CN219304639U - Three-machine cooling unit - Google Patents
Three-machine cooling unit Download PDFInfo
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- CN219304639U CN219304639U CN202320764585.9U CN202320764585U CN219304639U CN 219304639 U CN219304639 U CN 219304639U CN 202320764585 U CN202320764585 U CN 202320764585U CN 219304639 U CN219304639 U CN 219304639U
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Abstract
The utility model discloses a three-machine cooling unit, which is characterized in that cooling water is circularly provided by a circulating water cooling device, and is used for cooling a motor of equipment to be cooled, the cooling water is heated and then enters the circulating water cooling device again to be cooled to be cooling water, and the obtained cooling water enters the next cooling circulation, so that closed circulation cooling is formed; the circulating water cooling device treats the heating water into cooling water in a heat exchange mode, so that heat generated by the motor group of the equipment to be cooled is taken away. The utility model changes the traditional open system into a circulating closed system, circularly utilizes the cooling water, achieves the aim of saving water resources, and modularly designs the inside of the circulating water cooling device, combines a plurality of modules in parallel connection and series connection, thereby realizing the effects of local cleaning without stopping and affecting the normal use of the unit.
Description
Technical Field
The utility model relates to a unit, in particular to a three-machine cooling unit.
Background
At present, a unidirectional direct current open system is adopted for cooling equipment motors of underground coal mine transfer conveyors, crushers, scraper machines, coal mining machines and the like, cooling water is added into the equipment, and is directly discharged into an underground water collecting drain pipe after the equipment motors are cooled, so that a great amount of water resources can be wasted in the cooling mode. Meanwhile, cooling water for cooling equipment is usually static pressure water and the like, and the static pressure water has the defect of poor water quality and can influence the service life of the equipment after long-time use.
Disclosure of Invention
In order to solve the defects of the technology, the utility model provides a three-machine cooling unit and a cooling method thereof.
In order to solve the technical problems, the utility model adopts the following technical scheme: the three-machine cooling unit is provided with a circulating water cooling device; the circulating water cooling device is communicated with a secondary refrigerant water inlet, a secondary refrigerant water outlet, a primary refrigerant water inlet and a primary refrigerant water outlet;
the secondary refrigerant water outlet is connected with a water inlet of a water channel of the equipment motor to be cooled and is used for providing cooling water for cooling the equipment motor to be cooled; the refrigerant water inlet is connected with a water outlet of a water channel of the equipment motor to be cooled and is used for enabling the warm water to enter a three-machine cooling unit for cooling again to form cooling water so as to form closed circulation cooling;
and primary coolant water is introduced into the primary coolant water inlet, the primary coolant water exchanges heat with the heating water in the circulating water cooling device, and the primary coolant water after heat exchange flows out from the primary coolant water outlet.
Further, a hydraulic combined control device, an energy buffering device and a water pump unit are arranged between the secondary refrigerant water inlet and the circulating water cooling device;
the secondary refrigerant water inlet, the hydraulic combined control device, the energy buffering device, the water pump unit and the circulating water cooling device are sequentially communicated.
Further, the water pump unit is also connected with the hydraulic combined control device through a pipeline.
Further, unit water replenishing of the three-machine cooling unit is introduced through a unit water replenishing port, the unit water replenishing port is communicated with a water treatment device, and the water treatment device is communicated with the energy buffering device.
Further, the circulating water cooling device comprises a plurality of cooling modules, and the plurality of cooling modules are combined in series and/or in parallel to form the circulating water cooling device.
Further, each cooling module comprises a cooling heat exchange device, a secondary refrigerant liquid inlet valve is arranged at a secondary refrigerant inlet of the cooling heat exchange device, and a secondary refrigerant liquid outlet valve is arranged at a secondary refrigerant outlet of the cooling heat exchange device;
the primary refrigerant inlet of the cooling heat exchange device is provided with a primary refrigerant liquid inlet valve, and the primary refrigerant outlet of the cooling heat exchange device is provided with a primary refrigerant liquid outlet valve.
Further, a first pressure sensor is arranged at the liquid outlet end of the primary refrigerant liquid inlet valve and is used for monitoring the inlet pressure of the primary refrigerant; the liquid inlet end of the primary refrigerant liquid outlet valve is provided with a second pressure sensor for monitoring the outlet pressure of the primary refrigerant.
Further, a pipeline is communicated between a secondary refrigerant liquid inlet end and a secondary refrigerant liquid outlet end of the cooling heat exchange device, and a secondary refrigerant shunt valve is arranged on the pipeline; a pipeline is communicated between the primary refrigerant liquid inlet end and the primary refrigerant liquid outlet end of the cooling heat exchange device, and a primary refrigerant shunt valve is arranged on the pipeline.
Further, the cooling heat exchange device is connected with the pipelines of the secondary refrigerant liquid inlet valve, the secondary refrigerant liquid outlet valve, the primary refrigerant liquid inlet valve and the primary refrigerant liquid outlet valve through the quick mounting interfaces.
Further, the three-machine cooling unit is further arranged on a unit frame, and the unit frame and the three-machine cooling unit are divided into two parts.
The utility model discloses a three-machine cooling unit, which solves the problem that cooling water is wasted by adopting a direct-current open system when equipment motors of a coal mine underground transfer machine, a crusher, a scraper, a coal mining machine and the like are cooled, solves the problem that the quality of the cooling water cannot be guaranteed, and the service life of the equipment is influenced, and solves the problem of easy maintenance and cleaning of the unit when the unit is used for a long time. The utility model changes the traditional open system into a circulating closed system, circularly utilizes the cooling water, achieves the purpose of saving water resources, ensures the quality of the circulating water and prolongs the service life of equipment. The core component circulating water cooling device is internally modularized, a plurality of modules are combined in parallel connection and series connection, the effect that local cleaning is not stopped and normal use of a unit is not affected is achieved, and the module structure is easy to assemble and disassemble and is simple and convenient to operate.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic diagram of the circulating water cooling apparatus of fig. 1.
FIG. 3 is a schematic layout of the components of the unit frame of the present utility model when the unit frame is in two parts.
In the figure: 1. a hydraulic combined control device; 2. energy buffering device; 3. a water pump unit; 4. a circulating water cooling device; 5. a water treatment device; 6. mining flameproof and intrinsically safe programmable control box; 7. a cooling module; 8. a unit frame;
70. cooling the heat exchange device; 71. a secondary refrigerant liquid inlet valve; 72. a secondary refrigerant shunt valve; 73. a secondary refrigerant liquid outlet valve; 74. a primary refrigerant liquid outlet valve; 75. a primary refrigerant shunt valve; 76. a primary refrigerant liquid inlet valve; 77. a first pressure sensor; 78. a second pressure sensor; 79. a quick installation interface;
a. a secondary refrigerant inlet; b. a secondary refrigerant outlet; c. a primary refrigerant inlet; d. a primary refrigerant outlet; e. and (5) water supplementing port of the unit.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the detailed description.
The utility model discloses a three-machine cooling unit, which mainly comprises 5 waterway interfaces and 1 power interface, wherein the 5 waterway interfaces are respectively a secondary coolant water inlet a, a secondary coolant water outlet b, a primary coolant water inlet c, a primary coolant water outlet d and a unit water supplementing port e, and the 1 power interface is a power supply of a mining flameproof and intrinsically safe programmable control box 6.
The secondary refrigerant water inlet a is connected with a water outlet of the equipment motor water channel to be cooled, and the secondary refrigerant water outlet b is connected with a water inlet of the equipment motor water channel to be cooled, so that a traditional open direct-current system is changed into a closed circulation system, and a hydraulic combined control device 1, an energy buffering device 2, a water pump unit 3 and a circulating water cooling device 4 are sequentially connected to the secondary refrigerant water inlet a in a three-machine cooling unit.
The three-machine cooling unit is provided with cooling water jackets through a secondary coolant water outlet b, the cooling water enters from a water channel water inlet of the equipment motor, the water is cooled by all water channels, the water outlet temperature rises, enters the three-machine cooling unit through a secondary coolant water inlet a, then enters a circulating water cooling device 4 through a hydraulic combined control device 1, an energy buffering device 2 and a water pump unit 3 in sequence, and the cooling water obtained after being cooled by the circulating water cooling device 4 enters the cooling water jackets of the equipment again to carry out the next circulation, so the cooling water is reciprocated, and the equipment motor is continuously cooled.
In the circulating water cooling device 4, heat exchange is carried out, and the circulating water cooling device 4 is provided with a side refrigerant water inlet c and a primary refrigerant water outlet d; the primary coolant water is fed in from the primary coolant water inlet c at the primary coolant side and fed out from the primary coolant water outlet d, so that heat generated by the motor group of the equipment to be cooled is taken away, and the aim of cooling the equipment is fulfilled. The primary coolant water is directly subjected to static pressure water without further treatment.
In the three-machine cooling unit, a water pump unit 3 is configured, the water pump unit 3 is positioned between the energy buffering device 2 and the circulating water cooling device 4, and is communicated with the hydraulic combined control device 1 through a pipeline, so that the normal circulating flow of the secondary closed system can be ensured.
The hydraulic combined control device 1 is used for protecting the safety of the system, and when the water pump unit 3 stops running, the hydraulic combined control device 1 is closed. The hydraulic combined control device 1 can specifically adopt an on-off valve, an on-off valve control pipe is connected to a water pump outlet, when the water pump is started, a piston above a valve body is subjected to water pressure and moves downwards, so that the valve is opened; when the water pump stops working, the upper part loses pressure, the piston moves upwards, and the valve is closed. The on-off valve is automatically opened along with the starting of the water pump, so that the secondary refrigerant can smoothly enter water, and the on-off valve can stop running as long as the water pump stops running.
The energy buffering device 3 is used for balancing the water quantity of the system and has the function of water supplementing; the water inlet of the energy buffering device 3 is provided with a water treatment device 5, and the water treatment device 5 is communicated with a water supplementing port e of the unit, so that the water supplementing of the unit is supplemented into the energy buffering device 3 after being pretreated by the water treatment device. The energy buffering device 3 can specifically adopt a water tank, the water tank is provided with a liquid level sensor and a water supplementing valve, when the liquid level in the water tank is lower than a set water inlet level, the electric valve is opened, and the water tank is supplemented with water; and stopping water supplementing when the liquid level reaches the set stop water level. The water tank is used as an energy buffering device to meet the functions of water supplementing, buffering and system expansion absorption of the system.
The unit water replenishing is treated by the water treatment device 5 in advance, so that the water can be ensured to have a certain cleanliness, and the water treatment device 5 can specifically adopt a silicon-phosphorus crystal water treatment device for ensuring the cleanliness in a closed circulation system. When pure water or soft water is supplied on site, the pure water or soft water is preferably adopted; the phosphoric acid crystal water processor is an overcurrent water processor, and the silicon phosphate in water forms a soluble complex and a indissoluble nanoscale film to play roles in scale inhibition and corrosion prevention.
The secondary refrigerant side of the three-machine cooling unit is a small amount of circulating water, the water quality is high, the water supplementing amount is small in the running process, and a water treatment device 5 is arranged for pretreatment; however, the primary refrigerant side has larger water consumption, static pressure water is directly adopted, and the problem of unit maintenance and cleaning exists after the operation for a period of time in consideration of slightly poor quality of the static pressure water, so that the core component (namely the circulating water cooling device 4) of the three-machine cooling unit is subjected to modularized design.
As shown in fig. 2, the circulating water cooling apparatus 4 is constituted by a plurality of cooling modules 7 combined in series and/or parallel. The water supply quantity of the refrigerant can be improved by parallel connection, the cooling effect can be improved by serial connection, and the specific quantity and the combination form are customized according to different use conditions.
In this embodiment, the plurality of cooling modules are sequentially connected in series, and the circulation channels of the primary refrigerant are sequentially connected through the pipelines, and the circulation channels of the secondary refrigerant are sequentially connected through the pipelines, so as to realize the series connection of the plurality of cooling modules.
In this embodiment, a plurality of cooling modules are connected in parallel, the refrigerant water inlet is provided with a plurality of branches consistent with the number of the cooling modules, the water pump unit water outlet is provided with a plurality of branches consistent with the number of the cooling modules, and the plurality of cooling modules are respectively and correspondingly connected with the refrigerant water inlet branch and the water pump unit water outlet branch, so that the parallel connection of the plurality of cooling modules is realized.
In this embodiment, a plurality of cooling modules are combined in series and parallel, and the circulation channels of the primary refrigerant are sequentially communicated through the pipeline, and the circulation channels of the secondary refrigerant are sequentially communicated through the pipeline, while the refrigerant inlet water is provided with a plurality of branches, and the water pump unit outlet water is provided with a plurality of branches, so as to form a circulating cooling device as shown in fig. 2.
For each cooling module 7, the cooling module comprises a cooling heat exchange device 70, a secondary refrigerant liquid inlet valve 71 is arranged at a secondary refrigerant inlet of the cooling heat exchange device 70, and a secondary refrigerant liquid outlet valve 73 is arranged at a secondary refrigerant outlet; correspondingly, a primary refrigerant liquid inlet valve 76 is arranged at a primary refrigerant inlet of the cooling heat exchange device 70, and a primary refrigerant liquid outlet valve 74 is arranged at a primary refrigerant outlet; meanwhile, a first pressure sensor 77 is arranged at the liquid outlet end of the primary refrigerant liquid inlet valve 76 and is used for monitoring the inlet pressure of the primary refrigerant; the liquid inlet end of the primary refrigerant liquid outlet valve 74 is provided with a second pressure sensor 78 for monitoring the outlet pressure of the primary refrigerant.
When the pressure difference between the inlet pressure of the primary refrigerant and the outlet pressure of the primary refrigerant of the cooling heat exchange device 70 exceeds a preset value, the cooling heat exchange device 70 is required to be removed and cleaned, and a pipeline is communicated between the liquid inlet end of the secondary refrigerant of the cooling heat exchange device 70 and the liquid outlet end of the secondary refrigerant, and is provided with a secondary refrigerant shunt valve 72; similarly, a pipeline is communicated between the primary refrigerant liquid inlet end and the primary refrigerant liquid outlet end of the cooling heat exchange device 70, and a primary refrigerant shunt valve 75 is arranged on the pipeline.
Therefore, when the pressure difference between the first pressure sensor 77 and the second pressure sensor 78 of the cooling heat exchange device 70 exceeds a predetermined value, the secondary refrigerant liquid inlet valve 71, the secondary refrigerant liquid outlet valve 73, the primary refrigerant liquid inlet valve 76 and the primary refrigerant liquid outlet valve 74 are closed, the secondary refrigerant branch valve 72 and the primary refrigerant branch valve 75 are opened, the cooling heat exchange device 70 is removed and cleaned, and the working condition of other cooling modules is kept unchanged. In order to make the cooling heat exchange device 70 quickly and conveniently complete moving out and installing, the cooling heat exchange device 70 is connected with the pipelines of the secondary refrigerant liquid inlet valve 71, the secondary refrigerant liquid outlet valve 73, the primary refrigerant liquid inlet valve 76 and the primary refrigerant liquid outlet valve 74 through the quick installation interfaces 79, namely, each cooling heat exchanger is provided with 4 quick-mounting connectors. The outside of the circulating water cooling device 4 adopts a shell structure, so that the pollution of dust to the surface of the device is avoided.
In addition, the three-machine cooling unit is provided with the mining flameproof and intrinsically safe programmable control box 6, is convenient for on-site inspection, maintenance and operation, can realize functions of displaying and setting running parameters of the unit, displaying and inquiring fault alarm information, has manual operation and automatic operation functions, does not need special management, and has protection functions of overvoltage, overcurrent, undervoltage, overload, short circuit, fault sound, lamplight alarm and the like. The mining flameproof and intrinsically safe programmable control box is in the prior art, can be programmed and set according to specific functional requirements, and is not described herein.
The triple cooler assembly is also provided with an assembly frame 8 as a device base, the assembly frame 8 being separable into two parts for transportation of the triple cooler assembly downhole in view of transportation of the downhole devices. When the unit frame 8 is divided into two parts, the layout of each part is as shown in fig. 3, the circulating water cooling device 4 is arranged on one frame, the other parts can be arranged on the other frame, and the butt joint of pipelines and line interfaces can be carried out on site.
Therefore, for the three-machine cooling unit disclosed by the utility model, the cooling process of the motor of the equipment to be cooled is as follows: the closed circulation mode is adopted for cooling, the circulating water cooling device 4 circulates and provides cooling water, the cooling water enters the cooling water inlet through the secondary refrigerant outlet b, the cooling water passes through the water channel to cool the motor, the outlet water temperature rises, the outlet water enters the three-machine cooling unit from the secondary refrigerant water inlet a, the outlet water sequentially enters the circulating water cooling device 4 through the hydraulic combined control device 1, the energy buffering device 2 and the water pump unit 3, the cooling water obtained after being cooled by the circulating water cooling device 4 enters the cooling water jackets of all equipment again for next circulation, and the cooling water is reciprocated to continuously cool the motor of the equipment. On the primary refrigerant side, primary refrigerant water flows in from a primary refrigerant water inlet c and flows out from a primary refrigerant water outlet d, and heat exchange is carried out between the primary refrigerant water and heating water at the position of a circulating water cooling device 4, so that heat generated by a motor group of equipment to be cooled is taken away, and the aim of cooling the equipment is fulfilled.
Compared with the prior art, the utility model has the following technical advantages:
1) The three-machine cooling unit changes the open system into the closed system, circularly utilizes the cooling water, saves water resources, and can ensure the quality of the circulating water and prolong the service life of the equipment as the circulating cooling water is treated by the water treatment equipment in advance.
2) The core component of the three-machine cooling unit adopts a high-efficiency circulating water cooling device, the inside of the circulating water cooling device is in modularized design, a plurality of modules are combined in series and parallel, the maintenance and cleaning of partial modules can be achieved without stopping, the normal use effect of the unit is not affected, and the modularized combined structural design has the advantages of easiness in disassembly and assembly and simplicity and convenience in operation.
The above embodiments are not intended to limit the present utility model, and the present utility model is not limited to the above examples, but is also intended to be limited to the following claims.
Claims (10)
1. The utility model provides a three machine cooling unit which characterized in that: the three-machine cooling unit is provided with a circulating water cooling device (4); the circulating water cooling device (4) is communicated with a secondary refrigerant water inlet (a), a secondary refrigerant water outlet (b), a primary refrigerant water inlet (c) and a primary refrigerant water outlet (d);
the secondary refrigerant water outlet (b) is connected with a water inlet of a water channel of the equipment motor to be cooled and is used for providing cooling water for cooling the equipment motor to be cooled; the refrigerant water inlet (a) is connected with a water outlet of a water channel of the equipment motor to be cooled and is used for enabling warm water to enter a three-machine cooling unit to be cooled again to form closed circulation cooling;
and primary coolant water is introduced into the primary coolant water inlet (c), and subjected to heat exchange in the circulating water cooling device (4) and the temperature-rising water, and flows out from the primary coolant water outlet (d) after heat exchange.
2. The three-machine cooling unit according to claim 1, wherein: a hydraulic combined control device (1), an energy buffering device (2) and a water pump unit (3) are arranged between the secondary refrigerant water inlet (a) and the circulating water cooling device (4);
the secondary refrigerant water inlet (a), the hydraulic combined control device (1), the energy buffering device (2), the water pump unit (3) and the circulating water cooling device (4) are sequentially communicated.
3. The three-machine cooling unit according to claim 2, characterized in that: the water pump unit (3) is also connected with the hydraulic combined control device (1) through a pipeline.
4. A triple cooler assembly according to claim 3, wherein: the unit water replenishing of the three-machine cooling unit is introduced through a unit water replenishing port (e), the unit water replenishing port (e) is communicated with a water treatment device (5), and the water treatment device (5) is communicated with the energy buffering device (2).
5. The three-machine cooling unit according to any one of claims 1-4, wherein: the circulating water cooling device (4) comprises a plurality of cooling modules (7), and the plurality of cooling modules are combined in series and/or in parallel to form the circulating water cooling device (4).
6. The three-machine cooling unit according to claim 5, wherein: each cooling module (7) comprises a cooling heat exchange device (70), a secondary refrigerant liquid inlet valve (71) is arranged at a secondary refrigerant inlet of the cooling heat exchange device (70), and a secondary refrigerant liquid outlet valve (73) is arranged at a secondary refrigerant outlet of the cooling heat exchange device (70);
a primary refrigerant liquid inlet valve (76) is arranged at a primary refrigerant inlet of the cooling heat exchange device (70), and a primary refrigerant liquid outlet valve (74) is arranged at a primary refrigerant outlet of the cooling heat exchange device (70).
7. The three-machine cooling unit according to claim 6, wherein: a first pressure sensor (77) is arranged at the liquid outlet end of the primary refrigerant liquid inlet valve (76) and is used for monitoring the inlet pressure of the primary refrigerant; the liquid inlet end of the primary refrigerant liquid outlet valve (74) is provided with a second pressure sensor (78) for monitoring the outlet pressure of the primary refrigerant.
8. The three-machine cooling unit according to claim 7, wherein: a pipeline is communicated between a secondary refrigerant liquid inlet end and a secondary refrigerant liquid outlet end of the cooling heat exchange device (70), and a secondary refrigerant shunt valve (72) is arranged on the pipeline; a pipeline is communicated between a primary refrigerant liquid inlet end and a primary refrigerant liquid outlet end of the cooling heat exchange device (70), and a primary refrigerant shunt valve (75) is arranged on the pipeline.
9. The three-machine cooling unit according to claim 8, wherein: the cooling heat exchange device (70) is connected with pipelines of a secondary refrigerant liquid inlet valve (71), a secondary refrigerant liquid outlet valve (73), a primary refrigerant liquid inlet valve (76) and a primary refrigerant liquid outlet valve (74) through a quick installation interface (79).
10. The three-machine cooling unit according to claim 9, wherein: the three-machine cooling unit is further arranged on a unit frame (8), and the unit frame (8) and the three-machine cooling unit are divided into two parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320764585.9U CN219304639U (en) | 2023-04-10 | 2023-04-10 | Three-machine cooling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320764585.9U CN219304639U (en) | 2023-04-10 | 2023-04-10 | Three-machine cooling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219304639U true CN219304639U (en) | 2023-07-04 |
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ID=86981278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320764585.9U Active CN219304639U (en) | 2023-04-10 | 2023-04-10 | Three-machine cooling unit |
Country Status (1)
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|---|---|
| CN (1) | CN219304639U (en) |
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2023
- 2023-04-10 CN CN202320764585.9U patent/CN219304639U/en active Active
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