CN210859341U

CN210859341U - Centrifugal pump shell capable of circularly radiating

Info

Publication number: CN210859341U
Application number: CN201922035742.9U
Authority: CN
Inventors: 张朝福; 张玉如
Original assignee: Nanjing Mujin Machinery Co ltd
Current assignee: Nanjing Mujin Machinery Co ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-06-26
Anticipated expiration: 2029-11-22

Abstract

The utility model discloses a can circulate radiating centrifugal pump shell relates to centrifugal pump technical field. The utility model discloses a base, base top surface fixedly connected with brace table, brace table top fixedly connected with shell, lateral wall axle center department intercommunication has the inlet tube behind the shell, and shell top intercommunication has the outlet pipe, and base left side wall fixedly connected with temperature controller, shell left side wall fixedly connected with switching device, lateral wall intercommunication have the axle sleeve before the shell, ten heat dissipation wings of axle sleeve week side fixedly connected with, heat dissipation wing lateral wall fixedly connected with temperature sensor, the temperature sensor output passes through electric wire and temperature controller input electric connection, the utility model discloses an utilize the rivers that flow in the telescopic shaft switch heat exchange tube, can realize the quick cooling to the centrifugal pump axle sleeve, when the axle sleeve temperature is normal, accessible heat dissipation wing radiating rate with higher speed, the heat exchange tube stops the heat dissipation, can the energy can be saved, avoids the overheated centrifugal pump transport performance.

Description

Centrifugal pump shell capable of circularly radiating

Technical Field

The utility model relates to a centrifugal pump technical field specifically is a can circulate radiating centrifugal pump shell.

Background

The centrifugal pump is a device for conveying liquid by centrifugal force generated when an impeller rotates, and has the following principle: when the impeller rotates quickly, liquid in the impeller is pushed by the impeller blades to rotate, so that the liquid obtains centrifugal force and moves outwards from the center of the impeller along the blade flow channel, and then is thrown out of the end parts of the blades and enters a volute in a pump shell; when the liquid flows to the diffusion pipe, as the cross-sectional area of the liquid flow is gradually enlarged and the flow speed is reduced, a part of kinetic energy is converted into a static energy head, so that the pressure is increased, and finally the liquid is extruded from the discharge pipe; meanwhile, the liquid is thrown out to generate partial vacuum in the center of the impeller, so that the liquid is continuously sucked into the pump under the action of the liquid level pressure.

At present, when an impeller inside a centrifugal pump rotates at a high speed, an axis body can rotate in a shaft sleeve, and because certain friction exists between the axis body and the shaft sleeve, accumulated heat is easy to generate under long-time work, so that the conveying performance of the centrifugal pump is reduced, and therefore, the development of a set of independent shaft sleeve cooling device is a technical problem to be solved by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The centrifugal pump shell can circularly radiate, and solves the problem of the prior art.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a centrifugal pump shell capable of circularly radiating comprises a base, wherein a supporting table is fixedly connected to the top surface of the base, the top of the supporting table is fixedly connected with a shell, a water inlet pipe is communicated with the axis of the rear side wall of the shell, a water outlet pipe is communicated with the top of the shell, a temperature controller is fixedly connected to the left side wall of the base, and a switching device is fixedly connected to the left side wall of the shell;

the shell front side wall is communicated with a shaft sleeve, ten heat dissipation fins are fixedly connected to the side face of the periphery of the shaft sleeve, a temperature sensor is fixedly connected to the side wall of each heat dissipation fin, the output end of the temperature sensor is electrically connected with the input end of a temperature controller through an electric wire, ten heat exchange tubes penetrate through the side wall of the shaft sleeve, and the heat exchange tubes are wound on the side face of the periphery of the shaft sleeve, and the tail ends of the heat exchange tubes are communicated with.

Further, the equal fixedly connected with flange of shell one end is kept away from to inlet tube and outlet pipe, the equal fixedly connected with rubber pad in four edges of base bottom surface.

Further, lateral wall fixedly connected with digital display screen before the shell, the temperature controller output passes through electric wire and digital display screen input electric connection.

Further, switching device is including the protective housing that is fixed in the shell left side wall, protective housing inner wall fixedly connected with slim hydro-cylinder, the temperature controller output passes through electric wire and slim hydro-cylinder input electric connection, slim hydro-cylinder output shaft one end fixedly connected with telescopic shaft, telescopic shaft one end runs through the shell and extends to inside the shell, the telescopic shaft is located the inside one end of shell and has seted up the inlet opening, the heat exchange tube one side inner wall is kept away from to the inlet opening is the circular arc curved surface.

Further, heat exchange tube one end runs through the protective housing and extends to inside the protective housing, the telescopic shaft is hollow mechanism, the heat exchange tube is located inside one end of the protective housing and communicates with the inside of the telescopic shaft, the inside wall of the water inlet is communicated with the inside of the telescopic shaft.

The utility model discloses following beneficial effect has:

1. this can circulate radiating centrifugal pump shell through utilizing the rivers that flow in the telescopic shaft switch heat exchange tube, can realize the quick cooling to the centrifugal pump axle sleeve, and when the axle sleeve temperature was normal, the accessible heat dissipation wing quickened the radiating rate, and the heat exchange tube stops the heat dissipation, can the energy can be saved, avoids the overheated centrifugal pump transport performance that influences of axle sleeve.

2. This can circulate radiating centrifugal pump shell through lateral wall installation digital display screen before the shell, can make things convenient for the temperature information on the operating personnel direct observation heat dissipation wing, the real time monitoring centrifugal pump's of being convenient for operating condition, and the rubber pad can improve the damping performance of base simultaneously, guarantee centrifugal pump job stabilization.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a centrifugal pump casing capable of performing circulation heat dissipation according to the present invention;

FIG. 2 is a schematic view of the opposite side of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

FIG. 4 is a schematic structural diagram of a switching device;

fig. 5 is a block diagram of the circuit control module of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

in the figure: 1-base, 2-supporting table, 3-temperature controller, 4-shell, 5-water inlet pipe, 6-water outlet pipe, 7-flange, 8-rubber pad, 9-switching device, 10-digital display screen, 11-heat exchange pipe, 12-shaft sleeve, 13-heat dissipation fin, 14-temperature sensor, 901-protective shell, 902-thin oil cylinder, 903-telescopic shaft and 904-water inlet hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a centrifugal pump shell capable of circularly radiating comprises a base 1, wherein a supporting table 2 is fixedly connected to the top surface of the base 1, a shell 4 is fixedly connected to the top of the supporting table 2, a water inlet pipe 5 is communicated with the axis of the rear side wall of the shell 4, a water outlet pipe 6 is communicated with the top of the shell 4, an XMTA-JK208K type temperature controller 3 is fixedly connected to the left side wall of the base 1, and a switch device 9 is fixedly connected to the left side wall of the shell 4; the temperature controller 3 is electrically connected with the existing power supply through a wire;

the front side wall of the shell 4 is communicated with a shaft sleeve 12, the peripheral side surface of the shaft sleeve 12 is fixedly connected with ten heat dissipation fins 13, the side wall of each heat dissipation fin 13 is fixedly connected with a temperature sensor 14 of D6T-44L-06 type, the output end of each temperature sensor 14 is electrically connected with the input end of the temperature controller 3 through a wire, heat exchange tubes 11 penetrate through the side walls of the ten shaft sleeves 12, the heat exchange tubes 11 are wound on the peripheral side surface of the shaft sleeve 12, and the tail ends of the heat exchange tubes are; the ten heat dissipation fins 13 can accelerate temperature heat dissipation at the normal temperature of the centrifugal pump, and when a threshold value is preset at a high temperature, the heat exchange tubes 11 are adopted for heat exchange and heat dissipation, so that energy can be saved.

Wherein, one ends of the water inlet pipe 5 and the water outlet pipe 6 far away from the shell 4 are both fixedly connected with flanges 7, and four corners of the bottom surface of the base 1 are both fixedly connected with rubber pads 8; the water inlet pipe 5 and the water outlet pipe 6 can be connected with the existing water pipe through the flange 7, and the rubber pad 8 can improve the damping performance of the base 1.

Wherein, the lateral wall fixedly connected with JLX 1288964 12864G-290-PC model digital display screen 10 before shell 4, the output of temperature controller 3 passes through electric wire and digital display screen 10 input electric connection, and temperature controller 3 calculates the average value of temperature information and carries to digital display screen 10 in, and digital display screen 10 shows the temperature average value on ten cooling fins 13, the operating personnel direct observation of being convenient for.

The switch device 9 comprises a protective shell 901 fixed on the left side wall of the shell 4, the inner wall of the protective shell 901 is fixedly connected with a CX-SD/LA thin oil cylinder 902, the output end of the temperature controller 3 is electrically connected with the input end of the thin oil cylinder 902 through an electric wire, one end of the output shaft of the thin oil cylinder 902 is fixedly connected with a telescopic shaft 903, one end of the telescopic shaft 903 penetrates through the shell 4 and extends into the shell 4, one end of the telescopic shaft 903, which is positioned inside the shell 4, is provided with a water inlet 904, and the inner wall of one side, away from the heat exchange; the stroke of the thin cylinder 902 is 10 mm.

One end of the heat exchange tube 11 penetrates through the protective shell 901 and extends into the protective shell 901, the telescopic shaft 903 is a hollow mechanism, one end of the heat exchange tube 11, which is positioned inside the protective shell 901, is communicated with the inside of the telescopic shaft 903, and the inner side wall of the water inlet 904 is communicated with the inside of the telescopic shaft 903; the protective case 901 protects the electronic components inside the switch device 9.

The specific application of this embodiment is: when the fan blades of the centrifugal pump rotate in the shell 4, the shaft body connected with the fan blades rotates in the shaft sleeve 12, the shaft body continuously rubs against the inner wall of the shaft sleeve 12 to generate heat accumulation, and in order to ensure that the centrifugal pump can stably operate, the shaft sleeve 12 needs to be properly radiated; the heat dissipation fins 13 on the peripheral side surfaces of the shaft sleeve 12 can conduct out part of heat, the heat dissipation speed is improved, the temperature sensors 14 on the side walls of the heat dissipation fins 13 collect temperature information on the heat dissipation fins 13 in real time, ten groups of temperature information are transmitted to the temperature controller 3, the temperature controller 3 calculates the average value of the temperature information and transmits the average value to the digital display screen 10, and the digital display screen 10 displays the average value of the temperature on the ten heat dissipation fins 13, so that an operator can conveniently and directly observe the temperature of the surface of the shaft sleeve 12 and monitor the temperature of the surface of the shaft; if the temperature on the heat dissipation fin 13 exceeds a preset temperature threshold value of the temperature controller 3, the temperature controller 3 controls the thin oil cylinder 902 in the switch device 9 to start, and the output shaft of the thin oil cylinder 902 extends, so that one end of the telescopic shaft 903 extends into the shell 4, wherein when one end of the output shaft of the thin oil cylinder 902 does not extend, the water inlet 904 does not extend into the shell 4, and the water inlet 904 and the heat exchange tube 11 are both in a closed state; when the water inlet 904 extends into the casing 4, water rapidly passes through the water inlet 904, because the inner wall of the side, away from the heat exchange tube 11, of the water inlet 904 is an arc-shaped curved surface, the flow velocity of the water in the water inlet 904 is faster, the pressure in the water inlet 904 is reduced, a part of the water is sucked into the telescopic shaft 903 and then flows into the heat exchange tube 11, because the tail end of the heat exchange tube 11 is connected with the casing 4 and is close to the axis of the casing 4, the tail end of the heat exchange tube 11 is in a negative pressure state, the water is sucked to flow around the shaft sleeve 12 along the heat exchange tube 11, the water exchanges heat with the shaft sleeve 12 in the flowing process, heat is taken away and enters the axis of the casing 4 again, the temperature of the shaft sleeve 12 is reduced through synchronous and continuous circulation heat dissipation, the centrifugal pump can continuously operate, when the temperature information 902 acquired by the temperature, the output shaft of the thin oil cylinder 902 drives the telescopic shaft 903 to contract, and the water inlet 904 and the heat exchange tube 11 are closed again.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a can carry out heat dissipation's centrifugal pump shell of circulation, includes base (1), its characterized in that: the top surface of the base (1) is fixedly connected with a supporting table (2), the top of the supporting table (2) is fixedly connected with a shell (4), the axis of the rear side wall of the shell (4) is communicated with a water inlet pipe (5), the top of the shell (4) is communicated with a water outlet pipe (6), the left side wall of the base (1) is fixedly connected with a temperature controller (3), and the left side wall of the shell (4) is fixedly connected with a switch device (9);

shell (4) preceding lateral wall intercommunication has axle sleeve (12), axle sleeve (12) week side fixedly connected with ten heat dissipation wings (13), heat dissipation wing (13) lateral wall fixedly connected with temperature sensor (14), temperature sensor (14) output passes through electric wire and temperature controller (3) input electric connection, ten axle sleeve (12) lateral wall has all run through heat exchange tube (11), heat exchange tube (11) twine in axle sleeve (12) week side and terminal and shell (4) intercommunication.

2. The centrifugal pump shell capable of circularly dissipating heat as claimed in claim 1, wherein a flange (7) is fixedly connected to one end of the water inlet pipe (5) and one end of the water outlet pipe (6) far away from the shell (4), and rubber pads (8) are fixedly connected to four corners of the bottom surface of the base (1).

3. The centrifugal pump casing capable of circularly dissipating heat as claimed in claim 1, wherein a digital display screen (10) is fixedly connected to the front side wall of the casing (4), and the output end of the temperature controller (3) is electrically connected with the input end of the digital display screen (10) through an electric wire.

4. The centrifugal pump casing capable of circularly dissipating heat according to claim 1, wherein the switch device (9) comprises a protective casing (901) fixed to the left side wall of the casing (4), a thin cylinder (902) is fixedly connected to the inner wall of the protective casing (901), the output end of the temperature controller (3) is electrically connected to the input end of the thin cylinder (902) through an electric wire, one end of the output shaft of the thin cylinder (902) is fixedly connected with a telescopic shaft (903), one end of the telescopic shaft (903) penetrates through the casing (4) and extends into the casing (4), one end of the telescopic shaft (903) located inside the casing (4) is provided with a water inlet (904), and the inner wall of the water inlet (904) away from the heat exchange tube (11) is an arc curved surface.

5. A centrifugal pump casing capable of dissipating heat circularly according to claim 4, characterized in that one end of the heat exchange pipe (11) penetrates through the protective casing (901) and extends to the inside of the protective casing (901), the telescopic shaft (903) is a hollow mechanism, one end of the heat exchange pipe (11) positioned inside the protective casing (901) is communicated with the inside of the telescopic shaft (903), and the inner side wall of the water inlet (904) is communicated with the inside of the telescopic shaft (903).