CN107997566B

CN107997566B - Steam condensation recovery structure for steam box

Info

Publication number: CN107997566B
Application number: CN201710446897.4A
Authority: CN
Inventors: 肖辉; 方小林; 杨均; 郑德华; 曹骥; 茅忠群; 诸永定
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2017-06-14
Filing date: 2017-06-14
Publication date: 2023-06-20
Anticipated expiration: 2037-06-14
Also published as: CN107997566A

Abstract

The invention relates to a steam condensation recovery structure for a steam box, which comprises a condensation device and a steam generator, wherein the condensation device comprises a condensation main body with a steam inlet, an exhaust port and a condensate water outlet, a condensation cavity and a water storage cavity are arranged in the condensation main body, the condensation cavity and the water storage cavity are communicated through a water guide groove, the steam inlet and the exhaust port are respectively arranged on the condensation cavity, and the condensate water outlet is arranged on the water storage cavity and is in fluid communication with the steam generator. Compared with the prior art, the steam condensation recovery structure can effectively avoid the degradation of the external use environment of the steam box caused by the fact that water in steam is brought to an external space along with gas, and influences the use experience of a user.

Description

Steam condensation recovery structure for steam box

Technical Field

The invention relates to the field of household electric steam boxes, in particular to a steam condensation recovery structure for a steam box.

Background

Along with the improvement of living standard, healthy and natural diet is more and more favored by people, and steamed foods are favored because the nutritional ingredients of the food can be reserved to the greatest extent. A steam box is a common electric appliance for steaming food, and generally comprises a box body and a steam generating device, wherein the steam generating device comprises a water tank and a heating plate, and water in the water tank forms a large amount of steam under the action of heat emitted by the heating plate, and the steam is used for steaming food.

In the existing steam box, a large amount of steam is generated by the steam generator and is introduced into the inner container, the steam is discharged through the steam discharging connector of the inner container after food is heated in the inner container, and waste gas is discharged out of the atmosphere through the steam discharging pipe.

Disclosure of Invention

The invention aims to solve the technical problem of providing a steam condensation recovery structure for a steam box, which can thoroughly prevent water in steam from being dispersed to the outside.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a steam condensation recovery structure for steam ager, its characterized in that includes condensing equipment and steam generator, and this condensing equipment is including having steam inlet, gas vent and condensate outlet's condensation main part, and the inside of this condensation main part is provided with condensation chamber and water storage chamber, and this condensation chamber communicates with each other through the guiding gutter with the water storage chamber, and above-mentioned steam inlet and gas vent set up respectively on the condensation chamber, and above-mentioned condensate outlet sets up on the water storage chamber and with above-mentioned steam generator fluid communication.

Preferably, the condensation main body comprises an upper condensation plate, a lower condensation plate and a side plate, wherein the upper condensation plate and the lower condensation plate are arranged in an up-down opposite way, the side plate is connected between the upper condensation plate and the lower condensation plate, and the upper condensation plate, the lower condensation plate and the side plate are enclosed to form the condensation cavity; the steam inlet is arranged on the side plate and is positioned at one side of the condensing cavity, the air outlet is arranged on the lower condensing plate and is positioned at the other side of the condensing cavity, and a flow dividing plate is arranged between the steam inlet and the air outlet; the splitter plate is vertically abutted between the upper condensing plate and the lower condensing plate, a splitter cavity is formed by surrounding the splitter plate and a side plate at the steam inlet side, and the splitter plate is provided with a steam inlet communicated with the exhaust port. When the steam enters the condensing cavity from the steam inlet, the steam can be made to be irregularly turbulent in the splitting cavity due to the existence of the splitting cavity, so that the speed in all directions is homogenized.

Further, preferably, the splitter plate is close to the steam inlet, and the steam inlet is vertically formed in the middle of the splitter plate, so that steam entering the splitter cavity uniformly enters the other side of the condensing cavity, and the steam can be condensed better.

Preferably, the steam condensation recovery structure further comprises a water tank, wherein a rapid condensation cavity is formed at the upper part of the upper condensation plate, the rapid condensation cavity is provided with a water inlet, and the water inlet is in fluid communication with a water outlet of the water tank, so that the heat dissipation efficiency can be effectively improved through the arrangement of the rapid condensation cavity.

Further, the flash condensation chamber also has a water transfer port in fluid communication with the steam generator. Therefore, the hot water can be supplied to the normal steam box waterway circulation, the energy can be reused, meanwhile, the hot water is replaced by cold water with low temperature, and the condensation effect of the rapid condensation cavity is maintained.

Preferably, at least two concave pits which are concave downwards are arranged at the position of the upper condensation plate at least at the position of the rapid condensation cavity. The setting of pit can increase the contact of comdenstion water and hot air to improve heat exchange efficiency, the comdenstion water around the pit can assemble together simultaneously, assemble into the state of big drop of water and drop down on the condensation plate, and then prevent that the top of condensation chamber from gathering a large amount of drops of water, influence availability factor.

Preferably, the lower condensing plate is provided with at least two protruding blocks at intervals from bottom to top, and the middle part of each protruding block is provided with the exhaust port.

Preferably, the lower condensing plate is disposed obliquely downward in a steam inlet direction, and the water guide groove is disposed opposite to the projection and is located at a lower side of the projection. The condensed water dropped from the upper condensing plate can be converged into the water guide groove through the gap and enter the water storage cavity through the water guide groove, so that the exhaust is realized without influencing the passing of the condensed water.

Preferably, the steam condensation recovery structure further comprises a steam exhaust pipe, wherein the steam exhaust pipe comprises a horizontal section connected with the steam inlet, a vertical section connected with the steam outlet of the steam box, and a smooth transition section connected between the horizontal section and the vertical section. The design of the smooth transition section ensures that condensed water in the steam exhaust pipe can not accumulate at the position, but directly enter the inner container, thereby effectively reducing noise.

Preferably, the steam condensation recovery structure of the present invention further comprises a fan, and the condensing device further comprises an air deflector, the air deflector is formed by extending from the bottom of the condensation main body to one side, the bottom of the air deflector and the bottom of the condensation main body form an air guiding channel, and the air outlet is led to the air guiding channel; the air guide channel forms an air inlet at one end of the bottom of the condensation main body, the fan is arranged on the air inlet, and the air guide channel forms an air outlet which is communicated with the outside at the bottom of the air guide plate relative to the far end of the condensation main body. The fan is used for guiding air into the air guide channel through the air inlet, when the air flow is fed into the bottom of the condensing device, the condensing device can be radiated through forced convection, and heat is led to the outside through the air guide channel and the air outlet through the ventilation gap.

Compared with the prior art, the invention has the advantages that: the steam condensation recovery structure comprises a condensation device, wherein the condensation device comprises a condensation main body with a steam inlet, an exhaust port and a condensate water outlet, a condensation cavity and a water storage cavity are arranged in the condensation main body, the condensation cavity and the water storage cavity are communicated through a water guide groove, the steam inlet and the exhaust port are respectively arranged on the condensation cavity, and the condensate water outlet is arranged on the water storage cavity and is in fluid communication with a steam generator. The steam inlet is communicated with the inner container of the steam box, so that steam in the inner container enters the condensing cavity through the steam inlet, water in the steam is condensed into liquid water in the condensing cavity, the liquid water enters the water storage cavity through the water guide groove, and the liquid water enters the steam generator through the condensate water outlet and enters the waterway circulation of the steam box. Therefore, the steam condensation recovery structure can effectively avoid the degradation of the external use environment of the steam box caused by the fact that the water in the steam is brought to the external space along with the gas, and influences the use experience of a user.

Drawings

FIG. 1 is a schematic diagram of a steam box according to an embodiment of the present invention;

FIG. 2 is a schematic view of a part of a steam box according to an embodiment of the present invention;

FIG. 3 is a schematic view of a condensing device according to an embodiment of the present invention;

FIG. 4 is an exploded view of a condensation device in accordance with an embodiment of the present invention;

FIG. 5 is a partial cross-sectional view of a condensing device in an embodiment of the invention;

FIG. 6 is a cross-sectional view of a condensing unit in an embodiment of the invention;

fig. 7 is a schematic structural diagram of a steam exhaust pipe according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1, a steam box comprises a shell 1 and a liner 3 (shown in fig. 2) arranged in the shell 1, wherein a door body 11 and a touch panel 12 are arranged on the front surface of the shell 1, and the touch panel 12 is arranged above the door body 11 and a ventilation gap 13 is reserved between the door body 11.

As shown in fig. 2 to 7, the steam box is provided with a steam condensing and recovering structure, and the steam condensing and recovering structure comprises a condensing device 2, a steam generator 5, a water tank 4 and a fan 7. Specifically, the condensing device 2 includes a condensing body 21 having a steam inlet 212a, a steam outlet 216a, and a condensed water outlet 241, wherein a condensing chamber 210 and a water storage chamber 24 are provided in the condensing body 21, the condensing chamber 210 and the water storage chamber 24 are communicated through a water guiding groove 23, the steam inlet 212a and the steam outlet 216a are respectively provided in the condensing chamber 210, and the condensed water outlet 241 is provided in the water storage chamber 24 and is in fluid communication with the steam generator 5: when the condensing means 2 and the steam generator 5 are arranged at a distance (i.e. in the case of the embodiment), they may be communicated by means of additional pipes or tubes (dashed line part in fig. 2); when the condensing means 2 and the steam generator 5 are disposed next to each other, the condensed water outlet 241 may also be directly connected to the steam generator 5 (not shown). The steam inlet 212a is connected to the steam outlet 9 of the inner container 3 through the steam outlet 6, so that steam in the inner container 3 sequentially passes through the steam outlet 9, the steam outlet 6 and the steam inlet 212a to enter the condensation chamber 210, water in the steam is condensed into liquid water in the condensation chamber 210, the liquid water enters the water storage chamber 24 through the water guide groove 23 and enters the steam generator 5 through the condensed water outlet 241, enters the waterway circulation of the steam box, and gas is discharged through the air outlet 216a. Therefore, the steam condensation recovery structure can effectively avoid the degradation of the external use environment of the steam box caused by the fact that the water in the steam is brought to the external space along with the gas, and influences the use experience of a user.

Further, in operation of the steam exhaust pipe 6, since the amount of the condensed water 102 in the steam exhaust pipe 6 is excessively large, there is a certain blowing sound, and in addition, the condensation chamber 210 connected to the steam exhaust pipe 6 corresponds to a large resonance chamber, and the sound is amplified to some extent. Therefore, the structure of the existing exhaust pipe 6 is improved in the present embodiment: the steam exhaust pipe 6 in this embodiment includes a horizontal section 61 connected to the steam inlet 212a and a vertical section 62 connected to the steam exhaust joint 9 of the steam box, and further includes a smooth transition section 63 connected between the horizontal section 61 and the vertical section 62 and a steam exhaust interface 64 connected to the steam exhaust joint 9. The design of the smooth transition section 63 ensures that condensed water 102 in the steam exhaust pipe 6 does not accumulate at the position, but directly enters the liner 3, thereby effectively reducing noise.

The condensing body 21 includes upper and

lower condensing plates

211 and 213 disposed opposite to each other, and a side plate 212 connected between the upper and

lower condensing plates

211 and 213, and the upper and

lower condensing plates

211 and 213 and the side plate 212 define the condensing chamber 210. The steam inlet 212a is formed on the side plate 212 and located at one side of the condensing chamber 210, the air outlet 216a is formed on the lower condensing plate 213 and located at the other side of the condensing chamber 210, and a dividing plate 217 is disposed between the steam inlet 212a and the air outlet 216a. The splitter plate 217 is vertically abutted between the upper and lower condensing plates 211,213, the splitter plate 217 and the side plate 212 at the side of the steam inlet 212a enclose a splitter cavity 219, and the splitter plate 217 is provided with a steam inlet 218 communicating with the steam outlet 216a. When the steam enters the condensing chamber 210 through the steam inlet 212a, the steam is irregularly turbulent in the diversion chamber 219 due to the existence of the diversion chamber 219, so that the speed in all directions is homogenized. Preferably, the split plate 217 is close to the steam inlet 212a, and the steam inlet 218 is vertically formed at the middle of the split plate 217, so that the steam in the split chamber 219 can uniformly enter the other side of the condensing chamber 210, thereby better condensing the steam.

Further, the steam generated in the operation of the steam box enters the condensing device 2 through the steam discharge pipe 6, and according to the related knowledge about the saturated steam pressure in thermodynamics, it can be known that the water in the steam can be condensed after the temperature is reduced, so that small water drops are formed. The condensing device 2 corresponds to a high-efficiency condenser, and heat in the steam can be dissipated through heat conduction and heat radiation, but only by these means, the heat dissipation efficiency is low. In order to improve the heat dissipation efficiency, the vapor condensation recovery structure in this embodiment further includes a water tank 4, the upper portion of the upper condensation plate 211 is formed with a rapid condensation chamber 214, the rapid condensation chamber 214 has a water inlet 214a, and the water inlet 214a is in fluid communication with the water outlet 42 of the water tank 4 (the water tank 4 is further provided with a water return port 41): when the flash condensation chamber 214 and the tank 4 are arranged at a distance (i.e. in the case of the embodiment), they can be communicated by means of additional pipes or lines (dashed line in fig. 2); when the rapid condensation chamber 214 and the water tank 4 are disposed next to each other, the water inlet 214a may also be directly connected to the water outlet 42 (not shown). In addition, the rapid condensation chamber 214 has a water delivery port 214b, the water delivery port 214b being in fluid communication with the steam generator 5: when the flash condensation chamber 214 and the steam generator 5 are arranged at a distance (i.e. in the case of the embodiment), they may be communicated by means of additional pipes or tubes (dashed line in fig. 2); when the rapid condensation chamber 214 and the steam generator 5 are disposed next to each other, the water delivery port 214b may also be in direct communication with the steam generator 5 (not shown). Since the cooling water 109 in the flash condensation chamber 214 is directly drawn from the tank, it is ensured that the cooling water 109 in the flash condensation chamber 214 has a low water temperature close to room temperature. In the normal working state of the steam box, the discharge capacity of steam is continuously changed in a curve with a peak value. In a smooth operating state, the cooling water 109 may absorb heat from the steam on the one hand and dissipate heat outwards on the other hand, maintaining a balance of heat. When the peak value of the steam quantity appears, the high heat capacity of the water can temporarily absorb the part of the large heat, the hot water is taken into the normal steam box waterway circulation under the pumping action of the water inlet pump, so that the energy is reused, and meanwhile, the hot water is replaced by cold water with low temperature, so that the condensation effect of the rapid condensation cavity 214 is maintained.

Further, on the one hand, at least two concave pits 215 are disposed at the position of the upper condensation plate 211 at least in the rapid condensation chamber 214, and in this embodiment, the concave pits 215 are uniformly distributed on the upper condensation plate 211 at the position of the rapid condensation chamber 214 at an array interval. The arrangement of the concave pit 215 can increase the contact between the condensed water 102 and the hot air, thereby improving the heat exchange efficiency, and meanwhile, the condensed water 102 around the concave pit 215 can be converged together, and drops onto the lower condensing plate 213 in a state of converging into big water drops, thereby preventing the top of the condensing cavity 210 from accumulating a large amount of water drops and affecting the use efficiency. On the other hand, at least two protruding blocks 216 are protruded from top to bottom on the lower condensing plate 213, and the air outlet 216a is provided at the middle of each protruding block 216. In this embodiment, six protrusions 216 are uniformly distributed at intervals in a straight line, each protrusion 216 has a truncated cone shape, and the exhaust port 216a is formed at the center of each protrusion 216. The lower condensing plate 213 is disposed to be inclined downward in the steam inlet direction (the inclination angle of the lower condensing plate 213 is 5 degrees in the present embodiment), and the water guide groove 23 is disposed opposite to the projection 216 and is located at the lower side of the projection 216. Gaps are reserved between the adjacent convex blocks 216, so that condensed water 102 dropping from the upper condensation plate 211 can be converged into the water guide groove 23 through the gaps and enter the water storage cavity 24 through the water guide groove 23, and the exhaust is realized without influencing the passing of the condensed water 102.

In addition, the steam condensation recovery structure in this embodiment further includes a fan 7 (in this embodiment, the fan 7 is a cross-flow fan), and the condensing device 2 further includes an air deflector 22, the air deflector 22 extends from the bottom of the condensation body 21 to one side, the bottom of the air deflector 22 and the bottom of the condensation body 21 form an air guiding channel 220, and the air outlet 216a opens into the air guiding channel 220. The air guide channel 220 forms an air inlet 221 at one end of the bottom of the condensation body 21, the fan 7 is disposed on the air inlet 221, and the air guide channel 220 forms an air outlet 222 at the bottom of the air guide plate 22 opposite to the distal end of the condensation body 21. The fan 7 is used for introducing air into the air guide channel 220 through the air inlet 221, and when the air flow is fed into the bottom of the condensing device 2, the condensing device 2 can be radiated by forced convection, and the heat is led to the outside through the air guide channel 220 and the air outlet 222 through the ventilation gap. In addition, air intake 221 department is provided with temperature controller 8, and when fan 7 broke down, steam was revealed from air intake 221 department, temperature controller 8 can control steam condensation recovery structure outage to protect steam condensation recovery structure.

Claims

1. A steam condensing and recovering structure for a steam box, characterized by comprising a condensing device (2) and a steam generator (5), wherein the condensing device (2) comprises a condensing main body (21) with a steam inlet (212 a), an exhaust port (216 a) and a condensed water outlet (241), a condensing cavity (210) and a water storage cavity (24) are arranged in the condensing main body (21), the condensing cavity (210) and the water storage cavity (24) are communicated through a water guide groove (23), the steam inlet (212 a) and the exhaust port (216 a) are respectively arranged on the condensing cavity (210), and the condensed water outlet (241) is arranged on the water storage cavity (24) and is in fluid communication with the steam generator (5),

the condensing main body (21) comprises an upper condensing plate (211) and a lower condensing plate (213) which are arranged oppositely up and down, and a side plate (212) connected between the upper condensing plate (211) and the lower condensing plate (213), wherein the upper condensing plate (211), the lower condensing plate (213) and the side plate (212) are enclosed to form the condensing cavity (210);

the steam inlet (212 a) is formed in the side plate (212) and is positioned at one side of the condensing cavity (210), the air outlet (216 a) is formed in the lower condensing plate (213) and is positioned at the other side of the condensing cavity (210), and a flow dividing plate (217) is arranged between the steam inlet (212 a) and the air outlet (216 a);

the splitter plate (217) is vertically abutted between the upper and lower condensing plates (211, 213) and forms a splitter cavity (219) with the side plate (212) on the side of the steam inlet (212 a), the splitter plate (217) is provided with a steam inlet (218) communicated with the exhaust port (216 a), the splitter plate (217) is close to the steam inlet (212 a), and the steam inlet (218) is vertically arranged in the middle of the splitter plate (217).

2. The vapor condensation recovery structure according to claim 1, further comprising a water tank (4), wherein a flash condensation chamber (214) is formed at an upper portion of said upper condensation plate (211), and wherein said flash condensation chamber (214) has a water inlet (214 a), and wherein said water inlet (214 a) is in fluid communication with a water outlet (42) of said water tank (4).

3. The vapor condensation recovery structure according to claim 2, wherein said flash condensation chamber (214) further has a water delivery port (214 b), the water delivery port (214 b) being in fluid communication with the vapor generator (5).

4. The vapor condensation recovery structure according to claim 2, wherein said upper condensation plate (211) is provided with at least two downwardly recessed pockets (215) at least at the location of the rapid condensation chamber (214).

5. The vapor condensation recovery structure according to claim 2, wherein at least two protruding blocks (216) are provided on the lower condensation plate (213) at intervals from bottom to top, and the middle part of each protruding block (216) is provided with the exhaust port (216 a).

6. The vapor condensation recovery structure according to claim 5, wherein said lower condensation plate (213) is disposed obliquely downward in the vapor entering direction, and said water guiding groove (23) is disposed opposite to the projection (216) and on the lower side of the projection (216).

7. The vapor condensation recovery structure according to any one of claims 1 to 6, further comprising a vapor discharge pipe (6), wherein the vapor discharge pipe (6) comprises a horizontal section (61) connected to the vapor inlet (212 a) and a vertical section (62) connected to a vapor discharge joint (9) of the vapor chamber, and further comprises a rounded transition section (63) connected between the horizontal section (61) and the vertical section (62).

8. The steam condensation recovery structure according to any one of claims 1 to 6, further comprising a fan (7), wherein the condensing device (2) further comprises an air deflector (22), the air deflector (22) extends from the bottom of the condensation body (21) to one side, the bottom of the air deflector (22) and the bottom of the condensation body (21) form an air guide channel (220), and the air outlet (216 a) opens into the air guide channel (220);

the air guide channel (220) forms an air inlet (221) at one end of the bottom of the condensation main body (21), the fan (7) is arranged on the air inlet (221), and the air guide channel (220) forms an air outlet (222) which is communicated with the outside relative to the far end of the condensation main body (21) at the bottom of the air guide plate (22).