CN201795708U - Energy-saving heat pipe heat exchanger special for cheese dying machine - Google Patents
Energy-saving heat pipe heat exchanger special for cheese dying machine Download PDFInfo
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- CN201795708U CN201795708U CN201020213171XU CN201020213171U CN201795708U CN 201795708 U CN201795708 U CN 201795708U CN 201020213171X U CN201020213171X U CN 201020213171XU CN 201020213171 U CN201020213171 U CN 201020213171U CN 201795708 U CN201795708 U CN 201795708U
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Abstract
The utility model discloses an energy-saving heat pipe heat exchanger special for a cheese dying machine, which comprises a heat exchanging chamber, a condensation part and a liquid storage or heat transmission chamber, wherein an air current cover is connected with the top of the condensation part; the condensation part is mainly composed of a plurality of condensation pipes; gaps are reserved among each two adjacent condensation pipes to form air feeding passages communicated with the air current cover; inner spaces of the condensation pipes form condensation chambers; a plurality of rows of fin-shaped heat pipes are arranged in the heat exchanging chamber; the fin-shaped heat pipes are communicated with the condensation chambers and the liquid storage or heat transmission chamber respectively; a hot air discharging passage is arranged on one lateral wall of the heat exchanging chamber; a heat overcurrent pipe is arranged in the liquid storage or heat transmission chamber; and heat conducting media are filled in the liquid storage or heat transmission chamber. The energy-saving heat pipe heat exchanger special for a cheese dying machine has the advantages that through using the heat pipes which have higher heat conducting efficiency as radiating parts, heat conduction coefficient is increased, heat exchanging speed is accelerated, radiating area is increased, heat conducting resistance is reduced and heat conducting performance and efficiency are improved, thereby increasing radiating amount, improving heat exchanging efficiency of the heat exchanger and increasing rate of heat utilization of a cheese drying machine by 15% to 30%.
Description
Technical field
The utility model relates to a kind of oven dry energy-saving heat exchanger, especially relates to a kind of cheese drying machine energy-saving heat exchange of heat pipe.
Background technology
China is weaving and printing and dyeing big country, cheese drying machine is the necessary process equipment of textile printing and dyeing enterprises, be the capital equipment of yarn before weaving through needing after dyeing to dewater/dry, the device that it mainly utilizes the air after the heating that the line yarn before weaving is carried out drying and arrangement and makes it to keep fibrous elasticity and pulling force.
At present, Chang Yong cheese drying machine mainly contains vapor heating type, heat-conducting oil heating type, high frequency electromagnetic radiation hot type cheese drying machine.
Wherein, the cheese drying machine of vapor heating type comprises casing, and casing is formed by the battenboard manufacturing, and using the battenboard purpose mainly is in order to be incubated, to prevent heat leakage.It is three-dimensional square that casing is, and is provided with a heat exchanger on three sides of box inside, be positioned on the trailing flank as main heat exchanger, be positioned on the two sides as supplementary heat exchanger, perhaps only on a medial surface of casing, arrange a main heat exchanger.Above-mentioned main heat exchanger and supplementary heat exchanger are formed by connecting by U type finned tube transverse horizontal, full volume enters high-temperature steam (170～160 ℃ of vapor (steam) temperatures) in the finned tube, high-temperature steam is in flowing through finned tube the time, parent tube heat conduction and the fin heat radiation of the heat content in the steam by finned tube, external air blast is introduced into the finned tube surface of heat exchanger to the outer normal temperature air of casing, by cold and hot exchange the air heat in the Heat Room; For the cheese drying machine that is provided with heat exchanger on three sides of casing, the top of the supplementary heat exchanger of both sides is provided with hot-air high pressure flow-disturbing blower fan, purpose is that the hot-air in the casing is disturbed, the air themperature temperature difference of different layers in the casing is dwindled, it is even to reach temperature, absorb line yarn built-in moisture to greatest extent, allow the line yarn carry out drying under the effect of balance hot-air, the damp-heat air that contains moisture is then discharged naturally from the used heat moisture outlet at casing top.
The structure of the structure of the cheese drying machine of second kind of heat-conducting oil heating type and the cheese drying machine of vapor heating type is basic identical, and the thermal source of different the is cheese drying machine of heat-conducting oil heating type is the conduction oil of heat conducting oil boiler heating.
The cheese drying machine of the third high frequency electromagnetic radiation hot type comprises casing, casing is horizontal type (about about 8.8 meters of length, high about 2.2 meters, 2.0 meters of width, by 1.2 meters of yarn spatial altitudes), what adopt in the process of the online yarn oven dry of this cheese drying machine is the high voltage input, produce high-frequency microwave concussion magnetic field, obtain the electromagnetic wave of different frequency, eject when changing with the inner particulate friction of motion of electromagnetic wave state, and with fixed rate, wavelength, frequency converts electric energy to heat energy, the magnetic wave heat radiation to the line yarn, is reached cold and hot exchange, make the moisture heat absorption in the line yarn, the big expansion vaporization of molecular change is evaporated, and reaches the purpose of drying line yarn; Simultaneously, in order to reduce airborne humid enthalpy in the casing, the humid enthalpy in the air particles is discharged from casing, in casing, introduce outdoor normal temperature air with external air blast, with forced draft thrust the enthalpy of mixing humid air in the casing is discharged, keep the air themperature in the casing.
All there is the low shortcoming of heat energy utilization rate in the oven dry heating system of above-mentioned three types cheese drying machine, generally have only 15～7%, a large amount of heats is that the used heat moisture outlet along with cheese drying machine is discharged in the atmosphere, so not only waste the valuable energy, and caused serious environmental pollution (thermal pollution); On the other hand, especially in operation period of low temperature season, the temperature of outdoor air is bigger than low humidity, cold is more, the workshop air themperature heats the time when low longer, when the cabinet air inlet of cheese drying machine was introduced outdoor cold air, the temperature in the cabinet can decline to a great extent, and had so more increased the heat time heating time and the energy consumption (power consumption) of oven dry heating system.
In addition, the heat utilization efficiency of high-frequency electrical hot type cheese drying machine higher though (electric energy converts the efficient height of heat energy to), but power consumption is bigger, electric rate is higher, and (electricity is supplied with by the power plant, the power plant consumes a large amount of fire coals, and the actual emission of carbon dioxide does not reduce), when the condition of specific output power, because the influence of ambient air temperature, it is big to form the cold and hot exchange temperature difference; Simultaneously, increased the cold wind throughput in the cabinet of cheese drying machine, though discharged water smoke vapour, also taken the heat content in the mixing air away, under the state of isovector, prolonged conduction time, (especially low ambient temperature season) increased power consumption, more increased product oven dry in the cabinet with heat and time.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of heat utilization efficiency that can effectively improve cheese drying machine, reduces Fuel Consumption, and the cheese drying machine energy-saving heat exchange of heat pipe of long service life.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of cheese drying machine energy-saving heat exchange of heat pipe, comprise Heat Room, condensate component that is connected with the top of described Heat Room and the liquid storage/heat transfer chamber that is connected with the bottom of described Heat Room, the top of described condensate component is connected with the distinguished and admirable cover that is used to import cold wind, described condensate component mainly is made up of some parallel condenser pipes side by side, gap between adjacent two described condenser pipes constitutes the air intake passage that is connected with described distinguished and admirable cover, the space constitutes condensation chamber in the pipe of described condenser pipe, be provided with the finned heat pipe of plurality of rows in the described Heat Room, the top of the described finned heat pipe of every row is connected with a described condenser pipe, the bottom of the described finned heat pipe of every row is connected with described liquid storage/heat transfer chamber, described finned heat pipe is connected with described condensation chamber and described liquid storage/heat transfer chamber respectively, one sidewall of described Heat Room is provided with the hot blast passing away, be provided with hot flow tube in described liquid storage/heat transfer chamber, one end of described hot flow tube is connected by the heating plant of heat supply pipeline with the outside, the other end of described hot flow tube is connected by the heat reclamation device of recuperation of heat pipeline with the outside, be filled with heat-conducting medium in described liquid storage/heat transfer chamber, described heat-conducting medium is positioned at outside the described hot flow tube.
Described hot blast passing away is near the bottom of the sidewall of the described Heat Room at its place.
Described Heat Room is connected with described liquid storage/heat transfer chamber by orifice plate, and described orifice plate is provided with several lower through-holes, and described finned heat pipe is connected with described liquid storage/heat transfer chamber by described lower through-hole.
Described finned heat pipe adopts good bimetallic copper aluminum composite material, clad steel aluminium composite material, the monometallic steel material of heat conductivility to make.
Described distinguished and admirable cover is the distinguished and admirable cover of bucket type, and the wide end of the distinguished and admirable cover of described bucket type is connected with the top of described condensate component, and the narrow end of the distinguished and admirable cover of described bucket type is connected by the air blast of airduct with the outside.
Four side outer walls of described Heat Room are provided with heat-insulation layer.
Compared with prior art, advantage of the present utility model is:
1), the utility model adopts the higher heat pipe (finned) of heat transfer efficiency as radiating element, can improve thermal conductivity factor, accelerate heat transfer rate, increase area of dissipation, reduce thermal conduction resistance, increased thermal conductivity energy and efficient, thus heat dissipation capacity can be increased, improve the heat exchange efficiency of this heat exchanger, improve the heat utilization efficiency (30～15%) of cheese drying machine, when adopting steam as thermal source, can effectively reduce the inflow-rate of water turbine of steam in hot flow tube, can reduce steam consumption; When adopting conduction oil as thermal source, the inflow-rate of water turbine of conduction oil can be reduced equally, thereby heat conducting oil boiler flame combustion temperature can be reduced, reduce the consumption of fuel, reduce exhaust gas temperature.
2), because the heat pipe (finned) in this heat exchanger is positioned at Heat Room, and isolated, so can avoid heat pipe (finned) oxide etch by fluid reservoir/heat transfer chamber and thermal source, can effectively prolong the service life of this heat exchanger.
3), because the operating temperature point low (30 ℃) of inorganic heat-conducting medium, Evaporating Heat Transfer is fast, therefore adopt the radiating element of finned tube as heat pipe, heat of vaporization after the vaporization of inorganic heat-conducting medium can make that heat pipe (finned) heat temperature raising speed is fast, the heat transfer time is short, because heat pipe itself has characteristics such as good heat transfer/thermal conduction characteristic, cold air will dwindle layer temperature when heating like this, reduces the temperature difference, homogeneous heating.
4), this heat exchanger is when operation, inside is under negative pressure/minute-pressure state all the time, having guaranteed does not have air drag in liquid storage/heat transfer chamber, in heat conducting process, improved the speed of conducting heat like this, reduced the resistance coefficient of the tube wall of heat pipe (finned) simultaneously along journey, reduced the temperature difference (cold air and hot-air) of the inside and outside heat exchange of tube wall of heat pipe (finned),, improved the thermal efficiency to greatest extent because the isothermal of heat pipe is good.
5), when this heat exchanger uses as monomeric form, can directly in the hot flow tube of liquid storage/heat transfer chamber, electric heating tube be set, with the heat source body of electric heating tube as heating, electric heating tube is opened the tube wall heat transfer of back by hot flow tube, allow hot flow tube heat the outer inorganic heat-conducting medium of tube wall, the heat of vaporization that inorganic heat-conducting medium is heated after vaporizing can make heat pipe (finned) heat temperature raising speed fast, the heat transfer time is short, use the cheese drying machine of this heat exchanger to compare with existing high-frequency electrical hot type cheese drying machine, not only heat utilization efficiency is greatly improved, and effectively reduces power consumption.
Description of drawings
Fig. 1 is a section schematic views one of the present utility model;
Fig. 2 is a section schematic views two of the present utility model;
Fig. 3 is the vertical view behind the utility model the removes distinguished and admirable cover;
Fig. 4 be among Fig. 2 A-A to cross-sectional schematic.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Cheese drying machine energy-saving heat pipe (finned) heat exchanger that the utility model proposes, as shown in the figure, it comprises Heat Room 1, condensate component 2 that is connected with the top of Heat Room 1 and the liquid storage/heat transfer chamber 3 that is connected with the bottom of Heat Room 1, the top of condensate component 2 is connected with the distinguished and admirable cover 4 that is used to import cold wind, condensate component 2 mainly is made up of some parallel condenser pipes 21 side by side, gap between adjacent two condenser pipes 21 constitutes the air intake passage 22 that is connected with distinguished and admirable cover 4, condenser pipe 21 sealed at both ends, and the space constitutes condensation chamber 23 in the pipe of condenser pipe 21, be provided with the finned heat pipe of plurality of rows in the Heat Room 1, the top of each finned heat pipe 11 of the finned heat pipe of every row is connected with a condenser pipe 21 jointly, the bottom of each finned heat pipe 11 of the finned heat pipe of every row all is connected with liquid storage/heat transfer chamber 3, finned heat pipe 11 is connected with condensation chamber 23 and liquid storage/heat transfer chamber 3 respectively, one sidewall of Heat Room 1 is provided with hot blast passing away 12, be provided with hot flow tube 31 in liquid storage/heat transfer chamber 3, one end of hot flow tube 31 is connected by the heating plant (not shown) of heat supply pipeline (not shown) with the outside, the other end of hot flow tube 31 is connected by the heat reclamation device (not shown) of recuperation of heat pipeline (not shown) with the outside, be filled with the inorganic heat-conducting medium 32 of conduct heat fast (30 ℃) in liquid storage/heat transfer chamber 3, inorganic heat-conducting medium 32 is positioned at outside the hot flow tube 31.At this, on four side outer walls of Heat Room 1, heat-insulation layer is set for improving heat exchange efficiency better, on four side outer walls of liquid storage/heat transfer chamber 3 and bottom, heat-insulation layer is set all, heat-insulation layer adopts existing insulation material to make; The pipe that condenser pipe 21 can adopt the steel material to make, the also pipe that can adopt other metal materials to make; In actual design process, many condenser pipes can be linked into an integrated entity by tube connector, as shown in Figure 3 and Figure 4, first end of first condenser pipe is connected by tube connector with first end of second condenser pipe, second end of second condenser pipe is connected by tube connector with second end of the 3rd condenser pipe, constitutes one.
In this specific embodiment, hot blast passing away 12 should be tried one's best near the bottom setting of the sidewall of the Heat Room 1 at its place, the air after fully heating can be discharged from hot blast passing away 12 like this, be connected with hot blast discharge pipe 13 on the hot blast passing away 12.At this, hot blast passing away 12 can be arranged on the sidewall of Heat Room 1 length direction, simultaneously can be with hot flow tube 31 along the 3 length direction settings of liquid storage/heat transfer chamber, even the axis of hot flow tube 31 and Heat Room 1 are provided with the parallel sidewalls of hot blast passing away 12, can make the thermal source that flows through hot flow tube 31 fully heat inorganic heat-conducting medium 32 like this, thereby make the heat of vaporization after inorganic heat-conducting medium 32 vaporizations heat heat pipe (finned) 11 rapidly.
In this specific embodiment, Heat Room 1 is connected with liquid storage/heat transfer chamber 3 by orifice plate 5, and orifice plate 5 is provided with several lower through-holes 51, and finned heat pipe 11 is connected with liquid storage/heat transfer chamber 3 by lower through-hole 51.At this, orifice plate 5 is made by steel plate, not only as the base plate of Heat Room 1 but also as the top board of liquid storage/heat transfer chamber 3.
In this specific embodiment, finned heat pipe 11 adopts good bimetallic copper aluminum composite material, clad steel aluminium composite material, the monometallic steel material of heat conductivility to make.Adopt higher heat pipe (finned) 11 of heat transfer efficiency as radiating element, can improve thermal conductivity factor, increase area of dissipation, reduce thermal conduction resistance, increased thermal conductivity energy and efficient, thus increased heat dissipation capacity, improve the heat exchange efficiency of this heat exchanger, reduced the consumption of steam/conduction oil; Can greatly reduce simultaneously the manufacturing cost of this heat exchanger.On the other hand, because the operating temperature point lower (30 ℃) of inorganic heat-conducting medium 32, adopted heat pipe (finned) 11 that bimetallic copper aluminum composite material, clad steel aluminium composite material, monometallic steel material make as radiating element again, can make that heat pipe (finned) 11 heat temperature raising speed are fast, the heat transfer time short, because heat pipe (finned) 11 itself has characteristics such as good heat transfer/thermal conduction characteristic, cold air will dwindle layer temperature when heating like this, reduces the temperature difference, homogeneous heating.
At this, what fill in liquid storage/heat transfer chamber 3 is inorganic heat-conducting medium 32, because inorganic heat-conducting medium 32 has the characteristic that boiling point is low, heat enthalpy value is high, its evaporation point is low, it is fast to conduct heat, and its coefficient of conductivity surpasses any fluid carrier, and inorganic heat-conducting medium 32 adopts existing technology.
In this specific embodiment, distinguished and admirable cover 4 is the distinguished and admirable cover of bucket type, and the wide end of the distinguished and admirable cover 4 of bucket type is connected with the top of condensate component 2, and the narrow end of the distinguished and admirable cover 4 of bucket type is connected by the air blast (not shown) of airduct (not shown) with the outside.In the actual design process, as shown in Figure 3 and Figure 4, can do to connect a fixing base 6 around as a whole at parallel condenser pipe side by side, this fixing base 6 be connected with four sidewalls of Heat Room 1 and the wide end of the distinguished and admirable cover 4 of bucket type respectively.
At this, be between the connector of each parts in this heat exchanger and be tightly connected, can adopt welded seal, reach the purpose that good, the no air of air-tightness leaks.
The operation principle of this heat exchanger is: open the air blast that is arranged on the cheese drying machine, outside heating plant and outside heat reclamation device, after the heating plant of outside provides the high temperature fluid heating agent by heat supply pipeline thermotropism flow tube, the high temperature fluid heating agent that flows through hot flow tube heats the inorganic heat-conducting medium in liquid storage/heat transfer chamber, inorganic heat-conducting medium heat absorption back phase transformation rapidly, vaporization produces high-temperature evaporation heat, high-temperature evaporation heat enters in the heat pipe (finned) by lower through-hole, the tube wall temperature of heat pipe this moment (finned) rises, Gao Shike reaches 200～80 ℃ (the actual temp value is decided according to outside heat medium temperature), the tube wall of heat pipe (finned) and the surface temperature of fin are waiting circulating heat conduction under the temperature state, heat radiation, air blast is sent into outdoor cold air in the Heat Room by distinguished and admirable cover of bucket type and air intake passage, by cold and hot exchange, produce high-temperature hot air, high-temperature hot air is by the dress charka air inlet hot wind supply of hot blast discharge pipe in the cabinet of cheese drying machine, high-temperature hot air absorbs the moisture that contains in the interior yarn of oven dry cabinet, to reach the purpose of oven dry yarn.Liquid storage/heat transfer chamber is essentially a fluid reservoir that is filled with inorganic heat-conducting medium under static state, inorganic heat-conducting medium is heated and heats up that this fluid reservoir is essentially a heat transfer/heat release chamber after the vaporization, diabatic process is to carry out under negative pressure/minute-pressure state, comes down to the heat-exchange system of a negative pressure/minute-pressure in this liquid storage/heat transfer chamber and the whole heat pipe (finned).
This heat exchanger is when operation, inside is under negative pressure/minute-pressure state all the time, there is not air drag, in heat conducting process, improved the speed of conducting heat like this, reduced the resistance coefficient of the tube wall of heat pipe (finned) simultaneously along journey, reduce the temperature difference (cold air and hot-air) of the inside and outside heat exchange of tube wall of heat pipe (finned), improved the thermal efficiency to greatest extent.Simultaneously because this heat exchanger is in negative pressure/minute-pressure state all the time when operation.Therefore, fill inorganic heat-conducting medium in liquid storage/heat transfer chamber can not occur pressure excessive/phenomenon of oxide etch.
In actual design process, also can be according to actual conditions, not with the heating plant supplying high temperature fluid heating agent of outside, during monomeric form, can heat with the heat source body of electric heating tube as heating, can in hot flow tube electric heating tube be installed, electric heating tube is opened the tube wall heat transfer of back by hot flow tube, allows hot flow tube heat the outer inorganic heat-conducting medium of tube wall.
Heat exchange of heat pipe of the present utility model can with supporting the installing and using of various cheese drying machines of domestic and international manufacturer production (identical heat dissipation capacity, identical area of dissipation, identical size).
Claims (6)
1. cheese drying machine energy-saving heat exchange of heat pipe, it is characterized in that comprising Heat Room, condensate component that is connected with the top of described Heat Room and the liquid storage/heat transfer chamber that is connected with the bottom of described Heat Room, the top of described condensate component is connected with the distinguished and admirable cover that is used to import cold wind, described condensate component mainly is made up of some parallel condenser pipes side by side, gap between adjacent two described condenser pipes constitutes the air intake passage that is connected with described distinguished and admirable cover, the space constitutes condensation chamber in the pipe of described condenser pipe, be provided with the finned heat pipe of plurality of rows in the described Heat Room, the top of the described finned heat pipe of every row is connected with a described condenser pipe, the bottom of the described finned heat pipe of every row is connected with described liquid storage/heat transfer chamber, described finned heat pipe is connected with described condensation chamber and described liquid storage/heat transfer chamber respectively, one sidewall of described Heat Room is provided with the hot blast passing away, be provided with hot flow tube in described liquid storage/heat transfer chamber, one end of described hot flow tube is connected by the heating plant of heat supply pipeline with the outside, the other end of described hot flow tube is connected by the heat reclamation device of recuperation of heat pipeline with the outside, be filled with heat-conducting medium in described liquid storage/heat transfer chamber, described heat-conducting medium is positioned at outside the described hot flow tube.
2. a kind of cheese drying machine energy-saving heat exchange of heat pipe according to claim 1 is characterized in that the bottom of described hot blast passing away near the sidewall of the described Heat Room at its place.
3. a kind of cheese drying machine energy-saving heat exchange of heat pipe according to claim 1 and 2, it is characterized in that described Heat Room is connected with described liquid storage/heat transfer chamber by orifice plate, described orifice plate is provided with several lower through-holes, and described finned heat pipe is connected with described liquid storage/heat transfer chamber by described lower through-hole.
4. a kind of cheese drying machine energy-saving heat exchange of heat pipe according to claim 3 is characterized in that described finned heat pipe adopts good bimetallic copper aluminum composite material, clad steel aluminium composite material, the monometallic steel material of heat conductivility to make.
5. a kind of cheese drying machine energy-saving heat exchange of heat pipe according to claim 4, it is characterized in that described distinguished and admirable cover is the distinguished and admirable cover of bucket type, the wide end of the distinguished and admirable cover of described bucket type is connected with the top of described condensate component, and the narrow end of the distinguished and admirable cover of described bucket type is connected by the air blast of airduct with the outside.
6. a kind of cheese drying machine energy-saving heat exchange of heat pipe according to claim 3 is characterized in that four side outer walls of described Heat Room are provided with heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020213171XU CN201795708U (en) | 2010-06-01 | 2010-06-01 | Energy-saving heat pipe heat exchanger special for cheese dying machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020213171XU CN201795708U (en) | 2010-06-01 | 2010-06-01 | Energy-saving heat pipe heat exchanger special for cheese dying machine |
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| Publication Number | Publication Date |
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| CN201795708U true CN201795708U (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201020213171XU Expired - Fee Related CN201795708U (en) | 2010-06-01 | 2010-06-01 | Energy-saving heat pipe heat exchanger special for cheese dying machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839513A (en) * | 2011-06-23 | 2012-12-26 | 宁波福威克节能工业技术有限公司 | Heat pipe-type heating apparatus |
| CN105202900A (en) * | 2015-11-09 | 2015-12-30 | 海安县联发染纱有限公司 | Cheese drying machine |
-
2010
- 2010-06-01 CN CN201020213171XU patent/CN201795708U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839513A (en) * | 2011-06-23 | 2012-12-26 | 宁波福威克节能工业技术有限公司 | Heat pipe-type heating apparatus |
| CN102839513B (en) * | 2011-06-23 | 2014-07-16 | 宁波福威克节能工业技术有限公司 | Heat pipe-type heating apparatus |
| CN105202900A (en) * | 2015-11-09 | 2015-12-30 | 海安县联发染纱有限公司 | Cheese drying machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20170601 |