WO2017177893A1

WO2017177893A1 - Energy-saving pot

Info

Publication number: WO2017177893A1
Application number: PCT/CN2017/080074
Authority: WO
Inventors: 邓长友
Original assignee: 深圳市鸿效节能股份有限公司
Priority date: 2016-04-11
Filing date: 2017-04-11
Publication date: 2017-10-19
Also published as: CN105747840A; CN105747840B

Abstract

An energy-saving pot comprises a pot body (21), a pot surface (22), and a pot bottom (20). The pot bottom (20) is provided with mesh-honeycombed bulges (1-2) used for enhancing heat transfer. Each mesh-honeycombed bulge (1-2) is provided with small holes that are densely formed from the outer surface to the inside and that communicate with one another. When hot flue gas (16) upwards flows through the mesh-honeycombed bulges (1-2), the hot flue gas (16) flows into the densely-formed small holes in the honeycombed bulges after being divided into numerous small flows (19), so that the convection area is greatly increased, and numerous turbulent flows (18) are generated at the same time, thereby improving the convection heat-transfer coefficient. According to the energy-saving pot, heat in the hot flue gas and flame is quickly absorbed by arranging the mesh-honeycombed bulges, and is transferred to a to-be-heated object through the pot body, so that the bottleneck in a heat transfer process is eliminated, so as to improve the heat energy utilization rate, thereby achieving the purposes of saving energy and reducing environmental pollution.

Description

Energy saving pot

Technical field

The invention belongs to the technical field of thermal engineering, and in particular relates to an energy saving pot.

Background technique

At present, metal pans using ordinary fuels are mostly made of aluminum, stainless steel, copper, iron and other metals. Due to their simple structure, easy manufacture and convenient use, they have been used for many years. However, limited by the container-type structure, the heat transfer efficiency is very low, especially in the high-tank pot. After the hot flame heats the bottom of the pot, the heat energy that is not exchanged is dissipated to the surroundings, and generally only about 50% of the heat energy consumed can be effectively utilized. In addition to reasonable consumption, it is obviously a waste of valuable energy and time, polluting the environment.

At present, there are several utility model designs using ordinary fuel metal pots, such as the use of embossed pot bottom method, pot bottom device water pipes, etc., to increase heat transfer efficiency by changing heat transfer area and changing structure. However, its ubiquitous problems are:

1. The use of embossed pot bottom method to increase heat transfer efficiency is extremely limited, and too large bumps will cause obstacles to use;

2. Although the water pipe at the bottom of the pot can improve the heat efficiency, it will inevitably cause greater obstacles to use. As for the use of the hot pot form, it is more unfavorable for daily use, which is unacceptable;

3, especially the general failure to solve the problem of carrying a large amount of heat energy to the four sides after the hot flame heats the bottom of the pot.

If there is a technology, the convective heat transfer speed of the bottom of the pot can be enhanced, and the bottleneck in the heat transfer process can be eliminated as much as possible, and the heat utilization efficiency of the pot will be improved. Therefore, it is necessary to conduct research and development to provide an energy-saving pot to improve the efficiency of heat energy utilization in order to achieve energy saving and environmental pollution reduction.

Summary of the invention

In order to solve the above problems, an object of the present invention is to provide an energy-saving pot to improve heat energy utilization, achieve energy saving and reduce environmental pollution.

To achieve the above object, the technical solution of the present invention is:

An energy-saving pot comprises a pot body, a pot surface, and a pot bottom; the bottom of the pot is provided with a mesh honeycomb bag for enhancing heat transfer; the mesh honeycomb bag is provided with a small communication from the outer surface to the inner dense cloth. Hole; wherein, when the hot flue gas flows upward through the mesh honeycomb package, the hot flue gas is divided into a plurality of fine flow into and out of the dense small hole on the honeycomb package, the convection area is greatly increased, and numerous turbulence is generated at the same time, and the convective heat transfer is improved. coefficient.

Further, the mesh honeycomb package has a top cross-sectional area ≤ a bottom cross-sectional area, and an angle between the geometric center line and the bottom cross-section of 15°-90°.

Further, the mesh honeycomb package is provided with one or more cavities that open in the same direction.

Further, the mesh honeycomb package has a circular, square or variable cross section.

Further, the mesh honeycomb package is formed of a metal or refractory material, and the surface of the mesh honeycomb package is coated with a far infrared radiation material from the outer surface to the inner densely communicating hole.

Compared with the prior art, the energy-saving pot of the invention quickly absorbs the heat inside the hot flue gas and the radiant heat emitted by the flame and transmits it to the heated object by setting the mesh honeycomb package, thereby eliminating the bottleneck in the heat transfer process, thereby improving The utilization of heat energy achieves the purpose of energy saving and environmental pollution reduction.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings which are used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those skilled in the art from the drawings.

1 is a schematic view showing the principle of an energy saving pot of the present invention;

2A-2D are schematic views of a heat-enhanced mesh honeycomb package of the present invention;

detailed description

The embodiment of the invention provides an energy-saving pot, which quickly absorbs the heat inside the hot flue gas and the radiant heat emitted by the flame and transmits the heat to the object to be heated, thereby eliminating bottlenecks in the heat transfer process, thereby improving The utilization of heat energy achieves the purpose of energy saving and environmental pollution reduction.

In order to make the object, the features and the advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of the present invention.

The terms "first", "second" and the like in the specification and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a particular order or order. It is to be understood that the terms so used are interchangeable as appropriate, and are merely illustrative of the manner in which the objects of the same. In addition, the terms "comprises" and "comprises" and "comprises", and any variations thereof, are intended to cover a non-exclusive inclusion so that a process, method, system, product, or device comprising a series of units is not necessarily limited to those elements, but may include Other units listed or inherent to these processes, methods, products or equipment.

The details are described below separately.

As shown in FIG. 1, the energy-saving pot of the present invention comprises a pot surface 22, a pot body 21, and a pot bottom 20; wherein the pot bottom 20 is provided with a mesh honeycomb package 1-2 for enhancing heat transfer. The mesh honeycomb package is provided with small holes that communicate with each other from the outer surface to the inner dense. The top cross-sectional area of the mesh honeycomb package is ≤ bottom cross-sectional area, the angle between the geometric center line and the bottom cross section is 15°-90°, and the mesh honeycomb The bag has one or more cavities that open in the same direction. When the hot flue gas 16 flows upward through the cell honeycomb package 1-2, the hot flue gas 16 is divided into a plurality of fine streams 19 into and out of the dense holes on the honeycomb bag, and the convection area is greatly increased, and at the same time, numerous turbulences 18 are generated, which is improved. Convective heat transfer coefficient. According to the convective heat transfer calculation formula, the convective heat transfer amount is proportional to the area and convective heat transfer coefficient when the fluid flow rate and the temperature and pressure are the same. At the same time, the radiant energy generated by the flame projects heat in the form of heat radiation rays 17 to the enhanced heat transfer mesh honeycomb package, which greatly increases the blackness of the honeycomb package due to the dense apertures in the honeycomb package and the open cavity. Therefore, the mesh cellular package 1-2 is not only Efficient absorption of convective heat transfer, and efficient absorption of a large number of radiant heat energy generated by the flame, so that the cell honeycomb package 1-2 itself temperature rise. In the embodiment of the present invention, the mesh honeycomb package adopts the same metal material as the pot body, has a high thermal conductivity, and can quickly transfer thermal energy to the water 23 in the pot surface 22.

In one embodiment, the mesh honeycomb package has a circular, square or variable cross section, and the bottom of the mesh honeycomb package cooperates with the refractory wall to be installed for easy installation.

In another embodiment, the mesh honeycomb package is formed of a metal or refractory material in the shape of a boss, and the surfaces of the mesh honeycomb package are coated with far infrared radiation materials from the outer surface to the inner densely communicating holes.

Specifically, referring to FIG. 2A to FIG. 2D, it is four specific implementation forms of the mesh cellular package. Of course, it is not limited to these four shapes, and other irregular shapes are also possible. Wherein, the geometric center line of the mesh honeycomb packages 1-1, 1-2 has an angle of 90° with the bottom section, and the mesh honeycomb package 1-2 has a plurality of cavities. The angle between the geometric centerline of the mesh honeycomb package 1-3 and the bottom section is less than 90°. The mesh honeycomb package 1-4 is circular in shape and has no central cavity. In the specific implementation, the shape, the cavity, the shape of the small hole of the dense cloth, the angle of the center line, and the like may all be changed according to the specific conditions that satisfy the enhanced heat transfer, and are not limited to these shapes, and may have more forms.

The method of the invention creates a technical solution for enhancing heat transfer in the field of thermal engineering. It can change the heat energy efficiency of many kinds of thermal energy equipment and produce obvious energy saving effect.

In conclusion, the above embodiments are only used to explain the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still The technical solutions described in the above embodiments are modified, or equivalent to some of the technical features are included; and the modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

An energy-saving pot comprising a pot body, a pot surface, and a pot bottom; wherein the bottom of the pot is provided with a mesh honeycomb package for enhancing heat transfer; the mesh honeycomb bag is provided with an outer surface to an inner portion a small hole that communicates with each other; wherein, when the hot flue gas flows upward through the mesh honeycomb package, the hot flue gas is divided into a plurality of fine flow into and out of the dense small hole on the honeycomb package, the convection area is greatly increased, and numerous turbulences are generated at the same time. Increased convective heat transfer coefficient.
The energy-saving pot according to claim 1, wherein the mesh honeycomb package has a top cross-sectional area, a bottom cross-sectional area, and an angle between the geometric center line and the bottom cross-section of 15°-90°.
The energy saving pot of claim 1 wherein said mesh honeycomb package is provided with one or more cavities that open in the same direction.
The energy-saving pot according to any one of claims 1 to 3, characterized in that the mesh honeycomb package has a circular, square or other cross-sectional shape.
The energy-saving pot according to any one of claims 1 to 3, characterized in that the mesh honeycomb package is composed of a high thermal conductivity material and is coated with a high blackness refractory coating.
The energy-saving pot according to any one of claims 1 to 3, wherein the mesh honeycomb package is a boss shape or a flat plate type.