CN218817223U

CN218817223U - Multistage pump water pumping section

Info

Publication number: CN218817223U
Application number: CN202223359821.3U
Authority: CN
Inventors: 孙嘉豪; 杨光; 吕丰
Original assignee: Guangzhou Baiyuan Pump Group Ltd
Current assignee: Guangzhou Baiyuan Pump Group Ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-04-07
Anticipated expiration: 2032-12-13

Abstract

The invention relates to the technical field of multistage pumps, in particular to a multistage pump water outlet section, wherein a water outlet section shell is a volute water outlet section, a lower spigot arranged on the left side of the water outlet section shell is matched with a spigot of a middle section, an upper spigot arranged on the right side of the water outlet section shell is matched with a spigot of a motor frame, the water outlet section shell does not use a guide vane as an extruding chamber any more, and a water return hole connected with a water return pipe is arranged at the lower end of the right side of the water outlet section shell.

Description

Multistage pump water pumping section

Technical Field

The invention relates to the technical field of multistage pumps, in particular to a water pumping section of a multistage pump.

Background

The multistage pump section of pumping is that the multistage pump is used for the casting piece of play water, and multistage pump section of pumping inside is equipped with the stator, at the in-process of multistage pump work: the prime motor drives the water pump to rotate, a medium is sucked from the water inlet section, flows into the secondary water inlet section through the pressurizing of the positive impeller group, flows into the secondary water inlet section through the transition pipe, is pressurized again through the reverse impeller group and flows out of the water outlet section, so that the medium is conveyed continuously;

with the requirements of energy conservation and emission reduction and the requirements of users on the efficiency of the multi-stage pump on the market, the efficiency of the multi-stage pump is improved, and the reduction of the wearing power of the pump is an urgent requirement for the development of the multi-stage pump, so that a multi-stage pump water outlet section is provided for solving the problems.

Disclosure of Invention

The invention aims to provide a multi-stage pump water outlet section to solve the problems of low efficiency and high wearing power of the existing multi-stage pump.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a multistage pump goes out water section, goes out water section casing and is the volute formula play water section, go out the cooperation of lower tang and the middle section tang that water section casing left side set up, go out the cooperation of last tang and the motor frame tang that water section casing right side set up, go out water section casing no longer use the stator as the extrusion room, it sets up return water jogged joint wet return to go out water section casing right side lower extreme.

The invention is further optimized, the inside of the water outlet volute arranged at the upper end of the water outlet section shell is provided with a water outlet cross street surface adjusting structure;

go out water section cross street and adjust structure and include fixed sleeve pipe, the just hole of tearing open has been seted up to the fixed sleeve pipe up end, the solid fixed ring in the inboard fixedly connected with bottom of fixed sleeve pipe lower extreme, the solid fixed ring upper end fixedly connected with flexible cover in bottom, the flexible cover upper end fixedly connected with dead lever, through telescopic link fixed connection between the dead lever, the one end fixedly connected with hydraulic telescoping plate at flexible cover center is kept away from to the dead lever, the one end that the dead lever was kept away from to hydraulic telescoping plate is equipped with hydraulic oil and adjusts the mouth, the one end and the fixed inside pipe wall fixed connection of fixed sleeve that the dead lever was kept away from to the hydraulic telescoping plate.

The invention is further optimized that the fixed sleeve is arranged in a cylindrical shape, the outer side of the lower end of the fixed sleeve is provided with a thread, the fixed sleeve is in screw connection with the upper end of the water outlet section shell through the thread arranged at the lower end, the water outlet section is characterized in that a fixed ring plate is fixedly connected to the inner side of the upper end of the shell body of the water outlet section, a sealing washer is fixedly connected to the upper end of the fixed ring plate, and the upper end of the sealing washer is tightly attached to the bottom end of the fixed sleeve.

The invention is further optimized in that the number of the fixed rods is two, the fixed rods are arranged in parallel, the number of the telescopic rods is two, and the telescopic rods and the fixed rods are arranged at 90 degrees.

The invention is further optimized in that the outer side of the water outlet section shell is fixedly connected with a sound-proof shield through a hoop, the sound-proof shield is in a special-shaped arrangement, and the inner wall of the sound-proof shield is tightly attached to the outer wall of the water outlet section shell.

According to the invention, the inner side of the sound-proof shield is fixedly connected with a plurality of air bags, the air bags are all provided with air inlets, the bottom end of the sound-proof shield is fixedly connected with an air inlet valve, the air inlet valve and the air bags are communicated through the air inlets, and the air inlet valve is a one-way valve.

The invention is further optimized in that the inner side of the lower end of the sound-proof shield is fixedly connected with a noise monitor and an insulated wire, the lower end of the insulated wire is fixedly connected with an indicator light, the upper end of the noise monitor is tightly attached to the outer wall of the shell of the water outlet section, and the noise monitor, the insulated wire and the indicator light are electrically connected.

The invention is further optimized in that a hole groove is formed in the inner side of the water outlet section shell, the hole groove is arranged in a circular shape, and an electric heating pipe is arranged in the hole groove in a circular shape.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, through the arranged water outlet section shell and the water outlet volute, the water outlet section adopts the volute design of a hydraulic model in the application process, and meanwhile, a guide vane is not used as an extrusion chamber, so that the efficiency of the whole pump is greatly improved, and the wearing power of the pump is reduced;

2. according to the invention, through the arranged water outlet cross section adjusting structure, the size of the cross section of the water outlet can be adjusted in the actual using process, so that the pressure of water outlet at the water outlet can be adjusted;

3. according to the invention, the sound insulation effect can be achieved through the arranged air bag, the sound insulation cover and the noise monitor, so that the overall silence of the multi-stage pump is improved, the sound insulation cover can be ensured to be tightly attached to the water outlet section shell through the arranged air bag, and meanwhile, the arranged noise monitor can timely warn a worker to overhaul through the indicator lamp when the sound in the water outlet section shell is large;

4. according to the invention, the inner part of the shell of the water outlet section can be heated through the hole groove and the electric heating pipe, so that the problem that the inner sealing ring fails when the multi-stage pump is used in a temperature-crossed environment can be prevented.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 at A according to the present invention;

FIG. 3 is a schematic view of a cross-sectional adjustment structure of the water outlet according to the present invention;

FIG. 4 is a schematic view of the structure of FIG. 3 at B according to the present invention;

FIG. 5 is a schematic view of the structure of FIG. 1 at point C.

In the figure: 1. a water outlet section shell; 2. an upper seam allowance; 3. a lower spigot; 4. a water outlet volute; 5. a sound-proof housing; 6. clamping a hoop; 7. a water outlet cross section adjusting structure; 701. fixing the sleeve; 702. conveniently detaching the hole; 703. a bottom fixing ring; 704. a flexible cover; 705. a hydraulic oil regulating port; 706. a hydraulic expansion plate; 707. fixing the rod; 708. a telescopic rod; 8. a stationary ring plate; 9. a sealing gasket; 10. a hole groove; 11. an electric heating tube; 12. an air bag; 13. an intake valve; 14. an air inlet; 15. a noise monitor; 16. an insulated wire; 17. an indicator light; 18. a water return hole.

Detailed Description

Example 1:

referring to fig. 1-5, the present invention provides a technical solution:

the utility model provides a multistage pump goes out water section, goes out water section casing 1 and is the volute type play water section, goes out the lower tang 3 and the middle section tang cooperation that set up in water section casing 1 left side, goes out the last tang 2 and the motor frame tang cooperation that set up in water section casing 1 right side, goes out water section casing 1 and no longer uses the stator as the extrusion room, goes out water section casing 1 right side lower extreme and sets up return water hole 18 and connect the wet return.

Specifically, as shown in fig. 1, fig. 3, fig. 4 and fig. 5, a water outlet cross-street adjusting structure is arranged inside a water outlet volute 4 arranged at the upper end of a water outlet section shell 1; the size of the cross section of the water outlet section shell 1 can be adjusted in the actual use process; the water outlet section cross street surface adjusting structure comprises a fixed sleeve 701, wherein the upper end surface of the fixed sleeve 701 is provided with a detachable hole 702, the inner side of the lower end of the fixed sleeve 701 is fixedly connected with a bottom fixed ring 703, the upper end of the bottom fixed ring 703 is fixedly connected with a flexible cover 704, the upper end of the flexible cover 704 is fixedly connected with a fixed rod 707, the fixed rods 707 are fixedly connected through a telescopic rod 708, one end of the fixed rod 707, which is far away from the center of the flexible cover 704, is fixedly connected with a hydraulic expansion plate 706, one end of the hydraulic expansion plate 706, which is far away from the fixed rod 707, is provided with a hydraulic oil adjusting port 705, one end of the hydraulic expansion plate 706, which is far away from the fixed rod 707, is fixedly connected with the inner wall of the fixed sleeve 701, the water outlet cross section adjusting structure can be stably arranged at the upper end of the inner side of the water outlet section shell 1, meanwhile, the stability in the water outlet cross section size adjusting process can be ensured, and good practical value is achieved; the fixing sleeve 701 is arranged in a cylindrical shape, threads are arranged on the outer side of the lower end of the fixing sleeve 701, the fixing sleeve 701 is in threaded connection with the upper end of the water outlet section shell 1 through the threads arranged on the lower end, a fixing ring plate 8 is fixedly connected to the inner side of the upper end of the water outlet section shell 1, a sealing washer 9 is fixedly connected to the upper end of the fixing ring plate 8, the upper end of the sealing washer 9 is tightly attached to the bottom end of the fixing sleeve 701, and the sealing performance of the whole structure of the device in the actual installation and use process can be guaranteed; thereby ensuring the normal operation of the whole body; the number of the fixed rods 707 is two, the fixed rods 707 are arranged in parallel, the number of the telescopic rods 708 is two, and the telescopic rods 708 and the fixed rods 707 are arranged at 90 degrees, so that the size of the water outlet cross section can be stably adjusted through the extension and retraction of the hydraulic telescopic plate 706 in the actual use process;

specifically, as shown in fig. 1 and fig. 2, the outer side of the water outlet section shell 1 is fixedly connected with a sound-proof shield 5 through a hoop 6, the sound-proof shield 5 is in a special-shaped arrangement, the inner wall of the sound-proof shield 5 is tightly attached to the outer wall of the water outlet section shell 1, so that a good sound-proof effect can be achieved in the actual use process, and the problem that noise generated in the working process of the multistage pump is transmitted to the outside can be effectively prevented; the inner side of the sound-proof shield 5 is fixedly connected with a plurality of air bags 12, the air bags 12 are provided with air inlets 14, the bottom end of the sound-proof shield 5 is fixedly connected with an air inlet valve 13, the air inlet valve 13 is communicated with the air bags 12 through the air inlets 14, the air inlet valve 13 is a one-way valve, the air bags 12 can be inflated through the arranged air inlet valve 13, and therefore the sound-proof shield 5 can be tightly attached to the outer wall of the water outlet section shell 1 in the using process; the noise monitor 15 and the insulated wire 16 are fixedly connected to the inner side of the lower end of the sound-proof cover 5, the indicator lamp 17 is fixedly connected to the lower end of the insulated wire 16, the upper end of the noise monitor 15 is tightly attached to the outer wall of the water outlet section shell 1, and the noise monitor 15, the insulated wire 16 and the indicator lamp 17 are electrically connected, so that warning can be timely given when noise in the water outlet section shell 1 changes, and further workers can be timely reminded to detect the working condition of the multi-stage pump; go out 1 inboard of water section casing and seted up hole groove 10, hole groove 10 is the circular shape setting, and hole groove 10 inside is equipped with electric heating pipe 11, and electric heating pipe 11 is the circular shape setting, can be at the in-process of multistage pump work through the heating of motor heat pipe 11 to inside that sets up, and then can guarantee the operating mode of multistage pump when ambient temperature is lower (can prevent effectively that the lower problem that causes the influence to inside sealing device of multistage pump inside temperature).

The working process comprises the following steps: in the process of installing and using a multi-stage pump water outlet section, the efficiency of the whole pump can be greatly improved through the matching of the lower spigot 3 and the middle spigot, the matching of the upper spigot and the spigot of a motor frame, a guide vane is not needed to be used as an extrusion chamber, the whole pump adopts a new hydraulic model volute type design, and further can meet the design requirement, meanwhile, in the actual using process, the hydraulic expansion plate 706 can be controlled to expand through the arranged hydraulic pressure regulating port 705, so that the distance between the fixing rods 707 can be regulated, the arrangement can realize the regulation of the cross section of the water outlet in the actual using process, further can regulate the pressure of water outlet, in the using process, the whole water outlet cross section regulating structure 7 can be disassembled through the fixing sleeve 701, and the maintenance and the replacement of the water outlet cross section regulating structure 7 in the later period are convenient, the sealing device has good convenience, the sealing performance of the water outlet cross section adjusting structure 7 arranged at the upper end of the water outlet section shell 1 can be guaranteed through the arranged fixing ring plate 9 and the arranged sealing washer 9, meanwhile, the sound-proof shield 5 can be fixed at the outer side of the water outlet section shell 1 through the hoop 6 in the using process of the water outlet section shell 1, the arrangement can reduce the noise of the whole multi-stage pump in the using process, the air bag 12 arranged in the sound-proof shield 5 can be inflated through the air inlet valve 13, the tightness degree of the outer wall connection of the water outlet section shell 1 in the using process of the sound-proof shield 5 can be further guaranteed, the noise monitor 15 fixedly connected with the inside of the sound-proof shield 5 can monitor the noise in the water outlet section shell 1 in real time in the working process of the multi-stage pump, when the noise reaches a certain degree, the noise monitor 15 can control the indicator lamp 17 to be lightened (when the fluid in the multi-stage pump contains more impurities, impurity can lead to the noise increase to the inside collision that causes of play water section shell 1, all can lead to the inside noise increase of multistage pump when inside transmission shaft and bearing wearing and tearing condition are serious simultaneously), can warn the staff like this, can be timely carry out the maintenance to the multistage pump, can prevent effectively that the multistage pump from damaging the problem that leads to losing the maintenance value completely.

The principles and embodiments of the present invention have been described herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.

Claims

1. A multistage pump-out water section which characterized in that: go out water section casing (1) and go out the water section for the spiral case formula, go out lower tang (3) and the cooperation of middle section tang that water section casing (1) left side set up, go out last tang (2) and the cooperation of motor frame tang that water section casing (1) right side set up, go out water section casing (1) and no longer use the stator as the extrusion chamber, it sets up return water hole (18) and connects the wet return to go out water section casing (1) right side lower extreme.

2. The multistage pump-out section of claim 1, wherein: a water outlet cross street surface adjusting structure is arranged in a water outlet volute (4) arranged at the upper end of the water outlet section shell (1);

go out water section horizontal street and adjust structure and include fixed sleeve pipe (701), just tear hole (702) open has been seted up to fixed sleeve pipe (701) upper end, the fixed ring (703) in the inboard fixedly connected with bottom of fixed sleeve pipe (701) lower extreme, the fixed ring (703) in bottom upper end fixedly connected with flexible cover (704), flexible cover (704) upper end fixedly connected with dead lever (707), through telescopic link (708) fixed connection between dead lever (707), one end fixedly connected with hydraulic stretching plate (706) at flexible cover (704) center is kept away from in dead lever (707), the one end that dead lever (707) were kept away from in hydraulic stretching plate (706) is equipped with hydraulic oil regulation mouth (705), the one end and fixed sleeve pipe (701) inner wall fixed connection of dead lever (707) are kept away from in hydraulic stretching plate (706).

3. A multi-stage pump out section as claimed in claim 2, wherein: the improved water outlet device is characterized in that the fixing sleeve (701) is cylindrical, threads are formed in the outer side of the lower end of the fixing sleeve (701), the fixing sleeve (701) is connected with the position of the upper end of the water outlet section shell (1) in a spiral mode through the threads formed in the lower end of the fixing sleeve (701), the inner side of the upper end of the water outlet section shell (1) is fixedly connected with a fixing ring plate (8), a sealing gasket (9) is fixedly connected to the upper end of the fixing ring plate (8), and the upper end of the sealing gasket (9) is tightly attached to the bottom end of the fixing sleeve (701).

4. A multi-stage pump out section as claimed in claim 2, wherein: the number of the fixing rods (707) is two, the fixing rods (707) are arranged in parallel, the number of the telescopic rods (708) is two, and the telescopic rods (708) and the fixing rods (707) are arranged in an angle of 90 degrees.

5. A multi-stage pump out section as claimed in claim 1, wherein: go out water section casing (1) outside and pass through clamp (6) fixedly connected with sound-proof housing (5), sound-proof housing (5) are special-shaped's setting, sound-proof housing (5) inner wall and play water section casing (1) outer wall are closely laminated.

6. A multi-stage pump outlet section according to claim 5, wherein: sound-proof housing (5) inboard fixedly connected with gasbag (12), gasbag (12) set up a plurality ofly, air inlet (14) have all been seted up on gasbag (12), sound-proof housing (5) bottom fixedly connected with admission valve (13), be the setting of intercommunication through air inlet (14) between admission valve (13) and gasbag (12), and admission valve (13) are the check valve.

7. A multi-stage pump out section as claimed in claim 5, wherein: the utility model discloses a noise enclosure, including sound-proof housing (5), inboard fixedly connected with noise monitor (15) of lower extreme and insulated wire (16), insulated wire (16) lower extreme fixedly connected with pilot lamp (17), noise monitor (15) upper end and play water section casing (1) outer wall are hugged closely, and electric connection between noise monitor (15), insulated wire (16) and pilot lamp (17).

8. A multi-stage pump out section as claimed in claim 1, wherein: the water outlet section is characterized in that a hole groove (10) is formed in the inner side of the shell (1) of the water outlet section, the hole groove (10) is in a circular shape, an electric heating pipe (11) is arranged inside the hole groove (10), and the electric heating pipe (11) is in a circular shape.