CN108411988B

CN108411988B - Manufacturing method of bubble type water saving device

Info

Publication number: CN108411988B
Application number: CN201810204490.5A
Authority: CN
Inventors: 罗霄
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-03-13
Filing date: 2018-03-13
Publication date: 2020-08-07
Anticipated expiration: 2038-03-13
Also published as: CN108411988A

Abstract

The invention discloses a manufacturing method of a bubble type water saving device, which comprises the following steps: step S1: connecting the plastic hose to a household water faucet to enable the plastic hose to be vertically downward; step S2: inserting the syringe needle into the plastic hose from the side surface of the plastic hose in an inclined downward direction, controlling the distance from the needle point of the syringe needle to the end port of the plastic hose to be 5-7 times of the inner diameter of the plastic hose, and keeping the cutting edge at the needle point to be inclined downward; step S3: clamping a first clamp at a position, corresponding to the needle point, on the plastic hose to form a narrow pipe pipeline, accelerating water flow, and enabling the pressure of water applied to the pipe wall of the narrow pipe pipeline to be less than 0.1 MPa; step S4: and a second clamp is clamped at the tail end of the plastic hose, so that a convergent conic section pipeline is formed at the tail end of the plastic hose, and atomized water is formed in an air-water mixing cavity between the narrow pipe pipeline and the convergent conic section pipeline by air and water. The invention has simple and convenient manufacture and low cost, and can be used for various cleaning scenes.

Description

Manufacturing method of bubble type water saving device

Technical Field

The invention relates to the technical field of water-saving devices, in particular to a manufacturing method of a bubble type water-saving device.

Background

At present, fresh water resources in many places are seriously lacked, and water supply is insufficient in many cities, so that people are required to save water.

Although most of the prior civil kitchen faucets, lavatory wash basins and bathroom faucets are integrated with bubblers at water outlets, a large number of common faucets (or washing machine faucets) without water-saving designs are still kept in vast rural areas, urban and town tenants, urban and rural low-income groups and public places.

The design of the special connecting piece (or the bubble water-saving faucet) of the bubble water-saving mode which can be additionally arranged on the common faucet is a set of complex design without exception, products are manufactured by independent die sinking of a factory, the process is complex, and the product has high cost and high selling price, and is not beneficial to popularization in low-income groups.

The atomizing water tap and the gravity air supply device (No. CN104790470B) disclosed in the Chinese patent can save about 90% of water consumption on the premise of ensuring the same cleaning degree. When people need to stand on the pedal during hand washing, the pedal is sunk to drive the piston to compress air and inject the air into water flow, and the water faucet sprays mist water drops; the up-down stroke of the pedal is limited, the maximum is 20 cm (if the person stands up, the person can only bend the waist to wash hands), and the time for the pedal to sink to the bottom after the person stands up is 8-10 seconds at most. What can an 8-10 second air atomized water stream dry? The device can only wash hands, so the device is limited in washing time, can only be used in washing scenes, and cannot be used in scenes with long washing time, such as vegetable washing, dish washing, bath, car washing and the like.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a simple, convenient and low-cost manufacturing method of a bubble type water-saving device for saving water.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a manufacturing method of a bubble type water saving device comprises the following steps:

step S1: connecting a plastic hose to a household water faucet, and enabling the plastic hose to vertically face downwards;

step S2: inserting a syringe needle into the plastic hose from the side surface of the plastic hose in an inclined downward direction, controlling the distance from the needle point of the syringe needle to the position of the tail end port of the plastic hose to be 5-7 times of the inner diameter of the plastic hose, and keeping the slope of a cutting edge at the needle point of the syringe needle downward in the pipeline of the plastic hose;

step S3: clamping a first clamp at a position, corresponding to the needle point, on the plastic hose, wherein a narrow pipe is formed at the clamped position of the first clamp, water flow in the narrow pipe is accelerated, so that the pressure applied to the pipe wall of the narrow pipe by water is less than 0.1MPa, and air is naturally sucked at the narrow pipe through a needle hole of the injector;

step S4: the tail end of the plastic hose is clamped with a second clamp, so that a convergent conic section pipeline is formed at the tail end of the plastic hose, an air-water mixing cavity is formed between the narrow pipe pipeline and the convergent conic section pipeline, air and water are fully mixed in the air-water mixing cavity, and atomized water is formed.

The invention has the beneficial effects that: the method adopts plastic hoses, syringe needles and clips which are easily obtained in daily life as materials, and has the advantages of simple and convenient manufacturing method and low cost which is almost close to zero. The invention clamps the plastic hose through the first clamp, so that the plastic hose forms the narrow pipe pipeline at the clamping position of the first clamp, the water flow flowing through the narrow pipe pipeline is accelerated, and the pressure applied to the pipe wall of the narrow pipe pipeline by water is less than 0.1MPa, therefore, air is naturally sucked into the narrow pipe pipeline through the pipeline of the syringe needle head under the action of the pressure difference between the inside and the outside of the narrow pipe pipeline. Because the plastic hose is vertical downwards, the cutting edge slope of the needle point of the syringe needle is downwards, so that the air flow direction is consistent with the water flow direction, and thus, the water flow can overcome the gas buoyancy, prevent the upward accumulation of bubbles and be favorable for the stable mixing and atomization of air and water. The distance from the needle point of the syringe needle to the position of the end port of the plastic hose is controlled to be 5-7 times of the inner diameter of the plastic hose, so that the water and air are mixed and atomized effectively. Because the second clip is arranged at the tail end of the plastic hose in a clamping mode, the tail end of the plastic hose forms a convergent conic section pipeline, an air-water mixing cavity is formed between the narrow pipe pipeline and the convergent conic section pipeline, air and water are fully mixed in the air-water mixing cavity, and atomized water is formed. Through the convergent conic pipeline, the accelerated jet of water flow can be realized, the fog torch is increased, and the atomization is facilitated. Experiments prove that the water-saving efficiency of the bubble type water-saving device obtained by the method of the invention reaches more than 50 percent. Because the air can be injected into the water flow stably for a long time, the washing time can be controlled as required, various articles can be continuously washed, the washing machine is suitable for various washing scenes, such as dish washing, vegetable washing, bath, car washing and the like, and a large amount of precious water resources can be saved.

Preferably, in the step S2, the distance from the needle tip of the syringe needle to the position of the end port of the plastic hose is controlled to be 6.3 times the inner diameter of the plastic hose. This results in better mixing of water and air.

Preferably, in the step S1, the step of connecting the plastic hose to the household faucet includes: the plastic hose is directly sleeved on the household water faucet and is screwed by an iron wire or a steel wire; or the plastic hose is fixed on the household water faucet through a water pipe connector. The connection mode is simple to operate and water seepage-proof.

Preferably, the syringe needle is connected with a syringe, and the syringe is fixed on the plastic hose by using an adhesive tape. Therefore, the air inlet channel can be prolonged, and the air inlet efficiency is increased; and when the water-saving mode is not required to be used, the syringe piston can be inserted into the cylinder.

Preferably, the aperture of the syringe needle is less than or equal to 2 mm. Therefore, the condition that the bubbles are unstable can be overcome, the aggregation is prevented, and the uniform mixing and atomization of the bubbles and the water are facilitated.

Preferably, in the step S2, the number of the syringe needles is plural. Therefore, the sectional area for injecting air can be increased, and better water and air mixing and atomizing effects can be obtained.

Drawings

FIG. 1 is a schematic diagram of a bubble type water saving device obtained by a method for manufacturing the bubble type water saving device according to an embodiment of the present invention;

fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Detailed Description

The method for manufacturing the bubble type water saving device in the specific embodiment of the invention is to modify the existing faucet by using simple and easily available materials to form the bubble type water saving faucet, which can save water by more than 50 percent, can not be blocked by solid small particles of impurities in tap water, and has almost negligible cost.

The method for manufacturing the bubble type water saving device comprises the following steps:

step S1: the front end 11 of the plastic hose 1 is connected to a household water faucet, specifically, the plastic hose 1 is directly sleeved on the household water faucet and is screwed down by an iron wire, and the plastic hose is vertically downward. Of course, in other embodiments, the plastic hose 1 may be fixed to the household faucet through a water pipe connector, and the plastic hose 1 may be vertically downward. The connection mode is simple in operation and water seepage-proof.

Step S2: a syringe needle 3 is inserted into the plastic hose 1 from the side of the plastic hose 1 in a downward direction, and the cutting edge slope at the needle tip 31 of the syringe needle 3 is kept downward in the tube of the plastic hose 1. To obtain a good water and air mixing effect, it is required to control the distance from the needle tip 31 of the syringe needle 3 to the end port of the plastic hose 1 to be about 5 to 7 times the inner diameter of the plastic hose 1; in this embodiment, it is preferable that the distance from the needle tip 31 of the control syringe needle 3 to the end port position of the plastic hose 1 is 6.3 times the inner diameter of the plastic hose 1. The aperture of the syringe needle is required to be less than or equal to 2mm, so that the instability of the bubble state can be overcome, the bubble aggregation is prevented, and the uniform mixing and atomization of the bubbles and water are facilitated; in this embodiment, a 16 gauge syringe needle with an inner diameter of 1.6mm is preferred. The syringe needle 3 is also connected with a syringe 2, and the syringe 2 is fixed on the plastic hose 1 by an adhesive tape 6; therefore, the air inlet channel can be prolonged, and the air inlet efficiency is increased; and when the water-saving mode is not required to be used, the syringe piston may be inserted into the cylinder 6.

Step S3: the first clamp 4 is clamped on the plastic hose 1 at a position corresponding to the needle point 31 of the syringe needle 3, and the narrow pipe 13 is formed at the clamped position of the first clamp 4, so that the water flow in the narrow pipe 13 is accelerated, the pressure applied to the pipe wall of the narrow pipe 13 by the water is less than 0.1MPa, and thus, the air is naturally sucked in the narrow pipe 13 through the needle hole of the syringe needle 3. It should be noted that the first clamp 4 is preferably a metal fishtail bill clamp with strong clamping force, and in this embodiment, a clamp with a width of 32mm is preferably used to clamp the bill in the middle, so that the needle point 31 is located in the middle of the clamp in the width direction.

Step S4: and clamping a second clamp 5 at the position of the tail end 12 of the plastic hose 1, so that a convergent cone section pipeline 14 is formed at the position of the tail end 12 of the plastic hose 1, and the air and the water are mixed and atomized between the narrow pipe pipeline 13 and the convergent cone section pipeline 14 to form atomized water. It should be noted that the second clamp 5 is preferably a bamboo clothes airing clamp with weak clamping force.

The specific implementation mode of the invention has the advantages that: the method adopts the materials of the plastic hose 1, the syringe needle 3, the first clamp 4 and the second clamp 5 which are easily obtained in daily life, has simple and convenient manufacturing method and low cost and is almost close to zero. The first clamp 4 with strong clamping force clamps the plastic hose 1, so that the plastic hose 1 forms a narrow pipe pipeline 13 at the clamping position of the first clamp 4, the water flow flowing through the narrow pipe pipeline 13 is accelerated, and the pressure applied to the pipe wall of the narrow pipe pipeline 13 by water is less than 0.1MPa, so that air is naturally sucked into the narrow pipe pipeline 13 through the pipe of the syringe needle 3 under the action of the pressure difference between the inside and the outside of the narrow pipe pipeline 13. Because the plastic hose 1 is vertical downwards, the cutting edge slope of the needle point 31 of the syringe needle 3 is downwards, so that the air flow direction is consistent with the water flow direction, and thus, the water flow can overcome the gas buoyancy, prevent the upward accumulation of bubbles and be favorable for the stable mixing and atomization of air and water. The distance from the needle point 31 of the syringe needle 3 to the end 12 of the plastic hose 1 is controlled to be 6.3 times of the inner diameter of the plastic hose 1, so that the water and air mixed atomization effect is very good. As the second clamp 5 with weak clamping force is clamped at the tail end 12 of the plastic hose 1, the tail end of the plastic hose 1 forms a convergent conic section pipeline 14 to a certain degree, an air-water mixing cavity is formed between the narrow pipe pipeline 13 and the convergent conic section pipeline 14, air and water are fully mixed in the air-water mixing cavity, and atomized water is formed. Through the convergent conic section pipeline 14, the accelerated jet of water flow can be realized, the fog torch is increased, and the atomization is facilitated. Experiments prove that the water-saving efficiency of the bubble type water-saving device (as shown in fig. 1 and 2) obtained by the embodiment reaches more than 50%. Because the air can be injected into the water flow stably for a long time, the washing time can be controlled as required, various articles can be continuously washed, the washing machine is suitable for various washing scenes, such as dish washing, vegetable washing, bath, car washing and the like, and a large amount of precious water resources can be saved.

The above embodiments may be otherwise modified: if step S2 is performed, the number of syringe needles is changed from 1 to a plurality, such as 2, 3, or 4. Therefore, the sectional area for injecting air can be increased, and better water and air mixing and atomizing effects can be obtained.

The above embodiments may be further modified in other respects: as before step S2, the rubber head of a syringe plunger shaft is cut away, leaving only a plastic shaft portion having a "+" shaped cross-section. The plastic push rod is twisted forcefully to generate plastic deformation, and then inserted into the hose and placed at the upper end of the needle insertion part to become a spiral vortex guide vane, so that the incoming flow of the water flow is changed into a rotary vortex from a linear flow by a simple method.

The above embodiments may be further modified in other respects: replacing the first clamp by winding and gradually screwing an iron wire; instead of the second clamp, a wire is wound and gradually tightened.

Several experiments are described in detail below to demonstrate the positive effects of the present invention.

1. First round of experiment

Principle verification experiments are carried out for 4 times, and the experimental sites are respectively in the first floor, the third floor and the sixth floor of a common urban residential building and the 13-floor residential building with secondary water supply. A plastic hose with the inner diameter of 12mm is used, a 10ml syringe is used, a No. 7 needle head (the outer diameter of the needle head is 0.7mm, the inner diameter of the needle head is 0.5mm) is matched, and vices, common bamboo and wood clothes airing clamps, metal fishtail clamps with different specifications, metal bill folders and the like are tried on the clamps respectively.

The experimental process comprises the following steps:

(1) a hose is connected to a water outlet of a common faucet to ensure that the joint does not seep water;

(2) obliquely inserting an injector at a proper position of the hose along the water flow direction, and pulling out a piston on the plastic needle cylinder;

(3) turning on a water faucet and regulating water flow;

(4) the experiment was repeated on different floors, using different clamps.

The observation shows that:

(1) when the hose is horizontal to the ground, the water tap is opened, water overflows from the needle of the syringe, but after the hose at the needle point position is clamped with the clamp, the needle does not overflow, but starts to suck air inwards, the needle cylinder generates a squeak air suction sound, the color of water flow at the outlet of the hose gradually turns white from transparent, and a large amount of bubbles are mixed in the water flow.

(2) When the hose is vertical to the ground, the water faucet is opened, the needle head does not overflow, the needle head directly starts to suck air inwards along with the opening of the water faucet, and a slight 'squeak' air suction sound is generated; the opening of the water faucet is kept unchanged, after the clamp is clamped outside the hose at the needle point position, the suction tone of the needle cylinder is obviously increased, the volume is obviously increased, the water flow at the outlet is obviously whitened, and more mixed bubbles are generated; when the clamp is tried to be continuously pinched by the vice, the suction tone of the syringe is higher, the volume is higher, the water flow at the outlet is whiter, and more air bubbles are mixed.

(3) The water outlet pressure of the first, third and sixth buildings for primary water supply and the 13 th building for the high-rise residence for secondary water supply are slightly different, and the 13 th building is larger than the first building and larger than the third building and larger than the sixth building. However, in the experiment of each floor, the phenomenon of needle suction occurs, and only in the six floors with the relatively minimum water pressure, the water faucet needs to be opened to a larger extent.

(4) When the water tap is opened and the second needle is inserted from the other side of the clamped hose, the suction sound tone at the first needle is not reduced and the volume is not reduced, and the suction sound close to the first needle is also emitted at the second needle, so that the air inflow is obviously increased. The number of insertion needles was increased to 4 and the intake air amount was found to increase.

(5) Different clamps are used for experiments, the larger the clamping force is, the more stable the formed narrow pipe is, 2 large-size metal fishtail bill folders are used for oppositely clamping, and the effect is better.

(6) The experiment was repeated on each floor and, with 2 needles inserted, the total water yield was found to be reduced by 50% from before after the introduction of air by comparison with 10 seconds of water.

Through a first round of experiments, a preliminary design approach has proven successful and feasible.

2. Second round of experiment

Experiment A experiment for influence of needle tip cutting edge slope orientation on air intake efficiency

The hose is vertical to the ground, and the needle head is inserted into the hose along the water flow direction and obliquely below the hose, so that the cutting edge of the needle point is upward in a slope. When the water tap is opened, the needle head does not overflow outwards, but no air is sucked; the needle was slowly rotated so that the cutting edge slope of the needle point was gradually downward, and it was found that air was initially sucked when the cutting edge slope was toward the side, and the air suction amount was increased when the cutting edge slope was completely downward.

And (4) experimental conclusion: care should be taken to keep the cutting edge of the needle tip sloped downward during needle insertion to increase air intake efficiency.

Experiment B experiment of influence of air inlet passage length on air inlet efficiency

The experimental conditions were the same as those of experiment A. After the needle head is inserted, the plastic needle cylinder is pulled out, only the needle head part is reserved, the air suction amount is observed, and the air suction amount is reduced when only the needle head is inserted and the needle cylinder is not used; after the plastic syringe is installed, the air suction amount is increased.

And (4) experimental conclusion: when the needle head is inserted, the plastic syringe is reserved to prolong the air inlet channel and increase the air inlet efficiency.

Experiment C experiment for influence of mixing cavity length-diameter ratio on outlet water flow atomization effect

The experimental conditions were the same as those of experiment B. An air-water mixing cavity is arranged below the hose clamping section, and a hose with the length of 12 centimeters (length-diameter ratio of 10) is reserved below the clamping section to start an experiment. And observing the form change of the gas-liquid two-phase flow in the mixing cavity, and finding that the water flow is obviously white in a section 6-8.5 cm below the clamping section, a large amount of micro bubbles are mixed, and the white color is weakened in the section which goes downwards. In a continuing experiment, the hose below the pinched section was gradually cut short and it was found that at the remaining 7.6 cm (aspect ratio 6.3) a relatively optimal two-phase gas-liquid flow was obtained at the outlet.

And (4) experimental conclusion: the length to diameter ratio of the gas-water mixing chamber is optimized to 6.3 (note: the start point of the gas-water mixing chamber is calculated from the end point of the clamping section).

Experiment D experiment of adding convergent conic section at end of mixing cavity

The experimental conditions were the same as those of experiment C. Clamping the tail end of the hose by using a bamboo-wood clothes airing clamp, so that a slightly convergent conical section is formed at the tail end of the hose, the air suction efficiency is obviously enhanced, the gas-liquid two-phase flow in the gas-water mixing cavity is obviously whitened, the outlet water flow has a conical angle of less than 30 degrees, and the contact area of the water flow and the object to be washed is increased; the water flow impact force is enhanced, and at the moment, the opening degree of the water faucet is properly reduced, so that the water flow impact force equivalent to that when the experimental device is not installed and the water faucet is fully opened can be obtained.

And (4) experimental conclusion: the convergent cone section is added at the tail end of the hose, so that a proper outlet water flow cone angle can be formed, the contact area of water flow and an object to be washed is effectively increased, and the washing efficiency is improved; the convergent cone section is added at the tail end of the hose, so that the impact force of water flow can be enhanced, and the tap is properly turned down, so that the use effect of comfortable use and no splashing can be achieved, and the water-saving effect can be achieved.

Experiment E detergency and Water saving efficiency experiment

Soaking soy sauce and tomato juice in white cotton cloth to obtain polluted cloth, cutting the polluted cloth from iron sheet tea canister, tightening the polluted cloth on the test bench, placing the polluted cloth 4 cm below the outlet of the hose, and performing washing experiment for 10 seconds in 2 modes of air suction and air non-suction. Experiments show that when air is sucked, the cleanliness of the polluted cloth washed for 10 seconds is superior to that of the normal water flow without sucking air.

And (4) experimental conclusion: the cleaning ability of the gas-liquid two-phase flow is superior to that of the common water flow. Therefore, when the same contaminant is washed and the water flow of the sucked air is used, the time required is shorter and the water saving efficiency is better.

Claims

1. The manufacturing method of the bubble type water saving device is characterized by comprising the following steps:

step S2: inserting a syringe needle into the plastic hose from the side surface of the plastic hose to the obliquely downward direction, controlling the distance from the needle point of the syringe needle to the position of the tail end port of the plastic hose to be 5-7 times of the inner diameter of the plastic hose, and keeping the slope of a cutting edge at the needle point of the syringe needle downward in the pipeline of the plastic hose;

step S4: clamping a second clamp at the tail end of the plastic hose to enable the tail end of the plastic hose to form a convergent cone section pipeline, and enabling air and water to be atomized between the narrow pipe pipeline and the convergent cone section pipeline to form atomized water;

in the step S2, controlling the distance from the needle tip of the syringe needle to the position of the end port of the plastic hose to be 6.3 times of the inner diameter of the plastic hose;

the aperture of the syringe needle is less than or equal to 2 mm.

2. The manufacturing method of the bubble type water saving device according to claim 1, characterized in that: in step S1, the specific steps of connecting the plastic hose to the household faucet are as follows: the plastic hose is directly sleeved on the household water faucet and is screwed by an iron wire or a steel wire; or the plastic hose is fixed on the household water faucet through a water pipe connector.

3. The method for manufacturing a bubble type water saving device according to claim 1, wherein the syringe needle is connected with a syringe, and the syringe is fixed on the plastic hose by an adhesive tape.

4. The method for manufacturing a bubble type water saving device according to claim 1, wherein in the step S2, the number of the syringe needles is plural.