CN102688819A - Gas-liquid mixing type nozzle device - Google Patents

Abstract

The invention provides a gas-liquid mixing type nozzle device, which comprises a seat body with a first side surface, a second side surface, a third side surface, a sealing component, a throttling component and a nozzle. The seat body comprises a gas channel and a liquid channel which are concavely arranged on the first side surface, a liquid containing sunken part and a gas-liquid mixing sunken part which are concavely arranged on the second side surface and the third side surface respectively. The liquid channel penetrates through the liquid containing concave part from the first side surface, the gas channel and the liquid containing concave part respectively penetrate through the gas-liquid mixing concave part from the first side surface and the second side surface, and the liquid containing concave part is communicated with the gas-liquid mixing concave part through the first part. The closing component is arranged at the opening part of the liquid containing concave part, and the throttling component extends into the first part from the closing component to reduce the cross section area of the throttling component. The nozzle is an opening joined to the gas-liquid mixing recess.

Description

Gas-liquid mixing nozzle device

technical field

The present invention relates to a nozzle device, and more particularly to a gas-liquid mixing nozzle device having a throttling assembly that reduces the flow of liquid into a gas-liquid mixing recess.

Background technique

In a general nozzle device, its main function is to accelerate the fluid in it, so that the fluid can leave the nozzle at a faster speed, and the fluid used in the nozzle can be gas or liquid.

In addition, in a general nozzle device, a seat is usually included to fix the nozzle and provide the required flow channel for the fluid inside, so that the fluid provided by the fluid supply source can pass through the flow channel in the seat. reach the nozzle.

However, when the fluid used in the nozzle device is liquid, since the liquid contains a certain amount of impurities, fouling and blockage are likely to occur after a long period of use. Among them, the above-mentioned fouling is usually deposited on the outlet of the nozzle. Therefore, in order to solve the clogging situation, the nozzle needs to be removed for cleaning. And because the inner space of nozzle is narrow and narrow, so the difficulty of cleaning operation of nozzle has been promoted.

Contents of the invention

Therefore, the object of the present invention is to provide a gas-liquid mixing nozzle device, which has a throttling assembly that can reduce the flow rate of liquid entering the gas-liquid mixing recess, so it can reduce the probability of impurities in the liquid entering the gas-liquid mixing recess , and then reduce the impurity in the liquid to clog the nozzle.

According to an embodiment of the present invention, a gas-liquid mixing nozzle device is provided. The gas-liquid mixing nozzle device includes a seat body, a closing component, a throttling component and a nozzle. The base body includes first, second and third sides, and the base body also includes a gas passage and a liquid passage recessed on the first side, a liquid-accommodating recess recessed on the second side, and a recessed portion on the third side. The gas-liquid mixing depression. The gas channel and the liquid channel are used to transmit gas and liquid respectively, and the liquid-accommodating recess has a first part and a second part that communicate with each other, wherein the second part is adjacent to the second side, and the liquid channel is The liquid accommodating recessed part penetrates from the first side, and the liquid accommodating recessed part is mainly used for accommodating the above-mentioned liquid. In addition, the gas channel and the recessed part for containing the liquid penetrate through the recessed part for gas-liquid mixing from the first side and the second side respectively, and the recessed part for containing the liquid communicates with the recessed part for gas-liquid mixing through the above-mentioned first part. The above-mentioned closing component is set in the opening part of the second part of the recessed part for accommodating the liquid, and the throttling component is joined to the closing part and protrudes into the first part of the above-mentioned recessed part for accommodating the liquid, thereby reducing the size of the first part of cross-sectional area. Furthermore, the nozzle is connected to the opening of the gas-liquid mixing recess, so that the liquid and gas in the gas-liquid mixing recess can enter the inner space of the nozzle.

The advantage of the present invention is that the throttling assembly reduces the probability of impurities in the liquid entering the gas-liquid mixing recess, and then the fouling produced by the impurities in the liquid is mainly attached to the throttling assembly. Therefore, when encountering clogging, it is only necessary to remove the throttling assembly for cleaning. Compared with cleaning nozzles, the structure of the throttling assembly is relatively simple, so the cleaning and maintenance of the gas-liquid mixing nozzle device can be reduced program, thereby saving a lot of time and cost.

Description of drawings

In order to have a better understanding of the viewpoints of the present invention, please refer to the above detailed description together with the corresponding drawings. It is emphasized that, in accordance with the standard practice in the industry, the various features of the drawings are not drawn to scale. In fact, the dimensions of the various features may be arbitrarily expanded or reduced for clarity of illustrating the above-described embodiments. The contents of relevant drawings are explained as follows.

FIG. 1A and FIG. 1B are schematic cross-sectional views showing a gas-liquid mixing nozzle device according to an embodiment of the present invention, and a schematic cross-sectional view along the section line 1B-1B in FIG. 1A;

2A and FIG. 2B are schematic cross-sectional views illustrating a gas-liquid mixing nozzle device according to another embodiment of the present invention, and a schematic cross-sectional view along the section line 2B-2B in FIG. 2A;

3 is a graph showing the uniformity of water flow distribution corresponding to different total liquid flows of a plurality of gas-liquid mixing nozzle devices according to a comparative example of the present invention;

4 to 6 are graphs respectively illustrating the water flow distribution uniformity of a plurality of gas-liquid mixing nozzle devices corresponding to different total liquid flows according to various embodiments of the present invention.

[Description of main component symbols]

100: Gas-liquid mixing nozzle device 100a: Gas-liquid mixing nozzle device

102: seat body 102a: first side

102b: Second Side 102c: Third Side

104: Closed component 106: Throttle component

108: nozzle 108a: inner space

110: throttle assembly 110a: end

110b: first channel 110c: second channel

200: Gas Channels 202: Part Three

202a: Inclined Surfaces 204: Part Four

300: liquid channel 400: accommodating liquid recess

402: Part 1 402a: Inclined Surfaces

404: Part II 404a: Opening

500: Gas-liquid mixing depression 500a: Opening

1B-1B: Secant 2B-2B: Secant

A: Arrow B: Arrow

Detailed ways

Please refer to FIG. 1A , which is a schematic cross-sectional view of a gas-liquid mixing nozzle device according to an embodiment of the present invention. The gas-liquid mixing nozzle device 100 includes a seat body 102 , a closing component 104 , a throttling component 106 and a nozzle 108 . In this embodiment, the base 102 includes a first side 102a, a second side 102b and a third side 102c, wherein the base 102 is substantially a regular cube, specifically, each side of the base 102 is plane, and any two of its adjacent sides are perpendicular to each other. However, in other embodiments, the base body may have other geometric structures, not limited to this embodiment, for example, the base body may include an arc-shaped curved surface. In addition, in order to provide proper strength to fix the nozzle 108, the seat body 102 can be made of metal. In order to avoid corrosion, the seat body 102 can also be made of stainless steel.

In the seat body 102 shown in FIG. 1A , it further includes a gas channel 200 , a liquid channel 300 , a recessed portion 400 for accommodating liquid, and a recessed portion 500 for gas-liquid mixing. The gas channel 200 and the liquid channel 300 are recessed on the first side surface 102a of the base body 102, wherein the gas channel 200 and the liquid channel 300 are respectively used to transmit gas and liquid. In certain embodiments, the gas channel 200 and the liquid channel 300 can be respectively connected to the gas supply source and the liquid supply source by one or more pipelines, so as to transmit the gas and the liquid to the nozzle 108 . In addition, the gas channel 200 and the liquid channel 300 can be manufactured by any known method, for example, a drill bit is used to drill holes on the first side 102 a of the base body 102 to manufacture the gas channel 200 and the liquid channel 300 .

The liquid accommodating recessed portion 400 is recessed on the second side surface 102b of the seat body 102 , wherein the liquid accommodating recessed portion 400 has a first portion 402 and a second portion 404 communicating with each other as shown in FIG. 1A . Wherein, the above-mentioned second portion 404 is adjacent to the second side 102b, while the first portion 402 is relatively far away from the second side 102b. In addition, the above-mentioned liquid channel 300 passes through the first side 102 a of the seat body 102 to accommodate the liquid recess 400 therein. More specifically, the liquid passage 300 is penetrated from the first side 102 a to the second portion 404 of the recessed portion 400 for accommodating the liquid. However, in other embodiments, the liquid channel 300 may also penetrate from the first side 102 a to the first portion 402 accommodating the liquid recess 400 . In the embodiment shown in FIG. 1A , the liquid accommodating recess 400 is mainly used for accommodating the liquid provided by the liquid channel 300 . In a specific embodiment, the liquid-receiving recess 400 can be manufactured by any known method as mentioned above, such as drilling.

As for the above-mentioned gas-liquid mixing recess 500 , it is recessed on the third side surface 102 c of the seat body 102 . The above-mentioned gas channel 200 and the recessed part 400 for containing the liquid penetrate the gas-liquid mixing recessed part 500 from the first side 102a and the second side 102b of the seat body 102 respectively, and the recessed part 400 for containing the liquid is formed by the first part 402 It communicates with the gas-liquid mixing recess 500 . In the embodiment shown in FIG. 1A , the gas from the gas channel 200 and the liquid from the liquid channel 300 are fully mixed in the gas-liquid mixing recess 500 before entering the nozzle 108 .

The above-mentioned closure component 104 is an opening 404 a disposed in the second portion 404 of the liquid-accommodating recess 400 . Wherein, the arrangement of the closing assembly 104 is mainly for the convenience of cleaning the scale deposited on the throttling assembly 106 . In a specific embodiment, the closure component 104 can be disposed on the opening 404a of the second portion 404 of the liquid accommodating recess 400 by screwing or fastening. However, the installation method (screwed or clamped) of the above-mentioned closure assembly 104 is well known to those skilled in the art, so no further description is given here.

In the embodiment shown in FIG. 1A , the throttling component 106 is engaged on the closing component 104, and wherein the throttling component 106 further protrudes into the first portion 402 of the accommodating liquid recess 400, so as to reduce the first portion 402 of cross-sectional area. In addition, please refer to FIG. 1A and FIG. 1B together, wherein FIG. 1B is a schematic cross-sectional view taken along the section line 1B-1B in FIG. 1A . In this embodiment, the throttling component 106 is a columnar body, and the columnar body and the wall surface of the first part 402 of the liquid-accommodating recess 400 form a flow channel as shown in FIG. The liquid in the part 400 enters the gas-liquid mixing recessed part 500 through this channel. In this embodiment, the throttling component 106 is welded to the closing component 104 . However, in a specific embodiment, the above-mentioned throttling component 106 can be connected to the closing component 104 by screwing or fastening.

As for the nozzle 108 in the embodiment shown in FIG. 1A, it is connected to the opening 500a of the gas-liquid mixing recess 500, that is, to the third side 102c of the seat 102, so that the gas-liquid mixing recess 500 The liquid and gas in the nozzle can enter the inner space 108a of the nozzle 108 .

In addition, in the embodiment shown in FIG. 1A , the first portion 402 of the liquid-accommodating recess 400 further includes an inclined surface 402a, wherein the inclined surface 402a makes the aperture of the first portion 402 move away from the second portion 404 (such as Arrow A) tapered. Moreover, the gas channel 200 further has a third part 202 and a fourth part 204, wherein the fourth part 204 is adjacent to the first side 102a of the base 102, and the gas channel 200 uses the third part 202 to mix the gas and liquid. The recessed portion 500 communicates. The third portion 202 of the gas passage 200 further includes an inclined surface 202a, and the inclined surface 202a makes the aperture of the third portion 202 tapered in a direction away from the fourth portion 204 (as indicated by arrow B). Wherein, the main purpose of the setting of the inclined surface 402a and the inclined surface 202a is to accelerate the liquid flowing through the first part 402 in the liquid containing recess 400 and the gas flowing through the third part 202 of the gas passage 200, thereby making The liquid and gas entering the gas-liquid mixing recess 500 can be mixed more quickly.

Please refer to FIG. 2A and FIG. 2B , which are respectively a schematic cross-sectional view of a gas-liquid mixing nozzle device according to another embodiment of the present invention, and a schematic cross-sectional view along the section line 2B-2B in FIG. 2A . In the embodiment of Fig. 2A and Fig. 2B, the change of each structure in the gas-liquid mixing type nozzle device 100a and the relative relationship between each structure are all similar to the gas-liquid mixing type nozzle device 100 shown in Fig. 1A and Fig. 1B The changes of each structure and the relative relationship between each structure are not repeated here, and only the differences will be described below.

In the gas-liquid mixing nozzle device 100a, the throttling component 110 is used to replace the throttle component 106 which is substantially a column in the gas-liquid mixing nozzle device 100 . The throttle component 110 is a throttle tube, wherein the throttle tube has an end portion 110a, a first channel 110b and a second channel 110c. The first channel 110b is recessed at the end portion 110a, and the second channel 110c is recessed at the side of the throttle tube, and the first channel 110b and the second channel 110c form a channel as shown in FIG. 2A. In addition, the side of the above-mentioned throttling tube is in contact with the wall surface of the first part 402 of the liquid-accommodating recessed part 400, thus forming a cross-sectional structure as shown in FIG. A channel 110b enters the gas-liquid mixing recess 500 . More specifically, the liquid contained in the liquid-accommodating recess 400 first enters the first channel 110b through the second channel 110c, and then enters the gas-liquid mixing recess 500 through the first channel 110b, that is, the liquid is accommodated. The liquid in the concave portion 400 enters the gas-liquid mixing concave portion 500 through the flow channel formed by the first channel 110b and the second channel 110c.

In addition, a plurality of above-mentioned gas-liquid mixing nozzle devices 100 or gas-liquid mixing nozzle devices 100a are vertically arranged, and these gas-liquid mixing nozzle devices 100 or gas-liquid mixing nozzle devices 100a are connected in parallel to the same gas supply source And the same liquid supply source can effectively suppress the uneven distribution of liquid flow caused by the difference in hydrostatic pressure. The principle is explained as follows.

Consider the situation where liquid passes through a small-diameter flow channel (such as the small-diameter flow channel in which the first part 402 joins the gas-liquid mixing recess 500 as shown in Figure 1A and Figure 2A), the energy conservation before and after the liquid passes through this small-diameter flow channel , expressed mathematically as follows:

$u+\frac{P}{\mathrm{\ρ}}+\frac{{\stackrel{\‾}{V}}^2}{2\mathrm{\β}}+\mathrm{gz}+m+Q=\mathrm{Cons}\mathrm{the\; tan}t$ .............................(1)

为压力能，

为动能，gz为位能，而M为系统(即小孔径流道)作功，Q为热量输入，且Constant为常数。where U is the internal energy,

for the pressure energy,

is the kinetic energy, gz is the potential energy, and M is the work done by the system (that is, the small-diameter flow channel), Q is the heat input, and Constant is a constant.

Simplifying the above system without considering the potential energy, system work, heat input and internal energy loss caused by friction, the above formula (1) can be simplified as follows:

$\frac{P}{\mathrm{\&rho;}}+\frac{{\stackrel{\&OverBar;}{V}}^2}{2\mathrm{\&beta;}}=\mathrm{Cons}\mathrm{the\; tan}t$ or $\frac{{\mathrm{<figure-callout\; id="0"\; label="P"\; filenames="HSA00000461114000032.png,HSA00000461114000042.png"\; state="\{\{state\}\}">P</figure-callout>}}_0}{\mathrm{\&rho;}}+\frac{{{\stackrel{\&OverBar;}{V}}_0}^2}{2\mathrm{\&beta;}}=\frac{P_i}{\mathrm{\&rho;}}+\frac{{{\stackrel{\&OverBar;}{V}}_i}^2}{2\mathrm{\&beta;}}$ .............................(2)

故以上(2)式可简化如下：Let ΔP=P ₀ -P _i , and assume that the cross-sectional area of the flow channel before the fluid enters the above-mentioned small-diameter flow channel is much larger than the cross-sectional area of the small-diameter flow channel, that is, it can be assumed

Therefore, the above formula (2) can be simplified as follows:

${{\stackrel{\&OverBar;}{V}}_i}^2=\frac{2\mathrm{\&beta;}}{\mathrm{\&rho;}}\mathrm{\&Delta;P}$ ...................................(3)

其中Q为液体流量，而A为小孔径流道的截面积。因此，以上(3)式可调整如下：also,

Where Q is the liquid flow rate, and A is the cross-sectional area of the small-diameter flow channel. Therefore, the above formula (3) can be adjusted as follows:

$\frac{{{\stackrel{\&OverBar;}{Q}}_i}^2}{{{\stackrel{\&OverBar;}{A}}_i}^2}=\frac{2\mathrm{\&beta;}}{\mathrm{\&rho;}}\mathrm{\&Delta;P}$ ................................(4)

也越小。According to the above formula (4), it can be seen that when the cross-sectional area of the small-diameter flow channel is smaller, the system needs a larger pressure difference ΔP to maintain the same flow rate. In addition, when the cross-sectional area of the small-diameter flow channel is smaller, the flow rate change caused by the change of the pressure difference ΔP

Also smaller.

According to the principle described above, when a plurality of gas-liquid mixing nozzle devices 100 or gas-liquid mixing nozzle devices 100a are vertically arranged as described above, the throttling assembly 106 or the throttling assembly 110 can be used to The cross-sectional area of the first portion 402 is reduced to reduce the flow variation caused by the hydrostatic pressure difference between the multiple gas-liquid mixing nozzle devices 100 or the gas-liquid mixing nozzle devices 100a. Therefore, the variation of the overall flow distribution of the system composed of multiple gas-liquid mixing nozzle devices 100 or gas-liquid mixing nozzle devices 100a can be controlled within an acceptable range.

The following is a comparison between actual embodiments and comparative examples, so as to more specifically illustrate the effects produced by the application of the above principles.

comparative example

Firstly, the twelve gas-liquid mixing nozzle devices are arranged vertically and numbered, and the height configuration of the twelve gas-liquid mixing nozzle devices and the corresponding hydrostatic pressure difference are shown in Table 1 below, where the height and hydrostatic pressure The difference is based on the No. 12 gas-liquid mixing nozzle device.

Table I

In this comparative example, the structure of the gas-liquid mixing nozzle is similar to that shown in Figures 1A and 1B, the difference being that it does not include the throttling assembly 106, and the first part 402 shown in Figure 1A is connected to the gas-liquid The diameter of the small-diameter channel joined by the mixing depression 500 is 6.6 mm.

Connect the twelve gas-liquid mixing nozzles in parallel to the same gas supply source and the same liquid supply source, and then apply six different total liquid flows to the twelve gas-liquid mixing nozzles, wherein the total liquid flow is 25 liters/minute ( l/min), 37l/min, 50l/min, 75l/min, 100l/min and 125l/min. When the total flow of different liquids is applied, the water flow corresponding to each gas-liquid mixing nozzle device is recorded in Figure 3.

It can be seen from FIG. 3 that the water flow rate of the gas-liquid mixing nozzle device is lower as it is closer to the upper side. In addition, when the total flow rate is lower, the relative difference between the plurality of gas-liquid mixing nozzle devices is also larger. Furthermore, when the total flow rate drops to 25 l/min and 37 l/min, four and two gas-liquid mixing nozzle devices respectively cannot eject liquid.

Embodiment one

In Example 1, the relevant experimental conditions adopted are the same as those of the above-mentioned Comparative Example, the difference is that the gas-liquid mixing nozzle device in Example 1 adopts the structure shown in Figure 1A and Figure 1B, that is, it includes Throttle assembly 106 . In addition, the throttling component 106 is a columnar body with a diameter of 5 mm.

The experimental results are recorded in Figure 4. According to FIG. 4 , it can be seen that the water flow distribution uniformity of the multiple gas-liquid mixing nozzle devices is significantly better than that of the above-mentioned comparative example without the throttling assembly 106 . However, when the total flow rate dropped to 25 l/min, there were still two gas-liquid mixing nozzle devices that could not eject liquid.

Embodiment two

In Example 2, the relevant experimental conditions adopted are the same as those of the above-mentioned Comparative Example, the difference is that the gas-liquid mixing nozzle device in Example 2 adopts the structure shown in Figure 2A and Figure 2B, that is, it includes The throttling assembly 110, the throttling assembly 110 is a throttling tube, and the diameter of the first channel 110b of the throttling tube is 4mm.

The experimental results are recorded in FIG. 5 . According to FIG. 4 and FIG. 5 , it can be known that the water flow distribution uniformity of the plurality of gas-liquid mixing nozzle devices is similar to the water flow distribution uniformity of the first embodiment above.

Embodiment three

In the third embodiment, the relevant experimental conditions adopted are the same as those of the above-mentioned comparative examples, and the difference is that the gas-liquid mixing nozzle device in the third embodiment adopts the structure shown in Fig. 2A and Fig. 2B, that is to say, it includes The throttling assembly 110, the throttling assembly 110 is a throttling tube, and the diameter of the first channel 110b of the throttling tube is 3mm.

The experimental results are recorded in FIG. 6 . According to Fig. 4, Fig. 5 and Fig. 6, compared with the water flow distribution uniformity of multiple gas-liquid mixing nozzle devices shown in Fig. 4 and Fig. 5, the water flow distribution uniformity of Embodiment 3 is further improved. promote. Even when the total flow rate drops to 25l/min, the gas-liquid mixing nozzle devices No. 1 and 2 above can still spray liquid.

Although the present invention has been disclosed above in terms of implementation, it is not intended to limit the present invention. Any skilled person can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection should be based on the scope defined by the appended claims.

Claims (7)

1. A gas-liquid mixing nozzle device, characterized in that it comprises: The base body includes a first side, a second side and a third side, wherein the base also includes: a gas channel, recessed on the first side, for transporting a gas; a liquid channel, recessed on the first side, for transmitting a liquid; a liquid-accommodating recessed part recessed on the second side surface, wherein the liquid-accommodating recessed part has a first part and a second part communicating with each other, the second part is adjacent to the second side face, the liquid channel penetrating from the first side to the liquid containing recess, and the liquid containing recess is used to contain the liquid; and A gas-liquid mixing recess, recessed on the third side, wherein the gas passage and the liquid-holding recess respectively penetrate through the first side and the second side to the gas-liquid mixing recess, and the liquid-holding recess The first part communicates with the gas-liquid mixing depression; a closure component, disposed at the opening in the second portion of the liquid-accommodating recess; a throttling component coupled to the closure component, wherein the throttling component protrudes into the first portion of the liquid-accommodating recess to reduce the cross-sectional area of the first portion; and A nozzle is connected to the opening of the gas-liquid mixing recess, so that the liquid and the gas in the gas-liquid mixing recess can enter the inner space of the nozzle. 2. The gas-liquid mixing nozzle device according to claim 1, characterized in that, the throttling component is a columnar body, and the columnar body forms a flow channel with the wall surface of the first part of the liquid-accommodating recessed part, and The liquid accommodated in the liquid-accommodating recess enters the gas-liquid mixing recess through the flow channel. 3. The gas-liquid mixing nozzle device according to claim 1, wherein the throttling assembly is a throttling tube, and the throttling tube has an end, a first channel and a second channel, the first A channel is recessed at the end, the second channel is recessed at the side of the throttling tube, the first channel and the second channel form a flow channel, and the side of the throttling tube and the recessed part for containing the liquid The wall contact of the first part of; The liquid accommodated in the liquid-accommodating concave portion enters the gas-liquid mixing concave portion through the flow channel. 4. The gas-liquid mixing nozzle device according to claim 1, wherein the throttling assembly is joined in a manner selected from a group consisting of a welding method, a screw connection method and a clamping method on the closure assembly. 5. The gas-liquid mixing nozzle device according to claim 1, wherein the closing component is arranged in the accommodating unit in a manner selected from a group consisting of a screw connection method and a clamping method. An opening in the second portion of the liquid well. 6 . The gas-liquid mixing nozzle device according to claim 1 , wherein the first part of the recessed part for accommodating liquid further comprises an inclined surface, and the inclined surface makes the aperture of the first part move along the direction away from the first part. The direction of the two parts tapers. 7. The gas-liquid mixing nozzle device according to claim 1, wherein the gas passage further has a third part and a fourth part, the fourth part is adjacent to the first side, and the gas passage The third part communicates with the gas-liquid mixing recess; Wherein the third portion further includes an inclined surface, and the inclined surface makes the aperture of the third portion tapered along a direction away from the fourth portion.

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