JP6120238B1 - Upper housing space separation structure of filter element container, and filter element container and filter provided with the separation structure - Google Patents

Abstract

[PROBLEMS] To further reduce the size and weight by reducing the number of components, and to reduce the cost while improving the assembly accuracy by reducing the number of components. SOLUTION: A cylindrical outer cylinder 100, a fluid inlet 110 and an outlet 120 provided so as to penetrate a side surface of the outer cylinder 100, a center O of a top surface 102 of the outer cylinder 100, and In order to separate the space including the inflow port 110 from the other space (the space including the outflow port 120), it is integrally formed in a shape that continuously contacts from the inner peripheral top surface 102 to the side surface 104 of the outer cylinder 100. In addition, a separator 130 having an opening 134 for sending fluid to the filter element 30 on the bottom surface side is provided. [Selection] Figure 4

Description

  The present invention relates to the technical field of a filter element container that houses a filter element that is disposed in the middle of a pipe and filters a fluid (gas, liquid) that flows through the pipe.

  Conventionally, various proposals have been made for a filter element container and a filter that are arranged in the middle of a pipe and store a filter element for filtering a fluid (gas, liquid) flowing through the pipe.

  For example, in Patent Document 1, the upper housing 3 (the reference numerals in this paragraph are used in Reference Document 1) to provide a filter that has a simple configuration, can be reduced in size, has little pressure loss, and can be easily replaced. The cylindrical connecting pipe 20 and the cylindrical filter element 11 are coaxially connected and arranged inside the housing 2 that can be divided into the lower housing 4. Since the element 11 can be fixed by the upper and lower housings by being sandwiched and fixed between the upper and lower housings, the tension bolt can be eliminated, the configuration can be simplified and the element can be easily replaced. . Furthermore, since the load of the connecting pipe 20 is also reduced, a shape with little pressure loss can be adopted, and the pressure loss generated in the filter can be reduced.

  Further, in Patent Document 2, an outer cylinder is provided to provide a double container (corresponding to the upper housing in the present invention) that is small in size, has a small pressure loss, is durable, and can be manufactured at low cost. The upper housing 3 (the reference in this paragraph uses the reference used in the cited document 2 as it is) is provided with a step portion 31 as an engaging portion on the upper end wall 3a, which is an inner cylinder. The upper end 21 of the connecting pipe 20 is contacted for positioning. Further, an inflow nozzle 5 serving as a connecting pipe is provided so as to penetrate the upper housing 3 and the connecting pipe 20. Since the positions are automatically determined when these are assembled, it is said that a small and highly durable double container 30 can be manufactured at low cost when placed in a brazing furnace and brazed.

JP-A-11-169630 JP 2000-33448 A

  However, although the upper housing described in Patent Document 1 and Patent Document 2 has a simple structure compared to the previous technology, in order to separate the inflow space and the outflow space in the upper housing, Since the inner cylinder is provided in the outer cylinder (so-called double cylinder structure) and the inflow port penetrates not only to the outer cylinder but also to the middle cylinder, the number of parts is still large, and the number of man-hours for manufacturing is also the part. The situation was unavoidably large due to the large number of points.

  Therefore, the present invention has been made to solve such problems, and further reducing the number of parts to further reduce the size and weight, and improving the assembly accuracy by reducing the number of parts. It is an object of the present invention to provide an upper housing space separation structure of a filter element container that can realize cost reduction while achieving the above, and a filter element container and a filter including the separation structure.

  In order to solve the above problems, the present invention is to fix a filter element so that it is sandwiched from above and below by an upper housing and a lower housing in a cylindrical filter element container that can be divided into an upper housing and a lower housing. A space separation structure for separating a fluid inflow space and an outflow space of the upper housing in a storable filter container, and is provided so as to pass through a cylindrical outer cylinder and a side surface of the outer cylinder. In order to separate the fluid inlet and outlet, the center of the top surface of the outer cylinder and the space including the inlet, and the space including the outlet in the outer cylinder, It is integrally formed with a shape that continuously contacts from the inner peripheral top surface to the inner peripheral side surface of the outer cylinder, and an opening for sending the fluid to the filter element is formed on the bottom surface. Characterized in that and a separator having a.

  By adopting such a configuration, there is no need to adopt a complicated configuration such as arranging a double cylinder of an outer cylinder and an inner cylinder and extending the inlet to the inner cylinder, as in the past, The fluid inflow space and the outflow space in the upper housing can be separated by simply disposing the separator having the above-described configuration in the outer cylinder. In addition, since the separator in the present invention is also in contact with the top surface side, the reaction force received from the filter element sandwiched between the lower housing can be received by the top surface of the upper housing, so the thickness of the separator itself Even when it is made thin, sufficient strength can be ensured.

  In addition, the separator includes a flange over the entire circumference of the portion in contact with the inner peripheral surface of the outer cylinder, and the flange is formed by being squeezed integrally when the separator is formed by squeezing. Is desirable.

  Thus, by integrally forming the flange of the separator by squeezing, a flange with high assembling accuracy can be easily formed with respect to the shape of the inner peripheral surface of the outer cylinder. In addition, since the separator itself is formed by squeezing, it is not necessary to join the separator body and the flange separately by welding or the like, and fluid leakage from the joining portion can be prevented beforehand.

  Further, it is desirable that at least the top surface and the side surface of the outer cylinder are integrally formed by squeezing, and the inner peripheral surface of the outer cylinder from the top surface to the side surface is formed without a step.

  With this configuration, it is not necessary to join the member constituting the side surface of the outer cylinder and the member constituting the top surface by welding or the like, so that in addition to reducing the number of parts, fluid leakage from the joint portion is also obviated. Can be prevented. Further, since there is no need to provide a step on the top surface for positioning the inner cylinder, it is possible to configure a simpler, smaller and lighter configuration.

  The bottom surface of the separator may be formed in an arch shape so as to protrude downward.

  If comprised in this way, when the filter element is clamped by the upper housing and the lower housing, the rigidity of the separator against the reaction force received from the filter element can be structurally ensured, so that the thickness of the separator can be made thinner. In addition to being able to achieve light weight and compactness, it is possible to secure a larger internal flow rate even with an outer cylinder of the same size.

  An inflow pipe for guiding a fluid is connected and fixed to the inflow port, and the separator surrounds the inflow port without contacting the connection pipe on the inner peripheral surface of the outer cylinder. It is desirable to be connected.

  With this configuration, it is possible to prevent reaction force received from the filter element when the filter element is sandwiched between the upper housing and the lower housing from being applied to the inflow port (inflow pipe) via the separator. In other words, it is possible to fundamentally eliminate problems such as backlash of the inflow pipe due to repeated use and cracks in the joint portion of the inflow pipe.

  From a different point of view, the present invention can also be regarded as a filter element container having an upper housing space separation structure for any one of the above filter element containers, and further a filter.

  By applying the present invention, the number of parts can be further reduced to further reduce the size and weight, and the number of parts can be reduced to reduce the cost while improving the assembling accuracy. .

It is the perspective view which looked at the upper housing of the filter element container shown as an example of embodiment of the present invention from the upper part. It is the perspective view which looked at the upper housing of the filter element container shown as an example of embodiment of the present invention from the lower part (bottom side) (flange omitted of an outer cylinder). It is a bottom view of the upper housing of a filter element container shown as an example of an embodiment of the present invention (flange omitted of an outer cylinder). It is a partial cross section schematic block diagram of the filter (a filter element and a filter element container are included) shown as an example of embodiment of this invention. It is the perspective view seen from one side of the separator single-piece | unit shown as an example of embodiment of this invention. It is the perspective view seen from the other side of the separator single-piece | unit shown as an example of embodiment of this invention.

  Hereinafter, the space separation structure of the upper housing 10 of the filter element container 2 which is an example of the embodiment of the present invention will be described with reference to the accompanying drawings. For easy understanding of the drawings, it should be noted that there are portions where the size and dimensions of each portion are exaggerated and there are portions that do not necessarily match the actual product. In addition, each drawing is viewed in the direction of the reference sign, and is expressed as upper, lower, left, right, near, and back based on the direction.

  The upper housing 10 of the filter element container 2 shown as an example of the embodiment of the present invention is paired with the lower housing 20 to constitute the filter element container 2 as shown in FIG. Further, a filter element 30 is inserted between the upper housing 10 and the lower housing 20 so as to be sandwiched from above and below, and is housed in a fixed manner. As a whole, a fluid (gas, liquid) disposed in the middle of the pipe and flowing in the pipe. ) Function as a filter 1 for filtering. Since the lower housing 20 and the filter element 30 themselves do not have characteristic portions according to the present invention, detailed description thereof will be omitted in this specification.

<Configuration of upper housing of filter element container>
As shown in FIG. 1, the upper housing 10 is formed in a substantially cylindrical shape having a top surface, and includes an inflow port (inflow pipe) 110 and an outflow port (outflow pipe) 120 at positions opposite to the side surfaces.

  Since the outer cylinder 100 is manufactured by squeezing one blank material, it is integrally formed from the top surface 102 to the side surface 104. Further, the skirt portion of the side surface 104 is widened to attach a band (not shown) for connecting to the lower housing 10, has a large diameter, and functions as a flange (outer cylinder) 106. 2 and 3, the flange (outer cylinder) 106 is omitted.

  The inflow port (inflow pipe) 110 and the outflow port (outflow pipe) 120 are both connected and fixed through the outer cylinder 100. The pipe material is welded and attached after punching out (piercing) both side surfaces of the squeezed outer cylinder 100.

  A separator 130 is attached and fixed inside the outer cylinder 100 by brazing. The separator 130 has a space including the position of the center O of the top surface 102 of the outer cylinder 100 and the inlet (inflow pipe) 110 and the other space (a space including the outlet (outflow pipe) 120) as the outer cylinder. A function of separating within 100 is provided. As shown in FIGS. 2 to 4, the outer cylinder 100 is configured to have a shape that continuously contacts and surrounds the inner peripheral side surface 104 of the outer cylinder as shown in FIGS. The An opening 132 for sending fluid to the filter element 30 is provided on the bottom side. Further, as clearly shown particularly in FIGS. 5 and 6, a flange (separator) 134 is formed over the entire circumference of the attachment surface of the separator 130 to the inner periphery of the outer cylinder.

  The separator 130 is also formed by squeezing one blank material, like the outer cylinder 100. In particular, the flange 134 provided over the entire circumference is also formed by squeezing out from the same blank material as the separator main body portion. Of course, in that process, an extra portion may be cut or a heat treatment may be performed if necessary. However, an important point is that the entire separator 134 including the flange (separator) 134 is completely removed. It is a point formed by squeezing from a blank material. As a result, the shape of the flange (separator) 134 joined to the outer cylinder 100 can be finished with high accuracy. The opening 132 is formed by punching (piercing). Further, depending on the shape of the filter element to be attached, an additional member (attachment) may be attached to the opening 132 for use.

<Operation and function of upper housing of filter element container>
As described above, the upper housing 10 shown as an example of the embodiment of the present invention is provided so as to pass through the outer cylinder 100 having a heaven (having the top surface 102) and the side surface 104 of the outer cylinder 100. The fluid inlet (inflow pipe) 110 and the outlet (outlet) 120 of the generated fluid, the space including the center O of the top surface 102 of the outer cylinder 100 and the inlet (inflow pipe) 110, and other spaces (flow) In order to separate the outlet (space including the outflow pipe) 120 in the outer cylinder 100, it is integrally formed in a shape that continuously contacts from the inner peripheral top surface 102 of the outer cylinder 100 to the inner peripheral side surface 104 of the outer cylinder 100. And a separator 130 provided with an opening 134 for sending a fluid to the filter element 30 on the bottom surface side, thereby arranging a double cylinder of an outer cylinder and an inner cylinder as in the prior art, and Flow There is no need to employ a complicated configuration in which the mouth extends to the inner cylinder, and it is possible to separate the fluid inflow space and the outflow space simply by placing a separator in the outer cylinder by brazing. It was. In addition, since the separator 130 in the present invention is also in contact with the top surface 102 side of the outer cylinder 100, the reaction force received from the filter element 30 sandwiched between the lower housing 20 and the outer housing 100 (of the outer cylinder 100). ) Since it can be efficiently received by the top surface 102, sufficient strength can be ensured even when the separator 130 itself is made thin. Furthermore, as the number of parts, only four points of the blank material for configuring the outer cylinder 100, two pipe materials for forming the inlet 110 and the outlet 120, and the blank material for forming the separator 130 are sufficient, Since the separator 130 itself is also formed without undergoing any welding process, the number of steps required to complete the entire upper housing 10 is small, and light weight and compactness can be realized.

  Moreover, the separator 130 is provided with a flange 134 over the entire circumference of the portion in contact with the inner peripheral surface (the top surface 102 and the side surface 104) of the outer cylinder 100, and this flange 134 is used when the separator 130 is formed by squeezing. As described above, the flange 134 of the separator 130 is integrally formed by squeezing, so that the flange 134 with high assembly accuracy can be easily formed with respect to the shape of the outer cylinder 100. it can. In addition, since the separator 130 itself is formed by squeezing, it is not necessary to join the separator main body and the flange 134 separately by welding or the like, and it is possible to prevent fluid leakage from the joining portion.

  In addition, at least the top surface 102 and the side surface 104 of the outer cylinder 100 are integrally formed by squeezing, and the inner peripheral surface of the outer cylinder 100 from the top surface 102 to the side surface 104 is formed without a step. By configuring in this way, it is not necessary to join the member constituting the side surface 104 of the outer cylinder 100 and the member constituting the top surface 102 by welding or the like, so that in addition to reducing the number of parts, Fluid leakage can also be prevented. Further, since there is no need to provide a step on the top surface 102 for positioning the inner cylinder as in the prior art, a simpler, smaller and lighter configuration can be achieved.

  Moreover, the bottom face of the separator was formed in the arch shape so that it might become convex toward the downward direction evidently from each drawing. With this configuration, it is possible to structurally ensure the rigidity of the separator 130 against the reaction force received from the filter element 30 when the filter element 30 is sandwiched between the upper housing 10 and the lower housing 20. In addition to being able to reduce the thickness and realizing a light and compact size, it is possible to secure a larger internal flow rate even with the outer cylinder 110 having the same size.

  In addition, a pipe material for guiding a fluid is connected and fixed to the inflow port (inflow pipe) 110. However, the separator 130 to which the present invention is applied does not contact the pipe material, and the inflow port It is joined to the outer cylinder 100 so as to surround the (inflow pipe) 110. With this configuration, reaction force received from the filter element 30 when the filter element 30 is sandwiched between the upper housing 10 and the lower housing 20 is prevented from being applied to the inlet (inflow pipe) 110 via the separator 130. it can. That is, it is possible to fundamentally eliminate problems such as backlash at the inlet (inflow pipe) 110 due to repeated use and cracks at the joint of the inlet (inflow pipe) 110.

<Other configuration examples>
In the above description, the upper housing and the lower housing are configured such that the housing is divided into upper and lower parts. It does not deviate.

  Further, even when the structure of the upper and lower housings is used in a state where it is turned upside down, it does not depart from the concept of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Filter 2 ... Filter element container 10 ... Upper housing 20 ... Lower housing 30 ... Filter element 100 ... Outer cylinder 102 ... Top surface (outer cylinder)
104 ... Side (outer cylinder)
106 ... Flange (outer cylinder)
110 ... Inlet (inflow pipe)
120 ... Outlet (outflow pipe)
130 ... Separator 132 ... Opening (Separator)
134 ... Flange (separator)
O ... top center

Claims (7)

Fluid in the upper housing in a filter container that can be stored by fixing the filter element so as to be sandwiched from above and below by the upper housing and the lower housing in a cylindrical filter element container that can be divided into two parts, an upper housing and a lower housing A space separation structure for separating the inflow space and the outflow space of
A cylindrical outer cylinder,
An inlet and an outlet of the fluid provided so as to penetrate the side surface of the outer cylinder;
In order to separate the space including the center of the top surface of the outer cylinder and the inlet and the space including the outlet in the outer cylinder, the inner circumference of the outer cylinder is separated from the inner peripheral top surface of the outer cylinder. An upper housing space of a filter element container, comprising: a separator that is integrally formed in a shape that continuously contacts a side surface and that has an opening on the bottom surface side for sending out the fluid to the filter element. Separation structure. In claim 1,
The separator is provided with a flange over the entire circumference of the portion in contact with the inner peripheral surface of the outer cylinder,
The said flange is formed by squeezing integrally when forming the said separator by squeezing. The upper housing space separation structure of the filter element container characterized by the above-mentioned. In claim 1 or 2,
An upper housing of a filter container, wherein at least a top surface and a side surface of the outer cylinder are integrally formed by squeezing, and an inner peripheral surface of the outer cylinder from the top surface to the side surface is formed without a step. Spatial separation structure. In any one of Claims 1-3,
An upper housing space separation structure for a filter element container, wherein the bottom surface of the separator is formed in an arch shape so as to protrude downward. In any one of Claims 1-4,
An inflow pipe for guiding fluid is connected and fixed to the inflow port,
An upper housing space separation structure for a filter element container, wherein the separator is joined to the inner peripheral surface of the outer cylinder so as to surround the inlet without contacting the inflow pipe.

  The filter element container provided with the upper housing space separation structure of the filter element container in any one of Claims 1-5.   The filter provided with the upper housing space separation structure of the filter element container in any one of Claims 1-5.

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