CN213419482U - Circulating cooling device of centrifugal pump - Google Patents

Abstract

The utility model discloses a centrifugal pump's circulative cooling device, including the centrifugal pump, still include water tank, outlet pipe and wet return, the bottom of water tank is connected with the outlet pipe, and the outlet pipe is connected with the water inlet of the water-sealed pipe of centrifugal pump, and the delivery port of the water-sealed pipe of centrifugal pump is connected with the wet return, and the delivery end and the water tank of wet return are connected, and install circulating water pump on the wet return. The utility model has the advantages that: the cooling water liquid in the water tank enters the water seal pipe of the centrifugal pump, and the circulating water pump leads out hot water in the water seal pipe, so that circulating heat exchange is formed, the heat of the centrifugal pump is taken away, the loss of high-temperature friction to parts is reduced, the running is stable and reliable, the service life is long, the running efficiency is high, and the equipment maintenance cost is reduced.

Description

Circulating cooling device of centrifugal pump

Technical Field

The utility model relates to a centrifugal pump cooling technology field, especially centrifugal pump's circulating cooling device.

Background

The motor drives the impeller to rotate at high speed, so that liquid generates centrifugal force, the liquid is thrown into the side flow channel and discharged out of the pump under the action of the centrifugal force, and the liquid is continuously sucked or discharged due to the continuous rotation of the centrifugal pump. The mechanical pump is heated abnormally due to continuous high-speed rotation, so that the bearing ball isolation frame is damaged, the bearing is loosened, and the heating bearing hole is too large due to friction, so that the bearing outer ring is loosened. The mechanical pump generates flowing friction between liquid and the pump body during operation, the rotating part and the fixed part generate friction with the inner ring, the outer ring, the shaft sleeve, the filler and the like of a bearing, heat can be generated due to the friction, and meanwhile, the pump body generates heat due to high temperature conduction of a conveying medium to the mechanical pump, so that the part is deformed, aged and damaged due to temperature rise.

Because of the ceaseless high-speed rotation, the liquid of the pump during the operation rubs with the flowing of the pump body, the bearing hole is too big, and the bearing outer ring is loosened. However, heat is generated due to friction, which causes the pump to heat, and the pump body to heat, resulting in deformation, aging and damage of the parts due to temperature rise. Under the working state of the existing centrifugal pump, cooling water is continuously introduced to cool the centrifugal pump, the cooling water can only be cooled on the external surface, good effect cannot be achieved in the pump body, the medium temperature is high and is conducted to the pump, the defects of increased equipment failure rate, difficulty in maintenance, complex replacement of parts, waste of water resources and the like exist, the using effect is not ideal, on the other hand, the conveying medium is an ammonium nitrate aqueous solution, certain potential safety hazards exist in heat generated by friction, and certain danger is brought to production.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a centrifugal pump's circulative cooling device.

The purpose of the utility model is realized through the following technical scheme: the circulating cooling device of the centrifugal pump comprises a centrifugal pump, and further comprises a water tank, a water outlet pipe and a water return pipe, wherein the bottom of the water tank is connected with the water outlet pipe, the water outlet pipe is connected with a water inlet of a water seal pipe of the centrifugal pump, a water outlet of the water seal pipe of the centrifugal pump is connected with the water return pipe, a water outlet end of the water return pipe is connected with the water tank, and the water return pipe is provided with a circulating water pump.

Preferably, the water tank is also connected with a water replenishing pipe, and the water replenishing pipe is provided with a water replenishing valve.

Preferably, the water outlet pipe is provided with a water outlet valve.

Preferably, the water replenishing valve is an electromagnetic valve.

Preferably, the upper end part of the water tank is provided with an upper liquid level sensor, the lower end part of the water tank is provided with a lower liquid level sensor, and the upper liquid level sensor and the lower liquid level sensor are electrically connected with the water replenishing valve through leads.

Preferably, the vertical height of the water tank is higher than the vertical height of the centrifugal pump.

The utility model has the advantages of it is following: the utility model discloses a centrifugal pump's circulative cooling device, cooling water liquid in the water tank enter into the water seal pipe of centrifugal pump, and circulating water pump draws forth the hot water in the water seal pipe again to think into endless heat exchange, take away the heat of centrifugal pump, reduce the loss of high temperature friction to spare part, the operation is reliable and stable, long service life, and the operating efficiency is high, reduces equipment cost of maintenance.

Drawings

FIG. 1 is a schematic structural diagram of the present invention

In the figure, 1-a water replenishing pipe, 2-a water replenishing valve, 3-an upper liquid level sensor, 4-a water tank, 5-a lower liquid level sensor, 6-a water outlet pipe, 7-a water outlet valve, 8-a centrifugal pump, 9-a circulating water pump and 10-a water return pipe.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are conventionally placed in use, or the position or positional relationship which the skilled person conventionally understand, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific position, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figure 1, the circulating cooling device of the centrifugal pump 8 comprises the centrifugal pump 8, the centrifugal pump 8 is an existing product and mainly comprises an impeller, a pump body, a pump shaft, a bearing, a sealing ring and a stuffing box, the stuffing box mainly comprises stuffing, a water sealing ring, a stuffing cylinder, a stuffing gland and a water sealing pipe, the stuffing box mainly has the function of sealing a gap between the pump shell and the pump shaft, water in the pump is prevented from flowing to the outside and air outside does not enter the pump, and the vacuum in the pump is always kept! In this embodiment, the circulation cooling device of the centrifugal pump 8 further includes a water tank 4, a water outlet pipe 6 and a water return pipe 10, the bottom of the water tank 4 is connected with the water outlet pipe 6, the water outlet pipe 6 is connected with the water inlet of the water seal pipe of the centrifugal pump 8, the water outlet of the water seal pipe of the centrifugal pump 8 is connected with the water return pipe 10, the water outlet end of the water return pipe 10 is connected with the water tank 4, the water return pipe 10 is provided with a circulation water pump 9, a water outlet valve 7 is opened, cooling water in the water tank 4 enters the water seal pipe through the water outlet pipe 6 to cool the filler, in order to facilitate the water in the water tank 4 to enter the water seal pipe, a water pump can be arranged on the water outlet pipe 6, and in this embodiment, the vertical height of the water tank 4 is higher than the vertical height of the centrifugal pump 8, therefore, water in the water tank 4 can enter the water seal pipe through potential energy, and the circulating water pump 9 works to pump away water liquid at the packing box, so that heat energy is taken away, loss of high-temperature friction to parts is reduced, the running is stable and reliable, the service life is long, the running efficiency is high, and the equipment maintenance cost is reduced.

In this embodiment, the water tank 4 is further connected with a water replenishing pipe 1, the water replenishing valve 2 is installed on the water replenishing pipe 1, when the water in the water tank 4 is insufficient, the water replenishing valve 2 is opened, and the water replenishing pipe 1 replenishes water into the water tank 4.

In this embodiment, the water replenishing valve 2 is an electromagnetic valve, the upper end of the water tank 4 is provided with the upper liquid level sensor 3, the lower end of the water tank 4 is provided with the lower liquid level sensor 5, the upper liquid level sensor 3 and the lower liquid level sensor 5 are electrically connected with the water replenishing valve 2 through a conducting wire, when the upper liquid level sensor 3 detects water, the water replenishing valve 2 is closed, so that the water replenishing pipe 1 stops replenishing water to the water tank 4, when the lower liquid level sensor 5 detects water, the water replenishing valve 2 is opened, and the water replenishing pipe 1 replenishes water to the water tank 4.

In this embodiment, the temperature of the water in the water return pipe 10 is higher, so that a longer water return pipe 10 can be provided, so that the heat dissipation of the liquid in the water return pipe 10 is realized during the flowing process, and the temperature of the water returned to the water tank 4 can be used as cooling water.

The working process of the utility model is as follows: opening outlet valve 7, the cooling water in water tank 4 enters into the water seal pipe through outlet pipe 6 to cool off the filler, circulating water pump 9 works simultaneously, then take away the water liquid of filler box department, thereby take away heat energy, and the water liquid in wet return 10 is natural cooling in transportation process, finally get back to in the water tank 4, when level sensor 5 is for detecting water liquid, moisturizing valve 2 is opened, moisturizing pipe 1 is then moisturizing to water tank 4, when last level sensor 3 detected water liquid, moisturizing valve 2 is then closed, thereby moisturizing pipe 1 stops to carry out the moisturizing to water tank 4.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (6)

1. The circulating cooling device of the centrifugal pump comprises a centrifugal pump and is characterized in that: the water pump is characterized by further comprising a water tank, a water outlet pipe and a water return pipe, wherein the bottom of the water tank is connected with the water outlet pipe, the water outlet pipe is connected with a water inlet of a water seal pipe of the centrifugal pump, a water outlet of the water seal pipe of the centrifugal pump is connected with the water return pipe, a water outlet end of the water return pipe is connected with the water tank, and the water return pipe is provided with a circulating water pump.

2. The circulating cooling apparatus of a centrifugal pump according to claim 1, wherein: the water tank is also connected with a water replenishing pipe, and a water replenishing valve is installed on the water replenishing pipe.

3. The circulating cooling apparatus of a centrifugal pump according to claim 2, wherein: and a water outlet valve is arranged on the water outlet pipe.

4. The circulating cooling apparatus of a centrifugal pump according to claim 3, wherein: the water replenishing valve is an electromagnetic valve.

5. The circulating cooling apparatus of a centrifugal pump according to claim 4, wherein: the upper end of the water tank is provided with an upper liquid level sensor, the lower end of the water tank is provided with a lower liquid level sensor, and the upper liquid level sensor and the lower liquid level sensor are electrically connected with the water replenishing valve through leads.

6. The circulating cooling apparatus of a centrifugal pump according to claim 5, wherein: the vertical height of the water tank is higher than that of the centrifugal pump.

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