CN212548761U - Membrane filter for on-line analysis - Google Patents
Membrane filter for on-line analysis Download PDFInfo
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- CN212548761U CN212548761U CN202020585099.7U CN202020585099U CN212548761U CN 212548761 U CN212548761 U CN 212548761U CN 202020585099 U CN202020585099 U CN 202020585099U CN 212548761 U CN212548761 U CN 212548761U
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- filtering component
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Abstract
The utility model discloses a membrane filter for on-line analysis, including fixed cavity, observation cavity and the hydrophobic filtering component of setting between fixed cavity and observation cavity, form the filter chamber between fixed cavity and the hydrophobic filtering component, it forms the appearance air chamber to observe between cavity and the hydrophobic filtering component be provided with appearance gas inlet, leakage fluid dram and appearance gas outlet on the fixed cavity, appearance gas inlet and leakage fluid dram communicate with the filter chamber respectively, appearance gas outlet and appearance air chamber intercommunication. The utility model discloses an assembly method of hydrophobic filtering component in fixed cavity and observation cavity can satisfy the technological requirement of changing hydrophobic filter piece on line, and overall structure is simple moreover, and convenient operation is swift.
Description
Technical Field
The utility model belongs to the technical field of online analysis, in particular to a gas-liquid separation membrane filter that is arranged in gaseous online analytic system sample gas.
Background
Before the gas is analyzed on line, the gas needs to be dried and filtered, and the prior art generally adopts a gas-water separator to dry the sample gas, but cannot separate fine liquid fog which can endanger the safety of a rear-end pretreatment element and an analysis instrument. The traditional membrane filter is only used for protective filtration of a gas analyzer, has a complex structure, cannot maintain and replace a filtration membrane on line, has low filtering capacity for liquid mist, increases airflow resistance after the liquid mist wets the filtration membrane, has low tensile strength, and can cause serious faults such as blockage or damage of the filtration membrane.
SUMMERY OF THE UTILITY MODEL
The invention of the utility model aims to: in view of the above problems, the present invention provides a membrane filter for on-line analysis, which can effectively separate gas from liquid in a sample gas to be sampled, can be maintained on-line, and has a simple structure and reliable use.
The technical scheme of the utility model is realized like this: a membrane filter for on-line analysis, characterized in that: including fixed cavity, observation cavity and the hydrophobic filtering component of setting between fixed cavity and observation cavity, form the filter chamber between fixed cavity and the hydrophobic filtering component, form the appearance air chamber between observation cavity and the hydrophobic filtering component be provided with appearance gas inlet, leakage fluid dram and appearance gas outlet on the fixed cavity, appearance gas inlet and leakage fluid dram communicate with the filter chamber respectively, appearance gas outlet and appearance gas chamber intercommunication.
Membrane filter for on-line analysis, its fixed cavity links together through connecting fastening components detachablely with observing the cavity to press from both sides tight the fixing between fixed cavity and observation cavity with hydrophobic filtering component.
Membrane filter for on-line analysis, it connect fastening components and include screw and butterfly nut, it is provided with the ground ear of symmetry to observe the cavity, the screw passes the limit ear of observing the cavity and is connected with fixed cavity, connects the fastening with fixed cavity and observation cavity through the butterfly nut on the screw and is in the same place.
Membrane filter for on-line analysis, its hydrophobic filtering component comprises first orifice plate, second orifice plate and the hydrophobic filter membrane of clamp between first orifice plate and second orifice plate, sample gas in the filter chamber filters the back through hydrophobic filter membrane, enters into in the sample gas chamber.
Membrane filter for on-line analysis, it has a plurality of round holes and/or rectangular shape hole to open on first orifice plate and the second orifice plate.
Membrane filter for on-line analysis, it is in be provided with the step that is used for installing hydrophobic filtering component in the fixed cavity, step department is arranged in to hydrophobic filtering component's a side edge portion, the tip of observing the cavity compresses tightly at hydrophobic filtering component's opposite side edge portion observe to be provided with the slot of ventilating that is used for linking up appearance air chamber and appearance gas outlet on the cavity.
Membrane filter for on-line analysis, its the slot of ventilating on the observation cavity is a plurality of along its circumference evenly distributed the sample gas chamber inner wall of fixed cavity is provided with the annular slot that corresponds the intercommunication with a plurality of slots of ventilating, annular slot and sample gas export intercommunication.
Membrane filter for online analysis, it is in the sample gas chamber inner wall of fixed cavity is provided with the annular mounting groove, the embedded O shape sealing washer that is equipped with of annular mounting groove, O shape sealing washer sets up between fixed cavity and observation cavity.
Membrane filter for online analysis, its filter chamber upper end is the sample gas import, and the lower extreme is the leakage fluid dram, sample gas chamber upper end is the export of sample gas.
Membrane filter for on-line analysis, it fixed cavity is the hollow cylinder structure, its one end is sealed, and the other end is open, observe the cavity and be the hollow cylinder end cover structure, its one end is sealed, and the other end is open, observe the open end of cavity and insert by the open end of fixed cavity, and will hydrophobic filtering component compresses tightly in fixed cavity, hydrophobic filtering component forms the filter chamber with the blind end cooperation of fixed cavity, hydrophobic filtering component forms kind air chamber with the blind end cooperation of observing the cavity.
Compared with the prior art, the utility model, following technological effect has:
1. the utility model discloses an assembly method of hydrophobic filtering component in fixed cavity and observation cavity can satisfy the technological requirement of changing hydrophobic filter piece on line, and overall structure is simple moreover, and convenient operation is swift.
2. The utility model discloses well hydrophobic filtration membrane presss from both sides and establishes between two orifice plates to play the protection diaphragm and do not receive the harm, and prolong its life's purpose.
3. The utility model discloses in through the hydrophobic filter membrane of vertical centre gripping, be favorable to strengthening its tensile strength, arrange the top in with the sample gas import, the below is arranged in to the leakage fluid dram, easily blows and washes away the pollutant that probably remains on it, prevents that the filter from blockking up.
4. The utility model discloses in observe the preferred transparent PC of cavity, the luminousness is higher, the accessible transparent observation cavity observe inside hydrophobic filter membrane's in service behavior, if excessively pollute, inevitable air resistance increase can screw down butterfly nut during the dismantlement, changes hydrophobic filter membrane on line.
Drawings
Fig. 1 is a plan view of the present invention.
Fig. 2 is a sectional view a-a in fig. 1.
Fig. 3 is a schematic structural diagram of the middle orifice plate of the present invention.
The labels in the figure are: the device comprises a fixed cavity 1, an observation cavity 2, a filter chamber 3, a sample gas chamber 4, a sample gas inlet 5, a liquid outlet 6, a sample gas outlet 7, a screw 8, a butterfly nut 9, a lug 10, a first pore plate 11, a second pore plate 12, a hydrophobic filter membrane 13, a step 14, a ventilation groove 15, an annular groove 16 and an O-shaped sealing ring 17.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following description is made in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in figures 1, 2 and 3, a membrane filter for on-line analysis comprises a fixed cavity 1, an observation cavity 2 and a hydrophobic filter assembly arranged between the fixed cavity 1 and the observation cavity 2, wherein the fixed cavity 1 and the observation cavity 2 are detachably connected together through a connecting and fastening assembly, the hydrophobic filter assembly is clamped and fixed between the fixed cavity 1 and the observation cavity 2, the connecting and fastening assembly comprises a screw 8 and a butterfly nut 9, the observation cavity 2 is provided with symmetrical lugs 10, the lugs are provided with mounting threaded through holes, the screw 8 passes through the lug 10 of the observation cavity 2 and is connected with the fixed cavity 1, the fixed cavity 1 and the observation cavity 2 are connected and fastened together through the butterfly nut 9 on the screw 8, and the assembly mode of the hydrophobic filter assembly in the fixed cavity and the observation cavity is adopted, can meet the process requirement of replacing the hydrophobic filter element on line.
Specifically, the hydrophobic filter assembly comprises a first pore plate 11, a second pore plate 12 and a hydrophobic filter membrane 13 clamped between the first pore plate 11 and the second pore plate 12, the membrane is easily protected from being damaged, the service life is prolonged, sample gas in the filter chamber 3 enters the sample gas chamber 4 after being filtered by the hydrophobic filter membrane 13, the first pore plate 11 and the second pore plate 12 are thin discs provided with a plurality of corresponding round holes and/or elongated holes, and the material of the thin discs is preferably transparent PC.
In the embodiment, the fixed cavity 1 is a hollow cylindrical structure, one end of the fixed cavity is closed, the other end of the fixed cavity is open, the observation cavity 2 is a hollow cylindrical end cover structure, one end of the observation cavity is closed, the other end of the observation cavity is open, the observation cavity is preferably made of transparent PC, the light transmittance is high, the use condition of the internal hydrophobic filter membrane can be observed through the transparent observation cavity, if the internal hydrophobic filter membrane is excessively polluted, the inevitable airflow resistance is increased, a butterfly nut can be screwed down during disassembly, and the hydrophobic filter membrane can be replaced on line; the fixed cavity 1 is internally provided with a step 14 for installing a hydrophobic filtering component, the edge part of one side of the hydrophobic filtering component is arranged at the step 14, the open end of the observation cavity 2 is inserted from the open end of the fixed cavity 1 and is tightly pressed at the edge part of the other side of the hydrophobic filtering component, so that the hydrophobic filtering component is assembled in the fixed cavity 1, the hydrophobic filtering component is matched with the closed end of the fixed cavity 1 to form a filtering chamber 3, the hydrophobic filtering component is matched with the closed end of the observation cavity 2 to form a sample gas chamber 4, the fixed cavity 1 is provided with a sample gas inlet 5, a liquid discharge port 6 and a sample gas outlet 7 along the radial direction thereof, the sample gas inlet 5 and the liquid discharge port 6 are respectively communicated with the filtering chamber 3, the sample gas outlet 7 is communicated with the sample gas chamber 4, and the observation cavity 2 is provided with a ventilation groove 15 for communicating the sample gas chamber 4 and the sample gas outlet 7, specifically, the upper end of the filter chamber 3 is a sample gas inlet 5, the lower end of the filter chamber is a liquid outlet 6, so that pollutants possibly remaining on the filter chamber can be easily flushed away, the filter is prevented from being blocked, and the upper end of the sample gas chamber 4 is a sample gas outlet 7.
The gas-permeable grooves 15 on the observation cavity 2 are uniformly distributed along the circumference of the observation cavity, the inner wall of the sample gas chamber 4 of the fixed cavity 1 is provided with annular grooves 16 correspondingly communicated with the plurality of gas-permeable grooves 15, the annular grooves 16 are communicated with the sample gas outlet 7, and the filtered sample gas firstly passes through the gas-permeable grooves on the observation cavity and then is led out from the sample gas outlet along the annular grooves which are used for being annularly communicated with the internal gas circuit of the fixed cavity; the inner wall of the sample gas chamber 4 of the fixed cavity 1 is provided with an annular mounting groove, an O-shaped sealing ring 17 is embedded in the annular mounting groove, and the O-shaped sealing ring 17 is arranged between the fixed cavity 1 and the observation cavity 2 and used for sealing a mounting gap between the fixed cavity and the observation cavity.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A membrane filter for on-line analysis, characterized in that: including fixed cavity (1), observe cavity (2) and set up at fixed cavity (1) and observe the hydrophobic filtering component between cavity (2), form filter chamber (3) between fixed cavity (1) and the hydrophobic filtering component, observe and form appearance air chamber (4) between cavity (2) and the hydrophobic filtering component be provided with appearance gas inlet (5), leakage fluid dram (6) and appearance gas outlet (7) on fixed cavity (1), appearance gas inlet (5) and leakage fluid dram (6) communicate with filter chamber (3) respectively, appearance gas outlet (7) and appearance air chamber (4) intercommunication.
2. The membrane filter for on-line analysis according to claim 1, wherein: the fixed cavity (1) and the observation cavity (2) are detachably connected together through a connecting and fastening component, and the hydrophobic filtering component is clamped and fixed between the fixed cavity (1) and the observation cavity (2).
3. The membrane filter for on-line analysis according to claim 2, wherein: the connecting and fastening assembly comprises a screw (8) and a butterfly nut (9), the observing cavity (2) is provided with symmetrical edge lugs (10), the screw (8) penetrates through the edge lugs (10) of the observing cavity (2) and is connected with the fixing cavity (1), and the fixing cavity (1) and the observing cavity (2) are connected and fastened together through the butterfly nut (9) on the screw (8).
4. The membrane filter for on-line analysis according to claim 1, wherein: the hydrophobic filtering component is composed of a first pore plate (11), a second pore plate (12) and a hydrophobic filtering membrane (13) clamped between the first pore plate (11) and the second pore plate (12), and sample gas in the filtering chamber (3) enters the sample gas chamber (4) after being filtered by the hydrophobic filtering membrane (13).
5. The membrane filter for on-line analysis according to claim 4, wherein: the first pore plate (11) and the second pore plate (12) are provided with a plurality of round holes and/or elongated holes.
6. The membrane filter for on-line analysis according to claim 1, wherein: be provided with step (14) that are used for installing hydrophobic filtering component in fixed cavity (1), step (14) department is arranged in to hydrophobic filtering component's a side edge portion, the tip of observing cavity (2) compresses tightly at hydrophobic filtering component's opposite side edge portion observe and be provided with ventilation slot (15) that are used for communicateing sample air chamber (4) and sample gas outlet (7) on cavity (2).
7. The membrane filter for on-line analysis according to claim 6, wherein: the observation cavity is characterized in that a plurality of ventilation grooves (15) in the observation cavity (2) are uniformly distributed along the circumference of the observation cavity, annular grooves (16) which are correspondingly communicated with the ventilation grooves (15) are arranged on the inner wall of the sample air chamber (4) of the fixed cavity (1), and the annular grooves (16) are communicated with the sample air outlet (7).
8. The membrane filter for on-line analysis according to claim 1, wherein: the inner wall of the sample air chamber (4) of the fixed cavity (1) is provided with an annular mounting groove, an O-shaped sealing ring (17) is embedded in the annular mounting groove, and the O-shaped sealing ring (17) is arranged between the fixed cavity (1) and the observation cavity (2).
9. The membrane filter for on-line analysis according to claim 1, wherein: the upper end of the filtering chamber (3) is provided with a sample gas inlet (5), the lower end of the filtering chamber is provided with a liquid outlet (6), and the upper end of the sample gas chamber (4) is provided with a sample gas outlet (7).
10. The membrane filter for on-line analysis according to any one of claims 1 to 9, wherein: the fixed cavity (1) is of a hollow cylindrical structure, one end of the fixed cavity is closed, the other end of the fixed cavity is open, the observation cavity (2) is of a hollow cylindrical end cover structure, one end of the observation cavity is closed, the other end of the observation cavity is open, the open end of the observation cavity (2) is inserted into the open end of the fixed cavity (1), the hydrophobic filtering component is tightly pressed in the fixed cavity (1), the hydrophobic filtering component is matched with the closed end of the fixed cavity (1) to form a filtering chamber (3), and the hydrophobic filtering component is matched with the closed end of the observation cavity (2) to form a sample air chamber (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020585099.7U CN212548761U (en) | 2020-04-17 | 2020-04-17 | Membrane filter for on-line analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020585099.7U CN212548761U (en) | 2020-04-17 | 2020-04-17 | Membrane filter for on-line analysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212548761U true CN212548761U (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020585099.7U Active CN212548761U (en) | 2020-04-17 | 2020-04-17 | Membrane filter for on-line analysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212548761U (en) |
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2020
- 2020-04-17 CN CN202020585099.7U patent/CN212548761U/en active Active
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