CN2142302Y - Chafing dish of heat storage - Google Patents
Chafing dish of heat storage Download PDFInfo
- Publication number
- CN2142302Y CN2142302Y CN 92234742 CN92234742U CN2142302Y CN 2142302 Y CN2142302 Y CN 2142302Y CN 92234742 CN92234742 CN 92234742 CN 92234742 U CN92234742 U CN 92234742U CN 2142302 Y CN2142302 Y CN 2142302Y
- Authority
- CN
- China
- Prior art keywords
- chafing dish
- thermal insulation
- heat storage
- energy storage
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a chafing dish of wireless heat storage, mainly comprising a double-layer thermal insulation energy storage cabinet, an electric heater, a heat exchanging and transferring plate, a heat-insulating layer, a thermal insulation cover, a temperature controller, a casing, etc. The double-layer thermal insulation energy storage cabinet is formed by adopting the power of the perlite compressed in vacuum, the double-layer thermal insulation energy storage cabinet whose shape is like the inner container of a thermos bottle is arranged at the centre of the chafing dish, and the upper end is tightly connected with the heat exchanging and transferring plate in one. Owing to applying the technology of high energy storage and thermal insulation and utilizing the energy effectively and reasonably, the thermal efficiency of the chafing dish of wireless heat storage is high and reaches more than 90%. Compared with common electric heating discs and common electrical chafing dishes, the chafing dish of wireless heat storage can save 25-38% energy (electricity). When the chafing dish of wireless heat storage is used, the power supply line does not need to be inserted all the time. The chafing dish of wireless heat storage has the advantages of energy saving and no pollution.
Description
The utility model relates to a kind of household electrical appliance, particularly a kind of wireless Chafing dish of heat storage.
Existing electric chafing dish (also being electric hot tray) partly is made up of heating disks in pyrolysis plant, heating, supply socket etc., in use, need electric hot tray is connected with the mains always, the pot body is placed on the heating disks in pyrolysis plant, it is convenient inadequately to use, and the thermal efficiency of electric heating has only 70%; The oil liquefied gas chafing dish can bring air pollution, and Chinese patent application numbers 90108359.3 discloses a kind of efficient electric heat tray, has maintaining serving tray, electric chafing dish, three kinds of functions of electronics watt pot, but when the sparking pot, line need plug in.
The purpose of this utility model just provides a kind of simple in structure, during use, and need be with the wireless Chafing dish of heat storage of power line.
The utility model is by double thermal insulation energy storage cabinet, and electric heater exchanges heat transfer plate, and thermal insulating warm-keeping layer, insulation cover, attemperating unit and shell are formed.Electric heater adopts Fe-Cr-Al wire and combined oxidation magnesium powder to make, and uses 1200 ℃ of its work maximum temperatures, 3000 hours working times in melted alloy.Double thermal insulation energy storage cabinet is located at the central authorities of chafing dish, shape such as vacuum flask inner bag, its internal layer is heat insulation vacuum layer, be filled with the crushed crude pearlite of compression, skin is to adopt C one red line compound heat insulating material far away, electric heater is fixed on the bottom of double thermal insulation energy storage cabinet, and the double thermal insulation energy storage is cashier's office in a shop held and is exchanged heat transfer plate and tightly holds in the mouth and connect one.The exchange heat transfer plate is to be made by carbon steel, and it is to regulate the key position that heat is distributed.Between double thermal insulation energy storage cabinet and exchange heat transfer plate, be that thermal capacitance is big and phase transformation potential big, the alusil alloy of good heat-transfer, liquid that can not outflowed when both protected the not oxidized and phase transformation of alusil alloy, and played the adiabatic heat-insulation effect.Between double thermal insulation energy storage cabinet and shell, be filled with the thermal insulating warm-keeping layer that heat-insulating materials such as alumina silicate fibre, rock wool and crushed crude pearlite are made, the heat-insulating shield that also has a circle to make around double thermal insulation energy storage cabinet in the upper end of chafing dish with alumina silicate and coating, the outer wall of double thermal insulation energy storage cabinet also is provided with a positive temperature coefficient thermistor, is connected with electrical equipment box on the fixed housing.
Operating circuit of the present utility model is after adopting electric heater and indicator lamp being in parallel, connect with buzzer, be composed in series article one branch road, be composed in series the second branch road by K switch 2 and positive temperature coefficient thermistor by K switch 1 and temperature controller, article two, after the branch road parallel connection, be connected on the mains supply.
The utility model is owing to adopted the energy storage density height and the big alloy of thermal capacitance, vaccum thermal insulation technique and high temperature resistant heat-insulating material have been adopted simultaneously again, utilized energy effective and reasonablely, make and the utlity model has that insulation is strong, thermal capacitance big, it is fast to conduct heat, the thermal efficiency is up to more than 90%, than general electric hot tray, electric chafing dish energy-conservation () 25-38%.When chafing dish uses, save the trouble of the line that always plugs in.
Below in conjunction with accompanying drawing (embodiment), the utility model will be further described.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the utility model working circuit diagram.
Consult Fig. 1, a most preferred embodiment of the present utility model.Make the double thermal insulation energy storage cabinet 6 of shape such as vacuum flask inner bag with slim carbon steel, adopt mechanical exhaust, making its internal layer is heat insulation vacuum layer, and vacuum reaches 10
-2More than the holder, skin is to adopt C one red line composite far away.Bottom eccentric part at double thermal insulation energy storage cabinet 6 has two apertures, between the ectonexine of energy storage cabinet on aperture position with the welding of the iron pipe of two equal in length, the pin of electric heater 5 stretches out outside the aperture, and the pin of electric heater 5 connects power supply, adopts copper, the aluminium lead-in wire as temperature and power supply.Exchange heat transfer plate 4 is arranged on double thermal insulation energy storage cabinet 6; it makes flat round shape with carbon steel; be placed with a certain amount of alusil alloy between it and the double thermal insulation energy storage cabinet 6; adopt butt welding to seal between the two; make between the two tightly that rank connects one, liquid that can not outflow during the not oxidized and metal phase change of protection alusil alloy.Shell 1 is to make peviform with sheet iron, and outer surface is printed on some patterns.There are electrical equipment box 8 and a pair of handle 13 in first position of shell 1, and electrical equipment box 8 and handle 13 are all made with resin, and indicator lamp 9, buzzer 10, K switch 1, K2, temperature controller 12 and positive temperature coefficient thermistor 11 are housed in the electrical equipment box 8.Between shell 1 and the double thermal insulation energy storage cabinet 6, be filled with the low alumina silicate fibre of thermal conductivity factor 2, play the heat-insulation and heat-preservation effect.The heat-insulating shield 7 of the circle of one hollow is arranged at the top of shell 1.The shell of insulation cover 3 is sheet irons, and internal layer is an alumina silicate fibre 2.The utility model overall weight 6.8KG.
During use, connect with the mains, close a switch K1 or K2, electric heater (5) directly heats alusil alloy, temperature rises to about 602 ℃-680 ℃ of phase transformation fusing points, need 35-60 minute approximately, temperature controller (12) is auto power off just, covers insulation cover (3) then, can be at any time for the sparking pot, use after 1.5-2 hour, temperature still has about 300 ℃, is suitable for slow fire and simmers soup, cooks congee or insulation etc.
Consult Fig. 2, circuit working process of the present utility model is as follows: connect mains supply, and the K1 that closes, electric current arrives electric heater 5 by temperature controller 12, buzzer 10, at this moment, indicator lamp 9 is shinny, when double-deck energy storage cabinet 6 arrives predetermined temperature, electric current is cut off in temperature controller 12 tripping operations, buzzer 10 ring piccolos.Equipotential during buzzer 10 energisings; The outage back produces potential difference, starts buzzer 10.When temperature controller 12 breaks down, indicator lamp 9 does not work, and enables K2, and to electric heater 5, at this moment, indicator lamp 9 is shinny through positive temperature coefficient thermistor 11, buzzer 10 for electric current.K1 and K2 are mutual lockings, and temperature controller 12 can be with bimetal leaf or controllable silicon.When double thermal insulation energy storage cabinet 6 arrived predetermined temperature, positive temperature coefficient thermistor 11 just in time reached Curie temperature, produced high-impedance state, cut off electric current, buzzer 10 ring piccolos.If two control circuits are out of control, double thermal insulation energy storage cabinet 6 overtemperatures make buzzer 10 expanding metal switches, buzzer 10 direct-furnish electric currents, and the ring flute takes out attaching plug.
Embodiment:
An electrical heating power is the wireless chafing dish of 1.1KW, and chafing dish seasoning is: 4 kilograms in bag arteries and veins, and 0.8 kilogram of fillet, 0.8 kilogram in beef, assorted 0.8 kilogram of liver, 0.6 kilogram in bean vermicelli can be edible for 8 people.Under the same conditions, compare with the red heart board 1.2KW electric chafing dish that Shanghai produces, the firepower of wireless chafing dish is violent, after using 1.5 hours, and red heart board electric chafing dish power consumption 1.8 degree, wireless chafing dish power consumption 1.1 degree.After the sparking pot finished, about 300 ℃ of wireless chafing dish temperature still can be used to insulation, stewing soup etc. 40-60 minute.
Claims (3)
1, a kind of wireless Chafing dish of heat storage, form by shell (1), insulation cover (3), thermal insulating warm-keeping layer (2), electric heater (5) and electrical equipment box (8), it is characterized in that double thermal insulation energy storage cabinet (6) is located at the central authorities of chafing dish, shape such as vacuum flask inner bag, upper end are tightly held in the mouth with exchange heat transfer plate (4) and are connected as a single entity.
2, according to the described wireless Chafing dish of heat storage of claim 1, it is characterized in that described double thermal insulation energy storage cabinet (6) internal layer is a vacuum heat-insulating layer, be filled with the crushed crude pearlite of compression, skin is to adopt C one red line compound heat insulating material far away.
3,, it is characterized in that electric heater (5) is to adopt Fe-Cr-Al wire and combined oxidation magnesium powder to make according to the described wireless Chafing dish of heat storage of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92234742 CN2142302Y (en) | 1992-10-03 | 1992-10-03 | Chafing dish of heat storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92234742 CN2142302Y (en) | 1992-10-03 | 1992-10-03 | Chafing dish of heat storage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2142302Y true CN2142302Y (en) | 1993-09-22 |
Family
ID=33776716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92234742 Expired - Fee Related CN2142302Y (en) | 1992-10-03 | 1992-10-03 | Chafing dish of heat storage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2142302Y (en) |
-
1992
- 1992-10-03 CN CN 92234742 patent/CN2142302Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |