WO2020211345A1 - Dispositif de mesure de la qualité de l'eau, système de distribution d'eau de réfrigérateur et réfrigérateur - Google Patents

Dispositif de mesure de la qualité de l'eau, système de distribution d'eau de réfrigérateur et réfrigérateur Download PDF

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Publication number
WO2020211345A1
WO2020211345A1 PCT/CN2019/117422 CN2019117422W WO2020211345A1 WO 2020211345 A1 WO2020211345 A1 WO 2020211345A1 CN 2019117422 W CN2019117422 W CN 2019117422W WO 2020211345 A1 WO2020211345 A1 WO 2020211345A1
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WO
WIPO (PCT)
Prior art keywords
pipe section
water
water quality
quality detection
connecting pipe
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PCT/CN2019/117422
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English (en)
Chinese (zh)
Inventor
刘赞喜
邵阳
陈兴
王金财
孙明星
司增强
Original Assignee
合肥美的电冰箱有限公司
合肥华凌股份有限公司
美的集团股份有限公司
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Application filed by 合肥美的电冰箱有限公司, 合肥华凌股份有限公司, 美的集团股份有限公司 filed Critical 合肥美的电冰箱有限公司
Publication of WO2020211345A1 publication Critical patent/WO2020211345A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated

Definitions

  • This application relates to the technical field of water quality detection, and in particular to a water quality detection device, a refrigerator water supply system and a refrigerator.
  • FIG. 1 for the structure of the existing water quality detection device, which includes a lead 1, a housing 2 and an electrode pair 3.
  • the basic use method of the existing water quality detection device is to directly insert the water quality detection device into the water tank 4, please refer to FIG. 2. Therefore, this kind of water quality detection device has the following shortcomings: firstly, there is sediment between the electrodes, which affects the detection accuracy; secondly, there is a risk of leakage at the direct junction of the detection device and the water tank; finally, due to the generation of sediment between the electrodes, As a result, the service life of the water quality detection device is relatively short.
  • This application aims to solve at least one of the technical problems existing in the prior art or related technologies.
  • One of the objectives of the present application is to provide a water quality detection device to solve the technical problems of poor detection accuracy, leakage risk, and relatively short life span of the water quality detection device in the prior art.
  • the present application provides a water quality detection device, including an installation pipeline and a water quality detection probe.
  • the installation pipeline includes a water inlet pipe section, a water outlet pipe section, and a connecting pipe section connecting the water inlet pipe section and the water outlet pipe section,
  • the water inlet pipe section and the connecting pipe section are configured such that when water flows through the installation pipe, the flow velocity in the connecting pipe section is greater than the flow velocity of the water inlet pipe section; the water quality detection probe is installed in the connection On the pipe section and extend into the connecting pipe section.
  • the cross-sectional area of the water inlet pipe section is larger than the cross-sectional area of the connecting pipe section.
  • the water inlet pipe section and the connecting pipe section extend along different axes, and the water inlet pipe section and the connecting pipe section are configured such that when water flows through the installation pipe, the The gravitational potential energy of the water in the water inlet pipe section is higher than that of the water in the connecting pipe section.
  • the water inlet pipe section is a curved pipe section
  • the connecting pipe section is a straight pipe section
  • the water quality detection probe is an electrode pair.
  • the connecting pipe section partially bulges outward to form a mounting recess of the electrode pair.
  • the electrode pair includes a positive electrode and a negative electrode, and the end of the positive electrode and the end of the negative electrode are both flush with the inner wall of the connecting pipe section.
  • the electrode pair includes a positive electrode and a negative electrode, and the end of the positive electrode and the end of the negative electrode both protrude relative to the inner wall of the connecting pipe section.
  • the electrode pair includes a positive electrode and a negative electrode, and the positive electrode and the negative electrode are coaxially arranged.
  • the electrode pair includes a positive electrode and a negative electrode, and the positive electrode and the negative electrode are arranged on the same side of the connecting pipe section.
  • the water quality detection probe is a laser light source and a receiving screen.
  • both the inner wall of the water inlet pipe section and the inner wall of the water outlet pipe section are provided with a first groove and a second groove, and the first groove is located in the second groove away from the connection.
  • a clamp ring is fixed in the first groove, and a sealing ring is fixed in the second groove.
  • the water quality detection device of the present application is connected to the pipeline through an installation pipeline, instead of being combined with a water tank. Since the traditional water quality detection device and the water tank are prone to leakage, this type of water quality detection device avoids the combination with the water tank, thereby avoiding leakage at the joint.
  • this kind of water quality detection device because the flow velocity in the connecting pipe section is greater than the flow velocity of the inlet pipe section, the water flow in the connecting pipe section is locally accelerated, so that the water quality detection probe extending into the connecting pipe section is washed by the water flow, avoiding the surface of the water quality detection probe Produce impurity deposits to improve the detection accuracy of the water quality detection device. Moreover, since the water quality detection probe is not affected by the accumulation of impurities, the service life of the water quality detection device can be extended.
  • Another object of the present application is to provide a refrigerator water supply system, including a water container and a water outlet pipe connected to the water container, and the water quality detection device is provided on the water outlet pipe.
  • a water quality detection device is arranged on the water outlet pipe of the water container, so that the water quality of the refrigerator water supply system can be detected.
  • the refrigerator water supply system also includes a drain valve. Once the water quality is detected as unqualified, the refrigerator water supply system will control the drain valve to drain water based on the detection result to avoid the growth and deposition of organic matter in the refrigerator water supply system, and fundamentally prevent The occurrence of water quality problems can improve the safety and sanitation of the refrigerator water supply system and ensure the health of users. Moreover, even if the refrigerator water supply system is not used for a long time, it does not require the user to drain and flush the refrigerator water supply system when it is restarted, which reduces the difficulty of operation and improves the convenience of the user.
  • Another object of the present application is to provide a refrigerator including the above-mentioned refrigerator water supply system.
  • Figure 1 is a schematic diagram of the structure of a water quality detection device in the prior art
  • Figure 2 is a schematic diagram of the installation of a water quality detection device in the prior art
  • FIG. 3 is a schematic diagram of the structure of the water quality detection device in the first embodiment of the present application.
  • FIG. 4 is a schematic diagram of the structure of the water quality detection device of the second embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a water quality detection device of Embodiment 3 of the present application.
  • FIG. 6 is a schematic structural diagram of a water quality detection device according to Embodiment 4 of the present application.
  • FIG. 7 is a schematic structural diagram of a water quality detection device according to Embodiment 5 of the present application.
  • FIG. 8 is a schematic structural diagram of a water quality detection device of Embodiment 6 of the present application.
  • FIG. 9 is a schematic diagram of the installation of the water quality detection device in the refrigerator water supply system according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of the installation structure of the water quality detector and the controller in the refrigerator water supply system according to an embodiment of the present application;
  • connection and “connected” should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral Ground connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium.
  • connection should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral Ground connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium.
  • the water quality detection device of the first embodiment includes an installation pipe 9 and a water quality detection probe.
  • the installation pipeline 9 includes a water inlet pipe section 901, a water outlet pipe section 903, and a connecting pipe section 902 connecting the water inlet pipe section and the water outlet pipe section.
  • the cross-sectional area of the water inlet pipe section 901 is larger than the cross-sectional area of the connecting pipe section 902.
  • the water quality detection probe is installed on the connecting pipe section and extends into the connecting pipe section.
  • This kind of water quality detection device is connected to the pipeline by installing the pipeline 9 instead of being combined with the water tank. Since the traditional water quality detection device and the water tank are prone to leakage, this type of water quality detection device avoids the combination with the water tank, thereby avoiding leakage at the joint. In addition, since the cross-sectional area of the water inlet pipe section is larger than that of the connecting pipe section, the flow velocity in the connecting pipe section is greater than that of the water inlet pipe section. Therefore, the water flow in the connecting pipe section is accelerated locally, so that the The water quality detection probe in the connecting pipe section is scoured by the water flow to avoid impurity deposits on the surface of the water quality detection probe, so as to improve the detection accuracy of the water quality detection device.
  • the main purpose of accelerating the water flow at the connecting pipe section is to ensure that the water flow at the water quality detection probe has a large flow velocity. Moreover, since the water quality detection probe is not affected by the accumulation of impurities, the service life of the water quality detection device can be extended.
  • the water quality detection probe is installed on the connecting pipe section and extends into the connecting pipe section” refers to all situations in which the water quality detection probe can contact the liquid inside the connecting pipe section. Including the case where the end of the water quality detection probe is flush with the inner wall of the connecting pipe section, and the case where the end of the water quality detecting probe protrudes relative to the inner wall of the connecting pipe section.
  • the water quality detection probe is electrode pair 3, and the electrode pair 3 is coaxially arranged.
  • the erosion of the two electrodes is the same, thereby preventing the upstream electrode from being more easily damaged.
  • the electrode pair 3 is connected to the circuit through the wire 1.
  • the connecting pipe section partially bulges outward to form a mounting recess for the electrode pair 3.
  • the electrode pair 3 is installed in the mounting recess, wherein the electrode pair 3 includes a positive electrode and a negative electrode, and the number of the mounting recesses is two, which are respectively used for mounting the positive electrode and the negative electrode.
  • the electrode pair 3 is installed reliably, and is hardly affected by water flow, which can extend the life of the water quality detection device.
  • the end of the positive electrode and the end of the negative electrode of the electrode pair 3 protrude relative to the inner wall of the connecting pipe section. This situation can ensure that the electrode pair 3 is in full contact with the water flow to accurately detect the water quality.
  • the end of the positive electrode and the end of the negative electrode of the electrode pair 3 can also be flush with the inner wall of the connecting pipe section, so as to prevent the water flow from washing the electrode pair 3 and ensure the service life of the water quality detection device.
  • both the inner wall of the water inlet pipe section and the inner wall of the water outlet pipe section are provided with a first groove and a second groove.
  • the clamp ring 5 is fixed in the first groove
  • the sealing ring 8 is fixed in the second groove.
  • a sealed connection between the installation pipe 9 and the pipeline is realized.
  • the function of the clamp ring 5 is mainly to lock the installation pipeline 9 and the pipeline
  • the function of the sealing ring 8 is mainly to realize the seal between the installation pipeline 9 and the pipeline and prevent water leakage.
  • the first groove is located on the side of the second groove away from the connecting pipe section.
  • the first groove is located outside the second groove, that is, the collar 5 is located outside the sealing ring 8, and the sealing effect of the sealing ring 8 can be better ensured.
  • the cross sections of the water inlet pipe section and the water outlet pipe section are round (ignoring the wall thickness of the water inlet pipe section and the water outlet pipe section)
  • the O-shaped seal ring 8 can be used as the sealing ring 8 at this time.
  • clamping methods for sealing connection between the installation pipe 9 and the pipeline
  • threaded connection methods welding methods or bonding methods
  • welding methods or bonding methods can also be used for connection.
  • the installation pipe 9 and the pipe section that matches the installation pipe 9 can be clamped by clamps.
  • the threaded connection method is adopted, the ends of the water inlet pipe section and the water outlet pipe section are provided with internal threads/external threads, and the pipes are provided with external threads/internal threads that cooperate with them.
  • the electrode pair 3 is arranged on the same side of the connecting pipe section.
  • the positive electrode and the negative electrode are connected to the external circuit from the same side, thereby facilitating the setting of the external circuit.
  • the positive electrode and the negative electrode of the electrode pair 3 are arranged in parallel, and the wire 1 is connected from the same side of the connecting pipe section.
  • the structure of the connecting pipe section is more regular, thereby facilitating preparation.
  • the third embodiment Similar to the first embodiment, the details in the third embodiment will not be repeated.
  • the difference from the first embodiment is that in the third embodiment, please refer to FIG. 5, in order to make the flow velocity in the connecting pipe section 902 greater than the flow velocity of the water inlet pipe section 901 when the water flow is introduced into the installation pipe 9, the water inlet pipe section 901
  • the connecting pipe section 902 and the connecting pipe section 902 extend along different axes, and the water inlet pipe section 901 and the connecting pipe section 902 meet the following requirements: when water flows into the installation pipe 9, the gravitational potential energy of the water in the water inlet pipe section is higher than that of the water in the connecting pipe section.
  • the gravitational potential energy of the water in the inlet pipe section is higher than the gravitational potential energy of the water in the connecting pipe section
  • the gravitational potential energy of the water in the inlet pipe section is higher than the gravitational potential energy of the water in the connecting pipe section
  • the electrode pair 3 is arranged on the same side of the connecting pipe section.
  • the positive electrode and the negative electrode are connected to the external circuit from the same side, thereby facilitating the setting of the external circuit.
  • the positive electrode and the negative electrode of the electrode pair 3 are arranged in parallel. In this case, the structure of the connecting pipe section is more regular, thereby facilitating preparation.
  • the fifth embodiment will not be repeated.
  • the difference from the first embodiment is that in the fifth embodiment, in order to make the flow velocity in the connecting pipe section 902 greater than the flow velocity of the water inlet pipe section 901 when water flows into the installation pipe 9, the water inlet pipe section 901 is set as a curved pipe section , See Figure 7. Furthermore, even if the water flow carries a small amount of impurities or breeds a small amount of organic matter, the impurities or opportunities will only be cut off in the inlet pipe section, thereby avoiding the deposition of organic matter at the water quality detection probe when the water flows through the connecting pipe section.
  • the flow velocity in the connecting pipe section will be greater than that in the water inlet pipe section, causing the water flow to scour the water quality detection probe and further avoid the deposition of organic matter on the water quality detection probe.
  • the sixth embodiment will not be repeated.
  • the difference from the fifth embodiment is that in the sixth embodiment, referring to FIG. 8, the electrode pair 3 is arranged on the same side of the connecting pipe section.
  • the positive electrode and the negative electrode are connected to the external circuit from the same side, thereby facilitating the setting of the external circuit.
  • the positive electrode and the negative electrode of the electrode pair 3 are arranged in parallel. In this case, the structure of the connecting pipe section is more regular, thereby facilitating preparation.
  • the specific arrangement of the electrode pair 3 is not limited by Embodiment 1 to Embodiment 6, as long as the arrangement of the electrode pair 3 can meet the requirements for water quality detection.
  • the water quality detection probe can also adopt any form disclosed in the prior art.
  • the water quality detection probe can also take the form of a laser light source and a receiving screen. Among them, the content of suspended solids in water can be detected through the laser light source and the receiving screen.
  • the water quality detection probe may also adopt a magnetic probe, a thermal probe or any probe form that has been disclosed in the prior art.
  • the structure of the installation pipe 9 of the present application is not limited by the examples in the above embodiments, as long as the water inlet pipe section and the connecting pipe section meet the requirement that "when water flows into the installation pipe 9, the flow velocity in the connecting pipe section is greater than the water inlet pipe section.
  • the flow rate is sufficient, and the specific structure is not limited by the above examples.
  • the seventh embodiment provides a refrigerator water supply system, including a water container 12 and a water outlet pipe connected to the water container 12, and the water quality detection device 13 mentioned in the above embodiment is provided on the water outlet pipe.
  • a drain valve 14 is provided on the water outlet pipeline.
  • the refrigerator water supply system also includes a controller 16, see Fig. 10.
  • the water quality detection device 13 is used to obtain the water quality parameters of the water in the water outlet pipe and send it to the controller 16, and the controller 16 controls the drain valve 14 according to the water quality parameters. And when the water quality parameter exceeds the standard, the drain valve 14 is controlled to open.
  • a water quality detection device 13 is provided on the water outlet pipe of the water container 12, so as to detect the internal water quality of the refrigerator water supply system.
  • the refrigerator water supply system also includes a drain valve 14. Once the water quality is detected as unqualified, the refrigerator water supply system will control the drain valve 14 to drain water based on the detection result to avoid the growth and deposition of organic matter in the water container 12, and then fundamentally To prevent the occurrence of water quality problems, to improve the safety and sanitation of the refrigerator water supply system, and to ensure the health of users.
  • the refrigerator water supply system is not used for a long time, it does not require the user to drain and flush the refrigerator water supply system when it is restarted, which reduces the difficulty of operation and improves the convenience of the user.
  • the refrigerator water supply system also includes a water inlet pipe of the water container 12.
  • a water inlet valve 10 is provided in the water inlet pipe.
  • the water inlet valve 10 can control the on-off between the entire refrigerator water supply system and the water source.
  • the type of the water inlet valve 10 is not limited, for example, it may be an electric control valve, a magnetic control valve, a mechanical valve, etc.
  • a filter 11 can also be provided in the refrigerator water supply system for filtering water in the refrigerator water supply system, so as to obtain water quality that meets the needs of users.
  • the filter 11 should be installed in any position of the water supply system of the refrigerator, but in order to avoid impurities and deposits in the water container 12, the filter 11 is preferably installed on the water inlet pipe, and the water entering the water container 12 is to meet user needs It can also avoid the accumulation and precipitation of organic matter in the water container 12.
  • a water diversion valve 15 is also provided on the water outlet pipe.
  • the first outlet of the water diversion valve 15 is connected to the ice maker, and the second outlet is connected to the distributor on the door of the refrigerator water supply system.
  • the water diversion valve 15 is provided so that the user can use the water provided by the refrigerator water supply system to make ice, or can directly obtain drinking water through the dispenser.
  • the application of water supply to the water container 12 of the refrigerator water supply system is not limited by the examples here, and can also be used for any other purposes.
  • the water outlet pipeline includes a first water outlet pipe 18 and a second water outlet pipe 19.
  • the drain valve 14 is arranged on the first outlet pipe 18, and the water diversion valve 15 is arranged on the second outlet pipe 19.
  • the water quality detection device 13 is arranged on the second water outlet pipe 19.
  • the water quality detection device 13 is arranged on the common inlet pipe of the first outlet pipe 18 and the second outlet pipe 19.
  • the examples in FIGS. 9 and 10 do not constitute a restriction on the location of the water quality detection device 13.
  • a water pump 17 is installed on the first water outlet pipe 18, and the water pump 17 is used to pump and deliver water to the refrigerator water supply system.
  • the water pump 17 is installed on the common inlet pipe of the first outlet pipe 18 and the second outlet pipe 19.
  • the installation position of the water pump 17 is not limited and can be any position of the refrigerator water supply system.
  • any pressure-increasing device or negative pressure device disclosed in the prior art can also be substituted.
  • the water container 12 in the refrigerator water supply system may be a kettle.
  • the purpose of the water quality detection device 13 is to detect whether the water quality in the kettle meets the requirements.
  • controller 16 is connected to the user interface 20, and can then display the situation of the refrigerator water supply system and receive external instructions based on the user interface 20.
  • a refrigerator including the above refrigerator water supply system.
  • the water container 12 of the refrigerator water supply system can be arranged in a compartment of the refrigerator, preferably a refrigerated compartment, so as to provide cool drinking water in summer.
  • This application relates to a water quality detection device, a refrigerator water supply system, and a refrigerator, wherein the water quality detection device avoids being combined with a water tank, thereby avoiding leakage at the junction.
  • the water flow in the connecting pipe section realizes a local acceleration, so that the water quality detection probe protruding into the connecting pipe section is scoured by the water flow to avoid impurity deposits on the surface of the water quality detection probe.
  • improve detection accuracy Since the water quality detection probe is not affected by the accumulation of impurities, the service life of the water quality detection device can be extended.

Abstract

La présente invention concerne le domaine technique de la mesure de la qualité de l'eau, et concerne un dispositif de mesure de la qualité de l'eau, un système de distribution d'eau de réfrigérateur et un réfrigérateur. Le dispositif de mesure de la qualité de l'eau comprend une canalisation de montage (9) et une sonde de mesure de la qualité de l'eau, la canalisation de montage (9) comprenant une section de tuyau d'entrée d'eau (901), une section de tuyau de sortie d'eau (903), et une section de tuyau de raccordement (902) faisant communiquer la section de tuyau d'entrée d'eau (901) et la section de tuyau de sortie d'eau (903), et dans les conditions dans lesquelles un écoulement d'eau est introduit dans la canalisation de montage (9), une vitesse d'écoulement dans la section de tuyau de raccordement (902) est supérieure à une vitesse d'écoulement dans la section de tuyau d'entrée d'eau (901) ; et la sonde de mesure de la qualité de l'eau est montée sur la section de tuyau de raccordement (902) et s'étend dans la section de tuyau de raccordement (902). Le dispositif de mesure de la qualité de l'eau évite la combinaison de ceux-ci avec un réservoir d'eau, et peut ainsi empêcher une fuite au niveau d'une jonction. De plus, étant donné que la vitesse d'écoulement dans la section de tuyau de raccordement (902) est supérieure à la vitesse d'écoulement dans la section de tuyau d'entrée d'eau (901), l'accélération locale de l'écoulement d'eau dans la section de tuyau de raccordement (902) est obtenue, de sorte que la sonde de mesure de la qualité de l'eau s'étendant dans la section de tuyau de raccordement (902) est purgée par l'écoulement d'eau, et cela empêche les impuretés de se déposer sur la surface de la sonde de mesure de la qualité de l'eau, de façon à améliorer la précision de mesure de celle-ci. Étant donné que la sonde de mesure de la qualité de l'eau n'est pas influencée par l'accumulation d'impuretés, la durée de vie du dispositif de mesure de la qualité de l'eau peut être prolongée.
PCT/CN2019/117422 2019-04-17 2019-11-12 Dispositif de mesure de la qualité de l'eau, système de distribution d'eau de réfrigérateur et réfrigérateur WO2020211345A1 (fr)

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CN201910307545.XA CN111830085B (zh) 2019-04-17 2019-04-17 水质检测装置、冰箱供水系统及冰箱

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