CN210409713U

CN210409713U - High-pressure filter

Info

Publication number: CN210409713U
Application number: CN201921023789.7U
Authority: CN
Inventors: 张海洋
Original assignee: Wuxi Haizhuo Like Hydraulic Machinery Co ltd
Current assignee: Wuxi Haizhuo Like Hydraulic Machinery Co ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-04-28
Anticipated expiration: 2029-07-02

Abstract

The utility model relates to a high-pressure filter, which comprises a filter head, a cylinder body and a filter element; the filter head is fixed at the upper end of the barrel through a bolt, an upper cover is arranged at the upper part of the filter head, an oil inlet and an oil outlet are arranged on the filter head, a bypass valve component is arranged at an oil outlet in the filter head and comprises a baffle, a thimble and a spring, an opening is formed in the filter head and communicated with the barrel, the thimble is arranged on the filter head and is positioned right above the opening, the spring is sleeved on the thimble, and the baffle is arranged at the top end of the spring; a signal transmitter hole is formed in the filter head, an oil pressure alarm device is arranged in the signal transmitter hole, the signal transmitter hole is communicated with the oil outlet, a channel is arranged between the signal transmitter hole and the oil inlet, and the signal transmitter hole is connected with the oil inlet through the channel; the filter element is arranged in the cylinder body. The utility model provides a pair of high pressure filter when the oil pressure surpasses filter and bears the scope, can effectively send the warning model to alleviate the oil pressure to a certain extent.

Description

High-pressure filter

Technical Field

The utility model relates to a hydraulic oil filter technical field, especially a high pressure filter.

Background

The filter is an indispensable device on a medium conveying pipeline, is usually arranged on a pressure reducing valve, a pressure relief valve and a constant water level valve, and a filter cartridge with a certain specification of filter screen in the filter can block impurities. Filters can be generally classified into liquid filters and air filters. The general filter only focuses on the filtering effect, and is not known, when the impurities in the filter are accumulated to a certain degree and are not cleaned in time, the filtering effect of the filter is affected, and even the filter is damaged.

Chinese patent application publication No. CN103212236A discloses a large-diameter high-pressure filter for removing solid impurities from liquid. The two sides of the reversing valve are respectively connected with the material inlet and the material outlet of the filter, the reversing valve is a hydraulic reversing valve consisting of a valve shell, a valve, a pressure guide pipe, a hydraulic cylinder, a material inlet and outlet valve, magnetic steel, a valve position display, a partition plate, a hydraulic distributor, a hydraulic pump, a valve cover and a sealing ring, and the partition plate divides the valve shell into two parts. Two components consisting of two feeding and discharging valves, a hydraulic cylinder, two pressure guide pipes and a bracket are respectively fixed on the upper surface and the lower surface of the partition plate. One end of each pressure guide pipe is connected with a hydraulic cylinder, the other end of each pressure guide pipe is connected with a hydraulic pump, the other end of each hydraulic pump is connected with an oil tank, one end of the magnetic steel is fixed above the feeding valve, the hydraulic distributor and the hydraulic pump are arranged above the valve cover, and the hydraulic distributor is connected with the two oil cylinders. Compared with the currently used filter which uses a butterfly valve and the like for reversing, the filter has the advantages of convenient reversing, capability of filtering uninterruptedly, large filtering drift diameter and high pressure. However, the filter provided by the patent has the defects that the filter element is blocked due to the high-pressure condition, and no alarm device or buffer device exists when the oil pressure exceeds the bearing range of the filter, so that great potential safety hazard exists in the use process.

In view of the above, it is desirable to provide a high pressure filter.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high pressure filter when the oil pressure surpasss filter and bears the scope, can effectively send the warning model to alleviate the oil pressure to a certain extent.

In order to achieve the purpose of the utility model, the high-pressure filter comprises a filter head, a cylinder body and a filter element;

the filter head is fixed at the upper end of the barrel through a bolt, an upper cover is arranged at the upper part of the filter head, an oil inlet and an oil outlet are formed in the filter head, a bypass valve assembly is arranged at an oil outlet in the filter head and comprises a baffle, a thimble and a spring, an opening is formed in the filter head and communicated with the barrel, the thimble is arranged on the filter head and is positioned right above the opening, the spring is sleeved on the thimble, and the baffle is fixed at the top end of the spring; a signal transmitter hole is formed in the filter head, an oil pressure alarm device is arranged in the signal transmitter hole, the signal transmitter hole is communicated with the oil outlet, a channel is arranged between the signal transmitter hole and the oil inlet, and the signal transmitter hole is connected with the oil inlet through the channel; the filter element is arranged in the cylinder body.

Preferably, the upper part and the lower part of the cylinder body are both provided with filter element connecting seats, and the filter elements are fixed in the cylinder body through the filter element connecting seats.

Preferably, the filter element and the filter element connecting seat are directly provided with an O-shaped ring.

Preferably, the outer side surface of the cylinder body is provided with a plurality of reinforcing ribs.

The working principle is as follows: in the process of filtering, hydraulic oil enters the cylinder body through the oil inlet and flows out of the oil outlet after being filtered by the filter element; at the filterable in-process of hydraulic oil, the downthehole oil pressure alarm device of signalling ware detects the inside and outside oil pressure of barrel in real time, when surpassing the numerical value of settlement, can send out the police dispatch newspaper, and simultaneously, the oil pressure is also alleviated to a certain extent to the bypass valve subassembly that sets up in oil outlet department.

The utility model discloses a high pressure filter compares with prior art and has following advantage:

(1) the high-pressure filter provided by the utility model can detect the internal and external oil pressure of the cylinder in real time, ensure the safe operation of the filter, and meanwhile, the bypass valve component can relieve the oil pressure difference inside and outside the cylinder, further ensure the safe operation of the filter and prolong the service life of the equipment;

(2) the utility model provides a high pressure filter, simple structure, convenient operation is swift, safe and reliable.

Drawings

Fig. 1 is a cross-sectional view of a high pressure filter of the present invention;

FIG. 2 is an enlarged view of a portion of the filter cartridge of FIG. 1 attached to a filter head;

fig. 3 is a top view of a high pressure filter according to the present invention;

fig. 4 is a cross-sectional view of a filter head in a high pressure filter according to the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-4, a high-pressure filter comprises a filter head 1, a cylinder 4 and a filter element 5;

the filter head 1 is fixed at the upper end of the cylinder 4 through bolts, an upper cover is arranged at the upper part of the filter head 1, an oil inlet 2 and an oil outlet 3 are arranged on the filter head 1, a bypass valve component is arranged in the filter head 1 at the oil outlet 3 and comprises a baffle plate 12, a thimble 11 and a spring 10, an opening is arranged on the filter head 1 and communicated with the cylinder 4, the thimble 11 is arranged on the filter head 1 and is positioned right above the opening, the spring 10 is sleeved on the thimble 11, and the baffle plate 12 is fixed at the top end of the spring 10; when the oil pressure in the cylinder 4 is too high, the oil pressure jacks up the blocking piece, and the hydraulic oil in the cylinder 4 flows out through the oil outlet 3 through the opening; a signal transmitter hole 8 is formed in the filter head 1, an oil pressure alarm device is arranged in the signal transmitter hole 8, the signal transmitter hole 8 is communicated with the oil outlet 3, a channel 9 is arranged between the signal transmitter hole 8 and the oil inlet 2, and the signal transmitter hole 8 is connected with the oil inlet 2 through the channel 9; because the sender hole 8 is respectively connected with the oil outlet 3 and the oil inlet 2, the internal oil pressure alarm device can calculate the oil pressure difference, and when the oil pressure difference exceeds a set numerical value, an alarm can be given out to remind a worker to replace a filter element in time or check and maintain the filter in time;

the filter element 5 is arranged in the cylinder 4, in order to ensure that the filter element 5 can be stably fixed in the cylinder 4, the upper part and the lower part of the cylinder 4 are both provided with filter element connecting seats 6, and the filter element 5 is fixed in the cylinder 4 through the filter element connecting seats 6; in order to avoid rigid contact between the filter element 5 and the filter element connecting seat 6 and also for the sealing property between the filter element connecting seat 6 and the filter element 5, the filter element 5 and the filter element connecting seat 6 are directly provided with an O-shaped ring 7.

In order to enhance the strength of the cylinder 4, a plurality of reinforcing ribs are arranged on the outer side surface of the cylinder 4.

Description of the operation: in the process of filtering, hydraulic oil enters the cylinder body 4 through the oil inlet 2 and flows out of the oil outlet 3 after being filtered by the filter element 5; at the filterable in-process of hydraulic oil, the oil pressure alarm device in the signalling device hole 8 detects the inside and outside oil pressure of barrel in real time, when surpassing the numerical value of settlement, can send out the police dispatch newspaper, and simultaneously, the oil pressure is also alleviated to a certain extent to the bypass valve subassembly that sets up in oil-out 3 department.

In the description of the present specification, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of describing the technical solutions of the present patent and for simplification of the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present patent application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this patent application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this specification, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present specification can be understood by those of ordinary skill in the art as appropriate.

In this specification, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A high-pressure filter is characterized by comprising a filter head, a cylinder body and a filter element;

2. The high pressure filter of claim 1, wherein the cartridge body is provided at upper and lower portions thereof with cartridge connecting seats, and the cartridge is fixed in the cartridge body by the cartridge connecting seats.

3. The high pressure filter according to claim 1 or 2, wherein the filter element and the filter element connecting seat are directly provided with an O-shaped ring.

4. A high pressure filter according to claim 1 or 2, wherein the outer side of the cartridge body is provided with a plurality of ribs.