetic valve, the first sub-water jacket and the second sub-water jacket are communicated with water jacket, when described the first temperature sensor or the second temperature sensor monitors surpass pre-set threshold value to water temperature, described the first magnetic valve and the second magnetic valve are closed by control, make the water of described the first sub-water jacket and the second sub-water jacket the inside, no longer participate in water circulation, the water temperature of group water jacket the inside is during lower than pre-set threshold value, described the first magnetic valve and the second magnetic valve are opened, make to communicate with water jacket, water in water jacket flows to sub-water jacket, when temperature reaches, shut electromagnetic valve, such structural design has realized according to demand to be controlled respectively water temperature, saved heat energy, improved fuel availability, reduced the use cost of numerical control boiler, simultaneously, the water consumption of various demands has been carried out to effective control, bring great convenience to people's life.
High temperature due to combustion chamber, at coal filling hole, often user is baked to wound, or, the burning material of the high temperature of the inside, sputter combustion chamber, operating personnel are caused to actual bodily harm, Given this, in preferred embodiment of the present utility model, described coal filling hole is also provided with the first fire door, described the first fire door is arranged at described coal filling hole inner side, it comprises: horizontal fixed bar, a plurality of strip catch, inside described horizontal fixed bar and described coal filling hole, upper edge is hinged, described strip catch and described horizontal fixed bar are slidably connected, described strip catch vertically arranges, it extends beyond inwardly swinging below and only of described coal filling hole below.
When using, put described fuel material into combustion chamber, because the first fire door is unidirectional unlatching, and be a plurality of convenient strip catch that swing, therefore, the second fire door is set neither to be affected and adds materials, and can effectively prevent again the burning material of high temperature, sputters that combustion chamber damages operating personnel or operating personnel are baked wound.
In order to increase heat utilization rate, expand heat exchange area, improve the velocity of liquid assets of hot blast, the utility model is provided with helical form guide groove by the inwall of described smoke pipe.
Controller in utility model, reverse blowing controller are PLC controller.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (5)

1. a numerical control boiler that is provided with secondary water compensation mechanism, it is characterized in that, described numerical control boiler comprises shell, water jacket, combustion chamber, heat-exchanging chamber and air-introduced machine, described water jacket is cavity, its external stability is connected with shell, its inner chamber is provided with described combustion chamber and heat-exchanging chamber, described combustion chamber and heat-exchanging chamber are connected, described air-introduced machine is fixedly connected with described shell, it is connected with described heat-exchanging chamber, described shell is provided with shell and is provided with coal filling hole, except cinder notch and carbon removal mouth, described cover top portion is provided with solar heater, the delivery port of described solar heater is connected with the water supplement port on described shell by aqueduct, on described solar heater, be provided with temperature monitoring sensor, described water supplement port is connected with described water jacket, on described aqueduct, be provided with check valve, described monitor controller, check valve all with make-up water controller control connection.
2. the numerical control boiler that is provided with secondary water compensation mechanism according to claim 1, it is characterized in that, described shell is provided with motor, the first turning cylinder, the second turning cylinder and the 3rd turning cylinder, reverse blowing controller, conveyer belt, described motor is by described conveyer belt and described the first turning cylinder, the second turning cylinder, the 3rd turning cylinder is in transmission connection, described the first turning cylinder, the second turning cylinder, the 3rd turning cylinder drives respectively the first shielding plate, the second shielding plate, the 3rd shielding plate swings, described motor is all connected with described reverse blowing controller with described air-introduced machine, the upper end intercommunication of all smoke pipes, on it, be provided with the cigarette lid that can open and close, described cigarette lid is hinged with described shell, can cover under motor drive and open and close at cigarette, described cigarette lid motor is connected with described reverse blowing controller, under boiler normal condition, described the first shielding plate is horizontally disposed with, described the second shielding plate and described the 3rd shielding plate vertically arrange.
3. the numerical control boiler that is provided with secondary water compensation mechanism according to claim 1 and 2, it is characterized in that, on described shell, be provided with dust removing funnel, cleaning shaft and air blast, described dust removing funnel is connected with described cleaning shaft by described air blast, the opening of described dust removing funnel is towards described carbon removal mouth, it is arranged at the top of described carbon removal mouth, described cleaning shaft is connected with the discharge pipe of described air-introduced machine, described carbon removal mouth is provided with switch sensor, and described switch sensor, air blast are all connected with controller.
4. the numerical control boiler that is provided with secondary water compensation mechanism according to claim 1 and 2, it is characterized in that, in described heat-exchanging chamber, be provided with the first fire grate and the second fire grate, described the first fire grate is arranged at described coal filling hole and removes between cinder notch, described the second fire grate is horizontally disposed with, it is arranged at described except between cinder notch and described carbon removal mouth, described the first fire grate comprises fixed axis and a plurality of fire grate bar, a plurality of fire grate bars side by side interval arrange and are all fixedly connected with described fixed axis, the two ends of described fixed axis and described Inner Wall of Combustion Chamber are slidably connected, described fire grate bar comprises arc bottom bar and arc side rod, described arc bottom bar concaves, described arc side rod be two outside recessed, and be individually fixed in the two ends of described arc bottom bar, described fixed axis and stepper motor are in transmission connection, described stepper motor is connected with described controllor for step-by-step motor.
5. the numerical control boiler that is provided with secondary water compensation mechanism according to claim 1 and 2, it is characterized in that, described coal filling hole is fixedly connected with material storing box, described coal filling hole is connected with a side of described material storing box, the opposite side of described material storing box with described in be connected with pusher, described pusher comprises cylinder, pusher controller, pushing block, it is inner that described pushing block is arranged at described material storing box, it is fixedly connected with the push rod of described cylinder, under the drive of described cylinder, in described material storing box inside, do side-to-side movement, described cylinder is connected with described pusher controller, in described material storing box inside bottom surface, be provided with electronic scale, described pushing block slides on described electronic scale.
CN201420336696.0U 2014-06-23 2014-06-23 Numerical control boiler with auxiliary water supplementing mechanism Expired - Fee Related CN203907994U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420336696.0U CN203907994U (en) 2014-06-23 2014-06-23 Numerical control boiler with auxiliary water supplementing mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420336696.0U CN203907994U (en) 2014-06-23 2014-06-23 Numerical control boiler with auxiliary water supplementing mechanism

Publications (1)

Publication Number Publication Date
CN203907994U true CN203907994U (en) 2014-10-29

Family

ID=51782261

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420336696.0U Expired - Fee Related CN203907994U (en) 2014-06-23 2014-06-23 Numerical control boiler with auxiliary water supplementing mechanism

Country Status (1)

Country Link
CN (1) CN203907994U (en)

Similar Documents

Publication Publication Date Title
CN204062997U (en) With the numerical control boiler of turning fire grate structure
CN109595560A (en) A kind of environment-protecting garbage incinerating device
CN101846387A (en) High-efficiency energy-saving environment-friendly bionic boiler
CN101971765B (en) Efficient energy-saving normal pressure sterilization stove for edible fungi
CN203908028U (en) Numerical control boiler provided with cooling structure at dust outlet
CN203907994U (en) Numerical control boiler with auxiliary water supplementing mechanism
CN206430357U (en) A kind of secondary environment protection vertical boiler utilized of waste heat
CN203980621U (en) Be provided with the numerical control boiler of thermal insulation layer
CN203927872U (en) Be provided with the numerical control boiler of two-way air intake structure
CN204084862U (en) Be provided with the numerical control boiler of auxiliary intake tunnel
CN203907995U (en) Numerical control boiler with flow limiting mechanism
CN203980620U (en) The numerical control boiler of carbon removal mouth with dust collection mechanism
CN203980619U (en) Be provided with the numerical control boiler of adjustable heating arrangement
CN203927875U (en) With the numerical control boiler of smoke pipe back-blowing mechanism
CN206488438U (en) A kind of energy-conserving and environment-protective heating hot water boiler
CN105299885A (en) Numerical control boiler with disincrustant injecting mechanism
CN205261569U (en) Double -deck mechanical stoker formula waste gasification system of burning
CN205205204U (en) Mercury catalyst processing apparatus
CN204063099U (en) With the numerical control boiler of timing filling body
CN204100564U (en) With the numerical control boiler of compound temperature control water nested structure
CN206396115U (en) A kind of coke quenching device waste heat recycling system
CN210569200U (en) Environment-friendly biomass fuel hot blast stove
CN207214437U (en) A kind of boiler of easy cleaning carbon slag and flue dust dirt
CN205504924U (en) Coal -fired steam boiler system is used in enamel reactor production
CN105276569A (en) Numerical control boiler with composite filling mechanism

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: 20141029

Termination date: 20160623

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