WO2018097760A1

WO2018097760A1 - Modular pump assembly and pump module for use therein

Info

Publication number: WO2018097760A1
Application number: PCT/RU2017/000854
Authority: WO
Inventors: Антон Валерьевич СЕЛЮТИН
Original assignee: Антон Валерьевич СЕЛЮТИН
Priority date: 2016-11-22
Filing date: 2017-11-16
Publication date: 2018-05-31
Also published as: RU2629348C1

Abstract

The group of inventions relates to modular pump assemblies and can be used for pumping large volumes of fluid using at least one pump module. Both the claimed pump assembly and the claimed pump module can be incorporated into mobile firefighting stations. A modular pump assembly comprises at least one pump module, each of which comprises a frame 1 and, mounted therein, an electric motor, a reduction gear, and a pump for pumping fluid. The frame 1 of each pump module is designed so that at least one other pump module can be detachably connected to the frame 1. The invention is directed toward: providing a broader scope of use by increasing the options for the spatial configuration of modular pump assemblies with pumps so that they can be compactly housed in small and narrow rooms or in low-volume containers in the event of transportation; simplifying the process of regulating the capacity of a pump assembly by adjusting the number of connected modules; and enhancing the structural integrity of the pump assembly and its resistance to vibrations.

Description

MODULAR PUMP UNIT AND PUMP MODULE FOR USE IN IT

FIELD OF TECHNOLOGY

The group of inventions relates to modular pumping units and can be used for pumping large volumes of liquid, using at least one pumping module. Both the pumping unit and the pumping module can be part of mobile fire extinguishing stations.

BACKGROUND OF THE INVENTION

Known modular diesel pump station according to patent RU 150412

(publ. 02.20.2015, Bull. N ° 5) containing a frame, an additional frame, pumps and a block container.

The main disadvantage of this modular diesel pumping station is the design of the block container, which does not allow the installation of several pumping stations or pumps in a common system that works together as a single unit. In addition, the modular diesel pump station has low strength, because its frame does not provide sufficient protection of the installation against shock and acceleration during its operation or transportation.

A device for pumping large volumes of fluid according to patent US 6773238 (publ. 18.01.2001), having at least two pumps, jointly connected to the pressure line and connected by one drive. In addition, the device contains a single module formed by a frame.

The disadvantage of this technical solution is the low variety of configurations of the location of the pumps, because in the device, several pumps are located in one horizontal plane and are combined by one drive. Vibration reduction occurs only in the pump installation area, as its reduction is due to the coordination of the pulsation of the pumps connected by one drive. The prototype of the claimed invention is a modular pump distribution device according to patent US 5480288 (publ. 02.01.1996), containing several drive pumps in modular cabinets (modules), which can be connected to each other in different directions.

This design of the modular pumping device also does not provide the necessary protection of the pumps against vibration loads, because the presence of sheet metal panels on the side surfaces of the device does not protect it from multiple impacts and accelerations. In addition, the modular pumping device also includes pumps in pairs connected to one drive, as a result of which the design has fewer pump configurations.

SUMMARY OF THE INVENTION

The technical result consists in expanding the scope by increasing the spatial layout of modular pumping units with pumps in order to compactly place them in small and narrow rooms or when transporting in containers with small volume, as well as to simplify the process of regulating the performance of the pumping unit by changing the number connected modules while increasing the strength of the design of the pumping unit and its resistance to vibration.

The technical result in terms of a modular pumping unit is achieved due to the fact that it contains at least one pumping module, each of which includes a frame and an electric motor, a gearbox and a pump for pumping liquids installed in it, and the frame of each pumping module is removable with a frame of at least one of the same pump module.

The technical result in terms of the pump module for use in a modular pumping unit is achieved due to the fact that it includes a frame and installed in it an electric motor, gearbox and pump for pumping liquid, and the frame is made with the possibility of detachable connection with the frame of at least one of the same pump module.

The options are:

- the frame is a spatial structure in the form of a rectangular parallelepiped of stiffeners rigidly connected to each other;

- the frame contains a horizontal base and vertical racks mounted on it, interconnected;

- the frame is equipped with additional stiffening ribs;

- stiffeners are made of metal elements of any profile;

- mounting holes are formed in the frame;

the modular pump unit is equipped with a common inlet pipe to which a pump is connected for pumping the liquid of each pump module;

the modular pump unit is equipped with a common outlet pipe to which a pump is connected for pumping the liquid of each pump module;

- the modular pumping unit is equipped with at least one box of electrical connectors;

- the modular pumping unit is equipped with at least one measuring device;

- each pump module is equipped with at least one pressure relief and pressure control valve.

Thus, due to the presence of the frame, the installation of the pump module elements and the implementation of the frame with the possibility of detachable connection with the frame of at least one of the same pump module, the scope is expanded due to the possibility of increasing the spatial layout of the modular pumping units with pumps for their compact accommodation in small and narrow rooms or when transporting in containers with a small volume. The proposed design allows you to optimally use the space to accommodate the pump unit due to the possibility of creating a collapsible multi-level design, connecting pump modules both horizontally and vertically depending on the configuration of the pump for pumping liquid and in the amount determined by the required volume of liquid required for pumping. Moreover, due to the possibility of changing the number of connected modules, a simplification of the process of regulating the performance of the entire pumping unit is achieved. As a result of operation, the modular pump unit can be subjected to various types of static and dynamic effects in the form of loads, vibrations, shock and acceleration. Therefore, simultaneously with the indicated results, the strength of the design of the pumping unit and its resistance to vibration are increased by reducing the effects of vibration and shock on the pumps installed inside the modules and protecting the elements from mechanical stress created, for example, during transportation.

BRIEF DESCRIPTION OF THE DRAWINGS

In FIG. 1 shows a modular pumping unit, in particular consisting of four pumping modules, in a three-quarter view. In FIG. 2 is a top view of a pump module with vertical posts and upper base removed. In FIG. 3 shows a frame; FIG. 4 - the base of the frame.

In the figures indicated:

1 - frame;

1.1 - lower base;

1.2 - the upper base;

1.3 - vertical racks;

2 - electric motor;

3 - gear; 4 - pump for pumping liquid;

5 - mounting holes for equipment;

6 - fixing ^' holes for connection with the frames of other pump modules;

7 - common inlet pipeline;

8 - common outlet pipeline;

9 - additional booster pump;

10 - additional pump;

1 1 - the base of the additional pump.

DETAILED DESCRIPTION OF THE INVENTION

The modular pump unit (Fig. 1, 2) contains at least one pump module (in the presented embodiment, the layout and connection of four pump modules is shown), each of which includes a frame 1 and an electric motor 2, a gearbox 3 and a pump 4 for it pumping liquids (oil, water, glycol, antifreeze, etc.), and the frame 1 of each pump module is made with the possibility of detachable connection with the frame 1 of at least one of the same pump module.

The number of pump modules can be from one to a theoretically infinite number. In practice, the number of modules is determined by the volume of fluid required for pumping.

Frame 1 (Fig. 3) is, for example, a spatial structure in the form of a rectangular parallelepiped made of rigidly connected to each other by welding stiffeners forming a frame. In this case, the frame 1 may contain upper and lower horizontal bases 1.1 and 1.2 (Fig. 4), formed from intersecting stiffeners, and installed between them on the lower base 1.1 vertical racks 1.3, interconnected. Moreover, the upper base 1.2 may not be, vertical racks 1.3 are connected between by itself in the middle part, and the frame of the other pump module is installed directly on the vertical posts 1.3.

Vertical racks 1.3 can be installed on the base 1.1 both in the corners and in the middle part, separable or collapsible with the help of additional detachable joints.

In addition, the frame 1 can be equipped with additional stiffeners, located at an angle to the main ribs and provide additional structural rigidity.

All stiffeners are made of metal elements of any profile, for example, U-shaped, round, tee, rectangular section, etc. Stiffeners can be hollow and solid and are equipped with reinforcing elements.

Fixing holes 5 can be formed in the frame 1, intended for fixing in the frame 1 the electric motor 2, the gearbox 3 and the pump 4 with the help of fasteners and located, for example, on the lower horizontal base 1.1. Fixing holes 6 can be formed in the frame 1, intended for fastening on the frame 1 of the frame of another same pump module with fasteners and located around the perimeter of the bases 1 L and 1.2. In this case, the frames 1 of the pump modules can be fastened together using other fastening devices, for example, clamps, clamps, etc., which provide collapsible reliable fastening of the frames.

The frames 1 of the pump modules can be interconnected in a horizontal and / or vertical plane, as well as perpendicularly, depending on the space allotted for installation of the unit.

The geometry of the spatial frame 1 and its bases 1.1 and 1.2, reinforced by angular joints made of profiled steel, forming a triangular cellular structure, ensures the reliability of the design of the modular pumping unit when it is subjected to sinusoidal vibrations from 0 to 120 Hz and single shock loads up to 200 G. The internal size of the frame 1 is made suitable for placing an electric motor 2, a gearbox 3 and a pump 4 in it.

Pumps 4 can be mounted on frame 1 using support legs.

The modular pump unit can be equipped with a common inlet pipe 7, to which a pump 4 is connected for pumping the liquid of each pump module with its low pressure line (s).

The modular pump unit can be equipped with a common outlet pipe 8, to which a pump 4 is connected for pumping the liquid of each pump module with its high pressure line (s).

The common inlet and common outlet pipelines 7 and 8 can be oriented in one or in different directions.

However, the pumps 4 can each be connected directly to the fluid supply and discharge system, without common piping.

All piping of the pump unit can be fixed on the frame 1. In addition, brackets for the main and auxiliary equipment of the unit and modules can be fixed on the frame 1.

The modular pump unit and each pump module can be equipped with at least one box of electrical connectors and at least one measuring device, which can be mounted on any of the frames 1. As measuring devices, pressure sensors, flow sensors, level sensors, fire detection.

Each pump module can be equipped with at least one pressure relief and pressure control valve.

The frame 1 of the pump module can be configured to install an additional booster pump 9 (with an electric motor and gearbox) or pumps 10 (with electric motors and gearboxes) with the same capacity as the pumps 4, installed inside the pump modules, or lower performance. Pumps 10 can be installed on the base 11, compatible with the base 1.2 of the pump modules.

Each pump module is designed in such a way that they can be easily connected to a single modular pump unit, while providing access to the inspection windows and drain plugs of all pumps of the modular pump unit. In addition, the modular pump unit with a different layout of the pump modules ensures its serviceability from different sides, as well as the removability of its components without disassembling the pump unit.

The pump module can be used as part of a modular pumping unit, or separately.

The unit must be fixed to the foundation (floor) before starting operation.

The inventive pump unit is used as follows.

One or more pump modules are assembled into a pump unit, installing them one on top of the other, placing them side by side or spreading them apart at a certain distance. In this case, the modules are combined by means of simultaneous connection (if any) into one inlet pipe 7 and one outlet pipe 8, which enables the simultaneous supply of the pumped liquid by all pump modules. In this case, the task of both a separate module and all of them together is to raise the liquid pressure at the outlet manifold to a predetermined level. In this case, the principle of serial and / or parallel hydraulic connection of pump modules is applied depending on the pressure drop in the discharge pipe, caused by the instantaneous fixed fluid flow rate. The connection of each subsequent pump module to the overall operation of the pumping unit is carried out by one or more control panels receiving single or complex electrical commands from manual or remote or automated controls (which include pressure sensors, flow sensors, start buttons, level sensors, signals from fire detection systems).

In case of failure of one or several pumps / motors of a modular pump unit, it is possible to change the pump connection diagram, excluding the idle pump or pumps from the connection sequence, which in general can affect the performance of the pump unit, but will not cause it to stop.

Claims

CLAIM

1. A modular pumping unit containing at least one pumping module, each of which includes a frame and an electric motor, gearbox and pump for pumping liquid, installed in it, and the frame of each pumping module is made with the possibility of detachable connection with the frame of at least one of the same pump module.

2. The modular pumping unit according to claim 1, characterized in that the frame is a spatial structure in the form of a rectangular parallelepiped of stiffeners rigidly connected to each other.

3. The modular pumping unit according to claim 2, characterized in that the frame comprises a horizontal base and vertical posts mounted thereon interconnected.

4. The modular pumping unit according to claim 3, characterized in that the frame is equipped with additional stiffening ribs.

5. The modular pump unit according to paragraphs. 2-4, characterized in that the stiffeners are made of metal elements of any profile.

6. The modular pumping unit according to claim 1, characterized in that mounting holes are formed in the frame.

7. The modular pumping unit according to claim 1, characterized in that it is equipped with a common inlet pipe to which a pump is connected for pumping liquid of each pumping module.

8. The modular pumping unit according to claim 1, characterized in that it is equipped with a common outlet pipe to which a pump is connected for pumping liquid of each pump module.

9. The modular pumping unit according to claim 1, characterized in that it is equipped with at least one box of electrical connectors.

10. The modular pumping unit according to claim 1, characterized in that it is equipped with at least one measuring device.

1 1. The modular pumping unit according to claim 1, characterized in that each pumping unit is equipped with at least one pressure relief and pressure control valve.

12. A pump module for use in a modular pumping unit, comprising a frame and an electric motor, a gearbox and a pump for pumping liquid, installed therein, the frame being detachably connected to the frame of at least one of the same pumping module.

13. The pump module according to claim 12, characterized in that the frame is a spatial structure in the form of a rectangular parallelepiped of stiffening ribs rigidly connected to each other.

14. The pump module according to claim 13, characterized in that the frame comprises a horizontal base and vertical posts mounted thereon interconnected.

15. The pump module according to claim 14, characterized in that the frame is provided with additional stiffening ribs.

16. The pump module according to paragraphs. 13-15, characterized in that the stiffeners are made of metal elements of any profile.

17. The pump module according to claim 12, characterized in that mounting holes are formed in the frame.

18. The pump module according to p. 12, characterized in that the pump for pumping liquid is configured to connect to a common inlet pipe of a modular pumping unit.

19. The pump module according to p. 12, characterized in that the pump for pumping liquid is configured to connect to a common outlet pipe of a modular pumping unit.

20. The pump module according to p. 12, characterized in that it is equipped with at least one box of electrical connectors.

21. The pump module according to p. 12, characterized in that it is equipped with at least one measuring device.

22. The pump module according to p. 12, characterized in that it is equipped with at least one pressure relief and pressure control valve.