WO2017161992A1 - Cooling system - Google Patents

Cooling system Download PDF

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Publication number
WO2017161992A1
WO2017161992A1 PCT/CN2017/074287 CN2017074287W WO2017161992A1 WO 2017161992 A1 WO2017161992 A1 WO 2017161992A1 CN 2017074287 W CN2017074287 W CN 2017074287W WO 2017161992 A1 WO2017161992 A1 WO 2017161992A1
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WO
WIPO (PCT)
Prior art keywords
refrigerant
tank
unit
cooling system
supply
Prior art date
Application number
PCT/CN2017/074287
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French (fr)
Chinese (zh)
Inventor
黎敏
邬传谷
杨晓华
陈希勇
陈学刚
王书晓
王兴斌
曹珂菲
Original Assignee
中国恩菲工程技术有限公司
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Application filed by 中国恩菲工程技术有限公司 filed Critical 中国恩菲工程技术有限公司
Priority to RU2018134315A priority Critical patent/RU2703664C1/en
Publication of WO2017161992A1 publication Critical patent/WO2017161992A1/en
Priority to ZA2018/06330A priority patent/ZA201806330B/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00Casings; Linings; Walls; Roofs
    • F27D1/12Casings; Linings; Walls; Roofs incorporating cooling arrangements

Definitions

  • the present invention relates to the field of metallurgy and, in particular, to a cooling system.
  • the lining of the high temperature metallurgical furnace needs to be cooled to keep the furnace lining at a lower temperature, which is beneficial to slowing the corrosion of the furnace body and thereby prolonging the life of the furnace body.
  • positive pressure cooling is used for cooling.
  • Positive pressure cooling means that the water pressure in the cooling water system from the inlet end to the outlet end is always higher than one atmosphere. In this environment, the cooling water pressure and flow rate are adjusted to take away the heat of the surface of the cooled object in time.
  • Positive pressure cooling has the characteristics of simple operation, easy adjustment of water pressure and water volume, and obvious cooling effect, but it also has shortcomings. If the flow resistance of the cooling water changes due to excessive passage angle or air residual in the pipeline, and the liquid flow is affected, and the cooling water jacket is used for cooling, if the cooling water jacket is damaged, a large amount of cooling water may overflow. This in turn causes serious safety production accidents.
  • a primary object of the present invention is to provide a cooling system that solves the problems of large water flow resistance and large safety hazards when using positive pressure cooling.
  • an aspect of the present invention provides a cooling system including: a refrigerant supply unit; a cooling unit for cooling the object to be cooled, communicating with the refrigerant supply unit through the refrigerant input pipe; and a liquid sealing groove;
  • the refrigerant recovery unit comprises a refrigerant recovery pipe group and a vacuum pump group, and the refrigerant recovery pipe group comprises a refrigerant recovery branch pipe, a vacuum pipe and a siphon pipe which are connected through the same port, the vacuum pump group is connected with the vacuum pipe, the refrigerant recovery branch pipe is connected with the cooling unit, and the siphon pipe and the liquid are connected.
  • the sealing groove is connected, and the horizontal surface of the refrigerant supply unit is higher than the horizontal plane where the liquid sealing groove is located.
  • the refrigerant supply unit includes: a heat exchange device; a refrigerant storage tank connected to the heat exchange device; and a refrigerant supply tank having a port connected to the refrigerant storage tank and a port connected to the cooling unit.
  • the refrigerant supply unit further includes a refrigerant buffer tank, and the refrigerant buffer tank is disposed on the flow path between the refrigerant supply tank and the refrigerant storage tank.
  • a first overflow plate is disposed in the refrigerant supply tank, and the first overflow plate divides the refrigerant supply tank into a first supply grid and a second supply grid, and the height of the first overflow panel is lower than the side of the refrigerant supply tank The height of the wall, the refrigerant storage tank is connected to the first supply grid, and the refrigerant inlet pipe is connected to the second supply grid.
  • a second overflow plate is disposed in the refrigerant supply tank, and the second overflow plate divides the second supply grid into a first sub-supply grid and a second sub-supply grid, and the second overflow panel has a lower height than the refrigerant The height of the side wall of the supply tank, the refrigerant inlet pipe is connected to the first sub-supply grid, and the liquid seal tank is connected to the second sub-supply grid.
  • the cooling system further includes a refrigerant recovery unit, and the refrigerant recovery unit is connected to the liquid seal tank.
  • the liquid sealing tank is provided with two third overflow plates, and the third overflow plate divides the liquid sealing tank into a first liquid sealing compartment, a second liquid sealing compartment and a third liquid sealing compartment, and a third overflowing panel
  • the height is lower than the height of the side wall of the liquid sealing tank
  • the second sub-supply grid is connected to the first liquid sealing grid
  • the siphon tube is connected to the second liquid sealing grid
  • the refrigerant recovery unit is connected to the third liquid sealing grid.
  • a valve is provided on the vacuum tube.
  • the refrigerant supply unit further includes a first refrigerant transfer pump, and the first refrigerant transfer pump is disposed on a flow path between the refrigerant storage tank of the refrigerant storage tank and the refrigerant buffer tank.
  • the refrigerant storage tank is connected to the refrigerant recovery unit, and the cooling system further includes a second refrigerant delivery pump, and the second refrigerant delivery pump is disposed on the flow path between the refrigerant storage tank and the refrigerant recovery unit.
  • the cooling unit includes a water jacket, and the water jacket is connected to the refrigerant supply unit through the refrigerant input pipe.
  • the vacuum pump group is turned on to discharge the air in the refrigerant input pipe, the refrigerant recovery branch pipe, the vacuum pipe and the siphon pipe, and the refrigerant in the refrigerant supply unit and the liquid sealing tank respectively enters the refrigerant input pipe and the siphon pipe under the action of atmospheric pressure, when The siphon phenomenon is formed when the liquid level in the refrigerant inlet pipe and the siphon pipe rises to a certain height and the two reach a certain height difference. Due to the certain height difference between the refrigerant supply unit and the liquid sealing tank, the cooling water in the refrigerant supply unit can enter the liquid sealing tank by itself after overcoming the resistance of the pipeline.
  • the cooling system not only helps to reduce the flow resistance during the cooling process, but also helps to reduce safety hazards.
  • FIG. 1 is a schematic view showing the structure of a cooling system provided by an exemplary embodiment of the present invention.
  • the existing positive pressure cooling has a problem of large water flow resistance and large safety hazard.
  • the present invention provides a cooling system, as shown in FIG. 1, the cooling system includes: a refrigerant supply unit 10, a cooling unit 20 for cooling the object to be cooled, a liquid sealing tank 30 and a refrigerant recovery unit 40.
  • the cooling unit 20 and the refrigerant supply unit 10 are in communication via a refrigerant input pipe 21;
  • the refrigerant recovery unit 40 includes a refrigerant recovery pipe group 41 and a vacuum pump group 42.
  • the refrigerant recovery pipe group 41 includes a refrigerant recovery branch pipe 411, a vacuum pipe 412, and a siphon pipe 413 which are connected through the same port.
  • the vacuum pump group 42 is connected to the vacuum pipe 412, the refrigerant recovery branch pipe 411 is connected to the cooling unit 20, and the siphon pipe 413 is connected to the liquid sealing groove 30.
  • the horizontal plane of the refrigerant supply unit 10 is higher than the horizontal plane of the liquid seal tank 30.
  • the vacuum pump unit 42 When the cooling object is required to be cooled, the vacuum pump unit 42 is turned on to discharge the air in the refrigerant inlet pipe 21, the refrigerant recovery pipe 411, the vacuum pipe 412, and the siphon pipe 413, and the refrigerant in the refrigerant supply unit 10 and the liquid sealing tank 30 is under atmospheric pressure.
  • the refrigerant input pipe 21 and the siphon pipe 413 are respectively entered, and when the liquid level in the refrigerant inlet pipe 21 and the siphon pipe 413 rises to a certain height and the two reach a certain height difference, a siphon phenomenon is formed.
  • the cooling water in the refrigerant supply unit 10 can enter the liquid sealing tank 30 by itself after overcoming the resistance of the piping.
  • the entire cooling system is under negative pressure, even if the cooling unit 20 has a cracking phenomenon, the cold coal will not or rarely have an overflow phenomenon, thereby facilitating the safety production accident caused by the refrigerant overflow. It can be seen that the cooling system provided by the invention not only helps to reduce the flow resistance during the cooling process, but also helps to reduce safety hazards.
  • the vacuum pump group 42 can determine whether it should be in an open or closed state according to the degree of vacuum in the whole set of cooling system, and the water jacket leakage condition can also be judged according to the flow rate of the refrigerant recovery branch pipe 411 and the start and stop working frequency of the vacuuming unit.
  • Refrigerants include, but are not limited to, water. The use of water as a refrigerant helps to reduce the cooling cost, while water as a refrigerant also has a higher cooling efficiency.
  • the refrigerant supply unit 10 includes a heat exchange device 11, a refrigerant storage tank 12, and a refrigerant supply tank 13, and the refrigerant storage tank 12 is connected to the heat exchange device 11, and the refrigerant supply tank 13 has The port connected to the refrigerant storage tank 12 also has a port connected to the cooling unit 20.
  • the refrigerant supply unit 10 further includes a refrigerant buffer tank 50 disposed on a flow path between the refrigerant supply tank 13 and the refrigerant storage tank 12.
  • the formation of the siphon phenomenon requires a certain degree of vacuum on the refrigerant recovery line and the siphon tube 413.
  • the page fluctuation in the refrigerant process tank may cause the sealing property of the refrigerant feed pipe 21 to deteriorate to impair the persistence of the siphon phenomenon.
  • Providing the refrigerant buffer tank 50 between the refrigerant supply tank 13 and the refrigerant storage tank 12 is advantageous for reducing the fluctuation of the liquid surface in the refrigerant supply tank 13, thereby facilitating the stability of the siphon phenomenon.
  • a first overflow plate 131 is disposed in the refrigerant supply tank 13, and the height of the first overflow plate 131 is lower than the height of the side wall of the refrigerant supply tank 13.
  • the first overflow plate 131 divides the refrigerant supply tank 13 into a first supply grid and a second supply grid.
  • the refrigerant storage tank 12 is connected to the first supply grid, and the refrigerant feed pipe 21 is connected to the second supply grid.
  • the provision of the first overflow plate 131 is advantageous for further reducing the fluctuation of the liquid level in the refrigerant supply unit 10, thereby facilitating further improvement of the stability of the siphon phenomenon.
  • a second overflow plate 132 is disposed in the refrigerant supply tank 13, and the height of the second overflow plate 132 is lower than the height of the side wall of the refrigerant supply tank 13.
  • the second overflow plate 132 divides the second supply grid into a first sub-supply grid and a second sub-supply grid, the refrigerant input pipe 21 is connected to the first sub-supply grid, and the liquid seal tank 30 and the second sub-supply grid Connected.
  • the provision of the second overflow plate 132 to separate the second supply grid into the first sub-supply grid and the second sub-supply grid facilitates recovery of excess refrigerant in the refrigerant supply tank 13 while ensuring the stability of the siphon phenomenon.
  • the cooling system further includes a refrigerant recovery unit 40 that is coupled to the liquid seal tank 30. It is advantageous to recover the refrigerant in the liquid sealing tank 30.
  • the liquid sealing tank 30 is provided with two third overflow plates 31, and the height of the third overflow plate 31 is lower than the height of the side walls of the liquid sealing groove 30.
  • the third overflow plate 31 divides the liquid sealing tank 30 into a first liquid sealing compartment, a second liquid sealing compartment and a third liquid sealing compartment, and the second sub-supply grid is connected to the first liquid sealing compartment, the siphon 413 and the second liquid The seals are connected, and the refrigerant recovery unit 40 is connected to the third liquid seal.
  • the siphon phenomenon needs to maintain the degree of vacuum in the refrigerant recovery branch pipe 411 and the siphon pipe 413 at the same time, so that the provision of the two third overflow plates 31 is advantageous for reducing the fluctuation of the liquid level in the liquid sealing tank 30, thereby improving the refrigerant recovery.
  • the tightness in the tube and the siphon tube 413 contributes to the stability of the siphon phenomenon.
  • the refrigerant storage tank 12 is in communication with the refrigerant recovery unit 40.
  • the cooling system further includes a second refrigerant delivery passage disposed on the flow path between the refrigerant storage tank 12 and the refrigerant recovery unit 40. Pump 70. The communication of the refrigerant storage tank 12 with the refrigerant recovery unit 40 facilitates recycling of the recovered refrigerant.
  • a vacuum tube 412 is provided with a valve. Providing a valve on the vacuum tube facilitates further adjustment of the vacuum in the cooling system as needed.
  • the refrigerant supply unit 10 further includes a first refrigerant delivery pump 60 disposed on a flow path between the refrigerant storage tank and the refrigerant buffer tank 50.
  • the first refrigerant transfer pump 60 is provided to be able to supply power for the refrigerant to flow from the refrigerant storage tank 12 to the refrigerant buffer tank 50.
  • the configuration of the cooling unit 20 is not limited as long as it can function as a cooling.
  • the cooling unit 20 includes a water jacket that communicates with the refrigerant supply unit 10 through a refrigerant feed pipe 21.
  • the water jacket is not only simple in structure, convenient in use, but also has the characteristics of low cost and easy replacement.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

A cooling system comprises a refrigerant supply unit (10), a cooling unit (20) used for cooling a to-be-cooled object, a liquid seal groove (30) and a refrigerant recycling unit (40). The cooling unit (20) communicates with the refrigerant supply unit (10) through a refrigerant input pipe (21). The refrigerant recycling unit (40) comprises a refrigerant recycling pipe set (41) and a vacuum pump set (42). The refrigerant recycling pipe set (41) comprises a refrigerant recycling branch pipe (411), a vacuum pipe (412) and a siphon (413), all of which communicate with one another through the same port. The vacuum pump set (42) is connected with the vacuum pipe (412). The refrigerant recycling branch pipe (411) communicates with the cooling unit (20). The siphon (413) communicates with the liquid seal groove (30). The horizontal plane where the refrigerant supply unit (10) is located is higher than the horizontal plane where the liquid seal groove (30) is located. Due to the fact that a certain height difference exists between the refrigerant supply unit (10) and the liquid seal groove (30), cooling water in the refrigerant supply unit (10) can overcome resistance of a pipeline and enters the liquid seal groove (30) by itself. Due to the fact that the whole cooling system is in negative pressure, when the cooling unit is fractured, a refrigerant cannot overflow or hardly overflows, and accordingly production accidents caused by refrigerant overflow can be better reduced.

Description

冷却系统cooling system 技术领域Technical field
本发明涉及冶金领域,具体而言,涉及一种冷却系统。The present invention relates to the field of metallurgy and, in particular, to a cooling system.
背景技术Background technique
冶金过程中需要对高温冶金炉的内衬进行冷却以使炉体内衬保持较低的温度,这有利于减缓炉体侵蚀,从而达到延长炉体寿命的目的。通常情况下,采用正压冷却方式进行冷却。正压冷却就是冷却水系统从进水端到出水端管道中水压始终保持高于一个大气压,在这种环境下进行冷却水压力与流量调节达到及时带走被冷却物体表面热量的目的。In the metallurgical process, the lining of the high temperature metallurgical furnace needs to be cooled to keep the furnace lining at a lower temperature, which is beneficial to slowing the corrosion of the furnace body and thereby prolonging the life of the furnace body. Normally, positive pressure cooling is used for cooling. Positive pressure cooling means that the water pressure in the cooling water system from the inlet end to the outlet end is always higher than one atmosphere. In this environment, the cooling water pressure and flow rate are adjusted to take away the heat of the surface of the cooled object in time.
正压冷却具有操作简便、水压和水量易于调节和冷却效果明显等特点,但同时也存在不足之处。如由于走管角度过大或管路内有空气残留等原因造成冷却水的流阻变化而影响液体流动,同时使用正压冷却方式进行冷却时,如果冷却水套破损会导致大量冷却水外溢,进而造成严重的安全生产事故。Positive pressure cooling has the characteristics of simple operation, easy adjustment of water pressure and water volume, and obvious cooling effect, but it also has shortcomings. If the flow resistance of the cooling water changes due to excessive passage angle or air residual in the pipeline, and the liquid flow is affected, and the cooling water jacket is used for cooling, if the cooling water jacket is damaged, a large amount of cooling water may overflow. This in turn causes serious safety production accidents.
发明内容Summary of the invention
本发明的主要目的在于提供一种冷却系统,以解决使用正压冷却时存在的水流阻力大和安全隐患大的问题。SUMMARY OF THE INVENTION A primary object of the present invention is to provide a cooling system that solves the problems of large water flow resistance and large safety hazards when using positive pressure cooling.
为了实现上述目的,本发明一个方面提供了一种冷却系统,该冷却系统包括:冷媒供应单元;用于冷却待冷却物的冷却单元,通过冷媒输入管与冷媒供应单元相连通;液封槽;冷媒回收单元,包括冷媒回收管组和真空泵组,冷媒回收管组包括通过同一端口连通设置的冷媒回收支管、真空管和虹吸管,真空泵组与真空管连接,冷媒回收支管与冷却单元相连通,虹吸管与液封槽相连通,冷媒供应单元所在的水平面高于液封槽所在的水平面。In order to achieve the above object, an aspect of the present invention provides a cooling system including: a refrigerant supply unit; a cooling unit for cooling the object to be cooled, communicating with the refrigerant supply unit through the refrigerant input pipe; and a liquid sealing groove; The refrigerant recovery unit comprises a refrigerant recovery pipe group and a vacuum pump group, and the refrigerant recovery pipe group comprises a refrigerant recovery branch pipe, a vacuum pipe and a siphon pipe which are connected through the same port, the vacuum pump group is connected with the vacuum pipe, the refrigerant recovery branch pipe is connected with the cooling unit, and the siphon pipe and the liquid are connected. The sealing groove is connected, and the horizontal surface of the refrigerant supply unit is higher than the horizontal plane where the liquid sealing groove is located.
进一步地,冷媒供应单元包括:换热装置;冷媒储槽,与换热装置相连;以及冷媒供应槽,具有与冷媒储槽相连的端口和与冷却单元相连的端口。Further, the refrigerant supply unit includes: a heat exchange device; a refrigerant storage tank connected to the heat exchange device; and a refrigerant supply tank having a port connected to the refrigerant storage tank and a port connected to the cooling unit.
进一步地,冷媒供应单元还包括冷媒缓冲箱,冷媒缓冲箱设置于冷媒供应槽与冷媒储槽之间的流路上。Further, the refrigerant supply unit further includes a refrigerant buffer tank, and the refrigerant buffer tank is disposed on the flow path between the refrigerant supply tank and the refrigerant storage tank.
进一步地,冷媒供应槽内设置有第一溢流板,第一溢流板将冷媒供应槽分隔成第一供应格、第二供应格,第一溢流板的高度低于冷媒供应槽的侧壁的高度,冷媒储槽与第一供应格相连,冷媒输入管与第二供应格相连。Further, a first overflow plate is disposed in the refrigerant supply tank, and the first overflow plate divides the refrigerant supply tank into a first supply grid and a second supply grid, and the height of the first overflow panel is lower than the side of the refrigerant supply tank The height of the wall, the refrigerant storage tank is connected to the first supply grid, and the refrigerant inlet pipe is connected to the second supply grid.
进一步地,冷媒供应槽内还设置有第二溢流板,第二溢流板将第二供应格分隔成第一子供应格和第二子供应格,第二溢流板的高度低于冷媒供应槽的侧壁的高度,冷媒输入管与第一子供应格相连,液封槽与第二子供应格相连。 Further, a second overflow plate is disposed in the refrigerant supply tank, and the second overflow plate divides the second supply grid into a first sub-supply grid and a second sub-supply grid, and the second overflow panel has a lower height than the refrigerant The height of the side wall of the supply tank, the refrigerant inlet pipe is connected to the first sub-supply grid, and the liquid seal tank is connected to the second sub-supply grid.
进一步地,冷却系统还包括冷媒回收单元,冷媒回收单元与液封槽相连。Further, the cooling system further includes a refrigerant recovery unit, and the refrigerant recovery unit is connected to the liquid seal tank.
进一步地,液封槽设置有两块第三溢流板,第三溢流板将液封槽分隔成第一液封格、第二液封格和第三液封格,第三溢流板的高度低于液封槽的侧壁的高度,第二子供应格与第一液封格相连,虹吸管与第二液封格相连,冷媒回收单元与第三液封格相连。Further, the liquid sealing tank is provided with two third overflow plates, and the third overflow plate divides the liquid sealing tank into a first liquid sealing compartment, a second liquid sealing compartment and a third liquid sealing compartment, and a third overflowing panel The height is lower than the height of the side wall of the liquid sealing tank, the second sub-supply grid is connected to the first liquid sealing grid, the siphon tube is connected to the second liquid sealing grid, and the refrigerant recovery unit is connected to the third liquid sealing grid.
进一步地,真空管上设置有阀门。Further, a valve is provided on the vacuum tube.
进一步地,冷媒供应单元还包括第一冷媒输送泵,第一冷媒输送泵设置于冷媒储槽冷媒储槽与冷媒缓冲箱之间的流路上。Further, the refrigerant supply unit further includes a first refrigerant transfer pump, and the first refrigerant transfer pump is disposed on a flow path between the refrigerant storage tank of the refrigerant storage tank and the refrigerant buffer tank.
进一步地,冷媒储槽与冷媒回收单元相连通,冷却系统还包括第二冷媒输送泵,第二冷媒输送泵设置于冷媒储槽与冷媒回收单元之间的流路上。Further, the refrigerant storage tank is connected to the refrigerant recovery unit, and the cooling system further includes a second refrigerant delivery pump, and the second refrigerant delivery pump is disposed on the flow path between the refrigerant storage tank and the refrigerant recovery unit.
进一步地,冷却单元包括水套,水套通过冷媒输入管与冷媒供应单元相连通。Further, the cooling unit includes a water jacket, and the water jacket is connected to the refrigerant supply unit through the refrigerant input pipe.
应用本发明的技术方案,开启真空泵组将冷媒输入管、冷媒回收支管、真空管及虹吸管内空气排出,冷媒供应单元和液封槽内的冷媒在大气压力作用下分别进入冷媒输入管及虹吸管,当冷媒输入管和虹吸管内的液面上升到一定高度且二者达到一定高差时,虹吸现象便形成。由于冷媒供应单元和液封槽之间存在一定高度差,冷媒供应单元内的冷却水能够克服管道阻力后自行进入液封槽。同时由于整个冷却系统为负压,即使冷却单元有破裂现象出现时,冷煤不会或者很少出现外溢现象,从而有利于减轻冷媒外溢造成的安全生产事故。由此可知本发明提供的冷却系统不仅有利于降低冷却过程中的液流阻力,同时还有利于减少安全隐患。Applying the technical scheme of the invention, the vacuum pump group is turned on to discharge the air in the refrigerant input pipe, the refrigerant recovery branch pipe, the vacuum pipe and the siphon pipe, and the refrigerant in the refrigerant supply unit and the liquid sealing tank respectively enters the refrigerant input pipe and the siphon pipe under the action of atmospheric pressure, when The siphon phenomenon is formed when the liquid level in the refrigerant inlet pipe and the siphon pipe rises to a certain height and the two reach a certain height difference. Due to the certain height difference between the refrigerant supply unit and the liquid sealing tank, the cooling water in the refrigerant supply unit can enter the liquid sealing tank by itself after overcoming the resistance of the pipeline. At the same time, because the whole cooling system is under negative pressure, even if the cooling unit has a rupture phenomenon, the cold coal will not or rarely have an overflow phenomenon, which is beneficial to reduce the safety production accident caused by the refrigerant overflow. It can be seen that the cooling system provided by the invention not only helps to reduce the flow resistance during the cooling process, but also helps to reduce safety hazards.
附图说明DRAWINGS
构成本申请的一部分的说明书附图用来提供对本发明的进一步理解,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。在附图中:The accompanying drawings, which are incorporated in the claims of the claims In the drawing:
图1示出了本发明的一种典型的实施方式提供的冷却系统的结构示意图。1 is a schematic view showing the structure of a cooling system provided by an exemplary embodiment of the present invention.
其中,上述附图包括以下附图标记:Wherein, the above figures include the following reference numerals:
10、冷媒供应单元;11、换热装置;12、冷媒储槽;13、冷媒供应槽;131、第一溢流板;132、第二溢流板;20、冷却单元;21、冷媒输入管;30、液封槽;31、第三溢流板;40、冷媒回收单元;41、冷媒回收管组;411、冷媒回收支管;412、真空管;413、虹吸管;42、真空泵组;50、冷媒缓冲箱;60、第一冷媒输送泵;70、第二冷媒输送泵。10, a refrigerant supply unit; 11, a heat exchange device; 12, a refrigerant storage tank; 13, a refrigerant supply tank; 131, a first overflow plate; 132, a second overflow plate; 20, a cooling unit; 30, liquid sealing tank; 31, third overflow plate; 40, refrigerant recovery unit; 41, refrigerant recovery pipe group; 411, refrigerant recovery pipe; 412, vacuum pipe; 413, siphon pipe; 42, vacuum pump group; a buffer tank; 60, a first refrigerant delivery pump; 70, a second refrigerant delivery pump.
具体实施方式detailed description
需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本发明。 It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments.
正如背景技术所描述的,现有的正压冷却时存在的水流阻力大和安全隐患大的问题。为了解决上述技术问题,本发明提供了一种冷却系统,如图1所示,该冷却系统包括:冷媒供应单元10,用于冷却待冷却物的冷却单元20,液封槽30和冷媒回收单元40。冷却单元20与冷媒供应单元10通过冷媒输入管21相连通;冷媒回收单元40包括冷媒回收管组41和真空泵组42。冷媒回收管组41包括通过同一端口连通设置的冷媒回收支管411、真空管412和虹吸管413,真空泵组42与真空管412连接,冷媒回收支管411与冷却单元20相连通,虹吸管413与液封槽30相连通,冷媒供应单元10所在的水平面高于液封槽30所在的水平面。As described in the background art, the existing positive pressure cooling has a problem of large water flow resistance and large safety hazard. In order to solve the above technical problem, the present invention provides a cooling system, as shown in FIG. 1, the cooling system includes: a refrigerant supply unit 10, a cooling unit 20 for cooling the object to be cooled, a liquid sealing tank 30 and a refrigerant recovery unit 40. The cooling unit 20 and the refrigerant supply unit 10 are in communication via a refrigerant input pipe 21; the refrigerant recovery unit 40 includes a refrigerant recovery pipe group 41 and a vacuum pump group 42. The refrigerant recovery pipe group 41 includes a refrigerant recovery branch pipe 411, a vacuum pipe 412, and a siphon pipe 413 which are connected through the same port. The vacuum pump group 42 is connected to the vacuum pipe 412, the refrigerant recovery branch pipe 411 is connected to the cooling unit 20, and the siphon pipe 413 is connected to the liquid sealing groove 30. The horizontal plane of the refrigerant supply unit 10 is higher than the horizontal plane of the liquid seal tank 30.
当需要对待冷却物进行冷却时,开启真空泵组42将冷媒输入管21、冷媒回收支管411、真空管412及虹吸管413内空气排出,冷媒供应单元10和液封槽30内的冷媒在大气压力作用下分别进入冷媒输入管21及虹吸管413,当冷媒输入管21和虹吸管413内的液面上升到一定高度且二者达到一定高差时,虹吸现象便形成。由于冷媒供应单元10和液封槽30之间存在一定高度差,冷媒供应单元10内的冷却水能够克服管道阻力后自行进入液封槽30。同时由于整个冷却系统为负压,即使冷却单元20有破裂现象出现时,冷煤不会或者很少出现外溢现象,从而有利于减轻冷媒外溢造成的安全生产事故。由此可知本发明提供的冷却系统不仅有利于降低冷却过程中的液流阻力,同时还有利于减少安全隐患。When the cooling object is required to be cooled, the vacuum pump unit 42 is turned on to discharge the air in the refrigerant inlet pipe 21, the refrigerant recovery pipe 411, the vacuum pipe 412, and the siphon pipe 413, and the refrigerant in the refrigerant supply unit 10 and the liquid sealing tank 30 is under atmospheric pressure. The refrigerant input pipe 21 and the siphon pipe 413 are respectively entered, and when the liquid level in the refrigerant inlet pipe 21 and the siphon pipe 413 rises to a certain height and the two reach a certain height difference, a siphon phenomenon is formed. Since there is a certain height difference between the refrigerant supply unit 10 and the liquid sealing tank 30, the cooling water in the refrigerant supply unit 10 can enter the liquid sealing tank 30 by itself after overcoming the resistance of the piping. At the same time, since the entire cooling system is under negative pressure, even if the cooling unit 20 has a cracking phenomenon, the cold coal will not or rarely have an overflow phenomenon, thereby facilitating the safety production accident caused by the refrigerant overflow. It can be seen that the cooling system provided by the invention not only helps to reduce the flow resistance during the cooling process, but also helps to reduce safety hazards.
实际使用过程中真空泵组42可以根据整套冷却系统中的真空度决定其应处于开启或关闭状态,水套泄漏情况也可依据冷媒回收支管411的流量和抽真空单元的启停工作频率来判断,冷媒包括但不限于水。使用水作为冷媒有利于降低冷却成本,同时水作为冷媒还具有较高的冷却效率。In the actual use process, the vacuum pump group 42 can determine whether it should be in an open or closed state according to the degree of vacuum in the whole set of cooling system, and the water jacket leakage condition can also be judged according to the flow rate of the refrigerant recovery branch pipe 411 and the start and stop working frequency of the vacuuming unit. Refrigerants include, but are not limited to, water. The use of water as a refrigerant helps to reduce the cooling cost, while water as a refrigerant also has a higher cooling efficiency.
在一种优选的实施例中,参见图1,冷媒供应单元10包括换热装置11,冷媒储槽12,以及冷媒供应槽13,冷媒储槽12与换热装置11相连,冷媒供应槽13具有与冷媒储槽12相连的端口,还具有与冷却单元20相连的端口。In a preferred embodiment, referring to FIG. 1, the refrigerant supply unit 10 includes a heat exchange device 11, a refrigerant storage tank 12, and a refrigerant supply tank 13, and the refrigerant storage tank 12 is connected to the heat exchange device 11, and the refrigerant supply tank 13 has The port connected to the refrigerant storage tank 12 also has a port connected to the cooling unit 20.
在一种优选的实施例中,参见图1,冷媒供应单元10还包括冷媒缓冲箱50,该冷媒缓冲箱50设置于冷媒供应槽13与冷媒储槽12之间的流路上。虹吸现象的形成需要在冷媒回收管路和虹吸管413路上保持一定的真空度。冷媒工艺槽中的页面波动有可能会导致冷媒输入管21的密封性变差从而破坏虹吸现象的持续性。在冷媒供应槽13与冷媒储槽12之间设置冷媒缓冲箱50有利于减少冷媒供应槽13中液面的波动性,从而有利于维持虹吸现象的稳定性。In a preferred embodiment, referring to FIG. 1, the refrigerant supply unit 10 further includes a refrigerant buffer tank 50 disposed on a flow path between the refrigerant supply tank 13 and the refrigerant storage tank 12. The formation of the siphon phenomenon requires a certain degree of vacuum on the refrigerant recovery line and the siphon tube 413. The page fluctuation in the refrigerant process tank may cause the sealing property of the refrigerant feed pipe 21 to deteriorate to impair the persistence of the siphon phenomenon. Providing the refrigerant buffer tank 50 between the refrigerant supply tank 13 and the refrigerant storage tank 12 is advantageous for reducing the fluctuation of the liquid surface in the refrigerant supply tank 13, thereby facilitating the stability of the siphon phenomenon.
在一种优选的实施例中,参见图1,冷媒供应槽13内设置有第一溢流板131,第一溢流板131的高度低于冷媒供应槽13的侧壁的高度。第一溢流板131将冷媒供应槽13分隔成第一供应格、第二供应格,冷媒储槽12与第一供应格相连,冷媒输入管21与第二供应格相连。设置第一溢流板131有利于进一步降低冷媒供应单元10中液面的波动性,从而有利于进一步提高虹吸现象的稳定性。In a preferred embodiment, referring to FIG. 1, a first overflow plate 131 is disposed in the refrigerant supply tank 13, and the height of the first overflow plate 131 is lower than the height of the side wall of the refrigerant supply tank 13. The first overflow plate 131 divides the refrigerant supply tank 13 into a first supply grid and a second supply grid. The refrigerant storage tank 12 is connected to the first supply grid, and the refrigerant feed pipe 21 is connected to the second supply grid. The provision of the first overflow plate 131 is advantageous for further reducing the fluctuation of the liquid level in the refrigerant supply unit 10, thereby facilitating further improvement of the stability of the siphon phenomenon.
在一种优选的实施例中,参见图1,冷媒供应槽13内还设置有第二溢流板132,第二溢流板132的高度低于冷媒供应槽13的侧壁的高度。第二溢流板132将第二供应格分隔成第一子供应格和第二子供应格,冷媒输入管21与第一子供应格相连,液封槽30与第二子供应格 相连。设置第二溢流板132将第二供应格分隔成第一子供应格和第二子供应格有利于在保证虹吸现象稳定性的同时,将冷媒供应槽13中多余的冷媒进行回收。In a preferred embodiment, referring to FIG. 1, a second overflow plate 132 is disposed in the refrigerant supply tank 13, and the height of the second overflow plate 132 is lower than the height of the side wall of the refrigerant supply tank 13. The second overflow plate 132 divides the second supply grid into a first sub-supply grid and a second sub-supply grid, the refrigerant input pipe 21 is connected to the first sub-supply grid, and the liquid seal tank 30 and the second sub-supply grid Connected. The provision of the second overflow plate 132 to separate the second supply grid into the first sub-supply grid and the second sub-supply grid facilitates recovery of excess refrigerant in the refrigerant supply tank 13 while ensuring the stability of the siphon phenomenon.
在一种优选的实施例中,参见图1,冷却系统还包括冷媒回收单元40,冷媒回收单元40与液封槽30相连。有利于回收液封槽30中的冷媒。In a preferred embodiment, referring to FIG. 1, the cooling system further includes a refrigerant recovery unit 40 that is coupled to the liquid seal tank 30. It is advantageous to recover the refrigerant in the liquid sealing tank 30.
在一种优选的实施例中,参见图1,液封槽30设置有两块第三溢流板31,第三溢流板31的高度低于液封槽30的侧壁的高度。第三溢流板31将液封槽30分隔成第一液封格、第二液封格和第三液封格,第二子供应格与第一液封格相连,虹吸管413与第二液封格相连,冷媒回收单元40与第三液封格相连。In a preferred embodiment, referring to FIG. 1, the liquid sealing tank 30 is provided with two third overflow plates 31, and the height of the third overflow plate 31 is lower than the height of the side walls of the liquid sealing groove 30. The third overflow plate 31 divides the liquid sealing tank 30 into a first liquid sealing compartment, a second liquid sealing compartment and a third liquid sealing compartment, and the second sub-supply grid is connected to the first liquid sealing compartment, the siphon 413 and the second liquid The seals are connected, and the refrigerant recovery unit 40 is connected to the third liquid seal.
如前文所述,虹吸现象需要同时保持冷媒回收支管411和虹吸管413中的真空度,因而设置两块第三溢流板31有利于降低液封槽30中液面的波动性,从而提高冷媒回收管和虹吸管413中的密封性,进而有利于提高虹吸现象的稳定性。As described above, the siphon phenomenon needs to maintain the degree of vacuum in the refrigerant recovery branch pipe 411 and the siphon pipe 413 at the same time, so that the provision of the two third overflow plates 31 is advantageous for reducing the fluctuation of the liquid level in the liquid sealing tank 30, thereby improving the refrigerant recovery. The tightness in the tube and the siphon tube 413, in turn, contributes to the stability of the siphon phenomenon.
在一种优选的实施例中,参见图1,冷媒储槽12与冷媒回收单元40相连通,冷却系统还包括设置于冷媒储槽12与冷媒回收单元40之间的流路上的第二冷媒输送泵70。冷媒储槽12与冷媒回收单元40相连通有利于将回收到的冷媒进行循环利用。In a preferred embodiment, referring to FIG. 1, the refrigerant storage tank 12 is in communication with the refrigerant recovery unit 40. The cooling system further includes a second refrigerant delivery passage disposed on the flow path between the refrigerant storage tank 12 and the refrigerant recovery unit 40. Pump 70. The communication of the refrigerant storage tank 12 with the refrigerant recovery unit 40 facilitates recycling of the recovered refrigerant.
在一种优选的实施例中,参见图1,真空管412上设置有阀门。在真空管上设置阀门,有利于根据需要进一步调整冷却系统中的真空度。In a preferred embodiment, referring to Figure 1, a vacuum tube 412 is provided with a valve. Providing a valve on the vacuum tube facilitates further adjustment of the vacuum in the cooling system as needed.
在一种优选的实施例中,参见图1,冷媒供应单元10还包括设置于冷媒储槽与冷媒缓冲箱50之间的流路上的第一冷媒输送泵60。设置第一冷媒输送泵60能够为冷媒从冷媒储槽12流向冷媒缓冲箱50的过程中提供动力。In a preferred embodiment, referring to FIG. 1, the refrigerant supply unit 10 further includes a first refrigerant delivery pump 60 disposed on a flow path between the refrigerant storage tank and the refrigerant buffer tank 50. The first refrigerant transfer pump 60 is provided to be able to supply power for the refrigerant to flow from the refrigerant storage tank 12 to the refrigerant buffer tank 50.
本申请提供的上述冷却系统中,冷却单元20的结构不限,只要能够起到冷却的作用即可。在一种优选的实施例中,冷却单元20包括通过冷媒输入管21与冷媒供应单元10相连通的水套。水套作为冷却单元不仅结构简单、使用方便,而且还具有成本低,易于更换等特点。In the above-described cooling system provided by the present application, the configuration of the cooling unit 20 is not limited as long as it can function as a cooling. In a preferred embodiment, the cooling unit 20 includes a water jacket that communicates with the refrigerant supply unit 10 through a refrigerant feed pipe 21. As a cooling unit, the water jacket is not only simple in structure, convenient in use, but also has the characteristics of low cost and easy replacement.
以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。 The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims (11)

  1. 一种冷却系统,其特征在于,所述冷却系统包括:A cooling system, characterized in that the cooling system comprises:
    冷媒供应单元(10);Refrigerant supply unit (10);
    用于冷却待冷却物的冷却单元(20),通过冷媒输入管(21)与所述冷媒供应单元(10)相连通;a cooling unit (20) for cooling the object to be cooled, communicating with the refrigerant supply unit (10) through a refrigerant input pipe (21);
    液封槽(30);Liquid sealing tank (30);
    冷媒回收单元(40),包括冷媒回收管组(41)和真空泵组(42),所述冷媒回收管组(41)包括通过同一端口连通设置的冷媒回收支管(411)、真空管(412)和虹吸管(413),所述真空泵组(42)与所述真空管(412)连接,所述冷媒回收支管(411)与所述冷却单元(20)相连通,所述虹吸管(413)与所述液封槽(30)相连通,所述冷媒供应单元(10)所在的水平面高于所述液封槽(30)所在的水平面。The refrigerant recovery unit (40) includes a refrigerant recovery pipe group (41) and a vacuum pump group (42), and the refrigerant recovery pipe group (41) includes a refrigerant recovery branch pipe (411) and a vacuum pipe (412) that are connected through the same port. a siphon tube (413), the vacuum pump group (42) is connected to the vacuum tube (412), the refrigerant recovery branch tube (411) is in communication with the cooling unit (20), the siphon tube (413) and the liquid The sealing groove (30) is in communication, and the horizontal direction of the refrigerant supply unit (10) is higher than the horizontal plane of the liquid sealing groove (30).
  2. 根据权利要求1所述的冷却系统,其特征在于,所述冷媒供应单元(10)包括:The cooling system according to claim 1, wherein the refrigerant supply unit (10) comprises:
    换热装置(11);Heat exchange device (11);
    冷媒储槽(12),与所述换热装置(11)相连;以及a refrigerant storage tank (12) connected to the heat exchange device (11);
    冷媒供应槽(13),具有与所述冷媒储槽(12)相连的端口和与所述冷却单元(20)相连的端口。The refrigerant supply tank (13) has a port connected to the refrigerant storage tank (12) and a port connected to the cooling unit (20).
  3. 根据权利要求2所述的冷却系统,其特征在于,所述冷媒供应单元(10)还包括冷媒缓冲箱(50),所述冷媒缓冲箱(50)设置于所述冷媒供应槽(13)与所述冷媒储槽(12)之间的流路上。The cooling system according to claim 2, wherein the refrigerant supply unit (10) further comprises a refrigerant buffer tank (50), and the refrigerant buffer tank (50) is disposed in the refrigerant supply tank (13) a flow path between the refrigerant storage tanks (12).
  4. 根据权利要求2所述的冷却系统,其特征在于,所述冷媒供应槽(13)内设置有第一溢流板(131),所述第一溢流板(131)将所述冷媒供应槽(13)分隔成第一供应格、第二供应格,所述第一溢流板(131)的高度低于所述冷媒供应槽(13)的侧壁的高度,所述冷媒储槽(12)与所述第一供应格相连,所述冷媒输入管(21)与所述第二供应格相连。The cooling system according to claim 2, wherein a first overflow plate (131) is disposed in the refrigerant supply tank (13), and the first overflow plate (131) supplies the refrigerant supply tank (13) partitioning into a first supply grid, a second supply grid, a height of the first overflow panel (131) being lower than a height of a sidewall of the refrigerant supply tank (13), the refrigerant storage tank (12) And connected to the first supply grid, the refrigerant input pipe (21) is connected to the second supply grid.
  5. 根据权利要求4所述的冷却系统,其特征在于,所述冷媒供应槽(13)内还设置有第二溢流板(132),所述第二溢流板(132)将所述第二供应格分隔成第一子供应格和第二子供应格,所述第二溢流板(132)的高度低于所述冷媒供应槽(13)的侧壁的高度,所述冷媒输入管(21)与所述第一子供应格相连,所述液封槽(30)与所述第二子供应格相连。The cooling system according to claim 4, wherein a second overflow plate (132) is further disposed in the refrigerant supply tank (13), and the second overflow plate (132) is to be the second The supply grid is partitioned into a first sub-supply grid and a second sub-supply grid, the height of the second overflow panel (132) being lower than the height of the sidewall of the refrigerant supply tank (13), the refrigerant input pipe ( 21) connected to the first sub-supply grid, the liquid seal tank (30) being connected to the second sub-supply grid.
  6. 根据权利要求5所述的冷却系统,其特征在于,所述冷却系统还包括冷媒回收单元(40),所述冷媒回收单元(40)与所述液封槽(30)相连。The cooling system according to claim 5, wherein said cooling system further comprises a refrigerant recovery unit (40), said refrigerant recovery unit (40) being coupled to said liquid seal tank (30).
  7. 根据权利要求6所述的冷却系统,其特征在于,所述液封槽(30)设置有两块第三溢流板(31),所述第三溢流板(31)将所述液封槽(30)分隔成第一液封格、第二液封格和第三液封格,所述第三溢流板(31)的高度低于所述液封槽(30)的侧壁的高度,所述 第二子供应格与所述第一液封格相连,所述虹吸管(413)与所述第二液封格相连,所述冷媒回收单元(40)与所述第三液封格相连。The cooling system according to claim 6, wherein said liquid sealing tank (30) is provided with two third overflow plates (31), said third overflow plate (31) sealing said liquid seal The groove (30) is partitioned into a first liquid sealing compartment, a second liquid sealing compartment and a third liquid sealing compartment, and the height of the third overflow panel (31) is lower than the sidewall of the liquid sealing tank (30) Height, said The second sub-supply grid is connected to the first liquid sealing compartment, the siphon tube (413) is connected to the second liquid sealing compartment, and the refrigerant recovery unit (40) is connected to the third liquid sealing compartment.
  8. 根据权利要求6所述的冷却系统,其特征在于,所述冷媒储槽(12)与所述冷媒回收单元(40)相连通,所述冷却系统还包括第二冷媒输送泵(70),所述第二冷媒输送泵(70)设置于所述冷媒储槽(12)与所述冷媒回收单元(40)之间的流路上。The cooling system according to claim 6, wherein said refrigerant storage tank (12) is in communication with said refrigerant recovery unit (40), said cooling system further comprising a second refrigerant delivery pump (70), The second refrigerant transfer pump (70) is disposed on a flow path between the refrigerant storage tank (12) and the refrigerant recovery unit (40).
  9. 根据权利要求1所述的冷却系统,其特征在于,所述真空管(412)上设置有阀门。The cooling system of claim 1 wherein said vacuum tube (412) is provided with a valve.
  10. 根据权利要求3所述的冷却系统,其特征在于,所述冷媒供应单元(10)还包括第一冷媒输送泵(60),所述第一冷媒输送泵(60)设置于所述冷媒储槽(12)冷媒储槽与所述冷媒缓冲箱(50)之间的流路上。The cooling system according to claim 3, wherein the refrigerant supply unit (10) further comprises a first refrigerant transfer pump (60), and the first refrigerant transfer pump (60) is disposed in the refrigerant storage tank (12) A flow path between the refrigerant storage tank and the refrigerant buffer tank (50).
  11. 根据权利要求1至10中任一项所述的冷却系统,其特征在于,所述冷却单元(20)包括水套,所述水套通过所述冷媒输入管(21)与所述冷媒供应单元(10)相连通。 The cooling system according to any one of claims 1 to 10, wherein the cooling unit (20) includes a water jacket, and the water jacket passes through the refrigerant input pipe (21) and the refrigerant supply unit (10) Connected.
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