CN114484281A - Anti-freezing module for circulating pipeline - Google Patents

Anti-freezing module for circulating pipeline Download PDF

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Publication number
CN114484281A
CN114484281A CN202210099364.4A CN202210099364A CN114484281A CN 114484281 A CN114484281 A CN 114484281A CN 202210099364 A CN202210099364 A CN 202210099364A CN 114484281 A CN114484281 A CN 114484281A
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CN
China
Prior art keywords
check valve
pipeline
circulation pipe
flow
bypass
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210099364.4A
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Chinese (zh)
Inventor
杨鲁旭
徐大立
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Greenland Heat Transfer Technology Co ltd
Original Assignee
Jiangsu Greenland Heat Transfer Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Jiangsu Greenland Heat Transfer Technology Co ltd filed Critical Jiangsu Greenland Heat Transfer Technology Co ltd
Priority to CN202210099364.4A priority Critical patent/CN114484281A/en
Publication of CN114484281A publication Critical patent/CN114484281A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/08—Pipe-line systems for liquids or viscous products
    • F17D1/14—Conveying liquids or viscous products by pumping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
    • F16L53/30—Heating of pipes or pipe systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/08—Pipe-line systems for liquids or viscous products
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
    • F24S40/70—Preventing freezing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Sustainable Development (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The invention relates to the field of freezing prevention, in particular to a freezing prevention module for a circulating pipeline, which comprises a supporting bottom plate, wherein a main pipeline is arranged on the supporting bottom plate, one end of the main pipeline is an inlet, the other end of the main pipeline is an outlet, a first check valve is arranged on the main pipeline, the first check valve is positioned between the inlet and the outlet, a bypass pipeline is arranged on one side of the main pipeline, the water flow of the bypass pipeline is smaller than that of the main pipeline, one end of the bypass pipeline is communicated between the inlet and the first check valve, the other end of the bypass pipeline is communicated between the outlet and the first check valve, a small-flow lifting pump is arranged in the bypass pipeline, and a second check valve is arranged on the bypass pipeline. The cooling tower has the effect of reducing the possibility of damage to the cooling tower while saving energy.

Description

Anti-freezing module for circulating pipeline
Technical Field
The invention relates to the field of anti-freezing, in particular to an anti-freezing module for a circulating pipeline.
Background
The cooling tower is a device which uses water as circulating coolant, absorbs heat from a system and discharges the heat to the atmosphere so as to reduce the water temperature; the cold is an evaporation heat dissipation device which utilizes the principle that the heat is carried away by the volatilization of steam to achieve evaporation heat dissipation, convection heat transfer, radiation heat transfer and the like to dissipate the waste heat generated in industry or refrigeration air conditioners to reduce the water temperature so as to ensure the normal operation of the system.
In the related art, when the cooling tower is in a shutdown state in winter, in order to avoid the damage of the cooling tower caused by the freezing of a medium in the cooling tower, liquid can be circulated in the cooling tower by adding a circulating water pump, so that the possibility of freezing damage of the cooling tower is reduced.
Disclosure of Invention
In order to improve through increasing the long-time circulation of circulating water pump, need consume a large amount of electric energy, the defect of the extravagant energy, the utility model provides an anti-freezing module for on the circulating line is provided.
The application provides a module that prevents frostbite for circulating line is last adopts following technical scheme:
the utility model provides an anti-freezing module for circulating line is last, includes supporting baseplate, the last trunk line that is provided with of supporting baseplate, trunk line one end is the import, and one end is the export, be provided with first check valve on the trunk line, first check valve is located between import and the export, trunk line one side is provided with the by pass line, the rivers size of by pass line is less than the rivers size of trunk line, by pass line one end intercommunication is between import and first check valve, and the other end intercommunication is between export and first check valve, be provided with the little flow elevator pump in the by pass line, be provided with the second check valve on the by pass line.
Through adopting above-mentioned technical scheme, when the cooling tower stopped in winter, close first check valve, open the second check valve, the medium of low discharge gets into the by pass pipeline from the import, thereby it reduces endless medium flow to flow in through the by pass pipeline, through low discharge lift pump, promote the medium, reduce the possibility that the circulation stopped, thereby in the energy saving, reduce the possibility that the cooling tower damaged, because the flow of by pass pipeline is less than the trunk line, can be when the machine down state the velocity of flow of greatly reduced medium, only keep low discharge medium circulation, thereby the energy is saved, first check valve can reduce the possibility of medium backward flow.
Optionally, an electric heating pipeline is arranged on one side of the small-flow lift pump.
Through adopting above-mentioned technical scheme, set up the electrical heating pipeline on small discharge lift pump one side, can carry out electrical heating to the water of bypass pipeline front end, keep water at the temperature that can not freeze, slow circulation flow to reduce the probability that the cooler bin freezes.
Optionally, a support frame is arranged on the support bottom plate, a photovoltaic panel is arranged on the support frame, the photovoltaic panel is arranged in an inclined mode and used for supplying power to the electric heating pipeline, and a storage battery is arranged on the support bottom plate.
Through adopting above-mentioned technical scheme, the photovoltaic board can be collected solar energy to charge to the battery, thereby make equipment have 24 hours power supply, when equipment meets the condition of outage suddenly, can provide the electric energy to the module, thereby control valve switch makes the module work, reduces the possibility that equipment freezes.
Optionally, a control unit is fixedly connected to the support bottom plate, and the control unit is used for controlling the first check valve and the second check valve.
Through adopting above-mentioned technical scheme, with control unit fixed connection in the backup pad, control first check valve and second check valve through control unit, can make things convenient for the transition that the medium flows to can supply power through the battery when the outage, thereby conveniently close first check valve and open the second check valve.
Optionally, a temperature detector is disposed on the bypass pipe, and the temperature detector is disposed between the second check valve and the outlet.
Through adopting above-mentioned technical scheme, thermodetector can be used for detecting the temperature in the bypass pipeline to make electric heating pipe heat the medium in the pipeline, make the water in the pipeline keep at the temperature that can not freeze, through the temperature in the detection pipeline that thermodetector can be better, thereby reduce the probability of freezing.
Optionally, a butterfly valve is arranged between the small flow lift pump and the inlet, and a butterfly valve is arranged between the small flow lift pump and the outlet.
Through adopting above-mentioned technical scheme, set up the butterfly valve and can seal the pipeline when the module that prevents frostbite is out of work, when the trunk line was used, can reduce the possibility that the medium flowed into the by pass line.
Optionally, the small flow lift pump is an anti-freezing pump, and the outer side wall of the bypass pipeline is wrapped with a heat insulation layer.
Through adopting above-mentioned technical scheme, the pump that prevents frostbite can improve the possibility of damaging under low temperature environment, and the heat preservation can further keep warm to bypass pipeline, reduces the possibility that bypass pipeline damaged.
Optionally, a flow detection device is arranged on the main pipeline.
Through adopting above-mentioned technical scheme, flow detection device can inspect the leakproofness of first check valve, and whether further convenient detection has liquid to leak reduces the waste of the energy.
In summary, the present application includes at least one of the following beneficial technical effects:
when the cooling tower stops in winter, the first check valve is closed, the second check valve is opened, a small-flow medium enters the bypass pipeline from the inlet, flows into the bypass pipeline to reduce the flow of the circulating medium, is lifted by the small-flow lifting pump, and reduces the possibility of stopping circulation, so that the possibility of damaging the cooling tower is reduced while energy is saved, the flow rate of the medium can be greatly reduced in a stop state due to the fact that the flow of the bypass pipeline is smaller than that of the main pipeline, the circulation of the small-flow medium is only kept, and the energy is saved;
an electric heating pipeline is arranged on one side of the small-flow lift pump, water at the front end of the bypass pipeline can be electrically heated, the water is kept at a non-icing temperature and slowly and circularly flows, and therefore the possibility of freezing damage of the cooling box is reduced;
temperature detector can be used for detecting the temperature in the bypass pipeline to make electric heating pipe heat the medium in the pipeline, make the water in the pipeline keep at the temperature that can not freeze, through the temperature in the detection pipeline that temperature detector can be better, thereby reduce the probability of freezing.
Drawings
Fig. 1 is a schematic structural diagram of an anti-freezing module used on a circulation pipeline in an embodiment of the present application.
Fig. 2 is a schematic structural view of one side of an anti-freezing module for use in a circulation pipe according to an embodiment of the present invention.
Description of reference numerals:
1. a support base plate; 2. a main pipeline; 3. an inlet; 4. an outlet; 5. a first check valve; 6. a bypass conduit; 7. a small flow lift pump; 8. a second check valve; 9. electrically heating the pipeline; 10. a support frame; 11. a photovoltaic panel; 12. a storage battery; 13. controlling the unit; 14. a temperature detector; 15. a butterfly valve; 16. a heat-insulating layer; 17. a flow rate detection device.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses an anti-freezing module used on a circulating pipeline. Referring to fig. 1 and 2, an anti-freezing module for circulating line, including supporting baseplate 1, fixedly connected with trunk line 2 on the supporting baseplate 1, 2 one ends of trunk line are import 3, and the other end is export 4, and 2 one side of trunk line are provided with by-pass line 6, and by-pass line 6 is used for when trunk line 2 closes, flows the medium from by-pass line 6.
Referring to fig. 1 and 2, a first check valve 5 is provided on the main pipe 2, the first check valve 5 is located between the inlet 3 and the outlet 4, the first check valve 5 can reduce the possibility of backflow of the medium, and the first check valve 5 can be closed when the cooling tower is stopped, thereby reducing the flow rate and saving energy.
Referring to fig. 1, in order to improve the sealing property when the first check valve 5 is closed, the main pipe 2 is provided with a flow rate detection device 17, and the flow rate detection device 17 is provided on the side of the first check valve 5 close to the inlet 3.
Referring to fig. 1, after the cooling tower is stopped, the medium circulates from the bypass pipeline 6, the water flow of the bypass pipeline 6 is smaller than that of the main pipeline 2, the slow flow of the water flow in the cooling tower can be ensured, and the possibility of freezing damage of the cooling tower is reduced.
Referring to fig. 1, in order to facilitate the control of the water flow in the bypass pipe 6, a small flow lift pump 7 is disposed in the bypass pipe 6, the slow flow of the water flow can be conveniently controlled by the small flow lift pump 7, and the small flow lift pump 7 is an anti-freezing pump in this embodiment.
Referring to fig. 1, when the pipe is exposed to a low outdoor temperature, the bypass pipe 6 is easily frozen, and thus the heat insulating layer 16 is wrapped on the outer side of the bypass pipe 6, and the heat insulating layer 16 can reduce the possibility of freezing the bypass pipe 6.
Referring to fig. 1, in order to reduce the backflow of the medium in the bypass pipe 6, a second check valve 8 is disposed in the bypass pipe 6, and when the cooling tower is stopped, the first check valve 5 is closed, and the second check valve 8 is opened to allow the medium to flow through the bypass pipe 6, thereby reducing energy loss.
Referring to fig. 1, still fixedly connected with electric heating pipeline 9 on the bypass pipeline 6, electric heating pipeline 9 sets up and is close to import 3 one side at low discharge elevator pump 7, can heat the water in the bypass pipeline 6 through electric heating pipeline 9 to reach the stability that can not freeze, the circulation of convenient water reduces the probability that the cooling tower freezes.
Referring to fig. 1, a temperature detector 14 is further fixedly connected to one side of the bypass pipe 6, and the temperature detector 14 can detect the temperature of the water in the bypass pipe 6, so as to conveniently control the heating of the electric heating pipe 9 to the water.
Referring to fig. 1 and 2, fixedly connected with support frame 10 on the supporting baseplate 1, fixedly connected with photovoltaic board 11 on the support frame 10, can absorb solar energy through photovoltaic board 11, further improve the utilization effect of the energy, and the electric energy of absorption conversion can supply power to electric heating pipeline 9, photovoltaic board 11 slopes to set up, photovoltaic board 11 that the slope set up can be better absorbs the light energy, still fixedly connected with battery 12 on the supporting baseplate 1, photovoltaic board 11 charges battery 12, thereby reserve the electric energy, when taking place the outage, when the cooling tower stopped, battery 12 can supply power to equipment temporarily, thereby make the hydrologic cycle in the cooling tower, reduce the possibility that the cooling tower freezes.
Referring to fig. 1, in order to improve the tightness of the bypass pipe 6, a butterfly valve 15 is fixedly connected between the small flow lift pump 7 and the inlet 3, and a butterfly valve 15 is also fixedly connected between the small flow lift pump 7 and the outlet 4, so that the butterfly valves 15 can facilitate the opening and closing of the two ends of the bypass pipe 6, thereby reducing the possibility of the medium flowing through the bypass pipe 6 when the main pipe 2 is in use.
Referring to fig. 2, a control unit 13 is fixedly connected to the support base plate 1, the control unit 13 is used for controlling the first check valve 5 and the second check valve 8, when the first check valve 5 is closed and the second check valve 8 is opened, the butterfly valve 15 is opened, so that water flows from the bypass pipe 6, and circulation occurs.
The implementation principle of the embodiment of the application is as follows: install bypass pipe 6 on circulating line's trunk line 2, when having a power failure or shutting down, through bypass pipe 6 circulating liquid, little flow elevator pump 7 in the bypass pipe 6, can make the water in the pipeline take place the slow circulation and flow, reduce the frozen possibility of pipeline water, and generate electricity through photovoltaic board 11, control unit 13 controls opening and closing of first check valve 5 and second check valve 8, thereby make liquid remove the way rear end from 2 front ends of trunk line, the removal of little flow realizes the protection of preventing frostbite to the cooling tower under the condition that does not consume a large amount of energy, electric heating pipeline 9 can heat the water in the pipeline, reduce the temperature that the temperature drops to easily freezing, the security performance is improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. An anti-freezing module for a circulating pipeline is characterized in that: including supporting baseplate (1), be provided with trunk line (2) on supporting baseplate (1), trunk line (2) one end is import (3), and one end is export (4), be provided with first check valve (5) on trunk line (2), first check valve (5) are located between import (3) and export (4), trunk line (2) one side is provided with by pass line (6), the rivers size of by pass line (6) is less than the rivers size of trunk line (2), by pass line (6) one end intercommunication is between import (3) and first check valve (5), and the other end intercommunication is between export (4) and first check valve (5), be provided with low discharge elevator pump (7) in pipeline (6), be provided with second check valve (8) on by pass line (6).
2. The anti-freeze module for use on a circulation pipe of claim 1, wherein: and an electric heating pipeline (9) is arranged on one side of the small-flow lift pump (7).
3. The anti-freeze module for use on a circulation pipe of claim 1, wherein: the solar photovoltaic heating device is characterized in that a support frame (10) is arranged on the support base plate (1), a photovoltaic panel (11) is arranged on the support frame (10), the photovoltaic panel (11) is obliquely arranged, the photovoltaic panel (11) is used for supplying power to the electric heating pipeline (9), and a storage battery (12) is arranged on the support base plate (1).
4. The anti-freeze module for use on a circulation pipe of claim 1, wherein: fixedly connected with control unit (13) on supporting baseplate (1), control unit (13) are used for controlling first check valve (5) and second check valve (8).
5. The anti-freeze module for use on a circulation pipe of claim 3, wherein: a temperature detector (14) is arranged on the bypass pipeline (6), and the temperature detector (14) is arranged between the second check valve (8) and the outlet (4).
6. The anti-freeze module for use on a circulation pipe of claim 1, wherein: the small-flow lift pump (7) and a butterfly valve (15) are arranged between the inlet (3), and the small-flow lift pump (7) and a butterfly valve (15) are arranged between the outlet (4).
7. The anti-freeze module for use on a circulation pipe of claim 1, wherein: the small-flow lift pump (7) is an anti-freezing pump, and the outer side wall of the bypass pipeline (6) is wrapped with an insulating layer (16).
8. The anti-freeze module for use on a circulation pipe of claim 1, wherein: and a flow detection device (17) is arranged on the main pipeline (2).
CN202210099364.4A 2022-01-27 2022-01-27 Anti-freezing module for circulating pipeline Pending CN114484281A (en)

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Application Number Priority Date Filing Date Title
CN202210099364.4A CN114484281A (en) 2022-01-27 2022-01-27 Anti-freezing module for circulating pipeline

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Application Number Priority Date Filing Date Title
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CN114484281A true CN114484281A (en) 2022-05-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115899804A (en) * 2023-03-01 2023-04-04 四川蜀旺新能源股份有限公司 Comprehensive power supply and heat supply equipment based on combined heat and power supply

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CN112411681A (en) * 2020-11-10 2021-02-26 四川大学 Building water supply pipeline anti-freezing system driven by circulating water pump
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KR20130019769A (en) * 2011-08-17 2013-02-27 주재권 Pipe-line having bypass circuit for preventing freeze-burst system
KR20130025104A (en) * 2011-09-01 2013-03-11 한국수자원공사 A compound flow measuring apparatus
CN203323316U (en) * 2013-05-31 2013-12-04 山东雅士股份有限公司 Anti-freezing device for air conditioning unit
CN204879448U (en) * 2015-08-04 2015-12-16 上海电力学院 Utilize solar energy heated air's frostproofing device that expands of natural gas line
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115899804A (en) * 2023-03-01 2023-04-04 四川蜀旺新能源股份有限公司 Comprehensive power supply and heat supply equipment based on combined heat and power supply

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