CN211692845U

CN211692845U - Fire control vacuum diversion device

Info

Publication number: CN211692845U
Application number: CN202020067710.7U
Authority: CN
Inventors: 黄成云
Original assignee: Jiangxi Ruikang Water Supply Equipment Co Ltd
Current assignee: Jiangxi Ruikang Water Supply Equipment Co Ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-10-16
Anticipated expiration: 2030-01-14

Abstract

The utility model discloses a fire control vacuum diversion device, concretely relates to vacuum diversion field, including a jar body, the top surface of jar body is connected with leading water pipeline, blast pipe, inlet tube, and high-power motor is installed to one side bottom of jar body, and the vacuum pump chamber is installed to the bottom of jar internal chamber, and the impeller is installed in the inside rotation of vacuum pump chamber, and the pump mouth of a river has been seted up to the top surface of vacuum pump chamber, and one side of vacuum pump chamber is connected with the outlet pipe, and the end connection of outlet pipe has the catch water, and one side of blast pipe is connected with the pipe and is connected. The utility model discloses an integrated structure design, with traditional vacuum pump and the diversion jar body combine together, saved erectting of a large amount of pipelines, save installation cost, and its connection structure of the pipeline structure of simplifying is showing and is reducing stability and promoting greatly, can be adapted to the repacking of large capacity high lift that the fire control supplied water, adapts to the needs that high low-rise building fire control supplied water, improves the practicality of this diversion device.

Description

Fire control vacuum diversion device

Technical Field

The utility model relates to a vacuum diversion technical field, more specifically says, the utility model specifically is a fire control vacuum diversion device.

Background

The vacuum water diversion device is a irrigation and diversion device and is often used in the situation that the water diversion point is lower than the position of a water diversion pump. Before use, the water tank is filled with water, the water pump continuously pumps out the water in the tank to form vacuum, and the water pipe continuously pumps the water in the water pool into the tank to fill the vacuum, and the process is repeated.

The water drawn into the tank body from the water pool carries certain air, and in the long-term operation process of the vacuum water diversion device, the air is accumulated at the top of the tank body, so that the vacuum degree in the tank body is reduced, and the water diversion efficiency of the water diversion device is influenced finally.

In order to solve the above problem, patent application publication No. CN204003492U discloses a vacuum water diversion device, which refers to fig. 5 of the specification, and in this application, an exhaust pipe is arranged between the top of a tank body and an outlet pipe, so that air accumulated at the top of a water storage cavity can be exhausted in time, the interior of the tank body is kept vacuum all the time, and the water diversion efficiency of the vacuum water diversion device is ensured.

However, the technical scheme still has more defects in actual application;

the vacuum water diversion device adopts a common centrifugal pump as a water diversion driving mechanism, the centrifugal pump is an external mechanism, and a plurality of pipelines are connected, so that the common pump body has small lift and is obviously not suitable for the water diversion of some high-rise buildings due to the fact that a water body needs to be conveyed to a high height during fire fighting water diversion, and the pipelines cannot bear the pressure of high-pressure water flow, so that large-lift refitting cannot be carried out;

secondly, because the vacuum water diversion device is not provided with a cavitation-resistant protection component, cavitation generates a large amount of bubbles to block a flow channel and destroy the continuous flow of liquid in the pump, so that the flow rate, the lift and the efficiency of the pump are obviously reduced, metal materials are destroyed due to the action of mechanical ablation and electrochemical corrosion, the parts usually destroyed by cavitation are mostly near the outlet of an impeller and the inlet of a liquid discharge chamber, and at the initial stage of cavitation, pits appear on the surface of the metal, and then the surface of the metal material presents the marks of sponginess, groove-shaped, honeycomb-shaped, fish scale-shaped and the like; in severe cases, the blade or the front and rear cover plates can be perforated, even the impeller can be broken, and serious accidents can happen.

Therefore, it is highly desirable to provide a fire-fighting vacuum diversion device with large-lift pumping and anti-cavitation.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the embodiment of the utility model provides a fire-fighting vacuum diversion device, which is characterized in that a traditional vacuum pump is combined with a diversion tank body through an integrated structure design, so that the erection of a large number of pipelines is omitted, the installation cost is saved, the connection structure of a simplified pipeline structure is obviously reduced, the stability is greatly improved, the device can be adapted to the large-capacity high-lift modification of fire-fighting water supply, the requirements of high-rise and low-rise building fire-fighting water supply are adapted, and the practicability of the diversion device is improved; additionally, the utility model discloses a set up bottom pumping mechanism and steam-water separation mechanism, water bottom bubble content is less can effectively prevent that the cavitation effect of impeller from improving impeller life, and the catch water that adds can effectively eliminate in the runner pipe and the internal liquid stream bubble of jar, prevents to cause irreversible structural damage to this diversion device and takes place the incident, and protection device's structural strength improves its life to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a fire-fighting vacuum diversion device comprises a tank body, wherein a diversion pipeline, an exhaust pipe and a water inlet pipe are fixedly connected to the top surface of the tank body, support legs are fixedly installed at the bottom end of the tank body, a high-power motor is fixedly installed at the bottom end of one side of the tank body, a vacuum pump cavity is fixedly installed at the bottom end of an inner cavity of the tank body, an impeller is rotatably installed inside the vacuum pump cavity, a pump water inlet is formed in the top surface of the vacuum pump cavity, the vacuum pump cavity is communicated with the inner cavity of the tank body through the pump water inlet, a transmission case is fixedly connected to the output end of the high-power motor, the output end of the transmission case penetrates through the bottom surface of the tank body and is fixedly connected with the impeller, a water outlet pipe is fixedly connected to one side of the vacuum pump, the other end of the guide pipe is fixedly connected with the input end of the steam-water separator.

In a preferred embodiment, one end of the water conduit penetrates through the top surface of the tank body and is communicated with the inside of the tank body, the end part of the water conduit is positioned on the top surface of the inner cavity of the tank body, and the other end of the water conduit is fixedly connected with a water source.

In a preferred embodiment, the tank body is a stainless steel component, the vacuum valve is arranged in the middle of the exhaust pipe and the water inlet pipe, and the tank body is in a sealed tank body structure.

In a preferred embodiment, the inner wall of the vacuum pump cavity is of a smooth surface structure, the corner welding position of the inner wall of the vacuum pump cavity is of an arc-shaped chamfer angle structure, and the welding position of the tank body is in smooth transition.

In a preferred embodiment, a plurality of guide holes are formed in the pump nozzle and are densely distributed, the surfaces of the guide holes are hardened, and the top ends and the bottom ends of the guide holes are of an outward-expanding structure.

In a preferred embodiment, a plurality of blades are arranged inside the impeller, one ends of the blades are of a water-drop blunt structure, the impeller and the blades are of an integrated milling and forming structure, the impeller and the blades are constructed by austenitic steel materials, and castings of the impeller and the blades are subjected to internal stress elimination treatment and austenitic stainless steel is subjected to solutionizing treatment.

In a preferred embodiment, the impeller is subjected to a static balance test with an unbalanced weight tolerance of less than 3g, the impeller is cut at its top surface with a depth of cut of less than 1.5 mm.

The utility model discloses a technological effect and advantage:

1. the utility model has the advantages that through the integrated structure design, the traditional vacuum pump is combined with the diversion tank body, the erection of a large number of pipelines is saved, the installation cost is saved, the connection structure of the simplified pipeline structure is obviously reduced, the stability is greatly improved, the pipeline structure can be adapted to the large-capacity high-lift refitting of fire-fighting water supply, the requirement of the fire-fighting water supply of high and low buildings is adapted, and the practicability of the diversion device is improved;

2. the utility model discloses a set up bottom pumping mechanism and steam-water separation mechanism, water bottom bubble content is less can effectively prevent that the cavitation effect of impeller from improving impeller life, and the catch water ware of addding can effectively eliminate in the runner pipe and the internal liquid stream bubble of jar, prevents to cause irreversible structural damage to take place the incident to this diversion device, and protection device's structural strength improves its life.

Drawings

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

Fig. 2 is a schematic diagram of the internal structure of the tank of the present invention.

Fig. 3 is a schematic structural diagram of fig. 2A of the present invention.

Fig. 4 is a schematic view of the impeller structure of the present invention.

Fig. 5 is a schematic diagram of a comparison file structure of the present invention.

The reference signs are: 1. a tank body; 2. a high power motor; 3. a support leg; 4. a transmission case; 5. a water conduit; 6. an exhaust pipe; 7. a conduit; 8. a water inlet pipe; 9. a steam-water separator; 10. a water outlet pipe; 11. a vacuum pump chamber; 12. a pump nozzle; 121. a flow guide hole; 13. an impeller; 131. a blade.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The fire-fighting vacuum water diversion device shown in the attached figures 1-4 comprises a tank body 1, a water diversion pipeline 5, an exhaust pipe 6 and a water inlet pipe 8 are fixedly connected to the top surface of the tank body 1, support legs 3 are fixedly installed at the bottom end of the tank body 1, a high-power motor 2 is fixedly installed at the bottom end of one side of the tank body 1, a vacuum pump cavity 11 is fixedly installed at the bottom end of an inner cavity of the tank body 1, an impeller 13 is rotatably installed inside the vacuum pump cavity 11, a pump water gap 12 is formed in the top surface of the vacuum pump cavity 11, the vacuum pump cavity 11 is communicated with the inner cavity of the tank body 1 through the pump water gap 12, a transmission case 4 is fixedly connected to the output end of the high-power motor 2, the output end of the transmission case 4 penetrates through the bottom surface of the tank body 1 and is fixedly connected with the, one side of the exhaust pipe 6 is fixedly connected with a guide pipe 7, and the other end of the guide pipe 7 is fixedly connected with the input end of a steam-water separator 9.

The implementation mode is specifically as follows: through the integrated structure design, the traditional vacuum pump is combined with the diversion tank body 1, so that the erection of a large number of pipelines is omitted, the installation cost is saved, the connection structure of the simplified pipeline structure is obviously reduced, the stability is greatly improved, the simplified pipeline structure can be suitable for large-capacity high-lift modification of fire-fighting water supply, the requirement of fire-fighting water supply of high and low buildings is met, and the practicability of the diversion device is improved; additionally, the utility model discloses a set up bottom pumping mechanism and steam-water separation mechanism, water bottom bubble content is less can effectively prevent that impeller 13's cavitation effect from improving impeller 13 life, and the catch water that adds can effectively eliminate in the runner pipe and the internal liquid stream bubble of jar, prevents to cause irreversible structural damage to this diversion device and takes place the incident, and protection device's structural strength improves its life.

Wherein, the one end of diversion conduit 5 runs through the top surface of jar body 1 and is linked together with the inside of jar body 1, and the tip of diversion conduit 5 is located the top surface of jar body 1 inner chamber, and the other end fixedly connected with water source of diversion conduit 5 realizes the basic function of diversion.

Wherein, jar body 1 is stainless steel component, and the middle part of blast pipe 6, inlet tube 8 is provided with the vacuum valve, and jar body 1 is sealed jar body structure, thereby utilizes sealed jar body structure to produce the negative pressure and carry out the diversion.

Wherein, the inner wall of the vacuum pump cavity 11 is of a smooth surface structure, the corner welding part of the inner wall of the vacuum pump cavity 11 is of an arc-shaped chamfer structure, and the welding part of the tank body 1 is in smooth transition, so that the inner wall of the vacuum pump cavity 11 is prevented from cavitation.

The pump nozzle 12 is provided with a plurality of guide holes 121 in an intensive distribution, the surfaces of the guide holes 121 are hardened, the top ends and the bottom ends of the guide holes 121 are of outward-expanding structures, and the long straight guide holes 121 are used for preventing bubbles from entering the vacuum pump cavity 11 and reducing cavitation in the vacuum pump cavity 11.

The impeller 13 and the blades 131 are of an integrally milling structure, the impeller 13 and the blades 131 are made of austenitic steel, castings of the impeller 13 and the blades 131 are made of austenitic stainless steel for internal stress elimination treatment and are subjected to solutionizing treatment, structural rigidity of the impeller 13 is enhanced, and cavitation of the impeller 13 is prevented.

Wherein, impeller 13 is done the static balance test, and its unbalanced weight tolerance is less than 3g, and the top surface department cutting of impeller 13 is less than 1.5mm for impeller 13 structure is more stable, improves its life, reduces the bad vibrations of during operation.

The utility model discloses the theory of operation:

firstly, one end of a water conduit 5 is led into water, the water conduit can be used after being filled with water into a tank body 1 through a water inlet pipe 8, a high-power motor 2 is started to drive an impeller 13 to rotate at a high speed through a transmission case 4, water in the tank body 1 enters a vacuum pump cavity 11 through a pump water inlet 12 and is pumped into a steam-water separator 9 by the impeller 13 to be subjected to steam-water separation, then fire-fighting water supply is carried out through a water outlet at one side of the steam-water separator 9, most of bubbles in the water are eliminated due to the vertical guiding of a flow guide hole 121 when the water flows into the vacuum pump cavity 11 through the pump water inlet 12, the service life of the impeller 13 is prolonged by preventing the cavitation effect of the impeller 13, the added steam-water separator can effectively eliminate liquid flow bubbles in the flow conduit and the tank body 1, the water conduit is prevented from causing, the service life of the device is prolonged.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a fire control vacuum diversion device, includes a jar body (1), the top surface fixedly connected with leading water pipeline (5), blast pipe (6), inlet tube (8) of jar body (1), the bottom fixed mounting of the jar body (1) has stabilizer blade (3), its characterized in that: the high-power vacuum pump is characterized in that a high-power motor (2) is fixedly mounted at the bottom end of one side of the tank body (1), a vacuum pump cavity (11) is fixedly mounted at the bottom end of an inner cavity of the tank body (1), an impeller (13) is mounted in the vacuum pump cavity (11) in a rotating mode, a pump water inlet (12) is formed in the top surface of the vacuum pump cavity (11), the vacuum pump cavity (11) is communicated with the inner cavity of the tank body (1) through the pump water inlet (12), a transmission case (4) is fixedly connected to the output end of the high-power motor (2), the output end of the transmission case (4) penetrates through the bottom surface of the tank body (1) and is fixedly connected with the impeller (13), a water outlet pipe (10) is fixedly connected to one side of the vacuum pump cavity (11), a steam-water separator (9) is fixedly connected to the end of the water outlet, the other end of the conduit (7) is fixedly connected with the input end of the steam-water separator (9).

2. The fire-fighting vacuum water diversion device according to claim 1, characterized in that: the top surface that the one end of diversion conduit (5) runs through jar body (1) is linked together with the inside of jar body (1), the tip of diversion conduit (5) is located the top surface of jar body (1) inner chamber, the other end fixedly connected with water source of diversion conduit (5).

3. The fire-fighting vacuum water diversion device according to claim 1, characterized in that: the tank body (1) is a stainless steel component, the middle parts of the exhaust pipe (6) and the water inlet pipe (8) are provided with vacuum valves, and the tank body (1) is of a sealed tank body structure.

4. The fire-fighting vacuum water diversion device according to claim 1, characterized in that: the inner wall of the vacuum pump cavity (11) is of a smooth surface structure, the corner welding position of the inner wall of the vacuum pump cavity (11) is of an arc-shaped chamfer angle structure, and the welding position of the tank body (1) is in smooth transition.

5. The fire-fighting vacuum water diversion device according to claim 1, characterized in that: the pump water gap (12) is internally provided with a plurality of guide holes (121) which are densely distributed, the surfaces of the guide holes (121) are hardened, and the top ends and the bottom ends of the guide holes (121) are of outward-expanding structures.

6. The fire-fighting vacuum water diversion device according to claim 1, characterized in that: the inside of impeller (13) is equipped with a plurality of blades (131), the one end of blade (131) is the blunt structure of water droplet type, impeller (13), blade (131) mill the shaping structure as an organic whole, impeller (13), blade (131) establish for the austenitic steel material, the foundry goods of impeller (13), blade (131) are done and are eliminated the internal stress and handle austenitic stainless steel and do the solutionizing processing.

7. The fire-fighting vacuum water diversion device according to claim 1, characterized in that: the impeller (13) is subjected to static balance test, the unbalanced weight tolerance is less than 3g, the top surface of the impeller (13) is cut, and the cutting depth is less than 1.5 mm.