CN110887401B

CN110887401B - Control mechanism, descaling device and heat exchange system

Info

Publication number: CN110887401B
Application number: CN201911217533.4A
Authority: CN
Inventors: 叶伟炳; 彭永磊
Original assignee: Guangdong Wenyang Environmental Technology Co ltd
Current assignee: Guangdong Wenyang Environmental Technology Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2021-06-11
Anticipated expiration: 2039-12-03
Also published as: CN110887401A

Abstract

The application relates to a control mechanism, a descaling device and a heat exchange system. The control mechanism is used for being connected with the evaporation main body and a transmission shaft of the driving mechanism respectively, the control mechanism comprises a fixed frame, a rotating shaft, a butting wheel, a positioning column and a sensor, the fixed frame is provided with a through hole and is used for being connected with the evaporation main body; the rotating shaft penetrates through the through hole and is rotationally connected with the fixed frame; the abutting wheel is sleeved on the rotating shaft and is rotationally connected with the rotating shaft, the abutting wheel and the rotating shaft are coaxially arranged, the abutting wheel is provided with an installation position, and the abutting wheel is used for abutting against the transmission shaft; the positioning column is arranged at the mounting position; when the positioning column rotates to the position corresponding to the sensor along with the abutting wheel, the sensor senses the positioning column and sends a control signal to the control end of the driving mechanism so as to accurately control the stroke length position of the driving mechanism for driving the transmission shaft to drive the frame to slide, and therefore the problem that the descaling effect of the heat exchange system is poor is solved.

Description

Control mechanism, descaling device and heat exchange system

Technical Field

The application relates to the technical field of online cleaning of a mechanical steam recompression technology, in particular to a control mechanism, a descaling device and a heat exchange system.

Background

The heat exchange system is widely applied to evaporation and concentration of water phase or organic phase solution in the light chemical industry, and is particularly used for concentration of waste water or traditional Chinese medicine. Specifically, under the condition of normal pressure or vacuum, the heat exchange system is used for carrying out continuous or discontinuous, single-effect or multi-effect evaporation concentration on the wastewater or the traditional Chinese medicine. The heat exchange System controls the temperature of the System and the rotating speed of the pressure motor through a PLC (Programmable Logic Controller) or a DCS (Distributed Control System) and the like so as to keep the evaporation balance of the System. The working principle of the heat exchange system is as follows: the evaporator material sprays the heat exchange tube surface through atomizing nozzle, and the material flows down along the heat exchange tube face under the effect of gravity and forms the film, and steam lets in the heat exchange tube, and with energy transfer for the material outside the heat exchange tube after the condensation, make the material absorb steam energy and form the film evaporation, produce the secondary steam and get into next effect evaporimeter or MVR (Mechanical Vapor Recompression technique) Vapor compressor behind gas-liquid separation.

The waste water material of the heat exchange system flows out of the pipe, and the pure steam flows in the pipe, namely, the waste water flows out of the heat exchange pipe, and the steam flows in the heat exchange pipe. The descaling device descales the outer wall of the heat exchange pipe so as to prevent the outer wall of the heat exchange pipe from scaling. When the waste water is organic high-calcium waste water, the MVR heat exchange system is easy to scale during operation, and the descaling device needs to repeatedly operate in the evaporation main body so as to descale the outer wall of the heat exchange pipe. The driving mechanism of the traditional descaling device transmits power to the frame through the transmission shaft to drive the frame to slide relative to the evaporation main body, wherein the power of the transmission shaft drives the transmission shaft to drive the sliding stroke length of the frame to be measured by adopting an encoder, and the driving mechanism is controlled by corner data fed back by the transmission shaft. However, the control precision of the driving mechanism is low, which causes the problem of poor descaling effect of the heat exchange system.

Disclosure of Invention

Therefore, it is necessary to provide a control mechanism, a descaling device and a heat exchange system for solving the problem of poor descaling effect of the heat exchange system.

A control mechanism for connection to an evaporation body and a drive shaft of a drive mechanism, respectively, the control mechanism comprising:

the fixing frame is provided with a through hole and is used for being connected with the evaporation main body;

the rotating shaft penetrates through the through hole and is rotationally connected with the fixing frame;

the abutting wheel is sleeved on the rotating shaft and is rotationally connected with the rotating shaft, the abutting wheel and the rotating shaft are coaxially arranged, an installation position is arranged on the abutting wheel, and the abutting wheel is used for abutting against the transmission shaft;

the positioning column is arranged at the mounting position;

the sensor is arranged on the fixing frame and used for generating a control signal when the positioning column touches the sensor, and the sensor is electrically connected with the control end of the driving mechanism.

In one embodiment, the fixing frame comprises a bottom plate and a bracket assembly which are connected, the bottom plate is used for being connected with the evaporation main body, the through hole is formed in the bracket assembly, and the sensor is arranged on the bracket assembly.

In one embodiment, the bracket assembly comprises a support frame and a fixing block, the support frame is connected to the bottom plate, the through hole is formed in the support frame, the fixing block is connected with the support frame, and the sensor is connected to the fixing block.

In one embodiment, the number of the support frames is two, the two support frames are arranged in parallel, and two ends of the rotating shaft are respectively located in the through holes of the two support frames.

In one embodiment, the fixing block is provided with a connecting hole, and the sensor is arranged in the connecting hole in a penetrating manner and connected with the fixing block.

In one embodiment, the sensor comprises a switch body, a first locking ring and a second locking ring, wherein the outer wall of the switch body is provided with threads, the first locking ring and the second locking ring are sleeved on the switch body and are in threaded connection with the switch body, and the first locking ring and the second locking ring are respectively abutted against two surfaces of the fixed block, so that the sensor is connected with the fixed block.

In one embodiment, the number of the installation positions is multiple, the installation positions are distributed along the circumferential direction of the abutting wheel, and the positioning column is arranged on one of the installation positions, so that the positioning column has multiple installation positions, the installation positions of the positioning column can be adjusted according to the requirements of the use positions, and the applicability of the control mechanism is improved.

In one embodiment, a plurality of the mounting positions are communicated with one another, so that the mounting positions of the positioning columns can be quickly and flexibly adjusted according to requirements.

A descaling device comprises a driving mechanism and a control mechanism in any one of the above embodiments, wherein the driving mechanism comprises a transmission shaft, a butting wheel is butted with the transmission shaft, and the transmission shaft is used for being rotatably connected with an evaporation main body.

A heat exchange system comprises an evaporation main body and the descaling device, wherein the evaporation main body is provided with a mounting hole, a transmission shaft penetrates through the mounting hole and is rotatably connected with the evaporation main body, and a fixing frame is connected with the evaporation main body.

Foretell control mechanism, scale removal device and heat transfer system, the mount is connected in the evaporation main part, the pivot is worn to locate in the through-hole and is connected with the mount rotation, the butt wheel cover is located the pivot and is connected with the pivot rotation, make the butt wheel rotate for the mount along with the pivot, because butt wheel and transmission shaft butt, when actuating mechanism passes through the slip of transmission shaft drive frame, the transmission shaft drives the butt wheel and rotates, again because the butt takes turns to and is equipped with the installation position, the reference column is located the installation position and is rotated to different positions along with the butt wheel, when the reference column rotates to the position that corresponds with the sensor along with the butt wheel, the sensor senses the reference column and sends control signal to actuating mechanism's control end, with the gliding stroke length position of accurate control actuating mechanism drive transmission shaft drive frame, thereby the relatively poor problem of heat transfer system's scale removal.

Drawings

FIG. 1 is a partial schematic view of a heat exchange system according to one embodiment;

FIG. 2 is a schematic view of a control mechanism for the descaling device of the heat exchange system of FIG. 1;

FIG. 3 is a schematic view of another perspective of the control mechanism of FIG. 2;

fig. 4 is a partial schematic view of the control mechanism shown in fig. 3.

Detailed Description

To facilitate an understanding of the present application, the control mechanism, the descaling device and the heat exchange system will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the control mechanism, descaling device and heat exchange system are shown in the attached drawings. However, the control mechanism, descaling device, and heat exchange system may be implemented in many different forms and are not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete in the control mechanism, descaling device, and heat exchange system.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the control mechanism, descaling device, and heat exchange system is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in FIG. 1, the heat exchange system 10 of an embodiment includes an evaporation body 100 and a descaling device 200. In one embodiment, the evaporation body 100 is provided with a mounting hole. The descaling device 200 is inserted into a mounting hole (not shown) so that the descaling device 200 is disposed on the evaporation body 100. Specifically, the descaling device 200 is partially located at the periphery of the evaporation body 100, and partially located inside the evaporation body 100.

As shown in FIG. 1, in one embodiment, the descaling device 200 further comprises a driving mechanism 210 and a control mechanism 220, wherein the driving mechanism comprises a transmission shaft 212. The transmission shaft is rotationally connected with the evaporation main body. The control mechanism is abutted with the transmission shaft so as to measure the stroke length position of the frame in sliding. In this embodiment, the transmission shaft is arranged in the mounting hole in a penetrating manner and is rotationally connected with the evaporation main body, and the fixing frame is connected with the evaporation main body.

Referring to both fig. 2 and 3, in one embodiment, the control mechanism is adapted to be coupled to the drive shafts of the evaporation body and the drive mechanism, respectively. The control mechanism includes a fixing frame 221, a rotating shaft 222, an abutting wheel 223, a positioning column 224 and a sensor 225. The fixing frame is provided with a through hole 221a, and the rotating shaft penetrates through the through hole and is rotatably connected with the fixing frame. The fixing frame is connected to the evaporation main body. In this embodiment, the contact wheel is a circular wheel structure.

In one embodiment, the abutting wheel is sleeved on the rotating shaft and is in rotating connection with the rotating shaft. The butt joint wheel and the rotating shaft are coaxially arranged. The butt joint wheel is provided with an installation position 223a and is used for being in butt joint with the transmission shaft. The positioning column is arranged on the mounting position. The sensor is arranged on the fixed frame. The sensor is used for generating a control signal when being touched with the positioning column, and the sensor is used for being electrically connected with a control end of the driving mechanism.

In this embodiment, the sensor is an electromagnetic sensor or a proximity switch. When the transmission shaft is rotatory, the transmission shaft drives the butt wheel and rotates, makes the rotatory certain angle of butt wheel, and the reference column rotates to the position that touches with the sensor along with the butt wheel, and reference column touching sensor, sensor send control signal to control actuating mechanism's just reversing or open and stop. It will be appreciated that the mounting locations may be slot structures or boss structures. In one embodiment, the mounting locations are slot structures. Specifically, the installation position is the pore structure, makes the reference column wear to locate the installation position.

The control mechanism controls the driving mechanism to drive the frame to slide for 10m, the stroke error is 1-2 mm, the control mechanism has better control precision and good structural performance, and meanwhile, the quick installation can be realized. Each part of the control mechanism can be made of common carbon steel, and the whole cost is low.

As shown in fig. 2, in one embodiment, the mount comprises a bottom plate 2212 and a bracket assembly 2214 connected together. The bottom plate is used for being connected to the evaporation main body. The through hole is opened in the bracket component, the sensor is located the bracket component. In this embodiment, the bottom plate is fixed to the evaporation body by bolting. Specifically, control mechanism still includes the locking bolt, and first fixed orifices 2213 has been seted up to the bottom plate, and the second fixed orifices has been seted up to the evaporation main part, and the locking bolt wears to locate in first fixed orifices and the second fixed orifices respectively.

As shown in fig. 2, in one embodiment, the first fixing hole 2213 is a waist-shaped hole, so that the connection position of the bottom plate and the evaporation body can be flexibly adjusted to meet different installation requirements. In other embodiments, the locking bolt may be omitted, the bottom plate may not be provided with the first fixing hole, the evaporation main body may not be provided with the second fixing hole, and the bottom plate is welded to the evaporation main body.

As shown in fig. 3, in one embodiment, the bracket assembly includes a support 2215 and a securing block 2216. The support frame is connected to the bottom plate. The through hole is arranged on the support frame, and the fixing block is connected with the support frame. The sensor is connected to the fixed block. In this embodiment, the fixing block is a plate structure. In one embodiment, the fixing block is detachably connected with the support frame, so that the fixing block can be replaced and detached. Further, the bracket assembly further comprises a locking member. First through-hole 2217 has been seted up to the fixed block, and the second through-hole has been seted up to the support frame, and the retaining member wears to locate respectively in first through-hole and the second through-hole, makes fixed block and support frame can dismantle and be connected.

In this embodiment, the quantity of first through-hole is a plurality of, and the retaining member wears to locate in second through-hole and one of them first through-hole respectively, makes fixed block and support frame can dismantle and be connected. The user can adjust the first through-hole of the difference that the transform retaining member wore to establish as required. In this embodiment, the retaining member is a locking screw.

As shown in fig. 3, further, the through hole is opened at the end of the support frame far away from the fixing block, so that the rotating shaft can be quickly mounted on the fixing frame. Further, control mechanism still includes limiting plate 226, and the limiting plate is connected with the support frame to with the pivot spacing in the through-hole, avoid the pivot to break away from the mount through the through-hole. Furthermore, the limiting plate is connected to the support frame through a fixing screw, so that the limiting plate is tightly connected with the support frame. Furthermore, the limiting plate is provided with a first screw hole 226a, the support frame is provided with a second screw hole, and the fixing screws respectively penetrate through the first screw hole and the second screw hole, so that the limiting plate is connected to the support frame through the fixing screws.

In one embodiment, the number of the support frames is two, and the two support frames are arranged in parallel. The two ends of the rotating shaft are respectively positioned in the through holes of the two supporting frames, so that the rotating connection between the rotating shaft and the fixing frame is more stable. In this embodiment, the abutment wheel is located between the two support brackets.

As shown in fig. 3, in one embodiment, the fixing block is provided with a connecting hole 2218, and the sensor is inserted into the connecting hole and connected to the fixing block. In this embodiment, the connecting hole is a waist-shaped hole, so that the relative position between the sensor and the fixed block can be flexibly adjusted, and the relative connecting position between the sensor and the fixed block can be adjusted at will. In this embodiment, the fixed block is detachably connected to the sensor.

As shown in fig. 3 and 4, in one embodiment, the sensor includes a switch body 225a, a first locking ring 225b, and a second locking ring 225 c. The outer wall of the switch body is provided with threads. The first locking ring and the second locking ring are sleeved on the switch body and are in threaded connection with the switch body. The first locking ring and the second locking ring are respectively abutted against two surfaces of the fixing block, so that the sensor is connected with the fixing block. In this embodiment, the first locking ring and the second locking ring are both lock nuts. The first locking ring and the second locking ring are respectively positioned at two sides of the fixing block.

In one embodiment, the number of the mounting positions is multiple, and the mounting positions are distributed along the circumferential direction of the butting wheel. The positioning column is arranged on one of the mounting positions, so that the positioning column is provided with a plurality of mounting positions, the mounting positions of the positioning column can be adjusted according to the requirements of the use positions, and the applicability of the control mechanism is improved.

In one embodiment, a plurality of the mounting positions are communicated with one another, so that the mounting positions of the positioning columns can be quickly and flexibly adjusted according to requirements. In one embodiment, a plurality of the mounting sites are interconnected to form an arc-shaped kidney-shaped hole. The central line in arc waist shape hole with the coincidence of the central line of pivot makes the processing degree of difficulty of installation position lower, makes control mechanism's structure simpler simultaneously. In this embodiment, the extending direction of the arc-shaped waist-shaped hole is arranged around the circumferential direction of the abutting wheel.

It is understood that in other embodiments, the plurality of mounting locations may not be in communication with each other. In one embodiment, a plurality of installation positions are distributed at intervals, and the positioning columns are installed to different installation positions according to the requirements of the installation positions of the positioning columns in use.

As shown in fig. 2 and fig. 3, the positioning post further includes a column 224a, a limiting portion 224b and a first positioning nut 224 c. The cylinder is connected with the limiting part and penetrates through the installation position. The limiting part is used for limiting the column body on one side of the abutting wheel. The outer wall of the column body is provided with a connecting thread, and the first positioning nut is sleeved on the column body and is in threaded connection with the column body. The first positioning nut is located on one side, away from the limiting portion, of the abutting wheel so as to lock and fix the cylinder body on the abutting wheel, and the positioning column is fixed on the abutting wheel in an installing mode. Further, the positioning post further comprises a second positioning nut 224d, which is located on a side of the abutment wheel facing away from the first positioning nut. The second positioning nut is respectively abutted with the abutting wheel and the limiting part, so that two sides of the abutting wheel are respectively abutted with the first positioning nut and the second positioning nut, the positioning columns are more firmly installed on the abutting wheel, and a better loosening effect is achieved.

In one embodiment, the abutment wheel is a friction wheel. In this embodiment, the abutment wheel includes the abutment wheel main part and sets up the friction layer of the peripheral of abutment wheel main part, makes the friction layer have better wearability. In one embodiment, the friction layer is made of a high manganese steel layer or a tungsten carbide layer, so that the friction layer has better wear resistance. In one embodiment, the circumference of the abutting wheel main body is provided with an embedded groove, and the friction layer is at least partially formed in the embedded groove, so that the friction layer is firmly connected with the abutting wheel main body. Furthermore, the section of the embedded groove in the radial direction of the abutting wheel main body is I-shaped, so that the friction layer is more reliably connected with the abutting wheel main body.

It can be understood that, in other embodiments, the butt-joint wheel main body and the friction layer are integrally formed, so that the structure of the butt-joint wheel is compact, the material of the butt-joint wheel main body is the same as that of the friction layer, the material of the butt-joint wheel main body and the friction layer both have good wear resistance, the wear resistance of the whole structure of the butt-joint wheel is good, and the service life of the butt-joint wheel is prolonged.

In one embodiment, the descaling device further comprises a transmission sealing device. The transmission sealing device is used for being connected with the evaporation main body and the transmission shaft respectively. In one embodiment, the transmission shaft is inserted into the mounting hole and rotatably connected to the evaporation main body 100, and the transmission sealing device is sleeved on the transmission shaft 212 and connected to the evaporation main body 100, so as to prevent the pressure in the evaporation main body 100 from leaking through the mounting hole, thereby tightly connecting the evaporation main body 100 and the transmission shaft 212.

In one embodiment, the drive seal assembly includes a packing element, a seal ring, and a pressure plate. In one embodiment, the packing member defines a filling groove and a through hole that are communicated with each other, and the packing member is configured to be sleeved on the transmission shaft 212 and rotate relative to the transmission shaft 212. The filling member is further configured to be connected to the evaporation body 100, and the transmission shaft 212 is configured to penetrate through the filling groove and the through hole, respectively.

In one embodiment, a sealing ring is disposed in the filling groove and abuts against the filling member, and the sealing ring is configured to be sleeved on the transmission shaft 212. In one embodiment, the pressure plate is connected to the packing element. The pressing plate is abutted to the sealing ring to press the sealing ring in the filling groove, and the pressing plate is sleeved on the transmission shaft 212.

In one embodiment, the mounting hole is communicated with the through hole, and the transmission shaft 212 is arranged in the mounting hole and is rotatably connected with the evaporation main body 100. In this embodiment, the packing element cover is arranged in the mounting hole, so that the packing element can better block the mounting hole.

Because the sealing ring is located the filling groove and with the filler piece butt, and the sealing ring cover is located on transmission shaft 212, make the sealing ring seal in the clearance between transmission shaft 212 and the filling groove, again because the clamp plate is connected with the filler piece, the clamp plate cover is located on transmission shaft 212, and the clamp plate butt is in the sealing ring, make the clamp plate compress tightly the sealing ring in the filling groove, in order to avoid sealing ring and filler piece separation, make the sealing ring connect reliably between clamp plate and filler piece, thereby the compactness of transmission shaft 212 and evaporation main body 100 junction has been improved, the problem that there is great pressure leakage in evaporation main body 100 has been solved. In the heat exchange system, the transmission shaft 212 penetrates through the mounting hole and is rotatably connected with the evaporation main body 100, the mounting hole is communicated with the through hole, and the packing piece is connected with the evaporation main body 100, and the sealing ring is sealed in the gap between the transmission shaft 212 and the packing groove, so that the transmission sealing device can be sealed in the mounting hole, and the tightness of the joint of the transmission shaft 212 and the evaporation main body 100 is further improved.

In one embodiment, the diameter of the filling groove is larger than that of the through hole, so that the sealing ring is prevented from entering the through hole, and the sealing ring is limited in the filling groove. In this embodiment, the cross section of the filling groove and the cross section of the through hole are both circular.

In one embodiment, the outer diameter of the sealing ring is equal to the inner diameter of the filling groove, enabling the sealing ring to abut against the inner wall of the filling groove. It can be understood that, in other embodiments, the outer diameter of the sealing ring may be larger than the inner diameter of the filling groove, so that the sealing ring is elastically abutted against the inner wall of the filling groove, and the connection between the sealing ring and the inner wall of the filling groove is tighter.

In one embodiment, the number of the sealing rings is multiple, and the plurality of sealing rings are coaxially arranged side by side, so that the connection between the transmission shaft 212 and the packing element is tighter, and thus the problem of pressure leakage in the evaporation body 100 can be better avoided. In this embodiment, the plurality of sealing rings are sleeved on the transmission shaft 212 side by side, so that the plurality of sealing rings are coaxially arranged side by side. Two adjacent sealing rings are mutually abutted, so that the plurality of sealing rings are tightly sleeved on the transmission shaft 212.

In order to firmly connect the filling element and the pressure plate, in one embodiment, the transmission sealing device further comprises a locking element which is respectively connected with the filling element and the pressure plate so as to firmly connect the filling element and the pressure plate.

In one embodiment, the pressing plate is provided with a first connecting hole, and the filling member is provided with a second connecting hole. The retaining member is respectively penetrated through the first connecting hole and the second connecting hole, so that the retaining member is respectively connected with the filling member and the pressing plate. In this embodiment, the locking member is a locking screw, and the first connecting hole is a through hole structure. And the second connecting hole site threaded hole structure enables the locking piece to be in threaded connection with the filling piece.

In order to adjust the distance between the filling member and the pressure plate, the distance between the pressure plate and the filling member is adjustable, and the pressing force of the pressure plate acting on the sealing ring is adjusted. The transmission sealing device further comprises a first adjusting nut, the first adjusting nut is sleeved on the first screwing part and is in threaded connection with the locking part, the first adjusting nut is abutted to one side, away from the packing piece, of the pressing plate, one side, close to the packing piece, of the pressing plate is abutted to the pressing ring along the radial direction of the sealing ring, so that the distance between the pressing plate and the packing piece is adjustable, meanwhile, the pressing force of the pressing plate acting on the sealing ring is adjusted, and therefore the distance between the packing piece and the pressing plate is adjusted more conveniently.

In one embodiment, the pressing plate includes a pressing plate main body and a protruding portion, the pressing plate main body is used for being sleeved on the transmission shaft 212, the protruding portion is located on one side, adjacent to the packing element, of the pressing plate main body, and the protruding portion abuts against the sealing ring, so that the pressing plate can better abut against the sealing ring. In one embodiment, the bulge part is positioned in the filling groove and is abutted against the sealing ring, so that the bulge part is better abutted against the sealing ring, and the bulge part can reliably and accurately limit the sealing ring in the filling groove.

In order to facilitate the adjustment of the pressing force of the pressing plate on the sealing ring, in one embodiment, the protruding portion comprises a protruding main body and a movable portion, the protruding main body is connected with the pressing plate main body, the movable portion is movably connected with the protruding main body, and the end of the movable portion, which is far away from the protruding main body, abuts against the sealing ring, so that the relative position of the movable portion and the protruding main body is adjustable. In this embodiment, the relative distance between the movable part and the main body of the protrusion is adjustable, and the distance between the movable part and the main body of the protrusion can be flexibly adjusted according to the pressing force of the pressing plate on the sealing ring.

In one embodiment, the pressing plate further comprises a connecting bolt and a second adjusting nut, a second screwing portion is arranged on the outer wall of the connecting bolt, a through hole is formed in the protruding portion, and the through hole penetrates through the pressing plate main body and the protruding main body respectively. The movable part is provided with a fixing hole, the connecting bolts respectively penetrate through the through holes, and the connecting bolt is partially positioned in the fixing hole and is in threaded connection with the movable part. The second adjusting nut is sleeved on the connecting bolt and is in threaded connection with the second screwing part, and the second adjusting nut abuts against one side, away from the protruding main body, of the pressing plate main body. Through elasticity second adjusting nut to adjust the distance between movable part and the protruding main part, can adjust first adjusting nut and second adjusting nut simultaneously and realize that the movable part acts on the pressure of sealing ring.

In one embodiment, the evaporation body 100 is provided with an annular boss disposed around the mounting hole, and the packing elements are connected to the annular boss, so that the packing elements are preferably connected to the annular boss. In one embodiment, the packing element abuts against the annular boss, so that the packing element is tightly connected with the annular boss. In this embodiment, the annular boss, the packing member and the pressing plate are all disposed coaxially with the transmission shaft 212, so that the transmission sealing device can better seal the gap between the transmission shaft 212 and the evaporation body 100.

In one embodiment, the end of the annular boss adjacent the pressure plate is provided with a flange portion disposed around the mounting hole. The packing is abutted against the flange portion, so that the packing is abutted against the annular boss. In one embodiment, the packing comprises a packing body and a reinforcing plate which are connected, and the filling groove and the through hole are both arranged in the packing body. The packing body is abutted against the flange portion via the reinforcing plate, and the packing is abutted against the flange portion. In this embodiment, the packing body is welded to the reinforcing plate, so that the packing body is firmly connected to the reinforcing plate. In other embodiments, the packing element body and the reinforcing plate can also be integrally formed, so that the structure of the transmission sealing device is more compact.

In one embodiment, the transmission sealing device further comprises a clamping piece, and two sides of the clamping piece elastically abut against the reinforcing plate and the flange portion respectively, so that the reinforcing plate is tightly abutted against the flange portion. In this embodiment, the clamping member is of an annular gasket construction. In particular, the clamping member is a sealing rubber ring.

In one embodiment, the transmission sealing device further comprises a stop ring, the stop ring is sleeved on the annular boss, and the stop ring is connected with the filling member, so that the filling member is connected with the evaporation body 100. In this embodiment, the stop ring abuts against a side of the flange portion away from the reinforcing plate, so that the stop ring is limited on the flange portion. In one embodiment, the stop ring is welded to the flange portion such that the stop ring is securely connected to the flange portion.

In one embodiment, the transmission sealing device further comprises a connecting assembly, wherein the connecting assembly is respectively connected with the packing element and the stop ring, and the flange part is clamped between the packing element and the stop ring, so that the packing element is reliably connected to the evaporation body 100. In one embodiment, the connecting assembly comprises a fixing bolt and a locking nut, the packing element is provided with a first mounting hole, the stop ring is provided with a second mounting hole, the fixing bolt is respectively arranged in the first mounting hole and the second mounting hole in a penetrating manner, and the locking nut abuts against one side of the stop ring, which is far away from the packing element, so that the connecting assembly connects the packing element and the stop ring together. In one embodiment, the connecting assembly further comprises an anti-loosening element, the anti-loosening element is sleeved on the fixing bolt and is respectively abutted against the stop ring and the locking nut, so that the fixing bolt and the locking nut are prevented from being easily loosened and prevented from loosening.

In one embodiment, the descaling device 200 further comprises a bearing seat assembly, the bearing seat assembly is located at the periphery of the evaporation body 100 and connected with the evaporation body 100, and the bearing seat assembly is sleeved on the transmission shaft 212 and rotatably connected with the transmission shaft 212. In the present embodiment, the bearing housing assembly is connected with the evaporation body 100 and the transmission shaft 212, respectively.

In one embodiment, the descaling device 200 further comprises a frame 240 and a brush assembly. The frame is located in the evaporation body 100 and moves relative to the evaporation body 100, and the frame is connected with the transmission shaft 212, so that the power output end of the driving mechanism can transmit power to the frame through the transmission shaft 212. The brush assembly is disposed on the frame such that the brush assembly can move with the frame relative to the evaporation body 100. In the present embodiment, the transmission shaft 212 is connected to the frame through a rack and pinion mechanism, so that the rotational power on the transmission shaft 212 is transmitted to the frame to drive the frame to move relative to the evaporation body 100.

In one embodiment, a bearing housing assembly includes a base plate, a mounting plate, a first adjustment assembly, a bearing housing, and a second adjustment assembly. The substrate is connected to the evaporation body 100. The substrate is provided with a first through hole. In one embodiment, the mounting plate is arranged in parallel with the substrate, and the mounting plate is provided with a second through hole and a waist-shaped hole. The first adjusting component is respectively arranged in the first through hole and the second through hole in a penetrating mode. In one embodiment, the bearing seat is located on a side of the mounting plate facing away from the base plate, and the bearing seat is attached to the mounting plate. The first adjusting component adjusts the distance between mounting panel and the base plate, adjusts the mounting panel promptly for the base plate at the distance of vertical direction, is the regulation of the mounted position of the bearing frame that realizes the Z axle direction promptly, because the bearing frame is connected on the mounting panel to realize the regulation of bearing frame in upper and lower direction.

In one embodiment, the bearing housing is sleeved on the transmission shaft 212 and is rotatably connected with the transmission shaft 212. The connecting hole has been seted up to the bearing frame, and the second adjusting part wears to locate waist shape hole and connecting hole respectively for the bearing frame is connected with the mounting panel, adjusts the bearing frame promptly for the mounting panel in the position of front and back direction, is the regulation of the mounted position of the bearing frame that realizes the Y axle direction promptly.

First adjusting part is used for adjusting the distance between mounting panel and the base plate, makes the distance between mounting panel and the base plate adjust as required, because the bearing frame is connected with the mounting panel to make the first adjusting part of distance accessible between bearing frame and the base adjust. Because the second adjusting component respectively wears to locate waist shape hole and connecting hole, when the relative position between bearing frame and the mounting panel need be adjusted, at first loosen the second adjusting component, then adjust the relative position of bearing frame and mounting panel, at last elasticity second adjusting component. Therefore, the relative position of the bearing seat and the base can be adjusted through the first adjusting assembly and/or the second adjusting assembly. Because the base plate is connected with evaporation main body 100, the relative position of bearing frame and evaporation main body 100 can be adjusted through the first adjusting component and/or the second adjusting component, so that the relative position of bearing frame and evaporation main body 100 can be adjusted in multiple directions, and the problem that the installation convenience and adaptability of descaling device 200 are poor is solved.

In one embodiment, the first adjustment assembly includes a connection post, a first support member, and a first locking member. The connecting column is respectively arranged in the first through hole and the second through hole in a penetrating way. The outer wall of the connecting column is provided with a first screwing part, and the first supporting piece and the first locking piece are sleeved on the first screwing part and screwed with the first screwing part. First support piece and first locking piece are located the both sides of mounting panel respectively, make mounting panel fixed mounting in the spliced pole, adjust the relative hookup location of mounting panel and spliced pole through the first support piece of elasticity and first locking piece simultaneously.

Specifically, when the distance between the mounting plate and the base plate needs to be adjusted, the first support piece is screwed in the direction away from the first locking piece, and the first locking piece is screwed in the direction close to the first support piece. Alternatively, the first locking member is twisted in a direction away from the first support member and the first support member is twisted in a direction closer to the first locking member. In this embodiment, the connecting column is a stud structure. The first support member and the first locking member are both nuts. In other embodiments, the connecting post may also be a screw structure. Of course, the connecting column is not limited to a stud structure or a screw structure, and may also be a stud structure with threads on both ends.

In one embodiment, the first adjustment assembly further comprises a second support and a second retaining member. The outer wall of the connecting column is also provided with a second screwing part. The second support piece and the second locking piece are sleeved on the second screwing part and are screwed with the second screwing part. The second support piece and the second locking piece are respectively positioned on two sides of the base plate, so that the base plate is fixedly arranged on the connecting column, and meanwhile, the relative connecting position of the base plate and the connecting column is adjusted by loosening and tightening the second support piece and the second locking piece, so that the relative distance between the mounting plate and the base plate is adjusted. The relative distance between the mounting plate and the base plate can be adjusted by loosening and tightening the first supporting piece and the first locking piece, so that the bearing seat assembly can be adjusted more flexibly. In this embodiment, the second support member and the second locking member are both nuts.

In one embodiment, the second screwing part is connected with the first screwing part, and the spiral direction of the second screwing part is the same as that of the first screwing part, so that the screwing position of the first support and the connecting column can be in the first screwing part or the second screwing part. In a similar way, the first locking piece, the second locking piece and the second locking piece can be screwed in the first screwing part or the second screwing part, so that the positions of the first supporting piece, the first locking piece, the second supporting piece and the second locking piece connected to the connecting column can be flexibly adjusted, and the use convenience of the bearing seat assembly is improved. In the present embodiment, the first screwing portion and the second screwing portion are integrally formed as a screw structure. In another embodiment, the first threaded portion and the second threaded portion may not have a connection relationship, that is, the first threaded portion and the second threaded portion are disposed separately, for example, the first threaded portion and the second threaded portion are respectively disposed at two ends of the connection column.

In one embodiment, the second adjustment assembly includes a connector and a retaining nut. The connecting piece includes connecting piece body and backstop portion that is connected, and the connecting piece body sets up with backstop portion is coaxial. The cross-sectional diameter of the connector body is smaller than the cross-sectional diameter of the stopper portion. In this embodiment, the connecting member body and the stopper portion are integrally formed, so that the connecting member is compact in structure. In particular, the connection may be a bolt.

In one embodiment, the connecting piece body is respectively arranged in the waist-shaped hole and the connecting hole in a penetrating manner, and the stopping part is positioned on the surface of the mounting plate, which is far away from the bearing seat, so that the stopping part is limited on the surface of the mounting plate, which is far away from the bearing seat. The fixing nut is sleeved on the connecting piece body and is in threaded connection with the connecting piece body. The fixing nut butt is in the one side that deviates from the mounting panel of bearing frame, because backstop portion is spacing in the one side that deviates from the bearing frame of mounting panel, screws up fixing nut, makes fixing nut spiro union in the connecting piece body and dies the bearing frame lock, ensures that bearing frame and mounting panel are firmly connected. When the connecting position of the bearing seat and the mounting plate needs to be adjusted, the fixing nut is loosened, the position of the connecting piece in the kidney-shaped hole is adjusted, and then the fixing nut is locked, so that the adjusting of the connecting position of the bearing seat and the mounting plate is realized.

In one embodiment, the bearing housing assembly further includes a first retaining member and a second retaining member. The mounting panel is all located to first locating part and second locating part, and first locating part and second locating part respectively with the both ends butt of bearing frame. When the connecting position of the bearing seat and the mounting plate needs to be adjusted, the fixing nut is loosened, the first limiting part and the second limiting part are loosened to adjust the position of the connecting piece in the kidney-shaped hole, the bearing seat is moved to a preset position relative to the mounting plate, then the fixing nut is locked, and the adjusting of the connecting position of the bearing seat and the mounting plate is achieved. Because the two ends of the bearing seat are respectively abutted against the first limiting part and the second limiting part, the bearing seat is prevented from moving towards the direction close to the first limiting part or the second limiting part relative to the mounting plate, and the bearing seat and the mounting plate are reliably positioned. In this embodiment, the first limiting member and the second limiting member both abut against the bearing seat in the Y-axis direction to limit the position of the bearing seat in the Y-axis direction.

In one embodiment, the first limiting member includes a first fixing plate and a first positioning column. The first fixing plate is connected with the mounting plate. In this embodiment, the first fixing plate is welded or glued to the mounting plate. The first fixing plate is provided with a first screw hole, and the first positioning column penetrates through the first screw hole and is in threaded connection with the first fixing plate. The first positioning column is abutted against one end of the bearing seat. Through twisting first locating column to adjust the relative spiro union position of first locating column and first fixed plate, make first locating column can carry out the location according to the relative position of bearing frame and mounting panel and adjust.

In one embodiment, the second position-limiting member includes a second fixing plate and a second positioning column, and the second fixing plate is connected to the mounting plate. In this embodiment, the second fixing plate is welded or glued to the mounting plate. The second fixing plate is provided with a second screw hole, a second positioning column penetrates through the second screw hole and is in threaded connection with the second fixing plate, and the second positioning column abuts against the other end of the bearing seat. The second positioning column is screwed to adjust the relative screw connection position of the second positioning column and the second fixing plate, so that the second positioning column can be positioned and adjusted according to the relative position of the bearing seat and the mounting plate.

In one embodiment, the substrate includes a substrate body, a fixing portion, and a locking member. The base plate body and the mounting plate are arranged in parallel, and the base plate body is provided with a plurality of first mounting holes. In this embodiment, the first mounting holes are distributed at intervals on the substrate body. In one embodiment, the first through hole is opened in the substrate body. The fixing portion is used for connecting with the evaporation main body 100, and the fixing portion is provided with a plurality of second mounting holes. In this embodiment, the fixing portion is welded to the evaporation body 100. The second mounting holes are distributed on the fixing portion at intervals. In one embodiment, each first mounting hole is correspondingly communicated with the corresponding second mounting hole, and the locking member is respectively arranged in one first mounting hole and the corresponding second mounting hole in a penetrating mode.

When different relative connecting positions of the fixing part and the substrate body need to be adjusted, the locking part is respectively inserted into different first mounting holes and corresponding second mounting holes, and the adjusting of the connecting positions of the fixing part and the substrate body is realized. Specifically, when the relative connection position of the substrate body and the fixing portion needs to be adjusted, the locking member is loosened and detached, so that the locking member penetrates through one of the first mounting holes and the corresponding second mounting hole respectively, and the adjustment of the relative connection position of the substrate body and the fixing portion is realized.

Because the base plate body passes through the fixed part and is connected with evaporation main part 100, makes the relative position of bearing frame and evaporation main part 100 obtain adjusting, and the relative position of bearing frame and evaporation main part 100 can also be adjusted through first adjusting part and second adjusting part in addition, makes the relative position's of bearing frame and evaporation main part 100 regulation more nimble. In the present embodiment, the relative connection position between the fixing portion and the substrate body is adjusted, that is, the adjustment of the mounting position of the bearing seat in the X-axis direction is realized.

In one embodiment, the descaling device 200 further comprises a support base, a guide rail, a rotating shaft and a roller. The supporting base is disposed in the evaporation body 100. The guide rail is arranged on the supporting seat. The frame is connected with the power output end of the driving mechanism, and the frame is provided with an accommodating groove. The rotating shaft is connected to the frame, and the rotating shaft part is positioned in the accommodating groove. In one embodiment, the roller is located in the accommodating groove, and the roller is sleeved on the rotating shaft and is rotatably connected with the rotating shaft. In one embodiment, the roller is provided with a rolling fit groove, and the guide rail part is positioned in the rolling fit groove, so that the roller is in rolling connection with the guide rail.

As the driving mechanism drives the frame to move, the frame is moved in the evaporation body 100 relative to the evaporation body 100. Since the supporting seat is disposed in the evaporation main body 100 and supports the guide rail, the guide rail is fixed in the evaporation main body 100. Because the rotating shaft is connected with the frame, the rotating shaft part is positioned in the accommodating groove and is rotationally connected with the roller, and the roller is provided with the rolling fit groove which is in rolling fit with the guide rail, the roller rolls relative to the guide rail all the time, and the rotating part of the roller relative to the rotating shaft is positioned in the accommodating groove, the situation that high-calcium wastewater splashes into the accommodating groove and erodes the rotating position of the roller is not easy to occur, the roller is not easy to rust and block, thereby the descaling device 200 can reliably operate, and the problem that the operation of the descaling device 200 is easy to lose efficacy is solved.

In order to make the roller more difficult to rust and block, in one embodiment, the accommodating groove is arranged on one side of the frame facing the guide rail, so that waste water is prevented from splashing into the accommodating groove, and the roller is more difficult to rust and block.

In order to better accommodate the roller and prevent waste water from splashing, in one embodiment, the cross section of the accommodating groove is U-shaped, so that the accommodating groove can better accommodate the roller and prevent waste water from splashing.

In one embodiment, the frame is provided with a fixing hole communicated with the accommodating groove, and the rotating shaft is partially positioned in the fixing hole and connected with the frame, so that the rotating shaft is reliably connected with the frame.

In order to make the connection between the rotating shaft and the frame more firm, in one embodiment, the number of the fixing holes is two, and the rotating shaft is respectively inserted into the two fixing holes, so that the connection between the rotating shaft and the frame is more firm.

In one embodiment, the descaling device 200 further comprises a positioning member. The rotating shaft part is positioned at the periphery of the frame. The rotating shaft is provided with a positioning hole. The positioning piece is positioned in the positioning hole and connected with the rotating shaft, and the part of the positioning piece is positioned outside the positioning hole and is abutted against the frame, so that the rotating shaft is limited at the periphery of the frame, the rotating shaft is prevented from being separated from the frame, and the rotating shaft is reliably connected with the frame. In this embodiment, the positioning element is a positioning pin structure. The two ends of the rotating shaft are located on the periphery of the frame, and the end parts of the two ends of the rotating shaft are provided with positioning holes. The number of the positioning pieces is two, the two positioning pieces are respectively positioned in the corresponding positioning holes, so that the two ends of the rotating shaft are respectively limited at the periphery of the frame, the two ends of the rotating shaft are prevented from being separated from the frame, and the rotating shaft is reliably connected with the frame.

In order to make the roller rotate better relative to the rotating shaft, in one embodiment, the roller is arranged coaxially with the rotating shaft, so that the roller can rotate better relative to the rotating shaft. In order to ensure that the roller is always in matched rolling connection with the guide rail, in one embodiment, the rolling matching groove is formed around the circumference of the roller in a circle, so that the roller is always in matched rolling connection with the guide rail.

In one embodiment, the cross section of the contact part of the guide rail and the rolling fit groove is an arc-shaped bulge. The cross section of the rolling fit groove is an arc-shaped groove, so that the rolling fit groove is matched with the shape of the guide rail, the roller is reliably connected on the guide rail in a rolling manner, and the rolling fit groove has the advantages of good guiding performance, chemical corrosion resistance, good lubricating performance, simplicity in manufacture, low cost, simplicity in installation, simplicity in operation, less maintenance and the like.

In one embodiment, the guide rail is of a cylindrical structure, so that the guide rail is simple in structure, the guide rollers are restrained and guided better, and the processing difficulty of the guide rail is greatly reduced. In one embodiment, the through holes are formed in the guide rail along the axial direction of the guide rail, so that the weight of the guide rail is light, and meanwhile, the material of the guide rail is saved. In this embodiment, the guide rail has a hollow structure.

In one embodiment, the outer wall of the guide rail is provided with a first stop plate and a second stop plate along the axial direction of the guide rail. The first stop turning plate and the second stop turning plate are arranged in parallel with the frame. The contact part of the guide rail and the rolling fit groove is positioned between the first stop turnover plate and the second stop turnover plate. When the roller rolls relative to the guide rail and swings left and right, the frame can abut against the first stop turning plate or the second stop turning plate so as to prevent the roller from rolling and swinging too much relative to the guide rail, and therefore the rolling process of the roller relative to the guide rail is more stable.

In one embodiment, the evaporation body 100 includes an air inlet duct, a body, and a heat exchange duct. The air inlet pipe is connected with the machine body. The steam inlet is opened to the tip of keeping away from the organism of intake pipe to steam inlet through the intake pipe gets into steam. The organism is formed with and holds chamber, steam outlet, first mounting hole and second mounting hole. The steam outlet, the first mounting hole and the second mounting hole are communicated with the accommodating cavity. In this embodiment, the descaling device 200 is disposed through the first mounting hole and connected to the machine body. The descaling device 200 is partially arranged on the periphery of the machine body and partially arranged in the accommodating cavity of the machine body so as to descale the outer wall of the heat exchange tube in the accommodating cavity and avoid the problem of scaling of the outer wall of the heat exchange tube. In this embodiment, the fastening hole is formed in the body.

In one embodiment, the descaling device 200 brushes the heat exchange tubes inside the body. In one embodiment, the descaling device 200 further comprises a brush assembly. In one embodiment, the drive mechanism further comprises a motor, a gear and a rack. The motor is arranged on the periphery of the machine body. The transmission shaft 212 is connected with a power output shaft of the motor, so that the motor drives the transmission shaft 212 to rotate in a reciprocating manner. The gear sleeve is arranged on the transmission shaft 212. The supporting seat is connected with the inner wall of the machine body. The supporting seat supports the frame, and the frame is connected with the supporting seat in a rolling manner, namely the frame rolls on the supporting seat. The rack is connected to the frame and is in meshed transmission with the gear. When the motor drives the transmission shaft 212 to rotate relative to the machine body, the transmission shaft 212 drives the gear to rotate, and the gear rotates to be meshed with the transmission rack, so that the rack drives the frame to move relative to the supporting seat.

In one embodiment, the motor is mounted on the periphery of the body. The transmission shaft 212 penetrates through the first mounting hole and is rotatably connected with the machine body, so that part of the transmission shaft 212 is positioned on the periphery of the machine body and is connected with the motor, and part of the transmission shaft 212 is positioned in the accommodating cavity. The gear is located in the accommodating cavity and sleeved on the transmission shaft 212. In one embodiment, the supporting seat is located in the accommodating cavity and connected with the machine body. In this embodiment, the supporting base is a long strip-shaped base structure. The supporting seat is welded on the inner wall of the machine body.

In this embodiment, the motor is a reduction motor. In one embodiment, the number of the first mounting holes is two, and the transmission shafts 212 respectively penetrate through the two first mounting holes and are rotatably connected with the machine body, so that the transmission shafts 212 in the accommodating cavities have better bending strength.

In one embodiment, the outer wall of the gear is coated with a titanium layer, so that the gear has better corrosion resistance. It can be understood that in other embodiments, the whole gear is made of titanium, so that the corrosion resistance of the gear is better. Furthermore, the outer wall of the rack is coated with a titanium layer, so that the rack has better corrosion resistance. It can be understood that in other embodiments, the entire rack is made of titanium, so that the rack has better corrosion resistance.

Further, the surface of the transmission shaft 212 in the accommodating cavity is coated with a titanium layer, so that the transmission shaft 212 has better corrosion resistance. It is understood that in other embodiments, the entire shaft 212 is made of titanium, which improves the corrosion resistance of the shaft 212. Because the rack, the gear and the transmission shaft 212 are all coated with the titanium layers, the descaling device 200 has good structural performance, so that the descaling device 200 has better chemical corrosion resistance, the corrosion rate of the descaling device 200 is less than or equal to 0.015 mm/year, meanwhile, the transmission efficiency of the descaling device 200 is improved to 85%, and the transmission efficiency of the descaling device 200 is greatly improved. The descaling device 200 has the advantages of simple manufacture, low cost, simple installation, less maintenance and the like, and is suitable for an MVR online cleaning mechanism.

In one embodiment, the heat exchange tube penetrates through the second mounting hole and is connected with the machine body. In this embodiment, the heat exchange tube is welded to the machine body, so that the heat exchange tube is tightly connected to the machine body. The heat exchange tube is communicated with the air inlet tube, so that steam in the air inlet tube enters the heat exchange tube. In one embodiment, the machine body comprises a machine body and a plurality of reinforcing plates, and the accommodating cavity, the steam outlet, the first mounting hole and the second mounting hole are formed in the machine body. A plurality of reinforcing plates are located and hold the intracavity and with this body coupling of machine, make the overall structure of organism have better intensity. In one embodiment, the heat exchange tubes are fixed to a plurality of reinforcing plates, respectively, such that each reinforcing plate supports and fixes the heat exchange tube. In this embodiment, each reinforcing plate is provided with a through hole, and the heat exchange tube is respectively arranged in the through holes of the plurality of reinforcing plates in a penetrating manner and is connected with the corresponding reinforcing plate.

In one embodiment, the supporting base is connected to the plurality of reinforcing plates respectively, that is, the supporting base is located above the plurality of reinforcing plates, so that the plurality of reinforcing plates support the supporting base together, so that the supporting base is connected to the inner wall of the machine body. In one embodiment, the number of the supporting seats is two, and the two supporting seats are arranged in parallel.

In one embodiment, the frame includes a first bracket, a second bracket, and a fixture. The first support is connected with one of the supporting seats in a rolling mode, and the second support is connected with the other supporting seat in a rolling mode, so that the two supporting seats respectively bear the first support and the second support. The two ends of the fixing piece are respectively connected with the first support and the second support, so that the first support, the second support and the fixing piece are connected together.

In one embodiment, a brush assembly is attached to the frame that brushes the heat exchange tube when the motor drives the drive shaft 212 to rotate. In this embodiment, the brush assembly is connected to the fixing member such that the brush assembly is connected to the frame. In this embodiment, the number of the fixing members is plural, and the plurality of fixing members are arranged in parallel with each other. Each fastener is located above the area between two adjacent reinforcing plates. In this embodiment, each of the fixing members has a plurality of brush assemblies, and the plurality of brush assemblies are disposed side by side, such that the plurality of brush assemblies reciprocate relative to the body along with the corresponding fixing members.

In one embodiment, the plurality of heat exchange tubes are arranged side by side in a plurality of rows in a cross-sectional direction perpendicular to a moving direction of the fixing member. In the present embodiment, the number of heat exchange tubes per column is different. It is understood that in other embodiments, the number of heat exchange tubes in each column may also be the same. Specifically, a plurality of heat exchange tubes are arranged in a rectangular array form to form a heat exchange tube bundle with a rectangular distribution profile. In one embodiment, each brush assembly is positioned between two adjacent rows of heat exchange tubes, and the brush assemblies brush the outer walls of the heat exchange tubes. When the brush component moves back and forth relative to the machine body along with the frame, the brush component can repeatedly brush the outer wall of the heat exchange tube so as to prevent the surface of the heat exchange tube from scaling. In one embodiment, each brush assembly comprises a fixed rod and bristles arranged on the outer wall of the fixed rod, and the fixed rod is connected to the frame so that the brush assembly can brush the outer wall of the heat exchange tube. In this embodiment, the number of the brush hairs is plural, so that the brush assembly can better brush the outer wall of the heat exchange tube.

In order to enable the rack to drive the frame to roll relative to the machine body, in one embodiment, the rack is arranged on the first support or the second support, namely the rack is arranged on the first support, or the rack is arranged on the second support, so that the rack is connected to the frame. Because the first support is connected to the second support through the fixing piece, the rack drives the frame to roll relative to the machine body. In the present embodiment, the number of the rack and the gear is one.

It is understood that in other embodiments, the number of racks and gears is not limited to one. In one embodiment, the number of the gears and the number of the racks are two, the two racks are respectively in meshing transmission with the two gears, one rack is arranged on the first support, and the other rack is arranged on the second support. Because first support and second support all are equipped with the rack, and two racks correspond the meshing transmission with two gears respectively, make the motor pass through transmission shaft 212 and drive the frame better and roll for the organism.

The motor is arranged at the periphery of the machine body, and the transmission shaft 212 is connected with a power output shaft of the motor, so that the motor drives the transmission shaft 212 to rotate equivalently to the machine body; steam enters through the air inlet pipe, and the heat exchange pipe penetrates through the second mounting hole and is communicated with the air inlet pipe, so that the steam enters the heat exchange pipe. When the evaporator material is sprayed to the surface of the heat exchange tube, the evaporator material flows downwards along the heat exchange tube under the action of gravity to form a film on the surface of the heat exchange tube, the energy of the steam introduced into the heat exchange tube is transferred to the evaporator material after being condensed, the material steam energy forms the film to be evaporated, so that secondary steam is generated, the secondary steam is discharged through a steam outlet, and then enters a next-effect evaporator or an MVR (mechanical vapor recompression) steam compressor after gas-liquid separation; meanwhile, the motor drives the rotating shaft to rotate in a reciprocating mode, the rotating shaft drives the gear to rotate, the gear is meshed with the transmission rack, the rack is connected to the frame, the frame is connected with the supporting seat in a rotating mode, the supporting seat supports the frame, the frame moves in a reciprocating mode relative to the machine body, namely, the frame rolls back and forth relative to the machine body, the hairbrush assembly is connected to the frame, the hairbrush assembly moves in a reciprocating mode relative to the machine body along with the frame, the hairbrush assembly can wipe the heat exchange tube when the motor drives the transmission shaft 212 to rotate, the hairbrush assembly does reciprocating cleaning on the surface of the heat exchange. Because the motor drives the frame through the gear rack to roll, which is equivalent to a supporting seat, the problem that a chain of the driving assembly is easy to rust and even is blocked is avoided.

Further, the heat exchange system also comprises a material conveying pipe, and the material conveying pipe penetrates through the machine body and is connected with the machine body. Furthermore, the machine body is provided with a third through hole, and the material conveying pipe is arranged in the third through hole in a penetrating manner and is connected with the machine body, so that the material conveying pipe is arranged in the machine body in a penetrating manner and is connected with the machine body. In this embodiment, the material delivery pipe is of a plastic hose structure. In one embodiment, the heat exchange system further comprises a spray assembly. The spraying component is provided with a liquid inlet hole. The feed delivery pipe is communicated with the liquid inlet hole. The liquid outlet of the spraying mechanism is arranged towards the plurality of heat exchange tubes, so that the evaporator material is sprayed onto each heat exchange tube through the liquid outlet of the spraying mechanism.

In one embodiment, the spray mechanism comprises a liquid inlet pipe and a spray head. The liquid inlet pipe is connected with the material conveying pipe. The shower head is located and holds the intracavity and locate on the feed liquor pipe, and the liquid outlet is seted up in the shower head. The shower head is towards a plurality of heat exchange tube settings, makes the liquid outlet of spraying mechanism towards a plurality of heat exchange tube settings. In one embodiment, the spray header comprises a plurality of spray header units, the plurality of spray header units are arranged on the liquid inlet pipe side by side, and each spray header unit is provided with a liquid outlet, so that the spray mechanism has a better spray effect. Furthermore, the plurality of spray header units are arranged at intervals, so that the evaporator material is sprayed onto the heat exchange tubes at corresponding positions through the spray mechanism, and the spray mechanism can uniformly spray the evaporator material onto the plurality of heat exchange tubes. In one embodiment, the spray cone angle of the liquid outlet of each showerhead unit is 30 to 60 °. In this embodiment, the spray cone angle of the liquid outlet of each shower head unit is 45 °, so that the material sprayed by the shower head units has a better conical effect. In one embodiment, each spray head unit is rotatably connected to the liquid inlet pipe, so that the spray head units rotate relative to the liquid inlet pipe during the process of spraying the evaporator materials, and the uniformity of spraying the evaporator materials is improved. Furthermore, the material conveying pipe is positioned in the liquid inlet hole and connected with the liquid inlet pipe, so that the material conveying pipe is communicated with the liquid inlet hole.

In one embodiment, the driving mechanism further comprises a coupler, and two ends of the coupler are respectively connected with the power output shaft of the motor and the transmission shaft 212, so that the power of the motor is better transmitted to the transmission shaft 212. In the present embodiment, the coupling is a quincunx elastic coupling as a connection part of the reduction motor and the transmission shaft 212. It is understood that in other embodiments, the driving mechanism is not limited to being a motor driving mechanism, but may be a cylinder driving mechanism.

It is understood that in other embodiments, the driving mechanism is not limited to the motor gear-rack structure, but may be a motor screw-nut structure. In one embodiment, the driving mechanism comprises a motor, a screw rod and a nut, the motor is installed on the periphery of the machine body, a power output shaft of the motor is connected with the screw rod, and the machine body is provided with a third through hole. The screw rod is arranged in the third through hole in a penetrating mode and is connected with the machine body in a rotating mode, and the nut is sleeved on the screw rod and is connected with the frame. When the motor drives the screw rod to rotate, the screw rod drives the nut to move so as to drive the frame to reciprocate relative to the machine body.

In order to arrange the driving mechanism on the machine body, in one embodiment, a supporting plate is arranged on the periphery of the machine body, and the driving mechanism is arranged on the supporting plate, so that the driving mechanism is arranged on the machine body. In order to avoid the problem that the heat of the machine body is conducted to the driving mechanism through the supporting plate, in one embodiment, the heat exchange system further comprises a heat insulation mechanism, and the heat insulation mechanism is respectively connected with the supporting plate and the machine body, so that the supporting plate and the machine body are separated by the heat insulation mechanism. The heat insulation mechanism has heat insulation performance, and the problem that the heat of the machine body is conducted to the driving mechanism through the supporting plate due to the fact that the machine body is conducted to the supporting plate through the heat insulation mechanism is avoided. In this embodiment, the fixing frame is connected to the supporting plate, so that the fixing frame is connected to the evaporation main body.

In one embodiment, the heat insulation mechanism comprises a connecting plate, and the connecting plate is respectively connected with the machine body and the supporting plate. The side of connecting plate deviating from the organism is formed with the heat insulation layer to the heat of organism conducts to the backup pad through the connecting plate. It is understood that in other embodiments, the insulating layer may be omitted. The connecting plate is a plate body with heat insulation performance.

In order to further improve the heat insulation performance of the heat insulation mechanism, in an embodiment, the heat insulation mechanism further includes a heat dissipation seat, the heat dissipation seat is disposed in parallel with the support plate, and the heat dissipation seat is connected to the connecting plate, so that the connecting plate conducts heat to the heat dissipation seat to exchange heat with the outside air through the heat dissipation seat. Furthermore, the heat dissipation seat comprises a metal heat conduction layer and a plurality of heat dissipation fins arranged on the metal heat conduction layer, the metal heat conduction layer is connected with the connecting plate, and the plurality of heat dissipation fins are arranged on the metal heat conduction layer at intervals, so that the connecting plate can quickly conduct heat to the metal heat conduction layer and conduct the heat to the heat dissipation fins through the metal heat conduction layer, and therefore the plurality of heat dissipation fins and air are subjected to heat exchange, and the heat dissipation performance of the heat insulation mechanism is improved.

Further, the heat exchange system also comprises a liquid discharge pipe communicated with the accommodating cavity of the machine body, so that waste liquid generated after materials of the evaporator are subjected to heat conduction and vaporization through the heat exchange pipe is discharged out of the accommodating cavity through the circulating mechanism. In order to save the material consumption of the evaporator and reduce the material waste, the heat exchange system further comprises a circulating mechanism, the circulating mechanism is respectively communicated with the liquid discharge pipe and the conveying pipe, so that the waste liquid is returned to the liquid inlet pipe through the circulating mechanism for recycling, the material consumption of the evaporator can be saved, and the material waste is reduced.

Further, heat transfer system still includes filtering mechanism, and on filtering mechanism located the drain pipe inner wall, filtering mechanism was used for the great granule of filter volume to the great granule of volume caused the jam to the feed liquor pipe in the waste liquid. In this embodiment, filtering mechanism includes filter screen and cladding in the frame that encloses at the filter screen edge, encloses the frame joint on the inner wall of fluid-discharge tube, realizes enclosing frame and fluid-discharge tube quick assembly disassembly, realizes simultaneously that the granule filters in the great waste liquid of volume, reaches the washing of follow-up filter screen. Furthermore, the peripheral wall of the enclosing frame is provided with a clamping protrusion, the inner wall of the filtering channel is provided with a clamping groove, and the clamping protrusion is clamped into the clamping groove to realize the clamping connection of the enclosing frame and the inner wall of the filtering channel. In this embodiment, the surrounding frame is an elastic plastic frame, so that the surrounding frame is elastically fastened to the inner wall of the filtering channel. Furthermore, the number of the clamping protrusions and the clamping grooves is multiple, the clamping protrusions are distributed at intervals along the circumferential direction of the enclosing frame, and each clamping protrusion corresponds to one corresponding clamping groove in a clamped mode.

Specifically, the circulation mechanism includes circulation pipeline and pump body, and the pump body is located on the circulation pipeline. The circulating pipeline is communicated with the liquid discharge pipe, so that the circulating mechanism can quickly discharge the waste liquid in the liquid discharge pipe to the outside of the machine body. In order to realize holding the quick discharge of intracavity waste liquid, furtherly, heat transfer system still includes the cock seat, and the drain hole with the fluid-discharge tube intercommunication is seted up to the bottom of organism, and the cock seat is located the drain hole and is connected with the organism, opens the cock seat and can realize quick discharge waste liquid, has improved the cleaning efficiency who holds the chamber bottom.

In one embodiment, the machine body is provided with a recovery hole communicated with the accommodating cavity, and the drain pipe is communicated with the accommodating cavity through the recovery hole. In order to improve the liquid discharge effect of the circulating mechanism, in one embodiment, the bottom of the inner wall of the accommodating cavity is of an arc-shaped curved surface structure, and the liquid discharge channel is formed in the bottom of the inner wall of the accommodating cavity, so that the circulating mechanism can rapidly discharge the waste liquid in the accommodating cavity.

In order to improve the cleaning efficiency of the bottom of the accommodating cavity, especially when more particles are deposited in the recycling hole, further, a fourth penetrating hole communicated with the accommodating cavity is formed in the machine body. The heat exchange system also comprises a flushing pipe and a control valve, wherein the flushing pipe is arranged in the fourth through hole in a penetrating way and is connected with the machine body. The flushing pipe is also communicated with the circulating pipeline, so that the liquid of the circulating pipeline can flush the inner wall of the recovery hole through the flushing pipe. The control valve is arranged on the flushing pipe. The flushing pipe is arranged close to the recovery hole, so that particle impurities in the recovery hole can be quickly cleaned by the flushing pipe, and the plug seat is opened, so that the cleaning liquid in the accommodating cavity can be discharged from the liquid discharge hole, and the cleaning convenience of the heat exchange system is improved. In this embodiment, the end that the flushing pipe is located and holds the intracavity sets up towards the recovery hole, makes on the flushing pipe can wash recovery hole inner wall perpendicularly, has improved the washing efficiency in recovery hole.

In one embodiment, the heat exchange system further comprises a pressing wheel assembly, the pressing wheel assembly is arranged in the machine body and is abutted to the frame in a rolling mode, the situation that the frame shakes relative to the supporting seat in the moving process is avoided, and the frame rolls more stably. In order to enable the pressing wheel assembly to better roll and abut against the frame body, in one embodiment, the pressing wheel assembly abuts against one side of the frame body, which is away from the first roller, so that the pressing wheel assembly better rolls and abuts against the frame body.

In one embodiment, the pressing wheel assembly comprises a mounting seat and a second roller, the mounting seat is arranged in the accommodating cavity and connected with the machine body, the pressing wheel assembly is arranged in the machine body, the second roller is rotatably connected with the mounting seat, and the second roller is in rolling contact with the frame body, so that the pressing wheel assembly is in rolling contact with the frame body. In order to avoid the overlarge rolling butting rigidity of the pinch roller assembly and the frame, the mounting seat is connected to the machine body in a sliding mode. The pinch roller assembly further comprises an elastic piece, and two ends of the elastic piece are respectively connected with the mounting seat and the machine body, so that the mounting seat is elastically connected to the machine body. When the frame has slight vibration in the rolling process, the frame compresses the elastic part through the mounting seat, so that the elastic part is extruded, and the pressing wheel assembly can rapidly absorb the slight vibration, thereby better avoiding overlarge rolling abutting rigidity of the pressing wheel assembly and the frame. Further, the mounting seat is formed with T type boss, and the organism has seted up the spout, and the boss is located the spout and with organism sliding connection, makes the mounting seat slide steadily for the organism.

The gear motor is connected with the transmission shaft 212 through a coupler, the gear on the rotating shaft transmits torque to the rack under the driving of the gear motor, so that the rack and the frame do linear motion, the gear motor rotates forwards and backwards, the brush assembly can do reciprocating linear motion, and the PLC control system controls the encoder to determine the stroke of each reciprocating motion. The brush component is fixed on the frame and positioned between two adjacent heat exchange tubes of the evaporator, and the brush does reciprocating cleaning without stopping on the surfaces of the heat exchange tubes, so that the functions of preventing the surfaces of the heat exchange tubes from scaling and removing scale are achieved.

The heat exchange system solves the problems that the heat exchange tube is easy to scale and is difficult to remove, the heat exchange system perfectly exerts the advantages of the system, the competitive advantage in the industry is enhanced, meanwhile, the medicament cost for cleaning the tube wall of the heat exchange tube by adopting a large amount of acid-base cleaning liquid is saved, and the operation cost of the heat exchange system is greatly reduced in the long term, namely, the heat exchange system is environment-friendly.

The transmission sealing device has the advantages of good structural performance, uniform pressure and simplicity in manufacturing, the sealing performance is adjusted through the adjusting bolt, the transmission sealing device can be made of corrosion-resistant materials such as titanium, the corrosion rate is less than or equal to 0.015 mm/year, the transmission sealing device has good chemical corrosion resistance and sealing performance, and the water leakage can be less than or equal to 8 drops/minute under the condition that the heat exchange system operates. Compared with other seals such as an O-shaped ring seal, the manufacturing cost of the transmission sealing device is 10% -20% lower, and the transmission sealing device is lower in manufacturing and simple to install. When changing, can loosen the first adjusting part of clamp plate, put into the packing groove the sealing ring can, follow-up need add pack the same operation can. The transmission sealing device has the advantages of simple operation, less maintenance and the like, and is suitable for a descaling device.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. A control mechanism for connection to a drive shaft of an evaporation body and a drive mechanism, respectively, the control mechanism comprising:

the positioning column is arranged at the mounting position;

2. The control mechanism as claimed in claim 1, wherein the fixing frame comprises a bottom plate and a bracket assembly connected with each other, the bottom plate is used for connecting with the evaporation body, the through hole is opened in the bracket assembly, and the sensor is arranged in the bracket assembly.

3. The control mechanism of claim 2, wherein the bracket assembly includes a support frame and a fixed block, the support frame is connected to the base plate, the through hole is opened in the support frame, the fixed block is connected to the support frame, and the sensor is connected to the fixed block.

4. The control mechanism of claim 3, wherein the number of the support frames is two, the two support frames are arranged in parallel, and two ends of the rotating shaft are respectively located in the through holes of the two support frames.

5. The control mechanism as claimed in claim 3, wherein the fixing block is provided with a connecting hole, and the sensor is inserted into the connecting hole and connected with the fixing block.

6. The control mechanism according to claim 5, wherein the sensor comprises a switch body, a first locking ring and a second locking ring, the outer wall of the switch body is provided with threads, the first locking ring and the second locking ring are both sleeved on the switch body, the first locking ring and the second locking ring are both in threaded connection with the switch body, and the first locking ring and the second locking ring respectively abut against two surfaces of the fixing block, so that the sensor is connected with the fixing block.

7. The control mechanism according to any one of claims 1 to 6, wherein the number of the mounting positions is plural, the plural mounting positions are distributed along a circumferential direction of the abutment wheel, and the positioning column is provided at one of the mounting positions.

8. The control mechanism of claim 7, wherein a plurality of said mounting locations communicate with one another.

9. A descaling device, comprising a control mechanism according to any one of claims 1 to 8 and a driving mechanism, wherein the driving mechanism comprises a transmission shaft, the abutting wheel abuts against the transmission shaft, the transmission shaft is used for being rotatably connected with the evaporation body, and the sensor is electrically connected with a control end of the driving mechanism.

10. A heat exchange system comprising an evaporation body and the descaling device according to claim 9, wherein the evaporation body is rotatably connected with the transmission shaft, and the fixing frame is connected with the evaporation body.