CN212006912U - Heat exchanger cleaning device, outdoor unit and air conditioner - Google Patents

Abstract

The utility model provides a heat exchanger belt cleaning device, off-premises station, air conditioner. The heat exchanger cleaning device comprises a cleaning pipe, wherein a plurality of jet ports are formed in the circumferential side wall of the cleaning pipe and are arranged at intervals along the axial direction of the cleaning pipe, and the heat exchanger cleaning device further comprises a motion driving mechanism, the motion driving mechanism can drive the cleaning pipe to generate translation, and the translation is located in a plane parallel to the air outlet surface of the heat exchanger. According to the utility model discloses a heat exchanger belt cleaning device, off-premises station, air conditioner, scavenge pipe can produce the translation for the heat exchanger to effectively improve the cleaning range to the heat exchanger, the heat exchanger cleaning performance is better.

Description

Heat exchanger cleaning device, outdoor unit and air conditioner

Technical Field

The utility model belongs to the technical field of air conditioning, concretely relates to heat exchanger belt cleaning device, off-premises station, air conditioner.

Background

With the improvement of living standard of people, the use of the air conditioner is widely popularized. The outdoor unit of the air conditioner is outdoor, the working environment is various and severe, and after the outdoor unit is used for a long time, the outdoor unit inevitably has a serious pollution problem, so that the heat exchange effect of the outdoor unit heat exchanger is seriously influenced, the heat exchange efficiency of the whole air conditioner is reduced, and the refrigerating and heating performance of the whole air conditioner is directly influenced. At present, outdoor units sold in the market are basically cleaned manually, after a user finds that the air conditioner performance is seriously reduced after using the outdoor units for several years, the outdoor units can seek after-sales maintenance, and a plurality of after-sales feedback solutions are to clean the heat exchanger of the outdoor unit to solve the problem; in order to improve the automation degree of cleaning of the heat exchanger of the outdoor unit of the air conditioner, two representative cleaning devices are available in the prior art, one is a water cleaning device using liquid (water or cleaning solution) as a cleaning means, and the other is a gas cleaning device using gas as a cleaning means, and the positions of the cleaning devices relative to the heat exchanger are relatively fixed, and the relative fixation of the positions is not beneficial to the overall cleaning of the heat exchanger, therefore, in order to clean the heat exchanger as comprehensively as possible, the prior art intends to overcome the problem by arranging a plurality of groups of spraying pipes or spraying heads near the heat exchanger, but the manner of increasing the number of the spraying pipes or spraying heads to increase the cleaning range will undoubtedly increase the production and manufacturing cost of the air conditioner, and at the same time, may form obstacles to the heat exchange airflow of the heat exchanger, based on this kind not enough, provide the utility model discloses.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model is to provide a heat exchanger belt cleaning device, off-premises station, air conditioner, the scavenge pipe can produce the translation for the heat exchanger to effectively improve the cleaning range to the heat exchanger, the heat exchanger cleaning performance is better.

In order to solve the problem, the utility model provides a heat exchanger belt cleaning device, including the scavenge pipe, be equipped with a plurality of efflux mouths, it is a plurality of on the circumference lateral wall of scavenge pipe the efflux mouth is followed the axial interval of scavenge pipe sets up, still includes motion actuating mechanism, motion actuating mechanism can drive the scavenge pipe produces the translation, the translation is in the plane parallel with the heat exchanger air-out face.

Preferably, the motion driving mechanism comprises a first slide rail and a fluid pumping component, the first slide rail is provided with a driving hole cavity which penetrates along the length direction of the first slide rail, a piston is arranged in the driving hole cavity, the piston divides the driving hole cavity into a first cavity and a second cavity, a high-pressure fluid outlet of the fluid pumping component is communicated with one of the first cavity and the second cavity to drive the piston to reciprocate along the length direction of the first slide rail, and the piston can drive the cleaning pipe to move along the length direction of the first slide rail in a translation mode.

Preferably, the cleaning pipe is connected to a moving frame, the moving frame is sleeved on the outer peripheral side of the first slide rail, and attraction force is formed between the moving frame and the piston.

Preferably, a first sleeving hole is formed in the moving frame, the moving frame is sleeved with the first sliding rail through the first sleeving hole, a first magnetic part is coaxially arranged in the first sleeving hole, a second magnetic part is arranged on the piston, and the magnetism of the first magnetic part is opposite to that of the second magnetic part.

Preferably, the translation driving structure further comprises a reversing valve, the reversing valve is provided with a flow inlet, a first flow outlet and a second flow outlet, the flow inlet is communicated with a high-pressure fluid outlet of the fluid pumping component, the first flow outlet is communicated with the first cavity, and the second flow outlet is communicated with the second cavity.

Preferably, the translational driving structure further comprises a second slide rail, the second slide rail is provided with a communicating hole cavity which is communicated along the length direction of the second slide rail, one end of the communicating hole cavity is communicated with the first cavity, the other end of the communicating hole cavity is communicated with the second cavity, and the moving frame is further sleeved on the second slide rail.

Preferably, the translation driving structure further includes a first flow conversion box, the first flow conversion box has a first flow passing cavity and a second flow passing cavity, the first flow outlet is communicated with the first cavity through the first flow passing cavity, and the second flow outlet is communicated with the communicating hole cavity through the second flow passing cavity.

Preferably, the first converter box is located at the end of the first slide rail corresponding to the first cavity.

Preferably, the translation driving structure further includes a second converter box, the communicating hole cavity is communicated with the second cavity through a third overflowing cavity of the second converter box, and the second converter box is located at an end of the first slide rail corresponding to the second cavity.

Preferably, the fluid pumping means is an air compression pump.

Preferably, the motion driving mechanism comprises a fluid distribution valve for delivering the high-pressure fluid generated by the fluid pumping component to the cleaning tube and the first cavity or the second cavity of the first slide rail respectively.

Preferably, a pulse valve is arranged between the fluid distribution valve and the cleaning pipe.

Preferably, the cleaning pipe comprises a first cleaning pipe, the first cleaning pipe is provided with a plurality of jet ports which are divided into a first axial jet row and a second axial jet row, and the first axial jet row and the second axial jet row are arranged at intervals along the circumferential direction of the first cleaning pipe.

Preferably, the jet ports in the first axial jet row and the jet ports in the second axial jet row are alternately arranged in the axial direction of the first cleaning pipe.

Preferably, a first included angle α is formed between a projection of a fluid injection direction of any jet orifice in the first axial jet flow row and a projection of a fluid injection direction of any jet orifice in the second axial jet flow row on any plane perpendicular to the axial direction of the first cleaning pipe, and an included angle between a pipe center connecting line of an inner row of heat exchange pipes and an outer row of heat exchange pipes of the heat exchanger and a horizontal plane is θ, where θ is α/2.

Preferably, the scavenge pipe still includes the second scavenge pipe, the second scavenge pipe with first scavenge pipe parallels, the second scavenge pipe has a plurality of the efflux mouth divide into third axial efflux row, fourth axial efflux row, third axial efflux row with fourth axial efflux row is followed the circumference interval of second scavenge pipe sets up, just the fluid jet direction of arbitrary efflux mouth in the third axial efflux row with the fluid jet direction of arbitrary efflux mouth in the fourth axial efflux row is at arbitrary perpendicular to form second contained angle beta between the projection on the axial plane of second scavenge pipe, just the angular bisector of second contained angle beta with the angular bisector of first contained angle alpha is parallel, beta ≠ alpha.

The utility model also provides an outdoor machine, including foretell heat exchanger belt cleaning device.

The utility model also provides an air conditioner, including foretell off-premises station.

The utility model provides a pair of heat exchanger belt cleaning device, off-premises station, air conditioner, the position of a plurality of efflux mouths on the scavenge pipe will have countless efflux position in a cleaning process, and these efflux positions are owing to being driven to change, consequently, it can just can guarantee the efflux cleaning coverage of efflux mouth on it through few scavenge pipe, also promptly the movable design of scavenge pipe has improved belt cleaning device is right the cleaning zone of heat exchanger, the cleaning performance is better, and furtherly, can adopt less scavenge pipe, injection apparatus can realize higher cleaning performance to the manufacturing cost of air conditioner has been reduced.

Drawings

Fig. 1 is a schematic perspective view of a heat exchanger cleaning device according to an embodiment of the present invention;

FIG. 2 is a front view (opposite side to the heat exchanger) of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic perspective view of the heat exchanger cleaning apparatus shown in FIG. 1 after being assembled with a heat exchanger;

FIG. 5 is a schematic representation of the jet cleaning ranges (at the top stop position) of the first and second axial jet rows of the first cleaning tube of FIG. 1;

FIG. 6 is a schematic representation of the jet cleaning ranges (at the lower stop position) for the third and fourth axial jet rows of the second cleaning tube of FIG. 1;

fig. 7 is a schematic perspective view of an outdoor unit according to an embodiment of the present invention (omitting an air outlet panel).

The reference numerals are represented as:

1. cleaning the tube; 11. a jet orifice; 12. a first cleaning pipe; 121. a first axial jet bank; 122. a second axial jet stream row; 13. a second cleaning pipe; 131. a third axial jet row; 132. a fourth axial jet row; 21. a first slide rail; 22. a fluid pumping member; 23. a diverter valve; 24. a second slide rail; 25. a first converter box; 26. a second converter box; 27. a dispensing valve; 28. a pulse valve; 4. a motion frame; 42. a first magnetic member; 100. a heat exchanger; 101. an inner row of heat exchange tubes; 102. an outer row of heat exchange tubes; 200. an outdoor unit fan; 300. a chassis.

Detailed Description

Referring to fig. 1 to 7 in combination, according to an embodiment of the present invention, there is provided a heat exchanger cleaning apparatus, including a cleaning pipe 1, a plurality of jet ports 11 are provided on a circumferential side wall of the cleaning pipe 1, the plurality of jet ports 11 are arranged along an axial direction of the cleaning pipe 1 at intervals, and further including a motion driving mechanism, the motion driving mechanism can drive the cleaning pipe 1 to generate a translation motion, the translation motion is in a plane parallel to an air outlet surface of the heat exchanger 100, that is, the cleaning pipe 1 can move on one side of the heat exchanger 100, specifically, when the air outlet surface (or the air inlet surface) of the heat exchanger 100 is a vertical surface, the cleaning pipe 1 moves up and down or moves left and right in the vertical surface, and thus, there will be a plurality of jet positions at the positions of the plurality of jet ports 11 on the cleaning pipe 1 in a cleaning process, and these jet positions are driven to change, therefore, the jet flow cleaning coverage of the upper jet orifice 11 can be ensured by using few cleaning pipes 1 (for example, 2 or even 1 cleaning pipe), that is, the movable design of the cleaning pipe 1 improves the cleaning range of the cleaning device for the heat exchanger 100, the cleaning effect is better, and further, a higher cleaning effect can be realized by using fewer cleaning pipes and jetting devices, thereby reducing the production and manufacturing cost of the air conditioner.

The motion driving mechanism may take various forms in structure, such as a conventional cylinder driving manner, a motor-driven screw transmission pair, a gear transmission manner with a more complex structure, and the like, which can achieve a driving effect of translational motion, but is relatively not compact in structure, and as a more preferred embodiment, the motion driving mechanism includes a first slide rail 21, a fluid pumping member 22, the first slide rail 21 has a driving bore (not shown) penetrating along a length direction thereof, a piston (not shown) is disposed in the driving bore, the piston divides the driving bore into a first cavity (not shown) and a second cavity (not shown), a high-pressure fluid outlet of the fluid pumping member 22 is communicated with one of the first cavity and the second cavity to drive the piston to reciprocate along the length direction of the first slide rail 21, the piston can drive the cleaning pipe 1 to move horizontally along with the cleaning pipe 1, and the first slide rail 21 in the technical scheme is used as a movement guide component of the cleaning pipe 1 on one hand and as a movement driving execution component of the cleaning pipe 1 on the other hand, so that the structures of the cleaning pipe 1 and the cleaning pipe are organically integrated into a whole, the structure is more compact, the space in an outdoor unit is favorably optimized, and the cleaning device can be improved on the basis of the conventional outdoor unit due to the more compact structure, and the improvement cost of an air conditioner is reduced.

Further, the cleaning tube 1 is connected to a moving frame 4, the moving frame 4 is sleeved on the outer peripheral side of the first slide rail 21, attraction force is provided between the moving frame 4 and the piston, specifically, a first sleeving hole is provided on the moving frame 4, the moving frame 4 is sleeved with the first slide rail 21 through the first sleeving hole, a first magnetic member 42 is coaxially provided in the first sleeving hole, a second magnetic member is provided on the piston, and the first magnetic member 42 is opposite to the second magnetic member (not shown in the figure). That is, the piston and the movable frame 4 are connected in a non-contact manner by means of magnetic attraction, which ensures the structural integrity of the first slide rail 21 as a fluid storage chamber (e.g., the aforementioned first chamber and second chamber), and effectively overcomes the defect that other connection methods need to destroy the structure of the first slide rail 21 and perform necessary fluid sealing treatment. At this time, it can be understood that the first slide rail 21 may be a circular tube, and certainly, since the moving frame 4 and the piston both move relative to the first slide rail 21, it should be ensured that the roughness of the outer tube wall and the inner hole wall of the circular tube reaches the design requirement.

Preferably, the translation driving structure further includes a reversing valve 23, the reversing valve 23 has an inlet (not shown in the figure), a first outlet (not shown in the figure), and a second outlet (not shown in the figure), the inlet is communicated with a high-pressure fluid outlet of the fluid pumping component 22, the first outlet is communicated with the first cavity, the second outlet is communicated with the second cavity, the reversing valve 23 is configured to communicate the high-pressure fluid output by the fluid pumping component 22 with the first cavity or the second cavity of the first slide rail 21, so as to force the piston to reciprocate along the length direction of the first slide rail 21 by a fluid pressure difference between the first cavity and the second cavity, preferably, the reversing valve 23 is an electromagnetic reversing valve, switching of a reversing signal of the electromagnetic reversing valve is limited by stroke end signals at two ends of the first slide rail 21, specifically, for example, corresponding travel switches should be respectively disposed at two ends of the length of the first slide rail 21, so as to detect whether the moving frame 4 (corresponding to the position of the cleaning tube 1) reaches two ends of the length of the first slide rail 21, and when the moving frame reaches an end, the electromagnetic directional valve is triggered to change direction, and the cleaning tube 1 runs in a reverse direction.

Further, the translational driving structure further comprises a second slide rail 24, the second slide rail 24 is provided with a communicating hole cavity which is communicated along the length direction of the second slide rail 24, one end of the communicating hole cavity is communicated with the first cavity, the other end of the communicating hole cavity is communicated with the second cavity, the moving frame 4 is further sleeved on the second slide rail 24, at the moment, the second slide rail 24 is designed to improve the stability of the moving direction of the moving frame 4 on one hand, further ensure the uniformity of the distance between the cleaning pipe 1 and the heat exchanger 100 and the consistency of the cleaning effect, on the other hand, the second slide rail serves as a connecting pipeline of the first cavity and the second cavity, the structure of the cleaning device is further simplified, and the structure of the cleaning device is more compact.

Furthermore, the translational driving structure further includes a first converter box 25, the first converter box 25 has a first overflowing cavity and a second overflowing cavity, the first outflow port is communicated with the first cavity through the first overflowing cavity, the second outflow port is communicated with the communicating hole cavity through the second overflowing cavity, the first overflowing cavity and the second overflowing cavity in the first converter box 25 can equalize air pressure of the fluid in the first cavity or the second cavity, that is, when the high-pressure fluid is communicated with the first cavity through the first overflowing cavity, the piston moves towards the second cavity, and if the fluid in the second cavity is directly discharged, the high-pressure fluid in the first cavity forces the piston to move towards the second cavity at a high speed, so that on the one hand, the contact cleaning time of the jet fluid in the cleaning pipe 1 and the heat exchanger 100 is reduced, and the cleaning effect is reduced, on the other hand, the piston running at high speed is extremely easy to be damaged or parts matched with the piston are damaged, the second overflowing cavity stores low-pressure fluid, the pressure of the low-pressure fluid is gradually increased along with the movement of the piston, the high-speed movement of the piston is further prevented from being balanced, the translational speed of the cleaning pipe 1 is enabled to be more controllable, furthermore, corresponding overflow valves can be respectively arranged in the first overflowing cavity and the second overflowing cavity, and the pressure of the fluid is relieved when the pressure exceeds the limiting pressure, so that the pressure of the whole fluid system is prevented from being overhigh. Further, the first converter box 25 is located at the end of the first slide rail 21 corresponding to the first cavity, and at this time, the first converter box 25 also serves as a displacement stroke limiting structure for the moving frame 4, and for the same reason, a second converter box 26 is also arranged at the end of the first slide rail 21 corresponding to the second chamber, the communicating hole cavity is communicated with the second cavity through a third overflowing cavity of the second converter box 26, at the moment, the second converter box 26 has double functions of overflowing and end limiting, meanwhile, the first commutation box 25 and the second commutation box 26 can also be used as a component for connecting the cleaning device with the shell of the outdoor unit, specifically, for example, the second commutation box 26 is fixedly connected to the bottom chassis 300 of the outdoor unit, and the first commutation box 25 is fixedly connected to the top casing (not shown) of the outdoor unit.

Preferably, the fluid pumping member 22 is an air compression pump, and the motion driving mechanism includes a fluid distribution valve 27, and the fluid distribution valve 27 is configured to deliver the high-pressure fluid generated by the fluid pumping member 22 to the first cavity or the second cavity of the cleaning tube 1 and the first slide rail 21, respectively. At this time, the cleaning device adopts high-pressure gas as cleaning fluid and also as driving fluid for the translation of the cleaning tube 1. Because the high-pressure gas is adopted to clean the heat exchanger 100, the cleaning of the heat exchanger 100 can not be limited by the ambient temperature and the operation mode of the air conditioner, for example, in winter, because the outdoor environment is low, the conventional cleaning device using liquid as a cleaning medium is not applicable any more, because the icing of the heat exchanger in the cleaning process is easily caused, and simultaneously, in winter, the air conditioner is in the heating mode for a long time, the outdoor heat exchanger frosts, and the conventional mode is to control the refrigeration mode of the air conditioner for a period of time and then to defrost, and the cleaning device can remove the frost layer attached to the heat exchanger 100 by spraying the high-pressure gas without switching the operation mode of the air conditioner, and the adverse consequence of icing can not be brought by influencing the indoor temperature.

A pulse valve 28 is arranged between the fluid distribution valve 27 and the cleaning pipe 1, and the pulse valve 28 is used for controlling the output of high-pressure fluid in the distribution valve 27.

The cleaning tube 1 comprises a first cleaning tube 12, the plurality of jet ports 11 of the first cleaning tube 12 are divided into a first axial jet flow row 121 (i.e. a plurality of jet ports arranged in a row at intervals in the axial direction of the first cleaning tube 12), a second axial jet flow row 122 (i.e. a plurality of jet ports arranged in a row at intervals in the axial direction of the first cleaning tube 12), the first axial jet flow row 121 and the second axial jet flow row 122 are arranged at intervals in the circumferential direction of the first cleaning tube 12, so that a first included angle α is formed between the projection of the fluid injection direction of any jet port 11 in the first axial jet flow row 121 and the projection of the fluid injection direction of any jet port 11 in the second axial jet flow row 122 on any plane perpendicular to the axial direction of the first cleaning tube 12, and the first included angle α can be matched with a heat dissipation flow channel on the heat exchanger 100, preferably, for example, an included angle between a connection line of tube centers of the inner row of heat exchange tubes 101 and the outer row of heat exchange tubes 102 of the heat exchanger 100 and a horizontal plane is θ (as shown in fig. 5), and θ is α/2, that is, a jet direction of each jet port 11 in the first axial jet row 121 is parallel to a heat dissipation flow channel on the heat exchanger 100, so as to adapt to a phenomenon that a back area of the heat exchange tube cannot be effectively cleaned when an jet fluid of the jet port 11 is perpendicular to an air inlet surface or an air outlet surface of the heat exchanger 100 due to an inclination between the inner row of heat exchange tubes 101 and the outer row of heat exchange tubes 102 in the heat exchanger 100 in the prior art, and with the technical solution in the present invention, the angled first axial jet row 121 and the angled second axial jet row 122 can reach a back area of the heat exchange tubes adjacent thereto, thereby ensuring a cleaning effect on the heat exchanger 100, especially when the cleaning pipe 1 can translate relative to the heat exchanger 100, the cleaning effect is improved; in addition, as shown in fig. 5, the first axial jet flow row 121 and the second axial jet flow row 122 with an angle can also effectively enlarge the cleaning range of the cleaning pipe 1 at the end of the first slide rail 21, and for the technical solution of the present invention, the jet fluid of the jet orifice 11 in the first axial jet flow row 121 can enter the area of the heat exchanger 100 covered by the first converter box 25. Similarly, the cleaning pipe 1 further includes a second cleaning pipe 13, the second cleaning pipe 13 is parallel to the first cleaning pipe 12, the plurality of jet ports 11 of the second cleaning pipe 13 are divided into a third axial jet row 131 and a fourth axial jet row 132, the third axial jet row 131 and the fourth axial jet row 132 are arranged at intervals along the circumferential direction of the second cleaning pipe 13, and a second included angle β is formed between the fluid injection direction of any jet port 11 in the third axial jet row 131 and the fluid injection direction of any jet port 11 in the fourth axial jet row 132 on any plane perpendicular to the axial direction of the second cleaning pipe 13, at this time, as shown in fig. 6, the injection fluid of the jet port 11 of the fourth axial jet row 132 of the second cleaning pipe 13 can enter the region of the heat exchanger 100 covered by the second converter box 26, β may be equal to α, and preferably, an angular bisector of the second included angle β is parallel to an angular bisector of the first included angle α, β ≠ α, thereby forming overlapping and crossing of the first cleaning pipe 12 and the second cleaning pipe 13 in the cleaning range, further improving the multi-angle cleaning of the heat exchanger 100, and further improving the cleaning effect.

The jet orifice 11 may be a circular hole structure, or may be a slit structure as shown in fig. 3, the first axial jet rows 121 and the second axial jet rows 122 may be arranged in parallel with each other in the axial direction of the first cleaning pipe 12, and further, each jet orifice 11 in the first axial jet flow row 121 and each jet orifice 11 in the second axial jet flow row 122 are alternately arranged along the axial direction of the first cleaning pipe 12, furthermore, by providing a plurality of cleaning pipes 1, the plurality of jet ports 11 can cover the corresponding width of the heat exchanger 100 in the axial extension direction of the cleaning pipes 1, and then realize the full width cover of heat exchanger while, can also prevent the pressure fluid attenuation too big when the length that the jet orifice 11 runs through corresponding scavenge pipe 1 on every scavenge pipe 1 from causing the problem that the one end pressure of keeping away from fluid inlet department is too low to take place.

According to an embodiment of the present invention, as shown in fig. 7, there is also provided an outdoor unit, including the heat exchanger cleaning apparatus described above, the heat exchanger cleaning device is installed at a position between the heat exchanger 100 and an outdoor unit fan 200 (fan blade), and further, the outdoor unit fan 200 is a suction fan, i.e. after operation, the external heat dissipation air flow is forced to flow out of the outdoor unit through the outlet grill located outside the outdoor unit blower 200 after first passing through the heat exchanger 100, at this time, the injection fluid of the heat exchanger cleaning apparatus is injected from the inside of the outdoor unit toward the outside of the outdoor unit, specifically, from the side of the outdoor unit blower 200 toward the side of the heat exchanger 100, therefore, the dirty objects cleaned by the cleaning device can be ensured to be positioned outside the outdoor unit, and secondary pollution to the inner components of the outdoor unit is prevented.

According to the utility model discloses an embodiment still provides an air conditioner, including foretell off-premises station.

According to the utility model discloses an embodiment still provides a heat exchanger washing control method for control foretell heat exchanger belt cleaning device washs the heat exchanger, including following step:

acquiring a real-time rotating speed of an outdoor unit fan 200 and a real-time air pressure Ps corresponding to the real-time rotating speed;

acquiring a preset air pressure Py corresponding to the real-time rotating speed;

acquiring an absolute value delta Ps of a difference value between Ps and Py | _ Ps-Py |, and a preset wind pressure difference value delta Py;

when delta Ps is larger than delta Py, controlling the cleaning pipe 1 to spray fluid and controlling the motion driving mechanism to drive the cleaning pipe 1 to move horizontally. Specifically, for example, the direction changing valve 23 is controlled to make the first chamber communicate with the high-pressure fluid of the fluid pumping member 22, taking the orientation shown in fig. 7 as an example, at this time, the piston is driven by the high-pressure fluid to move downward, the piston drives the moving frame 4 connected with the magnetic attraction force thereof and the cleaning pipe 1 thereon to move downward, and at the same time, the pulse valve 28 is controlled to make the cleaning pipe 1 conduct the high-pressure fluid, so as to realize the jet cleaning of the high-pressure fluid.

And when the delta Ps is less than or equal to the delta Py, controlling the cleaning pipe 1 to stop jetting the fluid, and controlling the motion driving mechanism to drive the cleaning pipe 1 to stop translating.

Further, when Δ Ps ≦ Δ Py and the motion driving mechanism comprises the first commutation box 25 or the second commutation box 26, the cleaning pipe 1 is controlled to stop adjacent to the first commutation box 25 or the second commutation box 26, so as to prevent the cleaning pipe 1 from stopping in the middle area of the heat exchanger 100, which may have adverse effects on the heat dissipation performance.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (18)

1. The cleaning device for the heat exchanger is characterized by comprising a cleaning pipe (1), wherein a plurality of jet orifices (11) are formed in the circumferential side wall of the cleaning pipe (1), the jet orifices (11) are arranged along the axial direction of the cleaning pipe (1) at intervals, and the cleaning device further comprises a motion driving mechanism, wherein the motion driving mechanism can drive the cleaning pipe (1) to generate translation, and the translation is located in a plane parallel to an air outlet surface of the heat exchanger (100).

2. The cleaning device according to claim 1, wherein the movement driving mechanism comprises a first slide rail (21) and a fluid pumping component (22), the first slide rail (21) is provided with a driving hole cavity penetrating along the length direction of the first slide rail, a piston is arranged in the driving hole cavity, the piston divides the driving hole cavity into a first cavity and a second cavity, a high-pressure fluid outlet of the fluid pumping component (22) is communicated with one of the first cavity and the second cavity to drive the piston to reciprocate along the length direction of the first slide rail (21), and the piston can drive the cleaning tube (1) to follow the translational motion of the cleaning tube.

3. The cleaning device according to claim 2, characterized in that the cleaning tube (1) is connected to a movable frame (4), the movable frame (4) is sleeved on the outer periphery of the first slide rail (21), and a suction force is provided between the movable frame (4) and the piston.

4. The cleaning device according to claim 3, characterized in that the movable frame (4) is provided with a first sleeving hole, the movable frame (4) is sleeved with the first sliding rail (21) through the first sleeving hole, the first sleeving hole is coaxially provided with a first magnetic part (42), the piston is provided with a second magnetic part, and the magnetism of the first magnetic part (42) is opposite to that of the second magnetic part.

5. The cleaning device according to claim 3, wherein the translational drive structure further comprises a directional valve (23), the directional valve (23) having an inlet, a first outlet, and a second outlet, the inlet communicating with the high-pressure fluid outlet of the fluid pumping member (22), the first outlet communicating with the first chamber, and the second outlet communicating with the second chamber.

6. The cleaning device according to claim 5, wherein the translation driving structure further comprises a second slide rail (24), the second slide rail (24) is provided with a communication hole cavity which is communicated along the length direction of the second slide rail, one end of the communication hole cavity is communicated with the first cavity, the other end of the communication hole cavity is communicated with the second cavity, and the moving frame (4) is further sleeved on the second slide rail (24).

7. The cleaning device according to claim 6, wherein the translation driving structure further comprises a first flow conversion box (25), the first flow conversion box (25) is provided with a first flow passing cavity and a second flow passing cavity, the first flow outlet is communicated with the first cavity through the first flow passing cavity, and the second flow outlet is communicated with the communicating hole cavity through the second flow passing cavity.

8. The cleaning apparatus according to claim 7, wherein the first commutation box (25) is at the end of the first slide rail (21) corresponding to the first cavity.

9. The cleaning device according to claim 6, wherein the translational drive structure further comprises a second converter box (26), the communicating hole cavity is communicated with the second cavity through a third overflowing cavity of the second converter box (26), and the second converter box (26) is located at the end of the first slide rail (21) corresponding to the second cavity.

10. A cleaning device according to claim 2, wherein the fluid pumping means (22) is an air compression pump.

11. The washing device according to claim 2, characterized in that the movement driving means comprise a fluid distribution valve (27), the fluid distribution valve (27) being adapted to convey the high-pressure fluid generated by the fluid pumping member (22) to the first or second cavity of the washing pipe (1) and the first slide (21), respectively.

12. A cleaning device according to claim 11, characterized in that a pulse valve (28) is provided between the fluid distribution valve (27) and the cleaning tube (1).

13. The cleaning device according to claim 1, characterized in that the cleaning tube (1) comprises a first cleaning tube (12), the first cleaning tube (12) having a plurality of the jet openings (11) divided into a first axial jet row (121) and a second axial jet row (122), the first axial jet row (121) and the second axial jet row (122) being arranged at intervals along the circumference of the first cleaning tube (12).

14. The washing device according to claim 13, characterized in that the individual jet orifices (11) of the first axial jet row (121) alternate with the individual jet orifices (11) of the second axial jet row (122) in the axial direction of the first washing pipe (12).

15. The cleaning device according to claim 13, wherein a first included angle α is formed between the fluid injection direction of any one of the fluid injection ports (11) in the first axial jet flow row (121) and the fluid injection direction of any one of the fluid injection ports (11) in the second axial jet flow row (122) in any projection on any plane perpendicular to the axial direction of the first cleaning pipe (12), and an included angle θ is formed between a pipe center connecting line of an inner row of heat exchange pipes (101) and an outer row of heat exchange pipes (102) of the heat exchanger (100) and a horizontal plane, and θ is α/2.

16. The cleaning device according to claim 15, characterized in that the cleaning tube (1) further comprises a second cleaning tube (13), the second cleaning tube (13) is parallel to the first cleaning tube (12), the second cleaning tube (13) has a plurality of jet openings (11) divided into a third axial jet row (131) and a fourth axial jet row (132), the third axial jet row (131) and the fourth axial jet row (132) are circumferentially spaced apart along the second cleaning tube (13), and a fluid ejection direction of any jet opening (11) in the third axial jet row (131) and a fluid ejection direction of any jet opening (11) in the fourth axial jet row (132) form a second included angle β between projections of the fluid ejection directions on any plane perpendicular to the axial direction of the second cleaning tube (13), and an angular bisector of the second included angle β is parallel to an angular bisector of the first α, β ≠ α.

17. An outdoor unit comprising a heat exchanger cleaning apparatus, wherein the heat exchanger cleaning apparatus is the heat exchanger cleaning apparatus as recited in any one of claims 1 to 16.

18. An air conditioner comprising an outdoor unit, wherein the outdoor unit is the outdoor unit according to claim 17.

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