CN216896375U

CN216896375U - Multipurpose pressure relief drainage type blind plate

Info

Publication number: CN216896375U
Application number: CN202220063842.1U
Authority: CN
Inventors: 闫长江; 徐乐田; 唐忠钰; 段宝兴; 张振乾; 梁峰; 李运海; 张波; 杨金花
Original assignee: Linyi Hengchang Coking Co ltd
Current assignee: Linyi Hengchang Coking Co ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-07-05
Anticipated expiration: 2032-01-11

Abstract

The utility model relates to the technical field of industrial production devices, and particularly discloses a multipurpose pressure-relief drainage type blind plate which comprises a blind plate main body (1), wherein a circumferential surface hole (3) and a sealing surface hole (2) which are communicated are arranged on the circumferential surface and the sealing surface of the blind plate main body, and the circumferential surface hole (3) and the sealing surface hole (2) are non-through holes. The sealing surface with the sealing surface holes (2) is added towards the direction of a medium inlet, after the two flanges are fastened, the pipeline is effectively plugged, and meanwhile, the pressure guide pipe (5) connected with the circumferential surface holes (3) on the circumferential surface can achieve multiple functions, so that the effects of pressure relief, drainage, parameter monitoring, air supply, freeze prevention and the like are achieved.

Description

Multipurpose pressure relief drainage type blind plate

Technical Field

The utility model relates to the technical field of industrial production devices, in particular to a multipurpose pressure-relief hydrophobic blind plate.

Background

In industrial production devices, blind plugging of pipelines is usually required according to media and process requirements, or replacement, parameter control, discharge of gas entrained liquids and the like are required for local pipelines. However, the conventional blind plate added to the original pipeline cannot meet the requirements, for example, in cold seasons in winter, the steam condensate accumulates more and more in the pipeline along with the increase of time after the blind plate is added to the steam pipeline, and the conventional blind plate has no pressure relief exhaust hole, so that the steam condensate cannot be discharged, the pipeline is frozen and the pipeline is damaged.

For example, in chemical production, a group of steam valve banks for medium-low pressure conversion are arranged in a methanol conversion boundary zone, the steam valve banks from a medium-pressure steam pipeline to a low-pressure steam pipeline are converted, a first half pipeline and a second half pipeline are required to be subjected to blind plate adding disconnection treatment according to process requirements, and accumulated water in the upper part pipeline of the blind plate after the common blind plate is added is serious, so that a water hammer phenomenon is caused, and the pipeline is frozen by internal condensed water in cold seasons in winter; if a blind plate is not added, a downstream pipeline needs to be communicated with steam, a plurality of downstream anti-freezing pouring valves need to be opened for freezing prevention, a large amount of steam is wasted, and great waste is caused.

In addition, after the blind plate is added to the gas phase medium pipeline, liquid carried in gas is separated out and accumulated in the pipeline and cannot be discharged, so that pipeline liquid impact is caused, the pipeline is damaged due to a huge water hammer effect, and the service life and the safe operation of the pipeline are seriously influenced. The blind plate is added to the pipeline, so that the tail end of the pipeline exists, the monitoring facility is installed due to no corresponding interface, the parameter (pressure, temperature and the like) monitoring equipment cannot be installed, the parameter of the whole pipeline cannot be displayed, a reliable monitoring means cannot be brought to process operation, the control cannot be timely carried out, the process adjustment cannot be performed according to the requirement, the operation failure is easily caused, and safety accidents are formed. The pipeline adds in the pipeline, and blind plate department not only forms the dead angle, can not go on because of there being not exhaust hole and exhaust pipe can not be gone on to the pipeline replacement before the blind plate when needs, can not replace the persistence medium in the pipeline completely, and the addition of blind plate does not have any meaning, forms great potential safety hazard on the contrary. After the blind plate is added under special conditions, when the medium in the pipeline needs to be supplemented with other media at the blind plate for dilution and protection, the conventional blind plate has defects because no access hole can not be used.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the problems and provides a multipurpose pressure relief hydrophobic blind plate.

The technical scheme of the utility model is as follows: the multipurpose pressure-relief hydrophobic blind plate comprises a blind plate main body and is characterized in that communicated circumferential surface holes and sealing surface holes are respectively arranged on the circumferential surface and the sealing surface of the blind plate main body, and the circumferential surface holes and the sealing surface holes are non-through holes.

Through the technical scheme, the sealing surface with the sealing surface hole is added towards the direction of the medium inlet, after the two flanges are fastened, the pipeline is effectively plugged, and meanwhile, the pressure guide discharge pipe connected with the circumferential surface hole on the circumferential surface can realize multiple functions, so that the effects of pressure relief, drainage, parameter monitoring, air supply, freezing prevention and the like are achieved.

Furthermore, an internal thread is processed on the circumferential surface hole. The internal thread is used for connecting the pressure guide discharge pipe.

Further, the diameter of the circumferential surface hole is the same as that of the sealing surface hole. The drilling diameter is the same, convenient processing, and the drilling diameter can change as required, and two bores form the pressure release discharge hole to UNICOM, and the degree of depth in sealing surface hole only need with periphery hole UNICOM can, must not be too deep.

Further, the blind end of the circumferential surface hole is communicated with the blind end of the sealing surface hole. The blind end of the circumferential surface hole is arranged inside the blind plate, the blind end of the sealing surface hole is also arranged in the blind plate, the blind ends of the two holes are communicated, the two holes are communicated at the innermost ends of the two holes, the two holes can realize the required functions without drilling too deep, and the processing procedure is saved.

Furthermore, a pressure guide pipe is connected to the circumferential surface hole. The pressure guide pipe has the function of flow guide.

Furthermore, the circumferential surface hole is connected with the pressure guide pipe in a welding or threaded connection mode. The welding is a more common way for connecting the guide pipes, and the threaded connection is that the guide pipes can be connected in a threaded connection way because the inner threads are processed on the circumferential surface holes, and the two ways are simple and easy to implement.

The utility model has the beneficial effects that:

1. after the liquid carried in the gas-phase medium in the pipeline is separated out, the liquid can be discharged in time along with a pressure guide hole and a pressure guide pipe which are formed by communicating the circumferential surface hole and the sealing surface hole, so that the liquid impact phenomenon of the pipeline is avoided;

2. the pipeline forms the pipeline end at the blind plate, can install monitoring equipment such as manometer, thermometer, etc. on the pressure guiding hole, can observe the parameter situation in the process pipeline effectively in time, carry on the adjustment process operation index in time;

3. after the blind plate is added into the pipeline, when the pipeline in front of the blind plate is replaced, the process medium in the original pipeline can be discharged in time from the pressure guide hole, no dead angle exists, and the complete replacement can be realized;

4. according to the requirement, the blind plate can be connected with a pressure guide pipe to perform operations such as supplementing other media to dilute the media in the original pipeline;

5. in cold seasons in winter, steam condensate is discharged along with the pressure guide hole in time, so that the pipeline is prevented from being frozen and damaged, and waste can be effectively reduced.

Drawings

FIGS. 1a and 1b are a front view and a left view of the appearance of a blind plate main body, respectively;

2a, 2b are respectively half-section views of a front view and a left view of the appearance of the blind plate main body;

FIG. 3 shows the manner of connecting the pressure pipe to the circumferential surface of the blind plate: fig. 3a is a partial cross-sectional view of a threaded connection and fig. 3b is an external view of a welded connection.

In the figure, 1, a blind plate body; 2. sealing the surface hole; 3. a circumferential face hole; 4. an internal thread; 5. a pressure guide pipe; 6. and (6) girth welding.

Detailed Description

As shown in figures 1a and 1b, the utility model provides a multipurpose pressure-relief drain type blind plate, which comprises a blind plate main body 1, wherein a circumferential surface hole 3 and a sealing surface hole 2 which are communicated are respectively arranged on the circumferential surface and the sealing surface of the blind plate main body 1, and the circumferential surface hole 3 and the sealing surface hole 2 are non-through holes. The sealing surface with the sealing surface hole 2 is added towards the direction of a medium inlet, after the two flanges are fastened, the pipeline is effectively plugged, and meanwhile, the pressure guide pipe 5 connected with the circumferential surface hole 3 on the circumferential surface can achieve multiple functions, and the functions of pressure relief, drainage, parameter monitoring, air supply, freezing prevention and the like are achieved.

Referring to fig. 2a, an internal thread 4 is formed in the circumferential hole 3. The internal thread 4 is used for connecting a pressure pipe 5. Referring to fig. 2b, the circumferential surface hole 3 and the sealing surface hole 2 have the same diameter. The drilling diameter is the same, convenient processing, and the drilling diameter can change as required, and two bores form the pressure release discharge hole to UNICOM, and the degree of depth in sealed face hole 2 only need with periphery hole 3 UNICOM can, must not be too deep.

Referring to fig. 1a, the blind end of the circumferential surface hole 3 is communicated with the blind end of the sealing surface hole 2. The blind end of the circumferential surface hole 3 is arranged inside the blind plate, the blind end of the sealing surface hole 2 is also arranged in the blind plate, the blind ends of the two holes are communicated, the two holes are communicated at the innermost ends of the two holes, the two holes can realize the required functions without drilling too deep, and the processing procedure is saved.

Referring to fig. 3a and 3b, the circumferential surface hole 3 may be connected to the pressure pipe 5 by welding or screwing. The welding is a more common way for connecting the guide pipes, and the threaded connection is that the guide pipes can be connected in a threaded connection way because the circumferential surface holes 3 are provided with internal threads, and the two ways are simple and easy to implement. In the case of the welding method, the pressure pipe 5 is welded to the circumferential hole 3 by welding a circumferential weld 6.

In one use example, the steam conversion main valve of our company is prevented frostbite year by year and causes the condition of huge steam waste, the use effect is excellent by adding a novel blind plate, 6 anti-freezing points are reduced, the average hourly discharge amount of each anti-freezing point is estimated according to the inverted-spraying anti-freezing discharge amount of steam in winter every year, the anti-freezing period is calculated according to 50 days (the anti-freezing valve is slightly smaller or closed in the daytime and slightly larger or regularly discharged when the valve is cooler at night), and 3600 ton of steam consumption can be estimated to be saved. The price of the steam per ton is calculated by 100 yuan, and 3600 x 100=36 ten thousand yuan can be saved each year. The method can be adopted under the similar conditions of other medium pipelines or equipment to effectively reduce the medium loss, and simultaneously play a role in preventing freezing, reduce the post anti-freezing monitoring points and greatly reduce the workload.

Claims

1. The utility model provides a multipurpose pressure release hydrophobic formula blind plate, includes blind plate main part (1), its characterized in that is equipped with the circumference hole (3) and the sealed face hole (2) of UNICOM respectively on the circumference of blind plate main part (1) and on the sealed face, and circumference hole (3) and sealed face hole (2) are the non-perforating hole.

2. The multipurpose pressure-relief hydrophobic blind plate according to claim 1, wherein the circumferential hole (3) is internally threaded.

3. The multipurpose pressure relief hydrophobic blind plate according to claim 1, characterized in that the circumferential face hole (3) and the sealing face hole (2) have the same diameter.

4. The multipurpose pressure relief hydrophobic blind according to any of claims 1 to 3, characterized in that the blind end of the circumferential face hole (3) is communicated with the blind end of the sealing face hole (2).

5. The multipurpose pressure relief hydrophobic blind plate according to claim 4, wherein the circumferential holes (3) are connected with pressure guide pipes (5).

6. The multipurpose pressure relief hydrophobic blind plate according to claim 5, wherein the circumferential hole (3) is connected with the pressure pipe (5) by welding or screwing.