Smoke heat recovery device for hotel

Abstract

The utility model discloses a smoke heat recovery device for hotels, which comprises a gas furnace, a smoke exhaust pipe, a circulating water pump, a heat recoverer and water equipment, the smoke exhaust pipe is mounted at a smoke exhaust port of the gas furnace, and the smoke exhaust pipe leads to the heat recoverer; the heat recoverer comprises a box body, a spraying pipe and a water inlet pipe, the spraying pipe is arranged in the box body and connected with the water inlet pipe, a circulating water pump is arranged on the water inlet pipe, and a water outlet pipe is connected with water consuming equipment; a smoke inlet, a smoke outlet and a water outlet are formed in the box body, the smoke inlet is connected with the smoke exhaust pipe, smoke generated when the gas furnace works enters the heat recoverer through the smoke exhaust pipe, the spraying pipe continuously sprays water in the box body, the smoke is discharged from the smoke outlet after being cooled by cooling water sprayed by the spraying pipe, and the cooling water absorbs heat and is heated to form hot water which is discharged from the water outlet. And the water enters the water utilization equipment to be used, so that the heat is reasonably applied.

Description

Technical Field

[0001] The utility model relates to the technical field of heat recovery, and particularly relates to a flue gas heat recovery device for hotels. Background Art

[0002] At present, during the operation of large hotels, a large amount of high-temperature flue gas is generated. The flue gas is usually directly discharged after purification, so that a large amount of heat in the flue gas cannot be processed and reused, resulting in waste of energy. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this reason, an embodiment of the utility model provides a flue gas heat recovery device for hotels, which includes a gas furnace, a smoke exhaust pipe, a circulating water pump, a heat recovery device, and a water-using device. The smoke exhaust port of the gas furnace is installed with the smoke exhaust pipe, and the smoke exhaust pipe leads to the heat recovery device; the heat recovery device includes a box body, a spray pipe, and a water inlet pipe. The spray pipe is installed in the box body, the spray pipe is connected to the water inlet pipe, a circulating water pump is installed on the water inlet pipe, and the water outlet pipe is connected to the water-using device; the box body is provided with a smoke inlet, a smoke outlet, and a drain outlet. The smoke inlet is connected to the smoke exhaust pipe. After the flue gas is cooled by the cooling water sprayed out by the spray pipe, it is discharged from the smoke outlet, and the heated cooling water is discharged through the drain outlet; the circulating water port of the water-using device is connected to the water inlet pipe, and the inlet of the water-using device is connected to the drain outlet.

[0004] The utility model has at least the following beneficial effects:

[0005] When the gas furnace works, the flue gas generated enters the heat recovery device through the smoke exhaust pipe. The spray pipe continuously sprays water in the box body. After the flue gas is cooled by the cooling water sprayed out by the spray pipe, it is discharged from the smoke outlet. After the cooling water absorbs heat and is heated into hot water, it is discharged through the drain outlet and enters the water-using device for use, so that the heat is reasonably applied.

[0006] According to some embodiments of the utility model, the spray pipe sequentially includes a first pipe frame, a second pipe frame, and a third pipe frame from outside to inside. A plurality of spray nozzles are arranged on the first pipe frame, the second pipe frame, and the third pipe frame. The first pipe frame and the second pipe frame, and the second pipe frame and the third pipe frame are connected by a communicating pipe. An inlet pipe is installed on the first pipe frame, and the inlet pipe is connected to the water inlet pipe.

[0007] According to some embodiments of the utility model, a solenoid valve is installed on the drain outlet.

[0008] According to some embodiments of the utility model, a water level gauge is installed on the box wall of the box body.

[0009] According to some embodiments of the present utility model, a filter screen is installed inside the exhaust pipe.

[0010] According to some embodiments of the present utility model, the water-using device is a geothermal pipe, the water outlet of the geothermal pipe is connected to the water inlet pipe, and the water inlet of the geothermal pipe is connected to the drain outlet.

[0011] According to some embodiments of the present utility model, the water-using device is a water heater, the circulating water outlet of the water heater is connected to the water inlet pipe, and the water inlet of the water heater is connected to the drain outlet.

[0012] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0014] Figure 1 is the overall schematic diagram of the embodiment of the present utility model;

[0015] Figure 2 is the schematic diagram of the spray pipe of the embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0017] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0018] In the description of the present utility model, the meaning of "a plurality" is more than two, and understandings such as greater than, less than, exceeding, etc. do not include the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0019] In the description of the present utility model, unless otherwise clearly defined, terms such as "setting", "installation", and "connection" should be understood in a broad sense, and those skilled in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0020] Referring to Figure 1 , a flue gas heat recovery device for hotels, which includes a gas furnace 100, a smoke exhaust pipe 200, a circulating water pump 300, a heat recovery device 400, and a water-using device 500. The smoke exhaust port of the gas furnace 100 is installed with the smoke exhaust pipe 200, and the smoke exhaust pipe 200 leads to the heat recovery device 400; the heat recovery device 400 includes a box body 410, a spray pipe 420, and a water inlet pipe 430. The spray pipe 420 is installed in the box body 410, and the spray pipe 420 is connected to the water inlet pipe 430. A circulating water pump 300 is installed on the water inlet pipe 430, and the outlet pipe is connected to the water-using device 500; the box body 410 is provided with a smoke inlet 411, a smoke outlet 412, and a drain port 413. The smoke inlet 411 is connected to the smoke exhaust pipe 200. After the flue gas is cooled by the cooling water sprayed out by the spray pipe 420, it is discharged from the smoke outlet 412, and the heated cooling water is discharged through the drain port 413; the circulating water port of the water-using device 500 is connected to the water inlet pipe 430, and the inlet of the water-using device 500 is connected to the drain port 413.

[0021] When the gas furnace 100 is working, the flue gas generated enters the heat recovery device 400 through the smoke exhaust pipe 200. The spray pipe 420 continuously sprays water in the box body 410. After the flue gas is cooled by the cooling water sprayed out by the spray pipe 420, it is discharged from the smoke outlet 412. After the cooling water absorbs heat and is heated into hot water, it is discharged through the drain port 413 and enters the water-using device 500 for use, so that the heat is reasonably utilized.

[0022] Referring to Figure 2 As shown, the spray pipe 420 is fixed to the top of the box body 410 through a hanger. The spray pipe 420 successively includes a first pipe frame 421, a second pipe frame 422, and a third pipe frame 423 from outside to inside. A plurality of spray nozzles 424 are arranged on the first pipe frame 421, the second pipe frame 422, and the third pipe frame 423. The first pipe frame 421 and the second pipe frame 422, and the second pipe frame 422 and the third pipe frame 423 are connected through a communicating pipe 425. An inlet pipe 426 is installed on the first pipe frame 421, and the inlet pipe 426 is connected to the water inlet pipe 430.

[0023] To facilitate drainage, a solenoid valve 414 is installed on the drain port 413, and the drainage is controlled by the solenoid valve 414.

[0024] A water level gauge 415 is installed on the box wall of the box body 410, and the water level in the box body 410 is controlled by the water level gauge 415 to avoid the water level being too high and overflowing from the smoke outlet 412.

[0025] To avoid smoke pollution of the air, a filter screen 210 is installed in the exhaust pipe 200.

[0026] In the first implementation manner, the water-using device 500 is a geothermal pipe. The geothermal pipe is buried under the floor. The water outlet of the geothermal pipe is connected to the water inlet pipe 430, and the water inlet of the geothermal pipe is connected to the drain outlet 413 to increase the indoor temperature through the geothermal pipe.

[0027] In the second implementation manner, the water-using device 500 is a water heater. The circulating water outlet of the water heater is connected to the water inlet pipe 430, and the water inlet of the water heater is connected to the drain outlet 413 to preheat the water in advance and reduce the power consumption of the water heater during use.

[0028] In the description of this specification, the description with reference to terms such as "some embodiments" or "it is conceivable that" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0029] The embodiments of the present invention have been described in detail above with reference to the drawings. However, the present invention is not limited to the above embodiments. Various changes can be made without departing from the gist of the present invention within the knowledge scope of those of ordinary skill in the art.

Claims

1. A flue gas heat recovery device for a hotel, characterized in that: It comprises a gas furnace (100), a smoke exhaust pipe (200), a circulating water pump (300), a heat recovery device (400), and a water-using device (500); the smoke exhaust pipe (200) is installed at the smoke exhaust port of the gas furnace (100), and the smoke exhaust pipe (200) leads to the heat recovery device (400); The heat recovery device (400) comprises a housing (410), a spray pipe (420), and a water inlet pipe (430); the housing (410) is filled with the spray pipe (420); the spray pipe (420) is connected to the water inlet pipe (430); and a circulating water pump (300) is installed on the water inlet pipe (430); The box body (410) is provided with a smoke inlet (411), a smoke outlet (412), and a water outlet (413); the smoke inlet (411) is connected to the smoke exhaust pipe (200); smoke is cooled by cooling water sprayed out by the spray pipe (420) and then discharged from the smoke outlet (412); the heated cooling water is discharged through the water outlet (413); The circulating water outlet of the water-using device (500) is connected to the water inlet pipe (430), and the inlet of the water-using device (500) is connected to the drain outlet (413).

2. A smoke heat recovery device for hotels according to claim 1, characterized in that: The spray pipe (420) comprises, from outside to inside, a first pipe frame (421), a second pipe frame (422), and a third pipe frame (423); a plurality of spray nozzles (424) are arranged on the first pipe frame (421), the second pipe frame (422), and the third pipe frame (423); the first pipe frame (421) and the second pipe frame (422), as well as the second pipe frame (422) and the third pipe frame (423) are connected via a connecting pipe (425); an inlet pipe (426) is installed on the first pipe frame (421); and the inlet pipe (426) is connected to the water inlet pipe (430).

3. A smoke heat recovery device for hotels according to claim 1, characterized in that: The drain port (413) is provided with a solenoid valve (414).

4. The hotel flue gas heat recovery device according to claim 1, characterized in that: A water level meter (415) is installed on the box wall of the box body (410).

5. The hotel flue gas heat recovery device according to claim 1, characterized in that: The smoke exhaust pipe (200) is provided with a filter screen (210).

6. The hotel flue gas heat recovery device according to claim 1, characterized in that: The water-using equipment (500) is a geothermal pipe, the water outlet of the geothermal pipe is connected to the water inlet pipe (430), and the water inlet of the geothermal pipe is connected to the drain outlet (413).

7. The hotel flue gas heat recovery device according to claim 1, characterized in that: The water-using device (500) is a water heater, the circulating water inlet of the water heater is connected to the water inlet pipe (430), and the water inlet of the water heater is connected to the drain outlet (413).

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