Backwashing device for heating power inlet of unit

Abstract

The utility model discloses a unit heating power inlet backwashing device which comprises a cleaning vehicle, a plurality of vehicle doors are arranged on the side wall of the cleaning vehicle, an equipment bin and a sewage tank are arranged in the cleaning vehicle, and a sewage outlet is formed in the sewage tank in a penetrating manner; a flushing pipeline and a backwashing pipeline are arranged in the equipment bin and are connected with a water inlet main pipe and a water return main pipe of the heating power inlet, a water inlet valve and a Y-shaped filter are arranged on the water inlet main pipe, and a water return valve is arranged on the water return main pipe; the water inlet pipe and the water outlet pipe are connected to the two sides of the water inlet valve respectively, the pressurizing circulating pump is arranged between the water inlet pipe and the water outlet pipe, and the backflow pipe is connected to the water return main pipe. The heating pipeline cleaning device is novel in design and simple in structure, the pipelines are integrated through the design of the equipment bin, connection with the heating pipeline and centralized control are facilitated, operation is convenient, and the cleaning effect and cleaning efficiency of the heating pipeline are well improved through the design of flushing and back flushing.

Description

Technical Field

[0001] This utility model relates to the field of heating system technology, and in particular to a unit thermal inlet backflushing device. Background Technology

[0002] The heat inlet device is typically connected to the heating pipes before they enter the building and is used to control, regulate, and adjust the pressure and flow rate of the heating medium. During the use of the heating system, it is inevitable that dirt such as iron filings will accumulate in the heating pipes, which will affect the heating effect and the life of the pipes to some extent. Therefore, it is necessary to clean the heating pipes.

[0003] Traditional cleaning methods for heat inlets mostly require open-loop flushing, which generally results in mediocre cleaning effects and makes backwashing difficult, making filter cleaning challenging and maintenance inefficient. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as mediocre cleaning effects and difficulty in cleaning filters, by proposing a unit thermal inlet backwashing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A unit thermal inlet backwashing device includes a cleaning vehicle with multiple doors on its side wall. The cleaning vehicle contains an equipment compartment and a wastewater tank, and a wastewater outlet is provided through the wastewater tank.

[0007] The equipment compartment is equipped with flushing pipes and backflushing pipes, both of which are connected to the main inlet water pipe and the main return water pipe of the heat inlet. The main inlet water pipe is equipped with an inlet water valve and a Y-type filter, and the main return water pipe is equipped with a return water valve.

[0008] The flushing pipeline includes an inlet pipe and an outlet pipe connected to both sides of the inlet valve, a booster circulation pump located between the two, and a return pipe connected to the return water main pipe. The inlet pipe is equipped with a check valve, the outlet pipe is equipped with a first valve, and the return pipe is equipped with a second valve and a second filter. The other end of the return pipe is connected to the inlet end of the booster circulation pump.

[0009] Preferably, a drain pipe is provided on the return pipe before the second filter, and the other end of the drain pipe is connected to the sewage tank.

[0010] Preferably, a waste discharge pipe is provided on the return pipe before the second filter.

[0011] Preferably, the outlet of the booster circulation pump is connected to a filter cleaning pipe, the other end of which is connected to the backwash valve of the Y-type filter, and a fourth valve is provided on the filter cleaning pipe.

[0012] Preferably, the backwashing pipeline includes a backwash pipe connected between the outlet of the booster circulation pump and the return water main pipe, the backwash pipe is equipped with a third valve, and the backwash pipe and the return pipe are respectively arranged on both sides of the return water main pipe.

[0013] More preferably, a first filter is also provided on the water inlet pipe.

[0014] More preferably, a first pressure gauge is installed on the outlet pipe, and a second pressure gauge is installed on the return pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, the design of flushing and backflushing pipelines, combined with a booster circulation pump, flushes and backflushes the heating pipelines at the heat inlet, ensuring a good cleaning effect on the heating pipelines and filters.

[0017] 2. In this utility model, both flushing and backflushing adopt a closed-loop flushing method, which can minimize the impact on water pressure, prevent air accumulation, and avoid affecting the heating effect.

[0018] 3. In this utility model, the design of the sewage pipe and waste pipe enables the collection and discharge of dirt and sewage generated by the circulating flushing, minimizing the increase in sewage treatment pressure and ensuring scientific discharge.

[0019] This utility model features a novel design and simple structure. The integrated design of the equipment compartment facilitates connection and centralized control with heating pipes, making it easy to operate. Furthermore, the flushing and backflushing design significantly improves the cleaning effect and efficiency of the heating pipes. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the appearance structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the equipment compartment structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the pipeline structure in the equipment compartment of this utility model.

[0023] Figure 4 This is a schematic diagram of the flushing pipeline of this utility model.

[0024] Figure 5 This is a schematic diagram of the backwashing pipeline of this utility model.

[0025] In the diagram: 1. Cleaning truck; 11. Door; 2. Equipment compartment; 21. Control panel; 21. Flushing pipe; 3. Inlet pipe; 31. Check valve; 311. First filter; 312. Booster circulation pump; 32. Outlet pipe; 33. First valve; 34. First pressure gauge; 35. Return pipe; 36. Second valve; 361. Second filter; 362. Sewage pipe; 363. Waste pipe; 364. Second pressure gauge; 37. Sewage tank; 4. Sewage outlet; 41. Backwash pipe; 5. Backwash pipe; 51. Third valve; 511. Filter cleaning pipe; 6. Fourth valve; 61. Main inlet pipe; 7. Inlet valve; 71. Y-type filter; 72. Main return pipe; 8. Return valve; 81. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figure 1-5 A unit heat inlet backflushing device includes a cleaning vehicle 1, with multiple doors 11 on the side wall of the cleaning vehicle 1. The cleaning vehicle 1 contains an equipment compartment 2 and a sewage tank 4, with a sewage outlet 41 extending through the sewage tank 4. The design of the cleaning vehicle 1 facilitates the movement of the device to the heat inlet to clean the heating pipes. The sewage tank 4 is used to collect dirt in the pipes, avoiding direct discharge and increasing the pressure on the municipal sewage pipes.

[0028] The equipment compartment 2 is equipped with a flushing pipe 3 and a backwashing pipe 5, both of which are connected to the main water inlet pipe 7 and the main water return pipe 8 of the heat inlet. The main water inlet pipe 7 is equipped with an inlet valve 71 and a Y-type filter 72, and the main water return pipe 8 is equipped with a return valve 81. The flushing pipe 3 and the backwashing pipe 5 are connected to the main water inlet pipe 7 and the main water return pipe 8 of the heat inlet to perform flushing and backwashing.

[0029] The flushing pipeline 3 includes an inlet pipe 31 and an outlet pipe 33 connected to both sides of the inlet valve 71, a booster circulation pump 32 disposed between them, and a return pipe 36 connected to the return main pipe 8. The inlet pipe 31 is equipped with a one-way valve 311, the outlet pipe 33 is equipped with a first valve 34, and the return pipe 36 is equipped with a second valve 361 and a second filter 362. The other end of the return pipe 36 is connected to the inlet end of the booster circulation pump 32. The booster circulation pump 32 drives the water to circulate in the inlet main pipe 7 and the return main pipe 8, thus flushing the heating pipeline. The second filter 362 filters the water returning to the return main pipe 8, ensuring the effectiveness of the flushing process.

[0030] Based on the above technical solution, when using this equipment to flush the heating pipeline, the inlet pipe 31, outlet pipe 33, and return pipe 36 are connected to the main inlet pipe 7 and the main return pipe 8 according to the design. During flushing, first close the inlet valve 71, open the check valve 311, the first valve 34, the return valve 81, and the second valve 361, and then start the booster circulation pump 32 to drive the water flow to flush the heating pipeline. After flushing for a period of time, close the check valve 311, that is, stop water from entering the main inlet pipe 7, and circulate the heating pipeline for flushing. The second filter 362 filters the dirt in the water until the pipeline is flushed.

[0031] In this technical solution, such as Figure 1-5 As shown, a drain pipe 363 is installed on the return pipe 36 before the second filter 362, and the other end of the drain pipe 363 is connected to the sewage tank 4. After the circulation flushing, a lot of dirt accumulates at the second filter 362. At this time, the booster circulation pump 32 is turned off, and the one-way valve 311 and the second valve 361 are opened. Water is introduced from the inlet main pipe 7 to backwash the second filter 362, and the dirt is sent out through the drain pipe 363 and collected through the sewage tank 4, so as to avoid the dirt being directly discharged into the municipal pipeline and increasing the sewage treatment pressure.

[0032] In this technical solution, such as Figure 3-5 As shown, a waste discharge pipe 364 is provided on the return pipe 36 before the second filter 362. During the circulating flushing process, excess wastewater can be discharged through the waste discharge pipe 364, and flushing water can be introduced again from the main water inlet pipe 7 to improve the circulating flushing effect.

[0033] In this technical solution, such as Figure 3-5 As shown, the outlet of the booster circulation pump 32 is connected to a filter cleaning pipe 6, and the other end of the filter cleaning pipe 6 is connected to the backwash valve of the Y-type filter 72. A fourth valve 61 is installed on the filter cleaning pipe 6. The Y-type filter 72 on the main water inlet pipe 7 can be flushed by using the backwash valve connected to the filter blockage plate through the filter cleaning pipe 6, which facilitates filter maintenance and improves the cleaning efficiency of the heating pipeline.

[0034] In this technical solution, such as Figure 3-5 As shown, the backwashing pipeline 5 includes a backwash pipe 51 connected between the outlet of the booster circulation pump 32 and the return water main pipe 8. A third valve 511 is provided on the backwash pipe 51. The backwash pipe 51 and the return pipe 36 are respectively arranged on both sides of the return water main pipe 8.

[0035] When backwashing is required, close the return water valve 81 and the second valve 361, open the inlet valve 71, the check valve 311 and the third valve 511, start the booster circulation pump 32, and the water flows through the inlet pipe 31, the booster circulation pump 32 and the backwash pipe 51 into the return water main pipe 8, and then flows back through the return water main pipe 8 and the inlet pipe 31 to the booster circulation pump 32 for circulation backwashing, backwashing the heating pipeline and ensuring the cleaning effect of the heating pipeline.

[0036] In this technical solution, such as Figure 3-5 As shown, a first filter 312 is also installed on the water inlet pipe 31. The first filter 312 is designed as a pre-filter at the booster circulation pump 32 to pre-filter the water and prevent contaminants from entering the heating pipes. During backwashing, the water returning from the main water inlet pipe 7 is filtered to improve the backwashing effect and facilitate impurity removal.

[0037] In this technical solution, such as Figure 3-5 As shown, a first pressure gauge 35 is installed on the outlet pipe 33, and a second pressure gauge 37 is installed on the return pipe 36. The design of the first pressure gauge 35 and the second pressure gauge 37 allows for monitoring of the fluid pressure at the outlet pipe 33 and the return pipe 36 during backwashing before the backwashing operation. If the pressure difference between the two sides reaches a certain value, it indicates that the filter in the heating pipeline contains a large amount of dirt. Therefore, the backwash drain valve of the filter is opened, and backwashing is initiated to clean the filter in the heating pipeline, improving the cleaning effect of the heating pipeline.

[0038] The valves used in this flushing device are preferably solenoid valves or pneumatic valves. The equipment compartment 2 is equipped with a control module and an operation panel 21, through which each valve is controlled.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A unit heat inlet backwash device, comprising a cleaning vehicle (1), a plurality of vehicle doors (11) are arranged on the side wall of the cleaning vehicle (1), characterized in that, The cleaning vehicle (1) is provided with an equipment bin (2) and a sewage tank (4), and the sewage tank (4) is provided with a sewage outlet (41) penetratingly; The equipment bin (2) is provided with a flushing pipeline (3) and a backwashing pipeline (5), and both are connected with the water inlet main pipe (7) and the water return main pipe (8) of the heat inlet, wherein the water inlet main pipe (7) is provided with a water inlet valve (71) and a Y-shaped filter (72), and the water return main pipe (8) is provided with a water return valve (81); The flushing pipeline (3) comprises a water inlet pipe (31) and a water outlet pipe (33) connected on both sides of the water inlet valve (71), a booster circulating pump (32) arranged between the water inlet pipe (31) and the water outlet pipe (33), and a backflow pipe (36) connected to the water return main pipe (8), wherein the water inlet pipe (31) is provided with a one-way valve (311), the water outlet pipe (33) is provided with a first valve (34), the backflow pipe (36) is provided with a second valve (361) and a second filter (362), and the other end of the backflow pipe (36) is connected to the water inlet end of the booster circulating pump (32).

2. A backwash unit according to claim 1, wherein, The backflow pipe (36) is provided with a sewage pipe (363) before the second filter (362).

3. A backwash unit according to claim 1, wherein, The backflow pipe (36) is provided with a waste pipe (364) before the second filter (362).

4. A backwash unit according to claim 1, wherein, The water outlet end of the booster circulating pump (32) is connected with a filter cleaning pipe (6), the other end of the filter cleaning pipe (6) is connected to the backwashing valve of the Y-shaped filter (72), and the filter cleaning pipe (6) is provided with a fourth valve (61).

5. A backwash unit according to claim 1, wherein, The backwashing pipeline (5) comprises a backwashing pipe (51) connected between the water outlet end of the booster circulating pump (32) and the water return main pipe (8), wherein the backwashing pipe (51) is provided with a third valve (511), and the backwashing pipe (51) and the backflow pipe (36) are arranged on both sides of the water return main pipe (8).

6. A backwash unit according to claim 5, wherein, The water inlet pipe (31) is further provided with a first filter (312).

7. A backwash unit according to claim 5, wherein, The water outlet pipe (33) is provided with a first pressure gauge (35), and the backflow pipe (36) is provided with a second pressure gauge (37).

Images