CN219432130U - Volute casing with convenient connecting device - Google Patents

Abstract

The utility model belongs to the technical field of pumps, and particularly relates to a volute casing with a convenient connecting device, which comprises: the spiral shell body, the inflow bin and the convenient assembly are arranged, the shell body comprises an arc-shaped guard plate which is arranged separately, the inner outline and the outer outline of the guard plate are respectively connected into a lining and a shell, a diversion cavity is formed by surrounding the guard plate, the lining and the shell, and the convenient assembly comprises a plurality of outlet ends which extend along an arc line of the shell body and stop blocks which are connected with the outer sides of the outlet ends and used for preventing backflow; two sides of the inflow bin are symmetrically provided with a pair of inflow chambers, the centers of the two inflow chambers are provided with centrifugal impellers rotating in opposite directions at equal speed, the radial directions of the centrifugal impellers are provided with a plurality of blades, and the wheelbase of the centrifugal impellers and the specifications of the blades are correspondingly arranged. Through the centrifugal impeller that both ends set up the constant speed and abnormal direction, both ends blade reverse installation and dislocation relay promote to accomplish circulation water conservancy diversion, and the slide pulls the flange and realizes the convenient connection of the outer pumping part of exit end, synthesizes the effect of realizing taking convenient connecting device's spiral case body convenient drainage and stable connection.

Description

Volute casing with convenient connecting device

Technical Field

The utility model belongs to the technical field of pumps, and particularly relates to a volute with a convenient connecting device.

Background

The centrifugal pump is a machine for driving and improving the pressure of fluid, and has the characteristics of high-speed rotation, acceleration or redirection of the fluid by a centrifugal impeller, energy transfer and conversion process of converting kinetic energy into potential energy pressure, and wide application in various occasions due to the characteristics of large suction force, low noise and compact structure. The centrifugal pump generally comprises a volute and a centrifugal impeller, wherein the volute is provided with a flow inlet and a flow outlet, the centrifugal impeller rotates with fluid to generate centrifugal force, the fluid obtains kinetic energy along a flow channel to enter the volute at a high speed, the flow channel gradually widens to enable the fluid to be decelerated, and part of kinetic energy is converted into static pressure energy to flow to an air outlet.

The volute is a volute type diversion chamber for short, the structure type of the volute is closely related to the interface size of the matched equipment, the cross section of the diversion cavity of the volute is nearly circular, and the stress of the volute is closely related to local stress caused by different thicknesses and different strengths in the joint of the volute base and the longitudinal section of the volute except for internal pressure induced thin-wall stress; the fluid generates centrifugal force in the curved flow passage of the volute, the pressure difference is generated between the inner edge and the outer edge of the volute, the difference depends on the fluid speed and the abrupt change condition of the profile of the section, the average flow speed is proportional to the flow passing through the section, and the differential pressure value between the inner edge and the outer edge of the volute reflects the relative value of the flow passing through the fan.

The volute body with the convenient connection device is widely applied in various occasions such as split-flow according to sections, common water conservancy split-flow treatment of stream and reservoir dam areas, flood control and disaster relief in the agriculture and animal husbandry centralized jurisdiction water supply areas; the problems of speed reduction and diversification of the peripheral connection mode of the outlet end caused by flow division are solved, so that a convenient flow guiding and speed increasing and convenient and adjustable connection structure is needed, and the spiral case body with the convenient connection device is an important link.

In order to reduce or eliminate abnormal pressure fluctuation, an effective pressure stabilizing measure is to increase a device for improving the fluid speed and maintaining the system pressure on the basis of a pressure transmission system; because of the risk that pressure disturbance is caused by the change of topography, fluid pressure and outlet end environment and the accident that dust and dirt are invaded, measures are needed to precisely control the pressure and remove dust and impurities while the pressure of the fluid flow rate control system is improved.

The chinese patent of current bulletin number CN214887930U discloses evaporating pump machine, including spiral case front bezel, spiral case wind channel board, spiral case back plate, play tobacco flue connecting plate and play flue, spiral case front bezel is provided with into the tobacco flue, and spiral case front bezel, spiral case wind channel board, spiral case back plate enclose into and go out the tobacco flue, go out the tobacco flue connecting plate and go out the flue and lie in and go out the tobacco flue top, its characterized in that: the scroll air duct plate is provided with a plurality of scroll air duct plate extending parts at intervals on two sides contacted with the scroll front plate and the scroll rear plate, the scroll front plate is provided with a scroll front plate elongated hole matched with the scroll air duct plate extending part, the scroll rear plate is provided with a scroll rear plate elongated hole matched with the scroll air duct plate extending part, the scroll air duct plate extending part is fastened through a scroll front plate elongated Kong Shewan, and the scroll air duct plate extending part is fastened through a scroll rear plate elongated Kong Shewan. According to the utility model, by overcoming the welding defect, the oil smoke corrosion and aging attack are effectively overcome, so that the service life is prolonged, the structure is simple, and the manufacturing cost of the tooling die is reduced.

The prior art scheme has the following defects: although the problem of welding defects is solved by additionally arranging the volute air duct plate and the rear plate, the volute casing with the convenient connecting device is still lacking, and the problems of convenient drainage speed increasing and quick connection adjustment cannot be fundamentally solved.

Disclosure of Invention

The utility model aims to provide a volute body with a convenient connecting device, which meets the requirements of convenient drainage acceleration and quick connection adjustment and effectively ensures the convenient drainage and stable connection of the volute body with the convenient connecting device.

In order to solve the above technical problems, the present utility model provides a volute casing with a convenient connection device, including: the spiral shell comprises an arc-shaped guard plate with upper and lower ends separately arranged, and a liner and a shell with inner and outer contours respectively connected with the guard plate, wherein a diversion cavity is formed by surrounding the guard plate, the liner and the shell; the lower end of the inflow bin is communicated with the flow guide cavity through a hole cavity, a convenient assembly is arranged between the shell and the inflow bin, the convenient assembly comprises a plurality of outlet ends which extend along an arc line of the shell, and a backstop block used for preventing backflow is arranged outside the outlet ends.

Further, for promoting the structure of taking convenient connecting device's spiral case body to promote wrong looks relay and convenient water conservancy diversion, the bilateral symmetry of inflow storehouse upper end divides there is a pair of inflow room, both ends inflow room center is equipped with the centrifugal impeller that is used for the equidirectional rotation of constant speed, centrifugal impeller radially evenly is equipped with a plurality of blades, centrifugal impeller wheelbase with the blade specification corresponds the setting.

Further, for the structure that the spiral case body of taking convenient connecting device promotes convenient regulation and quick installation, convenient subassembly still includes a plurality of arc slide rails of installing on the casing, the laminating is equipped with the slide in the slide rail in order to follow its slip, slide slip direction with exit end extending direction keeps the coplanar.

Further, for the component that facilitates taking portable connecting device's spiral case body concurrently convenient connection and reliable installation, convenient subassembly still includes the flange that the slide is connected with, a plurality of mounting holes are used for convenient connection have evenly been seted up to the flange, the flange corresponds the exit end sets up.

Further, for promoting the structure that takes portable connecting device's spiral case body to combine convenient monitoring and reliable feedback, convenient subassembly still includes centrifugal impeller circumference with the stopping piece all is equipped with the pressure sensor that is used for detecting outward.

Further, for giving the framework of taking convenient connecting device's spiral case body to promote accurate action and convenient adjustment, convenient subassembly still includes the cylinder that the backstop piece lower extreme butt was had, the cylinder corresponds the pressure sensor is used for convenient traction the backstop piece.

Furthermore, in order to complete the functions of the volute body with the convenient connecting device, such as convenient diversion and stable diversion, a diversion port is sleeved between the inflow chamber and the centrifugal impeller, and a volute tongue for diversion and speed increasing is concavely arranged at the tail end of the diversion cavity.

Furthermore, in order to promote the stable shell device suitable for the fan to have a structure of flexible adjustment and dust removal and impurity removal, the retaining block is abutted with the slow release spring between the outlet ends, and the inlet chamber and a plurality of outlet ends are provided with filter screens at the ports.

Further, in order to meet the requirements of convenient diversion, speed up and stable driving of a stable shell device suitable for a fan, the centrifugal impeller is electrically connected with a waterproof motor, and the cylinder pipe is connected with a peripheral pump body.

Further, for perfecting the enabling of the worm shell body centralized control unified treatment with the convenient connecting device, the waterproof motor, the pressure sensor and the air cylinder are all electrically connected with the main control console.

The beneficial effects of the utility model are as follows:

1. the diversion of fluid is completed by narrowing the diversion port of the diversion port, the diversion chamber is additionally provided with a centrifugal impeller rotating in the same speed and in different directions, and the installation of the phase difference 60 is suggested but not limited ⁰ The 3 sets of blades are too many, the shape is small, the flow guiding quantity is too small, the accidental interference collision probability is increased, the too few blades are reduced in relay efficiency, the wheelbase of the centrifugal impeller is correspondingly arranged with the specifications of the blades, the blades at the two ends are reversely arranged, the constant-speed and different-direction rotation fluid is promoted to speed up again, the staggered-phase force arrangement avoids interference collision, and the volute tongue reliably pulls out the fluid to speed up and guide and reduce resistance; the sliding seat slides to draw the flange to meet the flexible adjustment and installation requirements, and split or three-split installation holes are uniformly distributed on the flange to facilitate flexible adjustment and installation; the pressure sensor accurately measures pressure and reliably feeds back, and the air cylinder pulls and pushes the backstop block to effectively adjust the drainage area according to the pressure condition, so that the requirements of convenient drainage acceleration and quick connection adjustment of the volute body with the convenient connection device are comprehensively met.

2. Through adding filter screen and promoting dust removal and remove miscellaneous, waterproof motor supplies with the kinetic energy of accelerating, and the steady energy supply is solved to the peripheral hardware pump body, and slow-release spring elasticity pretension and flexible adjustment realize buffering outlet end pressure variation or reply unexpected situation, and the multipart is connected the unified processing of centralized control of being convenient for, synthesizes the convenient drainage stable effect of connecting of spiral case body that realizes taking convenient connecting device.

In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

For a clearer description of embodiments of the utility model or of solutions in the prior art, the drawings that are required to be used in the description of the embodiments or of the prior art are briefly described below, it being obvious that the drawings in the description below are some embodiments of the utility model, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an elevation view of a volute casing with a portable attachment of the present utility model; (removal of the Inlet bin Screen)

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is an enlarged sectional view of fig. 1 in the direction B.

In the figure:

1. a housing; 11. a guard board; 12. a lining; 13. a housing; 14. a diversion cavity; 15. a volute tongue;

2. a flow inlet bin; 21. a flow inlet chamber; 22. a centrifugal impeller; 23. a blade; 24. a diversion port;

3. a convenient component; 31. an outlet end; 32. a stop block; 33. a slide rail; 34. a slide; 35. a flange; 36. a mounting hole; 37. a pressure sensor; 38. a cylinder; 39. a slow release spring;

4. a filter screen;

5. waterproof motor.

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 of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 and 2, the volute body with the convenient connection device of the present utility model comprises: the spiral shell casing 1 and the inflow bin 2 that spiral shell casing 1 top surface is connected with, casing 1 includes arc backplate 11 that upper and lower extreme set up separately and inside and outside profile of backplate 11 are connected with inside lining 12 and shell 13 respectively, backplate 11, inside lining 12 and shell 13 enclose and are equipped with water conservancy diversion chamber 14, inflow bin 2 lower extreme passes through the hole cavity and communicates water conservancy diversion chamber 14, be equipped with convenient subassembly 3 between casing 1 and inflow bin 2, convenient subassembly 3 includes that casing 2 extends a plurality of exit ends 31 that have along the pitch arc and exit end 3 outside are equipped with the backstop piece 32 that is used for stopping the backward flow. The upper end of the inflow bin 2 is symmetrically provided with a pair of inflow chambers 21 in a left-right symmetry way, the centers of the inflow chambers 21 at two ends are provided with centrifugal impellers 22 for constant-speed opposite rotation, the centrifugal impellers 22 are radially and uniformly provided with a plurality of blades 23, and the wheelbase of the centrifugal impellers 22 is correspondingly arranged with the specifications of the blades 23.

The portable assembly 3 further comprises a plurality of arc-shaped sliding rails 33 arranged on the shell 1, sliding seats 34 are arranged in the sliding rails 33 in an attached mode so as to slide along the sliding rails, and the sliding direction of the sliding seats 34 and the extending direction of the outlet end 31 are kept on the same plane. The convenient assembly 3 further comprises a flange 35 connected with the slide 34, a plurality of mounting holes 36 are uniformly formed in the flange 35 for convenient connection, and the flange 35 is arranged corresponding to the outlet end 31.

The portable assembly 3 further comprises a pressure sensor 37 for detection arranged on the periphery of the centrifugal impeller 22 and the outer side of the retaining block 32. The convenient assembly 3 further comprises a cylinder 38 abutted to the lower end of the backstop block 32, and the cylinder 38 is used for conveniently pulling the backstop block 32 corresponding to the pressure sensor 37. A flow guide port 24 is sleeved between the inlet chamber 21 and the centrifugal impeller 22; the tail end of the diversion cavity 14 is concavely provided with a volute tongue 15 for pulling and accelerating.

Obviously, in the embodiment, the diversion front speed of the fluid is finished by narrowing the diversion port 24, the centrifugal impeller 22 rotating at the same speed and in different directions is additionally arranged in the inflow chamber 21, the wheelbase of the centrifugal impeller 22 and the specification of the blades 23 are correspondingly arranged, the blades 23 at the two ends are reversely arranged and circularly promote the fluid to speed again in a staggered way, the interference collision is avoided by the misplaced force of the blades 23 at the two ends, and the volute tongue 15 reliably pulls out the fluid to speed up and conduct diversion and reduce resistance; the device comprises, but is not limited to, adding a sliding seat 34 to slide on a sliding rail to draw a flange 35 to meet the requirement of flexibly adjusting and installing the peripheral pumping part, and uniformly arranging split or three-split installation holes 36 on the flange 35 to meet the convenience and reliability of connection and installation of an outlet end 31; the pressure sensor 37 is used for precisely measuring pressure and reliably feeding back, and the pressure sensor 37 is used for pulling the stop block 32 to effectively adjust the flow guiding area of the outlet end 31 corresponding to the additionally arranged cylinder 38, so that the stop block 32 ensures that fluid can conveniently finish unidirectional flow, and the requirements of convenient drainage, acceleration and quick connection adjustment of the volute with the convenient connecting device are met.

As shown in fig. 1 and 2, a slow release spring 39 is abutted between the stop block 32 and the outlet end 31, and the inlet chamber 21 and the outlet ends 31 are provided with a filter screen 4. The centrifugal impeller 22 is electrically connected with a waterproof motor 5, and a cylinder 38 is connected with an external pump body through a pipe. The waterproof motor 5, the pressure sensor 37 and the air cylinder 38 are all electrically connected with the main control console.

More specifically, in this embodiment, the slow release spring 39 is additionally arranged to flexibly adjust the buffer pressure or prevent accidents, the waterproof motor 5 provides the flow guiding and accelerating kinetic energy, the filter screen 4 promotes dust removal and impurity removal, the multi-component connection master control station promotes centralized control and unified treatment, and the effects of safety, reliability, stability and durability of the volute body with the convenient connection device are comprehensively realized.

In summary, the volute body with the convenient connection device is additionally provided with the diversion port 24 to promote the fluid diversion to be accelerated, the wheelbase between the centrifugal impellers 22 and the specifications of the blades 23 are correspondingly arranged, the blades 23 at two ends are reversely installed and rotated at the same speed and in different directions to realize the circulation diversion and the acceleration, the misplaced force of the blades 23 is convenient for avoiding collision, and the volute tongue 15 reliably pulls out the flow to promote the fluid to be accelerated; the sliding seat 34 slides in the sliding rail 33 to draw the flange 35 so as to realize flexible adjustment and installation, and the flange 35 is uniformly provided with the mounting holes 36, so that the peripheral pumping parts can be conveniently and reliably connected and installed; the pressure sensor 37 is used for precisely measuring pressure and reliably feeding back, the air cylinder 38 is used for referencing the measured value of the pressure sensor 37 to pull the stop block 32 to finish adjusting the flow guiding area of the outlet end 31, the stop block 32 is beneficial to guaranteeing unidirectional flow of fluid, the slow release spring 39 is used for flexibly adjusting buffer pressure, the waterproof motor 5 is used for providing flow guiding and speed increasing kinetic energy, the filter screen 4 is convenient for dedusting and removing impurities, the multi-component connection master control console is beneficial to centralized control and unified treatment, and therefore the effect of convenient and stable flow guiding and connection of the volute body with the convenient connection device is comprehensively achieved.

In the description of embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of the present utility model, it should be noted that the directions or relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are directions or relationships based on the drawings, are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of the claims.

Claims (10)

1. A volute casing with a convenient connection device, comprising:

the spiral shell (1) and the inflow bin (2) connected with the top surface of the spiral shell (1);

the shell (1) comprises an arc-shaped guard plate (11) which is arranged at the upper end and the lower end, and a lining (12) and a shell (13) which are respectively connected with the inner outline and the outer outline of the guard plate (11);

the guard plate (11), the lining (12) and the shell (13) are surrounded by a diversion cavity (14);

the lower end of the inflow bin (2) is communicated with the diversion cavity (14) through a hole cavity;

a convenient assembly (3) is arranged between the shell (1) and the inflow bin (2);

the convenient assembly (3) comprises a plurality of outlet ends (31) which extend along an arc line of the shell (1) and a backstop block (32) for preventing backflow is arranged on the outer side of the outlet ends (31).

2. The volute casing with the portable connecting device according to claim 1, wherein,

a pair of inflow chambers (21) are symmetrically arranged at the left and right of the upper end of the inflow bin (2);

the centers of the inflow chambers (21) at the two ends are provided with centrifugal impellers (22) for constant-speed opposite rotation;

a plurality of blades (23) are uniformly arranged on the centrifugal impeller (22) in the radial direction;

the wheelbase of the centrifugal impeller (22) and the specification of the blades (23) are correspondingly arranged.

3. The volute casing with the portable connecting device according to claim 1, wherein,

the portable component (3) further comprises a plurality of arc-shaped sliding rails (33) arranged on the shell (1);

a sliding seat (34) is adhered in the sliding rail (33) so as to slide along the sliding seat;

the sliding direction of the sliding seat (34) and the extending direction of the outlet end (31) keep the same plane.

4. A volute casing with a portable connection device according to claim 3,

the portable assembly (3) further comprises a flange (35) connected with the sliding seat (34);

the flange (35) is uniformly provided with a plurality of mounting holes (36) for convenient connection;

the flange (35) is arranged corresponding to the outlet end (31).

5. The volute casing with the portable connecting device according to claim 2, wherein,

the convenient assembly (3) further comprises a centrifugal impeller (22) and a pressure sensor (37) for detection is arranged on the circumference of the centrifugal impeller and the outer side of the retaining block (32).

6. A volute with a portable attachment as defined in claim 5, wherein,

the convenient assembly (3) further comprises a cylinder (38) which is abutted with the lower end of the stop block (32);

the cylinder (38) is used for conveniently pulling the backstop block (32) corresponding to the pressure sensor (37).

7. The volute casing with the portable connecting device according to claim 2, wherein,

a diversion port (24) is sleeved between the inflow chamber (21) and the centrifugal impeller (22);

the tail end of the flow guiding cavity (14) is concavely provided with a volute tongue (15) for pulling and accelerating flow.

8. The volute casing with the portable connecting device according to claim 1, wherein,

a slow release spring (39) is abutted between the stop block (32) and the outlet end (31);

the inlet bin (2) and the outlet ends (31) are provided with filter screens (4).

9. The volute casing with the portable connecting device according to claim 6, wherein,

the centrifugal impeller (22) is electrically connected with a waterproof motor (5);

the cylinder (38) is connected with an external pump body through a pipe.

10. The volute casing with the portable connecting device according to claim 9, wherein,

the waterproof motor (5), the pressure sensor (37) and the air cylinder (38) are all electrically connected with the main control console.