CN217177864U

CN217177864U - Pipeline anti-freezing device in cold area

Info

Publication number: CN217177864U
Application number: CN202220515140.2U
Authority: CN
Inventors: 李杰慧; 刘祖明; 孙建平; 李艳雄; 敖选; 金塍川
Original assignee: Yunnan Zy Energy Corp
Current assignee: Yunnan Zy Energy Corp
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-08-12
Anticipated expiration: 2032-03-10

Abstract

The utility model relates to a pipeline anti-freezing device in cold areas, which is arranged at the water pump water lifting part and the lowest U-shaped bend part of a middle pipeline, wherein the water pump water lifting part comprises a micro-leakage switch valve arranged on a main pipeline, a micro-leakage automatic control solenoid valve arranged at one side of the micro-leakage switch valve and a micro-leakage pipeline arranged at one side of the micro-leakage automatic control solenoid valve; the lowest part of the U-shaped bend of the middle pipeline is provided with a reducing tee joint, and the lower end of the reducing tee joint, the high-pressure gate valve, the pressure reducing valve and the low-pressure gate valve are sequentially connected. The utility model discloses it is significant to the problem of preventing frostbite of solving outdoor long pipeline, very important to similar applications such as mountain area photovoltaic water pump, brings very huge economic benefits for similar applications such as cold area photovoltaic water pump system, or avoids requiring the manual work to go every day to do the heavy work of drainage operation basically.

Description

Pipeline anti-freezing device in cold area

Technical Field

The utility model relates to a pipeline freeze-proof device, especially a pipeline freeze-proof device in cold areas.

Background

Water pump or photovoltaic water pump systems are beginning to be widely accepted and are particularly suitable for use in remote villages. At present, when a photovoltaic water pump system is used in some high-altitude areas or northern areas in winter, because the environmental temperature is below 0 ℃, the problem that the pipeline needs to be protected from freezing is solved. Currently, there are only three methods:

1. the traditional buried pipelines are adopted, all the pipelines are buried below a frozen soil layer, and heat of the soil is utilized to preserve heat, so that the temperature of the pipelines is ensured to be above 0 ℃. The method is difficult to realize in stone and mountain areas, and the construction cost is too high.

2. The heating package is additionally arranged outside the pipeline, the temperature of the pipeline is ensured to be higher than 0 ℃ by electric heating, a storage battery system needs to be added to the system, the service life of a conventional lead-acid storage battery is only 3-5 years, the service life of the whole photovoltaic water pump system is greatly influenced, and the investment is greatly increased.

3. The pumping stations near the village can also be used for emptying water in the pipeline to protect the pipeline manually, but some pumping stations are far away from the village, the emptying is basically difficult to realize manually, and the labor investment is too large. Research and development of a more reliable and cheaper water pump system pipeline anti-freezing device have wide market demands and are also current urgent tasks.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a pipeline freeze-proof device in cold area, the concrete scheme is as follows:

a pipeline anti-freezing device in cold areas is arranged at the water pumping part of a water pump and the lowest part of a U-shaped bend of a middle pipeline, wherein the water pumping part of the water pump comprises a micro-leakage switch valve arranged on a main pipeline, a micro-leakage automatic control electromagnetic valve arranged on one side of the micro-leakage switch valve and a micro-leakage pipeline arranged on one side of the micro-leakage automatic control electromagnetic valve; the U-shaped bend of the middle pipeline is provided with a reducing tee joint, a high-pressure gate valve, a pressure reducing valve and a low-pressure gate valve at the lowest part, and the lower end of the reducing tee joint is sequentially connected with the high-pressure gate valve, the pressure reducing valve and the low-pressure gate valve.

Furthermore, the micro-leakage self-control electromagnetic valve is controlled by a micro-leakage self-control circuit.

Further, the water pump is shut down and the micro-leakage switch valve is opened at night.

Furthermore, the U-shaped bend of the middle pipeline is provided with a reducing tee joint, a pressure reducing valve, a gate valve and a gate valve well with a lock at the lowest part, and discontinuous water dripping is formed at the lowest part of the U-shaped bend of the pipeline in a frost cold season through the pressure reducing valve and the gate valve behind the pressure reducing valve.

Furthermore, the pressure reducing valve and the gate valve are all closed in non-cold seasons, so that dripping and leakage are avoided.

Compared with the prior art, the beneficial effects of the utility model are as follows:

to the winter pipeline lead to the pipeline frost crack problem because the temperature is less than 0 ℃, the utility model discloses the innovation has been solved systems such as photovoltaic water pump system and has been used the pipeline in cold areas winter and can the frost crack problem, if to the demand of the actual project in the high altitude area of di qing zhou of Yunnan province, utilize the pipeline structure that leaks a little + controllable (when moving) not to leak the pipeline structure and realize preventing frostbite. The water pump is opened by the normally open micro electromagnetic valve when not pumping water, so that water in the pipeline can flow downwards, the water can be drained even for a long time, the water is not easy to freeze in the flowing state, and the pipeline is prevented from being frozen due to the fact that the temperature is below zero. The micro electromagnetic valve is used as a key of the invention, and water can be quickly and completely emptied once the conventional large-caliber electromagnetic valve is opened, so that the pipeline is well protected from freezing, but no water exists in the pipeline when water needs to be pumped, and the water can be discharged from the high-level water tank after the pipeline is filled with water again. If the stopping time is short, less water is discharged, and the running time that the water pump needs to replenish water in all pipelines is reduced. And moreover, the electromagnetic valve is small in caliber, low in power consumption and low in price, and can save investment for a system adopting photovoltaic power supply, so that the electromagnetic valve has good economy.

When the pipeline is not provided with the U-shaped bend, the anti-freezing problem of the pipeline in winter can be completely solved only by the device. To the circumstances that can't avoid having the U type to bend because of the topography influence, increase manual microleakage device in the curved lowest department of pipeline U type, this manual microleakage device has reducing tee bend, relief pressure valve, gate valve and the gate valve well of area lock, and the microleakage valve is opened to the manual work in the cold season that probably takes place to frost, avoids the low recess pipeline normal water to freeze and damages the pipeline. In non-cold seasons, the pressure reducing valve and the gate valve are completely closed, so that micro leakage is avoided. The reducing tee joint is adopted for micro leakage, and only a small pressure reducing valve and a small gate valve are needed, so that the investment can be reduced. The arrangement of the well with the lock gate valve avoids damage caused by misoperation of the gate valves by irrelevant personnel.

All be equipped with a ordinary gate valve in the front of the microleakage valve, can close this gate valve bypass pipeline function of preventing frostbite in the cold season when non-winter pipeline can not freeze and split, make the pipeline all fill with water at any time, the water pump just can go out water as soon as starting, avoids appearing the condition of wasting water.

Drawings

FIG. 1 is a schematic structural view of a pipe freeze protection device according to the present application;

fig. 2 is a schematic structural view of the pipe of the present application when U-bent.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some examples of the present invention, not all examples. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

As shown in fig. 1, the pipe antifreeze apparatus of the present embodiment includes a micro-leakage switch valve 2 disposed on a main water lifting pipe 1, a micro-leakage self-control solenoid valve 3 disposed on one side of the micro-leakage switch valve 2, and a micro-leakage pipe 4 disposed on one side of the micro-leakage self-control solenoid valve 3, wherein the micro-leakage self-control solenoid valve 3 is controlled by a micro-leakage self-control circuit 5. The micro-leakage switch is a switch with a small aperture, and the aperture of 2mm is actually adopted in the embodiment. The micro-leakage self-control circuit 5 is a circuit of a conventional switch in the prior art.

The valve 2 is additionally arranged at the lowest point of the upward main pipeline 1, and then the micro-leakage automatic control electromagnetic valve 3 is added, leaked water is discharged to a place where the leakage is expected to be discharged through the micro-leakage pipeline 4, wherein the micro-leakage automatic control electromagnetic valve is controlled by the micro-leakage automatic control circuit 5. The power supply of the part can be provided by a conventional power supply or a solar power supply, and the photovoltaic (or solar) power supply is very suitable for being used in occasions without the conventional power supply in the field.

The principle of automatic control is when the temperature is close 0 ℃, start microleakage automatic control solenoid valve 3, microleakage switch valve 2 opens this moment, and the weather does not need to prevent frostbite when warm, can close this valve, and the water of main line is got rid of through this branch road, and water has an outside flowing state, and the size that flows can be adjusted according to local weather, and the water evacuation with the main line is even for a long time, prevents like this that water from freezing and the frost crack pipeline.

When the valve is used for the U-shaped bend of the pipeline, a reducing tee joint 6 needs to be connected to the lowest point of the U-shaped bend of the pipeline, a water outlet is connected to the lower part of the reducing tee joint 6, a high-pressure gate valve 7, a pressure reducing valve 8 and a low-pressure gate valve 9 are sequentially arranged, the main pipeline of the sleeve gate valve is opened in cold seasons, micro leakage can be caused, and frost cracking of the pipeline due to freezing of water in the pipeline is avoided. When there are multiple pipe U-bends, it is necessary to install this device at the lowest point of each pipe U-bend, as shown in fig. 2. The water pipe is slightly leaked, so that the influence on water delivery of the pipeline is small, the pipe can be opened in the whole cold season and closed in the non-cold season, and the micro leakage is avoided.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a cold area pipeline freeze-proof device which characterized in that: the water pump water lifting part comprises a micro-leakage switch valve arranged on the main pipeline, a micro-leakage automatic control electromagnetic valve arranged on one side of the micro-leakage switch valve and a micro-leakage pipeline arranged on one side of the micro-leakage automatic control electromagnetic valve; the U-shaped bend of the middle pipeline is provided with a reducing tee joint, a high-pressure gate valve, a pressure reducing valve and a low-pressure gate valve at the lowest part, and the lower end of the reducing tee joint is sequentially connected with the high-pressure gate valve, the pressure reducing valve and the low-pressure gate valve.

2. The cold area pipe antifreeze of claim 1, wherein: the micro-leakage self-control electromagnetic valve is controlled by a micro-leakage self-control circuit.

3. The cold area pipe antifreeze of claim 1, wherein: the water pump is stopped and the micro-leakage switch valve is opened at night.

4. The cold area pipe antifreeze of claim 1, wherein: the U-shaped bend of the middle pipeline is provided with a reducing tee joint, a pressure reducing valve, a gate valve and a gate valve well with a lock at the lowest part, and discontinuous water dripping is formed at the lowest part of the U-shaped bend of the middle pipeline in the frost cold season through the pressure reducing valve and the gate valve behind the pressure reducing valve.

5. The cold area pipe antifreeze of claim 1, wherein: in non-cold seasons, the pressure reducing valve and the gate valve are all closed, so that water leakage is avoided.