CN209802034U - Nitrogen replacement drying oven heating system - Google Patents
Nitrogen replacement drying oven heating system Download PDFInfo
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- CN209802034U CN209802034U CN201920265546.8U CN201920265546U CN209802034U CN 209802034 U CN209802034 U CN 209802034U CN 201920265546 U CN201920265546 U CN 201920265546U CN 209802034 U CN209802034 U CN 209802034U
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- electric heating
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- nitrogen gas
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Abstract
The utility model discloses a nitrogen gas replacement drying cabinet heating system relates to the drying equipment field. The heating system of the nitrogen replacement drying box comprises a first change-over switch, a first electric heating pipe and a second electric heating pipe, wherein the first electric heating pipe is arranged in the nitrogen replacement drying box, the second electric heating pipe is arranged on the outer wall of the nitrogen replacement drying box, the first electric heating pipe and the second electric heating pipe are connected in parallel to a power supply loop, and the first change-over switch is arranged in the power supply loop and is respectively connected in series with the first electric heating pipe and the second electric heating pipe. The utility model discloses a nitrogen gas replacement drying cabinet heating system can reduce the incasement temperature fluctuation, improves the stability of nitrogen gas replacement drying cabinet.
Description
Technical Field
The utility model belongs to the technical field of drying equipment and specifically relates to a nitrogen gas replacement drying cabinet heating system is related to.
Background
And the nitrogen replacement drying box performs nitrogen replacement through vacuumizing, and then is heated to finish equipment operation. When equipment runs, because the equipment needs to be vacuumized, the box body wall bears larger pressure, so the plate of the box body wall is thicker, and the over-thick plate absorbs heat in a large amount, so that the temperature in the nitrogen replacement drying box is slowly increased, the heating is uneven, the temperature in the box fluctuates, and further the stability of the equipment is poor.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a heating system for a nitrogen replacement drying oven to improve the above problems.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The utility model provides a nitrogen gas replacement drying cabinet heating system for heat nitrogen gas replacement drying cabinet, including first change over switch, first electric heating pipe and second electric heating pipe, first electric heating pipe set up in the nitrogen gas replacement drying cabinet, the second electric heating pipe sets up in the outer wall of nitrogen gas replacement drying cabinet, first electric heating pipe with second electric heating pipe connects in parallel in power supply loop, first change over switch set up in power supply loop and respectively with first electric heating pipe with second electric heating pipe establishes ties.
Optionally, a nitrogen gas inlet pipe is arranged in the nitrogen gas replacement drying box, the heating system of the nitrogen gas replacement drying box further comprises a third electric heating pipe, the third electric heating pipe corresponds to the nitrogen gas inlet pipe, and the first electric heating pipe, the second electric heating pipe and the third electric heating pipe are connected in parallel to the power supply loop.
Optionally, the third electric heating pipe is arranged in the nitrogen gas inlet pipe or on the outer wall of the nitrogen gas inlet pipe.
Optionally, the heating system of the nitrogen replacement drying oven further comprises a second switch, and the second switch is connected in series with the first electric heating pipe and then connected to the power supply loop.
Optionally, the heating system of the nitrogen replacement drying oven further comprises a third switch, and the third switch is connected in series with the second electric heating pipe and then connected to the power supply loop.
Optionally, the heating system of the nitrogen replacement drying oven further comprises a fourth switch, and the fourth switch is connected in series with the third electric heating pipe and then connected to the power supply loop.
Optionally, the power supply loop is a three-phase power supply circuit, the number of the first electric heating pipes is three, and the three groups of the first electric heating pipes are respectively connected with three live wires of the three-phase power supply circuit in a one-to-one correspondence manner.
Optionally, the power supply loop is a three-phase power supply circuit, the number of the second electric heating pipes is three, and the three groups of the second electric heating pipes are respectively connected with three live wires of the three-phase power supply circuit in a one-to-one correspondence manner.
Optionally, each group of the second electric heating pipes includes a plurality of electric heating pipes, and all the electric heating pipes included in the three groups of the second electric heating pipes are uniformly arranged on the outer wall of the nitrogen gas replacement drying oven.
Compared with the prior art, the beneficial effects of the utility model reside in that:
The utility model provides a nitrogen gas replacement drying cabinet heating system all sets up electric heating pipe through in nitrogen gas replacement drying cabinet with the outer wall, not only can improve the heating rate of nitrogen gas replacement drying cabinet, can also make the heating more even, reduces the incasement temperature fluctuation, improves the stability of nitrogen gas replacement drying cabinet.
Drawings
Fig. 1 is a schematic structural view of a heating system of a nitrogen displacement drying oven according to a preferred embodiment of the present invention.
Fig. 2 is a schematic structural diagram of another heating system of a nitrogen displacement drying oven according to a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
furthermore, the terms "parallel," "perpendicular," and the like do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel relative to "perpendicular," and does not mean that the structures are necessarily perfectly parallel, but may be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, an embodiment of the present invention provides a heating system for a nitrogen displacement drying oven, which is used for heating the nitrogen displacement drying oven, and the heating system for the nitrogen displacement drying oven includes a first switch Q1, a first electric heating tube H1, and a second electric heating tube H2. The first electric heating pipe H1 is arranged in the nitrogen replacement drying box, the second electric heating pipe H2 is arranged on the outer wall of the nitrogen replacement drying box, the first electric heating pipe H1 and the second electric heating pipe H2 are connected in parallel to a power supply loop, and the first switch Q1 is arranged on the power supply loop and is respectively connected in series with the first electric heating pipe H1 and the second electric heating pipe H2.
As shown in fig. 1, the power supply circuit adopts a three-phase power supply circuit, and the first changeover switch Q1 is arranged on a main circuit of the three-phase power supply circuit and is used for controlling the power on/off of the whole heating system of the nitrogen displacement drying box.
The first electric heating pipes H1 are used for heating the nitrogen replacement drying box, and because the power supply circuit adopts a three-phase power supply circuit, the number of the first electric heating pipes H1 is set into three groups, and the three groups of the first electric heating pipes H1 are respectively connected with three live wires of the three-phase power supply circuit in a one-to-one correspondence manner. Similarly, the number of the second electric heating tubes H2 is three, and the three groups of the second electric heating tubes H2 are respectively connected with three live wires of the three-phase power supply circuit in a one-to-one correspondence manner.
Further, for the outer wall even heating of realization to nitrogen gas replacement drying cabinet, every group second electric heating pipe H2 adopts a plurality of electric heating pipe to constitute, all electric heating pipes that three groups second electric heating pipe H2 contained evenly set up in the outer wall of establishing nitrogen gas replacement drying cabinet, so evenly distributed's electric heating pipe can realize even heating to the outer wall of nitrogen gas replacement drying cabinet, under the common cooperation with first electric heating pipe H1, the realization is to the inside even heating of nitrogen gas replacement drying cabinet, reduce the temperature fluctuation in the incasement, improve the stability of nitrogen gas replacement drying cabinet. Meanwhile, the heating rate of the nitrogen replacement drying box can be further increased due to the heat supplement of the second electric heating pipe H2 arranged on the outer wall of the nitrogen replacement drying box.
The embodiment of the utility model provides an in, nitrogen gas replacement drying cabinet carries out nitrogen gas replacement through the evacuation, sets up in it to be provided with the nitrogen gas intake pipe that is used for nitrogen gas to get into. Referring to fig. 2, when the nitrogen gas replacement drying oven is operated, the inside of the nitrogen gas replacement drying oven can reach a high temperature of more than 200 ℃, and when cold nitrogen gas enters the nitrogen gas replacement drying oven through the nitrogen gas inlet pipe for replacement, the temperature in the nitrogen gas replacement drying oven is severely fluctuated due to heat exchange. Therefore, the embodiment of the utility model provides a nitrogen gas replacement drying cabinet heating system still is provided with third electric heating pipe H3, and third electric heating pipe H3 sets up on the outer wall of nitrogen gas intake pipe, and just first electric heating pipe H1, second electric heating pipe H2 and third electric heating pipe H3 are parallelly connected in power supply loop. Meanwhile, the third electric heating pipe H3 is arranged to preheat cold nitrogen entering the nitrogen replacement drying box, so that the situation that the temperature in the nitrogen replacement drying box fluctuates violently when the cold nitrogen enters the high-temperature nitrogen replacement drying box is effectively avoided, and the stability of the nitrogen replacement drying box is further improved.
The embodiment of the utility model provides an in, third electric heating pipe H3 sets up and is used for preheating the cold nitrogen gas that gets into on the outer wall of nitrogen gas intake pipe. It is understood that in other embodiments, the third electric heating pipe H3 may be arranged in other ways as long as the preheating of the incoming cold nitrogen gas is realized. For example, a third electric-heating pipe H3 may also be provided in the nitrogen gas intake pipe.
Further, for the switching control to first electric-heating pipe H1, second electric-heating pipe H2 and third electric-heating pipe H3 of convenience, the embodiment of the utility model provides a nitrogen gas replacement drying cabinet heating system is still including second change over switch Q2, third change over switch Q3 and fourth change over switch Q4. The second switch Q2 and the first electric heating tube H1 are connected in series and then connected to the power supply loop, so as to facilitate description of the first loop for short for the second switch Q2 and the first electric heating tube H1 which are connected in series. The third switch Q3 and the second electric heating tube H2 are connected in series and then connected to the power supply loop, for convenience of description, the third switch Q3 and the second electric heating tube H2 after being connected in series are referred to as the second loop. The fourth switch Q4 and the third electric heating tube H3 are connected in series and then connected to the power supply loop, for convenience of description, the series connection of the fourth switch Q4 and the third electric heating tube H3 is referred to as the third loop for short. The first loop, the second loop and the third loop are arranged in the power supply loop in parallel. In this way, the first electric-heating tube H1, the second electric-heating tube H2 and the third electric-heating tube H3 can be switched and controlled very conveniently by the second switch Q2, the third switch Q3 and the fourth switch Q4.
To sum up, the embodiment of the utility model provides a nitrogen gas replacement drying cabinet heating system through set up evenly distributed's second electric heating pipe H2 at nitrogen gas replacement drying cabinet outer wall, can realize realizing the even heating to the outer wall of nitrogen gas replacement drying cabinet, when heating in the nitrogen gas replacement drying cabinet, avoids the box wall to lead to the incasement temperature fluctuation to heat inhomogeneous condition to take place owing to a large amount of endotherms, has improved the stability of nitrogen gas replacement drying cabinet. Meanwhile, the heating rate of the nitrogen replacement drying box can be further increased due to the heat supplement of the second electric heating pipe H2 arranged on the outer wall of the nitrogen replacement drying box. Secondly, set up third electric heating pipe H3 on the outer wall of nitrogen gas intake pipe, can preheat the cold nitrogen gas that gets into in the nitrogen gas replacement drying cabinet, lead to the condition emergence of the violent fluctuation of temperature in the nitrogen gas replacement drying cabinet when effectively avoiding cold nitrogen gas to get into in the nitrogen gas replacement drying cabinet of high temperature, further improve the stability of nitrogen gas replacement drying cabinet. In addition, the second change-over switch Q2, the third change-over switch Q3 and the fourth change-over switch Q4 are arranged, so that the first electric heating tube H1, the second electric heating tube H2 and the third electric heating tube H3 can be switched and controlled very conveniently.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a nitrogen gas replacement drying cabinet heating system for heat nitrogen gas replacement drying cabinet, its characterized in that, including first change over switch, first electric heating pipe and second electric heating pipe, first electric heating pipe set up in the nitrogen gas replacement drying cabinet, the second electric heating pipe sets up in the outer wall of nitrogen gas replacement drying cabinet, first electric heating pipe with second electric heating pipe connects in parallel in power supply loop, first change over switch set up in power supply loop and respectively with first electric heating pipe with second electric heating pipe establishes ties.
2. The heating system of claim 1, further comprising a third electric heating pipe, wherein a nitrogen inlet pipe is arranged in the nitrogen displacement drying oven, the third electric heating pipe is arranged corresponding to the nitrogen inlet pipe, and the first electric heating pipe, the second electric heating pipe and the third electric heating pipe are connected in parallel to a power supply loop.
3. The heating system of claim 2, wherein the third electric heating pipe is disposed in the nitrogen inlet pipe or on an outer wall of the nitrogen inlet pipe.
4. The heating system of claim 2, further comprising a second switch, wherein the second switch is connected in series with the first electric heating pipe and then connected to the power supply loop.
5. The heating system of claim 2, further comprising a third switch, wherein the third switch is connected in series with the second electric heating pipe and then connected to the power supply loop.
6. The heating system of claim 2, further comprising a fourth switch, wherein the fourth switch is connected in series with the third electric heating pipe and then connected to the power supply loop.
7. The heating system of claim 1, wherein the power supply circuit is a three-phase power supply circuit, the number of the first electric heating pipes is three, and the three groups of the first electric heating pipes are respectively connected with three live wires of the three-phase power supply circuit in a one-to-one correspondence manner.
8. The heating system of claim 1, wherein the power supply circuit is a three-phase power supply circuit, the number of the second heating pipes is three, and the three groups of the second heating pipes are respectively connected with three live wires of the three-phase power supply circuit in a one-to-one correspondence manner.
9. The heating system of claim 8, wherein each group of the second electric heating pipes comprises a plurality of electric heating pipes, and all the electric heating pipes included in the three groups of the second electric heating pipes are uniformly arranged on the outer wall of the nitrogen displacement drying oven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920265546.8U CN209802034U (en) | 2019-02-28 | 2019-02-28 | Nitrogen replacement drying oven heating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920265546.8U CN209802034U (en) | 2019-02-28 | 2019-02-28 | Nitrogen replacement drying oven heating system |
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| CN209802034U true CN209802034U (en) | 2019-12-17 |
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| CN201920265546.8U Active CN209802034U (en) | 2019-02-28 | 2019-02-28 | Nitrogen replacement drying oven heating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111516845A (en) * | 2020-04-07 | 2020-08-11 | 安庆安力船舶科技有限公司 | Two-stage control method based on marine fuel oil electric heater |
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2019
- 2019-02-28 CN CN201920265546.8U patent/CN209802034U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111516845A (en) * | 2020-04-07 | 2020-08-11 | 安庆安力船舶科技有限公司 | Two-stage control method based on marine fuel oil electric heater |
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Address after: 400000 Chongqing Yubei District economic and Technological Development Zone, C39 G, Kaiyuan. Patentee after: Chongqing Ya Matuo Science and Technology Ltd. Address before: 400000 Chongqing Nan'an District Economic and Technological Development Zone, C39 G, Kaiyuan. Patentee before: Chongqing Ya Matuo Science and Technology Ltd. |