CN110906170A - Liquid discharge pipeline anti-freezing method and anti-freezing device thereof - Google Patents
Liquid discharge pipeline anti-freezing method and anti-freezing device thereof Download PDFInfo
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- CN110906170A CN110906170A CN201811078177.8A CN201811078177A CN110906170A CN 110906170 A CN110906170 A CN 110906170A CN 201811078177 A CN201811078177 A CN 201811078177A CN 110906170 A CN110906170 A CN 110906170A
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- liquid
- discharge
- discharge pipeline
- pressure relief
- pipeline
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/09—Component parts or accessories
- E03B7/10—Devices preventing bursting of pipes by freezing
- E03B7/12—Devices preventing bursting of pipes by freezing by preventing freezing
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a liquid discharge pipeline anti-freezing method and a device thereof.A discharge pipeline of a liquid storage tank is provided with a pressure relief port communicated with the discharge pipeline, when the discharge pipeline is closed to stop liquid delivery, the pressure relief port communicated with the discharge pipeline is synchronously opened, and residual liquid in the discharge pipeline flows back to a temperature area for preventing liquid from solidifying from a liquid solidification temperature area by the weight of the residual liquid under the action of the pressure relief port. According to the invention, the discharge pipeline on the liquid storage tank is provided with the pressure relief port, when liquid is exhausted, the backflow anti-freezing treatment of liquid remained in the discharge pipeline and not exhausted can be realized only by closing the discharge pipeline and opening the pressure relief port, the method is simple, the water outlet pipeline does not need to be heated, and the energy conservation and consumption reduction are very obvious.
Description
Technical Field
The invention relates to the technical field of pipeline discharge, in particular to an anti-freezing method and an anti-freezing device for a liquid discharge pipeline, which are suitable for areas where the liquid curing temperature is higher than the local environment temperature, especially for northern areas.
Background
Liquid in the liquid discharge pipeline keeps the mobile state all the time under the effect of lumen pressure, such discharge pipeline is difficult for taking place liquid and freezes the phenomenon, when overhauing or being used for flowing the power of liquid heat supply in the pipeline and breaking down and the time of having a power failure appears, liquid can have the possibility that stops flowing in the pipeline, and then make the liquid in the pipeline take place the solidification under cold circumstance, probably cause the rupture of discharge pipeline in the short time, cause the cost that is difficult to compensate, therefore, it is very crucial to carry out the frostproofing to liquid discharge pipeline.
In order to prevent the liquid in the pipeline from expanding and damaging the discharge pipeline due to freezing and icing because the temperature is lower than the solidification temperature of the transported liquid, the following anti-freezing methods are generally adopted at present:
firstly, the insulating layer is arranged outside the pipeline, but the cost is very high; in cold areas in northern China, the temperature can reach minus ten degrees or even lower, and the heat-insulating layer cannot really play a role in preventing frost cracking of the water pipe.
Secondly, an electric heating tape for heating the pipeline is added in the pipeline, the pipeline is firstly heated when the pipeline is used, ice is melted after the frozen pipeline is heated, and then the pipeline is used.
Thirdly, through the temperature in the real-time temperature sensor real-time detection pipeline, when reacing the temperature that freezes, control transfer piping in the valve makes liquid become circulation circuit, start the delivery pump and make the flow of hot liquid circulation in the pipeline, though can not freeze, effectively prevent the problem that liquid discharge pipeline is by the frost crack, its structure is complicated, causes the energy waste.
Disclosure of Invention
The invention aims to solve the defects in the background art, avoid the technical problem that the liquid discharge pipeline is frozen, influence the normal use of people, and provide an antifreezing method and an antifreezing device for the liquid discharge pipeline.
The invention adopts the following technical scheme:
in one aspect, the invention provides a liquid discharge pipeline anti-freezing method, a discharge pipeline of a liquid storage tank is provided with a pressure relief port communicated with the discharge pipeline, when the discharge pipeline is closed to stop liquid conveying, the pressure relief port communicated with the discharge pipeline is synchronously opened, and residual liquid in the discharge pipeline flows back to a temperature area for preventing liquid solidification from a liquid solidification temperature area by means of the weight of the residual liquid under the action of the pressure relief port.
When the solidification temperature of the discharged liquid is zero or below zero, the liquid storage tank is buried in the underground anti-freezing soil layer, and the discharge pipe is upwards penetrated through the frozen soil layer by the underground anti-freezing soil layer to discharge the liquid; arranging an exhaust valve and a pressure relief port on an exhaust pipeline positioned on the anti-freezing soil layer, wherein the pressure relief port is arranged close to the outlet end of the exhaust valve; closing a discharge valve on the discharge pipeline, and simultaneously opening a pressure relief opening on the discharge pipeline to communicate the liquid reserved in the discharge pipeline with the pressure relief opening, wherein the reserved liquid flows back to the anti-freeze soil layer area through the pressure relief opening.
Furthermore, an emptying pipeline with an emptying valve is connected to the pressure relief port; closing the discharge valve, and simultaneously opening an exhaust valve on an exhaust pipeline to enable the pressure relief port to be in an open state; the residual liquid in the discharge pipeline is communicated with the pressure relief port and flows back to the area of the anti-freezing soil layer through the emptying pipeline by the aid of the self weight of the liquid.
Further preferably, the outlet end of the evacuation pipe is disposed in the underground water well, and the liquid remaining in the evacuation pipe flows back to the water well by its own weight.
Or preferably, when the discharge pipeline discharges liquid from top to bottom on the ground and the whole discharge pipeline is positioned in the liquid curing area, arranging a discharge valve and a pressure relief opening on the root pipeline of the discharge pipeline, wherein the pressure relief opening is arranged close to an outlet of the discharge valve; closing a discharge valve on a discharge pipeline and simultaneously opening a pressure relief opening on the discharge pipeline; the remaining liquid in the discharge line flows back by its own weight to a temperature region where the liquid is prevented from solidifying.
Through set up the blowoff valve in pressure release mouth department, close the last discharge valve of discharge line, open the blowoff valve simultaneously, liquid and external atmospheric pressure intercommunication in the discharge line to the temperature region of preventing the liquid solidification is flowed back.
The normally open emptying pipeline is arranged at the pressure relief opening, and the opening at the upper end of the emptying pipeline is higher than the height of the liquid reserved in the discharge pipeline; and closing a discharge valve on the discharge pipeline, and enabling the residual liquid in the discharge pipeline to flow back to a temperature area for preventing the liquid from solidifying by means of the self weight.
Through a synchronous electric control or manual control mode, when the exhaust valve on the exhaust pipeline and the exhaust valve are opened, the exhaust valve is in a closed state, and when the exhaust valve is closed, the exhaust valve is in an open state.
In another aspect, the invention further provides a liquid discharge pipeline anti-freezing device, which is arranged on a discharge pipeline of a liquid storage tank with pressure, wherein the liquid storage tank is arranged in an underground anti-freezing soil layer, the discharge pipeline extends upwards from the underground anti-freezing soil layer and penetrates through the frozen soil layer, a pressure relief opening is arranged on the discharge pipeline in the anti-freezing soil layer, and a three-way control valve is arranged at the position of the pressure relief opening; controlling the three-way control valve to open, and discharging the liquid in the liquid storage tank from the discharge pipeline; and controlling the three-way control valve to be closed, and discharging the reserved water in the discharge pipeline, which is reserved in the frozen soil layer and the areas above the frozen soil layer, to the anti-freezing soil layer area from the pressure relief port.
Furthermore, an outlet end of the three-way control valve is connected with an evacuation pipeline, and an outlet end of the evacuation pipeline is arranged in the underground well of the liquid storage tank.
Or preferably, the invention also provides an anti-freezing device for the liquid discharge pipeline, which is arranged on the discharge pipeline of the solar water heater, wherein a discharge valve and a pressure relief opening are arranged at the position close to the root part of the discharge pipeline, and the pressure relief opening is arranged close to the outlet end of the discharge valve; the pressure relief opening is controlled to be closed, the drain valve is opened, and the drain pipeline drains water in the solar water heater; and controlling the pressure relief port to be opened, and when the discharge valve is closed, the discharge pipeline is communicated with the atmosphere through the pressure relief port, and the reserved water in the discharge pipeline is discharged.
Preferably, the pressure relief opening is connected with an evacuation pipeline, and the outlet end of the evacuation pipeline is higher than the height of the liquid remaining in the discharge pipeline.
The technical scheme of the invention has the following advantages:
A. the pressure relief opening is arranged on the discharge pipeline on the liquid storage tank, when liquid is exhausted, the pressure relief opening plays a role in well balancing internal and external pressures of liquid reserved in the discharge pipeline, the stress balance of the liquid reserved in the discharge pipeline can be broken only by closing the discharge valve and opening the pressure relief opening, backflow anti-freezing treatment of the liquid reserved in the discharge pipeline is achieved, the method is simple, any heating treatment of the water outlet pipeline is not needed, and energy conservation and consumption reduction are obvious.
B. The invention can also arrange an emptying valve at the position of the pressure relief opening, and the emptying valve and the discharge valve are automatically controlled to synchronously realize the opening of the emptying valve and the closing of the discharge valve, so as to realize the backflow anti-freezing treatment of the liquid in the discharge pipeline and greatly improve the emptying efficiency of the reserved liquid.
C. The liquid discharge pipeline anti-freezing method provided by the invention can be used for water for outdoor public toilets, including toilet flushing and hand washing; the device can also be used in the water supply system of tap water in northern households and other liquid discharge fields with the liquid solidification temperature lower than the environmental temperature.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings which are needed to be used in the embodiments will be briefly described below, and it is apparent that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained from the drawings without inventive labor to those skilled in the art.
FIG. 1 is a schematic illustration of a first freeze point apparatus of the present invention implemented in an underground portion;
FIG. 2 is a schematic view of an anti-freeze apparatus according to the present invention implemented in the above-ground portion;
FIG. 3 is a schematic view of a second embodiment of the freeze protection system of the present invention in an underground section.
Description of reference numerals:
1-a discharge line; 2-frozen soil layer; 3-a liquid storage tank; 4-a water pump; 5-a water well; 6-evacuation of the line; 7-a discharge valve; 8-an evacuation valve; 9-solar water heater; 10-an anti-freezing soil layer; 20-bath room; 30-a pressure relief port; 40-three-way control valve.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a liquid discharge pipeline anti-freezing method, which can be understood by combining a figure 1 and a figure 3, wherein a pressure relief port communicated with a discharge pipeline of a liquid storage tank is arranged on the discharge pipeline, the pressure relief port plays a role of well balancing the internal pressure and the external pressure of liquid reserved in the discharge pipeline, when the discharge pipeline is closed to stop liquid conveying, the pressure relief port communicated with the discharge pipeline is synchronously opened, the liquid reserved in the discharge pipeline flows back to a temperature area for preventing liquid solidification from a liquid solidification temperature area by means of the weight of the liquid reserved in the discharge pipeline under the action of the pressure relief port, so that the liquid to be conveyed is discharged in the discharge pipeline under the environment lower than the solidification temperature of the liquid, and the part of reserved liquid is completely emptied or discharged to the temperature area for preventing liquid solidification. The liquid can be water, and can also be other liquid substances such as petroleum, chemical engineering and the like.
When the solidification temperature of the discharged liquid is zero or below zero, the liquid storage tank is buried in the underground anti-freezing soil layer, and the discharge pipe is upwards penetrated through the underground anti-freezing soil layer by the underground anti-freezing soil layer to discharge the liquid; arranging an exhaust valve and a pressure relief port on an exhaust pipeline positioned on the anti-freezing soil layer, wherein the pressure relief port is arranged close to the outlet end of the exhaust valve; closing the discharge valve on the discharge pipeline, opening the pressure release mouth on the discharge pipeline simultaneously, remaining liquid and pressure release mouth intercommunication in making the discharge pipeline, it is regional that the liquid flows back to the earth formation of preventing frostbite by the pressure release mouth to solve the liquid that is located frozen soil layer and upper portion position and discharged fast, avoided remaining the frozen problem of taking place in the pipeline.
In fig. 1, an evacuation pipeline with an evacuation valve is arranged at an evacuation port, the evacuation valve is closed, and the evacuation valve on the evacuation pipeline is opened at the same time, so that a pressure relief port is in an open state; the residual liquid in the discharge pipeline is communicated with the pressure relief opening and flows back to the area of the anti-freezing soil layer through the emptying pipeline by the weight of the liquid. The anti-freezing device shown in fig. 1 specifically comprises a pressure liquid storage tank 3, a water suction pump 4 and a water well 5, wherein the water suction pump 4 can be arranged at the bottom position of the water well 5 and can also be arranged at other positions of the water well, the water suction pump 4 pumps water pumped from the water well 5 into the pressure liquid storage tank 3 through a pipeline, a pressure sensor is arranged on the liquid storage tank 3, automatic water feeding of the liquid storage tank can be realized, a discharge valve 7 is opened, water in the pressure liquid storage tank 3 is discharged through a discharge pipeline 1 penetrating through a frozen soil layer 2, when the discharge pipeline 1 stops supplying water, an exhaust valve 8 on the exhaust pipeline 6 needs to be opened, so that the reserved water in the discharge pipeline 1 positioned in the frozen soil layer 2 and above the frozen soil layer flows back to the water well along the exhaust pipeline 6, and the discharge pipeline 1 is prevented from.
The method can be applied to northern areas, such as water for outdoor public toilets, including toilet flushing and hand washing; can also be used for indoor tap water supply systems of northern families and other places for outdoor use with water below zero.
Of course, the liquid discharge pipe anti-freezing method provided by the invention can also be used on the ground, such as on the solar water heater 9 above the bathing room 20 in fig. 2, and when the liquid is discharged downwards from the discharge pipe 1 on the ground, the whole discharge pipe 1 is located in the solidification environment of water. An exhaust valve 7 and a pressure relief port 30 are arranged on a root pipeline of the exhaust pipeline, and the pressure relief port 30 is arranged close to an outlet of the exhaust valve 7; closing the discharge valve 7 on the discharge pipeline 1 and simultaneously opening the pressure relief port 30 on the discharge pipeline 1; the external atmospheric pressure is communicated with the discharge pipeline 1, and the water in the discharge pipeline 1 is discharged under the action of the self weight of the water, so that the problems of frost crack and the like of the water discharge pipeline of the solar water heater in the bathroom are avoided.
When the evacuation pipeline 6 is arranged at the pressure relief opening, attention needs to be paid to the fact that when water is normally used, in order to avoid liquid flowing out of the evacuation pipeline 6, the opening at the upper end of the evacuation pipeline 6 needs to be higher than the height of liquid to be discharged in the discharge pipeline 1, and at the moment, an evacuation valve 8 does not need to be arranged on the evacuation pipeline 6; the discharge valve 7 on the discharge pipeline 1 is closed, and the liquid in the discharge pipeline 1 is communicated with the external atmosphere, so that the liquid in the discharge pipeline 1 is discharged out of the pipeline by the self weight, and can be discharged to an anti-freezing area with higher temperature for preventing the liquid from solidifying. This is the simplest application method and the most reliable use effect.
Certainly can also close the blow-off valve on the discharge line through setting up the blowoff valve in pressure release department, open the blowoff valve simultaneously, the remaining liquid in the discharge line communicates with external atmosphere, will directly discharge the discharge line under the weight effect, has avoided the pipeline to take place cracked problem because of freezing.
As shown in fig. 3, the most preferred underground liquid discharge pipeline anti-freezing device provided by the present invention is disposed on a discharge pipeline 1 of a liquid storage tank 3 with pressure, the liquid storage tank 3 is disposed in an underground anti-freezing soil layer 10, the discharge pipeline 1 extends upward from the underground anti-freezing soil layer 10 and penetrates through a frozen soil layer 2, a pressure relief opening is disposed on the discharge pipeline 1 in the anti-freezing soil layer 10, and a three-way control valve 40 is disposed at the pressure relief opening; controlling the three-way control valve 40 to be opened, and discharging the liquid in the liquid storage tank 3 from the discharge pipeline 1; and closing the control three-way control valve 40, and discharging the reserved water in the discharge pipeline 1, which is reserved in the frozen soil layer 2 and the area above the frozen soil layer, to the area of the anti-freezing soil layer 10 from the pressure relief port 30.
Meanwhile, an outlet end of the three-way control valve 40 is connected with an evacuation pipeline 6, and the outlet end of the evacuation pipeline 6 is arranged in the underground water well 5.
The three-way control valve 40 is commercially available, and is easy to assemble and low in cost. The three-way control valve adopts a three-way electric control valve, and the automatic drainage and automatic evacuation treatment of the water heater are realized by intelligently controlling the drainage and the stored water evacuation of the three-way electric control valve.
In addition, fig. 2 is a liquid discharge pipeline anti-freezing device applied to a solar water heater, which is arranged on a discharge pipeline 1 of a solar water heater 9, wherein a discharge valve 7 and a pressure relief opening 30 are arranged at a position close to the root of the discharge pipeline 1, and the pressure relief opening 30 is arranged close to the outlet end of the discharge valve 7; the pressure relief port is controlled to be closed, the discharge valve 7 is opened, and the discharge pipeline 1 discharges water in the solar water heater 9; the pressure relief opening 30 is controlled to be opened, when the discharge valve 7 is closed, the discharge pipeline 1 is communicated with the atmosphere through the pressure relief opening, and the reserved water in the discharge pipeline 1 is discharged, so that the pipeline is prevented from being frozen and cracked. Of course, an evacuation valve is preferably used in this embodiment to control the opening and closing of the pressure relief port. It is also possible to use only one discharge valve on the discharge line as shown in fig. 2, connect the evacuation line 6 at the pressure relief port, and the outlet end of the evacuation line 6 is higher than the height of the remaining liquid in the discharge line 1, which is the lowest cost and the best usage.
The discharge valve and the emptying valve adopted in the invention can adopt electric valves or mechanical valves, and the discharge valve and the emptying valve on the discharge pipeline are in a closed state when the emptying valve is opened and are in an open state when the emptying valve is closed by a synchronous electric control or manual control mode, so that the opening and closing actions of the discharge valve and the emptying valve are intelligently controlled, and the automation degree is high.
The invention can connect the discharge pipeline to the indoor living facilities such as a hand basin, a toilet and the like, can also be used in other fields such as petroleum, chemical industry and the like where pipelines are easy to freeze, and has wide application.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (12)
1. A liquid discharge pipeline anti-freezing method is characterized in that a discharge pipeline of a liquid storage tank is provided with a pressure relief port communicated with the discharge pipeline, when the discharge pipeline is closed to stop liquid conveying, the pressure relief port communicated with the discharge pipeline is synchronously opened, and residual liquid in the discharge pipeline flows back to a temperature area for preventing liquid from being solidified from a liquid solidification temperature area by means of self weight under the action of the pressure relief port.
2. The liquid discharge piping antifreeze method according to claim 1, wherein when the solidification temperature of the discharged liquid is zero or below, the liquid storage tank is buried in the underground antifreeze layer, and the discharge pipe is liquid-discharged by penetrating the underground antifreeze layer upwardly through the antifreeze layer; arranging an exhaust valve and a pressure relief port on an exhaust pipeline positioned on the anti-freezing soil layer, wherein the pressure relief port is arranged close to the outlet end of the exhaust valve; closing a discharge valve on the discharge pipeline, and simultaneously opening a pressure relief opening on the discharge pipeline to communicate the liquid reserved in the discharge pipeline with the pressure relief opening, wherein the reserved liquid flows back to the anti-freeze soil layer area through the pressure relief opening.
3. The method of claim 2, wherein an evacuation line having an evacuation valve is connected to the pressure relief port; closing the discharge valve, and simultaneously opening an exhaust valve on an exhaust pipeline to enable the pressure relief port to be in an open state; the residual liquid in the discharge pipeline is communicated with the pressure relief port and flows back to the area of the anti-freezing soil layer through the emptying pipeline by the aid of the self weight of the liquid.
4. The method of claim 3, wherein an outlet end of the drain line is provided in the underground water well, and the liquid remaining in the drain line is returned to the well by its own weight.
5. The liquid discharge pipeline anti-freezing method according to claim 1, wherein when the discharge pipeline performs liquid discharge from top to bottom on the ground and the whole discharge pipeline is located in the liquid solidification region, a discharge valve and a pressure relief port are arranged on a root pipeline of the discharge pipeline, and the pressure relief port is arranged close to an outlet of the discharge valve; closing a discharge valve on a discharge pipeline and simultaneously opening a pressure relief opening on the discharge pipeline; the remaining liquid in the discharge line drains or flows back by its own weight to a temperature region where the liquid is prevented from solidifying.
6. The method of claim 5, wherein the drain valve of the drain line is closed by providing an evacuation valve at the pressure relief port, and the evacuation valve is opened, so that the remaining liquid in the drain line is communicated with the atmospheric pressure to drain or return the remaining liquid to a temperature region where the liquid is prevented from solidifying.
7. The antifreeze method for liquid discharge pipes according to claim 5, wherein a normally open drain line is provided at the pressure relief port, and an upper opening of the drain line is higher than the level of the liquid remaining in the discharge line; and closing a discharge valve on the discharge pipeline, and discharging or refluxing the residual liquid in the discharge pipeline to a temperature area for preventing the liquid from solidifying by means of the self weight.
8. The antifreeze method for liquid discharge pipes according to claim 3, 4 or 6, wherein the drain valve is in a closed state when the drain valve and the drain valve on the discharge pipe are opened, and the drain valve is in an open state when the drain valve is closed, by a synchronous electric control or manual control mode.
9. The anti-freezing device for the liquid discharge pipeline is arranged on a discharge pipeline (1) of a liquid storage tank (3) with pressure, and is characterized in that the liquid storage tank (3) is arranged in an underground anti-freezing soil layer (10), the discharge pipeline (1) extends upwards from the underground anti-freezing soil layer (10) and penetrates through a frozen soil layer (2), a pressure relief opening (30) is formed in the discharge pipeline (1) in the anti-freezing soil layer (10), and a three-way control valve (40) is arranged at the position of the pressure relief opening (30); controlling the three-way control valve (40) to be opened, and discharging the liquid in the liquid storage tank (3) from the discharge pipeline (1); and controlling the three-way control valve (40) to be closed, and discharging the reserved water in the discharge pipeline (1) which is reserved in the frozen soil layer (2) and the areas above the frozen soil layer to the area of the anti-freezing soil layer (10) from the pressure relief port (30).
10. The antifreeze apparatus for liquid discharge piping according to claim 9, wherein an outlet end of said three-way control valve (40) is connected to an evacuation piping (6), and an outlet end of said evacuation piping (6) is disposed in the groundwater well (5) of said liquid storage tank (3).
11. A liquid discharge pipeline anti-freezing device is arranged on a discharge pipeline (1) of a solar water heater (9), and is characterized in that a discharge valve (7) and a pressure relief opening (30) are arranged at the position close to the root part of the discharge pipeline (1), and the pressure relief opening (30) is arranged close to the outlet end of the discharge valve (7); the pressure relief opening is controlled to be closed, the discharge valve (7) is opened, and the discharge pipeline (1) discharges water in the solar water heater (9); and controlling the pressure relief port (30) to be opened, and when the discharge valve (7) is closed, the discharge pipeline (1) is communicated with the atmosphere through the pressure relief port, and the reserved water in the discharge pipeline (1) is discharged.
12. The antifreeze apparatus for liquid discharge pipes according to claim 11, wherein an evacuation pipeline (6) is connected to the pressure relief port (30), and an outlet end of the evacuation pipeline (6) is higher than the level of the liquid remaining in the discharge pipeline (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811078177.8A CN110906170A (en) | 2018-09-16 | 2018-09-16 | Liquid discharge pipeline anti-freezing method and anti-freezing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811078177.8A CN110906170A (en) | 2018-09-16 | 2018-09-16 | Liquid discharge pipeline anti-freezing method and anti-freezing device thereof |
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| CN110906170A true CN110906170A (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811078177.8A Pending CN110906170A (en) | 2018-09-16 | 2018-09-16 | Liquid discharge pipeline anti-freezing method and anti-freezing device thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111854244A (en) * | 2020-07-31 | 2020-10-30 | 江苏西墅新能源科技有限公司 | Anti-icing device of ground source heat pump unit |
| CN114322334A (en) * | 2021-11-29 | 2022-04-12 | 郑州大学 | Tower type solar heat collection steam heating system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075325U (en) * | 1990-08-14 | 1991-04-17 | 北京市太阳能研究所 | Drainage device |
| CN2080954U (en) * | 1990-11-15 | 1991-07-17 | 奚家国 | Water-saving and anti-freezing device for water tap in open |
| CN2344731Y (en) * | 1998-09-29 | 1999-10-20 | 淮阴辉煌太阳能有限公司 | Solar water heater with anti-freezing pipeline |
| CN2937255Y (en) * | 2006-07-21 | 2007-08-22 | 王勋征 | Anti-freezing device of running water tap |
| CN201072240Y (en) * | 2007-05-22 | 2008-06-11 | 王明金 | Solar water heater with deicing equipment |
| CN101481920A (en) * | 2009-01-21 | 2009-07-15 | 刘德鹏 | Mechanical type full-automatic antifreezing device for upper and lower water pipe emptying |
| CN202254422U (en) * | 2011-09-14 | 2012-05-30 | 宋凤敏 | Anti-freezing device for solar water heater pipeline |
| CN105155619A (en) * | 2015-07-09 | 2015-12-16 | 中国人民解放军总后勤部建筑工程规划设计研究院 | Anti-freezing method and device of water wells in perennial frozen soil |
| CN105333621A (en) * | 2015-10-30 | 2016-02-17 | 方超 | Antifreezing solar water heater |
| CN206859315U (en) * | 2017-04-21 | 2018-01-09 | 西藏曌德道科技有限公司 | A kind of highlands supply channel antifreeze control system |
-
2018
- 2018-09-16 CN CN201811078177.8A patent/CN110906170A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075325U (en) * | 1990-08-14 | 1991-04-17 | 北京市太阳能研究所 | Drainage device |
| CN2080954U (en) * | 1990-11-15 | 1991-07-17 | 奚家国 | Water-saving and anti-freezing device for water tap in open |
| CN2344731Y (en) * | 1998-09-29 | 1999-10-20 | 淮阴辉煌太阳能有限公司 | Solar water heater with anti-freezing pipeline |
| CN2937255Y (en) * | 2006-07-21 | 2007-08-22 | 王勋征 | Anti-freezing device of running water tap |
| CN201072240Y (en) * | 2007-05-22 | 2008-06-11 | 王明金 | Solar water heater with deicing equipment |
| CN101481920A (en) * | 2009-01-21 | 2009-07-15 | 刘德鹏 | Mechanical type full-automatic antifreezing device for upper and lower water pipe emptying |
| CN202254422U (en) * | 2011-09-14 | 2012-05-30 | 宋凤敏 | Anti-freezing device for solar water heater pipeline |
| CN105155619A (en) * | 2015-07-09 | 2015-12-16 | 中国人民解放军总后勤部建筑工程规划设计研究院 | Anti-freezing method and device of water wells in perennial frozen soil |
| CN105333621A (en) * | 2015-10-30 | 2016-02-17 | 方超 | Antifreezing solar water heater |
| CN206859315U (en) * | 2017-04-21 | 2018-01-09 | 西藏曌德道科技有限公司 | A kind of highlands supply channel antifreeze control system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111854244A (en) * | 2020-07-31 | 2020-10-30 | 江苏西墅新能源科技有限公司 | Anti-icing device of ground source heat pump unit |
| CN111854244B (en) * | 2020-07-31 | 2021-10-22 | 江苏西墅新能源科技有限公司 | Anti-icing device of ground source heat pump unit |
| CN114322334A (en) * | 2021-11-29 | 2022-04-12 | 郑州大学 | Tower type solar heat collection steam heating system |
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Application publication date: 20200324 |