CN207014964U - Intaglio printing drying unit - Google Patents
Intaglio printing drying unit Download PDFInfo
- Publication number
- CN207014964U CN207014964U CN201720537956.4U CN201720537956U CN207014964U CN 207014964 U CN207014964 U CN 207014964U CN 201720537956 U CN201720537956 U CN 201720537956U CN 207014964 U CN207014964 U CN 207014964U
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- Prior art keywords
- air
- drying unit
- exhaust gas
- fan blade
- intaglio printing
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- 238000001035 drying Methods 0.000 title claims abstract description 68
- 238000007639 printing Methods 0.000 title claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 68
- 239000002912 waste gas Substances 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000033228 biological regulation Effects 0.000 claims description 37
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a kind of intaglio printing drying unit, including multiple exhaust gas enrichment drying units, connecting tube, frequency converting induced draft fan, the heat-pump hot-water circulatory system；Described exhaust gas enrichment drying unit is provided with fresh wind port at center-aisle；Described exhaust gas enrichment drying unit is provided with waste gas merging chamber, and all waste gas merging chamber are connected by connecting tube with the inlet scoop of frequency converting induced draft fan；The heater is the heat exchanger in the heat-pump hot-water circulatory system.The utility model can solve the problems, such as that multicolor intaglio press drying unit air output and suction air volume difference are excessive, prevent baking oven negative pressure is excessive to cause fresh air suction to cause waste gas excessively to be diluted too much simultaneously, it is also prevented from that fresh air soakage is very few to cause the too high risk for causing flammable gas explosion of exhaust gas concentration, the present apparatus can provide favourable condition for follow-up exhaust-gas treatment by discharge amount of exhaust gas and exhaust gas concentration control in suitable scope.Meanwhile the utility model uses heat pump, energy-conservation and safety are realized.
Description
Technical field
The utility model relates to a kind of drying unit, and in particular to a kind of intaglio printing applied to intaglio press
Drying unit, belong to energy-conserving and environment-protective field.
Background technology
There is organic exhaust gas discharge in the drying course of intaglio printing, the follow-up nothing of the low organic exhaust gas of and concentration big for air quantity
Evilization processing is needed to invest very big equipment cost and processing cost, and heat energy is also resulted in heat dissipation when organic exhaust gas is discharged
Waste, if handling organic exhaust gas using heating power mode of oxidizing, the VOCs treatment of low concentration will need to consume more combustions
Expect it is combustion-supporting, so, by reduce discharge amount of exhaust gas and improve exhaust gas concentration be reduce waste gas pollution control and treatment cost effective ways.
Traditional intaglio printing furnace drying method is that portion secondary cycle drying unit is used in drying system, will be dried
Reenter in baking oven and recycle after the portion mixing fresh air heating of case discharge, only drain a part, can so reduce
Discharge amount of exhaust gas and exhaust gas concentration is improved, but this method is difficult that disengaging air quantity to baking oven is balanced control and total exhaust air rate
Control.It can not accomplish to be fully sealed because of the mouth of being back to back that the baking oven of intaglio press needs setting film, if baking oven amount
Intake is more than exhaust air rate, and the waste gas of oven interior will import and export gap leakage pollution operation outward ring by the film of baking oven
Border, if exhaust air rate exceeds too much than intake, from the excessive fresh air of the gap of baking oven suction waste gas can be made excessively to be diluted dense
Step-down is spent, is unfavorable for follow-up exhaust-gas treatment.
Also there is the air balance for adjusting and being sent between air draught using frequency conversion fan in the prior art, manually adjust frequency conversion wind
The rotating speed of machine adjusts suction air volume to more slightly larger than air output, does not leak to take into account waste gas and prevents waste gas from excessively diluting, but the party
Method has weak point, and its reason is that total exhaust air rate also needs when Parameters variations such as galley number, ink inking amount and thin-film widths
Follow adjustment, use is very inconvenient.
Current printing, which is dried, also the technology dried using heat pump air-heater, and the technology is not yet realized to reduce simultaneously and given up at present
Function in terms of gas discharge capacity and balance air inlet/outlet.
Utility model content
The utility model in view of the shortcomings of the prior art, designs one kind and is suitable for multicolor intaglio press oven and used
Intaglio printing drying unit, the device have produce hot blast, hot air circulation utilizes, possess the air output and return air of printing element
Automatic Balance Regulation function between amount, possesses the function of total exhaust air rate being controlled in zone of reasonableness.
The utility model can adopt the following technical scheme that:
A kind of intaglio printing drying unit, including multiple exhaust gas enrichment drying units, connecting tube, frequency converting induced draft fan, heat pump
Hot water cyclesystem.
Described exhaust gas enrichment drying unit includes casing, breeze fan, air-supply regulation fan blade, forced draft fans and air draught and adjusted
Save fan blade；Provided with air-supply passage, air-suction channel, the heater heated to the air by air-supply passage in casing；Described send
Wind regulation fan blade is arranged in air-supply passage, and described air draught regulation fan blade is arranged in air-suction channel；Air-supply regulation fan blade
Rotating shaft, the rotating shaft of air draught regulation fan blade mutually link；Air-supply regulation fan blade is located at the entrance of air-supply passage and going out for air-supply passage
Between mouthful；Air draught regulation fan blade is between the outlet of the entrance and air-suction channel of air-suction channel；The outlet of air-suction channel is with sending
The entrance connection of wind passage；
Center-aisle is provided with casing, the outlet of air-suction channel connects with center-aisle, entrance and the centre of air-supply passage
Passage connects；
Described exhaust gas enrichment drying unit is provided with fresh wind port at center-aisle；Described exhaust gas enrichment drying unit is set
There is waste gas merging chamber, all waste gas merging chamber are connected by connecting tube with the inlet scoop of frequency converting induced draft fan.
The heater is the heat exchanger in the heat-pump hot-water circulatory system.
The utility model, which solves problem, can also further take following corrective measure：
Further it is improved to：Heat exchanger is that the heat of the heat pump water-heating machine in the heat-pump hot-water circulatory system exports end.
Further it is improved to：Waste gas merging chamber is provided with above described exhaust gas enrichment drying unit, waste gas merging chamber is with
Between the connectivity part of passage be provided with air back valve, the air back valve is counter weight type check-valves.
Further it is improved to：Described fresh wind port is located at the lower section of exhaust gas enrichment drying unit, and the fresh wind port is provided with adjustable
Save the valve of opening degree.
Further it is improved to：It is serious that described fresh wind port can extend to exhaust emission near drying unit by pipeline
Region.
Further it is improved to：The inlet scoop side of described air-introduced machine is provided with wind pressure sensor.
Further it is improved to：Described frequency converting induced draft fan is controlled by wind pressure sensor or flow sensor.
Further it is improved to：Described its air outlet of exhaust gas enrichment drying unit and inlet scoop enter with corresponding baking oven respectively
Air port connects with return air inlet.
Further it is improved to：Described air-supply regulation fan blade and air draught regulation fan blade is made up of axial-flow leaf, air-supply regulation
Fan blade and air draught regulation fan blade pass through mechanical attachment.
Further it is improved to：Described heat exchanger is coil heat exchanger.
Above-mentioned technical proposal has such technique effect:
The utility model can solve the problems, such as that multicolor intaglio press drying unit air output and suction air volume difference are excessive, both
It can maintain to ensure that waste gas does not leak in negative pressure in baking oven, while prevent baking oven negative pressure is excessive from causing fresh air suction to cause waste gas too much
Excessively diluted, be also prevented from that fresh air soakage is very few to cause the too high risk for causing flammable gas explosion of exhaust gas concentration, the present apparatus
Favourable condition can be provided for follow-up exhaust-gas treatment by discharge amount of exhaust gas and exhaust gas concentration control in suitable scope.
Meanwhile the utility model uses heat pump, energy-conservation and safety are realized.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model device.
Application schematic diagram when Fig. 2 is the utility model device external connection baking oven.
Fig. 3 is the structural representation of exhaust gas enrichment drying unit.
Embodiment
The utility model is specifically described with reference to specific embodiment.
Embodiment 1：As shown in Figure 1, Figure 2, Figure 3 shows, a kind of intaglio printing drying unit, including the drying of multiple exhaust gas enrichments are single
1st, connecting tube 2, frequency converting induced draft fan 4 and wind pressure sensor 5；Described exhaust gas enrichment drying unit 1 is provided with new at center-aisle
Air port 3, described exhaust gas enrichment drying unit 1 are provided with waste gas merging chamber 8, and all waste gas merging chamber 8 are by connecting tube 2 with becoming
The inlet scoop connection of frequency air-introduced machine 4, the inlet scoop side of described frequency converting induced draft fan 4 is provided with wind pressure sensor 5.
The air-flow that air-supply passage and air-suction channel inside described exhaust gas enrichment drying unit 1 are provided with two groups of linkages is put down
Weighing apparatus regulation fan blade, the exhaust gas enrichment drying unit 1 is with reference to Chinese patent " exhaust gas enrichment the drying unit " (patent No.
201710306075.6) and " exhaust gas enrichment drying unit " (patent No. 201720486737.8).
As shown in figure 3, exhaust gas enrichment drying unit includes casing 01, breeze fan 02, air-supply regulation fan blade 03, air draught wind
Machine 04 and air draught regulation fan blade 05；Provided with air-supply passage, air-suction channel, to the air heating by air-supply passage in casing 01
Heater 08；Described air-supply regulation fan blade 03 is arranged in air-supply passage, and described air draught regulation fan blade is arranged at air draught and led to
In road；Rotating shaft, the rotating shaft of air draught regulation fan blade 05 of air-supply regulation fan blade 03 mutually link；Air-supply regulation fan blade 03 is located at air-supply
Between the outlet 010 of the entrance and air-supply passage of passage；Air draught regulation fan blade 05 leads to located at the entrance 011 of air-suction channel with air draught
Between the outlet in road；The outlet of air-suction channel connects with the entrance of air-supply passage.
Also include the heat-pump hot-water circulatory system, the heater is the heat exchanger in the heat-pump hot-water circulatory system, heat exchanger
End is exported for the heat of the heat pump water-heating machine in the heat-pump hot-water circulatory system.Described heat exchanger is coil heat exchanger.
Described air-supply regulation fan blade and air draught regulation fan blade is made up of axial-flow leaf, air-supply regulation fan blade and air draught regulation
Fan blade passes through mechanical attachment.
In this example, air-supply passage, air-suction channel are separated by a chamber by dividing plate 07.Air-supply regulation fan blade 03
Rotating shaft, the rotating shaft of air draught regulation fan blade 05 are same rotating shaft.
Center-aisle 080 is provided with casing 1, the outlet of air-suction channel connects with center-aisle 080, the entrance of air-supply passage
Connected with center-aisle 080, described heater 08 is arranged in center-aisle.Waste gas merging chamber is provided with described casing
012。
Waste gas merging chamber 8 is located at the described top of exhaust gas enrichment drying unit 1, waste gas merging chamber 8 and the company of center-aisle
Logical place is provided with air back valve 9, and the air back valve is counter weight type check-valves.
The lower section of described exhaust gas enrichment drying unit 1 is provided with fresh wind port 3, and described fresh wind port 3 is provided with adjustable opening
The valve of degree.
Described fresh wind port 3 is extended near the ink tank of intaglio press by pipeline.
Described frequency converting induced draft fan 4 is controlled by wind pressure sensor 5 or flow sensor.
Its air outlet 7 (exporting 010) of described exhaust gas enrichment drying unit 1 and inlet scoop 6 (i.e. entrance 011) respectively with
The air intake vent of corresponding baking oven 10 connects with return air inlet.
Operation principle
Chinese patent " exhaust gas enrichment drying unit " (patent No. 201710306075.6) and " exhaust gas enrichment drying unit "
(patent No. 201720486737.8) realizes the balance control of each independent exhaust gas enrichment drying unit air output and suction air volume
System, the baking oven based on intaglio press per pass color printing will connect a set of drying unit, therefore multicolor intaglio press
Baking oven needs corresponding multigroup exhaust gas enrichment drying unit to combine work.
The caused hot blast of the exhaust gas enrichment drying unit of embodiment 1 is entered in baking oven 10 by air outlet 7, and waste gas passes through
Baking oven return air inlet is sucked in exhaust gas enrichment drying unit by inlet scoop 6, and the waste gas that the waste gas being discharged first is pooled to above it converges
Collect room, all waste gases merging chamber is connected by connecting tube and connects air-introduced machine by pipeline and draws waste gas.
When the organic exhaust gas volatile quantity of baking oven corresponding to exhaust gas enrichment drying unit is excessive, when exhaust gas concentration is higher, it is necessary to
Gas burst risk can be prevented by supplementing certain fresh air and being diluted.Fresh air can pass through air draught in exhaust gas enrichment drying unit
Negative pressure caused by blower fan, gap is imported and exported by the film of baking oven and entered, but the resistance that the narrow generation in some baking oven gaps is larger,
Cause the inlet deficiency of fresh air.In this case, mended in the negative pressure section of intaglio printing drying unit inner blower blower fan
This problem, and the black area of the space of a whole page according to each printing element can be solved by filling fresh air, adjust the opening degree of fresh wind port valve,
Space of a whole page ink area is bigger to represent that organic solvent volatile quantity is bigger, and the open degree of valve is bigger, otherwise valve is turned down even
Close, fresh air enters all of baking oven gap when closing fresh wind port.The organic exhaust gas that can ensure to collect by aforesaid operations
Concentration is in suitable scope.
The air-suction point of fresh wind port is arranged near ink tank, can be the disordered exhaust gas volatilization suction dress that ink tank distributes
Centralized collection is handled together with baking oven waste gas in putting.
When only printed portions cell operation, the exhaust gas enrichment drying unit of inoperative unit avoids the need for starting, when
When the forced draft fans of exhaust gas enrichment drying unit stop, its blade of the wind check-valve of waste gas merging chamber can be fallen by deadweight, be closed
The fresh air access path of waste gas merging chamber, prevent outside fresh air from entering the excess dilution to waste gas through inoperative unit channel.
Because the number of color of printing changes because of the change of printed matter, also also changed including space of a whole page inking, it is above-mentioned
The result of change is the change for the volatile quantity for causing solvent, so needing to adjust the opening degree of fresh wind port valve, changes fresh air
Inlet controls exhaust gas concentration within the specific limits, wherein also the air exhauster including waste gas end-o f-pipe -control equipment also can be to air inducing
Machine has an impact, and flow is also required to be adjusted, the utility model can by negative pressure value control fresh air soakage, when exhausted air quantity compared with
When major general's fresh wind port valve opens few, the negative pressure value of air-introduced machine inlet scoop can uprise, and will be dropped rotation speed of fan by frequency converter
Low that air draft total amount is reduced, conversely, when exhausted air quantity is bigger larger by fresh wind port valve opening, air-introduced machine can reduce because of negative pressure value
And discharge capacity is increased, the numerical value that above-mentioned control is detected by wind pressure sensor is contrasted to control turning for air-introduced machine with setting numerical value
Speed increase and decrease.
The utility model is suitable for different plant layouts, and the inlet scoop of air-introduced machine can connect the low air draft of head end or end
The exhaust gas enrichment drying unit of amount, it can also be connected with the connecting tube between any two exhaust gas enrichment drying unit.
Heat exchanger of the present utility model uses coil heat exchanger, is used as between coil heat exchanger and heat pump condenser by water
Heat-conduction medium carries out heat exchange, and heat exchanger crosses wind heating to air-supply passage.Heated using heat pump and heat is used as by recirculated water
Conductive medium, the advantage is that can prevent that heat exchanger (such as electrothermal tube) surface temperature is too high, and high concentration fuel gas is carried out
Occurs risk of explosion during heating, further, heat pump heating saves very much, if there is unnecessary heat when waste gas is decomposed by heating power
(such as fume afterheat) absorbs to the evaporator of heat pump, and the heating efficiency of heat pump will further improve, and energy-saving effect is more obvious.
The heat-pump hot-water circulatory system can turn into waste gas heating power oxidation furnaces and intaglio press waste gas checking enrichment equipment
Between bridge, heat pump end heat exchanger can keep the temperature beyond 80 DEG C, using electrothermal tube high temperature in high concentration before avoiding
The risk of explosion brought in the environment of fuel gas, and in the case of waste gas residual heat is unavailable, heat pump can individually be held
The task of heating is carried on a shoulder pole, can more reduce the complexity of waste gas heating power oxidation furnaces waste heat output system, heat pump can receive shakiness
Determine to keep output temperature stable heat during the waste heat of operating mode.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of intaglio printing drying unit, it is characterized in that, including multiple exhaust gas enrichment drying units, connecting tube, frequency conversion air inducing
Machine, the heat-pump hot-water circulatory system；
Described exhaust gas enrichment drying unit includes casing, breeze fan, air-supply regulation fan blade, forced draft fans and air draught regulation wind
Leaf；Provided with air-supply passage, air-suction channel, the heater heated to the air by air-supply passage in casing；Described air-supply is adjusted
Section fan blade is arranged in air-supply passage, and described air draught regulation fan blade is arranged in air-suction channel；The rotating shaft of air-supply regulation fan blade,
The rotating shaft of air draught regulation fan blade mutually links；Air-supply regulation fan blade located at air-supply passage entrance and air-supply passage outlet it
Between；Air draught regulation fan blade is between the outlet of the entrance and air-suction channel of air-suction channel；The outlet of air-suction channel is logical with air-supply
The entrance connection in road；
Center-aisle is provided with casing, the outlet of air-suction channel connects with center-aisle, the entrance and center-aisle of air-supply passage
Connection；
Described exhaust gas enrichment drying unit is provided with fresh wind port at center-aisle；Described exhaust gas enrichment drying unit is provided with useless
Gas merging chamber, all waste gas merging chamber are connected by connecting tube with the inlet scoop of frequency converting induced draft fan；
The heater is the heat exchanger in the heat-pump hot-water circulatory system.
2. intaglio printing drying unit according to claim 1, it is characterized in that：Heat exchanger is in the heat-pump hot-water circulatory system
Heat pump water-heating machine heat output end.
3. intaglio printing drying unit according to claim 1, it is characterized in that：Above described exhaust gas enrichment drying unit
Provided with waste gas merging chamber, the connectivity part of waste gas merging chamber and center-aisle is provided with air back valve, and the air back valve is counterweight
Formula check-valves.
4. intaglio printing drying unit according to claim 1, it is characterized in that：Described fresh wind port dries located at exhaust gas enrichment
The lower section of dry unit, the fresh wind port are provided with the valve of adjustable opening degree.
5. intaglio printing drying unit according to claim 1, it is characterized in that：Described fresh wind port can be extended by pipeline
The serious region of exhaust emission near to drying unit.
6. intaglio printing drying unit according to claim 1, it is characterized in that：The inlet scoop side of described air-introduced machine is set
There is wind pressure sensor.
7. intaglio printing drying unit according to claim 6, it is characterized in that：Described frequency converting induced draft fan is sensed by blast
Device or flow sensor control.
8. intaglio printing drying unit according to claim 1, it is characterized in that：Described exhaust gas enrichment drying unit its give
Air port and inlet scoop connect with the air intake vent and return air inlet of corresponding baking oven respectively.
9. intaglio printing drying unit according to claim 1, it is characterized in that：Described air-supply regulation fan blade and air draught are adjusted
Section fan blade is made up of axial-flow leaf, and air-supply regulation fan blade and air draught regulation fan blade pass through mechanical attachment.
10. intaglio printing drying unit according to claim 2, it is characterized in that：Described heat exchanger is coil heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720537956.4U CN207014964U (en) | 2017-05-15 | 2017-05-15 | Intaglio printing drying unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720537956.4U CN207014964U (en) | 2017-05-15 | 2017-05-15 | Intaglio printing drying unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207014964U true CN207014964U (en) | 2018-02-16 |
Family
ID=61475842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720537956.4U Active CN207014964U (en) | 2017-05-15 | 2017-05-15 | Intaglio printing drying unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207014964U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110154521A (en) * | 2019-05-29 | 2019-08-23 | 宁波欣达印刷机器有限公司 | A kind of system dried printed matter and tail gas is concentrated |
| CN112571938A (en) * | 2019-05-24 | 2021-03-30 | 鸿博昊天科技有限公司 | A environmental protection printing machine for enclosed environment |
| CN113613911A (en) * | 2019-07-29 | 2021-11-05 | 惠普发展公司，有限责任合伙企业 | Pressure in printing apparatus |
-
2017
- 2017-05-15 CN CN201720537956.4U patent/CN207014964U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112571938A (en) * | 2019-05-24 | 2021-03-30 | 鸿博昊天科技有限公司 | A environmental protection printing machine for enclosed environment |
| CN112571938B (en) * | 2019-05-24 | 2022-04-12 | 鸿博昊天科技有限公司 | A environmental protection printing machine for enclosed environment |
| CN110154521A (en) * | 2019-05-29 | 2019-08-23 | 宁波欣达印刷机器有限公司 | A kind of system dried printed matter and tail gas is concentrated |
| CN113613911A (en) * | 2019-07-29 | 2021-11-05 | 惠普发展公司，有限责任合伙企业 | Pressure in printing apparatus |
| US11701907B2 (en) | 2019-07-29 | 2023-07-18 | Hewlett-Packard Development Company, L.P. | Pressure diffrentials at printers |
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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: 20180720 Address after: 528300 A District, No. 37, South Road, Shunde District, Shunde, Foshan. Patentee after: FOSHAN ANJIEBAO ENERGY SAVING EQUIPMENT Co.,Ltd. Address before: 528300 Foshan, Guangdong Shunde District, Daliang Road 4, 5 5 Patentee before: Lin Jingfeng |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240119 Address after: Room 1305, No. 2 Zhongshan Third Road, East District, Zhongshan City, Guangdong Province, 528400 Patentee after: Zhongshan Dayu Environmental Protection Technology Co.,Ltd. Address before: 528300 A District, No. 37, South Road, Shunde District, Shunde, Foshan. Patentee before: FOSHAN ANJIEBAO ENERGY SAVING EQUIPMENT Co.,Ltd. |
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| TR01 | Transfer of patent right |