Pressurizing type filtering device

Abstract

The invention relates to the technical field of filtering devices, in particular to a pressurized filtering device which comprises a rack, a liquid inlet end, a pressurized filtering assembly and a liquid return end. The confining pressure adjusting assembly arranged on the pressurization type filtering device can effectively improve the filtering performance of the filter element. The confining pressure adjusting assembly uniformly pressurizes the filter element through the rubber sleeve and the air pressure system, the problem that a flow channel is easily formed when a traditional filter element conducts high-pressure filtering is solved, and therefore the filtering effect is remarkably improved, and the service life of the filter element is remarkably prolonged. The liquid inlet end clamp holder assembly and the liquid outlet end clamp holder assembly are optimized, so that liquid can be uniformly distributed when entering and flowing out of the filter element, the utilization efficiency of the filter element is further improved, and the problems of non-uniform liquid dispersion and local overload of the filter element of a traditional filter device are solved. According to the invention, not only can the filtering efficiency be enhanced, but also the risk of production interruption caused by local blockage of the filter element can be reduced, and a more reliable filtering guarantee is provided for industrial production.

Description

Technical Field

[0001] The invention relates to the technical field of filtering devices, in particular to a pressurized filtering device. Background Art

[0002] In the modern industrial production process, liquid filtration is one of the key links to ensure product quality and production efficiency. With the continuous advancement of science and technology and the increasing production needs, traditional filtration devices have gradually exposed many shortcomings and are difficult to meet the needs of complex and changing industrial scenarios. When dealing with high-viscosity liquids containing a large amount of impurities, traditional filtration devices have low filtration efficiency, which can easily lead to clogging of the filter element, affecting the smooth progress of the entire production process. In addition, since the filter element is mostly a porous structure, it is easy to produce flow channels in the filter element during high-pressure filtration, which in turn affects the filtration effect of the filter element.

[0003] In addition, traditional filtering devices also have many problems in terms of liquid dispersion uniformity, sealing reliability and ease of operation. For example, the liquid is unevenly distributed when entering the filter element, resulting in local overload of the filter element and reducing the service life of the filter element; the sealing structure design is unreasonable, which is prone to leakage, affecting the filtration accuracy and even causing environmental pollution; the operating process is cumbersome and requires professionals to perform complex operations, which increases labor costs and the risk of misoperation.

[0004] Therefore, developing a pressurized filtration device that can filter efficiently, operate stably, is easy to operate and has strong adaptability has become an urgent issue to be solved in the industry. Summary of the invention

[0005] The present invention aims to provide a pressurized filtering device, which effectively improves the density of the filter element by applying pressure on the side of the filter element, avoids the formation of flow channels at the filter element, and affects the filtering effect.

[0006] In order to solve the above technical problems, the technical solutions provided by the present invention are as follows:

[0007] A pressurized filtering device comprises a frame, a liquid inlet end, a pressurized filtering assembly and a liquid return end;

[0008] The liquid inlet end, the pressure filter assembly and the liquid return end are all arranged on the frame;

[0009] The pressurized filter assembly comprises a cylinder, a liquid inlet end clamp assembly, a liquid outlet end clamp assembly and a filter element, wherein the liquid inlet end clamp assembly and the liquid outlet end clamp assembly are respectively arranged at both ends of the cylinder, and a confining pressure regulating assembly is arranged on the inner wall of the cylinder;

[0010] The confining pressure regulating assembly comprises a rubber sleeve, an air source, a pressure regulator and a vent pipe, the two ends of the rubber sleeve are respectively fixed to the liquid inlet clamp assembly and the liquid outlet clamp assembly, and are respectively sealed and connected to the liquid inlet clamp assembly and the liquid outlet clamp assembly, and the filter element is arranged in the rubber sleeve; the two ends of the vent pipe are respectively connected to the side wall of the cylinder and the air source, and the pressure regulator is arranged on the vent pipe; after the vent pipe is ventilated, air pressure is formed at the outer side of the rubber sleeve and the inner wall of the cylinder, and the filter element is pressurized by the rubber sleeve, and the cylinder is also provided with a clamp pressure relief valve for controlling the pressure between the outer side of the rubber sleeve and the inner wall of the cylinder;

[0011] The liquid inlet end inputs the testing liquid into the filter element from the liquid inlet end clamp assembly, passes through the filter element under a pressurized state, and then is output from the liquid outlet end clamp assembly to the liquid return end.

[0012] As an improvement, the liquid inlet end clamp assembly includes: a liquid inlet end clamp fixing seat, an input plug and a orifice plate, the liquid inlet end clamp fixing seat is fixed on the cylinder, and the inlet and outlet plugs and the orifice plate are sequentially arranged between the liquid inlet end clamp fixing seat and the filter element;

[0013] An input hole is provided at the center of the liquid inlet end clamp fixing seat; a center hole is provided on the input plug, and a liquid separation hole is provided outside the center hole; and evenly distributed second liquid separation holes are provided on the orifice plate.

[0014] As an improvement, the outlet end clamp assembly comprises: an outlet end clamp fixing seat, an output plug and a second orifice plate, the outlet end clamp fixing seat is fixed on the cylinder, and the output plug and the second orifice plate are arranged in sequence between the inlet end clamp fixing seat and the filter element;

[0015] The liquid outlet end clamping fixing seat is provided with a liquid outlet hole.

[0016] As an improvement, the sides of the input plug and the output plug are provided with inclined portions;

[0017] The two ends of the rubber sleeve are provided with second inclined portions which match the inclined portions. Under the action of the external air pressure, the rubber sleeve is pressed against the inclined portions to form a seal.

[0018] As an improvement, the gas source is a high-pressure gas cylinder, and the pressure regulator includes a pressure regulating valve arranged at the outlet of the high-pressure gas cylinder and a confining pressure control valve close to the cylinder.

[0019] As an improvement, the ventilation pipes are respectively connected near the two ends of the cylinder.

[0020] As an improvement, the liquid inlet end includes a liquid storage tank, a liquid suction and injection pump, and an input pipe, and the input pipe is connected to the input hole;

[0021] The liquid suction and injection pump sucks the liquid in the liquid storage tank into the pump and then transports it to the pressure filter assembly through the input pipe;

[0022] The input pipe is provided with a flow meter, a liquid inlet valve and a liquid inlet pressure gauge.

[0023] As an improvement, the liquid suction and injection pump is a manual structure, including a piston pump body and a rotating handle, and the rotating handle is used to control the reciprocating movement of the piston in the piston pump body to perform liquid suction and injection operations.

[0024] As an improvement, the liquid return end includes: a liquid return pipe and a liquid return receiving tank;

[0025] The liquid return pipe is connected to the liquid outlet to transport the filtrate of the pressurized filtration assembly to the liquid return receiving tank;

[0026] The liquid return pipe is provided with a liquid outlet control valve and a second flow meter.

[0027] As an improvement, scales are provided on the liquid storage tank and the return liquid receiving tank.

[0028] The present invention has the advantages that:

[0029] The pressurized filtering device of the present invention is provided with a confining pressure regulating assembly, which can effectively improve the filtering performance of the filter element. The confining pressure regulating assembly utilizes a rubber sleeve and an air pressure system to uniformly pressurize the filter element, avoiding the flow channel problem that is easily formed during high-pressure filtering of the traditional filter element, thereby significantly improving the filtering effect and the service life of the filter element. The present invention optimizes the liquid inlet end clamp assembly and the liquid outlet end clamp assembly so that the liquid can be evenly distributed when entering and flowing out of the filter element, further improving the utilization efficiency of the filter element, and solving the problems of uneven liquid dispersion and local overload of the filter element in traditional filtering devices. The present invention can not only enhance the filtering efficiency, but also reduce the risk of production interruption due to local blockage of the filter element, providing a more reliable filtering guarantee for industrial production.

[0030] The present invention forms a tight seal under the action of air pressure by matching the rubber sleeve with the inclined surface of the clamp assembly, which can effectively solve the problem of unreasonable sealing structure and easy leakage of traditional filtering devices. The present invention can not only improve the filtering accuracy, but also avoid environmental pollution caused by leakage, which meets the requirements of modern industry for environmental protection and safety.

[0031] The operation process of the present invention is simple and easy to understand. The liquid inlet end adopts a manual liquid suction and injection pump, and the liquid can be sucked and delivered by rotating the handle, without complex electrical control, which reduces the equipment cost and operation difficulty. At the same time, the liquid storage tank and the return liquid receiving tank of the device are provided with scales, which can visually observe the input and output of the liquid, and by comparing the scale changes, the content of particulate matter in the filtrate can also be calculated, which provides convenience for monitoring the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1This is a structural diagram of a pressurized filtering device in Example 1.

[0033] Figure 2 This is a side view of a pressurized filtering device in Example 1.

[0034] Figure 3 This is a structural diagram of a pressurized filter assembly in a pressurized filter device in Example 1.

[0035] Figure 4 This is a structural diagram of a liquid inlet end clamp fixing seat in a pressurized filtering device in Example 1.

[0036] Figure 5 This is a structural diagram of an input plug in a pressurized filtering device in Example 1.

[0037] Figure 6 This is a structural diagram of a porous plate in a pressurized filtering device in Example 1.

[0038] Figure 7 This is a structural diagram of a rubber sleeve in a pressurized filtering device in Example 1.

[0039] Figure 8 This is a structural diagram of a confining pressure regulating assembly in a pressurized filtering device in Example 1.

[0040] Fig. 9 This is a structural diagram of the liquid inlet end of a pressurized filtering device in Example 1.

[0041] Fig.10 This is a structural diagram of the liquid return end of a pressurized filtration device in Example 1.

[0042] Indicated in the figure:

[0043] 1- rack;

[0044] 2-liquid inlet end, 21-liquid storage tank, 22-liquid suction and injection pump, 23-input pipe, 231-flow meter, 232-liquid inlet valve, 233-liquid inlet pressure gauge;

[0045] 3-pressurized filter assembly, 31-cylinder, 32-liquid inlet end clamp assembly, 321-liquid inlet end clamp fixing seat, 3211-input hole, 322-input plug, 3221-center hole, 3222-liquid separation hole, 3223-inclined portion, 323-orifice plate, 3231-second liquid separation hole, 33-liquid outlet end clamp assembly, 331-liquid outlet end clamp fixing seat, 332-output plug, 333-second orifice plate, 3311-liquid outlet, 34-filter element, 35-confining pressure regulating assembly, 351-rubber sleeve, 3511-second inclined portion, 352-gas source, 353-pressure regulator, 3531-pressure regulating valve, 3532-confining pressure control valve, 354-vent pipe, 36-holder pressure relief valve;

[0046] 4-liquid return end, 41-liquid return pipe, 411-liquid outlet control valve, 412-second flow meter, 42-liquid return receiving tank. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0048] Example 1

[0049] This embodiment discloses a pressurized filtering device, comprising a frame 1, a liquid inlet end 2, a pressurized filtering assembly 3 and a liquid return end 4. The liquid inlet end 2, the pressurized filtering assembly 3 and the liquid return end 4 are all arranged on the frame 1.

[0050] The pressurized filter assembly 3 includes a cylinder 31, a liquid inlet clamp assembly 32, a liquid outlet clamp assembly 33 and a filter element 34. The liquid inlet clamp assembly 32 and the liquid outlet clamp assembly 33 are respectively arranged at both ends of the cylinder 31, and a confining pressure regulating assembly 35 is provided on the inner wall of the cylinder 31.

[0051] The confining pressure regulating assembly 35 includes a rubber sleeve 351, an air source 352, a pressure regulator 353 and a vent pipe 354. The two ends of the rubber sleeve 351 are respectively fixed to the liquid inlet clamp assembly 32 and the liquid outlet clamp assembly 33, and are respectively sealed and connected to the liquid inlet clamp assembly 32 and the liquid outlet clamp assembly 33. The filter element 34 is arranged in the rubber sleeve 351. The two ends of the vent pipe 354 are respectively connected to the side wall of the cylinder 31 and the air source 352, and the pressure regulator 353 is arranged on the vent pipe 354. After the vent pipe 354 is ventilated, air pressure is formed at the outer side of the rubber sleeve 351 and the inner wall of the cylinder 31, and the filter element 34 is pressurized through the rubber sleeve 351. The cylinder 31 is also provided with a clamp pressure relief valve 36 for controlling the pressure between the outer side of the rubber sleeve 351 and the inner wall of the cylinder 31.

[0052] The liquid inlet end 2 inputs the test liquid from the liquid inlet end clamp assembly 32 into the filter element 34 , and after passing through the filter element 34 under a pressurized state, the test liquid is output from the liquid outlet end clamp assembly 33 to the liquid return end 4 .

[0053] The liquid inlet end clamp assembly 32 includes: a liquid inlet end clamp fixing seat 321, an input plug 322 and an orifice plate 323. The liquid inlet end clamp fixing seat 321 is fixed on the cylinder 31, and the input plug 322 and the orifice plate 323 are arranged between the liquid inlet end clamp fixing seat 321 and the filter element 34 in sequence. An input hole 3211 is arranged at the center of the liquid inlet end clamp fixing seat 321; a center hole 3221 is arranged on the input plug 322, and a liquid separation hole 3222 is arranged outside the center hole 3221; and a uniformly distributed second liquid separation hole 3231 is arranged on the orifice plate 323. After the liquid enters from the input hole 3211, it is initially dispersed at the input plug 322, and then further dispersed at the orifice plate 323, which can be effectively dispersed to the entire side of the filter element 34, thereby improving the utilization efficiency of the filter element 34.

[0054] The liquid outlet clamp assembly 33 includes: a liquid outlet clamp fixing seat 331, an output plug 332 and a second orifice plate 333. The liquid outlet clamp fixing seat 331 is fixed on the cylinder 31, and the output plug 332 and the second orifice plate 333 are sequentially arranged between the liquid outlet clamp fixing seat 331 and the filter element 34. The liquid outlet clamp fixing seat 331 is provided with a liquid outlet hole 3311.

[0055] The sides of the input plug 322 and the output plug 332 are provided with inclined portions 3223; both ends of the rubber sleeve 351 are provided with second inclined portions 3511 matching with the inclined portions 3223. Under the action of the external air pressure, the rubber sleeve 351 is pressed against the inclined portions 3223 to form a seal.

[0056] The gas source 352 is a high-pressure gas cylinder, and the pressure regulator 353 includes a pressure regulating valve 3531 disposed at the outlet of the high-pressure gas cylinder and a confining pressure control valve 3532 near the cylinder 31. When in use, the output pressure of the gas source 352 can be adjusted by the pressure regulating valve 3531, and the input pressure can be further adjusted by the confining pressure control valve 3532. When the air pressure between the outer side of the rubber sleeve 351 and the inner wall of the cylinder 31 is too high, it can be adjusted by the clamper pressure relief valve 36.

[0057] The vent pipes 354 are respectively connected to positions close to both ends of the cylinder 31 , so as to ensure that the pressure between the outer side of the rubber sleeve 351 and the inner wall of the cylinder 31 is balanced.

[0058] The liquid inlet end 2 includes a liquid storage tank 21, a liquid suction and injection pump 22, and an input pipe 23, and the input pipe 23 is connected to the input hole 3211. The liquid suction and injection pump 22 sucks the liquid in the liquid storage tank 21 into the pump and then transports it to the pressure filter assembly 3 through the input pipe 23. The input pipe 23 is provided with a flow meter 231, a liquid inlet valve 232 and a liquid inlet pressure gauge 233.

[0059] The liquid suction and injection pump 22 is a manual structure, comprising a piston pump body 221 and a rotating handle 222. The rotating handle 222 is used to control the reciprocating movement of the piston in the piston pump body 221 to perform liquid suction and injection operations.

[0060] The liquid return end 4 includes a liquid return pipe 41 and a liquid return receiving tank 42. The liquid return pipe 41 is connected to the liquid outlet hole 3311 to transport the filtrate of the pressure filter assembly 3 to the liquid return receiving tank 42. The liquid return pipe 41 is provided with a liquid outlet control valve 411 and a second flow meter 412.

[0061] The liquid storage tank 21 and the return liquid receiving tank 42 are provided with scales, and the content of particulate matter in the filtrate is calculated by comparing the changes in the scales on the liquid storage tank 21 and the return liquid receiving tank 42 .

[0062] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pressurized filtering device, characterized in that: It includes a frame, a liquid inlet end, a pressure filter assembly and a liquid return end; The liquid inlet end, the pressure filter assembly and the liquid return end are all arranged on the frame; The pressurized filter assembly comprises a cylinder, a liquid inlet end clamp assembly, a liquid outlet end clamp assembly and a filter element, wherein the liquid inlet end clamp assembly and the liquid outlet end clamp assembly are respectively arranged at both ends of the cylinder, and a confining pressure regulating assembly is arranged on the inner wall of the cylinder; The confining pressure regulating assembly comprises a rubber sleeve, an air source, a pressure regulator and a vent pipe, the two ends of the rubber sleeve are respectively fixed to the liquid inlet clamp assembly and the liquid outlet clamp assembly, and are respectively sealed and connected to the liquid inlet clamp assembly and the liquid outlet clamp assembly, and the filter element is arranged in the rubber sleeve; the two ends of the vent pipe are respectively connected to the side wall of the cylinder and the air source, and the pressure regulator is arranged on the vent pipe; after the vent pipe is ventilated, air pressure is formed at the outer side of the rubber sleeve and the inner wall of the cylinder, and the filter element is pressurized by the rubber sleeve, and the cylinder is also provided with a clamp pressure relief valve for controlling the pressure between the outer side of the rubber sleeve and the inner wall of the cylinder; The liquid inlet end inputs the testing liquid into the filter element from the liquid inlet end clamp assembly, passes through the filter element under a pressurized state, and then is output from the liquid outlet end clamp assembly to the liquid return end.

2. A pressurized filtration device according to claim 1, characterized in that: The liquid inlet end clamp assembly comprises: a liquid inlet end clamp fixing seat, an input plug and a orifice plate, wherein the liquid inlet end clamp fixing seat is fixed on the cylinder, and the inlet and outlet plugs and the orifice plate are sequentially arranged between the liquid inlet end clamp fixing seat and the filter element; An input hole is provided at the center of the liquid inlet end clamp fixing seat; a center hole is provided on the input plug, and a liquid separation hole is provided outside the center hole; and evenly distributed second liquid separation holes are provided on the orifice plate.

3. A pressurized filtration device according to claim 1, characterized in that: The liquid outlet clamp assembly comprises: a liquid outlet clamp fixing seat, an output plug and a second orifice plate, the liquid outlet clamp fixing seat is fixed on the cylinder, and the output plug and the second orifice plate are sequentially arranged between the liquid inlet clamp fixing seat and the filter element; The liquid outlet end clamping fixing seat is provided with a liquid outlet hole.

4. A pressurized filtration device according to claim 2 or 3, characterized in that: The sides of the input plug and the output plug are provided with inclined portions; The two ends of the rubber sleeve are provided with second inclined portions which match the inclined portions. Under the action of the external air pressure, the rubber sleeve is pressed against the inclined portions to form a seal.

5. A pressurized filtration device according to claim 1, characterized in that: The gas source is a high-pressure gas cylinder, and the pressure regulator includes a pressure regulating valve arranged at the outlet of the high-pressure gas cylinder and a confining pressure control valve close to the cylinder.

6. A pressurized filtering device according to claim 1, characterized in that: The ventilation pipes are respectively connected to positions close to both ends of the cylinder.

7. A pressurized filtering device according to claim 2, characterized in that: The liquid inlet end includes a liquid storage tank, a liquid suction and injection pump, and an input pipe, and the input pipe is connected to the input hole; The liquid suction and injection pump sucks the liquid in the liquid storage tank into the pump and then transports it to the pressure filter assembly through the input pipe; The input pipe is provided with a flow meter, a liquid inlet valve and a liquid inlet pressure gauge.

8. A pressurized filtering device according to claim 7, characterized in that: The liquid suction and injection pump is a manual structure, comprising a piston pump body and a rotating handle, wherein the rotating handle is used to control the reciprocating movement of the piston in the piston pump body to perform liquid suction and injection operations.

9. A pressurized filtering device according to claim 3, characterized in that: The liquid return end comprises: a liquid return pipe and a liquid return receiving tank; The liquid return pipe is connected to the liquid outlet to transport the filtrate of the pressurized filtration assembly to the liquid return receiving tank; The liquid return pipe is provided with a liquid outlet control valve and a second flow meter.

10. A pressurized filtering device according to claim 7 or 9, characterized in that: There are scales on the liquid storage tank and the return liquid receiving tank.

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