Melt switching device
By combining a water-cooled induction heating device and a cooling sleeve, the problems of heat loss and material heat resistance in high-temperature melt flow control in existing technologies are solved, achieving efficient and economical melt flow control.
Patent Information
- Application Number
- CN202423045805.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-10
AI Technical Summary
In existing technologies, the methods of controlling the flow of high-temperature melts through resistance heating and valves have problems such as large heat loss and high requirements for the heat resistance of materials.
The combination of a water-cooled induction heating device, a conductive refractory material channel, and a cooling sleeve is adopted. Electromagnetic heating is used to make the melt flow, and the melt flow is cut off by power interruption and cooling water, thereby reducing heat loss and lowering the material performance requirements.
It achieves efficient melt flow control, high thermal efficiency and low heat loss, low material performance requirements, and good economic efficiency.
Smart Images
Figure CN223928476U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to metallurgical technology field, more specifically, relate to a kind of melt switch device. BACKGROUND
[0002] In industrial application field, especially in metal smelting process, control high-temperature melt (such as metal liquid or molten slag fluid) in the flow and cut-off state in pipeline is the common problem of high-temperature melt conveying.
[0003] At present, in order to make high-temperature metal liquid or molten slag fluid in the pipeline in flow state, to avoid pipeline blockage, the general method is to heat the pipeline wall by conventional resistance heating body, heat transfer to the fluid in the pipeline by the pipeline wall, so that the temperature of the fluid in the pipe is increased, so as to keep flowing state;The control mode of melt flow state in pipeline is to install valve on the pipeline to meet the requirements of high-temperature metal liquid or molten slag fluid conveying project.
[0004] The above-mentioned flow control scheme of hot melt in pipeline, when the resistance heating body directly heats the sealed pipeline, the heat loss of the outer side of the resistance heating body is large, and the flow and cut-off state of high-temperature melt in the pipeline is controlled by resistance heating body and valve, the heat resistance of the material of resistance heating body and valve is high, thus, due to the problems of material, structure, condensation and so on, it is difficult to implement economically.
[0005] It should be noted that: the information disclosed in the above background section is only used to strengthen the understanding of the background of the utility model, so it can include information that does not constitute prior art known to those skilled in the art. CONTENT OF UTILITY MODEL
[0006] In view of the above problems, the purpose of the utility model is to provide a kind of melt switch device, to solve the problems of heat loss and high heat resistance of material in the prior art by resistance heating, valve opening and closing control fluid flow state in sealed pipeline.
[0007] The utility model provides a kind of melt switch device, for controlling the melt flow state in sealed pipeline, it is characterized in that, including water-cooled induction heating device, electrically conductive refractory material passage and cooling jacket;Wherein,
[0008] The water-cooled induction heating device includes water-cooled induction coil arranged outside the sealed pipeline;
[0009] The electrically conductive refractory material passage is arranged in the inside of the sealed pipeline;Melt passage is formed in the inside of the electrically conductive refractory material passage;
[0010] The cooling sleeve is arranged on the sealed pipe and located at the side end of the water-cooled induction coil; a sleeve water inlet and a sleeve water outlet are arranged at the two ends of the cooling sleeve respectively.
[0011] An outer thermal insulation material layer is arranged between the water-cooled induction coil and the outer sidewall of the sealed pipe.
[0012] In addition, preferably, the cooling sleeve is arranged at any one end or both ends of the water-cooled induction coil.
[0013] In addition, preferably, a water-cooled channel is arranged on the water-cooled induction coil; a channel water inlet and a channel water outlet are arranged on the water-cooled channel.
[0014] In addition, preferably, the electrically-conductive refractory material channel is arranged in the middle of the sealed pipe.
[0015] In addition, preferably, an inner thermal insulation material layer is arranged between the outer sidewall of the electrically-conductive refractory material channel and the inner sidewall of the sealed pipe.
[0016] In addition, preferably, the inner thermal insulation material layer is any one of a glass fiber layer, an asbestos layer, a rock wool layer, a silicate layer, carbon felt or at least two combined in any order.
[0017] In addition, preferably, the outer thermal insulation material layer is any one of a glass fiber layer, an asbestos layer, a rock wool layer, a silicate layer, carbon felt or at least two combined in any order.
[0018] In addition, preferably, the sealed pipe is a non-magnetic sealed steel pipe.
[0019] In addition, preferably, a power supply is connected to the water-cooled induction coil.
[0020] In addition, preferably, the electrically-conductive refractory material channel is a graphite channel.
[0021] From the above technical solutions, the melt switch device provided by the utility model can heat the electrically-conductive refractory material channel and the melt in the melt channel by making the water-cooled induction coil arranged outside the sealed pipe in an electrified state, so that the melt is in a flowing state, and the electromagnetic heating mode is used, so that the heat efficiency is high and the heat loss is small; when it is necessary to cut off the melt in the sealed pipe in a flowing state, the water-cooled induction coil is in a power-off state, and cooling water is introduced into the cooling sleeve, so that the electrically-conductive refractory material channel and the melt in the melt channel are rapidly cooled, the melt is solidified to cut off the flow in the pipe, and the material performance requirement is low and the economy is high compared with the valve used in the prior art to control the melt flow state. BRIEF DESCRIPTION OF DRAWINGS
[0022] Other objects and results of the present application will become more apparent and easily understood with reference to the following description, taken in conjunction with the accompanying drawings, in which:
[0023] Figure 1 is a structural schematic view of a melt switch device according to an embodiment of the present application;
[0024] Figure 2 is a position setting schematic view of a cooling sleeve according to an embodiment of the present application;
[0025] Figure 3 is another position setting schematic view of a cooling sleeve according to an embodiment of the present application;
[0026] Figure 4 is a flow chart of controlling melt flow state in a sealed pipeline using a melt switch device according to an embodiment of the present application.
[0027] In the drawings, 1 - sealed pipeline, 2 - water-cooled induction coil, 3 - electrically conductive refractory material passage, 31 - melt passage, 4 - melt, 5 - outer layer of thermal insulation material, 6 - cooling sleeve, 7 - inner layer of thermal insulation material.
[0028] The same reference numbers in all the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION
[0029] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It can be evident, however, that such embodiment(s) can be practiced without these specific details.
[0030] In view of the foregoing prior art, the scheme of controlling fluid flow state in a sealed pipeline by resistance heating and valve opening and closing has problems of large heat loss and high requirement for material heat resistance, and a melt switch device is proposed.
[0031] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0032] To illustrate the melt switch device provided by the present application, Figure 1 a structure of a melt switch device according to an embodiment of the present application is shown; Figure 2 a position of a cooling sleeve according to an embodiment of the present application is shown; Figure 3 another position of a cooling sleeve according to an embodiment of the present application is shown; Figure 4 a flow of controlling melt flow state in a sealed pipeline using a melt switch device according to an embodiment of the present application is shown.
[0033] As Figures 1 to 3 The melt switch device provided by the utility model is used for controlling the melt flow state in the sealed pipeline 1, comprising a water-cooled induction heating device, a conductive refractory material channel 3 and a cooling sleeve 6; wherein,
[0034] The water-cooled induction heating device comprises a water-cooled induction coil 2 arranged around the outer side of the sealed pipeline 1.
[0035] The conductive refractory material channel 3 is arranged in the interior of the sealed pipeline 1; a melt channel 31 is formed in the interior of the conductive refractory material channel 3.
[0036] The cooling sleeve 6 is arranged on the sealed pipeline 1 and located at the side end of the water-cooled induction coil 2; a sleeve water inlet and a sleeve water outlet are respectively arranged at the two ends of the cooling sleeve 6.
[0037] An outer thermal insulation material layer 5 is arranged between the water-cooled induction coil 2 and the outer sidewall of the sealed pipeline 1.
[0038] The outer thermal insulation material layer 5 is used for heat insulation treatment of the outer side of the sealed pipeline 1, so that the temperature of the outer part of the sealed pipeline 1 is not too high.
[0039] It should be noted that the melt switch device provided by the utility model can be installed on a certain section of the sealed pipeline 1 according to actual needs, so as to control the melt flow state in the section of the sealed pipeline 1; or a plurality of melt switch devices can be arranged at intervals on the sealed pipeline 1, and the melt flow states in the plurality of sections of the sealed pipeline 1 can be controlled differently according to the needs of the melt conveying project, and the utility model does not make special limitation on this.
[0040] The water-cooled induction coil 2 arranged around the outer side of the sealed pipeline 1 is in a power-on state, the conductive refractory material channel 3 and the melt 4 in the melt channel 31 are heated, so that the melt 4 is in a flowing state, and the electromagnetic heating mode is used, so that the heat efficiency is high and the heat loss is small; when it is necessary to cut off the melt 4 in the flowing state in the interior of the sealed pipeline 1, the water-cooled induction coil 2 is in a power-off state, and cooling water is supplied to the cooling sleeve 6, so that the conductive refractory material channel 3 and the melt 4 in the melt channel 31 are rapidly cooled, the melt 4 is solidified to cut off the flow in the pipeline, and compared with the valve used for controlling the melt flow state in the prior art, the requirement for the material performance is low and the economy is high.
[0041] As a preferred scheme of the utility model, the cooling sleeve 6 is arranged at any one end or both ends close to the water-cooled induction coil 2.
[0042] It should be noted that the cooling sleeve 6 can be arranged at the rear end of the water-cooled induction coil 2, as shown in Figure 2 , or can be arranged at the front end of the water-cooled induction coil 2, as shown inFigure 3 Two cooling jackets 6 can also be provided, i.e. a cooling jacket 6 is provided at both ends of the water-cooled induction coil 2 to accelerate the cooling speed of the electrically conductive refractory material channel 3 and the melt 4 inside the electrically conductive refractory material channel 3.
[0043] As a preferred scheme of the present application, a water-cooled channel is provided on the water-cooled induction coil 2; a channel water inlet and a channel water outlet are provided on the water-cooled channel.
[0044] It should be noted that the water-cooled channel can be provided inside the water-cooled induction coil 2 or on one side of the water-cooled induction coil 2, and the present application does not make special limitations thereon. The cooling water flowing from the channel water inlet flows along the water-cooled channel to cool the water-cooled induction coil 2. The cooling jacket 6 and the water-cooled induction coil 2 can be connected to the same cooling water source or can be provided with independent water sources, and the present application does not make special limitations thereon.
[0045] As a preferred scheme of the present application, the electrically conductive refractory material channel 3 is provided in the middle of the sealed pipe 1.
[0046] Providing the electrically conductive refractory material channel 3 in the middle of the sealed pipe 1 makes the overall structure more reasonable and makes the heating of the melt 4 in the melt channel 31 more uniform.
[0047] As a preferred scheme of the present application, an inner thermal insulation material layer 7 is provided between the outer side wall of the electrically conductive refractory material channel 3 and the inner side wall of the sealed pipe 1.
[0048] The inner thermal insulation material layer 7 insulates the inner side of the sealed pipe 1, avoiding the influence of the heat generated by the electrically conductive refractory material channel 3 on the sealed pipe 1.
[0049] As a preferred scheme of the present application, the inner thermal insulation material layer 7 is any one of a glass fiber layer, an asbestos layer, a rock wool layer, a silicate layer, and carbon felt or at least two of them combined in any order.
[0050] As a preferred scheme of the present application, the outer thermal insulation material layer 5 is any one of a glass fiber layer, an asbestos layer, a rock wool layer, a silicate layer, and carbon felt or at least two of them combined in any order.
[0051] It should be noted that the inner thermal insulation material layer 7 and the outer thermal insulation material layer 5 are preferably but not limited to any one of a glass fiber layer, an asbestos layer, a rock wool layer, a silicate layer, and carbon felt or at least two of them combined in any order, and the present application does not make special limitations thereon.
[0052] As a preferred scheme of the present application, the sealed pipe 1 is a non-magnetic sealed steel pipe.
[0053] The sealed pipe 1 is preferably, but not limited to, a non-magnetically sealed steel pipe. When the water-cooled induction coil 2 is in the state of water flow and energization, the eddy current loss generated on it is small, so that the water-cooled induction coil 2 has a good heating effect on the conductive refractory material channel 3, and the non-magnetically sealed steel pipe has good high-temperature stability.
[0054] In a preferred embodiment of this invention, a power supply (not shown in the figure) is connected to the water-cooled induction coil 2. The power supply powers the water-cooled induction coil 2.
[0055] As a preferred embodiment of this utility model, the conductive refractory material channel 3 is a graphite channel.
[0056] It should be noted that the conductive refractory material channel 3 is preferably, but not limited to, a graphite channel, and the water-cooled induction coil 2 has a better heating effect on it.
[0057] like Figure 4 As shown, the process of controlling the flow state of melt 4 in sealed pipe 1 using the melt switch device of this utility model embodiment includes the following steps:
[0058] Step S1: Install the fusible link device on the sealed pipe 1;
[0059] Step S2: Keep the cooling sleeve 6 in a water-off state and energize the water-cooled induction coil 2 to heat the conductive refractory material channel 3 and the melt 4 located in the melt channel 31, so that the melt 4 is in a flowing state in the melt channel 31.
[0060] Step S3: When it is necessary to cut off the melt in the melt channel 31, the water-cooled induction coil 2 is de-energized, and the sealed pipe 31 is cooled by cooling water introduced into the cooling sleeve 6, so as to cool the conductive refractory material channel 3, thereby rapidly cooling and solidifying the melt 4 in the melt channel 31, so as to cut off the melt in the melt channel 31.
[0061] During the installation of the melt switch device on the sealed pipe 1, the conductive refractory material channel 3 is placed in the middle of the sealed pipe to make the structure more reasonable and the melt 4 heated more evenly.
[0062] It can be seen from the above specific embodiment that the melt switch device provided by the utility model, through making the water-cooled induction coil arranged outside the sealed pipeline in the electrified state, the electrically conductive refractory material channel and the melt located in the melt channel are heated, so that the melt is in the flowing state, the electromagnetic heating mode is used, the thermal efficiency is high and the heat loss is small; when it is needed to cut off the melt in the flowing state in the sealed pipeline, the water-cooled induction coil is in the power-off state, and cooling water is input into the cooling jacket, so that the electrically conductive refractory material channel and the melt located in the melt channel are rapidly cooled, the melt is solidified to cut off the flowing in the pipeline, compared with the melt flowing state controlled by the valve in the prior art, the material performance requirement is low, and the economy is high.
[0063] The melt switch device according to the utility model is described above with reference to the drawings in an exemplary manner. However, those skilled in the art should understand that various improvements can be made to the melt switch device according to the utility model described above without departing from the content of the utility model. Therefore, the protection scope of the utility model should be determined by the content of the appended claims.
Claims
1. A melt switch device for controlling the passage of a melt stream within a sealed conduit, characterized by, The melt switch device comprises a water-cooled induction heating device, a conductive refractory material channel and a cooling jacket, wherein The water-cooled induction heating device comprises a water-cooled induction coil arranged outside a sealed pipe. The conductive refractory material channel is arranged inside the sealed pipe, and a melt channel is formed inside the conductive refractory material channel. The cooling jacket is arranged on the sealed pipe and located at the side end of the water-cooled induction coil, and a jacket water inlet and a jacket water outlet are arranged at both ends of the cooling jacket, respectively. An outer thermal insulation material layer is arranged between the water-cooled induction coil and the outer sidewall of the sealed pipe.
2. The melt switch device according to claim 1, wherein The cooling jacket is arranged at any one end or both ends of the water-cooled induction coil.
3. The melt switch device according to claim 1, wherein A water-cooled channel is arranged on the water-cooled induction coil. A channel water inlet and a channel water outlet are arranged on the water-cooled channel.
4. The melt switch device according to claim 1, wherein The conductive refractory material channel is arranged in the middle of the sealed pipe.
5. The melt switch device according to claim 1, wherein An inner thermal insulation material layer is arranged between the outer sidewall of the conductive refractory material channel and the inner sidewall of the sealed pipe.
6. The melt switch device according to claim 5, wherein The inner thermal insulation material layer is any one of a glass fiber layer, an asbestos layer, a rock wool layer, a silicate layer and a carbon felt, or at least two of them combined in any order.
7. The melt switch device according to claim 1, wherein The outer thermal insulation material layer is any one of a glass fiber layer, an asbestos layer, a rock wool layer, a silicate layer and a carbon felt, or at least two of them combined in any order.
8. The melt switch device according to claim 1, wherein The sealed pipe is a non-magnetic sealed steel pipe.
9. The melt switch device according to claim 1, wherein A power supply is connected to the water-cooled induction coil.
10. The melt switch device according to claim 1, wherein The conductive refractory material channel is a graphite channel.