CN210178550U

CN210178550U - Device for preventing backflow of solution of hydraulic diaphragm metering pump

Info

Publication number: CN210178550U
Application number: CN201920866918.2U
Authority: CN
Inventors: Shengli Liu; 刘胜利; Yutong Liu; 刘羽彤
Original assignee: Huaian Weili Pump Technology Co Ltd
Current assignee: Huaian Weili Pump Technology Co Ltd
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-03-24
Anticipated expiration: 2029-06-11

Abstract

The utility model discloses a device for preventing backflow of hydraulic pressure diaphragm metering pump solution, including hydraulic pressure diaphragm metering pump, lifting rod and driving motor, be provided with the connection box under the hydraulic pressure diaphragm metering pump, and the outside of connecting the box is connected with pipeline, be provided with the new water intake chamber under the lifting rod, and the inside of new water intake chamber is provided with the division board, the left side of new water intake chamber is connected with the feed liquor three-way valve, and one side of feed liquor three-way valve is connected with the feed liquor preheating groove, driving motor installs in the outside of feed liquor preheating groove, and is provided with the crystallization contact tube under the feed liquor preheating groove, the internally mounted of feed liquor preheating groove has first rectangle slide rail, and the outside of first rectangle slide rail is connected with the slider. This prevent device of hydraulic pressure diaphragm metering pump solution backward flow adopts lifting rod and jam block, carries out horizontal lift through pressing down the lifting rod and drive the jam block, according to the stability of the altitude mixture control jam block of liquid.

Description

Device for preventing backflow of solution of hydraulic diaphragm metering pump

Technical Field

The utility model relates to an advanced manufacturing and automation equipment technical field specifically are a prevent device of hydraulic pressure diaphragm metering pump solution backward flow.

Background

The hydraulic diaphragm metering pump is used as conveying equipment for precise metering, the requirement on the stability of flow is high, the metering precision requirement is 1%, the diaphragm metering pump utilizes a flexible diaphragm which is specially designed and processed to replace a piston, reciprocating motion is realized under the action of a driving mechanism, the processes of suction and discharge are completed, and the electric diaphragm pump realizes the isolation between metered fluid and a driving lubricating mechanism really in structure due to the isolation effect of the diaphragm.

At present, when the liquid inlet of the diaphragm metering pump is used, the liquid is crystallized and blocks the suction ball valve and the discharge ball valve due to low temperature, so that the discharge stroke of the pump cannot be completely closed, partial backflow of the hydraulic diaphragm metering pump is caused, and the liquid in the heating process can generate a large amount of crystals, so that the crystals block the suction end and the discharge end of the pump body.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent device of hydraulic pressure diaphragm metering pump solution backward flow to the diaphragm metering pump temperature that provides in solving above-mentioned background art causes the solution crystallization to block up and inhales ball valve and discharge ball valve, leads to the discharge stroke of pump can not seal completely, because the liquid in the heating process can produce a large amount of crystallization, the crystallization leads to the fact the problem of jam to the suction end and the derivation end of the pump body.

In order to achieve the above object, the utility model provides a device for preventing backflow of a solution of a hydraulic diaphragm metering pump, which comprises the hydraulic diaphragm metering pump, a lifting rod and a driving motor, wherein a connecting box body is arranged under the hydraulic diaphragm metering pump, a conveying pipeline is connected with the outer side of the connecting box body, a new water inlet groove is arranged under the lifting rod, a partition plate is arranged inside the new water inlet groove, the left side of the new water inlet groove is connected with a three-way liquid inlet valve, one side of the liquid inlet three-way valve is connected with a liquid inlet preheating groove, the driving motor is arranged outside the liquid inlet preheating groove, a crystallization outlet pipe is arranged under the liquid inlet preheating groove, a first rectangular slide rail is arranged inside the liquid inlet preheating groove, the outer side of the first rectangular slide rail is connected with a slide block, the outer side of the slide block is connected with a cleaning back plate, and the outer side of the cleaning back plate is connected with a, the back of clearance backplate is connected with the clearance brush, be connected with the jam piece under the lifting rod, and the right side of jam piece is connected with second rectangle slide rail, driving motor's output is connected with the rotary gear.

Preferably, the lifting rod, the plugging block and the second rectangular slide rail form a sliding structure, the length of the lifting rod is greater than that of the liquid inlet preheating groove, and the diameter of the plugging block is greater than that of the conveying pipeline.

Preferably, the partition plates are distributed on the fresh water inlet grooves in a staggered mode, and the outer sides of the fresh water inlet grooves are of transparent rectangular structures.

Preferably, the liquid inlet preheating tank, the fresh water inlet tank and the hydraulic diaphragm metering pump are communicated with the liquid inlet three-way valve through a conveying pipeline, and the bottom of the liquid inlet preheating tank is of a slope-shaped structure.

Preferably, the cleaning back plate is of a circular arc-shaped structure, cleaning brushes are distributed on the outer side of the cleaning back plate at equal intervals, and the cleaning brushes are attached to the liquid inlet preheating groove.

Preferably, the tooth rack, the first rectangular sliding rail, the sliding block and the cleaning back plate form a lifting structure, and the length of the cleaning back plate is half of that of the liquid inlet preheating groove.

Compared with the prior art, the beneficial effects of the utility model are that: the device for preventing the backflow of the solution of the hydraulic diaphragm metering pump,

1. the lifting rod and the plugging block are adopted, the plugging block is driven to horizontally lift by pressing the lifting rod, the stability of the plugging block is adjusted according to the height of liquid, the phenomenon that a suction ball valve and a discharge ball valve are blocked by solution crystallization caused by low temperature is avoided, and the height of the plugging block is adjusted according to the liquid inlet requirement of the liquid;

2. the cleaning back plate and the tooth strips are adopted, the cleaning back plate is driven by the tooth strips to move up and down, the convenience of cleaning crystals on the surface of the liquid inlet preheating groove is improved, the cleaning brush is used for cleaning the outer sides of the crystals, crystals are prevented from being mixed in the liquid, and the stability of the hydraulic diaphragm metering pump in the using process is ensured;

3. adopt the crystallization eduction tube, directly leading-in to feed liquor preheating groove through the crystallization of having cleared up promotes the convenience to the inside impurity clearance of feed liquor preheating groove.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the feed liquor preheating tank of the present invention;

FIG. 3 is an enlarged schematic view of point A of FIG. 1 according to the present invention;

fig. 4 is a schematic view of the liquid inlet preheating tank in a top view.

In the figure: 1. a hydraulic diaphragm metering pump; 2. connecting the box body; 3. a delivery conduit; 4. lifting a pull rod; 5. a fresh water inlet groove; 6. a partition plate; 7. a liquid inlet three-way valve; 8. a liquid inlet preheating groove; 9. a drive motor; 10. a crystallization delivery pipe; 11. a first rectangular slide rail; 12. a slider; 13. cleaning the back plate; 14. a tooth rack; 15. cleaning the brush; 16. a plugging block; 17. a second rectangular slide rail; 18. the gear is rotated.

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.

Referring to fig. 1-4, the present invention provides a technical solution: a device for preventing the backflow of a hydraulic diaphragm metering pump solution comprises a hydraulic diaphragm metering pump 1, a connecting box body 2, a conveying pipeline 3, a lifting rod 4, a new water inlet groove 5, a partition plate 6, a liquid inlet three-way valve 7, a liquid inlet preheating groove 8, a driving motor 9, a crystallization delivery pipe 10, a first rectangular slide rail 11, a slide block 12, a cleaning back plate 13, a tooth rack 14, a cleaning brush 15, a blocking block 16, a second rectangular slide rail 17 and a rotating gear 18, wherein the connecting box body 2 is arranged right below the hydraulic diaphragm metering pump 1, the conveying pipeline 3 is connected to the outer side of the connecting box body 2, the new water inlet groove 5 is arranged right below the lifting rod 4, the partition plate 6 is arranged inside the new water inlet groove 5, the left side of the new water inlet groove 5 is connected with the liquid inlet valve 7, one side of the liquid inlet three-way valve 7 is connected with the preheating liquid inlet groove 8, the driving motor 9 is arranged on the outer, and a crystallization eduction tube 10 is arranged right below the feed liquor preheating groove 8, a first rectangular slide rail 11 is arranged inside the feed liquor preheating groove 8, the outer side of the first rectangular slide rail 11 is connected with a slide block 12, the outer side of the slide block 12 is connected with a cleaning back plate 13, the outer side of the cleaning back plate 13 is connected with a tooth rack 14, the back of the cleaning back plate 13 is connected with a cleaning brush 15, a plugging block 16 is connected right below the lifting rod 4, the right side of the plugging block 16 is connected with a second rectangular slide rail 17, and the output end of the driving motor 9 is connected with a rotating gear 18.

The lifting rod 4, the blocking block 16 and the second rectangular sliding rail 17 form a sliding structure, the length of the lifting rod 4 is larger than that of the liquid inlet preheating groove 8, the diameter of the blocking block 16 is larger than that of the conveying pipeline 3, the bottom of the conveying pipeline 3 is blocked through the blocking block 16, and the position of the blocking block 16 is adjusted according to liquid introduction requirements.

Division board 6 crisscross distribution is on new water intake chamber 5, and the outside of new water intake chamber 5 is transparent rectangle structure, is convenient for block up pipeline 3's bottom according to the quantity of liquid, avoids the leading-in hydraulic pressure diaphragm measuring pump 1 of crystallization to influence and measures the accuracy.

The feed liquor preheating groove 8, the fresh water inlet groove 5 and the hydraulic diaphragm metering pump 1 are communicated with the feed liquor three-way valve 7 through the conveying pipeline 3, the bottom of the feed liquor preheating groove 8 is of a slope-shaped structure, the liquid subjected to impurity removal is conveniently and directly guided into the hydraulic diaphragm metering pump 1, and impurities are precipitated through the feed liquor preheating groove 8.

The whole arc structure that is of clearance backplate 13, and the equidistant distribution in the outside of clearance backplate 13 has clearance brush 15 to clearance brush 15 laminates with feed liquor preheating tank 8 each other, scrubs impurity through clearance brush 15, reduces the content of the inside impurity of liquid.

Tooth rack 14, first rectangle slide rail 11, slider 12 and clearance backplate 13 constitute elevation structure, and the length of clearance backplate 13 is the half of feed liquor preheating groove 8 length, is convenient for promote the convenience to the inside impurity clearance of liquid through clearance backplate 13 round trip movement, avoids the measuring pump to block up the pipeline.

The working principle is as follows: when the device for preventing the backflow of the solution of the hydraulic diaphragm metering pump is used, according to the illustration in fig. 1 and 3, an operator connects the hydraulic diaphragm metering pump 1 with a new water inlet tank 5 through a conveying pipeline 3, the fresh water inlet tank 5 is connected with the liquid inlet preheating tank 8 through the liquid inlet three-way valve 7, then an operator holds the lifting rod 4 to press the lifting rod 4 downwards, the plugging block 16 at the bottom of the lifting rod 4 slides on the outer side of the second rectangular slide rail 17, then the liquid is guided into the fresh water inlet tank 5 through the conveying pipeline 3, the liquid is separated by the partition plate 6 in the fresh water inlet tank 5 to ensure the uniformity in the liquid conveying process, when the liquid in the fresh water inlet tank 5 is filled, an operator holds the lifting rod 4, presses the lifting rod 4 upwards, and blocks the bottom of the conveying pipeline 3 through the blocking block 16;

according to fig. 2 and 4, after the liquid inside the feed liquor preheating groove 8 is heated, an operator opens the driving motor 9, the driving motor 9 drives the rotating gear 18 to rotate, the tooth strips 14 which drive the left side and the right side through the rotating gear 18 move up and down, the tooth strips 14 drive the cleaning back plate 13 to move up and down, the sliding block 12 at the back of the cleaning back plate 13 is lifted up and down at the first rectangular sliding rail 11, the cleaning brush 15 at the back of the cleaning back plate 13 cleans crystals generated by heating, and then the operator opens the crystal delivery pipe 10, and the liquid mixed with the crystals is delivered out of the feed liquor preheating groove 8.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a prevent device of hydraulic pressure diaphragm metering pump solution backward flow, includes hydraulic pressure diaphragm metering pump (1), carries pull rod (4) and driving motor (9), its characterized in that: the device is characterized in that a connecting box body (2) is arranged under the hydraulic diaphragm metering pump (1), the outer side of the connecting box body (2) is connected with a conveying pipeline (3), a fresh water inlet groove (5) is arranged under the lifting rod (4), a partition plate (6) is arranged inside the fresh water inlet groove (5), the left side of the fresh water inlet groove (5) is connected with a liquid inlet three-way valve (7), one side of the liquid inlet three-way valve (7) is connected with a liquid inlet preheating groove (8), a driving motor (9) is installed on the outer side of the liquid inlet preheating groove (8), a crystallization outlet pipe (10) is arranged under the liquid inlet preheating groove (8), a first rectangular sliding rail (11) is installed inside the liquid inlet preheating groove (8), the outer side of the first rectangular sliding rail (11) is connected with a sliding block (12), the outer side of the sliding block (12) is connected with a cleaning back plate (13), and the outside of clearance backplate (13) is connected with tooth strip (14), the back of clearance backplate (13) is connected with clearance brush (15), be connected with jam block (16) under lifting rod (4), and the right side of jam block (16) is connected with second rectangle slide rail (17), the output of driving motor (9) is connected with rotating gear (18).

2. The device for preventing backflow of a solution in a hydraulic diaphragm metering pump according to claim 1, wherein: the lifting rod (4), the plugging block (16) and the second rectangular sliding rail (17) form a sliding structure, the length of the lifting rod (4) is larger than that of the liquid inlet preheating groove (8), and the diameter of the plugging block (16) is larger than that of the conveying pipeline (3).

3. The device for preventing backflow of a solution in a hydraulic diaphragm metering pump according to claim 1, wherein: the partition plates (6) are distributed on the fresh water inlet grooves (5) in a staggered mode, and the outer sides of the fresh water inlet grooves (5) are of transparent rectangular structures.

4. The device for preventing backflow of a solution in a hydraulic diaphragm metering pump according to claim 1, wherein: the liquid inlet preheating groove (8), the fresh water inlet groove (5) and the hydraulic diaphragm metering pump (1) are communicated with a liquid inlet three-way valve (7) through a conveying pipeline (3), and the bottom of the liquid inlet preheating groove (8) is of a slope-shaped structure.

5. The device for preventing backflow of a solution in a hydraulic diaphragm metering pump according to claim 1, wherein: the cleaning back plate (13) is integrally of an arc-shaped structure, cleaning brushes (15) are distributed on the outer side of the cleaning back plate (13) at equal intervals, and the cleaning brushes (15) are attached to the liquid inlet preheating groove (8) mutually.

6. The device for preventing backflow of a solution in a hydraulic diaphragm metering pump according to claim 1, wherein: the tooth rack (14), the first rectangular sliding rail (11), the sliding block (12) and the cleaning back plate (13) form a lifting structure, and the length of the cleaning back plate (13) is half of that of the liquid inlet preheating groove (8).