True boiling water purifying and drinking machine

Abstract

The invention discloses a true boiling water purifying and drinking machine which comprises a machine shell and a control device, the machine shell is provided with a water purifying module, a water pump, an instant heating module and a water outlet nozzle which are sequentially connected through a pipeline, the water outlet nozzle is of a three-section controllable boiling water outlet structure, and the water outlet nozzle comprises a reducing pressurizing pipe, a micropore boiling chamber and a water vapor separation chamber which are sequentially connected in the flow direction; the top of the water-vapor separation chamber is provided with a first connector used for being communicated with the micropore boiling chamber and a second connector used for discharging water vapor, the second connector is connected with the water inlet end of the water pump through a pipeline provided with a one-way valve, the lower portion of the water-vapor separation chamber is provided with a water outlet cavity located below the second connector, and the water outlet cavity is rotationally provided with a stirring impeller. A water outlet is formed in the bottom of the water outlet cavity. According to the water outlet nozzle structure, 100 DEG C true boiling water outlet is achieved, steam direct injection is avoided, and the problems that the water outlet temperature of an existing water outlet nozzle structure is lower than 100 DEG C, water is splashed, and steam is directly exhausted are well solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pure drinking machine, and particularly relates to a true boiling pure drinking machine. BACKGROUND

[0002] At present, the existing pure drinking machine generally adopts a thick film heating body of instant heating type to heat the purified water to a set temperature and then make the water flow out from a water outlet nozzle. The structure has the following disadvantages:

[0003] (1) The water outlet nozzle is only a straight pipe or a simple elbow pipe, and a large amount of flash steam is generated at the end of the nozzle due to the sudden drop of pressure, so that the measured water temperature is lower than 100 DEG C, and it is difficult to realize true boiling.

[0004] (2) Steam and hot water are mixed and sprayed, which causes the water to splash and has a high risk of scalding.

[0005] (3) The steam is directly discharged into the atmosphere, which wastes energy and increases the indoor humidity. SUMMARY

[0006] The present application aims to provide a true boiling pure drinking machine, which is provided with a special water outlet nozzle structure, a tapered pressure increasing pipe at the front section makes the hot water enter a micro-porous boiling chamber at the middle section under a critical supersaturation state, forms a periodic pulsation of local high pressure-sudden pressure drop, induces continuous and stable nucleate boiling, then enters a water-steam separation chamber at the rear section, separates the steam from the water by the cyclone formed by the stirring impeller, and makes the steam condensation latent heat flow back to the water inlet end of the water pump, so that the water outlet temperature is 100 DEG C, the steam is not directly sprayed, and the problems of the water outlet temperature being lower than 100 DEG C, the water splashing and the steam being directly discharged are well solved.

[0007] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0008] A true boiling pure drinking machine comprises a machine shell and a control device, the machine shell is provided with a water purification module, a water pump, an instant heating module and a water outlet nozzle which are connected in sequence by pipelines, the water outlet nozzle is a three-section controllable boiling water outlet structure, the water outlet nozzle comprises a tapered pressure increasing pipe, a micro-porous boiling chamber and a water-steam separation chamber which are connected in sequence along the flow direction, the top of the water-steam separation chamber is respectively provided with a first interface for communicating with the micro-porous boiling chamber and a second interface for discharging water vapor, the second interface is connected with the water inlet end of the water pump through a pipeline provided with a one-way valve, the lower part of the water-steam separation chamber is provided with a water outlet cavity below the second interface, the water outlet cavity is rotatably provided with a stirring impeller, and the bottom of the water outlet cavity is provided with a water outlet port.

[0009] Further, the water vapor separation chamber is provided with a guide slope below the first interface and inclinedly distributed towards the water outlet cavity, the guide slope is provided with at least one guide convex strip extending towards one side of the water outlet cavity, and the upper portion of the stirring impeller extends upwards above the water outlet cavity.

[0010] Further, the water outlet cavity is provided with an overflow pipe hollowly and vertically distributed, the top end of the overflow pipe is higher than the guide slope, the overflow pipe, the water outlet and the water outlet cavity are coaxially distributed, and the stirring impeller is rotationally installed on the pipe wall of the overflow pipe.

[0011] Further, the top wall of the water vapor separation chamber is provided with a baffle vertically and downwardly extending, the baffle is between the first interface and the second interface, and the bottom end of the baffle is lower than the top end of the overflow pipe.

[0012] Further, the inner wall of the water outlet is provided with a helically distributed drainage convex rib.

[0013] Further, the tapered booster pipe is a conical pipe body with a gradually decreasing pipe diameter along the flow direction, and the conical angle of the tapered booster pipe is 8°-15°.

[0014] Further, the inner cavity of the micro-porous boiling chamber is provided with a plurality of micro-porous plates with uniformly distributed pressurizing through holes along the flow direction, a pressure reduction cavity is formed between two adjacent micro-porous plates, and the pore diameter of the pressurizing through holes on the micro-porous plate ranges from 0.3mm to 1.2mm.

[0015] Further, the pore diameter of the pressurizing through holes on each micro-porous plate gradually decreases along the flow direction, and the space volume of each pressure reduction cavity gradually increases along the flow direction.

[0016] Further, the material of the micro-porous plate is SUS316L, the surface of the micro-porous plate is provided with a diamond-like carbon layer with a hardness of ≥20GPa, and the inlet of the pressurizing through hole is provided with a chamfer.

[0017] Further, the inlet end of the tapered booster pipe is connected with an electromagnetic proportional regulating valve for adjusting the opening degree according to the water quality TDS value, the water outlet end of the water purification module is provided with a TDS probe for detecting water hardness, and the electromagnetic proportional regulating valve and the TDS probe are connected with the control device respectively.

[0018] Compared with the prior art, the present application provides a true boiling water purification machine, which has the following beneficial effects:

[0019] This invention employs a unique three-section controllable boiling water outlet structure. The gradually converging pressure boosting pipe at the front section allows hot water to enter the microporous boiling chamber in the middle section under critical supersaturation, forming a periodic pulsation of local high pressure and sudden pressure drop, inducing continuous and stable nucleate boiling. Then, the steam-water mixture enters the water-vapor separation chamber at the rear section, where the swirling flow formed by the stirring impeller causes the steam to rise externally and the hot water to sink internally, achieving rapid separation of steam and water. The steam after external swirling flows back to the water pump inlet through the second interface at the top and utilizes its latent heat, while the hot water after internal swirling, at a temperature of ≥100°C, converges into a water column and flows downward through the outlet.

[0020] This invention achieves true boiling water output at 100℃ while avoiding direct steam injection, effectively solving the problems of water temperature below 100℃, water splashing, and direct steam discharge in existing water outlet structures. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of a half-section structure of the present invention;

[0024] Figure 3 This is a three-dimensional structural diagram of the water outlet.

[0025] Figure 4 This is a schematic diagram of a half-section of the water outlet.

[0026] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0027] Figure 6 This is a schematic diagram of the assembly of the tapered booster tube, the microporous boiling chamber, and the water vapor separation chamber;

[0028] Figure 7 Exploded view of the components of the water vapor separation chamber;

[0029] Figure 8 This is a schematic diagram of the assembly of the stirring impeller;

[0030] Figure 9 This is an exploded view of the components of a microporous boiling chamber.

[0031] Label: 1, shell; 2, control device; 3, water purification module; 4, water pump; 5, instant heating module; 6, water outlet nozzle; 61, tapered booster pipe; 62, microporous boiling chamber; 621, microporous plate; 6211, pressurized through hole; 622, positioning boss; 623, pressure reduction cavity; 624, positioning step; 625, second clamping groove; 626, second clamping spring; 627, threaded joint; 628, outer hexagonal driving block; 63, water vapor separation chamber; 631, first interface; 632, second interface; 633, water outlet cavity; 634, water outlet; 635, flow guide slope; 636, flow guide convex strip; 637, baffle; 638, drainage convex rib; 639, connecting arm; 64, stirring impeller; 65, overflow pipe; 651, positioning ring; 652, first clamping groove; 66, first clamping spring. DETAILED DESCRIPTION

[0032] The technical solutions of the present application will be described below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0034] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0035] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly interpreted, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature. The first feature and the second feature can be in direct contact, or the first feature and the second feature can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or only indicates that the first feature is less than the second feature in horizontal height.

[0037] The present application will be further described in detail below by means of specific examples and in conjunction with the accompanying drawings.

[0038] Please refer to Figures 1-9 The embodiment provides a true boiling water purifier, which comprises a shell 1 and a control device 2, the shell 1 is provided with a water purifier module 3, a water pump 4, an instant heating module 5 and a water outlet nozzle 6 which are sequentially connected through pipelines, the water outlet nozzle 6 is a three-section controllable boiling water outlet structure, the water outlet nozzle 6 comprises a tapered booster pipe 61, a microporous boiling chamber 62 and a water-vapor separation chamber 63 which are sequentially connected in the flow direction, the top of the water-vapor separation chamber 63 is respectively provided with a first interface 631 for communicating with the microporous boiling chamber 62 and a second interface 632 for discharging water vapor, the second interface 632 is connected with the water inlet end of the water pump 4 through a pipeline provided with a one-way valve, the lower part of the water-vapor separation chamber 63 is provided with a water outlet cavity 633 located below the second interface 632, the water outlet cavity 633 is rotatably provided with a stirring impeller 64, and the bottom of the water outlet cavity 633 is provided with a water outlet 634.

[0039] By the above structure, the water pump sends the purified water treated by the purified water module into the instant heating module at a constant pressure of 250 kPa, and the water is heated to 105 ℃ and becomes super-saturated water, which enters the outlet nozzle. Due to the special three-stage controllable boiling outlet nozzle structure, the tapered booster pipe in the front section makes the hot water in a critical super-saturated state enter the micro-porous boiling chamber in the middle section, forming a periodic pulsation of local high pressure-sudden pressure drop, inducing continuous and stable nucleate boiling, and then the steam-water mixture enters the water vapor separation chamber in the rear section. The steam is lifted by the outer rotation of the cyclone formed by the stirring impeller, and the hot water is lowered by the inner rotation to realize the rapid separation of steam and water. The steam after the outer rotation is returned to the water inlet end of the water pump through the second interface above and uses its latent heat. The hot water after the inner rotation flows out through the water outlet at a temperature of ≥100 ℃, thereby realizing 100 ℃ true boiling water outlet and avoiding direct steam injection, and well solving the problems of existing outlet nozzle structures, such as water outlet temperature lower than 100 ℃, water splashing, and direct steam injection.

[0040] In some embodiments, with reference to Figure 4 , Figure 7 and Figure 8 , the water vapor separation chamber 63 is provided with a flow guide inclined surface 635 below the first interface 631 and inclinedly distributed towards the water outlet cavity 633, the flow guide inclined surface 635 is provided with at least one flow guide convex strip 636 extending towards one side of the water outlet cavity 633, and the upper part of the stirring impeller 64 extends upwards beyond the upper part of the water outlet cavity 633. In this way, the steam-water mixture entering the water vapor separation chamber can flow towards the water outlet cavity and form a hydraulic force to automatically rotate the stirring impeller by the guiding action of the flow guide inclined surface and the flow guide convex strip; at the same time, the setting of the flow guide inclined surface can also avoid residual liquid in the water vapor separation chamber after water outlet.

[0041] In some specific embodiments, with reference to Figure 4 , Figure 7 and Figure 8 , the water outlet cavity 633 is provided with a hollow vertically distributed overflow pipe 65, the top end of the overflow pipe 65 is higher than the flow guide inclined surface 635, the overflow pipe 65, the water outlet 634 and the water outlet cavity 633 are coaxially distributed, and the stirring impeller 64 is rotationally installed on the pipe wall of the overflow pipe 65. By setting the overflow pipe, on the one hand, it can serve as the rotating shaft for installing the stirring impeller, thereby positioning the stirring impeller, and on the other hand, when a large flow of water is needed, the overflow pipe can be used to speed up the water outlet. In addition, since the overflow pipe, the water outlet and the water outlet cavity are coaxially distributed, the outer wall of the overflow pipe can guide the direction of water outlet when water is outletting, and the hot water sinking downward can gather along the outer wall of the overflow pipe and condense into a water column flowing downward.

[0042] Specifically, as Figure 7 and Figure 8As shown, the overflow pipe 65 is a hollow cylindrical pipe body, and the outer wall of the overflow pipe 65 is provided with a positioning ring 651 distributed in a ring shape and a first clamping groove 652 located above the positioning ring 651, and the first clamping groove 652 is installed with a first clamping spring 66, and the stirring impeller 64 is rotatably installed between the positioning ring 651 and the first clamping spring 652. Through the clamping of the first clamping spring, the stirring impeller can be sleeved on the outer wall of the overflow pipe.

[0043] More specifically, as shown in Figure 8 The positioning ring 651 is connected to the inner wall of the water outlet cavity 633 through a plurality of circumferentially arrayed connecting arms 639, so that the overflow pipe 65 is centrally and fixedly distributed in the water outlet cavity 633.

[0044] As an improved embodiment, as shown in Figure 4 The top wall of the water-vapor separation chamber 63 is provided with a baffle 637 extending vertically downward, the baffle 637 is located between the first interface 631 and the second interface 632, and the bottom end of the baffle 637 is lower than the top end of the overflow pipe 65. In this way, after the steam-water mixture enters the water-vapor separation chamber, the baffle can play a role of isolation, so as to reduce the flow rate in the water-vapor separation chamber and make part of the gaseous water liquefy into liquid water; at the same time, due to the arrangement of the baffle, the liquid water can be better pushed to rotate the stirring impeller under the guidance of the guide slope and the guide convex strip, and the baffle and the inner wall near the water outlet cavity together enclose a relatively symmetrical and dead angle-free space, facilitating the stirring and separation of steam.

[0045] As an improved embodiment, referring to Figure 4 and Figure 7 The inner wall of the water outlet 634 is provided with a spiral distribution of drainage convex ribs 638. In this way, when the hot water sinks inwards, it can further promote the inwards rotation effect under the guidance of the drainage convex ribs, so that the outflowing hot water forms a water column to avoid splashing.

[0046] In some specific embodiments, referring to Figure 3 and Figure 4 The tapered booster pipe 61 is a conical pipe body with a gradually decreasing pipe diameter along the flow direction, and the taper angle of the tapered booster pipe 61 is 8°~15°. As an example, the taper angle of the tapered booster pipe 61 can be set to 10°.

[0047] In some specific embodiments, referring to Figures 3-6 and Figure 9The inner cavity of the micro-hole boiling chamber 62 is provided with a plurality of micro-hole plates 621 with uniformly distributed pressurized through holes 6211 in the flow direction, and a pressure reduction cavity 623 is formed between two adjacent micro-hole plates 621. The diameter of the pressurized through holes 6211 on each micro-hole plate 621 ranges from 0.3 mm to 1.2 mm. The diameter of the pressurized through holes 6211 on each micro-hole plate 621 gradually decreases along the flow direction, and the volume of each pressure reduction cavity 623 gradually increases along the flow direction.

[0048] Specifically, as an example, as shown in Figure 5 and Figure 9 , the inner cavity of the micro-hole boiling chamber 62 is provided with five micro-hole plates 621 with a thickness of 0.3 mm, and the diameters of the pressurized through holes 6211 on the five micro-hole plates 621 are Φ1.0 mm, Φ0.9 mm, Φ0.8 mm, Φ0.7 mm and Φ0.6 mm, respectively, forming a five-stage micro-hole array; the volume of each pressure reduction cavity 623 is designed to be 1.2-1.5 times the total volume of the bubbles of the previous stage, ensuring that the bubbles do not merge into large bubbles and maintaining the "discrete bubble nucleate boiling" state, thereby ensuring uniform water temperature at the outlet and no intermittent steam eruption. Among them, the tapered booster pipe located upstream accelerates the 105℃ supersaturated water to ≥3 m / s, and when entering the first micro-hole plate, the cross-sectional area suddenly decreases to produce the first local high pressure P1 (≈300 kPa); after the high-pressure water flow passes through the pressurized through holes, it suddenly expands in the first pressure reduction cavity, and the pressure instantaneously drops to P2 (≈120 kPa), close to the saturated vapor pressure of water, resulting in local vaporization and generating a large number of micro-bubbles; the bubble-water mixture enters the next micro-hole plate and is again pressurized to P3 (≈280 kPa), the bubbles instantaneously collapse and release latent heat, forming a local high-temperature hot spot, and then the pressure is again suddenly reduced to P4 (≈110 kPa), forming secondary vaporization; in this way, the process of "high-pressure compression-sudden pressure reduction vaporization-recompression collapse-revaporization" is repeated several times in the micro-hole boiling chamber.

[0049] In some specific embodiments, referring to Figures 3-6 , the micro-hole boiling chamber 62 is composed of a hollow cylindrical metal pipe body, and the two ends have threaded joints 627, respectively, which can be connected with the tapered booster pipe 61 and the water-vapor separation chamber 63, respectively, and are convenient for disassembly, cleaning or replacement; the outer wall of the micro-hole boiling chamber 62 is provided with an outer hexagonal driving block 628 for easy installation.

[0050] In some specific embodiments, the material of the microporous plate 621 is SUS316L, and the surface of the microporous plate 621 is provided with a diamond-like carbon layer with a hardness of ≥20 GPa, and a chamfer is provided at the entrance of the pressurized through hole 6211. Specifically, the material of the microporous plate 621 is SUS316L, and the surface of the microporous plate 621 is provided with a 20nm-thick diamond-like carbon (DLC) layer deposited by plasma-enhanced chemical vapor deposition (PECVD), with a hardness of ≥20 GPa and a water contact angle of ≥110°, significantly reducing the adhesion of inorganic salts and organic matter; at the same time, a 0.05mm×45° chamfer is machined at the entrance of the pressurized through hole 6211 to reduce the entrance resistance and inhibit cavitation erosion.

[0051] In some specific embodiments, referring to Figure 5 and Figure 9 The edge of each microporous plate 621 is provided with a ring-shaped positioning boss 622, and a pressure reduction cavity 623 is formed between adjacent two microporous plates 621 by the positioning boss 622.

[0052] In some specific embodiments, referring to Figure 5 and Figure 9 The inner wall of the microporous boiling chamber 62 is provided with a ring-shaped positioning step 624 and a second clamping groove 625 located below the positioning step 624, the second clamping groove 625 is installed with a second clamping spring 626, and each microporous plate 621 is installed in sequence between the positioning step 624 and the second clamping spring 626. Through the clamping of the second clamping spring, each microporous plate can be embedded in the microporous boiling chamber, and its installation method is also convenient for disassembly, cleaning or replacement of the microporous plate.

[0053] As an improved embodiment, the inlet end of the tapered booster pipe 61 is connected with an electromagnetic proportional regulating valve whose opening degree is adjusted according to the water quality TDS value, the outlet end of the water purification module 3 is provided with a TDS probe for detecting water hardness, and the electromagnetic proportional regulating valve and the TDS probe are connected with the control device 2 respectively. Specifically, the control device 2 pre-stores a TDS-opening degree mapping table. As an example, when TDS>200ppm, the opening degree is reduced by 15%, the pressure of the tapered booster pipe is increased to 280kPa, and it is ensured that high-hardness water can also be fully boiled; when TDS<50ppm, the opening degree is increased by 10%, the pressure is reduced to 220kPa, and the energy consumption is reduced.

[0054] In some specific embodiments, as an example, the water purification module 3 adopts a static water filter core with PP cotton+activated carbon+RO reverse osmosis membrane three-stage series filtration, and the pure water flow is 1L / min; the instant heating module 5 adopts a 220V / 2200W thick film instant heater, and the power density is ≥60W / cm 2The PID temperature control is 98-105 DEG C, and the temperature control precision is ±0.5 DEG C; the control device 2 is a main control circuit board with a PID temperature control unit.

[0055] Reference Figures 1-9 The working process is described as follows:

[0056] The water pump 4 sends the purified water treated by the purified water module 3 to the instant heating module 5 at a constant pressure of 250 kPa, and the water is heated to 105 DEG C and becomes super-saturated water, and the tapered booster pipe 61 in the front section pressurizes the hot water and maintains it in a critical super-saturated state, and then the water passes through the micro-porous boiling chamber 62 to generate a periodic pressure drop, and the water is instantaneously boiled, and then the steam-water mixture enters the water-vapor separation chamber 63 in the rear section, and the stirring impeller 64 makes the steam rotate outward and upward and the hot water rotate inward and downward, so as to realize the rapid separation of steam and water, the steam after the outward rotation is returned to the water inlet end of the water pump 4 through the second interface 632 above and preheats the water to a certain extent by using the latent heat, and the hot water after the inward rotation is gathered into a water column at a temperature of 100.2 DEG C through the water outlet 634 and flows out downward.

[0057] The above embodiments only exemplarily illustrate the concept and technical solutions of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical idea disclosed by the present application should be covered by the claims of the present application.

[0058] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments which can be understood by those skilled in the art.

Claims

1. A true boiling water purifier comprising a casing and a control device, the casing is provided with a water purifier module, a water pump, an instant heating module and a water outlet nozzle connected in sequence by pipes, characterized in that, The water outlet nozzle is a three-section controllable boiling water outlet structure, comprising a tapered pressure-increasing pipe, a micro-porous boiling chamber and a water-vapor separation chamber connected in sequence along the flow direction, the top of the water-vapor separation chamber is respectively provided with a first interface for communication with the micro-porous boiling chamber and a second interface for discharging water vapor, the second interface is connected with the water inlet end of the water pump through a pipeline provided with a one-way valve, the lower part of the water-vapor separation chamber is provided with a water outlet cavity below the second interface, the water outlet cavity is rotatably provided with a stirring impeller, and the bottom of the water outlet cavity is provided with a water outlet port.

2. The true boiling point water purifier of claim 1, wherein The water-vapor separation chamber is provided with a flow guide inclined surface below the first interface and inclinedly distributed towards the water outlet cavity, the flow guide inclined surface is provided with at least one flow guide convex strip extending towards one side of the water outlet cavity, and the upper part of the stirring impeller extends out of the upper part of the water outlet cavity.

3. The true boiling point water purifier of claim 2, wherein The water outlet cavity is provided with a hollow overflow pipe vertically distributed, the top end of the overflow pipe is higher than the top end of the flow guide inclined surface, the overflow pipe, the water outlet port and the water outlet cavity are coaxially distributed, and the stirring impeller is rotatably installed on the pipe wall of the overflow pipe.

4. The true boiling point water purifier of claim 3, wherein The top wall of the water-vapor separation chamber is provided with a baffle vertically extending downwards, the baffle is located between the first interface and the second interface, and the bottom end of the baffle is lower than the top end of the overflow pipe.

5. The true boiling point water purifier of claim 1, wherein The inner wall of the water outlet port is provided with a helically distributed drainage convex rib.

6. The true boiling point water purifier of claim 1, wherein The tapered pressure-increasing pipe is a conical pipe body with a gradually decreasing pipe diameter along the flow direction, and the conical angle of the tapered pressure-increasing pipe is 8°-15°.

7. The true boiling point water purifier of claim 1, wherein The inner cavity of the micro-porous boiling chamber is provided with a plurality of micro-porous plates uniformly distributed with pressurizing through holes along the flow direction, and a pressure-reducing cavity is formed between adjacent two micro-porous plates, and the pore diameter of the pressurizing through holes on the micro-porous plate ranges from 0.3mm to 1.2mm.

8. The true boiling point water purifier of claim 7, wherein The pore diameter of the pressurizing through holes on each micro-porous plate gradually decreases along the flow direction, and the space volume of each pressure-reducing cavity gradually increases along the flow direction.

9. The true boiling point water purifier of claim 7, wherein The material of the micro-porous plate is SUS316L, and the surface of the micro-porous plate is provided with a diamond-like carbon layer with a hardness of ≥20GPa, and a chamfer is arranged at the inlet of the pressurizing through hole.

10. The true boiling point water purifier according to any one of claims 1 to 9, characterized in that, The inlet end of the tapered pressure-increasing pipe is connected with an electromagnetic proportional regulating valve for adjusting the opening degree according to the water quality TDS value, the water outlet end of the water purification module is provided with a TDS probe for detecting water hardness, and the electromagnetic proportional regulating valve and the TDS probe are respectively connected with the control device.

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