Energy-saving type wall heat exchange device for laser

Abstract

The present application relates to a kind of energy-saving interwall heat exchange device for laser applied to the relevant field of heat exchange equipment, by the U-shaped current collection channel located outside the heat exchange cavity and the setting of the flow collection cavity at the bottom of heat exchange sheet, when the present heat exchange device appears leakage condition, water at leakage point is diffused between two heat exchange sheets in disorder, the diffusion is broken when reaching current collection channel, resulting in that the liquid of leakage will finally be collected in current collection channel and flow to flow collection cavity, so that the water-absorbing patch is discolored, so that micro camera can identify leakage point at the early stage of micro leakage and before developing into external dripping, compared with the way of finding obvious external leakage in prior art, on the one hand, leakage point can be positioned to a specific heat exchange sheet, greatly reducing the complexity and difficulty of troubleshooting leakage point, on the other hand, leakage can be found when the liquid is relatively small, so that staff can maintain before fault expands, reduce loss.

Description

TECHNICAL FIELD

[0001] The present application relates to a heat exchange device, in particular to an energy-saving inter-wall heat exchange device for a laser applied to the related field of heat exchange equipment. BACKGROUND

[0002] High-power lasers are increasingly widely used in industrial processing, medical treatment, scientific research and other fields. The core components (such as laser crystals, gain fibers, pump sources, etc.) of high-power lasers will generate a large amount of waste heat during operation. If the heat cannot be timely and efficiently removed, it will cause the temperature of the device to rise, resulting in output power fluctuations, beam quality degradation, and even permanent damage to the equipment. Therefore, an efficient and reliable thermal management system is the key to ensuring the stable operation of high-power lasers. Inter-wall heat exchangers, especially plate heat exchangers, are widely used in laser cooling systems due to their compact structure, high heat exchange efficiency, and other advantages. For example, the Chinese patent with publication number CN100341210C discloses a high-efficiency low-mode cross-flow CO2 laser.

[0003] However, the conventional plate heat exchanger in the prior art still has several obvious defects when applied to this precise scenario: the plate heat exchanger generally has an external leakage problem, i.e., the aging of the sealing gasket or the corrosion of the plate causes the medium to leak to the external environment. Since the leaked water can be directly observed, the prior art usually does not set up a special external leakage monitoring system, but relies on visual observation to identify, such as the Chinese patent with publication number CN219576188U discloses a new laser cooling device. However, since the leaked medium often spreads disorderly along the plate bundle, it will flow and diffuse irregularly when it reaches the bottom of the plate bundle, causing the leakage area observed by the naked eye to be much larger than the actual leakage point, making it difficult to troubleshoot. Maintenance personnel often have to locate the leakage point by repeatedly disassembling, pressure testing and other tedious methods, which is time-consuming and labor-intensive, and is likely to cause the disassembly of non-faulty components due to misjudgment, increasing unnecessary downtime and maintenance costs. SUMMARY

[0004] In view of the above prior art, the technical problem to be solved by the present application is that the prior art directly uses visual observation to obtain the external leakage condition, which is relatively lagging, causing the actual leakage point area to be much larger than the actual leakage point, resulting in time-consuming and labor-intensive troubleshooting.

[0005] To solve the above problems, the application provides an energy-saving inter-wall heat exchange device for a laser, which comprises a front side plate, a rear side plate, two H-shaped cross beams located between and in contact with the two side plates, and a plurality of heat exchange plates located between the two H-shaped cross beams, the plurality of heat exchange plates are in contact with each other, and the two heat exchange plates at the edges are in contact with the front side plate and the rear side plate respectively, the front side plate and the rear side plate are fastened by a plurality of fastening screws, and the two fastening screws in the middle are movably penetrated through the two H-shaped cross beams, the upper H-shaped cross beam is fixedly connected with a clamping strip at the lower end, the lower H-shaped cross beam is provided with a limiting groove at the upper end, the heat exchange plate is provided with a clamping groove in the middle of the upper end, and the heat exchange plate is fixedly connected with a limiting block at the lower end, the limiting block and the limiting groove are matched with each other, and the clamping strip and the clamping groove are matched with each other.

[0006] The left inlet, the left outlet, the right outlet and the right inlet are fixedly connected with the four corners of the outer end of the front side plate respectively, the water passing holes are correspondingly drilled in the four corners of the heat exchange plate, the heat exchange cavities are further drilled in the left and right end faces of the heat exchange plate, the sealing strips are clamped on the outer edges of the heat exchange cavities and the outer edges of the water passing holes, the outer leakage monitoring unit is arranged on the heat exchange plate and the H-shaped cross beam, the outer leakage monitoring unit comprises a visual identification unit installed on the outer end of the middle of the H-shaped cross beam through an electric sliding rail, a plurality of pairs of current collecting channels drilled in the left and right end faces of the plurality of heat exchange plates, a plurality of pairs of current collecting cavities located in the plurality of limiting blocks, a sensing assembly slidably sleeved outside the limiting block, and an alarm fixedly installed on the outer end of the H-shaped cross beam, the current collecting channel comprises a liquid collecting groove drilled in the end face of the heat exchange plate, a semicircular groove drilled in the middle of the bottom wall of the liquid collecting groove, and a plurality of flow guiding holes drilled on the lower end of the heat exchange plate and the limiting block, and each pair of current collecting cavities is located below each pair of current collecting channels.

[0007] In the above-mentioned energy-saving inter-wall heat exchange device for a laser, when liquid extravasation occurs, the liquid extravasation can be collected and flow into the limiting block through the setting of the outer leakage monitoring unit, the sensing assembly changes inside, the miniature camera can obtain abnormal image information when the liquid micro-leakage has not developed into external dripping, compared with the prior art, the staff can maintain before the fault expands, reduce the loss, and effectively reduce the complexity and difficulty of checking the leakage point.

[0008] As a further improvement of the application, the two heat exchange cavities on the end face of the heat exchange plate are completely consistent in shape and are centrally symmetrically distributed.

[0009] As a further improvement of the present application, the visual recognition unit comprises two electric push rods arranged in a longitudinal and transverse manner, a miniature camera mounted on the top of the longitudinal electric push rod, and a miniature controller mounted on the I-shaped transverse beam, the miniature camera and the alarm are both signal connected with the miniature controller, the lower end of the longitudinal electric push rod is fixedly connected with the elongated end of the transverse electric push rod, the miniature camera is located between the heat exchange plate and the I-shaped transverse beam below, and the shooting end of the miniature camera is perpendicular to the limiting block, and the miniature camera and the alarm are not on the same side.

[0010] As a further improvement of the present application, the collecting cavity comprises a cavity communicated with a plurality of flow guide holes and an inclined hole communicated with the cavity and the outer wall of the limiting block, the inclined hole is inclined downward along the direction close to the outside.

[0011] As a further improvement of the present application, the sensing assembly comprises a transparent isolation ring sliding on the outer end of the limiting block, a water absorption patch attached to the outer wall of the limiting block, and an outer convex sealing ring embedded in the outer end of the limiting block, when the lower end of the transparent isolation ring is in contact with the I-shaped transverse beam, the upper end of the transparent isolation ring just abuts against the outer convex sealing ring.

[0012] As a further improvement of the present application, the water absorption patch covers the mouth of the two inclined holes, and the outer surface of the water absorption patch is coated with a water-sensitive indicator.

[0013] As a further improvement of the present application, the lower end of the transparent isolation ring is further provided with an annular cavity and a plurality of long holes communicated with the annular cavity, and a self-sealing unit is arranged in the annular cavity and the long holes, the self-sealing unit comprises a touch rod movably penetrating through the long hole, a piston ring in interference fit with the annular cavity, and a convex hollow rubber ring placed in the annular cavity, the lower end of the touch rod extends below the transparent isolation ring.

[0014] As a further improvement of the present application, the convex hollow rubber ring is saturatedly filled with air, and the length of the touch rod below the limiting block is not greater than the distance between the convex hollow rubber ring and the piston ring.

[0015] In summary, through the U-shaped collecting channel located outside the heat exchange cavity and the collecting cavity located at the bottom of the heat exchange plate, when the heat exchange device leaks, the water at the leakage point will diffuse disorderly between the two heat exchange plates, and the diffusion will be interrupted when it reaches the collecting channel, resulting in that the leaked liquid will finally collect in the collecting channel and flow into the collecting cavity, causing the water absorption patch to change color, and the miniature camera can identify the leakage point in the early stage of micro-leakage before it develops into external dripping, compared with the existing technology which discovers the leakage when the external leakage is obvious, on the one hand, the leakage point can be located to a specific heat exchange plate, greatly reducing the complexity and difficulty of troubleshooting the leakage point, on the other hand, the leakage can be discovered when the leaked liquid is relatively small, so that the staff can maintain before the fault expands, reducing the loss. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is an exploded view of the first embodiment of the present application;

[0017] Figure 2 is a perspective view of the first embodiment of the present application;

[0018] Figure 3 is a schematic view of heat exchange between the cooling medium and hot water in the heat exchange plate of the first embodiment of the present application;

[0019] Figure 4 is a perspective view of the leakage monitoring unit of the first embodiment of the present application;

[0020] Figure 5 is a front view of the leakage monitoring unit of the first embodiment of the present application; Figure 4 is an enlarged view of A in FIG. 4;

[0021] Figure 6 is a front view of the leakage monitoring unit of the first embodiment of the present application;

[0022] Figure 7 is a sectional view of the I-beam of the first embodiment of the present application;

[0023] Figure 8 is a front sectional view of the limiting block of the first embodiment of the present application;

[0024] Figure 9 is a side sectional view of the limiting block of the first embodiment of the present application;

[0025] Figure 10 is a side view of the limiting block of the first embodiment of the present application;

[0026] Figure 11 is a side view of the limiting block of the first embodiment of the present application when the heat exchange plate is not installed on the heat exchange device;

[0027] Figure 12 is a sectional view of the transparent isolation ring of the second embodiment of the present application;

[0028] Figure 13 is a comparison view of the transparent isolation ring of the second embodiment of the present application before and after the heat exchange plate is installed on the heat exchange device.

[0029] REFERENCE NUMERALS

[0030] 11 front side plate, 12 rear side plate, 13 I-beam, 1301 limit slot, 1302 alarm, 14 clamping strip, 1401 clamping groove, 101 left inlet, 102 left outlet, 103 right outlet, 104 right inlet, 2 heat exchange plate, 201 heat exchange cavity, 202 sealing strip, 3 fastening screw, 401 liquid collecting groove, 402 semicircular groove, 403 flow guide hole, 5 limit clamping block, 51 transparent isolation ring, 52 water absorption patch, 53 self-sealing unit, 531 touch rod, 532 convex hollow rubber ring, 533 piston ring, 501 cavity, 502 inclined hole, 503 convex sealing ring, 6 miniature camera, 601 electric push rod. DETAILED DESCRIPTION

[0031] The two embodiments of the application will be described in detail below with reference to the accompanying drawings.

[0032] First embodiment:

[0033] Figure 1 As shown, an energy-saving interwall heat exchange device for a laser includes a front side plate 11, a rear side plate 12, two I-beams 13 located between and in contact with the two plates, and a plurality of heat exchange plates 2 located between the two I-beams 13. The plurality of heat exchange plates 2 are in contact with each other in sequence, and the two heat exchange plates 2 at the edges are in contact with the front side plate 11 and the rear side plate 12, respectively. The front side plate 11 and the rear side plate 12 are fastened by a plurality of fastening screws 3, and the two fastening screws 3 in the middle are movably penetrated through the two I-beams 13. The plurality of I-beams 13 achieve positioning and fastening of the plurality of heat exchange plates 2, so that two stable and mutually isolated heat exchange flow channels are formed inside. The lower end of the upper I-beam 13 is fixedly connected with a clamping strip 14, and the upper end of the lower I-beam 13 is provided with a limit slot 1301. The middle part of the upper end of the heat exchange plate 2 is provided with a clamping groove 1401, and the clamping strip 14 and the clamping groove 1401 are matched with each other.

[0034] As Figure 2 , the outer end of the four corners of the front side plate 11 is fixedly connected with a left inlet 101, a left outlet 102, a right outlet 103, and a right inlet 104, respectively. The heat exchange plate 2 is provided with water passing holes at the four corners, and the heat exchange plate 2 is further provided with heat exchange cavities 201 at the left and right end faces. The outer edges of the heat exchange cavities 201 and the outer edges of the water passing holes are both clamped with sealing strips 202. The two heat exchange cavities 201 on the end face of the heat exchange plate 2 are completely identical in shape and are centrally symmetrically distributed, so that the two heat exchange cavities 201 on the two sides of the heat exchange plate 2 can be mutually isolated, facilitating heat exchange. When the plurality of heat exchange plates 2 are in contact, the plurality of water passing holes correspond to the left inlet 101, the left outlet 102, the right outlet 103, and the right inlet 104 to form hot flow inlet channels, cold flow outlet channels, hot flow outlet channels, and cold flow inlet channels, respectively. Figure 3Wherein, the liquid absorbing the heat inside the laser enters into the hot flow inlet channel through the left inlet 101, and then flows into the heat exchange cavity 201 on one side of the plurality of heat exchange plates 2, exchanges heat with the cooling medium for cooling, and then flows into the lower flow collection cold channel and is discharged and reenters into the cooling channel of the laser to cool the laser. The cooling medium for heat exchange enters into the cold flow inlet channel through the lower right inlet 104, and then flows into the heat exchange cavity 201 on the other side of the plurality of heat exchange plates 2 in turn, and moves upward to the flow collection hot channel to flow and discharge. The cooling medium and the liquid in the laser meet across the heat exchange plates 2 in the two heat exchange cavities 201 at both ends of the heat exchange plates 2 to achieve sufficient heat exchange, so that the heat generated by the laser during use can be quickly taken away and discharged to ensure stable operation of the laser.

[0035] As Figure 4 and Figure 6 The lower end of the heat exchange plate 2 is fixedly connected with the limiting block 5, the limiting block 5 and the limiting groove 1301 are matched with each other, the heat exchange plate 2 and the I-shaped cross beam 13 are jointly provided with an external leakage monitoring unit, the external leakage monitoring unit includes a visual recognition unit installed on the outer end of the middle part of the I-shaped cross beam 13 through an electric sliding rail, a plurality of pairs of flow collection channels respectively excavated on the left and right end faces of the plurality of heat exchange plates 2, a plurality of pairs of flow collection cavities respectively located in the plurality of limiting blocks 5, a sensing assembly slidingly sleeved outside the limiting block 5, and an alarm 1302 fixedly installed on the outer end of the I-shaped cross beam 13. In use, the visual recognition unit is controlled to reciprocate along the electric sliding rail all the time, so as to monitor whether leakage occurs between the plurality of heat exchange plates 2. When leakage occurs, the liquid of the micro-leakage at the leakage point diffuses in a roughly downward disordered state between the two heat exchange plates 2. In the process, it always passes through the flow collection channel located outside the heat exchange cavity 201 and the water passing hole, so that the diffusion is interrupted and collected in the flow collection channel, and then flows downward to the limiting block 5, so that the surface of the limiting block 5 changes in color obviously. At this time, the visual recognition unit reciprocating along the I-shaped cross beam 13 all the time can obtain the image of the change, and then the alarm 1302 can be triggered to alarm, so that the worker can obtain the abnormality when micro-leakage occurs, and can relatively accurately locate the leakage point to a certain heat exchange plate 2, so that the worker does not need to determine the leakage point through complicated disassembly, pressure test and other operations. Compared with the prior art, the leakage point checking time is greatly reduced, and the timeliness of the worker's maintenance is improved.

[0036] As Figure 5The collecting channel comprises a liquid collecting groove 401 formed in the end face of the heat exchange sheet 2, a semicircular groove 402 formed in the middle of the bottom wall of the liquid collecting groove 401, and a plurality of flow guide holes 403 formed in the lower end of the heat exchange sheet 2 and the limiting block 5. Each pair of the collecting cavities is located below a pair of the collecting channels. Since the liquid collecting groove 401 is U-shaped and the top of the two arms of the liquid collecting groove 401 is not lower than the center point of the two upper water holes, when the leaked water spreads in disorder in the overall downward direction, the leaked water will always pass through the liquid collecting groove 401, so that the disorderly spread of the leaked water is interrupted, and then the leaked water enters the liquid collecting groove 401 and flows to the bottom and then enters the limiting block 5 through the semicircular groove 402 and the flow guide holes 403.

[0037] As Figure 6 and Figure 7 The visual recognition unit comprises two electric push rods 601 distributed longitudinally and transversely, a micro camera 6 mounted on the top of the longitudinal electric push rod 601, and a micro controller mounted on the I-shaped beam 13. The micro camera 6 and the alarm 1302 are both in signal connection with the micro controller, and the lower end of the longitudinal electric push rod 601 is fixedly connected with the elongated end of the transverse electric push rod 601. The micro camera 6 is located between the heat exchange sheet 2 and the lower I-shaped beam 13, and the shooting end of the micro camera 6 is perpendicular to the limiting block 5. When the heat exchange device is working, the micro camera 6 and the alarm 1302 are not on the same side. During the disassembly and assembly of the heat exchange device, the two electric push rods 601 can be used to control the movement of the micro camera 6 to the inner side of the two ends of the I-shaped beam 13, so that the micro camera 6 is not easily damaged by accidental knocking.

[0038] As Figure 8 The collecting cavity comprises a cavity 501 in communication with the plurality of flow guide holes 403 and an inclined hole 502 in communication with the cavity 501 and the outer wall of the limiting block 5. The inclined hole is inclined downward along the direction close to the outside, so that the leaked liquid entering the cavity 501 can continue to exude naturally along the inclined hole 502 and enter the water-absorbing patch 52, so that the color change is obvious, and the effect of discovering the leakage at the early stage is achieved.

[0039] As Figures 9-10, the perception assembly includes a transparent isolation ring 51 sliding on the outer end of the limiting block 5, a water absorption patch 52 attached to the outer wall of the limiting block 5, and an outer convex sealing ring 503 embedded in the outer end of the limiting block 5. When the lower end of the transparent isolation ring 51 contacts the I-shaped cross beam 13, the upper end of the transparent isolation ring 51 just abuts against the outer convex sealing ring 503, making it difficult for water dripping from top to bottom to seep into the inside of the transparent isolation ring 51, effectively ensuring the accuracy of the abnormal indication of the discoloration of the water absorption patch 52 on the heat exchange plate 2. The water absorption patch 52 covers the mouth of the two inclined holes 502 at the same time, and the outer surface of the water absorption patch 52 is coated with a water-sensitive indicator. When it comes into contact with water, it will change color obviously, thereby making the image information obtained by the miniature camera 6 have obvious differences, so that the micro-leakage can be detected, and the staff can carry out targeted treatment in the early stage, effectively avoiding the expansion of the external leakage range.

[0040] In addition, after detecting the abnormality, the staff disassembles the machine for targeted maintenance, and before reassembling, the transparent isolation ring 51 can slide out of the limiting block 5 without the restriction of the I-shaped cross beam 13, like Figure 11 , the transparent isolation ring 51 can be slid down to expose the water absorption patch 52 completely, and then the water absorption patch 52 can be torn off and replaced with a new one.

[0041] In summary, through the U-shaped current collection channel located outside the heat exchange cavity and the setting of the current collection cavity at the bottom of the heat exchange plate 2, when the heat exchange device leaks, the water at the leakage point will spread disorderly between the two heat exchange plates 2. This diffusion will be interrupted when it reaches the current collection channel, causing the leaked liquid to eventually collect in the current collection channel and flow into the current collection cavity, causing the water absorption patch 52 to discolor, allowing the miniature camera to identify the leakage point in the early stage of micro-leakage before it develops into external dripping. Compared with the existing technology, which only detects when there is obvious external leakage, on the one hand, the leakage point can be located to a specific heat exchange plate 2, greatly reducing the complexity and difficulty of troubleshooting the leakage point, and on the other hand, the leakage can be detected when the amount of leaked liquid is relatively small, allowing the staff to maintain before the fault expands, reducing losses.

[0042] Second embodiment:

[0043] This embodiment adds a self-sealing unit 53 and related structures based on the first embodiment, and the rest remains the same as the first embodiment.

[0044] As Figure 12, the lower end of the transparent isolation ring 51 is also excavated with an annular cavity and a plurality of long holes communicated with the annular cavity, and the annular cavity and the long holes are jointly provided with a self-sealing unit 53, the self-sealing unit 53 includes a touch rod 531 penetrating the long hole, a piston ring 533 in interference fit with the annular cavity, and a convex hollow rubber ring 532 placed inside the annular cavity, the convex hollow rubber ring is saturated filled with air, the lower end of the touch rod 531 extends below the transparent isolation ring 51, the length of the touch rod 531 below the limiting block 5 is not greater than the distance between the convex hollow rubber ring 532 and the piston ring 533, such as Figure 13 When installing the heat exchange plate 2, the bottom of the transparent isolation ring 51 will be in contact with the I-beam 13, so that the self-sealing unit 53 extends into the annular cavity under the action of the I-beam 13, thereby pushing the piston ring 533 to move upwards, so that the air in the piston ring 533 is compressed, thereby pushing the convex hollow rubber ring 532 to move towards the surface of the limiting block 5, thereby being in contact with the surface of the limiting block 5, thereby forming a sealing layer between the bottom of the limiting block 5 and the transparent isolation ring 51, and the upper part of the transparent isolation ring 51 is also sealed by the outer convex sealing ring 503, so that the water absorption patch 52 is located between the two sealing layers, if the micro-leakage is not treated in time, the water dropped to the outside is difficult to contact with the water absorption patch 52, thereby the water absorption patch 52 corresponding to the normal heat exchange plate 2 is not easy to change color due to external water stains in the later period, thereby effectively avoiding the mis-detection, and the external leakage detection of the plurality of water absorption patches 52 corresponding to the heat exchange plate 2 is continuous, and the change presented is relatively accurate for indicating the condition of the heat exchange plate 2.

[0045] Compared with the first embodiment, the sealing treatment of the water absorption patch 52 is added in the embodiment, so that it is only caused to change color by the liquid from the heat exchange plate 2, and is not easy to be affected by the water leaked from the heat exchange plate 2.

[0046] In combination with the current actual demand, the above-mentioned embodiments adopted by the present application do not limit the protection scope, various changes made within the knowledge range of those skilled in the art without departing from the concept of the present application still fall within the protection scope of the present application.

Claims

1. An energy-saving indirect heat exchange device for a laser, comprising a front side plate (11), a rear side plate (12), two I-beams (13) located between and in contact with the two, and a plurality of heat exchange plates (2) located between the two I-beams (13), wherein the plurality of heat exchange plates (2) are in sequential contact, and the two outermost heat exchange plates (2) respectively abut against the front side plate (11) and the rear side plate (12), wherein the front side plate (11) and the rear side plate (12) are fastened together by a plurality of fastening screws (3), and the two fastening screws (3) in the middle are movably inserted through the two I-beams (13), characterized in that: The upper H-shaped crossbeam (13) is fixedly connected with a clamping strip (14) at the lower end, and the lower H-shaped crossbeam (13) is provided with a limiting groove (1301) at the upper end. The outer end of the front side plate (11) is fixedly connected with a left inlet (101), a left outlet (102), a right outlet (103) and a right inlet (104) at the four corners, respectively, and the upper four corners of the heat exchange plate (2) are provided with water passing holes, respectively, and the left and right end faces of the heat exchange plate (2) are provided with heat exchange cavities (201), respectively, and the outer edges of the heat exchange cavities (201) and the outer edges of the water passing holes are clamped with sealing strips (202), respectively, and the heat exchange plate (2) and the H-shaped crossbeam (13) are provided with an external leakage monitoring unit, which comprises a visual identification unit installed at the outer end of the middle part of the H-shaped crossbeam (13) through an electric sliding rail, a plurality of pairs of current collecting channels formed in the left and right end faces of a plurality of heat exchange plates (2), a plurality of pairs of current collecting cavities located in a plurality of limiting blocks (5), respectively, a sensing assembly slidingly sleeved outside the limiting block (5), and an alarm (1302) fixedly installed at the outer end of the H-shaped crossbeam (13), the current collecting channel comprises a liquid collecting groove (401) formed in the end face of the heat exchange plate (2), a semicircular groove (402) formed in the middle part of the bottom wall of the liquid collecting groove (401), and a plurality of flow guide holes (403) formed in the lower end of the heat exchange plate (2) and the limiting block (5), each pair of current collecting cavities is located below a pair of current collecting channels, the liquid collecting groove (401) is U-shaped, and the top of the two arms of the liquid collecting groove (401) is not lower than the center point of the two water passing holes above.

2. The energy-saving partitioned heat exchange device for laser according to claim 1, characterized in that: The two heat exchange cavities (201) on the end face of the heat exchange plate (2) are completely identical in shape and are centrally symmetrically distributed.

3. The energy saving type of wall type heat exchanger for laser according to claim 1, characterized in that: The visual identification unit comprises two electric push rods (601) distributed longitudinally and transversely, a micro camera (6) installed at the top of the longitudinal electric push rod (601), and a micro controller installed on the H-shaped crossbeam (13), the micro camera (6) and the alarm (1302) are signal connected with the micro controller, the lower end of the longitudinal electric push rod (601) is fixedly connected with the elongated end of the transverse electric push rod (601), the micro camera (6) is located between the heat exchange plate (2) and the lower H-shaped crossbeam (13), the shooting end of the micro camera (6) is perpendicular to the limiting block (5), and the micro camera (6) and the alarm (1302) are not on the same side.

4. The energy-saving partitioned heat exchange device for laser according to claim 1, characterized in that: The current collecting cavity comprises a cavity (501) in communication with a plurality of flow guide holes (403) and an inclined hole (502) in communication with the cavity (501) and the outer wall of the limiting block (5), and the inclined hole (502) is inclined downward along the direction close to the outside.

5. The energy saving type of wall type heat exchanger for laser according to claim 4, characterized in that: The perception assembly comprises a transparent isolation ring (51) sliding on the outer end of the limiting block (5), a water absorption patch (52) attached to the outer wall of the limiting block (5), and an outer convex sealing ring (503) inlaid on the outer end of the limiting block (5), when the lower end of the transparent isolation ring (51) is in contact with the I-shaped cross beam (13), the upper end of the transparent isolation ring (51) just abuts against the outer convex sealing ring (503).

6. The energy-saving partitioned heat exchange device for laser according to claim 5, characterized in that: The water absorption patch (52) covers the mouth of the two inclined holes (502) at the same time, and the outer surface of the water absorption patch (52) is coated with a water-sensitive indicator.

7. The energy-saving partitioned heat exchange device for laser according to claim 6, characterized in that: The lower end of the transparent isolation ring (51) is further provided with an annular cavity and a plurality of long holes communicating with the annular cavity, and a self-sealing unit (53) is arranged in the annular cavity and the long holes, the self-sealing unit (53) comprises a touch rod (531) movably penetrating the long hole, a piston ring (533) in interference fit with the annular cavity, and a convex hollow rubber ring (532) placed in the annular cavity, the lower end of the touch rod (531) extends below the transparent isolation ring (51).

8. The energy-saving partitioned heat exchange device for laser according to claim 7, characterized in that: The convex hollow rubber ring (532) is saturatedly filled with air, and the length of the touch rod (531) below the limiting block (5) is not greater than the distance between the convex hollow rubber ring (532) and the piston ring (533).

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