KR200350373Y1 - Manhole cover apparatus for a reactor - Google Patents

Abstract

Disclosed is a manhole cover device for a reaction tank provided in a reaction tank. In the reactor manhole cover device 100, the reaction tank 60 is formed with a close contact portion 22 having a circular cross section once the whole is rolled outward, and the manhole frame member 20 having the other end fixed to the reactor 60 is provided. It is provided. The manhole frame member 20 is provided with a cover member 30 coupled to one end by a hinge on one side of the outer circumference to open and close the upper portion. Inside the cover member 30, the packing member 40 is installed to accommodate the airtightness between the manhole frame member 20 and the cover member 30. The other side of the outer periphery of the manhole frame member 20 is provided with a locking member 50 to the manhole frame member 20, the cover member 30 is suspended / unlocked. According to the reactor manhole cover device configured as described above, between the manhole frame member and the cover member while reducing the number of locking members for locking / releasing the cover member to the manhole frame member by the packing member installed to be accommodated inside the cover member By maintaining the airtightness it is possible to prevent the leakage of toxic gas generated inside the reaction tank.

Description

Manhole cover apparatus for a reactor

The present invention relates to a manhole cover device for a reaction vessel, and more particularly, one end of the manhole frame member, the other end of which is fixed to the manhole formed in the reaction vessel, is rolled outward to have a circular cross section, and the manhole frame member is opened and closed. By installing the packing member to be accommodated inside the cover member to be suspended / released by the cover member, the manhole frame member can maintain the airtightness between the manhole frame member and the cover member while reducing the number of locking members to hold / release the cover member. The present invention relates to a manhole cover device for a reactor.

In general, methods of removing contaminants from raw water such as wastewater, sewage, and livestock wastewater treatment are classified into physical, chemical, and biological methods, and various combinations of the above methods are used depending on the nature and condition of the contaminants. do. Among them, the chemical treatment method consists of unit processes such as oxidation, reduction, and coagulation. In order to perform the above process, raw water is introduced, and a necessary residence time is injected by injecting chemicals necessary in a reaction tank equipped with a propeller and a stirrer. And mixing strength should be maintained.

In such a reaction tank, a manhole is formed through the upper part so that an operator can enter the inside for cleaning work, maintenance work, etc., and the manhole frame having a plurality of locking members is fixedly installed in the manhole. The member is coupled to one end by one hinge on the outer circumferential side to open and close the upper part, and a cover member is installed on the manhole frame member by the locking member.

However, in the related art, in order to enter the inside of the reaction tank due to cleaning or maintenance work, the worker had to release the locking member by releasing a plurality of locking members that fasten the cover member to the manhole frame member, and after the work was completed, the locking member was released. As a member, there was a hassle of having to cover the cover member to the manhole frame member one by one.

In addition, there is a problem that the toxic gas generated in the process of removing contaminants from raw water, such as waste water, sewage, livestock wastewater treatment, outflows through the fine gap between the manhole frame member and the cover member.

The present invention is devised to solve the above problems, an object of the present invention is to reduce the number of the locking member for hanging / releasing the cover member to the manhole frame member fixed to the reaction vessel between the manhole frame member and the cover member To provide a reactor manhole cover device that can maintain the confidentiality of the.

1 is an exploded perspective view of a manhole cover device according to a first embodiment of the present invention,

Figure 2 is a cross-sectional view of the coupling state of the manhole cover device shown in FIG.

Figure 3a, 3b is a view showing the operating state of the manhole cover device according to the first embodiment of the present invention, Figure 3a is a view showing a state in which the cover member is opened and closed in the manhole frame member, Figure 3b is a locking member Figure showing the state in which the cover member is determined by the manhole frame member,

4 is a cross-sectional view of a manhole cover device according to a second embodiment of the present invention, and

5 is a cross-sectional view of the manhole cover device according to a third embodiment of the present invention.

<Explanation of Signs of Major Parts of Drawings>

20: manhole frame member 22: close contact

24: first bracket 30: cover member

31: accommodating part 31a: fitting groove

32: second bracket 33: long hole

34: hanging end 36: viewing window

40: packing member 42: engaging projection

44: groove 50: locking member

52: bolt shaft 53: threaded portion

54: tightening nut 56: lever

58: hook 60: reactor

The present invention for achieving the above object,

A manhole frame member having one end rolled outward to have a contact portion having a circular cross section and the other end fixed to the reactor;

A cover member having one end coupled to a hinge on an outer circumferential side of the manhole frame member to open and close the manhole frame member; And

And a locking means for locking / releasing the cover member to the manhole frame member.

The manhole cover device for a reaction vessel according to the present invention having such a feature is formed so that one end of the manhole frame member, the other end of which is fixed to the reaction vessel, is rolled outward to have a circular cross section, and the cover member is installed to open and close the manhole frame member. By installing the packing member to be accommodated in the inside, it is possible to maintain the airtight between the manhole frame member and the cover member while reducing the number of the lock member when locking the cover member to the manhole frame member as a locking member.

Hereinafter, with reference to the accompanying drawings for the manhole cover device for a reactor according to a preferred embodiment of the present invention will be described in detail.

FIG. 1 shows a manhole cover device according to a first embodiment of the present invention, and FIG. 2 shows a coupled state of the manhole cover device shown in FIG. 1.

1 and 2, the manhole cover device 100 according to an embodiment of the present invention is installed to open and close the manhole frame member 20, which is fixed to the reactor 60, the manhole frame member 20 The cover member 30 to be installed, the packing member 40 is installed to be accommodated in the cover member 30, and the locking member 50 for locking / releasing the cover member 30 to the manhole frame member 20 It includes.

Manhole frame member 20 is installed in the manhole 62 formed in the reaction tank 60, the manhole frame member 20 is formed in a cylindrical shape hollow inside, one end of the whole is rolled outward to have a circular cross section The close contact portion 22 is formed. The first bracket 24 protrudes from the other side of the outer circumference. The manhole frame member 20 is fixed to the manhole 62 formed in the reaction tank 60 through welding or the like.

In addition, the cover member 30 is coupled to one end of the outer circumferential side by a hinge to open and close the manhole frame member 20, and an accommodation part 31 is formed inside the cover member 30. Here, the inside of the cover member 30 refers to the inner edge of the bottom. The fitting groove 31a is formed at the inner circumference of the accommodating part 31. On the other outer circumferential side of the cover member 30, the second bracket 32 is formed to protrude from the upper side of the first bracket 24. The long hole 33 is formed at the end of the second bracket (32). Engaging ends 34 are formed at both ends of the long hole 33, respectively. A handle 35 is formed on an upper surface of the cover member 30 to facilitate opening and closing of the cover member 30 in the manhole frame member 20.

In addition, the packing member 40 is installed to be accommodated in the accommodating part 31 of the cover member 30, and is fitted into the fitting groove 31a formed in the accommodating part 31 on the outer circumference of the upper surface of the packing member 40. Losing engagement protrusions 42 are formed. The bottom surface of the packing member 40 is a groove 44 having a hemispherical cross section is formed in an arc shape. The packing member 40 is the upper surface of the close contact portion 22 while the packing member 40 is pressed by an external force and extended to both sides by the groove 44 when the cover member 30 is locked to the manhole frame member 20. The airtightness is maintained between the manhole frame member 20 and the cover member 30 so as to surround the cover.

In addition, the locking member 50 is for locking / releasing the cover member 30 to the manhole frame member 20, and the locking member 50 is installed to the first bracket 24 formed on the manhole frame member 20. And a tightening nut 54 screwed to the bolt shaft 52.

One end of the bolt shaft 52 is pivotally coupled to the first bracket 24 formed on the manhole frame member 20, and the other end of the bolt shaft 52 is formed with a screw part 53. The tightening nut 54 is screwed to the threaded portion 53 of the bolt shaft 52. The locking member 50 of the bolt shaft 52 accommodated in the long hole 33 formed in the second bracket 32 of the cover member 30 when the cover member 30 in the manhole frame member 20 As the tightening nut 54 is screwed to the screw part 53, the cover member 30 is pressed while the cover member 30 is determined to the manhole frame member 20, and the tightening nut 54 is the second bracket 32. Hanging on the locking end 34 formed at the end of the escape is prevented outward.

Figure 3a, 3b shows the operating state of the manhole cover device according to the first embodiment of the present invention, Figure 3a shows a state in which the cover member is released by opening and closing the manhole frame member, the locking member in Figure 3b The state in which the cover member is determined by the manhole frame member is shown.

Referring to Figure 3a, 3b will be described the operation of the reactor manhole cover device according to a preferred embodiment of the present invention.

When the operator releases and closes the cover member fixed to the manhole frame member for cleaning and repairing the inside of the reactor, as shown in FIG. 3A, first, the hinge of the first bracket 24 of the manhole frame member 20 is opened. Fastened to the screw member 53 of the bolt shaft 52, part of which is held in the long hole 33 formed in the second bracket 32 of the cover member 30, and tightens the cover member 30. Loosen the nut (54). At this time, since the tightening nut 54 is screwed to the bolt shaft 52 so as to be prevented from falling out by being caught by the locking end 34 formed at the end of the long hole 33, the lower end of the tightening nut 54 is locked ( Loosen on the threaded portion 53 of the bolt shaft 52 so as to be positioned on the upper end of 34, and then bolt the bolt shaft 52 and the tightening nut 54 to the outside of the manhole frame member 20. At this time, the cover member 30 that is ruled on the manhole frame member 20 is released.

Then, when the cover member 30 that has been locked to the manhole frame member 20 by the locking member 50 is released, the operator grasps the handle 35 formed on the upper portion of the cover member 30 and lifts it upward. 30) is opened and closed by pivoting around the hinge. At this time, the packing member 40 accommodated in the accommodating part 31 formed in the cover member 30 is separated because the coupling protrusion 42 is fitted into the fitting groove 31a formed at the inner circumference of the accommodating part 31. This is avoided.

Thus, when the cover member 30 is opened and closed, the operator can enter the inside of the reaction tank 60 through the manhole frame member 20 to perform cleaning and maintenance work.

On the other hand, when the operator is to clean the interior of the reactor after the operation to open and close the cover member to rule on the manhole frame member, as shown in Figure 3b, the cover that was opened and closed by the hinge to the upper side of the manhole frame member 20 The member 30 is lowered and positioned above the manhole frame member 20.

Then, when the cover member 30 is positioned on the upper part of the manhole frame member 20, the bolt shaft 52, which has been removed from the outside of the manhole frame member 20, stands vertically toward the cover member 30, and the bolt shaft 52 A part of the long hole 33 formed in the second bracket (32).

When a part of the bolt shaft 52 is accommodated in the long hole, the tightening nut 54 screwed to the screw part 53 of the bolt shaft 52 is tightened to fix the cover member 30 to the manhole frame member 20. Let's do it. At this time, the packing member 40 installed to be accommodated in the receiving part 31 of the cover member 30 is pressed by an external force and extended to both sides with respect to the groove 44 contacting the contact part 22. The upper surface of the 22 is in close contact with the airtight between the manhole frame member 20 and the cover member 30 is maintained.

Figure 4 shows a manhole cover device according to a second embodiment of the present invention.

Referring to FIG. 4, at the center of the upper surface of the cover member 30, a viewing window 36 may be installed to visually check the inside of the reaction tank 60.

To this end, a through hole 37 penetrates through the center of the upper surface of the cover member 30.

The see-through window 36 has an outer diameter larger than the inner diameter of the through hole 37 and is formed of a transparent body. The see-through window 36 is positioned above the through-hole 37, and the see-through window 36 positioned above the through-hole 37 is bolted to the upper surface of the cover member 30. It is accommodated in and fixed. Through this viewing window 36, the worker can check the cleanliness and defects inside the reaction tank 60 from time to time.

Figure 5 shows a manhole cover device according to a third embodiment of the present invention.

Referring to FIG. 5, the locking member 50 for locking / releasing the cover member 30 to the manhole frame member 20 includes a lever 56 coupled to the outer circumference of the manhole frame member 20 by a hinge. It is coupled to the lever 56 by a hinge includes a hook 58 is installed to be caught on the upper surface of the cover member (30).

The lever 56 is hingedly coupled to the other side of the outer circumference of the manhole frame member 30 to the lower side of the contact portion 22.

The locking ring 58 is formed to be multi-folded, one end is coupled to the lever 56 by a hinge, the other end is installed to be caught by the locking portion 39 formed on the upper surface of the cover member (30). The locking member 50 hangs the other end of the locking hook 58 when the cover member 30 is attached to the manhole frame member 20 to the locking portion 39 formed on the upper surface of the cover member 30, and the lever 56. ) And pulls down the locking ring 58 by the lever 56 while pressing the upper surface of the cover member 30, the cover member 30 is determined to the manhole frame member 20.

Such a manhole cover device 100 for a reaction vessel forms a close contact portion 22 having a circular cross section on one end of the manhole frame member 20, and hangs on the manhole frame member 20 by the locking member 50. Toxic gas generated in the interior of the reaction tank 60 because it is installed to receive the packing member 40 in the inside of the cover member 30 to be released to maintain the airtight between the manhole frame member 20 and the cover member 30 This can prevent the leakage of.

As described above, the manhole cover device for the reaction tank according to the present invention is formed so that one end of the manhole frame member fixed to the manhole formed in the reaction vessel is rolled outward to have a circular cross section, and is installed to open and close the manhole frame member. By installing the packing member to be accommodated inside the cover member that is suspended / released by the member, it is possible to maintain the airtight between the manhole frame member and the cover member while reducing the number of locking members that hang / release the cover member to the manhole frame member. It can be effective.

Although the present invention has been described as an embodiment, the present invention is not limited to the above-described embodiment, and the present invention without departing from the gist of the present invention claimed in the following Utility Model Registration Claims is common in the field to which the present invention belongs. Anyone with knowledge will be able to make various variations.

Claims (8)

A manhole member 20 having one end rolled outward to have a close contact portion 22 having a circular cross section and the other end fixed to the reactor 60; A cover member 30 having one end coupled to the outer peripheral side of the manhole frame member 20 by a hinge to open and close the manhole frame member 20; And Reactive tank manhole cover device comprising a; locking means for locking / releasing the cover member 30 to the manhole frame member (20). The method according to claim 1, wherein the receiving member 31 is formed in the cover member 30, the fitting groove 31a is formed on the inner circumference of the receiving portion 31, the fitting groove 31a is packed Reaction chamber manhole cover device characterized in that the separation is prevented by the engaging projection (42) of the member (40). The bottom surface of the packing member 40 in contact with the upper surface of the close contact portion 22 is formed with a groove 44 having a hemispherical cross section, the airtight at the time of rubbing the cover member 30 is maintained Reaction tank manhole cover device, characterized in that the packing member 40 is in close contact with the contact portion 22 while being extended to both sides by the groove (44). The method according to claim 1, The locking means, A first bracket 24 protruding from the outer periphery of the manhole frame member 20; A second bracket 32 protruding on the outer circumference of the cover member 30 so as to be positioned above the first bracket 24 and having a long hole 33 open at an end thereof; And And a locking member 50 having a tightening nut 54 coupled to the first bracket 24 by a hinge and screwed to a bolt shaft 52 having a threaded portion on the other side thereof. Reactor manhole cover. 5. The bolt shaft 52 of claim 4, wherein a locking end 34 is formed at each end of the second bracket 32, and a part is received in the long hole 33 when the lid member 30 is locked. Reaction tank manhole cover device, characterized in that the fastening nut (54) screwed to the screw portion (53) of the) is caught by the locking end (34) is prevented from being separated out. The method according to claim 1, The locking means, A lever 56 coupled to the outer circumference of the manhole frame member 20 by a hinge; And It is formed to be multi-folded, one end is coupled to the lever 56 by a hinge, the other end; locking member 50 is provided with a locking ring 58 to be caught on the upper surface of the cover member 30; Reactor manhole cover device. The manhole cover device according to any one of claims 1 to 6, wherein a sight glass (36) is installed at the center of the upper surface of the cover member (30) so that the inside of the reaction tank (60) can be seen. Once the whole is rolled outward, the contact portion 22 having a circular cross section is formed, and the other end is fixedly installed in the reaction tank 60, and the manhole frame member 20 having the first bracket 24 protrudingly formed on the other side of the outer circumference. ); One end is coupled to the outer periphery of the manhole frame member 20 by a hinge to open and close the manhole frame member 20, and protrudes on the outer periphery so as to be positioned on the upper side of the first bracket 24 to open at the end. Long holes 33 are formed, and second brackets 32 having locking ends 34 are formed at both ends of the long holes 33, respectively, and an accommodating part 31 is formed therein. A cover member 30 having a fitting groove 31a formed at an inner circumference of the part 31 and having a viewing window 36 installed at the center of the upper surface thereof so as to see the inside of the reactor 60; Coupling protrusions 42 are formed on the outer circumference of the upper surface so as to be inserted into the fitting groove 31a of the accommodating portion 31 to prevent detachment. Grooves 44 are formed to expand to both sides by the grooves 44 when the lid member 30 is ruled, and close to cover the close contact portion 31 so that the manhole frame member 20 and the cover member ( A packing member 40 for maintaining airtightness between the 30; And One end is coupled to the first bracket 24 by a hinge, and a tightening nut 54 screwed to a bolt shaft 52 having a threaded portion 53 formed at the other end thereof is provided to the manhole frame member 20. Reaction tank manhole cover device comprising a; locking member (50) for hanging / releasing the cover member (30).