Purifier filter element based on high-temperature steam

Abstract

The utility model discloses a purifier filter element based on high-temperature steam, which comprises a first metal sintering filter screen (1) in the shape of a hollow pipe, one end of the first metal sintering filter screen (1) is connected with a sealing cover (2), the other end of the first metal sintering filter screen (1) is connected with a fixing cover (3), and the outside of the fixing cover (3) is in threaded connection with a locking piece (4). A supporting pipe (5) is arranged on the inner side of the first metal sintering filter screen (1), one end of the supporting pipe (5) is connected with the sealing cover (2) in a buckled mode, the other end of the supporting pipe (5) is connected with the fixing cover (3) or the locking piece (4) in a buckled mode, and the supporting pipe (5) is used for limiting the relative positions of the sealing cover (2) and the fixing cover (3). And the sealing cover (2) and the fixing cover (3) are used for extruding and fixing the first metal sintering filter screen (1) from two ends. The utility model has the characteristics that the stability is good, and the filter screen can be independently replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a steam filtering device, especially a purifier filter element based on high temperature steam. BACKGROUND

[0002] The high temperature steam containing impurities and solid particles is produced in the production process of steam turbine and other equipment, so that the manufacturer needs to filter the steam through the steam purifier to obtain the commercial steam. On this basis, the conventional steam purifier filters the high temperature steam by passing through the tubular filter element, so that the gas in the high temperature steam can pass through the filter screen and be discharged from the middle of the filter element, and the impurity particles in the high temperature steam can be intercepted outside the filter screen or be adsorbed by the adsorption layer coated on the surface of the filter screen to realize the filtering function. The operating personnel can regularly clean the surface of the filter screen to prevent the excessive adhesion of impurities from affecting the filtering efficiency.

[0003] The conventional purifier filter element mainly consists of a metal sintered filter screen, a sealing cover and a fixing cover. The metal sintered filter screen is a hollow pipe structure, the sealing cover and the fixing cover are respectively welded or glued to the two ends of the metal sintered filter screen, the sealing cover seals one end of the metal sintered filter screen, and the fixing cover is fixed to the other end of the metal sintered filter screen and forms a threaded pipe for discharging gas, so that it can be connected to the external pipe support through the threaded pipe during installation, and the high temperature steam is discharged outward from the threaded pipe after entering the metal sintered filter screen to realize the filtering effect. However, the filter element structure has the following defects: on the one hand, the structure needs to be supported and fixed by the metal sintered filter screen, so that when the connecting parts at both ends of the metal sintered filter screen are damaged and peeled off, the sealing cover or the metal sintered filter screen is easily detached, thereby affecting the service life of the filter element. On the other hand, since the filter element is an integrated structure, the metal sintered filter screen cannot be taken out and replaced alone, so that when the metal sintered filter screen or the adsorption layer on its surface is damaged, the operating personnel cannot replace the filter screen alone, thereby increasing the maintenance cost of the manufacturer.

[0004] Therefore, the existing purifier filter element has the problems of poor stability and the filter screen cannot be replaced alone. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a purifier filter element based on high temperature steam. It has the characteristics of good stability and the filter screen can be replaced alone.

[0006] The utility model discloses a technical scheme: a purifier filter core based on high temperature steam, including the first metal sintered filter screen of hollow pipe shape, the one end of first metal sintered filter screen is connected with the sealing cover, the other end of first metal sintered filter screen is connected with the fixed cover, the outside of fixed cover is connected with the locking piece, the inside of first metal sintered filter screen is equipped with the support tube, and the one end of support tube buckling connection sealing cover, and the other end of support tube buckling connection fixed cover or locking piece, and support tube is used for the relative position of sealing cover and fixed cover and is limited, sealing cover and fixed cover are used for extruding and fixing first metal sintered filter screen from both ends.

[0007] In the foregoing purifier filter core based on high temperature steam, the middle part of the fixed cover is provided with a limiting ring, a pressing plate is placed on the limiting ring, the end part of the support tube is buckling connected with the pressing plate, and the pressing plate around the support tube is provided with a gas passage for the high temperature steam to pass through.

[0008] In the foregoing purifier filter core based on high temperature steam, the upper end of the support tube is buckling connected with the pressing plate through the step part, and the lower end of the support tube passes through the sealing cover and is screw connected with a fixed nut.

[0009] In the foregoing purifier filter core based on high temperature steam, the two ends of the support tube are respectively buckling connected with the sealing cover and the locking piece, the middle part of the locking piece is buckling connected with a first end cover, the end part of the first end cover passes through the fixed cover and is screw connected with the support tube, the middle part of the sealing cover is buckling connected with a second end cover, and the end part of the second end cover passes through the sealing cover and is screw connected with the support tube.

[0010] In the foregoing purifier filter core based on high temperature steam, the locking piece is provided with a gas passage for the high temperature steam to pass through.

[0011] In the foregoing purifier filter core based on high temperature steam, the side wall of the support tube is provided with a gas channel for the high temperature steam to pass through around, the inside of the support tube is provided with a second metal sintered filter screen in a hollow pipe shape, and the second metal sintered filter screen and the support tube are in an inner-outer nested mode; the middle part of the first end cover forms a vent hole, and the end part of the first end cover, away from the support tube, forms a connecting part for connecting an external gas pipe.

[0012] Compared with the prior art, the utility model has the following characteristics:

[0013] (1) The utility model discloses a connection structure cooperation between support pipe, sealing cover, fixed cover and locking piece makes support pipe can replace first metal sintered filter screen to support and limit sealing cover and fixed cover after installation, thereby on one hand improves the stress intensity of filter core whole and reduces the possibility of first metal sintered filter screen stress breakage, on the other hand still can conveniently make operating personnel assemble filter core and replace first metal sintered filter screen later, i.e. operating personnel can remove support pipe and release the fixation of sealing cover later, makes sealing cover and first metal sintered filter screen can be removed from fixed cover in turn, thereby realizes the individual replacement of first metal sintered filter screen,

[0014] (2) The limitation of support pipe connection structure makes the utility model can form two different assembly structures and be applicable to different application occasions respectively, thereby further improves the applicability and use effect of the utility model,

[0015] (3) The structure cooperation of support pipe, second metal sintered filter screen and first end cover makes the utility model can also form double-layer filter structure and be applicable to the processing of different high temperature steam respectively, i.e. after the high temperature steam passes through first metal sintered filter screen and enters the inside of filter core, a part can directly pass through locking piece and discharge outward, and another part can pass through second metal sintered filter screen and enter the inside of support pipe and discharge outward through first end cover, thereby realizes the batch processing of high temperature steam, on the basis, manufacturers can set up different functional filter layers according to demand and obtain high temperature steam with different filtering effects respectively, thereby improves the functionality of the utility model,

[0016] (4) The limitation of second metal sintered filter screen installation structure makes operating personnel also can individually remove second metal sintered filter screen when needing to clean second metal sintered filter screen, and will not affect the structural stability of filter core whole, thereby further facilitates the cleaning operation of operating personnel,

[0017] Therefore, the utility model has the characteristics of good stability and filter screen can be individually replaced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structural schematic diagram of example 1;

[0019] Figure 2 It is the structural schematic diagram of example 2;

[0020] Figure 3 It is the structural schematic diagram of example 3;

[0021] Figure 4 It is the structural schematic diagram of example 4;

[0022] Figure 5is a structural schematic diagram of Example 5;

[0023] The marks in the drawings are: 1-first metal sintered filter screen, 2-sealing cover, 3-fixing cover, 4-locking part, 5-supporting tube, 6-limiting ring, 7-pressing plate, 8-fixing nut, 9-step part, 10-sealing ring, 11-first end cover, 12-second end cover, 13-second metal sintered filter screen, 14-separating plate, 15-first connecting part, 16-second connecting part. DETAILED DESCRIPTION

[0024] The utility model will be further explained in connection with the drawings and examples, but it is not as the basis for limiting the utility model.

[0025] Example 1. A high-temperature steam-based purifier filter element, as shown in Figure 1 The first metal sintered filter screen 1 can be formed by stacking multiple layers of metal filter screens. One end of the first metal sintered filter screen 1 is connected with a sealing cover 2 through a snap fit, and the other end is connected with a fixing cover 3 through a snap fit. The fixing cover 3 is externally connected with a locking part 4 through a thread. The inside of the first metal sintered filter screen 1 is provided with a supporting tube 5. One end of the supporting tube 5 is connected with the sealing cover 2 through a snap fit and forms a seal. The other end of the supporting tube 5 is connected with the fixing cover 3. The supporting tube 5 is used to limit the relative position of the sealing cover 2 and the fixing cover 3. The sealing cover 2 and the fixing cover 3 are used to extrude and fix the first metal sintered filter screen 1 from both ends. When the purifier filter element is installed, it is extruded and fixed on the external mounting plate from the top and bottom through the cooperation of the locking part 4 and the fixing cover 3.

[0026] The middle part of the fixing cover 3 is provided with a limiting ring 6, and the pressing plate 7 is placed on the limiting ring 6. The four peripheral edges of the pressing plate 7 are in close contact with the limiting ring 6. The end of the supporting tube 5 is connected with the pressing plate 7, and the pressing plate 7 around the supporting tube 5 is provided with a gas passage for high-temperature steam to pass through.

[0027] The upper end of the supporting tube 5 is connected with the pressing plate 7 through a step part 9. The lower end of the supporting tube 5 passes through the sealing cover 2 and is connected with a fixing nut 8 through a thread. The step part and the sealing cover 2 are sealed by a sealing ring 10 and a gasket.

[0028] The support pipe 5, the limiting ring 6, the pressing plate 7 and the fixing nut 8 are cooperatively arranged, so that the sealing cover 2 and the fixing cover 3 are limited, the sealing cover 2 and the fixing cover 3 can press and limit the first metal sintered filter screen 1 from both ends after installation, and the connection stability of the first metal sintered filter screen 1 and the sealing cover 2 is ensured. When the operating personnel needs to replace the first metal sintered filter screen 1 in the later period, the operating personnel can take down the sealing cover 2 and the first metal sintered filter screen 1 in sequence after rotating out the fixing nut 8, so that the operating personnel is facilitated in later dismounting and replacement.

[0029] Embodiment 2. A high-temperature steam-based purifier filter core, which is composed of Figure 2 as shown in the figure, comprising a first metal sintered filter screen 1 in the shape of a hollow pipe, the first metal sintered filter screen 1 can be stacked by multiple layers of metal filter screens, one end of the first metal sintered filter screen 1 is connected with a sealing cover 2, the other end of the first metal sintered filter screen 1 is connected with a fixing cover 3, the outside of the fixing cover 3 is threadedly connected with a locking piece 4, the inside of the first metal sintered filter screen 1 is provided with a support pipe 5, one end of the support pipe 5 is in close contact with the inner wall of the sealing cover 2, the other end of the support pipe 5 is in close contact with the locking piece 4, the support pipe 5 is used for limiting the relative position of the sealing cover 2 and the fixing cover 3, the sealing cover 2 and the fixing cover 3 are used for extruding and fixing the first metal sintered filter screen 1 from both ends.

[0030] The purifier filter core is extruded and fixed on the external mounting plate from the upper and lower sides through the cooperation of the locking piece 4 and the fixing cover 3 during installation, and flexible pads or red steel paper can be arranged between the external mounting plate and the fixing cover 3 to prevent the purifier filter core from shaking due to size errors.

[0031] The middle part of the locking piece 4 is buckled and connected with a first end cap 11, the end part of the first end cap 11 penetrates through the fixing cover 3 and threadedly connects the support pipe 5; the middle part of the sealing cover 2 is buckled and connected with a second end cap 12, the end part of the second end cap 12 penetrates through the sealing cover 2 and threadedly connects the support pipe 5, the first end cap 11 and the locking piece 4 are sealed from each other through a sealing ring, and the second end cap 12 and the sealing cover 2 are sealed from each other through a sealing ring.

[0032] The locking piece 4 is provided with a gas passage for high-temperature steam to pass through.

[0033] Compared with embodiment 1, the connecting structure of the support pipe 5 is adjusted in this embodiment, so that the support pipe 5 can realize the functions of supporting and limiting the sealing cover 2 and the fixing cover 3 at the same time, thereby preventing the first metal sintered filter screen 1 from being deformed under pressure. When the first metal sintered filter screen 1 needs to be replaced in the later period, the operating personnel can rotate out the second end cap 12 in the same way, and then take down the sealing cover 2 and the first metal sintered filter screen 1 in sequence.

[0034] Example 3. A purifier filter element based on high-temperature steam, configured as follows: Figure 3 As shown, the filter includes a first sintered metal filter 1 in the shape of a hollow tube. The first sintered metal filter 1 can be composed of multiple layers of metal filter screens stacked together. One end of the first sintered metal filter 1 is connected to a sealing cap 2, and the other end of the first sintered metal filter 1 is connected to a fixing cap 3. The fixing cap 3 is externally threaded with a locking member 4. The inner side of the first sintered metal filter 1 is provided with a support tube 5. One end of the support tube 5 is engaged with the sealing cap 2, and the other end of the support tube 5 is in contact with the inner surface of the locking member 4. The support tube 5 is used to limit the relative position of the sealing cap 2 and the fixing cap 3. The sealing cap 2 and the fixing cap 3 are used to squeeze and fix the first sintered metal filter 1 from both ends.

[0035] The locking member 4 is fastened to the middle with a first end cap 11, the end of the first end cap 11 passes through the fixing cover 3 and is threaded to the support tube 5; the sealing cover 2 is fastened to the middle with a second end cap 12, the end of the second end cap 12 passes through the sealing cover 2 and is threaded to the support tube 5; the first end cap 11 and the locking member 4 are sealed to each other by a sealing ring, and the second end cap 12 and the sealing cover 2 are sealed to each other by a sealing ring.

[0036] The locking component 4 is provided with an air vent for high-temperature steam to pass through.

[0037] The support tube 5 has air passages around its sidewalls for high-temperature steam to pass through. The inner side of the support tube 5 is provided with a second metal sintered filter screen 13 in the shape of a hollow tube. The mesh size of the second metal sintered filter screen 13 is smaller than that of the first metal sintered filter screen 1, or the surface of the second metal sintered filter screen 13 is coated with an adsorption layer for adsorbing specific impurities in the high-temperature steam. The second metal sintered filter screen 13 and the support tube 5 are nested together. A vent hole is formed in the middle of the first end cap 11. A connecting part for connecting an external air pipe is formed at the end of the first end cap 11 away from the support tube 5. The external air pipe can lead out the high-temperature steam filtered by the second metal sintered filter screen 13 separately.

[0038] The sealing cover 2 has a mounting groove in the middle through which the fastening connection support tube 5 passes. The support tube 5 is fastened in the mounting groove and forms an interference fit with the inner wall of the mounting groove.

[0039] Compared with the embodiment 2, the present embodiment sets the air passage on the side wall of the support tube 5 and sets the second metal sintered filter screen 13 on the inner side of the support tube 5, so that the filter core can also form a double-layer filter structure and be used to generate high-temperature steam with different filtering effects. That is, after the external steam passes through the first metal sintered filter screen 1, part of the steam flows along the gap between the first metal sintered filter screen 1 and the support tube 5 towards the locking piece 4 and is discharged outwardly through the locking piece 4, and the other part of the steam passes through the support tube 5 and the second metal sintered filter screen 13 and is discharged outwardly from the first end cover 11 at the end of the support tube 5, so that the two kinds of steam can be delivered in batches after filtering, and the two kinds of steam can be used in different environments, thereby improving the filtering effect of the present embodiment.

[0040] The support tube 5 can also provide a temporary limiting function for the sealing cover 2 by interference connection after the sealing cover 2 and the support tube 5 are buckled to each other, so that when the second metal sintered filter screen 13 needs to be replaced alone, the operator can rotate out the second end cover 12 and directly pull out the second metal sintered filter screen 13 from the inner hole of the sealing cover 2, thereby facilitating the replacement of the operator. During the replacement of the second metal sintered filter screen 13, the sealing cover 2 and the support tube 5 can remain connected and press the first metal sintered filter screen 1, thereby effectively preventing the filter core from being directly loosened after the second end cover 12 is disassembled.

[0041] Embodiment 4. A filter core of a high-temperature steam-based purifier, which is composed of Figure 4 a first metal sintered filter screen 1 in the shape of a hollow tube, the first metal sintered filter screen 1 being stacked by multiple layers of metal filter screens, one end of the first metal sintered filter screen 1 being connected with a sealing cover 2, the other end of the first metal sintered filter screen 1 being connected with a fixed cover 3, the outer part of the fixed cover 3 being threadedly connected with a locking piece 4, the inner side of the first metal sintered filter screen 1 being provided with a support tube 5, one end of the support tube 5 being buckled to the sealing cover 2, the other end of the support tube 5 being buckled to the inner surface of the locking piece 4, the support tube 5 being used to limit the relative position of the sealing cover 2 and the fixed cover 3, the sealing cover 2 and the fixed cover 3 being used to press and fix the first metal sintered filter screen 1 from both ends.

[0042] The middle part of the locking piece 4 is buckled and connected with a first end cover 11, the first end cover 11 being a closed plug structure, the end part of the first end cover 11 penetrating through the fixed cover 3 and being threadedly connected with the support tube 5; the middle part of the sealing cover 2 is buckled and connected with a second end cover 12, the end part of the second end cover 12 penetrating through the sealing cover 2 and being threadedly connected with the support tube 5, the first end cover 11 and the locking piece 4 being sealed to each other by a sealing ring, the second end cover 12 and the sealing cover 2 being sealed to each other by a sealing ring.

[0043] The locking piece 4 is provided with a gas passage for high-temperature steam to pass through.

[0044] The middle part of the support pipe 5 is provided with a partition plate 14, and the upper part of the partition plate 14 is provided with a blocking ring located inside the first metal sintered filter screen 1. The blocking ring is used to shield the outside of the first metal sintered filter screen 1, so that the high-temperature steam cannot enter the inside through the first metal sintered filter screen 1. The periphery of the partition plate 14 is in close contact with the inner wall of the first metal sintered filter screen 1. The periphery of the side wall of the support pipe 5 is provided with an air channel for the high-temperature steam to pass through. The air channel is located on the upper and lower sides of the partition plate 14 along the height direction. The inside of the support pipe 5 is provided with a second metal sintered filter screen 13 in the shape of a hollow pipe. The surface of the second metal sintered filter screen 13 is coated with an adsorption layer for adsorbing specific impurities in the high-temperature steam. The second metal sintered filter screen 13 and the support pipe 5 are arranged in an inner-outer nested manner.

[0045] The middle part of the sealing cover 2 is provided with a mounting groove through which the support pipe 5 is connected. The support pipe 5 is connected in the mounting groove and forms an interference fit with the inner wall of the mounting groove.

[0046] Compared with Example 3, in this embodiment, through the cooperation of the partition plate 14 and the blocking ring, when the high-temperature steam is filtered, it can first pass through the first metal sintered filter screen 1 below the partition plate 14 and enter the filter core, then pass through the air channel below the partition plate 14 and the second metal sintered filter screen 13 into the support pipe 5, and then flow out from the air channel and the second metal sintered filter screen 13 above the partition plate 14 to the periphery, and finally be discharged outward from the air outlet on the locking piece 4. Under the above cooperation, the high-temperature steam can be filtered three times in this embodiment, thereby improving the adsorption effect of the adsorption layer on the surface of the second metal sintered filter screen 13 on impurities in the high-temperature steam.

[0047] Example 5. A high-temperature steam-based purifier filter core, which is composed of Figure 5 as shown, including a first metal sintered filter screen 1 in the shape of a hollow pipe. The first metal sintered filter screen 1 can be stacked by multiple layers of metal filter screens. One end of the first metal sintered filter screen 1 is connected with a sealing cover 2. The other end of the first metal sintered filter screen 1 is connected with a fixed cover 3. The outside of the fixed cover 3 is threadedly connected with a locking piece 4. The inside of the first metal sintered filter screen 1 is provided with a support pipe 5. One end of the support pipe 5 is interlocked with the sealing cover 2. The other end of the support pipe 5 is in close contact with the inner surface of the locking piece 4. The support pipe 5 is used to limit the relative position of the sealing cover 2 and the fixed cover 3. The sealing cover 2 and the fixed cover 3 are used to extrude and fix the first metal sintered filter screen 1 from both ends.

[0048] The middle part of the locking piece 4 is connected with a first end cover 11, the end of the first end cover 11 passes through the fixed cover 3 and is threadedly connected with the support pipe 5; the middle part of the sealing cover 2 is connected with a second end cover 12, the end of the second end cover 12 passes through the sealing cover 2 and is threadedly connected with the support pipe 5, the first end cover 11 and the locking piece 4 are sealed with each other through a sealing ring, and the second end cover 12 and the sealing cover 2 are sealed with each other through a sealing ring.

[0049] The locking piece 4 is connected with a first connecting part 15 for connecting an external air pipe, through which the high-temperature steam filtered through the first metal sintered filter screen 1 can be separately led out.

[0050] The middle part of the support pipe 5 is provided with a partition plate 14, the periphery of the partition plate 14 is matched with the inner wall of the first metal sintered filter screen 1, the periphery of the side wall of the support pipe 5 below the partition plate 14 is provided with an air passage for the high-temperature steam to pass through, the inside of the support pipe 5 is provided with a second metal sintered filter screen 13 in the shape of a hollow pipe, the air passage is completely covered by the second metal sintered filter screen 13 in the height direction, the mesh size of the second metal sintered filter screen 13 is smaller than that of the first metal sintered filter screen 1, or the surface of the second metal sintered filter screen 13 is coated with an adsorption layer for adsorbing specific impurities in the high-temperature steam, and the second metal sintered filter screen 13 and the support pipe 5 are arranged in an inner-outer nested manner; the middle part of the first end cover 11 forms a vent hole, the end of the first end cover 11 away from the support pipe 5 forms a second connecting part 16 for connecting an external air pipe, through which the high-temperature steam filtered through the second metal sintered filter screen 13 can be separately led out.

[0051] The middle part of the sealing cover 2 is provided with a mounting groove through which the support pipe 5 passes, and the support pipe 5 is connected in the mounting groove and forms an interference fit with the inner wall of the mounting groove.

[0052] Compared with example 3, the gas passing mode of the filter core is adjusted in this example, that is, the high-temperature steam entering from above the partition plate 14 can pass through the first metal sintered filter screen 1 and the first connecting part 15 and be discharged outward, and the high-temperature steam entering from below the partition plate 14 can pass through the first metal sintered filter screen 1 and the second metal sintered filter screen 13 in turn and be discharged outward from the second connecting part 16, so that on the one hand, the segmented treatment and separate conveying of the high-temperature steam are realized, and on the other hand, the manufacturer can also separately extract the two kinds of high-temperature steam according to the needs, further improving the functionality of this example.

Claims

1. A high-temperature steam-based purifier cartridge, characterized by: The utility model provides a filter screen, which comprises a first metal sintered filter screen (1) in a hollow tube shape, a sealing cover (2) connected to one end of the first metal sintered filter screen (1), a fixing cover (3) connected to the other end of the first metal sintered filter screen (1), a locking piece (4) threadedly connected to the outside of the fixing cover (3), a support tube (5) arranged on the inner side of the first metal sintered filter screen (1), one end of the support tube (5) being buckled to the sealing cover (2), the other end of the support tube (5) being buckled to the fixing cover (3) or the locking piece (4), the support tube (5) being used for limiting the relative position of the sealing cover (2) and the fixing cover (3), and the sealing cover (2) and the fixing cover (3) being used for extruding and fixing the first metal sintered filter screen (1) from both ends.

2. A high temperature steam based purifier cartridge according to claim 1, characterized in that: The middle part of the fixing cover (3) is provided with a limiting ring (6), a pressing plate (7) is arranged on the limiting ring (6), the end of the support tube (5) is buckled to the pressing plate (7), and the pressing plate (7) around the support tube (5) is provided with a gas passage for high-temperature steam.

3. A high temperature steam based purifier cartridge according to claim 2, wherein: The upper end of the support tube (5) is buckled to the pressing plate (7) through a step portion (9), and the lower end of the support tube (5) passes through the sealing cover (2) and is threadedly connected with a fixing nut (8).

4. A high temperature steam based purifier cartridge according to claim 1, characterized in that: The two ends of the support tube (5) are respectively attached to the sealing cover (2) and the locking piece (4), the middle part of the locking piece (4) is buckled to a first end cover (11), the end of the first end cover (11) passes through the fixing cover (3) and is threadedly connected with the support tube (5), the middle part of the sealing cover (2) is buckled to a second end cover (12), and the end of the second end cover (12) passes through the sealing cover (2) and is threadedly connected with the support tube (5).

5. A high temperature steam based purifier cartridge according to claim 4, characterized in that: The locking piece (4) is provided with a gas passage for high-temperature steam.

6. A high temperature steam based purifier cartridge according to claim 4, characterized in that: The side wall of the support tube (5) is provided with a gas channel for high-temperature steam, the inner side of the support tube (5) is provided with a second metal sintered filter screen (13) in a hollow tube shape, the second metal sintered filter screen (13) and the support tube (5) are arranged in an inner-outer nested mode, the middle part of the first end cover (11) forms a vent hole, and the end of the first end cover (11) away from the support tube (5) forms a connecting portion for connecting an external gas pipe.

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