CN219368444U - Evaporative condenser water inflow protection system - Google Patents

Abstract

The utility model relates to an evaporative condenser water inlet protection system which comprises a horizontal water pump, wherein the horizontal water pump is connected with a water pump water inlet pipe, the water pump water inlet pipe is communicated with a transition water inlet of a water inlet cavity housing through a connecting flange plate, and a water inlet net cover is arranged on the side face of the water inlet cavity housing. The outer end of the water inlet cavity housing is provided with a housing supporting plate. The outside of the water inlet net cover is provided with a water inlet net cover flange, two side ends are provided with water inlet net cover supporting frames, and the water inlet net cover is provided with a handle. The utility model reduces the height of the water inlet under the condition of ensuring that the size of the water tank is unchanged, so as to prevent the water pump from entering water to form a rotary nest and sucking air, reduce the vibration and cavitation of the water pump, effectively prolong the service life of the water pump, effectively ensure the stability of the spray water circulation of the evaporative condenser/closed circulation tower, prevent the reduction of the equipment arrangement heat exchange performance caused by the reduction of the circulating water quantity influenced by the sucking air, and effectively delay the scaling of the surface of the heat exchange coil of the evaporative condenser/closed circulation tower.

Description

Evaporative condenser water inflow protection system

Technical Field

The utility model relates to a water pump water inlet protection net cover system of an evaporative condenser, which can be applied to various products with water pumps, such as the evaporative condenser or a closed cooling tower, and the like, and is arranged at the water inlet of the water pump.

Background

Fig. 1 is a diagram showing a water inlet screen system of a water pump of a conventional evaporative condenser/closed cooling tower, wherein when the water pump works, water enters a water inlet screen through holes formed in the water inlet screen, and is pumped out through a horizontal water pump, and a connecting flange plate plays a role in fixing the water inlet screen.

Technical problems to be solved:

1) As shown in FIG. 2, assuming a water tank height of 550mm, the height of the upper surface of the water inlet is 154mm due to the limitation of the height of the water inlet of the water pump, so that the water surface is theoretically 396mm in the figure. In order to ensure that water cannot overflow from a water tank with the height of 550mm after the evaporation type condenser/closed cooling tower is stopped, a water containing space with the height of 150-200 mm is reserved above the water tank, so that the maximum distance from the water surface to the upper surface of the water inlet screen cover is 196mm when the evaporation type condenser/closed cooling tower is in normal operation.

2) In the actual running process, the water level can fluctuate up and down due to the water absorption of the water pump and the water sprayed from the coil pipe after falling into the water tank. When the water level fluctuates, the water inlet nest rotating phenomenon is very easy to occur, in addition, the water inlet of the water pump is a simple square punching net cover, and the phenomenon that the water inlet nest is rotated and the water pump sucks air can occur when the water level is slightly lower. Once the phenomenon occurs, the phenomenon proves that the water inlet pressure is insufficient, and air enters the water pump along the rotary nest. When the water pump sucks air, the water supply amount is insufficient, the spraying water amount of the evaporative condenser/closed cooling tower is insufficient, so that the cooling/condensing heat exchange performance is further deteriorated, and meanwhile, the water film on the surface of the heat exchange coil is too thin or even cannot be covered due to the insufficient spraying water amount, so that scale generation on the surface of the heat exchange coil of the evaporative cooling/closed cooling tower is accelerated.

3) The water pump is driven into the volute by centrifugal force generated by the impeller rotating at high speed, so that cavitation is generated on the surface of the impeller after air enters, and the water pump is damaged. If the water pump with the simple square punching net cover is adopted, a certain height of the water inlet is required to be ensured to ensure the water inlet pressure of the water pump, as shown in fig. 2, the minimum distance between the water surface and the upper surface of the water inlet net cover is 180mm, then the water tank of the evaporative condenser/closed cooling tower is required to be reasonably heightened, when the flow and the power of the water pump are larger, the required distance is larger, so that the water storage capacity and the running weight of the evaporative condenser/closed cooling tower are increased, and meanwhile, the manufacturing cost of the evaporative condenser/closed cooling tower is increased.

Disclosure of Invention

The utility model aims to overcome the defects and provide a low-noise water inlet protection system of an evaporative condenser.

The aim of the utility model is achieved by the following technical scheme: the water inlet protection system of the evaporative condenser comprises a horizontal water pump, wherein the horizontal water pump is connected with a water inlet pipe of the water pump, the water inlet pipe of the water pump is communicated with a transition water inlet of a water inlet cavity housing through a connecting flange plate, and a water inlet net cover is arranged on the side face of the water inlet cavity housing.

The utility model further improves that: the outer end of the water inlet cavity housing is provided with a housing supporting plate.

The utility model further improves that: the outside of the water inlet net cover is provided with a water inlet net cover flange, two side ends are provided with water inlet net cover supporting frames, and the water inlet net cover is provided with a handle.

The utility model further improves that: one side or two sides of the water inlet cavity cover shell are provided with water inlet net covers.

The utility model further improves that: the area of the opening on the water inlet net cover and the area of the water inlet cavity cover are larger than or equal to the cross section area of the water inlet pipe of the water pump.

Compared with the prior art, the utility model has the following advantages:

the utility model reduces the height of the water inlet under the condition of ensuring that the size of the water tank is unchanged, so as to prevent the water pump from entering water to form a rotary nest and sucking air, reduce the vibration and cavitation of the water pump, effectively prolong the service life of the water pump, effectively ensure the stability of the spray water circulation of the evaporative condenser/closed circulation tower, prevent the reduction of the equipment arrangement heat exchange performance caused by the reduction of the circulating water quantity influenced by the sucking air, and effectively delay the scaling of the surface of the heat exchange coil of the evaporative condenser/closed circulation tower.

Drawings

FIG. 1 is a schematic diagram of a water pump inlet screen system of a conventional evaporative condenser/closed cooling tower in the background art;

FIG. 2 is a data explanatory diagram of a water pump inlet screen system of a conventional evaporative condenser/closed cooling tower;

FIG. 3 is a schematic diagram of the structure of the present utility model;

FIG. 4 is a diagram illustrating data of the present utility model;

reference numerals in the drawings: 1-horizontal water pump, 2-water pump inlet tube, 3-flange board, 4-water inlet cavity housing, 5-transition water inlet, 6-water inlet screen panel, 7-casing backup pad, 8-water inlet screen panel flange, 9-water inlet screen panel support frame, 10-handle, 11-water tank.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. Elements and features described in one embodiment of the utility model may be combined with elements and features shown in one or more other embodiments. It should be noted that the illustration and description of components and processes known to those of ordinary skill in the art, which are not relevant to the present utility model, have been omitted for clarity. All other embodiments, which can be made by those skilled in the art without undue burden on the person of ordinary skill in the art, are intended to be encompassed by the present utility model, based on the embodiments of the present utility model.

As shown in fig. 3, an evaporative condenser water inlet protection system comprises a horizontal water pump 1, wherein the horizontal water pump 1 is connected with a water pump water inlet pipe 2, the water pump water inlet pipe 2 is communicated with a transition water inlet 5 of a water inlet cavity housing 4 through a connecting flange plate 3, the connecting flange plate 3 plays a role in fixing the water inlet cavity housing 4, a water inlet net cover 6 is arranged on the side surface of the water inlet cavity housing 4, and the water inlet net cover 6 is arranged on one side or two sides of the water inlet cavity housing 4.

The outer end of the water inlet cavity housing 4 is provided with a housing supporting plate 7, and the housing supporting plate supports the outer end of the water inlet cavity housing and simultaneously seals the outer end of the water inlet cavity housing to prevent water from entering the 2# water inlet cavity housing from the outer end of the water inlet cavity housing.

The outside of the water inlet net cover 6 is provided with a water inlet net cover flange 8, two side ends are provided with a water inlet net cover supporting frame 9, and the water inlet net cover 6 is provided with a handle 10. The water inlet net cover flange and the water inlet net cover support frame are used for limiting and supporting the water inlet net cover, and the handle is used for disassembling and cleaning the water inlet net cover.

The open area of the water inlet net cover 6 and the water inlet area of the water inlet cavity cover 4 are larger than or equal to the cross section area of the water inlet pipe 2 of the water pump.

During normal operation, water enters the water inlet cavity cover through the holes on the water inlet net cover, and then enters the horizontal water pump through the transition water inlet and the water pump water inlet pipe to be pumped out.

As shown in FIG. 4, the water tank was 550mm high and the water surface was 200mm from the upper edge of the water tank. The water inlet cavity shell is 1230mm long and 55mm wide, and the diagonally-lined part is a water inlet of the water inlet housing. The height of the water inlet is only 55mm, and thus, the distance from the water inlet to the water surface is 295mm, and the water inlet is pressed down to enable the water pump to feed water so that the air is not easy to swirl, and the design mode is similar to siphon water feeding. The material adopted by the utility model is not limited to metal materials such as galvanized plates, stainless steel plates and the like, but also can be nonmetal materials with certain strength, all parts are connected by screws or fixing pins, and the disassembly and the cleaning are convenient.

Finally, it should be noted that: although the present utility model and its advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, means, method and steps described in the specification. Those of ordinary skill in the art will readily appreciate from the disclosure of the present utility model, processes, machines, means, methods, or steps, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized according to the present utility model. Accordingly, the appended claims are intended to include within their scope such processes, apparatuses, means, methods, or steps.

Claims (5)

1. The utility model provides an evaporative condenser protection system that intakes, includes horizontal water pump (1), its characterized in that: the horizontal water pump (1) is connected with the water inlet pipe (2), the water inlet pipe (2) of the water pump is communicated with the transition water inlet (5) of the water inlet cavity housing (4) through the connecting flange plate (3), and the side surface of the water inlet cavity housing (4) is provided with the water inlet net cover (6).

2. An evaporative condenser water ingress protection system as defined in claim 1 wherein: the outer end of the water inlet cavity housing (4) is provided with a housing supporting plate (7).

3. An evaporative condenser water ingress protection system as defined in claim 1 wherein: the outside of the water inlet net cover (6) is provided with a water inlet net cover flange (8), two side ends are provided with a water inlet net cover supporting frame (9), and the water inlet net cover (6) is provided with a handle (10).

4. An evaporative condenser water ingress protection system as defined in claim 1 wherein: one side or two sides of the water inlet cavity cover (4) are provided with a water inlet net cover (6).

5. An evaporative condenser water ingress protection system as defined in claim 1 wherein: the area of the opening on the water inlet net cover (6) and the area of the water inlet cavity cover (4) are larger than or equal to the cross section area of the water inlet pipe (2) of the water pump.