CN107255094A - A kind of ceramic brick press energy saving in pumping station control method and device - Google Patents

A kind of ceramic brick press energy saving in pumping station control method and device Download PDF

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Publication number
CN107255094A
CN107255094A CN201710317770.2A CN201710317770A CN107255094A CN 107255094 A CN107255094 A CN 107255094A CN 201710317770 A CN201710317770 A CN 201710317770A CN 107255094 A CN107255094 A CN 107255094A
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China
Prior art keywords
pressure
system pressure
solenoid directional
overflow valve
energy saving
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CN201710317770.2A
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Chinese (zh)
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CN107255094B (en
Inventor
黄蓉
夏建华
余锐平
黄国雄
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Foshan Henglitai Machinery Co Ltd
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Foshan Henglitai Machinery Co Ltd
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/14—Energy-recuperation means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/255—Flow control functions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/88—Control measures for saving energy

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Control Of Presses (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

The invention discloses a kind of ceramic brick press energy saving in pumping station control method, including：When ceramic brick press pushes away the brick cloth stage, self-control cabinet real-time detecting system pressure；When system pressure is not up to the goal systems pressure of setting, pass through the first solenoid directional control valve and the first overflow valve control system pressure；When system pressure reaches the goal systems pressure of setting, pass through the second solenoid directional control valve and the second overflow valve control system pressure.The invention also discloses a kind of ceramic brick press energy saving in pumping station control method based on ceramics pressure brick process and a kind of ceramic brick press energy saving in pumping station control device.Using the present invention, it can effectively ensure that pump realizes that high and low pressure is seamless, shock-free switching during press cycle, so as to realize the large and small switching of discharge capacity；Meanwhile, in the case where ensureing press normal work, realize under the reduction of press energy consumption, normal operation, power saving rate is about 5%.

Description

A kind of ceramic brick press energy saving in pumping station control method and device
Technical field
Field, more particularly to a kind of ceramic brick press energy saving in pumping station control method, one are manufactured the present invention relates to ceramic device Plant the ceramic brick press energy saving in pumping station control method based on ceramics pressure brick process and a kind of control of ceramic brick press energy saving in pumping station Device.
Background technology
As shown in figure 1, the pumping plant of current ceramic brick press uses one constant pressure variable displacement pump of asynchronous machine band and come to whole Individual system provides power source.
Concrete operating principle is as follows：When solenoid directional control valve YV501 obtains electric, main pump plays pressure, by adjusting overflow valve V501's Aperture can adjust the size of system pressure.During compressor operation, motor speed is constant, and variable pump is according to the system pressure of setting Power adjusts the discharge capacity of pump.
When system pressure is relatively low, pump is in maximum pump discharge state；When system pressure increases to overflow valve V501 pressure, Pumpage reduces, and output flow reduces, and pressure reduces therewith.
According to formula：NPO=△PQP/ 60, wherein, NPOFor pump power output, Δ P is pump inlet outlet pressure differential, QPFor pump Output flow.
Ceramic press is failure to actuate pushing away brick cloth stage, whole press, and now whole system pressure has almost no change, pump Output flow is smaller.According to above-mentioned formula, if system pressure reduced, now Δ P reduces, and pump power output is reduced by, then Energy can be saved to a certain extent.
The content of the invention
The technical problems to be solved by the invention are, there is provided a kind of ceramic brick press energy saving in pumping station control method, can have Effect reduction press energy consumption.
The technical problems to be solved by the invention also reside in there is provided it is a kind of based on ceramics pressure brick process ceramic brick press pump Stand energy-saving control method, can effectively reduce press energy consumption.
The technical problems to be solved by the invention are also resided in there is provided a kind of ceramic brick press energy saving in pumping station control device, can Effectively reduce press energy consumption.
In order to solve the above-mentioned technical problem, the invention provides a kind of ceramic brick press energy saving in pumping station control method, including： When ceramic brick press pushes away the brick cloth stage, self-control cabinet real-time detecting system pressure；When system pressure is not up to the target system of setting During system pressure, pass through the first solenoid directional control valve and the first overflow valve control system pressure；When system pressure reaches the target of setting During system pressure, system pressure is reduced by the second solenoid directional control valve and the second overflow valve.
As the improvement of such scheme, it is described setting is reached when system pressure goal systems pressure when, pass through second electricity The method of magnetic reversal valve and the second overflow valve reduction system pressure includes：When system pressure reaches the goal systems pressure of setting When, system enters delay stage；After delay stage terminates, second solenoid directional control valve obtains electric, and is dropped by the second overflow valve Low system pressure.
As the improvement of such scheme, the time of the delay stage is 150 ~ 250ms.
As the improvement of such scheme, the oil pressure relief of second overflow valve is 3 ~ 6Mpa.
Correspondingly, present invention also offers a kind of ceramic brick press energy saving in pumping station controlling party based on ceramics pressure brick process Method, including：
In S1, press cycle pressing process, the first solenoid directional control valve always it is electric, pass through the first overflow valve control system pressure；
S2, press, which enters, pushes away the brick cloth stage；
S3, when system pressure reaches the goal systems pressure of setting, system enters delay stage, after delay stage terminates, the Two solenoid directional control valves obtain electric, and reduce system pressure by the second overflow valve；
S4, feeding is completed, and is moved beam and is declined, the second solenoid directional control valve dead electricity, and passes through the first overflow valve control system pressure；
S5, compacting is completed, and moves beam backhaul to a high position；
S6, judges whether system pressure reaches the purpose system pressure of setting；
S7, when system pressure reaches the goal systems pressure of setting, system enters delay stage, after delay stage terminates, institute State the second solenoid directional control valve and obtain electric, and system pressure is reduced by the second overflow valve.
As the improvement of such scheme, the time of the delay stage is 150 ~ 250ms.
As the improvement of such scheme, the oil pressure relief of second overflow valve is 3 ~ 6Mpa.
Correspondingly, present invention also offers a kind of ceramic brick press energy saving in pumping station control device, including motor, pumping plant, One solenoid directional control valve, the first overflow valve, the second solenoid directional control valve and the second overflow valve；
First solenoid directional control valve and the first overflow valve formation, first group of control device；
Second solenoid directional control valve and the second overflow valve formation, second group of control device；
First group of control device and second group of control device are separate, and control system pressure is to adjust system energy respectively Consumption.
Implement the present invention, have the advantages that：
Invention is detected to system pressure in real time using two sets of independent control devices using self-control cabinet.Work as system pressure During the goal systems pressure not up to set, when the first solenoid directional control valve obtains electric, main pump plays pressure, by adjusting the first overflow valve Aperture can be with the size of control system pressure；When system pressure reaches the goal systems pressure of setting, program increase 200ms is left Right delay, the second solenoid directional control valve again it is electric, now system pressure is determined by the size of the second overflow valve, so as to reach following Beneficial effect：
（1）Effectively ensure that pump realizes that high and low pressure is seamless, shock-free switching during press cycle, so as to realize discharge capacity Large and small switching；
（2）In the case where ensureing press normal work, realize under the reduction of press energy consumption, normal operation, power saving rate is about For 5%.
Brief description of the drawings
Fig. 1 is existing ceramic brick press pumping plant schematic diagram；
Fig. 2 is the schematic diagram of ceramic brick press energy saving in pumping station control device of the present invention；
Fig. 3 is the flow chart of ceramic brick press energy saving in pumping station control method of the present invention；
Fig. 4 is the flow chart of ceramic brick press energy saving in pumping station control method of the present invention based on ceramics pressure brick process.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with accompanying drawing It is described in detail on step ground.Only this is stated, the side such as the up, down, left, right, before and after of the invention that occurs in the text or will appear from, inside and outside Position word, only on the basis of the accompanying drawing of the present invention, it is not the specific restriction to the present invention.
As shown in figure 1, the pumping plant of current ceramic brick press uses one constant pressure variable displacement pump of asynchronous machine band and come to whole Individual system provides power source.When solenoid directional control valve YV501 obtains electric, main pump plays pressure, can by the aperture for adjusting overflow valve V501 With the size of control system pressure.
Referring to Fig. 2, Fig. 2 shows the concrete structure of ceramic brick press energy saving in pumping station control device of the present invention, and it includes electricity Machine M, pumping plant, the first solenoid directional control valve YV501, the first overflow valve V501, the second solenoid directional control valve YV502 and the second overflow valve V502；The first solenoid directional control valve YV501 and the first overflow valve V501, first group of control device of formation；Second electromagnetism is changed To valve YV502 and the second overflow valve V502 second group of control device of formation；First group of control device and second group of control are filled Put separate, control system pressure is to adjust system energy consumption respectively.
It should be noted that ceramic press is failure to actuate pushing away brick cloth stage, whole press, now whole system pressure is several Do not change, pump output flow is smaller.According to formula NPO=△PQP/ 60, if system pressure reduced, now Δ P reduces, Pump power output is reduced by, then can save energy to a certain extent, therefore, does not need pump to provide energy or needs in press During smaller energy（As press pushes away the brick cloth stage）, allow system pressure to be switched to the situation of a low-pressure, energy-conservation can be reached Effect.But, when system pressure is not up to setting high pressure, variable pump can huge discharge output；Set when system pressure reaches When determining high pressure, pumpage can diminish gradually；If pump discharge pressure is switched into low-pressure suddenly, pump can be by compared with favourable opposition Hit, certain influence is had on the service life of pump, therefore, it is to ensure that pump quick, can be carried out smoothly when to carry out pressure switching The key of pressure switching, is also key issue to be solved by this invention.
Unlike the prior art, the present invention is using two sets of independent control devices, and the first solenoid directional control valve YV501 is obtained When electric, main pump plays pressure, can be with the size of control system pressure by the aperture for adjusting the first overflow valve V501.When press is pushing away brick During the cloth stage, the second solenoid directional control valve YV502 obtains electric, and now system pressure is determined by the second overflow valve V502 size, So as to segmentation in real time to system pressure, point situation control, flexibility is strong.
Referring to Fig. 3, Fig. 3 shows the flow chart of ceramic brick press energy saving in pumping station control method of the present invention, and it includes：
S101, when ceramic brick press pushes away the brick cloth stage, self-control cabinet real-time detecting system pressure.
It should be noted that ceramic brick press is pushed away the brick cloth stage, press, which does not need pump to provide energy or press, to be needed Smaller energy, now, allows system pressure to be switched to the situation of a low-pressure, to reach the effect of energy-conservation.
S102, when system pressure is not up to the goal systems pressure of setting, is overflow by the first solenoid directional control valve and first Flow valve control system pressure.
S103, when system pressure reaches the goal systems pressure of setting, passes through the second solenoid directional control valve and the second overflow Valve reduces system pressure.
Specifically, it is described setting is reached when system pressure goal systems pressure when, pass through the second solenoid directional control valve and The method of two overflow valves reduction system pressure includes：
A1, when system pressure reaches the goal systems pressure of setting, system enters delay stage；Wherein, the delay stage Time be 150 ~ 250ms, preferably 200ms.
A2, after delay stage terminates, second solenoid directional control valve obtains electric, and reduces system pressure by the second overflow valve Power.Wherein, the oil pressure relief of second overflow valve is 3 ~ 6Mpa, preferably 5 Mpa, by by the overflow pressure of the second overflow valve When power is transferred to 5 Mpa, energy can be saved to a certain extent.
The present invention is detected to system pressure in real time using self-control cabinet, when system pressure reaches the goal systems pressure of setting During power, program increase 200ms or so delay, the second solenoid directional control valve again it is electric, now system pressure is by the second overflow valve Size is determined.Wherein, increase 200ms delays are exactly the now progress pressure switching in order to ensure that the discharge capacity of pump now is changed into minimum, Pump is impacted smaller.Correspondingly, when need of work elevated pressures, the second solenoid directional control valve dead electricity again.
Referring to Fig. 4, Fig. 4 shows ceramic brick press energy saving in pumping station control method of the present invention based on ceramics pressure brick process Flow chart, it includes：
In S201, press cycle pressing process, the first solenoid directional control valve always it is electric, pass through the first overflow valve control system pressure Power.
S202, press, which enters, pushes away the brick cloth stage.
S203, when system pressure reaches the goal systems pressure of setting, system enters delay stage, and delay stage terminates Afterwards, the second solenoid directional control valve obtains electric, and reduces system pressure by the second overflow valve（Pump up low pressure）.Wherein, the delay rank The time of section is 150 ~ 250ms, preferably 200ms；The oil pressure relief of second overflow valve is 3 ~ 6Mpa, preferably 5 Mpa.
S204, feeding is completed, and is moved beam and is declined, the second solenoid directional control valve dead electricity, and controls system by the first overflow valve System pressure（Pump up high pressure）.
S205, compacting is completed, and moves beam backhaul to a high position.
S206, judges whether system pressure reaches the purpose system pressure of setting.
S207, when system pressure reaches the goal systems pressure of setting, system enters delay stage, and delay stage terminates Afterwards, second solenoid directional control valve obtains electric, and reduces system pressure by the second overflow valve（Pump is in low pressure）, subsequent system etc. Delay to be recycled enters next circulation；When system pressure is not up to the goal systems pressure of setting, continues waiting for, otherwise examine Hydraulic system is surveyed, after trouble shooting, and system pressure is when reaching the goal systems pressure of setting, is again introduced into step S203.
From the foregoing, it will be observed that invention is using two sets of independent control devices, and system pressure is examined in real time using self-control cabinet Survey.When system pressure is not up to the goal systems pressure of setting, when the first solenoid directional control valve obtains electric, main pump plays pressure, by adjusting The aperture of whole first overflow valve can be with the size of control system pressure；When system pressure reaches the goal systems pressure of setting, Program increase 200ms or so delay, the second solenoid directional control valve again it is electric, now system pressure is determined by the size of the second overflow valve It is fixed, so as to reach following beneficial effect：
（1）Effectively ensure that pump realizes that high and low pressure is seamless, shock-free switching during press cycle, so as to realize discharge capacity Large and small switching；
（2）In the case where ensureing press normal work, realize under the reduction of press energy consumption, normal operation, power saving rate is about For 5%.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as Protection scope of the present invention.

Claims (8)

1. a kind of ceramic brick press energy saving in pumping station control method, it is characterised in that including：
When ceramic brick press pushes away the brick cloth stage, self-control cabinet real-time detecting system pressure；
When system pressure is not up to the goal systems pressure of setting, it is by the first solenoid directional control valve and the control of the first overflow valve System pressure；
When system pressure reaches the goal systems pressure of setting, system is reduced by the second solenoid directional control valve and the second overflow valve Pressure.
2. ceramic brick press energy saving in pumping station control method as claimed in claim 1, it is characterised in that described when system pressure reaches To setting goal systems pressure when, the method for reducing system pressure by the second solenoid directional control valve and the second overflow valve includes：
When system pressure reaches the goal systems pressure of setting, system enters delay stage；
After delay stage terminates, second solenoid directional control valve obtains electric, and reduces system pressure by the second overflow valve.
3. ceramic brick press energy saving in pumping station control method as claimed in claim 2, it is characterised in that the delay stage when Between be 150 ~ 250ms.
4. ceramic brick press energy saving in pumping station control method as claimed in claim 2, it is characterised in that second overflow valve Oil pressure relief is 3 ~ 6Mpa.
5. a kind of ceramic brick press energy saving in pumping station control method based on ceramics pressure brick process, it is characterised in that including：
In S1, press cycle pressing process, the first solenoid directional control valve always it is electric, pass through the first overflow valve control system pressure；
S2, press, which enters, pushes away the brick cloth stage；
S3, when system pressure reaches the goal systems pressure of setting, system enters delay stage, after delay stage terminates, the Two solenoid directional control valves obtain electric, and reduce system pressure by the second overflow valve；
S4, feeding is completed, and is moved beam and is declined, the second solenoid directional control valve dead electricity, and passes through the first overflow valve control system pressure；
S5, compacting is completed, and moves beam backhaul to a high position；
S6, judges whether system pressure reaches the purpose system pressure of setting；
S7, when system pressure reaches the goal systems pressure of setting, system enters delay stage, after delay stage terminates, institute State the second solenoid directional control valve and obtain electric, and system pressure is reduced by the second overflow valve.
6. the ceramic brick press energy saving in pumping station control method as claimed in claim 5 based on ceramics pressure brick process, its feature exists In the time of the delay stage is 150 ~ 250ms.
7. the ceramic brick press energy saving in pumping station control method as claimed in claim 5 based on ceramics pressure brick process, its feature exists In the oil pressure relief of second overflow valve is 3 ~ 6Mpa.
8. a kind of ceramic brick press energy saving in pumping station control device, it is characterised in that including motor, pumping plant, the first solenoid directional control valve, First overflow valve, the second solenoid directional control valve and the second overflow valve；
First solenoid directional control valve and the first overflow valve formation, first group of control device；
Second solenoid directional control valve and the second overflow valve formation, second group of control device；
First group of control device and second group of control device are separate, and control system pressure is to adjust system energy respectively Consumption.
CN201710317770.2A 2017-05-08 2017-05-08 A kind of ceramic brick press energy saving in pumping station control method and device Active CN107255094B (en)

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CN107255094B CN107255094B (en) 2019-01-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108818883A (en) * 2018-07-09 2018-11-16 广东天恒液压机械有限公司 Ceramic press electrohydraulic control method and system

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Publication number Priority date Publication date Assignee Title
CN204099315U (en) * 2014-08-28 2015-01-14 佛山市恒力泰机械有限公司 A kind of hydraulic power energy-saving servo control gear
CN105041744A (en) * 2015-06-25 2015-11-11 广州艾默德驱动系统技术有限公司 PLC control system and method of servo energy-saving control system of ceramic press
CN105090141A (en) * 2015-07-02 2015-11-25 太原重工股份有限公司 Hydraulic variable control system and vehicle
CN105370640A (en) * 2014-08-28 2016-03-02 佛山市恒力泰机械有限公司 Hydraulic power servo control device and method of ceramic brick machine
CN106286453A (en) * 2016-10-13 2017-01-04 佛山市三水宏源陶瓷企业有限公司 The double pressure system of ceramic brick press constant pressure variable displacement pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204099315U (en) * 2014-08-28 2015-01-14 佛山市恒力泰机械有限公司 A kind of hydraulic power energy-saving servo control gear
CN105370640A (en) * 2014-08-28 2016-03-02 佛山市恒力泰机械有限公司 Hydraulic power servo control device and method of ceramic brick machine
CN105041744A (en) * 2015-06-25 2015-11-11 广州艾默德驱动系统技术有限公司 PLC control system and method of servo energy-saving control system of ceramic press
CN105090141A (en) * 2015-07-02 2015-11-25 太原重工股份有限公司 Hydraulic variable control system and vehicle
CN106286453A (en) * 2016-10-13 2017-01-04 佛山市三水宏源陶瓷企业有限公司 The double pressure system of ceramic brick press constant pressure variable displacement pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108818883A (en) * 2018-07-09 2018-11-16 广东天恒液压机械有限公司 Ceramic press electrohydraulic control method and system
CN108818883B (en) * 2018-07-09 2023-11-14 广东天恒液压机械有限公司 Ceramic press electrohydraulic control method and system

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Inventor after: Yu Ruiping

Inventor after: Huang Rong

Inventor after: Xia Jianhua

Inventor after: Huang Guoxiong

Inventor before: Huang Rong

Inventor before: Xia Jianhua

Inventor before: Yu Ruiping

Inventor before: Huang Guoxiong

CB03 Change of inventor or designer information
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20171017

Assignee: FOSHAN DLT TECHNOLOGY CO.,LTD.

Assignor: FOSHAN HENGLITAI MACHINERY Co.,Ltd.

Contract record no.: X2022440000056

Denomination of invention: An energy-saving control method and device for ceramic brick press pump station

Granted publication date: 20190129

License type: Common License

Record date: 20220721

Application publication date: 20171017

Assignee: KEDA CLEAN ENERGY Co.,Ltd.

Assignor: FOSHAN HENGLITAI MACHINERY Co.,Ltd.

Contract record no.: X2022440000057

Denomination of invention: An energy-saving control method and device for ceramic brick press pump station

Granted publication date: 20190129

License type: Common License

Record date: 20220721

EE01 Entry into force of recordation of patent licensing contract