Horizontal flow sedimentation tank anti-icing system suitable for northern area

Abstract

The utility model discloses a horizontal flow sedimentation tank anti-icing system suitable for northern areas, which is mounted on a suction dredger and comprises a submersible pump, a water pump fixing frame, a water outlet vertical pipe, a water outlet transverse pipe, a water distribution transverse pipe and a pipeline hanging bracket, and the water pump fixing frame and the water outlet transverse pipe are fixed on the lower surface of the suction dredger. The water distribution transverse pipe is fixed to one side of the lower surface of the suction dredger through a pipeline hanging bracket, the submersible pump is installed at the bottom of the water pump fixing frame, the water outlet vertical pipe is arranged on the submersible pump, one end of the water outlet transverse pipe is communicated with the water outlet vertical pipe, and the other end of the water outlet transverse pipe is bent downwards and communicated with the water distribution transverse pipe. Water distribution holes are formed in the bottom of the water distribution transverse pipe at equal intervals.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of town tap water treatment, more particularly to a flat flow sedimentation tank anti-icing system suitable for northern regions. BACKGROUND

[0002] Flat flow sedimentation tank is one of the treatment structures widely used in tap water treatment plants, and has good treatment effect on the solid-liquid separation of a large number of alum flowers after coagulation and sedimentation or the sedimentation and separation of suspended solids in sewage and waste water. The separation effect of the flat flow sedimentation tank is closely related to the thickness of the sludge layer in the tank, so the normal operation of the traveling suction dredger is crucial to maintaining the thickness of the sludge layer. Due to the strict limitation of the running speed of the mud scraper, in the cold northern regions, there is a risk of icing on the surface of the sedimentation tank, and the thickening of the ice layer will affect the normal operation of the suction dredger, and may also cause the cracking and peeling of the mortar in the tank body after icing. To cope with the icing risk on the surface of the flat flow sedimentation tank in the northern region, to develop a suction dredger anti-icing system has become the key to solving the above problems. SUMMARY

[0003] The utility model discloses a flat flow sedimentation tank anti-icing system suitable for northern regions, which is installed on the suction dredger, and comprises a submersible pump, a water pump fixing frame, a water outlet vertical pipe, a water outlet horizontal pipe, a water distribution horizontal pipe and a pipeline hanger.

[0004] The utility model discloses a flat flow sedimentation tank anti-icing system suitable for northern regions, which is installed on the suction dredger, and comprises a submersible pump, a water pump fixing frame, a water outlet vertical pipe, a water outlet horizontal pipe, a water distribution horizontal pipe and a pipeline hanger.

[0005] The utility model discloses a flat flow sedimentation tank anti-icing system suitable for northern regions, which is installed on the suction dredger, and comprises a submersible pump, a water pump fixing frame, a water outlet vertical pipe, a water outlet horizontal pipe, a water distribution horizontal pipe and a pipeline hanger.

[0006] Further, the pipe diameters of the water outlet vertical pipe, the water outlet horizontal pipe and the water distribution horizontal pipe are all DN50.

[0007] Further, the water distribution horizontal pipe is arranged along the length direction of the suction dredger, and is 20cm away from the water surface.

[0008] Further, two water distribution holes are symmetrically arranged at every 30cm at the bottom of the water distribution horizontal pipe, and the center line of each water distribution hole and the central axis under the cross-section visual angle of the water distribution horizontal pipe form an angle of 45°.

[0009] Further, the water distribution hole has a diameter of 7mm.

[0010] Further, when the suction dredger has a span of less than 5m, a set of horizontal flow sedimentation tank anti-icing system is installed, and when the suction dredger has a span of more than 5m, at least two sets of horizontal flow sedimentation tank anti-icing system are installed.

[0011] Further, the submersible pump has a lift of 10m, so that the water distribution hole sprays a liquid flow speed of more than 2m / s.

[0012] Further, the suction dredger is also provided with a temperature sensor for real-time monitoring of the water surface temperature, and dynamically adjusting the operating frequency or jet flow speed of the submersible pump according to the temperature change, thereby improving the energy efficiency of the anti-icing system.

[0013] Further, the water distribution horizontal pipe is also integrated with a heating device in the pipeline, so as to enhance the anti-icing effect by spraying heated water, and cope with extremely cold environments.

[0014] Compared with the prior art, the technical scheme of the utility model has the beneficial effects that:

[0015] 1. Effectively prevent icing: through the combined action of the submersible pump and the water distribution system, the liquid within a range of 10cm below the water surface is agitated, the static state of the water surface is broken, and the formation of ice layer is inhibited; at the same time, the heating device integrated in the water distribution horizontal pipe further enhances the anti-icing capacity by spraying heated water, and is particularly suitable for extremely cold environments.

[0016] 2. Intelligent adjustment to improve efficiency: the water surface temperature is monitored in real time by installing a temperature sensor, and the operating frequency and jet flow speed of the submersible pump are dynamically adjusted according to the temperature change, so as to reduce unnecessary energy consumption while ensuring the anti-icing effect, and significantly improve the energy efficiency ratio of the system.

[0017] 3. Ensure the stability of the equipment operation: prevent the formation of ice layer, effectively avoid the interference of ice layer to the operation of the suction dredger, ensure that the suction dredger can work continuously and stably, maintain the thickness of the mud layer in the sedimentation tank, and keep the high separation performance of the horizontal flow sedimentation tank.

[0018] 4. Protect the pool structure: the anti-icing function of the system avoids the extrusion and damage of the ice layer to the pool wall and pool bottom, prevents the pool body mortar from cracking or peeling due to frost heaving, prolongs the service life of the pool structure, and reduces the maintenance cost.

[0019] 5. Compact structure, flexible installation: the system has a compact design and can be directly installed on the suction dredger; the number and arrangement of the anti-icing system can be flexibly adjusted according to the span of the suction dredger, so as to adapt to the needs of sedimentation tanks of different scales, and facilitate popularization and use.

[0020] 6. Energy saving and environmental protection: The refined design of the water distribution holes (7mm diameter, 45° spray angle) ensures uniform liquid distribution and efficient use of submersible pump power; the dynamic adjustment of the spray speed and flow rate effectively reduces energy consumption and reduces the operating burden in cold climates.

[0021] 7. Strong applicability: This system is designed specifically for cold northern regions and can be widely applied to various types of horizontal flow sedimentation tanks, meeting the special needs of urban tap water treatment and improving the stability and adaptability of water treatment facilities. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the anti-icing system for the horizontal flow sedimentation tank of this utility model.

[0023] Figure 2 This is a front view structural diagram of the anti-icing system for the horizontal flow sedimentation tank of this utility model.

[0024] Figure 3 This is a side view of the anti-icing system for the horizontal flow sedimentation tank of this utility model.

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the horizontal water distribution pipe in the anti-icing system of the horizontal flow sedimentation tank of this utility model.

[0026] Attached reference numerals: 1-Water pump, 2-Water pump mounting bracket, 3-Outlet riser, 4-Outlet horizontal pipe, 5-Distribution horizontal pipe, 6-Pipe hanger, 7-Distribution hole. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0028] like Figures 1 to 4 As shown in the figure, the anti-icing system for horizontal flow sedimentation tanks in northern regions provided in this embodiment is installed on a sludge suction machine and includes a submersible pump 1, a pump mounting bracket 2, an outlet riser 3, an outlet horizontal pipe 4, a distribution horizontal pipe 5, and a pipe hanger 6. The pump mounting bracket 2 and the outlet horizontal pipe 4 are fixed to the lower surface of the sludge suction machine, and the distribution horizontal pipe 5 is fixed to one side of the lower surface of the sludge suction machine through the pipe hanger 6. The submersible pump 1 is installed at the bottom of the pump mounting bracket 2 and needs to be inserted 1m below the liquid surface of the sedimentation tank. The submersible pump 1 is equipped with an outlet riser 3. One end of the outlet horizontal pipe 4 is connected to the outlet riser 3, and the other end of the outlet horizontal pipe 4 is bent downward and connected to the distribution horizontal pipe 5. The bottom of the distribution horizontal pipe 5 is provided with distribution holes at equal intervals.

[0029] Specifically, the pipe diameter of the water outlet vertical pipe 3, the water outlet horizontal pipe 4 and the water distribution horizontal pipe 5 is DN50. The water distribution horizontal pipe 5 is arranged along the length direction of the suction dredger and is 20 cm away from the water surface. Two water distribution holes 7 are symmetrically arranged at the bottom of the water distribution horizontal pipe 5 every 30 cm, as shown in Figure 4 The angle between the center line of each water distribution hole 7 and the central axis of the water distribution horizontal pipe under the visual angle of the cross section is 45°. The hole diameter of the water distribution hole 7 is 7 mm.

[0030] Specifically, when the span of the suction dredger is less than 5 m, one set of the horizontal flow sedimentation tank anti-icing system of the embodiment is installed, and when the span of the suction dredger is greater than 5 m, at least two sets of the horizontal flow sedimentation tank anti-icing system of the embodiment are installed. The lift of the submersible pump is 10 m, and the flow of the submersible pump is calculated so that the jet flow velocity of the water distribution hole is greater than 2 m / s.

[0031] Preferably, a temperature sensor is also installed on the suction dredger for real-time monitoring of the water surface temperature, and the operating frequency or jet flow rate of the submersible pump is dynamically adjusted according to the temperature change to improve the energy efficiency of the anti-icing system.

[0032] Preferably, a heating device is also integrated in the pipeline of the water distribution horizontal pipe to enhance the anti-icing effect by spraying heated water and cope with extremely cold environments. And on the basis of the existing water distribution horizontal pipe, an additional layer of water distribution pipe can be added to agitate deeper water bodies and improve the overall anti-icing capacity.

[0033] Preferably, a filter screen or automatic cleaning device is installed on the submersible pump and the water distribution hole to prevent blockage caused by impurities.

[0034] Preferably, the water distribution hole in the embodiment can also be designed as a water distribution hole with adjustable jet angle or flow rate to achieve personalized water distribution for different pool environments, improve turbulence efficiency and save pump energy consumption.

[0035] Preferably, in cold and sunny areas, solar panels can also be installed to provide additional power supply for the system, reducing operating costs.

[0036] Preferably, composite materials (such as modified plastics or special stainless steel) resistant to low temperature and corrosion are selected to make the pipeline components (water outlet vertical pipe, water outlet horizontal pipe, water distribution horizontal pipe) and various supports, improving the durability of the system.

[0037] Preferably, a coagulant automatic dosing module is integrated in the water distribution horizontal pipe to promote coagulation effect while agitating water flow, improving overall water treatment efficiency.

[0038] Specifically, for the actual application of the above horizontal sedimentation tank anti-icing system in a certain waterworks project, the application scenario is the reconstruction of the horizontal sedimentation tank suction dredger system. Since the project is located in a cold northern region, there is ice formation on the pool surface at night when the temperature drops, affecting the normal operation of the sedimentation tank. The existing sedimentation tank has a single cell width of 5m, so a set of anti-icing system is set up, a water pump (flow Q = 10m 3 / h, pump head 10m, pump installed 1m below the water surface) is installed under the existing suction dredger, and a water outlet vertical pipe, a water outlet horizontal pipe and a water distribution horizontal pipe (length 4.8m) are installed synchronously. The pipe diameters of the above-mentioned pipes are all DN50, the installation height of the water distribution horizontal pipe is 20cm above the pool surface liquid level, the water distribution hole spacing is 20cm, and the water distribution hole size is 7mm. At this time, the liquid flow velocity sprayed by the water distribution hole exceeds 2.5m / s. Through the above design, the anti-icing system does not cause ice formation on the surface of the sedimentation tank in the continuous cold season after being turned on. According to the environmental temperature, the system can also be set to intermittent operation, and the expected anti-icing effect is also achieved.

[0039] In this embodiment, the submersible pump and each pipe assembly (water outlet vertical pipe, water outlet horizontal pipe, water distribution horizontal pipe) are designed as independent modules, which can be quickly disassembled and replaced, and meet the needs of different pool structures. PLC (programmable logic controller) is introduced, combined with water temperature and flow rate sensors, to realize full automatic adjustment and reduce manual intervention.

[0040] The utility model is not limited to the above-described embodiments. The above description of the specific embodiments is intended to describe and illustrate the technical solutions of the utility model, and the above specific embodiments are only illustrative and not limiting. Without departing from the purpose of the utility model and the scope of the claims, those skilled in the art can make many forms of specific changes under the inspiration of the utility model, which are all within the protection scope of the utility model.

Claims

1. A de-icing system for a quiescent sedimentation basin suitable for use in northern climates, installed on a suction dredge, characterized in that, The utility model relates to a kind of suction dredger, including submersible pump (1), water pump fixing frame (2), water outlet vertical pipe (3), water outlet horizontal pipe (4), water distribution horizontal pipe (5) and pipeline hanger (6), the lower surface of suction dredger is fixed with the water pump fixing frame (2) and water outlet horizontal pipe (4), the lower surface of suction dredger is fixed with the water distribution horizontal pipe (5) by pipeline hanger (6) in one side, submersible pump (1) is installed in water pump fixing frame (2) bottom, submersible pump (1) is provided with the water outlet vertical pipe (3), one end of the water outlet horizontal pipe (4) is connected with water outlet vertical pipe (3), the other end of water outlet horizontal pipe (4) is downwardly bent and is connected with the water distribution horizontal pipe (5), and water distribution horizontal pipe (5) bottom is equipped with water distribution hole at equal intervals.

2. The anti-icing system for a quiescent sedimentation basin suitable for use in northern regions according to claim 1, characterized in that, The pipe diameter of the water outlet vertical pipe (3), the water outlet horizontal pipe (4) and the water distribution horizontal pipe (5) is DN50.

3. The anti-icing system for a quiescent sedimentation basin suitable for use in northern regions according to claim 1, characterized in that, The water distribution horizontal pipe (5) is arranged along the length direction of the suction dredger, and the distance from the water surface is 20 cm.

4. The anti-icing system for a quiescent sedimentation basin suitable for use in northern climates of claim 1, wherein, Two water distribution holes are symmetrically arranged at every 30 cm at the bottom of the water distribution horizontal pipe (5), and the angle between the center line of each water distribution hole and the central axis of the water distribution horizontal pipe under the visual angle of the cross section is 45°.

5. The anti-icing system for a quiescent sedimentation basin suitable for use in northern regions according to claim 1 or 4, characterized in that, The hole diameter of the water distribution hole is 7 mm.

6. The anti-icing system for a quiescent sedimentation basin suitable for use in northern climates of claim 1, wherein, When the span of the suction dredger is less than 5 m, one set of anti-icing system is installed, and when the span of the suction dredger is greater than 5 m, at least two sets of anti-icing system are installed.

7. The anti-icing system for a quiescent sedimentation basin suitable for use in northern climates of claim 1, wherein, The lift of the submersible pump (1) is 10 m, so that the liquid flow speed sprayed by the water distribution hole is more than 2 m / s.

8. The anti-icing system for a quiescent sedimentation basin suitable for use in northern climates of claim 1, wherein, A temperature sensor is further installed on the suction dredger to monitor the water surface temperature in real time, and the operating frequency or the jet flow speed of the submersible pump is dynamically adjusted according to the temperature change to improve the energy efficiency of the anti-icing system.

9. The anti-icing system for a quiescent sedimentation basin suitable for use in northern climates of claim 1, wherein, A heating device is further integrated in the pipeline of the water distribution horizontal pipe (5) to enhance the anti-icing effect by spraying heated water to cope with extreme cold environment.

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