Steam electric auxiliary heating device

By connecting the steam electric auxiliary heating device in series at the output port of the steam engine, the combination of the cavity structure, the flow hood and the electric heating unit is used to solve the problem of high pressure-free steam humidity, and the increase of steam temperature and humidity are achieved, reducing cost and safety risks.

CN222783511UActive Publication Date: 2025-04-22FOSHAN OUKA ELECTRIC HEATING DESIGN CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421374344.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-17
Publication Date
2025-04-22
Estimated Expiration
2034-06-17

AI Technical Summary

Technical Problem

In the prior art, the pressureless steam output by the steam engine is high, resulting in inconveniences such as "rotten the bottom" of steamed buns, "porridge" of steamed rice, and lowering the thick bottom of brewing wine. Moreover, the use of the pressure-bearing saturated steam production method has cost and safety risks.

Method used

A steam electric auxiliary heating device is designed, including a cavity structure, a heating unit and a control unit. The steam enters the cavity structure through the steam inlet interface, and after being scattered by the diffuser, it exchanges with the heat energy released by the heating unit, increasing the steam temperature and reducing humidity.

Benefits of technology

It effectively increases the temperature of the steam, and reduces the humidity of the steam, solves the practical problems caused by high steam humidity, and does not require pressure-bearing equipment, reducing costs and safety risks.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222783511U_ABST
    Figure CN222783511U_ABST
Patent Text Reader

Abstract

The utility model provides a steam electric auxiliary heating device which comprises a cavity structure, the cavity structure is provided with a steam inlet connector and a steam outlet connector, and one end of the steam inlet connector is connected with a flow diffusing cover located in the cavity structure; the heating unit is arranged in the cavity structure; the control unit is electrically connected with the heating unit. The device has the beneficial effects that the cavity structure is provided with the steam inlet connector and the steam outlet connector, one end, located in the cavity structure, of the steam inlet connector is connected with the flow diffusion cover, the heating unit is arranged in the cavity structure, and output control is conducted on the heating unit through the control unit; steam flows in the cavity structure through a sufficient path and time in a scattering mode through the flow scattering cover, heat energy released through the heating unit is absorbed by the steam, and therefore the steam temperature is increased while steam molecular particle miniaturization is achieved, the humidity of the exhausted steam is reduced, and the service life of the steam is prolonged. And the application requirement of a use scene is comprehensively met.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of steam heating, in particular to a steam electric auxiliary heating device. Background Art

[0002] The temperature and humidity of steam vary depending on the way it is generated. In addition to the power factor, the highest temperature of pressureless evaporative steam is the boiling point of water, while the temperature of saturated steam is directly related to the pressure.

[0003] People use steam in different environments and have different needs for temperature and humidity. The steam produced by volumetric pressureless boiling is often impractical due to its high humidity. For example, steamed buns are prone to "soggy bottom", steamed rice is prone to "porridge", and the concentration of wine is reduced, which is very inconvenient. When using the pressurized saturated steam production method, the cost and risk factors of the pressure vessel are issues that cannot be ignored.

[0004] Therefore, in order to solve the above problems, an electric auxiliary heating device is developed and connected in series to the steam engine output port to increase the temperature of the steam and effectively reduce the humidity of the steam. Utility Model Content

[0005] The utility model aims to provide a steam electric auxiliary heating device, aiming to solve the problem of high humidity of the unpressurized steam output by the steam engine in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a steam electric assisted heating device, including: a cavity structure, the cavity structure is provided with a steam inlet interface and a steam outlet interface, one end of the steam inlet interface is connected to a diffuser cover, and the diffuser cover is located inside the cavity structure; a heating unit is arranged inside the cavity structure; and a control unit is electrically connected to the heating unit.

[0007] Furthermore, a first sealing end cover and a second sealing end cover are respectively provided at both ends of the cavity structure, the steam inlet interface and the interior of the diffuser are communicated and arranged on the first sealing end cover, and the steam outlet interface is arranged on the second sealing end cover.

[0008] Furthermore, the diffuser cover is provided with a plurality of diffuser holes communicated with the interior thereof.

[0009] Furthermore, a sealing cover is connected to the outer side of the first sealing end cover, and a mounting hole for the steam inlet interface to pass through is provided on the sealing cover, and a sealing member is provided between the mounting hole and the steam inlet interface.

[0010] Furthermore, the cover is provided with a wire tube connected to the control unit, the heating unit is an electric heating unit, the wiring terminal of the heating unit passes through the first sealing end cover and extends into the cover, and is electrically connected to the control unit through electric wires passing through the wire tube.

[0011] Furthermore, the cover has a discharge port.

[0012] Furthermore, the control unit is arranged on the cavity structure through an electric control box, one end of the wire tube is communicated with the interior of the cover, and the other end of the wire tube is communicated with the interior of the electric control box.

[0013] Furthermore, the electric control box is provided with a display screen and control buttons electrically connected to the control unit.

[0014] Furthermore, a temperature sensor is provided on the cavity structure or the steam outlet interface, and the temperature sensor is signal-connected to the control unit.

[0015] Furthermore, the outer surface of the cavity structure is covered with a layer of thermal insulation material.

[0016] Compared with the prior art, the utility model provides a steam electric auxiliary heating device, in which a steam inlet interface and a steam outlet interface are provided on a cavity structure, one end of the steam inlet interface is located inside the cavity structure and is connected to a diffuser, and a heating unit is arranged inside the cavity structure, and its output is controlled by a control unit. When the steam enters the cavity structure from the steam inlet interface, the steam has a sufficient path and time to flow inside the cavity structure in a scattered manner through the diffuser, and the heat energy released by the heating unit is absorbed by the steam, thereby realizing the miniaturization of steam molecular particles while also improving the steam temperature, reducing the humidity of the discharged steam, and fully meeting the application needs of the usage scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a steam electric auxiliary heating device of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the cavity structure and the sealing cover in a steam electric auxiliary heating device of the utility model;

[0019] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0020] Figure 4 This is a schematic diagram of the structure of a diffuser in a steam electric auxiliary heating device of the utility model;

[0021] Figure 5This is a chart of relevant experimental measured data after a steam electric auxiliary heating device of the utility model is connected to a 3KW steam engine, a 6KW steam engine and a 12KW steam engine for inputting an electric auxiliary heating device.

[0022] Description of Reference Numerals

[0023] 10- cavity structure; 11- steam inlet interface; 12- steam outlet interface; 13- diffuser cover; 131- diffuser hole; 14- first sealing end cover; 15- second sealing end cover;

[0024] 20- Heating unit;

[0025] 30-cover; 31-mounting hole; 32-seal; 33-conductor; 34-discharge port;

[0026] 40-electric control box; 41-display screen; 42-control buttons; 43-temperature sensor. DETAILED DESCRIPTION

[0027] The present invention is described in detail below in conjunction with specific embodiments.

[0028] In the present utility model, when directional words appear, they are used to facilitate the description of the utility model and simplify the description, rather than to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present utility model.

[0029] In the present invention, unless otherwise specified and limited, when terms such as "disposed on", "connected" and "connected" appear, these terms should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 1 and Figure 2 As shown, a steam electric auxiliary heating device includes a cavity structure 10, a heating unit 20 and a control unit.

[0031] The cavity structure 10 is a cylindrical structure with a hollow interior. The outer surface of the cavity structure 10 is covered with a layer of thermal insulation material, which can make the cavity structure 10 more energy-efficient.

[0032] The cavity structure 10 is provided with a steam inlet interface 11 and a steam outlet interface 12 , both of which are tubular structures. One end of the steam inlet interface 11 is connected to a diffuser 13 , and the diffuser 13 is located inside the cavity structure 10 .

[0033] The heating unit 20 is disposed inside the cavity structure 10 , and the control unit is electrically connected to the heating unit 20 to perform output control on the heating unit 20 .

[0034] The steam inlet interface 11 is used to connect to the steam output pipeline of the steam engine, and the steam outlet interface 12 is used to connect to the terminal device. In specific implementation, when the steam enters the cavity structure 10 from the steam inlet interface 11, the steam is scattered through the diffuser 13 to allow sufficient paths and time for the steam to flow inside the cavity structure 10, and the heat energy released by the heating unit 20 is absorbed by the steam, thereby realizing the miniaturization of steam molecular particles, which increases the temperature of the steam while reducing the humidity of the discharged steam, and finally outputs the heated and dehumidified steam to the terminal device through the steam outlet interface 12 for use.

[0035] In this embodiment, a first sealing end cover 14 and a second sealing end cover 15 are respectively provided at both ends of the cavity structure 10. The first sealing end cover 14 and the second sealing end cover 15 are respectively sealed and connected at the two ends of the cavity structure 10 by welding. The steam inlet interface 11 and the interior of the diffuser 13 are arranged on the first sealing end cover 14, and the steam outlet interface 12 is arranged on the second sealing end cover 15.

[0036] Specifically, the first sealing end cover 14 is welded to the steam inlet interface 11 and the diffuser 13 as an integral structure, and then welded and sealed to one end of the cavity structure 10; the second sealing end cover 15 is welded to the steam outlet interface 12 as an integral structure, and then welded and sealed to the other end of the cavity structure 10.

[0037] like Figure 2 and Figure 4 As shown, the diffuser 13 is a cylindrical structure with one end sealed and the interior hollow. The diffuser 13 is provided with a plurality of diffuser holes 131 connected with the interior thereof. After the steam enters the diffuser 13, the steam can only enter the interior of the cavity structure 10 in a scattered state from the plurality of diffuser holes 131 due to the sealed state of one end thereof. The steam entering has a sufficient path and time to flow, and the heat energy released by the heating unit 20 is absorbed by the steam, which increases the temperature of the steam while reducing the humidity of the steam.

[0038] like Figure 2 and Figure 3 As shown, in this embodiment, a sealing cover 30 is connected to the outer side of the first sealing end cover 14 , and a mounting hole 31 for the steam inlet interface 11 to pass through is provided on the sealing cover 30 , and a sealing member 32 is provided between the mounting hole 31 and the steam inlet interface 11 .

[0039] The cover 30 is provided with a wire tube 33 connected to the control unit. The heating unit 20 is an electric heating unit 20. The connection terminal of the heating unit 20 passes through the first sealing end cover 14 and extends into the cover 30, and is electrically connected to the control unit through the wire tube 33.

[0040] In the specific implementation, since the heating unit 20 is an electric heating unit, the wiring terminal of the heating unit 20 needs to extend through the cavity structure 10 for wiring. In order to avoid the wiring terminal of the heating unit 20 being directly exposed to the outside, a cover 30 is connected to the outside of the first sealing end cover 14 to protect it. The seal 32 is a radial seal used to prevent the external steam source and water source from directly entering the cover 30 area, causing the connection failure of the wiring terminal. A wire tube 33 connected to the control unit is provided on the cover 30. The wiring terminal of the heating unit 20 is electrically connected to the control unit through the wire passing through the wire tube 33, which also protects the connected wires.

[0041] Among them, the heating unit 20 is an electric heating tube, which belongs to the half-air burning type and needs to have long-term dry burning resistance, that is, the area load must be ≤9W / cm2, which is the maximum load number that domestic fillers can withstand. For environments with application temperatures ≤400°C, iron-chromium materials are allowed to be used for electric heating wire materials, and nickel-chromium materials must be used for temperatures above this temperature, otherwise the life of the heating unit 20 cannot be guaranteed. During specific installation, when two electric heating tubes are used, the absolute distance between the two adjacent heating tubes in space must be ≥1 times the tube diameter, otherwise the high temperature characteristics of each other will interfere with each other, resulting in a shortened life of the heating tube.

[0042] In this embodiment, the cover 30 is sleeved on the steam inlet interface 11 through the mounting hole 31, and then connected and fixed to the first sealing end cover 14 through fasteners. A spacing space is formed between the cover 30 and the first sealing end cover 14. Condensation water droplets are easily generated in the spacing space. Therefore, a discharge port 34 is provided on the cover 30. The discharge port 34 is vertically arranged at the bottom of the cover 30, so that the condensation water droplets in this spacing space can be discharged from the discharge port 34 in a free fall.

[0043] In this embodiment, the control unit is arranged on the cavity structure 10 through the electric control box 40, and the control unit is installed inside the electric control box 40. One end of the wire tube 33 is connected to the inside of the cover 30, and the other end of the wire tube 33 is connected to the inside of the electric control box 40, so that the control unit is electrically connected to the heating unit 20 through the wire, so that the device is compact and does not occupy space. In addition, the electric control box 40 is provided with a display screen 41 and a control button 42 electrically connected to the control unit, which is convenient for debugging and control and portable.

[0044] In this embodiment, a temperature sensor 43 is provided on the cavity structure 10 or the steam outlet interface 12. The temperature sensor 43 is connected to the control unit signal (the temperature sensor 43 signal is processed by the single-chip microcomputer to achieve automatic control) and is used to monitor the temperature of the steam after being heated to achieve self-protection against over-temperature. The humidity and temperature can also be displayed on the display screen 41 to provide an early warning function.

[0045] In addition, the main functions of the control unit also include anti-leakage protection and the power of the electric heating component can be infinitely adjusted through thyristor to meet different humidity or temperature requirements.

[0046] like Figure 5 As shown, the following can be obtained from the chart analysis:

[0047] 1. When the input steam volume is small, as the power increases after passing through this device, the temperature rise increment and humidity decrease within the predetermined direction of the design;

[0048] 2. This device is fully applicable to pressurized and non-pressurized steam systems, and realizes a new method of achieving high temperature without high pressure;

[0049] 3. The application range can be expanded and adapted by simply changing the installed power of the device.

[0050] After the steam electric auxiliary heating device of the utility model is connected in series with the traditional steam pipe conveying pipe, the function that can be achieved is to increase the steam temperature and reduce the steam humidity. Therefore, it can be applied in all application places that require such functional characteristics without special restrictions. The size of the steam flow rate and the increment of the required temperature adjustment are only the matching design parameters of the electric power size of the device. The specific needs need to be adjusted as the main parameters change, and the volume size of the cavity structure will also change accordingly, including the consistent design of the inlet and outlet air interfaces or the use of reducers to achieve docking.

[0051] After actual sample testing and data analysis, if the function of this device is adopted, the inconvenience caused by the original high-humidity and low-temperature steam in the application can be fully changed, and similar devices can be used in series or parallel to meet various needs. Moreover, this product can be used horizontally and vertically, and the direction is not restricted. Therefore, its future prospect will be to become a standard functional component used in steam places.

[0052] In the absence of conflict, the above-mentioned embodiments and features thereof may be combined with each other.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A steam electric auxiliary heating device, characterized in that: include: A cavity structure, wherein a steam inlet interface and a steam outlet interface are provided on the cavity structure, one end of the steam inlet interface is connected to a diffuser, and the diffuser is located inside the cavity structure; A heating unit is arranged inside the cavity structure; A control unit is electrically connected to the heating unit.

2. A steam electric auxiliary heating device according to claim 1, characterized in that: The two ends of the cavity structure are respectively provided with a first sealing end cover and a second sealing end cover, the steam inlet interface and the interior of the diffuser are communicated and arranged on the first sealing end cover, and the steam outlet interface is arranged on the second sealing end cover.

3. A steam electric auxiliary heating device according to claim 1 or 2, characterized in that: The diffuser cover is provided with a plurality of diffuser holes which are connected with the interior thereof.

4. A steam electric auxiliary heating device according to claim 2, characterized in that: A sealing cover is connected to the outer side of the first sealing end cover, and a mounting hole for the steam inlet interface to pass through is provided on the sealing cover, and a sealing member is provided between the mounting hole and the steam inlet interface.

5. A steam electric auxiliary heating device according to claim 4, characterized in that: The cover is provided with a wire tube connected to the control unit. The heating unit is an electric heating unit. The wiring terminal of the heating unit passes through the first sealing end cover and extends into the cover, and is electrically connected to the control unit through an electric wire passing through the wire tube.

6. A steam electric auxiliary heating device according to claim 5, characterized in that: The sealing cover is provided with a discharge port.

7. A steam electric auxiliary heating device according to claim 5, characterized in that: The control unit is arranged on the cavity structure through an electric control box, one end of the wire tube is communicated with the interior of the cover, and the other end of the wire tube is communicated with the interior of the electric control box.

8. A steam electric auxiliary heating device according to claim 7, characterized in that: The electric control box is provided with a display screen and control buttons which are electrically connected to the control unit.

9. The steam electric auxiliary heating device according to claim 1, characterized in that: A temperature sensor is provided on the cavity structure or the steam outlet interface, and the temperature sensor is connected to the control unit by signal.

10. The steam electric auxiliary heating device according to claim 1, characterized in that: The outer surface of the cavity structure is covered with a thermal insulation material layer.