CN220205829U - Waste heat recovery big kitchen range - Google Patents

Abstract

The utility model relates to a waste heat recovery big cooker, which comprises a cooker body, a cooker body and a waste water collecting tank which are arranged at the front part of the cooker body, and a flue arranged at the rear part of the cooker body; the utility model also comprises a waste hot water heat exchange device and a hot flue gas heat exchange device, wherein the waste hot water heat exchange device is arranged below the corresponding waste water collecting tank at the front part of the stove body, and the hot flue gas heat exchange device is arranged in the flue. The tap water temperature heated by the double heat exchange can reach more than 60 ℃ and even 80-90 ℃, and the tap water can be directly used for water supplementing or other purposes. The design of the S-shaped channel improves the utilization rate of waste hot water and waste flue gas, and further improves the heat exchange efficiency.

Description

Waste heat recovery big kitchen range

Technical Field

The utility model relates to the technical field of large cookers, in particular to a waste heat recovery large cooker for sweet potato vermicelli.

Background

The existing big pot and stove for sweet potato vermicelli is used for boiling water and continuously adding sweet potato vermicelli, water is continuously replenished during the water replenishing period, a part of water overflows into a waste water collecting tank after water replenishing, and then directly flows to the ground through a water outlet at the lower part of the waste water tank (overflowed water is called hot waste water), so that waste is caused; therefore, the stove needs to consume a lot of fuel gas, and the daily gas consumption of the big pot stove for producing ten thousands of jin of vermicelli is more than 120 kg, the thermal efficiency is between 45% and 55%, i.e. the energy consumption is high and the thermal efficiency is low.

Disclosure of Invention

The utility model aims to overcome the defects of high energy consumption, low heat efficiency and the like in the prior art in the background art, and provides a waste heat recovery large cooker which is provided with a waste hot water heat exchange device and a hot flue gas heat exchange device, so that the energy consumption is reduced and the heat efficiency is improved.

The utility model provides a big kitchen of waste heat recovery, includes the kitchen body, sets up in the anterior pot body of kitchen and waste water collecting vat and the flue of setting at kitchen body rear portion, big kitchen of waste heat recovery still includes waste hot water heat transfer device and hot flue gas heat transfer device, and waste hot water heat transfer device sets up in the anterior below that corresponds the waste water collecting vat of kitchen body, and hot flue gas heat transfer device sets up in the flue.

The waste hot water heat exchange device comprises a hot water recovery tank, a first spiral pipe is arranged in the hot water recovery tank, one end of the first spiral pipe is communicated with clean tap water outside through a first tap water inlet, and the other end of the first spiral pipe is communicated with the hot flue gas heat exchange device. The top of one side of the hot water recovery tank is connected with a water outlet at the bottom of the waste water collection tank through a waste hot water inlet, and the bottom of the other side of the hot water recovery tank is provided with a waste water outlet; the first tap water inlet and the waste hot water inlet are arranged in a left-right direction, so that the waste hot water and tap water form opposite flowing directions.

The hot flue gas heat exchange device comprises a second spiral pipe which is arranged in the flue. One end of the second spiral pipe is communicated with the first spiral pipe through a second tap water inlet at the top of the flue, and the other end of the second spiral pipe penetrates through the bottom wall of the flue and extends out of the flue. The bottom of the flue is provided with a hot flue gas inlet, the top of the flue is provided with a hot flue gas outlet communicated with the interior of the flue, and the hot flue gas outlet is provided with an exhaust fan.

In one embodiment, the number of first coils is at least one, at least one first coil

The head and the tail are sequentially communicated and transversely uniformly distributed in the hot water recovery tank at intervals, one of the two first spiral pipes at the left end and the right end is communicated with clean outside tap water through a first tap water inlet, the other first spiral pipe is communicated with a second tap water inlet, first partition plates are arranged in the hot water recovery tank correspondingly between every two adjacent first spiral pipes, the two adjacent first partition plates are distributed in a staggered mode one by one, and the front side and the rear side of each first partition plate are sealed with the wall of the hot water recovery tank, so that the hot water recovery tank, the first spiral pipes and the first partition plates are matched to form a first S-shaped channel for waste hot water to flow.

In one embodiment, the number of the second spiral pipes is at least one, the at least one second spiral pipe is communicated end to end sequentially and is longitudinally and uniformly distributed in the flue at intervals, the second spiral pipe at the top end is communicated with the first spiral pipe through a second tap water inlet at the top of the flue, the second spiral pipe at the bottom end penetrates through the bottom wall of the flue and extends out of the flue, a second partition plate is arranged between every two adjacent second spiral pipes in the flue, the two adjacent second partition plates are distributed in a left-right staggered mode, and the front side and the rear side of each second partition plate are sealed with the wall of the flue, so that the flue and the second spiral pipe are matched with the second partition plate to form a second S-shaped channel for heat supply flue gas flow.

In one embodiment, the first and second coils are each formed by winding at least one tube.

In one embodiment, the first spiral tube and the second spiral tube are both wound into two tubes.

In one embodiment, the pan body is a fin pan body.

In one embodiment, the burner body is a burner body with a reflector.

In one embodiment, the number of first coils is 3.

In one embodiment, the number of second coils is 3.

The utility model has the advantages and beneficial effects that:

the utility model is additionally provided with the waste hot water heat exchange device, the device exchanges heat with clean tap water by utilizing hot water (namely waste hot water) collected in the waste water collecting tank, and the first tap water inlet and the waste hot water inlet are arranged in a left-right direction to form countercurrent flow to heat the clean tap water for the first time; in addition, the utility model is additionally provided with a hot flue gas heat exchange device, the tap water after primary heating is secondarily heated by utilizing hot flue gas in the flue of the large cooker, and the hot flue gas inlet is arranged at the bottom of the flue, and the second tap water inlet is arranged at the top of the flue, so that countercurrent heat exchange is realized; the tap water temperature after double heat exchange can reach above 60 ℃ and even 80-90 ℃, and the tap water can be directly used for water supplementing or other purposes.

According to the utility model, the first S-shaped channel is arranged one above the other to form the heat supply waste water flow, and the second S-shaped channel is arranged one left and one right to form the heat supply smoke flow, so that the utilization rate of waste hot water and waste smoke is improved by the design of the S-shaped channel, and the heat exchange efficiency is further improved.

Besides the 2 points, the utility model adopts a fin pan and a reflector, and the exhaust fan is positioned at the top of the flue to exhaust upwards, thereby achieving the effect of energy conservation, and the heat efficiency is up to more than 75 percent.

When the sweet potato chips are boiled, water is supplemented in two hundred to three hundred kilograms per hour, the running water temperature in winter in the north is generally about fifteen degrees, and the water supplementing heat is 15000 kilocalories according to the water supplementing of two hundred and fifty centimeters per hour of the preheated water temperature of 75 ℃, which is equivalent to two kilograms of fuel gas with seventy-five percent of heat efficiency. A common stove with fifty percent of heat efficiency can meet the same requirement by 15 kg per hour, and a seventy-five percent energy-saving big stove can meet the same requirement by only 10 kg. The water temperature in winter in the north is about fifteen degrees, and the water replenishing heat is 22500 kilocalories according to ninety degrees of the preheated water temperature and three hundred centimeters of water replenishing per hour, which is equivalent to three kilograms of fuel gas with seventy-five percent of heat efficiency. Thus, the same effect of 15 kg consumption can be achieved when 7-8 kg of fuel gas is actually consumed. The water supplementing is carried out at two hundred to three hundred kilograms per hour, the running water temperature in winter in the north is generally about fifteen degrees, and the water supplementing heat is 15000 kilocalories per hour according to the preheating water temperature of 75 degrees and the water supplementing heat is equivalent to three kilograms of fuel gas with fifty percent of heat efficiency. The water temperature in winter in the north is about fifteen degrees, and the water replenishing heat is 22500 kilocalories according to the water temperature for preheating of ninety degrees and the water replenishing of three hundred centimeters per hour, which is equivalent to five kilograms of fuel gas with fifty percent of heat efficiency. Therefore, the utility model can save twenty to thirty percent of fuel gas by only utilizing one heat exchange of the waste hot water.

Drawings

Fig. 1 is a front view of the present utility model.

Fig. 2 is a top view of the present utility model.

Fig. 3 is a schematic structural view of the waste hot water heat exchange device and the hot flue gas heat exchange device of the present utility model.

FIG. 4 is a schematic view of the first and second coils of the present utility model at an angle. (the first spiral tube and the second spiral tube are identical in structure)

FIG. 5 is a schematic view of another angular configuration of the first and second coils of the present utility model.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed" on another element, it can be directly disposed or connected to the other element or intervening elements may also be present. The terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Example 1

Referring to fig. 1 to 5, a waste heat recovery big cooker includes a cooker body 1, a cooker body 2 and a waste water collecting tank 3 disposed at the front of the cooker body 1, and a flue 4 disposed at the rear of the cooker body 1. The utility model also comprises a waste hot water heat exchange device 5 and a hot flue gas heat exchange device 6. The waste hot water heat exchange device 5 is arranged below the corresponding waste water collecting tank 3 at the front part of the stove body 1, and the hot flue gas heat exchange device 6 is arranged in the flue 4.

As shown in fig. 1 and 3, the hot-water heat exchanging device 5 includes a hot-water recovery tank 51, and a first spiral pipe 52 is provided in the hot-water recovery tank 51. One end of the first spiral pipe 52 is communicated with external clean tap water through a first tap water inlet 53, and the other end is communicated with the hot flue gas heat exchange device 6. The top of one side of the hot water recovery tank 51 is connected with the bottom water outlet of the waste water collection tank 3 through a waste hot water inlet 511, and the bottom of the other side is provided with a waste water outlet 512; and the first tap water inlet 53 and the waste hot water inlet 511 are disposed in a left-right direction such that the waste hot water and tap water form an opposite flow direction.

As shown in fig. 3, the hot flue gas heat exchange device 6 comprises a second spiral pipe 61, and the second spiral pipe 61 is arranged in the flue 4. One end of the second spiral pipe 61 is communicated with the first spiral pipe 52 through a second tap water inlet 62 at the top of the flue 4, and the other end of the second spiral pipe penetrates through the bottom wall of the flue 4 and extends out of the flue 4. The bottom of the flue 4 is provided with a hot flue gas inlet 41 communicated with the interior of the flue 4, the top of the flue 4 is provided with a hot flue gas outlet 42 communicated with the interior of the flue 4, and an exhaust fan 43 is arranged at the hot flue gas outlet 42.

Specifically, as shown in FIG. 3, the number of the first spiral pipes 52 is 3, and the number of the 3 first spiral pipes 52 is set in the order of head and tail

And are communicated with each other and are distributed in the hot water recovery tank 51 at uniform intervals in the transverse direction, one of the two first spiral pipes 52 at the left and right ends (i.e., the rightmost first spiral pipe in fig. 3) is communicated with the outside clean tap water through the first tap water inlet 53, and the other first spiral pipe 52 (i.e., the leftmost first spiral pipe in fig. 3) is communicated with the second tap water inlet 62. The hot water recovery tank 51 is provided with first partition plates 54 between every two adjacent first spiral pipes 52, the two adjacent first partition plates 54 are staggered up and down, and the front side and the rear side of each first partition plate 54 are sealed with the wall of the hot water recovery tank 51, so that the hot water recovery tank 51, the first spiral pipes 52 and the first partition plates 54 form a first S-shaped channel 55 for waste hot water to flow.

As shown in fig. 3, the number of the second spiral pipes 61 is 3, and the 3 second spiral pipes 61 are sequentially communicated end to end and longitudinally and uniformly distributed in the flue 4 at intervals. The topmost second spiral tube 61 is communicated with the first spiral tube 52 through a second tap water inlet 62 at the top of the flue 4, and the bottommost second spiral tube 61 extends out of the flue 4 through the bottom wall of the flue 4. The second partition plates 63 are arranged between every two adjacent second spiral pipes 61 in the flue 4 correspondingly, the two adjacent second partition plates 63 are distributed in a left-right staggered mode, and the front side and the rear side of each second partition plate 63 are sealed with the wall of the flue 4, so that the flue 4 and the second spiral pipes 61 form a second S-shaped channel 64 to supply heat and flow smoke in cooperation with the second partition plates 63.

As shown in fig. 4 and 5, in the present embodiment 1, both the first spiral pipe 52 and the second spiral pipe 61 are of a two-pipe wound type.

Wherein, the pan body 2 is a fin pan body. The stove body 1 is a stove body with a reflector.

The working principle and the working process of the utility model

In fig. 3, double-line arrows indicate waste heat water flow direction, single-line arrows indicate clean tap water flow direction, and three-line arrows indicate hot smoke flow direction.

Referring to fig. 1 and 3, the waste hot water overflowed from the pot 2 flows in an S-shape in the first S-shaped channel 55 in the hot water recovery tank 51 sequentially through the waste water collection tank 3, the water outlet at the lower part of the waste water collection tank 3, and the waste hot water inlet 511, and finally is discharged from the waste water outlet 512 at the bottom of the hot water recovery tank 51, and the flowing direction is from left to right; clean tap water sequentially enters the hot flue gas heat exchange device 6 through a first tap water inlet 53 on the right side, a plurality of first spiral pipes 52 and then through a second tap water inlet 53; the clean tap water and the hot waste water exchange heat in a countercurrent way so that the tap water can be heated for the first time.

As shown in fig. 3, the hot flue gas generated in the production process of the present utility model flows in an S-shape in the second S-shaped channel 64 in the flue through the hot flue gas inlet 41 at the bottom of the flue 4 in sequence, and then is discharged through the exhaust fan 43 through the hot flue gas outlet 42 at the top of the flue 4 (i.e. the flow direction from bottom to top); tap water after the first heating is sequentially discharged out of the flue 4 (i.e. the flow direction from top to bottom) through a second tap water inlet 62 at the top of the flue 4, a plurality of second spiral pipes 61 and then the bottom of the flue 4; the hot flue gas and the tap water after the first heating are subjected to countercurrent heat exchange so that the tap water can be heated for the second time, and the temperature of the tap water after the heating can reach more than 60 ℃ and even 80-90 ℃.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The embodiments of the present utility model are merely described in terms of preferred embodiments of the present utility model, and are not intended to limit the spirit and scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope of the present utility model, and the technical content of the present utility model as claimed is fully described in the claims.

Claims (9)

1. The waste heat recovery big kitchen range comprises a kitchen range body, a pot body, a waste water collecting tank and a flue, wherein the pot body and the waste water collecting tank are arranged at the front part of the kitchen range body, and the flue is arranged at the rear part of the kitchen range body;

the waste hot water heat exchange device comprises a hot water recovery tank, a first spiral pipe is arranged in the hot water recovery tank, one end of the first spiral pipe is communicated with clean external tap water through a first tap water inlet, the other end of the first spiral pipe is communicated with the hot flue gas heat exchange device, the top of one side of the hot water recovery tank is connected with a bottom water outlet of the waste water collection tank through the waste hot water inlet, the bottom of the other side of the hot water recovery tank is provided with a waste water outlet, and the first tap water inlet and the waste hot water inlet are arranged in a left-right direction, so that waste hot water and tap water form opposite flowing directions;

the hot flue gas heat exchange device comprises a second spiral pipe, the second spiral pipe is arranged in the flue, one end of the second spiral pipe is communicated with the first spiral pipe through a second tap water inlet at the top of the flue, the other end of the second spiral pipe penetrates through the bottom wall of the flue to extend out of the flue, the bottom of the flue is provided with a hot flue gas inlet communicated with the interior of the flue, the top of the flue is provided with a hot flue gas outlet communicated with the interior of the flue, and an exhaust fan is arranged at the hot flue gas outlet.

2. The waste heat recovery big cooker according to claim 1, wherein the number of the first spiral pipes is at least one, the at least one first spiral pipe is sequentially communicated end to end and is transversely and uniformly distributed in the hot water recovery tank at intervals, one of the two first spiral pipes at the left and right ends is communicated with clean outside tap water through a first tap water inlet, the other first spiral pipe is communicated with a second tap water inlet, a first partition plate is arranged in the hot water recovery tank corresponding to between every two adjacent first spiral pipes, the adjacent two first partition plates are staggered up and down, and the front side and the rear side of each first partition plate are sealed with the wall of the hot water recovery tank, so that the hot water recovery tank, the first spiral pipes and the first partition plates are matched to form a first S-shaped channel for waste hot water to flow.

3. The waste heat recovery big cooker according to claim 1, wherein the number of the second spiral pipes is at least one, the at least one second spiral pipe is communicated end to end and is longitudinally and uniformly distributed in the flue at intervals, the second spiral pipe at the top end is communicated with the first spiral pipe through a second tap water inlet at the top of the flue, the second spiral pipe at the bottom end penetrates through the bottom wall of the flue and extends out of the flue, a second partition plate is arranged in the flue corresponding to every two adjacent second spiral pipes, the two adjacent second partition plates are distributed in a left-right staggered mode, and the front side and the rear side of the second partition plates are sealed with the wall of the flue, so that the flue and the second spiral pipes form a second S-shaped channel for heat supply flue gas flow in cooperation with the second partition plates.

4. The heat recovery macro-cooker of claim 1, wherein the first spiral tube and the second spiral tube are each at least one tube wound.

5. The heat recovery macro-cooker of claim 4, wherein the first spiral tube and the second spiral tube are both two-tube wound versions.

6. The large waste heat recovery cooktop of claim 1, wherein the cooktop is a fin cooktop.

7. The waste heat recovery cauldron stove according to claim 1, wherein the stove body is a stove body with a reflector.

8. The heat recovery macro-cooker of claim 2, wherein the number of first spiral pipes is 3.

9. The heat recovery macro-cooker of claim 3, wherein the number of second spiral pipes is 3.