CN210138759U

CN210138759U - Pipeline cleaning spray head

Info

Publication number: CN210138759U
Application number: CN201920406839.3U
Authority: CN
Inventors: 杜恒仙; 侯静刚; 石璞
Original assignee: Everbright Ecological Environment Design And Research Institute Co Ltd; Everbright Envirotech China Ltd
Current assignee: Everbright Ecological Environment Design And Research Institute Co Ltd; Everbright Envirotech China Ltd
Priority date: 2019-03-27
Filing date: 2019-03-27
Publication date: 2020-03-13
Anticipated expiration: 2029-03-27

Abstract

The utility model provides a pipeline cleaning spray head, which comprises a conical head section and a connecting section; the pipeline cleaning spray head is internally provided with a water containing cavity, and the connecting section is used for connecting a water supply pipeline to ensure that the water containing cavity is communicated with the water supply pipeline; the top end of the cone head section is provided with a top jet hole, the side wall of the cone head section is provided with a plurality of side wall jet holes, and the top jet hole and the side wall jet holes are used for communicating the water containing cavity with the outside. The utility model provides a pipeline washs shower nozzle structural design is reasonable, can effectively wash the deposit of pipeline internal surface, and the scale removal is effectual to can avoid causing chemical corrosion or mechanical damage to the pipeline inner wall.

Description

Pipeline cleaning spray head

Technical Field

The utility model relates to an industrial cleaning technical field, specifically, the utility model relates to a pipeline cleaning shower nozzle.

Background

The condenser is one of main auxiliary equipment in the production of a thermal power plant, can establish and maintain exhaust pressure at an exhaust part, and can recover a large amount of condensed water for supplying water to a boiler, so that the output and the efficiency of a unit are directly influenced by the heat exchange effect of the condenser. Generally, after a condenser operates for a period of time, mechanical mixtures, salt substances and various microorganisms in circulating cooling water are attached to the inner surface of a heat exchange tube of the condenser, and the attachment is increasingly serious when the mechanical mixtures, the salt substances and the microorganisms are used in a synergistic mode, the heat transfer of the condenser is deteriorated due to deposits in the heat exchange tube, the vacuum degree is obviously reduced, the operating efficiency of a unit is influenced, and great economic loss is caused.

Therefore, in order to ensure a certain vacuum degree of the unit, the condenser needs to be cleaned and descaled periodically in the power plant, and the normal output of the unit is ensured. At present, the commonly adopted cleaning methods are manual poking and cleaning, rubber ball cleaning, chemical cleaning, high-pressure water jet cleaning and the like, but the cleaning method has poor cleaning effect and can damage the heat exchange tube.

Therefore, it is necessary to provide a pipe cleaning nozzle to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.

In order to overcome the defects of the prior art, the utility model provides a pipeline cleaning spray head which comprises a conical head section and a connecting section; the pipeline cleaning spray head is internally provided with a water containing cavity, and the connecting section is used for connecting a water supply pipeline to ensure that the water containing cavity is communicated with the water supply pipeline; the top end of the cone head section is provided with a top jet hole, the side wall of the cone head section is provided with a plurality of side wall jet holes, and the top jet hole and the side wall jet holes are used for communicating the water containing cavity with the outside.

In one embodiment, a cylindrical section is further included between the conical section and the connecting section.

In one embodiment, the connecting section comprises a hexagonal head section and an externally threaded pipe section which are connected in sequence.

In one embodiment, the opening direction of the side wall injection hole and the water inlet direction of the water containing cavity form an acute angle.

In one embodiment, the sidewall injection holes are directed perpendicular to the sidewall of the conical section.

In one embodiment, the number of sidewall injection holes is 4.

In one embodiment, the sidewall injection holes are evenly distributed on the same circumference.

The utility model provides a pipeline washs shower nozzle structural design is reasonable, can effectively wash the deposit of pipeline internal surface, and the scale removal is effectual to can avoid causing chemical corrosion or mechanical damage to the pipeline inner wall.

Drawings

The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions of the invention, which are used to explain the principles and devices of the invention. In the drawings, there is shown in the drawings,

fig. 1A is a side view of a one-way pipe cleaning head according to an embodiment of the present invention;

fig. 1B is a side view of a pipe cleaning head in another direction according to an embodiment of the present invention;

fig. 1C is a cross-sectional view of a pipe cleaning head according to an embodiment of the present invention;

fig. 1D is a top view of a pipe cleaning head according to an embodiment of the present invention;

fig. 2 is a schematic diagram of the operation of the pipe cleaning nozzle in the pipe according to an embodiment of the present invention.

Description of the drawings:

100. pipeline cleaning spray head

101. Conical head section

102. Cylindrical section

103. Hexagonal head section

104. External thread pipe section

105. Water containing cavity

106. Top jet orifice

107. Side wall jet hole

200. Water supply pipeline

300. Heat exchange tube

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.

In order to provide a thorough understanding of the present invention, detailed steps will be set forth in the following description in order to explain the pipe cleaning spray head of the present invention. It is apparent that the practice of the invention is not limited to the specific details known to those skilled in the art. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

In order to ensure a certain vacuum degree of a unit, a condenser needs to be cleaned and descaled periodically in a power plant. However, the existing manual poking and washing, rubber ball washing, chemical washing and high-pressure water jet washing all have certain problems.

Manual poking and washing is to poke and brush the condenser pipe to and fro manually by adopting a poking bar to remove scales in the pipe, so that only soft scales and a small amount of hard scales can be removed only by manual poking and washing, the removal is incomplete, the labor intensity is high, and a satisfactory effect cannot be achieved; moreover, the heat exchange tube is seriously damaged mechanically, and the old scale which is not removed completely is used as a crystal nucleus, so that the scaling speed is accelerated.

The rubber ball cleaning adopts a mode that a rubber ball system is connected with a circulating water system in parallel, the rubber ball cleaning needs to be frequently put into use, only soft scale can be removed, and the hard scale cannot play a role.

The chemical cleaning is a process of cleaning and removing dirt on the surface of a pipeline of the condenser by chemical reaction in a chemical mode. The method is carried out by adopting a mode of establishing temporary circulation by a condenser, a cleaning pump and a circulation tank, and a medicament is added into the circulation cleaning tank, but a chemical cleaning agent has strong corrosivity on copper materials and stainless steel of the condenser.

The high-pressure water jet cleaning has a good cleaning effect, high-pressure water jet is adopted, and most of dirt in the pipe can be removed through the pipeline of the cleaned equipment. But the labor intensity is high, the descaling rate is low, the cleaning time is long, and the mechanical damage of the condenser tube caused by high-pressure cleaning is serious.

The existing cleaning spray head only has one nozzle at the head or adopts a side rotary nozzle, so that the descaling effect is poor, the failure rate of the spray head is high, and the labor intensity of workers is high.

Based on this, the embodiment of the utility model provides a pipeline cleaning nozzle, this pipeline cleaning nozzle's rationalization design, the messenger clears away the effectual of hard dirt, and the degree of consistency is unanimous, effectively prevents the mechanical damage of condenser heat exchange tube, and simple structure, does not have the corruption to condenser equipment, and extension equipment life improves the operation security, guarantees condenser condensation effect, vacuum, guarantees the operating efficiency and the normal power of unit, makes generated energy safe and reliable.

The pipeline cleaning nozzle of the present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1A, fig. 1B, fig. 1C and fig. 1D, the utility model discloses a pipeline cleaning nozzle 100 includes conical section 101 and linkage segment, wherein, pipeline cleaning nozzle is inside to be equipped with and to hold water cavity 105, the linkage segment is used for connecting water supply pipe, makes hold water cavity 105 with water supply pipe intercommunication, conical section 101 top is equipped with top jet orifice 106, be equipped with a plurality of lateral wall jet orifices 107 on the conical section 101 lateral wall, top jet orifice 106 with lateral wall jet orifice 107 will hold water cavity 105 and external world and be linked together.

As an example, the conical section 101 has a trapezoidal structure. The diameter of the top is, for example, 10mm, the diameter of the bottom is, for example, 20mm, and the height is 15 mm. The diameter of the cylindrical section 102 is equal to the diameter of the bottom of the conical section 101, and the height thereof is 4 mm. The external diameter of the externally threaded pipe section 104 matches the internal diameter of the water supply pipe to be connected, for example 14 mm. The diameter of the water containing chamber 105 is, for example, 5 mm. It will be appreciated that the above dimensions are merely exemplary and that a person skilled in the art may select the dimensions of the various parts of the pipe cleaning head according to the pipe to be cleaned, the water supply pipe to be connected, etc.

In one embodiment, a cylindrical section 102 is further included between the conical section 101 and the connecting section. Referring to fig. 2, the cylindrical section 102 has an outer diameter close to an inner diameter of the heat exchange pipe 300, and blocks water from flowing out from the operation side during a cleaning process, thereby improving a working environment.

In one embodiment, the connecting segments include a hex head segment 103 and an externally threaded pipe segment 104. When in connection, the external thread pipe section is connected with the internal thread of the water supply pipeline and can be fastened by adopting a flat nut, so that the spray head is prevented from loosening due to vibration in the using process.

It should be noted that, in this embodiment, the cleaning reagent provided by the water supply pipeline is water, so as to avoid damage of the chemical reagent along with the inner wall of the pipeline. However, the water supply pipeline is not limited to supplying pure water, and other cleaning agents may be supplied.

As shown in fig. 1C, the opening direction of the sidewall injection hole 107 and the water inlet direction of the water containing cavity 105 form an acute angle, that is, the angle between the opening direction of the top injection hole 106 and the opening direction of the sidewall injection hole 107 is an acute angle, so that the water flow emitted from the sidewall injection hole 107 and the inner wall of the pipeline form an oblique angle, and dirt attached to the wall surface is easily cleaned. Further, the opening direction of the side wall injection hole may be set perpendicular to the side wall of the cone section. The side wall spray holes 107 have a clearance from the inner wall of the pipe to provide sufficient atomization of the effluent.

The side wall of the cone section 101 is provided with a plurality of side wall injection holes 107 to cover the entire circumference, ensuring no cleaning dead angle. The number of the side wall injection holes 107 is 3 or more, in this embodiment, as shown in fig. 1D, the number of the side wall injection holes 107 is, for example, 4, and the side wall injection holes 107 are uniformly distributed on the same circumference, so that the exiting water flow uniformly covers the inner wall of the pipe.

As shown in fig. 2, for example, when the pipe cleaning nozzle 100 is used for cleaning a heat exchange pipe of a condenser, when the pipe cleaning nozzle operates in the heat exchange pipe 300, the pipe cleaning nozzle is connected to the water supply pipe 200 through a connecting section, the water discharged from the top spraying hole can remove dirt blocking the heat exchange pipe 300 and push the sewage out of the heat exchange pipe 300, and the water discharged from the side spraying hole forms an oblique angle with the inner wall of the heat exchange pipe, so that dirt attached to the wall surface can be easily cleaned.

The embodiment of the utility model provides a pipeline washs shower nozzle has following advantage:

1. the effect of removing the hard scale is good, the aim of thoroughly removing the dirt is achieved, the descaling uniformity is consistent, and the effect is good;

2. the cleaning time of the condenser is short, and the cleaning time is short and the process is simple because the main components of the dirt substances formed by the heat exchange tubes of the condenser are carbonate and sludge and a fixed porous pipeline cleaning nozzle cleaning method is applied;

3. can avoid the corrosion of the residual dirt of the heat exchange tube of the condenser, the incrustation scale in the heat exchange tube of the condenser can not only cause the corrosion, but also aggravate the dezincification and the pitting corrosion of the brass heat exchange tube. The descaling rate of rubber ball cleaning, manual poking cleaning, chemical cleaning, high-pressure water jet cleaning and the like in the condenser cleaning method can only reach 60-80%, residual dirt still forms a blocked local concentration area because the residual dirt is still deposited in the condenser pipe, the heat exchange pipe is continuously corroded, the inner surface of the heat exchange pipe is not smooth after the heat exchange pipe is scaled, and the scaling speed is accelerated in operation; when the pipeline cleaning spray head provided by the embodiment of the utility model is used for cleaning, the corrosion of residual dirt on the heat exchange pipe after the condenser is cleaned can be avoided;

4. the condenser is cleaned by adopting mechanical methods such as motor tools and the like, the biggest defect is that the inner wall of the condenser tube is easy to damage, the inner wall of the heat exchange tube has the defect of mechanical scratches to different degrees, crack cores formed by corrosion are easy to generate at the defects and are continuously expanded to the inside, so that the heat exchange tube of the condenser is damaged, and the pipeline cleaning nozzle can effectively prevent the mechanical damage of the heat exchange tube of the condenser when being cleaned;

5. no chemical detergent is needed, and the corrosion to condenser equipment is avoided.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "disposed" and the like, as used herein, may refer to one element being directly attached to another element or one element being attached to another element through intervening elements. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A pipe cleaning sprinkler, comprising: a cone section and a connecting section;

the pipeline cleaning spray head is internally provided with a water containing cavity, and the connecting section is used for connecting a water supply pipeline to ensure that the water containing cavity is communicated with the water supply pipeline;

the top end of the cone head section is provided with a top jet hole, the side wall of the cone head section is provided with a plurality of side wall jet holes, and the top jet hole and the side wall jet holes are used for communicating the water containing cavity with the outside.

2. The pipe cleaning sprinkler head of claim 1, further comprising a cylindrical section between the cone section and the connecting section.

3. The pipe cleaning sprinkler according to claim 1, wherein the connecting segment includes a hex head segment and an externally threaded pipe segment connected in series.

4. The pipe cleaning sprinkler according to claim 1, wherein the opening direction of the side wall injection holes forms an acute angle with the water inlet direction of the water containing chamber.

5. The pipe cleaning sprinkler according to claim 4, wherein the sidewall spray holes are oriented perpendicular to the sidewall of the cone segment.

6. The pipe cleaning spray head of claim 1 wherein the number of sidewall spray holes is 4.

7. The pipe cleaning sprinkler according to claim 6, wherein the sidewall spray holes are evenly distributed about a common circumference.