Input heat buffering boiler

Abstract

The utility model discloses an input heat buffering boiler. A water inlet end of a boiler main body is provided with a water inlet heat buffering assembly; the water inlet heat buffering assembly comprises a cylindrical buffering shell and an L-shaped bent output pipe with two open ends; the buffer shell is divided into a buffer shell inner section arranged in the boiler main body and a buffer shell outer section exposed outside; one end of the output pipe penetrates through the side wall of the inner section of the buffer shell to form a water outlet, and an inner cavity of the boiler body communicates with the interior of the buffer shell. A water inlet is formed in the outer section of the buffer shell; and the L-shaped long section of the output pipe is coaxial with the boiler main body. The device can be applied to small equipment such as coffee machines, steam engines and the like, when the equipment outputs hot water and steam, the movement mode of input cold water is limited, the influence on the overall temperature in the boiler is reduced, the boiler can output hot water and steam for a longer time, and meanwhile the device is simple in structure and convenient to use. Equipment power and complicated structures such as bent pipes do not need to be increased, the manufacturing difficulty is reduced, and the manufacturing cost and the failure rate are reduced.

Description

Technical Field

[0001] The utility model relates to the field of coffee machine boilers, in particular to an input heat buffer boiler. Background Art

[0002] The boiler in the coffee machine provides boiling water and steam, and is an important component of the coffee machine. The boiler continuously heats to produce boiling steam and boiling water for brewing coffee, frothing milk, and heating beverages. As hot water and steam are consumed, water needs to be replenished continuously, and the newly added cold water will lower the temperature of the boiler, causing the boiler pressure to drop, thereby affecting the output of hot water and steam, and then affecting the efficiency of brewing coffee, frothing milk, and heating beverages; some existing solutions use solutions that increase the power of the heating tube, add a preheating boiler, or increase the volume of the boiler. However, the size and shape of the coffee machine are limited by the application scenario. Adding a preheating boiler and increasing the power of the heating tube will increase the complexity of the system and increase the power of the product, which makes the installation and use subject to many restrictions (after increasing the power, it is necessary to install an air switch and a large square line in the machine, including installing a higher power line in advance at the place of use to provide a safe power usage scenario), which greatly reduces the adaptability of the product. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent. To this end, the purpose of the utility model is to propose a boiler that can preheat the input cold water in advance, so as to further improve the energy efficiency ratio under the conditions of the same boiler volume and the same heating tube power.

[0004] To achieve the above object, the embodiment of the utility model provides an input heat buffer boiler, comprising:

[0005] Boiler body: equipped with a heater; the boiler body has a water inlet end and a water outlet and gas outlet end, and the water inlet end is equipped with a water inlet heat buffer component;

[0006] Inlet heat buffer assembly: comprising a cylindrical buffer shell and an output pipe with both ends open and L-shaped bend; the buffer shell is divided into an inner buffer shell section arranged in the boiler body and an outer buffer shell section exposed to the outside; one end of the output pipe penetrates the side wall of the inner buffer shell section to form a water outlet, connecting the inner cavity of the boiler body with the inside of the buffer shell; the outer buffer shell section is provided with a water inlet;

[0007] The L-shaped long section of the output pipe is coaxial with the boiler body.

[0008] An input heat buffer boiler according to an embodiment of the utility model can be applied to small devices such as coffee machines. When these devices output hot water and steam, the movement of the input cold water is restricted, reducing the impact on the overall temperature inside the boiler, so that the boiler can output hot water and steam for a longer time. At the same time, the device has a simple structure, does not require complex structures such as bent pipes and increase product power, reduces manufacturing difficulty, and reduces manufacturing costs.

[0009] In addition, the heat input buffer boiler proposed in the above embodiment of the utility model may also have the following additional technical features:

[0010] Optionally, the buffer shell is cylindrical or capsule-shaped.

[0011] Optionally, the buffer shell has a length of 120 to 220 mm and an outer diameter of 31 to 33 mm.

[0012] Optionally, the ratio of the length of the L-shape of the output tube is between 1:4.5 and 1:5.5.

[0013] Optionally, the outer diameter of the output tube is 4 to 8 mm.

[0014] Optionally, the output tube has an arc transition at its bend. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural stereogram according to an embodiment of the utility model;

[0016] Figure 2 It is a partial internal composition according to an embodiment of the utility model;

[0017] Figure 3 It is an angled elevation view according to an embodiment of the utility model;

[0018] Figure 4 for Figure 3 sectional view of

[0019] Figure 5 A perspective view of a water inlet thermal buffer assembly according to an embodiment of the utility model;

[0020] Figure 6 A cross-sectional view of a water inlet thermal buffer assembly according to an embodiment of the utility model;

[0021] Figure 7 It is a cross-sectional view of a water inlet thermal buffer assembly according to one embodiment of the utility model.

[0022] Description of labels:

[0023] Boiler body 1 water inlet 11 heater 2

[0024] The water inlet heat buffer component 3 has a buffer shell 31 and a water inlet 311 and an output pipe 32 and a water outlet 321 . DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0026] The utility model can be applied to small devices such as coffee machines. When these devices output hot water and steam, the movement of the input cold water is restricted, reducing the impact on the overall temperature inside the boiler, so that the boiler can output hot water and steam for a longer time. At the same time, the device has a simple structure, does not require complex structures such as bent pipes and increase power, reduces manufacturing difficulty, and reduces manufacturing costs.

[0027] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0028] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] The existing boilers used in coffee machines, specifically espresso machines, have several structures such as single boiler, double boiler and multi-boiler. Regardless of the structure, the purpose to be achieved is to output both hot water and steam. To output hot water and steam, water must be added to the boiler. Directly adding water at room temperature will cause the boiler water temperature to drop, affecting the generation of steam and the temperature of hot water, and further affecting the taste of coffee. In particular, commercial coffee machines need to improve the hot water output efficiency to ensure the coffee brewing efficiency.

[0030] For single boiler products, large volume is its advantage, but it cannot preheat the input water temperature like double boilers, so it is inevitable that the boiler temperature will drop significantly after frequent use; there are also some solutions to solve this problem by setting a long water inlet pipe section and heating the water inlet, but the problems brought by this method are that the heating and control devices are complicated, the water channel is curved, and it is difficult to clean the boiler later;

[0031] The solution of the embodiment of the utility model is to set a water inlet heat buffer component on the basis of a single boiler structure, which has a simple structure, has no complicated and difficult-to-clean dead corners, realizes preheating of the water inlet part, and does not need to add a heating or control system of the single boiler structure;

[0032] Figures 1 to 7 A heat input buffer boiler according to an embodiment of the utility model comprises:

[0033] Boiler body 1: The volume can be 4 to 18 L, preferably 4 L, 10 L and 15 L, and is provided with a heater 2; the boiler body 1 has a water inlet end 11 and a water outlet end, and the water inlet end 11 is provided with a water inlet heat buffer component 3;

[0034] Inlet thermal buffer assembly 3: includes a cylindrical buffer shell 31 and an output pipe 32 that is open at both ends and bent in an L shape; specifically, the buffer shell 31 is cylindrical or capsule-shaped, and the shell of the buffer shell 31 can be made of the same material and process as the boiler shell and fixed together by welding or the like. When the boiler is working, there is a certain pressure inside, and the capsule-shaped structure can better avoid the phenomenon of local stress concentration.

[0035] Optionally, the buffer shell 31 has a length of 120-220 mm and an outer diameter of 31-33 mm, and the preferred solution is 32 mm. Taking a 4L boiler as an example, the length of the buffer shell 31 can be set to about 140 mm, and the outer diameter is 32 mm (it can be directly manufactured using a round tube with a nominal diameter of 32, ±1 mm, and the source of materials is convenient). The buffer shell 31 is divided into an inner section of the buffer shell 31 disposed in the boiler body 1, and an outer section of the buffer shell 31 exposed to the outside; when in use, the buffer shell 31 enters the interior of the boiler, and the water in the buffer shell 31 achieves heat exchange with the water in the boiler through the buffer shell 31;

[0036] The thickness of the buffer shell 31 is in the range of 0.5 to 1.5 mm in consideration of the pressure resistance requirement and the heat exchange rate.

[0037] One end of the output pipe 32 penetrates the side wall of the inner section of the buffer shell 31 to form a water outlet 321, connecting the inner cavity of the boiler body 1 with the inside of the buffer shell 31; the outer section of the buffer shell 31 is provided with a water inlet 311; when in use, the water inlet 311 is connected to the incoming water, and the water at the other end is squeezed out from the water outlet 321 formed by the output pipe 32 by the incoming water pressure; in this process, the low-temperature water input by the water inlet 311 needs to gradually extend into the high-temperature area in the boiler through the buffer shell 31. In this process, the water in the buffer shell 31 is gradually heated by the surrounding boiler water through heat exchange. The entire water inlet heat buffer assembly 3 can also be set in a position close to the boiler heater 2, so that the water temperature around the water inlet heat buffer assembly 3 can be more effectively heated, and the heat exchange efficiency is higher.

[0038] Preferably, the water inlet 311 is larger than the diameter of the water outlet 321. This is to increase the flow rate at the water outlet so that it can enter the hot water area in a jetting manner, thereby stirring the local hot water and accelerating the fusion of the two temperatures of water.

[0039] The water outlet 321 and the water inlet 311 are as close as possible, so that the flow path of water in the buffer shell 31 is as long as possible, thereby prolonging the heat exchange time.

[0040] The L-shaped long section of the output pipe 32 is coaxial with the boiler body 1, which can further increase the flow path of the water flow in the buffer shell 31. Specifically, the output pipe 32 can adopt the following schemes: the length ratio of the L-shaped output pipe 32 is between 1:4.5 and 1:5.5, preferably, 1:5. The outer diameter of the output pipe 32 is between 4 and 8 mm, the wall thickness is between 0.5 and 1 mm, and preferably, the pipe diameter is 6 mm. The output pipe 32 adopts an arc transition at the bend.

[0041] In the embodiment of the utility model, one of the design purposes is to form a structure similar to a mother-and-child boiler by combining a boiler body and a water inlet heat buffer component, wherein a heating tube is provided on the large boiler, and the small boiler is immersed in the large boiler, and the water in the small boiler is preheated in advance by physical heat conduction; when the water is inlet next time, the cold water is first "squeezed" into the small boiler, and then the hot water in the small boiler is "squeezed" into the large boiler; the inlet water is hot water, rather than directly cold water; the cold water in the small boiler is surrounded by the thermal environment of the large boiler and preheated.

[0042] On the other hand, through the above-mentioned scheme, using physical temperature transfer, there is no need to install heating tubes on the small boiler, thereby not increasing the power of the equipment, reducing the complexity of the equipment structure, reducing the control difficulty and reducing costs, thereby greatly improving the scope of application of energy consumption reduction.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0046] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An input heat buffer boiler, characterized in that: include Boiler body: equipped with a heater; the boiler body has a water inlet end and a water outlet and gas outlet end, and the water inlet end is equipped with a water inlet heat buffer component; Inlet heat buffer assembly: comprising a cylindrical buffer shell and an output pipe with both ends open and L-shaped bend; the buffer shell is divided into an inner buffer shell section arranged in the boiler body and an outer buffer shell section exposed to the outside; one end of the output pipe penetrates the side wall of the inner buffer shell section to form a water outlet, connecting the inner cavity of the boiler body with the inside of the buffer shell; the outer buffer shell section is provided with a water inlet; The L-shaped long section of the output pipe is coaxial with the boiler body.

2. The heat input buffer boiler according to claim 1, characterized in that: The buffer shell is cylindrical or capsule-shaped.

3. The heat input buffer boiler according to claim 1, characterized in that: The buffer shell has a length of 120 to 220 mm and an outer diameter of 31 to 33 mm.

4. The heat input buffer boiler according to claim 1, characterized in that: The ratio of the length of the L-shape of the output pipe is between 1:4.5 and 1:5.

5.

5. The heat input buffer boiler according to claim 1, characterized in that: The outer diameter of the output tube is 4-8 mm.

6. The heat input buffer boiler according to claim 1, characterized in that: The output pipe has an arc transition at its bend.

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