CN220119899U - Energy-saving and anti-freezing system for indirect cooling tower in winter - Google Patents
Energy-saving and anti-freezing system for indirect cooling tower in winter Download PDFInfo
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- CN220119899U CN220119899U CN202321088368.9U CN202321088368U CN220119899U CN 220119899 U CN220119899 U CN 220119899U CN 202321088368 U CN202321088368 U CN 202321088368U CN 220119899 U CN220119899 U CN 220119899U
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- 238000001816 cooling Methods 0.000 title claims abstract description 309
- 238000007710 freezing Methods 0.000 title claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 396
- 238000001514 detection method Methods 0.000 claims description 19
- 239000010865 sewage Substances 0.000 claims description 14
- 230000033228 biological regulation Effects 0.000 claims description 3
- 230000008014 freezing Effects 0.000 abstract description 7
- 239000003245 coal Substances 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 5
- 239000003570 air Substances 0.000 description 14
- 239000000498 cooling water Substances 0.000 description 8
- 239000012080 ambient air Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 230000002528 anti-freeze Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a winter energy-saving anti-freezing system of an indirect cooling tower, which comprises an indirect cooling tower, wherein the inner side of the indirect cooling tower is connected with a cold water pipe, a drain pipe and a hot water pipe, the outer side of the indirect cooling tower is connected with an exhaust pipe, a cooling triangle is arranged on the indirect cooling tower, a plurality of groups of cooling triangles are arranged in the indirect cooling tower, an A pipeline, a B pipeline and a C pipeline are also arranged in the indirect cooling tower, the exhaust pipe is connected with the A pipeline, the top end of a tube bundle in the cooling triangle is also connected with the A pipeline, one bottom end of the tube bundle in the cooling triangle is connected with the B pipeline, the other bottom end of the tube bundle in the cooling triangle is connected with the C pipeline, the cold water pipe is also connected with the C pipeline, a D pipeline is arranged between the cold water pipe and the hot water pipe, and the drain pipe is connected with the D pipeline. The utility model changes the circulating water flow direction of each sector in the indirect cooling tower by changing the connection of the circulating water pipeline in each sector, namely changing the countercurrent flow of the radiator into the forward flow, can directly reduce the coal consumption and the electricity consumption of the power plant in winter, and simultaneously prevents the tube bundles of the indirect cooling tower from freezing in winter.
Description
Technical Field
The utility model relates to an indirect cooling tower energy-saving and anti-freezing system in winter, and belongs to the technical field of indirect cooling towers.
Background
The indirect air cooling system is used as an effective water-saving thermal power generation cooling technology, is one of the main power plant cooling system modes newly adopted in water-deficient areas such as northwest China, and the exhaust steam discharged by the steam turbine enters the condenser and is cooled by the cooling water of the indirect air cooling system; the cooled exhaust steam returns to the boiler to realize cyclic utilization; the cooled cooling water with increased temperature enters an indirect air cooling system, the temperature is reduced through natural ventilation, and then the cooling water enters a condenser again to cool exhaust steam, so that recycling is realized. An air cooling tube bundle (also called a cooling triangle) of the indirect air cooling system is vertically arranged at the bottom of the cooling tower. Air flows outside the tube bundle, and cooling water cools down inside the tube bundle. The bottom of the cooling tower is provided with a shutter for adjusting the air quantity.
The temperature is extremely low in winter in the north in general, and the antifreeze pressure of the indirect cooling tower is extremely high, and the conventional means are as follows:
1. the water temperature is controlled by the shutter. The air inlet side of the cooling triangle is provided with a shutter which can be used for adjusting the outlet water temperature of circulating water of each cooling sector. If the ambient temperature is low, the vacuum in the condenser is too low, and the back pressure value of the steam turbine is reached, the indirect cooling tower needs to reduce the heat dissipation capacity by reducing the output of the circulating pump, reducing the operation of a circulating water pump or closing part of shutters. The shutter opening degree adjustment is controlled by an ambient air temperature sensor and a cooling sector circulating water outlet temperature sensor. The winter temperature control can adopt an operation mode that when the ambient temperature is less than 2 ℃, if the pressure of the condenser is greater than the blocking backpressure and the outlet temperature of the cooling sector is greater than 28 ℃, the shutter is opened and adjusted, the back pressure of the condenser is less than the blocking backpressure and the outlet temperature of the cooling sector is less than 28 ℃, and the shutter is closed and adjusted. The operation control mode is primary anti-freezing protection of the air cooler. When the water outlet temperature of the cooling sector is less than 21 ℃, the corresponding sector shutter is closed to increase the water temperature of the sector. The operation control mode is the secondary anti-freezing protection of the air cooler.
2. The frost cracking of the cooling triangle is prevented by the secondary anti-freezing protection of the indirect cooling system. When the water outlet temperature of a certain sector is less than 16 ℃, the delayed temperature is not raised, so as to prevent the cooling triangle from frost cracking, the cooling sector needs to automatically drain water, the water level of an upright pipe at the top of the cooling sector is lower than 1m in a winter running mode, the water level is still low after delay for 1min, the cooling sector needs to automatically drain water, the cooling sector fails in the water filling process, and the sector automatically drains water.
3. The emergency water drain valve is opened to drain water to the whole indirect cooling tower air cooler to realize the anti-freezing of the indirect cooling tower. The emergency water drain valve is automatically opened when the cooling sector is subjected to protective water drain and a fault occurs in the water drain process, the ambient air temperature is lower than 2 ℃, the cooling sector is provided with water, and all circulating water pumps stop running. In addition, the emergency water drain valve can be opened through a button on the screen, and water in all cooling sectors can be leaked to the underground water storage tank within 3min, so that the water in the air cooler can not be frozen. The operation control mode is four-stage anti-freezing protection of the indirect cooling system.
4. And (5) controlling water filling and freezing prevention of the cooling sector. In winter, the temperature of air in the indirect cooling tower is lower than 2 ℃, and when the temperature of water in the water inlet pipe of the tower is higher than 40 ℃, the shutters of the water filling sector are all closed, and meanwhile, two circulating water pumps are operated, water is allowed to fill the cooling sector. The water filling process cannot be too long, and the water temperature in the sector is controlled to be too low for avoiding icing.
5. And the high-level water tank is protected from freezing. If water exists in the high-level water tank, the temperature of air in the indirect cooling tower is lower than 2 ℃, the water temperature of the high-level water tank is lower than 12 ℃, an anti-freezing protection program of the high-level water tank is started to replace the water in the high-level water tank, the water supplementing pump conveys the hot water in the underground water storage tank to the high-level water tank, and cooling water in the high-level water tank is discharged into the underground water storage tank through the overflow valve.
The combination of the above means is essentially that two points are: 1. the back pressure of the steam turbine is increased to increase the temperature of circulating water, and the running number of the circulating pumps is increased to increase the flow speed, so that the coal consumption and the electricity consumption are increased. In other aspects, during winter operation, the shutter is closed or the sector is stopped to drain water, so that extra work is added to operators, the flexibility and the adjustment range of the indirect cooling tower are reduced, and if the tube bundles are frozen, great economic loss is caused.
Disclosure of Invention
The utility model aims to provide an energy-saving and anti-freezing system for an indirect cooling tower in winter, which changes the circulating water flow direction of each sector in the indirect cooling tower by changing the connection of the circulating water pipeline in each sector, namely, changing the reverse flow of a radiator into the forward flow, can directly reduce the coal consumption and the electricity consumption of the power plant in winter, simultaneously prevent the tube bundles of the indirect cooling tower from freezing in winter, achieve the requirements of energy saving and anti-freezing, and reduce the working strength of operators.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides an energy-conserving anti-freezing system in cold-water tower winter, includes the cold-water tower, the cold-water pipe, blow off pipe and hot-water line are connected with to the cold-water tower inboard, the cold-water tower outside is connected with the blast pipe, be provided with the cooling triangle on the cold-water tower, the cooling triangle is provided with the multiunit, the cooling triangle includes cooling triangle shutter and cooling triangle inner tube bundle, the cooling triangle shutter is connected with cooling triangle inner tube bundle, be connected with shutter regulation executor between two adjacent sets of cooling triangle shutter, still be provided with A pipeline in the cold-water tower, B pipeline and C pipeline, the blast pipe is connected in A pipeline, the top of cooling triangle inner tube bundle is also connected in A pipeline, a bottom of cooling triangle inner tube bundle is connected in B pipeline, another bottom of cooling triangle inner tube bundle is connected in C pipeline, cold water line is also connected in C pipeline, be provided with D pipeline between cold-water pipe and the hot-water line, blow off pipe is connected in D pipeline.
The energy-saving and anti-freezing system for the indirect cooling tower in winter is characterized in that the inlet end of the cooling water pipe is connected with a forward flow Cheng Lengshui water return pipe and a reverse flow Cheng Lengshui water return pipe, one end of the forward flow Cheng Lengshui water return pipe is connected with the inlet end of the cooling water pipe, the other end of the forward flow Cheng Lengshui water return pipe is connected with a C pipeline, one end of the reverse flow Cheng Lengshui water return pipe is connected with the inlet end of the cooling water pipe, the other end of the reverse flow Cheng Lengshui water return pipe is connected with a B pipeline, and one end of the D pipeline is connected with the reverse flow Cheng Lengshui water return pipe.
The energy-saving and anti-freezing system for the indirect cooling tower comprises a hot water pipe, wherein an outlet end of the hot water pipe is connected with a forward flow hot water return pipe and a reverse flow hot water return pipe, one end of the forward flow hot water return pipe is connected with the outlet end of the hot water pipe, the other end of the forward flow hot water return pipe is connected with a pipeline B, one end of the reverse flow hot water return pipe is connected with the outlet end of the hot water pipe, the other end of the reverse flow hot water return pipe is connected with a pipeline C, and the other end of the pipeline D is connected with the reverse flow hot water return pipe.
In the energy-saving and anti-freezing system for the indirect cooling tower in winter, the forward flow Cheng Lengshui backwater shutoff valve is arranged on the forward flow Cheng Lengshui backwater pipe.
According to the energy-saving and anti-freezing system for the indirect cooling tower in winter, the countercurrent Cheng Lengshui backwater pipe is provided with the countercurrent Cheng Lengshui backwater shutoff valve and the temperature detection instrument.
In the indirect cooling tower winter energy-saving anti-freezing system, the forward flow hot water return water pipe is provided with the forward flow hot water return water shutoff valve and the temperature detection instrument.
In the indirect cooling tower winter energy-saving anti-freezing system, the countercurrent hot water return pipe is provided with the countercurrent hot water return shutoff valve.
In the foregoing energy-saving and antifreezing system for indirect cooling towers in winter, the pipeline D is provided with the water drain valve A and the water drain valve B, the water drain valve A is arranged between the sewage drain pipe and the countercurrent cold water return pipe, and the water drain valve B is arranged between the sewage drain pipe and the countercurrent hot water return pipe.
In the energy-saving and anti-freezing system for the indirect cooling tower in winter, an A balance pipe is arranged between the A pipeline and the counter-flow cold water return pipe; a balance pipe improves the temperature of circulating water at the tail end of the cooling triangle, avoids freezing and ensures that the tail end still water flows.
In the indirect cooling tower winter energy-saving anti-freezing system, a balance pipe B is arranged between the pipeline A and the downstream cold water return pipe; and B, the balance pipe improves the temperature of circulating water at the tail end of the cooling triangle, avoids freezing and ensures that the tail end still water flows.
Compared with the prior art, the utility model performs double-flow operation without increasing large investment, the whole system adopts countercurrent operation during the spring and autumn operation, and adopts forward flow operation mode during the winter operation, thus ensuring the anti-freezing safety of the winter system operation and simultaneously saving coal consumption and electricity consumption; according to the utility model, the circulating water flow direction of each sector in the indirect cooling tower is changed by changing the connection of the circulating water pipeline in each sector, namely, the whole system is changed from the countercurrent flow to the forward flow, so that the coal consumption and the electricity consumption of the power plant in winter can be directly reduced, the freezing of the indirect cooling tower tube bundles in winter is prevented, the energy-saving and antifreezing requirements are achieved, and the working strength of operators is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
figure 2 shows a double flow Cheng Sanre device in which there are generally two arrangements.
Reference numerals: the device comprises a 1-cold water pipe, a 2-blow-down pipe, a 3-hot water pipe, a 4-exhaust pipe, a 5-cooling triangle, a 6-cooling triangle shutter, a 7-cooling triangle inner tube bundle, an 8-shutter adjusting actuator, a 9-A pipeline, a 10-B pipeline, an 11-C pipeline, a 12-D pipeline, a 13-forward Cheng Lengshui return pipe, a 14-backward Cheng Lengshui return pipe, a 15-forward hot water return pipe, a 16-backward hot water return pipe, a 17-forward Cheng Lengshui return shutoff valve, a 18-backward Cheng Lengshui return shutoff valve, a 19-temperature detecting instrument, a 20-forward hot water return shutoff valve, a 21-backward hot water return shutoff valve, 22-A drain valves 22 and 23, 23-B drain valves, a 24-A balance pipe and a 25-B balance pipe.
The utility model is further described below with reference to the drawings and the detailed description.
Detailed Description
Example 1 of the present utility model: the utility model provides an indirect cooling tower winter energy-conserving anti-freezing system, includes the indirect cooling tower, the indirect cooling tower inboard is connected with cold water pipe 1, blow off pipe 2 and hot-water line 3, the indirect cooling tower outside is connected with blast pipe 4, be provided with cooling triangle 5 on the indirect cooling tower, cooling triangle 5 is provided with the multiunit, cooling triangle 5 includes cooling triangle shutter 6 and cooling triangle inner tube bank 7, cooling triangle shutter 6 is connected with cooling triangle inner tube bank 7, be connected with shutter regulation executor 8 between two adjacent groups of cooling triangle shutter 6, still be provided with A pipeline 9 in the indirect cooling tower, B pipeline 10 and C pipeline 11, blast pipe 4 is connected in A pipeline 9, the top of cooling triangle inner tube bank 7 is also connected in A pipeline 9, a bottom of cooling triangle inner tube bank 7 is connected in B pipeline 10, another bottom of cooling triangle inner tube bank 7 is connected in C pipeline 11, cold water pipe 1 is connected in C pipeline 11, hot-water line 3 is also connected in C pipeline 11, be provided with D pipeline 12 between cooling triangle inner tube 1 and the hot-water line 3, blow off pipe 2 is connected in D pipeline 12.
Example 2 of the present utility model: the energy-saving and anti-freezing system for the indirect cooling tower in winter comprises an indirect cooling tower, wherein a cold water pipe 1, a blow-down pipe 2 and a hot water pipe 3 are connected to the inner side of the indirect cooling tower, an exhaust pipe 4 is connected to the outer side of the indirect cooling tower, a cooling triangle 5 is arranged on the indirect cooling tower, a plurality of groups of cooling triangle 5 comprise cooling triangle louver 6 and cooling triangle inner pipe bundles 7, the cooling triangle louver 6 is connected with the cooling triangle inner pipe bundles 7, louver adjusting actuators 8 are connected between two adjacent groups of cooling triangle louver 6, an A pipe 9, a B pipe 10 and a C pipe 11 are also arranged in the indirect cooling tower, the exhaust pipe 4 is connected to the A pipe 9, the top end of the cooling triangle inner pipe bundles 7 is also connected to the A pipe 9, one bottom end of the cooling triangle inner pipe bundles 7 is connected to the B pipe 10, the other bottom end of the cooling triangle inner pipe bundles 7 is connected to the C pipe 11, the cold water pipe 1 is connected to the C pipe 11, the hot water pipe 3 is also connected to the C pipe 11, a D pipe 12 is arranged between the cooling triangle inner pipe 1 and the hot water pipe 3, and the blow-down pipe 2 is connected to the D pipe 12; the inlet end of the cold water pipe 1 is connected with a forward flow Cheng Lengshui return pipe 13 and a reverse flow Cheng Lengshui return pipe 14, one end of the forward flow Cheng Lengshui return pipe 13 is connected with the inlet end of the cold water pipe 1, the other end of the forward flow Cheng Lengshui return pipe 13 is connected with the C pipeline 11, one end of the reverse flow Cheng Lengshui return pipe 14 is connected with the inlet end of the cold water pipe 1, the other end of the reverse flow Cheng Lengshui return pipe 14 is connected with the B pipeline 10, and one end of the D pipeline 12 is connected with the reverse flow Cheng Lengshui return pipe 14.
Example 3 of the present utility model: the energy-saving and anti-freezing system for the indirect cooling tower in winter comprises an indirect cooling tower, wherein a cold water pipe 1, a blow-down pipe 2 and a hot water pipe 3 are connected to the inner side of the indirect cooling tower, an exhaust pipe 4 is connected to the outer side of the indirect cooling tower, a cooling triangle 5 is arranged on the indirect cooling tower, a plurality of groups of cooling triangle 5 comprise cooling triangle louver 6 and cooling triangle inner pipe bundles 7, the cooling triangle louver 6 is connected with the cooling triangle inner pipe bundles 7, louver adjusting actuators 8 are connected between two adjacent groups of cooling triangle louver 6, an A pipe 9, a B pipe 10 and a C pipe 11 are also arranged in the indirect cooling tower, the exhaust pipe 4 is connected to the A pipe 9, the top end of the cooling triangle inner pipe bundles 7 is also connected to the A pipe 9, one bottom end of the cooling triangle inner pipe bundles 7 is connected to the B pipe 10, the other bottom end of the cooling triangle inner pipe bundles 7 is connected to the C pipe 11, the cold water pipe 1 is connected to the C pipe 11, the hot water pipe 3 is also connected to the C pipe 11, a D pipe 12 is arranged between the cooling triangle inner pipe 1 and the hot water pipe 3, and the blow-down pipe 2 is connected to the D pipe 12; the inlet end of the cold water pipe 1 is connected with a forward flow Cheng Lengshui return pipe 13 and a reverse flow Cheng Lengshui return pipe 14, one end of the forward flow Cheng Lengshui return pipe 13 is connected with the inlet end of the cold water pipe 1, the other end of the forward flow Cheng Lengshui return pipe 13 is connected with the C pipeline 11, one end of the reverse flow Cheng Lengshui return pipe 14 is connected with the inlet end of the cold water pipe 1, the other end of the reverse flow Cheng Lengshui return pipe 14 is connected with the B pipeline 10, and one end of the D pipeline 12 is connected with the reverse flow Cheng Lengshui return pipe 14; the outlet end of the hot water pipe 3 is connected with a forward flow hot water return pipe 15 and a backward flow hot water return pipe 16, one end of the forward flow hot water return pipe 15 is connected with the outlet end of the hot water pipe 3, the other end of the forward flow hot water return pipe 15 is connected with the B pipeline 10, one end of the backward flow hot water return pipe 16 is connected with the outlet end of the hot water pipe 3, the other end of the backward flow hot water return pipe 16 is connected with the C pipeline 11, and the other end of the D pipeline 12 is connected with the backward flow hot water return pipe 16.
Example 4 of the present utility model: the energy-saving and anti-freezing system for the indirect cooling tower in winter comprises an indirect cooling tower, wherein a cold water pipe 1, a blow-down pipe 2 and a hot water pipe 3 are connected to the inner side of the indirect cooling tower, an exhaust pipe 4 is connected to the outer side of the indirect cooling tower, a cooling triangle 5 is arranged on the indirect cooling tower, a plurality of groups of cooling triangle 5 comprise cooling triangle louver 6 and cooling triangle inner pipe bundles 7, the cooling triangle louver 6 is connected with the cooling triangle inner pipe bundles 7, louver adjusting actuators 8 are connected between two adjacent groups of cooling triangle louver 6, an A pipe 9, a B pipe 10 and a C pipe 11 are also arranged in the indirect cooling tower, the exhaust pipe 4 is connected to the A pipe 9, the top end of the cooling triangle inner pipe bundles 7 is also connected to the A pipe 9, one bottom end of the cooling triangle inner pipe bundles 7 is connected to the B pipe 10, the other bottom end of the cooling triangle inner pipe bundles 7 is connected to the C pipe 11, the cold water pipe 1 is connected to the C pipe 11, the hot water pipe 3 is also connected to the C pipe 11, a D pipe 12 is arranged between the cooling triangle inner pipe 1 and the hot water pipe 3, and the blow-down pipe 2 is connected to the D pipe 12; the inlet end of the cold water pipe 1 is connected with a forward flow Cheng Lengshui return pipe 13 and a reverse flow Cheng Lengshui return pipe 14, one end of the forward flow Cheng Lengshui return pipe 13 is connected with the inlet end of the cold water pipe 1, the other end of the forward flow Cheng Lengshui return pipe 13 is connected with the C pipeline 11, one end of the reverse flow Cheng Lengshui return pipe 14 is connected with the inlet end of the cold water pipe 1, the other end of the reverse flow Cheng Lengshui return pipe 14 is connected with the B pipeline 10, and one end of the D pipeline 12 is connected with the reverse flow Cheng Lengshui return pipe 14; the outlet end of the hot water pipe 3 is connected with a forward flow hot water return pipe 15 and a backward flow hot water return pipe 16, one end of the forward flow hot water return pipe 15 is connected with the outlet end of the hot water pipe 3, the other end of the forward flow hot water return pipe 15 is connected with the B pipeline 10, one end of the backward flow hot water return pipe 16 is connected with the outlet end of the hot water pipe 3, the other end of the backward flow hot water return pipe 16 is connected with the C pipeline 11, and the other end of the D pipeline 12 is connected with the backward flow hot water return pipe 16; the forward flow Cheng Lengshui backwater pipe 13 is provided with a forward flow Cheng Lengshui backwater shutoff valve 17.
Example 5 of the present utility model: the energy-saving and anti-freezing system for the indirect cooling tower in winter comprises an indirect cooling tower, wherein a cold water pipe 1, a blow-down pipe 2 and a hot water pipe 3 are connected to the inner side of the indirect cooling tower, an exhaust pipe 4 is connected to the outer side of the indirect cooling tower, a cooling triangle 5 is arranged on the indirect cooling tower, a plurality of groups of cooling triangle 5 comprise cooling triangle louver 6 and cooling triangle inner pipe bundles 7, the cooling triangle louver 6 is connected with the cooling triangle inner pipe bundles 7, louver adjusting actuators 8 are connected between two adjacent groups of cooling triangle louver 6, an A pipe 9, a B pipe 10 and a C pipe 11 are also arranged in the indirect cooling tower, the exhaust pipe 4 is connected to the A pipe 9, the top end of the cooling triangle inner pipe bundles 7 is also connected to the A pipe 9, one bottom end of the cooling triangle inner pipe bundles 7 is connected to the B pipe 10, the other bottom end of the cooling triangle inner pipe bundles 7 is connected to the C pipe 11, the cold water pipe 1 is connected to the C pipe 11, the hot water pipe 3 is also connected to the C pipe 11, a D pipe 12 is arranged between the cooling triangle inner pipe 1 and the hot water pipe 3, and the blow-down pipe 2 is connected to the D pipe 12; the inlet end of the cold water pipe 1 is connected with a forward flow Cheng Lengshui return pipe 13 and a reverse flow Cheng Lengshui return pipe 14, one end of the forward flow Cheng Lengshui return pipe 13 is connected with the inlet end of the cold water pipe 1, the other end of the forward flow Cheng Lengshui return pipe 13 is connected with the C pipeline 11, one end of the reverse flow Cheng Lengshui return pipe 14 is connected with the inlet end of the cold water pipe 1, the other end of the reverse flow Cheng Lengshui return pipe 14 is connected with the B pipeline 10, and one end of the D pipeline 12 is connected with the reverse flow Cheng Lengshui return pipe 14; the outlet end of the hot water pipe 3 is connected with a forward flow hot water return pipe 15 and a backward flow hot water return pipe 16, one end of the forward flow hot water return pipe 15 is connected with the outlet end of the hot water pipe 3, the other end of the forward flow hot water return pipe 15 is connected with the B pipeline 10, one end of the backward flow hot water return pipe 16 is connected with the outlet end of the hot water pipe 3, the other end of the backward flow hot water return pipe 16 is connected with the C pipeline 11, and the other end of the D pipeline 12 is connected with the backward flow hot water return pipe 16; the forward flow Cheng Lengshui backwater pipe 13 is provided with a forward flow Cheng Lengshui backwater shutoff valve 17; the countercurrent Cheng Lengshui backwater pipe 14 is provided with a countercurrent Cheng Lengshui backwater shutoff valve 18 and a temperature detection instrument 19.
Example 6 of the present utility model: the energy-saving and anti-freezing system for the indirect cooling tower in winter comprises an indirect cooling tower, wherein a cold water pipe 1, a blow-down pipe 2 and a hot water pipe 3 are connected to the inner side of the indirect cooling tower, an exhaust pipe 4 is connected to the outer side of the indirect cooling tower, a cooling triangle 5 is arranged on the indirect cooling tower, a plurality of groups of cooling triangle 5 comprise cooling triangle louver 6 and cooling triangle inner pipe bundles 7, the cooling triangle louver 6 is connected with the cooling triangle inner pipe bundles 7, louver adjusting actuators 8 are connected between two adjacent groups of cooling triangle louver 6, an A pipe 9, a B pipe 10 and a C pipe 11 are also arranged in the indirect cooling tower, the exhaust pipe 4 is connected to the A pipe 9, the top end of the cooling triangle inner pipe bundles 7 is also connected to the A pipe 9, one bottom end of the cooling triangle inner pipe bundles 7 is connected to the B pipe 10, the other bottom end of the cooling triangle inner pipe bundles 7 is connected to the C pipe 11, the cold water pipe 1 is connected to the C pipe 11, the hot water pipe 3 is also connected to the C pipe 11, a D pipe 12 is arranged between the cooling triangle inner pipe 1 and the hot water pipe 3, and the blow-down pipe 2 is connected to the D pipe 12; the inlet end of the cold water pipe 1 is connected with a forward flow Cheng Lengshui return pipe 13 and a reverse flow Cheng Lengshui return pipe 14, one end of the forward flow Cheng Lengshui return pipe 13 is connected with the inlet end of the cold water pipe 1, the other end of the forward flow Cheng Lengshui return pipe 13 is connected with the C pipeline 11, one end of the reverse flow Cheng Lengshui return pipe 14 is connected with the inlet end of the cold water pipe 1, the other end of the reverse flow Cheng Lengshui return pipe 14 is connected with the B pipeline 10, and one end of the D pipeline 12 is connected with the reverse flow Cheng Lengshui return pipe 14; the outlet end of the hot water pipe 3 is connected with a forward flow hot water return pipe 15 and a backward flow hot water return pipe 16, one end of the forward flow hot water return pipe 15 is connected with the outlet end of the hot water pipe 3, the other end of the forward flow hot water return pipe 15 is connected with the B pipeline 10, one end of the backward flow hot water return pipe 16 is connected with the outlet end of the hot water pipe 3, the other end of the backward flow hot water return pipe 16 is connected with the C pipeline 11, and the other end of the D pipeline 12 is connected with the backward flow hot water return pipe 16; the forward flow Cheng Lengshui backwater pipe 13 is provided with a forward flow Cheng Lengshui backwater shutoff valve 17; a countercurrent Cheng Lengshui backwater shutoff valve 18 and a temperature detection instrument 19 are arranged on the countercurrent Cheng Lengshui backwater pipe 14; the forward flow hot water return pipe 15 is provided with a forward flow hot water return shutoff valve 20 and a temperature detection instrument 19.
Example 7 of the present utility model: the energy-saving and anti-freezing system for the indirect cooling tower in winter comprises an indirect cooling tower, wherein a cold water pipe 1, a blow-down pipe 2 and a hot water pipe 3 are connected to the inner side of the indirect cooling tower, an exhaust pipe 4 is connected to the outer side of the indirect cooling tower, a cooling triangle 5 is arranged on the indirect cooling tower, a plurality of groups of cooling triangle 5 comprise cooling triangle louver 6 and cooling triangle inner pipe bundles 7, the cooling triangle louver 6 is connected with the cooling triangle inner pipe bundles 7, louver adjusting actuators 8 are connected between two adjacent groups of cooling triangle louver 6, an A pipe 9, a B pipe 10 and a C pipe 11 are also arranged in the indirect cooling tower, the exhaust pipe 4 is connected to the A pipe 9, the top end of the cooling triangle inner pipe bundles 7 is also connected to the A pipe 9, one bottom end of the cooling triangle inner pipe bundles 7 is connected to the B pipe 10, the other bottom end of the cooling triangle inner pipe bundles 7 is connected to the C pipe 11, the cold water pipe 1 is connected to the C pipe 11, the hot water pipe 3 is also connected to the C pipe 11, a D pipe 12 is arranged between the cooling triangle inner pipe 1 and the hot water pipe 3, and the blow-down pipe 2 is connected to the D pipe 12; the inlet end of the cold water pipe 1 is connected with a forward flow Cheng Lengshui return pipe 13 and a reverse flow Cheng Lengshui return pipe 14, one end of the forward flow Cheng Lengshui return pipe 13 is connected with the inlet end of the cold water pipe 1, the other end of the forward flow Cheng Lengshui return pipe 13 is connected with the C pipeline 11, one end of the reverse flow Cheng Lengshui return pipe 14 is connected with the inlet end of the cold water pipe 1, the other end of the reverse flow Cheng Lengshui return pipe 14 is connected with the B pipeline 10, and one end of the D pipeline 12 is connected with the reverse flow Cheng Lengshui return pipe 14; the outlet end of the hot water pipe 3 is connected with a forward flow hot water return pipe 15 and a backward flow hot water return pipe 16, one end of the forward flow hot water return pipe 15 is connected with the outlet end of the hot water pipe 3, the other end of the forward flow hot water return pipe 15 is connected with the B pipeline 10, one end of the backward flow hot water return pipe 16 is connected with the outlet end of the hot water pipe 3, the other end of the backward flow hot water return pipe 16 is connected with the C pipeline 11, and the other end of the D pipeline 12 is connected with the backward flow hot water return pipe 16; the forward flow Cheng Lengshui backwater pipe 13 is provided with a forward flow Cheng Lengshui backwater shutoff valve 17; a countercurrent Cheng Lengshui backwater shutoff valve 18 and a temperature detection instrument 19 are arranged on the countercurrent Cheng Lengshui backwater pipe 14; the downstream hot water return pipe 15 is provided with a downstream hot water return shutoff valve 20 and a temperature detection instrument 19; the reverse flow hot water return pipe 16 is provided with a reverse flow hot water return shutoff valve 21.
Example 8 of the present utility model: the energy-saving and anti-freezing system for the indirect cooling tower in winter comprises an indirect cooling tower, wherein a cold water pipe 1, a blow-down pipe 2 and a hot water pipe 3 are connected to the inner side of the indirect cooling tower, an exhaust pipe 4 is connected to the outer side of the indirect cooling tower, a cooling triangle 5 is arranged on the indirect cooling tower, a plurality of groups of cooling triangle 5 comprise cooling triangle louver 6 and cooling triangle inner pipe bundles 7, the cooling triangle louver 6 is connected with the cooling triangle inner pipe bundles 7, louver adjusting actuators 8 are connected between two adjacent groups of cooling triangle louver 6, an A pipe 9, a B pipe 10 and a C pipe 11 are also arranged in the indirect cooling tower, the exhaust pipe 4 is connected to the A pipe 9, the top end of the cooling triangle inner pipe bundles 7 is also connected to the A pipe 9, one bottom end of the cooling triangle inner pipe bundles 7 is connected to the B pipe 10, the other bottom end of the cooling triangle inner pipe bundles 7 is connected to the C pipe 11, the cold water pipe 1 is connected to the C pipe 11, the hot water pipe 3 is also connected to the C pipe 11, a D pipe 12 is arranged between the cooling triangle inner pipe 1 and the hot water pipe 3, and the blow-down pipe 2 is connected to the D pipe 12; the inlet end of the cold water pipe 1 is connected with a forward flow Cheng Lengshui return pipe 13 and a reverse flow Cheng Lengshui return pipe 14, one end of the forward flow Cheng Lengshui return pipe 13 is connected with the inlet end of the cold water pipe 1, the other end of the forward flow Cheng Lengshui return pipe 13 is connected with the C pipeline 11, one end of the reverse flow Cheng Lengshui return pipe 14 is connected with the inlet end of the cold water pipe 1, the other end of the reverse flow Cheng Lengshui return pipe 14 is connected with the B pipeline 10, and one end of the D pipeline 12 is connected with the reverse flow Cheng Lengshui return pipe 14; the outlet end of the hot water pipe 3 is connected with a forward flow hot water return pipe 15 and a backward flow hot water return pipe 16, one end of the forward flow hot water return pipe 15 is connected with the outlet end of the hot water pipe 3, the other end of the forward flow hot water return pipe 15 is connected with the B pipeline 10, one end of the backward flow hot water return pipe 16 is connected with the outlet end of the hot water pipe 3, the other end of the backward flow hot water return pipe 16 is connected with the C pipeline 11, and the other end of the D pipeline 12 is connected with the backward flow hot water return pipe 16; the forward flow Cheng Lengshui backwater pipe 13 is provided with a forward flow Cheng Lengshui backwater shutoff valve 17; a countercurrent Cheng Lengshui backwater shutoff valve 18 and a temperature detection instrument 19 are arranged on the countercurrent Cheng Lengshui backwater pipe 14; the downstream hot water return pipe 15 is provided with a downstream hot water return shutoff valve 20 and a temperature detection instrument 19; the reverse flow hot water return pipe 16 is provided with a reverse flow hot water return shutoff valve 21; the pipeline D12 is provided with a water drain valve A22 and a water drain valve B23, the water drain valve A22 is arranged between the sewage drain pipe 2 and the countercurrent Cheng Lengshui return pipe 14, and the water drain valve B23 is arranged between the sewage drain pipe 2 and the countercurrent hot water return pipe 16.
Example 9 of the present utility model: the energy-saving and anti-freezing system for the indirect cooling tower in winter comprises an indirect cooling tower, wherein a cold water pipe 1, a blow-down pipe 2 and a hot water pipe 3 are connected to the inner side of the indirect cooling tower, an exhaust pipe 4 is connected to the outer side of the indirect cooling tower, a cooling triangle 5 is arranged on the indirect cooling tower, a plurality of groups of cooling triangle 5 comprise cooling triangle louver 6 and cooling triangle inner pipe bundles 7, the cooling triangle louver 6 is connected with the cooling triangle inner pipe bundles 7, louver adjusting actuators 8 are connected between two adjacent groups of cooling triangle louver 6, an A pipe 9, a B pipe 10 and a C pipe 11 are also arranged in the indirect cooling tower, the exhaust pipe 4 is connected to the A pipe 9, the top end of the cooling triangle inner pipe bundles 7 is also connected to the A pipe 9, one bottom end of the cooling triangle inner pipe bundles 7 is connected to the B pipe 10, the other bottom end of the cooling triangle inner pipe bundles 7 is connected to the C pipe 11, the cold water pipe 1 is connected to the C pipe 11, the hot water pipe 3 is also connected to the C pipe 11, a D pipe 12 is arranged between the cooling triangle inner pipe 1 and the hot water pipe 3, and the blow-down pipe 2 is connected to the D pipe 12; the inlet end of the cold water pipe 1 is connected with a forward flow Cheng Lengshui return pipe 13 and a reverse flow Cheng Lengshui return pipe 14, one end of the forward flow Cheng Lengshui return pipe 13 is connected with the inlet end of the cold water pipe 1, the other end of the forward flow Cheng Lengshui return pipe 13 is connected with the C pipeline 11, one end of the reverse flow Cheng Lengshui return pipe 14 is connected with the inlet end of the cold water pipe 1, the other end of the reverse flow Cheng Lengshui return pipe 14 is connected with the B pipeline 10, and one end of the D pipeline 12 is connected with the reverse flow Cheng Lengshui return pipe 14; the outlet end of the hot water pipe 3 is connected with a forward flow hot water return pipe 15 and a backward flow hot water return pipe 16, one end of the forward flow hot water return pipe 15 is connected with the outlet end of the hot water pipe 3, the other end of the forward flow hot water return pipe 15 is connected with the B pipeline 10, one end of the backward flow hot water return pipe 16 is connected with the outlet end of the hot water pipe 3, the other end of the backward flow hot water return pipe 16 is connected with the C pipeline 11, and the other end of the D pipeline 12 is connected with the backward flow hot water return pipe 16; the forward flow Cheng Lengshui backwater pipe 13 is provided with a forward flow Cheng Lengshui backwater shutoff valve 17; a countercurrent Cheng Lengshui backwater shutoff valve 18 and a temperature detection instrument 19 are arranged on the countercurrent Cheng Lengshui backwater pipe 14; the downstream hot water return pipe 15 is provided with a downstream hot water return shutoff valve 20 and a temperature detection instrument 19; the reverse flow hot water return pipe 16 is provided with a reverse flow hot water return shutoff valve 21; the pipeline D12 is provided with a water drain valve A22 and a water drain valve B23, the water drain valve A22 is arranged between the sewage drain pipe 2 and the countercurrent Cheng Lengshui return pipe 14, and the water drain valve B23 is arranged between the sewage drain pipe 2 and the countercurrent hot water return pipe 16; an A balance pipe 24 is arranged between the A pipeline 9 and the countercurrent Cheng Lengshui return pipe 14.
Example 10 of the present utility model: the energy-saving and anti-freezing system for the indirect cooling tower in winter comprises an indirect cooling tower, wherein a cold water pipe 1, a blow-down pipe 2 and a hot water pipe 3 are connected to the inner side of the indirect cooling tower, an exhaust pipe 4 is connected to the outer side of the indirect cooling tower, a cooling triangle 5 is arranged on the indirect cooling tower, a plurality of groups of cooling triangle 5 comprise cooling triangle louver 6 and cooling triangle inner pipe bundles 7, the cooling triangle louver 6 is connected with the cooling triangle inner pipe bundles 7, louver adjusting actuators 8 are connected between two adjacent groups of cooling triangle louver 6, an A pipe 9, a B pipe 10 and a C pipe 11 are also arranged in the indirect cooling tower, the exhaust pipe 4 is connected to the A pipe 9, the top end of the cooling triangle inner pipe bundles 7 is also connected to the A pipe 9, one bottom end of the cooling triangle inner pipe bundles 7 is connected to the B pipe 10, the other bottom end of the cooling triangle inner pipe bundles 7 is connected to the C pipe 11, the cold water pipe 1 is connected to the C pipe 11, the hot water pipe 3 is also connected to the C pipe 11, a D pipe 12 is arranged between the cooling triangle inner pipe 1 and the hot water pipe 3, and the blow-down pipe 2 is connected to the D pipe 12; the inlet end of the cold water pipe 1 is connected with a forward flow Cheng Lengshui return pipe 13 and a reverse flow Cheng Lengshui return pipe 14, one end of the forward flow Cheng Lengshui return pipe 13 is connected with the inlet end of the cold water pipe 1, the other end of the forward flow Cheng Lengshui return pipe 13 is connected with the C pipeline 11, one end of the reverse flow Cheng Lengshui return pipe 14 is connected with the inlet end of the cold water pipe 1, the other end of the reverse flow Cheng Lengshui return pipe 14 is connected with the B pipeline 10, and one end of the D pipeline 12 is connected with the reverse flow Cheng Lengshui return pipe 14; the outlet end of the hot water pipe 3 is connected with a forward flow hot water return pipe 15 and a backward flow hot water return pipe 16, one end of the forward flow hot water return pipe 15 is connected with the outlet end of the hot water pipe 3, the other end of the forward flow hot water return pipe 15 is connected with the B pipeline 10, one end of the backward flow hot water return pipe 16 is connected with the outlet end of the hot water pipe 3, the other end of the backward flow hot water return pipe 16 is connected with the C pipeline 11, and the other end of the D pipeline 12 is connected with the backward flow hot water return pipe 16; the forward flow Cheng Lengshui backwater pipe 13 is provided with a forward flow Cheng Lengshui backwater shutoff valve 17; a countercurrent Cheng Lengshui backwater shutoff valve 18 and a temperature detection instrument 19 are arranged on the countercurrent Cheng Lengshui backwater pipe 14; the downstream hot water return pipe 15 is provided with a downstream hot water return shutoff valve 20 and a temperature detection instrument 19; the reverse flow hot water return pipe 16 is provided with a reverse flow hot water return shutoff valve 21; the pipeline D12 is provided with a water drain valve A22 and a water drain valve B23, the water drain valve A22 is arranged between the sewage drain pipe 2 and the countercurrent Cheng Lengshui return pipe 14, and the water drain valve B23 is arranged between the sewage drain pipe 2 and the countercurrent hot water return pipe 16; an A balance pipe 24 is arranged between the A pipeline 9 and the countercurrent Cheng Lengshui return pipe 14; a balance pipe 25 is arranged between the pipeline A9 and the concurrent Cheng Lengshui return pipe 13.
Example 11 of the present utility model: the energy-saving and anti-freezing system for the indirect cooling tower in winter comprises an indirect cooling tower, wherein a cold water pipe 1, a blow-off pipe 2 and a hot water pipe 3 are connected to the inner side of the indirect cooling tower, an exhaust pipe 4 is connected to the outer side of the indirect cooling tower, a cooling triangle 5 is arranged on the indirect cooling tower, 18 groups of cooling triangle 5 comprise cooling triangle louver 6 and cooling triangle inner pipe bundles 7, the cooling triangle louver 6 is connected with the cooling triangle inner pipe bundles 7, louver adjusting actuators 8 are connected between the two adjacent groups of cooling triangle louver 6, an A pipe 9, a B pipe 10 and a C pipe 11 are further arranged in the indirect cooling tower, the exhaust pipe 4 is connected to the A pipe 9, the top end of the cooling triangle inner pipe bundles 7 is also connected to the A pipe 9, one bottom end of the cooling triangle inner pipe bundles 7 is connected to the B pipe 10, the other bottom end of the cooling triangle inner pipe bundles 7 is connected to the C pipe 11, the cold water pipe 1 is connected to the C pipe 11, the hot water pipe 3 is also connected to the C pipe 11, a D pipe 12 is arranged between the cooling triangle inner pipe 1 and the hot water pipe 3, and the blow-off pipe 2 is connected to the D pipe 12; the inlet end of the cold water pipe 1 is connected with a forward flow Cheng Lengshui return pipe 13 and a reverse flow Cheng Lengshui return pipe 14, one end of the forward flow Cheng Lengshui return pipe 13 is connected with the inlet end of the cold water pipe 1, the other end of the forward flow Cheng Lengshui return pipe 13 is connected with the C pipeline 11, one end of the reverse flow Cheng Lengshui return pipe 14 is connected with the inlet end of the cold water pipe 1, the other end of the reverse flow Cheng Lengshui return pipe 14 is connected with the B pipeline 10, and one end of the D pipeline 12 is connected with the reverse flow Cheng Lengshui return pipe 14; the outlet end of the hot water pipe 3 is connected with a forward flow hot water return pipe 15 and a backward flow hot water return pipe 16, one end of the forward flow hot water return pipe 15 is connected with the outlet end of the hot water pipe 3, the other end of the forward flow hot water return pipe 15 is connected with the B pipeline 10, one end of the backward flow hot water return pipe 16 is connected with the outlet end of the hot water pipe 3, the other end of the backward flow hot water return pipe 16 is connected with the C pipeline 11, and the other end of the D pipeline 12 is connected with the backward flow hot water return pipe 16; the forward flow Cheng Lengshui backwater pipe 13 is provided with a forward flow Cheng Lengshui backwater shutoff valve 17; a countercurrent Cheng Lengshui backwater shutoff valve 18 and a temperature detection instrument 19 are arranged on the countercurrent Cheng Lengshui backwater pipe 14; the downstream hot water return pipe 15 is provided with a downstream hot water return shutoff valve 20 and a temperature detection instrument 19; the reverse flow hot water return pipe 16 is provided with a reverse flow hot water return shutoff valve 21; the pipeline D12 is provided with a water drain valve A22 and a water drain valve B23, the water drain valve A22 is arranged between the sewage drain pipe 2 and the countercurrent Cheng Lengshui return pipe 14, and the water drain valve B23 is arranged between the sewage drain pipe 2 and the countercurrent hot water return pipe 16; an A balance pipe 24 is arranged between the A pipeline 9 and the countercurrent Cheng Lengshui return pipe 14; a balance pipe 25 is arranged between the pipeline A9 and the concurrent Cheng Lengshui return pipe 13.
Example 12 of the present utility model: the energy-saving and anti-freezing system for the indirect cooling tower in winter comprises an indirect cooling tower, wherein a cold water pipe 1, a blow-off pipe 2 and a hot water pipe 3 are connected to the inner side of the indirect cooling tower, an exhaust pipe 4 is connected to the outer side of the indirect cooling tower, a cooling triangle 5 is arranged on the indirect cooling tower, 30 groups of cooling triangle 5 are arranged, each cooling triangle 5 comprises a cooling triangle louver 6 and a cooling triangle inner pipe bundle 7, the cooling triangle louver 6 is connected with the cooling triangle inner pipe bundle 7, a louver adjusting actuator 8 is connected between every two adjacent groups of cooling triangle louver 6, an A pipe 9, a B pipe 10 and a C pipe 11 are also arranged in the indirect cooling tower, the exhaust pipe 4 is connected to the A pipe 9, the top end of the cooling triangle inner pipe bundle 7 is also connected to the A pipe 9, one bottom end of the cooling triangle inner pipe bundle 7 is connected to the B pipe 10, the other bottom end of the cooling triangle inner pipe bundle 7 is connected to the C pipe 11, the cold water pipe 1 is connected to the C pipe 11, the hot water pipe 3 is also connected to the C pipe 11, a D pipe 12 is arranged between the cooling triangle inner pipe 1 and the hot water pipe 3, and the blow-off pipe 2 is connected to the D pipe 12; the inlet end of the cold water pipe 1 is connected with a forward flow Cheng Lengshui return pipe 13 and a reverse flow Cheng Lengshui return pipe 14, one end of the forward flow Cheng Lengshui return pipe 13 is connected with the inlet end of the cold water pipe 1, the other end of the forward flow Cheng Lengshui return pipe 13 is connected with the C pipeline 11, one end of the reverse flow Cheng Lengshui return pipe 14 is connected with the inlet end of the cold water pipe 1, the other end of the reverse flow Cheng Lengshui return pipe 14 is connected with the B pipeline 10, and one end of the D pipeline 12 is connected with the reverse flow Cheng Lengshui return pipe 14; the outlet end of the hot water pipe 3 is connected with a forward flow hot water return pipe 15 and a backward flow hot water return pipe 16, one end of the forward flow hot water return pipe 15 is connected with the outlet end of the hot water pipe 3, the other end of the forward flow hot water return pipe 15 is connected with the B pipeline 10, one end of the backward flow hot water return pipe 16 is connected with the outlet end of the hot water pipe 3, the other end of the backward flow hot water return pipe 16 is connected with the C pipeline 11, and the other end of the D pipeline 12 is connected with the backward flow hot water return pipe 16; the forward flow Cheng Lengshui backwater pipe 13 is provided with a forward flow Cheng Lengshui backwater shutoff valve 17; a countercurrent Cheng Lengshui backwater shutoff valve 18 and a temperature detection instrument 19 are arranged on the countercurrent Cheng Lengshui backwater pipe 14; the downstream hot water return pipe 15 is provided with a downstream hot water return shutoff valve 20 and a temperature detection instrument 19; the reverse flow hot water return pipe 16 is provided with a reverse flow hot water return shutoff valve 21; the pipeline D12 is provided with a water drain valve A22 and a water drain valve B23, the water drain valve A22 is arranged between the sewage drain pipe 2 and the countercurrent Cheng Lengshui return pipe 14, and the water drain valve B23 is arranged between the sewage drain pipe 2 and the countercurrent hot water return pipe 16; an A balance pipe 24 is arranged between the A pipeline 9 and the countercurrent Cheng Lengshui return pipe 14; a balance pipe 25 is arranged between the pipeline A9 and the concurrent Cheng Lengshui return pipe 13.
The working principle of one embodiment of the utility model is as follows:
the utility model works as follows:
in winter, forward flow operation is adopted, a forward flow cold water return water shutoff valve 17 and a forward flow hot water return water shutoff valve 20 are opened, and a reverse flow Cheng Lengshui return water shutoff valve 18 and a reverse flow hot water return water shutoff valve 21 are closed;
in summer, the reverse flow path operation is adopted, the reverse flow Cheng Lengshui backwater shutoff valve 18 and the reverse flow hot water backwater shutoff valve 21 are opened, and the forward flow cold water backwater shutoff valve 17 and the forward flow hot water backwater shutoff valve 20 are closed.
Claims (10)
1. The utility model provides an energy-conserving anti-freezing system in cold tower winter, includes the cold tower, a serial communication port, the cold water pipe (1) is connected with to the cold tower inboard, blow off pipe (2) and hot-water line (3), be provided with cooling triangle (5) on the cold tower between, cooling triangle (5) are provided with the multiunit, cooling triangle (5) are including cooling triangle shutter (6) and cooling triangle interior tube bank (7), cooling triangle shutter (6) are connected with cooling triangle interior tube bank (7), be connected with shutter regulation executor (8) between two adjacent groups cooling triangle shutter (6), still be provided with A pipeline (9) in the cold tower between, B pipeline (10) and C pipeline (11), blast pipe (4) are connected in A pipeline (9), the top of cooling triangle interior tube bank (7) is also connected in A pipeline (9), a bottom is connected in B pipeline (10), another bottom of cooling triangle interior tube bank (7) is connected in C pipeline (11), cold water pipe (1) are connected in C pipeline (11), pipe (3) are also connected in C pipeline (11), be connected with between cold water pipe (12) and cold water line (12).
2. The energy-saving and anti-freezing system for the indirect cooling tower in winter according to claim 1, wherein the inlet end of the cold water pipe (1) is connected with a forward flow Cheng Lengshui return pipe (13) and a reverse flow Cheng Lengshui return pipe (14), one end of the forward flow Cheng Lengshui return pipe (13) is connected with the inlet end of the cold water pipe (1), the other end of the forward flow Cheng Lengshui return pipe (13) is connected with the C pipeline (11), one end of the reverse flow Cheng Lengshui return pipe (14) is connected with the inlet end of the cold water pipe (1), the other end of the reverse flow Cheng Lengshui return pipe (14) is connected with the B pipeline (10), and one end of the D pipeline (12) is connected with the reverse flow Cheng Lengshui return pipe (14).
3. The indirect cooling tower winter energy-saving and anti-freezing system according to claim 2, wherein the outlet end of the hot water pipe (3) is connected with a forward flow hot water return pipe (15) and a backward flow hot water return pipe (16), one end of the forward flow hot water return pipe (15) is connected with the outlet end of the hot water pipe (3), the other end of the forward flow hot water return pipe (15) is connected with the B pipeline (10), one end of the backward flow hot water return pipe (16) is connected with the outlet end of the hot water pipe (3), the other end of the backward flow hot water return pipe (16) is connected with the C pipeline (11), and the other end of the D pipeline (12) is connected with the backward flow hot water return pipe (16).
4. A winter energy-saving and anti-freezing system of an indirect cooling tower according to claim 3, characterized in that the forward flow Cheng Lengshui backwater pipe (13) is provided with a forward flow Cheng Lengshui backwater shutoff valve (17).
5. The energy-saving and anti-freezing system for the indirect cooling tower in winter according to claim 4, wherein a countercurrent Cheng Lengshui backwater shutoff valve (18) and a temperature detection instrument (19) are arranged on the countercurrent Cheng Lengshui backwater pipe (14).
6. The indirect-cooling tower winter energy-saving and anti-freezing system according to claim 5, wherein the forward-flow hot water return pipe (15) is provided with a forward-flow hot water return shutoff valve (20) and a temperature detection instrument (19).
7. The indirect-cooling tower winter energy-saving and anti-freezing system according to claim 6, wherein the reverse-flow hot water return pipe (16) is provided with a reverse-flow hot water return shutoff valve (21).
8. The energy-saving and antifreezing system for the indirect cooling tower in winter according to claim 7, wherein the pipeline D (12) is provided with a water drain valve A (22) and a water drain valve B (23), the water drain valve A (22) is arranged between the sewage drain pipe (2) and the countercurrent Cheng Lengshui water return pipe (14), and the water drain valve B (23) is arranged between the sewage drain pipe (2) and the countercurrent hot water return pipe (16).
9. The energy-saving and anti-freezing system for the indirect cooling tower in winter according to claim 8, wherein an A balance pipe (24) is arranged between the A pipeline (9) and the countercurrent Cheng Lengshui return pipe (14).
10. The energy-saving and anti-freezing system for the indirect cooling tower in winter according to claim 9, wherein a B balance pipe (25) is arranged between the A pipeline (9) and the forward flow Cheng Lengshui return pipe (13).
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| CN202321088368.9U CN220119899U (en) | 2023-05-08 | 2023-05-08 | Energy-saving and anti-freezing system for indirect cooling tower in winter |
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| CN202321088368.9U CN220119899U (en) | 2023-05-08 | 2023-05-08 | Energy-saving and anti-freezing system for indirect cooling tower in winter |
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2023
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