CN216770329U - Cavitation cleaning nozzle for heat transfer pipe of condenser - Google Patents
Cavitation cleaning nozzle for heat transfer pipe of condenser Download PDFInfo
- Publication number
- CN216770329U CN216770329U CN202123314411.2U CN202123314411U CN216770329U CN 216770329 U CN216770329 U CN 216770329U CN 202123314411 U CN202123314411 U CN 202123314411U CN 216770329 U CN216770329 U CN 216770329U
- Authority
- CN
- China
- Prior art keywords
- pipe
- heat transfer
- main transmission
- condenser
- cavitation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Cleaning By Liquid Or Steam (AREA)
Abstract
The utility model discloses a cavitation cleaning nozzle for a heat transfer pipe of a condenser, which is characterized by comprising the following components: the inner cavity of the main transmission pipe is a mixed suction channel, a first connecting flange is fixedly arranged on the outer side face of the left end of the main transmission pipe, a plurality of strip-shaped sliding grooves are formed in the inner side face of the left end of the main transmission pipe, sliding blocks are arranged in each sliding groove in a matched sliding mode, each sliding block is fixedly arranged on the outer side face of a built-in ring arranged in the main transmission pipe, and a plurality of shunting elastic sheets are circumferentially arrayed on the inner wall of the built-in ring. The device disclosed by the utility model utilizes high-pressure water jet formed by mixing high-pressure water and low-pressure water to perform online cleaning on the inner wall of the heat transfer pipe, the cavitation spray head can ensure the cleaning effect, a rigid device is not required to enter the heat transfer pipe of the condenser, the device belongs to the pollution-free and purely physical condenser online cleaning technology, and the energy-saving effect is obvious.
Description
Technical Field
The utility model relates to the technical field of cleaning nozzles, in particular to a cavitation cleaning nozzle for a heat transfer pipe of a condenser.
Background
The condenser is the core heat exchange equipment of a power plant, plays a role of a cold source in the thermodynamic cycle of the whole turboset, and the quality of the working performance of the condenser directly influences the power generation efficiency and the power generation coal consumption rate of the power plant; as a surface heat exchanger, the condenser has small diameter and large quantity, the heat transfer pipe of the condenser is externally provided with steam and internally provided with cooling water, salt contained in the cooling water is continuously separated out by heating in the heat exchange process, and scale is formed and attached to the inner pipe wall of the heat transfer pipe; the scaling on the inner wall of the condenser can not only worsen the vacuum, increase the coal consumption of a power plant and reduce the working efficiency and the economy of a generating set, but also cause the corrosion of a heat transfer pipe, so that the heat transfer pipe is broken and perforated, the service life of a pipeline is seriously influenced, and potential safety hazards are caused; therefore, in order to ensure the safe and efficient operation of the condenser and save energy and capital, a correct descaling technology must be selected to timely and effectively remove dirt on the inner wall of the cooling pipeline.
At present, three types of online cleaning methods for cleaning a heat transfer pipeline of a condenser are mainly adopted, including a robot chemical cleaning technology in the heat transfer pipeline of the condenser, a high-pressure water spray cleaning technology of a robot outside the heat transfer pipeline of the condenser and a high-pressure water jet cleaning technology of the robot in the heat transfer pipeline of the condenser; the first method belongs to chemical cleaning and causes some pollution problems; the latter two methods belong to the physical cleaning method of high-pressure water jet, wherein the former method utilizes high-pressure water spray to clean outside the pipe, the efficiency of the former method is limited by the huge viscosity of underwater fluid, so that the energy attenuation of the water jet is rapid, and the cleaning effect on the inner wall surface of the pipeline of the condenser is very strong; the last cleaning method is to send the cleaning robot into the heat exchanger tube and clean with high pressure water jet. Although the technology can achieve a better cleaning effect, the cleaning spray head must be conveyed into the heat transfer pipe in the cleaning process, so that potential safety hazards such as blockage and even pipe explosion of the cleaning spray head in the pipe exist.
The cavitation jet refers to that the local pressure of the liquid is lower than the saturated vapor pressure of the liquid to generate gasification to form cavitation bubbles, and the cavitation bubbles can generate high temperature, high pressure and micro-jet at the moment of collapsing, along with complex physical chemical and electrochemical reactions; in the prior art, the cavitation nozzle manufactured by adopting the principle has the advantages of high efficiency, convenient use and the like in the aspect of cleaning; in order to optimize and improve the latter two physical cleaning methods belonging to high-pressure water jet, a cavitation jet principle is utilized, and a cavitation cleaning nozzle for a heat transfer pipe of a condenser is necessary to greatly solve the problem of too fast attenuation of jet energy caused by water viscosity in a submerged jet state.
SUMMERY OF THE UTILITY MODEL
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a condenser heat-transfer pipe cavitation cleaning shower nozzle which characterized in that, it includes:
the inner cavity of the main transmission pipe is provided with a mixed suction channel, a first connecting flange is fixedly arranged on the outer side surface of the left end of the main transmission pipe, a plurality of strip-shaped sliding grooves are formed in the inner side surface of the left end of the main transmission pipe, sliding blocks are arranged in each sliding groove in a matched sliding mode, each sliding block is fixedly arranged on the outer side surface of a built-in ring arranged in the main transmission pipe, and a plurality of shunting elastic sheets are circumferentially arrayed on the inner wall of the built-in ring;
the low-pressure access pipe is fixedly arranged on the outer side surface of the middle part of the main transmission pipe, the inner cavity of the low-pressure access pipe is arranged as a low-pressure channel, and the low-pressure channel is communicated with the mixed suction channel;
the inner cavity of the high-pressure access pipe is provided with a high-pressure channel, the outer side surface of the right end of the high-pressure access pipe is fixedly provided with a second connecting flange, and the second connecting flange is fixedly connected with the first connecting flange by bolts, so that the high-pressure channel is communicated with the mixed suction channel;
and the cavitation nozzle is in threaded connection with the right port of the main transmission pipe.
Further, as preferred, the reposition of redundant personnel shell fragment includes fixed block and shell fragment, the one end of fixed block is fixed set up in on the inner wall of built-in ring, the shell fragment that the other end fixedly connected with slope of fixed block set up.
Further, preferably, the inclination angle of the elastic sheet is set to be 5-15 degrees.
Preferably, the spring plate is made of spring steel.
Preferably, a spring is connected between the back surface of the elastic piece and the inner wall of the built-in ring.
Preferably, a rubber sealing ring is arranged between the first connecting flange and the second connecting flange.
Further, it is preferable that the cavitation nozzle is provided in a tapered shape.
By adopting the technology, compared with the prior art, the utility model has the following beneficial effects: the device disclosed by the utility model utilizes high-pressure water jet formed by mixing high-pressure water and low-pressure water to perform online cleaning on the inner wall of the heat transfer pipe, the cavitation spray head can ensure the cleaning effect, a rigid device is not required to enter the heat transfer pipe of the condenser, the device belongs to the pollution-free and purely physical condenser online cleaning technology, and the energy-saving effect is obvious.
Drawings
FIG. 1 is a sectional view of a cavitation cleaning nozzle for a heat transfer tube of a condenser;
FIG. 2 is a schematic cross-sectional structure diagram of a main transmission pipe in a cavitation cleaning nozzle for a heat transfer pipe of a condenser;
fig. 3 is an enlarged schematic view of a portion a of fig. 1.
In the figure: 1. a low-pressure access pipe; 2. a mixing suction channel; 3. a cavitation nozzle; 4. a main transmission pipe; 401. a chute; 5. a bolt; 6. a high pressure channel; 7. a high pressure access pipe; 8. a low pressure channel; 9. a shunting elastic sheet; 901. a fixed block; 902. a spring plate; 903. a spring; 10. a built-in ring; 11. a slide block.
Detailed Description
The technical solution of the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Example (b): referring to fig. 1-3, the present invention provides a technical solution: a cavitation cleaning nozzle for a heat transfer pipe of a condenser comprises:
the device comprises a main transmission pipe 4, wherein an inner cavity of the main transmission pipe 4 is provided with a mixed suction channel 2, the outer side surface of the left end of the main transmission pipe 4 is fixedly provided with a first connecting flange, the inner side surface of the left end of the main transmission pipe 4 is provided with a plurality of strip-shaped sliding grooves 401, each sliding groove 401 is internally provided with a sliding block 11 in a matching sliding manner, each sliding block 11 is fixed on the outer side surface of a built-in ring 10 arranged in the main transmission pipe 4, and the inner wall of the built-in ring 10 is circumferentially arrayed with a plurality of shunting elastic sheets 9; specifically, the flow dividing elastic sheet 9 can perform flow dividing collision on the high-pressure water flow, so that the collision area between the high-pressure water flow and the low-pressure water flow is increased, and the cavitation effect of the water flow is improved;
the low-pressure connecting pipe 1 is fixedly arranged on the outer side surface of the middle part of the main transmission pipe 4, the inner cavity of the low-pressure connecting pipe 1 is provided with a low-pressure channel 8, and the low-pressure channel 8 is communicated with the mixed suction channel 2;
the high-pressure suction pipe comprises a high-pressure access pipe 7, wherein the inner cavity of the high-pressure access pipe 7 is provided with a high-pressure channel 6, the outer side surface of the right end of the high-pressure access pipe 7 is fixedly provided with a second connecting flange, and the second connecting flange is fixedly connected with the first connecting flange by adopting a bolt 5, so that the high-pressure channel 6 is communicated with the mixed suction channel 2; specifically, the right end face of the high-pressure access pipe 7 can plug the leftmost end of the sliding groove 401, so that the built-in ring 10 is convenient to mount and dismount;
and the cavitation nozzle 3 is in threaded connection with the right port of the main transmission pipe 4.
In this embodiment, the shunt elastic piece 9 includes a fixing block 901 and an elastic piece 902, one end of the fixing block 901 is fixedly disposed on the inner wall of the built-in ring 10, and the other end of the fixing block 901 is fixedly connected to the elastic piece 902 disposed obliquely.
In this embodiment, the inclination angle of the elastic piece 902 is set to 5 to 15 degrees.
In this embodiment, the elastic sheet 902 is made of spring steel.
In this embodiment, be connected with spring 903 between the back of shell fragment 902 and the inner wall of built-in ring 10, it is specific, spring 903 sets up to stainless steel, and it can assist shell fragment 902 to resume the normal position, prevents that shell fragment 902 from taking place to warp because of receiving the clash of long-time high-pressure rivers, influences the reposition of redundant personnel effect.
In this embodiment, a rubber sealing ring is arranged between the first connecting flange and the second connecting flange.
In the present embodiment, the cavitation nozzle 3 is provided in a tapered shape.
When concrete implementation, low pressure water gets into by low pressure channel 8, rivers that come out from low pressure channel 8 melt into high pressure water through mixing suction channel 2, mix suction channel 2 exit and be connected through screw thread and conical cavitation nozzle 3, thereby produce the micro-bubble, the energy exchange takes place in the time of the utmost point with the inside high-pressure jet of cavitation nozzle 3 for the bubble of production, finally advance with equal speed, when the efflux is mingled with the bubble through the inside shrink section of cavitation nozzle 3, because conical cavitation nozzle 3 inner area reduces gradually, its internal pressure increases, the bubble volume is compressed, and when the efflux is through the export section blowout, because external pressure reduces suddenly, the bubble takes place to break out, thereby release a large amount of energy, improve the cleaning performance to the heat transfer pipe inner wall greatly.
The working process of the device for cleaning the heat transfer pipe of the condenser is as follows:
a. the robot positioning system positions the pipe orifice of a heat transfer pipe of the condenser;
b. the mechanical propelling device pushes the cleaning mechanism to move on the slide rail, so that the cavitation nozzle is butted with the opening of the heat transfer pipe;
c. opening a high-pressure water valve, injecting high-pressure water into a high-pressure channel of the cavitation nozzle, simultaneously opening a low-pressure water valve, and injecting low-pressure water into a low-pressure channel;
d. mixing high-pressure water and low-pressure water in a mixing suction channel to form cavitation water jet;
e. starting the jet of the cleaning cavitation nozzle, starting physical cleaning of the inner wall of the heat transfer pipe, and continuously mixing high-pressure water and low-pressure water during cleaning and spraying the mixture into the heat transfer pipe of the condenser to form stable cavitation water jet;
f. after one heat transfer pipe is cleaned, the robot positioning system positions the next heat transfer pipe for cleaning, and the steps are repeated in this way, so that the whole condenser is cleaned on line.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides a condenser heat-transfer pipe cavitation cleaning shower nozzle which characterized in that, it includes:
the device comprises a main transmission pipe (4), wherein an inner cavity of the main transmission pipe (4) is provided with a mixed suction channel (2), the outer side surface of the left end of the main transmission pipe (4) is fixedly provided with a first connecting flange, the inner side surface of the left end of the main transmission pipe (4) is provided with a plurality of strip-shaped sliding grooves (401), each sliding groove (401) is internally provided with a sliding block (11) in a matching and sliding manner, each sliding block (11) is fixed on the outer side surface of a built-in ring (10) arranged in the main transmission pipe (4), and the inner wall of the built-in ring (10) is circumferentially arrayed with a plurality of shunting elastic sheets (9);
the low-pressure access pipe (1) is fixedly arranged on the outer side surface of the middle part of the main transmission pipe (4), the inner cavity of the low-pressure access pipe (1) is arranged to be a low-pressure channel (8), and the low-pressure channel (8) is communicated with the mixed suction channel (2);
the high-pressure suction device comprises a high-pressure access pipe (7), wherein the inner cavity of the high-pressure access pipe (7) is provided with a high-pressure channel (6), the outer side surface of the right end of the high-pressure access pipe (7) is fixedly provided with a second connecting flange, and the second connecting flange is fixedly connected with the first connecting flange by bolts (5), so that the high-pressure channel (6) is communicated with the mixed suction channel (2);
the cavitation nozzle (3) is in threaded connection with the right port of the main transmission pipe (4).
2. The cavitation cleaning nozzle for the heat transfer pipe of the condenser according to claim 1, characterized in that: the shunt elastic piece (9) comprises a fixing block (901) and an elastic piece (902), one end of the fixing block (901) is fixedly arranged on the inner wall of the built-in ring (10), and the other end of the fixing block (901) is fixedly connected with the elastic piece (902) which is obliquely arranged.
3. The cavitation cleaning nozzle for the heat transfer pipe of the condenser according to claim 2, characterized in that: the inclination angle of the elastic sheet (902) is set to be 5-15 degrees.
4. The cavitation cleaning nozzle for the heat transfer pipe of the condenser according to claim 3, characterized in that: the elastic sheet (902) is made of spring steel.
5. The cavitation cleaning nozzle for the heat transfer pipe of the condenser according to claim 2, characterized in that: and a spring (903) is connected between the back surface of the elastic sheet (902) and the inner wall of the built-in ring (10).
6. The condenser heat transfer pipe cavitation cleaning spray head of claim 1, characterized in that: and a rubber sealing ring is arranged between the first connecting flange and the second connecting flange.
7. The cavitation cleaning nozzle for the heat transfer pipe of the condenser according to claim 1, characterized in that: the cavitation nozzle (3) is conical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123314411.2U CN216770329U (en) | 2021-12-27 | 2021-12-27 | Cavitation cleaning nozzle for heat transfer pipe of condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123314411.2U CN216770329U (en) | 2021-12-27 | 2021-12-27 | Cavitation cleaning nozzle for heat transfer pipe of condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216770329U true CN216770329U (en) | 2022-06-17 |
Family
ID=81969007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123314411.2U Active CN216770329U (en) | 2021-12-27 | 2021-12-27 | Cavitation cleaning nozzle for heat transfer pipe of condenser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216770329U (en) |
-
2021
- 2021-12-27 CN CN202123314411.2U patent/CN216770329U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102401609B (en) | Online cleaning device for heat exchange tube of condenser | |
| CN216770329U (en) | Cavitation cleaning nozzle for heat transfer pipe of condenser | |
| CN202361883U (en) | Online cleaning device for heat exchange tube of condenser | |
| CN2928287Y (en) | Forced passing through water cooling system for stick and wire material | |
| CN204478915U (en) | A kind of oblique nozzle transmission device being applicable to triangular form AP1000 evaporimeter | |
| CN109654938A (en) | A kind of the condenser on-line cleaning device and cleaning method of supercavity high-pressure water jet | |
| CN103820169B (en) | A kind of combined type height temperature rough gas cooling purifying device and method | |
| CN202304587U (en) | Multi-tube pass shell and tube heat exchange equipment employing high-pressure contaminant sluicing | |
| CN114682054A (en) | Melamine urea washing tower | |
| CN204061355U (en) | A kind of environment protection type multi-path water jet air extractor | |
| CN201184754Y (en) | Mixing heat exchanger capable of eliminating noises and vibration | |
| CN217535512U (en) | Ternary anode material precursor waste water ammonia recovery device | |
| CN220791618U (en) | Injection device for low-temperature waste heat recovery | |
| CN212899180U (en) | Connecting elbow for steam jet pump | |
| CN210892859U (en) | Heat exchange system for mine | |
| CN219401483U (en) | Accident water nozzle cleaning device | |
| CN219494990U (en) | Descaling device for condenser of power plant | |
| CN220624993U (en) | Heat exchanger of high-efficient heat transfer | |
| CN218349273U (en) | Air compressor waste heat recovery system for gasifying liquid carbon dioxide | |
| CN116571371B (en) | Ejector device combining distributed two-dimensional spray pipe and traditional circumferential seam | |
| CN221037045U (en) | Fresh water cooling system | |
| CN115993064A (en) | Waste heat recovery method for scale-prone media | |
| CN205679122U (en) | A kind of multiple spot low pressure purge device | |
| CN220366742U (en) | Liquid leakage prevention butt joint cleaning device for head of online cleaning robot of condenser | |
| CN217636877U (en) | Venturi type flue gas quenching device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |