A four-sided visual viewing tube component

Abstract

The present invention relates to the technical field of thermal fluid devices, and specifically to a four-sided visual sight tube assembly. It includes an upper fastening flange, a lower fastening flange and a visual tube. The upper fastening flange is connected to the lower fastening flange by screws and nuts. There are three groups of connecting screws and nuts, which are symmetrically distributed in the middle position of the fastening flange to compress and fasten the visual tube; the two ends of the visual tube are respectively placed in the grooves of the upper and lower fastening flanges, and an upper sealing gasket and a lower sealing gasket are respectively provided between the visual tube and the fastening flange, and the sealing adopts end face sealing. The present invention has a compact structure, low cost, and is easy to replace; it is convenient for the external joint of the connecting assembly to be directly connected when the visual sight tube assembly fails; it can observe the flow state of the fluid in the tube from a full angle, and the state in the tube is more determined by installing a float with a guide rail. The float with a guide rail avoids the impact of the float on the peep tube, thereby improving the service life and safety of the pipe fittings.

Description

Technical Field

[0001] The invention relates to the technical field of thermal fluid devices, and in particular to a four-sided visual viewing tube assembly. Background Art

[0002] In thermal fluid systems, it is usually necessary to be able to observe the flow state in the pipe.

[0003] For high-temperature and high-pressure fluid working fluids, a sight glass is generally installed in the pipeline. The sight glass consists of a sight glass base plate, a sight glass glass, a valve assembly, etc. This structure cannot achieve full-view observation of the fluid in the pipe, which affects the observation effect.

[0004] Furthermore, there is not much difference in visual observation between when some transparent fluids flow through the sight glass and when no fluids flow through the sight glass.

[0005] Therefore, installing ordinary sight glasses in pipelines of some special fluid working media cannot fully meet their use requirements. Summary of the invention

[0006] The purpose of the present invention is to provide a four-sided visual viewing tube assembly to ensure the observation effect of the fluid working medium in the tube in the thermal fluid system in view of the above-mentioned defects in the prior art. It can be applied to high-temperature and high-pressure fluid working medium and is easy to disassemble and install.

[0007] The technical solution of the present invention is as follows:

[0008] A four-sided visual viewing tube assembly comprises an upper fastening flange, a lower fastening flange and a viewing tube, wherein the upper fastening flange is connected to the lower fastening flange by screws and nuts, wherein there are three groups of connecting screws and nuts, which are symmetrically distributed at the middle position of the fastening flange to compress and fasten the viewing tube;

[0009] The two ends of the sight tube are respectively placed in the grooves of the upper and lower fastening flanges, an upper sealing gasket and a lower sealing gasket are respectively arranged between the sight tube and the fastening flange, and the sealing adopts end face sealing.

[0010] One side of the viewing tube is in a groove of the circular fastening flange, and the other side is also in a groove of the same size.

[0011] The sight tube and the circular fastening flanges at both ends are locked by screws and lock nuts.

[0012] Sealing pads are arranged at both ends of the high-pressure visual tube, the sealing pads are placed in the grooves, and sealing glue is filled between the grooves and the high-pressure visual tube.

[0013] The sealant is a high temperature and high pressure resistant sealant.

[0014] A guide rail and a float are placed on the central axis of the sight tube. Both ends of the guide rail are fixed on the central axis of the sight tube through guide rail supports in upper and lower fastening flanges. A circular hole slightly larger than the outer diameter of the guide rail is opened in the center of the float. The float is nested on the guide rail and can move up and down along the axial direction on the guide rail.

[0015] The interface of the upper fastening flange is in the form of internal threads, and the interface of the lower fastening flange uses external threads that match the internal threads.

[0016] The visual tube is a circular tube.

[0017] The beneficial effects of the present invention are:

[0018] The invention has a compact structure, low cost and is easy to replace; both ends of the assembly adopt matching internal and external threads, so that when the visual sight tube assembly fails, the external joint of the connecting assembly can be directly connected; the flow state of the fluid in the pipe can be observed at a full viewing angle, and the state in the pipe can be more determined by installing a float with a guide rail, and the float with a guide rail avoids the impact of the float on the peep tube, thereby improving the service life and safety of the pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a side view of the present invention;

[0020] Figure 2 A top view of the fastening flange of the present invention;

[0021] In the figure: 1-upper fastening flange, 2-upper sealing gasket, 3-float, 4-guide rail, 5-lower sealing gasket, 6-screw, 7-visible tube, 8-external thread, 9-lower fastening flange, 10-internal thread, 11-nut, 12-guide rail support, 13-groove. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1-2 As shown, the present invention comprises an upper fastening flange 1, a lower fastening flange 9 and a circular visual tube 7 capable of withstanding high temperature and high pressure. The upper fastening flange 1 is connected to the lower fastening flange 9 through a screw 6 and a nut 11.

[0024] One side of the sight tube 7 is in a groove 13 of the circular fastening flange, and the other side is also in a groove 13 of the same size.

[0025] There are three groups of connecting screws 6 and nuts 11 symmetrically distributed in the middle of the fastening flange to compress and fasten the viewing tube 7 .

[0026] The two ends of the visual tube 7 are respectively placed in the grooves 13 of the upper and lower fastening flanges. An upper sealing gasket 2 and a lower sealing gasket 5 are respectively arranged between the visual tube 7 and the fastening flanges, and the sealing adopts end face sealing.

[0027] Sealing pads 2 are provided at both ends of the high-pressure visual tube 7 , and the sealing pads 5 are placed in the groove 13 , and the space between the groove 13 and the high-pressure visual tube 7 is filled with sealant.

[0028] A guide rail 4 and a float 3 are placed on the central axis of the visual tube 7, and both ends of the guide rail 4 are fixed on the central axis of the visual tube 7 by guide rail supports 12 in upper and lower fastening flanges;

[0029] A circular hole slightly larger than the outer diameter of the guide rail 4 is opened at the center of the float 3 . The float 3 is nested on the guide rail 4 and can move up and down along the axial direction on the guide rail 4 .

[0030] The interface of the upper fastening flange 1 is in the form of an internal thread 10 , and the interface of the lower fastening flange 9 is in the form of an external thread 8 matching the internal thread 10 .

[0031] The space between the groove 13 in the fastening flange and the visual tube 7 is filled with a high temperature and high pressure resistant sealant.

[0032] A four-sided visual viewing tube assembly, comprising an upper fastening flange 1, a lower fastening flange 9 and a viewing tube 7, wherein the upper fastening flange 1 is connected to the lower fastening flange 9 through a screw 6 and a nut 11;

[0033] There are three groups of connecting screws 6 and nuts 11, which are symmetrically distributed in the middle of the fastening flange to compress and fasten the visual tube 7;

[0034] The two ends of the visual tube 7 are respectively placed in the grooves 13 of the upper and lower fastening flanges. An upper sealing gasket 2 and a lower sealing gasket 5 are respectively arranged between the visual tube 7 and the fastening flanges, and the sealing adopts end face sealing.

[0035] A four-sided visual viewing tube assembly, wherein one side of the viewing tube 7 is in a groove 13 of a circular fastening flange, and the other side is also in a groove 13 of the same size.

[0036] A four-sided visual viewing tube assembly, wherein a viewing tube 7 and circular fastening flanges at both ends are locked by screws 6 and locking nuts 11.

[0037] A four-sided visual tube assembly, two ends of a high-pressure visual tube 7 are provided with sealing pads 2, the sealing pads 5 are placed in a groove 13, and a sealant is filled between the groove 13 and the high-pressure visual tube 7.

[0038] A four-sided visual viewing tube component, wherein the sealant is a high temperature and high pressure resistant sealant.

[0039] A four-sided visual tube assembly, a guide rail 4 and a float 3 are placed on the central axis of the visual tube 7, and both ends of the guide rail 4 are fixed on the central axis of the visual tube 7 through guide rail supports 12 in upper and lower fastening flanges;

[0040] A circular hole slightly larger than the outer diameter of the guide rail 4 is opened at the center of the float 3 . The float 3 is nested on the guide rail 4 and can move up and down along the axial direction on the guide rail 4 .

[0041] A four-sided visual viewing tube assembly, wherein the interface of an upper fastening flange 1 is in the form of an internal thread 10, and the interface of a lower fastening flange 9 is in the form of an external thread 8 matching the internal thread 10.

[0042] A four-sided visual tube assembly, wherein the visual tube 7 is a circular tube.

[0043] The working principle of the present invention is that in a high-temperature and high-pressure thermal fluid system, the flow state in the tube can be visualized at all angles, and some transparent fluids can also be directly determined by setting a float.

[0044] The component joint uses internal and external matching threads, which avoids the problem that the other two sections of the four-sided visual tube component cannot be connected after a failure occurs.

[0045] The invention has a compact structure, low cost and is easy to replace;

[0046] Both ends of the assembly adopt matching internal and external threads, so that when the visual sight tube assembly fails, the external connector of the connecting assembly can be directly connected;

[0047] The flow state of the fluid in the pipe can be observed from a full angle, and the state in the pipe can be more certain by installing a float with a guide rail. The float with a guide rail avoids the impact of the float on the peep tube, thereby improving the service life and safety of the pipe fittings.

Claims

1. A four-sided visual viewing tube assembly, comprising an upper fastening flange (1), a lower fastening flange (9) and a viewing tube (7), wherein the upper fastening flange (1) is connected to the lower fastening flange (9) through a screw (6) and a nut (11); Features: There are three groups of screw rods (6) and nuts (11), which are symmetrically distributed at the middle position of the fastening flange and are used to compress and fasten the visual tube (7); The two ends of the visual tube (7) are respectively placed in the grooves (13) of the upper and lower fastening flanges, and an upper sealing gasket (2) and a lower sealing gasket (5) are respectively arranged between the visual tube (7) and the fastening flange, and the sealing adopts end face sealing; A guide rail (4) and a float (3) are placed on the central axis of the visual tube (7); both ends of the guide rail (4) are fixed on the central axis of the visual tube (7) through guide rail supports (12) in upper and lower fastening flanges; a circular hole slightly larger than the outer diameter of the guide rail (4) is opened in the center of the float (3); the float (3) is nested on the guide rail (4) and can move up and down along the axial direction on the guide rail (4); The interface of the upper fastening flange (1) is in the form of an internal thread (10), and the interface of the lower fastening flange (9) is in the form of an external thread (8) matching the internal thread (10).

2. A four-sided visualization tube assembly as claimed in claim 1, characterized in that: One side of the viewing tube (7) is in a groove (13) of the circular fastening flange, and the other side is also in a groove (13) of the same size.

3. A four-sided visualization tube assembly as claimed in claim 1, characterized in that: The visual tube (7) and the circular fastening flanges at both ends are locked by screws (6) and locking nuts (11).

4. A four-sided visualization tube assembly as claimed in claim 1, characterized in that: Upper sealing pads (2) are provided at both ends of the viewing tube (7), the lower sealing pad (5) is placed in the groove (13), and sealing glue is filled between the groove (13) and the viewing tube (7).

5. A four-sided visualization tube assembly as claimed in claim 4, characterized in that: The sealant is a high temperature and high pressure resistant sealant.

6. A four-sided visualization tube assembly as claimed in claim 1, characterized in that: The visual tube (7) is a circular tube.

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