CN111810455A - A water supply device for vertical shaft tubular pumping station with spray water evaporation and heat dissipation technology - Google Patents

Abstract

The invention discloses a water supply device with spray water evaporation heat dissipation technology for a vertical shaft through-flow pump station. The air flow direction in the air inlet pipe is from the air inlet pipe to the air outlet pipe; the bottom of the cooling chamber is provided with a circulating water pool, and the tap water pipe is connected with The water inlet of the circulating water pool is fixedly connected, the floating ball liquid level signal controller is arranged in the circulating water pool, the drainage pipe is fixedly connected with the water outlet of the circulating water pool, the circulating water pipe is fixedly connected with the water outlet of the circulating water pool, and the water outlet of the circulating water pipe is provided with a nozzle; A finned tube heat exchanger is arranged on the bracket, and the nozzles are arranged above the surrounding water baffles; the heat flow inlet of the finned tube heat exchanger is connected with the heat flow inlet main pipe, and the cold flow outlet of the finned tube heat exchanger Connect to the cold effluent water main. The invention provides cooling water and lubricating water for the unit in the vertical shaft through-flow pumping station, reduces the influence of weather on the quality and temperature of the cooling water and lubricating water, and greatly improves the reliability of technical water supply of the vertical shaft through-flow pumping station.

Description

A water supply device for vertical shaft tubular pumping station with spray water evaporation and heat dissipation technology

technical field

The invention relates to a water supply device with spray water evaporation and heat dissipation technology for a vertical shaft tubular pump station, and belongs to the technical field of hydropower engineering equipment.

Background technique

In the hydropower engineering undertaking, the construction of high-lift pumping stations has tended to be saturated, and there is still a lot of room for the utilization of hydropower energy with low head and ultra-low head. , Low water head, suitable for low head pumping station. At present, the vertical shaft pumping station adopts the horizontal axis arrangement, which is beneficial to the layout of the civil structure, and the flow channel is straight, the overflow is large, and the hydraulic performance is good. The efficiency in the ultra-low head pumping station is higher than that of other types of pumping stations. , In addition, the motor and some speed change devices of the shaft pumping station are located in the shaft, and the lighting and ventilation are better, so they can be widely used.

With the wide application of the tubular pumping station, the rationality of the configuration of its technical water supply system is particularly important. The technical water supply system provides cooling water and lubricating water for the unit equipment of the tubular pumping station. Water quality and water temperature have certain requirements. The choice of water source and the rational configuration of the technical water supply system will affect the quality of cooling water and lubricating water. At present, there are many research results on the vertical shaft tubular pumping station unit and pump device, but there are few research results on the auxiliary equipment of the pumping station. The technical information is lacking or most of the content is outdated. There are still many technical problems to be solved urgently in the technical water supply of the shaft tubular pumping station, such as the water temperature of the cooling water is greatly affected by the external weather conditions, and the water quality provided by the water supply system is not reliable. .

SUMMARY OF THE INVENTION

Purpose: In order to overcome the problem that the water supply system in the prior art cannot provide reliable cooling water and lubricating water for the shaft pump station, the present invention provides a water supply device for the vertical shaft through-flow pump station with spray water evaporation and heat dissipation technology. The nozzle provides spray water to spray on the finned tube heat exchanger to form a water film, the air flows from the air inlet pipe into the finned tube heat exchanger and the packing with water blocking function and then flows out through the air outlet pipe to realize the heat flow. The heat flow through the finned tube heat exchanger in the inlet header is exchanged with the heat and mass of the air and spray water. The unevaporated spray water and the water in the filler flow into the circulating water pool naturally through the action of gravity, and then the circulating water pipe realizes the recycling of the spray water. At this time, the temperature of the cooling water is less affected by the weather, which effectively improves the reliability of the technical water supply system.

Technical scheme: in order to solve the above-mentioned technical problems, the technical scheme adopted in the present invention is:

A water supply device with spray water evaporation heat dissipation technology for a vertical shaft tubular pump station, comprising: an air inlet pipe, a cooling chamber, an air outlet pipe, a heat flow inlet water main pipe, and a cold outflow water main pipe, one end of the air inlet pipe extending into the cooling chamber , extends to one side of the bracket, the air inlet pipe is provided with a fan, the other side of the bracket is provided with filler, the leeward side of the filler is provided with an air outlet pipe, the other end of the air outlet pipe extends out of the cooling chamber, and the air flow direction in the air inlet pipe is from the inlet The air duct to the air outlet pipe; the bottom of the cooling chamber is provided with a circulating water pool, the tap water pipeline is fixedly connected with the water inlet of the circulating water pool, the tap water pipeline is provided with a gate valve, the circulating water pool is provided with a floating ball liquid level signal controller, and the drainage pipeline is connected with The water outlet of the circulating water pool is fixedly connected, the circulating water pipe is fixedly connected to the water outlet of the circulating water pool, the circulating water pipe is provided with a suction pump, an automatic water filter and a gate valve, and the water outlet of the circulating water pipe is provided with a nozzle; The heat exchanger, the fin-tube heat exchanger is provided with water baffles all around, and the nozzles are arranged above the surrounding water baffles; The cold outflow outlet of the tube heat exchanger is connected to the cold outflow water main.

As a preferred solution, the tap water pipeline is provided with two gate valves, one manual gate valve and one automatic gate valve.

As a preferred solution, cooling fins are provided on the outside of the finned tubes in the finned tube heat exchanger.

As a preferred solution, there are multiple nozzles at the water outlet of the circulating water pipe.

As a preferred solution, an air purifier is installed at the inlet of the air inlet pipe.

As a preferred solution, a water temperature control box is provided at the water outlet of the circulating water pool.

As a preferred solution, the heat sink is made of copper.

As a preferred solution, an air conditioner is provided in the vertical shaft through-flow pump station.

Beneficial effects: The water supply device provided by the present invention provides the cooling water and lubricating water for the units in the vertical shaft tubular pumping station, and reduces the impact on the cooling water and lubricating water due to weather. The influence of quality and temperature greatly improves the reliability of the technical water supply of the shaft tubular pumping station.

Description of drawings

FIG. 1 is a front view of the overall structure of the present invention, and the directions indicated by the arrows in the figure are the air flow direction and the water flow direction respectively.

Fig. 2 is a schematic axonometric view of the arrangement structure of the water baffle plate and the fin-tube heat exchanger in the bracket of the present invention.

Fig. 3 is a schematic axonometric view of the structure of the fin-tube heat exchanger in one direction in the present invention.

Fig. 4 is a schematic axonometric view of the structure of the fin-tube heat exchanger of the present invention in another direction.

FIG. 5 is a schematic diagram of the spraying range of spray water in the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

It should be noted that, in the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer" and the like indicate the orientation or position The relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention rather than requiring the present invention to be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. The terms "front", "rear", "left", "right", "upper" and "lower" used in the description of the present invention refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to is the direction toward or away from the geometric center of a particular part.

Referring to Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, a water supply device with spray water evaporation heat dissipation technology for a vertical shaft tubular pump station, including an air inlet pipe 3, a cooling chamber 4, an air outlet pipe 10, and a heat flow inlet water The main pipe 12 and the cold outflow water main pipe 11; the air inlet pipe 3 is fixedly connected to the left side of the cooling chamber 4 and extends to the left side of the bracket 15. The air inlet pipe 3 is provided with a fan 2, and the air flow direction in the air inlet pipe 3 is from The air inlet pipe 3 to the air outlet pipe 10; the bottom of the cooling chamber 4 is provided with a circulating water pool 19, the tap water pipe 13 is fixedly connected with the water inlet on the left side of the circulating water pool 19, the tap water pipe 13 is provided with two gate valves 14, and the circulating water pool 19 There is a floating ball liquid level signal controller 16 inside, the drainage pipe 18 is fixedly connected with the drainage outlet at the bottom of the circulating water pool 19, the circulating water pipe 21 is fixedly connected with the water outlet on the right side of the circulating water pool 19, and the circulating water pipe 21 is provided with a suction pump 20, automatic The water filter 9, the gate valve 7, the water outlet of the circulating water pipe 21 is provided with a nozzle 6, which is located directly above the fin-tube heat exchanger 17, and the water blocking plate 5 is arranged in a rectangular shape around the nozzle 6. The outer side of the finned tube 17b is provided with radiating fins 17a, the water blocking plate 5 and the finned tube heat exchanger 17 are fixed by the bracket 15, and the leeward side of the finned tube heat exchanger 17 is provided with a filler 8 with a water blocking function; The air duct 10 is fixedly connected to the right side of the cooling chamber 4 and extends to the leeward side of the filler 8; the heat flow inlet pipe 12 is fixedly connected to the heat flow inlet 17c of the finned-tube heat exchanger 17; the cold outflow water header 11 is connected to the fins The cold flow outlet 17d of the tube heat exchanger 17 is fixedly connected.

Among them, the nozzle 6, the water baffle 5, the finned tube heat exchanger 17, and the filler 8 are located above the circulating water pool 19, and all the unevaporated spray water naturally flows into the circulating water pool 19 by gravity. The specific installation position of the circulating water pool 19 And the size is determined according to the actual situation; the floating ball liquid level signal controller 16, the set liquid level height is lower than the water inlet of the circulating pool 19, the floating ball liquid level signal controller 16 controls the water supply of tap water, and the liquid in the circulating pool 19 When the height of the water level reaches the maximum height of the set water level, the water supply will be stopped; the water volume of the spray water will be determined according to the actual situation.

As a preferred solution, the number of nozzles 6 can be increased, the nozzles 6 should discharge water evenly, and the amount of spray water should not be too high.

As a preferred solution, the water outlet of the circulating water pool 19 is fixedly connected to the water temperature temperature control box, and the water temperature is determined according to the actual situation, so as to improve the cooling effect of the device.

As a preferred solution, an air purifier is installed at the inlet of the air inlet pipe 3 to prevent excessive impurities in the air from reducing the cooling effect and service life of the device.

As a preferred solution, the fins 17a on the outer side of the fin-tube heat exchanger 17 are made of copper fins to improve the heat dissipation effect.

As a preferred solution, the device is installed indoors to reduce the impact on the device due to weather; an air conditioner 1 is installed indoors, and when the weather temperature is high, the air conditioner is turned on to reduce the indoor temperature, so as to increase the temperature of the device. Thermal performance in higher environments.

As a preferred solution, a floating ball liquid level signal controller is installed in the circulating water pool of the device, and the water supply of the tap water pipe is controlled by the floating ball liquid level signal controller. When the water level in the circulating water pool is lower than a certain height, the water supply pipe is automatically replenished. , to ensure that there is enough spray water in the circulating pool. There are 2 gate valves on the water pipe, which can be manually opened or closed for automatic water supply.

As a preferred solution, a gate valve is also provided on the outlet pipe of the circulating water pipe to manually control the start and stop of the nozzle.

The above is only the preferred embodiment of the present invention, it should be pointed out: for those skilled in the art, under the premise of not departing from the principle of the present invention, several improvements and modifications can also be made, and these improvements and modifications are also It should be regarded as the protection scope of the present invention.

Claims (8)

1. The utility model provides a heat dissipation technology water supply installation is evaporated to shaft through-flow pump station shower water, includes: air-supply line, cooling chamber, play tuber pipe, hot current inlet manifold, cold flow outlet manifold, its characterized in that: one end of the air inlet pipe extends into the cooling chamber and extends to one side of the support, a fan is arranged in the air inlet pipe, filler is arranged on the other side of the support, an air outlet pipe is arranged on the lee side of the filler, the other end of the air outlet pipe extends out of the cooling chamber, and the air in the air inlet pipe flows from the air inlet pipe to the air outlet pipe; the bottom of the cooling chamber is provided with a circulating water tank, a tap water pipeline is fixedly connected with a water inlet of the circulating water tank, a gate valve is arranged on the tap water pipeline, a floating ball liquid level signal controller is arranged in the circulating water tank, a drainage pipeline is fixedly connected with a drainage outlet of the circulating water tank, the circulating water pipe is fixedly connected with a water outlet of the circulating water tank, a water suction pump, an automatic water filter and the gate valve are arranged on the circulating water pipe, and a nozzle is arranged at the; the bracket is provided with a finned tube heat exchanger, the peripheries of the upper parts of the finned tube heat exchangers are provided with water baffles, and the nozzles are arranged above the peripheral water baffles; the heat flow inlet of the finned tube heat exchanger is connected with the heat flow water inlet header pipe, and the cold flow outlet of the finned tube heat exchanger is connected with the cold flow water outlet header pipe.

2. The water supply device of the vertical shaft through-flow pump station spray water evaporation heat dissipation technology according to claim 1, characterized in that: the tap water pipeline is provided with 2 gate valves, a manual gate valve and an automatic gate valve.

3. The water supply device of the vertical shaft through-flow pump station spray water evaporation heat dissipation technology according to claim 1, characterized in that: and the outer side of the finned tube in the finned tube heat exchanger is provided with a radiating fin.

4. The water supply device of the vertical shaft through-flow pump station spray water evaporation heat dissipation technology according to claim 1, characterized in that: the water outlet of the circulating water pipe is provided with a plurality of nozzles.

5. The water supply device of the vertical shaft through-flow pump station spray water evaporation heat dissipation technology according to claim 1, characterized in that: and an air purifier is arranged at the inlet of the air inlet pipe.

6. The water supply device of the vertical shaft through-flow pump station spray water evaporation heat dissipation technology according to claim 1, characterized in that: and a water outlet of the circulating water tank is provided with a water temperature control box.

7. The water supply device of the vertical shaft through-flow pump station spray water evaporation heat dissipation technology according to claim 3, characterized in that: the radiating fins are made of copper.

8. The water supply device of the vertical shaft through-flow pump station spray water evaporation heat dissipation technology according to claim 1, characterized in that: and an air conditioner is arranged in the shaft through-flow pump station.

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