Waste heat hot water heating stove

Abstract

The invention relates to a waste heat hot water heating stove, in particular to a waste heat hot water heating stove which can be used for families, restaurants and enterprises by collecting waste heat of a cooking bench to boil water or provide warm air, and adopts the technical scheme that a heat energy collecting water tank and / or a heater are / is adopted, and a cooking bench smoke exhaust pipeline is connected into the heat energy collecting water tank and / or the heater; the heat energy collecting water tank and / or the heater is installed on the smoke exhaust pipeline, the smoke exhaust pipeline makes full contact with water, waste gas is exhausted after the heat is absorbed through the water tank and / or dissipated through the heater, and hot water or steam is generated or warm air is provided for daily use, and the smoke exhaust pipeline has the advantages that due to the fact that the heat energy collecting water tank and / or the heater are installed on the smoke exhaust pipeline, installation is convenient and easy, and the pipeline length is reduced; waste heat is collected through the heat energy collecting water tank and / or the heater, waste heat utilization is achieved, heat energy wasted by cooking at ordinary times is collected, hot water or steam is generated, or warm air is provided, and a large amount of energy is saved.

Description

Technical Field

[0001] The invention relates to a waste heat hot water heating stove, which can be used in households, restaurants and enterprises by collecting waste heat from a stove to boil water or provide heating. Background Art

[0002] Restaurants and businesses take a long time to cook and have sufficient heat sources, so they use more hot water or steam. For example, steam is needed to steam rice, and boilers are generally used to provide steam, which consumes a lot of energy. If the waste heat from the stove is used to boil water or provide steam, a lot of energy can be saved. In rural areas, heating in winter is also a large energy consumption. Some stoves use coal or firewood as fuel, and this heat can be used to boil water or provide heating. At present, the energy used by water heaters can be divided into: electricity, gas, solar energy, etc., among which electric and gas water heaters consume a lot of energy, and solar water heaters are greatly affected by the weather, with low hot water efficiency and long use time. The existing waste heat hot water stoves fail to fully utilize the waste heat, and only use a small part, resulting in low hot water efficiency or increased energy consumption. Summary of the invention

[0003] In order to solve the defects of waste heat hot water stoves, such as high energy consumption, low hot water efficiency or inability to provide heating, it is an ideal solution to collect the waste heat from the stove for hot water, steam or heating. The stove has a flue with a temperature of several hundred degrees. During normal use, the air takes away a lot of heat and discharges it from the flue into the air, which wastes energy and produces a greenhouse effect, which is not environmentally friendly or energy-saving. The coil method is used to introduce the high-temperature exhaust gas into the water tank, so that the water can fully absorb the heat and then enter the room for heating and then discharge it. This not only utilizes the waste heat, but also reduces the greenhouse effect, which is very energy-saving and environmentally friendly. The heated hot water or steam or heating can be used for daily life and heating.

[0004] In order to achieve the above effects, the present invention adopts the following technical solutions: The present invention provides a waste heat hot water heating stove, which is composed of a stove, a heat energy collection water tank and / or a heater. The stove is provided with a smoke exhaust pipe, the heat energy collection water tank is installed on the smoke exhaust pipe or the stove, and the heater is arranged on the smoke exhaust pipe. The smoke exhaust pipe discharges the exhaust gas after the heat is absorbed by the heat energy collection water tank and / or the heater dissipates the heat.

[0005] The heat energy collecting water tank is provided with a water inlet pipe and / or a water outlet pipe.

[0006] The heat energy collecting water tank is provided with a steam exhaust pipe.

[0007] The water inlet pipe is provided with a water level limiting valve for limiting the water level in the water tank.

[0008] The heat energy collecting water tank is provided with a water inlet auxiliary pipe.

[0009] The steam discharge pipe is provided with a pressure regulating valve.

[0010] The smoke exhaust pipe is configured to be spiral or S-shaped.

[0011] The smoke exhaust pipe is a flat pipe or a combination of multiple small-diameter pipes.

[0012] The smoke exhaust pipe is provided with a heat collecting plate or adopts a corrugated pipe.

[0013] The technical solution of the present invention is: using a heat energy collection water tank and / or a heater, connecting the stove exhaust pipe to the heat energy collection water tank and / or the heater, the exhaust pipe is in full contact with water, and the exhaust gas is discharged after the water tank absorbs heat and / or the heater dissipates heat, generating hot water or steam, or providing heating for daily use.

[0014] The beneficial effects of the present invention are: since the heat energy collection water tank and / or heater are installed in the smoke exhaust duct, the installation is convenient and simple, the pipe length is reduced, and the heat loss is reduced. The waste heat is collected by the heat energy collection water tank and / or heater to achieve waste heat utilization, and the heat energy wasted in daily cooking is collected to generate hot water or steam, or provide heating, saving a lot of energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below with reference to the accompanying drawings and examples. Figure 1 This is a three-dimensional diagram of a waste heat hot water stove. Figure 2 This is a top view of the waste heat hot water stove. Figure 3 This is a three-dimensional cross-sectional view of a waste heat hot water stove. Figure 4 Rear view of the waste heat hot water stove Figure 5 This is a schematic diagram of the stove and heat energy collection tank structure. Figure 6 This is a schematic diagram of the exhaust pipe structure in the stove and the heat energy collection tank. Figure 7 This is a three-dimensional diagram of the stove, heat collection tank and heater. Figure 8 This is a three-dimensional schematic diagram of the heat collection tank and the exhaust pipe structure in the heater. Fig. 9 This is a front view schematic diagram of the heat collection tank and the smoke exhaust pipe structure in the heater.

[0016] The numbers in the figure are: 1: stove; 2: stove exhaust port; 3: stove; 4: water inlet pipe; 5: water outlet pipe; 6: steam exhaust pipe; 7: discharge port; 8: heat energy collection water tank; 9: gas pipe; 10: S-shaped distribution of exhaust pipe; 11: water level limiting valve; 12: buoy; 13: water inlet auxiliary pipe; 14: pressure regulating valve; 15: exhaust pipe; 16: solar collector; 17: heater. Implementation

[0017] The exemplary embodiments of the present invention are described in detail below with reference to the accompanying drawings. The purpose of providing these exemplary embodiments is to enable those of ordinary skill in the art to clearly understand the present invention and to implement the present invention according to the description herein. The accompanying drawings and specific embodiments are not intended to limit the present invention, and the scope of the present invention is defined by the appended claims.

[0018] A waste heat hot water heating stove, comprising a stove (1), a heat energy collection water tank (8) and / or a heater (17), wherein the stove is provided with a smoke exhaust pipe (15), the heat energy collection water tank (8) is installed on the smoke exhaust pipe (15) or the stove (1), the heat energy collection water tank (8) is provided with a water inlet pipe (4) and / or a water outlet pipe (5), the heater (17) is arranged on the smoke exhaust pipe (15), and the smoke exhaust pipe (15) discharges waste gas after the heat energy collection water tank (8) absorbs heat and / or the heater (17) dissipates heat.

[0019] The smoke exhaust pipe is in full contact with water to efficiently transfer heat energy to the water to heat the water, and the hot water is discharged from the water outlet pipe for use, and the steam is discharged from the steam outlet pipe for use, or the smoke exhaust pipe is in full contact with air to efficiently transfer heat energy to the air to provide heating for the room, and the heat energy collection water tank (8) and / or the heater (17) can be used alone or in combination; like Figure 1 , 4 As shown, hot water can be used in four modes: hot water mode, steam mode, compatible mode, and switching mode; In hot water mode, the steam discharge pipe is closed or replaced with a safety valve, and the water level limiting valve is not required. Cold water flows into the water tank from the water inlet pipe, and the coil transfers heat to the cold water for heating. After the hot water is discharged from the water outlet pipe, the cold water is automatically replenished from the water inlet pipe. In steam mode, the water level limiting valve limits the water level in the water tank to a certain height, which is higher than the water outlet pipe, so that a certain amount of space is reserved in the water tank to prevent water from flowing out of the steam outlet pipe. The water outlet pipe is closed or cancelled. When the water temperature is heated to the boiling point, steam is continuously generated in the water tank and discharged from the steam outlet pipe for use, such as connecting a steamer to steam rice. In compatible mode, the water outlet pipe can also discharge hot water based on the steam mode, but the water pressure is relatively low. At this time, a pressure regulating valve can be installed on the steam outlet pipe to adjust the pressure in the water tank so that both hot water and steam can be used. In switching mode, you can manually switch the usage mode. On the basis of compatible mode, add a water inlet auxiliary pipe. When switching to steam mode, close the water inlet auxiliary pipe, open the water outlet pipe to discharge some water and then close it. The water level limiting valve will automatically control the water replenishment to the limited water level, and the pressure regulating valve is fully open. At this time, it enters the steam mode. When switching to hot water mode, open the water inlet auxiliary pipe. At this time, the water level limiting valve cannot limit the water level even if it is closed. Cold water will enter from the water inlet auxiliary pipe and fill the heat energy collection tank. Adjust the pressure regulating valve so that water cannot flow out of the steam discharge pipe. It can be discharged only when the pressure exceeds the limit, which acts as a safety valve and enters the hot water mode.

[0020] The heat energy collection water tank is provided with a steam discharge pipe (6). The steam discharge pipe is provided only in the steam mode, the compatible mode or the switching mode. In the hot water mode, a safety valve can be used to replace it.

[0021] The water inlet pipe is provided with a water level limiting valve (11) for limiting the water level in the water tank. The water level limiting valve is provided only in the steam mode, the compatible mode or the switching mode, and can be omitted in the hot water mode.

[0022] The heat energy collection water tank is provided with a water inlet auxiliary pipe (13), which is provided only in the switching mode and can be omitted in other modes.

[0023] The steam discharge pipe is provided with a pressure regulating valve (14). The pressure regulating valve is provided only in the compatible mode or the switching mode and can be omitted in the steam mode.

[0024] The smoke exhaust pipe is arranged in a spiral shape or an S shape, the purpose of which is to extend the length of the smoke duct and improve the hot water efficiency.

[0025] The smoke exhaust pipe adopts a flat pipe or a combination of multiple small-diameter pipes, the purpose of which is to increase the contact area with water or air and improve the hot water or heating efficiency.

[0026] The smoke exhaust pipe is provided with a heat collecting plate or a corrugated pipe, the purpose of which is to increase the contact area with water or air and improve the hot water or heating efficiency.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waste heat hot water heating stove, characterized in that: The waste heat hot water heating stove consists of a stove, a heat energy collection water tank and / or a heater. The stove is provided with a smoke exhaust pipe. The heat energy collection water tank is installed in the smoke exhaust pipe or on the stove. The heater is arranged on the smoke exhaust pipe. The smoke exhaust pipe discharges the exhaust gas after the heat energy collection water tank absorbs heat and / or the heater dissipates heat.

2. A waste heat hot water heating stove as claimed in claim 1, characterized in that: The heat energy collection water tank is provided with a water inlet pipe and / or a water outlet pipe.

3. A waste heat hot water heating stove as claimed in claim 1, characterized in that: The heat energy collection water tank is provided with a steam exhaust pipe.

4. A waste heat hot water heating stove as claimed in claim 1, characterized in that: The water inlet pipe is provided with a water level limiting valve.

5. A waste heat hot water heating stove as claimed in claim 1, characterized in that: The heat energy collection water tank is provided with a water inlet auxiliary pipe.

6. A waste heat hot water heating stove as claimed in claim 1, characterized in that: The smoke exhaust pipe is arranged in a spiral shape or an S shape.

7. A waste heat hot water heating stove as claimed in claim 1, characterized in that: The smoke exhaust pipe is a flat pipe or a combination of multiple small-diameter pipes.

8. A waste heat hot water heating stove as claimed in claim 1, characterized in that: The smoke exhaust pipe is provided with a heat collecting sheet or a corrugated pipe.

9. A waste heat hot water heating stove as claimed in claim 3, characterized in that: The steam discharge pipe is provided with a pressure regulating valve.

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