CN205209288U - Novel heat exchanger - Google Patents
Novel heat exchanger Download PDFInfo
- Publication number
- CN205209288U CN205209288U CN201520967363.2U CN201520967363U CN205209288U CN 205209288 U CN205209288 U CN 205209288U CN 201520967363 U CN201520967363 U CN 201520967363U CN 205209288 U CN205209288 U CN 205209288U
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- heat exchanger
- tube
- heat
- cooling
- cooling chamber
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Abstract
The utility model relates to a novel heat exchanger belongs to the heat exchanger field, including cooling tube, cooling tube and a plurality of square heat exchange tube that parallels, be equipped with cruciform structure's cooling chamber in the heat exchange tube, the cooling chamber links to each other with the cooling tube, is equipped with the heat dissipation chamber in the angle of heat exchange tube department, and the cooling tube links to each other with the heat dissipation chamber. Its simple structure, use and produce the convenience, can effectively to improve be the production efficiency of equipment, the design of its heater can the heat exchanger refrigeration, can effectually prevent that the interior medium of equipment from freezing, improve equipment's winter resistance. The heat -conducting medium who heats the intracavity can effectually prevent transfer heat, and the shape in chamber is heated in adaptation that simultaneously can be good, is not using can solidifying in time of heater, and the effectual electric heater that prevents leaks electricity, the harm personal safety, and the while can also prevent the condition that the medium in the cooling tube spills over, the effectual life who prolongs the heat exchanger.
Description
Technical field
The utility model relates to a kind of new type heat exchanger, belongs to field of heat exchangers.
Background technology
Heat exchanger (heatexchanger) is the equipment partial heat of hot fluid being passed to cold fluid, also known as heat exchanger.Heat exchanger occupies critical role in chemical industry, oil, power, food and other many industrial production, and its heat exchanger in Chemical Manufacture can be used as heater, cooler, condenser, evaporimeter and reboiler etc., is widely used.Traditional fixed tube-sheet exchanger volume is large, and heat exchange area is little, and heat exchange efficiency is low, uses inconvenience.The kind of heat exchanger is more, particle coagulation type heat exchanger is comprised according to purpose classification, particle coagulation type heat exchanger is used for the heat in absorption fluids, makes the steam heat release in air-flow condense into droplet and on the fin being adsorbed on heat exchanger and coiled pipe, is usually used in the middle of flue gas treating process.But containing sour gas such as more sulfur dioxide in flue gas, the water-soluble rear droplet forming acidity of sour gas, acid droplet can corrode equipment, reduces the service life of equipment.Particle coagulation type heat exchanger can remove the acid droplet in flue gas, but acid droplet is dropped in below after being adsorbed on coiled pipe and fin easily splashes, cause reentrainment, not only reduce the filtration result of particle coagulation type heat exchanger, also can reduce the service life of surrounding devices.Based on this, collecting acid drop becomes problem demanding prompt solution.
Summary of the invention
The purpose of this utility model is: for above-mentioned Problems existing, a kind of new type heat exchanger is provided, its structure is simple, use and convenient for production, can effectively to improve be the production efficiency of equipment, the design of its heater can be freezed by heat exchanger, effectively can prevent the interior medium of equipment from freezing, improve the winter resistance of equipment.
The technical solution adopted in the utility model is as follows:
The utility model discloses a kind of new type heat exchanger, comprise radiating tube, cooling tube and some square heat exchanger tubes side by side, be provided with the cooling chamber of decussate texture in heat exchanger tube, cooling chamber is connected with cooling tube, be provided with heat dissipation cavity at the angle place of heat exchanger tube, radiating tube is connected with heat dissipation cavity.
Further, be provided with heating chamber, another diagonal angle place is provided with heat dissipation cavity at the pair of horns place of cooling chamber outside, the both sides of heat dissipation cavity connect import and the outlet of radiating tube respectively, and the two ends of cooling chamber connect import and the outlet of cooling tube respectively; Electric heater is provided with in described heating chamber.
Further, described electric heater comprises heating wire, insulating heat-conductive pipe, and heating wire is placed in insulating heat-conductive pipe.
Further, the heat-conducting medium that fusing point is 25-75 DEG C is provided with between the madial wall of described heating chamber and insulating heat-conductive pipe.
Further, described heat-conducting medium is for adopting candle.
Further, the projection for flow-disturbing is provided with in described cooling chamber or heat dissipation cavity.
Further, the madial wall of described cooling chamber is provided with corrosion resistant graphite linings.
Further, the inner side of described graphite linings is provided with meniscate projection, and the opening of this projection, towards the import of cooling chamber, this meniscate projection is provided with the concave surface for the formation of local torrent.
Further, the outside of described heat exchanger tube is provided with ceramic insulating layer.
Due to said structure, the structure of heat exchanger is improved, effectively can improve heat exchange efficiency, and the design of this device effectively can utilize each position of device, effectively can prevent the waste of heat exchanger cavity, the flow 10-20% of turnover heat exchanger can be improved, its structure is simple, use and convenient for production, can effectively improve is the production efficiency of equipment, the design of its heater can be freezed by heat exchanger, can effectively prevent the interior medium of equipment from freezing, the winter resistance of raising equipment, heat-conducting medium in heating chamber effectively can prevent transferring heat, the shape of adaptation heating chamber that simultaneously can be good, do not using can solidifying in time of heater, effectively prevent electric heater electrical leakage, harm personal safety, the situation that simultaneously can also prevent the medium in cooling tube from overflowing, effectively extend the service life of heat exchanger.
Further, also comprise heat exchange detection system, this heat exchange detection system comprises:
Heat exchange unit, this heat exchange unit comprises radiating tube, cooling tube and some heat exchanger tubes, has heat dissipation cavity, cooling chamber and heating chamber in heat exchanger tube; Cooling chamber is communicated with cooling tube, and heat dissipation cavity is communicated with radiating tube; Cooling chamber is cross, and heat dissipation cavity is placed in an offside of cooling chamber, and heating chamber is placed in another offside of cooling chamber; Electric heater is provided with in heating chamber; The heat-conducting medium that fusing point is 35-55 DEG C is also filled with in heating chamber;
Detecting unit, comprises the first temperature sensor being located at each cooling chamber exit respectively, the second temperature sensor being located at radiating tube exit, is located at the three-temperature sensor in cooling tube exit;
Valve unit, comprises the first magnetic valve being located at each cooling chamber porch, the second magnetic valve being located at each heat dissipation cavity porch, is located at the 3rd battery valve of radiating tube porch and is located at the 4th magnetic valve of cooling tube porch;
Control unit, comprises MCU, display, memory, keyboard, and this control unit is connected with each electrical equipment of valve unit respectively at heat exchange unit, detecting unit, and controls for the cooperation controlling unit with the parameter reaching setting.
Due to said system, this system is by the switch of MCU Controlling solenoid valve door, by the regulation and control to magnetic valve, obtain suitable cooling liquid, the equipment required for high-precision temperature has very strong practicality and generalization, can effectively prevent from influencing each other between equipment, the normal operation of jamming equipment, meanwhile, native system can improve the heat exchange efficiency 5-10% of heat exchanger.
Further, the control method of described heat exchange detection system:
Step one: each valve of valve unit is placed in half-open position, the medium of heat exchange is passed into respectively in heat exchange unit, the temperature of each its installation place of temperature sensor in detecting unit, and temperature signal is sent to MCU, the temperature of its radiating tube medium is the 50-60% of the temperature of cooling tube medium;
After step 2: MCU receives temperature signal, when the temperature in one cooling chamber exit is less than 45% of setting value, the first magnetic valve that MCU controls the heat dissipation cavity on the side on this cooling chamber connects is with the 50-60% of the flow to its maximum stream flow that reduce the medium in this heat dissipation cavity; The MCU electric heater controlled in heating chamber passes into the electric current of 1-3A, and progressively raises the voltage of electric heater, to raise the temperature of cooling chamber medium; The magnetic valve that MCU controls on this cooling chamber is the 70-80% of its maximum stream flow to control the flow of this cooling chamber medium;
Step 3: when the temperature in a cooling chamber exit is setting value 46%-80%, the first magnetic valve that MCU controls the heat dissipation cavity on the side on this cooling chamber connects is with the 75-80% of the flow to its maximum stream flow that reduce the medium in this heat dissipation cavity, MCU controls the electric heater energising in heating chamber, and progressively raise the voltage of electric heater, to raise the temperature of cooling chamber medium;
Step 4: when the temperature in a cooling chamber exit is setting value 81%-95%, the magnetic valve in the heat dissipation cavity that MCU control is corresponding with the 80-85% of the flow to maximum stream flow that control this cooling chamber medium, thus raises the temperature of cooling chamber medium;
Step 5: when the temperature in a cooling chamber exit is more than 105% of setting value, then MCU controls battery valve on this cooling chamber to reduce the flow in cooling chamber, thus reduces the temperature in cooling chamber exit;
Step 6: when in the some heat exchanger tubes be connected with cooling tube, the temperature value that at least five the first temperature sensors detect is less than 60% of setting value and the temperature value that the three-temperature sensor on cooling tube detects is less than 75% of setting value, then in control the 4th magnetic valve reduction radiating tube, flow is to the 65-73% of its maximum stream flow, and in control the 3rd magnetic valve adjustment cooling tube, flow is to the 45-55% of maximum stream flow;
Step 7: when in the some heat exchanger tubes be connected with cooling tube, the temperature value that at least four the first temperature sensors detect be setting value more than 140% and the temperature value that three-temperature sensor on cooling tube detects is more than 135% of setting value time, then in control the 4th magnetic valve reduction radiating tube, flow is to the 60-70% of its maximum stream flow, and in control the 3rd magnetic valve adjustment cooling tube, flow is to the 75-80% of maximum stream flow.
Due to said method, can by measuring medium temperature value in heat exchanger, and according to different temperature values by heat exchange modes different for the startup of temperature, the efficiency of heat exchange can be improved more rapidly and effectively, avoid the waste of resource, avoid equipment local temperature difference excessive and reduce service life of equipment, effective utilization of equipment can be ensured, to the conscientious Based Intelligent Control of this controller, the heat exchange efficiency of this heat transmission equipment effectively can be improved.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
1, the structure of heat exchanger is improved, effectively can improve heat exchange efficiency, and the design of this device effectively can utilize each position of device, effectively can prevent the waste of heat exchanger cavity, the flow 10-20% of turnover heat exchanger can be improved.
2, its structure simple, use and convenient for production, can effectively to improve be the production efficiency of equipment, the design of its heater can heat exchanger refrigeration, effectively can prevent the interior medium of equipment from freezing, improve the winter resistance of equipment.
3, the heat-conducting medium in heating chamber effectively can prevent transferring heat, the shape of adaptation heating chamber that simultaneously can be good, do not using can solidifying in time of heater, effectively prevent electric heater electrical leakage, harm personal safety, the situation that simultaneously can also prevent the medium in cooling tube from overflowing, effectively extends the service life of heat exchanger.
Accompanying drawing explanation
Fig. 1 is new type heat exchanger front view in the utility model;
Mark in figure: 1-radiating tube, 2-cooling tube, 3-cooling chamber, 4-heat dissipation cavity, 5-heating chamber.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
specific embodiment 1:
As shown in Figure 1, the utility model discloses a kind of new type heat exchanger, comprise radiating tube 1, cooling tube 2 and some square heat exchanger tubes side by side, the cooling chamber 3 of decussate texture is provided with in heat exchanger tube, cooling chamber 3 is connected with cooling tube 2, be provided with heat dissipation cavity 4 at the angle place of heat exchanger tube, radiating tube 1 is connected with heat dissipation cavity 4.Be provided with heating chamber 5 at the pair of horns place of cooling chamber 3 outside, another diagonal angle place is provided with heat dissipation cavity 4, the both sides of heat dissipation cavity 4 connect import and the outlet of radiating tube 1 respectively, and the two ends of cooling chamber 3 connect import and the outlet of cooling tube 2 respectively; Electric heater is provided with in described heating chamber 5.Electric heater comprises heating wire, insulating heat-conductive pipe, and heating wire is placed in insulating heat-conductive pipe.Be provided with the heat-conducting medium that fusing point is 25-75 DEG C between the madial wall of heating chamber 5 and insulating heat-conductive pipe, this heat-conducting medium is for adopting candle.The projection for flow-disturbing is provided with in cooling chamber 3 or heat dissipation cavity 4.The madial wall of cooling chamber 3 is provided with corrosion resistant graphite linings.The inner side of graphite linings is provided with meniscate projection, and the opening of this projection, towards the import of cooling chamber 3, this meniscate projection is provided with the concave surface for the formation of local torrent.The outside of heat exchanger tube is provided with ceramic insulating layer.
Due to said structure, the structure of heat exchanger is improved, effectively can improve heat exchange efficiency, and the design of this device effectively can utilize each position of device, effectively can prevent the waste of heat exchanger cavity, the flow 10-20% of turnover heat exchanger can be improved, its structure is simple, use and convenient for production, can effectively improve is the production efficiency of equipment, the design of its heater can be freezed by heat exchanger, can effectively prevent the interior medium of equipment from freezing, the winter resistance of raising equipment, heat-conducting medium in heating chamber 5 effectively can prevent transferring heat, the shape of adaptation heating chamber 5 that simultaneously can be good, do not using can solidifying in time of heater, effectively prevent electric heater electrical leakage, harm personal safety, the situation that simultaneously can also prevent the medium in cooling tube 2 from overflowing, effectively extend the service life of heat exchanger.
specific embodiment 2:
According to the new type heat exchanger of specific embodiment 1, its heat exchange detection system comprises:
Heat exchange unit, this heat exchange unit comprises radiating tube 1, cooling tube 2 and some heat exchanger tubes, has heat dissipation cavity 4, cooling chamber 3 and heating chamber 5 in heat exchanger tube; Cooling chamber 3 is communicated with cooling tube 2, and heat dissipation cavity 4 is communicated with radiating tube 1; Cooling chamber 3 is in cross, and heat dissipation cavity 4 is placed in an offside of cooling chamber 3, and heating chamber 5 is placed in another offside of cooling chamber 3; Electric heater is provided with in heating chamber 5; The heat-conducting medium that fusing point is 35-55 DEG C is also filled with in heating chamber 5;
Detecting unit, comprise be located at each cooling chamber 3 exit respectively the first temperature sensor, be located at second temperature sensor in radiating tube 1 exit, be located at the three-temperature sensor in cooling tube 2 exit;
Valve unit, comprises the first magnetic valve being located at each cooling chamber 3 porch, the second magnetic valve being located at each heat dissipation cavity 4 porch, is located at the 3rd battery valve of radiating tube 1 porch and is located at the 4th magnetic valve of cooling tube 2 porch;
Control unit, comprises MCU, display, memory, keyboard, and this control unit is connected with each electrical equipment of valve unit respectively at heat exchange unit, detecting unit, and controls for the cooperation controlling unit with the parameter reaching setting.
Due to said system, this system is by the switch of MCU Controlling solenoid valve door, by the regulation and control to magnetic valve, obtain suitable cooling liquid, the equipment required for high-precision temperature has very strong practicality and generalization, can effectively prevent from influencing each other between equipment, the normal operation of jamming equipment, meanwhile, native system can improve the heat exchange efficiency 5-10% of heat exchanger.
specific embodiment 3:
Control method according to the heat exchange detection system of specific embodiment 2:
Step one: each valve of valve unit is placed in half-open position, the medium of heat exchange is passed into respectively in heat exchange unit, the temperature of each its installation place of temperature sensor in detecting unit, and temperature signal is sent to MCU, the temperature of its radiating tube 1 medium is the 50-60% of the temperature of cooling tube 2 medium;
After step 2: MCU receives temperature signal, when the temperature in one cooling chamber 3 exit is less than 45% of setting value, the first magnetic valve that MCU controls the heat dissipation cavity 4 on the side on this cooling chamber 3 connects is with the 50-60% of the flow to its maximum stream flow that reduce the medium in this heat dissipation cavity 4; The MCU electric heater controlled in heating chamber 5 passes into the electric current of 1-3A, and progressively raises the voltage of electric heater, to raise the temperature of cooling chamber 3 medium; The magnetic valve that MCU controls on this cooling chamber 3 is the 70-80% of its maximum stream flow to control the flow of this cooling chamber 3 medium;
Step 3: when the temperature in cooling chamber 3 exit is setting value 46%-80%, the first magnetic valve that MCU controls the heat dissipation cavity 4 on the side on this cooling chamber 3 connects is with the 75-80% of the flow to its maximum stream flow that reduce the medium in this heat dissipation cavity 4, MCU controls the electric heater energising in heating chamber 5, and progressively raise the voltage of electric heater, to raise the temperature of cooling chamber 3 medium;
Step 4: when the temperature in cooling chamber 3 exit is setting value 81%-95%, the magnetic valve in the heat dissipation cavity 4 that MCU control is corresponding with the 80-85% of the flow to maximum stream flow that control this cooling chamber 3 medium, thus raises the temperature of cooling chamber 3 medium;
Step 5: when the temperature in cooling chamber 3 exit is more than 105% of setting value, then MCU controls battery valve on this cooling chamber 3 to reduce the flow in cooling chamber 3, thus reduces the temperature in cooling chamber 3 exit;
Step 6: when in the some heat exchanger tubes be connected with cooling tube 2, the temperature value that at least five the first temperature sensors detect is less than 60% of setting value and the temperature value that the three-temperature sensor on cooling tube 2 detects is less than 75% of setting value, then in control the 4th magnetic valve reduction radiating tube 1, flow is to the 65-73% of its maximum stream flow, and in control the 3rd magnetic valve adjustment cooling tube 2, flow is to the 45-55% of maximum stream flow;
Step 7: when in the some heat exchanger tubes be connected with cooling tube 2, the temperature value that at least four the first temperature sensors detect be setting value more than 140% and the temperature value that three-temperature sensor on cooling tube 2 detects is more than 135% of setting value time, then in control the 4th magnetic valve reduction radiating tube 1, flow is to the 60-70% of its maximum stream flow, and in control the 3rd magnetic valve adjustment cooling tube 2, flow is to the 75-80% of maximum stream flow.
Due to said method, can by measuring medium temperature value in heat exchanger, and according to different temperature values by heat exchange modes different for the startup of temperature, the efficiency of heat exchange can be improved more rapidly and effectively, avoid the waste of resource, avoid equipment local temperature difference excessive and reduce service life of equipment, effective utilization of equipment can be ensured, to the conscientious Based Intelligent Control of this controller, the heat exchange efficiency of this heat transmission equipment effectively can be improved.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. a new type heat exchanger, is characterized in that, comprises radiating tube, cooling tube and some square heat exchanger tubes side by side, the cooling chamber of decussate texture is provided with in heat exchanger tube, cooling chamber is connected with cooling tube, and be provided with heat dissipation cavity at the angle place of heat exchanger tube, radiating tube is connected with heat dissipation cavity.
2. new type heat exchanger according to claim 1, it is characterized in that, be provided with heating chamber at the pair of horns place of cooling chamber outside, another diagonal angle place is provided with heat dissipation cavity, the both sides of heat dissipation cavity connect import and the outlet of radiating tube respectively, and the two ends of cooling chamber connect import and the outlet of cooling tube respectively; Electric heater is provided with in described heating chamber.
3. new type heat exchanger according to claim 2, is characterized in that, described electric heater comprises heating wire, insulating heat-conductive pipe, and heating wire is placed in insulating heat-conductive pipe.
4. new type heat exchanger according to claim 3, is characterized in that, is provided with the heat-conducting medium that fusing point is 25-75 DEG C between the madial wall of described heating chamber and insulating heat-conductive pipe.
5. new type heat exchanger according to claim 1, is characterized in that, is provided with the projection for flow-disturbing in described cooling chamber or heat dissipation cavity.
6. new type heat exchanger according to claim 1, is characterized in that, the madial wall of described cooling chamber is provided with corrosion resistant graphite linings.
7. new type heat exchanger according to claim 6, is characterized in that, the inner side of described graphite linings is provided with meniscate projection, and the opening of this projection, towards the import of cooling chamber, this meniscate projection is provided with the concave surface for the formation of local torrent.
8. new type heat exchanger according to claim 1, is characterized in that, the outside of described heat exchanger tube is provided with ceramic insulating layer.
9. the new type heat exchanger according to any one of claim 1-8, is characterized in that, also comprises heat exchange detection system, and this heat exchange detection system comprises:
Heat exchange unit, this heat exchange unit comprises radiating tube, cooling tube and some heat exchanger tubes, has heat dissipation cavity, cooling chamber and heating chamber in heat exchanger tube; Cooling chamber is communicated with cooling tube, and heat dissipation cavity is communicated with radiating tube; Cooling chamber is cross, and heat dissipation cavity is placed in an offside of cooling chamber, and heating chamber is placed in another offside of cooling chamber; Electric heater is provided with in heating chamber; The heat-conducting medium that fusing point is 35-55 DEG C is also filled with in heating chamber;
Detecting unit, comprises the first temperature sensor being located at each cooling chamber exit respectively, the second temperature sensor being located at radiating tube exit, is located at the three-temperature sensor in cooling tube exit;
Valve unit, comprises the first magnetic valve being located at each cooling chamber porch, the second magnetic valve being located at each heat dissipation cavity porch, is located at the 3rd battery valve of radiating tube porch and is located at the 4th magnetic valve of cooling tube porch;
Control unit, comprises MCU, display, memory, keyboard, and this control unit is connected with each electrical equipment of valve unit respectively at heat exchange unit, detecting unit, and controls for the cooperation controlling unit with the parameter reaching setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520967363.2U CN205209288U (en) | 2015-11-30 | 2015-11-30 | Novel heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520967363.2U CN205209288U (en) | 2015-11-30 | 2015-11-30 | Novel heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205209288U true CN205209288U (en) | 2016-05-04 |
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ID=55847003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520967363.2U Expired - Fee Related CN205209288U (en) | 2015-11-30 | 2015-11-30 | Novel heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205209288U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403074A (en) * | 2015-11-30 | 2016-03-16 | 成都德善能科技有限公司 | Novel heat exchanger |
| CN116045299A (en) * | 2023-02-08 | 2023-05-02 | 华能临沂发电有限公司 | Flue gas cooling device |
-
2015
- 2015-11-30 CN CN201520967363.2U patent/CN205209288U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403074A (en) * | 2015-11-30 | 2016-03-16 | 成都德善能科技有限公司 | Novel heat exchanger |
| CN105403074B (en) * | 2015-11-30 | 2018-11-27 | 浙江国正安全技术有限公司 | A kind of heat exchanger |
| CN116045299A (en) * | 2023-02-08 | 2023-05-02 | 华能临沂发电有限公司 | Flue gas cooling device |
| CN116045299B (en) * | 2023-02-08 | 2023-10-31 | 华能临沂发电有限公司 | Flue gas cooling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Fu Tao Inventor before: Zeng Li |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170502 Address after: The first 111000 Liaoyang city of Liaoning province Liaoyang County Xiangyang Industrial Park saddle Yang Street No. 57 Patentee after: Liaoyang Fluid Equipment Manufacturing Co Ltd Address before: 610000 Chengdu City, Wuhou District Province, the South Ring Road, No. two, No. 1, No. 1, floor 31, No. 5 Patentee before: CHENGDU DESHANNENG TECHNOLOGY CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20181130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |