A high efficiency filtration membrane module

Abstract

The application relates to the technical field of filtering membranes, in particular to a high-efficiency filtering membrane assembly which comprises a membrane shell and two end covers. A sealing ring is sleeved at the joint of the end cover and the membrane shell. A hoop assembly is arranged on the sealing ring. The hoop assembly comprises two hoop bodies and two connecting pieces. The two hoop bodies are respectively referred to as a first hoop body and a second hoop body. The connecting piece comprises a first rotating plate and a second rotating plate. The first rotating plate is rotatably installed on the first hoop body through a first rotating sleeve. The second rotating plate is rotatably installed on the second hoop body through a second rotating sleeve. When the hoop assembly is installed, the sealing ring will generate rolling friction between the first rotating sleeve and the second rotating sleeve, so that the first hoop body and the second hoop body are prevented from synchronously moving by pushing the sealing ring during butt joint of the first hoop body and the second hoop body, and the tightness of the cooperation of the sealing ring with the joint of the membrane shell and the end cover is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of filter membrane, in particular to a high-efficiency filter membrane assembly. BACKGROUND

[0002] As the core carrier of medium separation technology, filter membrane (full name: microporous filter membrane) is widely used in various fields due to its advantages of retaining impurities by membrane pores and simple processing flow. The structure sealing of high-efficiency filter membrane assembly, as an integrated application unit of filter membrane, directly determines the filtration precision and operation stability. The core structure of the existing filter membrane assembly usually includes a membrane shell and an end cover. The connection mode of the two is mainly hoop connection. Two semicircular hoops are spliced at the connection of the membrane shell and the end cover. The fastening is realized by tightening the bolts at both ends of the hoop. At the same time, a sealing ring is arranged at the joint surface of the membrane shell and the end cover. The sealing ring is deformed elastically by the pressing force of the hoop to fill the gap between the joint surfaces and achieve sealing. However, before the bolts are tightened, the first hoop body and the second hoop body are prone to rotate or fall off relative to the membrane shell, resulting in that the installation is not quick and convenient.

[0003] Chinese patent CN218012089U discloses a quick-assembly membrane shell of a water treatment device. An annular groove is formed on the connecting cylinder. A rubber sleeve is arranged in the annular groove, and a gap is left between the rubber sleeve and the first fixed step. During installation, the first hoop body and the second hoop body are first inserted into the gap, so that the first hoop body and the second hoop body can be limited, preventing the first hoop body and the second hoop body from falling off quickly. The distance of the gap is less than the thickness of the first hoop body and the second hoop body. The rubber sleeve can extrude the first hoop body and the second hoop body, further preventing the first hoop body and the second hoop body from falling off. However, during the process of inserting the first hoop body and the second hoop body into the gap and tightening the bolts, the first hoop body and the second hoop body will slide against the surface of the sealing ring, which will push the sealing ring to move, causing the sealing ring to deviate from the preset sealing position of the membrane shell and the end cover. The sealing ring is not pressed uniformly with the joint surface of the membrane shell and the end cover, and gaps appear in some areas, which eventually leads to a decline in sealing effect and affects the normal use of the filter membrane assembly. SUMMARY

[0004] The present application provides a high-efficiency filter membrane assembly to solve the problem that the sealing ring is easily pushed and moved by the hoop body during the installation of the hoop of the existing filter membrane assembly, causing the sealing ring to deviate from the preset sealing position of the membrane shell and the end cover, the sealing effect is reduced, and the normal use of the filter membrane assembly is affected.

[0005] The high-efficiency filtering membrane assembly adopts the technical scheme as follows: a high-efficiency filtering membrane assembly, comprising a membrane shell and two end covers, the membrane shell is arranged in the vertical direction, the two end covers are respectively sleeved on the two ends of the membrane shell, and a sealing ring is sleeved on the connection part of the end cover and the membrane shell; a hoop assembly is arranged on the sealing ring; the hoop assembly comprises two hoop bodies and two connecting pieces, the two hoop bodies are both semicircular structures and can be mutually docked; the two connecting pieces are respectively arranged at the docking parts of the two hoop bodies; the two hoop bodies are respectively referred to as a first hoop body and a second hoop body, the connecting piece comprises a first rotating plate, a second rotating plate, a first centering plate and a second centering plate, the first rotating plate is rotatably installed on the first hoop body through a first rotating sleeve, and the second rotating plate is rotatably installed on the second hoop body through a second rotating sleeve; the first rotating sleeve and the second rotating sleeve are both arranged in the vertical direction, and the first rotating sleeve and the second rotating sleeve can be connected through a pin shaft; the surfaces of the first centering plate and the second centering plate are rough and both have elasticity; the first centering plate is installed on the first hoop body, the second centering plate is installed on the second hoop body, the first centering plate can abut against the second rotating sleeve, and the second centering plate can abut against the first rotating sleeve; the hoop assembly has a first state and a second state, when in the first state, the first rotating sleeve and the second rotating sleeve both abut against the sealing ring and can rotate relative to the sealing ring in the vertical direction; when in the second state, the second rotating sleeve abuts against the first centering plate and can rotate relative to the first centering plate, and the first rotating sleeve abuts against the second centering plate and can rotate relative to the second centering plate.

[0006] Further, a first matching sleeve for rotating cooperation with the first rotating sleeve is arranged on the first hoop body, and a second matching sleeve for rotating cooperation with the second rotating sleeve is arranged on the second hoop body; a clamping sleeve is arranged on the first matching sleeve and the second matching sleeve, and the clamping sleeve can be telescopic relative to the first matching sleeve and the second matching sleeve arranged correspondingly; the clamping sleeves on the first matching sleeve and the second rotating sleeve are sequentially arranged in the circumferential direction of the first hoop body, and the end of the clamping sleeve on the first matching sleeve close to the second rotating sleeve in the circumferential direction of the first hoop body is wedge-shaped; the clamping sleeves on the second matching sleeve and the first rotating sleeve are sequentially arranged in the circumferential direction of the second hoop body, and the end of the clamping sleeve on the second matching sleeve close to the first rotating sleeve in the circumferential direction of the second hoop body is wedge-shaped.

[0007] Further, the first matching sleeve and the second matching sleeve are connected with the clamping sleeves arranged correspondingly through first elastic pieces, and the first elastic pieces are arranged in the vertical direction.

[0008] Further, when the hoop assembly is switched from the first state to the second state, the arc length corresponding to the angle of rotation of the first rotating sleeve and the second rotating sleeve in the vertical direction is equal to the arc length passed by the first rotating sleeve and the second rotating sleeve on the sealing ring.

[0009] Further, the inner ring of the first hoop body and the inner ring of the second hoop body are each provided with two adjusting members, the two adjusting members are arranged face to face in the vertical direction, and the sealing ring is located between the two adjusting members; the adjusting member comprises a first adjusting ring and two second adjusting rings, the first adjusting ring is a semicircular structure and is coaxially arranged with the first hoop body or the second hoop body corresponding to the first adjusting ring, and the two second adjusting rings are each an arc structure and are coaxially arranged with the first adjusting ring; the two second adjusting rings in the same adjusting member are each connected with the first rotating plate on the first hoop body corresponding to the two second adjusting rings or the second rotating plate on the second hoop body corresponding to the two second adjusting rings through a connecting rope; in the vertical direction, the first adjusting ring is located between the second adjusting ring and the sealing ring and abuts against the second adjusting ring and the sealing ring respectively, and the surfaces abutting against each other of the first adjusting ring and the second adjusting ring are each an inclined surface.

[0010] Further, the inner ring of the first hoop body and the inner ring of the second hoop body are each provided with two adjusting members, the two adjusting members are arranged face to face in the vertical direction, and the sealing ring is located between the two adjusting members; the adjusting member comprises a first adjusting ring and two second adjusting rings, the first adjusting ring is a semicircular structure and is coaxially arranged with the first hoop body or the second hoop body corresponding to the first adjusting ring, and the two second adjusting rings are each an arc structure and are coaxially arranged with the first adjusting ring; the two second adjusting rings in the same adjusting member are each connected with the first rotating plate on the first hoop body corresponding to the two second adjusting rings or the second rotating plate on the second hoop body corresponding to the two second adjusting rings through a connecting rope; in the vertical direction, the first adjusting ring is located between the second adjusting ring and the sealing ring and abuts against the second adjusting ring and the sealing ring respectively, and the surfaces abutting against each other of the first adjusting ring and the second adjusting ring are each an inclined surface.

[0011] Further, the connecting member further comprises a clamping assembly, the clamping assembly comprises a main frame body and two clamping rods; the main frame body is detachably installed at the abutting position of the first hoop body and the second hoop body, the two clamping rods are sequentially arranged on the main frame body in the reference axis direction and can approach or move away from each other in the reference axis direction, and the reference axis direction is the tangential direction of the first hoop body; the end face of the first rotating plate towards the first hoop body side is referred to as a first end face, and the end face of the second rotating plate towards the second hoop body side is referred to as a second end face; the two clamping rods abut against the first end face and the second end face respectively, and when the two clamping rods approach each other in the reference axis direction on the main frame body, the first rotating plate and the second rotating plate can rotate around the vertical direction and approach each other, and when the two clamping rods move away from each other in the reference axis direction on the main frame body, the first rotating plate and the second rotating plate can rotate around the vertical direction and move away from each other.

[0012] Further, the clamping assembly further comprises a screw rod, the screw rod is arranged on the main frame body in the reference axis direction and can rotate around its own axis, the screw rod is screw-connected with the two clamping rods, and rotation of the screw rod around its own axis can make the two clamping rods approach or move away from each other in the reference axis direction.

[0013] Further, the screw rod is provided with a first threaded segment and a second threaded segment, the first threaded segment is used for screwing with one of the clamping rods, the second threaded segment is used for screwing with the other clamping rod, and the screwing directions of the first threaded segment and the second threaded segment are opposite.

[0014] Further, the clamping assembly further comprises a motor and a temperature sensing element; the motor is installed on the main frame body and can drive the screw rod to rotate around its own axis; the temperature sensing element is installed on the main frame body, the temperature sensing element comprises a temperature sensor and a control module, the temperature sensor is electrically connected with the motor through the control module, the temperature sensor is used for sensing the temperature of the membrane shell and converting it into an output signal transmitted to the control module, and the control module makes the motor start and stop.

[0015] The beneficial effects of the present application are: the high-efficiency filter membrane assembly of the present application sets the first rotating sleeve and the first clamp body in split connection and makes them rotate and cooperate, sets the second rotating sleeve and the second clamp body in split connection and makes them rotate and cooperate. When installing the clamp assembly, the first rotating sleeve and the second rotating sleeve can rotate around the vertical direction relative to the sealing ring, so that the rolling friction between the sealing ring and the first rotating sleeve and the second rotating sleeve is generated, the sealing ring is prevented from moving synchronously with the first clamp body and the second clamp body to cause the offset of the sealing ring during the butt joint of the first clamp body and the second clamp body, and the tightness of the cooperation between the sealing ring and the connection parts of the membrane shell and the end cover is improved. After the first centering plate abuts against the second rotating sleeve and the second centering plate abuts against the first rotating sleeve, the surfaces of the first centering plate and the second centering plate are set as rough surfaces, so that the friction between the first centering plate and the second rotating sleeve and the friction between the second centering plate and the first rotating sleeve are increased, and the first clamp body and the second clamp body are further fixed, so that the first clamp body and the second clamp body are prevented from falling off. The first clamp body is moved by the first centering plate, the second clamp body is moved by the second centering plate, and the first clamp body and the second clamp body are further moved close to each other, so that the first clamp body and the second clamp body can be tightly butt jointed, the alignment adjustment time during installation is reduced, and the installation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0017] Figure 1 FIG. 1 is a schematic diagram of the overall structure of an embodiment of the high-efficiency filter membrane assembly of the present application;

[0018] Figure 2 FIG. 1 is a schematic diagram of the overall structure of an embodiment of the high-efficiency filter membrane assembly of the present application;

[0019] Figure 3 FIG. 1 is a schematic diagram of the overall structure of an embodiment of the high-efficiency filter membrane assembly of the present application; Figure 2 FIG. 1 is a schematic diagram of the overall structure of an embodiment of the high-efficiency filter membrane assembly of the present application;

[0020] Figure 4 is a front view of the overall structure of an embodiment of a high-efficiency filtration membrane assembly of the present application;

[0021] Figure 5 is a front view of the overall structure of an embodiment of a high-efficiency filtration membrane assembly of the present application; Figure 4 is a sectional view along B-B;

[0022] Figure 6 is a sectional view of the overall structure of an embodiment of a high-efficiency filtration membrane assembly of the present application;

[0023] Figure 7 is a front view of the overall structure of an embodiment of a high-efficiency filtration membrane assembly of the present application; Figure 6 is an enlarged view of C;

[0024] Figure 8 is a front view of the overall structure of an embodiment of a high-efficiency filtration membrane assembly of the present application;

[0025] Figure 9 is a front view of the overall structure of an embodiment of a high-efficiency filtration membrane assembly of the present application; Figure 8 is an enlarged view of D;

[0026] Figure 10 is a front view of the overall structure of an embodiment of a high-efficiency filtration membrane assembly of the present application; Figure 8 is an enlarged view of E;

[0027] Figure 11 is a front view of the overall structure of an embodiment of a high-efficiency filtration membrane assembly of the present application; Figure 8 is an enlarged view of F;

[0028] Figure 12 is a front view of the overall structure of an embodiment of a high-efficiency filtration membrane assembly of the present application;

[0029] Figure 13 is a front view of the overall structure of an embodiment of a high-efficiency filtration membrane assembly of the present application; Figure 12 is an enlarged view of G.

[0030] In the figure: 100, membrane shell; 200, end cover; 300, sealing ring; 400, clamp assembly; 410, first clamp body; 411, first matching sleeve; 412, first elastic member; 413, groove; 420, second clamp body; 421, second matching sleeve; 422, clamping sleeve; 430, connecting piece; 431, first rotating plate; 432, second rotating plate; 433, first centering plate; 434, second centering plate; 435, first rotating sleeve; 436, second rotating sleeve; 440, adjusting member; 441, first adjusting ring; 442, second adjusting ring; 443, connecting rope; 450, clamping assembly; 451, main frame body; 452, clamping rod; 453, screw rod; 454, limiting rod. DETAILED DESCRIPTION

[0031] Clearly, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort shall fall within the protection scope of the present application.

[0032] An embodiment of the high-efficiency filtration membrane assembly of the present application is shown in Figures 1 to 13

[0033] The high-efficiency filtration membrane assembly comprises a membrane shell 100 and two end covers 200. The membrane shell 100 is arranged in a vertical direction, and the two end covers 200 are respectively sleeved on two ends of the membrane shell 100. A sealing ring 300 is sleeved on the connection between the end cover 200 and the membrane shell 100. The sealing ring 300 is provided with a hoop assembly 400. The hoop assembly 400 comprises two hoop bodies and two connecting pieces 430. The two hoop bodies are both semicircular structures and can be mutually butted. The two connecting pieces 430 are respectively located at the butting positions of the two hoop bodies.

[0034] The two hoop bodies are respectively referred to as a first hoop body 410 and a second hoop body 420. The connecting piece 430 comprises a first rotating plate 431, a second rotating plate 432, a first centering plate 433 and a second centering plate 434. The first rotating plate 431 is rotatably installed on the first hoop body 410 through a first rotating sleeve 435, and the second rotating plate 432 is rotatably installed on the second hoop body 420 through a second rotating sleeve 436. The first rotating sleeve 435 and the second rotating sleeve 436 are both arranged in a vertical direction, and the first rotating sleeve 435 and the second rotating sleeve 436 can be connected through a pin shaft. The first centering plate 433 and the second centering plate 434 are both rough in surface and have elasticity. The first centering plate 433 is fixedly installed on the first hoop body 410, and the second centering plate 434 is fixedly installed on the second hoop body 420. The first centering plate 433 can abut against the second rotating sleeve 436, and the second centering plate 434 can abut against the first rotating sleeve 435.

[0035] The hoop assembly 400 has a first state and a second state. In the first state, the first rotating sleeve 435 and the second rotating sleeve 436 both abut against the sealing ring 300 and can rotate relative to the sealing ring 300 in a vertical direction. In the second state, the second rotating sleeve 436 abuts against the first centering plate 433 and can rotate relative to the first centering plate 433, and the first rotating sleeve 435 abuts against the second centering plate 434 and can rotate relative to the second centering plate 434.

[0036] ​The first rotating plate 431 and the first clamping body 410 are connected in a split type and are rotationally matched, and the second rotating plate 432 and the second clamping body 420 are connected in a split type and are rotationally matched. When the clamping assembly 400 is installed, the operator first sleeves the end cover 200 on one end of the diaphragm case 100, and then sleeves the sealing ring 300 at the connection between the end cover 200 and the diaphragm case 100. Then, the first clamping body 410 and the second clamping body 420 are clamped at the sealing ring 300, and the first clamping body 410 and the second clamping body 420 are gradually close to each other for docking. At this time, the first clamping body 410 and the second clamping body 420 are in the first state of the clamping assembly 400, the first rotating sleeve 435 and the second rotating sleeve 436 are in abutment with the sealing ring 300, and the first rotating sleeve 435 and the second rotating sleeve 436 can rotate relative to the sealing ring 300 in the vertical direction, so that the sealing ring 300 generates rolling friction between the first rotating sleeve 435 and the second rotating sleeve 436, preventing the first clamping body 410 and the second clamping body 420 from pushing the sealing ring 300 to move synchronously during the docking of the first clamping body 410 and the second clamping body 420, so that the sealing ring 300 is offset, and the tightness of the connection between the sealing ring 300 and the diaphragm case 100 and the end cover 200 is improved.

[0037] During the process of gradually approaching and docking of the first clamping body 410 and the second clamping body 420, when the first centering plate 433 is in abutment with the second rotating sleeve 436 and the second centering plate 434 is in abutment with the first rotating sleeve 435, the first clamping body 410 and the second clamping body 420 basically reach the final docking position, and the surfaces of the first centering plate 433 and the second centering plate 434 are rough, which can increase the friction between the first centering plate 433 and the second rotating sleeve 436 and the friction between the second centering plate 434 and the first rotating sleeve 435, thereby pre-fixing the first clamping body 410 and the second clamping body 420 to prevent the first clamping body 410 and the second clamping body 420 from falling off. Then the first rotating plate 431 and the second rotating plate 432 can be manually rotated.

[0038] Referring to FIGS. 1 to 4, the first rotating plate 431 and the second rotating plate 432 are rotated relative to each other in the vertical direction. Figure 12 and Figure 13 The first rotating plate 431 is rotated to move the second centering plate 434 through the first rotating sleeve 435, and the second clamping body 420 is moved by the second centering plate 434. The second rotating plate 432 is rotated to move the first centering plate 433 through the second rotating sleeve 436, and the first clamping body 410 is moved by the first centering plate 433, so that the first clamping body 410 and the second clamping body 420 are further close to each other, and the two can be closely docked, reducing the alignment adjustment time during installation and improving the installation efficiency. Finally, the pin shaft passes through the first rotating sleeve 435 and the second rotating sleeve 436 to complete the docking.

[0039] In a further embodiment, the first hoop body 410 is provided with a first matching sleeve 411 for rotationally matching with the first rotating sleeve 435, and the second hoop body 420 is provided with a second matching sleeve 421 for rotationally matching with the second rotating sleeve 436. The first matching sleeve 411 and the second matching sleeve 421 are both provided with a clamping sleeve 422, which is capable of being extended and retracted relative to the first matching sleeve 411 and the second matching sleeve 421 provided thereon. The clamping sleeves 422 on the first matching sleeve 411 are sequentially arranged around the circumferential direction of the first hoop body 410 relative to the second rotating sleeve 436, and the end of the clamping sleeves 422 on the first matching sleeve 411 close to the second rotating sleeve 436 is wedge-shaped. The clamping sleeves 422 on the second matching sleeve 421 are sequentially arranged around the circumferential direction of the second hoop body 420 relative to the first rotating sleeve 435, and the end of the clamping sleeves 422 on the second matching sleeve 421 close to the first rotating sleeve 435 is wedge-shaped.

[0040] In the embodiment, the first rotating sleeve 435 and the second rotating sleeve 436 are both provided with two, and the two first rotating sleeves 435 are sequentially arranged in the vertical direction on the first rotating plate 431, and the two second rotating sleeves 436 are sequentially arranged in the vertical direction on the second rotating plate 432. The first rotating sleeve 435 and the second rotating sleeve 436 are alternately arranged in the vertical direction.

[0041] Specifically, the first matching sleeve 411 and the second matching sleeve 421 are both connected to the clamping sleeve 422 provided thereon through the first elastic member 412. The first elastic member 412 is arranged in the vertical direction, and the first elastic member 412 is a spring.

[0042] In this embodiment, the first engaging sleeve 411 and the second engaging sleeve 421 are provided with the clamping sleeves 422. During the abutting of the first hoop body 410 and the second hoop body 420, the first rotating sleeve 435 on the first rotating plate 431 will gradually approach the clamping sleeve 422 on the second engaging sleeve 421 and pass the wedge surface on the clamping sleeve 422, so that the clamping sleeve 422 is compressed back to the second engaging sleeve 421. Similarly, the second rotating sleeve 436 on the second rotating plate 432 will gradually approach the clamping sleeve 422 on the first engaging sleeve 411 and pass the wedge surface on the clamping sleeve 422, so that the clamping sleeve 422 is compressed back to the first engaging sleeve 411. Before the abutting of the first hoop body 410 and the second hoop body 420 is completed, the first engaging sleeve 411 will not be coaxial with the second rotating sleeve 436, and the second engaging sleeve 421 will not be coaxial with the first rotating sleeve 435, i.e., the clamping sleeves 422 are in the compressed back state. After the abutting of the first hoop body 410 and the second hoop body 420 is completed, the first engaging sleeve 411 will be coaxial with the second rotating sleeve 436, and the second engaging sleeve 421 will be coaxial with the first rotating sleeve 435. At this time, the clamping sleeves 422 on the first engaging sleeve 411 and the second engaging sleeve 421 will be reset under the urging of the first elastic member 412, so that the clamping sleeve 422 on the first engaging sleeve 411 can be automatically inserted into the second rotating sleeve 436, and the clamping sleeve 422 on the second engaging sleeve 421 can be automatically inserted into the first rotating sleeve 435. Before the pin shaft is inserted, the first hoop body 410 and the second hoop body 420 are further locked to prevent the first hoop body 410 and the second hoop body 420 from falling off.

[0043] In a further embodiment, when the hoop assembly 400 is switched from the first state to the second state, the angle corresponding to the arc length of the rotation of the first rotating sleeve 435 and the second rotating sleeve 436 around the vertical direction is equal to the arc length passed by the first rotating sleeve 435 and the second rotating sleeve 436 on the sealing ring 300.

[0044] In use, the diameters of the first rotating sleeve 435 and the second rotating sleeve 436 can be adjusted by the diameter of the membrane shell 100, so that when the sealing ring 300 is sleeved between the membrane shell 100 and the end cover 200, the sealing ring 300 will be adapted to the diameter of the membrane shell 100 and fit at the connection between the membrane shell 100 and the end cover 200. And after the first rotating sleeve 435 and the second rotating sleeve 436 abut against the sealing ring 300 from the beginning, to the first rotating sleeve 435 abuts against the first centering plate 433 and the second rotating sleeve 436 abuts against the second centering plate 434, the first rotating sleeve 435 and the second rotating sleeve 436 can always roll relative to the sealing ring 300. That is, when the clamp assembly 400 is switched from the first state to the second state, the angle corresponding to the arc length of the rotation of the first rotating sleeve 435 and the second rotating sleeve 436 around the vertical direction is equal to the arc length passed by the first rotating sleeve 435 and the second rotating sleeve 436 on the sealing ring 300.

[0045] In another possible embodiment, two adjusting members 440 are arranged on the inner circle of the first clamp body 410 and the inner circle of the second clamp body 420, and the two adjusting members 440 are arranged face to face in the vertical direction, and the sealing ring 300 is located between the two adjusting members 440.

[0046] The adjusting member 440 includes a first adjusting ring 441 and two second adjusting rings 442. The first adjusting ring 441 is a semicircular structure and is coaxially arranged with the first clamp body 410 or the second clamp body 420 corresponding thereto. The two second adjusting rings 442 are both arc-shaped structures and are coaxially arranged with the first adjusting ring 441. The two second adjusting rings 442 in the same adjusting member 440 are both connected with the first rotating plate 431 on the first clamp body 410 corresponding thereto or the second rotating plate 432 on the second clamp body 420 corresponding thereto through a connecting rope 443. In the vertical direction, the first adjusting ring 441 is located between the second adjusting ring 442 and the sealing ring 300 and abuts against the second adjusting ring 442 and the sealing ring 300 respectively, and the surfaces abutting against each other of the first adjusting ring 441 and the second adjusting ring 442 are both inclined surfaces.

[0047] Among them, the inner circle of the first clamp body 410 and the inner circle of the second clamp body 420 both have two grooves 413, the two grooves 413 are arranged in sequence in the vertical direction, the adjusting member 440 is arranged one by one with the groove 413, and the adjusting member 440 is located in the groove 413 corresponding thereto.

[0048] The embodiment is configured with the adjusting member 440, so that the first rotating plate 431 and the second rotating plate 432 in the same connecting member 430 rotate slightly around the vertical direction, and constantly approach and move away from each other. When the first rotating plate 431 and the second rotating plate 432 in the same connecting member 430 approach each other around the vertical direction, the tension of the connecting rope 443 increases, and the tension of the connecting rope 443 is applied to the second adjusting ring 442, and the second adjusting ring 442 further transmits the force to the first adjusting ring 441 through the inclined surface matched with the first adjusting ring 441, and finally the first adjusting ring 441 extrudes the sealing ring 300. Conversely, when the first rotating plate 431 and the second rotating plate 432 in the same connecting member 430 move away from each other around the vertical direction, the tension of the connecting rope 443 decreases, and the tension of the connecting rope 443 applied to the second adjusting ring 442 and the force transmitted to the first adjusting ring 441 also decreases, and the sealing ring 300 will reset under the urging of its own elasticity. Thus, the sealing ring 300 constantly switches between being pressed and restoring deformation, fine-tunes the position of the sealing ring 300, eliminates possible wrinkles and offsets on the sealing ring 300, and further improves the sealing tightness.

[0049] After the first rotating plate 431 and the second rotating plate 432 in the same connecting member 430 rotate slightly around the vertical direction for several times, the rotating amplitude is increased, the first pair of centering plates 433 drive the first hoop body 410 to move, the second pair of centering plates 434 drive the second hoop body 420 to move, and the first hoop body 410 and the second hoop body 420 are butted in place. It should be particularly noted that even if the rotating amplitude of the first rotating plate 431 and the second rotating plate 432 rotating around the vertical direction is increased, the force generated by the first rotating plate 431 and the second rotating plate 432 on the sealing ring 300 will not cause the sealing ring 300 to produce obvious deformation, and will not affect the sealing effect of the sealing ring 300 between the end cover 200 and the diaphragm case 100.

[0050] In a further embodiment, the connecting member 430 further comprises a clamping assembly 450, and the clamping assembly 450 comprises a main frame body 451 and two clamping rods 452. The main frame body 451 is detachably installed at the butt joint of the first hoop body 410 and the second hoop body 420. Specifically, the main frame body 451 can be installed at the butt joint of the first hoop body 410 and the second hoop body 420 by bolts.

[0051] The two clamping rods 452 are sequentially arranged on the main frame body 451 along the reference axis direction and can move closer to or farther away from each other along the reference axis direction, that is, the tangential direction of the first hoop body 410. The end face of the first rotating plate 431 towards the side of the first hoop body 410 is referred to as the first end face, and the end face of the second rotating plate 432 towards the side of the second hoop body 420 is referred to as the second end face. The two clamping rods 452 are in abutment with the first end face and the second end face, respectively. When the two clamping rods 452 move closer to each other along the reference axis direction on the main frame body 451, the first rotating plate 431 and the second rotating plate 432 can rotate around the vertical direction and move closer to each other. When the two clamping rods 452 move farther away from each other along the reference axis direction on the main frame body 451, the first rotating plate 431 and the second rotating plate 432 can rotate around the vertical direction and move farther away from each other.

[0052] The clamping assembly 450 further comprises a screw rod 453 arranged on the main frame body 451 along the reference axis direction and capable of rotating around its own axis. The screw rod 453 is in screw connection with the two clamping rods 452, and rotating the screw rod 453 around its own axis can make the two clamping rods 452 move closer to or farther away from each other along the reference axis direction.

[0053] The clamping assembly 450 further comprises a motor and a temperature sensing element. The motor is fixedly installed on the main frame body 451 and can drive the screw rod 453 to rotate around its own axis. The temperature sensing element is installed on the main frame body 451 and comprises a temperature sensor and a control module. The temperature sensor is electrically connected to the motor through the control module. The temperature sensor is used to sense the temperature of the film shell 100, convert it into an output signal and transmit it to the control module, and start or stop the motor through the control module. The output end of the motor is fixedly provided with a driving gear, and a driven gear is coaxially and fixedly connected to the screw rod 453. The driving gear is in meshing connection with the driven gear.

[0054] Specifically, the screw rod 453 is provided with a first threaded section and a second threaded section. The first threaded section is used for screwing with one of the clamping rods 452, and the second threaded section is used for screwing with the other clamping rod 452. The screw directions of the first threaded section and the second threaded section are opposite.

[0055] Further, the clamping assembly 450 further comprises a limiting rod 454 arranged on the main frame body 451 along the reference axis direction and in sliding connection with the two clamping rods 452. The limiting rod 454 limits the movement of the two clamping rods 452 along the reference axis direction, making the movement of the clamping rods 452 more stable.

[0056] The clamping assembly 450 is arranged to control the movement of the two clamping rods 452 according to the temperature inside the film shell 100 during use, dynamically adjust the pressure of the sealing ring 300, and compensate for the thermal expansion and contraction deformation of the sealing ring 300.

[0057] Specifically, after the butt joint of the first hoop body 410 and the second hoop body 420 is completed, the main frame body 451 is installed at the butt joint of the first hoop body 410 and the second hoop body 420 by means of bolts, and the two clamping rods 452 are respectively abutted with the first end face and the second end face by driving the screw rod 453 to rotate by the motor, so that the first rotating plate 431 and the second rotating plate 432 are rotated around the vertical direction and approach each other, the tension of the connecting rope 443 is increased, and the force of the first adjusting ring 441 on the sealing ring 300 is increased to a certain extent through the transmission of force among the connecting rope 443, the second adjusting ring 442 and the first adjusting ring 441.

[0058] In use, when the temperature of the medium (gas) to be filtered is high, the sealing ring 300 may expand (in the vertical direction) due to thermal expansion and cold contraction. Therefore, when the temperature sensor senses that the temperature in the membrane shell 100 is high, the temperature sensor will drive the motor to start through the control module, and the screw rod 453 is driven to rotate by the motor, so that the two clamping rods 452 are away from each other along the reference axis direction, and then the tension of the connecting rope 443 on the second adjusting ring 442 is reduced, and the force of the first adjusting ring 441 on the sealing ring 300 is reduced; similarly, when the temperature of the medium (gas) to be filtered is low, the sealing ring 300 may shrink (in the vertical direction) due to thermal expansion and cold contraction. Therefore, when the temperature sensor senses that the temperature in the membrane shell 100 is low, the temperature sensor will drive the motor to start through the control module, and the screw rod 453 is driven to rotate by the motor, so that the two clamping rods 452 are close to each other along the reference axis direction, and then the tension of the connecting rope 443 on the second adjusting ring 442 is increased, and the force of the first adjusting ring 441 on the sealing ring 300 is increased, which compensates the cold contraction deformation of the sealing ring 300 and ensures that the sealing pressure always adapts to the temperature change.

[0059] In combination with the above embodiment, the specific working process is as follows:

[0060] In the installation of the hoop assembly 400, the operator first fits the end cover 200 to one end of the membrane shell 100, and then fits the sealing ring 300 at the joint of the end cover 200 and the membrane shell 100. Then the first hoop body 410 and the second hoop body 420 are clamped at the sealing ring 300, and the first hoop body 410 and the second hoop body 420 are gradually brought close to be docked. At this time, the first hoop assembly 400 is in the first state, the first rotating sleeve 435 and the second rotating sleeve 436 are in abutment with the sealing ring 300, and the first rotating sleeve 435 and the second rotating sleeve 436 can rotate relative to the sealing ring 300 in the vertical direction, so that the rolling friction is generated between the sealing ring 300 and the first rotating sleeve 435 and the second rotating sleeve 436, preventing the first hoop body 410 and the second hoop body 420 from pushing the sealing ring 300 to move synchronously during the docking of the first hoop body 410 and the second hoop body 420, so that the sealing ring 300 is offset, and the tightness of the cooperation of the sealing ring 300 with the joint of the membrane shell 100 and the end cover 200 is improved.

[0061] During the docking of the first hoop body 410 and the second hoop body 420, the first rotating sleeve 435 on the first rotating plate 431 will gradually approach the clamping sleeve 422 provided on the second matching sleeve 421, and pass through the wedge surface on the clamping sleeve 422, so that the clamping sleeve 422 is compressed back into the second matching sleeve 421. Similarly, the second rotating sleeve 436 on the second rotating plate 432 will gradually approach the clamping sleeve 422 on the first matching sleeve 411, and pass through the wedge surface on the clamping sleeve 422, so that the clamping sleeve 422 is compressed back into the first matching sleeve 411. Before the first hoop body 410 and the second hoop body 420 are completely docked, the first matching sleeve 411 will not be completely coaxial with the second rotating sleeve 436, and the second matching sleeve 421 will not be completely coaxial with the first rotating sleeve 435, that is, the clamping sleeve 422 is in a compressed back state.

[0062] When the first centering plate 433 is in abutment with the second rotating sleeve 436, and the second centering plate 434 is in abutment with the first rotating sleeve 435, at this time, the first hoop body 410 and the second hoop body 420 basically reach the final docking position, and the surfaces of the first centering plate 433 and the second centering plate 434 are provided as rough surfaces, which can increase the friction between the first centering plate 433 and the second rotating sleeve 436, and the friction between the second centering plate 434 and the first rotating sleeve 435, thereby pre-fixing the first hoop body 410 and the second hoop body 420 to prevent the first hoop body 410 and the second hoop body 420 from falling off. At the same time, the rotating arc length of the first rotating sleeve 435 and the second rotating sleeve 436 is equal to the arc length on the sealing ring 300, which ensures that the rolling contact is always maintained, and sliding friction is avoided.

[0063] Afterwards, the first rotating plate 431 and the second rotating plate 432 can be manually driven to rotate. When the first rotating plate 431 and the second rotating plate 432 are manually driven to rotate, the first rotating plate 431 and the second rotating plate 432 in the same connecting piece 430 are first made to rotate slightly around the vertical direction, constantly approaching and moving away from each other. When the first rotating plate 431 and the second rotating plate 432 in the same connecting piece 430 approach each other around the vertical direction, the tension of the connecting rope 443 becomes larger at this time, and the tension of the connecting rope 443 is applied to the second adjusting ring 442, and the second adjusting ring 442 further transmits the force to the first adjusting ring 441 through the inclined surface matched with the first adjusting ring 441, and finally the first adjusting ring 441 extrudes the sealing ring 300. Conversely, when the first rotating plate 431 and the second rotating plate 432 in the same connecting piece 430 move away from each other around the vertical direction, the tension of the connecting rope 443 becomes smaller at this time, and the tension of the connecting rope 443 applied to the second adjusting ring 442 and the force transmitted to the first adjusting ring 441 will also become smaller, and the sealing ring 300 will be reset under the urging of its own elasticity. Thus, the sealing ring 300 is constantly switched between being pressed and restoring deformation, the position of the sealing ring 300 is finely adjusted, the possible wrinkles and deviations on the sealing ring 300 are eliminated, and the sealing tightness is further improved.

[0064] After the first rotating plate 431 and the second rotating plate 432 in the same connecting piece 430 are rotated slightly around the vertical direction for several times, the rotation amplitude is increased, the first pair of centering plates 433 drive the first hoop body 410 to move, and the second pair of centering plates 434 drive the second hoop body 420 to move, and the first hoop body 410 and the second hoop body 420 are butt-jointed in place. It needs to be particularly pointed out that even if the rotation amplitude of the first rotating plate 431 and the second rotating plate 432 rotating around the vertical direction is increased, the force generated by the first rotating plate 431 and the second rotating plate 432 on the sealing ring 300 will not cause obvious deformation of the sealing ring 300, and will not affect the sealing effect of the sealing ring 300 between the end cover 200 and the diaphragm case 100.

[0065] When the first hoop body 410 and the second hoop body 420 are butt-jointed, the first matching sleeve 411 will be coaxial with the second rotating sleeve 436 at this time, and the second matching sleeve 421 will also be coaxial with the first rotating sleeve 435 at this time, the clamping sleeve 422 on the first matching sleeve 411 and the clamping sleeve 422 on the second matching sleeve 421 will be reset under the urging of the first elastic member 412 at this time, so that the clamping sleeve 422 on the first matching sleeve 411 can be automatically inserted into the second rotating sleeve 436, and the clamping sleeve 422 on the second matching sleeve 421 can be automatically inserted into the first rotating sleeve 435, before the pin shaft is inserted, further locking the first hoop body 410 and the second hoop body 420, preventing the first hoop body 410 and the second hoop body 420 from falling off. Finally, the pin shaft is inserted through the coaxial first rotating sleeve 435 and the second rotating sleeve 436, and the hoop assembly 400 is finally locked.

[0066] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high efficiency filtration membrane module characterized by: The application relates to a clamp assembly, which comprises a membrane shell and two end covers, the membrane shell is arranged in a vertical direction, the two end covers are sleeved on the two ends of the membrane shell respectively, and a sealing ring is sleeved on the connecting part of the end cover and the membrane shell; the sealing ring is provided with the clamp assembly; the clamp assembly comprises two clamp bodies and two connecting pieces, the two clamp bodies are both semicircular structures and can be mutually butted; the two connecting pieces are respectively arranged at the butting parts of the two clamp bodies; the two clamp bodies are respectively called a first clamp body and a second clamp body, the connecting piece comprises a first rotating plate, a second rotating plate, a first centering plate and a second centering plate, the first rotating plate is rotatably installed on the first clamp body through a first rotating sleeve, and the second rotating plate is rotatably installed on the second clamp body through a second rotating sleeve; the first rotating sleeve and the second rotating sleeve are arranged in the vertical direction, and the first rotating sleeve and the second rotating sleeve can be connected through a pin shaft; the surfaces of the first centering plate and the second centering plate are rough and both have elasticity; the first centering plate is installed on the first clamp body, the second centering plate is installed on the second clamp body, the first centering plate can abut against the second rotating sleeve, and the second centering plate can abut against the first rotating sleeve. The clamp assembly has a first state and a second state, when in the first state, the first rotating sleeve and the second rotating sleeve abut against the sealing ring and can rotate relative to the sealing ring in the vertical direction; when in the second state, the second rotating sleeve abuts against the first centering plate and can rotate relative to the first centering plate, and the first rotating sleeve abuts against the second centering plate and can rotate relative to the second centering plate.

2. The high efficiency filtration membrane module of claim 1, wherein: The first clamp body is provided with a first matching sleeve for rotating cooperation with the first rotating sleeve, and the second clamp body is provided with a second matching sleeve for rotating cooperation with the second rotating sleeve; the first matching sleeve and the second matching sleeve are both provided with clamping sleeves, the clamping sleeves can be telescopic relative to the first matching sleeve and the second matching sleeve arranged correspondingly; the clamping sleeves on the first matching sleeve are arranged in sequence in the circumferential direction of the first clamp body relative to the second rotating sleeve, and the end of the clamping sleeve on the first matching sleeve close to the second rotating sleeve in the circumferential direction of the first clamp body is wedge-shaped; the clamping sleeves on the second matching sleeve are arranged in sequence in the circumferential direction of the second clamp body relative to the first rotating sleeve, and the end of the clamping sleeve on the second matching sleeve close to the first rotating sleeve in the circumferential direction of the second clamp body is wedge-shaped.

3. The high efficiency filtration membrane module of claim 2, wherein: The first matching sleeve and the second matching sleeve are both connected with the clamping sleeves arranged correspondingly through first elastic pieces, and the first elastic pieces are arranged in the vertical direction.

4. The high efficiency filtration membrane module of claim 1, wherein: When the clamp assembly is switched from the first state to the second state, the angle corresponding to the arc length of the rotation of the first rotating sleeve and the second rotating sleeve in the vertical direction is equal to the arc length passed by the first rotating sleeve and the second rotating sleeve on the sealing ring.

5. The high efficiency filtration membrane module of claim 1, wherein: The inner ring of the first hoop body and the inner ring of the second hoop body are provided with two adjusting members, the two adjusting members are arranged face to face in the vertical direction, and the sealing ring is located between the two adjusting members; the adjusting member comprises a first adjusting ring and two second adjusting rings, the first adjusting ring is a semicircular structure and is coaxially arranged with the first hoop body or the second hoop body corresponding to the first adjusting ring, and the two second adjusting rings are arc structures and are coaxially arranged with the first adjusting ring; the two second adjusting rings in the same adjusting member are connected with the first rotating plate on the first hoop body corresponding to the adjusting member or the second rotating plate on the second hoop body corresponding to the adjusting member through a connecting rope; in the vertical direction, the first adjusting ring is located between the second adjusting ring and the sealing ring and abuts against the second adjusting ring and the sealing ring respectively, and the surfaces abutting against each other of the first adjusting ring and the second adjusting ring are both inclined surfaces.

6. A high efficiency filtration membrane module according to claim 5, wherein: The inner ring of the first hoop body and the inner ring of the second hoop body are provided with two grooves, the two grooves are sequentially arranged in the vertical direction, the adjusting member is one-to-one corresponding to the groove, and the adjusting member is located in the groove corresponding to the adjusting member.

7. The high efficiency filtration membrane module of claim 1, wherein: The connecting piece further comprises a clamping assembly, the clamping assembly comprises a main frame body and two clamping rods; the main frame body is detachably installed at the abutting position of the first hoop body and the second hoop body, the two clamping rods are sequentially arranged on the main frame body in the reference axis direction, and can approach or move away from each other in the reference axis direction; the end face of the first rotating plate towards the side of the first hoop body is referred to as the first end face, and the end face of the second rotating plate towards the side of the second hoop body is referred to as the second end face; the two clamping rods abut against the first end face and the second end face respectively, and when the two clamping rods approach each other in the reference axis direction on the main frame body, the first rotating plate and the second rotating plate can rotate around the vertical direction and approach each other, and when the two clamping rods move away from each other in the reference axis direction on the main frame body, the first rotating plate and the second rotating plate can rotate around the vertical direction and move away from each other.

8. The high efficiency filtration membrane module of claim 7, wherein: The clamping assembly further comprises a screw rod, the screw rod is arranged on the main frame body in the reference axis direction and can rotate around its own axis, the screw rod is screw-connected with the two clamping rods, and rotation of the screw rod around its own axis can make the two clamping rods approach or move away from each other in the reference axis direction.

9. The high efficiency filtration membrane module of claim 8, wherein: The screw rod is provided with a first threaded section and a second threaded section, the first threaded section is used for screwing with one of the clamping rods, the second threaded section is used for screwing with the other clamping rod, and the screwing directions of the first threaded section and the second threaded section are opposite.

10. The high efficiency filtration membrane module of claim 8, wherein: The clamping assembly further comprises a motor and a temperature sensing element; the motor is installed on the main frame body and can drive the screw rod to rotate around its own axis; the temperature sensing element is installed on the main frame body, the temperature sensing element comprises a temperature sensor and a control module, the temperature sensor is electrically connected with the motor through the control module, the temperature sensor is used for sensing the temperature of the film shell and converting it into an output signal transmitted to the control module, and the control module makes the motor start and stop.

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