Multi-stage pressure relief espresso machine condenser

Abstract

The utility model belongs to espresso coffee machine steam pressure relief technical field, concretely relates to a kind of multi-section pressure relief's espresso coffee machine condensing box, including box body, and be set on the steam inlet and gas-liquid discharge port of the box body, steam enters box body by the steam inlet and flows out the gas-liquid discharge port after pressure relief.The utility model connects box body at the end valve body of the steam condensing system of domestic espresso coffee machine, so that the steam that gushes first from steam inlet enters box body and is condensed after multiple pressure relief and part, then from gas-liquid discharge port discharge, so gushing steam pressure can be slowed down, to effectively improve the use safety of coffee machine.

Description

Technical Field

[0001] This utility model belongs to the field of coffee machine steam depressurization technology, specifically relating to a multi-stage depressurization condenser box for espresso machines. Background Technology

[0002] After repeated use of the heating function, existing home espresso machines produce a large amount of steam that surges out from the end valve of the steam condensation system. Because this steam is under pressure, it can easily cause harm to the user.

[0003] In view of this, the present invention provides a multi-stage pressure relief condenser box for espresso machines to solve the above problems. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage depressurization espresso machine condenser box, comprising a box body, and a steam inlet and a gas-liquid outlet disposed on the box body, wherein steam enters the box body through the steam inlet and flows out through the gas-liquid outlet after being depressurized at least once.

[0005] Preferably, the interior of the box is provided with a pressure relief space for depressurizing the steam, and the pressure relief space is connected to the steam inlet and the gas-liquid outlet.

[0006] Preferably, the gas-liquid outlet is positioned on the box body in a direction opposite to the natural upward trend of steam in the depressurization space, so as to force the steam to flow out of the gas-liquid outlet in a direction opposite to its natural upward trend after depressurization in the depressurization space.

[0007] Preferably, the pressure relief space includes a pressure relief channel whose beginning and end are respectively connected to the steam inlet and the gas-liquid outlet.

[0008] Preferably, the cross-sectional area of ​​the pressure relief channel increases sequentially in the direction of steam flow.

[0009] Preferably, the pressure relief channel includes at least two interconnected guide channels, which can be redirected at the connection between the guide channels when steam flows.

[0010] Preferably, the pressure relief channel is provided with a resistance section along its extension direction to increase the resistance to steam flow.

[0011] Preferably, the number of resistance sections increases sequentially in the direction of steam flow.

[0012] Preferably, the resistance section includes protrusions spaced apart on the inner wall of the pressure relief channel.

[0013] Preferably, the protrusion includes a cylindrical structure extending from the bottom of the pressure relief channel toward its opposite surface and / or a rib-like structure extending from the sidewall of the pressure relief channel toward its opposite surface.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention connects a housing to the end valve of the steam condensation system in a home espresso machine, allowing the ejected steam to first enter the housing through the steam inlet, undergo multiple pressure reliefs and partial condensation, and then exit through the gas-liquid outlet. This reduces the pressure of the ejected steam and effectively improves the safety of the coffee machine. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a bottom view of the structure of this utility model;

[0019] Figure 3 This is a top view of the lower cover structure of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the lower cover of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the upper cover of this utility model.

[0022] In the diagram: 1. Box body; 2. Steam inlet; 3. Gas-liquid outlet; 4. Pressure relief channel; 5. Resistance section; 11. Lower cover; 12. Upper cover; 121. Fitting shaft; 13. Positioning ear; 41. Guide channel; 51. Protrusion; 511. Rib-like structure; 512. Cylindrical structure; 5121. Fitting groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model relates to a multi-stage pressure relief condenser for an espresso machine, such as... Figures 1-5 As shown, it includes a box body 1, and a steam inlet 2 and a gas-liquid outlet 3 connected to the box body 1.

[0025] The box 1 has a pressure relief space inside for depressurizing the steam at least once. The steam ejected from the valve body at the end of the coffee machine's condensation system enters the pressure relief space inside the box 1 from the steam inlet 2. After being depressurized in the pressure relief space, the steam is discharged from the gas-liquid outlet 3, thereby reducing the pressure of the ejected steam and improving the safety of using the coffee machine.

[0026] Furthermore, to better reduce the pressure of the ejected steam, in this embodiment, the gas-liquid outlet 3 is positioned on the housing 1 in a direction opposite to the natural upward trend of steam within the pressure relief space. That is, when high-pressure steam continuously enters the pressure relief space within the housing 1 through the steam inlet 2, it will first undergo active pressure reduction within the larger volume of the pressure relief space. Simultaneously, the steam will converge at the top of the pressure relief space based on its density characteristics and the position of the gas-liquid outlet 3. A portion of the steam will condense upon contact with the inner wall of the pressure relief space, resulting in a secondary passive pressure reduction before finally being discharged from the gas-liquid outlet 3. Additionally, if the ejected high-pressure steam cannot fill the pressure relief space, under the aforementioned secondary pressure reduction principle, no significant steam discharge will be felt at the gas-liquid outlet 3.

[0027] Specifically, the pressure relief space includes a pressure relief channel 4 whose beginning and end are respectively connected to the steam inlet 2 and the gas-liquid outlet 3; the pressure relief channel 4 includes at least two guide channels 41 connected in series, and the steam can be redirected at the connection between the guide channels 41 when it flows through the guide channels 41; such as Figures 3-4 As shown, in this embodiment, there are seven guide channels 41 connected in series to form a seven-channel design. Preferably, the seven guide channels 41 are connected end to end in parallel. At this time, the flow direction of adjacent guide channels 41 can be reversed by about 180° to form a connection. When the high-pressure steam flows from the first guide channel 41 connected to the steam inlet 2 to the subsequent guide channels 41, a U-shaped turn will be completed between the adjacent guide channels 41. This "anti-gravity" design effectively increases the resistance and path length of the steam flow, forcing the steam flow to depressurize while also making full contact with the inner wall of the box 1 for condensation and passive depressurization.

[0028] Furthermore, the cross-sectional area of ​​the pressure relief channel 4 increases sequentially in the direction of steam flow, that is, the cross-sectional area of ​​the series guide channels 41 also increases sequentially in the direction of steam flow. Therefore, the guide channel 41 near the steam inlet 2 is narrower, while the guide channel 41 near the gas-liquid outlet 3 is wider. Thus, through this gradually expanding design, the steam can naturally expand and slow down during the flow process, greatly smoothing the pressure relief process and improving stability and reliability.

[0029] Preferably, a resistance section 5 for increasing steam flow resistance is provided within the pressure relief channel 4 along its extending direction, such as... Figures 3-4 As shown, the resistance section 5 includes protrusions 51 spaced apart on the inner wall of the pressure relief channel 4. Each protrusion 51 includes a cylindrical structure 511 extending from the bottom of the pressure relief channel 4 towards its opposite surface and / or a rib-like structure 512 extending from the sidewall of the pressure relief channel 4 towards its opposite surface. The cylindrical structure 511 and the rib-like structure 512 can obstruct the steam flow in the direction of steam flow, further slowing down the steam flow rate. Simultaneously, the formation of the resistance section 5 can increase the contact area between the pressure relief channel 4 and the steam, allowing the steam to fully contact the inner wall of the pressure relief channel 4 while flowing slowly, enabling rapid condensation and passive pressure reduction.

[0030] In another embodiment, the box body 1 includes an upper cover 12 and a lower cover 11, which can be tightly connected together by a cylindrical structure 512.

[0031] Specifically, the upper cover 12 extends from the surface of the lower cover 11 and is provided with a fitting shaft 121 that is axially adapted to the cylindrical structure 512. A fitting groove 5121, slightly smaller than the fitting shaft 121, is axially formed at the top of the cylindrical structure 512. When the upper cover 12 and the lower cover 11 are installed, the fitting shaft 121 can be interference-fitted into the fitting groove 5121 to achieve a tight fit connection between the upper cover 12 and the lower cover 11. Finally, the enclosing edges of the upper cover 12 and the lower cover 11 are welded together by ultrasonic welding or other methods to form the entire sealed box 1. By combining the tight fit and welding, the explosion-proof function of the box 1 can be achieved, further improving the safety performance in use.

[0032] In another embodiment, to facilitate the installation of the box body 1, several commonly used positioning ears 13 for installation can be provided on the periphery of the box body 1. The positioning ears 13 are provided with through holes, and the box body 1 can be easily disassembled and assembled with other suitable locations such as coffee machines through the cooperation of fasteners.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-stage pressure relief condenser for an espresso machine, characterized in that: It includes a box body (1), and a steam inlet (2) and a gas-liquid outlet (3) provided on the box body (1). Steam enters the box body (1) through the steam inlet (2), is depressurized at least once, and then flows out through the gas-liquid outlet (3).

2. The multi-stage pressure relief espresso machine condenser box according to claim 1, characterized in that: The box body (1) has a pressure relief space inside for relieving steam pressure, and the pressure relief space is connected to the steam inlet (2) and the gas-liquid outlet (3).

3. The multi-stage pressure relief espresso machine condenser box according to claim 2, characterized in that: The gas-liquid outlet (3) is positioned on the box body (1) in a direction opposite to the natural upward trend of steam in the depressurization space, so as to force the steam to flow out of the gas-liquid outlet (3) in a direction opposite to its natural upward trend after depressurization in the depressurization space.

4. The multi-stage depressurization espresso machine condenser box according to claim 2 or 3, characterized in that: The pressure relief space includes a pressure relief channel (4) whose beginning and end are respectively connected to the steam inlet (2) and the gas-liquid outlet (3).

5. The multi-stage pressure relief espresso machine condenser box according to claim 4, characterized in that: The cross-sectional area of ​​the pressure relief channel (4) increases sequentially in the direction of steam flow.

6. The multi-stage pressure relief espresso machine condenser box according to claim 4, characterized in that: The pressure relief channel (4) includes at least two interconnected guide channels (41), which can change direction at the connection between the guide channels (41) when steam flows.

7. The multi-stage pressure relief espresso machine condenser box according to claim 4, characterized in that: The pressure relief channel (4) is provided with a resistance section (5) along its extension direction to increase the resistance to steam flow.

8. The multi-stage pressure relief espresso machine condenser box according to claim 7, characterized in that: The number of resistance sections (5) increases sequentially in the direction of steam flow.

9. The multi-stage pressure relief espresso machine condenser box according to claim 7, characterized in that: The resistance section (5) includes protrusions (51) spaced apart on the inner wall of the pressure relief channel (4).

10. The multi-stage pressure relief espresso machine condenser box according to claim 9, characterized in that: The protrusion (51) includes a cylindrical structure (511) extending from the bottom of the pressure relief channel (4) toward its opposite surface and / or a ribbed structure (512) extending from the sidewall of the pressure relief channel (4) toward its opposite surface.

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