CN223861435U - High-pressure filter device convenient for checking and cleaning filter element - Google Patents

Abstract

The utility model discloses a high-pressure filtering device convenient for checking and cleaning a filter element, which comprises a barrel and the filter element arranged in the barrel, wherein one end of the barrel is provided with a pressure relief end cover, the pressure relief end cover is provided with a pressure relief valve cover component which is used for sealing the end head of the filter element when the internal pressure of the filter element is normal and automatically relieving pressure when the internal pressure of the filter element is overlarge, and the pressure relief valve cover component is independently and detachably connected with the pressure relief end cover. According to the utility model, the pressure relief valve cover assembly which can be independently detached and connected to the pressure relief end covers is arranged, so that the pressure relief valve cover assembly can independently open or close the filter element, the bottom of the filter element is convenient to open quickly, the filter element is also convenient to directly check and clean under the conditions that the end covers at two ends are not opened and the filter element is not detached, the overhaul and maintenance efficiency of the high-pressure filter is effectively improved, the maintenance cost is reduced, and the pressure relief valve has the advantages of automatic pressure relief, simple structure, good filtering effect and the like.

Description

High-pressure filter device convenient for checking and cleaning filter element

Technical Field

The utility model belongs to the technical field of high-pressure fluid filtration, and particularly relates to a high-pressure filtration device.

Background

In the existing high-pressure abrasive jet descaling process, the high-pressure pump provides a pressure water source for the spray head, but because the high-pressure pump works for a long time, the sealing element is worn, so that a small amount of impurities exist in the pressure water source flowing out of the high-pressure pump, and the phenomenon of blocking the descaling spray head easily occurs, and therefore, a high-pressure filter is needed to be additionally arranged between the high-pressure pump and the descaling spray head.

The currently used high-pressure filter basically adopts a circular tube-shaped filter core, and pressure water is filtered by utilizing a mode of filtering from the inner side of the filter core to the outer side. In order to ensure that the high-pressure filter achieves the required filtration accuracy, good sealing performance must be maintained between the circular tubular filter element and the two end covers, so that pressurized water can only flow through the filter element. In industrial production, vertically mounted high pressure filters typically have a filter cartridge positioned vertically, with the filter cartridge feeding water from the upper end and the side exiting the filter cartridge at a location adjacent the upper end. The lower end of the filter core is provided with a pressure relief component, and the component seals the end of the filter core when the internal pressure of the filter core is normal, so that water leakage is prevented. The pressure relief assembly comprises a pressure relief valve plate and a pressure relief spring, when the pressure of the filter element is overlarge, the pressure relief spring automatically compresses, the pressure relief valve plate is opened, and the end head of the filter element is relieved, so that the pressure relief function is realized. Although the pressure relief assembly can be reused under the action of the pressure relief spring, the design is not beneficial to the inspection and cleaning of dirt inside the filter core. The problem of checking and cleaning the clogging of the filter element inside the high-pressure filter requires opening the end cap of the whole high-pressure filter, which is inconvenient to operate and difficult to disassemble, which not only reduces the use effect of the high-pressure filter, but also increases the maintenance cost. Therefore, there is a need for an automatic pressure relief high pressure filtration device that can quickly inspect and clean the filter element without opening the end caps at both ends, thereby improving the maintenance efficiency of the device and reducing the maintenance cost.

Disclosure of utility model

The utility model aims to solve the technical problems and overcome the defects in the prior art, and provides the high-pressure filtering device which has the advantages of simple structure, convenient maintenance and disassembly, wide application range, automatic pressure relief and convenient inspection and cleaning of the filter element.

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

The utility model provides a high pressure filter equipment convenient to inspect clearance filter core, includes the barrel and set up in filter core in the barrel, the one end of barrel is provided with the pressure release end cover, be equipped with on the pressure release end cover be used for can with when filtering core internal pressure is normal the end seal of filter core and work as can automatic pressure release when filtering core internal pressure is too big the pressure release valve gap subassembly, the pressure release valve gap subassembly can independently dismantle connect in the pressure release end cover.

In the above high-pressure filtering device, preferably, the pressure relief valve cover assembly comprises a pressure relief valve cover and a pressure relief piece, wherein the pressure relief piece is used for automatically relieving pressure when the internal pressure of the filter element is overlarge, and the pressure relief valve cover is in sealing connection with one end of the filter element through the pressure relief piece. Through setting up the pressure release piece for the filter core can be sealed the end of filter core when internal pressure is normal, ensures under normal operating condition, and the pressurized water can only flow through the filter core, can not follow other positions and flow out, can automatic pressure release when filter core internal pressure is too big, release unnecessary pressure, thereby the harm of protection filter core avoid too high pressure.

In the above high-pressure filtering device, preferably, the pressure release piece is a pressure release piece that is used for breaking and releasing pressure when the internal pressure of the filter element is too high, a groove is arranged at one end of the pressure release valve cover connected with the filter element, and the pressure release piece is arranged in the groove. The recess that sets up can fix a position the pressure release piece fixedly, place the pressure release piece in the recess, through the zonulae occludens of pressure release end cover and pressure release valve gap, make the pressure release piece realize compressing tightly sealedly with the filter core terminal surface, but normal work carries out effective filtration and discharge when filter core internal pressure is normal, when filter core causes its inside and outside pressure differential too big because of blockking up, the pressure release piece can in time be automatic by fracturing open release pressure, the protection filter core can not break because of inside and outside pressure differential too big, and whether can pass through the quick accurate judgement filter core of the fracture condition of inspection pressure release piece needs to dismantle the overhaul or direct change, the inside degree of blockking up of filter core is crossed in accurate early warning, also only need change a slice new pressure release piece place in the recess can when recovering, high pressure filter core's inspection cleaning efficiency has been improved greatly.

Among the above-mentioned high pressure filter equipment, preferably, the pressure release valve gap includes a hollow groove, the hollow groove sets up in the pressure release piece keep away from one side of filter core, a plurality of pressure release holes have radially been seted up to the hollow groove, a plurality of pressure release grooves have been seted up on the inside wall of pressure release end cover, the filter core with leave the water channel between the pressure release end cover, hollow groove, pressure release hole, pressure release groove with the water channel is linked together. Through this setting, the pressure release piece breaks and opens the back, and the interior pressurized water of filter core flows into the relief hole through the hollow groove of pressure release valve gap, the hollow groove of pressure release end cover, flows to the filter core outside through the water channel.

In the above high pressure filter device, preferably, the hollow tank includes a drainage cavity for collecting deposited impurities, and the drainage cavity is disposed at a side of the pressure relief hole away from the filter element. After the pressure relief piece is broken and opened, deposited impurities inside the filter core can enter the sewage draining cavity for deposition, and when the inspection and cleaning are carried out, the pressure relief valve cover is only required to be opened each time, so that the impurities on the filter layer inside the filter core can be directly cleaned, the impurities in the sewage draining cavity can be rapidly discharged, and the inspection and cleaning efficiency of the high-pressure filter device is improved.

In the above high-pressure filtering device, preferably, the pressure relief end cover is connected with the pressure relief valve cover in a threaded fit manner. This setting not only is convenient for dismantle fast and install the pressure release valve gap for the pressure release valve gap can take out from the pressure release end cover fast, still through the fastening effect of screw thread, makes the pressure release piece compress tightly sealedly fast with the filter core terminal surface. The maintenance and replacement operations are simplified, and the working efficiency is further improved.

In the above high-pressure filtering device, preferably, a water outlet connector is disposed on one side of the cylinder, supporting rings for supporting the filter core are disposed on two sides of the water outlet connector, and the supporting rings are sleeved on the filter core and provided with a plurality of water passing holes. The support ring is arranged on two sides close to the water outlet joint, so that deformation of the filter element near the water outlet due to overlarge pressure difference between the inner side and the outer side is avoided, when the residual impurities in the filter element are increased to be blocked, the impurities are uniformly distributed along the circumferential direction from bottom to top along the inner wall of the filter element, and bending deformation of the filter element due to uneven circumferential stress of the filter element caused by the blocking of the impurities on one side is avoided.

In the above high-pressure filtering device, preferably, the filter core includes a filter layer and a cylindrical exoskeleton, the filter layer is attached to an inner wall of the cylindrical exoskeleton, the filter layer is formed by stacking multiple layers of filter screens, and the cylindrical exoskeleton is provided with multiple water permeable holes. The cylindrical structure of the cylindrical exoskeleton can bear higher pressure, so that the filter element is difficult to deform or damage under a high-pressure working environment, and the filter layers formed by overlapping the multi-layer filter screens can be used for carrying out multi-layer filtration on flowing liquid, effectively intercepting impurities with different particle sizes, improving the filtration precision and ensuring the quality of filtered pressurized water.

In the above high-pressure filtering device, preferably, the other end of the cylinder is provided with a water inlet end cover, one side of the water inlet end cover is provided with a water inlet joint, the other side of the water inlet end cover is provided with a positioning groove, the upper end of the filter element is embedded in the positioning groove, and a high-pressure sealing ring is arranged between the upper end face of the filter element and the water inlet end cover.

In the above high-pressure filtering device, preferably, high-pressure sealing rings are respectively arranged between the water inlet end cover and the pressure relief end cover and between the two ends of the cylinder, and the water inlet end cover and the pressure relief end cover are respectively and fixedly connected with the two ends of the cylinder through flanges.

Compared with the prior art, the utility model has the advantages that:

According to the utility model, the pressure relief valve cover assembly which can be independently detached and connected to the pressure relief end covers is arranged, so that the pressure relief valve cover assembly can independently open or close the filter element, the bottom of the filter element is convenient to open rapidly, the filter element is also convenient to directly check and clean under the conditions that the end covers at two ends are not opened and the filter element is not detached, the overhaul and maintenance efficiency of the high-pressure filter is effectively improved, the maintenance cost is reduced, and the pressure relief valve cover assembly has the advantages of automatic pressure relief, simple structure, good filtering effect, wide application range and the like.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a high pressure filter apparatus according to an embodiment;

FIG. 2 is a cross-sectional view of the high pressure filtration device of FIG. 1 taken along the direction A-A;

FIG. 3 is a cross-sectional view of the high pressure filtration device of FIG. 1 taken along the direction B-B;

FIG. 4 is a schematic view showing the structure of a filter core of the high-pressure filter device according to the embodiment;

FIG. 5 is a cross-sectional view of a filter element of the high pressure filtration device of the embodiment;

FIG. 6 is a schematic view of a pressure relief valve cover assembly of a high pressure filtration device according to an embodiment;

FIG. 7 is a cross-sectional view of the pressure relief valve cover assembly of FIG. 6 taken along the direction C-C.

Description of the drawings

1. A cylinder; 2, a filter element, 3, a pressure relief end cover, 4, a water inlet end cover, 5, a pressure relief valve cover, 6, a pressure relief piece, 7, a water passage, 11, a water outlet joint, 12, a support ring, 13, a water outlet hole, 21, a filter layer, 22, a cylindrical exoskeleton, 23, a water outlet hole, 31, a pressure relief groove, 41, a water inlet joint, 42, a positioning groove, 51, a groove, 52, a hollow groove, 53, a pressure relief hole, 521 and a blowdown cavity.

Detailed Description

The present utility model will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown, for the purpose of illustrating the utility model, but the scope of the utility model is not limited to the specific embodiments shown.

It will be understood that when an element is referred to as being "fixed, affixed, connected, or in communication with" another element, it can be directly fixed, affixed, connected, or in communication with the other element or intervening elements may be present.

Unless defined otherwise, all technical and scientific terms used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the scope of the present utility model.

Unless otherwise specifically indicated, the various raw materials, reagents, instruments, equipment and the like used in the present utility model are commercially available or may be prepared by existing methods.

Examples:

As shown in fig. 1 to 7, the high-pressure filtering device convenient for checking and cleaning the filter element of the embodiment is vertically installed, and comprises a barrel 1 and a filter element 2 arranged in the barrel 1, wherein one end of the barrel 1 is provided with a pressure relief end cover 3, and the pressure relief end cover 3 is provided with a pressure relief valve cover component which is used for sealing the end of the filter element 2 when the internal pressure of the filter element 2 is normal and automatically relieving pressure when the internal pressure of the filter element 2 is overlarge, and the pressure relief valve cover component is independently detachable and connected with the pressure relief end cover 3.

In this embodiment, the pressure release valve gap subassembly includes pressure release valve gap 5 and is used for when the pressure in filter core 2 is too big pressure release spare that can automatic pressure release, and pressure release valve gap 5 passes through pressure release spare and filter core 2's one end sealing connection.

In this embodiment, as shown in fig. 1, 6 and 7, the pressure relief piece is a pressure relief piece 6 that is used to rupture and relieve pressure when the pressure in the filter element 2 is too high, a groove 51 is provided at one end of the pressure relief valve cover 5 connected to the filter element 2, and the pressure relief piece 6 is disposed in the groove 51.

In this embodiment, the pressure relief valve cover 5 includes a hollow groove 52, the hollow groove 52 is disposed on one side of the pressure relief plate 6 away from the filter core 2, a plurality of pressure relief holes 53 are radially formed in the hollow groove 52, a plurality of pressure relief grooves 31 are formed in the inner side wall of the pressure relief end cover 3, a water channel 7 is reserved between the filter core 2 and the pressure relief end cover 3, and the hollow groove 52, the pressure relief holes 53, the pressure relief grooves 31 are communicated with the water channel 7.

In this embodiment, as shown in fig. 6, the hollow tank 52 includes a drain chamber 521 for collecting deposited impurities, and the drain chamber 521 is disposed on a side of the pressure release hole 53 away from the filter element 2. After the pressure release sheet 6 is broken and opened, deposited impurities in the filter element 2 can enter the sewage draining cavity 521 for deposition.

In this embodiment, the pressure relief end cap 3 is connected with the pressure relief valve cap 5 through screw thread fit. The lower end face of the pressure relief valve cover 5 is flush with the lower end face of the pressure relief end cover 3, and a hexagonal head handle for conveniently unscrewing/screwing the pressure relief valve cover 5 is arranged.

In this embodiment, as shown in fig. 1 to 3, a water outlet joint 11 is disposed on one side of the cylinder 1, and support rings 12 for supporting the filter element 2 are disposed on both sides of the water outlet joint 11, and the support rings 12 are sleeved on the filter element 2 and provided with a plurality of water passing holes 13. Specifically, the water outlet joint 11 is arranged above one side of the cylinder body 1, the two sides close to the water outlet joint 11 are both provided with support rings 12, and the support rings 12 are also arranged below the filter core 2 to prevent the filter core 2 from bending deformation due to uneven circumferential stress caused by impurity blockage below.

In this embodiment, as shown in fig. 4 and 5, the filter element 2 includes a filter layer 21 and a cylindrical exoskeleton 22, the filter layer 21 is attached to an inner wall of the cylindrical exoskeleton 22, the filter layer 21 is formed by stacking multiple layers of filter screens, and a plurality of water permeable holes 23 are formed in the cylindrical exoskeleton 22.

In this embodiment, the other end of the cylinder 1 is provided with a water inlet end cover 4, one side of the water inlet end cover 4 is provided with a water inlet joint 41, the other side of the water inlet end cover 4 is provided with a positioning groove 42, the upper end of the filter core 2 is embedded into the positioning groove 42, and a high-pressure sealing ring is arranged between the upper end face of the filter core 2 and the water inlet end cover 4. Specifically, the water inlet connector 41 is arranged at the axis position of the water inlet end cover 4, the water inlet connector 41 is communicated with the inner side of the filter core 2 to facilitate the direct input of high-pressure water to be filtered, the positioning groove 42 is formed by encircling a convex ring protruding towards the direction of the filter core 2, the end head of the filter core 2 is inserted into the positioning groove 42, the end face of the filter core 2 and the water inlet end cover 4 are ensured to be sealed, the axis is coincident, the positioning groove 42 can circumferentially fix the end part of the filter core 2, and the installation and positioning of the filter core 2 and the sealing connection of the axial end face are facilitated.

In this embodiment, high-pressure sealing rings are respectively arranged between the two ends of the water inlet end cover 4, the pressure relief end cover 3 and the cylinder 1, and the water inlet end cover 4 and the pressure relief end cover 3 are respectively and fixedly connected with the two ends of the cylinder 1 through flanges. Specifically, the junction of the water inlet end cover 4 and the upper end face of the cylinder body 1 and the junction of the pressure relief end cover 3 and the lower end face of the cylinder body 1 are respectively provided with a high-pressure sealing ring for sealing the end faces, and the water inlet end cover 4 and the upper end face of the cylinder body 1 and the pressure relief end cover 3 and the lower end face of the cylinder body 1 are respectively and fixedly connected through flanges.

In this embodiment, the working principle is that the pressurized water flows into the filter element 2 from the water inlet joint 41, is filtered by the filter layer 21, flows out through the water permeable holes 23 on the cylindrical exoskeleton 22 to realize the filtration of the pressurized water, and the filtered water is finally output through the water outlet joint 11 at the upper end of the cylindrical body 1. When the filter element 2 is blocked and aggravated, the internal and external pressure difference is continuously increased, the pressure relief sheet 6 is broken and opened after the designed pressure difference is reached, the pressure water flowing into the filter element 2 passes through the hollow groove 52, the pressure relief groove 31, the pressure relief hole 53 and the water channel 7 and is output through the water outlet joint 11, so that the internal and external pressure difference of the filter element 2 is reduced and the filter element 2 is protected.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a high pressure filter equipment convenient to inspection clearance filter core, includes barrel (1) and set up in filter core (2) in barrel (1), its characterized in that, the one end of barrel (1) is provided with pressure release end cover (3), be equipped with on pressure release end cover (3) and be used for can be with when filter core (2) internal pressure is normal the end seal of filter core (2) and work as can automatic pressure release when filter core (2) internal pressure is too big pressure release valve gap subassembly, pressure release valve gap subassembly independently detachable connect in pressure release end cover (3).

2. The high-pressure filtering device according to claim 1, wherein the pressure relief valve cover assembly comprises a pressure relief valve cover (5) and a pressure relief piece, wherein the pressure relief piece is used for automatically relieving pressure when the internal pressure of the filter element (2) is overlarge, and the pressure relief valve cover (5) is in sealing connection with one end of the filter element (2) through the pressure relief piece.

3. The high-pressure filtering device according to claim 2, wherein the pressure release piece is a pressure release piece (6) which is used for breaking and releasing pressure when the internal pressure of the filter core (2) is too high, a groove (51) is arranged at one end of the pressure release valve cover (5) connected with the filter core (2), and the pressure release piece (6) is arranged in the groove (51).

4. The high-pressure filtering device according to claim 3, wherein the pressure relief valve cover (5) comprises a hollow groove (52), the hollow groove (52) is arranged on one side of the pressure relief piece (6) away from the filter core (2), a plurality of pressure relief holes (53) are radially formed in the hollow groove (52), a plurality of pressure relief grooves (31) are formed in the inner side wall of the pressure relief end cover (3), a water passing channel (7) is reserved between the filter core (2) and the pressure relief end cover (3), and the hollow groove (52), the pressure relief holes (53), the pressure relief grooves (31) and the water passing channel (7) are communicated.

5. The high pressure filter device according to claim 4, characterized in that the hollow tank (52) comprises a blow-down chamber (521) for collecting deposited impurities, the blow-down chamber (521) being arranged at the side of the pressure relief hole (53) remote from the filter core (2).

6. The high pressure filter device according to claim 5, characterized in that the pressure relief end cap (3) is connected with the pressure relief valve cap (5) by means of a screw fit.

7. The high-pressure filtering device according to any one of claims 1-6, wherein a water outlet joint (11) is arranged on one side of the cylinder (1), supporting rings (12) for supporting the filter core (2) are arranged on two sides of the water outlet joint (11), and the supporting rings (12) are sleeved on the filter core (2) and provided with a plurality of water through holes (13).

8. The high pressure filter device according to any one of claims 1-6, wherein the filter core (2) comprises a filter layer (21) and a cylindrical exoskeleton (22), the filter layer (21) is attached to the inner wall of the cylindrical exoskeleton (22), the filter layer (21) is formed by stacking multiple layers of filter screens, and a plurality of water permeable holes (23) are formed in the cylindrical exoskeleton (22).

9. The high-pressure filtering device according to any one of claims 1-6, wherein a water inlet end cover (4) is arranged at the other end of the cylinder body (1), a water inlet joint (41) is arranged at one side of the water inlet end cover (4), a positioning groove (42) is arranged at the other side of the water inlet end cover (4), the upper end of the filter core (2) is embedded into the positioning groove (42), and a high-pressure sealing ring is arranged between the upper end face of the filter core (2) and the water inlet end cover (4).

10. The high-pressure filtering device according to claim 9, wherein high-pressure sealing rings are respectively arranged between the water inlet end cover (4) and the pressure relief end cover (3) and the two ends of the cylinder body (1), and the water inlet end cover (4) and the pressure relief end cover (3) are respectively fixedly connected with the two ends of the cylinder body (1) through flanges.