CN202070300U

CN202070300U - Venturi mixer

Info

Publication number: CN202070300U
Application number: CN2011201264013U
Authority: CN
Inventors: 杨才
Original assignee: Individual
Current assignee: Beijing Yongtai Fire Fighting Technology Co Ltd
Priority date: 2011-04-26
Filing date: 2011-04-26
Publication date: 2011-12-14
Anticipated expiration: 2021-04-26

Abstract

The utility model relates to a venturi mixer which comprises a straight tubular main body, wherein a high-pressure fluid inlet is formed at one end of the main body; a through hole is formed on the side wall of the main body close to the high-pressure fluid inlet; a tubular clock striker is sleeved in the main body at an inlet end; the venturi mixer further comprises a one-way valve communicated with the through hole and a regulating valve; and the one-way valve and the regulating valve are serially connected with each other. In the venturi mixer, the regulating valve can control the quantity of other fluid entering into the main body or a mixing ratio of other fluid and high-pressure fluid. When the venturi mixer is used or stopped, the one-way valve can efficiently prevent the high-pressure fluid flowing to an assistant channel.

Description

Venturi mixer

Technical field

The utility model relates to the mixing apparatus field, relates in particular to a kind of venturi mixer.

Background technology

Existing venturi mixing arrangement, all be the high-pressure fluid that utilizes inlet port,, eject from outlet after passing induction chamber by ultrahigh speed nozzle ejection, and the drainage tube that is communicated with induction chamber is introduced other fluid in the induction chamber of band negative pressure, output behind the high-pressure fluid mixing.Utilize the operation principle of venturi mixer, two kinds of different liquids, two kinds of gas with various or gas-liquid can be mixed in actual applications, mixing arrangement enable and stop to rely on high-pressure fluid whether injection decides.

The structure of venturi mixer generally all is the straight tube structure that has bypass, the material of opening in the bypass of back at blender can enter in the straight tube automatically, but bypass duct when closing causes the pollution to bypass fluid owing to for negative pressure state, cause the fluid in the straight tube to be back in the bypass.

The utility model content

The utility model provides a kind of venturi mixer at above-mentioned the deficiencies in the prior art, can prevent that blender high-pressure fluid when closing from can not enter bypass, causes the pollution to bypass fluid.

For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of venturi mixer, comprise the straight tube-like main body, and an end of described main body is the inlet of high-pressure fluid, is provided with through hole near the main body wall that enters the mouth; Being arranged with tubular bell in the main body of described arrival end hangs down; This blender also includes check valve and the control valve that is communicated with through hole, and described check valve and control valve are for being connected in series.

Preferably, the arrival end of described main body is connected with joint, the internal diameter that the internal diameter of described joint hangs down greater than clock.

Preferably, the end that dams of described check valve is connected with through hole.

Preferably, described clock hangs down length greater than the distance of inlet to the through hole.

Preferably, described clock hangs down external diameter in the through hole less than the external diameter in the main body porch.

Preferably, the middle part internal diameter of described main body is less than the internal diameter at two ends.

Preferably, described main body is identical near the internal diameter of arrival end.

Preferably, the length of described internal diameter same section is greater than the vertical length of clock.

Preferably, the vertical lateral wall of described clock is a frustum.

Preferably, the lateral wall of the vertical end of described clock extends projection, is resisted against the arrival end of main body.

Compared with prior art, the advantage that the utlity model has: venturi mixer is provided with the straight tube-like main body, is the inlet of high-pressure fluid at main body one end, is provided with through hole near the main body wall that enters the mouth, be connected with check valve and control valve, form the subaisle that other fluid enters; Be arranged with tubular bell in the main body of arrival end and hang down, be set in the main body because clock hangs down, thus its internal diameter less than inner major diameter, flow velocity can increase when high-pressure fluid hung down through clock, when flowing out clock when hanging down, clock hung down produces negative pressure near the outlet; Thereby cause other fluid from subaisle, to enter main body, mix, flow out main body then together with high-pressure fluid.

The utility model in use can be controlled the amount that enters other fluid in the main body by control valve, or with the mixed proportion of high-pressure fluid; And when using or stopping blender, check valve can end high-pressure fluid effectively and flow to subaisle.

Arrival end in main body adds joint, the internal diameter that its internal diameter hangs down greater than clock, and when the clock that high-pressure fluid flows to little internal diameter through the large diameter joint hung down, its speed can increase, and has increased the speed that high-pressure fluid ejection clock hangs down, and had increased near the negative pressure the ejiction opening.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Description of reference numerals:

The 1-joint;

The 2-clock hangs down;

The 3-main body;

The 4-check valve;

The 5-control valve.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described.

A kind of venturi mixer as shown in Figure 1 has a straight tube-like main body 3, is the inlet of high-pressure fluid at the right-hand member of main body 3, and a sheathed tubular bell hangs down 2, adds a joint 1 again, and joint 1 is with clock 2 right-hand members that tightly are pressed against main body 3 that hang down.

And on the sidewall of main body 3, offering a through hole, this through hole is communicated with check valve 4, control valve 5 successively, forms the subaisle that other fluid enters; Because clock vertical 2 is set in the main body, therefore its internal diameter is less than inner major diameter, when entering clock through joint 1, high-pressure fluid hangs down after 2, flow velocity can increase relatively, near the position of ejection clock vertical 2, form bigger negative pressure, and be located near the through hole of vertical 2 ejiction openings of clock, because other fluid can suck in the main body along subaisle under the suction function, mix with high-pressure fluid.

Check valve 4 directly is communicated with through hole, enters subaisle for avoiding high-pressure fluid, and the end that dams of check valve 4 links to each other with through hole; The other end of check valve 4 is connected with control valve 5, and control valve 5 can be controlled the flow that enters other fluids in the main body 3, to the mixing of two kinds of fluid proportionings of the accurate restriction of ask for something, can realize by regulating control valve 5.

The length of clock vertical 2 is greater than the distance of main body arrival end to the through hole, and high-pressure fluid just can not backflow to through hole when the ejection clock hangs down, and has just formed the negative pressure mixed zone between through hole and clock vertical 2, and two kinds of fluids can fully be mixed.

The external diameter of clock vertical 2 diminishes gradually from main body porch to through hole, and more preferably, the outer wall of clock vertical 2 is a frustum, so the blending space between through hole and the clock vertical 2 is bigger, helps the quick mixing of two kinds of fluids.Clock vertical 2 extends projections at end lateral walls of main body porch, forms flange and is resisted against the main body arrival end, increases clock vertical 2 and main body 3 connection stability.

The internal diameter of main body 3 is uneven, its two ends internal diameter is greater than the mid portion internal diameter, and main body is identical near the internal diameter of arrival end, the length of same inner diameter is greater than the vertical length of clock, high-pressure fluid flow velocitys from vertical 2 ejections of clock, in the cavity between clock vertical 2 and through hole and body midsection are divided, fully mix, slow down through the main body port of export then and flow out with other fluid.

The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a venturi mixer comprises the straight tube-like main body, it is characterized in that: an end of described main body is the inlet of high-pressure fluid, is provided with through hole near the main body wall that enters the mouth; Being arranged with tubular bell in the main body of described arrival end hangs down; This blender also includes check valve and the control valve that is communicated with through hole, and described check valve and control valve are for being connected in series.

2. venturi mixer as claimed in claim 1 is characterized in that: the arrival end of described main body is connected with joint, the internal diameter that the internal diameter of described joint hangs down greater than clock.

3. venturi mixer as claimed in claim 1 is characterized in that: the end that dams of described check valve is connected with through hole.

4. venturi mixer as claimed in claim 1 is characterized in that: described clock hangs down length greater than the distance of inlet to the through hole.

5. venturi mixer as claimed in claim 4 is characterized in that: described clock hangs down external diameter in the through hole less than the external diameter in the main body porch.

6. venturi mixer as claimed in claim 1 is characterized in that: the middle part internal diameter of described main body is less than the internal diameter at two ends.

7. venturi mixer as claimed in claim 6 is characterized in that: described main body is identical near the internal diameter of arrival end.

8. venturi mixer as claimed in claim 7 is characterized in that: the length of described internal diameter same section is greater than the vertical length of clock.

9. venturi mixer as claimed in claim 4 is characterized in that: the lateral wall that described clock hangs down is a frustum.

10. as claim 1 or 9 described venturi mixers, it is characterized in that: the lateral wall of the vertical end of described clock extends projection, is resisted against the arrival end of main body.