CN218097877U

CN218097877U - Anti-blocking throttling device

Info

Publication number: CN218097877U
Application number: CN202221208988.7U
Authority: CN
Inventors: 王楠; 夏明强; 周绍平
Original assignee: Jiangsu Jinhuan Engineering Technology Co ltd
Current assignee: Jiangsu Jinhuan Engineering Technology Co ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-12-20
Anticipated expiration: 2032-05-18

Abstract

The utility model discloses a prevent throttling arrangement of jam belongs to throttling arrangement technical field, including pipeline and the nipple of setting on the pipeline pipe wall, the inside vertical detecting tube that is equipped with of pipeline, be equipped with full pressure hole and static pressure hole on the pipe wall of detecting tube, the detecting tube top is passed the nipple and is extended pipeline and level and be equipped with the connecting block, the inside two air flues that are equipped with of connecting block, the gas outlet of two air flues extends to the connecting block bottom and is located inside the detecting tube, the air inlet of two air flues extends to on the connecting block lateral wall and is equipped with the subassembly that admits air, the advantage of this device lies in, can dredge full pressure hole and static pressure hole on line, avoid causing the big condition of testing result deviation.

Description

Anti-blocking throttling device

Technical Field

The utility model belongs to the technical field of throttling arrangement, especially, prevent throttling arrangement of jam.

Background

The throttle device is a flow device in a fluid flowing pipeline filled with the pipeline, the throttle device is an important branch in a flow meter, an Aronia flowmeter is a typical pressure differential flowmeter, the Aronia flowmeter (also called a flute-shaped uniform velocity tube flowmeter) is a novel throttle device developed according to a pitot tube speed measurement principle, the principle is that a high-pressure distribution area is generated on the upstream side of a detection rod when the fluid flows through the detection rod, a low-pressure distribution area is generated on the downstream side, the fluid in the high-pressure distribution area enters a full-pressure cavity through all full-pressure holes and is led out through a full-pressure leading pipe after being averaged, the fluid in the low-pressure area passes through static pressure holes and is led out through a static-pressure leading pipe after being averaged in the static-pressure cavity, and then the flow of a medium can be measured through the difference between the full pressure and the static pressure measured by a pressure transmitter. In practical use, it is found that when the measured liquid or gas medium contains a small amount of impurities, the full-pressure hole and the static-pressure hole of the pipe are easily detected, which results in unstable measured flow rate and large deviation of detection results.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: an anti-clogging throttling device is provided to solve the above problems in the prior art.

The technical scheme is as follows: the utility model provides a prevent throttling arrangement of jam, includes the pipeline and sets up the nipple on the pipeline pipe wall, the inside vertical detecting tube that is equipped with of pipeline, be equipped with full pressure hole and static pressure hole on the pipe wall of detecting tube, the detecting tube top is passed the nipple and is extended pipeline and level and be equipped with the connecting block, the inside two air flues that are equipped with of connecting block, two the gas outlet of air flue extends to the connecting block bottom and is located inside the detecting tube, two the air inlet of air flue extends to on the connecting block lateral wall and is equipped with the subassembly that admits air.

Through adopting above-mentioned technical scheme, when full-pressure hole and static pressure port block up, only need carry out discontinuous gas blowing to two air flues through the subassembly that admits air, can dredge full-pressure hole and static pressure port on line to solve the problem of blockking up, avoid causing the big condition of testing result deviation.

Preferably, the air inlet assembly comprises joints respectively arranged on air inlets of two air passages, one of the joints is communicated with a main air pipe, the main air pipe is communicated with an auxiliary air pipe, one end, far away from the main air pipe, of the auxiliary air pipe is communicated with the other joint, one end, far away from a connecting block, of the main air pipe is communicated with an air pump, and the air pump is placed on the ground.

Preferably, the main air pipe is provided with an electromagnetic valve, the electromagnetic valve is electrically connected with a controller, an input end of the electromagnetic valve is communicated with the main air pipe, an output end of the electromagnetic valve is communicated with one of the joints, and an input end of the electromagnetic valve is positioned at the rear end of the communicated position of the auxiliary air pipe and the main air pipe.

Preferably, the coaxial fixed cover that is equipped with in the sense tube top outside, fixed cover top and sense tube top are located same horizontal plane, fixed cover top and connecting block bottom fixed connection, the coaxial second ring flange that is equipped with in the fixed cover bottom outside, the coaxial first ring flange that is equipped with in the nipple top outside, first ring flange and second ring flange threaded connection.

Preferably, fixed cover inner wall top is equipped with the ring channel, the inside coaxial sealing washer that is equipped with of ring channel, the inner circle and the detecting tube outside of sealing washer are inconsistent, the sealing washer top is inconsistent with the connecting block bottom.

Preferably, a total pressure pipe and a static pressure pipe are arranged in the detection pipe, two connecting pipes are arranged at the top ends of the connecting blocks, three groups of valves are arranged at the top ends of the two connecting pipes, a differential pressure transmitter is arranged at the top ends of the three groups of valves, and the total pressure pipe and the static pressure pipe penetrate through the connecting blocks and are respectively communicated with the two connecting pipes.

Has the advantages that: when the full pressure hole is blocked with the static pressure hole, only need carry out discontinuous blowing to two air flues through the subassembly that admits air, can dredge full pressure hole and static pressure hole on line to solve the problem of blockking up, avoid causing the big condition of testing result deviation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is an enlarged view of a in fig. 1 of the present invention.

The reference signs are: 1. a detection tube; 11. pressing the hole fully; 12. static pressure holes; 13. a full-pressure pipe; 14. a static pressure tube; 2. a nipple; 21. a first flange plate; 3. a second flange plate; 31. fixing a sleeve; 32. an annular groove; 33. a seal ring; 4. connecting blocks; 41. an airway; 42. a joint; 43. a main air pipe; 44. a secondary air pipe; 45. an air pump; 5. an electromagnetic valve; 51. a controller; 6. a connecting pipe; 61. three groups of valves; 62. a differential pressure transmitter; 7. a pipeline.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

The utility model provides a prevent throttling arrangement of jam, as figure 1, including pipeline 7, the nipple 2 of vertical setting on the 7 pipe walls of pipeline, 7 inside vertical detecting tubes 1 that is equipped with of pipeline, be equipped with full pressure hole 11 and static pressure hole 12 on detecting tubes 1's the pipe wall, 1 top of detecting tubes is passed nipple 2 and is extended pipeline 7, detecting tubes 1 and 2 adaptations of nipple, detecting tubes 1's top level is equipped with connecting block 4, the inside air flue 41 that is equipped with two symmetries of connecting block 4, the gas outlet of two air flues 41 extends to 4 bottoms of connecting block, the gas outlet of two air flues 41 all is located inside detecting tubes 1, the air inlet of two air flues 41 extends to on 4 lateral walls of connecting block, the air inlet of two air flues 41 is equipped with air intake assembly.

As fig. 1, when meeting the condition that full-pressure hole 11 and static pressure hole 12 block up, carry out discontinuous blowing to two air flues 41 through the subassembly that admits air this moment, during high-pressure draught got into detecting tube 1 through two air flues 41 this moment, with the jam clean up in full-pressure hole 11 and the static pressure hole 12, and then dredge full-pressure hole 11 and static pressure hole 12 on line, solve the problem of jam, avoid causing the big condition of testing result deviation.

As shown in fig. 1, the air inlet assembly includes two joints 42, the two joints 42 are respectively disposed on air inlets of two air passages 41, one of the joints 42 is connected with a main air pipe 43, the main air pipe 43 is connected with an auxiliary air pipe 44, one end of the auxiliary air pipe 44 far away from the main air pipe 43 is connected with the other joint 42, one end of the main air pipe 43 far away from the connecting block 4 is connected with an air pump 45, the air pump 45 is placed on the ground, the air pump 45 blows air to the two air passages 41 through the main air pipe 43 and the auxiliary air pipe 44, at this time, high-pressure air flows enter the detection pipe 1 through the two air passages 41, and then the full pressure hole 11 and the static pressure hole 12 are dredged.

As shown in fig. 1, the electromagnetic valve 5 is arranged on the main air pipe 43, the controller 51 is electrically connected to the electromagnetic valve 5, the input end of the electromagnetic valve 5 is connected to the main air pipe 43, the output end of the electromagnetic valve 5 is connected to one of the joints 42, the input end of the electromagnetic valve 5 is located at the rear end of the connection between the auxiliary air pipe 44 and the main air pipe 43, the controller 51 controls the electromagnetic valve 5 to open and close, and further controls the air pump 45 to blow air to the two air passages 41 discontinuously.

As shown in fig. 1, a fixed sleeve 31 is arranged on the outer side of the top end of a detection tube 1, the fixed sleeve 31 and the detection tube 1 are in the same axis, the top end of the fixed sleeve 31 and the top end of the detection tube 1 are located on the same horizontal plane, the top end of the fixed sleeve 31 is fixedly connected with the bottom end of a connecting block 4, a second flange 3 is arranged on the outer side of the bottom end of the fixed sleeve 31, the fixed sleeve 31 and the second flange 3 are in the same axis, a first flange 21 is arranged on the outer side of the top end of a nipple 2, the first flange 21 and the nipple 2 are in the same axis, the first flange 21 is in threaded connection with the second flange 3, and the arrangement is used for fixing the connecting block 4 on the top end of the detection tube 1.

As shown in fig. 2, an annular groove 32 is formed in the top end of the inner wall of the fixing sleeve 31, a sealing ring 33 is arranged inside the annular groove 32, the sealing ring 33 is annular and has the same axis as the annular groove 32, the inner ring of the sealing ring 33 is in contact with the outer side of the detection tube 1, the top end of the sealing ring 33 is in contact with the bottom end of the connecting block 4, and the sealing performance of the joint between the bottom end of the connecting block 4 and the top end of the detection rod is improved through the sealing ring 33.

As shown in fig. 1, a total pressure pipe 13 and a static pressure pipe 14 are arranged inside a detection pipe 1, two connecting pipes 6 are arranged at the top end of a connecting block 4, three groups of valves 61 are arranged at the top ends of the two connecting pipes 6, a differential pressure transmitter 62 is arranged at the top end of the three groups of valves 61, the top ends of the total pressure pipe 13 and the static pressure pipe 14 penetrate through the connecting block 4 and are respectively communicated with the two connecting pipes 6, the pressure value of a total pressure hole 11 is transmitted to the positive pressure side of the differential pressure transmitter 62 through the total pressure pipe 13, the pressure value of a static pressure hole 12 is transmitted to the negative pressure side of the differential pressure transmitter 62 through the static pressure pipe 14, and the difference between the total pressure and the static pressure measured by the differential pressure transmitter 62 at this time is used for measuring the flow of a medium.

The working principle is as follows: when meeting the condition that full-pressure hole 11 and static pressure hole 12 block up, start air pump 45 this moment, air pump 45 is blown two air flues 41 by main trachea 43 and auxiliary trachea 44, controller 51 control solenoid valve 5 is interrupted the switching simultaneously, make high-pressure draught pass through in two air flues 41 intermittent entering test tube 1, with the jam clean up in full-pressure hole 11 and the static pressure hole 12, dredge full-pressure hole 11 and static pressure hole 12, solve the problem of jam, avoid causing the big condition of testing result deviation.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be modified to perform various equivalent transformations, which all belong to the protection scope of the present invention.

Claims

1. The utility model provides a throttle device who prevents blockking up, includes pipeline (7) and nipple (2) of setting on pipeline (7) pipe wall, its characterized in that, pipeline (7) is inside vertically to be equipped with test tube (1), be equipped with full pressure hole (11) and static pressure hole (12) on the pipe wall of test tube (1), test tube (1) top is passed nipple (2) and is extended pipeline (7) and level and be equipped with connecting block (4), inside two air flue (41) of being equipped with of connecting block (4), two the gas outlet of air flue (41) extends to connecting block (4) bottom and is located inside test tube (1), two the air inlet of air flue (41) extends to on connecting block (4) lateral wall and is equipped with the air admission subassembly.

2. The anti-clogging throttling device according to claim 1, wherein the air inlet assembly comprises connectors (42) respectively arranged on the air inlets of the two air passages (41), one of the connectors (42) is communicated with a main air pipe (43), the main air pipe (43) is communicated with an auxiliary air pipe (44), one end of the auxiliary air pipe (44) far away from the main air pipe (43) is communicated with the other connector (42), one end of the main air pipe (43) far away from the connecting block (4) is communicated with an air pump (45), and the air pump (45) is placed on the ground.

3. The anti-clogging throttling device according to claim 2, wherein the main air pipe (43) is provided with an electromagnetic valve (5), the electromagnetic valve (5) is electrically connected with a controller (51), an input end of the electromagnetic valve (5) is communicated with the main air pipe (43), an output end of the electromagnetic valve (5) is communicated with one of the joints (42), and an input end of the electromagnetic valve (5) is located at the rear end of a position where the auxiliary air pipe (44) is communicated with the main air pipe (43).

4. The anti-clogging throttling device according to claim 1, wherein a fixing sleeve (31) is coaxially disposed outside the top end of the detection tube (1), the top end of the fixing sleeve (31) and the top end of the detection tube (1) are located on the same horizontal plane, the top end of the fixing sleeve (31) is fixedly connected with the bottom end of the connecting block (4), a second flange plate (3) is coaxially disposed outside the bottom end of the fixing sleeve (31), a first flange plate (21) is coaxially disposed outside the top end of the nipple (2), and the first flange plate (21) is in threaded connection with the second flange plate (3).

5. The anti-clogging throttling device according to claim 4, wherein an annular groove (32) is formed in the top end of the inner wall of the fixing sleeve (31), a sealing ring (33) is coaxially arranged inside the annular groove (32), the inner ring of the sealing ring (33) is abutted against the outer side of the detection tube (1), and the top end of the sealing ring (33) is abutted against the bottom end of the connecting block (4).

6. The anti-clogging throttling device according to claim 1, wherein a full-pressure pipe (13) and a static-pressure pipe (14) are disposed inside the detection pipe (1), two connecting pipes (6) are disposed at the top end of the connecting block (4), three sets of valves (61) are disposed at the top ends of the two connecting pipes (6), a differential pressure transmitter (62) is disposed at the top ends of the three sets of valves (61), and the top ends of the full-pressure pipe (13) and the static-pressure pipe (14) pass through the connecting block (4) and are respectively connected with the two connecting pipes (6).