CN113068998A - Condensation recovery system of steam cooking equipment - Google Patents
Condensation recovery system of steam cooking equipment Download PDFInfo
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- CN113068998A CN113068998A CN202110430335.7A CN202110430335A CN113068998A CN 113068998 A CN113068998 A CN 113068998A CN 202110430335 A CN202110430335 A CN 202110430335A CN 113068998 A CN113068998 A CN 113068998A
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- 238000009833 condensation Methods 0.000 title claims abstract description 185
- 230000005494 condensation Effects 0.000 title claims abstract description 185
- 238000010411 cooking Methods 0.000 title claims abstract description 86
- 238000011084 recovery Methods 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 276
- 230000017525 heat dissipation Effects 0.000 claims abstract description 40
- 239000002699 waste material Substances 0.000 claims abstract description 26
- 230000005855 radiation Effects 0.000 claims abstract description 22
- 238000005086 pumping Methods 0.000 claims description 51
- 238000001816 cooling Methods 0.000 claims description 24
- 238000004064 recycling Methods 0.000 claims description 22
- 238000001704 evaporation Methods 0.000 claims description 16
- 230000008020 evaporation Effects 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims 1
- 238000004781 supercooling Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/38—Parts, details or accessories of cooking-vessels for withdrawing or condensing cooking vapors from cooking utensils
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
The invention discloses a condensation recovery system of steam cooking equipment. The system comprises a steam generator for delivering high-temperature steam into the cooking cavity, a condenser for condensing high-temperature waste steam from the cooking cavity, and a condensation steam exhaust assembly for exhausting low-temperature waste steam condensed by the condenser to a negative pressure area of a heat dissipation fan; the heat radiation fan is arranged at the air inlet of the air duct, and the condensation steam exhaust assembly is provided with a condensation steam exhaust cavity; the steam outlet end of the condenser is communicated with the condensing steam exhaust cavity; the steam outlet end of the condensation steam exhaust component faces towards the negative pressure region of the heat radiation fan and is used for condensing through a condenser, low-temperature waste steam entering the condensation steam exhaust cavity flows into the steam cooking equipment through the air channel exhaust steam, and condensed water generated by condensation in the condensation steam exhaust cavity flows into the steam generator through a water return port at the bottom of the steam generator. The invention can effectively solve the problems of large front exhaust volume, high temperature and short one-time water adding service time of the water tank of the existing steam cooking equipment.
Description
Technical Field
The invention belongs to the technical field of steam cooking equipment, and particularly relates to a condensation recovery system of steam cooking equipment.
Background
Steam cooking equipment, for example steam oven etc. in the use, steam that steam generator produced gets into the cavity and accomplishes the heat exchange with the edible material after, can be directly discharged the cavity by cooling system through the wind channel, and the front is generally discharged in current product design, and the temperature of gas outlet can reach 70 ℃ or even higher when steam volume is great, and user experience is relatively poor. In addition, because the steam is discharged out of the cavity after only once heat exchange with food, the volume of the water tank of the existing product is generally 1.2-1.4L, so that once water adding can only maintain the continuous work of the machine for 40-50 min, and if long-time cooking is carried out, water adding is needed midway.
Disclosure of Invention
The invention provides a condensation recovery system of steam cooking equipment, aiming at solving the problems that the front exhaust volume of the existing steam cooking equipment is large, the temperature is high, and the service time of one-time water adding of a water tank is short.
The invention is realized by adopting the following scheme:
the invention provides a condensation recovery system of steam cooking equipment, which comprises a steam generator, a condenser and a condensation steam exhaust assembly, wherein the steam generator is used for conveying high-temperature steam into a cooking cavity;
the bottom of the steam generator is arranged at the water return port, the heat dissipation fan is arranged at the air inlet of the air channel, and the condensation steam exhaust component is provided with a condensation steam exhaust cavity; the steam outlet end of the condenser is communicated with the condensing steam exhaust cavity; the steam outlet end of the condensation steam exhaust component faces towards the negative pressure region of the heat dissipation fan is used for passing through the condenser for condensation and entering the low-temperature waste steam in the condensation steam exhaust cavity passes through the air channel steam exhaust cooking equipment, and the condensed water generated by condensation in the condensation steam exhaust cavity flows into the steam generator through the water return port.
Furthermore, one path of water outlet channel of the water box is communicated with the steam generator through the condenser and is used for sequentially conveying cold water to the condenser and the steam generator; and the other water outlet channel of the water box is communicated with the steam generator and is used for recovering the residual water in the steam generator.
Furthermore, the condensation steam exhaust assembly comprises a steam inlet, a steam exhaust port and a water outlet which are communicated with the condensation steam exhaust cavity; the steam inlet is communicated with the steam outlet end of the condenser, and the steam outlet is arranged towards the negative pressure area of the heat radiation fan; the water outlet is also communicated with the evaporation chamber of the steam generator.
Furthermore, the condensation steam exhaust assembly further comprises a first shell and a first cover body, wherein a groove is axially formed in the side wall of the first shell, the first cover body is covered on the first shell to form the condensation steam exhaust cavity, and the first cover body and the groove form the steam exhaust port.
Further, the condenser comprises a shell assembly with a condensation cavity and a cooling assembly;
the shell component is provided with a steam inlet flow channel, a steam outlet flow channel, a water inlet flow channel and a water outlet flow channel which are communicated with the condensation cavity;
the steam inlet flow channel is communicated with the cooking cavity, the steam outlet flow channel is communicated with the condensation steam exhaust cavity of the condensation steam exhaust assembly, the water inlet flow channel is communicated with the water box, and the water outlet flow channel is communicated with the steam generator; the cooling assembly is arranged outside the condensation cavity and used for cooling the shell assembly.
Furthermore, the condenser also comprises a three-way pipe, a first pipeline of the three-way pipe is communicated with the condensation cavity, a second pipeline is communicated with the cooking cavity to form the steam inlet flow channel, and a third pipeline is communicated with the steam generator to form the water outlet flow channel.
Furthermore, the pipe diameters of the first pipeline and the second pipeline are both larger than the pipe diameter of the third pipeline, the included angle between the first pipeline and the second pipeline is a right angle, and the included angle between the first pipeline and the third pipeline is a straight angle.
Further, the condenser still includes the condensation subassembly, the condensation subassembly is located the condensation intracavity, and with shell assembly is connected and is used for condensing high temperature exhaust steam.
Further, the condenser further comprises a heat dissipation assembly, wherein the heat dissipation assembly is arranged outside the condensation cavity and is connected with the shell assembly to dissipate heat of the heat dissipation assembly.
Furthermore, the shell assembly further comprises a second shell and a second cover body, the second cover body covers the second shell to form the condensation cavity, one side of the second cover body is connected with the condensation assembly, and the other side, far away from the condensation assembly, of the second cover body is connected with the heat dissipation assembly.
Furthermore, a plurality of radiating fins are arranged on the second shell; the plurality of radiating fins are arranged around the second shell at intervals.
Further, the condensing assembly comprises a plurality of condensing sheets; the plurality of condensation sheets are arranged in the condensation cavity at intervals and in parallel to each other to form a narrow steam channel and a wide steam channel which are perpendicular to each other, and the condensation sheets are connected with the shell assembly.
Furthermore, the number of the narrow steam channels and the number of the wide steam channels are multiple, the narrow steam channels are parallel to each other, and the steam flowing direction of each narrow steam channel is parallel to the steam outlet direction of the steam outlet flow channel; a plurality of the wide steam channels are arranged in parallel with each other.
Further, the heat dissipation assembly comprises a heat dissipation plate and a plurality of heat dissipation fins; the radiating fins are arranged on one side of the radiating plate in parallel at intervals to form a wide radiating channel and a narrow radiating channel which are perpendicular to each other, and the other side of the radiating plate, which is far away from the radiating fins, is connected with the shell assembly.
Furthermore, the cooling assembly comprises a cooling fan and a mounting seat; the mounting seat is connected with the condenser, a mounting hole is formed in the mounting seat, and the cooling fan is arranged in the mounting hole.
The steam generator further comprises a water pumping unit group, wherein the water pumping unit group is arranged on the water outlet channel of the water box and at least used for pumping the residual water in the steam generator back to the water box.
Further, the water pumping unit group comprises a first water pumping unit and a second water pumping unit; the first water pumping unit is arranged on one path of water flow channel of the water box communicated with the condenser and is used for pumping cold water in the water box to the condenser; the second water pumping unit is arranged on the other path of water flow channel of the water box communicated with the steam generator and used for pumping the residual water in the steam generator back to the water box.
Compared with the prior art, the invention adopting the scheme has the beneficial effects that:
because the steam outlet end of the condenser is communicated with the condensation steam exhaust cavity of the condensation steam exhaust assembly, the steam outlet of the condensation steam exhaust assembly faces to the negative pressure area of the heat radiation fan, and the heat radiation fan is arranged at the air inlet of the air duct to be exhausted, after the low-temperature waste steam condensed by the condenser enters the condensation steam exhaust cavity of the condensation steam exhaust assembly, the temperature of the condensation steam exhaust cavity and the temperature of the condensation steam exhaust assembly are usually lower than that of the low-temperature waste steam, so that the low-temperature waste steam can be condensed again to generate second condensed water and lower-temperature waste steam when passing through the condensation steam exhaust cavity; the lower temperature waste steam flows to the negative pressure area of the heat dissipation fan from the steam outlet end of the condensation steam exhaust assembly, is mixed with other low temperature air in the negative pressure area and is condensed again to form ultralow temperature waste steam and third condensate water, and the ultralow temperature waste steam enters the air channel and is finally discharged to the steam cooking equipment. This reduces the amount of steam and the temperature of the steam discharged from the front of the cooking apparatus, and solves the problems of the steam cooking apparatus that the amount of the steam discharged from the front is large and the temperature is high. The second comdenstion water is then through in the wet return flows to steam generator, just so increased the utilization time of the single water in the water box to a certain extent, has solved the problem that present steam cooking equipment's water tank once adds water live time short.
Drawings
Fig. 1 is a schematic diagram of a condensation recycling system of a steam cooking apparatus according to an embodiment of the present invention;
fig. 2 is a schematic view of a condensation recycling system of a steam cooking apparatus according to an embodiment of the present invention in a first view;
fig. 3 is a schematic view of a condensation recycling system of a steam cooking apparatus according to an embodiment of the present invention in a second view;
fig. 4 is a schematic structural view of a connection relationship between an air duct, a condensation steam exhaust assembly, a heat radiation fan and a condenser of a condensation recovery system of a steam cooking device according to an embodiment of the present invention, in which a dotted arrow represents a steam flow direction, and a solid arrow represents a water flow direction;
fig. 5 is a schematic structural view showing a connection relationship between a condensing and exhausting assembly, a heat dissipation fan and a condenser of a condensing and recycling system of a steam cooking apparatus according to an embodiment of the present invention, in which a dotted arrow represents a steam flowing direction, and a solid arrow represents a water flowing direction;
fig. 6 is a schematic perspective view of a condensing and steam-discharging assembly of a condensing and recovering system of a steam cooking device according to an embodiment of the present invention, in which a dotted arrow represents a steam flow direction and a solid arrow represents a water flow direction;
fig. 7 is a schematic perspective view of a condensing and steam-discharging assembly of a condensing and recovering system of a steam cooking device according to an embodiment of the present invention, in a second visual sense, wherein a dotted arrow represents a steam flow direction and a solid arrow represents a water flow direction;
FIG. 8 is a schematic cross-sectional view of a condensing steam discharge assembly of the present invention in a first view, wherein the dashed arrows indicate the steam flow direction and the solid arrows indicate the water flow direction;
FIG. 9 is a schematic cross-sectional view of a condensing steam discharge assembly of the present invention in a second view, wherein the dashed arrows indicate the steam flow direction and the solid arrows indicate the water flow direction;
FIG. 10 is a schematic cross-sectional view of a third aspect of the condensing steam extraction assembly of the present invention, wherein the dashed arrows indicate the steam flow direction and the solid arrows indicate the water flow direction;
FIG. 11 is a schematic perspective view of a condenser of the present invention, wherein the dashed arrows indicate the direction of steam flow and the solid arrows indicate the direction of water flow;
FIG. 12 is a schematic illustration of a partial explosion of the condenser of the present invention with the tee removed, the dashed arrows representing the direction of steam flow and the solid arrows representing the direction of water flow;
FIG. 13 is a schematic cross-sectional view of FIG. 12 in one visual sense, with dashed arrows representing steam flow and solid arrows representing water flow;
FIG. 14 is a schematic view of an assembled structure of a housing assembly and a condensing sheet according to the present invention, in which dotted arrows represent a steam flow direction and solid arrows represent a water flow direction;
FIG. 15 is a schematic view of an assembly structure of the second cover and the condensation sheet;
FIG. 16 is a schematic front view of the second cover and the condensation sheet shown in FIG. 15;
FIG. 17 is a left side view of the second cover and the condensation sheet shown in FIG. 15;
fig. 18 is a schematic perspective view of a heat sink assembly;
fig. 19 is a front view of the heat sink assembly shown in fig. 18;
fig. 20 is a left side view of the heat dissipating assembly shown in fig. 18.
In the figure: 1. a condenser; 2. a steam generator; 3. a heat radiation fan; 4. a condensing steam discharging component; 5. an air duct; 6. a water box; 7. a water pumping unit group; 11. a housing assembly; 12. a condensing assembly; 13. a cooling assembly; 14. a heat dissipating component; 15. a three-way pipe; 21. a water return port; 41. a steam inlet; 42. a steam exhaust port; 43. a first housing; 44. a first cover body; 45. a water outlet; 71. a first pumping unit; 72. a second pumping unit; 111. a steam inlet flow passage; 112. a steam outlet flow channel; 113. a water inlet flow channel; 114. a water outlet flow channel; 115. a second housing; 116. a second cover body; 121. a condensation sheet; 131. a heat radiation fan; 132. a mounting seat; 141. a heat dissipation plate; 142. a heat sink; 1151. and (4) radiating fins.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The meaning of "plurality" is two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and can include, for example, fixed connections, detachable connections, or integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 5, the present embodiment provides a condensation recycling system of a steam cooking device, which includes a steam generator 2 for delivering high-temperature steam into a cooking cavity, a condenser 1 for condensing high-temperature waste steam from the cooking cavity, and a condensation steam exhaust assembly 4 for exhausting low-temperature waste steam condensed by the condenser 1 to a negative pressure area of a heat dissipation fan 3;
the bottom of the steam generator 2 is arranged at the water return port 21, the heat radiation fan 3 is arranged at the air inlet of the air duct 5, and the condensation steam exhaust component 4 is provided with a condensation steam exhaust cavity; the steam outlet end of the condenser 1 is communicated with a condensing steam discharging cavity; the steam outlet end of the condensation steam exhaust component 4 is used for condensing the steam passing through the condenser 1 towards the negative pressure area of the heat radiation fan 3, the low-temperature waste steam entering the condensation steam exhaust cavity is discharged from the steam cooking equipment through the air duct 5, and the condensed water generated by condensation in the condensation steam exhaust cavity flows into the steam generator 2 through the water return port.
Because the steam inlet end of the condenser 1 is communicated with the cooking cavity, high-temperature steam in the cooking cavity enters the condenser 1 to exchange heat with the condenser 1 to generate low-temperature waste steam and condensed water.
Because the steam outlet end of the condenser 1 is communicated with the condensation steam exhaust cavity of the condensation steam exhaust component 4, the steam outlet of the condensation steam exhaust component 4 faces the negative pressure area of the heat radiation fan 3, and the heat radiation fan 3 is arranged at the air inlet of the air duct 5 to be exhausted, after the low-temperature waste steam condensed by the condenser 1 enters the condensation steam exhaust cavity of the condensation steam exhaust component 4, because the temperatures of the condensation steam exhaust cavity and the condensation steam exhaust component 4 are usually lower than the temperature of the low-temperature waste steam, the low-temperature waste steam can be condensed again to generate second condensed water and lower-temperature waste steam when passing through the condensation steam exhaust cavity; the lower temperature exhaust steam flows to the negative pressure area of the heat radiation fan 3 from the steam outlet end of the condensation steam exhaust component 4, is mixed with other low temperature air in the negative pressure area and is condensed again to form ultralow temperature exhaust steam and third condensate water, and the ultralow temperature exhaust steam enters the air duct 5 and is finally discharged to the steam cooking equipment. This reduces the amount of steam and the temperature of the steam discharged from the front of the cooking apparatus, and solves the problems of the steam cooking apparatus that the amount of the steam discharged from the front is large and the temperature is high. And the third condensate water is dripped on the cooling fan 3 to play a role in cooling the cooling fan 3. The second comdenstion water then flows into steam generator 2 in through the wet return, just so increased the utilization time of the single water in the water box to a certain extent, has solved the problem that present steam cooking equipment's water tank once adds water live time short.
In the embodiment, in order to further increase the utilization time of the single water in the water box, one water outlet channel of the water box 6 is communicated with the steam generator 2 through the condenser 1 and is used for sequentially conveying cold water to the condenser 1 and the steam generator 2; the other path of water outlet channel of the water box 6 is communicated with the steam generator 2 and used for recovering residual water in the steam generator 2.
Because one path of water outlet channel of the water box 6 is communicated with the steam generator 2 through the condenser 1 and is used for sequentially conveying cold water to the condenser 1 and the steam generator 2, the water equivalent to the water box 6 flows into the steam generator 2 after passing through the condenser 1, and at the moment, if high-temperature steam exists in the condenser 1, the cold water and the high-temperature steam exchange heat to increase the condensation efficiency; in addition, water entering the evaporation chamber of the steam generator 2 generates high-temperature steam in the evaporation chamber after the steam generator 2 is started, and the high-temperature steam enters the cooking cavity to exchange heat with food.
Because the steam inlet end of the condenser 1 is communicated with the cooking cavity, high-temperature steam in the cooking cavity enters the condenser 1 to exchange heat with the condenser 1 and/or cold water in the condenser 1 so as to generate low-temperature steam and condensed water.
Because the steam outlet end of the condenser 1 is communicated with the condensation steam exhaust cavity of the condensation steam exhaust component 4, and the steam outlet of the condensation steam exhaust component 4 is communicated with the air duct 5 through the heat radiation fan 3, when the low-temperature waste steam condensed by the condenser 1 passes through the condensation steam exhaust component 4, the low-temperature waste steam is condensed again in the condensation steam exhaust cavity to generate second condensed water and lower-temperature waste steam; lower temperature exhaust steam then enters into wind channel 5 under radiator fan 3's effect in, so low temperature exhaust steam can be further condensed in order to produce third condensate water and ultra-low temperature exhaust steam behind radiator fan 3, the exhaust steam cooking equipment behind the ultra-low temperature exhaust steam entering wind channel 5. This reduces the amount of steam and the temperature of the steam discharged from the front of the cooking apparatus, and solves the problems of the steam cooking apparatus that the amount of the steam discharged from the front is large and the temperature is high.
Because a part of the water in the steam generator 2 comes from the cold water flowing out of the water box 6 and through the condenser 1 into the steam generator 2; the other part comes from the condensed water flowing from the condenser 1 to the steam generator 2, so that the recycling of the water is realized; and the evaporation chamber of the steam generator 2 is also communicated with the water box 6 and used for returning the residual water of the steam generator 2 to the water box 6, so that the utilization time of the single water in the water box is prolonged, and the problem that the service time of the water tank of the conventional steam cooking equipment for adding water once is short is solved.
In the embodiment, the steam generator 2 is provided with a high-temperature steam outlet and a water return port 21 which are communicated with the evaporation chamber; the high-temperature steam outlet is communicated with the cooking cavity, and the water return port 21 is communicated with the water outlet end of the condenser 1 and the water inlet end of the water box 6. Preferably, the water return port 21 is provided at the bottom of the steam generator 2.
Because the return water port 21 is arranged at the bottom of the steam generator 2, water flowing out from the water outlet of the condenser 1 has a sealing effect on the return water port 21, and the steam generated by the steam generator 2 is prevented from flowing into the water box 6 through the return water port 21, so that the steam amount in the cooking cavity is reduced.
In this embodiment, the condensation exhaust cavity of the condensation exhaust component 4 is further communicated with the water return port 21, so that the second condensed water condensed in the condensation exhaust cavity flows to the evaporation chamber of the steam generator 2, and the reuse rate of water is further improved.
As shown in fig. 1, in this example, the condensation recycling system of the steam cooking device further includes a water pumping unit group 7, and the water pumping unit group 7 is disposed on the water outlet channel of the water box 6 at least for pumping the residual water in the steam generator 2 back to the water box 6.
Preferably, the water pumping unit group 7 comprises a first water pumping unit 71 and a second water pumping unit 72; the first water pumping unit 71 is arranged on one path of water flow channel of the water box 6 communicated with the condenser 1 and used for pumping cold water in the water box 6 to the condenser 1; the second pumping unit 72 is disposed on the other water flow path of the water box 6 communicated with the steam generator 2 for pumping the residual water in the steam generator 2 back to the water box 6.
Preferably, the first water pumping unit 71 and the second water pumping unit 72 are both water pumping pumps;
preferably, the water box 6 and the condenser 1 are both disposed at the top of the steam cooking device, and the steam generator 2 is disposed below the rear sidewall of the steam cooking device, so that there is a height difference between the water box 6, the condenser 1 and the steam generator 2, and in order to allow water of the water box 6 to enter into the condenser 1, a suction pump is disposed on a water flow path between the water box 6 and the condenser 1, and cold water entering into the condenser 1 flows back to the steam generator 2 under the action of gravity.
A temperature sensor is arranged at the bottom of the evaporation chamber of the steam generator 2, when the temperature detected by the temperature sensor is not less than a temperature threshold value (namely a temperature value when the steam generator 2 is dry-burned), it indicates that water needs to be added to the steam generator 2, at this time, a first water pumping unit 71 (water pump) is started, cold water stored in a water box 6 is pumped into the condenser 1, and water entering the condenser 1 finally flows into the evaporation chamber of the steam generator 2 under the action of gravity; meanwhile, the water amount added into the steam generator 2 is calculated by controlling the water pumping time and the water pumping flow rate of the first water pumping unit 71, so that the water is prevented from overflowing the steam generator 2.
Since there is a height difference between the water tub 6 and the steam generator 2 is located above the water tub 6, in order to transfer the remaining water in the steam generator 2 back to the water tub 6, it is necessary to install a second pumping unit 72 on a water flow path between the water tub 6 and the steam generator 2.
Preferably, the water inlet end of the second water pumping unit 72 is communicated with the water return port 21 of the steam generator 2 through a water pipe, and the water outlet end of the second water pumping unit 72 is communicated with the water box 6 through a water pipe, so that after the second water pumping unit 72 is started, water in the evaporation chamber of the steam generator 2 returns to the water box 6 through the water return port 21 and the second water pumping unit 72, so as to ensure that bacteria cannot breed in the steam cooking device due to residual water, and the service time of adding water into the water box for one time is prolonged.
As shown in fig. 6 to 10, in the present embodiment, the condensing and exhausting assembly 4 includes a steam inlet 41, a steam outlet 42 and a water outlet 45 which are communicated with the condensing and exhausting chamber; the steam inlet 41 is communicated with a steam outlet of the condenser 1, and the steam outlet 42 is arranged towards the negative pressure area of the heat radiation fan 3; the water outlet 45 also communicates with the evaporation chamber of the steam generator 2.
The low temperature exhaust steam that flows out from the steam outlet of condenser 1 enters into the condensation exhaust cavity through steam inlet 41, is cooled down the condensation once more in the condensation exhaust cavity, and the low temperature steam after being condensed flows to radiator fan 3's negative pressure zone through steam outlet 42, mixes and is formed ultra-low temperature steam by recondensation once more at negative pressure zone and other low temperature air, and ultra-low temperature steam enters into wind channel 5 in, finally by exhaust steam cooking equipment.
The condensed water formed by the condensation of the low-temperature waste steam in the condensation steam exhaust cavity flows out from the water outlet 45 and flows to the evaporation chamber of the steam generator 2 through the water pipe so as to improve the full utilization rate of the water. The condensed water formed by the low-temperature steam condensed in the negative pressure region of the heat radiation fan 3 falls on the heat radiation fan 3 to play a role of cooling the heat radiation fan 3.
As shown in fig. 9 and 10, in the present embodiment, the condensing and exhausting assembly 4 further includes a first casing 43 and a first cover 44, a groove is axially formed on a side wall of the first casing 43, and the first cover 44 is covered on the first casing 43 to form a condensing and exhausting cavity and form an exhausting port 42 together with the groove.
The condensation steam exhaust component 4 is installed on the frame of the heat radiation fan 3, and the steam exhaust port 42 is in a strip shape and has the function of ensuring that low-temperature steam can be uniformly blown to the heat radiation fan 3.
As shown in fig. 11 to 13, in the present embodiment, the condenser 1 includes a housing assembly 11 having a condensation chamber, and a temperature reduction assembly 13;
a steam inlet flow channel 111, a steam outlet flow channel 112, a water inlet flow channel 113 and a water outlet flow channel 114 which are communicated with the condensation cavity are arranged on the shell component 11;
the steam inlet flow channel 111 is communicated with the cooking cavity, the steam outlet flow channel 112 is communicated with the condensation steam exhaust cavity of the condensation steam exhaust component 4, the water inlet flow channel 113 is communicated with the water box 6, and the water outlet flow channel 114 is communicated with the steam generator 2; the cooling assembly 13 is disposed outside the condensation chamber and used for cooling the housing assembly 11.
High-temperature steam flowing out of the cooking cavity enters the condensation cavity through the steam inlet flow channel 111, water of the water box 6 also enters the condensation cavity through the water inlet flow channel 113, the condensed low-temperature steam flows out of the steam outlet flow channel 112 and then enters the condensation steam exhaust component 4, and the water in the condensation cavity flows into the steam generator 2 through the water outlet flow channel 114 and the water return port 21 of the steam generator 2.
As shown in fig. 11, in the present embodiment, the condenser 1 further includes a three-way pipe 15, a first pipe of the three-way pipe 15 is communicated with the condensing cavity, a second pipe is communicated with the cooking cavity to form a steam inlet flow channel 111, and a third pipe is communicated with the steam generator 2 to form a water outlet flow channel 114.
The pipe diameters of the first pipeline and the second pipeline are larger than the pipe diameter of the third pipeline, an included angle between the first pipeline and the second pipeline is a right angle, and an included angle between the first pipeline and the third pipeline is a straight angle. Preferably, the first and third conduits are both vertically disposed and the second conduit is horizontally disposed. The diameter of the first and second tubes is preferably 20mm and the diameter of the third tube is preferably 4mm, in order to ensure that the first and second tubes are not filled with water from the condensation chamber and that the water flows into the second tube and that the water from the condensation chamber flows through the third tube to the evaporation chamber of the steam generator 2.
As shown in fig. 12-14, the housing assembly 11 further includes a second housing 115 and a second cover 116, the second cover 116 covers the second housing 115 to form a condensation chamber, one side of the second cover 116 is connected to the condensation assembly 12, and the other side of the second cover 116 away from the condensation assembly 12 is connected to the heat dissipation assembly 14.
The condensation component 12 and the heat dissipation component 14 are connected through the second cover 116, so that a better heat dissipation effect can be achieved on the condensation component 12, and then the cooling of the condensation cavity is achieved, and the condensation effect is improved.
A plurality of heat dissipation fins 1151 are provided on the second housing 115; a plurality of cooling fins 1151 are arranged around second housing 115 at intervals, so as to accelerate the heat dissipation of second housing 115, and further realize the cooling of the condensation chamber, thereby improving the condensation effect.
As shown in fig. 12 and 13, the cooling module 13 includes a heat dissipating fan 131 and a mounting seat 132; the mounting seat 132 is connected to the condenser 1, and a mounting hole is formed in the mounting seat 132, and the heat dissipation fan 131 is disposed in the mounting hole.
Preferably, the mounting base 132 is a housing structure, and covers the second cover 116 to form an accommodating cavity, the heat sink 142 is disposed in the accommodating cavity, and meanwhile, a mounting hole communicating with the accommodating cavity is formed in the mounting base 132, and the heat dissipating fan 131 is mounted in the mounting hole for rapidly dissipating heat of the heat sink 142.
As shown in fig. 11-13, in the present embodiment, the condenser 1 further includes a condensing assembly 12, and the condensing assembly 12 is disposed in the condensing cavity and connected to the housing assembly 11 for condensing the high-temperature steam. Because the condensation component 12 is located in the condensation cavity, it has a blocking effect on the flow of the high-temperature steam, so as to prolong the retention time of the high-temperature steam in the condensation cavity and improve the condensation effect.
As shown in fig. 14 to 17, the condensing unit 12 includes a plurality of condensing sheets 121; a plurality of condensation sheets 121 are arranged at intervals in the condensation chamber, and the condensation sheets 121 are connected with the shell assembly 11. The material of the condensation sheet 121 is preferably an aluminum alloy.
As shown in fig. 15 to 17, a plurality of condensing sheets 121 are arranged in parallel to each other at intervals in the condensing chamber to form narrow and wide steam channels perpendicular to each other.
As shown in fig. 17, the number of the narrow steam channels is plural, and the plural narrow steam channels are parallel to each other, and the steam flow direction of each narrow steam channel is parallel to the steam outlet direction of the steam outlet flow channel 112. The purpose is to increase the blocking effect on the steam, ensure the retention time of the steam in the condensation cavity to be as long as possible and improve the condensation effect.
As shown in fig. 16, the number of the wide steam channels is plural, and the plural wide steam channels are parallel to each other, and the steam flow direction of each wide steam channel is perpendicular to the narrow steam channel.
As shown in fig. 12 and 13, the condenser 1 further includes a heat dissipation assembly 14, the heat dissipation assembly 14 is disposed outside the condensation chamber, and is connected to the housing assembly 11 for dissipating heat from the heat dissipation assembly 11, so as to accelerate heat dissipation of the housing assembly 11 and further improve condensation effect.
As shown in fig. 18 to 20, the heat dissipating module 14 includes a heat dissipating plate 141 and a plurality of heat dissipating fins 142; the plurality of heat dissipation fins 142 are arranged at intervals on one side of the heat dissipation plate 141, and the other side of the heat dissipation plate 141 facing away from the heat dissipation fins 142 is connected to the housing assembly 11. The heat dissipation plate 141 and the heat dissipation fins 142 are made of aluminum alloy, and the heat dissipation plate 141 has the function of increasing the contact area between the heat dissipation assembly 14 and the housing assembly 11; another aspect is to quickly transfer the high temperature of the housing assembly 11 to the heat sink 142. The heat sink 142 serves to rapidly dissipate heat.
As shown in fig. 19 to 20, a plurality of heat dissipation fins 142 are arranged in parallel to each other at intervals on the heat dissipation plate 141 to form wide heat dissipation channels and narrow heat dissipation channels perpendicular to each other for the purpose of enhancing heat dissipation effect.
The working process of the embodiment is as follows:
as shown in fig. 1-5, if the temperature sensor in the evaporation chamber of the steam generator 2 detects that the temperature of the steam generator 2 is higher than the temperature threshold (i.e. dry-heating temperature), the first water pumping unit 71 (water pump) is started, and the water in the water box 6 is pumped into the condensation chamber of the condenser 1 through the water inlet channel 113, and then flows into the evaporation chamber through the water outlet channel 114 to the water return port 21 of the steam generator 2, so as to achieve the purpose of supplying water to the steam generator 2. In the process of pumping water, if high-temperature steam exists in the condensation chamber, the water entering the condensation chamber also has the condensation effect on the high-temperature steam, and the condensed water is mixed with the original water in the condensation chamber and then flows to the evaporation chamber from the water outlet flow channel 114. During the pumping process, the amount of water added to the steam generator 2 is calculated based on the time the first pumping unit 71 is operated and the water flow rate, so as to prevent the water from overflowing the steam generator 2.
After water is filled in the steam generator 2, the steam generator 2 is heated to generate steam, and the steam flows out from a high-temperature steam outlet of the steam generator 2 and directly enters the cooking cavity to exchange heat with food, so that the purpose of cooking the food is achieved; after the high-temperature steam in the cooking cavity flows out from the steam outlet of the cooking cavity, the high-temperature steam enters the condensation cavity through the steam inlet flow channel 111 of the condenser 1, and meanwhile, the cooling fan 131 of the cooling assembly 13 is started to cool the shell assembly 11 and the cooling assembly 14.
The high-temperature steam entering the condensation chamber flows along the wide steam channel and the narrow steam channel of the condensation assembly 12, and because the temperature of the condensation sheet 121 and the temperature of the condensation chamber are lower than that of the high-temperature steam, the high-temperature steam is condensed in the flowing process of the condensation chamber, and low-temperature steam and condensed water are generated.
After the low-temperature steam flows out from the steam outlet flow channel 112, the low-temperature steam enters the condensation steam exhaust cavity through the air inlet 41 of the condensation steam exhaust component 4, because the temperature of the condensation steam exhaust cavity is also low, the low-temperature steam is condensed again, and then enters the air duct 5 through the steam exhaust port 42 and the negative pressure area of the heat dissipation fan 3, and finally flows out from the front air outlet of the steam cooking device.
The condensed water flows out from the water outlet flow channel 114 again, enters the water return port 21 at the bottom of the steam generator 2 through the water return pipe, seals the water return port 21, avoids that the steam generated by the steam generator directly enters the condenser 1 and the water box 6, reduces the starting times of the first water pumping unit 71 in unit time, and increases the service time of once water adding in the water tank.
After the second water pumping unit 72 (water pump) is started, the condensed water in the water return pipeline and the stored water in the steam generator 2 are pumped back to the water box 6, so that the residual water in the steam cooking device is reduced, and the service time of adding water into the water box for one time is prolonged.
The steam cooking equipment can be a steam box, a steam oven, a steam-baking all-in-one machine, a micro steam box, a micro steam oven and other cooking equipment.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the described parent features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (17)
1. A condensation recovery system of a steam cooking device is characterized by comprising a steam generator (2) used for conveying high-temperature steam into a cooking cavity, a condenser (1) used for condensing high-temperature waste steam from the cooking cavity, and a condensation steam exhaust assembly (4) used for exhausting the low-temperature waste steam condensed by the condenser (1) to a negative pressure area of a heat dissipation fan (3);
the bottom of the steam generator (2) is arranged at a water return port (21), the heat radiation fan (3) is arranged at an air inlet of the air duct (5), and the condensation steam exhaust component (4) is provided with a condensation steam exhaust cavity; the steam outlet end of the condenser (1) is communicated with the condensing steam exhaust cavity; the play steam end orientation of condensation exhaust subassembly (4) the negative pressure zone of radiator fan (3) is used for the process condenser (1) condensation, and enters into the low temperature exhaust steam of condensation exhaust intracavity passes through wind channel (5) discharge steam cooking equipment the comdenstion water process that condensation exhaust intracavity condensation produced return water mouth (21) flow direction in steam generator (2).
2. Condensation recycling system of a steam cooking device according to claim 1, characterized in that one outlet channel of a water box (6) is in communication with the steam generator (2) through the condenser (1) for feeding cold water to the condenser (1) and the steam generator (2) in sequence; and the other path of water outlet channel of the water box (6) is communicated with the steam generator (2) and is used for recovering the residual water in the steam generator (2).
3. A condensation recycling system of a steam cooking apparatus according to claim 1 or 2, wherein the condensation steam exhaust assembly (4) comprises a steam inlet (41), a steam outlet (42) and a water outlet (45) all communicating with the condensation steam exhaust chamber; the steam inlet (41) is communicated with a steam outlet end of the condenser (1), and the steam outlet (42) is arranged towards a negative pressure area of the heat radiation fan (3); the water outlet (45) is also communicated with the evaporation chamber of the steam generator (2).
4. A condensation recycling system for steam cooking devices according to claim 3, characterized in that said condensation and steam discharging assembly (4) further comprises a first casing (43) and a first cover (44), wherein a groove is axially arranged on the side wall of said first casing (43), and said first cover (44) is covered on said first casing (43) to form said condensation and steam discharging cavity and form said steam discharging port (42) with said groove.
5. Condensation recycling system of a steam cooking device according to claim 1 or 2, characterized in that the condenser (1) comprises a housing assembly (11) with a condensation chamber, and a temperature reduction assembly (13);
the shell assembly (11) is provided with a steam inlet flow passage (111), a steam outlet flow passage (112), a water inlet flow passage (113) and a water outlet flow passage (114) which are all communicated with the condensation cavity;
the steam inlet flow channel (111) is communicated with a cooking cavity, the steam outlet flow channel (112) is communicated with a condensation steam exhaust cavity of the condensation steam exhaust component (4), the water inlet flow channel (113) is communicated with the water box (6), and the water outlet flow channel (114) is communicated with the steam generator (2); the cooling assembly (13) is arranged outside the condensation cavity and used for cooling the shell assembly (11).
6. Condensation recycling system of a steam cooking device according to claim 5, characterized in that the condenser (1) further comprises a tee (15), a first pipe of the tee (15) communicating with the condensation chamber, a second pipe communicating with the cooking chamber forming the steam inlet flow channel (111), and a third pipe communicating with the steam generator (2) forming the water outlet flow channel (114).
7. A condensation and recovery system for a steam cooking device according to claim 6, wherein the pipe diameters of the first and second pipes are larger than the pipe diameter of the third pipe, and the included angle between the first and second pipes is a right angle, while the included angle between the first and third pipes is a straight angle.
8. Condensation recycling system of a steam cooking device according to claim 5, characterized in that the condenser (1) further comprises a condensation assembly (12), the condensation assembly (12) being arranged inside the condensation chamber and being connected with the housing assembly (11) for condensing high temperature waste steam.
9. Condensation recycling system of a steam cooking device according to claim 5, characterized in that the condenser (1) further comprises a heat dissipating assembly (14), the heat dissipating assembly (14) being arranged outside the condensation chamber and connected to the housing assembly (11) for dissipating heat from the heat dissipating assembly (11).
10. A condensation recycling system of a steam cooking device according to claim 9, wherein the housing assembly (11) further comprises a second housing (115) and a second cover (116), the second cover (116) covers the second housing (115) to form the condensation chamber, one side of the second cover (116) is connected to the condensation assembly (12), and the other side of the second cover (116) away from the condensation assembly (12) is connected to the heat sink assembly (14).
11. Condensation recycling system of a steam cooking device according to claim 10, characterized in that the second casing (115) is provided with a plurality of heat dissipating fins (1151); a plurality of the heat dissipating fins (1151) are disposed around the second housing (115) at intervals.
12. Condensation recycling system of a steam cooking device according to claim 8, characterized in that the condensation assembly (12) comprises a plurality of condensation sheets (121); a plurality of the condensation sheets (121) are arranged in parallel and spaced in the condensation chamber to form a narrow steam channel and a wide steam channel perpendicular to each other, and the condensation sheets (121) are connected with the shell assembly (11).
13. A condensation recycling system of a steam cooking apparatus according to claim 12, wherein the number of the narrow steam passages and the wide steam passages is plural, and plural narrow steam passages are parallel to each other, and the steam flow direction of each narrow steam passage is parallel to the steam outlet direction of the steam outlet flow passage (112); a plurality of the wide steam channels are arranged in parallel with each other.
14. Condensation recycling system of a steam cooking device according to claim 9, characterized in that said heat dissipating assembly (14) comprises a heat dissipating plate (141) and a plurality of heat dissipating fins (142); the radiating fins (142) are arranged on one side of the radiating plate (141) in parallel at intervals to form wide radiating channels and narrow radiating channels which are perpendicular to each other, and the other side of the radiating plate (141) which is away from the radiating fins (142) is connected with the shell assembly (11).
15. Condensation recycling system of a steam cooking device according to claim 5, characterized in that said supercooling component (13) comprises a cooling fan (131) and a mounting seat (132); the mounting seat (132) is connected with the condenser (1), a mounting hole is formed in the mounting seat (132), and the heat dissipation fan (131) is arranged in the mounting hole.
16. Condensation recycling system of a steam cooking device according to claim 2, further comprising a pumping unit group (7), said pumping unit group (7) being provided on the water outlet channel of the water box (6) at least for pumping back the residual water inside the steam generator (2) to the water box (6).
17. Condensation recycling system of a steam cooking device according to claim 16, characterized in that the set of pumping units (7) comprises a first pumping unit (71) and a second pumping unit (72); the first water pumping unit (71) is arranged on one path of water flow channel of the water box (6) communicated with the condenser (1) and is used for pumping cold water in the water box (6) to the condenser (1); the second water pumping unit (72) is arranged on another path of water flow channel of the water box (6) communicated with the steam generator (2) and used for pumping residual water in the steam generator (2) back to the water box (6).
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