CN217519983U - Cooling water system of cold areas interrupted operation - Google Patents
Cooling water system of cold areas interrupted operation Download PDFInfo
- Publication number
- CN217519983U CN217519983U CN202221239696.XU CN202221239696U CN217519983U CN 217519983 U CN217519983 U CN 217519983U CN 202221239696 U CN202221239696 U CN 202221239696U CN 217519983 U CN217519983 U CN 217519983U
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- cooling water
- cooling
- pipe
- slurry
- pump
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- 239000000498 cooling water Substances 0.000 title claims abstract description 116
- 238000001816 cooling Methods 0.000 claims abstract description 92
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 38
- 239000002002 slurry Substances 0.000 claims description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 54
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 239000003673 groundwater Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
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Abstract
The utility model relates to a cooling water system which runs discontinuously in cold areas, which comprises an indoor cooling device arranged at an indoor factory building part, an outdoor cooling device arranged at an outdoor part and an underground cooling device arranged at a groundwater pump room; the utility model can effectively prevent the cooling backwater in the severe cold area from being frozen when passing through the cooling tower due to low temperature; the temperature of the cooling water and the cooled speed reducer oil on each key flow passage can be monitored in real time; the flow of cooling water can be adjusted through the opening of various adjusting valves and the temperature of the cooling water, so that efficient cooling is achieved; can guarantee that initial temperature during initial severe cold is low excessively through heating cooling water tank, upward freeze.
Description
Technical Field
The utility model relates to a pipeline transportation engineering application especially relates to a cooling water system of cold area discontinuous operation.
Background
Pipeline transportation is an important transportation mode and is widely applied to the fields of mineral products, chemical industry and energy in China. The slurry pipeline is more and more accepted by the mineral industry at present due to the unique advantages of high efficiency, cleanness, energy conservation, safety, environmental protection and the like, and the slurry pipeline shows a good development trend at present. Due to the two-phase flow characteristic of slurry conveying, the core slurry conveying equipment usually adopts a reciprocating displacement pump, and the diaphragm pump is most widely applied. When the large diaphragm pump operates for a long period, the reduction gearbox equipment needs an independent cooling water system for cooling so as to ensure the safety of the equipment.
The cooling fan part of the existing cooling water system is often arranged outdoors. In northern cold areas, the system can achieve good cooling effect by means of a cooling fan and outdoor low temperature during long-period operation. However, when the cooling tower is operated intermittently in severe cold winter, because each device in the cooling tower forms low temperature, when water flows through the large-section cooling surface in the cooling tower, the water is frozen instantly to form blockage of a flow passage in the tower, and the operation cannot be carried out. Indirectly cause the main conveying equipment to be incapable of operating normally.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cooling water system of cold region discontinuous operation to prior art's not enough, can be according to different temperature conditions, through adjusting the technology valve, change cooling water working flow channel, combine heating system, guarantee under the different temperatures, cooling water system all can normally start to ensure that the circulating water can remain throughout at suitable operating temperature, prevent overheated or go up to freeze.
The utility model discloses an adopt following technical scheme to realize:
a cooling water system for intermittent operation in cold regions comprises an indoor cooling device arranged at an indoor plant part, an outdoor cooling device arranged at an outdoor part and an underground cooling device arranged at an underground water pump room;
the indoor cooling device includes: the device comprises a slurry conveying device, a speed reducer oil return pipe, a speed reducer oil feeding pipe, a speed reducer oil circulating pump, a plate heat exchanger, a cooling water return pipe and a cooling water feeding pipe;
the outdoor cooling device includes: the cooling tower, the cooling return water by-pass pipe and the cooling return water main inlet pipe are arranged;
the underground cooling device comprises: cooling water pump, cooling water tank, demineralized water device.
Preferably, the slurry conveying device comprises a slurry outlet pipeline, a slurry outlet valve, a slurry conveying pump, a slurry pump inlet valve, a slurry inlet pipeline, a conveying pump speed reducer and a main motor;
the main motor controls the slurry delivery pump, a delivery pump speed reducer is arranged between the main motor and the slurry delivery pump, the slurry outlet pipeline and the slurry inlet pipeline are respectively arranged at an inlet and an outlet of the slurry delivery pump, and a slurry outlet valve and a slurry pump inlet valve are arranged on the slurry outlet pipeline and the slurry inlet pipeline;
and the cooling water return pipe, the cooling water feeding pipe, the speed reducer oil return pipe and the speed reducer oil feeding pipe are respectively connected with the plate heat exchanger.
Preferably, a speed reducer oil circulating pump is installed on the speed reducer oil feeding pipe, and a first thermometer is installed on the speed reducer oil return pipe.
Preferably, a second thermometer is installed on the cooling water return pipeline.
Preferably, the cooling water supply pipe is divided into a cooling water supply bypass pipeline, a first stop valve, a flowmeter and a first regulating valve are sequentially installed on the cooling water supply pipe main pipeline, and a sixth stop valve is installed on the cooling water supply bypass pipeline of the cooling water supply pipe.
Preferably, the cooling return water pipe is divided into a cooling return water bypass pipe, a second stop valve and a cooling tower are installed on the cooling return water pipe main line, the cooling tower comprises a cooling fan, a third stop valve is installed on the cooling return water bypass pipe, the cooling return water pipe main line and the cooling return water bypass pipe converge into a cooling return water main inlet pipe, and a first butterfly valve is installed on the cooling return water main inlet pipe.
Preferably, the inlet pipeline of the cooling water pump is provided with a second butterfly valve, and the outlet pipeline of the cooling water pump is sequentially provided with a vent ball valve, a check valve and a second regulating valve.
Preferably, the cooling water tank is respectively provided with a liquid level meter, a third thermometer and an electric heat tracing wire.
Preferably, the water softening device comprises water softening equipment, an outdoor water supply pipe network is installed on an inlet pipeline of the water softening equipment, a fifth stop valve is installed on the outdoor water supply pipe network, and a fourth stop valve is installed on an outlet pipeline of the water softening equipment.
Compared with the prior art, the utility model discloses following profitable technological effect has:
1. the system can effectively prevent the cooling return water in the severe cold area from being frozen when passing through the cooling tower due to low temperature;
2. the system can monitor the temperature of cooling water and cooled speed reducer oil on each key flow passage in real time;
3. the system can adjust the flow of cooling water through the opening of various adjusting valves and the temperature of the cooling water, thereby achieving high-efficiency cooling;
4. this system can guarantee that initial temperature during initial severe cold is low excessively through heating cooling water tank, freezes.
Drawings
The utility model is further described with the following drawings:
fig. 1 is a schematic view of a cooling water system according to the present invention.
Description of the reference numerals
1. A slurry outlet conduit; 2. slurry pump outlet valve; 3. a slurry delivery pump; 4. an inlet valve of the slurry pump; 5. a slurry inlet conduit; 6. a first thermometer; 7. a speed reducer oil return pipe; 8. a delivery pump reducer; 9. a main motor; 10. an oil feeding pipe for the speed reducer oil; 11. a speed reducer oil circulating pump; 12. a plate heat exchanger; 13. a cooling water return pipe; 14. a second thermometer; 15. adjusting a valve I; 16. a stop valve six; 17. a flow meter; 18. a first stop valve; 19. cooling the water feeding pipe; 20. a second stop valve; 21. a cooling tower; 22. a cooling fan; 23. a third stop valve; 24. A cooling return water bypass pipe; 25. a cooling return water main inlet pipe; 26. a first butterfly valve; 27. a second regulating valve; 28. a check valve; 29. a blow-down ball valve; 30. a cooling water pump; 31. a second butterfly valve; 32. a liquid level meter; 33. a cooling water tank; 34. a third thermometer; 35. electrically tracing a heating wire; 36. a stop valve IV; 37. a water softening device; 38. a fifth stop valve; 39. outdoor water supply pipe network.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in fig. 1: a cooling water system for intermittent operation in cold regions comprises an indoor cooling device arranged at an indoor plant part, an outdoor cooling device arranged at an outdoor part and an underground cooling device arranged at an underground water pump room;
the indoor cooling device includes: the device comprises a slurry conveying device, a speed reducer oil return pipe 7, a speed reducer oil feeding pipe 10, a speed reducer oil circulating pump 11, a plate heat exchanger 12, a cooling water return pipe 13 and a cooling water feeding pipe 19;
the outdoor cooling device includes: a cooling tower 21, a cooling return water bypass pipe 24 and a cooling return water main inlet pipe 25;
the underground cooling device comprises: a cooling water pump 30, a cooling water tank 33 and a water softening device 37.
In this embodiment, the slurry conveying device includes a slurry outlet pipeline 1, a slurry pump outlet valve 2, a slurry conveying pump 3, a slurry pump inlet valve 4, a slurry inlet pipeline 5, a conveying pump speed reducer 8, and a main motor 9;
the main motor 9 controls the slurry delivery pump 3, a delivery pump speed reducer 8 is arranged between the main motor 9 and the slurry delivery pump 3, the slurry outlet pipeline 1 and the slurry inlet pipeline 5 are respectively arranged at an inlet and an outlet of the slurry delivery pump 3, and the slurry outlet pipeline 1 and the slurry inlet pipeline 5 are provided with a slurry pump outlet valve 2 and a slurry pump inlet valve 4;
and the cooling water return pipe 13, the cooling water feeding pipe 19, the speed reducer oil return pipe 7 and the speed reducer oil feeding pipe 10 are respectively connected with the plate type heat exchanger 12 and used for heat exchange.
In this embodiment, a speed reducer oil circulating pump 11 is installed on the speed reducer oil feeding pipe 10, and a first thermometer 6 is installed on the speed reducer oil return pipe 7.
In this embodiment, a second thermometer 14 is attached to the cooling water return pipe 13.
In this embodiment, the cooling water supply pipe 19 is divided into a cooling water supply bypass line, a first stop valve 18, a flow meter 17 and a first regulating valve 15 are sequentially installed on the main line of the cooling water supply pipe 19, and a sixth stop valve 16 is installed on the cooling water supply bypass line of the cooling water supply pipe 19.
In this embodiment, a cooling return water bypass pipe 24 is divided on the cooling return pipe 13, a second stop valve 20 and a cooling tower 21 are installed on a main path of the cooling return pipe 13, the cooling tower 21 includes a cooling fan 22, a third stop valve 23 is installed on the cooling return water bypass pipe 24, the main path of the cooling return pipe 13 and the cooling return water bypass pipe 24 converge into a cooling return water main inlet pipe 25, and a first butterfly valve 26 is installed on the cooling return water main inlet pipe 25.
In this embodiment, the second butterfly valve 31 is installed in the inlet pipeline of the cooling water pump 30, and the second purge ball valve 29, the check valve 28, and the second regulating valve 27 are installed in this order in the outlet pipeline of the cooling water pump 30.
In the embodiment, the liquid level meter 32, the thermometer three 34 and the electric tracing wire 35 are respectively arranged on the cooling water tank 33, so that the liquid level of the cooling water tank 33 can be ensured to be sufficient, and the temperature of the cooling water tank 33 can be ensured.
In this embodiment, the water softening device 37 includes a water softening device, an outdoor water supply network 39 is installed on an inlet pipeline of the water softening device, a stop valve five 38 is installed on the outdoor water supply network 39, and a stop valve four 36 is installed on an outlet pipeline of the water softening device, and is used for filtering and softening the cooling water.
The working principle is as follows: ensuring that the liquid level of the cooling water tank 33 is sufficient, and when the temperature of the liquid level in the cooling water tank 33 is lower than 15-20 ℃, turning on the electric tracing heating wire 35 to ensure that the temperature is above 20 ℃, and turning off the electric tracing heating wire 35; opening a regulating valve I15 and a stop valve I18 of the flow meter 17, closing a bypass stop valve 16, and putting the flow meter 17; closing a second stop valve 20 at the inlet of the cooling tower 21, opening a third stop valve 23, and putting a cooling return water bypass pipe 24; after the second regulating valve 27 at the outlet of the cooling water pump 30 is ensured to be unblocked to the flow passage of the cooling water tank 33, the second butterfly valve 31 at the inlet of the cooling water pump 30 is opened, the cooling water pump 30 is started, and the second regulating valve 27 is opened; when the cooling water starts to operate stably in the cooling water return bypass pipe 24, the speed reducer oil circulating pump 11 is started; after the operation is stable, the slurry delivery pump 3 can be started to start ore pulp delivery; when the temperature of the cooling water tank 33 gradually rises to 25-30 ℃, the cooling water tank can be put into the cooling tower 21, the cooling return water bypass pipe 24 is cut off, and then the cooling fan is started according to the temperature condition, so that the cooling effect is enhanced.
In the whole operation process of the system, the cooling effect of cooling water can be judged through the flowmeter and various thermometers, whether the liquid level of the cooling water tank is met or not is judged through the liquid level meter, and the flow of the cooling water is adjusted through various adjusting valves.
When the outdoor temperature is higher than zero, the whole system has no freezing risk, the electric tracing heating wire does not need to be started, and the cooling return water bypass pipe does not need to be started.
When the outdoor cooling tower is in severe cold weather, the overall temperature of the outdoor cooling tower is low, and the freezing risk exists when the cooling system is started. Through electric heat tracing wire, the cooling water tank thermometer stores water in to cooling water tank and carries out whole intensification, and the guarantee cooling water has certain freeze proof ability through the pipeline. After the cooling water pump is started, the cooling water return bypass pipe is utilized, cooling water does not pass through a cooling tower, and directly enters a cooling water tank, so that the purpose of cooling speed reducer oil is achieved, and the cooling water is prevented from being frozen through the cooling tower.
When the outdoor cooling tower is in severe cold weather, the overall temperature of the outdoor cooling tower is lower, after a cooling water system is started, the opening of various regulating valves is timely regulated according to various thermometers so as to regulate the flow rate of cooling water, ensure the cooling effect and gradually raise the temperature of the cooling water, when the temperature reaches the expectation, the overall temperature of the cooling water is higher, the cooling water can be put into the cooling tower, and the system can carry out efficient cooling under the action of the cooling tower.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A cooling water system for intermittent operation in cold regions is characterized by comprising an indoor cooling device arranged at an indoor factory building part, an outdoor cooling device arranged at an outdoor part and an underground cooling device arranged at an underground water pump room;
the indoor cooling device includes: the device comprises a slurry conveying device, a speed reducer oil return pipe (7), a speed reducer oil feeding pipe (10), a speed reducer oil circulating pump (11), a plate heat exchanger (12), a cooling water return pipe (13) and a cooling water feeding pipe (19);
the outdoor cooling device includes: a cooling tower (21), a cooling water return by-pass pipe (24) and a cooling water return main inlet pipe (25);
the underground cooling device comprises: a cooling water pump (30), a cooling water tank (33) and a water softening device (37).
2. The cooling water system intermittently operating in cold regions as claimed in claim 1, wherein said slurry delivery means comprises a slurry outlet pipe (1), a slurry pump outlet valve (2), a slurry delivery pump (3), a slurry pump inlet valve (4), a slurry inlet pipe (5), a delivery pump speed reducer (8), and a main motor (9);
the main motor (9) controls the slurry delivery pump (3), a delivery pump speed reducer (8) is installed between the main motor (9) and the slurry delivery pump (3), the slurry outlet pipeline (1) and the slurry inlet pipeline (5) are respectively installed at an inlet and an outlet of the slurry delivery pump (3), and the slurry outlet pipeline (1) and the slurry inlet pipeline (5) are provided with a slurry pump outlet valve (2) and a slurry pump inlet valve (4);
and the cooling water return pipe (13), the cooling water feeding pipe (19), the reducer oil return pipe (7) and the reducer oil feeding pipe (10) are respectively connected with the plate heat exchanger (12).
3. The intermittently operating cooling water system in cold districts according to claim 1, wherein a speed reducer oil circulating pump (11) is installed in the speed reducer oil supply pipe (10) line, and a first thermometer (6) is installed in the speed reducer oil return pipe (7) line.
4. The intermittent operation cooling water system in the cold district as claimed in claim 1, characterized in that a second thermometer (14) is installed on the cooling water return pipe (13) pipeline.
5. The intermittent operation cooling water system in the cold area as claimed in claim 1, wherein a cooling water supply bypass pipeline is arranged on the cooling water supply pipe (19), a stop valve I (18), a flow meter (17) and a regulating valve I (15) are sequentially arranged on the cooling water supply pipe (19), and a stop valve II (16) is arranged on the cooling water supply bypass pipeline of the cooling water supply pipe (19).
6. The intermittent operation cooling water system in the cold area as claimed in claim 1, wherein a cooling water return by-pass pipe (24) is divided from the cooling water return pipe (13), a second stop valve (20) and a cooling tower (21) are installed on a main path of the cooling water return pipe (13), the cooling tower (21) comprises a cooling fan (22), a third stop valve (23) is installed on the cooling water return by-pass pipe (24), the main path of the cooling water return pipe (13) and the cooling water return by-pass pipe (24) are converged into a cooling water return main inlet pipe (25), and a first butterfly valve (26) is installed on the cooling water return main inlet pipe (25).
7. An intermittent cold region cooling water system according to claim 1, wherein a second butterfly valve (31) is installed on an inlet pipeline of the cooling water pump (30), and a vent ball valve (29), a check valve (28) and a second regulating valve (27) are sequentially installed on an outlet pipeline of the cooling water pump (30).
8. The intermittently operating cooling water system in cold districts according to claim 1, wherein a liquid level gauge (32), a thermometer III (34), and an electric tracing wire (35) are installed on the cooling water tank (33), respectively.
9. An intermittently operating cooling water system in cold districts as claimed in claim 1, wherein said water softening means (37) comprises a water softening apparatus, an outdoor water supply pipe network (39) is installed on an inlet pipeline of said water softening apparatus, a stop valve five (38) is installed on said outdoor water supply pipe network (39), and a stop valve four (36) is installed on an outlet pipeline of said water softening apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221239696.XU CN217519983U (en) | 2022-05-23 | 2022-05-23 | Cooling water system of cold areas interrupted operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221239696.XU CN217519983U (en) | 2022-05-23 | 2022-05-23 | Cooling water system of cold areas interrupted operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217519983U true CN217519983U (en) | 2022-09-30 |
Family
ID=83389048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221239696.XU Expired - Fee Related CN217519983U (en) | 2022-05-23 | 2022-05-23 | Cooling water system of cold areas interrupted operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217519983U (en) |
-
2022
- 2022-05-23 CN CN202221239696.XU patent/CN217519983U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |