CN108532704B - Multi-point jet vortex water flow cleaning device, vortex foaming type spray head and application - Google Patents
Multi-point jet vortex water flow cleaning device, vortex foaming type spray head and application Download PDFInfo
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- CN108532704B CN108532704B CN201810517192.1A CN201810517192A CN108532704B CN 108532704 B CN108532704 B CN 108532704B CN 201810517192 A CN201810517192 A CN 201810517192A CN 108532704 B CN108532704 B CN 108532704B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 196
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 190
- 239000007921 spray Substances 0.000 title claims abstract description 86
- 238000005187 foaming Methods 0.000 title claims abstract description 52
- 238000013178 mathematical model Methods 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims description 23
- 230000003749 cleanliness Effects 0.000 claims description 17
- 210000000436 anus Anatomy 0.000 claims description 15
- 238000002474 experimental method Methods 0.000 claims description 10
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- 239000003344 environmental pollutant Substances 0.000 claims description 3
- 231100000719 pollutant Toxicity 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 abstract description 11
- 230000000474 nursing effect Effects 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 22
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- 210000005070 sphincter Anatomy 0.000 description 5
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- 238000009991 scouring Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
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- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 210000003741 urothelium Anatomy 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 206010012735 Diarrhoea Diseases 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
- E03D9/08—Devices in the bowl producing upwardly-directed sprays; Modifications of the bowl for use with such devices ; Bidets; Combinations of bowls with urinals or bidets; Hot-air or other devices mounted in or on the bowl, urinal or bidet for cleaning or disinfecting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
Abstract
The invention provides a multi-point jet vortex water flow cleaning device, which comprises a plurality of vortex foaming spray heads, wherein the vortex foaming spray heads are positioned in the circumferential and nearby areas of a human body in a working state; each of the swirling foaming spray heads comprises: the water inlet, the convergent type spray cavity, the porous filter screen, the water spray runner and the water outlet are sequentially arranged, the water passing area of the convergent type spray cavity is gradually reduced from the water inlet direction to the water outlet direction, and the water spray runner is of an inclined streamline structure. Simultaneously, a structure of the rotational flow foaming spray head and application of the multi-point injection vortex water flow cleaning device are provided. The invention takes the physiological structural characteristics of the perianal and nearby areas of the human body into consideration, and based on a gas-liquid two-phase non-submerged free jet water flow mathematical model, creatively adopts a novel multi-point jet vortex water flow flushing technology to realize multi-angle and omnibearing rotational flow cleaning and nursing. This will greatly increase the cleaning efficiency and effectiveness and enable a new mode of personal cleaning care that is efficient, quick and more comfortable.
Description
Technical Field
The invention relates to the technical field of intelligent cleaning, in particular to a multi-point jet vortex water flow cleaning device, a vortex foaming spray head and application.
Background
Five elements of life: can be used for sleeping after eating and drinking. "sprinkling" is the normal physiological activity of the human body, and is mainly accomplished through the anus, an important excretory passage of the human body. The perianal and nearby area is typically rubbed multiple times with toilet paper by healthy persons to remove excreted residual material.
However, the perianal and nearby areas of the human body have special physiological characteristics, and in the wrinkled parts with rich perianal areas, a small amount of dirt can not be thoroughly cleaned, so that the comfort and personal hygiene of people are affected. When people suffer from some perianal diseases or diarrhea, the traditional paper wiping method is not easy to wipe cleanly, and can cause extremely strong pain in the perianal. On the other hand, the aging degree of the society is increasing. More and more elderly people face difficulty in life self-care. When their hands and feet are inconvenient to move, personal hygiene care with toilet paper becomes increasingly difficult, greatly reducing the quality of life of the elderly.
Therefore, there is a strong need for an intelligent personal hygiene cleaning and care technique, whether it is an average healthy population, an elderly person, or a special handicapped person and a sick patient. Currently, personal washing apparatuses typified by intelligent toilets have gradually become sanitary wares for some households. The spray rod is provided with a telescopic spray head, and the personal hygiene cleaning is completed by adjusting the reciprocating extension of the spray rod.
However, the above cleaning method still has the following disadvantages:
1) It adopts single-point jet cleaning, and the nozzle quantity is too little, leads to the cleaning cycle longer.
2) In order to improve the cleaning speed as much as possible, under the constraint of a single nozzle, higher injection pressure is often adopted, so that a sensitive area around the anus is impacted by larger water flow, and discomfort and even pain are brought.
3) Because the single nozzle can only realize unidirectional injection from back to front, the annular multi-fold area around the anus of the human body cannot be cleaned at the same time. The cleaning effect is not ideal.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a multi-point jet vortex water flow cleaning device, a rotational flow foaming spray head and application, and adopts a multi-point jet vortex water flow flushing technology based on a gas-liquid two-phase non-submerged free jet water flow mathematical model to realize daily cleaning and nursing of the perianal and nearby areas of a human body, thereby greatly improving the sanitary and health requirements of special parts of the human body.
The invention is realized by the following technical scheme.
According to a first aspect of the present invention, there is provided a multi-point jet vortex water flow cleaning device, comprising a plurality of swirl foaming spray heads, wherein in an operating state, the plurality of swirl foaming spray heads are located in the perianal and nearby regions of a human body; wherein:
each of the swirling foaming spray heads comprises: the water inlet, the convergent type spray cavity, the porous filter screen, the water spray runner and the water outlet are sequentially arranged, the water passing area of the convergent type spray cavity is gradually reduced from the water inlet to the water outlet, and the water spray runner is of an inclined streamline structure; in the working state, clean water passes through the water inlet, water pressure is increased at the convergent spray cavity, water flow foaming is formed at the porous filter screen, vortex power is generated at the water spray runner, and tangential vortex water flow is finally formed through the water outlet.
Preferably, the number of the swirl foaming type spray heads and the position of each swirl foaming type spray head are set through the determined boundary parameters of the installation position.
Preferably, the mounting position boundary parameter is determined by:
simulating perianal residues of human bodies with different pollution degrees, and defining a cleaning cleanliness grading standard;
according to the cleaning cleanliness grading standard, the boundary parameters of the cleaning installation position of the anus Zhou Zuiyou are determined through computer simulation or actual test experiments.
Preferably, the determining method of the boundary parameter of the installation position specifically includes the following steps:
the physiological data of the perianal region of the human body and the data of the cleaning comfort range are researched and finished; the physiological data of the perianal region of the human body are used for determining an action region of vortex water flow, and the data of the cleaning comfort range are used for defining acting force and speed of final contact of the vortex water flow;
constructing a relation between cleaning efficiency and cleaning rate according to physiological data of the perianal region of the human body and cleaning comfort range data; wherein, the cleaning efficiency is the cleaning time of accomplishing all regions, namely (cleaning water volume×cleaning time)/(preset water volume×preset time), the cleaning rate is the clean degree of accomplishing the cleaning, namely cleaning area/pollutant area, the cleaning efficiency and cleaning rate relation is: simulating human perianal residues with different pollution degrees, defining a cleaning cleanliness grading standard, and determining the cleaning contact speed, the contact pressure and the contact angle of the anus Zhou Zuiyou according to the cleaning cleanliness grading standard;
according to the relation between the cleaning efficiency and the cleaning rate, constructing structural parameters of the cyclone foaming spray head and a mathematical model of the jet water flow; wherein, whirl foaming formula shower nozzle structural parameter includes: the diameter of the nozzle, the inclination angle of the nozzle and the relative height from the nozzle to the perianal area of the human body;
judging whether the constructed structural parameters of the cyclone foaming spray head and the mathematical model of the water jet flow accord with the relation between the cleaning efficiency and the cleaning rate; if the cleaning contact speed is consistent with the cleaning contact angle, the optimal cleaning contact speed, the optimal cleaning contact pressure and the optimal cleaning contact angle are obtained, namely boundary parameters of the installation position; if not, the structural parameters of the swirl foaming nozzle and the mathematical model of the water jet flow are determined again.
Preferably, the cleaning cleanliness grading criteria include:
-fail: the cleaning efficiency is lower than 0.6, and the cleaning rate is lower than 60%;
-pass: the cleaning efficiency is more than 0.6, and the cleaning rate is more than 60;
good: the cleaning efficiency is more than 0.8, and the cleaning rate is more than 80%;
-excellent: the cleaning efficiency is more than 0.9, and the cleaning rate is more than 95%.
Preferably, the method further comprises the following steps:
and carrying out comfort evaluation on the obtained design structure parameters, and correcting the boundary parameters of the installation positions according to the evaluation result.
According to a second aspect of the present invention, there is provided a swirl foaming nozzle comprising: the water inlet, the convergent type spray cavity, the porous filter screen, the water spray runner and the water outlet are sequentially arranged, the water passing area of the convergent type spray cavity is gradually reduced from the water inlet direction to the water outlet direction, and the water spray runner is of an inclined streamline structure.
Under the working condition, clear water passes through the water inlet, water pressure is increased at the convergent type spray cavity, water flow foaming is formed at the porous filter screen, vortex power is generated at the water spray runner, and tangential water flow is finally formed through the water outlet.
According to a third aspect of the present invention there is provided the use of a multi-point jet vortex water flow cleaning device mounted inside the upper rim of a toilet bowl.
According to a fourth aspect of the present invention, there is provided a method of designing a multipoint spray vortex water flow cleaning device, comprising the steps of:
the physiological data of the perianal region of the human body and the data of the cleaning comfort range are researched and finished; the physiological data of the perianal region of the human body are used for determining an action region of vortex water flow, and the data of the cleaning comfort range are used for defining acting force and speed of final contact of the vortex water flow;
constructing a relation between cleaning efficiency and cleaning rate according to physiological data of the perianal region of the human body and cleaning comfort range data; wherein, the cleaning efficiency is the cleaning time of accomplishing all regions, namely (cleaning water volume×cleaning time)/(preset water volume×preset time), the cleaning rate is the clean degree of accomplishing the cleaning, namely cleaning area/pollutant area, the cleaning efficiency and cleaning rate relation is: simulating human perianal residues with different pollution degrees, defining a cleaning cleanliness grading standard, and determining the cleaning contact speed, the contact pressure and the contact angle of the anus Zhou Zuiyou according to the cleaning cleanliness grading standard;
according to the relation between the cleaning efficiency and the cleaning rate, constructing structural parameters of the cyclone foaming spray head and a mathematical model of the jet water flow; wherein, whirl foaming formula shower nozzle structural parameter includes: the diameter of the nozzle, the inclination angle of the nozzle and the relative height from the nozzle to the perianal area of the human body;
judging whether the constructed structural parameters of the cyclone foaming spray head and the mathematical model of the water jet flow accord with the relation between the cleaning efficiency and the cleaning rate; if the cleaning contact speed is consistent with the cleaning contact angle, the optimal cleaning contact speed, the optimal cleaning contact pressure and the optimal cleaning contact angle are obtained, namely boundary parameters of the installation position; if not, the structural parameters of the swirl foaming nozzle and the mathematical model of the water jet flow are determined again.
-fail: the cleaning efficiency is lower than 0.6, and the cleaning rate is lower than 60%;
-pass: the cleaning efficiency is more than 0.6, and the cleaning rate is more than 60%;
good: the cleaning efficiency is more than 0.8, and the cleaning rate is more than 80%;
-excellent: the cleaning efficiency is more than 0.9, and the cleaning rate is more than 95%.
Preferably, the method further comprises the following steps:
and carrying out comfort evaluation on the obtained design structure parameters, and correcting the boundary parameters of the installation positions according to the evaluation result.
The invention provides a multi-point jet vortex water flow cleaning device, a vortex foaming spray head and application, which are novel technology for cleaning and nursing personal perianal and nearby areas. The technology takes physiological structural characteristics of perianal and nearby areas of a human body into consideration, and based on a gas-liquid two-phase non-submerged free jet water flow mathematical model, a novel multi-point jet vortex water flow flushing technology is innovatively adopted, so that multi-angle and omnibearing rotational flow cleaning and nursing are realized. This will greatly increase the cleaning efficiency and effectiveness and enable a new mode of personal cleaning care that is efficient, quick and more comfortable.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention adopts the cyclone foaming spray head, can improve the softness and comfort of the hydraulic flushing and reduce the pain of the water flushing; the structure is beneficial to increasing the local water pressure of the cavity, foaming the water flow and generating vortex power; the foaming water flow increases softness and comfort and improves the ability to break up perianal residue.
2. Adopts the tangential water flow cleaning technology, overcomes the pain caused by direct flushing to the human body, and saves the water consumption. The specific structure of the spray head is combined, and the installation parameters of the spray head are adjusted, so that the tangential cleaning force of water flow can be improved, and the optimal spray track can be obtained; not only greatly improves the flushing efficiency, but also reduces the problem of water source waste caused by direct flushing to the greatest extent.
3. The multi-point jet vortex cleaning technology is adopted, so that the problems of insufficient single-point jet coverage area and cleaning incompleteness are overcome; the number of the spray heads and the installation parameters are reasonably distributed, so that the total water consumption for single cleaning can be saved to the greatest extent, and the cleaning effect is improved.
4. The multi-point jet vortex water flow cleaning device, the vortex foaming spray head and the application thereof provided by the invention can be adopted by a plurality of families to improve the high-tech content of healthy families and sanitary wares, improve the health and comfort level of people and be suitable for medical and health institutions; in the face of the increasingly deepened aging process of the current society, the method can serve better and benefit the old, so that the method has excellent application prospect.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a design of a multi-point jet vortex water flow cleaning device;
FIG. 2 is a schematic diagram of the physiological structure of the perianal region of a human body;
FIG. 3 is a schematic illustration of a water jet cleaning action;
FIG. 4 is a schematic diagram of a swirl foam nozzle;
FIG. 5 is an exploded view of the cleaning impact force;
FIG. 6 is a flow chart of a design of a multi-point jet vortex water flow cleaning device;
in the figure: 1 is the outer wall of the large intestine, 2 is the internal sphincter, 3 is the external sphincter, 4 is the contracted state, 5 is the expanded state, 6 is the perianal fold area, 7 is the rotational flow foaming spray head, 8 is the hydraulic streamline, 7-1 is the water spraying flow passage, 7-2 is the porous filter screen, 7-3 is the convergent spray cavity, 7-4 is the water inlet, and 7-5 is the water spraying port.
Detailed Description
The following describes embodiments of the present invention in detail: the embodiment is implemented on the premise of the technical scheme of the invention, and detailed implementation modes and specific operation processes are given. It should be noted that variations and modifications can be made by those skilled in the art without departing from the spirit of the invention, which falls within the scope of the invention.
Example 1
The embodiment provides a spiral-flow foaming type spray head, which comprises a water inlet, a convergent spray cavity, a porous filter screen, a water spray flow channel and a water outlet, wherein clear water sequentially passes through the water inlet, the convergent spray cavity, the porous filter screen, the water spray flow channel and the water outlet and is sprayed to the perianal and fold areas of a human body. One end of the rotational flow foaming spray head is a water inlet, and the other end is a water outlet; a porous filter screen is arranged in the middle of a pipeline connecting the water inlet and the water outlet; a convergent spray cavity is arranged between the porous filter screen and the water inlet, and the water passing area of the convergent spray cavity is gradually reduced from the water inlet end to the water outlet end; and a water spraying flow channel is arranged between the porous filter screen and the water outlet, the water spraying flow channel can be provided with an inclined angle according to actual conditions, and the flow channel structure is smooth. The volume of the convergent spray cavity is suddenly increased from water inlet to water outlet, and then the convergent spray cavity is gradually reduced, so that the water pressure can be increased; the porous filter screen is favorable for foaming water flow and can improve scouring force; the water spraying flow passage adopts a reasonable streamline, so that vortex power can be generated by water flow, and tangential scouring force is increased.
Example 2
The embodiment provides a multiple spot sprays vortex rivers belt cleaning device, and the device is a novel technique of wasing and nursing, including in human circumference and nearby area, arranges the whirl foaming shower nozzle that a plurality of embodiment 1 provided, adopts reasonable water jet comfortable pressure and speed, adjusts whirl foaming shower nozzle mounted position parameter to realize multi-angle, all-round whirl washing and nursing.
The perianal and nearby area of the human body is a boundary parameter for cleaning and nursing which is determined by researching physiological data of the perianal and nearby area of the human body under different ages and sexes; the installation position of the swirl foaming spray head is defined as an installation position boundary parameter.
The plurality of cyclone foaming spray heads are beneficial to realizing the optimal cleaning effect under the condition of water saving; the boundary parameters of the spray head installation position relate to the residue cleaning efficiency and the cleaning rate, and the parameters can be obtained by the following method: firstly simulating perianal residues of human bodies with different pollution degrees, and defining a cleaning cleanliness grading standard; the spray head installation parameters and water inlet pressure parameters (installation position boundary parameters) for the anus Zhou Zuiyou cleaning are then determined by computer simulation or actual test experiments.
The present embodiment is described in further detail below with reference to the accompanying drawings:
the multi-point jet vortex water flow cleaning device provided by the embodiment can be realized according to the following requirements.
The method is aimed at a specific buttock structure of a human body, adopts an ergonomic principle design, determines the geometric parameters of nozzles, and the functional requirements of cleaning efficiency and cleaning rate, and determines the number and the non-uniform distribution of the multipoint cleaning nursing nozzles. As shown in fig. 1, in the design principle framework, the first step is: the method comprises the steps of obtaining perianal physiological data of a human body through investigation, obtaining perianal water flow flushing comfort data through experiments, and obtaining data of cleaning efficiency and cleaning cleanliness through the experiments; and a second step of: based on the obtained original data, mainly experiments and simulations are used for obtaining water inlet parameters, nozzle structure parameters, a plurality of parameters and layout parameters (the boundary parameters of the installation position can be obtained according to the parameters), and the third step is that: and on the basis, the optimal nursing data parameters facing the specific crowd are obtained.
It should be noted that: the method in the implementation is not limited by the execution steps, and the sequence of the steps can be adjusted according to the actual application situation.
The method specifically comprises the following steps:
1) Investigation is completed to complete physiological data of perianal region of human body and clean comfortable range
The anus has sphincter, which can realize the front-back expansion and lateral expansion of a larger range. The perianal area of the human body is the end of the digestive tract, the anatomical structure of the human body is from the tooth trace, down to the anal margin, and is about 3cm to 4cm long, the surface layer of the anal canal is columnar epithelium and transitional epithelium at the upper section, and transitional epithelium and squamous epithelium at the lower section. The anal canal is surrounded by an internal sphincter and an external sphincter, and a large amount of wrinkled skin tissues exist, the size of the normal state is about 2 cm to 3cm, and the normal state can be enlarged to 7 cm to 9cm under the special relaxation state. As shown in fig. 2.
Physiological data of the perianal and nearby areas of the human body, including the distance and the position of the anus from the spray head, are studied under the conditions of different age sections and different sexuality, and boundary parameters are provided for determining the vortex water flow action area for cleaning and nursing. Meanwhile, the range of comfortable pressure and speed of water jet cleaning in the perianal and nearby areas of the human body is studied, and the vortex water flow for cleaning and nursing is clearly contacted with the acting force F and the speed V finally.
2) Constructing the relation between the cleaning efficiency and the cleaning rate
Simulating the perianal residues of human bodies with different pollution degrees, and defining the cleaning cleanliness grading standard. The anus Zhou Zuiyou cleaning contact pressure and contact angle are determined through computer simulation or actual test experiments.
Hydraulic cleaning generally adopts a high-speed water jet with a certain pressure and a certain angle to act on a polluted surface, when the high-speed water jet impacts dirt, the kinetic energy of water is converted into pressure energy in a contact area of the water jet and the dirt, and when the pressure is greater than or equal to the compressive strength of the dirt on the surface, the dirt can be separated from the surface of the cleaned object along with the water jet. Force of continuous jet against the surface of dirt, i.e. steady impact force of jet against dirt (final contact force of vortex water flow) F:
wherein ρ is the density of water, Q is the jet flow, u is the jet flow rate,is the angle at which the jet impinges the dirt surface and leaves the skin surface.
The residual substances around the anus are adsorbed on the human body and mainly consist of Van der Waals force, electrostatic force and friction force. After being sprayed out from the nozzle, the water jet flows through the gas-liquid two-phase mixture of a certain distance, and finally acts on the surface of the residual substance at a certain pressure and a certain angle. Microscopically, it first cracks the surface of the residue. By shearing the dirt layer and water wedging, the dirt will crack and pit accordingly, and finally be peeled off completely, as shown in fig. 3.
The water pressure of the water acting on the fouling layer plays a key role in the process of peeling off the whole fouling
The cohesive force between the scale particles is smaller than the water pressure, cracks can be formed among the scale particles, and along with the continuous action of water jet, the cracks among the scale particles are continuously expanded and gradually become cracks, so that the scale is peeled off. The direction of penetration of the water in the fouling layer and the structure inside the fouling layer determine the direction of propagation of cracks in the fouling layer, and the direction of action of the water jet determines the direction in which the fouling is peeled off. Under the combined action of shearing, compression and water wedge, the peeling speed of the dirt layer is accelerated.
In the cleaning, the cleaning efficiency is defined as the cleaning time to complete the entire area. The shorter the time, the cleaning effectThe higher the rate. The cleaning rate is defined as the degree of cleanliness to complete the cleaning. When the jet of water is directed at a certain velocity and angle (θ) to the surface of the residual material, a tangential component (F n ) Affecting the cleaning efficiency, while its normal component (F τ ) The stripping energy required to strip the residual material is affected and determines the cleanliness of the wash, as shown in fig. 5. Therefore, there is an optimum nozzle cleaning speed and angle so that the cleaning efficiency and cleaning rate are optimized as a whole.
3) Determining structural parameters of swirl foaming type spray head and mathematical model of water jet flow
The swirl foaming spray head, as shown in fig. 4, comprises a water inlet, a convergent spray cavity, a porous filter screen, a water spray runner and a water outlet, and clear water sequentially passes through the water inlet, the convergent spray cavity, the porous filter screen, the water spray runner and the water outlet and is sprayed to the perianal and fold areas of a human body. The working process comprises the following steps: clear water enters from the water inlet, the volume is suddenly increased, then the volume is gradually reduced, the water flow foaming is completed through the filter screen, the water flow finally generates vortex power, and then the perianal residues are washed by larger tangential scouring force.
When in spray cleaning, the water jet works in a certain closed space, and belongs to a gas-liquid two-phase non-submerged free jet model. The water jet micro-primitive mass is subjected to air resistance and gravity (without considering buoyancy and coriolis force), and an empirical air resistance formula that the air resistance is proportional to the square of the speed is adopted, namely:
f＝-k|v|·v(2)
wherein: f-air resistance, k-air resistance coefficient, v-movement speed of water jet micro-mass.
Taking the coordinate axes (x, y, z) under the Cartesian coordinate system, decomposing the velocity vector into an axial velocity V x 、V y 、V z By Newton's second law, the three-dimensional motion process of water jet micro-mass ejected from the nozzle to the accurate target striking area can be described as follows, see formulas (1) - (5):
x direction:
y direction:
and Z direction:
wherein: the mass of m-water jet micro-mass, the trajectory coordinates of x, y and z-water jet micro-mass at the moment t, and the initial condition is x| t＝0 ＝0，y| t＝0 ＝0，z| t＝0 ＝0。v x ，v y ，v z -the velocity of the water jet micro-clusters is divided in x, y, z axes respectively; t-the movement time of the water jet micro-clusters; g-gravitational acceleration.
The method takes a certain geometrical parameter of the jet outlet (the diameter D of the jet, the inclination angle alpha of the jet) and a certain relative height H of the jet-perianal area as initial conditions, and uses computer simulation or practical test experiments to determine the turbulent jet track of single-point vortex water flow, so that the optimal geometrical parameter of the jet outlet (the diameter D of the jet and the inclination angle alpha of the jet) can be deduced according to the final perianal contact acting force F and the speed v.
4) Judging whether the structural parameters of the cyclone foaming spray head and the mathematical model of the water jet flow accord with the relation between the cleaning efficiency and the cleaning rate
If the cleaning contact speed is consistent with the cleaning contact angle, the optimal cleaning contact speed, the optimal cleaning contact pressure and the optimal cleaning contact angle are obtained, namely boundary parameters of the installation position; if not, the structural parameters of the swirl foaming nozzle and the mathematical model of the water jet flow are determined again.
5) Determining the number and layout of multi-point cleaning care spouts
The mathematical model of the water jet flow described in the step (3) is shown in the formulas (2) - (5), wherein x, y and z are variables to be solved, t is an independent variable, the analytic solution of the equation set is difficult to obtain due to the coupling relation of the speed, and the practical solution with higher precision can be obtained by a numerical solution method. The fluid mechanics calculation simulation software, such as Fluent series, can be utilized to digitally calculate and simulate the gas-liquid two-phase non-submerged free jet formed by injecting the multi-point water jet into the air.
Mathematical model
1. Transport equation
The Navier-Stokes time mean square of incompressible fluid is used as a control equation, and a closed control equation set is established by adopting an RNG k-epsilon double-square turbulence model, as shown in formulas (1) - (6).
(1) Continuity equation
(2) Differential equation of motion of incompressible actual fluid (N-S equation)
Wherein p is the pressure on the fluid infinitesimal body, pa, τ xx 、τ yy 、τ zz The component of viscous stress tau acting on the surface of the micro-element body due to molecular viscosity, pa; f (f) x 、f y 、f z Is the unit mass force in three directions, m/s 2 。
(3) Reorganization k- ε model (RNG k- ε model)
Wherein: mu (mu) eff ＝μ+μ t ；
Wherein G is k Turbulence energy generation due to the average velocity gradient; g b Turbulence energy generation due to buoyancy effects; y is Y M These parameters are the same as those in the standard k- ε model, for the effect of compressible turbulence pulsations on the total dissipation ratio; alpha k 、α ε Inverse of the effective pluronic of turbulence energy and dissipation ratio, respectively; for high Reynolds number problem, C μ ＝0.0845。
And importing the established three-dimensional model into Fluent preprocessing software for grid division, wherein in order to ensure the optimal effect of grid division, unstructured grid format division is adopted, and the unit type is Tet/Hybrid so as to ensure the smoothness of the grid.
According to the structural characteristics of water jet, the jet in the model is steady flow of incompressible viscous fluid, the turbulence model adopts an RNG k-epsilon model, energy transfer is not considered, and the flow is treated according to incompressible.
The specific implementation method is shown in fig. 6.
In the implementation, firstly, physiological data of a perianal structure of a human body (comprising the position size of the anus from a spray head and an action area) and flushing comfort data of anus Zhou Shuiliu (comprising water flow pressure p, water flow speed v and water flow q) are obtained on the basis of investigation and experiments, then a spray head structure is constructed, and a gas-liquid two-phase non-submerged free jet mathematical model established between a plurality of spray heads and the perianal is simulated; and carrying out comfort evaluation on the obtained boundary parameters of the installation position. The evaluation mode is as follows: two groups of users with different ages and sexes are taken, the number of the users is more than 20, experiments are carried out on the flushing structure, the cleaning degree is taken as a target, four standards of failed, good and excellent are established, and if more than 30% of the results are evaluated as failed, the optimal parameters are finally obtained by continuously modifying the model.
Example 3
This example is a specific application of the multi-point jet vortex water flow cleaning device provided in example 2.
In this particular application, the multi-point jet vortex water flow cleaning device provided in example 2 can be installed inside the upper rim of a toilet bowl to form a smart toilet bowl.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the claims without affecting the spirit of the invention.
Claims (5)
1. The multi-point jet vortex water flow cleaning device is characterized by comprising a plurality of vortex foaming spray heads, wherein the vortex foaming spray heads are positioned in the circumferential and nearby areas of a human body in a working state; wherein:
each of the swirling foaming spray heads comprises: the water inlet, the convergent type spray cavity, the porous filter screen, the water spray runner and the water outlet are sequentially arranged, the water passing area of the convergent type spray cavity is gradually reduced from the water inlet to the water outlet, and the water spray runner is of an inclined streamline structure;
the number of the swirl foaming type spray heads and the position of each swirl foaming type spray head are set through the determined boundary parameters of the installation position;
the mounting location boundary parameters are determined by:
simulating perianal residues of human bodies with different pollution degrees, and defining a cleaning cleanliness grading standard;
according to the cleaning cleanliness grading standard, determining boundary parameters of the cleaning installation position of the anus Zhou Zuiyou through computer simulation or actual test experiments;
the determination mode of the boundary parameters of the installation position specifically comprises the following steps:
the physiological data of the perianal region of the human body and the data of the cleaning comfort range are researched and finished; the physiological data of the perianal region of the human body are used for determining an action region of vortex water flow, and the data of the cleaning comfort range are used for defining acting force and speed of final contact of the vortex water flow;
constructing a relation between cleaning efficiency and cleaning rate according to physiological data of the perianal region of the human body and cleaning comfort range data; wherein, the cleaning efficiency is the cleaning time of accomplishing all regions, namely (cleaning water volume×cleaning time)/(preset water volume×preset time), the cleaning rate is the clean degree of accomplishing the cleaning, namely cleaning area/pollutant area, the cleaning efficiency and cleaning rate relation is: simulating human perianal residues with different pollution degrees, defining a cleaning cleanliness grading standard, and determining the cleaning contact speed, the contact pressure and the contact angle of the anus Zhou Zuiyou according to the cleaning cleanliness grading standard;
according to the relation between the cleaning efficiency and the cleaning rate, constructing structural parameters of the cyclone foaming spray head and a mathematical model of the jet water flow; wherein, whirl foaming formula shower nozzle structural parameter includes: the diameter of the nozzle, the inclination angle of the nozzle and the relative height from the nozzle to the perianal area of the human body;
judging whether the constructed structural parameters of the cyclone foaming spray head and the mathematical model of the water jet flow accord with the relation between the cleaning efficiency and the cleaning rate; if the cleaning contact speed is consistent with the cleaning contact angle, the optimal cleaning contact speed, the optimal cleaning contact pressure and the optimal cleaning contact angle are obtained, namely boundary parameters of the installation position; if not, the structural parameters of the swirl foaming nozzle and the mathematical model of the water jet flow are determined again.
2. The multi-point jet vortex water flow cleaning device according to claim 1, wherein in an operating state, clean water passes through the water inlet, water pressure is increased at the convergent type spray cavity, water flow foaming is formed at the porous filter screen, vortex force is generated at the water spray runner, and finally tangential vortex water flow is formed through the water outlet.
3. The multi-point jet vortex water flow cleaning device of claim 1 wherein the cleaning cleanliness grading criteria comprises:
-fail: the cleaning efficiency is lower than 0.6, and the cleaning rate is lower than 60%;
-pass: the cleaning efficiency is more than 0.6, and the cleaning rate is more than 60%;
good: the cleaning efficiency is more than 0.8, and the cleaning rate is more than 80%;
-excellent: the cleaning efficiency is more than 0.9, and the cleaning rate is more than 95%.
4. The multi-point jet vortex water flow cleaning device of claim 1 further comprising the steps of:
and performing comfort evaluation on the obtained boundary parameters of the installation position, and further correcting the boundary parameters of the installation position according to an evaluation result.
5. Use of a multi-point jet vortex water flow cleaning device as claimed in any one of claims 1 to 4 wherein the multi-point jet vortex water flow cleaning device is mounted inside the upper rim of a toilet bowl.
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| CN113266064B (en) * | 2021-04-30 | 2022-05-17 | 中国标准化研究院 | Device and method for testing comfort degree of intelligent closestool warm water cleaning equipment |
| CN114859766A (en) * | 2022-05-10 | 2022-08-05 | 深圳市恒致云科技有限公司 | Cleaning control method and device for closestool, intelligent closestool and computer equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103917A (en) * | 1993-03-09 | 1995-06-21 | 松下电器产业株式会社 | Clean washing apparatus |
| CN203049748U (en) * | 2013-01-31 | 2013-07-10 | 李飞宇 | Bubble water flushing shower nozzle |
| CN105163703A (en) * | 2013-05-15 | 2015-12-16 | 吉林中航益康科技开发有限公司 | Base body of swirling water flow washing type care apparatus and care apparatus |
| CN208604715U (en) * | 2018-05-25 | 2019-03-15 | 苏州盖业智能科技有限公司 | Multi-point injection vortex water flow cleaning device and eddy flow foaming type spray head |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1627966B1 (en) * | 2003-04-28 | 2012-08-22 | Panasonic Corporation | Sanitary washing apparatus |
-
2018
- 2018-05-25 CN CN201810517192.1A patent/CN108532704B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103917A (en) * | 1993-03-09 | 1995-06-21 | 松下电器产业株式会社 | Clean washing apparatus |
| CN203049748U (en) * | 2013-01-31 | 2013-07-10 | 李飞宇 | Bubble water flushing shower nozzle |
| CN105163703A (en) * | 2013-05-15 | 2015-12-16 | 吉林中航益康科技开发有限公司 | Base body of swirling water flow washing type care apparatus and care apparatus |
| CN208604715U (en) * | 2018-05-25 | 2019-03-15 | 苏州盖业智能科技有限公司 | Multi-point injection vortex water flow cleaning device and eddy flow foaming type spray head |
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