CN211204927U - Motor cooling system of pit furnace - Google Patents
Motor cooling system of pit furnace Download PDFInfo
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- CN211204927U CN211204927U CN201921890987.3U CN201921890987U CN211204927U CN 211204927 U CN211204927 U CN 211204927U CN 201921890987 U CN201921890987 U CN 201921890987U CN 211204927 U CN211204927 U CN 211204927U
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- cooling water
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- cooling
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Abstract
The utility model provides a motor cooling system of a pit furnace, which comprises a cooling water circulation system, wherein the cooling water circulation system comprises a cooling water conveying pipeline which is communicated with a cooling water inlet of the pit furnace, and a nitrogen vaporization system which comprises a vaporizer, the cooling water circulation system also comprises a cooling water tank, and the vaporizer is immersed in the cooling water tank; the water outlet of the cooling water tank is connected with a cooling water conveying pipeline, and the water inlet of the cooling water tank is communicated with a cooling water outlet after heat exchange in the well type furnace; the auxiliary vaporizer is connected with the vaporizer in parallel, inlets of the auxiliary vaporizer and the vaporizer are respectively connected with a liquid nitrogen conveying pipeline through valves, and outlets of the auxiliary vaporizer and the vaporizer are respectively connected with a nitrogen conveying pipeline through valves. This patent is direct with the direct submergence of vaporizer in cooling water tank, realizes the cooling of the interior water of cooling water tank through liquid nitrogen vaporization heat absorption, replaces the supply of the part cooling water of cooling tower realization pit furnace.
Description
Technical Field
The utility model relates to the technical field of machinery, concretely relates to pit furnace.
Background
Shaft furnaces are devices for the thermal treatment of metals.
At present, nitrogen is continuously conveyed in a well type furnace and is generated after liquid nitrogen passes through a vaporizer, heat is continuously released during the work of the vaporizer, and the outlet end of the vaporizer has condensed water, so that if the vaporizer works for a long time, thin ice is deposited on the outlet end seriously, the working effect of the vaporizer is influenced, and the vaporization rate is influenced.
And the working parts such as the motor in the pit furnace need to convey cooling water, and usually a cooling water circulation system is needed to cool the inside of the pit furnace, wherein the cooling water circulation system comprises a cooling water conveying pipeline for conveying cooling water into the pit furnace, the source of the cooling water conveying pipeline is usually generated by adopting a cooling tower, and the energy consumption of the cooling tower is high.
The existing vaporizer and the motor cooling system work independently, energy waste is easily caused, the existing vaporizer and the motor cooling system are arranged independently, the occupied size is large, and a device for combining the vaporizer and a cooling water circulation system is not available at present.
SUMMERY OF THE UTILITY MODEL
Problem to prior art exists, the utility model provides a motor cooling system of pit furnace to solve current vaporizer and cooling water circulating system and be two sets of independent works, and the exit end of current vaporizer has the technical problem that thin ice influences vaporization effect.
The technical scheme of the utility model is that: the motor cooling system of the shaft furnace comprises a cooling water circulation system, wherein the cooling water circulation system comprises a cooling water conveying pipeline which is communicated with a cooling water inlet of the shaft furnace;
the cooling water circulation system further comprises a cooling water tank, and the vaporizer is immersed in the cooling water tank;
the water outlet of the cooling water tank is connected with the cooling water conveying pipeline, and the water inlet of the cooling water tank is communicated with the cooling water outlet after heat exchange in the shaft furnace;
the auxiliary vaporizer is connected with the vaporizer in parallel, the auxiliary vaporizer is connected with the inlet of the vaporizer through a valve respectively and is connected with the liquid nitrogen conveying pipeline, and the auxiliary vaporizer is connected with the outlet of the vaporizer through a valve respectively and is connected with the nitrogen conveying pipeline.
This patent has reduced the use of cooling tower, and direct replacement cooling tower, the effective control of the whole volume of being convenient for, direct with the direct submergence of vaporizer in coolant tank, through the cooling of liquid nitrogen vaporization heat absorption realization coolant tank water, substitute the supply of the part cooling water that the cooling tower realized the pit furnace, simultaneously, also can avoid the outward appearance of vaporizer to freeze the problem that has thin ice, improved the vaporization rate and the life of vaporizer. In addition, through the arrangement of the auxiliary vaporizer, the problem that the water surface of the cooling water tank is frozen in the heat absorption process of the vaporizer is avoided. When the temperature in the cooling water tank is lower than a set value (such as 10 ℃) or the vaporizer works for a certain time (such as 4 hours), the vaporization capacity of the vaporizer is reduced, liquid nitrogen is not conveyed into the vaporizer, the auxiliary vaporizer works, and the liquid nitrogen is used for generating nitrogen through the auxiliary vaporizer. After working for about 2 hours, the liquid nitrogen is switched back to the vaporizer to continue to absorb heat by vaporization of the liquid nitrogen.
Further preferably, a temperature sensor is installed in the cooling water tank. The real-time detection is convenient. The problem of freezing of the water surface of the cooling water tank is avoided.
Further preferably, the cooling water circulation system comprises a hot water tank, and an outlet of the hot water tank is communicated with an inlet of the cooling water tank through a circulating water pump;
the inlet of the hot water tank is communicated with the cooling water tank through a circulating pipeline;
and a temperature sensor is arranged in the hot water tank.
This patent is through the setting of hot-water tank, is convenient for realize in the leading-in cooling water tank of hot water circulation, avoids the cooling water tank temperature to hang down and the production of the problem of freezing excessively.
Further preferably, the hot water tank and the circulating water pump are sequentially connected between the water inlet of the cooling water tank and the cooling water outlet of the pit furnace.
The synchronous driving of the two water bodies of the circulating pipeline and the cooling water outlet of the pit furnace is realized conveniently by a single circulating water pump.
Further preferably, the auxiliary vaporizer is installed above the cooling water tank.
The auxiliary vaporizer can be used for condensing water in the air into condensed water and directly dripping the condensed water into the cooling water tank, so that the occupied area can be conveniently controlled, and the water can be collected.
Further preferably, a bracket for supporting and fixing the auxiliary vaporizer is mounted on a side wall of the cooling water tank.
The installation of the auxiliary carburetor is convenient.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
In the figure: 1 is an auxiliary vaporizer, 2 is a vaporizer, 3 is a shaft furnace, 4 is a cooling water tank, 5 is a circulating water pump, and 6 is a hot water tank.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, in embodiment 1, the motor cooling system of the shaft furnace includes a nitrogen vaporization system, and the nitrogen vaporization system includes a liquid nitrogen delivery pipeline, a vaporizer 2, and a nitrogen delivery pipeline sequentially connected along a flow guiding direction. The nitrogen conveying pipeline is connected with a nitrogen inlet of the pit furnace.
The cooling water circulation system also comprises a cooling water circulation system, the cooling water circulation system comprises a cooling water conveying pipeline, the cooling water conveying pipeline is communicated with a cooling water inlet of the shaft furnace, the cooling water circulation system also comprises a cooling water tank 4, and the vaporizer 2 is immersed in the cooling water tank 4; the water outlet of the cooling water tank 4 is communicated with a cooling water conveying pipeline, and the water inlet of the cooling water tank 4 is communicated with a cooling water outlet after heat exchange in the shaft furnace 3.
The device is characterized by further comprising an auxiliary vaporizer 1, wherein the auxiliary vaporizer 1 and the vaporizer 2 are arranged in parallel, inlets of the auxiliary vaporizer 1 and the vaporizer 2 are respectively connected with a liquid nitrogen conveying pipeline through valves, and outlets of the auxiliary vaporizer 1 and the vaporizer 2 are respectively connected with a nitrogen conveying pipeline through valves. This patent direct replacement need not the cooling tower, directly with the direct submergence of vaporizer 2 in cooling water tank 4, through the cooling of the interior water of liquid nitrogen vaporization heat absorption realization cooling water tank 4, realizes the supply of well furnace 3's part cooling water, simultaneously, also can avoid the exit end of vaporizer 2 to freeze the problem that has thin ice, has improved the vaporization rate and the life of vaporizer 2. In addition, the auxiliary carburetor 1 avoids the problem that the water surface of the cooling water tank 4 freezes in the heat absorption process of the carburetor 2. When the temperature in the cooling water tank 4 is lower than a set value (such as 10 ℃) or the vaporizer 2 works for a certain time (such as 4 hours), the vaporizer 2 stops working, liquid nitrogen is not conveyed into the vaporizer 2, the auxiliary vaporizer 1 works, and the liquid nitrogen is used for generating nitrogen through the auxiliary vaporizer 1. After working for about 2 hours, the liquid nitrogen is switched back to the vaporizer 2 to continue to absorb heat by vaporization of the liquid nitrogen.
A temperature sensor is installed in the cooling water tank 4. The real-time detection is convenient. The problem of freezing of the water surface of the cooling water tank 4 is avoided.
The auxiliary vaporizer 1 is installed above the cooling water tank 4. The floor area is convenient to control, and meanwhile, the condensed water condensed from the moisture in the air by the outlet of the auxiliary vaporizer 1 can directly drop into the cooling water tank 4, so that the water is collected. A bracket for supporting and fixing the auxiliary vaporizer 1 is installed on the side wall of the cooling water tank 4. Facilitating the installation of the auxiliary carburettor 1.
The working principle is as follows: in the initial working state, the vaporizer 2 works, the cooling water tank 4 is cooled, and when the temperature of the cooling water tank 4 is lower than 15 ℃, the auxiliary vaporizer 1 works and the vaporizer 2 does not work. When the temperature in the cooling water tank 4 exceeds 40 deg., the vaporizer 2 is operated and the auxiliary vaporizer 1 is not operated.
The work of the vaporizer 2 and the auxiliary vaporizer 1 is switched, and the control of the flow guide direction is realized through a valve, so that the work of the vaporizer and the auxiliary vaporizer is switched. Valves are arranged at the water inlet and the water outlet of the cooling water tank.
When the vaporizer works, a valve at the inlet of the vaporizer is opened and communicated with the liquid nitrogen conveying pipeline, and a valve at the outlet of the vaporizer is opened and communicated with the nitrogen conveying pipeline.
When the vaporizer does not work, the valve of the inlet of the vaporizer is closed, the inlet of the vaporizer is not communicated with the liquid nitrogen conveying pipeline, the valve of the outlet of the vaporizer is closed, and the outlet of the vaporizer is not communicated with the nitrogen conveying pipeline.
When the auxiliary vaporizer works, a valve at the inlet of the auxiliary vaporizer is opened, the inlet of the auxiliary vaporizer is communicated with the liquid nitrogen conveying pipeline, a valve at the outlet of the auxiliary vaporizer is opened, and the outlet of the auxiliary vaporizer is connected with the nitrogen conveying pipeline for communication.
When the auxiliary vaporizer does not work, the valve of the inlet of the auxiliary vaporizer is closed, the inlet of the auxiliary vaporizer is not communicated with the liquid nitrogen conveying pipeline, the valve of the outlet of the auxiliary vaporizer is closed, and the outlet of the auxiliary vaporizer is connected with the nitrogen conveying pipeline and is not communicated.
Referring to fig. 2, in embodiment 2, on the basis of embodiment 1, the cooling water circulation system includes a hot water tank 6, an outlet of the hot water tank 6 is communicated with an inlet of the cooling water tank 4 through a circulating water pump 5; the inlet of the hot water tank 6 is communicated with the cooling water tank 4 through a circulating pipeline; a temperature sensor is arranged in the hot water tank 6. This patent is through the setting of hot-water tank 6, is convenient for realize in the leading-in cooling water tank 4 of hot water circulation, avoids cooling water tank 4 temperature to hang down and the production of icing problem excessively. A hot water tank 6 and a circulating water pump 5 are sequentially arranged between the water inlet of the cooling water tank 4 and the cooling water outlet of the shaft furnace 3. The single circulating water pump 5 is convenient to realize, and the synchronous driving of the circulating pipeline and the two water bodies at the cooling water outlet of the pit furnace 3 is realized. The inlet of the hot water tank 6 is provided with a valve. The outlet of the hot water tank can also be provided with a valve.
The working principle is as follows: under the initial operating condition, vaporizer 2 works, and cooling water tank 4 cools down, and when cooling water tank 4 temperature was less than 15 ℃, supplementary vaporizer 1 worked, and vaporizer 2 is out of work, and at this moment, circulating water pump 5 is with leading-in cooling water tank 4 of the water circulation in the hot-water tank 6, realizes the adjustment of the temperature in cooling water tank 4. At this time, the valves of the outlet of the hot water tank and the inlet of the cooling water tank are opened. When the temperature in the cooling water tank 4 exceeds 40 degrees, the vaporizer 2 is operated, the auxiliary vaporizer 1 is not operated, and the circulating water pump 5 stops circularly guiding the water in the hot water tank 6 into the cooling water tank 4. At this time, the valves of the outlet of the hot water tank and the inlet of the cooling water tank are closed.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The motor cooling system of the shaft furnace comprises a cooling water circulation system, wherein the cooling water circulation system comprises a cooling water conveying pipeline which is communicated with a cooling water inlet of the shaft furnace;
the cooling water circulation system further comprises a cooling water tank, and the vaporizer is immersed in the cooling water tank;
the water outlet of the cooling water tank is connected with the cooling water conveying pipeline, and the water inlet of the cooling water tank is communicated with the cooling water outlet after heat exchange in the shaft furnace;
the auxiliary vaporizer is connected with the vaporizer in parallel, the auxiliary vaporizer is connected with the inlet of the vaporizer through a valve respectively and is connected with the liquid nitrogen conveying pipeline, and the auxiliary vaporizer is connected with the outlet of the vaporizer through a valve respectively and is connected with the nitrogen conveying pipeline.
2. The motor cooling system of a shaft furnace as claimed in claim 1, characterized in that: and a temperature sensor is arranged in the cooling water tank.
3. The motor cooling system of a shaft furnace as claimed in claim 1, characterized in that: the cooling water circulation system comprises a hot water tank, and an outlet of the hot water tank is communicated with an inlet of the cooling water tank through a circulating water pump;
the inlet of the hot water tank is communicated with the cooling water tank through a circulating pipeline;
and a temperature sensor is arranged in the hot water tank.
4. The motor cooling system of a shaft furnace as claimed in claim 3, characterized in that: the hot water tank and the circulating water pump are sequentially connected between the water inlet of the cooling water tank and the cooling water outlet of the pit furnace.
5. The motor cooling system of a shaft furnace as claimed in claim 1, characterized in that: the auxiliary vaporizer is installed above the cooling water tank.
6. The motor cooling system of a shaft furnace as claimed in claim 5, characterized in that: and a bracket for supporting and fixing the auxiliary vaporizer is arranged on the side wall of the cooling water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921890987.3U CN211204927U (en) | 2019-11-05 | 2019-11-05 | Motor cooling system of pit furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921890987.3U CN211204927U (en) | 2019-11-05 | 2019-11-05 | Motor cooling system of pit furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211204927U true CN211204927U (en) | 2020-08-07 |
Family
ID=71856696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921890987.3U Active CN211204927U (en) | 2019-11-05 | 2019-11-05 | Motor cooling system of pit furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211204927U (en) |
-
2019
- 2019-11-05 CN CN201921890987.3U patent/CN211204927U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 200949 No. 1836 Luoning Road, Luojing Town, Baoshan District, Shanghai Patentee after: Shanghai Yineixi Machinery Manufacturing Co.,Ltd. Address before: 200949 No. 1015, xinchuansha Road, Luojing Town, Baoshan District, Shanghai Patentee before: YINEIXI MACHINERY MANUFACTURING CO.,LTD. |
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| CP03 | Change of name, title or address |