Waste heat recovery type gas stove

Abstract

The utility model belongs to the technical field of gas stoves, and particularly discloses a waste heat recovery type gas stove which comprises a shell, a hearth is formed in the shell, a mounting base is arranged at the bottom of the hearth and used for mounting an ignition structure, a partition plate is detachably connected in the hearth, a heat exchange cavity is formed between the partition plate and the shell in a spaced mode, and the heat exchange cavity is communicated with the hearth. A heat exchange pipe is detachably connected in the heat exchange cavity, and a first through hole for the heat exchange pipe to penetrate through is formed in the shell; the top of the mounting base is provided with a flue communicating with the heat exchange cavity, and the shell is provided with a smoke outlet communicating with the flue. The heat exchange cavity is formed by the partition plate and the shell, the heat exchange pipe is arranged in the heat exchange cavity, smoke generated by combustion of the gas stove enters the heat exchange cavity and then exchanges heat with water in the heat exchange pipe, and part of heat generated by combustion in a hearth enters the heat exchange cavity through the partition plate and further exchanges heat with the heat exchange pipe. Flue gas flowing distance is reduced, heat loss is effectively reduced, and waste heat utilization efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gas stove technical field, concretely relates to a waste heat recovery type gas stove. BACKGROUND

[0002] The waste heat recovery of gas stove is a system that uses the flue gas waste heat generated during the use of the stove to supply tap water to the user, so as to reduce heat waste.

[0003] The existing waste heat recovery type gas stove mainly utilizes the heat exchange between the flue gas heat generated by combustion and the water passing through the heat exchange pipe to achieve the purpose of waste heat utilization. This method usually introduces the flue gas into the heat exchanger for heat exchange, which requires the installation of an additional heat exchanger. Moreover, the flue gas flow process also causes a certain amount of heat loss, resulting in low waste heat utilization rate.

[0004] In order to solve the problem of low waste heat utilization rate in the prior art, the structure of the gas stove needs to be improved to solve the current technical problem. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims to provide a waste heat recovery type gas stove that fully utilizes the flue gas waste heat generated by the gas stove, reduces heat loss, and improves the waste heat utilization rate.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a waste heat recovery type gas stove, comprising a shell, a hearth is formed in the shell, an installation base is arranged at the bottom of the hearth to install an ignition structure, a partition plate is detachably connected in the hearth, a heat exchange cavity is formed between the partition plate and the shell, the top of the heat exchange cavity is communicated with the hearth, a heat exchange pipe is detachably connected in the heat exchange cavity, and the shell is provided with a first through hole through which the heat exchange pipe passes; a flue communicated with the heat exchange cavity is arranged at the top of the installation base, and the shell is provided with a smoke outlet communicated with the flue.

[0007] In order to better achieve the utility model, the shell is a hollow circular truncated cone structure, and the large diameter end faces upward.

[0008] In order to better achieve the utility model, three supports are fixedly connected to the inner wall of the shell, and the partition plate and the heat exchange pipe are detachably connected to the supports.

[0009] In order to better achieve the utility model, the supports are provided with a plurality of installation grooves, the heat exchange pipe is a metal corrugated pipe, and the heat exchange pipe is spirally embedded in the installation grooves.

[0010] In order to better achieve the utility model, the supports are provided with a plurality of nuts, and the plurality of nuts are fixedly connected to the protrusions between the adjacent installation grooves.

[0011] For better implementation of the utility model, the partition is three equal parts assembled structure, and each part of the partition both sides are equipped with a plurality of second perforation corresponding with the nut, each part of the partition adopts bolt to pass through the second perforation, and is fixed on the nut of the support.

[0012] For better implementation of the utility model, the top of the flue is equipped with a plurality of first smoke inlet, and the flue is communicated with the heat exchange cavity through the first smoke inlet.

[0013] For better implementation of the utility model, the top of the partition is equipped with a plurality of second smoke inlet, and the heat exchange cavity is communicated with the hearth through the second smoke inlet.

[0014] Beneficial effects:

[0015] The utility model discloses a partition is set, makes it with the shell forms the heat exchange cavity, and sets up the heat exchange pipe in the heat exchange cavity, and the flue gas produced by gas stove combustion enters the heat exchange cavity and exchanges heat with the water in the heat exchange pipe, and the heat produced by combustion in the hearth will also have a part to enter the heat exchange cavity through the partition, further exchanges heat with the heat exchange pipe, reduces the flue gas flow path, effectively reduces the heat loss, improves the waste heat utilization efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structural drawing of the utility model;

[0017] Figure 2 It is the internal structure diagram of the heat exchange cavity of the utility model;

[0018] Figure 3 It is the plan view of the utility model;

[0019] Figure 4 It is the A-A section view of the utility model.

[0020] In the drawing: 1, shell;2, hearth;3, mounting base;4, partition;5, heat exchange cavity;6, heat exchange pipe;7, first perforation;8, flue;9, smoke outlet;10, support;11, mounting groove;12, nut;13, second perforation;14, first smoke outlet;15, second smoke outlet. DETAILED DESCRIPTION

[0021] Embodiment

[0022] As Figure 1 - Figure 4As shown in the figure, a waste heat recovery type gas stove includes a housing 1. A furnace 2 is formed inside the housing 1. An installation base 3 is provided at the bottom of the furnace 2 for installing an ignition structure. A partition plate 4 is detachably connected inside the furnace 2. A heat exchange chamber 5 is formed at an interval between the partition plate 4 and the housing 1. The top of the heat exchange chamber 5 is connected to the furnace 2. A heat exchange pipe 6 is detachably connected inside the heat exchange chamber 5. The housing 1 is provided with a first through hole 7 for the heat exchange pipe 6 to pass through; a flue 8 communicating with the heat exchange chamber 5 is provided at the top of the installation base 3. The housing 1 is provided with a smoke exhaust port 9 communicating with the flue 8.

[0023] The working principle of the present utility model is generally described as follows:

[0024] Gas burns in the furnace 2, generating two main parts of heat. The first part is the flame part, which mainly heats the cookware for cooking. At the same time, the heat of the flame also heats the partition plate 4. The partition plate 4 transfers the heat to the heat exchange pipe 6 through the heat exchange chamber 5 to heat the heat exchange pipe 6; the second part is the flue gas, which enters the heat exchange chamber 5 from the top of the furnace 2 to the surroundings and then gradually passes through all the heat exchange pipes 6 downward, so as to exchange heat with the heat exchange pipes 6 to achieve the purpose of waste heat utilization. The flue gas after waste heat utilization is discharged from the flue 8 to the smoke exhaust port 9. The water in the heat exchange pipe 6 is heated through heat exchange for use.

[0025] Preferably, the housing 1 is a hollow frustum structure with the large diameter end facing upward; through this design, the overall structure of the gas stove presents a shape convenient for placing cookware of different sizes. When the cookware is placed, a combustion chamber will be formed between the bottom of the cookware, the partition plate 4 and the base for gas combustion. The heat generated by combustion mainly transfers to the top to heat the cookware, and a part of it will transfer to the heat exchange chamber 5 through the partition plate 4, so that the heat generated by gas combustion can be fully utilized, reducing heat loss, and being economical and efficient.

[0026] Preferably, three brackets 10 are fixedly connected to the inner wall of the housing 1. The partition plate 4 and the heat exchange pipe 6 are both detachably connected to the brackets 10. The three brackets 10 are in a "U" shape or an "Ω" shape. By setting the three brackets 10, the detachable connection between the partition plate 4, the heat exchange pipe 6 and the housing 1 is realized, which is convenient for the installation of the heat exchange pipe 6 and the partition plate 4, and is also convenient for disassembly and repair when the components are damaged; if too many brackets 10 are set, it will affect the heat exchange area of the heat exchange pipe 6 and reduce the heat exchange efficiency. If too few brackets 10 are set, the heat exchange pipe 6 will be unstable in support, affecting the use safety and also reducing the service life. Setting three "U" shaped or "Ω" shaped brackets 10 can both well support the heat exchange pipe 6 and will not cause too much impact on the heat exchange area of the heat exchange pipe 6.

[0027] Preferably, the support 10 is provided with a plurality of installation grooves 11, the heat exchange pipe 6 is a metal bellows, and the heat exchange pipe 6 is spirally embedded in the installation groove 11. The metal bellows structure can improve the deformation ability of the heat exchange pipe 6, facilitate the embedding of the heat exchange pipe 6 in the installation groove 11, improve the convenience of installation of the heat exchange pipe 6, and improve the water quantity of one-time heating by spirally installing the heat exchange pipe 6 in the heat exchange cavity 5. Meanwhile, the heat exchange area of the heat exchange pipe 6 is increased, and the heat exchange efficiency is improved.

[0028] Preferably, the support 10 is provided with a plurality of nuts 12, the plurality of nuts 12 are fixedly connected to the protrusions between adjacent installation grooves 11; the partition plate 4 is a three-part assembly structure, and each part of the partition plate 4 is provided with a plurality of second perforations 13 corresponding to the nuts 12 on both sides. Each part of the partition plate 4 is fixedly screwed to the nut 12 of the support 10 by penetrating the second perforation 13. During installation, the second perforations 13 on the three partition plates 4 are correspondingly arranged with the nuts 12, and then the three partition plates 4 are fixedly connected by bolts. During disassembly, only the bolts need to be removed.

[0029] Preferably, the top of the flue 8 is provided with a plurality of first smoke inlets 14, and the flue 8 is communicated with the heat exchange cavity 5 through the first smoke inlets 14. The flue gas after heat exchange in the heat exchange cavity 5 is discharged to the flue 8 through the first smoke inlets 14 and finally discharged from the smoke outlet 9.

[0030] Preferably, the top of the partition plate 4 is provided with a plurality of second smoke inlets 15, and the heat exchange cavity 5 is communicated with the hearth 2 through the second smoke inlets 15. The flue gas generated after the combustion of the fuel gas in the hearth 2 is discharged into the heat exchange cavity 5 through the second smoke inlets 15 and then sequentially passes through all the spirally arranged heat exchange pipes 6 for heat exchange.

[0031] Finally, it should be noted that: the above only describes preferred embodiments of the present application and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A gas stove of the type with heat recovery, characterized in that, The utility model provides a heat exchange type stove, including shell (1), the hearth (2) is formed in the shell (1), the bottom of the hearth (2) is equipped with the installation base (3) to install the ignition structure, the detachable connection of the hearth (2) has the partition (4), and the heat exchange cavity (5) is formed between the partition (4) and the shell (1), the top of the heat exchange cavity (5) is communicated with the hearth (2), and the detachable connection of the heat exchange cavity (5) has the heat exchange pipe (6), and the shell (1) is equipped with the first perforation (7) that the heat exchange pipe (6) passes through, the top of the installation base (3) is equipped with the flue (8) that is communicated with the heat exchange cavity (5), and the shell (1) is equipped with the smoke outlet (9) that is communicated with the flue (8).

2. The gas stove of claim 1, wherein The shell (1) is hollow circular cone structure, and the large diameter one end faces up.

3. The gas stove of claim 1, wherein the heat exchanger is disposed in the lower portion of the body. The inner wall of the shell (1) is fixedly connected with three supports (10), and the partition (4) and the heat exchange pipe (6) are detachably connected to the support (10).

4. The gas stove of claim 3, wherein the heat exchanger is arranged to be cooled by the exhaust gas. The support (10) is equipped with a plurality of installation grooves (11), the heat exchange pipe (6) adopts metal bellows, and the heat exchange pipe (6) is spirally embedded in the installation groove (11).

5. The gas stove of claim 4, wherein the heat exchanger is arranged to be cooled by the exhaust gas. The support (10) is equipped with a plurality of nuts (12), and a plurality of the nuts (12) are fixedly connected to the protrusions between the adjacent installation grooves (11).

6. The gas stove of claim 5, wherein The partition (4) is three equal parts assembly structure, and a plurality of second perforations (13) corresponding to the nuts (12) are arranged on the two sides of each part of the partition (4), and each part of the partition (4) is screwed on the nut (12) of the support (10) after passing through the second perforation (13) by bolt.

7. The gas stove of claim 1, wherein the heat exchanger is formed of a material having a high thermal conductivity. The top of the flue (8) is equipped with a plurality of first smoke inlets (14), and the flue (8) is communicated with the heat exchange cavity (5) through the first smoke inlet (14).

8. The gas stove of claim 1, wherein The top of the partition (4) is equipped with a plurality of second smoke inlets (15), and the heat exchange cavity (5) is communicated with the hearth (2) through the second smoke inlet (15).

Images