CN117440671B - Control method of cooling system of intelligent mining equipment unit - Google Patents
Control method of cooling system of intelligent mining equipment unit Download PDFInfo
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- CN117440671B CN117440671B CN202311770408.2A CN202311770408A CN117440671B CN 117440671 B CN117440671 B CN 117440671B CN 202311770408 A CN202311770408 A CN 202311770408A CN 117440671 B CN117440671 B CN 117440671B
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- 238000001816 cooling Methods 0.000 title claims abstract description 142
- 238000000034 method Methods 0.000 title claims abstract description 69
- 238000005065 mining Methods 0.000 title claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 424
- 239000000498 cooling water Substances 0.000 claims abstract description 102
- 230000001502 supplementing effect Effects 0.000 claims abstract description 58
- 238000007599 discharging Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 239000013589 supplement Substances 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002775 capsule Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20281—Thermal management, e.g. liquid flow control
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
Abstract
The invention provides a control method of a cooling system of an intelligent mining equipment unit, wherein the cooling system comprises a primary side cooling water circulation device, a cooling device, a secondary side water circulation pressure supplementing device and a control device, one side of the cooling device is connected with the primary side cooling water circulation device, the other side of the cooling device is connected with the secondary side water circulation device, and the control device comprises a primary side cooling water circulation control unit, a cooling control unit, a secondary side water circulation control unit and a secondary side water circulation pressure supplementing control unit. Through the structure, the heat of the mining equipment unit can be taken away and cooled through the arrangement of the primary side cooling water circulation device, the cooling device, the secondary side water circulation device and the secondary side water circulation pressure supplementing device, so that the heat exchange speed is increased, and the heat dissipation efficiency is improved; under the control of the control device, different working conditions can be met, so that the device can adapt to complex variable working condition environments and reduce the consumption of electric energy.
Description
Technical Field
The invention relates to the technical field of mining equipment cooling systems, in particular to a control method of a cooling system of an intelligent mining equipment unit.
Background
In the use process of the mining equipment, certain heat is often generated, and in order to ensure the normal operation of the mining equipment, a cooling system is generally connected to the mining equipment for cooling so as to ensure that the temperature of the mining equipment is not too high in the use process. At present, when the existing mining equipment is cooled, the original machine is generally adopted to cool by a cooling module with a fan or a local expansion. The fan cooling module sucks air to cool equipment, but the sucked air dust in the mine is large, and the heat dissipation cooling effect is gradually not ideal after a certain working period; the other type of cooling module is used for taking away the heat of the equipment through low-temperature circulation, but the low-temperature water can only support cooling of a single equipment generally, and cannot meet the cooling requirement of a unit system in which a plurality of equipment work simultaneously. The adoption of the cooling module with a fan or local expansion cannot cope with the environmental change of the working condition of external equipment; when the cooling module of the stand-alone equipment fails, the equipment can not work continuously.
Disclosure of Invention
The invention discloses a control method of a cooling system of an intelligent mining equipment unit, which mainly solves the problems that the heat dissipation effect of the current cooling system is not ideal and the working condition environment of mining equipment cannot be changed.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides a control method of a cooling system of an intelligent mining equipment unit, which comprises a primary side cooling water circulation device, a cooling device, a secondary side water circulation pressure supplementing device and a control device, wherein the secondary side water circulation pressure supplementing device is used for supplementing water to the secondary side water circulation device;
the primary side cooling water circulation device comprises a submersible pump arranged in a plurality of water wells and a plurality of primary side electromagnetic valves connected in parallel, and the plurality of submersible pumps are connected with the cooling device through the plurality of primary side electromagnetic valves connected in parallel after being connected in parallel;
the cooling device comprises a plurality of coolers which are connected in parallel, one side of the cooler is provided with a cooling water inlet and a cooling water outlet, the other side of the cooler is provided with a water circulation inlet and a water circulation outlet, the cooling water inlet of the cooler is connected with a submersible pump to form a primary side cooling water channel, and the cooling water inlet, the water circulation inlet and the water circulation outlet of the cooler are respectively connected with a cooling electromagnetic valve;
the secondary side water circulation device comprises a mining equipment unit formed by connecting a plurality of mining equipment in parallel and a plurality of secondary side circulation pumps connected in parallel, one end of the mining equipment unit is connected with a water circulation inlet of the cooler through the secondary side circulation pump, and the other end of the mining equipment unit is connected with a water circulation outlet of the cooler to form a secondary side water circulation channel;
the primary side cooling water circulation control unit is used for controlling the start and stop of the submersible pumps and the switch of the primary side electromagnetic valve so as to control the submersible pumps to be put into operation or stop operation;
the cooling control unit is used for controlling the on-off of cooling electromagnetic valves of a cooling water inlet, a water circulation inlet and a water circulation outlet of a plurality of coolers so as to control the coolers to be put into operation or stop operation;
the secondary side water circulation control unit is used for controlling the start and stop of a plurality of secondary side circulation pumps;
the secondary side water circulation pressure supplementing control unit is used for controlling the secondary side water circulation pressure supplementing device to supplement water to the secondary side water circulation device.
In one embodiment, an automatic filter washer is connected in series with each of the primary side solenoid valves.
In one embodiment, the primary side cooling water circulation control unit includes a primary side water level sensor provided in the water well and a primary side pressure sensor connected in the primary side cooling water passage, respectively.
In one embodiment, the cooling control unit includes a cooling temperature sensor and a cooling pressure sensor connected to the cooling water inlet, the cooling water outlet, the water circulation inlet, and the water circulation outlet of the cooler, respectively.
In one embodiment, the secondary-side water circulation control unit includes a secondary-side pressure sensor connected in the secondary-side water circulation passage.
In one embodiment, the secondary side water circulation pressure supplementing device comprises a water tank, a water softener, a plurality of pressure supplementing pumps connected in parallel and an expansion tank, wherein one end of the water softener is connected with the water tank, the other end of the water softener is externally connected with a water supply pipeline, the water tank is connected in a secondary side water circulation channel through the pressure supplementing pumps, and the expansion tank is connected in the secondary side water circulation channel.
In one embodiment, the secondary side water circulation pressure-supplementing control unit comprises a pressure-supplementing electromagnetic valve, a pressure-relieving electromagnetic valve and a pressure-supplementing water level sensor, wherein the pressure-supplementing electromagnetic valve is connected between the water tank and the water softener, the pressure-relieving electromagnetic valve and the pressure-supplementing pump are connected between the water tank and the secondary side water circulation channel in parallel, and the pressure-supplementing water level sensor is arranged in the water tank.
In one embodiment, a safety auxiliary device is connected between the secondary side water circulation device and the secondary side water circulation pressure supplementing device, the safety auxiliary device comprises a safety electromagnetic valve, one end of the safety electromagnetic valve is connected between the secondary side water circulation device and the secondary side water circulation pressure supplementing device, and the other end of the safety electromagnetic valve is externally connected with a safety pressure discharging pipeline.
The advantages or beneficial effects in the technical scheme at least comprise: when the mining equipment unit is required to be cooled, the cooling system comprises a primary side cooling water circulation device, a cooling device, a secondary side water circulation pressure supplementing device and a control device, wherein the secondary side water circulation pressure supplementing device is used for supplementing water to the secondary side water circulation device, and the primary side cooling water circulation device comprises a submersible pump arranged in a plurality of water wells and a plurality of primary side electromagnetic valves connected in parallel; the cooling device comprises a plurality of coolers which are connected in parallel, a cooling water inlet, a water circulation inlet and a water circulation outlet of the coolers are respectively connected with a cooling electromagnetic valve, and the secondary side water circulation device comprises a mining equipment unit formed by connecting a plurality of mining equipment in parallel and a plurality of secondary side circulation pumps which are connected in parallel, so that the water used for cooling the mining equipment unit in the secondary side water circulation device can be input into the coolers in the cooling device by the arrangement of the primary side cooling water circulation device, the cooling device, the secondary side water circulation device and the secondary side water circulation pressure supplementing device, and then the water of a water well in the primary side cooling water circulation device is input into the cooling device for cold and heat exchange, thereby taking away and cooling the heat of the mining equipment unit, accelerating the heat exchange speed and improving the heat dissipation efficiency; under controlling means's control, can control immersible pump, cooler and secondary side circulating pump, when one of them immersible pump, cooler and secondary side circulating pump break down or the cooling effect of cooler reduces, can put into operation through other unoperated immersible pump, cooler and secondary side circulating pump of controlling means control to satisfy different operating modes, make can adapt to complicated variable operating mode environment, reduce the consumption of electric energy.
In a second aspect, the invention provides a control method of a cooling system of an intelligent mining equipment unit, which comprises a primary side cooling water circulation control method, a cooling control method, a secondary side water circulation pressure supplementing method and a safety auxiliary control method;
the primary side cooling water circulation control method comprises the following steps: when the primary side water level sensor in the corresponding water well senses that the water level of the water well is lower than a set value, the control device controls the submersible pump in the corresponding water well to stop working, and puts the submersible pumps in other high water level water wells into working; when the primary side pressure sensor senses that the water pressure of the primary side cooling water channel is higher than a preset value, the control device controls the automatic filtering cleaner to perform cleaning; when the cooling temperature sensor at the water circulation outlet of the cooler senses that the water temperature at the water circulation outlet is higher than a preset value, the control device controls the submersible pumps in other wells to be started, so that the other submersible pumps are put into operation to increase the working quantity of the submersible pumps, otherwise, the other submersible pumps are controlled to stop working to reduce the working quantity of the submersible pumps;
the cooling control method includes: when the cooling temperature sensor at the water circulation outlet of the cooler senses that the water temperature at the water circulation outlet is higher than a preset value, the control device controls the cooling water inlets of other coolers, the cooling electromagnetic valves corresponding to the water circulation inlets and the water circulation outlets to be communicated with the corresponding primary side cooling water channel and secondary side water circulation channel, so that the other coolers are put into operation to increase the working quantity of the coolers, otherwise, the control device controls the other coolers to stop working to reduce the working quantity of the coolers; when the pressure difference of the water pressure sensed by the cooling pressure sensor at the cooling water inlet and the cooling water outlet of the cooler is larger than a preset value and/or when the pressure difference of the water pressure sensed by the cooling pressure sensor at the water circulation inlet and the water circulation outlet of the cooler is larger than a preset value, the control device controls the cooling electromagnetic valves of the cooling water inlet, the cooling water outlet, the water circulation inlet and the water circulation outlet of the corresponding cooler to be closed, so that the corresponding cooler stops working;
the secondary side water circulation control method comprises the following steps: when the cooling temperature sensor at the water circulation outlet of the cooler senses that the water temperature at the water circulation outlet is higher than a preset value, the control device controls other secondary side circulation pumps to be put into operation so as to increase the working quantity of the secondary side circulation pumps, otherwise, controls other secondary side circulation pumps to stop working so as to reduce the working quantity of the secondary side circulation pumps; when the working secondary side circulating pump fails, the control device controls other secondary side circulating pumps to work;
the secondary side water circulation pressure supplementing method comprises the following steps: when the secondary side pressure sensor senses that the water pressure of the secondary side water circulation channel is lower than a preset value, the control device controls the pressure compensating pump to start, water in the water tank is conveyed into the secondary side water circulation channel, and otherwise, the pressure compensating pump is controlled to stop working; when the pressure compensating pump in operation fails, the control device controls other pressure compensating pumps to be put into operation; when the secondary side pressure sensor senses that the water pressure of the secondary side water circulation channel is higher than a preset limiting value, the control device controls the pressure relief electromagnetic valve to be opened, so that water in the secondary side water circulation channel flows back into the water tank, and otherwise, the pressure relief electromagnetic valve is controlled to be closed; when the pressure-supplementing water level sensor senses that the water in the water tank is lower than a preset value, the control device controls the pressure-supplementing electromagnetic valve to be opened, so that the water in the water supply pipeline is supplemented into the water tank after being softened by the water softener, and otherwise, the pressure-supplementing electromagnetic valve is controlled to be closed;
the safety auxiliary control method comprises the following steps of; when the secondary side pressure sensor senses that the water pressure of the secondary side water circulation channel is higher than a preset safety value, the control device controls the safety electromagnetic valve to be opened, so that water in the secondary side water circulation channel is discharged through the safety pressure discharge pipeline, and otherwise, the safety electromagnetic valve is controlled to be closed.
In one embodiment, the preset values of the cooling temperature sensors at the water circulation outlets of the plurality of coolers are gradually increased.
The advantages or beneficial effects in the technical scheme at least comprise: in the cooling process of the mining equipment unit, the control method of the cooling system comprises a primary side cooling water circulation control method, a cooling control method, a secondary side water circulation pressure supplementing method and a safety auxiliary control method, so that other equipment which does not work can be automatically put into a working state after failure of working equipment or overload of cooling in the cooling system works under the control of the primary side cooling water circulation control method, the cooling control method, the secondary side water circulation pressure supplementing method and the safety auxiliary control method; and under the cooperation of the cooling device, the secondary side water circulation device and the control device, the working quantity of the secondary side circulation pump can be automatically adjusted according to the cooling effect so as to change the circulation frequency to meet the working conditions of different equipment, so that the device can adapt to complex variable working condition environments and reduce the consumption of energy and electric energy.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.
Fig. 1 illustrates a schematic structural view of a cooling system according to an exemplary embodiment of the present invention;
fig. 2 illustrates a schematic structure of a primary side cooling water circulation device according to an exemplary embodiment of the present invention;
fig. 3 shows a schematic structural view of a cooling device according to an exemplary embodiment of the present invention;
fig. 4 illustrates a schematic structure of a secondary side water circulation device according to an exemplary embodiment of the present invention;
fig. 5 illustrates a schematic structure of a secondary side water circulation pressure compensating device according to an exemplary embodiment of the present invention.
Reference numerals illustrate:
1. a primary side cooling water circulation device;
11. submersible pump; 12. a primary side water level sensor; 13. a primary side solenoid valve; 14. an automatic filtration cleaner; 15. a primary side pressure sensor;
2. a cooling device;
21. a cooler; 22. cooling the electromagnetic valve; 23. cooling the temperature sensor; 24. cooling the pressure sensor;
3. a secondary side water circulation device;
31. a mining equipment unit; 32. a secondary side circulation pump; 33. a secondary pressure sensor;
4. a secondary side water circulation pressure supplementing device;
41. a water tank; 42. a water softener; 43. a pressure supplementing electromagnetic valve; 44. a pressure relief solenoid valve; 45. a pressure compensating water level sensor; 46. a pressure compensating pump; 47. an expansion tank;
5. a control device;
6. a safety auxiliary device;
61. a safety electromagnetic valve.
Detailed Description
Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the invention is susceptible of embodiment in the drawings, it is to be understood that the invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided to provide a more thorough and complete understanding of the invention. It should be understood that the drawings and embodiments of the invention are for illustration purposes only and are not intended to limit the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without collision. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It should be understood that the various steps recited in the method embodiments of the present invention may be performed in a different order and/or performed in parallel. Furthermore, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the invention is not limited in this respect.
Variations of the term "comprising" as used herein are intended to be open-ended, i.e., including, but not limited to. The term "based on" is based at least in part on. The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments. Related definitions of other terms will be given in the description below. It should be noted that the terms "first," "second," and the like herein are merely used for distinguishing between different devices, modules, or units and not for limiting the order or interdependence of the functions performed by such devices, modules, or units.
It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those skilled in the art will appreciate that "one or more" is intended to be construed as "one or more" unless the context clearly indicates otherwise.
The names of messages or information interacted between the devices in the embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of such messages or information.
Examples
Referring to fig. 1 to 4, an embodiment of the present invention provides a cooling system of an intelligent mining equipment unit, including a primary side cooling water circulation device 1, a cooling device 2, a secondary side water circulation device 3, a secondary side water circulation pressure supplementing device 4 for supplementing water to the secondary side water circulation device 3, and a control device 5, wherein one side of the cooling device 2 is connected with the primary side cooling water circulation device 1, the other side is connected with the secondary side water circulation device 3, and the control device 5 includes a primary side cooling water circulation control unit, a cooling control unit, a secondary side water circulation control unit, and a secondary side water circulation pressure supplementing control unit;
the primary side cooling water circulation device 1 comprises a submersible pump 11 arranged in a plurality of water wells and a plurality of primary side electromagnetic valves 13 connected in parallel, wherein the plurality of submersible pumps 11 are connected in parallel and then connected with the cooling device 2 through the plurality of primary side electromagnetic valves 13 connected in parallel;
the cooling device 2 comprises a plurality of coolers 21 which are connected in parallel, one side of each cooler 21 is provided with a cooling water inlet and a cooling water outlet, the other side of each cooler 21 is provided with a water circulation inlet and a water circulation outlet, the cooling water inlets of the coolers 21 are connected with the submersible pump 11 to form a primary side cooling water channel, and the cooling water inlets, the water circulation inlets and the water circulation outlets of the coolers 21 are respectively connected with a cooling electromagnetic valve 22; the primary side cooling water channel is in the flowing direction that water in a water well is pumped into the cooler 21 through the submersible pump 11 to the cooling water inlet of the cooler 21, and then is discharged to other areas through the cooling water outlet of the cooler 21.
The secondary side water circulation device 3 comprises a mining equipment unit 31 formed by connecting a plurality of mining equipment in parallel and a plurality of secondary side circulation pumps 32 connected in parallel, one end of the mining equipment unit 31 is connected with a water circulation inlet of the cooler 21 through the secondary side circulation pumps 32, and the other end is connected with a water circulation outlet of the cooler 21 to form a secondary side water circulation channel; the flow direction of the secondary side water circulation channel is that cooling water in each mining device of the mining device unit 31 is pumped into the cooler 21 through the secondary side circulation pump 32 to the water circulation inlet of the cooler 21, and then is cooled to form circulation through the connection of the water circulation outlet of the cooler 21 and each mining device flowing to the mining device unit 31 after cold-heat exchange of the cooler 21.
The primary side cooling water circulation control unit is used for controlling the start and stop of the plurality of submersible pumps 11 and the switch of the primary side electromagnetic valve 13 so as to control the plurality of submersible pumps 11 to be put into operation or stop operation;
the cooling control unit is used for controlling the opening and closing of the cooling electromagnetic valves 22 of the cooling water inlets, the water circulation inlets and the water circulation outlets of the plurality of coolers 21 so as to control the coolers 21 to be put into operation or stop operation;
the secondary side water circulation control unit is used for controlling the start and stop of a plurality of secondary side circulation pumps 32;
the secondary side water circulation pressure supplementing control unit is used for controlling the secondary side water circulation pressure supplementing device 4 to supplement water to the secondary side water circulation device 3.
With the above structure, when the mining equipment unit 31 needs to be cooled, since the cooling system comprises the primary side cooling water circulation device 1, the cooling device 2, the secondary side water circulation device 3, the secondary side water circulation pressure supplementing device 4 for supplementing water to the secondary side water circulation device 3 and the control device 5, the primary side cooling water circulation device 1 comprises the submersible pump 11 installed in the water wells and the primary side electromagnetic valves 13 connected in parallel; the cooling device 2 comprises a plurality of coolers 21 which are connected in parallel, a cooling water inlet, a water circulation inlet and a water circulation outlet of the coolers 21 are respectively connected with a cooling electromagnetic valve 22, and the secondary side water circulation device 3 comprises a mining equipment unit 31 formed by connecting a plurality of mining equipment in parallel and a plurality of secondary side circulation pumps 32 which are connected in parallel, so that the water for cooling the mining equipment unit 31 in the secondary side water circulation device 3 can be input into the coolers 21 in the cooling device 2 through the arrangement of the primary side cooling water circulation device 1, the cooling device 2, the secondary side water circulation device 3 and the secondary side water circulation pressure supplementing device 4, and then the water of a water well in the primary side cooling water circulation device 1 is input into the cooling device 2 for cold-heat exchange, so that the heat of the mining equipment unit 31 can be taken away for cooling, the heat exchange speed is accelerated, and the heat dissipation efficiency is improved; under the control of the control device 5, the submersible pump 11, the cooler 21 and the secondary side circulating pump 32 can be controlled, when one of the submersible pump 11, the cooler 21 and the secondary side circulating pump 32 fails or the cooling effect of the cooler 21 is reduced, the rest of the non-working submersible pump 11, the cooler 21 and the secondary side circulating pump 32 can be controlled to work through the control device 5 so as to meet different working conditions, adapt to complex variable working condition environments and reduce consumption of electric energy.
In one embodiment, see fig. 1 and 2. An automatic filter cleaner 14 is connected in series to each primary side solenoid valve 13. Wherein each primary side solenoid valve 13 can be connected with a flowmeter (not shown) in series; in practical application, the automatic filter cleaner 14 may be an existing self-cleaning filter, and when the impurity in the water in the filtering well reaches a certain amount, the automatic filter cleaner 14 can be controlled by the control device 5 to perform automatic cleaning, so as to ensure the smoothness of water flowing through the automatic filter cleaner 14.
The primary side cooling water circulation control unit includes primary side water level sensors 12 respectively provided in the water wells and primary side pressure sensors 15 connected in the primary side cooling water passages. In practical application, the primary side pressure sensor 15 is used for sensing the water pressure of the primary side cooling water channel, and when the water pressure is too high, the control device 5 can control the automatic filter cleaner 14 to perform automatic cleaning.
In one embodiment, see fig. 1 and 3. The cooling control unit includes a cooling temperature sensor 23 and a cooling pressure sensor 24 connected to a cooling water inlet, a cooling water outlet, a water circulation inlet, and a water circulation outlet of the cooler 21, respectively. In practical use, the cooling temperature sensor 23 and the cooling pressure sensor 24 are used for sensing the water temperature and the water pressure at the cooling water inlet, the cooling water outlet, the water circulation inlet and the water circulation outlet of the cooler 21, the control device 5 can control the working quantity of the cooler 21 according to the water temperature at the cooling water inlet, the cooling water outlet, the water circulation inlet and the water circulation outlet of the cooler 21, and can judge the leakage and the blockage of the pipeline of the cooler 21 connected with the primary side cooling water circulation device 1 and the secondary side water circulation device 3 according to the water pressure at the cooling water inlet, the cooling water outlet, the water circulation inlet and the water circulation outlet of the cooler 21, and when the leakage and the blockage of the pipeline occur, the control device 5 can control the cooling electromagnetic valve 22 at the cooling water inlet, the cooling water circulation inlet and the water circulation outlet of the cooler 21 to stop the working of the cooler 21.
In one embodiment, see fig. 1 and 4. The secondary-side water circulation control unit includes a secondary-side pressure sensor 33 connected in the secondary-side water circulation passage. In practical use, the secondary side pressure sensor 33 is used to sense the water pressure of the secondary side water circulation channel so as to control the operation of the secondary side water circulation pressure compensating device 4 by the control device 5.
In one embodiment, see fig. 1 and 5. The secondary side water circulation pressure supplementing device 4 comprises a water tank 41, a water softener 42, a plurality of pressure supplementing pumps 46 connected in parallel and an expansion tank 47, one end of the water softener 42 is connected with the water tank 41, the other end of the water softener is externally connected with a water supply pipeline, the water tank 41 is connected in a secondary side water circulation channel through the pressure supplementing pumps 46, and the expansion tank 47 is connected in the secondary side water circulation channel. In practical application, the water tank 41 is used for storing softened water of the water softener 42, the pressure compensating pump 46 is used for pumping softened water in the water tank 41 into the secondary side water circulation channel for pressure compensation, the expansion tank 47 is used for balancing water pressure in the secondary side water circulation channel, and when the water pressure in the secondary side water circulation channel is suddenly changed, the pressure suddenly changed can be adapted through expansion or contraction of a capsule in the expansion tank 47, so that a pipeline of the secondary side water circulation channel is prevented from being directly impacted by the pressure suddenly changed, and the pipeline is protected.
The secondary side water circulation pressure-supplementing control unit comprises a pressure-supplementing electromagnetic valve 43, a pressure-relieving electromagnetic valve 44 and a pressure-supplementing water level sensor 45, wherein the pressure-supplementing electromagnetic valve 43 is connected between the water tank 41 and the water softener 42, the pressure-relieving electromagnetic valve 44 and the pressure-supplementing pump 46 are connected between the water tank 41 and the secondary side water circulation channel in parallel, and the pressure-supplementing water level sensor 45 is arranged in the water tank 41. In practical application, the pressure-compensating electromagnetic valve 43 is used for controlling on-off of the water tank 41 and the water softener 42, the pressure-compensating water level sensor 45 is used for sensing the water level in the water tank 41, when the pressure-compensating water level sensor 45 senses that softened water in the water tank 41 is too low, the control device 5 can control the pressure-compensating electromagnetic valve 43 to be connected with the water tank 41 and the water softener 42, so that water in a water supply pipeline is supplemented into the water tank 41 after being softened by the water softener 42, and otherwise, the pressure-compensating electromagnetic valve 43 is controlled to be closed; the pressure relief electromagnetic valve 44 is used for controlling on-off of the water tank 41 and the secondary side water circulation channel, and when the water pressure of the secondary side water circulation channel is too high, the control device 5 controls the pressure relief electromagnetic valve 44 to be communicated with the water tank 41 and the secondary side water circulation channel, so that water in the secondary side water circulation channel can flow into the water tank 41.
In one embodiment, see FIG. 1. A safety auxiliary device 6 is connected between the secondary side water circulation device 3 and the secondary side water circulation pressure supplementing device 4, the safety auxiliary device 6 comprises a safety electromagnetic valve 61, one end of the safety electromagnetic valve 61 is connected between the secondary side water circulation device 3 and the secondary side water circulation pressure supplementing device 4, and the other end is externally connected with a safety pressure discharging pipeline. In practical application, the safety solenoid valve 61 is used for controlling the on-off of the secondary side water circulation pressure supplementing device 4 and the safety pressure discharging pipeline, when the water pressure in the secondary side water circulation channel is higher than the bearing capacity of the pipeline, the control device 5 controls the safety solenoid valve 61 to be connected with the secondary side water circulation pressure supplementing device 4 and the safety pressure discharging pipeline, so that water can be discharged into the safety pressure discharging pipeline through the secondary side water circulation pressure supplementing device 4 and the safety solenoid valve 61, the pipeline can be protected, and the safety of the pipeline is ensured.
Examples
Referring to fig. 1 to 4, the invention provides a control method of a cooling system of an intelligent mining equipment unit, which comprises a primary side cooling water circulation control method, a cooling control method, a secondary side water circulation pressure supplementing method and a safety auxiliary control method;
the primary side cooling water circulation control method comprises the following steps: when the primary side water level sensor 12 in the corresponding water well senses that the water level of the water well is lower than a set value, the control device 5 controls the submersible pump 11 in the corresponding water well to stop working, and puts the submersible pumps 11 in other high water level water wells into working; when the primary side pressure sensor 15 senses that the water pressure of the primary side cooling water passage is higher than a preset value, the control device 5 controls the automatic filter washer 14 to perform washing; when the cooling temperature sensor 23 at the water circulation outlet of the cooler 21 senses that the water temperature at the water circulation outlet is higher than a preset value, the control device 5 controls the submersible pumps 11 in other wells to be started, so that the other submersible pumps 11 are put into operation to increase the working quantity of the submersible pumps 11, otherwise, controls the other submersible pumps 11 to stop working to reduce the working quantity of the submersible pumps 11;
the cooling control method comprises the following steps: when the cooling temperature sensor 23 at the water circulation outlet of the cooler 21 senses that the water temperature at the water circulation outlet is higher than a preset value, the control device 5 controls the cooling water inlets of other coolers 21, the cooling electromagnetic valves 22 corresponding to the water circulation inlets and the water circulation outlets to be communicated with the corresponding primary side cooling water channels and secondary side water circulation channels, so that the other coolers 21 are put into operation to increase the working quantity of the coolers 21, otherwise, controls the other coolers 21 to stop working to reduce the working quantity of the coolers 21; when the pressure difference of the water pressure sensed by the cooling pressure sensor 24 at the cooling water inlet and the cooling water outlet of the cooler 21 is larger than a preset value and/or when the pressure difference of the water pressure sensed by the cooling pressure sensor 24 at the water circulation inlet and the water circulation outlet of the cooler 21 is larger than a preset value, the control device 5 controls the cooling electromagnetic valves 22 of the cooling water inlet, the cooling water outlet, the water circulation inlet and the water circulation outlet of the corresponding cooler 21 to be closed so as to stop the corresponding cooler 21;
the secondary side water circulation control method comprises the following steps: when the cooling temperature sensor 23 at the water circulation outlet of the cooler 21 senses that the water temperature at the water circulation outlet is higher than a preset value, the control device 5 controls the other secondary side circulation pumps 32 to be put into operation so as to increase the working quantity of the secondary side circulation pumps 32, otherwise, controls the other secondary side circulation pumps 32 to stop working so as to reduce the working quantity of the secondary side circulation pumps 32; when the secondary side circulation pump 32 in operation fails, the control device 5 controls the other secondary side circulation pumps 32 to be put into operation; wherein, the failed secondary side circulating pump 32 can be checked and maintained without stopping the whole equipment, thereby ensuring that the mining equipment unit 31 does not stop working.
The secondary side water circulation pressure supplementing method comprises the following steps: when the secondary side pressure sensor 33 senses that the water pressure of the secondary side water circulation channel is lower than a preset value, the control device 5 controls the pressure supplementing pump 46 to start, water in the water tank 41 is conveyed into the secondary side water circulation channel, and otherwise, the pressure supplementing pump 46 is controlled to stop working; when the working pressure compensating pump 46 fails, the control device 5 controls the other pressure compensating pumps 46 to work; when the secondary side pressure sensor 33 senses that the water pressure of the secondary side water circulation channel is higher than a preset limiting value, the control device 5 controls the pressure relief electromagnetic valve 44 to be opened, so that water in the secondary side water circulation channel flows back into the water tank 41, and otherwise, controls the pressure relief electromagnetic valve 44 to be closed; when the pressure-supplementing water level sensor 45 senses that the water in the water tank 41 is lower than a preset value, the control device 5 controls the pressure-supplementing electromagnetic valve 43 to be opened, so that the water in the water supply pipeline is supplemented into the water tank 41 after being softened by the water softener 42, and otherwise, controls the pressure-supplementing electromagnetic valve 43 to be closed; wherein, the failed pressure compensating pump 46 can be checked and maintained without stopping the whole equipment, thereby ensuring the operation of the secondary side water circulation pressure compensating device 4.
The safety auxiliary control method comprises the following steps of; when the secondary side pressure sensor 33 senses that the water pressure of the secondary side water circulation channel is higher than a preset safety value, the control device 5 controls the safety electromagnetic valve 61 to be opened, so that the water in the secondary side water circulation channel is discharged through the safety pressure discharge pipeline, and otherwise, controls the safety electromagnetic valve 61 to be closed.
With the above structure, in the cooling process of the mining equipment unit 31, since the control method of the cooling system includes the primary side cooling water circulation control method, the cooling control method, the secondary side water circulation pressure supplementing method and the safety auxiliary control method, other equipment which is not in operation can be automatically put into the operation state after failure of the working equipment in the cooling system or overload of cooling is operated under the control of the primary side cooling water circulation control method, the cooling control method, the secondary side water circulation pressure supplementing method and the safety auxiliary control method; and under the cooperation of the cooling device 2, the secondary side water circulation device 3 and the control device 5, the working quantity of the secondary side circulation pump 32 can be automatically adjusted according to the cooling effect so as to change the circulation frequency to meet the working conditions of different equipment, so that the device can adapt to complex variable working condition environments and reduce the consumption of energy and electric energy.
In one embodiment, see fig. 1 and 2. The preset value of the cooling temperature sensor 23 at the water circulation outlet of the plurality of coolers 21 is gradually increased. The preset value of the water pressure of the secondary side water circulation channel can be a pressure range value, the preset limiting value of the water pressure of the secondary side water circulation channel is larger than a preset maximum value, and the preset safety value of the water pressure of the secondary side water circulation channel is larger than the preset limiting value; in practical application, the preset values of the cooling temperature sensors 23 at the water circulation outlets of the plurality of coolers 21 are gradually increased, so that frequent start and stop of the coolers 21 can be reduced, the preset value of the water pressure of the secondary side water circulation channel is a pressure range value, and frequent start and stop of the secondary side water circulation pressure supplementing device 4 can be reduced.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
It will be appreciated by persons skilled in the art that the above embodiments are provided for clarity of illustration only and are not intended to limit the scope of the invention. Other variations or modifications of the above-described invention will be apparent to those of skill in the art, and are still within the scope of the invention.
Claims (9)
1. The control method of the cooling system of the intelligent mining equipment unit is characterized by comprising a primary side cooling water circulation device, a cooling device, a secondary side water circulation pressure supplementing device and a control device, wherein the secondary side water circulation pressure supplementing device is used for supplementing water to the secondary side water circulation device;
the primary side cooling water circulation device comprises a submersible pump arranged in a plurality of water wells and a plurality of primary side electromagnetic valves connected in parallel, and the plurality of submersible pumps are connected with the cooling device through the plurality of primary side electromagnetic valves connected in parallel after being connected in parallel;
the cooling device comprises a plurality of coolers which are connected in parallel, one side of the cooler is provided with a cooling water inlet and a cooling water outlet, the other side of the cooler is provided with a water circulation inlet and a water circulation outlet, the cooling water inlet of the cooler is connected with a submersible pump to form a primary side cooling water channel, and the cooling water inlet, the water circulation inlet and the water circulation outlet of the cooler are respectively connected with a cooling electromagnetic valve;
the secondary side water circulation device comprises a mining equipment unit formed by connecting a plurality of mining equipment in parallel and a plurality of secondary side circulation pumps connected in parallel, one end of the mining equipment unit is connected with a water circulation inlet of the cooler through the secondary side circulation pump, and the other end of the mining equipment unit is connected with a water circulation outlet of the cooler to form a secondary side water circulation channel;
the primary side cooling water circulation control unit is used for controlling the start and stop of the submersible pumps and the switch of the primary side electromagnetic valve so as to control the submersible pumps to be put into operation or stop operation;
the cooling control unit is used for controlling the on-off of cooling electromagnetic valves of a cooling water inlet, a water circulation inlet and a water circulation outlet of a plurality of coolers so as to control the coolers to be put into operation or stop operation;
the secondary side water circulation control unit is used for controlling the start and stop of a plurality of secondary side circulation pumps;
the secondary side water circulation pressure supplementing control unit is used for controlling the secondary side water circulation pressure supplementing device to supplement water to the secondary side water circulation device;
the control method of the cooling system of the intelligent mining equipment unit comprises a primary side cooling water circulation control method, a cooling control method, a secondary side water circulation pressure supplementing method and a safety auxiliary control method;
the primary side cooling water circulation control method comprises the following steps: when the primary side water level sensor in the corresponding water well senses that the water level of the water well is lower than a set value, the control device controls the submersible pump in the corresponding water well to stop working, and puts the submersible pumps in other high water level water wells into working; when the primary side pressure sensor senses that the water pressure of the primary side cooling water channel is higher than a preset value, the control device controls the automatic filtering cleaner to perform cleaning; when the cooling temperature sensor at the water circulation outlet of the cooler senses that the water temperature at the water circulation outlet is higher than a preset value, the control device controls the submersible pumps in other wells to be started, so that the other submersible pumps are put into operation to increase the working quantity of the submersible pumps, otherwise, the other submersible pumps are controlled to stop working to reduce the working quantity of the submersible pumps;
the cooling control method includes: when the cooling temperature sensor at the water circulation outlet of the cooler senses that the water temperature at the water circulation outlet is higher than a preset value, the control device controls the cooling water inlets of other coolers, the cooling electromagnetic valves corresponding to the water circulation inlets and the water circulation outlets to be communicated with the corresponding primary side cooling water channel and secondary side water circulation channel, so that the other coolers are put into operation to increase the working quantity of the coolers, otherwise, the control device controls the other coolers to stop working to reduce the working quantity of the coolers; when the pressure difference of the water pressure sensed by the cooling pressure sensor at the cooling water inlet and the cooling water outlet of the cooler is larger than a preset value and/or when the pressure difference of the water pressure sensed by the cooling pressure sensor at the water circulation inlet and the water circulation outlet of the cooler is larger than a preset value, the control device controls the cooling electromagnetic valves of the cooling water inlet, the cooling water outlet, the water circulation inlet and the water circulation outlet of the corresponding cooler to be closed, so that the corresponding cooler stops working;
the secondary side water circulation control method comprises the following steps: when the cooling temperature sensor at the water circulation outlet of the cooler senses that the water temperature at the water circulation outlet is higher than a preset value, the control device controls other secondary side circulation pumps to be put into operation so as to increase the working quantity of the secondary side circulation pumps, otherwise, controls other secondary side circulation pumps to stop working so as to reduce the working quantity of the secondary side circulation pumps; when the working secondary side circulating pump fails, the control device controls other secondary side circulating pumps to work;
the secondary side water circulation pressure supplementing method comprises the following steps: when the secondary side pressure sensor senses that the water pressure of the secondary side water circulation channel is lower than a preset value, the control device controls the pressure compensating pump to start, water in the water tank is conveyed into the secondary side water circulation channel, and otherwise, the pressure compensating pump is controlled to stop working; when the pressure compensating pump in operation fails, the control device controls other pressure compensating pumps to be put into operation; when the secondary side pressure sensor senses that the water pressure of the secondary side water circulation channel is higher than a preset limiting value, the control device controls the pressure relief electromagnetic valve to be opened, so that water in the secondary side water circulation channel flows back into the water tank, and otherwise, the pressure relief electromagnetic valve is controlled to be closed; when the pressure-supplementing water level sensor senses that the water in the water tank is lower than a preset value, the control device controls the pressure-supplementing electromagnetic valve to be opened, so that the water in the water supply pipeline is supplemented into the water tank after being softened by the water softener, and otherwise, the pressure-supplementing electromagnetic valve is controlled to be closed;
the safety auxiliary control method comprises the following steps of; when the secondary side pressure sensor senses that the water pressure of the secondary side water circulation channel is higher than a preset safety value, the control device controls the safety electromagnetic valve to be opened, so that water in the secondary side water circulation channel is discharged through the safety pressure discharge pipeline, and otherwise, the safety electromagnetic valve is controlled to be closed.
2. The method for controlling a cooling system of an intelligent mining equipment unit according to claim 1, wherein an automatic filter cleaner is connected in series to each of the primary side solenoid valves.
3. The control method of the cooling system of the intelligent mining equipment unit according to claim 1, wherein the primary side cooling water circulation control unit includes primary side water level sensors respectively provided in the water well and primary side pressure sensors connected in the primary side cooling water passage.
4. The control method of the cooling system of the intelligent mining equipment unit according to claim 1, wherein the cooling control unit includes a cooling temperature sensor and a cooling pressure sensor connected to a cooling water inlet, a cooling water outlet, a water circulation inlet and a water circulation outlet of the cooler, respectively.
5. The control method of the cooling system of the intelligent mining equipment unit according to claim 1, wherein the secondary-side water circulation control unit includes a secondary-side pressure sensor connected in a secondary-side water circulation passage.
6. The control method of the cooling system of the intelligent mining equipment unit according to claim 1, wherein the secondary side water circulation pressure supplementing device comprises a water tank, a water softener, a plurality of pressure supplementing pumps connected in parallel and an expansion tank, one end of the water softener is connected with the water tank, the other end of the water softener is externally connected with a water supply pipeline, the water tank is connected into the secondary side water circulation channel through the pressure supplementing pump, and the expansion tank is connected into the secondary side water circulation channel.
7. The method for controlling a cooling system of an intelligent mining equipment unit according to claim 6, wherein the secondary side water circulation pressure-compensating control unit comprises a pressure-compensating electromagnetic valve, a pressure-releasing electromagnetic valve and a pressure-compensating water level sensor, the pressure-compensating electromagnetic valve is connected between the water tank and the water softener, the pressure-releasing electromagnetic valve and the pressure-compensating pump are connected in parallel between the water tank and the secondary side water circulation channel, and the pressure-compensating water level sensor is arranged in the water tank.
8. The control method of the cooling system of the intelligent mining equipment unit according to claim 1, wherein a safety auxiliary device is connected between the secondary side water circulation device and the secondary side water circulation pressure supplementing device, the safety auxiliary device comprises a safety electromagnetic valve, one end of the safety electromagnetic valve is connected between the secondary side water circulation device and the secondary side water circulation pressure supplementing device, and the other end of the safety electromagnetic valve is externally connected with a safety pressure discharging pipeline.
9. The method of controlling a cooling system of an intelligent mining equipment unit according to claim 1, wherein the preset values of the cooling temperature sensors at the water circulation outlets of the plurality of coolers are gradually increased.
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