A descaling steam generator

Abstract

The present invention discloses a descaling steam generator, comprising a main valve core for introducing a water source and heating a water body, a water inlet being arranged at the bottom of the main valve core, and a steam outlet being arranged at the top; wherein the main valve core comprises an outer core and an inner core, the outer core being a hollow structure, the inner core being arranged in the hollow structure of the outer core, and a chamber for water supply and circulation being reserved between the outer core and the inner core; the water body flowing through the chamber is heated by the main valve core, so that the water body is heated and evaporated, and then flows out from the steam outlet; an elastic coil is arranged in the chamber, the elastic coil is arranged around the outer wall of the inner core, and under the volume change of the water flow and the gravity of the elastic coil itself, the elastic coil slides up and down and expands and contracts in the chamber, and scrapes against the inner wall of the outer core and / or the outer wall of the inner core. Thus, the scale on the inner wall of the outer core and / or the outer wall of the inner core can be removed, and at the same time, the flow limiting function can be played to improve the quality of the steam.

Description

Technical Field

[0001] The present invention relates to the technical field of steam electrical appliances, and more particularly to a descaling steam generator. Background Art

[0002] Steam generator is a mechanical device that uses the thermal energy of fuel or other energy to heat water into hot water or steam. Steam generators can be divided into electric steam generators, oil steam generators, gas steam generators, etc. according to fuel classification. Steam generators are mainly suitable for garment factories, dry cleaners, restaurants, steamed bun shops, canteens, restaurants, factories, mines, bean product factories and other places.

[0003] Steam generators can be classified into instant steam generators and boiler steam generators according to their size. Instant steam generators are small devices mainly used in daily life, while boiler steam generators are generally used in industrial production, such as thermal power plants, ships, locomotives, and industrial and mining enterprises. Instant steam generators use direct current steam generation technology, which allows tap water to generate steam instantly after heat exchange, achieving the beneficial effects of instant heating without preheating, safety and convenience.

[0004] With the development of science and technology, instant steam generators are more and more widely used in people's lives, and people's requirements for instant steam generators are getting higher and higher. However, the steam generated by existing instant steam generators has low temperature and low dryness; the thermal energy utilization is insufficient, the heating and steaming efficiency is low, the vaporization effect is not ideal, and it is not convenient to use and cannot meet people's requirements. Therefore, the structure of the existing instant steam generator is in urgent need of improvement.

[0005] On the other hand, after using the existing steam generator for a period of time, the impurities in the water are converted into scale after the water is heated, and the scale adheres to the internal flow channel and steam outlet of the steam generator. In the long run, most of the surface of the heating body is covered with scale, which affects the heat transfer effect and increases the energy consumption of the steam generator. At present, due to the unreasonable structural design of the steam generator, the internal cavity space is small, and the scale easily fills the cavity. The blockage of scale will affect the function of the steam generator, and in serious cases, there may be a risk of explosion. Summary of the invention

[0006] The present invention aims to overcome at least one defect of the above-mentioned prior art and provide a descaling steam generator for solving the scaling problem in the steam generator.

[0007] The technical solution adopted by the present invention is a descaling steam generator, comprising a main valve core for introducing a water source and heating a water body, wherein a water inlet is arranged at the bottom of the main valve core and a steam outlet is arranged at the top; wherein the main valve core comprises an outer core and an inner core, wherein the outer core is a hollow structure, and the inner core is arranged in the hollow structure of the outer core, and a chamber for water circulation is reserved between the outer core and the inner core; the water body flowing through the chamber is heated and evaporated by the main valve core, and then flows out from the steam outlet; an elastic coil is arranged in the chamber, wherein the elastic coil is arranged around the outer wall of the inner core, and under the volume change of the water flow and the gravity of the elastic coil itself, the elastic coil slides up and down and expands and contracts in the chamber, and scrapes against the inner wall of the outer core and / or the outer wall of the inner core.

[0008] In the present technical solution, since the elastic coil has a tensile force, when the water vapor passes through the chamber, the spring is affected by the water vapor and gravity and continuously performs an upward and downward expansion and contraction movement. During the movement, the spring continuously scrapes against the inner wall of the outer core and / or the outer wall of the inner core, thereby removing scale on the inner wall of the outer core and / or the outer wall of the inner core. At the same time, it can also play a role in limiting the flow, so that when the water flow passes through the elastic coil, the heating time is extended, the heating temperature is increased, and the quality of the steam is improved.

[0009] On the other hand, when the steam generator of the present technical solution is working, the water flow in the chamber is at least partially blocked when passing through the elastic coil, and the water flow compresses the elastic coil when rising, so that the volume of the steam outlet becomes smaller. According to the law of conservation of energy, the flow rates of the fluid inlet and the steam outlet remain unchanged, and because the volume of the steam outlet becomes smaller, the pressure of the steam outlet becomes larger, and micro-pressure is generated when the water vapor flows out of the steam outlet, thereby causing the water vapor to be quickly ejected.

[0010] Furthermore, a high-frequency alternating current generating coil is provided on the outer wall of the outer core, and the high-frequency alternating current generating coil is electrically connected to an external power supply mainboard, and generates an alternating electric field to act on the main valve core, so that the main valve core is quickly heated up.

[0011] Furthermore, the chamber includes a plurality of sections of elastic coils, each section of the elastic coils has a different density, so as to achieve sliding and telescopic effects to different degrees.

[0012] Furthermore, the plurality of sections of elastic coils are arranged in sequence in the chamber according to density, wherein the density of the elastic coils increases in sequence in the direction of water flow.

[0013] Furthermore, the chamber includes three sections of elastic coils, which are respectively a first elastic coil, a second elastic coil and a third elastic coil along the direction of water flow, wherein the three sections of elastic coils are arranged around the outer wall of the inner core in the chamber, and the density of the three sections of coils increases successively along the direction of water flow.

[0014] Among them, the three-section elastic coil has the function of extending and retracting up and down. It uses steam energy to provide power to overcome the spring elastic force. When the steam kinetic energy disappears, the spring resets, thereby scraping off the scale adsorbed on the surface of the inner cavity and the outer cavity. When the plunger steam generator is started next time, the steam generated by the internal cavity will bring out the scale, thereby achieving the purpose of removing scale.

[0015] Further, the space of the third elastic coil in the chamber is smaller than the space of the second elastic coil in the chamber, and the space of the second elastic coil in the chamber is smaller than the space of the first elastic coil in the chamber.

[0016] Furthermore, the width of the cavity channel in the second elastic coil is greater than the width of the cavity channel in the first elastic coil / the third elastic coil.

[0017] Furthermore, a buffer space is reserved in the chamber between the second elastic coil and the third elastic coil.

[0018] The steam that is not completely vaporized is further heated and evaporated into saturated steam in the buffer space, thereby improving the quality of the steam.

[0019] Wherein, the second elastic coil and the third elastic coil have opposite spiral directions.

[0020] Among them, an anti-separation device is provided between the three sections of elastic coils to prevent the elastic coils from sliding into other chambers.

[0021] Furthermore, a hollow fluid distribution chamber is provided in the lower half of the inner core, and a fluid distribution port is provided on the bottom side wall of the fluid distribution chamber; the fluid distribution port is connected to the chamber, and the fluid distribution chamber is connected to the water inlet. After the external water enters the fluid distribution chamber from the water inlet, it is sprayed into the chamber from the fluid distribution port and flows out from the chamber to the steam outlet.

[0022] In this technical solution, water flows from the water inlet through the fluid distribution chamber. When the fluid distribution chamber is filled, water is sprayed into the chamber from the fluid distribution port, so that the pressure of the water entering the chamber is greatly enhanced. Among them, 6 to 12 fluid distribution ports are evenly arranged on the bottom side wall of the fluid distribution chamber. The multiple fluid distribution ports decompose a single stream of water into multiple streams of water, and spray the water horizontally into the chamber. Since the space in the chamber is small, the posture of the fluid suddenly changes from horizontal to vertical, and then passes through the chamber longitudinally, achieving the effect of spraying the fluid upward. At the same time, since the water flow is heated in the chamber and its volume expands, it is further subjected to pressure to ensure upward flow.

[0023] On the other hand, the fluid distribution chamber is actually a gravity back suction chamber, which can use the gravity of the water flow to discharge the dirt in the valve core and the chamber. Its main working principle is: in normal operation, the fluid distribution chamber is filled with water; when it is necessary to discharge sewage, the external water source cuts off the water supply to the fluid distribution chamber, and by placing the steam generator vertically, the water in the fluid distribution chamber is directly discharged under the action of gravity. While gravity discharges water, it also changes the pressure of the inner wall chamber of the outer core and the inner core, so that the pressure of the fluid distribution port and the chamber becomes smaller instantly, forming a pressure difference with the outside world, so that the outside world forms a relative back suction force. Under the action of the back suction force, the dirt adhering to the outer core, the inner core and the chamber is discharged to the bottom of the water inlet together with the water flow. And according to the principle of gravity acceleration, as time goes on, the greater the gravity acceleration, the greater the pressure difference formed, and the smaller the pressure in the chamber, so that the sewage mixture is discharged outside the valve core.

[0024] Furthermore, the outer wall of the high-frequency alternating current generating coil is provided with a high-frequency magnetic field line shielding magnetic strip for shielding electromagnetic radiation; the outer wall of the outer core is provided with a generator elastic coil bracket for installing the high-frequency alternating current generating coil.

[0025] Furthermore, a temperature control device is provided on the outer wall of the outer core and near the steam outlet.

[0026] Furthermore, the inner core can be made of high-temperature polytetrafluoroethylene, which has the characteristics of high temperature resistance and extremely low friction coefficient, and has wear resistance and lubricity, which can reduce the possibility of scaling and make the steam smoother.

[0027] Furthermore, the material of the inner core can also be made of magnetic material. The magnet can magnetize and soften water, reduce the formation of scale, improve the safety of drinking water and gas, and produce beneficial elements to the human body.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] This technical solution, by providing an elastic coil, can effectively play the role of flow limiting and descaling. In terms of flow limiting, the chamber provided with a spring will block the flow of part of the fluid relative to the chamber without a spring, thereby playing the role of flow limiting. Since the pressure is strong where the flow rate is low, the setting of the spring increases the pressure of the soda-water mixture, thereby causing the flow rate to flow upward quickly. In terms of descaling, since the spring has a tensile force, during the process of water vapor passing through the chamber, the spring is affected by the water vapor and gravity, and continuously performs up and down telescopic movements. During the movement, it continuously rubs and scrapes against the outer wall of the inner core and / or the inner wall of the outer core, thereby effectively removing the scale in the chamber and ensuring the quality of the water vapor.

[0030] This technical solution mainly utilizes the principle of eddy current, with the outer core as a conductor. The external steam generator mainboard is connected to the high-frequency alternating current generating coil and resonates with the outer core, thereby generating an alternating electric field acting on the outer core, causing the main valve core itself to heat up rapidly, and the fluid flows through the chamber between the outer core and the inner core, thereby achieving the purpose of heating the fluid.

[0031] Since the eddy current phenomenon generates a lot of heat, the water entering the chamber can quickly heat up and quickly produce saturated steam. At the same time, the use of high-frequency electromagnetic heating allows the inner and outer cores to self-heat instead of heat transfer, and the self-heating temperature rises quickly, thereby effectively increasing the steam saturation.

[0032] The inner core of the technical solution is arranged in the hollow structure of the outer core, so that the entire generator is a cavity structure, which can reasonably distribute water resources and ensure the activity of water molecules in the cavity; at the same time, the fluid flow direction of the cavity structure is single, which relaxes the restrictions on the installation method of the generator, so that the installation method of the generator can be installed and allocated according to different needs. On the other hand, since the inner core is arranged in the hollow structure of the outer core as a detachable structure, it is conducive to maintenance and adjustment of parameters, and there is a huge upgrade space. At the same time, due to the small size of the generator, it also has the beneficial effect of being easy to maintain and carry.

[0033] The inner core structure of the present technical solution is streamlined in design, which is more in line with the principles of fluid mechanics and can prevent the generator from generating irresistible danger and gas output due to scale blockage or other reasons.

[0034] The high-frequency electromagnetic heating of this technical solution uses the principle of electromagnetic induction to convert electrical energy into magnetic heat energy, so that the metal container can heat up quickly by itself. Compared with the traditional gas heating technology, it has the advantages of water-electricity separation, rapid heating and energy saving. Compared with resistance wire heating, the electromagnetic steam generator has faster heating efficiency, saves electricity, time and money. The electromagnetic steam generator adopts electromagnetic heating technology. There is an insulator between the wire and the furnace body. It relies on the collision heating of the magnetic field and iron to effectively avoid leakage accidents.

[0035] The technical solution adopts a plunger-type injection of fluid, and the fluid can only move in one direction, so there is no restriction on the installation method of the generator.

[0036] The steam generator of this technical solution has strong power scalability and can operate in any power range between 500W-100KW. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a cross-sectional view of the present invention.

[0038] Figure 2 Schematic diagram of the fluid flow in the main valve core. DETAILED DESCRIPTION

[0039] The drawings of the present invention are only for illustrative purposes and should not be construed as limiting the present invention. In order to better illustrate the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; it is understandable to those skilled in the art that some well-known structures and their descriptions in the drawings may be omitted.

[0040] Example 1

[0041] like Figure 1 and Figure 2 As shown, a descaling steam generator comprises a main valve core for introducing water source and heating water body, a water inlet 1 is arranged at the bottom of the main valve core, and a steam outlet 2 is arranged at the top; wherein, the main valve core comprises an outer core 3 and an inner core 4, the outer core 3 is a hollow structure, the inner core 4 is arranged in the hollow structure of the outer core 3, and a chamber 5 for water circulation is reserved between the outer core 3 and the inner core 4; the main valve core is heated so that the water body flowing through the chamber 5 is evaporated by the heat and then flows out from the steam outlet 2; an elastic coil is arranged in the chamber 5, the elastic coil is arranged around the outer wall of the inner core 4, and under the volume change of the water flow and the gravity of the elastic coil itself, the elastic coil slides up and down and expands and contracts in the chamber 5, and scrapes against the inner wall of the outer core 3 and / or the outer wall of the inner core 4.

[0042] In the present technical solution, since the elastic coil has a tensile force, when the water vapor passes through the chamber 5, the spring is affected by the water vapor and gravity and continuously performs an upward and downward expansion and contraction movement. During the movement, the spring continuously scrapes against the inner wall of the outer core 3 and / or the outer wall of the inner core 4, thereby removing scale on the inner wall of the outer core 3 and / or the outer wall of the inner core 4. At the same time, the spring can also play a role in limiting the flow, thereby extending the heating time and increasing the heating temperature when the water flows through the elastic coil, thereby improving the quality of the steam.

[0043] On the other hand, when the steam generator of the present technical solution is working, the water flow in the chamber 5 is at least partially blocked when passing through the elastic coil, and the water flow compresses the elastic coil when rising, so that the volume of the steam outlet 2 becomes smaller. According to the law of conservation of energy, the flow rates of the fluid inlet and the steam outlet 2 remain unchanged, and since the volume of the steam outlet 2 becomes smaller, the pressure of the steam outlet 2 becomes larger, and micro-pressure is generated when the water vapor flows out of the steam outlet 2, thereby causing the water vapor to be quickly ejected.

[0044] The outer wall of the outer core 3 is provided with a high-frequency alternating current generating coil 6, which is electrically connected to an external power supply mainboard and generates an alternating electric field to act on the main valve core, so that the main valve core is quickly heated up.

[0045] The chamber 5 includes three sections of elastic coils, each section of which has a different density, to achieve different degrees of sliding and telescopic effects. The three sections of elastic coils are sequentially a first elastic coil 53, a second elastic coil 54 and a third elastic coil 55 along the water flow direction, wherein the three sections of elastic coils are arranged around the outer wall of the inner core 4 in the chamber 5, and the density of the three sections of elastic coils increases sequentially along the water flow direction.

[0046] The three sections of elastic coils are arranged in order in the chamber 5 according to their density.

[0047] The space of the third elastic coil 55 in the chamber 5 is smaller than the space of the second elastic coil 54 in the chamber 5 , and the space of the second elastic coil 54 in the chamber 5 is smaller than the space of the first elastic coil 53 in the chamber 5 .

[0048] The channel width of the chamber 5 in the second elastic coil 54 is greater than the channel width of the chamber 5 in the first elastic coil 53 / the third elastic coil 55 .

[0049] A buffer space is reserved in the chamber 5 between the second elastic coil 54 and the third elastic coil 55 .

[0050] The space at the bottom of the first elastic coil 53 is the front chamber. Since the water entering the front chamber is cold water and the temperature generated is less than 90 degrees, scale will not be generated in the front chamber.

[0051] In the top space of the third elastic coil 55 , steam flows through. If there is some scale mixed in the steam, it will be taken out of the generator by the high-speed gas. Furthermore, when the temperature in the chamber drops to the scale crystallization point after the heat energy is lost during shutdown, there is no calcified mixture in the chamber, so scale will not be generated in the top space of the third elastic coil 55 .

[0052] The steam that is not completely vaporized is further heated and evaporated into saturated steam in the buffer space, thereby improving the quality of the steam.

[0053] The second elastic coil 54 and the third elastic coil 55 have opposite spiral directions.

[0054] In this embodiment, the interior of the chamber 5 is divided into a fluid change processing chamber 51 and a steam pressure processing chamber 52 according to the changing state of water flow when passing through, wherein the water flow is quickly heated and evaporated in the fluid change processing chamber 51 to generate primary steam; the steam pressure processing chamber 52 is used to change the flow velocity of the steam when it flows through and further heat the steam, so that the steam generates pressure through the change in flow velocity, so that the outflowing steam is high-temperature pressurized steam.

[0055] In this embodiment, the fluid change processing chamber 51 includes a fluid mutation front chamber 511 and a water state conversion chamber 512 arranged in sequence along the water flow direction. Liquid water is heated in the fluid mutation front chamber 511 and generates primary steam when entering the water state conversion chamber 512. The first elastic coil 53 is arranged in the fluid mutation front chamber 511.

[0056] In the present technical solution, the water flow is quickly heated when entering the fluid mutation front chamber 511, and the heated water flow is converted into a steam-water mixture, causing the volume to continue to increase, thereby causing the steam-water mixture to continue to flow upward. The further it flows upward, the higher the heating temperature is, and when entering the water state conversion chamber 512, primary steam is continuously generated.

[0057] In this embodiment, the steam pressure processing chamber 52 includes a pressure control and flow control chamber 521, a pressure holding chamber 522 and a reverse fluid conversion chamber 523 which are sequentially arranged along the water flow direction, wherein the second elastic coil 54 is arranged in the pressure control and flow control chamber 521, and the third elastic coil 55 is arranged in the reverse fluid conversion chamber 523. When the primary steam flows through the pressure control and flow control chamber 521, it moves upward in a spiral shape through the action of the second elastic coil 54, generating centrifugal force to separate gaseous water and liquid water; when entering the pressure holding chamber 522, the steam is buffered in the pressure holding chamber, thereby continuing to heat up and evaporate into saturated steam; when passing through the reverse fluid conversion chamber 523, the third elastic coil 55 reduces the flow speed of the steam, so that the steam is further heated in the reverse fluid conversion chamber 523, so that the outflowing steam is high-temperature pressurized steam.

[0058] Among them, an anti-separation device is provided between the three sections of elastic coils to prevent the elastic coils from sliding into other chambers.

[0059] Among them, the lower half of the inner core 4 is provided with a hollow fluid distribution chamber 41, and the bottom side wall of the fluid distribution chamber 41 is provided with a fluid distribution port 42; the fluid distribution port 42 is connected with the chamber 5, and the fluid distribution chamber 41 is connected with the water inlet 1. After the external water enters the fluid distribution chamber 41 from the water inlet 1, it is sprayed into the chamber 5 from the fluid distribution port 42 and flows out from the chamber 5 to the steam outlet 2.

[0060] In the present technical solution, water flows from the water inlet 1 through the fluid distribution chamber 41. When the fluid distribution chamber 41 is filled, water is sprayed from the fluid distribution port 42 to the chamber 5, so that the pressure of the water entering the chamber 5 is greatly enhanced. Among them, 6 to 12 fluid distribution ports 42 are evenly arranged on the bottom side wall of the fluid distribution chamber 41. The multiple fluid distribution ports 42 decompose a single stream of water into multiple streams of water, and make the water flow horizontally close to the chamber 5. Since the space of the chamber 5 is small, the posture of the fluid suddenly changes from horizontal to vertical, and then passes through the chamber 5 vertically, achieving the effect of spraying the fluid upward. At the same time, since the water flow is heated in the chamber 5 and the volume expands, it is further subjected to pressure to ensure upward flow.

[0061] On the other hand, the fluid distribution chamber 41 is actually a gravity back suction chamber, which can use the gravity of the water flow to discharge the dirt in the valve core and chamber 5. Its main working principle is: in normal operation, the fluid distribution chamber 41 is filled with water; when it is necessary to discharge sewage, the external water source cuts off the water supply to the fluid distribution chamber 41, and by placing the steam generator vertically, the water in the fluid distribution chamber 41 is directly discharged under the action of gravity. While gravity discharges water, it also changes the pressure of the inner wall chamber 5 of the outer core 3 and the inner core 4, so that the pressure of the fluid distribution port 42 and the chamber 5 instantly decreases, forming a pressure difference with the outside world, so that the outside world forms a relative back suction force. Under the action of the back suction force, the dirt adhered to the outer core 3, the inner core 4 and the chamber 5 is discharged to the bottom of the water inlet 1 along with the water flow. And according to the principle of gravity acceleration, as time goes on, the greater the gravity acceleration, the greater the pressure difference formed, and the smaller the pressure in the chamber, so that the sewage mixture is discharged out of the valve core.

[0062] In this embodiment, a pressure control terminal 7 is provided on the top of the inner core 4, and the edge of the pressure control terminal 7 protrudes from the space where the chamber 5 is located, so that the space where the chamber 5 is located is reduced, and the reduced chamber 5 is connected to the steam outlet.

[0063] In the present technical solution, the setting of the pressure control terminal 7 is mainly to reduce the space when the steam flows out of the chamber 5, so as to reduce the cross-sectional area when the steam flows out of the chamber 5. According to the Bernoulli principle, the steam flows out quickly from the reduced chamber 5, the pressure at the reduced chamber 5 is small, and the pressure below the reduced chamber 5 is large, so that the steam is ejected upward quickly.

[0064] The outer wall of the high-frequency alternating current generating coil 6 is provided with a high-frequency magnetic field line shielding magnetic strip 8 for shielding electromagnetic radiation; the outer wall of the outer core 3 is provided with a generator elastic coil bracket 9 for installing the high-frequency alternating current generating coil 6.

[0065] Wherein, a temperature control device 10 is provided on the outer wall of the outer core 3 and near the steam outlet 2 .

[0066] The inner core 4 is made of high-temperature polytetrafluoroethylene, which has the characteristics of high temperature resistance and extremely low friction coefficient, and has wear resistance and lubricity, which can reduce the possibility of scaling and make the steam smoother.

[0067] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the technical solution of the present invention, and are not intended to limit the specific implementation methods of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the claims of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A descaling steam generator, characterized in that: It comprises a main valve core for introducing water source and heating water body, the bottom of the main valve core is provided with a water inlet, and the top is provided with a steam outlet; wherein, the main valve core comprises an outer core and an inner core, the outer core is a hollow structure, the inner core is arranged in the hollow structure of the outer core, and a chamber for water circulation is reserved between the outer core and the inner core; the main valve core is heated so that the water body flowing through the chamber is evaporated by heat and then flows out from the steam outlet; an elastic coil is arranged in the chamber, the elastic coil is arranged around the outer wall of the inner core, and under the volume change of the water flow and the gravity of the elastic coil itself, the elastic coil slides up and down and expands and contracts in the chamber, and scrapes against the inner wall of the outer core and / or the outer wall of the inner core; The chamber comprises a plurality of sections of elastic coils, each section of the elastic coil has a different density, and achieves sliding and telescopic effects to different degrees; the plurality of sections of elastic coils are arranged in sequence according to the size of the density in the chamber, wherein the density of the elastic coil increases in sequence in the direction of the water flow; the chamber comprises three sections of elastic coils, wherein the three sections of elastic coils are a first elastic coil, a second elastic coil and a third elastic coil in sequence along the direction of the water flow, wherein the three sections of elastic coils are arranged around the outer wall of the inner core in the chamber, and the density of the three sections of elastic coils increases in sequence along the direction of the water flow; the space of the third elastic coil in the chamber is smaller than the space of the second elastic coil in the chamber, and the space of the second elastic coil in the chamber is smaller than the space of the first elastic coil in the chamber; the chamber channel width in the second elastic coil is larger than the chamber channel width in the first elastic coil / the third elastic coil.

2. A descaling steam generator according to claim 1, characterized in that: The outer wall of the outer core is provided with a high-frequency alternating current generating coil, which is electrically connected to an external power supply mainboard and generates an alternating electric field to act on the main valve core, so that the main valve core is quickly heated up.

3. A descaling steam generator according to claim 1, characterized in that: A buffer space is reserved in the chamber between the second elastic coil and the third elastic coil.

4. A descaling steam generator according to claim 1, characterized in that: A hollow fluid distribution chamber is provided in the lower half of the inner core, and a fluid distribution port is provided on the bottom side wall of the fluid distribution chamber; the fluid distribution port is connected to the chamber, and the fluid distribution chamber is connected to the water inlet. After the external water enters the fluid distribution chamber from the water inlet, it is sprayed into the chamber from the fluid distribution port and flows out from the chamber to the steam outlet.

5. A descaling steam generator according to claim 2, characterized in that: The outer wall of the high-frequency alternating current generating coil is provided with a high-frequency magnetic field line shielding magnetic strip for shielding electromagnetic radiation; the outer wall of the outer core is provided with a generator elastic coil bracket for installing the high-frequency alternating current generating coil.

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