Integrated prefabricated pump station with cold-resistant and anti-freezing functions

Abstract

The utility model discloses an integrated prefabricated pump station with cold-resistant and anti-freezing functions. The integrated prefabricated pump station comprises a water outlet pipeline, a barrel, a water pump, a grating, a liquid level sensor, a temperature sensor, a spraying assembly and a heat preservation assembly. One end of the water outlet pipeline is connected with the water pump, and the other end penetrates through one side wall of the barrel and extends out of the barrel; the water pump is arranged in the barrel and located at the bottom, and the grating is arranged on the other side wall of the barrel; the liquid level sensor is arranged at the top of the inner wall of the barrel; the temperature sensor is arranged on the water outlet pipeline; the spraying assembly is arranged in the cylinder body, and the heat preservation assembly is arranged outside the cylinder body. And by arranging the spraying system and the heat preservation body, water cannot be frozen, the whole pump station has the cold-resistant and anti-freezing effects, and the pump station can stably work for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of rainwater and sewage treatment, and in particular to an integrated prefabricated pump station with cold-resistant and antifreeze functions. Background Art

[0002] Integrated prefabricated pump stations are widely used in many fields such as rainwater and sewage transportation. They are usually installed underground and outdoors. However, in the areas north of the Yellow River, the temperature is very low in winter. When the pump station is not in operation, the water inside the cylinder is prone to ice, making the pump station unable to operate. Therefore, an integrated prefabricated pump station with cold-resistant function is needed to ensure that when the temperature is low and the pump station is not in operation, there will be no ice inside, so that the water pump will not be damaged and the pump station can be used stably for a long time. Summary of the invention

[0003] Technical problem: The technical problem to be solved by the utility model is to provide an integrated prefabricated pump station with cold-resistant and antifreeze functions, so that the pump station has a heat preservation function. At the same time, when the pump station stops running and the temperature inside the cylinder is lower than 0°C, the water pump generates a smaller flow and lift. The water pump runs under a small load state, and the fluid formed impacts the water at the bottom of the cylinder. The water flow in the cylinder can circulate internally, so that there will be no ice inside the cylinder, and the water pump will not be damaged due to low-temperature ice, thereby ensuring that the pump station can be used for a long time.

[0004] Technical solution: To solve the above technical problems, the technical solution adopted by the embodiment of the utility model is:

[0005] An integrated prefabricated pump station with cold-resistant and antifreeze functions comprises a water outlet pipeline, a cylinder, a water pump, a grille, a liquid level sensor, a temperature sensor, a spray assembly and a thermal insulation assembly; one end of the water outlet pipeline is connected to the water pump, and the other end passes through a side wall of the cylinder and extends to the outside of the cylinder; the water pump is arranged inside the cylinder and at the bottom, and the grille is arranged on the other side wall of the cylinder; the liquid level sensor is arranged on the top of the inner wall of the cylinder; the temperature sensor is arranged on the water outlet pipeline; the spray assembly is arranged inside the cylinder, and the thermal insulation assembly is arranged outside the cylinder.

[0006] As a preferred example, the spray assembly includes a first solenoid valve, a sprinkler, a nozzle and a second solenoid valve; the first solenoid valve is arranged on the water outlet pipe, one end of the nozzle is connected to the water outlet pipe, and the other end is connected to the sprinkler; the second solenoid valve is arranged on the nozzle.

[0007] As a preferred example, the first solenoid valve is located above the connection between the spray pipe and the water outlet pipeline.

[0008] As a preferred example, the thermal insulation assembly includes a first thermal insulation body and a second thermal insulation body; the first thermal insulation body is arranged outside the top surface of the cylinder, and the second thermal insulation body is arranged outside the side wall of the cylinder.

[0009] As a preferred example, the first insulation body includes a first insulation layer and a first fiberglass layer; the first insulation layer is arranged on the top outer surface of the cylinder; the first fiberglass layer is arranged on the upper part of the first insulation layer; the second insulation body includes a second insulation layer and a second fiberglass layer; the second insulation layer is arranged on the outer surface of the side wall of the cylinder, and the second fiberglass layer is arranged on the outside of the second insulation layer.

[0010] As a preferred example, an integrated prefabricated pump station with cold-resistant and antifreeze functions also includes a top cover; an inspection port is provided on the top of the cylinder, and the top cover is arranged at the inspection port on the top of the cylinder, and the top cover is adapted to the inspection port; the top cover includes a lower cover, an insulation layer and an upper cover; the lower cover is adapted to the inspection hole, the insulation layer is arranged above the lower cover, and the upper cover is arranged above the insulation layer.

[0011] As a preferred example, an integrated prefabricated pump station with cold-resistant and antifreeze functions also includes a ventilation pipe; a third solenoid valve is provided on the ventilation pipe; when working, the third solenoid valve is in a normally open state.

[0012] Beneficial effects: Compared with the prior art, the technical solution of the utility model has the following beneficial effects: The technical solution of the utility model is to set a spray system inside the cylinder. When the temperature is low and the water level is low and no drainage is required, the water pump runs at a low load, so that the water in the cylinder is circulated inside the cylinder through the spray system, so that the water body will not freeze, and the water pump will not be damaged by ice. At the same time, an insulation layer is set on the side wall and the top of the cylinder to keep the cylinder warm, further ensuring that the water body will not freeze, and ensuring that the pump station can work stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of an embodiment of the utility model;

[0014] Figure 2 This is a structural diagram of the first heat-insulating body of an embodiment of the utility model;

[0015] Figure 3 This is a structural diagram of a second heat-insulating body in an embodiment of the utility model;

[0016] Figure 4 It is a structural diagram of the hole cover of an embodiment of the utility model.

[0017] The figure includes: water outlet pipeline 1, first solenoid valve 2, cylinder 3, water pump 4, shutdown liquid level line 5, start liquid level line 6, sprinkler 7, grille 8, nozzle 9, second solenoid valve 10, liquid level sensor 11, hole cover 12, temperature sensor 13, first insulation body 14, second insulation body 15, lower cover 121, upper cover 122, insulation layer 123, first fiberglass layer 141, first insulation layer 142, second fiberglass layer 151, second insulation layer 152. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings.

[0019] like Figure 1 As shown, an integrated prefabricated pump station with cold-resistant and antifreeze functions according to an embodiment of the utility model is characterized in that it includes a water outlet pipeline 1, a cylinder 3, a water pump 4, a grille 8, a liquid level sensor 11, a temperature sensor 13, a spray assembly and a thermal insulation assembly; one end of the water outlet pipeline 1 is connected to the water pump 4, and the other end passes through a side wall of the cylinder 3 and extends to the outside of the cylinder 3; the water pump 4 is arranged inside the cylinder 3 and is located at the bottom, and the grille 8 is arranged on the other side wall of the cylinder 3; the liquid level sensor 11 is arranged on the top of the inner wall of the cylinder 3; the temperature sensor 13 is arranged on the water outlet pipeline 1; the spray assembly is arranged inside the cylinder 3, and the thermal insulation assembly is arranged outside the cylinder 3.

[0020] In the above-mentioned structure, an integrated prefabricated pump station with cold-resistant and antifreeze function is provided with a spray assembly inside the cylinder 3. When the water level inside the cylinder 3 is between the shutdown liquid level line 5 and the start liquid level line 6, the water pump 4 stops running at normal temperature. However, when the temperature inside the cylinder 3 is lower than 0°C, the water pump 4 is started, and the spray assembly is turned on, so that the water circulates inside the inner cylinder 3. The water pump 4 generates a smaller flow rate and head, and the water inside the cylinder 3 can flow continuously and will not be in a static state, so that the water inside the cylinder 3 will not be frozen, so that the whole pump station has an antifreeze effect. At the same time, a top cover 12, a first insulation body 14 and a second insulation body 15 are provided to insulate the part of the cylinder 3 exposed to the outside or in the frozen soil layer, so that the whole pump station has antifreeze and heat preservation effects, and will not cause the water body to be frozen in a low temperature environment, thereby damaging the water pump 4. It is ensured that the whole pump station can work stably.

[0021] When the temperature sensor 13 detects that the temperature is greater than 0°C and the water level in the cylinder 3 reaches the start liquid level line 6, the water pump 4 is turned on by the control system, and the water in the cylinder 3 flows out through the water outlet pipe 1. The liquid level sensor 11 is above the highest liquid level. When the liquid level sensor 11 detects that the water level in the cylinder 3 drops to the shutdown liquid level line 5 and the temperature sensor 13 detects that the temperature is greater than 0°C, the water pump stops running. At this time, since the temperature is greater than 0°C, the water in the cylinder 3 will not freeze.

[0022] When the water level in the cylinder 3 drops to the shutdown liquid level line 5, and the temperature sensor 13 detects that the temperature is lower than 0°C or reaches the antifreeze temperature, the control system instructs the water pump 4 to run, and the water pump 4 generates a smaller flow and lift. At the same time, the control system instructs the first solenoid valve 2 to switch from normally open to closed state, the second solenoid valve 10 to switch from normally closed to open state, and the solenoid valve on the ventilation pipe to switch from normally open to closed state. At this time, the water pump 4 allows the water to flow from the lower part of the water outlet pipeline 1 through the nozzle 9 to the sprinkler 7, and finally sprayed downward by the sprinkler 7. Thereby forming an internal circulation of the water in the cylinder 3, ensuring that the water is always in a moving state and will not freeze. When the water level in the cylinder 3 is lower than the start liquid level line 6 and the temperature is lower than 0°C or the antifreeze temperature, the water in the cylinder 3 continues to circulate internally. At the same time, the solenoid valve on the ventilation pipe cuts off the cold air outside the cylinder from entering the cylinder to improve the insulation effect.

[0023] When the temperature of the cylinder 3 reaches above 0° C. or higher than the antifreeze temperature, and the water level does not reach the start liquid level line 6 , the water pump 4 stops running.

[0024] When the water level in the cylinder 3 reaches the start liquid level line 6, at this time, no matter how high the temperature inside the cylinder is, the first solenoid valve 2 returns to the normally open state, the second solenoid valve 10 returns to the normally closed state, and the solenoid valve on the ventilation pipe returns to the normally open state. At this time, the water pump 4 transports the water in the cylinder 3 to the water outlet pipeline 1, and then the water flows out from the water outlet pipeline 1.

[0025] Only when the temperature is lower than 0°C or reaches the antifreeze temperature, and the water level in the cylinder 3 is lower than the start liquid level line 6, the water in the cylinder 3 performs internal circulation to ensure that the water will not freeze.

[0026] As a preferred example, the spray assembly includes a first solenoid valve 2, a sprinkler 7, a nozzle 9 and a second solenoid valve 10; the first solenoid valve 2 is arranged on the water outlet pipeline 1, one end of the nozzle 9 is connected to the water outlet pipeline 1, and the other end is connected to the sprinkler 7; the second solenoid valve 10 is arranged on the nozzle 9. When the water in the cylinder 3 needs to be internally circulated, the first solenoid valve 2 is closed and the second solenoid valve 10 is opened, so that the water passes through the lower part of the water outlet pipeline 1, flows through the nozzle 9, and finally reaches the sprinkler 7, and the sprinkler 7 sprays the water downward, so that the water can circulate and flow without freezing.

[0027] As a preferred example, the first solenoid valve 2 is located above the connection between the nozzle 9 and the water outlet pipeline 1. The first solenoid valve 2 is located above the connection between the nozzle 9 and the water outlet pipeline 1 to ensure that the water can flow through the nozzle 9 after passing through the lower part of the water outlet pipeline 1 without flowing out, so that the water level inside the cylinder 3 is always kept above the shutdown liquid level line 5, and the water pump 4 will not be damaged. At the same time, the water can circulate in the body without freezing.

[0028] As a preferred example, the heat-insulating assembly includes a first heat-insulating body 14 and a second heat-insulating body 15; the first heat-insulating body 14 is arranged outside the top surface of the cylinder 3, and the second heat-insulating body 15 is arranged outside the side wall of the cylinder 3. The first heat-insulating body 14 and the second heat-insulating body 15 insulate the top and side walls of the cylinder 3 exposed to the outside or in the frozen soil layer, so that the temperature inside the cylinder 3 is not easily lost, and the water inside the cylinder 3 is further insulated.

[0029] As a preferred example, the first insulation body 14 includes a first insulation layer 142 and a first glass fiber reinforced plastic layer 141; the first insulation layer 142 is arranged on the top outer surface of the cylinder 3; the first glass fiber reinforced plastic layer 141 is arranged on the upper part of the first insulation layer 142; the second insulation body 15 includes a second insulation layer 152 and a second glass fiber reinforced plastic layer 151; the second insulation layer 152 is arranged on the outer surface of the side wall of the cylinder 3, and the second glass fiber reinforced plastic layer 151 is arranged outside the second insulation layer 152. The thickness of the first insulation layer and the second insulation layer is determined according to the local minimum temperature, and the height of the second insulation body is determined according to the local minimum temperature or the thickness of the frozen soil layer. The top and side walls of the cylinder 3 are insulated by arranging the first insulation layer 142 and the second insulation layer 152, and the first glass fiber reinforced plastic layer 141 and the second glass fiber reinforced plastic layer 151 are arranged on the outer layer, so that the insulation effect is better. The first FRP layer 141 and the second FRP layer 151 are formed by winding alkali-free glass fibers, and their ends are smoothly transitioned to the original cylinder, making them a whole and the insulation layer is not exposed, so as to be in a good insulation state to ensure the reliable use of the pump station.

[0030] As a preferred example, an integrated prefabricated pump station with cold-resistant and antifreeze functions further includes a top cover 12; an inspection port is provided at the top of the cylinder 3, and the top cover 12 is arranged at the inspection port at the top of the cylinder 3, and the top cover 12 is adapted to the inspection port; the top cover 12 includes a lower cover 121, an insulation layer 123 and an upper cover 122; the lower cover 121 is adapted to the inspection port, the insulation layer 123 is arranged above the lower cover 121, and the upper cover 122 is arranged above the insulation layer 123. By arranging the top cover 12 at the inspection port at the top of the cylinder 3, the cylinder can be in a sealed state during operation, and the top cover 12 also has a heat-insulating effect, further strengthening the heat-insulating effect on the inside of the cylinder 3.

[0031] As a preferred example, an integrated prefabricated pump station with cold-resistant and antifreeze functions also includes a ventilation pipe; a third solenoid valve is provided on the ventilation pipe; when working, the third solenoid valve is in a normally open state. The third solenoid valve is used to connect and close the inside of the cylinder 3 with the outside air; when the water in the cylinder 3 is discharged normally, the third solenoid valve is normally open, and when the water in the cylinder 3 circulates internally, the third solenoid valve is closed.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above specific embodiments. The above specific embodiments and the description in the specification are only for further illustrating the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the claims and their equivalents.

Claims

1. An integrated prefabricated pump station with cold-resistant and antifreeze functions, characterized in that: The invention comprises a water outlet pipeline (1), a cylinder (3), a water pump (4), a grille (8), a liquid level sensor (11), a temperature sensor (13), a spray assembly and a heat preservation assembly; one end of the water outlet pipeline (1) is connected to the water pump (4), and the other end passes through a side wall of the cylinder (3) and extends to the outside of the cylinder (3); the water pump (4) is arranged inside the cylinder (3) and at the bottom, and the grille (8) is arranged on the other side wall of the cylinder (3); the liquid level sensor (11) is arranged on the top of the inner wall of the cylinder (3); the temperature sensor (13) is arranged on the water outlet pipeline (1); the spray assembly is arranged inside the cylinder (3), and the heat preservation assembly is arranged outside the cylinder (3).

2. The integrated prefabricated pump station according to claim 1, characterized in that: The spray assembly comprises a first solenoid valve (2), a sprayer (7), a spray pipe (9) and a second solenoid valve (10); the first solenoid valve (2) is arranged on a water outlet pipeline (1); one end of the spray pipe (9) is connected to the water outlet pipeline (1) and the other end is connected to the sprayer (7); the second solenoid valve (10) is arranged on the spray pipe (9).

3. The integrated prefabricated pump station according to claim 2, characterized in that: The first solenoid valve (2) is located above the connection between the spray pipe (9) and the water outlet pipeline (1).

4. The integrated prefabricated pump station according to claim 1, characterized in that: The heat-insulating assembly comprises a first heat-insulating body (14) and a second heat-insulating body (15); the first heat-insulating body (14) is arranged outside the top surface of the cylinder (3), and the second heat-insulating body (15) is arranged outside the side wall of the cylinder (3).

5. The integrated prefabricated pump station according to claim 4, characterized in that: The first thermal insulation body (14) comprises a first thermal insulation layer (142) and a first fiberglass reinforced plastic layer (141); the first thermal insulation layer (142) is arranged on the top outer surface of the cylinder (3); the first fiberglass reinforced plastic layer (141) is arranged on the upper part of the first thermal insulation layer (142); the second thermal insulation body (15) comprises a second thermal insulation layer (152) and a second fiberglass reinforced plastic layer (151); the second thermal insulation layer (152) is arranged on the outer surface of the side wall of the cylinder (3), and the second fiberglass reinforced plastic layer (151) is arranged on the outer side of the second thermal insulation layer (152).

6. The integrated prefabricated pump station according to claim 4, characterized in that: The invention also comprises a top cover (12); an inspection opening is provided at the top of the cylinder (3); the top cover (12) is arranged at the inspection opening at the top of the cylinder (3), and the top cover (12) is adapted to the inspection opening; the top cover (12) comprises a lower cover (121), a heat-insulating layer (123) and an upper cover (122); the lower cover (121) is adapted to the inspection opening, the heat-insulating layer (123) is arranged above the lower cover (121), and the upper cover (122) is arranged above the heat-insulating layer (123).

7. The integrated prefabricated pump station according to claim 1, characterized in that: It also includes a ventilation pipe; a third solenoid valve is arranged on the ventilation pipe; when working, the third solenoid valve is in a normally open state.

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