CN113522034B - Fault judging mechanism and ultrafiltration equipment based on same - Google Patents
Fault judging mechanism and ultrafiltration equipment based on same Download PDFInfo
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- CN113522034B CN113522034B CN202110704076.2A CN202110704076A CN113522034B CN 113522034 B CN113522034 B CN 113522034B CN 202110704076 A CN202110704076 A CN 202110704076A CN 113522034 B CN113522034 B CN 113522034B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/10—Testing of membranes or membrane apparatus; Detecting or repairing leaks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a fault judging mechanism and ultrafiltration equipment based on the same, wherein the fault judging mechanism comprises a detection cavity, a working cavity, a display and a flow sensor, a first liquid inlet valve group is arranged at the upper part of the detection cavity, and a second liquid inlet valve group is arranged at the upper part of the working cavity; the bottom of the detection cavity is provided with a liquid outlet valve, and the flow sensor is arranged at the downstream of the liquid outlet valve, so that the flow sensor detects the flow of liquid flowing out of the liquid outlet valve; the first liquid inlet valve bank is fixedly provided with a first clamping seat, and a liquid outlet of the first liquid inlet valve bank is exposed from the bottom side of the first clamping seat, so that the liquid outlet of the first liquid inlet valve bank is matched with the fluid filtering equipment; the first clamping seat is connected to the top wall of the detection cavity in a sliding mode, and the sliding direction of the first clamping seat is vertical sliding. The fault judging mechanism can detect the fault of the ultrafiltration device on line, and the ultrafiltration device can detect the fault on line in real time after the fault judging mechanism is installed, so that the method is simple and quick.
Description
Technical Field
The invention relates to a fault detection technology of ultrafiltration equipment, in particular to a fault judging mechanism and ultrafiltration equipment based on the same.
Background
Ultrafiltration is a membrane filtration process between microfiltration and nanofiltration, and the pore size of the membrane is 1 nm-0.05 μm by taking pressure difference as driving force. The ultrafiltration membrane technology has the characteristics of no phase change, high efficiency, energy saving, simple process and convenient operation, has wide application in the fields of food industry, medicine, industrial wastewater treatment, sea water desalination pretreatment, ultrapure water preparation, biotechnology and the like, and is an important technology for promoting energy saving and emission reduction work.
When the ultrafiltration membrane is used for filtering and separating impurities, suspended solids, colloid and soluble high molecular compounds in water or solution are deposited on the surface of the membrane to generate blockage, so that the membrane is polluted to cause membrane filtration failure. When the ultrafiltration membrane fails, the ultrafiltration membrane still continues to filter, but whether the ultrafiltration membrane fails or not cannot be judged by naked eyes, so that an online detection device for the filtration performance of the ultrafiltration membrane is needed.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide a fault judging mechanism and ultrafiltration equipment based on the same, wherein the fault judging mechanism can detect faults of the ultrafiltration equipment on line, and the ultrafiltration equipment can detect the faults on line in real time after the fault judging mechanism is installed, so that the ultrafiltration equipment is simple and quick.
The technical scheme adopted for solving the technical problems is as follows: the fault judging mechanism comprises a detecting cavity, a working cavity, a display and a flow sensor, wherein a first liquid inlet valve group is arranged at the upper part of the detecting cavity, and a second liquid inlet valve group is arranged at the upper part of the working cavity; the bottom of the detection cavity is provided with a liquid outlet valve, and the flow sensor is arranged at the downstream of the liquid outlet valve, so that the flow sensor detects the flow of liquid flowing out of the liquid outlet valve;
the flow sensor is connected with the display, so that the flow sensor displays the collected flow information through the display;
the first liquid inlet valve bank is fixedly provided with a first clamping seat, and a liquid outlet of the first liquid inlet valve bank is exposed from the bottom side of the first clamping seat, so that the liquid outlet of the first liquid inlet valve bank is matched with the fluid filtering equipment; the first clamping seat is connected to the top wall of the detection cavity in a sliding mode, and the sliding direction of the first clamping seat is vertical sliding.
Optionally, a moving seat is arranged at the top of the fluid filtering device, so that the fluid filtering device moves from the detection cavity to the working cavity or from the working cavity to the detection cavity through the moving seat.
Optionally, a first through groove for sliding connection with the first clamping seat is formed in the top wall of the detection cavity.
Optionally, a guide rail is installed between the inner side wall of the detection cavity and the inner side wall of the working cavity, and the movable seat is connected to the guide rail.
By adopting the technical scheme, the fault judging mechanism can be applied to an on-line detection occasion, and when the fluid filtering equipment is required to be detected, the fluid filtering equipment can be moved from the working cavity to the detection cavity for detection, the fluid filtering equipment is not required to be dismantled, and the detection flow of the fluid filtering equipment is greatly facilitated.
Based on the fault judging mechanism, the invention also provides ultrafiltration equipment which comprises a box body, wherein two groups of ultrafiltration membrane components and the fault judging mechanism are arranged in the box body, so that the ultrafiltration membrane components detect the fault degree through the fault judging mechanism;
the box body is internally provided with a second liquid inlet valve group, the second liquid inlet valve group is in sliding connection with the top wall of the box body through a second clamping seat, and the top wall of the box body is provided with a second through groove for connecting the second liquid inlet valve group;
the detection cavity of the fault degree judging mechanism is arranged on one side part of the box body.
Optionally, two fault judging mechanisms are provided, and the two fault judging mechanisms are respectively positioned at two sides of the box body.
Optionally, a collecting cavity for collecting the ultrafiltered liquid is arranged in the box body;
the bottom of the detection cavity is provided with a liquid draining cavity.
Optionally, the depth of the drainage cavity is greater than the depth of the collection cavity, so that a height difference exists between the bottom of the drainage cavity and the bottom of the collection cavity.
Optionally, a first spring is connected between the first through groove on the top wall of the detection cavity and the first clamping seat.
Optionally, a second spring is connected between the second through groove on the top wall of the box body and the second clamping seat.
Correspondingly, the ultrafiltration device provided by the invention is integrated with the fault judging mechanism, so that the ultrafiltration membrane component can be detected in the normal working process of the ultrafiltration device, the on-line detection of the ultrafiltration membrane component is realized, the stop is not needed, and the operation is convenient and quick.
Drawings
FIG. 1 is a schematic diagram of the structure of an ultrafiltration apparatus of the present invention;
FIG. 2 is a schematic view of the structure of the first inlet valve of the present invention;
fig. 3 is a schematic structural view of a second liquid inlet valve of the present invention.
Detailed Description
The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the invention are shown in the drawings.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, the present invention discloses a failure determination mechanism for failure detection of a fluid filtering apparatus, which includes a detection chamber 1, a working chamber, a display, and a flow sensor 2. In the invention, the upper part of the detection cavity 1 is provided with a first liquid inlet valve group 3, and the upper part of the working cavity is provided with a second liquid inlet valve group 4. Wherein, the first liquid inlet valve group 3 is used for injecting detection liquid into the fluid filtering equipment and pressurizing; the function of the second inlet valve block 4 is to inject the fluid to be filtered into the fluid filtering device, i.e. the second inlet valve block 4 is used when the fluid filtering device is operating normally. Thus, in the invention, one group of fluid filtering equipment can be used for normal operation while the other group of fluid filtering equipment is detected, so that the on-line detection of the fluid filtering equipment can be realized.
In addition, a liquid outlet valve 5 is provided at the bottom of the detection chamber 1, the on/off of the detection liquid discharge passage is controlled by the liquid outlet valve 5, and a flow sensor 2 is provided downstream of the liquid outlet valve 5, so that the flow sensor 2 detects the flow rate of the detection liquid flowing out from the liquid outlet valve 5. Specifically, in the present invention, the flow sensor 2 may be an ultrasonic flow meter, the detection end of which is disposed in the downstream pipeline of the liquid outlet valve 5, and a wireless communication module is integrated in the ultrasonic flow meter, through which the ultrasonic flow meter and the display are connected in a communication manner, so that flow information collected by the ultrasonic flow meter is displayed in the display, and then the flow information collected by the ultrasonic flow meter is compared with an upper limit threshold and a lower limit threshold of a qualified flow of the fluid device, and if the flow information collected by the ultrasonic flow meter is between the upper limit threshold and the lower limit threshold of the qualified flow of the fluid device, the fluid filtering device is determined to be in a qualified state, otherwise, the fluid filtering device is determined to be in a failure state.
In the fault judging mechanism of the present invention, as shown in fig. 2, the first liquid inlet valve group 3 is fixedly provided with the first clamping seat 6, so that the first liquid inlet valve group 3 moves through the first clamping seat 6. Specifically, the liquid outlet of the first liquid inlet valve group 3 is exposed from the bottom side of the first clamping seat 6, so that the liquid outlet of the first liquid inlet valve group 3 is adapted to the fluid filtering device, and the liquid outlet of the first liquid inlet valve group 3 is ensured to be inserted into the inlet end of the fluid filtering device. Specifically, a first through groove 7 for sliding connection with the first clamping seat 6 is formed in the top wall of the detection cavity 1, the first clamping seat 6 is in sliding connection with the first through groove 7, the up-and-down movement of the first clamping seat 6 can be driven manually, and therefore a lifting handle 8 can be fixedly arranged at the top of the first clamping seat 6, and the lifting handle 8 can be used for manually lifting or pressing. In the invention, a locking unit is further connected between the first clamping seat 6 and the outer top wall of the detection cavity 1, so that after the first liquid inlet valve group 3 is assembled with the fluid filtering equipment, the first clamping seat 6 is clamped with the outer top wall of the detection cavity 1, and the fastening and positioning of the first clamping seat 6 are realized.
Specifically, as shown in fig. 2, the locking unit includes a locking lever 9 rotatably connected to the outer top wall of the detection chamber 1, and a protrusion 10 provided on the outer wall of the first clamping seat 6, and when the first liquid inlet valve block 3 is assembled with the fluid filtering apparatus, the locking lever 9 is pressed against the protrusion 10 by rotating the locking lever 9, thereby fixing the first clamping seat 6. In order to facilitate the cooperation of the locking rod 9 and the protruding portion 10, a step is formed on the top of the first through groove 7 to form a sinking groove 11, the depth of the sinking groove 11 is adapted to the thickness of the protruding portion 10, so that the sinking groove 11 can just accommodate the protruding portion 10, when the first liquid inlet valve group 3 is assembled with the fluid filtering device, the protruding portion 10 is positioned in the sinking groove 11, at the moment, the locking rod 9 is rotated again, the locking rod 9 is rotated to the position above the protruding portion 10, and locking of the first clamping seat 6 is completed.
In the fault judging mechanism of the invention, as shown in fig. 1, a movable seat 12 is arranged at the top of the fluid filtering device, and the fluid filtering device is moved from the detection cavity 1 into the working cavity through the movable seat 12 so as to transfer the fluid filtering device which is qualified in detection from the detection cavity 1 into the working cavity; or the fluid filtering device to be tested is moved from the working chamber into the testing chamber 1 by means of the moving seat 12. In addition, a guide rail 13 is installed between the inner side wall of the detection chamber 1 and the inner side wall of the working chamber, and the movable seat 12 is connected to the guide rail 13 so as to facilitate the movement of the movable seat 12.
The following describes an application scenario of the failure determination mechanism of the present invention by means of a specific embodiment.
As shown in fig. 1, the invention discloses an ultrafiltration device, which comprises a box body 15, wherein two groups of ultrafiltration membrane assemblies 14 and the fault judging mechanism are arranged in the box body 15, and the ultrafiltration membrane assemblies 14 detect faults through the fault judging mechanism.
In this embodiment, the tank 15 is used for mounting the ultrafiltration membrane assembly 14, and thus the tank 15 can be regarded as a working chamber of the failure determination mechanism. Therefore, as shown in fig. 1 and 3, the second liquid inlet valve set 4 is disposed in the box 15, and the second liquid inlet valve set 4 can be slidably connected with the top wall of the box 15 through the second clamping seat 16, and the top wall of the box 15 is provided with a second through slot 17 for connecting the second liquid inlet valve set 4. In this embodiment, the second inlet valve block 4 is mounted in the same manner as the first inlet valve block 3, and in operation, the second inlet valve block 4 is assembled with the corresponding ultrafiltration membrane assembly 14 to effect filtration.
In this embodiment, as shown in fig. 1, two failure determination mechanisms are provided, the two failure determination mechanisms being located at both side positions of the case 15, respectively. Therefore, the detection chambers 1 are symmetrically distributed on both sides of the case 15, and on the inner side walls of the detection chambers 1 and the case 15, guide rails 13 are installed, the guide rails 13 are linear guide rails, and the movable base 12 is installed on the linear guide rails so as to realize linear translation of the movable base 12. In addition, a screw pair is further installed in the linear guide rail, so as to drive the moving seat 12 to move, and the screw pair is a common technical means in the prior art, and is not described in detail in this embodiment.
In this embodiment, two failure determination mechanisms are provided, and are distributed on both sides of the case 15. The two failure judgment mechanisms correspond to the ultrafiltration membrane assemblies 14, respectively, that is, one failure judgment mechanism detects one ultrafiltration membrane assembly 14. For example, assuming that the ultrafiltration membrane module 14 located at the left side of the housing 15 is a first ultrafiltration membrane module, the other ultrafiltration membrane module 14 is a second ultrafiltration membrane module, and accordingly, the detection chamber 1 located at the left side of the housing 15 is a first detection chamber, and the other detection chamber 1 is a second detection chamber, then the first detection chamber only detects the first ultrafiltration membrane module, and the second detection chamber only detects the second ultrafiltration membrane module. When the first ultrafiltration membrane component is detected, the second ultrafiltration membrane component can be just positioned in the box body 15 when the first ultrafiltration membrane component is moved into the first detection cavity, then the first liquid inlet valve group 3 on the first detection cavity 1 is assembled with the first ultrafiltration membrane component, and meanwhile, the second liquid inlet valve group 4 is assembled with the second ultrafiltration membrane component; when detecting the second milipore filter subassembly, remove the second milipore filter subassembly to the second and detect the intracavity, at this moment, first milipore filter subassembly can be located box 15 just, then with the first feed liquor valves 3 on the second detection chamber with the assembly of second milipore filter subassembly, make second feed liquor valves 4 and first milipore filter trample simultaneously and assemble.
In this embodiment, as shown in fig. 1, a collection chamber 18 for collecting the ultrafiltered liquid is provided in the tank 15, and a drain chamber 19 is provided at the bottom of the detection chamber 1. Wherein the depth of the liquid discharge cavity 19 is larger than the depth of the collecting cavity 18, so that a height difference exists between the bottom of the liquid discharge cavity 19 and the bottom of the collecting cavity 18, and the detection liquid is distinguished from the filtered liquid.
In this embodiment, as shown in fig. 2 and 3, a first spring 20 is connected between the first through groove 7 located on the top wall of the detection chamber 1 and the first card socket 6. A second spring 21 may also be connected between the second through slot 17 on the top wall of the housing 15 and the second clamping seat 16. By the arrangement of the first spring 20 and the second spring 21, the damping feeling at the time of pressing of the first card holder 6 and the second card holder 16 is increased.
In this embodiment, when the first liquid inlet valve set 3 and the second liquid inlet valve set 4 are assembled with the ultrafiltration membrane assembly 14 respectively, the first clamping seat 6 and the second clamping seat 16 are respectively abutted with the corresponding moving seat 12, and the joint positions are sealed. Therefore, a circle of first sealing rings are respectively arranged at the bottoms of the first clamping seat 6 and the second clamping seat 16, and a second sealing ring matched with the first sealing rings is respectively arranged at the tops of the two moving seats 12, so that a sealing effect is achieved, and the ultrafiltration membrane component 14 can be detected in a pressurizing mode only after the first clamping seat 6 is in sealing butt joint with the corresponding moving seat 12.
The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the invention referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the invention. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.
Other technical features besides those described in the specification are known to those skilled in the art, and are not described herein in detail to highlight the innovative features of the present invention.
Claims (8)
1. The fault judging mechanism is characterized by comprising a detection cavity, a working cavity, a display and a flow sensor, wherein a first liquid inlet valve group is arranged at the upper part of the detection cavity, and a second liquid inlet valve group is arranged at the upper part of the working cavity; the bottom of the detection cavity is provided with a liquid outlet valve, and the flow sensor is arranged at the downstream of the liquid outlet valve, so that the flow sensor detects the flow of liquid flowing out of the liquid outlet valve;
the flow sensor is connected with the display, so that the flow sensor displays the collected flow information through the display;
the first liquid inlet valve bank is fixedly provided with a first clamping seat, and a liquid outlet of the first liquid inlet valve bank is exposed from the bottom side of the first clamping seat, so that the liquid outlet of the first liquid inlet valve bank is matched with the fluid filtering equipment; the first clamping seat is connected to the top wall of the detection cavity in a sliding mode, and the sliding direction of the first clamping seat is vertical sliding;
the top of fluid filtration equipment is equipped with the removal seat, makes fluid filtration equipment removes to the working chamber from detecting the intracavity through removing the seat, perhaps remove to detecting the intracavity from the working chamber, install the guide rail between the inside wall in detection chamber and the inside wall in working chamber, remove the seat and connect on the guide rail.
2. The fault determination mechanism according to claim 1, wherein a first through slot for slidably connecting the first clamping seat is formed in a top wall of the detection chamber.
3. An ultrafiltration device, comprising a case, wherein two sets of ultrafiltration membrane components and the failure judgment mechanism according to any one of claims 1 to 2 are provided in the case, so that the ultrafiltration membrane components detect failures through the failure judgment mechanism;
the box body is internally provided with a second liquid inlet valve group, the second liquid inlet valve group is in sliding connection with the top wall of the box body through a second clamping seat, and the top wall of the box body is provided with a second through groove for connecting the second liquid inlet valve group;
the detection cavity of the fault judging mechanism is arranged on one side part of the box body.
4. An ultrafiltration apparatus according to claim 3, wherein two of the failure determination mechanisms are provided, and the two failure determination mechanisms are located at both side positions of the tank body, respectively.
5. The ultrafiltration apparatus according to claim 4, wherein a collection chamber for collecting the ultrafiltered liquid is provided in the tank;
the bottom of the detection cavity is provided with a liquid draining cavity.
6. The ultrafiltration apparatus according to claim 5, wherein the depth of the drainage chamber is greater than the depth of the collection chamber such that there is a height difference between the bottom of the drainage chamber and the bottom of the collection chamber.
7. The ultrafiltration apparatus according to claim 6, wherein a first spring is connected between the first through slot on the top wall of the detection chamber and the first clamping seat.
8. The ultrafiltration apparatus according to claim 7, wherein a second spring is connected between a second through slot in the top wall of the housing and a second clamping seat.
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| CN202110704076.2A CN113522034B (en) | 2021-06-24 | 2021-06-24 | Fault judging mechanism and ultrafiltration equipment based on same |
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| CN202110704076.2A CN113522034B (en) | 2021-06-24 | 2021-06-24 | Fault judging mechanism and ultrafiltration equipment based on same |
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