CN212252572U

CN212252572U - Cut-off device for fixed-row pipeline

Info

Publication number: CN212252572U
Application number: CN202020354279.4U
Authority: CN
Inventors: 陈胜利; 袁帅; 夏博; 王康; 陈海波
Original assignee: KARAMAY XINKEAO PETROLEUM TECHNOLOGICAL CO Ltd
Current assignee: KARAMAY XINKEAO PETROLEUM TECHNOLOGICAL CO Ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-12-29
Anticipated expiration: 2030-03-19

Abstract

The utility model relates to a surely arrange the pipeline and cut off technical field, a surely arrange pipeline cut-off equipment, it includes surely arrange the house steward, glib three-way outer tube, glib and end cap, fixed mounting has the total valve of row surely on deciding the house steward, glib three-way outer tube is equipped with the left outlet of mutual intercommunication, right side export and export down, decide the house steward export and the fixed intercommunication of glib three-way outer tube left side export, the inside fixed mounting of glib three-way outer tube left side export has glib talker, glib three-way outer tube right side export fixed mounting has the end cap, the fixed intercommunication of export has first blowdown pipeline under the glib three-way outer tube, decide to arrange on the house steward between total valve and the glib three-way outer tube fixed intercommunication have the second blowdown pipeline, fixed mounting has. The utility model has the advantages of reasonable and compact structure, convenient to use through the glib talker, realizes carrying out the current-limiting step-down to deciding even drainage, has safety, laborsaving, simple and convenient, efficient characteristics.

Description

Cut-off device for fixed-row pipeline

Technical Field

The utility model relates to a surely arrange the pipeline technical field that dams is a surely arrange pipeline cut-off equipment.

Background

For large coal-fired boilers of the types such as coal-fired boilers of thermal power plants, circulating fluidized bed boilers of heavy oil thermal recovery steam injection stations of oil fields and the like, the fixed-continuous drainage sewage is designed with a special flash tank for decompression and expansion and then directly recycled or discharged, the manufacturing cost and the cost are high, the coal-fired boiler with the type of UG-150/9.8-M9 in the prior art has no fixed-drainage flash tank, the fixed-continuous drainage sewage cannot be decompressed, and high-pressure water vapor is directly discharged from a fixed-drainage pipeline to a fixed-drainage collection box and then to a sewage discharge pipeline. The fixed-discharge valve group sets up a fixed-discharge main valve in fixed-discharge pipeline elbow department because of pressure is high, be provided with the fixed orifice plate that dams on the fixed-discharge pipeline behind the fixed-discharge main valve, the water that will decide the row area is pressed dams the step-down, converge into non-pressure sewage pipes again, because the fixed-discharge is daily periodic work, lead to damming the orifice plate and often appear dirty stifled, arrange surely through the bypass, and do not have the step-down and can lead to sewage pipes to appear the water hammer phenomenon, it is great to the pipeline damage, decide whether even arranging, influence the quality of water, thereby influence the normal operating of boiler.

Disclosure of Invention

The utility model provides a surely arrange pipeline cut-off equipment has overcome above-mentioned prior art not enough, and it can effectively solve the fixed orifice plate that dams that prior art set up and dams the dirty stifled and influence quality of water that exists, can also solve the sewage pipes who leads to surely arrange through the bypass and receive the water hammer, the problem of damage pipeline.

The technical scheme of the utility model is realized through following measure: the utility model provides a fixed-row pipeline cut-off equipment, including the fixed-row header pipe, glib three-way outer tube, glib and end cap, fixed mounting has the fixed-row main valve on the fixed-row header pipe, glib three-way outer tube is equipped with the left exit of mutual intercommunication, right side export and export down, the fixed intercommunication of the fixed-row header pipe export and the fixed intercommunication of glib three-way outer tube left side export, the inside fixed mounting of glib three-way outer tube left side export has the glib, glib three-way outer tube right side export fixed mounting has the end cap, the fixed intercommunication of export has first blowdown pipeline under the glib three-way outer tube, fixed intercommunication has the second blowdown pipeline on the fixed-row header pipe between fixed-row main valve and the glib three.

The following are further optimization or/and improvement of the technical scheme of the utility model:

the inner thread is arranged inside the left outlet of the oil nozzle three-way outer tube, the outer thread is arranged outside the oil nozzle, and the oil nozzle is fixedly installed on the inner side of the left outlet of the oil nozzle three-way outer tube through threaded connection.

The inner diameter of the outer pipe of the oil nozzle tee joint on the right of the thread section at the left outlet of the outer pipe of the oil nozzle tee joint is larger than the inner diameter of the thread section at the left outlet of the outer pipe of the oil nozzle tee joint.

The utility model has the advantages of reasonable and compact structure, high durability and convenient use, it is through setting up the glib three-way outer tube that has the glib talker behind the row header pipe surely, realize carrying out the current-limiting step-down to deciding even drainage, can be under the condition that does not influence boiler normal operating, change glib talker in short time, the cost is reduced, time has been practiced thrift, can solve the dirt that the fixed orifice plate that dams that prior art adopted again caused stifled and influence quality of water effectively, the sewage pipes who avoids the bypass row-fixing to lead to receives the water hammer, the problem of damage pipeline. The utility model has the characteristics of safety, laborsaving, simple and convenient, efficient.

Drawings

Fig. 1 is a schematic partial sectional structure view of the preferred embodiment of the present invention.

The codes in the figures are respectively: the device comprises a fixed-row main pipe 1, a fixed-row main valve 2, a choke three-way outer pipe 3, a choke 4, a choke plug 5, a first sewage discharge pipeline 6, a second sewage discharge pipeline 7 and a valve 8.

Detailed Description

The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.

In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of fig. 1 of the specification.

The invention will be further described with reference to the following examples and drawings:

as shown in the attached drawing 1, the cut-off device for the fixed-row pipeline comprises a fixed-row header pipe 1 and a choke tee outer pipe 3, a fixed-row header valve 2 is fixedly mounted on the fixed-row header pipe 1, the choke tee outer pipe 3 is provided with a left outlet which is communicated with each other, a right outlet and a lower outlet, the outlet of the fixed-row header pipe 1 is fixedly communicated with the outlet of the choke tee outer pipe 3, a choke 4 is fixedly mounted inside the outlet of the choke tee outer pipe 3, a plug 5 is fixedly mounted at the right outlet of the choke tee outer pipe 3, a first sewage discharge pipeline 6 is fixedly communicated with the outlet of the choke tee outer pipe 3, a second sewage discharge pipeline 7 is fixedly communicated with the fixed-row header pipe 1 between the fixed-row header valve 2 and the choke tee outer pipe 3, and a valve 8 is fixedly mounted on the.

The utility model discloses a set up glib three-way outer tube 3 that has glib talker 4 behind row header pipe 1 surely, realize carrying out the current-limiting step-down to deciding even drainage sewage, can be under the condition that does not influence boiler normal operating, change glib talker 4 in short time, the cost is reduced, time is saved, the fixed dirt that dams the orifice plate caused that can solve prior art adoption again effectively blocks up and influences quality of water, the sewage pipes who avoids the bypass to decide to arrange and lead to receive the water hammer, the problem of damage pipeline.

The utility model discloses can be according to the flow and the pressure condition of surely arranging the blowdown water, can select to set up glib talker 4 of different aperture sizes in the export of glib talker three-way outer tube 3 left, avoided appearing the pipeline because of the pressure release and received the phenomenon of water attack.

The utility model discloses in the practical application process, set up valve 8 more than 1 at least on second sewage pipes 7, for dismantling, change glib talker 4 provides the safety guarantee. Before changing glib 4, need close row's main valve 2 surely, stop row's operation surely, after carrying out the pressure release by valve 8 with the water in row's house steward 1 surely, discharge into the irrigation canals and ditches through second sewage pipes 7 again, after the water in row's house steward 1 surely passes through valve 8 pressure release discharges, just can dismantle the end cap 5 of the 3 right exports of glib tee bend outer tube, dismantle, change and clean glib 4.

The fixed-discharge main valve 2 adopts a common valve which is known in the prior art; the outer tube 3 and the plug 5 of the oil nozzle tee joint both adopt the common known outer tube and plug of the oil nozzle tee joint; the oil nozzle 4 adopts an oil nozzle with the aperture of 2mm, 3mm and 5mm or the prior known common oil nozzle; the valve 8 adopts a DN20 primary needle valve, a DN20 secondary needle valve or a valve commonly known in the prior art.

The fixed-discharge pipeline cut-off device can be further optimized or/and improved according to the actual requirement:

as shown in the attached figure 1, an internal thread is arranged inside a left outlet of the nozzle tee outer tube 3, an external thread is arranged outside the nozzle 4, and the nozzle 4 is fixedly installed on the inner side of the left outlet of the nozzle tee outer tube 3 through threaded connection.

As shown in attached figure 1, the inner diameter of the nipple tee outer tube 3 on the right of the thread section at the left outlet of the nipple tee outer tube 3 is larger than the inner diameter of the thread section at the left outlet of the nipple tee outer tube 3.

The change of glib 4 stops the row's operation of deciding earlier, closes row's of deciding main valve 2, opens valve 8, and the ditch is discharged into through second sewage pipes 7 to the water in arranging main pipe 1 surely, and after 8 bottom temperature drops at valve, lift down the end cap 5 of the 3 right exports of glib tee bend outer tube 3, adopts the extracting tool who changes glib 4 to rotate the inside glib 4 of the 3 left exports of glib tee bend outer tube, takes out glib 4 soon and changes and wash. The utility model discloses the process of installation, dismantlement glib, labour saving and time saving need not almost to maintain, can be in the normal life of boiler sustainable use.

Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.

The utility model discloses best embodiment's use: the constant-discharge sewage discharged by the boiler and having the pressure of 7MPa to 8MPa flows into the oil nozzle three-way outer pipe 3 from the sewage header pipe 1, and is discharged from the first sewage discharge pipeline 6 after being subjected to flow-limiting and pressure-reducing through the oil nozzle 4 inside the left outlet of the oil nozzle three-way outer pipe 3.

Claims

1. The utility model provides a surely arrange pipeline cut-off equipment, its characterized in that is including deciding the row header pipe, glib tee bend outer tube, glib and end cap, fixed mounting has row's total valve surely on deciding the row header pipe, glib tee bend outer tube is equipped with the left exit of mutual intercommunication, right side export and export down, decide the fixed intercommunication of row header pipe export and glib tee bend outer tube left side export, the inside fixed mounting of glib tee bend outer tube left side export has the glib, glib tee bend outer tube right side export fixed mounting has the end cap, the fixed intercommunication of export has first blowdown pipeline under the glib tee bend outer tube, decide to arrange on the row header pipe fixed intercommunication between total valve and the glib tee bend outer tube and have second blowdown pipeline, fixed mounting has the valve on the second blowdown pipeline.

2. The intercepting device of a fixed line according to claim 1, wherein an internal thread is arranged inside the left outlet of the outer tube of the nozzle tee, an external thread is arranged outside the nozzle, and the nozzle is fixedly installed inside the left outlet of the outer tube of the nozzle tee through threaded connection.

3. The shut-off device for a fixed-displacement pipeline according to claim 2, wherein the inner diameter of the outer tube of the choke tee at the right side of the threaded section at the left outlet of the outer tube of the choke tee is larger than the inner diameter of the threaded section at the left outlet of the outer tube of the choke tee.