CN210107861U - Water level interlocking control system in air cooling light and heat unit - Google Patents
Water level interlocking control system in air cooling light and heat unit Download PDFInfo
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- CN210107861U CN210107861U CN201920991812.5U CN201920991812U CN210107861U CN 210107861 U CN210107861 U CN 210107861U CN 201920991812 U CN201920991812 U CN 201920991812U CN 210107861 U CN210107861 U CN 210107861U
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Abstract
The utility model discloses a water level interlocking control system in air cooling light and heat unit belongs to solar energy development and utilization field. A water level interlocking control system in an air cooling photo-thermal unit is characterized in that a circulating water inlet is arranged on a water storage tank, a first outlet of the water storage tank is communicated with inlets of cooling fan sections, and a water delivery pump is arranged between the first outlet and the inlets of the cooling fan sections; the outlet of each cooling fan section is communicated with the first inlet of the water storage tank; a second outlet of the water storage tank is communicated with a water return pipe of the auxiliary machine, and a water replenishing pump is arranged between the second outlet and the water return pipe; the cooling water pipe of the auxiliary machine is communicated with the inlet of the cooling fan section, and the outlet of the cooling fan section is communicated with the return water pipe of the auxiliary machine; the auxiliary machine cooling water pipe is communicated with a second inlet of the water storage tank; valves are arranged on the communicating pipelines, and anti-freezing liquid flows in the communicating pipelines. This chain control system, greatly reduced the light and heat unit because frequently open and stop the frostproofing hidden danger of system that causes, improved the security of equipment operation.
Description
Technical Field
The utility model belongs to solar energy development and utilization field, especially a water level interlocking control system in air cooling light and heat unit.
Background
Solar energy is a clean renewable energy source, which is inexhaustible, and has been developed vigorously in recent years. Solar energy direct radiation resources and available land resources in China are intensively distributed in the northwest region of China, and the northwest region is extremely cold in winter, so the freeze protection situation is particularly severe. When the auxiliary machine system is started under severe cold working conditions in winter, the radiator finned tubes at the tail ends of water flow are frozen due to limited water flow speed in the process of filling cooling media into each cooling sector, and the risk of pipeline blockage is caused. Meanwhile, frequent starting and stopping of the photo-thermal unit can bring the requirement of frequent water charging and discharging of the water storage tank, and if the water level is controlled to be higher than the highest liquid level, the water tank can overflow and discharge water, so that water resources are wasted; meanwhile, particularly in severe cold working conditions in winter, water in each sector of the dry cooling tower cannot enter the water storage tank, namely, the radiator also has the risk of frost cracking, and the overhaul and maintenance period and cost of the equipment are increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a water level interlocking control system in air cooling light and heat unit.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
a water level interlocking control system in an air cooling photo-thermal unit comprises an auxiliary machine cooling water pipe, an auxiliary machine return water pipe, an auxiliary machine dry cooling tower, a water storage tank, a water delivery pump, a water supplementing pump and a plurality of valves, wherein the auxiliary machine dry cooling tower comprises a plurality of cooling fan sections, and the valves are arranged on branches of inlets and outlets of the cooling fan sections;
a circulating water inlet is arranged on the water storage tank, a first outlet of the water storage tank is communicated with inlets of the cooling fan sections, and a water delivery pump is arranged between the first outlet and the inlets of the cooling fan sections; the outlet of each cooling fan section is communicated with the first inlet of the water storage tank;
a second outlet of the water storage tank is communicated with a water return pipe of the auxiliary machine, and a water replenishing pump is arranged between the second outlet and the water return pipe;
the cooling water pipe of the auxiliary machine is communicated with the inlet of the cooling fan section, and the outlet of the cooling fan section is communicated with the return water pipe of the auxiliary machine;
the auxiliary machine cooling water pipe is communicated with a second inlet of the water storage tank;
valves are arranged on the communicating pipelines, and anti-freezing liquid flows in the communicating pipelines.
Further, a liquid level transmitter is arranged on the water storage tank;
when the liquid level displayed by the liquid level transmitter is higher than the highest liquid level, the liquid in the water storage tank is lifted and discharged by the water delivery pump until the liquid amount in the water storage tank is lower than the highest liquid level;
when the liquid level displayed by the liquid level transmitter is lower than the lowest liquid level, circulating water enters the water storage tank through the circulating water inlet until the liquid amount in the water storage tank is higher than the lowest liquid level.
Compared with the prior art, the utility model discloses following beneficial effect has:
the water level interlocking control system in the air-cooled photo-thermal unit can realize water filling, normal operation and water draining of the water level interlocking control system in the air-cooled photo-thermal unit, and the circulating water contains anti-freezing solution; furthermore, the existence of the liquid level transmitter can ensure that the water level of the water storage tank is in a normal range.
Drawings
Fig. 1 is a diagram of the water level interlocking control system in the air cooling photo-thermal unit of the utility model.
Wherein: 1-auxiliary machine cooling water pipe; 2-auxiliary machine return pipe; 3-auxiliary machine dry cooling tower; 4-circulating water inlet; 5, a water storage tank; 6-liquid level transmitter; 7-a water drain pipe; 8-water filling pipeline; 9-water replenishing pump; 10-a water delivery pump; 11-water supplement pipeline; 12-Cooling the sector.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The present invention will be described in further detail with reference to the accompanying drawings:
referring to fig. 1, fig. 1 is a schematic diagram of a water level interlocking control system in the air-cooled photothermal unit of the present invention; the water level interlocking control system in the air-cooled photo-thermal unit comprises an auxiliary machine cooling water pipe 1, an auxiliary machine water return pipe 2, an auxiliary machine dry cooling tower 3, a circulating water inlet 4, a water storage tank 5, a liquid level transmitter 6, a water drain pipe 7, a water filling pipeline 8, a water replenishing pump 9, a water delivery pump 10, a water replenishing pipeline 11 and a cooling fan section 12, wherein the cooling fan section 12 in the figure comprises a first cooling fan section, a second cooling fan section, a third cooling fan section and a fourth cooling fan section;
a liquid level transmitter and a circulating water inlet are arranged on the water storage tank, a first outlet of the water storage tank is communicated with inlets of the cooling fan sections through a water filling pipeline 8, and a water delivery pump is arranged on the water filling pipeline 8; the outlet of each cooling fan section is communicated with the first inlet of the water storage tank through a drain pipe 7; a second outlet of the water storage tank is communicated with an auxiliary machine water return pipe through a water supplementing pipeline 11, and a water supplementing pump is arranged on the water supplementing pipeline 11; the cooling water pipe of the auxiliary machine is communicated with the inlet of the cooling fan section, and the outlet of the cooling fan section is communicated with the return water pipe of the auxiliary machine; the auxiliary machine cooling water pipe is communicated with a second inlet of the water storage tank; valves are arranged on the communicating pipelines; antifreeze is added into circulating water in the control system;
when water is filled, circulating water in the water storage tank enters the branch where the inlets of the cooling fan sections are located from the first outlet through the water delivery pump and enters the corresponding cooling fan sections through the valves; circulating water in the water storage tank enters an auxiliary machine water return pipe through a second outlet and a water replenishing pump;
when the control system normally operates, circulating water in the auxiliary equipment enters a branch where a cooling fan section is located through an auxiliary cooling water pipe, enters the corresponding cooling fan section through a valve on the branch, is cooled in the cooling fan section, and the cooled circulating water enters the auxiliary equipment again through an auxiliary water return pipe;
when the water temperature is lower than the preset temperature, cooling water in the auxiliary machine dry cooling tower flows back to the water storage tank from the first inlet through the outlet of the corresponding cooling fan section;
circulating water in the auxiliary machine cooling water pipe enters the water storage tank from the second inlet;
when the liquid level displayed by the liquid level transmitter is higher than the highest liquid level, the liquid in the water storage tank is lifted and discharged by the water delivery pump until the liquid amount in the water storage tank is lower than the highest liquid level;
when the liquid level displayed by the liquid level transmitter is lower than the lowest liquid level, circulating water enters the water storage tank through the circulating water inlet until the liquid amount in the water storage tank is higher than the lowest liquid level.
The utility model discloses a cooling sector valve door's the state of opening and quantity judge that the cooling sector is in the operating condition, the operation number of cooling sector, it is minimum that the storage water tank 5 under the corresponding cooling sector operating condition is confirmed in the calculation, the highest liquid level, and the moisturizing or the outlet valve of storage water tank 5 are opened to the parallel lock, when guaranteeing winter severe cold operating condition, auxiliary engine system can realize that the flexibility of each cooling sector is opened, also can satisfy the urgent demand of draining of each operation cooling sector. Under severe cold conditions, for example, the ambient temperature is less than or equal to-20 ℃, when the auxiliary machine dry cooling tower has a plurality of cooling sectors to be put into operation, see fig. 1, the utility model discloses take 4 cooling sectors as an example, the minimum, the highest liquid level and the interlocking control method of storage water tank are as follows:
minimum level L when 0 cooling sectors are in operationmin0The volume of the 4 cooling sectors corresponds to the liquid level + the lowest liquid level of the water pump starting; maximum liquid level L when 0 cooling sectors are in operationmax0Total volume V of water storage tankGeneral assembly-a liquid level corresponding to 0 cooling sector volumes;
minimum level L when 1 cooling sector is operatingmin1The volume of each cooling sector is 3, corresponding to the liquid level + the lowest liquid level of a water delivery pump; maximum level L when 1 cooling sector is operatingmax1Total volume V of water storage tankGeneral assembly-a liquid level corresponding to 1 cooling sector volume;
minimum level L when 2 cooling sectors are operatingmin2The volume of 2 cooling sectors corresponds to the liquid level + the lowest liquid level of the water pump; when 2 cooling sectors are in operation, the maximum level Lmax2Total volume V of water storage tankGeneral assembly-a liquid level corresponding to the volume of 2 cooling sectors;
minimum level L when 3 cooling sectors are operatingmin3The volume of 1 cooling sector corresponds to the liquid level + the lowest liquid level of a water delivery pump starting; when 3 cooling sectors are in operation, the maximum level Lmax3Total volume V of water storage tankGeneral assembly-liquid levels corresponding to 3 cooling sector volumes;
minimum level L when 4 cooling sectors are in operationmin4The volume of the cooling fan section is equal to 0, and the corresponding liquid level plus the lowest liquid level of the water pump starting; when 4 cooling sectors are in operation, the maximum level Lmax4Total volume V of water storage tankGeneral assemblyLiquid level corresponding to 4 cooling sector volumes
When the unit normally operates, if the liquid level of the water storage tank 5 is lower than the lowest liquid level of the corresponding cooling sector, the low water level gives an alarm and automatically opens a valve for supplementing circulating water to automatically supplement water to the water storage tank 5; when the liquid level of the water storage tank 5 is higher than the highest liquid level of the corresponding cooling fan section, the high water level alarms, the water supplementing valve of the water storage tank is closed, and redundant liquid in the water storage tank 5 is pumped out through the water delivery pump 10, so that the liquid level of the water storage tank 5 is ensured to be between the highest liquid level and the lowest liquid level of the corresponding cooling fan section.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (2)
1. The water level interlocking control system in the air-cooled photothermal unit is characterized by comprising an auxiliary machine cooling water pipe (1), an auxiliary machine water return pipe (2), an auxiliary machine dry cooling tower (3), a water storage tank (5), a water delivery pump (10), a water supplementing pump (9) and a plurality of valves, wherein the auxiliary machine dry cooling tower (3) comprises a plurality of cooling fan sections, and the valves are arranged on branches of inlets and outlets of the cooling fan sections;
a circulating water inlet (4) is arranged on the water storage tank (5), a first outlet of the water storage tank (5) is communicated with inlets of all cooling fan sections, and a water delivery pump (10) is arranged between the first outlet and each cooling fan section; the outlet of each cooling fan section is communicated with the first inlet of the water storage tank (5);
a second outlet of the water storage tank (5) is communicated with the auxiliary machine water return pipe (2), and a water replenishing pump (9) is arranged between the water storage tank and the auxiliary machine water return pipe;
an auxiliary machine cooling water pipe (1) is communicated with an inlet of the cooling fan section, and an outlet of the cooling fan section is communicated with an auxiliary machine water return pipe (2);
the auxiliary machine cooling water pipe (1) is communicated with a second inlet of the water storage tank (5);
valves are arranged on the communicating pipelines, and anti-freezing liquid flows in the communicating pipelines.
2. The interlocking control system for the water level in the air-cooled photothermal unit according to claim 1, wherein the water storage tank (5) is provided with a liquid level transmitter (6);
when the liquid level displayed by the liquid level transmitter (6) is higher than the highest liquid level, the liquid in the water storage tank (5) is lifted and discharged by the water delivery pump (10) until the liquid amount in the water storage tank (5) is lower than the highest liquid level;
when the liquid level displayed by the liquid level transmitter (6) is lower than the lowest liquid level, circulating water enters the water storage tank (5) through the circulating water inlet (4) until the liquid amount in the water storage tank is higher than the lowest liquid level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920991812.5U CN210107861U (en) | 2019-06-27 | 2019-06-27 | Water level interlocking control system in air cooling light and heat unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920991812.5U CN210107861U (en) | 2019-06-27 | 2019-06-27 | Water level interlocking control system in air cooling light and heat unit |
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| CN210107861U true CN210107861U (en) | 2020-02-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195961A (en) * | 2019-06-27 | 2019-09-03 | 中国电力工程顾问集团西北电力设计院有限公司 | Water level linkage control system and its chain control method in a kind of air-cooled photo-thermal unit |
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2019
- 2019-06-27 CN CN201920991812.5U patent/CN210107861U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195961A (en) * | 2019-06-27 | 2019-09-03 | 中国电力工程顾问集团西北电力设计院有限公司 | Water level linkage control system and its chain control method in a kind of air-cooled photo-thermal unit |
| CN110195961B (en) * | 2019-06-27 | 2024-02-06 | 中国电力工程顾问集团西北电力设计院有限公司 | Water level linkage control system in air cooling photo-thermal unit and linkage control method thereof |
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