CN219242130U

CN219242130U - Corrosion-resistant explosion-proof high-tightness hydraulic diaphragm type metering device

Info

Publication number: CN219242130U
Application number: CN202320283981.XU
Authority: CN
Inventors: 严永刚
Original assignee: Shaowu Yongtai High And New Mat Co ltd
Current assignee: Shaowu Yongtai High And New Mat Co ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-06-23
Anticipated expiration: 2033-02-22

Abstract

The utility model belongs to the technical field of metering pumps, and particularly relates to a corrosion-resistant explosion-proof high-tightness hydraulic diaphragm type metering device which comprises a pump body and an output pipe connected to one end of the pump body, wherein one end of the output pipe, which is far away from the pump body, is connected with a connecting pipe through a sealing assembly; the pressure gauge for detecting the internal pressure of the output pipe and the pressure relief assembly are arranged on the output pipe, the pump body is provided with a control box, the input end of the control box is electrically connected with the pressure gauge, and the output end of the control box is electrically connected with the pressure relief assembly; the pressure relief assembly comprises a pressure relief pipe connected to the upper end face of the output pipe, a movable pipe movably arranged in the pressure relief pipe and a blocking block fixedly arranged at the top of the movable pipe, and the movable pipe is of a hollow structure with an upper opening and a lower opening. Overcomes the defects of the prior art, utilizes the attractive force between the electromagnet and the magnetic ring to fix the blocking, avoids the pressure release when the pressure is smaller, and improves the tightness of the inside of the metering pump.

Description

Corrosion-resistant explosion-proof high-tightness hydraulic diaphragm type metering device

Technical Field

The utility model belongs to the technical field of metering pumps, and particularly relates to a corrosion-resistant explosion-proof hydraulic diaphragm type metering device with high sealing performance.

Background

The diaphragm metering pump replaces the piston with a specially designed flexible diaphragm, and realizes reciprocating motion under the action of the driving mechanism to complete the suction and discharge processes. The electric diaphragm pump really realizes the isolation between the fluid to be measured and the driving lubrication mechanism in structure due to the isolation function of the diaphragm. The high-tech structural design and the selection of novel materials have greatly improved the service life of the diaphragm, and the diaphragm metering pump has become the dominant force pump type in fluid metering application in addition to the excellent corrosion resistance of the composite materials.

Chinese patent with patent application number CN202221549074.7 discloses a diaphragm metering pump convenient to exhaust and release pressure, wherein discloses when the inside pressure of diaphragm metering pump body is too high, promotes annular piece and upwards slides, discharges through the inside pressure release hole of relief pressure piece, has improved work efficiency.

The pressure release block in the technical scheme moves repeatedly, so that pressure release can be performed when the internal air pressure of the metering pump rises, but pressure release can still occur when the internal pressure of the metering pump is low and pressure release is not needed, and the sealing performance of the interior of the metering pump is affected.

Disclosure of Invention

The utility model aims to provide a hydraulic diaphragm type metering device with high corrosion resistance, explosion resistance and sealing performance, which overcomes the defects of the prior art, utilizes attractive force between an electromagnet and a magnetic ring to fix a blocking block, avoids the pressure release condition when the pressure is small, and improves the sealing performance of the inside of a metering pump.

In order to solve the problems, the technical scheme adopted by the utility model is as follows:

the hydraulic diaphragm type metering device with high corrosion resistance, explosion resistance and sealing performance comprises a pump body and an output pipe connected to one end of the pump body, wherein one end of the output pipe far away from the pump body is connected with a connecting pipe through a sealing assembly;

install the manometer that is used for detecting output tube internal pressure on the output tube, set up the pressure release subassembly at output tube up end, install the control box on the pump body, the input and the manometer electric connection of control box, and the output and the pressure release subassembly electric connection of control box.

Further, the pressure release subassembly is including connecting the pressure release pipe at output tube up end, the activity setting is at the intraductal movable tube of pressure release and set firmly the shutoff piece at movable tube top, the movable tube is the inside hollow structure of upper and lower opening, and wears to establish the pressure release hole that a plurality of different altitudes are distributed along the lateral wall equidistance of movable tube on the lateral wall of movable tube, the outside of pressure release pipe is provided with electromagnetic component for the active position of restriction shutoff piece.

Further, the electromagnetic assembly comprises a mounting ring fixedly arranged on the outer side of one end of the pressure relief pipe close to the blocking block, an electromagnet which is coaxially arranged is embedded in the upper end face of the mounting ring, a magnetic ring which is correspondingly matched with the electromagnet is embedded in the lower end face of the blocking block, and when the electromagnet is electrified, the magnetic poles of one end, close to the magnetic ring, of the electromagnet are opposite.

Further, the below of collar is provided with solid fixed ring, and gu fixed ring sets firmly in the outside of pressure release pipe, gu set firmly helical reset spring between solid fixed ring and the sprue, and reset spring is located the outside of pressure release pipe and collar.

Further, the sealing assembly comprises two sealing rings which are respectively fixedly arranged on the outer sides of the output pipe and the connecting pipe, and the two sealing rings are fixed through a plurality of fastening bolts.

Further, two one sides that the sealing rings are close to each other have set firmly the snap ring and have seted up the seal groove, snap ring and the coaxial setting of seal groove, and the snap ring corresponds in pegging graft to the seal groove, the seal groove is embedded to be equipped with sealed the pad, the one end and the sealed pad butt of snap ring.

Furthermore, the pump body and the output pipe are both made of cast aluminum materials, and silicon carbide coatings are sprayed on the inner sides of the pump body and the output pipe.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the position of the blocking block is limited by the magnetic attraction between the electromagnet and the magnetic ring on the pressure relief pipe, so that the pressure relief is avoided when the pressure is low, and the magnetic attraction between the electromagnet and the magnetic ring is relieved when the pressure is increased, so that the pressure relief is performed.

2. According to the utility model, the output pipe is connected with the connecting pipe through the sealing assembly, so that the sealing performance of the connecting part of the metering pump is improved.

Drawings

Fig. 1 is a schematic structural diagram of a hydraulic diaphragm type metering device with high corrosion resistance, explosion resistance and sealing performance.

Fig. 2 is an enlarged schematic view of a corrosion-resistant explosion-proof sealing strong hydraulic diaphragm type measuring device at a position a.

Fig. 3 is a schematic structural diagram of a seal connection structure in a hydraulic diaphragm type metering device with high corrosion and explosion resistance and high sealing performance.

Fig. 4 is a schematic structural view of a seal ring in a corrosion-resistant explosion-proof high-tightness hydraulic diaphragm type metering device.

In the figure: 1. a pump body; 2. an output pipe; 3. a connecting pipe; 4. a control box; 5. a pressure gauge; 6. a pressure relief tube; 7. a movable tube; 8. blocking; 9. a pressure relief hole; 10. a fixing ring; 11. a return spring; 12. a mounting ring; 13. a magnetic ring; 14. an electromagnet; 15. a seal ring; 16. a fastening bolt; 17. a clasp; 18. and (5) sealing the groove.

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.

As shown in fig. 1-4, the hydraulic diaphragm type metering device with high corrosion resistance, explosion resistance and tightness comprises a pump body 1 and an output pipe 2 connected to one end of the pump body 1, wherein one end, far away from the pump body 1, of the output pipe 2 is connected with a connecting pipe 3 through a sealing assembly;

install the manometer 5 that is used for detecting output tube 2 internal pressure on the output tube 2, set up the pressure release subassembly at output tube 2 up end, install control box 4 on the pump body 1, the input and the manometer 5 electric connection of control box 4, and the output and the pressure release subassembly electric connection of control box 4.

In order to be convenient for the pressure release, the pressure release subassembly is including connecting the pressure release pipe 6 at output tube 2 up end, the activity sets up movable pipe 7 in pressure release pipe 6 and set firmly the shutoff piece 8 at movable pipe 7 top, and movable pipe 7 is the inside hollow structure of upper and lower opening, and wears to set up a plurality of different altitudes on the lateral wall of movable pipe 7 along the pressure release hole 9 of the lateral wall equidistance distribution of movable pipe 7, the outside of pressure release pipe 6 is provided with electromagnetic assembly for the hooping piece 8's of restriction active position.

The electromagnetic assembly comprises a mounting ring 12 fixedly arranged on the outer side of one end of the pressure relief pipe 6, which is close to the blocking block 8, an electromagnet 14 which is coaxially arranged is embedded on the upper end face of the mounting ring 12, a magnetic ring 13 which is correspondingly matched with the electromagnet 14 is embedded on the lower end face of the blocking block 8, and when the electromagnet 14 is electrified, the magnetic poles of one end, which is close to the magnetic ring 13, of the electromagnet 14 are opposite.

In order to improve the tightness of the joint, a fixed ring 10 is arranged below the mounting ring 12, the fixed ring 10 is fixedly arranged on the outer side of the pressure relief pipe 6, a spiral reset spring 11 is fixedly arranged between the fixed ring 10 and the blocking 8, and the reset spring 11 is positioned on the outer sides of the pressure relief pipe 6 and the mounting ring 12; the sealing assembly comprises two sealing rings 15 which are respectively fixedly arranged on the outer sides of the output pipe 2 and the connecting pipe 3, and the two sealing rings 15 are fixed through a plurality of fastening bolts 16.

One side that two sealing rings 15 are close to each other has set firmly snap ring 17 and has offered seal groove 18, and snap ring 17 and the coaxial setting of seal groove 18, and snap ring 17 correspond grafting to in the seal groove 18, and the seal groove 18 is embedded to be equipped with sealed the pad, and the one end and the sealed pad butt of snap ring 17, fastening bolt 16 are located the outside of snap ring 17 and seal groove 18.

In order to improve the corrosion resistance of the metering pump, the pump body 1 and the output pipe 2 are made of cast aluminum materials, and silicon carbide coatings are sprayed on the inner sides of the pump body 1 and the output pipe 2.

In summary, according to the hydraulic diaphragm type metering device with high corrosion resistance, explosion resistance and sealing performance, when the hydraulic diaphragm type metering device is used, after the conveying pipe and the connecting pipe 3 are corresponding, the clamping rings 17 on the two sealing rings 15 are corresponding to the sealing grooves 18, external force is applied to enable the clamping rings 17 to be inserted into the corresponding sealing grooves 18, then the fastening bolts 16 are sequentially screwed, and one end of the clamping rings 17 is tightly attached to the sealing gaskets, so that connection can be completed.

After the pump body 1 is started, the internal pressure of the pump body 1 gradually rises in the fluid conveying process, the barometer detects the pressure of the pump body 1, and when the pressure is lower and is in a safety threshold value, the control box 4 controls the electromagnet 14 to supply power, so that the blocking block 8 is tightly attached to the pressure relief pipe 6 through the magnetic attraction between the electromagnet 14 and the magnetic ring 13; when the pressure rises above the safety threshold, the control box 4 controls the electromagnet 14 to be powered off, the blocking block 8 and the movable pipe 7 are lifted up to move upwards under the action of the pressure until the pressure relief hole 9 on the movable pipe 7 extends out of the pressure relief pipe 6 to realize pressure relief, the greater the pressure is, the longer the movable pipe 7 extends out, the more the pressure relief holes 9 extend out, and the pressure relief speed is higher; after the pressure relief is finished, the blocking block 8 drives the pressure relief pipe 6 to descend under the action of the reset spring 11, and then the control box 4 supplies power to the electromagnet 14; the reset spring 11 is arranged to limit the movable tube 7 to lift up and completely separate from the pressure release tube 6 by using the reset force.

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

1. A corrosion-resistant explosion-proof strong leakproofness hydraulic pressure diaphragm type metering device, its characterized in that: the device comprises a pump body (1) and an output pipe (2) connected to one end of the pump body (1), wherein one end, far away from the pump body (1), of the output pipe (2) is connected with a connecting pipe (3) through a sealing assembly;

install on output tube (2) and be used for detecting manometer (5) of output tube (2) internal pressure, set up the pressure release subassembly at output tube (2) up end, install control box (4) on pump body (1), the input and the manometer (5) electric connection of control box (4), and the output and the pressure release subassembly electric connection of control box (4).

2. The corrosion-resistant, explosion-proof, high-tightness hydraulic diaphragm type metering device of claim 1, wherein: the pressure relief assembly comprises a pressure relief pipe (6) connected to the upper end face of the output pipe (2), a movable pipe (7) movably arranged in the pressure relief pipe (6) and a blocking block (8) fixedly arranged at the top of the movable pipe (7), the movable pipe (7) is of a hollow structure in the upper opening and the lower opening, pressure relief holes (9) which are distributed at different heights along the outer side wall of the movable pipe (7) in an equidistant manner are formed in the outer side wall of the movable pipe (7), and an electromagnetic assembly is arranged on the outer side of the pressure relief pipe (6) and used for limiting the movable position of the blocking block (8).

3. The corrosion-resistant, explosion-proof, high-tightness hydraulic diaphragm type metering device of claim 2, wherein: the electromagnetic assembly comprises a mounting ring (12) fixedly arranged on the outer side of one end of the pressure relief pipe (6) close to the blocking block (8), an electromagnet (14) which is coaxially arranged is embedded in the upper end face of the mounting ring (12), a magnetic ring (13) which is correspondingly matched with the electromagnet (14) is embedded in the lower end face of the blocking block (8), and when the electromagnet (14) is electrified, the magnetic poles of one end, close to each other, of the electromagnet (14) and the magnetic ring (13) are opposite.

4. A corrosion-resistant, explosion-proof, high-tightness hydraulic diaphragm metering device according to claim 3, wherein: the lower part of the mounting ring (12) is provided with a fixing ring (10), the fixing ring (10) is fixedly arranged on the outer side of the pressure relief pipe (6), a spiral reset spring (11) is fixedly arranged between the fixing ring (10) and the blocking block (8), and the reset spring (11) is positioned on the outer sides of the pressure relief pipe (6) and the mounting ring (12).

5. The corrosion-resistant, explosion-proof, high-tightness hydraulic diaphragm type metering device of claim 1, wherein: the sealing assembly comprises two sealing rings (15) which are respectively fixedly arranged on the outer sides of the output pipe (2) and the connecting pipe (3), and the two sealing rings (15) are fixed through a plurality of fastening bolts (16).

6. The corrosion-resistant, explosion-proof, high-tightness hydraulic diaphragm type metering device of claim 5, wherein: two one side that sealing ring (15) are close to each other has set firmly snap ring (17) and has seted up seal groove (18), snap ring (17) and seal groove (18) coaxial setting, and snap ring (17) correspond in grafting to seal groove (18), seal groove (18) are embedded to be equipped with sealed the pad, the one end and the sealed pad butt of snap ring (17).

7. The corrosion-resistant, explosion-proof, high-tightness hydraulic diaphragm type metering device of claim 1, wherein: the pump body (1) and the output pipe (2) are made of cast aluminum materials, and silicon carbide coatings are sprayed on the inner sides of the pump body (1) and the output pipe (2).