CN211575075U - Quartz glass tube circulating water electric heating steam generator - Google Patents

Abstract

A quartz glass tube circulating water electric heating steam generator belongs to the technical field of electric heating devices. The device comprises an external heating tank, wherein a screw sleeve abdicating hole is arranged in the center of the external heating tank, a boiler connecting device is arranged on the outer wall of the lower end of the external heating tank, and the upper end of the external heating tank is positioned in a boiler cavity; the water heating vaporization pipe is positioned in the external heating tank cavity, the water heating vaporization pipe cavity is communicated from the upper end to the lower end of the water heating vaporization pipe, the water heating vaporization pipe is a quartz glass pipe, an electric heating wire is wound on the outer wall of the water heating vaporization pipe along the height direction of the water heating vaporization pipe, the end part sealing and connecting mechanism of the water heating vaporization pipe comprises an upper sealing device, a lower sealing device and a pair of screw sleeve connecting rods, the upper sealing device is in inserted and embedded fit with the upper opening of the water heating vaporization pipe cavity, the lower sealing device is in inserted and embedded fit with the lower opening of the water heating vaporization pipe cavity, and the pair of screw sleeve connecting rods are positioned in the water heating vaporization pipe cavity; and the power supply connecting mechanism is connected with the upper end and the lower end of the electric heating wire. The vaporization efficiency is improved; the structure is simplified, and the manufacture is convenient; the use is flexible; the safety is guaranteed.

Description

Quartz glass tube circulating water electric heating steam generator

Technical Field

The utility model belongs to the technical field of electric heater unit, concretely relates to quartz glass manages circulation water electric heating steam generator.

Background

Hot water or steam is used in such applications as vehicle washing, garment ironing, fabric finishing and sizing, adhesive application, floor heating, dish sterilization, sauna, winter steam heating, and the like. The electric heating steam generator is a core component of a boiler and has the function of heating water into hot water and further forming the hot water into steam, and specifically, the boiler continuously takes away heat absorbed by a heating surface by using the circulating flow of the water in the running process so as to heat and gasify the water into the steam.

The CN209399334U recommends that the 'anhydrous boiler steam generator' makes up the defects of the 'electric steam boiler' introduced in CN208058802U, and the structure of the CN209399334U is as follows: "set up metal water pipe and heating pipe in the casing, still have a metal inner bag of no water in the casing, the metal water pipe is the heliciform and twines on the periphery wall of metal inner bag, the metal heating pipe is the heliciform and twines on the periphery wall of metal inner bag equally, and both crisscross distributions form the clearance, the clearance intussuseption is full of, the one end of metal water pipe stretches out the outer water inlet that forms of casing, the other end stretches into the metal inner bag and forms first gas outlet, the both ends of metal heating pipe all stretch out outside the casing, set up at the top of casing with the communicating second gas outlet of metal inner bag (can specifically see the specification 0006 section and the 0024 section of this patent)". This patent suffers from at least the following disadvantages: firstly, because the metal water pipe and the metal heating pipe are wound on the outer wall of the metal inner container at intervals in a spiral state, the metal heating pipe is electrified to generate heat to heat water in the metal water pipe and generate steam to be led out from the first air outlet to the second air outlet, the heating vaporization efficiency is relatively low; secondly, the metal water pipe and the metal heating pipe are alternately wound outside the metal heating pipe at intervals in a spiral state, so that the structure is complex and the processing is relatively troublesome; thirdly, since this patent does not give any technical connotation of actually being a dry steam boiler, the skilled person is not sufficient to derive therefrom a relevant teaching of being put to practical use, i.e. it is difficult or even impossible to combine the steam generator given in this patent with a boiler (actually an "outer tank", the following). In view of the foregoing, there is a need for reasonable improvements, and the solutions described below are made in this context.

Disclosure of Invention

The task of the utility model is to provide a help improving the efficiency with water heating and vaporization and can save electric energy consumption, be favorable to showing and simplify the structure and can make things convenient for, be of value to combine together with the boiler and can become true electric heating steam generator, have the quartz glass tube circulation water electric heating steam generator who is convenient for guarantee electrical safety and can avoid the electric leakage and cause the accident.

The utility model aims to provide a quartz glass tube circulating water electric heating steam generator, which comprises an external heating tank, wherein a screw sleeve abdicating hole is arranged at the central position of the top wall of the external heating tank, a boiler connecting device is formed on the outer wall of the lower end of the external heating tank, and the upper end of the external heating tank is positioned in the boiler cavity of the boiler in a use state; a water heating vaporization pipe, an electric heating wire and a sealing connection mechanism at the end part of the water heating vaporization pipe, wherein the water heating vaporization pipe is positioned in the cavity of the external heating tank, the water heating vaporization tube cavity of the water heating vaporization tube is communicated from the upper end to the lower end of the water heating vaporization tube in the height direction, the water heating vaporization tube is a quartz glass tube, an electric heating wire is wound on the outer wall of the water heating vaporization tube along the height direction of the water heating vaporization tube, a sealing connection mechanism at the end part of the water heating vaporization tube comprises an upper sealing device, a lower sealing device and a pair of screw sleeve connecting rods, the upper sealing device is inserted and embedded with an upper cavity opening of the water heating vaporization tube cavity at a position corresponding to the upper end of the water heating vaporization tube, the lower sealing device is inserted and embedded with a lower cavity opening of the water heating vaporization tube cavity at a position corresponding to the lower end of the water heating vaporization tube, and the pair of screw sleeve connecting rods are positioned in the water heating vaporization tube cavity and connected between the upper sealing device and the lower sealing device; and the power supply connecting mechanism is electrically connected with the upper end and the lower end of the electric heating wire and is electrically connected with an external power supply circuit after being led out to the lower part of the cavity of the outer heating tank.

In a specific embodiment of the present invention, the boiler connecting device includes an external heating tank external thread and a wrench operation fitting head, the external heating tank external thread directly constitutes on the outer wall of the lower end of the external heating tank, and the wrench operation fitting head also directly constitutes on the outer wall of the external heating tank in a region corresponding to the middle part of the external heating tank external thread.

In another specific embodiment of the present invention, the upper sealing device comprises an upper sealing sleeve of the water heating vaporization tube, an upper sealing ring, an upper screw sleeve and an upper nut, the upper sealing sleeve of the water heating vaporization tube is inserted into the upper opening of the water heating vaporization tube cavity at a position corresponding to the upper end of the water heating vaporization tube, and an upper sealing sleeve flange is formed on the upper portion of the upper sealing sleeve of the water heating vaporization tube, the downward side of the upper sealing sleeve flange is in sealing fit with the upper end face of the water heating vaporization tube, the upper sealing ring is superposed on the upward side of the upper sealing sleeve flange, the lower end of the upper screw sleeve is inserted into the water heating vaporization tube cavity, and the upper end of the upper sealing sleeve penetrates through the upper sealing sleeve of the water heating vaporization tube and the upper sealing ring in sequence to extend to the upper side of the water heating vaporization tube and into the screw sleeve yielding hole, the upper screw sleeve cavity of the upper screw sleeve is formed as, the upper nut is matched with an upper thread sleeve external thread formed on the outer wall of the upper thread sleeve at a position corresponding to the upper part of the upper sealing ring; the lower sealing device comprises a lower sealing sleeve of the water heating vaporization pipe, a lower sealing ring, a lower screw sleeve and a lower nut, the lower sealing sleeve of the water heating vaporization pipe is inserted and embedded in the position corresponding to the lower end of the water heating vaporization pipe and is matched with the lower cavity opening of the water heating vaporization pipe cavity, and a lower sealing sleeve flange is formed at the lower part of the lower sealing sleeve of the water heating vaporization pipe, the downward side of the lower sealing sleeve flange is in sealing fit with the lower end face of the water heating vaporization pipe, the lower sealing ring is superposed on the downward side of the lower sealing sleeve flange, the upper end of the lower screw sleeve extends into the water heating vaporization pipe cavity, the lower part of the water heating vaporization pipe sequentially passes through the lower sealing sleeve and the lower sealing ring of the water heating vaporization pipe to extend to the lower part of the water heating vaporization pipe, a cavity opening at the lower part of a lower screw sleeve cavity of the lower screw sleeve is a water inlet, and a lower nut is in threaded fit with an external screw sleeve thread formed on the outer wall of the lower screw sleeve at a position corresponding to the lower part of the lower sealing ring; the pair of the screw sleeve connecting rods are connected between the opposite ends of the upper screw sleeve and the lower screw sleeve, and the pair of the screw sleeve connecting rods are in a face-to-face position relationship with each other.

In yet another embodiment of the present invention, the power connection mechanism comprises an upper conductive clamping ring, a lower conductive clamping ring, an upper clamping ring power connection line, a lower clamping ring power connection line and an upper clamping ring power connection line protection sleeve, the upper conductive clamping ring is clamped at the upper end of the water heating vaporization tube and is electrically connected with the upper end of the electric heating wire wound on the outer wall of the water heating vaporization tube, the lower conductive clamping ring is clamped at the lower end of the water heating vaporization tube and is electrically connected with the lower end of the electric heating wire, the upper end of the upper clamping ring power connection line is fixed with the upper conductive clamping ring by an upper clamping ring power connection line screw, the lower end of the upper clamping ring power connection line extends downwards out of the cavity of the external heating tank and is electrically connected with the external power circuit in a use state, the upper end of the lower clamping ring power connection line is fixed with the lower conductive clamping ring by a lower clamping ring power connection line screw, the lower end of the lower clamping ring power supply connecting wire also extends downwards to the outside of the outer heating tank cavity and is electrically connected with an external power supply circuit in a use state, and the upper clamping ring power supply connecting wire protective sleeve is sleeved outside the upper clamping ring power supply connecting wire in the outer heating tank cavity.

In another specific embodiment of the present invention, the wall body of the upper cavity portion and the lower cavity portion of the water heating vaporization tube cavity and the positions contacted with the upper sealing sleeve of the water heating vaporization tube and the lower sealing sleeve of the water heating vaporization tube are respectively coated with a high temperature resistant sealing adhesive layer.

In yet another specific embodiment of the present invention, the upper nut and the lower nut are outer hexagonal nuts.

In a more specific embodiment of the present invention, the electric heating wire is wound around the outer wall of the water heating vaporization pipe in a spiral state along the height direction of the water heating vaporization pipe.

In yet another specific embodiment of the present invention, the gap between the upper and lower adjacent coils of the electric heating wire wound in a spiral state on the outer wall of the water heating vaporization pipe is formed as the coil gap of the electric heating wire.

In a still more specific embodiment of the present invention, the gap between the spiral coils of the electric heating wire is filled with a high temperature resistant insulating ceramic filler.

In yet another specific embodiment of the present invention, the protective sleeve of the power connection line of the upper clamping ring is a ceramic sleeve.

The technical scheme provided by the utility model the technical effect lie in: because the electric heating wire is only required to be wound outside the water heating vaporization pipe positioned in the cavity of the external heating tank, the water is directly heated and vaporized by the electric heating wire until being led out of the external heating tank, the vaporization efficiency can be improved, and the electric energy consumption can be saved; because the boiler connecting device is formed in advance at the lower part of the external heating tank and the sealing and connecting mechanism at the end part of the water heating vaporization pipe is adopted, and because the metal water pipe and the metal heating pipe do not need to be respectively wound and covered outside the water heating vaporization pipe like the prior art, the structure is obviously simplified, and the boiler connecting device can be conveniently manufactured and can be quickly matched and connected with the boiler; the combination of the boiler connecting device of the external heating tank and the boiler can be put into practical use, so that the flexible use requirements of occasions such as fabric after-finishing, garment ironing, fabric dyeing and finishing and sizing, adhesive use, floor heating, tableware disinfection, sauna, winter steam heating, floor cleaning and the like can be met; because the power supply connecting mechanism is shielded and protected by the external heating tank, the safety is ensured, and electric shock leakage accidents are avoided.

Drawings

Fig. 1 is a structural diagram of an embodiment of the present invention.

Fig. 2 is a detailed structure diagram of the sealing and connecting mechanism at the end of the water heating and vaporizing tube shown in fig. 1, which is matched with the water heating and vaporizing tube.

Fig. 3 is a cross-sectional view of fig. 2.

Fig. 4 is a schematic view of the structure of fig. 1 installed in a boiler according to the present invention.

Detailed Description

In order to make the technical essence and advantages of the present invention more clear, the applicant below describes in detail the embodiments, but the description of the embodiments is not a limitation of the present invention, and any equivalent changes made according to the inventive concept, which are only formal and not essential, should be considered as the technical scope of the present invention.

In the following description, all the concepts related to the directionality or the directionality of the upper and the lower are based on the position state of fig. 1, and therefore, the concepts cannot be understood as being particularly limited to the technical solution provided by the present invention.

Referring to fig. 1 in conjunction with fig. 2 to 4, there is shown an external heating tank 1, a screw sleeve abdicating hole 11 is opened at the central position of the top wall of the external heating tank 1, a boiler connecting device 12 is formed on the outer wall of the lower end of the external heating tank 1, and the upper end of the external heating tank 1 is located in the boiler cavity 61 of the boiler 6 which is substantially an external tank body, i.e. a steam tank (the same applies hereinafter) shown in fig. 4 in the use state; a water heating vaporization tube 2, an electric heating wire 3 and a water heating vaporization tube end sealing connection mechanism 4 are shown, the water heating vaporization tube 2 is positioned in an outer heating tank cavity 13 of an outer heating tank 1, the water heating vaporization tube cavity 21 of the water heating vaporization tube 2 is penetrated from the upper end to the lower end of the water heating vaporization tube 2 in the height direction, the water heating vaporization tube 2 is a quartz glass tube, more specifically, a corrosion-resistant and high-temperature-resistant quartz glass tube, the electric heating wire 3 is wound on the outer wall of the water heating vaporization tube 2 along the height direction of the water heating vaporization tube 2, the water heating vaporization tube end sealing connection mechanism 4 comprises an upper sealing device 41, a lower sealing device 42 and a pair of threaded sleeve connection rods 43, the upper sealing device 41 is inserted and matched with the upper cavity of the water heating vaporization tube cavity 21 at the position corresponding to the upper end of the water heating vaporization tube 2, the lower sealing device 42 is inserted and matched with the lower cavity of the water heating vaporization tube cavity 21 at the position corresponding to the lower end of the water heating vaporization tube 2 A pair of threaded sleeve connecting rods 43 are positioned in the water heating vaporization tube cavity 21 and connected between the upper sealing device 41 and the lower sealing device 42 in a matching way of inserting and embedding; a power connection 5 is shown, which power connection 5 is electrically connected to the upper and lower ends of the aforementioned electric heating wire 3 and to an external power circuit after being led out below the aforementioned outer heating tank chamber 13.

As shown in fig. 1, the boiler connection device 12 includes an external heating tank external thread 121 formed directly on the outer wall of the lower end of the external heating tank 1, and a wrench operation engaging head 122 also formed directly on the outer wall of the external heating tank 1 in a region corresponding to the middle of the external heating tank external thread 121.

Referring to fig. 2 to 3 in combination with fig. 1, the aforementioned upper sealing device 41 includes an upper sealing sleeve 411 of the water heating vaporization pipe, an upper sealing ring 412, an upper screw sleeve 413 and an upper nut 414, the upper sealing sleeve 411 of the water heating vaporization pipe is inserted into the upper opening of the aforementioned water heating vaporization pipe 21 at a position corresponding to the upper end of the aforementioned water heating vaporization pipe 2, and an upper sealing sleeve flange 4111 is formed on the upper portion of the upper sealing sleeve 411 of the water heating vaporization pipe, the downward side of the upper sealing sleeve flange 4111 is in sealing fit with the upper end face of the water heating vaporization pipe 2, the upper sealing ring 412 is stacked on the upward side of the upper sealing sleeve flange 4111, the lower end of the upper screw sleeve 413 is inserted into the water heating vaporization pipe 21, and the upper end of the upper screw sleeve extends upward to above the water heating vaporization pipe 2 and into the aforementioned screw sleeve relief hole 11 (shown in fig. 1) through the upper sealing sleeve 411 and the upper sealing ring 412 of the water heating vaporization, an upper nut chamber 4131 of the upper nut 413 is configured as a hot water vapor outlet 41311, and the upper nut 414 is screw-engaged with an upper nut outer 4132 formed on an outer wall of the upper nut 413 at a position corresponding to an upper side of the upper seal ring 412; the lower sealing device 42 comprises a lower sealing sleeve 421 of the water heating vaporization pipe, a lower sealing ring 422, a lower thread insert 423 and a lower nut 424, the lower sealing sleeve 421 of the water heating vaporization pipe is inserted and matched with the lower cavity opening of the water heating vaporization pipe 21 at a position corresponding to the lower end of the water heating vaporization pipe 2, a lower sealing sleeve flange 4211 is formed at the lower part of the lower sealing sleeve 421 of the water heating vaporization pipe, the downward side of the lower sealing sleeve flange 4211 is in sealing fit with the lower end face of the water heating vaporization pipe 2, the lower sealing ring 422 is superposed at the downward side of the lower sealing sleeve flange 4211, the upper end of the lower thread insert 423 is inserted into the water heating vaporization pipe 21, the lower part of the lower sealing sleeve 42421 penetrates through the lower sealing sleeve of the water heating vaporization pipe and the lower sealing ring 422 downwards in sequence and extends to the lower part of the water heating vaporization pipe 2, the opening at the lower thread insert 4231 of the lower thread insert, the lower nut 424 is screw-engaged with a lower thread insert external thread 4232 formed on the outer wall of the lower thread insert 423 at a position corresponding to the lower side of the lower seal ring 422; the pair of screw coupling rods 43 are coupled between the opposite ends of the upper screw 413 and the lower screw 423 such that the pair of screw coupling rods 43 face each other.

Referring to fig. 1 in combination with fig. 2 to 3, the aforementioned power connection mechanism 5 includes an upper conductive clamping ring 51, a lower conductive clamping ring 52, an upper clamping ring power connection line 53, a lower clamping ring power connection line 54 and an upper clamping ring power connection line protection sleeve 55, the upper conductive clamping ring 51 is clamped at the upper end of the aforementioned water heating vaporization tube 2 and is electrically connected with the upper end of the aforementioned electric heating wire 3 wound on the outer wall of the water heating vaporization tube 2, the lower conductive clamping ring 52 is clamped at the lower end of the aforementioned water heating vaporization tube 2 and is electrically connected with the lower end of the electric heating wire 3, the upper end of the upper clamping ring power connection line 53 is fixed with the upper conductive clamping ring 51 by an upper clamping ring power connection line screw 531, the lower end of the upper clamping ring power connection line 53 extends downward to the outside of the aforementioned outer heating tank cavity 13 and is electrically connected with the external power circuit in a use state, the upper end of the lower clamping ring power connection line 54 is fixed with the lower conductive clamping ring 52 by a lower clamping ring power connection line 541, while the lower end of the lower grip ring power connection line 54 also extends downwardly outside the outer heating vessel cavity 13 and is electrically connected to the external power circuit in use, the upper grip ring power connection line protection sleeve 55 is fitted outside the aforementioned upper grip ring power connection line 53 inside the outer heating vessel cavity 13.

As shown in fig. 3, a high temperature-resistant sealant layer 22 is preferably coated on the wall body of the upper and lower openings of the water heating vaporization tube 21 at positions contacting with the upper and lower sealing sleeves 411 and 421, respectively.

In the present embodiment, the upper nut 414 and the lower nut 424 are outer hexagonal nuts; the electric heating wire 3 is wound around the outer wall of the water heating and vaporizing tube 2 in a spiral state along the height direction of the water heating and vaporizing tube 2.

The gap between the upper and lower adjacent coils of the electric heating wire 3 wound in a spiral state around the outer wall of the water heating vaporization pipe 2 is defined as an electric heating wire coil gap 31. High-temperature resistant insulating ceramic filler is filled in the gap 31 of the spiral coil of the electric heating wire; the protective sleeve 55 for the power connection line of the upper clamping ring is a ceramic sleeve.

Referring to fig. 4 in conjunction with fig. 1, fig. 4 shows the boiler 6 which is substantially an outer tank, the boiler inlet pipe 62 communicating with the boiler chamber 61 is connected to the upper side of the boiler 6, the inlet control valve 621 is connected to the boiler inlet pipe 62, a water level sensor 63 electrically connected to the electric controller is installed on the top of the boiler 6, the lower liquid level probe 631 and the upper liquid level probe 632 of the water level sensor 63 extend into the boiler chamber 61, when the water level in the boiler chamber 61 reaches a level that can be detected by the upper liquid level probe 632, the electric controller is signaled by the water level sensor 63 to close the inlet control valve 621, and the boiler inlet pipe 62 stops the water supply into the boiler chamber 61. Conversely, when the water level in the boiler chamber 61 drops to a level that is not sufficiently detected by the lower level probe 631, water is supplied from the boiler inlet pipe 62 to the boiler chamber 61 in the reverse manner as described above. Also shown in fig. 4 is the water line 7 (also referred to as the "liquid line") within the boiler chamber 61.

A venting safety valve 64 is also arranged at the top of the boiler 6, when the steam pressure in the boiler cavity 61 reaches a set value, the venting safety valve 64 is automatically opened, otherwise, the same is carried out. A steam outlet port 65 is also provided at the top of the boiler 6 and a steam outlet control valve 651 is provided at the steam outlet port 65.

The utility model discloses an outer heating tank external screw thread 121 of the boiler connecting device 12's of aforementioned external heating tank 1 structural system and the ring flange internal thread 661 of the boiler ring flange 66 of the bottom central point of boiler 6 connect and join in marriage and be provided with a sealing washer 1221 between aforementioned wrench operation cooperation head 122 and boiler ring flange 66, the lower extreme and the water source tube coupling of the lower swivel nut 423 of picture presentation, aforementioned boiler inlet tube 62 is the same example.

When the electric heating wire 3 is operated in the power-on state, the water flowing through the water heating vaporization pipe 2 is heated and vaporized by the electric heating wire 3, and the external heating tank 1 is heated in a heat radiation manner, so that the high-temperature water and/or steam from the water heating vaporization pipe 2 enters the upper threaded sleeve cavity 4131 from the upper opening of the water heating vaporization pipe cavity 21 of the water heating vaporization pipe 2, is led to the boiler cavity 61 through the hot water steam outlet 41311 of the upper threaded sleeve cavity 4131, heats and vaporizes the water in the boiler cavity 61 by the external heating tank 1, and is led out for use through the steam outlet 65. In the above process, water is supplied to the water heating vaporization pipe 2 from the lower thread insert cavity 4231 of the lower thread insert 423 connected to the water source pipeline, the water in the water inlet heating vaporization pipe cavity 21 is vaporized by the heating of the electric heating wire 3 and is led out from the hot water vapor outlet 41311 of the upper thread insert cavity 413, the water in the boiler cavity 51 introduced from the boiler water inlet pipe 62 is heated and vaporized, and is led out for use through the vapor outlet 65.

The applicant needs to state that: if an external heating tank flange is formed on the outer wall of the bottom of the external heating tank 1, a plurality of structures such as two, three or four are integrated on an additional screw sleeve fixing disk by the structures shown in fig. 2 and 3, and the screw sleeve fixing disk is fixed with the external heating tank flange, so that the number of the water heating vaporization pipe 2, the electric heating wire 3, the water heating vaporization pipe end sealing connection mechanism 4 and the power supply connection mechanism 5 is increased adaptively as required, it should be considered as the technical scope of the present invention.

The applicant also needs to state that: the arrangement of the present invention shown in figure 2 can be applied to tankless water heaters, domestic tankless hot water faucets, automotive heaters, etc. if the external heating tank 1 and boiler 6 are removed.

To sum up, the technical solution provided by the present invention remedies the defects in the prior art, successfully completes the invention task, and faithfully embodies the technical effects mentioned in the above technical effect column by the applicant.

Claims (10)

1. A quartz glass tube circulating water electric heating steam generator is characterized by comprising an external heating tank (1), wherein a threaded sleeve abdicating hole (11) is formed in the center of the top wall of the external heating tank (1), a boiler connecting device (12) is formed on the outer wall of the lower end of the external heating tank (1), and the upper end of the external heating tank (1) is positioned in a boiler cavity (61) of a boiler (6) in a use state; a water heating vaporization pipe (2), an electric heating wire (3) and a water heating vaporization pipe end sealing connection mechanism (4), the water heating vaporization pipe (2) is positioned in an outer heating tank cavity (13) of the outer heating tank (1), the water heating vaporization pipe cavity (21) of the water heating vaporization pipe (2) penetrates from the upper end to the lower end of the water heating vaporization pipe (2) in the height direction, the water heating vaporization pipe (2) is a quartz glass pipe, the electric heating wire (3) is wound on the outer wall of the water heating vaporization pipe (2) along the height direction of the water heating vaporization pipe (2), the water heating vaporization pipe end sealing connection mechanism (4) comprises an upper sealing device (41), a lower sealing device (42) and a pair of screw sleeve connection rods (43), the upper sealing device (41) is embedded and matched with the upper cavity of the water heating vaporization pipe cavity (21) at the position corresponding to the upper end of the water heating vaporization pipe (2), the lower sealing device (42) is inserted and matched with the lower cavity of the water heating and vaporizing tube cavity (21) at a position corresponding to the lower end of the water heating and vaporizing tube (2), and a pair of threaded sleeve connecting rods (43) are positioned in the water heating and vaporizing tube cavity (21) and connected between the upper sealing device (41) and the lower sealing device (42); and the power supply connecting mechanism (5) is electrically connected with the upper end and the lower end of the electric heating wire (3) and is electrically connected with an external power supply circuit after being led out to the lower part of the outer heating tank cavity (13).

2. A quartz glass tube circulating water electric heating steam generator according to claim 1, characterized in that the boiler connection means (12) comprises an outer heating vessel outer thread (121) and a wrench operation fitting head (122), the outer heating vessel outer thread (121) being formed directly on the outer wall of the lower end of the outer heating vessel (1), the wrench operation fitting head (122) being formed also directly on the outer wall of the outer heating vessel (1) in a region corresponding to the middle of the outer heating vessel outer thread (121).

3. A quartz glass tube circulating water electric heating steam generator according to claim 1, characterized in that the upper sealing device (41) comprises a water heating vaporization tube upper sealing sleeve (411), an upper sealing ring (412), an upper screw sleeve (413) and an upper nut (414), the water heating vaporization tube upper sealing sleeve (411) is inserted and embedded with the upper cavity of the water heating vaporization tube cavity (21) at a position corresponding to the upper end of the water heating vaporization tube (2), an upper sealing sleeve flange (4111) is formed on the upper part of the water heating vaporization tube upper sealing sleeve (411), the downward side of the upper sealing sleeve flange (4111) is in sealing fit with the upper end face of the water heating vaporization tube (2), the upper sealing ring (412) is superposed on the upward side of the upper sealing sleeve flange (4111), the lower end of the upper screw sleeve (413) is inserted into the water heating vaporization tube cavity (21), the upper end of the upper nut (414) penetrates through an upper seal sleeve (411) and an upper seal ring (412) of the water heating vaporization pipe in sequence, extends to the upper part of the water heating vaporization pipe (2) and extends into the screw sleeve abdicating hole (11), an upper screw sleeve cavity (4131) of the upper screw sleeve (413) is formed into a hot water steam outlet (41311), and the upper nut (414) is in threaded fit with an upper screw sleeve outer (4132) formed on the outer wall of the upper screw sleeve (413) at a position corresponding to the upper part of the upper seal ring (412); the lower sealing device (42) comprises a lower sealing sleeve (421) of the water heating vaporization pipe, a lower sealing ring (422), a lower threaded sleeve (423) and a lower nut (424), the lower sealing sleeve (421) of the water heating vaporization pipe is inserted and matched with a lower cavity opening of the water heating vaporization pipe cavity (21) at a position corresponding to the lower end of the water heating vaporization pipe (2), a lower sealing sleeve flange (4211) is formed at the lower part of the lower sealing sleeve (421) of the water heating vaporization pipe, one downward side of the lower sealing sleeve flange (4211) is in sealing fit with the lower end face of the water heating vaporization pipe (2), the lower sealing ring (422) is superposed on the downward side of the lower sealing sleeve flange (4211), the upper end of the lower threaded sleeve (423) is inserted into the water heating vaporization pipe cavity (21), and the lower part of the lower sealing sleeve (421) of the water heating vaporization pipe and the lower sealing ring (422) sequentially penetrates through the lower sealing sleeve (421) of the water heating vaporization pipe and the, the cavity opening at the lower part of a lower screw sleeve cavity (4231) of the lower screw sleeve (423) is formed into a water inlet (42311), and a lower nut (424) is in threaded fit with a lower screw sleeve external thread (4232) formed on the outer wall of the lower screw sleeve (423) at a position corresponding to the lower part of the lower sealing ring (422); the pair of screw sleeve connecting rods (43) are connected between the opposite ends of the upper screw sleeve (413) and the lower screw sleeve (423), and the pair of screw sleeve connecting rods (43) are in a face-to-face positional relationship with each other.

4. A quartz glass tube circulating water electric heating steam generator according to claim 1, characterized in that the power supply connection mechanism (5) comprises an electrically conductive upper clamping ring (51), an electrically conductive lower clamping ring (52), an upper clamping ring power connection line (53), a lower clamping ring power connection line (54) and an upper clamping ring power connection line protection sleeve (55), the electrically conductive upper clamping ring (51) is clamped at the upper end of the water heating vaporizing tube (2) and is electrically connected with the upper end of the electric heating wire (3) wound on the outer wall of the water heating vaporizing tube (2), the electrically conductive lower clamping ring (52) is clamped at the lower end of the water heating vaporizing tube (2) and is electrically connected with the lower end of the electric heating wire (3), the upper end of the upper clamping ring power connection line (53) is fixed with the electrically conductive upper clamping ring (51) by an upper clamping ring power connection line (531), and the lower end of the upper clamping ring power connection line (53) extends downward out of the outer heating pot cavity (13) and is in use The upper end of the lower clamping ring power connecting wire (54) is fixed with the conductive lower clamping ring (52) through a lower clamping ring power connecting wire screw (541), the lower end of the lower clamping ring power connecting wire (54) also extends downwards to the outside of the outer heating tank cavity (13) and is electrically connected with the external power circuit in a use state, and the upper clamping ring power connecting wire protective sleeve (55) is sleeved outside the upper clamping ring power connecting wire (53) in the outer heating tank cavity (13).

5. The quartz glass tube circulating water electric heating steam generator of claim 3, characterized in that the walls of the upper and lower cavity parts of the water heating vaporization tube cavity (21) are coated with high temperature resistant sealant layers (22) at the positions respectively contacting with the upper and lower sealing covers (411, 421) of the water heating vaporization tube.

6. A quartz glass tube circulating water electric heating steam generator according to claim 3, characterized in that the upper nut (414) and the lower nut (424) are outer hexagonal nuts.

7. The quartz glass tube circulating water electric heating steam generator according to claim 1 or 6, characterized in that the electric heating wire (3) is wound in a spiral state along the height direction of the water heating vaporizing tube (2) to cover the outer wall of the water heating vaporizing tube (2).

8. The quartz glass tube circulating water electric heating steam generator according to claim 7, characterized in that the electric heating wire coil gap (31) is formed by the gap of two adjacent coils above and below the electric heating wire (3) wound on the outer wall of the water heating vaporization tube (2) in a spiral state.

9. A quartz glass tube circulating water electric heating steam generator according to claim 8, characterized in that the electric heating wire coil gap (31) is filled with a high temperature resistant insulating ceramic filler.

10. A quartz glass tube circulating water electric heating steam generator according to claim 4, characterized in that the upper clamping ring power connection wire protective sleeve (55) is a ceramic sleeve.

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