CN213177721U - Sight glass device of dangerous chemical medium conveying pipeline - Google Patents
Sight glass device of dangerous chemical medium conveying pipeline Download PDFInfo
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- CN213177721U CN213177721U CN202022031006.9U CN202022031006U CN213177721U CN 213177721 U CN213177721 U CN 213177721U CN 202022031006 U CN202022031006 U CN 202022031006U CN 213177721 U CN213177721 U CN 213177721U
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Abstract
The utility model provides a sight glass device of dangerous chemical medium pipeline, belongs to chemical production pipeline conveying equipment technical field for observe the medium liquid in the pipeline. The technical scheme is as follows: medium circulation pipeline installs in medium pipeline, the one end of observing the pipeline is connected with medium circulation pipeline is perpendicular, the other end of observing the pipeline is connected with observes lens centre gripping flange, it installs in observing lens centre gripping flange to observe the lens, nitrogen gas protective sleeve suit is in observing the pipeline periphery, nitrogen gas protective sleeve's front end is connected with the observation pipeline, nitrogen gas protective sleeve's rear end is connected with protection lens centre gripping flange, the protection lens is installed in protection lens centre gripping flange, the protection lens is on a straight line with the observation lens, install nitrogen gas inlet tube and nitrogen gas valve on the nitrogen gas protective sleeve. The utility model discloses simple structure, convenient to use can effectively protect observing the lens, have guaranteed safety in production, have reduced maintenance work load, have reduced manufacturing cost.
Description
Technical Field
The utility model relates to a sight glass device that carries out observation to the transport medium in the pipeline when dangerous chemical medium carries belongs to chemical production pipeline and carries and equip technical field.
Background
In the transportation process of dangerous chemicals, especially in the parts of the inlet and outlet main production devices, in order to prevent the possible conditions of abnormal damage of equipment, blockage of material solids and the like, special monitoring facilities are required to be installed at special positions. The sight glass is a commonly used observation device widely applied to the conveying process of chemical production. The existing sight glass device is composed of a single-layer quartz glass observation window, the periphery of the glass is sealed by sealing strips and is compressed by bolts, and the structural form is simpler. However, for dangerous chemicals, especially in the application process of special medium material pipelines with high temperature, low temperature, high pressure, low pressure, flammability, explosiveness, high toxicity and the like, the existing single lens device has a very large potential safety hazard. In the use process of a conveying pipeline, the pipeline deformation can be caused by temperature and pressure changes, the quartz glass of the sight glass can be burst for a common sight glass device under the condition, and once a lens is broken, the material leakage is caused, unexpected serious consequences can be generated, particularly, the sight glass device is used as a main production inspection area, and the personnel damage can be caused.
In production, after low-temperature condensation by the heat exchanger, because the medium temperature is low (about 20 ℃), the traditional sight glass can also form a large amount of ice crystals on the surface of the lens to obstruct observation, and because of low-temperature freezing, the sight glass can have the phenomena of poor sealing, easy cracking of the lens and the like, once any slight leakage of the heat exchanger occurs, the normal use of subsequent equipment can be influenced, and great potential safety hazard is brought to safety production. In addition, the existing sight glass replacement and maintenance cycle is short, and the sight glass needs to be maintained, checked and replaced on average every month, so that the maintenance workload and the production cost are increased.
Therefore, the development of a special sight glass device with high safety and high reliability is very necessary for the safe production of chemical engineering.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a hazardous chemicals medium pipeline's sight glass device is provided, this kind of sight glass device can effectively protect the lens of sight glass under the basic function prerequisite of guaranteeing the sight glass, improves sight glass device's security, reduces the potential safety hazard that exists in the production process, guarantee safety in production.
The technical scheme for solving the technical problems is as follows:
a sight glass device of a dangerous chemical medium conveying pipeline comprises a medium circulating pipeline, a medium pipeline connecting flange, an observation pipeline, an observation lens clamping flange, an observation lens, a nitrogen protective sleeve, a protective lens clamping flange and a protective lens, wherein the medium circulating pipeline is arranged in the medium conveying pipeline, two ends of the medium circulating pipeline are connected with the medium conveying pipeline through the medium pipeline connecting flange, one end of the observation pipeline is vertically connected with the medium circulating pipeline, the other end of the observation pipeline is connected with the observation lens clamping flange, the observation lens is arranged in the observation lens clamping flange, the nitrogen protective sleeve is sleeved on the periphery of the observation pipeline, the front end of the nitrogen protective sleeve is connected with one end of the observation pipeline close to the medium circulating pipeline, the rear end of the nitrogen protective sleeve is connected with the protective lens clamping flange, the protective lens is arranged in the protective lens clamping flange, the central axis of protection lens and the central axis of observing the lens are on a straight line, install the nitrogen gas inlet tube on the section of thick bamboo wall of nitrogen gas protective sleeve, and the nitrogen gas inlet tube is connected with the nitrogen gas pipeline, installs the nitrogen gas valve on the nitrogen gas inlet tube.
Above-mentioned dangerous chemical medium pipeline's sight glass device, it has two sets ofly respectively to observe pipeline and nitrogen gas protective case, and two are observed the pipeline and are located the relative both sides of medium circulation pipeline respectively, and two are observed the pipeline and are equipped with respectively and observe lens centre gripping flange, observe the lens, and two nitrogen gas protective cases suit respectively are on two are observed the pipeline, and protection lens centre gripping flange, protection lens are installed respectively at two nitrogen gas protective case both ends, install nitrogen gas inlet pipe and nitrogen gas valve door on two nitrogen gas protective cases respectively.
Above-mentioned dangerous chemical medium pipeline's sight glass device, nitrogen gas protective sleeve comprises two structures by anterior sleeve and rear portion sleeve, and nitrogen gas protective sleeve's anterior sleeve and rear portion telescopic inner chamber are linked together, and nitrogen gas protective sleeve's anterior sleeve and rear portion sleeve are connected through the sleeve flange, have the sleeve flange sealing washer in the sleeve flange to seal, observe the pipeline and observe the anterior sleeve that lens centre gripping flange passes through nitrogen gas protective sleeve and enter into in the sleeve of rear portion.
Above-mentioned dangerous chemical medium pipeline's sight glass device, observe lens centre gripping flange, protection lens centre gripping flange comprises a foraminiferous ring flange and a closed ring flange respectively, foraminiferous ring flange respectively with observe pipeline and nitrogen gas protective case's rear end welded connection, closed ring flange is connected through the bolt with foraminiferous ring flange, observe lens and protection lens and place respectively between foraminiferous ring flange and closed ring flange, closed ring flange is the lens gland, observe lens and protection lens's periphery has respectively and observes lens sealing washer and protection lens sealing washer, observe lens centre gripping flange and protection lens centre gripping flange and will observe lens sealing washer and protection lens sealing washer pressure tight seal respectively.
The sight glass device of the dangerous chemical medium conveying pipeline is also provided with a plurality of supporting rib plates which are respectively connected between the medium circulation pipeline and the nitrogen protection sleeve.
The utility model has the advantages that:
the utility model discloses observing the lens at the end installation of observing the pipeline, observe the pipeline and observe the lens and place in nitrogen gas protective sleeve, the protective glass piece is installed to nitrogen gas protective sleeve's end, can see through the protective glass piece and observe the lens, be filled with the nitrogen gas with circulation medium looks isopressure in the nitrogen gas protective sleeve, make and observe lens both sides pressure and be in balanced state, dry nitrogen gas has completely cut off the air around the observation lens simultaneously, moisture content, temperature etc., make and observe the lens system and be in a stable operating condition, avoid taking place to break and damage.
The utility model discloses simple structure, convenient to use can effectively protect the observation lens of sight glass, have avoided the emergence of the phenomenon of observing that the lens is ageing, damaged, fracture, have improved sight glass device's security, have reduced the potential safety hazard that exists in the production process, have ensured safety in production, have reduced the condition such as frequent dismantlement because the inspection is maintained and is brought simultaneously, have reduced maintenance work volume, have reduced manufacturing cost.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The figures are labeled as follows: medium circulation pipeline 1, medium pipeline flange 2, observation pipeline 3, observation lens clamping flange 4, observation lens 5, nitrogen protection sleeve 6, protection lens clamping flange 7, protection lens 8, nitrogen inlet pipe 9, nitrogen valve 10, sleeve flange 11, observation lens sealing washer 12, protection lens sealing washer 13, sleeve flange sealing washer 14, support gusset 15.
Detailed Description
The utility model discloses constitute by medium pipeline transportation part, sight glass observation part, sight glass protection part, support part.
The medium pipeline conveying part comprises a medium circulation pipeline 1 and a medium pipeline connecting flange 2 and is used for normally conveying material media; the sight glass observation part comprises an observation pipeline 3, an observation lens clamping flange 4, an observation lens 5 and an observation lens sealing ring 12 and is used for observing a circulating material medium; the sight glass protection part comprises a nitrogen protection sleeve 6, a protection lens clamping flange 7, a protection lens 8, a protection lens sealing ring 13, a sleeve connecting flange 11 and a sleeve connecting flange sealing ring 14, and is used for protecting the sight glass lens and preventing the lens from cracking due to abnormity; the supporting part is composed of a supporting rib plate 15 and is used for supporting the protecting part of the sight glass.
The figure shows that a medium circulation pipeline 1 is installed in a medium conveying pipeline, two ends of the medium circulation pipeline 1 are connected with the medium conveying pipeline through a medium pipeline connecting flange 2, material media are normally conveyed through the medium circulation pipeline 1, and a sight glass observation part and a sight glass protection part are installed on the medium circulation pipeline 1.
The figure shows that two observation pipelines 3 are provided, the two observation pipelines 3 are respectively positioned at two opposite sides of the medium circulation pipeline 1, one ends of the two observation pipelines 3 are respectively and vertically connected with the medium circulation pipeline 1, the other ends of the two observation pipelines 3 are respectively connected with an observation lens clamping flange 4, and an observation lens 5 is arranged in each observation lens clamping flange. The medium liquid enters the observation pipeline 3 through the medium flowing pipeline 1, the medium liquid is contacted with one side of the observation lens 5, and the character of the medium liquid can be observed through the observation lens 5.
It is shown that two nitrogen protective sleeves 6 are respectively fitted over two observation tubes 3, and the observation lens 5 on each side is protected in the nitrogen protective sleeve 6 on each side. The front end of the nitrogen protective sleeve 6 is connected with one end, close to the medium circulation pipeline 1, of the observation pipeline 3, the rear end of the nitrogen protective sleeve 6 is connected with a protective lens clamping flange 7, a protective lens 8 is installed in the protective lens clamping flange 7, the central axis of the protective lens 8 and the central axis of the observation lens 5 are on the same straight line, and medium liquid on the inner side of the observation lens 5 can be seen through the protective lens 8. And a nitrogen inlet pipe 9 is arranged on the wall of the nitrogen protective sleeve 6, the nitrogen inlet pipe 9 is connected with a nitrogen pipeline, and a nitrogen valve 10 is arranged on the nitrogen inlet pipe 9. Nitrogen gas enters the inner cavity of the nitrogen gas protective sleeve 6 through the nitrogen gas inlet pipe 9 to protect the observation lens 5.
The nitrogen protective sleeve 6 is shown as a two-piece structure consisting of a front sleeve and a rear sleeve, which is a cavity connected by a flange and can be used to replace the observation lens 5. The front sleeve of the nitrogen protection sleeve 6 is communicated with the inner cavity of the rear sleeve, the front sleeve and the rear sleeve of the nitrogen protection sleeve 6 are connected through a sleeve connecting flange 11, a sleeve connecting flange sealing ring 14 is arranged in the sleeve connecting flange 11 for sealing, and the observation pipeline 3 and the observation lens clamping flange 4 enter the rear sleeve through the front sleeve of the nitrogen protection sleeve 6.
The viewing lens holding flange 4 and the protective lens holding flange 7 are shown to be composed of a flange having a hole and a closed flange, respectively. The hole flange plate is respectively connected with the rear ends of the observation pipeline 3 and the nitrogen protective sleeve 6 in a welded mode, the closed flange plate is connected with the hole flange plate through bolts, the observation lens 5 and the protective lens 8 are respectively placed between the hole flange plate and the closed flange plate, the closed flange plate is a lens gland, the periphery of the observation lens 5 and the periphery of the protective lens 8 are respectively provided with an observation lens sealing ring 12 and a protective lens sealing ring 13, and the observation lens clamping flange 4 and the protective lens clamping flange 7 are used for respectively pressing and sealing the observation lens sealing ring 12 and the protective lens sealing ring 13.
In the figure, a plurality of support rib plates 15 are respectively connected between the medium circulation pipe 1 and the nitrogen protection sleeve 6. The upper ends of the plurality of support rib plates 15 are respectively connected with two ends of the medium circulation pipeline 1, and the lower ends of the plurality of support rib plates 15 are respectively connected with the nitrogen protection sleeve 6.
The utility model discloses a use as follows:
firstly, closing a valve of a medium conveying pipeline, installing a medium circulation pipeline 1 in the medium conveying pipeline, and connecting two ends of the medium circulation pipeline 1 with the medium conveying pipeline through a medium pipeline connecting flange 2;
then, a nitrogen valve 10 on a nitrogen inlet pipe 9 is opened, and dry nitrogen with the same pressure as the medium pressure of the circulation medium circulation pipeline 1 is injected into the nitrogen protection sleeve 6 to protect the observation lens 5;
then, a valve of the medium conveying pipeline is opened, so that the material medium enters the medium circulation pipeline 1 and then enters the sight glass pipeline 3 through the medium circulation pipeline 1, and an observer observes the conditions of medium flowing condition, medium color appearance and the like through the protective lens 8 and the observation lens 5.
The dry nitrogen input into the nitrogen protective sleeve 6 of the utility model isolates the air and the moisture in the air, so that the surface of the observation lens 5 is not frozen any more; the pressure of the dry nitrogen is the same as that of the circulating medium, so that the observation lens 5 is in a stable and balanced working state, deformation and aging are not easy to occur, and the maintenance, maintenance and replacement periods of the sight glass are greatly reduced.
The utility model discloses an embodiment as follows:
the diameter of the medium circulation pipeline 1 is 89mm as far as the middle;
the model of the medium pipeline connecting flange 2 is WN-80(B) -16-RF-S =4mm-20#, HG/T20592;
the observation lens 5 is made of 12mm thick quartz glass and has a diameter of 64 mm;
the diameter of the nitrogen protection sleeve 6 is 159mm as far as the front edge, and the length is 230 mm;
the nitrogen valve 10 is a 1/2 stainless steel needle valve;
the protective lens 8 is made of 10mm thick quartz glass with the diameter of 168 mm;
the observation lens sealing ring 12 and the protection lens sealing ring 13 are made of polytetrafluoroethylene rubber and have the thickness of 6 mm;
the sleeve connecting flange sealing ring 14 is made of a polytetrafluoroethylene rubber plate and is 6mm thick;
the supporting rib plates 15 are 4 stainless steel supporting plates with the thickness of 6mm, the width of 40mm and the length of 230 mm.
Claims (5)
1. A sight glass device of a dangerous chemical medium conveying pipeline is characterized in that: the device comprises a medium circulation pipeline (1), a medium pipeline connecting flange (2), an observation pipeline (3), an observation lens clamping flange (4), an observation lens (5), a nitrogen protective sleeve (6), a protective lens clamping flange (7) and a protective lens (8), wherein the medium circulation pipeline (1) is arranged in a medium conveying pipeline, two ends of the medium circulation pipeline (1) are connected with the medium conveying pipeline through the medium pipeline connecting flange (2), one end of the observation pipeline (3) is vertically connected with the medium circulation pipeline (1), the other end of the observation pipeline (3) is connected with the observation lens clamping flange (4), the observation lens (5) is arranged in the observation lens clamping flange (4), the nitrogen protective sleeve (6) is sleeved at the periphery of the observation pipeline (3), the front end of the nitrogen protective sleeve (6) is connected with one end of the observation pipeline (3) close to the medium circulation pipeline (1), the rear end of nitrogen gas protective sleeve (6) is connected with protection lens centre gripping flange (7), installs in protection lens centre gripping flange (7) protection lens (8), and the central axis of protection lens (8) and the central axis of observing lens (5) are on a straight line, installs nitrogen gas inlet tube (9) on the section of thick bamboo wall of nitrogen gas protective sleeve (6), and nitrogen gas inlet tube (9) are connected with the nitrogen gas pipeline, install nitrogen gas valve (10) on nitrogen gas inlet tube (9).
2. The sight glass apparatus of a hazardous chemical media delivery conduit of claim 1, wherein: observe pipeline (3) and nitrogen gas protective sleeve (6) and have two sets ofly respectively, two relative both sides that observe pipeline (3) and be located medium circulation pipeline (1) respectively, two are observed pipeline (3) and are equipped with observation lens centre gripping flange (4) respectively, observe lens (5), two nitrogen gas protective sleeve (6) suit respectively are on two are observed pipeline (3), protection lens centre gripping flange (7) are installed respectively at two nitrogen gas protective sleeve (6) both ends, protection lens (8), install nitrogen gas inlet tube (9) and nitrogen gas valve (10) on two nitrogen gas protective sleeve (6) respectively.
3. The sight glass apparatus of a hazardous chemical media delivery conduit of claim 2, wherein: the nitrogen protection sleeve (6) is of a two-body structure formed by a front sleeve and a rear sleeve, the front sleeve of the nitrogen protection sleeve (6) is communicated with the inner cavity of the rear sleeve, the front sleeve and the rear sleeve of the nitrogen protection sleeve (6) are connected through a sleeve connecting flange (11), a sleeve connecting flange sealing ring (14) is arranged in the sleeve connecting flange (11) for sealing, and an observation pipeline (3) and an observation lens clamping flange (4) enter the rear sleeve through the front sleeve of the nitrogen protection sleeve (6).
4. The sight glass apparatus of a hazardous chemical media delivery conduit of claim 3, wherein: observe lens centre gripping flange (4), protection lens centre gripping flange (7) comprise a foraminiferous ring flange and a closed ring flange respectively, foraminiferous ring flange respectively with observe the rear end welded connection of pipeline (3) and nitrogen gas protective case (6), closed ring flange passes through the bolt with foraminiferous ring flange and is connected, observe lens (5) and protection lens (8) and place respectively between foraminiferous ring flange and closed ring flange, closed ring flange is the lens gland, the periphery of observing lens (5) and protection lens (8) has observation lens sealing washer (12) and protection lens sealing washer (13) respectively, observe lens centre gripping flange (4) and protection lens centre gripping flange (7) respectively will observe lens sealing washer (12) and protection lens sealing washer (13) pressure tight seal.
5. The sight glass apparatus of a hazardous chemical media delivery conduit of claim 4, wherein: the device is also provided with a plurality of supporting rib plates (15), and the plurality of supporting rib plates (15) are respectively connected between the medium circulation pipeline (1) and the nitrogen protection sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022031006.9U CN213177721U (en) | 2020-09-16 | 2020-09-16 | Sight glass device of dangerous chemical medium conveying pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022031006.9U CN213177721U (en) | 2020-09-16 | 2020-09-16 | Sight glass device of dangerous chemical medium conveying pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213177721U true CN213177721U (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022031006.9U Active CN213177721U (en) | 2020-09-16 | 2020-09-16 | Sight glass device of dangerous chemical medium conveying pipeline |
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| Country | Link |
|---|---|
| CN (1) | CN213177721U (en) |
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- 2020-09-16 CN CN202022031006.9U patent/CN213177721U/en active Active
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