Electric heating steam generator

Abstract

The utility model discloses an electric heating steam generator which comprises a shell assembly, a steam generator body, a steam generator body, a steam generator body and a steam generator body, and a water storage cavity is formed in the bottom of the inner side of the shell assembly; the electric heating device is installed on the shell assembly and used for heating liquid in the water storage cavity; the separation device comprises a first pore plate and a separation module, the first pore plate is arranged in the water storage cavity, and the separation module is arranged in the shell assembly and located above the water storage cavity. Through the structure, bubbles generated at the water bottom in the water storage cavity are broken in advance when rising to pass through the first pore plate, and splashing liquid drops formed by explosion of the bubbles on the liquid level and mixed into steam can be reduced, so that the liquid content in the steam can be reduced; and the liquid component of the steam can be further separated through the separation module, so that the content of the liquid component in the steam can be reduced through the first pore plate and the separation module, and the dryness of the steam is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to steam generator technical field, especially a kind of electric heating steam generator. BACKGROUND

[0002] Steam is often needed in medical, pharmaceutical and other fields, usually steam generator is used as preparation equipment, which uses liquid water as raw material, and generates steam by heating liquid water to boiling vaporization, and the steam generated by steam generator is transported to the equipment needing steam through external pipeline.

[0003] During preparation, liquid water is heated to boiling, and bubbles are generated at the bottom of water due to heating, and the bubbles burst after rising to water surface, and the steam in the bubbles is released and rises. However, there are many bubbles generated by water boiling, and the volume of each bubble is large, and these large bubbles burst to form splashing droplets after rising to liquid surface rapidly, so that the rising steam contains a large amount of liquid, which reduces the dryness of steam. In addition, the liquid in the steam also absorbs heat and vaporizes, which reduces the temperature of the steam, so that the temperature of the steam is difficult to meet the use requirement. Therefore, the structure of the steam generator needs to be improved to reduce the content of liquid in the steam. SUMMARY

[0004] The utility model discloses a kind of electric heating steam generators, which can reduce the content of liquid in steam and improve the dryness of steam.

[0005] To achieve the above object, an electric heating steam generator is provided, which comprises: a shell assembly, the inner side bottom of the shell assembly has a water storage cavity; an electric heating device, the electric heating device is installed on the shell assembly for heating the liquid in the water storage cavity; a separation device, comprising a first perforated plate and a separation module, the first perforated plate is arranged in the water storage cavity, and the separation module is arranged in the shell assembly and above the water storage cavity.

[0006] According to the electric heating steam generator, the shell assembly comprises a kettle shell and a separation tube shell, the top of the kettle shell has a mounting port, the bottom of the separation tube shell is open, and the bottom of the separation tube shell is fixedly connected with the kettle shell at the mounting port.

[0007] According to the electric heating steam generator, the separation module comprises a second perforated plate, and the second perforated plate is arranged obliquely in the separation tube shell.

[0008] According to the electric heating steam generator, the separation module further comprises a cover shell above the second perforated plate, the cover shell is covered on the top wall of the inner cavity of the separation tube shell, and the top side wall of the cover shell is provided with a filter hole, and the top of the separation tube shell is provided with an air outlet pipe, and the inlet end of the air outlet pipe is located in the inner cavity of the cover shell and is lower than the filter hole.

[0009] According to the electric heating steam generator, the bottom of the cover has a first water outlet.

[0010] According to the electric heating steam generator, the filter hole is a transverse strip, and the height of the filter hole is H, 0.15≤H≤0.25 mm.

[0011] According to the electric heating steam generator, the side wall of the kettle shell is provided with a flange interface, the electric heating device comprises a flange head and an electric heating pipe, the flange head is connected with the flange interface, and the electric heating pipe is installed on the flange head and extends into the water storage cavity.

[0012] According to the electric heating steam generator, the bottom of the shell assembly is connected with a liquid level gauge pipe and a water inlet pipe, and the liquid level gauge pipe and the water inlet pipe are communicated with the bottom of the water storage cavity.

[0013] According to the electric heating steam generator, the separation module further comprises a mounting cylinder located below the second hole plate, the outer side of the mounting cylinder is provided with a first spiral blade connected with the inner wall of the separation pipe shell, and the inner side of the mounting cylinder is provided with a mounting shell.

[0014] According to the electric heating steam generator, the top of the mounting cylinder is provided with a ring plate, and the outer side and the inner side of the ring plate extend above the first spiral blade and the second spiral blade respectively.

[0015] Beneficial effects: through the above structure, the bubbles generated at the bottom of the water storage cavity are broken in advance when rising through the first hole plate, which can reduce the splash of the liquid drops mixed into the steam when the bubbles are broken at the liquid surface, thereby reducing the liquid content in the steam; and the separation module can further separate the liquid from the steam, so that the liquid content in the steam can be reduced through the first hole plate and the separation module, and the dryness of the steam can be improved.

[0016] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below in combination with the drawings and embodiments;

[0018] Figure 1 is a structural view of the first embodiment of the present application;

[0019] Figure 2 is a sectional view of the first embodiment of the present application;

[0020] Figure 3Another sectional view of the first embodiment of the utility model;

[0021] Figure 4 The sectional view of the second embodiment of the utility model. DETAILED DESCRIPTION

[0022] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0023] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship of the upper, lower, front, rear, left, right and the like indicated by the drawings, is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as the limitation of the utility model.

[0024] In the description of the utility model, greater than, less than, more than and the like are understood as not including the number, above, below, within and the like are understood as including the number.If there is a description to the first, second, only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0025] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0026] Referring to Figures 1-3 The utility model discloses a first embodiment, a kind of electric heating steam generator, it includes shell assembly 10, electric heating device (not shown in the figure) and separation device, the inside bottom of shell assembly 10 has water storage cavity 111, electric heating device is installed in shell assembly 10, electric heating device is used to heat the liquid in water storage cavity 111, separation device includes first aperture plate 31 and separation module, first aperture plate 31 is arranged in water storage cavity 111, separation module is arranged in shell assembly 10, and separation module is located above water storage cavity 111.

[0027] In operation, water is filled in the water storage cavity 111 and the liquid level is higher than the first hole plate 31. The electric heating device heats the water in the water storage cavity 111 to boiling to generate steam and the steam rises. The bubbles generated at the bottom of the water are broken in advance when rising through the first hole plate 31, which can reduce the liquid content in the steam by preventing the bubbles from exploding at the liquid level to form splashing droplets mixed in the steam. The steam can be further separated from liquid by the separation module. Thus, the first hole plate 31 and the separation module can reduce the liquid content in the steam and improve the dryness of the steam.

[0028] In addition, the first hole plate 31 can also have the following effects: forming a steam cushion under the first hole plate 31 to make the evaporation surface load uniform; weakening the kinetic energy of the mixture to make the water surface stable and reduce the water level rise to avoid liquid level misjudgment.

[0029] The water volume of the water storage cavity 111 is less than 30 liters, which can reduce the equipment management requirements of the steam generator. The first hole plate 31 is provided with notches 311 on both sides to allow water to flow down quickly and form convection.

[0030] In the embodiment, the shell assembly 10 includes a kettle shell 11 and a separation tube shell 12. The kettle shell 11 has a mounting port 112 at the top, and the separation tube shell 12 is open at the bottom and fixedly connected to the kettle shell 11 at the mounting port 112 to make the separation tube shell 12 communicate with the water storage cavity 111 through the mounting port 112. The separation tube shell 12 is provided with a steam temperature detector interface 121 and a pressure detector interface 122 at the top. The water storage cavity 111 is located in the kettle shell 11, the separation module is located in the separation tube shell 12, and the water in the water storage cavity 111 is heated to generate steam, which flows through the separation module after passing through the mounting port 112.

[0031] In the embodiment, the separation module includes a second hole plate 321 and a cover shell 322. The second hole plate 321 is inclinedly arranged in the separation tube shell 12, and the cover shell 322 is located above the second hole plate 321 and covers the inner cavity top wall of the separation tube shell 12. The cover shell 322 is provided with filter holes 3221 at the top side wall, and the separation tube shell 12 is provided with an air outlet pipe 40 at the top. The inlet end of the air outlet pipe 40 is located in the inner cavity of the cover shell 322, and the position of the inlet end of the air outlet pipe 40 is lower than the position of the filter holes 3221.

[0032] In the structure, the second hole plate 321 arranged obliquely can make the steam uniformly pass upward and intercept the liquid, and the intercepted liquid can flow downward along the second hole plate 321 quickly and obliquely. The steam passing upward through the second hole plate 321 first passes through the filter hole 3221, and then flows downward to the inlet end of the air outlet pipe 40, and is discharged upward through the air outlet pipe 40. In this process, the filter hole 3221 can intercept and separate the liquid in the steam, and the steam needs to flow downward to the air outlet pipe 40 to be discharged upward, so the flow direction of the steam is changed, which can also play a role in separating the liquid. In this way, the second hole plate 321 and the cover 322 can both play a role in separating the liquid, so as to reduce the liquid content in the steam and improve the steam dryness.

[0033] The bottom of the cover 322 is provided with a first water outlet 3222 to flow the liquid in the cover 322 out, and the bottom edge of the second hole plate 321 is provided with a second water outlet 3211 to flow the liquid on the top of the second hole plate 321 downward.

[0034] In the embodiment, the filter hole 3221 is in a horizontal strip shape, and the height of the filter hole 3221 is H, and 0.15≤H≤0.25mm, so as to ensure effective interception and separation of the liquid.

[0035] In the embodiment, the side wall of the boiler shell 11 is provided with a flange interface 113, the electric heating device includes a flange head and an electric heating pipe, the flange head is connected to the flange interface 113, the electric heating pipe is installed on the flange head, and the electric heating pipe extends into the water storage cavity 111. The electric heating pipe is located below the first hole plate 31.

[0036] In the embodiment, the bottom of the boiler shell 11 is connected to a liquid level meter pipe 114 and a water inlet pipe 115, and the liquid level meter pipe 114 and the water inlet pipe 115 are both in communication with the bottom of the water storage cavity 111. The liquid level meter pipe 114 can be installed with a liquid level sensor to detect the liquid level in the water storage cavity 111, and the water inlet pipe 115 is used to supply water in the water storage cavity 111.

[0037] Referring to Figure 4 The second embodiment of the utility model is compared with the first embodiment, and the difference of the second embodiment is that the separation module further includes a mounting cylinder 323 located below the second hole plate 321, the mounting cylinder 323 is through from top to bottom, the first spiral blade 3231 is arranged on the outer side of the mounting cylinder 323, the first spiral blade 3231 is fixedly connected with the inner wall of the separation pipe shell 12, the mounting shell 3232 is arranged on the inner side of the mounting cylinder 323, and the second spiral blade 3233 is arranged between the outer side wall of the mounting shell 3232 and the inner side wall of the mounting cylinder 323.

[0038] The inner and outer sides of the mounting cylinder 323 are formed with spiral channels by the first spiral blade 3231 and the second spiral blade 3233, steam rises along the spiral channels, and liquid components can be separated, thereby improving the liquid component separation effect of the separation module; steam can flow along the inner and outer sides of the mounting cylinder 323, steam flowability is improved, and flow resistance is reduced.

[0039] In the embodiment, the top of the mounting cylinder 323 is provided with a ring plate 3234, the outer side and the inner side of the ring plate 3234 extend to above the first spiral blade 3231 and the second spiral blade 3233 respectively, that is, the longitudinal projection of the ring plate 3234 partially overlaps the longitudinal projection of the first spiral blade 3231 and the longitudinal projection of the second spiral blade 3233 respectively, so that the rising steam changes flow direction at the ring plate 3234, so as to separate out liquid components.

[0040] The above describes the embodiments of the utility model in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. An electrically heated steam generator, characterized in that, include: A housing assembly having a water storage cavity at its inner bottom; An electric heating device, which is installed on the housing assembly, is used to heat the liquid in the water storage chamber; The separation device includes a first perforated plate and a separation module. The first perforated plate is disposed in a water storage cavity, and the separation module is disposed in a housing assembly and located above the water storage cavity.

2. The electric heating steam generator according to claim 1, characterized in that, The housing assembly includes a boiler drum shell and a separation tube shell. The top of the boiler drum shell has an installation port, and the bottom of the separation tube shell is open. The bottom of the separation tube shell is fixedly connected to the boiler drum shell at the installation port.

3. An electrically heated steam generator according to claim 2, characterized in that, The separation module includes a second perforated plate, which is inclinedly disposed inside the separation tube shell.

4. An electrically heated steam generator according to claim 3, characterized in that, The separation module also includes a cover located above the second perforated plate. The cover is installed on the top wall of the inner cavity of the separation tube shell, and the top side wall of the cover is provided with filter holes. An air outlet pipe is installed on the top of the separation tube shell, and the inlet end of the air outlet pipe is located in the inner cavity of the cover and is lower than the filter holes.

5. An electrically heated steam generator according to claim 4, characterized in that, The bottom of the casing has a first drainage outlet.

6. An electrically heated steam generator according to claim 4, characterized in that, The filter holes are horizontal strips, and the height of the filter holes is H, where 0.15≤H≤0.25mm.

7. An electrically heated steam generator according to claim 2, characterized in that, The side wall of the boiler drum shell is provided with a flange interface. The electric heating device includes a flange head and an electric heating tube. The flange head is connected to the flange interface, and the electric heating tube is installed on the flange head and extends into the water storage cavity.

8. An electrically heated steam generator according to claim 1 or 2, characterized in that, The bottom of the housing assembly is connected to a level gauge tube and a water inlet pipe, both of which are connected to the bottom of the water storage chamber.

9. An electrically heated steam generator according to any one of claims 3 to 6, characterized in that, The separation module also includes a mounting cylinder located below the second orifice plate. The outer side of the mounting cylinder is provided with a first spiral blade connected to the inner wall of the separation tube shell. The inner side of the mounting cylinder is provided with a mounting shell. A second spiral blade is provided between the outer wall of the mounting shell and the inner wall of the mounting cylinder.

10. An electrically heated steam generator according to claim 9, characterized in that, The top of the mounting cylinder is provided with an annular plate, the outer and inner sides of which extend above the first and second helical blades, respectively.

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