CN205537192U - Heating cycle protection system is split to automatic preventing frostbite of closed cooling tower - Google Patents
Heating cycle protection system is split to automatic preventing frostbite of closed cooling tower Download PDFInfo
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- CN205537192U CN205537192U CN201620290250.8U CN201620290250U CN205537192U CN 205537192 U CN205537192 U CN 205537192U CN 201620290250 U CN201620290250 U CN 201620290250U CN 205537192 U CN205537192 U CN 205537192U
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- water
- pipe
- cooling tower
- protection system
- water inlet
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- 238000001816 cooling Methods 0.000 title claims abstract description 33
- 238000010438 heat treatment Methods 0.000 title abstract description 9
- 208000001034 Frostbite Diseases 0.000 title abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 238000012544 monitoring process Methods 0.000 claims abstract description 3
- 238000005485 electric heating Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 2
- 230000002528 anti-freeze Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Abstract
The utility model discloses a heating cycle protection system is split to automatic preventing frostbite of closed cooling tower, including setting up the heat exchanger in the cooling tower, its end of intaking communicates the inlet tube through the water knockout drum, its water end (W. E. ) process water collector intercommunication outlet pipe, and the intercommunication is provided with the wet return between inlet tube and the outlet pipe, and the one end of returning the water piping connection inlet tube is higher than other end setting, and the lower one end of wet return is equipped with circulating water pump, and the higher one end of wet return is equipped with the stop valve for the electric heater of heating pipe water -logging, be used for temperature in the monitoring pipe temperature sensor and circulating water pump all is connected with the temperature control device electricity. The utility model provides an it is rational in infrastructure, can realize automatic preventing frostbite, save the electric energy, need not anti -icing fluid, have energy -concerving and environment -protective effect.
Description
Technical field
This utility model relates to a kind of closed cooling tower automatic freezing-protective and splits heat cycles protection system, belongs to
Cooling Tower Frostbite-Preventing Technique field.
Background technology
Closed cooling tower for a lot of places needing cooling, be currently mainly applied to electric furnace (smelting furnace,
Holding furnace, diathermic furnace, vacuum drying oven, glowing furnace) induction heating equipment, central air-conditioning, hydraulic pressure system
The fields such as system, forging, metallurgical, weaving and chemical industry.There is air inlet the bottom of closed cooling tower and catchments
Groove, top have blower fan, centre to be provided with heat exchanger, have shower above heat exchanger.Heat exchanger tube passes through
Pipeline is connected with backwater water pump, cyclic water tank, and wherein some pipeline is positioned at cooled equipment,
The heat of cooled equipment is taken away by the water in pipeline.
In prior art, when main cooling circulation line is closed and ambient temperature is relatively low, in order to prevent
Water in heat exchanger freezes and then causes coil frost broken, it is therefore necessary to heat exchanger does antifreeze process.Existing
One of antifreezing measures are had to be: when ambient temperature is the lowest, in heating cooling tower underdrain groove
Water is also heated by shower heat exchanger spray, to avoid the liquid in heat exchanger to freeze,
During this, water pump needs continuous firing, above-mentioned way to there is problems of, due to the water in water leg
More, and pump power is big, causes energy consumption very big, is unfavorable for energy-conservation；The two of existing antifreezing measures are:
By adding anti-icing fluid in the water of main cooling circulation line, this way there is problems of, anti-icing fluid
Volatile, to environment after discharge, it is unfavorable for environmental protection.
Utility model content
To this, this utility model aims to provide a kind of energy-conservation and environmental protection closed cooling tower automatic freezing-protective and splits
Heat cycles protection system.
The technical scheme realizing this utility model purpose is:
A kind of closed cooling tower automatic freezing-protective splits heat cycles protection system, including being arranged in cooling tower
Heat exchanger, its water inlet end connects water inlet pipe through water knockout drum, and its water side connects out through water collector
Water pipe, is provided with and communicated with return pipe between described water inlet pipe and described outlet pipe, described return pipe with enter
One end that water pipe connects is arranged higher than the other end, the relatively low one end of described return pipe equipped with water circulating pump,
The higher one end of described return pipe equipped with stop valve, within adding heat pipe the electric heater of water, for supervising
In test tube, temperature sensor and the described water circulating pump of temperature all electrically connect with attemperating unit.
In technique scheme, described electric heater is plug-in type electric heating tube or external heater.
In technique scheme, described water inlet pipe being provided with water flow switch, described water flow switch is connected
On the control circuit of described electric heater and water circulating pump.
In technique scheme, described water inlet pipe and described outlet pipe are provided with blowoff valve.
This utility model has positive effect: (1) uses the structure in this utility model, main cold
But after circulation line is closed, this heating circulation system is kept to be in "on" position, when temperature sensor is supervised
When measuring design temperature T1 (as set 3 DEG C) that the interior temperature of pipe is less than attemperating unit, attemperating unit control
Electric heater processed begins to warm up, and water circulating pump work simultaneously drives the interior water of pipe by water circulating pump, backwater
The loop that pipe, stop valve, water inlet pipe, water knockout drum, heat exchanger, water collector and outlet pipe are constituted is determined
Antifreezing effect is reached, when temperature sensor monitors to temperature is higher than the setting of attemperating unit to flowing
During temperature T2 (as set 20 DEG C), attemperating unit controls electric heater and stops heating, recirculated water simultaneously
Pump quits work；In this utility model, due to electric heater, to add hot water amount little, and this water circulating pump
Small-power water pump can be used, also need not add anti-icing fluid antifreeze simultaneously, therefore reach the effect of energy-conserving and environment-protective
Really.
Accompanying drawing explanation
Fig. 1 is the structure that in this utility model, closed cooling tower automatic freezing-protective splits heat cycles protection system
Schematic diagram.
Reference shown in figure is: 1-cooling tower；2-heat exchanger；3-water knockout drum；4-water inlet pipe；
5-water collector；6-outlet pipe；7-water flow switch；8-blowoff valve；9-return pipe；10-stop valve；
11-electric heater；12-temperature sensor；13-water circulating pump.
Detailed description of the invention
Below in conjunction with Figure of description, the concrete structure in this utility model is done with explanation:
A kind of closed cooling tower automatic freezing-protective splits heat cycles protection system, as it is shown in figure 1, include setting
Putting the heat exchanger 2 in cooling tower 1, its water inlet end connects water inlet pipe 4 through water knockout drum 3, its water outlet
End connects outlet pipe 6 through water collector 5, connects setting between described water inlet pipe 4 with described outlet pipe 6
Having return pipe 9, higher than the other end, (i.e. return pipe faces in one end that described return pipe 9 is connected with water inlet pipe 4
One end of nearly outlet pipe 6) arrange, described relatively low one end of return pipe 9 is i.e. near one end of outlet pipe 6
Equipped with water circulating pump 13, one end of the most close water inlet pipe 4 of described return pipe 9 higher end is equipped with cut-off
(effect arranging stop valve 10 herein is to ensure that current can not be flow to return pipe by water inlet pipe 4 to valve 10
9 but water inlet pipe 4 can be flow to by return pipe 9, thus avoid main cooling circulation line operationally current
Walk around heat exchanger 2 and directly being flowed through return pipe 9 by water inlet pipe 4 enters outlet pipe 6), it is used for adding heat pipe
The electric heater 11 of interior water, in monitoring pipe the temperature sensor 12 of temperature and described water circulating pump 13
All electrically connect with attemperating unit.Use the structure in the present embodiment, after main cooling circulation line is closed,
Open this heating circulation system, temperature setting less than attemperating unit in temperature sensor 12 monitors pipe
During fixed temperature T1 (as set 3 DEG C), attemperating unit controls electric heater 11 and heats, recirculated water simultaneously
Pump 13 work drive pipe in water by water circulating pump 13, return pipe 9, stop valve 10, water inlet pipe 4,
Directed flow in the loop that water knockout drum 3, heat exchanger 2, water collector 5 and outlet pipe 6 are constituted thus reach
Antifreezing effect, when temperature sensor 12 monitors the temperature design temperature T2 higher than attemperating unit (as set
Fixed 20 DEG C) time, attemperating unit controls electric heater 11 and stops heating, and water circulating pump 13 stops simultaneously
Work；In this utility model, due to electric heater 11, to add hot water amount little, and this water circulating pump 13 can be adopted
Use small-power water pump, also need not add anti-icing fluid antifreeze simultaneously, therefore reach the effect of energy-conserving and environment-protective.
Described electric heater 11 in the present embodiment is plug-in type electrothermal tube or external heater.
Further, described water inlet pipe 4 being provided with water flow switch 7, described water flow switch 7 is connected on institute
Stating on the control circuit of electric heater 11 and water circulating pump 13, this water flow switch 7 is in normally open,
Namely in main cooling circulation line during water generation directed flow (work of the most main cooling circulation line),
Water flow switch 7 is off all the time by flow action in main cooling circulation line, and now electricity adds
Hot device 11, the control circuit access failure of water circulating pump 13, thus avoid working at main cooling circulation line
Time the electric heater 11 and contingent misoperation of water circulating pump 13, and when water in main cooling circulation line
Do not flow (closedown of the most main cooling circulation line) time, water flow switch 7 can because losing main cooling circulation pipe
The effect of current in road and close thus the control circuit of electric heater 11, water circulating pump 13 connected,
Now electric heater 11, water circulating pump 13 just enter the state controlled by attemperating unit, work as attemperating unit
After sending actuating signal, electric heater 11 and water circulating pump 13 are started working, and therefore have the most anti-
Protect effect.
In the present embodiment, described water inlet pipe 4 and described outlet pipe 6 are provided with blowoff valve 8, use this
Planting structure, in being beneficial to pipeline inner tube after opening blowoff valve 8, water is discharged.
Obviously, above-described embodiment of the present utility model is only to be made by clearly demonstrating this utility model
Citing, and be not the restriction to embodiment of the present utility model.Common for art
For technical staff, change or the change of other multi-form can also be made on the basis of the above description
Dynamic.Here without also cannot all of embodiment be given exhaustive.And these belong to this utility model
The obvious change extended out of connotation or variation still fall within protection model of the present utility model
Enclose.
Claims (4)
1. closed cooling tower automatic freezing-protective splits a heat cycles protection system, including being arranged on
Heat exchanger (2) in cooling tower (1), its water inlet end connects water inlet pipe through water knockout drum (3)
(4), its water side is through water collector (5) connection outlet pipe (6), it is characterised in that institute
State and between water inlet pipe (4) and described outlet pipe (6), be provided with return pipe (9), described backwater
One end that pipe (9) is connected with water inlet pipe (4) is arranged higher than the other end, described return pipe (9)
Relatively low one end is equipped with water circulating pump (13), and the higher one end of described return pipe (9) is equipped with cutting
Only valve (10), for add the electric heater (11) of water in heat pipe, in monitoring pipe temperature
Temperature sensor (12) and described water circulating pump (13) all electrically connect with attemperating unit.
Closed cooling tower automatic freezing-protective the most according to claim 1 splits heat cycles protection
System, it is characterised in that described electric heater (11) is plug-in type electric heating tube or external adds
Hot device.
Closed cooling tower automatic freezing-protective the most according to claim 1 and 2 splits heat cycles
Protection system, it is characterised in that be provided with water flow switch (7) on described water inlet pipe (4),
Described water flow switch (7) is connected on described electric heater (11) and water circulating pump (13)
Control on circuit.
Closed cooling tower automatic freezing-protective the most according to claim 1 splits heat cycles protection
System, it is characterised in that the row of being provided with on described water inlet pipe (4) and described outlet pipe (6)
Dirty valve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620290250.8U CN205537192U (en) | 2016-04-08 | 2016-04-08 | Heating cycle protection system is split to automatic preventing frostbite of closed cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620290250.8U CN205537192U (en) | 2016-04-08 | 2016-04-08 | Heating cycle protection system is split to automatic preventing frostbite of closed cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205537192U true CN205537192U (en) | 2016-08-31 |
Family
ID=56790773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620290250.8U Active CN205537192U (en) | 2016-04-08 | 2016-04-08 | Heating cycle protection system is split to automatic preventing frostbite of closed cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205537192U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869713A (en) * | 2017-11-24 | 2018-04-03 | 浙江巨化热电有限公司 | A kind of steam power plant's low grade residual heat reuse means and method |
| CN113499670A (en) * | 2021-08-25 | 2021-10-15 | 鼎信阳光环境技术有限公司 | Automatic anti-freezing spraying device suitable for north |
| CN114440657A (en) * | 2022-01-27 | 2022-05-06 | 江苏格陵兰传热科技有限公司 | Anti-freezing module of closed cooling tower |
-
2016
- 2016-04-08 CN CN201620290250.8U patent/CN205537192U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869713A (en) * | 2017-11-24 | 2018-04-03 | 浙江巨化热电有限公司 | A kind of steam power plant's low grade residual heat reuse means and method |
| CN113499670A (en) * | 2021-08-25 | 2021-10-15 | 鼎信阳光环境技术有限公司 | Automatic anti-freezing spraying device suitable for north |
| CN114440657A (en) * | 2022-01-27 | 2022-05-06 | 江苏格陵兰传热科技有限公司 | Anti-freezing module of closed cooling tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180824 Address after: 314400 No. 18, Qing Yuan Road, Haining, Jiaxing, Zhejiang. Patentee after: Zhejiang Warehouse Environment Technology Co., Ltd. Address before: 314499 Zhejiang Jiaxing Haining Luochuan District 21 building 201 Patentee before: Cang Minwei |