CN212717185U

CN212717185U - High-efficient reliable pitot tube pump of brand-new structure

Info

Publication number: CN212717185U
Application number: CN202021177692.4U
Authority: CN
Inventors: 廖文龙; 王勇; 李梦蝶; 刘强
Original assignee: Chongqing Yir Fluid Equipment Manufacturing Co ltd
Current assignee: Chongqing Yir Fluid Equipment Manufacturing Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-03-16
Anticipated expiration: 2030-06-23

Abstract

The utility model discloses a high-efficient reliable pitot tube pump of brand-new structure, including the bearing frame part, the bearing frame part includes bearing frame, support and changes the hub, and a support body coupling is on the bottom outer wall of bearing frame, the both ends outer wall of bearing frameThe bearing seat is connected with the angular contact ball bearings and the deep groove ball bearings at two sides in a clamping mode through a rear bearing cover and a front bearing cover. The utility model discloses a two parts cooperation operations of rotatory rotor and fixed pitot tube, liquid get into rotatory rotor intracavity from the import pipe, get into the pitot tube under centrifugal force and pressure effect, turn into speed through the pitot tube and can discharge from the outlet pipe steady, the pressure energy of no pulsation, adopt the principle of punching press stagnation pressure boost among conventional centrifugal pump and the aerospace technology, flow < 100m³At/h, the efficiency of a pitot tube pump is superior to that of a high-speed pump and a multi-stage pump with the same flow and lift.

Description

High-efficient reliable pitot tube pump of brand-new structure

Technical Field

The utility model relates to a medium transport technical field especially relates to a high-efficient reliable pitot tube pump of brand-new structure.

Background

The rotary jet pump (called pitot tube pump and pitot tube pump for short) is a new-type high-pressure chemical centrifugal pump, it is a single-stage pump with very unique small flow, high lift, structure and working principle, belonging to the pump with very low specific speed, so that it is a single-stage high-pressure pump with simplest structure, compact size, high pressure and most stable operation.

The pitot tube pump is mainly used for conveying clean liquid or liquid containing solid particles, is widely applied to industries such as petroleum, chemical engineering, chemical fertilizers, metallurgy, mining, carbon black, papermaking and the like, and is an ideal substitute product for a high-speed centrifugal pump, a high-pressure multistage centrifugal pump and a partial displacement pump. The pitot tube pump is the first choice of an infusion pump of a drilling and flushing system and a feeding pump of a carbon black production line in the automobile manufacturing industry, and is the standard equipment for deep well waste treatment in chemical plants, CIP (cleaning in place) high-pressure cleaning system in food processing, workshop cleaning system in the manufacturing industry and high-pressure cleaning in the paper industry.

About 90% of pitot tube pump failures are caused by mechanical seal and bearing failures, and if the failures caused by the mechanical seal and the bearing failures can be solved in a targeted manner, a large amount of manpower and material resource investment can be avoided in subsequent maintenance and inspection of the pitot tube pump, the burden of an enterprise is reduced, and the production and operation efficiency is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a pitot tube pump with a novel structure, high efficiency and reliability.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a high-efficiency and reliable pitot tube pump with a brand new structure comprises a bearing seat component, wherein the bearing seat component comprises a bearing seat, a support and a rotating hub, the support is integrally connected to the outer wall of the bottom end of the bearing seat, the outer walls of the two ends of the bearing seat are respectively sleeved with an angular contact ball bearing and a deep groove ball bearing, a rear bearing cover and a front bearing cover are clamped at the joint of the bearing seat and the angular contact ball bearings and the deep groove ball bearings on the two sides, the inner walls of the angular contact ball bearing and the deep groove ball bearing are connected with the same connecting shaft, the connecting shaft is close to the outer wall of one end of the deep groove ball bearing and connected with the rotating hub, the outer wall of the other end of the connecting shaft is fixedly connected with an external motor, a water-cooling cavity is arranged on the inner wall of, and the inner walls of the two ends of the cooling coil pipe are respectively provided with a plug, the outer wall of the end part of the bearing seat is fixedly connected with an outer shell, the rotary hub is positioned in the outer shell, the outer wall of the end part of the outer shell is fixedly connected with a pump cover, the other side of the rotary hub is provided with an impeller, the outer wall of the end part of the impeller is provided with a mechanical seal, the middle part of the outer wall of the pump cover is provided with a mechanical seal seat, the mechanical seal is positioned in the mechanical seal seat, the outer wall of the end part of the mechanical seal seat is connected with an outlet connecting pipe, the outer wall of the top end of the mechanical seal seat is provided with a liquid inlet section, the inner wall.

As a further aspect of the present invention, the bottom outer wall of the bearing seat is provided with an adjustable oil cup, and the inside of the adjustable oil cup is provided with an oil pointer.

As a further proposal of the utility model, the top outer wall of the bearing seat is provided with a breathing oil cup.

As a further scheme of the utility model, the both sides of angular contact ball bearing and deep groove ball bearing and the junction of connecting axle are equipped with back bearing position sleeve and front bearing position sleeve respectively, be equipped with back oil slinger and preceding oil slinger on the outer wall of back bearing position sleeve and front bearing position sleeve respectively.

As a further aspect of the present invention, the junction of the rear bearing cap and the bearing seat is provided with a rear bearing cap pad.

As a further aspect of the present invention, the two sides of the mechanical seal of the inner wall of the mechanical seal seat are respectively provided with a first O-ring and a second O-ring.

As a further proposal of the utility model, the sealing ring is sleeved at the joint of the pitot tube and the through groove.

The utility model has the advantages that:

1. the pitot tube pump has only two basic working parts: the centrifugal pump comprises a rotating rotor and a fixed pitot tube, wherein liquid enters a rotating rotor cavity from an inlet pipe, enters the pitot tube under the action of centrifugal force and pressure, is converted into stable and pulse-free pressure energy through the pitot tube and is discharged from an outlet pipe, the principle of punching stagnation pressurization in the conventional centrifugal pump and aerospace technology is adopted, and the flow rate is less than 100m³In the time of/h, the efficiency of the pitot tube pump is superior to that of a high-speed pump and a multi-stage pump with the same flow and lift, and the lower the specific revolution of the pump is, the more obvious the advantage of the efficiency of the rotary shell pump is;

2. the pitot tube pump is single-stage, the structure is better and compact, the easy-to-damage parts are few, the mechanical seal of the pitot tube pump is arranged at the pump suction inlet and bears the inlet pressure, the load borne by the angular contact ball bearing and the deep groove ball bearing in the bearing seat is correspondingly stable, meanwhile, the shaft seal between the rotor of the conventional centrifugal pump and the bearing seat is cancelled in the bearing seat, the mechanical seal is adopted, the bearing cannot be polluted due to leakage, and the rotating speed of the pump is lower than that of a high-speed pump with the same parameters, so the PV value of the mechanical seal is lower than that of the high;

3. this pitot tube pump is equipped with water-cooling structure in the bearing frame is inside, carries out the heat transfer in to holistic connecting axle cavity through cooling coil, maintains the operating temperature of connecting axle and the inside cavity of bearing frame in the standard, reduces the loss accumulation in the rotation.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of a pitot tube pump with a novel structure, high efficiency and reliability;

fig. 2 is the schematic view of the sectional structure of the bearing seat component of the pitot tube pump with a new structure and high efficiency and reliability provided by the utility model.

In the figure: the device comprises a bearing seat component 1, an impeller 2, a first O-shaped ring 3, a mechanical seal 4, a mechanical seal 5, a liquid inlet section 6, an outlet connecting pipe 7, a pump cover 8, a second O-shaped ring 9, a sealing ring 10, a pitot tube 11, a rotating hub 12, a connecting shaft 13, a rear bearing cover 14, a rear bearing cover pad 15, a rear bearing positioning sleeve 16, an adjustable oil cup 17, a breathing type oil filling cup 18, a bearing seat 19, a front bearing seat positioning sleeve 20, a front bearing cover 21, a front oil throwing cup 22, a water-cooling gland pad 23, a thread plug 24, a cooling coil 25 and a rear oil throwing cup 26.

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.

Referring to fig. 1-2, a pitot tube pump with a brand new structure, which is efficient and reliable, comprises a bearing seat component 1, wherein the bearing seat component 1 comprises a bearing seat 19, a support and a rotary hub 12, the support is integrally connected to the outer wall of the bottom end of the bearing seat 19, the outer walls of two ends of the bearing seat 19 are respectively sleeved with an angular contact ball bearing and a deep groove ball bearing, the joint of the bearing seat 19 and the angular contact ball bearing and the deep groove ball bearing on two sides is clamped with a rear bearing cover 14 and a front bearing cover 21, the inner walls of the angular contact ball bearing and the deep groove ball bearing are connected with a same connecting shaft 13, the outer wall of one end of the connecting shaft 13 close to the deep groove ball bearing is connected with the rotary hub 12, the outer wall of the other end of the connecting shaft 13 is fixedly connected with an external motor, the inner wall of one, the inner walls of the two ends of the cooling coil 25 are respectively provided with the screw plugs 24, heat exchange is carried out in the cavity of the integral connecting shaft through the cooling coil, the working temperature of the cavity inside the connecting shaft and the bearing seat is maintained within a standard, and loss accumulation in rotation is reduced;

bearing seat19's tip outer wall fixedly connected with shell body, and change the inside that hub 12 is located the shell body, the tip outer wall fixedly connected with pump cover 8 of shell body, the opposite side of rotating hub 12 is equipped with impeller 2, and impeller 2's tip outer wall is equipped with mechanical seal 4, the outer wall middle part of pump cover 8 is equipped with mechanical seal seat 5, and mechanical seal 4 is located the inside of mechanical seal seat 5, the tip outer wall of mechanical seal seat 5 is connected with export takeover 7, and the top outer wall of mechanical seal seat 5 is equipped with feed liquor section 6, the tip inner wall of export takeover 7 and the inner wall of feed liquor section are equipped with logical groove, and the tip outer wall that leads to the groove has cup jointed pitot tube 11, pitot tube 11 and the junction that leads to the groove have cup jointed sealing ring 10, adopt the principle of punching press stagnation pressure boost³In the time of/h, the efficiency of the pitot tube pump is superior to that of a high-speed pump and a multi-stage pump with the same flow and lift, and the lower the specific revolution of the pump is, the more obvious the advantage of the efficiency of the rotary shell pump is;

an adjustable oil cup 17 is arranged on the outer wall of the bottom end of a bearing seat 19, an oil pointer is arranged inside the adjustable oil cup 17, a breathing type oil cup 18 is arranged on the outer wall of the top of the bearing seat 19, a rear bearing positioning sleeve 16 and a front bearing positioning sleeve 20 are respectively arranged at the joint of the two sides of the angular contact ball bearing and the deep groove ball bearing and the connecting shaft 13, a rear oil throwing cup 26 and a front oil throwing cup 22 are respectively arranged on the outer walls of the rear bearing positioning sleeve 16 and the front bearing positioning sleeve 20, the rear oil throwing cup 26 and the front oil throwing cup 22 are sleeved on the outer wall of the connecting shaft 13, friction between the connecting shaft 13 and the angular contact ball bearing and the deep groove ball bearing is reduced, a rear bearing cover pad 15 is arranged at the joint of the rear bearing cover 14 and the bearing seat 19, and a first O-ring 3 and a second O-ring 9 are respectively arranged on.

The working principle of the embodiment is as follows: when the pitot tube pump with high stability and high reliability is used, the external motor is started to rotate, the connecting shaft 1 rotates in the bearing seat 19, the distance between the impeller 2 and the mechanical seal 4 is adjusted, so that the size of a channel inlet is adjusted, raw materials enter from the liquid inlet section 6, liquid enters the impeller 2 from the liquid inlet section 6, kinetic energy is obtained due to high-speed rotation of the impeller 2, the liquid enters the outer ring of the rotary drum 12 from the periphery of the impeller 2 along uranium, high-speed liquid enters from a population of the pitot tube 11 positioned at the outermost periphery of the rotary drum 12, the cross section area of the pitot tube 11 is gradually enlarged, the flow speed of the liquid is gradually reduced, so that the kinetic energy of the liquid is converted into pressure energy, and finally high-pressure liquid is discharged from the outlet connecting pipe 7, the impeller 2 and the rotary drum 12 are connected into a whole to synchronously rotate, so that no disc friction loss exists in the process of obtaining the kinetic energy of the liquid, the design of, the pitot tube 11 has an outer shape of a wing-shaped cross section to minimize the resistance to the circumferential flow.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", "first", "second", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

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 pitot tube pump with the brand new structure, which comprises a bearing seat component (1) and is characterized in that the bearing seat component (1) comprises a bearing seat (19), a support and a rotary hub (12), the support is integrally connected to the outer wall of the bottom end of the bearing seat (19), the outer walls of two ends of the bearing seat (19) are respectively sleeved with an angular contact ball bearing and a deep groove ball bearing, a rear bearing cover (14) and a front bearing cover (21) are clamped at the joint of the bearing seat (19) and the angular contact ball bearings and the deep groove ball bearings at two sides, the inner walls of the angular contact ball bearing and the deep groove ball bearing are connected with a same connecting shaft (13), the outer wall of one end of the connecting shaft (13) close to the deep groove ball bearing is connected with the rotary hub (12), the outer wall of the other end of the connecting shaft (13) is fixedly connected with an external, and the inner wall of the end part of the water-cooling cavity is fixedly connected with a water-cooling gland and a water cold-pressing gland cushion (23), the cooling coil (25) is fixedly connected inside the water-cooling cavity, the inner walls of the two ends of the cooling coil (25) are respectively provided with a plug (24), the outer wall of the end part of the bearing seat (19) is fixedly connected with an outer shell, the rotating hub (12) is positioned inside the outer shell, the outer wall of the end part of the outer shell is fixedly connected with a pump cover (8), the other side of the rotating hub (12) is provided with an impeller (2), the outer wall of the end part of the impeller (2) is provided with a mechanical seal (4), the middle part of the outer wall of the pump cover (8) is provided with a mechanical seal seat (5), the mechanical seal (4) is positioned inside the mechanical seal seat (5), the outer wall of the end part of the mechanical seal seat, the inner wall of the end part of the outlet connecting pipe (7) and the inner wall of the liquid inlet section are provided with through grooves, and the outer wall of the end part of each through groove is sleeved with a pitot tube (11).

2. The pitot tube pump with a brand new structure, high efficiency and reliability as claimed in claim 1, wherein the outer wall of the bottom end of the bearing seat (19) is provided with an adjustable oil cup (17), and an oil pointer is arranged inside the adjustable oil cup (17).

3. The pitot tube pump with new structure and high efficiency and reliability as claimed in claim 2, characterized in that the top outer wall of the bearing seat (19) is provided with a breathing type oil cup (18).

4. The pitot tube pump with a brand new structure, high efficiency and reliability as claimed in claim 1, characterized in that the joints of the connecting shafts (13) and both sides of the angular contact ball bearings and the deep groove ball bearings are respectively provided with a rear bearing locating sleeve (16) and a front bearing locating sleeve (20), and the outer walls of the rear bearing locating sleeve (16) and the front bearing locating sleeve (20) are respectively provided with a rear oil throwing cup (26) and a front oil throwing cup (22).

5. A new construction of a highly efficient and reliable pitot tube pump as claimed in claim 1 wherein the junction of the rear bearing cap (14) and bearing seat (19) is provided with a rear bearing cap pad (15).

6. The pitot tube pump with a brand new structure, high efficiency and reliability as claimed in claim 1, characterized in that a first O-ring (3) and a second O-ring (9) are respectively arranged on two sides of the mechanical seal (4) on the inner wall of the mechanical seal seat (5).

7. The pitot tube pump with novel structure and high efficiency and reliability as claimed in claim 1, characterized in that the joint of the pitot tube (11) and the through groove is sleeved with a sealing ring (10).