CN219197598U - Novel volumetric pump - Google Patents

Abstract

The utility model discloses a novel volumetric pump, which comprises a slurry inlet pipe; at least 1 pulp inlet check valve boxes are arranged on the pulp inlet pipe; the upper part of the slurry inlet check valve box is connected with a tee joint; the first end of the tee joint is connected with the slurry inlet check valve box, the second end of the tee joint is connected with the diaphragm chamber, and the third end of the tee joint is connected with the slurry outlet check valve box; a slurry discharge pipe is connected to the outside of the slurry discharge check valve box; the volume of the sucked liquid in the diaphragm chamber is smaller than the volume of a pipeline between the slurry inlet check valve box and the diaphragm chamber. Compared with the prior art, the utility model has the beneficial effects that: the design of the pipeline and the valve is optimized, so that slurry does not directly enter the diaphragm chamber any more when the equipment is in operation, the functions of protecting the diaphragm and preventing the diaphragm chamber from being worn are achieved, and meanwhile, the need of high-altitude operation of maintenance personnel is avoided.

Description

Novel volumetric pump

Technical Field

The utility model relates to the field of volumetric pumps, in particular to a novel volumetric pump.

Background

In the conventional volumetric pump structure, referring to fig. 3, firstly, slurry enters from an inlet 13 through a first check valve 14, is pressurized through a pressurizing diaphragm chamber 15, and is discharged from a second check valve 16, and in the process, the slurry needs to pass through the pressurizing diaphragm chamber 15, so that a certain flushing is caused on the diaphragm of the pressurizing diaphragm chamber 15, the diaphragm chamber itself and a diaphragm chamber gland, and a certain abrasion is formed. Secondly, because the second check valve 16 is arranged at the top of the diaphragm chamber in the conventional layout structure, if the valve core of the second check valve 16 is damaged in the operation process, the second check valve can possibly fall into the pressurizing diaphragm chamber 15 to rupture the diaphragm, and the slurry can enter the hydraulic cylinder to cause hydraulic oil pollution and strain of the piston cylinder sleeve, so that great loss is caused to users to influence normal production. Finally, because the second check valve 16 is arranged at the top of the diaphragm chamber, the vulnerable part in the second check valve 16 is replaced into high-altitude operation, and a certain potential safety hazard exists.

Disclosure of Invention

The utility model provides a novel volumetric pump, which is characterized in that the design of a pipeline and a valve is optimized, so that slurry does not directly enter a diaphragm chamber when equipment runs, the functions of protecting the diaphragm and preventing the diaphragm chamber from being worn are achieved, and maintenance personnel are avoided from needing to perform high-altitude operation.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a novel volumetric pump comprises a slurry inlet pipe; at least 1 pulp inlet check valve boxes are arranged on the pulp inlet pipe; the slurry inlet check valve box is connected with a tee joint; the first end of the tee joint is connected with the slurry inlet check valve box, the second end of the tee joint is connected with the diaphragm chamber, and the third end of the tee joint is connected with the slurry outlet check valve box; a slurry discharge pipe is connected to the outside of the slurry discharge check valve box; the volume of the sucked liquid in the diaphragm chamber is smaller than the volume of a pipeline between the slurry inlet check valve box and the diaphragm chamber.

Preferably, the pipeline volume between the slurry inlet check valve box and the diaphragm chamber is filled with water.

As optimization, the pulp discharge check valve box is positioned above the pulp inlet check valve box.

As optimization, the discharge port of the pulp discharge check valve box and the pulp discharge pipe on the pulp discharge check valve box are positioned on the same horizontal plane.

As optimization, one side of the diaphragm chamber is provided with a diaphragm pump inlet; the bottom end of the diaphragm chamber is provided with a diaphragm pump outlet; and the outlet of the diaphragm pump is communicated with the tee joint.

As optimization, the level of the slurry discharging pipe is higher than that of the tee joint and is smaller than that of the inlet of the diaphragm pump; the pulp discharging pipe is parallel to the tee joint.

As optimization, the slurry discharging pipe is provided with a nitrogen bag.

As optimization, the inlet end of the pulp inlet pipe is provided with a pulp inlet buffer tank.

Preferably, the diaphragm chambers are all fixed on the base.

As optimization, an ear plate is arranged above the slurry inlet buffer tank.

Compared with the prior art, the utility model has the following beneficial effects: 1. the design of the pipeline valve is optimized, so that slurry does not directly enter the diaphragm chamber when the equipment is in operation, and the diaphragm is protected and the abrasion of components of the diaphragm chamber is prevented. The slurry enters from the slurry inlet check valve box, passes through the tee joint and is discharged from the slurry outlet check valve box, and the slurry does not pass through the diaphragm chamber any more, so that the abrasion to the diaphragm of the diaphragm chamber, the diaphragm chamber and the diaphragm chamber gland is avoided. 2. Because the slurry discharge check valve box of the structure is reduced below the diaphragm chamber, if the valve core of the slurry discharge check valve box is damaged in the running process, the problem that the diaphragm is broken due to falling into the diaphragm chamber and the slurry cannot enter the hydraulic oil cylinder to cause hydraulic oil pollution and the strain of the piston cylinder sleeve is solved. 3. Because the height of the slurry discharge check valve box is reduced, the high-altitude operation of maintenance personnel is avoided. 4. The whole structure of the equipment is beautiful and the layout is reasonable. 5. The slurry discharge check valve box and the slurry discharge pipeline part are reduced, so that the height reduction amplitude of the whole equipment is larger, and the device has absolute advantages in a use environment with limited height.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a front view of the present utility model.

Fig. 3 is a schematic structural view of a conventional volumetric pump according to the background of the utility model.

Wherein, advance thick liquid buffer tank 1, advance thick liquid pipe 2, advance thick liquid check valve box 3, tee bend 4, diaphragm room 5, diaphragm pump entry 6, row thick liquid check valve box 7, row thick liquid pipe 8, nitrogen package 9, base 10, row thick liquid check valve box discharge mouth 11, otic placode 12, import 13, first check valve 14, pressurization diaphragm room 15, second check valve 16, export 17.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only 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.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; 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.

A novel volumetric pump comprises a slurry inlet pipe 2; at least 1 pulp inlet check valve boxes 3 are arranged on the pulp inlet pipe 2; the slurry inlet check valve box 3 is connected with a tee joint 4; the first end of the tee joint 4 is connected with the slurry inlet check valve box 3, the second end of the tee joint 4 is connected with the diaphragm chamber 5, and the third end of the tee joint 4 is connected with the slurry outlet check valve box 7; a slurry discharge pipe 8 is connected with the outside of the slurry discharge check valve box 7; the volume of the sucked liquid in the diaphragm chamber 5 is smaller than the volume of a pipeline between the pulp inlet check valve box 3 and the diaphragm chamber 5. The volume of the pipeline from the slurry inlet check valve box 3 to the diaphragm chamber 5 is filled with water. Before the equipment starts to operate, water is supplied to the equipment, the pipeline is filled with the water, and the water can be kept in the diaphragm chamber because the density of the water is lower than that of the slurry. In normal operation, the volume of liquid sucked into the diaphragm chamber is smaller than the volume of a pipeline between the slurry discharge check valve and the diaphragm chamber, so that slurry cannot enter the diaphragm chamber.

The pulp discharge check valve box 7 is positioned above the pulp feed check valve box 3. The discharge outlet 11 of the discharge check valve box 7 and the discharge pipe 8 are positioned on the same horizontal plane. A diaphragm pump inlet 6 is arranged on one side of the diaphragm chamber 5; the bottom end of the diaphragm chamber 5 is provided with a diaphragm pump outlet; the diaphragm pump outlet is communicated with the tee joint 4. The level of the slurry discharging pipe 8 is higher than that of the tee joint 4 and is smaller than that of the diaphragm pump inlet 6; the pulp discharging pipe 8 is parallel to the tee joint 4.

The slurry discharging pipe 8 is provided with a nitrogen bag 9. Because the discharged slurry is not equal and stable, certain fluctuation exists, in order to ensure the stability of a pipeline, the nitrogen bag on the slurry discharging pipe is equivalent to an energy accumulator or a buffer tank, and plays a role in absorbing the fluctuation of the discharged slurry.

The inlet end of the pulp inlet pipe 2 is provided with a pulp inlet buffer tank 1.

The diaphragm chambers 5 are each fixed to the base 10. An ear plate 12 is arranged above the slurry inlet buffer tank 1.

The working principle is as follows:

the slurry is buffered by the slurry inlet buffer tank 1, then enters the slurry inlet pipe 2, enters the slurry inlet check valve boxes in a split-flow mode, then enters the tee joint 4, and is received under the action of the diaphragm chamber 5 and enters the slurry outlet pipe 8 through the slurry outlet check valve box 7 at the upper end, and finally, the discharge is realized.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. A novel volumetric pump, characterized in that: comprises a pulp inlet pipe (2); at least 1 pulp inlet check valve boxes (3) are arranged on the pulp inlet pipe (2); the slurry inlet check valve box (3) is connected with a tee joint (4); the first end of the tee joint (4) is connected with the slurry inlet check valve box (3), the second end of the tee joint (4) is connected with the diaphragm chamber (5), and the third end of the tee joint (4) is connected with the slurry outlet check valve box (7); a pulp discharge pipe (8) is connected with the outside of the pulp discharge check valve box (7); the volume of the sucked liquid in the diaphragm chamber (5) is smaller than the volume of a pipeline between the slurry inlet check valve box (3) and the diaphragm chamber (5).

2. A novel volumetric pump according to claim 1, characterized in that: the volume of the pipeline from the slurry inlet check valve box (3) to the diaphragm chamber (5) is filled with water.

3. A novel volumetric pump according to claim 1, characterized in that: the pulp discharge check valve box (7) is positioned above the pulp inlet check valve box (3).

4. A novel volumetric pump according to claim 3, characterized in that: the discharge outlet (11) of the discharge check valve box (7) and the discharge pipe (8) are positioned on the same horizontal plane.

5. A novel volumetric pump according to claim 4, characterized in that: one side of the diaphragm chamber (5) is provided with a diaphragm pump inlet (6); the bottom end of the diaphragm chamber (5) is provided with a diaphragm pump outlet; the outlet of the diaphragm pump is communicated with the tee joint (4).

6. A novel volumetric pump according to claim 5, characterized in that: the level of the slurry discharging pipe (8) is higher than that of the tee joint (4) and is smaller than that of the diaphragm pump inlet (6); the slurry discharging pipe (8) is parallel to the tee joint (4).

7. A novel volumetric pump according to claim 1, characterized in that: the slurry discharging pipe (8) is provided with a nitrogen bag (9).

8. A novel volumetric pump according to claim 1, characterized in that: the inlet end of the pulp inlet pipe (2) is provided with a pulp inlet buffer tank (1).

9. A novel volumetric pump according to claim 1, characterized in that: the diaphragm chambers (5) are all fixed on the base (10).

10. A novel volumetric pump according to claim 8, characterized in that: an ear plate (12) is arranged above the slurry inlet buffer tank (1).

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