CN208720507U - A kind of condensing plug and play boiled water machine - Google Patents
A kind of condensing plug and play boiled water machine Download PDFInfo
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- CN208720507U CN208720507U CN201820409902.4U CN201820409902U CN208720507U CN 208720507 U CN208720507 U CN 208720507U CN 201820409902 U CN201820409902 U CN 201820409902U CN 208720507 U CN208720507 U CN 208720507U
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- solenoid valve
- plc controller
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- outlet pipe
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Abstract
The utility model discloses a kind of condensing plug and play boiled water machines, including casing and PLC controller, and the water inlet system, gas handling system, combustion system, the outlet system that connect respectively with PLC controller, and the water inlet system includes the first triple valve；The outlet system includes outlet pipe, and temp probe is provided on outlet pipe, and outlet pipe is connect with water solenoid valve II and water solenoid valve III respectively by the second triple valve, and water solenoid valve III is connected to depotition cock, and water solenoid valve II is connected to the first triple valve by connecting tube.The utility model detects the water temperature whether water temperature in outlet pipe reaches setting by temp probe, judges that the water in outlet pipe is to be expelled directly out, or enter next heat cycles, so that the water for guaranteeing that depotition cock is released all is the primary boiled water that only boils.The condensing plug and play boiled water machine heat production speed of the utility model is fast, can produce boiled water within normal use 5 seconds or so, realizes plug and play, energy saving, health environment-friendly.
Description
Technical field
The utility model belongs to the gas-fired equipment field of life, and in particular to arrives a kind of condensing plug and play boiled water
Machine.
Background technique
Currently, the tradition electricity of life, the generally existing following defect of combustion gas boiled water machine:
1. heat production is slow, generally requiring 5min or so could be boiled by water, often due to people is more, using frequently resulting in generation
Hot water temperature is unstable, and boiling point is not achieved, and cannot continue to provide boiled water；2. the thermal efficiency is low, energy consumption is high, with 100L gas heater
For, the boiled 100L water of 1h needs to consume liquefied petroleum gas 2.3Kg or so；3. the discharge amount of exhaust carbon dioxide is more than country
Standard；4. common electricity, gas burning water heater largely use storage-type, the water in boiled water tank cannot all release (because being afraid of dry combustion method,
The position of tap is relatively high), outmoded remaining boiled water is always housed in boiled water tank, health is unfavorable for.
Such as application No. is 201420281279.0 utility model patents to disclose a kind of full-automatic instant boiling type forced-ventilated condensation
Formula combustion gas boiled water machine, including water inlet system, gas handling system, combustion system and outlet system, above-mentioned each system are controlled with computer
Device connection.Wherein, outlet system includes water tank and depotition cock, and water tank upper is provided with level electrode and muffler, in water tank
Portion is provided with temp probe and auxiliary electrical heater stick, level electrode, temp probe, auxiliary electrical heater stick respectively with computer controller
Connection, water tank lower part connect depotition cock.Anti-dry burning device is set in the combustion system of the utility model, is guaranteed when combustion chamber
Temperature disconnects water, electricity, gas when reaching certain requirement, i.e., the anti-dry burning device only prevents from carrying out the indoor pipeline that burns
Dry combustion method.The utility model stores boiled water by setting water tank, is provided with temp probe and auxiliary electrical heater stick on water tank, but by
In fearness to water tank dry combustion method, therefore the water in water tank cannot be released all, and outmoded remaining boiled water is constantly present in water tank, is burnt repeatedly
It opens, forms thousand boiling water for being unfavorable for health.
Utility model content
The technical problem to be solved by the present invention is to provide it is a kind of go out water speed is fast, energy conservation and environmental protection, healthy and safe cold
Solidifying formula plug and play boiled water machine.
The content of the utility model includes casing, PLC controller, and connect respectively with PLC controller water inlet system, into
Gas system, combustion system, outlet system, which is characterized in that the water inlet system includes the water inlet being linked in sequence by connecting tube
Mouth, water solenoid valve I, the first triple valve, water pump, water proportioning valve, water flow sensor and condenser, wherein water solenoid valve I, water
Pump, water proportioning valve, water flow sensor are connect with PLC controller respectively；
The outlet system includes outlet pipe, and temp probe is provided on outlet pipe, and outlet pipe passes through the second triple valve point
It is not connect with water solenoid valve II and water solenoid valve III, water solenoid valve III is connected to depotition cock, and water solenoid valve II is connected by connecting tube
Logical first triple valve, wherein temp probe, water solenoid valve II, water solenoid valve III are connect with PLC controller respectively.
The utility model is by the second triple valve of setting, so that outlet pipe connects II He of water solenoid valve by connecting tube respectively
Water solenoid valve III, when the temperature that the temp probe on outlet pipe detects water in outlet pipe reaches set temperature, PLC controller
The on-off for controlling the second triple valve and water solenoid valve II, water solenoid valve III prevents water from the company that flow between water solenoid valve II
Adapter tube, but by the connecting tube between water solenoid valve III, while water solenoid valve III is opened, opening depotition cock can release
Boiled water；When the temperature that the temp probe on outlet pipe detects water in outlet pipe is not up to set temperature, PLC controller control
The on-off of second triple valve and water solenoid valve II, water solenoid valve III prevents water from by the connecting tube between water solenoid valve III,
But by the connecting tube between water solenoid valve II, while water solenoid valve II is opened, and the below standard water of temperature passes through connection
Pipe and the first triple valve enter next heat cycles together with the cold water of water inlet, until the temp probe detection on outlet pipe
To water temperature reach set temperature just from depotition cock release.
The gas handling system includes air inlet, gas ratio valve and the air inlet pipe that sequence is connected by connecting tube, air inlet pipe
The combustion chamber of combustion system is connected, the gas ratio valve is connect with PLC controller.
The combustion system includes successively from the bottom up combustion chamber, heat exchanger, exhaust gas forced-drainage device, and the combustion chamber is set
It is equipped with protector of accident extinguishing and pulse ignition device, anti-dry burning device is provided on the heat exchanger, heat exchanger
The connection of one end of water inlet and water inlet pipe, the other end of water inlet pipe are connect with condenser, the water outlet and outlet pipe of heat exchanger
It connects, anti-flue blocking device, the protector of accident extinguishing, pulse firing dress is provided on the exhaust gas forced-drainage device
It sets, anti-dry burning device, exhaust gas forced-drainage device and anti-flue blocking device are connect with PLC controller respectively.
Preferably, the exhaust gas forced-drainage device is exhaust fan.
Preferably, the anti-dry burning device is temperature controller.
Preferably, the protector of accident extinguishing is inductive needle.
Preferably, the anti-flue blocking device is blast switch.
Preferably, display screen is provided on the casing.
In use, pressing the start key on display screen, after setting temperature, system delivers a signal to PLC controller, PLC
Controller controls the starting of exhaust gas forced-drainage device, while PLC controller control water solenoid valve II is closed, and water solenoid valve I, water pump are controlled
It is opened with water proportioning valve, cold water passes sequentially through water inlet, the first triple valve, water pump, water proportioning valve, water flow sensor and connection
Pipe enters condenser.At the same time, when water flow sensor has sensed that water flow is out-of-date, water flow sensor is delivered a signal to
PLC controller, PLC controller control pulse ignition device immediately and light a fire, if loss of ignition or accident extinguishing, accident extinguishing
Protective device delivers a signal to PLC controller, and PLC controller controls gas ratio valve closing immediately, stops air inlet；If putting igneous
Function, then PLC controller control gas ratio valve is opened, and combustion gas passes sequentially through air inlet, gas ratio valve and air inlet pipe and enters combustion
It burns room to burn, the high heat flue gas generated during fuel gas buring is extracted out by exhaust gas forced-drainage device, and cold in condenser
Water carries out heat exchange, and the cold water in condenser obtains preheating for the first time, is handed over later by the heat that water inlet pipe enters combustion system
Parallel operation, while cooling is discharged at low-temperature flue gas from exhaust outlet after the cold water heat exchange in high-temperature flue gas and condenser；Fuel gas buring
The flue gas of the high heat generated in the process carries out reheating to enter the water in heat exchanger from condenser and water inlet pipe, thus
Realize the quick heating to water.
After water is discharged out of heat exchanger, outlet pipe is flowed into, is provided with temp probe on outlet pipe.When temp probe detects
After water temperature reaches at or above the water temperature of setting in outlet pipe, temp probe delivers a signal to PLC controller, PLC control
Device then controls water solenoid valve II and remains off, while controlling the opening of water solenoid valve III, and boiled water flows successively through outlet pipe, second
Triple valve and water solenoid valve III, boiled water can be released by opening depotition cock.It is not reached when temp probe detects water temperature in outlet pipe
To setting water temperature when, temp probe delivers a signal to PLC controller, PLC controller then control water solenoid valve III close,
Water solenoid valve II is opened, while being controlled water proportioning valve and being reduced water flow automatically, and water passes sequentially through outlet pipe, the second triple valve and water
Solenoid valve II enters next heat cycles by the first triple valve and the cold water entered from the inlet later together, until temperature
Water temperature reaches the water temperature Shi Caicong depotition cock discharge of setting in degree probe detection to outlet pipe.
When no longer needing boiled water, the close key on display screen need to be only pressed, system will deliver a signal to PLC control
Device, the electrical component that the control of PLC controller is electrically connected are shut down, then control the opening of water solenoid valve III, by connecting tube and water outlet
Remained water discharge in pipe is clean, water when ensuring that next time uses in pipeline be it is fresh, the remaining for avoiding using last time
Outmoded boiled water heats use again, unhealthful.
The utility model has the beneficial effects that
1. the condensing plug and play boiled water machine heat production speed of the utility model is fast, can produce within normal use 5 seconds or so
Raw boiled water realizes plug and play, energy saving, meanwhile, the utility model is without water reservoir, so as to avoid remaining to retaining
Boiled water heats repeatedly leads to the case where being not conducive to good health.
2. the utility model is by setting triple valve, water solenoid valve and temp probe, when temp probe detection water temperature not
When reaching set temperature, water is heated in pipeline internal circulation flow, until just releasing from depotition cock after temperature is up to standard；When temperature is visited
When the water temperature of head detection reaches set temperature, water is directly released from depotition cock, so that it is guaranteed that the water released from depotition cock is all
It is temperature boiled water up to standard.
3. the utility model is by setting water proportioning valve and gas ratio valve, although originally water temperature throughout the year is different,
But by the cooperation between water proportioning valve and gas ratio valve, water flow and gas flow are automatically adjusted, to ensure that out
Coolant-temperature gage is constant.
Detailed description of the invention
Fig. 1 is the shell mechanism schematic diagram of the utility model.
Fig. 2 is the schematic diagram of internal structure of the utility model.
1 anti-flue blocking device in the figure, 2 heat exchangers, 3 protector of accident extinguishing, 4 pulse ignition devices, 5 temperature
Degree probe, 6 combustion chambers, 7 water solenoid valves III, 8 second triple valves, 9 water solenoid valves II, 10 first triple valves, 11 water solenoid valves I,
12 water inlets, 13 water pumps, 14 water proportioning valves, 15 gas ratio valves, 16 air inlets, 17PLC controller, 18 water flow sensors,
19 depotition cocks, 20 air inlet pipe, 21 anti-dry burning devices, 22 condensers, 23 exhaust gas forced-drainage devices, 24 exhaust outlets, 25 water inlet pipes,
26 outlet pipes, 27 casings, 28 display screens.
Specific embodiment
As shown in Figs. 1-2, the condensing plug and play boiled water machine of the utility model includes casing 27, PLC controller 17, and
Water inlet system, gas handling system, combustion system and the outlet system connecting respectively with PLC controller 17, the water inlet system include
Water inlet 12, the water solenoid valve I 11, the first triple valve 10, water pump 13, water proportioning valve 14, water flow being linked in sequence by connecting tube
Quantity sensor 18 and condenser 22, wherein water solenoid valve I 11, water pump 13, water proportioning valve 14, water flow sensor 18 respectively with
PLC controller 17 connects；
The outlet system includes outlet pipe 26, and temp probe 5 is provided on outlet pipe 26, and outlet pipe 26 passes through the two or three
Port valve 8 is connect with water solenoid valve II 9 and water solenoid valve III 7 respectively, and water solenoid valve III 7 is connected to depotition cock 19, water solenoid valve II 9
It is connected to the first triple valve 10 by connecting tube, wherein temp probe 5, water solenoid valve II 9, water solenoid valve III 7 are controlled with PLC respectively
Device 17 connects.
Preferably, the metal bellows for having S type to arrange in the condenser 22, preferably copper pipe, heat absorption is fast, can be quick
Heat is absorbed, is preheated for the cold water in pipeline, realizes quickly heat transmitting.
The PLC controller of the utility model, control be attached thereto each component when on-off and close be existing skill
Art does not illustrate individually.
The utility model is by the second triple valve 8 of setting, so that outlet pipe 26 connects water solenoid valve by connecting tube respectively
II 9 and water solenoid valve III 7, when the temperature that the temp probe 5 on outlet pipe 26 detects water in outlet pipe 26 reaches opening for setting
When coolant-temperature gage, PLC controller 17 controls the closing of water solenoid valve II 9, water solenoid valve III 7 is opened, and prevents boiled water from flowing to water power magnetic
II 9 direction of valve, but the connecting tube between water solenoid valve III 7 is flowed to, boiled water can be released by opening depotition cock 19；When out
When the temperature that temp probe 5 on water pipe 26 detects water in outlet pipe 26 is not up to the water temperature set, PLC controller
17 control water solenoid valves II 9 are opened, water solenoid valve III 7 is closed, and prevent water from flowing to III 7 direction of water solenoid valve, but flow to
Connecting tube between water solenoid valve II 9, while PLC controller 17 controls water proportioning valve 14 and reduces water flow, temperature is below standard
Water is to pass through connecting tube and the first triple valve 10 to add together with from the cold water that water inlet 12 and solenoid valve I 11 enter into next
Thermal cycle reaches the water temperature water of setting just until the temp probe 5 on outlet pipe 26 detects the water temperature in outlet pipe 26
It is released from depotition cock 19.
The gas handling system includes air inlet 16, gas ratio valve 15 and the air inlet pipe 20 that sequence is connected by connecting tube,
Air inlet pipe 20 connects the combustion chamber 6 of combustion system, and the gas ratio valve 15 is connect with PLC controller 17.
The combustion system successively includes combustion chamber 6, heat exchanger 2, exhaust gas forced-drainage device 23, the burning from the bottom up
Room 6 is provided with protector of accident extinguishing 3 and pulse ignition device 4, is provided with anti-dry burning device 21 on the heat exchanger 2,
The water inlet of heat exchanger 2 is connect with one end of water inlet pipe 25, and the other end of water inlet pipe 25 is connect with condenser 22, i.e. heat exchange
The water inlet of device 2 connects condenser by water inlet pipe 25；The water outlet of heat exchanger 2 is connect with outlet pipe 26, and the exhaust gas is strong
Anti- flue blocking device 1, the protector of accident extinguishing 3, pulse ignition device 4, anti-dry dress are provided on arranging device 23
It sets 21, exhaust gas forced-drainage device 23 and anti-flue blocking device 1 is connect with PLC controller 17 respectively.
Preferably, the exhaust gas forced-drainage device 23 is exhaust fan, for be discharged fuel gas buring in combustion chamber 6 generate it is useless
Gas, carbon dioxide in waste gas content is very low at this time, and far below the discharge standard of country, the feature of environmental protection is good.
The heat exchanger 2 of the utility model is fin heat exchanger, is bought from Hunan Chu Neng Environmental Protection Technology Co., Ltd, model
SRZ type.It is the contact area increased with high-temperature flue gas in combustion chamber 3 using the purpose of fin heat exchanger, heat absorption is fast, can be quick
Heat is absorbed, is heated for the water in pipeline, realizes quickly heat transmitting.
Preferably, the anti-dry burning device 21 is temperature controller, for monitoring the temperature of water in heat exchanger 2, when temperature reaches
When arriving or being more than set temperature, PLC controller 17 is delivered a signal to automatically, and PLC controller 17 controls water solenoid valve I 11, water pump
13, water proportioning valve 14 and gas ratio valve 15 are closed.
Preferably, the protector of accident extinguishing 3 is inductive needle, if accident extinguishing in loss of ignition or combustion process,
Inductive needle incudes less than flame, and protector of accident extinguishing 3 just delivers a signal to PLC controller 17, and PLC controller 17 is controlled immediately
Gas ratio valve 15 processed is closed, and air inlet is stopped.
Preferably, the anti-flue blocking device 1 is blast switch, is mounted near exhaust gas forced-drainage device 23, with
PLC controller 17 is electrically connected, for detecting whether exhaust gas forced-drainage device 23 normally starts, if event occurs in exhaust gas forced-drainage device 23
Barrier does not start normally, and anti-flue blocking device 1 then delivers a signal to PLC controller 17, and PLC controller 17 controls entirely immediately
Thus device powers down is avoided due to continuous high temperature bring security risk in combustion chamber.
Preferably, it is provided with display screen 28 on the casing 27, start key, close key is provided on display screen 28, and
Heat up key, cooling key, convenient for operation.
Preparation before use:
The air inlet 16 of combustion gas is connected to extraneous gas source (or liquefaction gas source), and water inlet 12 is connected to running water pipe,
PLC controller 17 is electrically connected by attaching plug with external power supply.
The course of work of the utility model is as follows:
The start key on display screen 28 is pressed, while utilizing heating key, the good required water temperature of cooling key assignments, start key
After starting, PLC controller 17 controls exhaust gas forced-drainage device 23 and starts, and remaining combustion gas, prevents subsequent igniting in pump drainage combustion chamber 6
Appearance fires phenomenon.
PLC controller 17 controls water solenoid valve II 9 and closes, and water solenoid valve I 11, water pump 13 and water proportioning valve 14 are opened.It is cold
Water enters from water inlet 12, and water flow can only be flowed away by the first triple valve 10 to 13 direction of water pump, and cold water passes through water proportioning valve
14, enter condenser 22 after water flow sensor 18 and connecting tube.
At the same time, when water flow sensor 18 has sensed that water flow is out-of-date, water flow sensor 18 delivers a signal to PLC
Controller 17, PLC controller 17 controls pulse ignition device 4 immediately and lights a fire, if loss of ignition or accident extinguishing, surprisingly put out
Fiery protective device 3 delivers a signal to PLC controller 17, and PLC controller 17 controls the closing of gas ratio valve 15 immediately, stop into
Gas；If lighting a fire successfully, PLC controller 17 controls gas ratio valve 15 and opens, and combustion gas passes through air inlet 16, gas ratio valve 15
And air inlet pipe 20 is burnt into combustion chamber 6, combustion gas combustion process produces exhaust gas forced-drainage device 23 in pump drainage combustion chamber 6 always
Raw high heat flue gas is that the cold water that the cold water in condenser 22 carries out in first time preheating, with condenser 22 carries out heat
Become low-temperature flue gas after exchange, is discharged in air by exhaust outlet 24 later；When water is discharged from condenser 22, pass through water inlet pipe
25 enter the heat exchanger 2 of combustion system, and the flue gas of the high heat generated during fuel gas buring is into heat exchanger 2
Water carries out reheating, to realize the quick heating to water.
After water is discharged out of heat exchanger 2, outlet pipe 26 is flowed into, is provided with temp probe 5 on outlet pipe 26.
When temp probe 5 detects water temperature reaches at or above the water temperature of setting in outlet pipe 26 after, PLC controller 17
Control water solenoid valve II 9 remains off, while water solenoid valve III 7 is opened, and boiled water passes sequentially through outlet pipe 26, the second threeway
Valve 8 and water solenoid valve III 7, boiled water can be released by opening depotition cock 19.
When temp probe 5 detects the water temperature that water temperature is not up to set in outlet pipe 26, PLC controller 17 is controlled
Water solenoid valve III 7 is closed, while water solenoid valve II 9 is opened, and water proportioning valve 14 reduces water flow automatically, and water passes sequentially through outlet pipe
26, the second triple valve 8 and water solenoid valve II 9, later by the first triple valve 10 and from water inlet 12 enter cold water together into
Enter next heat cycles, until temp probe 5 detects when water temperature in outlet pipe 26 reaches the water temperature of setting just from out
Tap 19 is discharged.
When no longer needing boiled water, the close key on display screen 28 need to be only pressed, the control of PLC controller 17 is electrically connected
Electrical component shut down, then control water solenoid valve III 7 opening, the remained water discharge in connecting tube and outlet pipe 26 is clean, with true
Protect water when using next time in pipeline be it is fresh, the outmoded boiled water for the remaining for avoiding using last time heats again to be used, shadow
Ring health.
In the utility model, PLC controller 17 controls 15 air inlet of gas ratio valve by the water temperature that temp probe 5 detects
The size of amount carries out high fire burning when water temperature is not up to the water temperature set, when water temperature reaches the water temperature of setting
The automatic throughput that reduces carries out small fire burning, to guarantee the constant of leaving water temperature.
Claims (8)
1. a kind of condensing plug and play boiled water machine, including casing (27), PLC controller (17), and respectively with PLC controller
(17) water inlet system of connection, gas handling system, combustion system, outlet system, which is characterized in that the water inlet system includes passing through
Water inlet (12), the water solenoid valve I (11), the first triple valve (10), water pump (13), water proportioning valve of connecting tube sequential connection
(14), water flow sensor (18) and condenser (22), wherein water solenoid valve I (11), water pump (13), water proportioning valve (14), water
Flow sensor (18) is connect with PLC controller (17) respectively；
The outlet system includes outlet pipe (26), is provided on outlet pipe (26) temp probe (5), and outlet pipe (26) passes through the
Two triple valves (8) are connect with water solenoid valve II (9) and water solenoid valve III (7) respectively, and water solenoid valve III (7) is connected to depotition cock
(19), water solenoid valve II (9) by connecting tube be connected to the first triple valve (10), wherein temp probe (5), water solenoid valve II (9),
Water solenoid valve III (7) is connect with PLC controller (17) respectively.
2. condensing plug and play boiled water machine as described in claim 1, which is characterized in that the gas handling system includes passing through company
Air inlet (16), gas ratio valve (15) and the air inlet pipe (20) being linked in sequence are taken over, air inlet pipe (20) connects combustion system
Combustion chamber (6), the gas ratio valve (15) connect with PLC controller (17).
3. condensing plug and play boiled water machine as described in claim 1, which is characterized in that the combustion system from the bottom up according to
Secondary includes combustion chamber (6), heat exchanger (2), exhaust gas forced-drainage device (23), and the combustion chamber (6) is provided with accident extinguishing protection
Device (3) and pulse ignition device (4) are provided with anti-dry burning device (21) on the heat exchanger (2), heat exchanger (2)
Water inlet is connect by water inlet pipe (25) connection condenser (22), the water outlet of heat exchanger (2) with outlet pipe (26), and exhaust gas is strong
Be provided with anti-flue blocking device (1) on arranging device (23), the protector of accident extinguishing (3), pulse ignition device (4),
Anti-dry burning device (21), exhaust gas forced-drainage device (23) and anti-flue blocking device (1) are connect with PLC controller (17) respectively.
4. condensing plug and play boiled water machine as claimed in claim 3, which is characterized in that the exhaust gas forced-drainage device (23) is
Exhaust fan.
5. condensing plug and play boiled water machine as claimed in claim 3, which is characterized in that the anti-dry burning device (21) is temperature
Control device.
6. condensing plug and play boiled water machine as claimed in claim 3, which is characterized in that the protector of accident extinguishing
It (3) is inductive needle.
7. condensing plug and play boiled water machine as claimed in claim 3, which is characterized in that the anti-flue blocking device (1)
For blast switch.
8. such as the described in any item condensing plug and play boiled water machines of claim 1-7, which is characterized in that on the casing (27)
It is provided with the display screen (28) connecting with PLC controller (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820409902.4U CN208720507U (en) | 2018-03-26 | 2018-03-26 | A kind of condensing plug and play boiled water machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820409902.4U CN208720507U (en) | 2018-03-26 | 2018-03-26 | A kind of condensing plug and play boiled water machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208720507U true CN208720507U (en) | 2019-04-09 |
Family
ID=65969466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820409902.4U Active CN208720507U (en) | 2018-03-26 | 2018-03-26 | A kind of condensing plug and play boiled water machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208720507U (en) |
-
2018
- 2018-03-26 CN CN201820409902.4U patent/CN208720507U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200407 Address after: No.168, Zhengyang Avenue, Zhengxiang District, Hengyang City, Hunan Province Patentee after: Hengyang Zhongying Environmental Protection Technology Development Co., Ltd Address before: 421000 Hunan Province, Hengyang Zhengxiang District daiyingling Town Village chicken steamed Yang Road No. 168 Patentee before: ZHONGYING KITCHEN TOOLS EQUIPMENT FACTORY, HENGYANG ZHONGYING ENVIRONMENTAL PROTECTION TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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| TR01 | Transfer of patent right |