Chemical filter assembly

Abstract

The present invention relates to a chemical filter assembly for extending the lifespan of a filter module, reducing filter differential pressure, and simplifying maintenance by allowing individual replacement of a problematic filter module. To this end, the chemical filter assembly comprises an inner filter module in the shape of a tube with a hollow hole formed through it to filter a first substance, an outer filter module that surrounds the outer surface of the inner filter module to filter a second substance, and a module sealing member that seals the space between the inner filter module and the outer filter module. At this time, the outer filter module comprises two or more unit filter modules arranged separately along the outer surface of the inner filter module for filtering the second substance, a unit coupling module that detachably connects two adjacent unit filter modules, and a unit sealing member that seals the space between two adjacent unit filter modules.

Description

Technology Field

[0001] The present invention relates to a chemical filter assembly, and more specifically, to a chemical filter assembly for extending the lifespan of a filter module, reducing filter differential pressure, and simplifying maintenance by allowing problematic filter modules to be replaced individually. Background Technology

[0002] Chemical filters are used in precision manufacturing fields such as the semiconductor, display, and machine assembly industries. Precision manufacturing is carried out in cleanrooms where contaminants such as dust are minimized. In this case, if chemical contaminants such as acidic gases (NOx, SOx, HCl, HF, organic acids, etc.), basic gases (NH3, amines, etc.), organic sulfur compounds, and VOCs are present in the air inside the cleanroom, the product defect rate may increase. Chemical filters can be used to remove chemical contaminants from the air inside the cleanroom.

[0003] Generally, chemical filters are manufactured by coating or filling a support with an adsorbent, such as a polymer resin or carbon-based material. Chemical contaminants are removed from the air through the adsorption action of the adsorbent. Contaminants are removed by utilizing the adsorption action of the polymer resin or carbon-based material bonded to the support.

[0004] However, since chemical filters according to conventional technology use an integrated filter media, various chemical contaminants are filtered by a single filter media, which has the problem of a short lifespan.

[0005] In addition, the integrated filter media has high air resistance, resulting in a higher filter differential pressure.

[0006] In addition, integrated filter media have the problem that if the filtering function of any one of the various chemical contaminants deteriorates, the entire integrated filter media must be replaced. Prior art literature

[0007] Korean Registered Patent Publication No. 10-1278365 (Published June 25, 2013, Title of Invention: Chemical Filter and Air Purification Device Including the Same) The problem to be solved

[0008] The objective of the present invention is to solve the problems of the past by providing a chemical filter assembly that extends the lifespan of the filter module, reduces the filter differential pressure, and simplifies maintenance by allowing the individual replacement of defective filter modules. means of solving the problem

[0009] According to a preferred embodiment for achieving the objectives of the present invention described above, a chemical filter assembly according to the present invention comprises: an inner filter module in the shape of a tube having a hollow hole formed through it to filter a first substance; an outer filter module surrounding the outer surface of the inner filter module to filter a second substance; and a module sealing member sealing the space between the inner filter module and the outer filter module; wherein the outer filter module comprises: two or more unit filter modules arranged separately along the outer surface of the inner filter module for filtering the second substance; a unit coupling module detachably connecting two adjacent unit filter modules; and a unit sealing member sealing the space between two adjacent unit filter modules.

[0010] The chemical filter assembly according to the present invention further includes a sealing cover that seals or closes one of the two ends of the hollow hole portion corresponding to the longitudinal direction of the internal filter module.

[0011] Here, the internal filter module comprises: a ring-shaped first internal cap; a ring-shaped second internal cap spaced apart to face the first internal cap; an internal filter member that filters the first substance, wherein the inner outer groove and the inner inner groove are alternately arranged to form a hollow tube shape as internal folds are formed; and an internal coupling member that connects the first internal cap and the second internal cap to each of the two ends of the internal filter member, corresponding to the longitudinal direction of the internal filter member.

[0012] Herein, the internal filter module further includes an internal spacing member that is provided between the first internal cap and the second internal cap in correspondence with the longitudinal direction of the internal filter member and is coupled to the internal filter member so as to maintain the shape of the inner outer groove and the inner inner groove.

[0013] At this time, the internal filter module further includes an internal support cover that surrounds at least one of the inner surface of the internal filter member and the outer surface of the internal filter member in a tubular shape, and has both ends coupled to the first internal cap and the second internal cap in correspondence with the longitudinal direction of the internal filter member; and a plurality of internal ventilation holes are formed through the internal support cover in a spaced-apart manner.

[0014] Here, the unit filter module comprises: a first outer cap in the shape of an arc that encloses a portion of the first inner cap; a second outer cap in the shape of an arc that is spaced apart from the first outer cap and encloses a portion of the second inner cap; a side finishing member that connects both ends of the first outer cap and both ends of the second outer cap in correspondence with the circumferential direction of the first inner cap or the circumferential direction of the second inner cap; an outer filter member that filters the second substance, wherein an outer outer groove and an inner outer groove are alternately arranged as an outer fold is formed; and an external coupling member that connects the first outer cap and the second outer cap to each end of the outer filter member in correspondence with the length direction of the outer filter member, and connects the side finishing member to each end of the outer filter member in correspondence with the circumferential direction of the first inner cap or the circumferential direction of the second inner cap.

[0015] Herein, the unit filter module further includes an external spacing member that is provided between the first outer cap and the second outer cap in correspondence with the longitudinal direction of the external filter member and is coupled to the external filter member so as to maintain the shape of the outer outer groove and the outer inner groove.

[0016] At this time, the unit filter module further includes an external support cover that surrounds at least one of the inner surface of the external filter member and the outer surface of the external filter member, and whose edge is coupled to the first external cap, the second external cap, and the side finishing member; and a plurality of external ventilation holes are formed through the external support cover in a spaced-apart manner.

[0017] Here, the side finishing member comprises: a side channel to which both ends of the external filter member are connected in correspondence with the circumferential direction of the first inner cap or the circumferential direction of the second inner cap; and a connecting angle provided at both ends of the side channel in correspondence with the longitudinal direction of the external filter member, wherein the first external cap is connected to the second external cap.

[0018] Here, if one of two mutually adjacent unit filter modules is referred to as the first module and the other of the two mutually adjacent unit filter modules is referred to as the second module, the unit coupling module comprises a clamping module that detachably connects the first module and the second module; the clamping module comprises a clamping hook coupled to the first module; and a clamping member coupled to the second module and detachably engaged with the clamping hook; wherein the clamping member comprises a clamping shaft portion coupled to the second module; a pivot block rotatably coupled to the clamping shaft portion; and a clamping hook projection portion rotatably coupled to the pivot block and detachably engaged with the clamping hook.

[0019] Here, if one of two mutually adjacent unit filter modules is referred to as the first module and the other of the two mutually adjacent unit filter modules is referred to as the second module, the unit coupling module comprises a detachable clip module that detachably combines the first module and the second module; the detachable clip module comprises a detachable hole portion provided in each of the first module and the second module; and an elastic clip that has elasticity and is detachably fitted and coupled to two mutually adjacent detachable holes; the elastic clip comprises a clip body; a pair of elastic wings that are bent and formed at both ends of the clip body to face each other and are detachably fitted and coupled to two mutually adjacent detachable holes; and a detachable guide that is bent and formed at the end of the elastic wing and guides the end of the elastic wing to the detachable hole portion; and the spacing between the pair of elastic wings becomes narrower as it extends from the clip body to the end of the elastic wing.

[0020] Here, if one of two mutually adjacent unit filter modules is referred to as the first module and the other of the two mutually adjacent unit filter modules is referred to as the second module, the unit coupling module comprises a detachable hook module that detachably connects the first module and the second module; and the detachable hook module comprises a detachable catch member formed protruding from the first module toward the second module and having a detachable catch hook at its end; and a detachable hook member formed protruding from the second module toward the first module and having a detachable catch projection at its end that is detachably engaged with the detachable catch hook. Effects of the invention

[0021] According to the chemical filter assembly of the present invention, the lifespan of the filter module is extended, the filter differential pressure is reduced, and maintenance can be simplified by allowing the individual replacement of problematic filter modules. In addition, the sealing state between the inner filter module and the outer filter module can be stably maintained through the coupling relationship of the module sealing members.

[0022] In addition, the present invention can restrict the movement path of a chemical containing a first substance and a second substance into a hollow hole through a sealing cover and improve the filtering effect of the chemical.

[0023] Furthermore, the present invention prevents leakage of the first substance from the internal filter module through the coupling relationship of the internal filter module, and enables the internal filter member to stably filter the first substance. Additionally, it can suppress or prevent deformation of the internal filter module caused by external force.

[0024] In addition, the present invention can stably maintain the internal folds of the internal filter member through the coupling relationship of the internal spacing member, improve the filtering effect of the internal filter member, and minimize the expansion or contraction of the internal filter member during the filtering process.

[0025] In addition, the present invention can protect the internal filter member from external forces and facilitate the movement of chemicals through the coupling relationship of the internal support cover.

[0026] Furthermore, the present invention prevents leakage of a second substance from a unit filter module through the coupling relationship of the unit filter module, and enables an external filter member to stably filter the second substance. Additionally, it can suppress or prevent deformation of the unit filter module caused by external forces. Moreover, it can stably maintain an airtight state between two mutually adjacent unit filter modules through the coupling relationship of the unit sealing member.

[0027] In addition, the present invention can stably maintain the external folds of the external filter member through the coupling relationship of the external spacing member, improve the filtering effect of the external filter member, and minimize the expansion or contraction of the external filter member during the filtering process.

[0028] In addition, the present invention can prevent leakage of a second material from the unit filter module through the connection relationship of the side finishing member, and improve the adhesion of the external support cover by flattening the outer and inner surfaces of the unit filter module.

[0029] In addition, the present invention can stably attach two mutually adjacent unit filter modules to a unit sealing member through the detailed coupling relationship of the unit coupling module, and attach an internal filter module and an external filter module to a module sealing member.

[0030] In addition, the present invention allows for easy close coupling and separation between the internal filter module and the unit filter module through the detailed coupling relationship of the unit coupling module.

[0031] In addition, the present invention allows only the filter element to be replaced in the filter module, thereby reducing maintenance costs. Brief explanation of the drawing

[0032] FIG. 1 is an exploded view illustrating the planar state of a chemical filter assembly according to one embodiment of the present invention. FIG. 2 is an exploded view showing the front view of a chemical filter assembly according to one embodiment of the present invention. Figure 3 is a drawing showing the cross-sectional state along the line AA' of Figure 1. Figure 4 is a drawing showing the cross-sectional state along the BB' line of Figure 3. Figure 5 is a drawing showing the cross-sectional state along the CC' line of Figure 1. Figure 6 is an exploded view showing the cross-sectional state along the DD' line of Figure 1. FIG. 7 is a drawing showing the first cross-sectional state along the EE' line of FIG. 2, (a) showing the state where the clamping hook and the clamping member are separated, and (b) showing the state where the clamping hook and the clamping member are combined. FIG. 8 is a drawing showing the second cross-sectional state along the EE' line of FIG. 2, (a) showing the state where the external filter module and the elastic clip are separated, and (b) showing the state where the external filter module and the elastic clip are combined. FIG. 9 is a drawing showing the third cross-sectional state along the EE' line of FIG. 2, (a) showing the state where the detachable hook and the detachable hook member are separated, and (b) showing the state where the detachable hook and the detachable hook member are combined. Specific details for implementing the invention

[0033] Hereinafter, an embodiment of a chemical filter assembly according to the present invention will be described with reference to the attached drawings. At this time, the present invention is not limited or restricted by the embodiments. Furthermore, in describing the present invention, specific descriptions of known functions or configurations may be omitted to clarify the gist of the present invention.

[0034] Referring to FIGS. 1 to 9, a chemical filter assembly according to one embodiment of the present invention may include an internal filter module (1), an external filter module (2), and a module sealing member (4). In one embodiment of the present invention, the chemical is a fluid containing at least one of a first substance and a second substance.

[0035] The internal filter module (1) has a hollow hole portion (10) formed through it and has a hollow tube shape. In one embodiment of the present invention, the internal filter module (1) has a cylindrical shape, but is not limited thereto and can have various hollow tube shapes. The internal filter module (1) filters a first substance among chemical contaminants. The first substance may include at least one of acidic gases (NOx, SOx, HCl, HF, organic acids, etc.) and basic gases (NH3, amines, etc.).

[0036] As shown in FIGS. 3 and 4, the internal filter module (1) may include a ring-shaped first internal cap (11), a ring-shaped second internal cap (12) spaced apart to face the first internal cap (11), an internal filter member (13) having an internal outer groove (13a) and an internal inner groove (13b) alternately arranged to form an internal fold to form a hollow tube shape, and an internal coupling member (15) that connects the first internal cap (11) and the second internal cap (12) to each end of the internal filter member (13) in correspondence with the longitudinal direction of the internal filter member (13).

[0037] It is preferable that the first inner cap (11) has a "C" shaped cross-section to wrap around one end of the inner filter member (13) in correspondence with the length direction of the inner filter member (13).

[0038] It is preferable that the second inner cap (12) has a "C" shaped cross-section to wrap around the other end of the inner filter member (13) in correspondence with the length direction of the inner filter member (13).

[0039] The internal filter member (13) filters the first substance from the chemical. Although the filter differential pressure of the filter media disclosed in the prior art literature is 2.81 mmAq to 2.85 mmAq, it was confirmed that according to one embodiment of the present invention, when the chemical passes only through the internal filter member (13), the filter differential pressure is 1.45 mmAq to 1.49 mmAq.

[0040] The internal coupling member (15) can connect a first internal cap (11) and a second internal cap (12) to each end of the internal filter member (13) in correspondence with the longitudinal direction of the internal filter member (13) through various known forms.

[0041] As shown in FIG. 3, the internal filter module (1) may further include an internal spacing member (14) that is provided between the first internal cap (11) and the second internal cap (12) in correspondence with the longitudinal direction of the internal filter member (13) and is coupled to the internal filter member (13) so as to maintain the shape of the inner outer groove (13a) and the inner inner groove (13b). The internal spacing member (14) may be hot-melt applied to stably maintain the internal fold shape of the internal filter member (13).

[0042] As shown in FIGS. 3 and 4, the internal filter module (1) may further include an internal support cover (3) that surrounds at least one of the inner surface and the outer surface of the internal filter member (13) and has both ends coupled to the first internal cap (11) and the second internal cap (12) in the longitudinal direction of the internal filter member (13). The internal support cover (3) may have a tubular shape or a shape in which a plurality of panels are combined. A plurality of internal ventilation holes (31) are formed through the internal support cover (3) in a spaced-apart manner. Chemicals containing at least one of the first substance and the second substance can freely pass through the internal ventilation holes (31).

[0043] Although not shown, the internal filter module (1) may further include an internal edge band that is coupled to the first internal cap (11) and the second internal cap (12) respectively via an internal coupling member (15) to stabilize the maintenance of the spacing of the internal folds.

[0044] The external filter module (2) surrounds the outer surface of the internal filter module (1). The external filter module (2) can be positioned parallel to the outer surface of the internal filter module (1) to improve airtightness. The external filter module (2) filters a second substance among chemical contaminants. The second substance may include at least one of organic sulfur compounds and volatile organic compounds (VOCs).

[0045] The external filter module (2) may include two or more unit filter modules (21) that are mutually separated and arranged along the outer surface of the internal filter module (1) for filtering a second substance, a unit coupling module (22) that detachably combines two mutually adjacent unit filter modules (21), and a unit sealing member (23) that seals between two mutually adjacent unit filter modules (21).

[0046] In one embodiment of the present invention, the unit filter module (21) is divided into two and is described as having a plate shape with an arc-shaped cross-section or a semicircular cross-section corresponding to the inner filter module (1), but it is not limited thereto and it is obvious that it can be divided into three or more.

[0047] As shown in FIGS. 5 and 6, the unit filter module (21) comprises a first outer cap (211) in the shape of an arc that encloses a part of the first inner cap (11), a second outer cap (212) in the shape of an arc that is spaced apart from the first outer cap (211) and encloses a part of the second inner cap (12), a side finishing member (216) that connects both ends of the first outer cap (211) and both ends of the second outer cap (212) in correspondence with the circumferential direction of the first inner cap (11) or the circumferential direction of the second inner cap (12), an outer filter member (213) in which an outer outer groove (213a) and an inner outer groove (13a) are alternately arranged as the outer fold is formed, and each at both ends of the outer filter member (213) in correspondence with the length direction of the outer filter member (213). It may include an external coupling member (215) that combines the first outer cap (211) and the second outer cap (212), while also combining side finishing members (216) at each end of the external filter member (213) in correspondence with the circumferential direction of the first inner cap (11) or the circumferential direction of the second inner cap (12).

[0048] It is preferable that the first outer cap (211) has a "C" shaped cross-section to wrap around one end of the outer filter member (213) in correspondence with the length direction of the outer filter member (213).

[0049] It is preferable that the second outer cap (212) has a "C" shaped cross-section to wrap around the other end of the outer filter member (213) in correspondence with the length direction of the outer filter member (213).

[0050] The side finishing member (216) may include a side channel (2161) to which both ends of the external filter member (213) are connected in correspondence with the circumferential direction of the first inner cap (11) or the circumferential direction of the second inner cap (12), and a connecting angle (2162) provided at both ends of the side channel (2161) in correspondence with the length direction of the external filter member (213) to which the first outer cap (211) is connected to the second outer cap (212). It is preferable that the side channel (2161) has a "C"-shaped cross-section to wrap around the ends of the external filter member (213) in correspondence with the circumferential direction of the first inner cap (11) or the circumferential direction of the second inner cap (12). Since the connecting angle (2162) is inserted into the first outer cap (211) and the second outer cap (212) which have a "U" shaped cross-section, it prevents a step from occurring between the wing portion of the first outer cap (211), the wing portion of the second outer cap (212), and the wing portion of the side channel (2161), facilitates the connection of the external support cover (24), and prevents chemical leakage from the unit filter module (21).

[0051] The external filter member (213) filters the second substance from the chemical. Although the filter differential pressure of the filter media disclosed in the prior art literature is 2.81 mmAq to 2.85 mmAq, it was confirmed that when the chemical passes through the mutually separated internal filter member (13) and external filter member (213) according to one embodiment of the present invention, the filter differential pressure is 2.70 mmAq to 2.74 mmAq.

[0052] The external coupling member (215) may, through various known forms, combine a first outer cap (211) and a second outer cap (212) at each end of the external filter member (213) in correspondence with the longitudinal direction of the external filter member (213), while combining side finishing members (216) at each end of the external filter member (213) in correspondence with the circumferential direction of the first inner cap (11) or the circumferential direction of the second inner cap (12).

[0053] As shown in FIG. 5, the unit filter module (21) may further include an external spacing member (214) that is provided between the first outer cap (211) and the second outer cap (212) in correspondence with the longitudinal direction of the external filter member (213) and is coupled to the external filter member (213) so as to maintain the shape of the outer outer groove (213a) and the outer inner groove (213b). The external spacing member (214) may be hot-melt applied to stably maintain the shape of the outer fold of the external filter member (213).

[0054] As shown in FIG. 5, the unit filter module (21) may further include an external support cover (24) that surrounds at least one of the inner surface of the external filter member (213) and the outer surface of the external filter member (213), and whose edges are connected to the first external cap (211), the second external cap (212), and the side finishing member (216). The external support cover (24) may have a flat cross-section in the shape of an arc or a semicircle. A plurality of external ventilation holes (241) are formed through the external support cover (24) in a spaced-apart manner. Chemicals containing at least one of the first substance and the second substance can freely pass through the external ventilation holes (241).

[0055] Although not shown, the unit filter module (21) may further include an outer edge band that is coupled to the first outer cap (211) and the second outer cap (212), respectively, via an external coupling member (215), thereby stabilizing the maintenance of the spacing of the outer folds.

[0056] The module sealing member (4) seals the space between the inner filter module (1) and the outer filter module (2) as shown in FIGS. 1 and 2. The module sealing member (4) has elasticity and can contract and return to its original state by an external force. The module sealing member (4) may be coupled to the outer surface of the first inner cap (11) and the outer surface of the second inner cap (12), or to the inner surface of the first outer cap (211) and the inner surface of the second outer cap (212), and the first inner cap (11) and the second inner cap (12) may be fitted and coupled to the module sealing member (4).

[0057] A chemical filter assembly according to one embodiment of the present invention may further include a sealing cover (5). As shown in FIGS. 1 and 2, the sealing cover (5) seals or closes one of the two ends of the hollow hole portion (10) corresponding to the longitudinal direction of the internal filter module (1). It is advantageous for the sealing cover (5) to be coupled to the first inner cap (11) of at least the internal filter module (1) among the internal filter module (1) and the external filter module (2). The sealing cover (5) can cover at least the module sealing member (4) among the module sealing member (4) and the external filter module (2) to stabilize the close contact state between the internal filter module (1), the module sealing member (4), and the external filter module (2).

[0058] As the unit filter module (21) is divided into two, in one embodiment of the present invention, the unit coupling module (22) can be divided into a first coupling module and a second coupling module.

[0059] If one of the two mutually adjacent unit filter modules (21) is referred to as the first module (2a) and the other of the two mutually adjacent unit filter modules (21) is referred to as the second module (2b), the first coupling module can detachably connect one side of the mutually adjacent first module (2a) and one side of the second module (2b), and the second coupling module can detachably connect the other side of the mutually adjacent first module (2a) and the other side of the second module (2b).

[0060] Then, the unit coupling module (22) may include at least one of a clamping module (20a), a detachable clip module (22b), and a detachable hook module (22c), in order to detachably combine the first module (2a) and the second module (2b).

[0061] The clamping module (20a) may include a clamping hook (a1) coupled to the first module (2a) and a clamping member (a2) coupled to the second module (2b) and detachably hooked to the clamping hook (a1). At this time, the clamping member (a2) may include a clamping shaft portion (a21) coupled to the second module (2b), a pivot block (a22) rotatably coupled to the clamping shaft portion (a21), and a clamping hook projection portion (a23) rotatably coupled to the pivot block (a22) and detachably hooked to the clamping hook (a1). The pivot block (a22) is provided with a handle to facilitate the rotation of the pivot block (a22). In particular, a support band (217) can be attached to the outer surface of the first module (2a) and the outer surface of the second module (2b), respectively. Then, a clamping hook (a1) is attached to the support band (217) attached to the first module (2a), and a clamping shaft portion (a21) is attached to the support band (217) attached to the second module (2b), so that the unit filter module (21) can be prevented from being deformed according to the operation of the clamping module (20a).

[0062] Looking at the operation of the clamping module (20a), as shown in FIG. 7 (a), the first module (2a) and the second module (2b) are placed adjacent to each other, and then when the rotating block (a22) is rotated while the clamping catch protrusion (a23) is engaged with the clamping catch hook (a1), the first module (2a) is pulled relative to the second module (2b) as shown in FIG. 7 (b). Accordingly, the unit sealing member (23) is in close contact with the first module (2a) and the second module (2b), and the module sealing member (4) is in close contact with the inner filter module (1) and the outer filter module (2), thereby completing a chemical filter assembly according to one embodiment of the present invention.

[0063] The detachable clip module (22b) may include a detachable hole portion (b1) provided in each of the first module (2a) and the second module (2b), and an elastic clip (b2) that has elasticity and is detachably fitted to two mutually adjacent detachable hole portions (b1). At this time, the detachable hole portion (b1) may be formed through the wing portion of the side channel (2161) in the side finishing member (216) as shown in FIG. 8. Additionally, the detachable hole portion (b1) may be additionally formed through the outer support cover (24) as shown in FIG. 8. Additionally, the elastic clip (b2) may include a clip body (b21), a pair of elastic wings (b22) that are bent and formed at both ends of the clip body (b21) so as to face each other and are detachably fitted into two adjacent detachable holes (b1), and a detachable guide (b23) that is bent and formed at the ends of the elastic wings (b22) and guides the ends of the elastic wings (b22) to the detachable holes (b1). Here, the spacing between the pair of elastic wings (b22) is made to narrow from the clip body (b21) toward the ends of the elastic wings (b22) so that elasticity is imparted when the elastic clip (b2) opens.

[0064] Looking at the operation of the detachable clip module (22b), as shown in FIG. 8 (a), the first module (2a) and the second module (2b) are placed adjacent to each other, and then a pair of elastic wings (b22) are fitted into the detachable hole portion (b1). At this time, as shown in FIG. 8 (b), the ends of the elastic wings (b22) are stably inserted into the detachable hole portion (b1) by means of an elastic guide. Accordingly, the pair of elastic wings (b22) spread out from the elastic clip (b2), and elasticity acts on the elastic clip (b2), so that the unit sealing member (23) is in close contact with the first module (2a) and the second module (2b), and the module sealing member (4) is in close contact with the inner filter module (1) and the outer filter module (2), thereby completing the chemical filter assembly according to one embodiment of the present invention.

[0065] The detachable hook module (22c) may include a detachable hook member (c1) formed protruding from the first module (2a) toward the second module (2b) and having a detachable hook ring (c11) at its end, and a detachable hook member (c2) formed protruding from the second module (2b) toward the first module (2a) and having a detachable hook projection (c21) at its end that is detachably hooked to the detachable hook ring (c11).

[0066] Looking at the operation of the detachable hook module (22c), the first module (2a) and the second module (2b) are placed adjacently as shown in FIG. 9 (a), and then the detachable hook protrusion (c21) of the detachable hook member (c2) is engaged with the detachable hook ring (c11) of the detachable hook member (c1) as shown in FIG. 9 (b). Accordingly, the unit sealing member (23) is in close contact with the first module (2a) and the second module (2b), and the module sealing member (4) is in close contact with the inner filter module (1) and the outer filter module (2), thereby completing a chemical filter assembly according to one embodiment of the present invention.

[0067] Then, according to the first example, the first coupling member (221) and the second coupling member (222) may each be configured as a clamping module (20a). Additionally, according to the second example, the first coupling member (221) and the second coupling member (222) may each be configured as a detachable clip module (22b). Additionally, according to the third example, the first coupling member (221) and the second coupling member (222) may each be configured as a detachable hook module (22c). Furthermore, according to the fourth example, the first coupling member (221) may be configured as either a clamping module (20a) or a detachable clip module (22b), and the second coupling member (222) may be configured as a detachable hook module (22c).

[0068] According to the chemical filter assembly described above, the lifespan of the filter module is extended, the filter differential pressure is reduced, and maintenance can be simplified by allowing the individual replacement of the problematic filter module. In addition, the seal between the inner filter module (1) and the outer filter module (2) can be stably maintained through the coupling relationship of the module sealing member (4).

[0069] In addition, the path of the chemical containing the first and second substances to the hollow hole portion (10) can be restricted through the end cover (5), and the filtering effect of the chemical can be improved.

[0070] In addition, through the coupling relationship of the internal filter module (1), leakage of the first substance from the internal filter module (1) can be prevented, and the internal filter member (13) can stably filter the first substance. In addition, deformation of the internal filter module (1) caused by external force can be suppressed or prevented.

[0071] In addition, through the connection relationship of the internal spacing member (14), the internal folds of the internal filter member (13) can be stably maintained, the filtering effect of the internal filter member (13) can be improved, and the expansion or contraction of the internal filter member (13) during the filtering process can be minimized.

[0072] In addition, through the connection of the internal support cover (3), the internal filter member (13) can be protected from external forces and the movement of chemicals can be facilitated.

[0073] In addition, through the coupling relationship of the unit filter module (21), leakage of the second substance from the unit filter module (21) can be prevented, and the external filter member (213) can stably filter the second substance. In addition, deformation of the unit filter module (21) caused by external force can be suppressed or prevented. Furthermore, through the coupling relationship of the unit sealing member (23), the airtight state between two mutually adjacent unit filter modules (21) can be stably maintained.

[0074] In addition, through the connection relationship of the external gap member (214), the external folds of the external filter member (213) can be stably maintained, the filtering effect of the external filter member (213) can be improved, and the expansion or contraction of the external filter member (213) during the filtering process can be minimized.

[0075] In addition, through the connection of the side finishing member (216), leakage of the second material from the unit filter module (21) can be prevented, and the outer and inner surfaces of the unit filter module (21) can be flattened to improve the adhesion of the outer support cover (24).

[0076] In addition, through the detailed coupling relationship of the unit coupling module (22), two mutually adjacent unit filter modules (21) can be stably attached to the unit sealing member (23), and the inner filter module (1) and the outer filter module (2) can be attached to the module sealing member (4).

[0077] In addition, through the detailed coupling relationship of the unit coupling module (22), close coupling and separation between the internal filter module (1) and the unit filter module (21) can be easily achieved.

[0078] In addition, only the filter component in the filter module can be replaced, and maintenance costs can be reduced.

[0079] As described above, preferred embodiments of the present invention have been explained with reference to the drawings; however, a person skilled in the art may make various modifications or changes to the present invention without departing from the spirit and scope of the invention as described in the following claims. Explanation of the symbols

[0080] 1: Internal filter module 10: Hollow hole section 11: First internal cap 12: Second inner cap 13: Inner filter member 13a: Inner and outer groove 13b: Internal medial bone 14: Internal spacer 15: Internal connecting member 2: External filter module 21: Unit filter module 2a: First module 2b: 2nd module 211: 1st outer cap 212: 2nd outer cap 213: External filter member 213a: External lateral bone 213b: External medial bone 214: External spacing member 215: External joining member 216: Side finishing member 2161: Side Channel 2162: Connecting Angle 217: Support Band 22: Unit coupling module 221: First coupling member 222: Second coupling member 20a: Clamping module a1: Clamping hook a2: Clamping member a21: Clamping shaft part a22: Rotating block a23: Clamping locking projection part 22b: Detachable clip module b1: Detachable hole b2: Elastic clip b21: Clip body b22: Elastic wing b23: Detachment guide 22c: Detachable hook module c1: Detachable catch member c11: Detachable catch hook c2: Detachable hook member c21: Detachable catch projection 23: Unit sealing member 24: External support cover 241: External ventilation hole 3: Internal support cover 31: Internal ventilation hole 4: Module airtight member 5: Finishing cover

Claims

Claim 1 The apparatus comprises: an internal filter module in the shape of a tube with a hollow hole formed through it to filter a first substance; an external filter module surrounding the outer surface of the internal filter module to filter a second substance; and a module sealing member that seals the space between the internal filter module and the external filter module; wherein the external filter module comprises: two or more unit filter modules arranged separately along the outer surface of the internal filter module for filtering the second substance; a unit coupling module that detachably connects two mutually adjacent unit filter modules; and a unit sealing member that seals the space between two mutually adjacent unit filter modules; and wherein the internal filter module comprises: a ring-shaped first internal cap; a ring-shaped second internal cap spaced apart to face the first internal cap; and an internal filter member that filters the first substance, wherein an inner outer groove and an inner inner groove are alternately arranged to form a hollow tube shape as an internal fold is formed. A chemical filter assembly characterized by including: an internal coupling member that connects the first internal cap and the second internal cap to each of the two ends of the internal filter member, corresponding to the longitudinal direction of the internal filter member. Claim 2 delete Claim 3 A chemical filter assembly according to claim 1, wherein the internal filter module further comprises an internal spacing member that is provided between the first internal cap and the second internal cap in correspondence with the longitudinal direction of the internal filter member and is coupled to the internal filter member so as to maintain the shape of the inner outer groove and the inner inner groove. Claim 4 In claim 1, the unit filter module comprises: a first outer cap in the shape of an arc that encloses a portion of the first inner cap; a second outer cap in the shape of an arc that is spaced apart from and faces the first outer cap and encloses a portion of the second inner cap; a side finishing member that connects both ends of the first outer cap and both ends of the second outer cap in correspondence with the circumferential direction of the first inner cap or the circumferential direction of the second inner cap; and an outer filter member that filters the second substance, wherein an outer outer groove and an outer inner groove are alternately arranged as an outer fold is formed. A chemical filter assembly characterized by comprising: an external coupling member that combines the first outer cap and the second outer cap at each end of the external filter member corresponding to the longitudinal direction of the external filter member, and combines the side finishing member at each end of the external filter member corresponding to the circumferential direction of the first inner cap or the circumferential direction of the second inner cap. Claim 5 A chemical filter assembly according to claim 4, wherein the unit filter module further comprises an external spacing member that is provided between the first outer cap and the second outer cap in correspondence with the longitudinal direction of the external filter member and is coupled to the external filter member so as to maintain the shape of the outer outer groove and the outer inner groove. Claim 6 A chemical filter assembly according to claim 4, wherein the side finishing member comprises: a side channel to which both ends of the external filter member are joined in correspondence with the circumferential direction of the first inner cap or the circumferential direction of the second inner cap; and a joining angle provided at both ends of the side channel in correspondence with the longitudinal direction of the external filter member, wherein the first external cap is joined to the second external cap.

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