CN109186316B

CN109186316B - Heat exchanger with scouring function and good scouring effect

Info

Publication number: CN109186316B
Application number: CN201811055856.3A
Authority: CN
Inventors: 马立修; 孙贤明; 申晋; 巩秀钢; 陈文钢; 孙霞; 王聪; 孙冬; 刘冲
Original assignee: Shandong University of Technology
Current assignee: Shandong University of Technology
Priority date: 2018-09-11
Filing date: 2018-09-11
Publication date: 2020-03-10
Anticipated expiration: 2038-09-11
Also published as: CN109186316A

Abstract

The utility model provides a wash effectual heat exchanger of area scouring function, belongs to heat exchanger clearance technical field. The method is characterized in that: the heat exchange tubes (101) are arranged in multiple rows along the radius direction of the heat exchanger (1), the number of the heat exchange tubes (101) contained in each row is equal, one end, close to the water inlet cylinder, of the distribution disc (21) is provided with a plurality of flushing tubes (17), the distance from each flushing tube (17) to the center of the distribution disc (21) is equal to the distance from the heat exchange tube (101) corresponding to the flushing tube (17) to the center of the heat exchanger (1), and the flushing tubes (17) are butted with all the heat exchange tubes (101) one by the pushing mechanism; the water outlet end of the heat exchanger (1) is provided with a ball collecting cylinder (22), the ball collecting cylinder (22) is connected with a distribution cylinder (25), and the lower end of the distribution cylinder (25) is communicated with all the flushing pipes (17) at the same time. The heat exchanger with the scouring function and the scouring effect are good, the heat exchanger is cleaned on line, and the operation cost is low.

Description

Heat exchanger with scouring function and good scouring effect

Technical Field

The utility model provides a wash effectual heat exchanger of area scouring function, belongs to heat exchanger clearance technical field.

Background

The shell-and-tube heat exchanger is a dividing wall type heat exchanger which uses the wall surface of the tube bundle enclosed in the shell as the heat transfer surface, and the heat exchanger has simple structure and reliable operation, can be made of various structural materials (mainly metal materials), can be used under high temperature and high pressure, and is the most widely applied type at present.

The oil field can adopt the shell and tube heat exchanger to retrieve the geothermal energy in oil field usually, thereby utilize geothermol power to improve the oil temperature, reduce the viscosity of oil, make things convenient for the transport of oil, because the on-the-spot aquatic of oil field contains oily too much impurity, consequently can the incrustation scale in the heat exchange tube of shell and tube heat exchanger when using, the existence of incrustation scale can influence the heat exchange efficiency of heat exchanger, hinder the flow through water in the heat exchange tube, the use of heat exchanger has been influenced, consequently, need regularly clear up the heat exchanger, but current clearance in-process need clear up the heat exchanger again after stopping using, the use of heat exchanger has been influenced, and because the cycle of clearing up is shorter, need frequent use of stopping the heat exchanger, the use of shell and tube heat exchanger has greatly been influenced, and the clearance is very incomplete.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, the heat exchange tube of the heat exchanger can be cleaned on line through the cleaning balls, and the heat exchanger with the flushing function and the good flushing effect, which is caused by frequent stop of the heat exchanger, is avoided.

The technical scheme adopted by the invention for solving the technical problems is as follows: this erode effectual area and erode heat exchanger of function, including the heat exchanger and intake a section of thick bamboo, the heat exchanger is that both ends are confined cylindricly, and the parallel is provided with many heat exchange tubes in the heat exchanger, and the heat exchanger is all stretched out at the both ends of heat exchange tube, and the coaxial setting of an intake section of thick bamboo is at the end of intaking of the heat exchange tube of heat exchanger, its characterized in that: a distribution disc and a pushing mechanism are arranged at one end, far away from the heat exchanger, of the water inlet cylinder, a plurality of rows of heat exchange tubes are arranged in the radial direction of the heat exchanger, the number of the heat exchange tubes contained in each row is equal, a plurality of flushing tubes are arranged at one end, close to the water inlet cylinder, of the distribution disc, the number of the flushing tubes is equal to the number of the heat exchange tubes contained in each row, the distance from each flushing tube to the center of the distribution disc is equal to the distance from the heat exchange tube corresponding to the flushing tube to the center of the heat exchanger, and the pushing mechanism is connected with the distribution disc and drives the distribution disc to move so that the flushing tubes are butted with all the heat;

the water outlet end of the heat exchange tube is communicated with the flushing tube, a distribution barrel is arranged between the water outlet end of the heat exchange tube and the flushing tube, a ball collecting barrel communicated with the water outlet end of the heat exchange tube is coaxially arranged at one end, away from the water inlet barrel, of the heat exchange tube, a filter screen is arranged at one end, away from the heat exchanger, of the ball collecting barrel, the ball collecting barrel is connected with the distribution barrel, the distribution barrel is a vertically arranged cylinder, the lower portion of the distribution barrel is in a conical shape, the diameter of the lower portion of the distribution barrel is.

Preferably, the lower side of the ball collecting barrel is provided with a ball collecting hopper, the ball collecting hopper is a cone with the diameter gradually reduced from top to bottom, the upper side of the ball collecting hopper is communicated with the ball collecting barrel, and the lower end of the ball collecting hopper is communicated with the distribution barrel.

Preferably, an ejector is arranged between each flushing pipe and the distribution barrel, a low-pressure medium inlet of the ejector is communicated with the lower end of the distribution barrel, a high-pressure medium inlet of the ejector is connected with a delivery pump, and a medium outlet of the ejector is communicated with the corresponding flushing pipe.

Preferably, a flushing valve is arranged between the low-pressure medium inlet of each ejector and the distribution barrel.

Preferably, the pushing mechanism comprises a feeding motor, a conversion motor and a screw rod, the conversion motor is connected with the distribution disc and drives the distribution disc to rotate around an axis, the screw rod and the distribution disc are coaxially arranged and are in threaded connection, and an output shaft of the feeding motor is connected with the screw rod and moves the screw rod to rotate synchronously.

Preferably, still include a transmission section of thick bamboo and a transition section of thick bamboo, a transmission section of thick bamboo and a transition section of thick bamboo all with the coaxial setting of heat exchanger, and a transition section of thick bamboo setting is between a transmission section of thick bamboo and the section of thick bamboo of intaking, and pushing mechanism sets up in a transmission section of thick bamboo, and the dish of allocating slides and sets up in a transition section of thick bamboo, through the sealed setting of baffle between a transmission section of thick bamboo and the transition section of.

Preferably, the two sides of the screw are symmetrically provided with guide rods arranged in parallel with the screw, the two sides of the distribution disc are symmetrically provided with through holes in sliding connection with the guide rods on the corresponding sides, and the two guide rods are symmetrically arranged on the two sides of the output shaft of the conversion motor and are connected with the output shaft of the conversion motor.

Preferably, the side part of the distribution disc is provided with water inlets which are in one-to-one correspondence with the flushing pipes, and the flushing pipes are communicated with the corresponding water inlets.

Compared with the prior art, the utility model discloses the beneficial effect who has is:

1. the distribution disc of the heat exchanger with the scouring function with good scouring effect is pushed by the pushing mechanism, so that the scouring pipes are communicated with the heat exchange pipes one by one, the cleaning balls are distributed in each heat exchange pipe, the cleaning balls can be distributed in each heat exchange pipe, thorough scouring of the heat exchanger is ensured, the scouring pipes simultaneously brush and clean only part of the heat exchange pipes of the heat exchanger, the other heat exchange pipes can continue to work, the heat exchanger is not required to be stopped, the on-line cleaning of the heat exchanger is realized, the cleaning is convenient and thorough, the heat exchange efficiency of the heat exchanger is ensured, the cleaning of the heat exchange pipes can not cause interference to the use of the heat exchanger, the use is convenient, the heat exchange pipes of the heat exchanger can be periodically cleaned, the heat exchange effect of the heat exchanger is ensured, the ball collecting cylinder can collect the cleaning balls conveyed into the heat exchange pipes and convey the cleaning balls back to the distribution cylinder along with water flow, and the cleaning balls are distributed to each scouring pipe by the, realizes the recycling of the cleaning balls and reduces the operation cost.

2. The ball collecting hopper is arranged on the lower side of the ball collecting barrel, and inclined balls can be collected, so that recycling of cleaning balls is realized, and the running cost of the system is reduced.

3. The sprayer can extract the cleaning ball in the distribution cylinder and convey the cleaning ball to the corresponding flushing pipe, and the cleaning ball can be entered into the flushing pipe for each flushing pipe, so that the heat exchange pipe of the heat exchanger is comprehensively flushed and cleaned, and the condition that the water scale in part of the heat exchange pipes cannot be cleaned due to unbalanced distribution of the cleaning ball is avoided.

4. The flushing valve can control the circulation or stop of the cleaning ball, so that the two modes of flushing only through water or adopting the cleaning ball can be switched, the switching is convenient, and the distribution barrel is convenient to overhaul.

5. The distribution disc is driven to rotate by the conversion motor, so that each flushing pipe is communicated with the heat exchange pipe 101 on the same circumference one by one, the axial movement of the distribution disc is realized by the feeding motor, the butt joint of the flushing pipe and the heat exchange pipe 101 is further ensured, the control is convenient, and each heat exchange pipe is guaranteed to be flushed.

6. The transmission cylinder and the transition cylinder are arranged in a sealing mode through the partition plate, so that the phenomenon that scouring water leaks and enters the transmission cylinder to hinder the working of a screw rod and a shifting fork in the transmission cylinder is avoided.

7. The conversion motor is connected with the through hole of the distribution disc in a sliding way through the guide rods on the two sides of the output shaft, so that the distribution disc can be guided, and can swing along with the rotation of the output shaft of the conversion motor

8. The distribution plate is provided with a water inlet, which is convenient for the butt joint of the flushing pipe and the distribution cylinder.

Drawings

Fig. 1 is a schematic perspective view of a heat exchanger with a flushing function and a good flushing effect.

Fig. 2 is a perspective view of the heat exchanger and the distribution plate.

Fig. 3 is a perspective view of a dispensing tray.

FIG. 4 is a front cross-sectional schematic view of a distribution tray.

Fig. 5 is a front sectional view of the ball collecting barrel.

FIG. 6 is a schematic diagram of the structure of the purge ball return line.

FIG. 7 is a schematic drawing showing the pushing of the flushing pipe in example 2.

Fig. 8 is a partial enlarged view of a portion a in fig. 7.

Fig. 9 is a perspective view of the fork.

Fig. 10 is a schematic view of the connection of the flush bin and the flush pipe.

Fig. 11 is a perspective view of the push rod.

Fig. 12 is a perspective view of the positioning frame.

In the figure: 1. the device comprises a heat exchanger 101, a heat exchange tube 2, a transmission cylinder 3, a transition cylinder 4, a feeding motor 5, a conversion motor 6, a fixing ring 7, a water inlet tube 8, a conveying pump 9, a mounting plate 10, a push rod 1001, a groove 11, a screw 12, a guide rod 13, a partition plate 14, a positioning frame 15, a corrugated tube 16, a scouring bin 17, a scouring tube 18, a baffle plate 19, a shifting fork 1901, a nut 1902, a pushing part 1903, a guide hole 20, a water inlet 21, a distribution plate 22, a ball collecting cylinder 23, a filter screen 24, a ball collecting hopper 25, a distribution cylinder 26, a return tube 27, a transparent tube 28, a ball return valve 29, a discharge valve 30, an ejector 31 and a scouring valve.

Detailed Description

Fig. 1 to 6 are preferred embodiments of the present invention, and the present invention will be further described with reference to fig. 1 to 12.

A heat exchanger with a flushing function and a good flushing effect comprises a heat exchanger 1 and a water inlet barrel, wherein the heat exchanger 1 is cylindrical, two ends of the heat exchanger 1 are sealed, a plurality of heat exchange tubes 101 are arranged in the heat exchanger 1 in parallel, two ends of each heat exchange tube 101 extend out of the heat exchanger 1, the water inlet barrel is coaxially arranged at the water inlet end of each heat exchange tube 101 of the heat exchanger 1, one end, far away from the heat exchanger 1, of the water inlet barrel is provided with a distribution disc 21 and a pushing mechanism, the heat exchange tubes 101 are arranged in a plurality of rows along the radius direction of the heat exchanger 1, the number of the heat exchange tubes 101 contained in each row is equal, one end, close to the water inlet barrel, of the distribution disc 21 is provided with a plurality of flushing tubes 17, the number of the flushing tubes 17 is equal to the number of the heat exchange tubes 101 contained in each row, the distance from each flushing tube 17 to the center of the distribution disc 21 is equal to, the flushing pipes 17 are butted with all the heat exchange pipes 101 one by one; a distribution cylinder 25 is arranged between the water outlet end of the heat exchange tube 101 and the flushing tubes 17, one end of the heat exchanger 1, which is far away from the water inlet cylinder, is coaxially provided with a ball collecting cylinder 22 communicated with the water outlet end of the heat exchange tube 101, one end of the ball collecting cylinder 22, which is far away from the heat exchanger 1, is provided with a filter screen 23, the ball collecting cylinder 22 is connected with the distribution cylinder 25, the distribution cylinder 25 is a vertically arranged cylinder, the lower part of the distribution cylinder 25 is in a conical shape, the diameter of the conical shape is gradually reduced from top to bottom, and the lower end of the distribution cylinder. The distribution disc 21 of the heat exchanger with the flushing function with good flushing effect is pushed by the pushing mechanism, so that the flushing pipes 17 are communicated with the heat exchange pipes 101 one by one, the cleaning balls are distributed into each heat exchange pipe 101, the cleaning balls can be distributed in each heat exchange pipe 101, the thorough flushing of the heat exchanger 1 is ensured, the flushing pipes 17 simultaneously flush and clean only part of the heat exchange pipes 101 of the heat exchanger, the other heat exchange pipes 101 can continue to work, the heat exchanger 1 is not required to be stopped, the online cleaning of the heat exchanger is realized, the cleaning is convenient and thorough, the heat exchange efficiency of the heat exchanger 1 is ensured, the cleaning of the heat exchange pipes 101 does not cause interference to the use of the heat exchanger 1, the use is convenient, the heat exchange pipes 101 of the heat exchanger 1 can be periodically cleaned, the heat exchange effect of the heat exchanger 1 is ensured, the ball collecting cylinder 22 can collect the cleaning balls conveyed into the heat exchange pipes 101 and convey the cleaning balls back into the distribution cylinder 25 along with water flow, the distribution cylinder 25 distributes the cleaning balls to each flushing pipe 17, so that the cleaning balls can be recycled, and the operation cost is reduced.

The present invention is further described with reference to the following detailed description, however, it should be understood by those skilled in the art that the detailed description given herein with respect to the accompanying drawings is for better explanation and that the present invention is not necessarily limited to the specific embodiments, but rather, for equivalent alternatives or common approaches, may be omitted from the detailed description, while still remaining within the scope of the present application.

Example 1

As shown in FIGS. 1 to 5: the heat exchanger 1 is cylindrical with two closed ends, the heat exchanger 1 is horizontally arranged, a plurality of heat exchange tubes 101 are arranged in the heat exchanger 1 at intervals, the two ends of each heat exchange tube 101 extend out of the corresponding end of the heat exchanger 1, the heat exchange tubes 101 are arranged in parallel with the axis of the heat exchanger 1, a plurality of fins are arranged in the heat exchanger 1 at intervals along the axial direction and are semicircular, and the heat exchange tubes 101 are fixedly connected with the heat exchanger 1 through the fins, so that the heat exchange tubes 101 are conveniently installed, the heat exchange area is increased, and the heat exchange efficiency is improved. And flanges are coaxially arranged at both ends of the heat exchanger 1.

The left end coaxial arrangement of heat exchanger 1 has a section of thick bamboo of intaking, and the one end that is close to heat exchanger 1 of a section of thick bamboo of intaking is connected with heat exchanger 1 sealing to the section of thick bamboo of intaking has realized the intercommunication with many heat exchange tubes 101 simultaneously. The plurality of heat exchange tubes 101 form a tube side of the heat exchanger 1, and a cavity between the heat exchanger 1 and the heat exchange tubes 101 forms a shell side of the heat exchanger 1. The two ends of the heat exchanger 1 are respectively provided with a shell pass inlet and a shell pass outlet, and the shell pass inlet and the shell pass outlet are respectively arranged at the upper side and the lower side of the heat exchanger 1. The upper side of the water inlet cylinder is provided with a pipe pass inlet which is arranged at the upper side of the water inlet cylinder.

The one end of the section of thick bamboo of intaking has set gradually driving cylinder 2 and a transition section of thick bamboo 3 along the direction that is close to heat exchanger 1, and driving cylinder 2 and a transition section of thick bamboo 3 all with the coaxial setting of the section of thick bamboo of intaking, transition section of thick bamboo 3 and driving cylinder 2 and intake between the section of thick bamboo. A disc-shaped mounting plate 9 is arranged at the open end of the transmission cylinder 2 and is sealed by the mounting plate 9, and a disc-shaped partition plate 13 is arranged between the transmission cylinder 2 and the transition cylinder 3 and is sealed by the partition plate 13, so that a sealed cavity is formed in the transmission cylinder 2; a disc-shaped baffle 18 is arranged between the transition cylinder 3 and the water inlet cylinder, and the baffle 18 separates the water inlet cylinder from the transition cylinder 3.

Be provided with a plurality of infiltration holes on the baffle 18, infiltration hole and scouring pipe 17 one-to-one, in the play water end of scouring pipe 17 slided and passed the infiltration hole and stretched into a section of thick bamboo that intakes, the interval was provided with a plurality of recesses on the pore wall in infiltration hole to can guarantee that an inner chamber of intaking and 3 inner chambers of a transition section of thick bamboo intercommunication, guarantee then that the pressure of an inner chamber of an intaking and 3 inner chambers of a transition section of thick bamboo equals. When the distribution plate 21 moves in a direction to approach the baffle 18, the flushing pipes 17 pass through the corresponding water seepage holes and are butted with the corresponding heat exchange pipes 101, thereby completing the flushing of part of the heat exchange pipes 101. Each water inlet 20 is communicated with a corresponding water inlet pipe 7 through a hose.

The heat exchange tubes 101 in the heat exchanger 1 are arranged in multiple rows at intervals, and each row is provided with a plurality of heat exchange tubes 101 at intervals along the radius direction of the heat exchanger 1. The transition cylinder 3 is only provided with a distribution disc 21, the distribution disc 21 is provided with a plurality of flushing pipes 17, the flushing pipes 17 are arranged at one end of the distribution disc 21 close to the heat exchanger 1, the number of the flushing pipes 17 is equal to the number of the heat exchange pipes 101 contained in each row, and the distance between each flushing pipe 17 and the center of the distribution disc 21 is equal to the distance between the corresponding heat exchange pipe 101 in each row and the center of the heat exchanger 1. The lateral part of the distribution disc 21 is provided with water inlets 20 corresponding to the flushing pipes 17 one by one, the water inlets 20 are communicated with the corresponding flushing pipes 17, and the water inlet pipes 7 are corresponding to the water inlets 20 one by one and are communicated with the corresponding water inlets 20. The pushing mechanism comprises a feeding motor 4, a conversion motor 5 and a screw rod 11, the feeding motor 4 pushes the distribution disc 21 to move axially through the screw rod 11, the screw rod 11 is in threaded connection with the distribution disc 21, the conversion motor 5 drives the distribution disc 21 to rotate around an axis, the flushing pipes 17 are communicated with all the heat exchange pipes 101, and each water inlet pipe 7 can be ensured to be communicated with only one heat exchange pipe 101. Add the cleaning ball in to heat exchange tube 101 through inlet tube 7, utilize the cleaning ball to clear up heat exchange tube 101, the cleaning ball includes the cleaning ball main part at middle part and encircles the steel wire that the cleaning ball main part set up, the cleaning ball main part is the column or the sphere that the diameter is less than heat exchange tube 101 internal diameter, the steel wire can with the integrative setting of cleaning ball main part, also can independently set up with the cleaning ball main part, the steel wire encircles the setting of cleaning ball main part, the diameter of cleaning ball is greater than the internal diameter of heat exchange tube 101.

The two sides of the screw 11 are symmetrically provided with guide rods 12 which are arranged in parallel with the screw 11, the two sides of the distribution disc 21 are symmetrically provided with through holes which are in sliding connection with the guide rods 12 on the corresponding sides, and the two guide rods 12 are symmetrically arranged on the two sides of the output shaft of the conversion motor 5 and are simultaneously connected with the output shaft of the conversion motor 5.

The one end that transition section of thick bamboo 3 was kept away from to heat exchanger 1 is provided with ball collection section of thick bamboo 22, ball collection section of thick bamboo 22 is the drum with the coaxial setting of heat exchanger 1, the one end sealing connection of transition section of thick bamboo 3 is kept away from to ball collection section of thick bamboo 22's left end and heat exchanger 1, ball collection section of thick bamboo 22's right-hand member is provided with filter screen 23, ball collection section of thick bamboo 22's downside is provided with ball collection fill 24, ball collection fill 24 is the toper that the diameter reduces gradually from top to bottom, ball collection fill 24's upside and ball collection section of thick bamboo 22's downside intercommunication, thereby filter screen 23 can avoid the scavenging ball to block and.

As shown in fig. 6: the lower end of the ball collecting hopper 24 is connected with a distribution cylinder 25, the lower end of the ball collecting hopper 24 is communicated with the upper end of the distribution cylinder 25 through a pipeline, the upper part of the distribution cylinder 25 is cylindrical, and the lower part of the distribution cylinder 25 is conical, the diameter of which is gradually reduced from top to bottom. The sprayers 30 are arranged between the distribution barrel 25 and each water inlet pipe 7, the sprayers 30 are arranged in the distribution barrel 25, the bottom of the distribution barrel 25 is provided with a ball outlet, the bottom of the distribution barrel 25 is communicated with the low-pressure medium inlets of the sprayers 30 at the same time, the high-pressure medium inlet of each sprayer 30 is communicated with the water outlet end of the corresponding water inlet pipe 7, the medium outlet of each sprayer 30 is communicated with the corresponding water inlet 20, and therefore the sprayers 30 are used for sucking cleaning balls into the corresponding heat exchange pipes 101, and the cleaning balls are guaranteed to be arranged in each heat exchange pipe 101. A flushing valve 31 is arranged between each injector 30 and the distribution cylinder 25, and the flushing valve 31 can control the on-off of the cleaning ball, so that the cleaning of the heat exchange pipe 101 by the cleaning ball and the cleaning by the water flushing can be switched. The water inlet pipe 7 is connected with a delivery pump 8.

A transparent pipe 27 and a return pipe 26 are arranged between the ball collecting hopper 24 and the distribution cylinder 25, one end of the transparent pipe 27 is communicated with the ball outlet of the ball collecting hopper 24, and the other end is communicated with the upper end of the distribution cylinder 25 through the return pipe 26, so that the cleaning balls can be recycled. The output end of the transparent pipe 27 is also connected with a discharge valve 29, a ball return valve 28 is arranged between the return pipe 26 and the transparent pipe 27, the diameter of the cleaning ball can be observed through the transparent pipe 27, whether the cleaning ball is damaged or not is further judged, the cleaning ball needs to be replaced when the diameter of the cleaning ball is too small, the ball return valve 28 is closed at the moment, the discharge valve 29 is opened, and the damaged cleaning ball is discharged. The addition of cleaning ball can go on through a distribution section of thick bamboo 25, utilizes the cleaning ball, can be more thorough to the washing away of heat exchange tube 101, and the clearance effect is better, avoids the incrustation scale to bond and erodees the problem that can not fall at heat exchange tube 101 inner wall.

Example 2

As shown in fig. 7, embodiment 2 differs from embodiment 1 in that: one end of the water inlet cylinder is provided with a scouring bin 16 and a pushing mechanism, the scouring bin 16 is provided with a plurality of scouring tubes 17 which are spliced into a ring shape coaxial with the heat exchanger 1, one side of each scouring bin 16 close to the heat exchanger 1 is provided with a plurality of scouring tubes 17, the scouring tubes 17 correspond to the heat exchange tubes 101 one by one and are coaxial with the corresponding heat exchange tubes 101, the scouring bin 16 is provided with a water inlet, and the pushing mechanism is connected with the scouring bin 16 one by one and pushes the scouring bin to move horizontally, so that the scouring tubes 17 on the scouring bin 16 are communicated with the water inlet ends of the corresponding heat exchange tubes; the pushing mechanism comprises a feeding motor 4, a conversion motor 5, a shifting fork 19 and a screw rod 11, the screw rod 11 and the heat exchanger 1 are coaxially arranged, a nut 1901 in threaded connection with the screw rod 11 is arranged on the shifting fork 19, an output shaft of the feeding motor 4 is connected with the screw rod 11 and drives the screw rod 11 to synchronously rotate, and an output shaft of the conversion motor 5 is connected with the nut 1901 and drives the nut 1901 to rotate. The pushing mechanism of the heat exchanger with the screw type scouring device pushes the scouring bin 16 to move horizontally one by one, and the scouring pipe 17 is communicated with the water inlet end of the corresponding heat exchange pipe 101, so that part of the heat exchange pipes 101 of the heat exchanger 1 can be scoured and cleaned, the rest of the heat exchange pipes 101 can continue to work, the heat exchanger 1 is not required to be stopped, the heat exchanger 1 is cleaned on line, the cleaning is convenient and thorough, the heat exchange efficiency of the heat exchanger 1 is ensured, the cleaning of the heat exchange pipes 101 cannot cause interference to the use of the heat exchanger 1, the use is convenient, the heat exchange pipes 101 of the heat exchanger 1 can be cleaned periodically, the heat exchange effect of the heat exchanger 1 is ensured, the conversion motor 5 drives the shifting fork 19 to swing, the shifting fork 19 can be aligned with the scouring bin 16 one by one, the feed motor 4 drives the screw rod 11 to rotate, the axial movement of the shifting fork 19 along the screw rod 11 is realized, and the axial reciprocating movement of the, pushing of the flush bin 16 is achieved.

The water inlet 20 of the scouring bin 16 is connected with the water outlet end of the delivery pump 8 through the water inlet pipe 7, and the water inlet end of the delivery pump 8 is communicated with the pipe pass inlet of the water inlet cylinder, so that the heat exchange pipe 101 is directly scoured by utilizing underground water, impurities in the underground water are scoured, and the scouring effect is better. The delivery pump 8 goes out the water end and is provided with the dispersion pipe, and the tip of dispersion pipe and the delivery pump 8 go out the water end intercommunication, and many inlet tubes 7 are linked together with the lateral part of dispersion pipe simultaneously to realized simultaneously to a plurality of 16 water injections that erode the storehouse.

The outer coaxial solid fixed ring 6 that is provided with of a transition section of thick bamboo 3, many inlet tubes 7 are installed simultaneously on solid fixed ring 6 to make inlet tube 7 interval equipartition through solid fixed ring 6, make inlet tube 7 convenient and corresponding washing away storehouse 16 be linked together. The water outlet end of the water inlet pipe 7 is fixed on the wall of the transition cylinder 3, and the water inlet 20 of each scouring bin 16 is communicated with the water outlet end of the corresponding water inlet pipe 7 through a hose, so that the water inlet pipe 7 is prevented from hindering the translation of the scouring bins 16.

As shown in FIGS. 8 to 12: a locating rack 14 is arranged in the transition cylinder 3, the locating rack 14 is a cylindrical framework, the locating rack 14 and the transition cylinder 3 are coaxially arranged, and the locating rack 14 is connected with the partition plate 13. The flushing bin 16 is arranged in the transition cylinder 3 on the right side of the positioning frame 14.

The scouring bin 16 is a fan-shaped box body, a plurality of scouring pipes 17 are arranged on one side of the scouring bin 16 close to the heat exchanger 1 at intervals, and the scouring pipes 17 are communicated with the inner cavities of the corresponding scouring bins 16. The plurality of scouring bins 16 are spliced into an annular shape coaxial with the transition cylinder 3, the scouring bins 16 are arranged in the transition cylinder 3 in a sliding mode, and the scouring bins 16 are arranged between the baffle plates 18 and the positioning frames 14. The flushing pipes 17 correspond to the heat exchange pipes 101 of the heat exchanger 1 one by one, so that all the heat exchange pipes 101 can be flushed.

When the scouring bin 16 moves towards the direction close to the heat exchanger 1, the scouring pipe 17 connected with the scouring bin 16 passes through the corresponding water seepage hole and is in butt joint with the corresponding heat exchange pipe 101, so that the scouring of part of the heat exchange pipes 101 is completed. The outer side of each scouring bin 16 is provided with a radial water inlet 20, and the water inlets 20 are communicated with the corresponding water inlet pipes 7 through hoses.

The transmission cylinder 2 is internally provided with a push rod 10 which is arranged in parallel with the flushing pipe 17, the push rod 10 corresponds to the flushing bins 16 one by one, one end of the push rod 10 close to the flushing bin 16 is fixedly connected with the middle part of the corresponding flushing bin 16, the other end surrounding the push rod 10 is provided with a groove 1001, and the pushing mechanism pushes the push rod 10 to axially reciprocate through the groove 1001 so as to push the corresponding flushing bin 16 to reciprocate.

The partition plate 13 is provided with a plurality of through holes at intervals, the through holes correspond to the push rods 10 one by one, and the push rods 10 penetrate through the corresponding through holes and then are fixedly connected with the corresponding scouring bins 16. The push rods 10 are slidably connected with the corresponding through holes. The bellows 15 is all overlapped in the outside of every push rod 10, and bellows 15 sets up between baffle 13 and the storehouse 16 that erodees that corresponds, and bellows 15 sets up in locating rack 14 promptly, bellows 15's one end and baffle 13 sealing connection, the other end with the storehouse 16 sealing connection that erodees that corresponds to make the inner chamber of

transmission cylinder

2 and 3 inner chambers of transition cylinder set up at an interval, avoid the water leakage in the transition cylinder 3. The pressure in the inner cavity of the transmission cylinder 2 is greater than or equal to the pressure in the inner cavity of the transition cylinder 3, the pressure in the inner cavity of the transmission cylinder 2 is preferably greater than the pressure in the inner cavity of the transition cylinder 3, the corrugated pipe 15 can be prevented from being flattened, and the corrugated pipe 15 is convenient to use.

The feeding motor 4 and the conversion motor 5 are both arranged outside the transmission cylinder 2, and the feeding motor 4 and the conversion motor 5 are both arranged outside the mounting plate 9. One end of the screw rod 11 is rotatably connected with the mounting plate 9, the other end of the screw rod is rotatably connected with the partition plate 13, the shifting fork 19 is arranged along the radial direction of the screw rod 11, a nut 1901 which is coaxially arranged with the screw rod 11 is arranged at the inner end of the shifting fork 19 and is in threaded connection with the screw rod 11 through the nut 1901, the output shaft of the feeding motor 4 is coaxially connected with the screw rod 11 and drives the screw rod 11 to rotate, and then the shifting fork 19 is translated along the axial direction of the screw rod 11. The outer end of the shifting fork 19 is provided with a pushing part 1902 with a concave middle part, and the pushing part 1902 is matched with the corresponding groove 1001 of the push rod 10, so as to push the push rod 10 to move along the axial direction of the screw 11. Guide rods 12 parallel to the screw rod are symmetrically arranged on two sides of the screw rod 11, guide holes 1903 in sliding connection with the guide rods 12 on the corresponding sides are symmetrically arranged on two sides of the nut 1901, the two guide rods 12 are respectively arranged on two sides of an output shaft of the conversion motor 5 and are simultaneously connected with the output shaft of the conversion motor 5, and therefore the shifting fork 19 is driven to swing, and then the push rod 10 is pushed to move axially one by one.

Preferably, the pushing portions 1902 are symmetrically disposed at two sides, so that the push rods 10 at two sides can be pushed to move axially by two sides of the shift fork 19. After the position of the shifting fork 19 is adjusted to one side, the push rods 10 on two sides of the shifting fork 19 can be simultaneously pushed, so that the angle of the shifting fork 19 adjusted along the circumferential direction is reduced, and the working efficiency is improved.

When the heat exchange pipe 101 is flushed, the pressure of the liquid in the flushing pipe 17 is greater than the pressure of the liquid in the original heat exchange pipe 101, so that the water scale in the heat exchange pipe 101 is flushed completely. Preferably, an electromagnetic valve can be arranged on each water inlet pipe 7, when the flushing pipe 17 on which the flushing bin 16 is translated is communicated with the heat exchange pipe 101, the electromagnetic valve on the water inlet pipe 7 communicated with the flushing bin 16 is opened, and the electromagnetic valves on the other water inlet pipes 7 are closed, so that the pressure of liquid in the flushing pipe 17 during flushing is ensured, and further thorough flushing is ensured.

The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a erode effectual area and erode heat exchanger of function, includes heat exchanger (1) and the section of thick bamboo of intaking, heat exchanger (1) is the cylindric of both ends confined, and the parallel is provided with many heat exchange tubes (101) in heat exchanger (1), and heat exchanger (1) all stretches out at the both ends of heat exchange tube (101), and the coaxial setting of the section of thick bamboo of intaking is held its characterized in that at the end of intaking of heat exchange tube (101) of heat exchanger (1): a distribution disc (21) and a pushing mechanism are arranged at one end, away from the heat exchanger (1), of the water inlet cylinder, a plurality of rows of heat exchange tubes (101) are arranged in the radial direction of the heat exchanger (1), the number of the heat exchange tubes (101) contained in each row is equal, a plurality of flushing tubes (17) are arranged at one end, close to the water inlet cylinder, of the distribution disc (21), the number of the flushing tubes (17) is equal to the number of the heat exchange tubes (101) contained in each row, the distance from each flushing tube (17) to the center of the distribution disc (21) is equal to the distance from the heat exchange tube (101) at the corresponding position to the center of the heat exchanger (1), and the pushing mechanism is connected with the distribution disc (21) and drives the distribution disc (21) to move so that the flushing tubes (17) are butted with all the heat exchange tubes (101) one by;

a distribution barrel (25) is arranged between the water outlet end of the heat exchange tube (101) and the flushing tube (17), one end of the heat exchanger (1) far away from the water inlet barrel is coaxially provided with a ball collecting barrel (22) communicated with the water outlet end of the heat exchange tube (101), one end of the ball collecting barrel (22) far away from the heat exchanger (1) is provided with a filter screen (23), the ball collecting barrel (22) is connected with the distribution barrel (25), the distribution barrel (25) is a vertically arranged cylinder, the lower part of the distribution barrel (25) is in a conical shape with the diameter gradually reduced from top to bottom, and the lower end of the distribution barrel (25) is simultaneously communicated with all the flushing tubes (17);

the pushing mechanism comprises a feeding motor (4), a conversion motor (5) and a screw rod (11), the conversion motor (5) is connected with the distribution disc (21) and drives the distribution disc (21) to rotate around an axis, the screw rod (11) and the distribution disc (21) are coaxially arranged, the screw rod (11) is in threaded connection with the distribution disc (21), and an output shaft of the feeding motor (4) is connected with the screw rod (11) and moves the screw rod (11) to synchronously rotate.

2. The heat exchanger with the flushing function and the good flushing effect according to claim 1, is characterized in that: the lower side of the ball collecting cylinder (22) is provided with a ball collecting hopper (24), the ball collecting hopper (24) is in a conical shape with the diameter gradually reduced from top to bottom, the upper side of the ball collecting hopper (24) is communicated with the ball collecting cylinder (22), and the lower end of the ball collecting hopper (24) is communicated with the distribution cylinder (25).

3. The heat exchanger with the flushing function and the good flushing effect according to claim 1, is characterized in that: an ejector (30) is arranged between each flushing pipe (17) and the distribution cylinder (25), a low-pressure medium inlet of the ejector (30) is communicated with the lower end of the distribution cylinder (25), a high-pressure medium inlet of the ejector (30) is connected with a delivery pump (8), and a medium outlet of the ejector (30) is communicated with the corresponding flushing pipe (17).

4. The heat exchanger with the flushing function and the good flushing effect according to claim 3, is characterized in that: a flushing valve (31) is arranged between the low-pressure medium inlet of each ejector (30) and the distribution cylinder (25).

5. The heat exchanger with the flushing function and the good flushing effect according to claim 1, is characterized in that: still include driving cylinder (2) and transition section of thick bamboo (3), driving cylinder (2) and transition section of thick bamboo (3) all with heat exchanger (1) coaxial setting, and transition section of thick bamboo (3) set up between driving cylinder (2) and the section of thick bamboo that intakes, pushing mechanism sets up in driving cylinder (2), and distribution disc (21) slide and set up in transition section of thick bamboo (3), through baffle (13) sealed setting between driving cylinder (2) and the transition section of thick bamboo (3).

6. The heat exchanger with the flushing function and the good flushing effect according to claim 1, is characterized in that: the two sides of the screw rod (11) are symmetrically provided with guide rods (12) which are parallel to the screw rod (11), the two sides of the distribution disc (21) are symmetrically provided with through holes which are in sliding connection with the guide rods (12) on the corresponding sides, and the two guide rods (12) are symmetrically arranged on the two sides of the output shaft of the conversion motor (5) and are simultaneously connected with the output shaft of the conversion motor (5).

7. The heat exchanger with the flushing function and the good flushing effect according to claim 1, is characterized in that: the side part of the distribution disc (21) is provided with water inlets (20) which are in one-to-one correspondence with the flushing pipes (17), and the flushing pipes (17) are communicated with the corresponding water inlets (20).