CN218034641U

CN218034641U - Heat supply pipeline flushing system

Info

Publication number: CN218034641U
Application number: CN202222312455.XU
Authority: CN
Inventors: 翟文恒; 朱长耀; 王超; 郭志鹏; 邵坤鹏; 张子琪
Original assignee: Qingdao Enn Clean Energy Co ltd
Current assignee: Qingdao Enn Clean Energy Co ltd
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2022-12-13
Anticipated expiration: 2032-09-01

Abstract

The utility model provides a heat supply pipeline rinse-system relates to heat supply pipeline cleaning equipment technical field. The system comprises a heat exchanger, a circulating water pump, a dirt separator, a flushing control unit, a high-area switching butterfly valve and a low-area switching butterfly valve, wherein a joint switch is arranged between the heat exchanger and the flushing control unit, the circulating water pump is arranged on a heat supply pipeline, the dirt separator is arranged on an upstream pipeline of the circulating water pump, the flushing control unit is arranged on a connecting pipeline between each heat supply pipeline, the system comprises an ejector, a water tank, a first valve, a second valve and a third valve, the first valve is arranged on the upstream of the ejector, the second valve is arranged on the downstream of the ejector, the water tank is connected with the downstream of the ejector through a pipeline provided with the third valve, and the high-area switching butterfly valve and the low-area switching butterfly valve are respectively arranged on the heat supply pipeline. This system can utilize pipeline water and water pitcher water storage to wash the low-pressure region fast and realize quick drainage, effectual clearance dirt.

Description

Heat supply pipeline flushing system

Technical Field

The utility model belongs to the technical field of heat supply pipeline cleaning equipment technique and specifically relates to a heat supply pipeline rinse-system.

Background

Along with the rising of high-rise residential building, newly-built house mostly surpasss 20 layers, mostly 33 layers, and the floor heating pipe pressure-bearing is only 0.8MPa, leads to the heat supply to have to divide the high low district setting, leads to the fact the accident in order to prevent that the super floor heating pipe pressure-bearing of low floor from causing. Taking 33 storied houses as an example, the design is that the lower of 17 stories is set as a low area, and 18-33 stories are set as high areas to supply heat respectively. Because two systems, in the prior art, in the heat supply preparation stage, the pipeline flushing is divided into high and low areas to respectively carry out flushing after a circulating water pump is started and water discharging after the pump is stopped, so that a large amount of tap water is used for flushing and then discharged, the discharged water cannot be recycled, and because the water pump cannot run during water discharging, the water discharging is slow, so that dirt still deposits in a large amount, the flushing is not thorough for multiple times, the problem of water waste is caused, and the relatively clean flushing water cannot be recycled.

SUMMERY OF THE UTILITY MODEL

In order to wash the low-pressure area fast and realize the effectual clearance dirt of quick drainage, the utility model provides a heat supply pipeline rinse-system, concrete technical scheme as follows.

A heat supply pipeline flushing system comprises a heat exchanger, a circulating water pump, a dirt separator, a flushing control unit, a high-region switching butterfly valve and a low-region switching butterfly valve, wherein a joint switch is arranged between the heat exchanger and the flushing control unit; the heat supply pipeline comprises a high-region heat supply pipeline and a low-region heat supply pipeline, and the high-region switching butterfly valve is arranged on the high-region heat supply pipeline and the low-region switching butterfly valve is arranged on the low-region heat supply pipeline.

Preferably, the high-region heat supply pipeline is connected with the low-region heat supply pipeline, water flow in the high-region heat supply pipeline is accelerated through the ejector, and negative pressure is formed at the pipeline joint of the water tank.

Preferably, the injector is a venturi injector.

Preferably, the water pressure in the high-region heat supply pipeline is more than or equal to 0.9MPa.

Preferably, the high-region switching butterfly valve, the low-region switching butterfly valve, the first valve, the second valve and the third valve all use automatic switch valves.

Preferably, 2 circulating water pumps are arranged on the heat supply pipeline in parallel, and valves are respectively arranged at the upstream and the downstream of each circulating water pump.

Preferably, the high-range switching butterfly valve comprises a first valve, a second valve and a third valve, and the low-range switching butterfly valve comprises a fourth valve, a fifth valve and a sixth valve.

The utility model provides a heat supply pipeline flushing system has the advantages that through setting up the flushing control unit and dividing high area and low area, the valve is set up reasonably, thereby recycling part of comparatively clean flushing water, and guaranteeing that the flushing water flows fast under the state of not opening the circulating water pump, and taking away dirt; the water flow of the control system is accelerated after passing through the Venturi ejector, and the water in the water tank is sucked into the low-region pipeline by utilizing the siphon principle to form a large amount of flushing water to rapidly flush the pipeline; the nozzle of the Venturi ejector cannot be blocked by sundries, the cleaning effect is ensured, and the system also has the advantages of convenience in installation and the like.

Drawings

FIG. 1 is a schematic diagram of a heating line flushing system arrangement;

FIG. 2 is a schematic diagram of a flush control unit;

in the figure: 1-heat exchanger, 2-circulating water pump, 3-dirt separator, 4-flushing control unit, 5-high region switching butterfly valve, 6-low region switching butterfly valve, 7-valve I, 8-valve II, 9-valve III, 10-valve IV, 11-valve V, 12-valve VI, 13-ejector, 14-water tank, 15-first valve, 16-second valve and 17-third valve.

Detailed Description

An embodiment of a heat supply pipeline flushing system provided by the invention is described with reference to fig. 1 and 2.

The utility model provides a heat supply pipeline rinse-system, including heat exchanger 1, circulating water pump 2, dirt separator 3, wash the control unit 4, high district switches butterfly valve 5 and low district and switches butterfly valve 6, circulating water pump 2 provides power for the pipeline water, dirt separator 3 can accomplish through the blowdown valve and drain when washing, wash control unit 4 and utilize the venturi principle to realize rivers with higher speed, high district switches setting up of butterfly valve 5 and low district switching butterfly valve 6 and has made things convenient for washing of pipeline. This system pours into the heating pipeline of low district with the comparatively clean sparge water in the heating pipeline of high district internal portion, utilizes venturi and siphon principle, washes low district pipeline and quick drainage with high district and water pitcher internal water with higher speed, has solved the heating pipeline and has washed the stage and use a large amount of running water circulation to wash, discharges the slow dirt of back and still a large amount of deposits, especially the comparatively clean sparge water in later stage problem extravagant in a large number.

Wherein, a joint switch is arranged between the heat exchanger 1 and the flushing control unit, and can be a flange structure or a connecting pipe device; the lines need to be disconnected from the flushing system before flushing, so that clogging of the inside of the heat exchanger can be prevented. The circulating water pump 2 is arranged on the heat supply pipeline, and the dirt separator 3 is arranged on an upstream pipeline of the circulating water pump. The flushing control unit 4 is arranged on a connecting pipeline between each heating pipeline, the flushing control unit 4 comprises an ejector 13, a water tank 14, a first valve 15, a second valve 16 and a third valve 17, the first valve 15 is arranged at the upstream of the ejector, the second valve 16 is arranged at the downstream of the ejector, and the water tank 14 is connected with the downstream of the ejector through a pipeline provided with the third valve. The heat supply pipeline comprises a high-region heat supply pipeline and a low-region heat supply pipeline, and the high-region switching butterfly valve 5 is arranged on the high-region heat supply pipeline and the low-region switching butterfly valve is arranged on the low-region heat supply pipeline. The high-region heat supply pipeline is connected with the low-region heat supply pipeline, water flow in the high-region heat supply pipeline is accelerated through the ejector, and negative pressure is formed at the pipeline connection position of the water tank 14. The high-region switching butterfly valve comprises a first valve 7, a second valve 8 and a third valve 9, and the low-region switching butterfly valve comprises a fourth valve 10, a fifth valve 11 and a sixth valve 12.

The ejector is a venturi ejector. The water pressure in the heat supply pipeline of the high region is more than or equal to 0.9MPa. The high-region switching butterfly valve 5, the low-region switching butterfly valve 6, the first valve 15, the second valve 16 and the third valve 17 all use automatic switch valves; the cooperation of first valve, second valve and third valve can keep apart high district's heat supply pipeline and low district's heat supply pipeline.

2 circulating water pumps 2 are arranged on the heat supply pipeline in parallel, and valves are respectively arranged at the upstream and the downstream of the circulating water pumps 2.

The system utilizes the pressure difference between the high area and the low area, the water flow is accelerated after the water passes through the Venturi ejector, and the siphon principle is utilized to suck the water in the water tank into the low area pipeline, so that a large amount of flushing water can be formed to quickly flush the pipeline. The nozzle of the Venturi ejector can not be blocked by sundries, and the valve from the high area to the low area is closed in time when the water quantity in the high area is insufficient after siphoning is required to be formed.

Before flushing, the first valve of the Venturi system valve is kept closed, the third valve is kept closed, the second valve is kept opened, and after the high-zone flushing is finished, the high-zone circulating water pump is stopped. And then opening a second valve and a third valve, closing the first valve, opening a fifth valve, then closing a fourth valve and a sixth valve, and keeping the state of no water in the low-region pipeline. The first valve is then opened and the high zone flush water enters the low zone line through the venturi eductor with its own higher pressure (0.9 MP). The water flow is accelerated after passing through the Venturi ejector, the washing effect is good, and negative pressure is formed in the pipeline above the water tank. Opening a third valve, and bringing water in the water tank into a flushing pipeline for quick flushing by utilizing a Venturi principle and a siphon principle; the flushing water is quickly discharged through the dirt separator, and impurities such as dirt and the like are discharged.

Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.

Claims

1. A heat supply pipeline flushing system is characterized by comprising a heat exchanger, a circulating water pump, a dirt separator, a flushing control unit, a high-region switching butterfly valve and a low-region switching butterfly valve, wherein a joint switch is arranged between the heat exchanger and the flushing control unit; the heat supply pipeline comprises a high-region heat supply pipeline and a low-region heat supply pipeline, the high-region switching butterfly valve is arranged on the high-region heat supply pipeline, and the low-region switching butterfly valve is arranged on the low-region heat supply pipeline.

2. The system according to claim 1, wherein the high-side heating pipeline is connected to the low-side heating pipeline, and water in the high-side heating pipeline is accelerated by the ejector to form negative pressure at the pipeline connection of the water tank.

3. A heating line flushing system according to claim 1, wherein the ejector is a venturi ejector.

4. The heating pipeline flushing system of claim 1, wherein the water pressure in the high-region heating pipeline is greater than or equal to 0.9MPa.

5. The heating pipeline flushing system of claim 1, wherein the high-region switching butterfly valve, the low-region switching butterfly valve, the first valve, the second valve and the third valve are all automatically opened and closed valves.

6. The heating pipeline flushing system of claim 1, wherein 2 circulating water pumps are connected in parallel on the heating pipeline, and valves are respectively arranged at the upstream and downstream of the circulating water pumps.

7. A heating pipeline flushing system as claimed in claim 1, wherein the high range switching butterfly valve includes valve one, valve two and valve three, and the low range switching butterfly valve includes valve four, valve five and valve six.