CN111089314B - Range hood of high-efficient oil strain and flue gas waste heat utilization system - Google Patents
Range hood of high-efficient oil strain and flue gas waste heat utilization system Download PDFInfo
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- CN111089314B CN111089314B CN201911096525.9A CN201911096525A CN111089314B CN 111089314 B CN111089314 B CN 111089314B CN 201911096525 A CN201911096525 A CN 201911096525A CN 111089314 B CN111089314 B CN 111089314B
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- oil smoke
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims description 11
- 239000003546 flue gas Substances 0.000 title claims description 11
- 239000002918 waste heat Substances 0.000 title claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 205
- 239000000779 smoke Substances 0.000 claims abstract description 145
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 238000005452 bending Methods 0.000 claims abstract description 5
- 238000003860 storage Methods 0.000 claims description 20
- 239000006233 lamp black Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 12
- 238000000926 separation method Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 239000004071 soot Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2071—Removing cooking fumes mounting of cooking hood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a high-efficiency oil-filtering range hood, which comprises a range hood body and a smoke collecting hood, wherein the smoke collecting hood is provided with a smoke inlet, a heat exchange oil net is arranged at the smoke inlet, the heat exchange oil net comprises a heat exchange pipe group used for condensing oil smoke and allowing the oil smoke to pass through, the heat exchange pipe group is provided with a water inlet and a water outlet, the heat exchange pipes of the heat exchange pipe group define a plurality of bent oil smoke channels by arranging cross sectional areas with different sizes, each oil smoke channel is correspondingly provided with an air inlet and an air outlet, and the heat exchange pipe group defines the air inlet and the air outlet by bending the heat exchange pipes of the heat exchange pipe group. According to the range hood, the heat exchange oil net is adopted to replace the traditional oil net, the flow direction of oil smoke is bent when the oil smoke flows through the heat exchange oil net, the oil smoke path is prolonged, so that the oil smoke can better exchange heat with water in the heat exchange oil net, and the oil smoke separation effect and the oil smoke heat energy utilization rate are improved.
Description
Technical Field
The invention relates to the technical field of range hoods, in particular to a range hood capable of efficiently filtering oil and a flue gas waste heat utilization system.
Background
The existing range hood directly discharges oil smoke outdoors, a large amount of heat energy in the oil smoke is not effectively utilized, energy waste is caused, and a heat island effect is generated. Therefore, a range hood and a flue gas waste heat utilization system which can efficiently filter oil and have high oil smoke heat utilization rate are developed.
Disclosure of Invention
The invention aims to solve one of the problems in the prior related art at least to a certain extent, and therefore the invention provides the range hood capable of efficiently filtering oil, which not only can improve the utilization rate of heat energy of oil smoke, but also can efficiently filter oil.
The invention also provides a flue gas waste heat utilization system applying the range hood.
According to the range hood of the high-efficient oil strain that provides above-mentioned, it realizes through following technical scheme:
the utility model provides a range hood of high-efficient oil strain, includes cigarette machine body and collection petticoat pipe, the smoke inlet has been seted up to the collection petticoat pipe, wherein it is provided with the heat transfer oil net to advance the petticoat pipe department, the heat transfer oil net is including the heat exchange tube group that is used for making the oil smoke condensation and supplies the oil smoke to pass through, the heat exchange tube group is provided with water inlet and delivery port, through setting up the different cross-sectional areas of variation in size a plurality of oil smoke passageways of bending are injectd to the heat exchange tube group, every the correspondence of oil smoke passageway is provided with air inlet and gas outlet, the heat exchange tube group injects the air inlet with the gas outlet through bending its heat exchange tube.
In some embodiments, the heat exchange tube set includes a plurality of sub heat exchange tube sets arranged at intervals in the left-right direction, the oil smoke channel is formed in each sub heat exchange tube set, any two adjacent sub heat exchange tube sets are communicated with each other, a gap for forming the air inlet is reserved between the lower ends of any two adjacent sub heat exchange tube sets, and a gap for forming the air outlet is reserved between the upper ends of any two adjacent sub heat exchange tube sets.
In some embodiments, the heat exchange tube assemblies comprise a lower heat exchange tube assembly and an upper heat exchange tube assembly which are arranged in a staggered manner, a water inlet end of the upper heat exchange tube assembly is communicated with a water outlet end of the lower heat exchange tube assembly, a water inlet end of the lower heat exchange tube assembly is communicated with a water outlet end of the upper heat exchange tube assembly close to the left side of the lower heat exchange tube assembly, a water inlet is communicated with a water inlet end of the lower heat exchange tube assembly on the left side, and a water outlet is communicated with a water outlet end of the upper heat exchange tube assembly on the right side; the connecting ends of the upper layer heat exchange tube group and the lower layer heat exchange tube group jointly define the oil smoke channel.
In some embodiments, the lower heat exchange tube group comprises a plurality of lower heat exchange tubes arranged side by side along the front-rear direction of the lower heat exchange tube group, the upper heat exchange tube group comprises a plurality of upper heat exchange tubes arranged side by side along the front-rear direction of the upper heat exchange tube group, the upper heat exchange tubes and the lower heat exchange tubes are arranged in a staggered manner, the water inlet ends of the upper heat exchange tubes are communicated with the water outlet ends of the lower heat exchange tubes close to the left sides of the upper heat exchange tubes, and the water outlet ends of the upper heat exchange tubes are communicated with the water inlet ends of the lower heat exchange tubes close to the right sides of the upper heat exchange tubes; the upper heat exchange tube and the adjacent connecting end of the lower heat exchange tube jointly define a sub-oil smoke channel forming part of the oil smoke channel.
In some embodiments, the sub heat exchange tube group further comprises a plurality of communicating tubes, the lower heat exchange tube is in a shape of 'U', the upper heat exchange tube is in a shape of 'U', two ends of the upper heat exchange tube are communicated with two adjacent lower heat exchange tubes through the communicating tubes respectively, any two adjacent communicating tubes in the front-rear direction form an airflow channel for oil smoke to pass through, and the airflow channel is part of the oil smoke channel.
In some embodiments, the lower heat exchange tubes are in tight abutment with each other or have a gap for oil smoke to pass through in the front-rear direction, and the upper heat exchange tubes are in tight abutment with each other or have a gap for oil smoke to pass through in the front-rear direction.
In some embodiments, a water distribution cavity is arranged in the lower layer heat exchange tube group on the left side of the heat exchange oil net, and the water distribution cavity is respectively communicated with the water inlet and the water inlet end of each lower heat exchange tube on the left side; and a water collecting cavity is arranged in the upper-layer sub heat exchange tube group on the right side of the heat exchange oil net, and the water collecting cavity is respectively communicated with the water outlet and the water outlet end of each upper heat exchange tube on the right side.
In some embodiments, the water storage device further comprises a water storage tank, a hot water pipe and a hot water pipe, the water outlet is arranged at the bottom of the water collection cavity and extends downwards, two ends of the hot water pipe are respectively communicated with the water outlet and the water storage tank, the water outlet is arranged at the bottom of the water collection cavity and extends downwards, and two ends of the hot water pipe are respectively communicated with the water outlet and the water storage tank.
In some embodiments, the heat exchange oil network further comprises a right connecting plate and a left connecting plate, the right connecting plate is arranged on the right side of the heat exchange tube set and is fixedly connected with the smoke collecting hood, and the left connecting plate is arranged on the left side of the heat exchange tube set and is fixedly connected with the smoke collecting hood.
According to the flue gas waste heat utilization system that provides above-mentioned, it realizes through following technical scheme:
a flue gas waste heat utilization system comprises a water heater, a warm water pipe and the range hood, wherein the range hood is further arranged, and a warm water inlet of the water heater is communicated with a water outlet through the warm water pipe.
Compared with the prior art, the invention at least comprises the following beneficial effects: according to the range hood, the heat exchange oil net is adopted to replace the traditional oil net, so that oil smoke is condensed when flowing through the heat exchange oil net, the flow direction of the oil smoke is bent, the oil smoke path is prolonged, the oil smoke can better exchange heat with water in the heat exchange oil net, the oil smoke temperature is reduced, the oil smoke separation effect is improved, the purpose of efficiently filtering oil is achieved, the utilization rate of oil smoke heat energy is improved, and the energy loss and the generation of a heat island effect are reduced.
Drawings
Fig. 1 is a schematic structural diagram of a range hood in embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of a heat exchange oil network in example 1 of the present invention;
FIG. 3 is a schematic structural view of another angle of the heat exchange oil network in example 1 of the present invention;
FIG. 4 is a sectional view of a heat exchange oil network in example 1 of the present invention;
FIG. 5 is a schematic view of a partial structure of a heat exchange oil network in an operating state according to embodiment 1 of the present invention;
FIG. 6 is a schematic view of the water flow direction when the heat exchange oil network is in an operating state in example 1 of the present invention;
fig. 7 is a schematic structural diagram of a flue gas waste heat utilization system in embodiment 2 of the present invention.
Detailed Description
The present invention is illustrated by the following examples, but the present invention is not limited to these examples. Modifications to the embodiments of the invention or equivalent substitutions of parts of technical features without departing from the spirit of the invention are intended to be covered by the scope of the claims of the invention.
Example 1
As shown in fig. 1-3, a range hood for efficiently filtering oil comprises a range hood body 2 and a smoke collecting hood 3, wherein a fan system (not shown in the figure) is arranged inside the range hood body 2, and the top of the range hood body is connected with a smoke exhaust pipe. The smoke collecting hood 3 is arranged at the bottom of the smoke exhaust ventilator body 2 and is provided with a smoke inlet, a heat exchange oil net 1 is arranged at the smoke inlet, the heat exchange oil net 1 comprises a heat exchange tube group 11 for condensing the smoke and supplying the smoke to pass through, the heat exchange tube group 11 is provided with a water inlet 12 and a water outlet 13, so that the water in the heat exchange tube group 11 is heated when the smoke passes through the heat exchange tube group 11, warm water heated by the smoke is stored, and the smoke collecting hood is used for self-cleaning of the smoke exhaust ventilator and/or for household use. A plurality of bent oil smoke channels 1103 are defined by the heat exchange tube sets 11 with different cross-sectional areas, and each oil smoke channel 1103 is correspondingly provided with an air inlet 1101 and an air outlet 1102, so that the flow direction of oil smoke is bent when the oil smoke enters the oil smoke channels 1103 through the air inlets 1101, and the oil smoke path is changed and prolonged. The heat exchange tube set 11 defines an air inlet 1101 and an air outlet 1102 by bending the heat exchange tubes thereof. In the present embodiment, the cross-sectional area of the heat exchange tube group 11 along the length direction thereof from bottom to top is different in size.
The range hood of this embodiment, it is through adopting heat transfer oil net 1 to replace traditional oil net, takes place the condensation and its flow direction takes place to bend when making the oil smoke flow through heat transfer tube set 11, has prolonged the oil smoke route to the oil smoke carries out the heat exchange with the water in the heat transfer tube set 11 better, makes the temperature rise, does benefit to and reduces the oil smoke temperature, improves oil smoke separation effect, reaches the purpose of high-efficient oil strain, utilizes simultaneously to improve oil smoke heat utilization efficiency, reduces the production of energy loss and heat island effect.
As shown in fig. 2 to 4, further, the heat exchange tube group 11 includes a plurality of sub heat exchange tube groups 111 arranged at intervals in the left-right direction, a soot channel 1103 is formed in each sub heat exchange tube group 111, any two adjacent sub heat exchange tube groups 111 are communicated with each other, a gap forming an air inlet 1101 is left between the lower ends of any two adjacent sub heat exchange tube groups 111, and a gap forming an air outlet 1102 is left between the upper ends.
In this embodiment, any two adjacent sub heat exchange tube sets 111 are arranged in a staggered manner in the vertical direction, and thus each air outlet 1102 is respectively arranged in a staggered manner with two adjacent air inlets 1101, so that the structure of the heat exchange oil network 1 is more compact and the occupied space is smaller. A bent soot passage 1103 is also defined between two adjacent sub heat exchange tube sets 111, each air inlet 1101 is respectively communicated with two adjacent soot passages 1103, and each air outlet 1102 is respectively communicated with two adjacent soot passages 1103. Therefore, after entering the heat exchange tube set 11 from any air inlet 1101, the oil smoke flows towards the left and right sides under the limiting action of the inner side of the top of the heat exchange tube set 11 and is divided into two oil smoke streams (see fig. 5), wherein one oil smoke stream is bent leftwards and enters the oil smoke channel 1103 on the left side, and then flows upwards into the smoke collecting hood 3 from the air outlet 1102 on the left side; the other oil smoke bends to the right and enters the right oil smoke channel 1103, and then flows upwards into the smoke collecting hood 3 from the right air outlet 1102. In the whole process that the oil smoke flows through the heat exchange tube set 11, the oil smoke exchanges heat with the heat exchange tube set 11 for multiple times and is condensed, the oil smoke separation effect is high, and the oil smoke heat utilization rate is high.
Specifically, each sub heat exchange tube group 111 comprises a lower sub heat exchange tube group 1111 and an upper sub heat exchange tube group 1112 which are arranged in a staggered manner, the water inlet end of the upper sub heat exchange tube group 1112 is communicated with the water outlet end of the lower sub heat exchange tube group 1111, the water inlet end of the lower sub heat exchange tube group 1111 is communicated with the water outlet end of the upper sub heat exchange tube group 1112 close to the left side of the lower sub heat exchange tube group, the water inlet 12 is communicated with the water inlet end of the lower sub heat exchange tube group 1111 on the left side of the heat exchange tube group 11, and the water outlet 13 is communicated with the water outlet end of the upper sub heat exchange tube group 1112 on the right side of the heat exchange tube group 11. Cold water flows from left to right after entering the heat exchange oil pipe group 11, and the water continuously exchanges heat with oil smoke heat in the flowing process, is heated to be warm water or hot water, and finally flows out from a water outlet 13 on the right side (see fig. 6).
In addition, the connecting ends of the upper layer sub heat exchange tube group 1112 and the lower layer sub heat exchange tube group 1111 define the oil smoke channel 1103 together, so that the heat exchange oil net 1 has a double-layer structure, which is beneficial to increasing the heat exchange area; in addition, when the oil smoke passes through the bent oil smoke channel 1103, the flow direction of the oil smoke is bent, so that the oil smoke path is lengthened, the heat exchange between the oil smoke and the water in the heat exchange tube group 11 is more sufficient, and the oil filtering effect is better.
In this embodiment, the connection end specifically refers to a left half section or a right half section of the upper layer sub heat exchange tube group 1112 or the lower layer sub heat exchange tube group 1111 located at two sides of the center line in the width direction, where the left half section is a water inlet end and the right half section is a water outlet end. One part of the lampblack channel 1103 is defined by the left half section of the lower layer sub heat exchange tube group 1111 and the right half section of the adjacent upper layer sub heat exchange tube group 1112 which are arranged up and down side by side, and the other part of the lampblack channel 1103 is defined by the right half section of the lower layer sub heat exchange tube group 1111 and the left half section of the adjacent upper layer sub heat exchange tube group 1112 which are arranged up and down side by side.
More specifically, the lower sub heat exchange tube group 1111 includes a plurality of lower heat exchange tubes arranged side by side along the front-rear direction thereof, the upper sub heat exchange tube group 1112 includes a plurality of upper heat exchange tubes arranged side by side along the front-rear direction thereof, the upper heat exchange tubes and the lower heat exchange tubes are arranged in a staggered manner, the water inlet ends of the upper heat exchange tubes are communicated with the water outlet ends of the lower heat exchange tubes adjacent to the left side thereof, and the water outlet ends of the upper heat exchange tubes are communicated with the water inlet ends of the lower heat exchange tubes adjacent to the right side thereof. The connection ends of the upper heat exchange tubes and the adjacent lower heat exchange tubes arranged side by side up and down define a sub-oil smoke channel forming part of the oil smoke channel 1103 together.
Preferably, the sub heat exchange tube set 111 further includes a plurality of communicating tubes 1113, the lower heat exchange tubes are U-shaped, the upper heat exchange tubes are inverted U-shaped, two ends of the upper heat exchange tubes are respectively communicated with two adjacent lower heat exchange tubes through the communicating tubes 1113, an airflow channel for passing oil smoke is formed between any two adjacent communicating tubes 1113 in the front-rear direction, and the airflow channel is a part of the oil smoke channel 1103. From this, communicating pipe 1113's setting has realized that heat exchange tube communicates two arbitrary adjacent U-shaped lower heat exchange tubes and the heat exchange tube on the shape of falling U to guarantee that each oil smoke passageway 1103 has a plurality of airflow channel in the front and back direction, make the oil smoke distribute more evenly, through more smooth and easy, do benefit to further increase heat transfer area.
In this embodiment, a gap (see fig. 5) for oil smoke to pass through is reserved between any two adjacent lower heat exchange tubes in the front-rear direction, and a gap for oil smoke to pass through is reserved between any two adjacent upper heat exchange tubes in the front-rear direction, so that when the oil smoke is condensed, the heat exchange tube set 11 is ensured to have a high porosity, the oil smoke is more smoothly passed through, and the escape of the oil smoke heat exchange oil net 1 around is favorably reduced.
Further, a water distribution cavity 120 is arranged in the lower-layer heat exchange sub-tube group 1111 at the left side of the heat exchange tube group 11, the water distribution cavity 120 is communicated with the water inlet 12 and the water inlet end of each lower heat exchange tube at the left side, and therefore the water distribution cavity 120 is arranged in the leftmost lower-layer heat exchange sub-tube group 1111, the space utilization rate of the leftmost lower-layer heat exchange sub-tube group 1111 is improved, the structure of the heat exchange oil network 1 is more compact, and the occupied space is small. In this embodiment, the water diversion cavity 120 may be integrally formed with the water inlet 12.
In addition, a water collecting cavity 130 is arranged in the upper-layer heat exchange tube set 1112 on the right side of the heat exchange tube set 11, the water collecting cavity 130 is respectively communicated with the water outlet 13 and the water outlet end of each upper heat exchange tube on the right side, so that the water collecting cavity 130 is arranged in the rightmost upper-layer heat exchange tube set 1112, the inner space of the rightmost upper-layer heat exchange tube set 1112 is fully utilized, the structure of the heat exchange oil network 1 is more compact, and the occupied space is small. In this embodiment, the water collecting chamber 130 is communicated with the water outlet end of the heat exchange tube on the rightmost side of the heat exchange tube set 11 through the communicating tube 1113, and the water collecting chamber 130 and the water outlet 13 may be integrally formed.
As shown in fig. 1 and 3, further, the heat exchanger further comprises a water storage tank 4, a cold water pipe 5 and a hot water pipe 6, wherein the water inlet 12 is arranged at the top of the water diversion cavity 120 and extends upwards, one end of the cold water pipe 5 is inserted into the smoke collecting hood 3 and is communicated with the water inlet 12, so that the heat exchange oil net 1 can be conveniently connected with tap water through the cold water pipe 5. The water outlet 13 is arranged at the bottom of the water collecting cavity 130 and extends downwards, and two ends of the hot water pipe 6 are respectively communicated with the water outlet 13 and the water storage tank 4, so that water heated by high-temperature oil smoke can be stored in the water storage tank 4, hot water can be provided for self-cleaning and/or household use of the range hood, the utilization rate of oil smoke heat energy is improved, and the energy loss is favorably reduced.
In addition, a water pump or a control valve 61 electrically connected with the controller is arranged on the hot water pipe 6 to realize the on-off control of water delivery to the water storage tank 4. When the range hood works, the controller can control the water pump or the control valve 61 to be opened so as to convey the hot water subjected to heat exchange to the water storage tank 4 for storage; when the range hood stops working, the controller is adopted to control the water pump or the control valve 61 to be closed, the hot water is stopped being conveyed to the water storage tank 4, and cold water is prevented from entering the water storage tank 4.
Further, the heat exchange oil net 1 further comprises a right connecting plate 14 and a right connecting plate 15, the right connecting plate 15 is arranged on the right side of the heat exchange tube group 11 and is fixedly connected with the smoke collecting hood 3, and the left connecting plate 14 is arranged on the left side of the heat exchange tube group 11 and is fixedly connected with the smoke collecting hood 3. Therefore, the heat exchange oil net 1 is stably and reliably arranged at the smoke inlet of the smoke collecting hood 3.
The working principle of the heat exchange oil network 1 of the present embodiment is described below with reference to fig. 1 and fig. 5 to 6:
as shown in fig. 5, when the range hood works, the fan system exhausts high-temperature oil smoke from the smoke inlet to the smoke exhaust pipe, when the high-temperature oil smoke passes through the lower sub heat exchange tube group 1111, the high-temperature oil smoke firstly exchanges heat with water in the lower sub heat exchange tube group 1111 for the first time, enters the heat exchange tube group 11 from the air inlet 1101 and exchanges heat with the upper sub heat exchange tube group 1112 for the second time, is shunted under the limiting effect of the upper sub heat exchange tube group 1112 and enters the two oil smoke channels 1103 on both sides of the same air inlet 1101 respectively, and in the process, the oil smoke firstly exchanges heat with the water in the communicating pipe 1113, then exchanges heat with the water in the lower sub heat exchange tube group 1111, and finally enters the fan system from the air outlet 1102.
In the embodiment, the heat exchange sub-tube group 111 close to the water inlet 12 is used as a first heat exchange sub-tube group 111, and the other heat exchange sub-tube groups 111 are sequentially arranged from left to right. As shown in fig. 1 and fig. 6, when the range hood is in operation, the controller controls the water pump or the control valve 61 to be opened. Cold water enters the water diversion cavity 120 from the cold water pipe 5 and the water inlet 12, and is distributed to the water inlet end of the lower layer heat exchange tube group 1111 in the first heat exchange tube sub-group 111 through the water diversion cavity 120, the water outlet end of the lower layer heat exchange tube group 1111 in the first heat exchange tube sub-group 111 enters the water inlet end of the upper layer heat exchange tube group 1112 in the first heat exchange tube sub-group 111 through the communication pipe 1113, the water outlet end of the upper layer heat exchange tube group 1112 in the first heat exchange tube sub-group 111 enters the water inlet end of the lower layer heat exchange tube group 1111 in the second heat exchange tube sub-group 111 through the communication pipe 1113, and so on, until the water flows through the water outlet end of the lower layer heat exchange tube group 1111 in the last heat exchange tube sub-group 111 and the communication pipe 1113 into the water collection cavity 130, and finally, the water flows into the water storage tank 4 from the water outlet 13 and the hot water pipe 6 in turn.
Therefore, the range hood of the embodiment has the advantages that the structure of the heat exchange oil net 1 is compact, the occupied space is small, the flow direction of oil smoke is bent for multiple times when the oil smoke flows through the heat exchange tube set 11, the side length of a path of the oil smoke passing through the heat exchange tube set 11 is long, the oil smoke can better exchange heat with water in the heat exchange tube set 11 for multiple times, the oil smoke condensation effect is good, and the oil smoke separation effect is favorably improved. In addition, on the other hand, water heated by oil smoke heat is stored in the water storage tank 4, so that self-cleaning and/or household hot water supply for the range hood is facilitated, the oil smoke heat energy utilization rate is high, and reduction of energy loss and generation of a heat island effect are facilitated.
In other embodiments, two arbitrary adjacent lower heat exchange tubes in the front-back direction can be designed to mutually closely abut, and two arbitrary adjacent lower heat exchange tubes in the front-back direction mutually closely abut, so can avoid the oil smoke from directly entering into the gas outlet 1102 between two adjacent lower heat exchange tubes in the front-back direction, and avoid the oil smoke from directly discharging between two adjacent lower heat exchange tubes in the front-back direction, thereby guarantee the path length of the oil smoke through the heat exchange tube group 11, make the oil smoke and the heat exchange efficiency of the heat exchange tube group 11 higher.
Example 2
As shown in fig. 7, the flue gas waste heat utilization system of this embodiment includes a water heater 7 and a warm water pipe 8, and further includes the range hood as described in embodiment 1, and the warm water inlet of the water heater 7 is communicated with the water storage tank 4 through the warm water pipe 8, so that the water that is subjected to heat exchange by the heat exchange pipe set 11 is stored in the water storage tank 4 and is used as an initial water source of the water heater, thereby reducing the consumption of the water heater 7 on energy and being beneficial to energy saving. In addition, the warm water pipe 8 can be communicated with a water tap of a household vegetable washing basin, a hand washing basin and the like, so that warm water can be conveniently provided for washing vegetables and hands.
Further, still include main cold water pipe 91, coil pipe 92 and connecting pipe 93, main cold water pipe 91 is linked together with cold water pipe 5, storage water tank 4, water heater 7 respectively, and coil pipe 92 coils and is linked together with main cold water pipe 91, connecting pipe 93 respectively at the surface of the pipe of discharging fume and its both ends, and the other end and the storage water tank 4 of connecting pipe 93 are linked together. Therefore, the coil 92 is coiled on the outer surface of the smoke exhaust pipe, so that secondary heat exchange between the oil smoke and the water is realized, condensation and backflow of oil in the oil smoke are facilitated, and the escape of the oil smoke is reduced.
Therefore, the flue gas waste heat utilization system of the embodiment has high oil smoke heat utilization rate and good oil filtering effect, can provide warm water for the water heater 7, washing vegetables and washing hands, and is favorable for saving energy.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (10)
1. A range hood capable of efficiently filtering oil comprises a range hood body (2) and a smoke collecting hood (3), wherein a smoke inlet is formed in the smoke collecting hood (3), the range hood is characterized in that a heat exchange oil net (1) is arranged at the smoke inlet, the heat exchange oil net (1) comprises a heat exchange pipe set (11) used for condensing oil smoke and allowing the oil smoke to pass through, the heat exchange pipe set (11) is provided with a water inlet (12) and a water outlet (13), a plurality of bent oil smoke channels (1103) are defined by the heat exchange pipe set (11) with different cross sectional areas, each oil smoke channel (1103) is correspondingly provided with an air inlet (1101) and an air outlet (1102), and the heat exchange pipe set (11) defines the air inlet (1101) and the air outlet (1102) by bending the heat exchange pipe thereof;
the heat exchange tube group (11) comprises a plurality of sub heat exchange tube groups (111) which are arranged at intervals along the left-right direction, the lampblack channel (1103) is formed in each sub heat exchange tube group (111), any two adjacent sub heat exchange tube groups (111) are communicated with each other, a gap for forming the air inlet (1101) is reserved between the lower ends of any two adjacent sub heat exchange tube groups (111), and a gap for forming the air outlet (1102) is reserved between the upper ends of any two adjacent sub heat exchange tube groups (111);
and any two adjacent sub heat exchange tube sets (111) are arranged in a staggered manner in the vertical direction, so that each air inlet (1101) is arranged in a staggered manner with two adjacent air outlets (1102).
2. The range hood for filtering oil efficiently according to claim 1, wherein the two adjacent sub heat exchange tube sets (111) define therebetween the bent oil smoke channel (1103), each of the air inlets (1101) is respectively communicated with two adjacent oil smoke channels (1103), and each of the air outlets (1102) is respectively communicated with two adjacent oil smoke channels (1103).
3. The range hood for efficiently filtering oil according to claim 1, wherein each of the sub heat exchange tube sets (111) comprises a lower sub heat exchange tube set (1111) and an upper sub heat exchange tube set (1112) which are arranged in a staggered manner, the water inlet end of the upper sub heat exchange tube set (1112) is communicated with the water outlet end of the lower sub heat exchange tube set (1111), the water inlet end of the lower sub heat exchange tube set (1111) is communicated with the water outlet end of the upper sub heat exchange tube set (1112) close to the left side thereof, the water inlet (12) is communicated with the water inlet end of the lower sub heat exchange tube set (1111) on the left side, and the water outlet (13) is communicated with the water outlet end of the upper sub heat exchange tube set (1112) on the right side;
the connection ends of the upper layer sub heat exchange tube set (1112) and the lower layer sub heat exchange tube set (1111) jointly define the lampblack channel (1103).
4. The range hood for filtering oil efficiently according to claim 3, wherein the lower sub heat exchange tube group (1111) comprises a plurality of lower heat exchange tubes arranged side by side along the front-rear direction thereof, the upper sub heat exchange tube group (1112) comprises a plurality of upper heat exchange tubes arranged side by side along the front-rear direction thereof, the upper heat exchange tubes and the lower heat exchange tubes are arranged in a staggered manner, the water inlet ends of the upper heat exchange tubes are communicated with the water outlet ends of the lower heat exchange tubes close to the left side thereof, and the water outlet ends of the upper heat exchange tubes are communicated with the water inlet ends of the lower heat exchange tubes close to the right side thereof; the connection ends of the upper heat exchange tubes and the adjacent lower heat exchange tubes jointly define a sub-oil smoke channel forming part of the oil smoke channel (1103).
5. The range hood for filtering oil efficiently according to claim 4, wherein the sub heat exchange tube set (111) further comprises a plurality of communicating tubes (1113), the lower heat exchange tube is "U" shaped, the upper heat exchange tube is inverted "U" shaped, two ends of the upper heat exchange tube are respectively communicated with two adjacent lower heat exchange tubes through the communicating tubes (1113), an airflow channel for passing oil smoke is formed between any two adjacent communicating tubes (1113) in the front-rear direction, and the airflow channel is part of the oil smoke channel (1103).
6. The range hood for filtering oil efficiently according to claim 5, wherein any two adjacent lower heat exchange tubes in the front-rear direction are in close contact with each other or have a gap for oil smoke to pass through, and any two adjacent upper heat exchange tubes in the front-rear direction are in close contact with each other or have a gap for oil smoke to pass through.
7. The range hood for filtering oil efficiently according to claim 5, wherein a water diversion cavity (120) is arranged in the lower layer heat exchange tube group (1111) on the left side, and the water diversion cavity (120) is respectively communicated with the water inlet (12) and the water inlet end of each lower heat exchange tube on the left side; a water collecting cavity (130) is arranged in the upper-layer heat exchange tube group (1112) on the right side, and the water collecting cavity (130) is respectively communicated with the water outlet (13) and the water outlet end of each upper heat exchange tube on the right side.
8. The range hood capable of filtering oil efficiently according to claim 7, further comprising a water storage tank (4), a cold water pipe (5) and a hot water pipe (6), wherein the water inlet (12) is disposed at the top of the water diversion chamber (120) and extends upwards, one end of the cold water pipe (5) is inserted into the smoke collection hood (3) and is communicated with the water inlet (12), the water outlet (13) is disposed at the bottom of the water collection chamber (130) and extends downwards, and two ends of the hot water pipe (6) are respectively communicated with the water outlet (13) and the water storage tank (4).
9. A high efficiency oil filtering range hood according to any one of claims 1-8, characterized in that the heat exchange oil net (1) further comprises a left connection plate (14) and a right connection plate (15), the right connection plate (15) is arranged at the right side of the heat exchange tube set (11) and is fixedly connected with the smoke collecting hood (3), the left connection plate (14) is arranged at the left side of the heat exchange tube set (11) and is fixedly connected with the smoke collecting hood (3).
10. A flue gas waste heat utilization system, comprising a water heater (7) and a warm water pipe (8), characterized by further comprising the range hood according to any one of claims 1-9, wherein a warm water inlet of the water heater (7) is communicated with the water outlet (13) through the warm water pipe (8).
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| CN2019108171025 | 2019-08-30 | ||
| CN201910817102 | 2019-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112503594A (en) * | 2020-11-02 | 2021-03-16 | 上海湃达建筑材料有限公司 | Integrated kitchen of waste heat recovery |
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