Gas-liquid exchange device

Abstract

The utility model discloses a gas-liquid exchange device which comprises a gas-liquid exchange container, the gas-liquid exchange container is connected with a water inlet structure, a gas outlet structure is arranged at the top of the gas-liquid exchange container, and a water drainage structure is arranged at the bottom of the gas-liquid exchange container. The utility model has the advantages of no need of an air pump, quietness, economy, compactness and durability.

Description

TECHNICAL FIELD

[0001] The utility model relates to bathing foaming device technical field especially, it relates to a gas-liquid exchange device. BACKGROUND

[0002] Traditional bathing foaming device is generally based on the principle of water gas mixing, wherein the supply of gas depends on the electric air pump, and the water source is generally connected to the tap water system. However, this traditional scheme has many limitations, which seriously affects the user experience and product life.

[0003] Firstly, the traditional electric air pump will produce obvious noise pollution in the working process, which not only interferes with the user's enjoyment of the quiet bathing atmosphere, but also may cause adverse effects on the surrounding environment. Secondly, the manufacturing cost of the air pump itself is relatively high, which increases the overall cost of the product, and is not conducive to market promotion and popularization. In addition, the volume of the air pump is relatively large, which occupies a considerable part of the assembly space, limits the flexibility of product design, and also makes the product overall look bulky. Finally, since the air pump works in a humid environment for a long time, its internal components are easily damaged by moisture, resulting in high product failure rate, increased maintenance cost, and shortened product life.

[0004] Therefore, it is necessary to further improve and perfect the prior art to overcome these shortcomings, and the utility model is made based on this situation. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at overcoming the deficiencies of the prior art, and provides a gas-liquid exchange device without air pump and more quiet, economical, compact and durable.

[0006] The utility model is implemented through the following technical solutions:

[0007] To solve the above technical problems, the utility model provides a gas-liquid exchange device, which comprises a gas-liquid exchange container, the gas-liquid exchange container is connected with a water inlet structure, the top of the gas-liquid exchange container is provided with a gas outlet structure, and the bottom of the gas-liquid exchange container is provided with a drainage structure.

[0008] To further solve the technical problems to be solved by the utility model, the utility model provides a gas-liquid exchange device, wherein the water inlet structure comprises a Venturi tube, the output end of the Venturi tube is provided with a water outlet end communicating with the inner cavity of the gas-liquid exchange container, the sidewall of the throat of the Venturi tube is provided with a gas supplement pipe communicating with the inner cavity of the Venturi tube and the outside, and the gas supplement pipe is connected with a first gas supplement one-way valve for inward air intake.

[0009] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of gas-liquid exchange device, the air outlet structure includes air outlet pipeline, one end of the air outlet pipeline is located in the top of gas-liquid exchange container inner chamber, the other end of the air outlet pipeline is equipped with gas constant flow valve.

[0010] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of gas-liquid exchange device, the gas constant flow valve includes valve seat, inlet, outlet and valve cavity arranged between inlet and outlet are equipped in the valve seat, the inner diameter of the valve cavity gradually reduces from inlet to outlet direction, valve core is arranged in the valve cavity and can move therein;When gas flow is large, gas can drive valve core to move in valve cavity to outlet direction, and the air gap between valve core and valve cavity gradually reduces during the movement of valve core to outlet direction, to automatically limit gas flow velocity;When gas flow is small, valve core will fall back to inlet direction, to increase air gap, and then automatically increase gas flow velocity.

[0011] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of gas-liquid exchange device, the valve core and valve seat are equipped with elastic reset member elastically pushing valve core to inlet direction.

[0012] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of gas-liquid exchange device, the valve cavity is arranged along up-down direction, and inlet is below and outlet is above;Valve core can automatically fall back to inlet direction by gravity.

[0013] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of gas-liquid exchange device, the valve seat is further equipped with drainage port below inlet, and drainage one-way valve is arranged at drainage port.

[0014] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of gas-liquid exchange device, the drainage structure includes drainage pipe arranged at the bottom of gas-liquid exchange container, and drainage valve is arranged on drainage pipe, and second air supplement one-way valve is arranged at the top of gas-liquid exchange container.

[0015] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of gas-liquid exchange device, the bottom of gas-liquid exchange container is further equipped with water outlet structure.

[0016] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of gas-liquid exchange device, the water outlet structure includes water outlet pipeline, one end of the water outlet pipeline is stretched to the bottom of gas-liquid exchange container inner chamber, and water constant flow valve is arranged at the other end of the water outlet pipeline.

[0017] Compared with the prior art, the gas-liquid exchange device has the following advantages:

[0018] The utility model provides a kind of gas-liquid exchange device, water is introduced into container to replace air in container to realize gas output, without traditional electric air pump, to effectively solve the problems of big noise, high cost, large size, easy to damage and high maintenance cost of gas pump in prior art.In addition, the utility model also ingeniously designs Venturi tube air supply structure and constant flow valve, further improves the performance and use experience of the device. BRIEF DESCRIPTION OF DRAWINGS

[0019] The specific embodiments of the utility model will be further described in detail below in combination with drawings, wherein:

[0020] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0021] Figure 2 It is the exploded schematic diagram of the utility model;

[0022] Figure 3 It is the gas-liquid exchange container stereoscopic sectional view one;

[0023] Figure 4 It is the gas-liquid exchange container stereoscopic sectional view two;

[0024] Figure 5 It is the sectional view of gas constant flow valve;

[0025] Figure 6 It is the structure principle schematic diagram of the utility model. DETAILED DESCRIPTION

[0026] In order to make those skilled in the art better understand the technical scheme of the utility model, the utility model will be further described in detail below in combination with drawings and specific embodiments.

[0027] The utility model provides a kind of gas-liquid exchange device, can effectively solve the problems of traditional gas pump device in noise, cost, size and maintenance etc..The utility model is applicable to shower gel, shampoo, kitchen detergent, hand sanitizer, toilet foam shield and other foaming devices.

[0028] As Figures 1 to 6 Indicated, the gas-liquid exchange device includes a gas-liquid exchange container 1.The container is connected with water inlet structure 2, for introducing water into container.Inlet structure 3 is arranged at the top of container, for discharging air replaced by water.Further, the gas-liquid exchange container 1 bottom is provided with drainage structure 5, for draining, i.e. emptying container to use again.

[0029] The water inlet structure 2 is connected to a water source, such as a tap water system. When water enters the gas-liquid exchange container 1, the air inside the container is compressed and discharged through the gas outlet structure 3. The discharged gas and water can mix with shower gel, etc., to produce rich foam for bathing.

[0030] Once the air in the upper part of the gas-liquid exchange container 1 is exhausted, gas-liquid exchange can no longer be carried out. It is necessary to open the drainage structure 5 to drain the water and add some air in preparation for the next gas-liquid exchange.

[0031] Water inlet structure:

[0032] The water inlet structure 2 incorporates the Venturi effect, and its core component is a Venturi tube 21. The input end of the Venturi tube 21 is connected to the tap water system and is equipped with an inlet valve to control the water flow. The output end 211 of the Venturi tube 21 is connected to the inner cavity of the gas-liquid exchange container 1.

[0033] Typically, a Venturi tube consists of the following parts: an inlet section, a constriction section, a throat, and a diffuser section. The inlet section is a short, round tube with a diameter of D; the constriction section is a tapered tube with a cone angle of approximately 21° ± 2°; the throat is a short, straight tube with a diameter of approximately 1 / 3 to 1 / 4 of D; and the diffuser section is a tapered tube with a cone angle of 8° to 15°.

[0034] To replenish the air in the gas-liquid exchange container 1 and prolong the gas output time, an air supply pipe 22 is provided on the throat side wall of the Venturi tube 21. The air supply pipe 22 is connected to a one-way inward air supply check valve 221 to ensure that air can only enter the Venturi tube 21 and will not flow back. When water flows through the Venturi tube 21, a negative pressure is generated at the throat, thereby drawing in outside air through the air supply pipe 22 and the check valve 221 into the gas-liquid exchange container 1.

[0035] Exhaust structure:

[0036] The gas outlet structure 3 includes a gas outlet pipe 31 and a gas constant flow valve 32. One end of the gas outlet pipe 31 is located at the top of the inner cavity of the gas-liquid exchange container 1, and the other end is connected to the gas constant flow valve 32.

[0037] The constant flow valve 32 is used to maintain a substantially constant output gas flow rate. It includes a valve seat 321, an inlet 322, an outlet 323, and a valve chamber 324. The inner diameter of the valve chamber 324 gradually decreases from the inlet 322 to the outlet 323, and a valve core 325 that can move within it is placed therein. The position of the valve core 325 is affected by the airflow magnitude, the elastic reset element 326 (e.g., a spring), and / or its own weight, thereby dynamically adjusting the gas clearance to achieve constant flow output.

[0038] When the airflow increases, the valve core 325 is pushed towards the outlet 323, reducing the air gap and thus limiting the airflow velocity. When the airflow decreases, the valve core 325 falls back to the inlet 322 under the action of the elastic reset element 326 (such as a spring) and / or its own gravity, increasing the air gap and thus increasing the airflow velocity. This design can effectively stabilize the output airflow.

[0039] Preferably, the valve chamber 324 is arranged vertically, with the inlet 322 at the bottom and the outlet 323 at the top. In this way, when the airflow decreases, the valve core 325 can automatically fall back under its own gravity, that is, the valve core 325 is directly reset by gravity without the need for an elastic reset element 326.

[0040] Among them, the valve core 325 is preferably in the shape of a ball, an R-shaped part, or a cylindrical part.

[0041] Preferably, the valve seat 321 is further provided with a drain outlet 328 located below the inlet 322, and a drain check valve 327 is provided at the drain outlet 328. The gas entering the constant flow valve 32 may carry some moisture, which can be discharged through the drain outlet 328 to prevent moisture accumulation. The drain check valve 327 ensures one-way drainage. Of course, it should be noted that the other end of the drain outlet 328 is connected to the drain valve 53. When the drain valve 53 is closed, the drain check valve 327 will not leak gas.

[0042] Furthermore, the valve seat 321 is composed of a lower valve seat 3211 and an upper valve seat 3212. The upper end of the lower valve seat 3211 is inserted into the inner cavity of the upper valve seat 3212 and is provided with an annular support platform 3213 to support the valve core 325. The support platform is provided with a vent hole or vent gap 3214 so that it will not be completely blocked, so as to ensure the smooth flow of small airflow.

[0043] Drainage structure:

[0044] To facilitate the cleaning of the air-liquid exchange container 1 and the replenishment of air, the device is equipped with a drainage structure 5. The drainage structure 5 includes a drain pipe 51, which is located at the bottom of the air-liquid exchange container 1 and is equipped with a drain valve 53. Furthermore, a second air replenishment check valve 52 is provided at the top of the container for replenishing air during the drainage process.

[0045] Among them, the drain valve 5 is preferably a solenoid valve, a manual valve, or the like.

[0046] To facilitate more efficient drainage, a sinkhole 11 is provided at the bottom of the inner cavity of the gas-liquid exchange container 1, and the drain pipe 51 is located at the bottom of the sinkhole 11.

[0047] Water outlet structure:

[0048] The water outlet structure 4 includes a water outlet pipe 41 and a water constant flow valve 42 (similar in structure to a gas constant flow valve, or a commercially available constant flow valve can be used, which will not be described in detail here). One end of the water outlet pipe 41 extends into the bottom of the inner cavity of the gas-liquid exchange container 1, and the other end is connected to the water constant flow valve 42 to control the water outlet speed.

[0049] The water outlet structure 4 is mainly used to output a small amount of liquid for other functions, such as participating in foaming. However, the speed of the water flow output by the water outlet structure 4 must be slower than the speed of the water flow input by the water inlet structure 2.

[0050] Through the above structural design, the gas-liquid exchange device of this utility model can effectively replace the traditional air pump, and realize a quiet, low-cost, small-volume and easy-to-maintain bath foaming function.

Claims

1. A gas-liquid exchange device, characterized in that: It includes a gas-liquid exchange container (1), which is connected to a water inlet structure (2), a gas outlet structure (3) at the top of the gas-liquid exchange container (1), and a drainage structure (5) at the bottom of the gas-liquid exchange container (1); a second gas replenishment check valve (52) is provided at the top of the gas-liquid exchange container (1).

2. The gas-liquid exchange device according to claim 1, characterized in that: The water inlet structure (2) includes a venturi tube (21). The output end of the venturi tube (21) is provided with a water outlet (211) that connects to the inner cavity of the gas-liquid exchange container (1). The side wall of the throat of the venturi tube (21) is provided with a gas supply pipe (22) that connects the inner cavity of the venturi tube (21) and the outside. The gas supply pipe (22) is connected to a first gas supply check valve (221) that allows one-way air intake.

3. The gas-liquid exchange device according to claim 1, characterized in that: The gas outlet structure (3) includes a gas outlet pipe (31), one end of which is located at the top of the inner cavity of the gas-liquid exchange container (1), and the other end of which is provided with a gas constant flow valve (32).

4. The gas-liquid exchange device according to claim 3, characterized in that: The gas constant flow valve (32) includes a valve seat (321), which has an inlet (322), an outlet (323), and a valve cavity (324) between the inlet (322) and the outlet (323). The inner diameter of the valve cavity (324) gradually decreases from the inlet (322) to the outlet (323). The valve cavity (324) has a valve core (325) that can move therein. When the airflow increases, the gas can drive the valve core (325) to move towards the outlet (323) in the valve cavity (324). During the movement of the valve core (325) towards the outlet (323), the air gap between it and the valve cavity (324) gradually decreases, thereby automatically limiting the airflow velocity. When the airflow decreases, the valve core (325) will fall back towards the inlet (322), thereby increasing the air gap and automatically increasing the airflow velocity.

5. A gas-liquid exchange device according to claim 4, characterized in that: An elastic reset member (326) is provided between the valve core (325) and the valve seat (321) to elastically press the valve core (325) in the direction of the inlet (322).

6. A gas-liquid exchange device according to claim 4 or 5, characterized in that: The valve chamber (324) is arranged in the vertical direction, with the inlet (322) at the bottom and the outlet (323) at the top; the valve core (325) can automatically fall back towards the inlet (322) by gravity.

7. A gas-liquid exchange device according to claim 4, characterized in that: The valve seat (321) is also provided with a drain outlet (328) located below the inlet (322), and a drain check valve (327) is provided at the drain outlet (328).

8. A gas-liquid exchange device according to claim 1, characterized in that: The drainage structure (5) includes a drain pipe (51) located at the bottom of the gas-liquid exchange container (1) and a drain valve (53) located on the drain pipe (51).

9. A gas-liquid exchange device according to claim 1, characterized in that: The bottom of the gas-liquid exchange container (1) is also provided with a water outlet structure (4).

10. A gas-liquid exchange device according to claim 9, characterized in that: The water outlet structure (4) includes a water outlet pipe (41), one end of which extends to the bottom of the gas-liquid exchange container (1), and the other end of which is provided with a water constant flow valve (42).

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