CN210950816U - Pipeline detection auxiliary device - Google Patents
Pipeline detection auxiliary device Download PDFInfo
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- CN210950816U CN210950816U CN201921916637.XU CN201921916637U CN210950816U CN 210950816 U CN210950816 U CN 210950816U CN 201921916637 U CN201921916637 U CN 201921916637U CN 210950816 U CN210950816 U CN 210950816U
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Abstract
The utility model relates to a pipeline inspection auxiliary device, including a jar body, establish at jar internal with the jar body separate into the buffering diaphragm of mutually independent first cavity and second cavity, be used for installing the pressure transmitter connecting pipe with being connected of second cavity, the suction pipe of being connected with first cavity, be used for changing the biography pressure medium honeycomb duct and the first blowdown valve in the second cavity of being connected with the second cavity, establish the first valve on the honeycomb duct and establish the connector on the jar body and with first cavity intercommunication. The tank body is provided with an observation tube, the observation tube is communicated with the second cavity, the observation tube is provided with an observation window, and the free end of the observation tube inclines towards the direction close to the first cavity. The utility model is used for the pipeline detects, is the transition device between detection pipeline and the pressure transmitter, can make pressure transmitter still can stable work under low temperature state.
Description
Technical Field
The utility model belongs to the technical field of the technique that the pipeline detected and specifically relates to a pipeline inspection auxiliary device is related to.
Background
In recent years, with the continuous development of technology and the continuous improvement of environmental requirements, the cement industry has started to use waste heat boilers and other equipment to recover waste heat in the production process so as to improve the energy utilization rate.
Steam generated in the working process of a preheating boiler and the like is conveyed through a pipeline, parameters such as pressure, flow and the like of the preheating boiler need to be detected in the conveying process so as to ensure production safety, and a pressure transmitter is mostly adopted for detection in a general detection mode. The pressure transmitter needs to use water as a transition medium, and the water freezes at a low temperature state, so that the interface of the pressure transmitter is easily frozen.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a pipeline detection auxiliary device, this pipeline detection auxiliary device can make pressure transmitter still can normally work when low temperature.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a pipeline inspection assistance device comprising:
a tank body;
the buffer membrane is arranged in the tank body and divides the tank body into a first cavity and a second cavity which are mutually independent;
the connecting pipe is connected with the second cavity and used for mounting the pressure transmitter;
the pressure guiding pipe is connected with the first cavity;
the flow guide pipe and the first sewage discharge valve are both connected with the second cavity and used for replacing a pressure transmission medium in the second cavity;
the first valve is arranged on the flow guide pipe;
and the connecting port is arranged on the tank body and communicated with the first cavity.
Through adopting above-mentioned technical scheme, pressure transmitter installs on the connecting pipe, and its sense terminal stretches into inside the second cavity. And in a low-temperature state, opening the first sewage draining valve, discharging the pressure transfer medium in the second cavity, and then injecting the antifreeze solution from the diversion pipe. Under the low temperature state, the antifreeze can not freeze, still can keep in the liquid state, can avoid pressure transmitter to be frozen out.
The utility model discloses further set up to: and the second blowdown valve is connected with the first cavity.
By adopting the technical scheme, the second blow-down valve is opened at intervals, residual sewage and the like in the first cavity are discharged, the cleanliness in the first cavity can be improved, and the interference to the detection result is avoided.
The utility model discloses further set up to: an observation pipe is arranged on the tank body and is communicated with the second cavity;
and an observation window is arranged on the observation tube.
By adopting the technical scheme, the color of the antifreeze in the observation pipe can be seen through the observation window, and the addition of different types of antifreeze can be avoided during supplement.
The utility model discloses further set up to: the free end of the sight tube is inclined in a direction towards the first cavity.
By adopting the technical scheme, when the antifreezing solution or the pressure transmission medium is added, the antifreezing solution or the pressure transmission medium is filled in the observation tube under the action of gravity, so that the phenomenon that the surface of the observation tube is cracked due to uneven stress can be avoided.
The utility model discloses further set up to: an exhaust valve is arranged on the observation tube.
Through adopting above-mentioned technical scheme, its inside residual air of discharge valve can discharge, avoids observing that the pipe atress inequality leads to appearing the crack on its surface.
The utility model discloses further set up to: the exhaust valve comprises an exhaust screw in threaded connection with the observation pipe;
the vent screw extends into the interior of the sight tube.
Through adopting above-mentioned technical scheme, when still having gas in the observation pipe, unscrew the exhaust screw, will observe intraductal gas outgoing. The exhaust screw is small in size, convenient to use and low in operation difficulty, and can meet the basic use requirement.
The utility model discloses further set up to: holes are formed in the pipe wall of the flow guide pipe;
the hole is located between the pipe orifice of the draft tube and the first valve.
By adopting the technical scheme, in the process of adding the antifreeze or the pressure transfer medium, when the antifreeze or the pressure transfer medium flows out of the hole, the antifreeze or the pressure transfer medium is indicated to be filled, and at the moment, the first valve on the flow guide pipe is closed, so that residual gas at the joint of the first valve and the flow guide pipe can be avoided.
The utility model discloses further set up to: and a first heat preservation layer is arranged on the outer wall of the connecting pipe.
Through adopting above-mentioned technical scheme, first heat preservation can play effectual heat preservation effect, reduces the heat exchange of connecting pipe and external world.
The utility model discloses further set up to: and a second heat-insulating layer is arranged on the outer wall of the tank body.
Through adopting above-mentioned technical scheme, first heat preservation can play effectual heat preservation effect, reduces jar body and external heat exchange.
To sum up, the utility model discloses a beneficial technological effect does:
when the pressure transmitter is used, the pressure transmitter is arranged on the connecting pipe, and the detection end of the pressure transmitter extends into the second cavity. And in a low-temperature state, opening the first sewage draining valve, discharging the pressure transfer medium in the second cavity, and then injecting the antifreeze solution from the diversion pipe. Under the low temperature state, the antifreeze can not freeze, still can keep in the liquid state, can avoid pressure transmitter by freezing, makes it still can keep working under the low temperature state.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention.
Fig. 2 is a schematic diagram of an internal structure provided by an embodiment of the present invention.
In the figure, 11, a tank body, 12, a buffer membrane 121, a first cavity, 122, a second cavity, 13, a connecting pipe, 14, a pressure guiding pipe, 15, a flow guiding pipe, 16, a first blow-off valve, 17, a first valve, 18, a connecting port, 21, a second blow-off valve, 31, an observation pipe, 32, an observation window, 33, an exhaust valve, 331, an exhaust screw, 41, a hole, 51, a first heat preservation layer, 52 and a second heat preservation layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the utility model discloses a pipeline inspection auxiliary device, mainly by jar body 11, buffer diaphragm 12, connecting pipe 13, pressure pipe 14, honeycomb duct 15, first blowdown valve 16 and first valve 17 etc. constitute. The tank 11 is a metal tank, and a buffer membrane 12 is installed inside the metal tank, and the buffer membrane 12 divides the inside of the tank 11 into two independent cavities, namely a first cavity 121 and a second cavity 122. The first cavity 121 is communicated with the detected pipeline through the pressure guiding pipe 14 and is responsible for guiding the medium in the pipeline or guiding the medium in the pipeline back to the pipeline. The second cavity 122 serves as a transition between the buffer diaphragm 12 and the pressure transmitter, and is responsible for transmitting the deformation of the buffer diaphragm 12 to the detection end of the pressure transmitter through the pressure transmission medium therein.
The connecting pipe 13 is fixed on the tank 11 and connected to the second cavity 122 for installing a pressure transmitter, and a detection end of the pressure transmitter passes through the connecting pipe 13 and then extends into the tank 11. The honeycomb duct 15 and the first waste discharge valve 16 are both connected with the second cavity 122 and used for replacing pressure transmission media in the second cavity 122, the first waste discharge valve 16 is opened during replacement, the pressure transmission media in the second cavity 122 flows out, and new pressure transmission media are injected from the honeycomb duct 15 after the waste water completely flows out. The draft tube 15 is provided with a first valve 17 for controlling the opening and closing of the draft tube 15.
The tank body 11 is further fixed with a connecting port 18, the connecting port 18 mainly plays a role in communication, because in the actual use process, the pressure transmitters are used in pairs, the number of the tank bodies 11 is also two, after the medium in the detected pipeline flows into the first cavity 121 in one of the tank bodies 11, the medium flows into the first cavity 121 in the next tank body 11 through the connecting port 18 and the connecting pipeline, the two pressure transmitters can feed back two different pressure values at the same time, the two pressure values can feed back the pressure in the detected pipeline, and the difference value can also obtain the flow rate of the medium in the pipeline.
The principle of flow rate measurement is as follows: the fluid with certain pressure passes through a small hole with a determined area, the fluid pressure on two sides of the small hole is different, and the larger the pressure difference is, the faster the flow speed is.
In the long-time use, first cavity 121 can appear remaining, for example, rust and the impurity of aquatic etc. can influence pressure transmitter's detection precision, consequently in an embodiment, has installed a second blowoff valve 21 additional on jar body 11, and second blowoff valve 21 is connected with first cavity 121, can make the interior rust of first cavity 121 and the impurity of aquatic etc. flow out under the open mode, keeps its inside clean.
In one embodiment, an observation tube 31 is installed on the tank 11 and is communicated with the second cavity 122, and an observation window 32 is installed on the observation tube 31 to display the color of the liquid in the observation tube 31. Because the anti-freezing liquid with different brands and different added media and colors can be seen through the observation window 32, the color in the second cavity 122 can be seen, and the error is avoided.
In one embodiment, the free end of the sight tube 31 is angled toward the first cavity 121 to primarily prevent air bubbles from occurring within the sight tube 31. In a typical installation environment, the pressure transmitter is vertically installed, and the second cavity 122 is located above the first cavity 121. When the sight tube 31 is tilted towards the first cavity 121, the pressure medium can be made to flow into the free end of the sight tube 31 and then the sight tube 31 is filled.
Considering that the pressure transmitter cannot be installed in a vertical position, in one embodiment, an exhaust valve 33 is added on the observation tube 31, when the pressure transmitter is flipped, the pressure transmission medium in the second cavity 122 will first seal the connection between the exhaust valve 33 and the tank 11, which will result in residual gas in the observation tube 31, and the added exhaust valve 33 can exhaust the residual gas. In another embodiment, the exhaust valve 33 is an exhaust screw 331, which is unscrewed from the observation tube 31 during exhaust, and excess gas is exhausted from the threaded hole of the observation tube 31, and the exhaust screw 331 is installed back into place after the exhaust is completed.
In one embodiment, a hole 41 is formed in the wall of the flow conduit 15, the hole 41 is located between the opening of the flow conduit 15 and the first valve 17, and when the pressure medium is filled into the second cavity 122 through the flow conduit 15 during use, the first valve 17 is closed when the pressure medium flows out of the hole 41 to indicate that the pressure medium is full, so that gas residue at the first valve 17 can be avoided.
In one embodiment, the outer wall of the connecting pipe 13 is wrapped by a first thermal insulation layer 51, and the first thermal insulation layer 51 is made of rock wool, foam cotton or cotton, and functions to reduce the heat transfer efficiency between the connecting pipe 13 and the external connection. In another embodiment, the outer wall of the tank 11 also includes a second insulating layer 52, and the material and function of the second insulating layer 52 are the same as those of the first insulating layer 51.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. A pipeline inspection assistance device, comprising:
a tank body (11);
the buffer membrane (12) is arranged in the tank body (11) and divides the tank body (11) into a first cavity (121) and a second cavity (122) which are mutually independent;
the connecting pipe (13) is connected with the second cavity (122) and is used for installing the pressure transmitter;
a pressure guiding pipe (14) connected with the first cavity (121);
the guide pipe (15) and the first sewage draining valve (16) are connected with the second cavity (122) and are used for replacing pressure transfer media in the second cavity (122);
the first valve (17) is arranged on the flow guide pipe (15);
and a connecting port (18) which is arranged on the tank body (11) and is communicated with the first cavity (121).
2. The pipeline inspection assisting device according to claim 1, wherein: and a second blowdown valve (21) connected to the first cavity (121).
3. The pipeline inspection assisting device according to claim 1, wherein: an observation pipe (31) is arranged on the tank body (11), and the observation pipe (31) is communicated with the second cavity (122);
an observation window (32) is arranged on the observation tube (31).
4. The pipeline inspection assisting device according to claim 3, wherein: the free end of the observation tube (31) is inclined in a direction approaching the first cavity (121).
5. The pipeline inspection assisting device according to claim 3, wherein: an exhaust valve (33) is arranged on the observation tube (31).
6. The pipeline inspection assisting device according to claim 5, wherein: the exhaust valve (33) comprises an exhaust screw (331) in threaded connection with the observation tube (31);
the vent screw (331) extends into the interior of the sight tube (31).
7. The pipeline inspection assisting device according to claim 1, wherein: the wall of the draft tube (15) is provided with a hole (41);
the hole (41) is positioned between the orifice of the draft tube (15) and the first valve (17).
8. The pipeline inspection assisting device according to claim 1, wherein: and a first heat preservation layer (51) is arranged on the outer wall of the connecting pipe (13).
9. The pipeline inspection assisting device according to claim 1, wherein: and a second heat-insulating layer (52) is arranged on the outer wall of the tank body (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921916637.XU CN210950816U (en) | 2019-11-08 | 2019-11-08 | Pipeline detection auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921916637.XU CN210950816U (en) | 2019-11-08 | 2019-11-08 | Pipeline detection auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210950816U true CN210950816U (en) | 2020-07-07 |
Family
ID=71378334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921916637.XU Active CN210950816U (en) | 2019-11-08 | 2019-11-08 | Pipeline detection auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210950816U (en) |
-
2019
- 2019-11-08 CN CN201921916637.XU patent/CN210950816U/en active Active
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