Tube box type evaporative cooler

Abstract

The invention belongs to the field of tube box type evaporative cooling devices, and particularly relates to a tube box type evaporative cooler which comprises a shell, a water supply component and a fan component are arranged in the shell, the shell is fixedly connected with two symmetrical supports, a plurality of material tubes are evenly distributed and fixedly connected between the two supports, and the outer side of each material tube is sleeved with a sleeve shell. The upper side and the lower side of each sleeve shell are fixedly connected with a set of symmetrical protruding ridges, and each set of protruding ridges and the outer side of the corresponding sleeve shell are sleeved with an elastic wrapping sleeve. Compared with a traditional water scale removal mode through disassembly, the method for removing the water scale through expansion is more convenient and efficient, the water scale removal effect is more thorough, residues are not prone to being generated, water is directly injected into the wrapping sleeve through the water pump to enable the wrapping sleeve to expand, external driving connection is not needed, and extra energy consumption is not needed. And the complexity of the structure is reduced, so that the fault rate is reduced, and the service life of the descaling structure is long due to no abrasion.

Description

Technical Field

[0001] The present invention belongs to the field of evaporative cooling devices, and specifically relates to a tube box type evaporative cooler. Background Art

[0002] The tube box type evaporative cooler is a common heat exchange device. The working principle of the tube box type evaporative cooler is to utilize the heat absorption of water evaporation to achieve heat exchange. When the high-temperature fluid flows in the heat exchange tubes inside the tube box, the cooling water outside the tubes is sprayed onto the surface of the heat exchange tubes through a spraying device to form a thin water film. At the same time, the fan drives the air to flow inside the evaporative cooler, and the air exchanges heat with the water film on the surface of the heat exchange tubes, causing the water in the water film to evaporate and absorb heat, thereby taking away the heat of the high-temperature fluid inside the heat exchange tubes and realizing the cooling of the high-temperature fluid.

[0003] In actual use, most tube box type evaporative coolers use industrial water, and industrial water contains relatively high levels of calcium, magnesium and other substances. After the water evaporates on the outer side of the heat exchange tubes, calcium, magnesium and other substances in the water precipitate to form scale, reducing the heat transfer efficiency and increasing energy consumption. Although existing solutions can soften the water quality from the source, and carry out certain prevention in terms of the material and process of the evaporative cooling heat exchanger, or use some existing manual-automatic cleaning and descaling tools for cleaning, which can play a certain role in inhibition and slowdown, none of them can achieve real-time online automatic cleaning and descaling of the evaporative cooling heat exchanger. After long-term operation, it will seriously affect the efficiency of the evaporative cooling heat exchanger, increase the operation cost, shorten the equipment life, and each time the scale is cleaned, the cooler needs to be shut down and disassembled, wasting time and affecting the working efficiency of the tube box type cooler.

[0004] Chinese Patent with Publication No. CN106907954B discloses a device and its control method for automatically cleaning an evaporative cooling heat exchanger, including a bracket for placing the evaporative cooling heat exchanger, a water spraying tray arranged on the top of the bracket and used for sprinkling water, and a cleaning tray arranged between the bracket and the water spraying tray and used for cleaning the surface of the heat exchange tubes of the evaporative cooling heat exchanger; columns are arranged at the four corners of the bracket, and the cleaning tray is connected with several motors for driving the cleaning tray to move up and down along the columns. The automatic cleaning device is arranged inside the evaporative cooling heat exchanger and operates automatically, and during the heat exchange process, it synchronously brushes and operates to remove calcium, magnesium and other ion precipitates on the surface of the evaporative cooling heat exchanger, ensuring the long-term stable operation of the evaporative cooling heat exchanger without attenuation of the heat exchange efficiency.

[0005] However, the above patent still has the following disadvantages:

[0006] 1. According to the description of the above patent, if the cleaning device works continuously during the cooling process, the brush and other components described in the above patent are extremely easy to wear, and after long-term use, it is impossible to ensure a good and stable descaling effect.

[0007] 2. The above patent uses a brush to sweep the surface of the heat exchange tubes to achieve the effect of removing scale on the surface. However, the descaling effect is poor. Especially after long-term use, the scale becomes too stubborn to be removed only by brushing, resulting in residual scale that affects the heat conduction efficiency.

[0008] 3. In the above patent, the brush moves between the heat exchange tubes, which affects the passage of air flow and only allows the heat exchange tubes to be arranged in parallel. As a result, the air flow is difficult to fully and evenly contact each heat exchange tube, thus affecting the uniformity and efficiency of cooling. Summary of the Invention

[0009] In order to overcome the deficiencies of the prior art, the technical problem to be solved by the present invention is to optimize the air flow channel through each diamond-shaped heat exchange tube unit arranged in an interleaved and spaced manner, so that the air flow can flow more smoothly around each heat exchange tube unit, ensuring that the air flow fully and evenly passes around each heat exchange tube unit, enabling the materials flowing through each material tube to obtain uniform and sufficient cooling effects. And an expansion method is used to remove scale, solving the problems of low efficiency in the traditional method of disassembling and cleaning scale and difficulty in completely removing scale and easy to produce residues. Moreover, water is directly injected into the covering sleeve through a water pump to make it expand, without the need for external drive access and without additional energy consumption, and reducing the structural complexity, thereby reducing the failure rate. And the function of cleaning scale can be completed without shutting down the machine, saving the time wasted in shutdown processing and improving the working efficiency of the cooler.

[0010] In order to achieve the above object, the present invention provides the following technical solution: A tube box type evaporative cooler, comprising:

[0011] A housing, in which a water supply component is arranged, and a fan component is arranged in the housing;

[0012] A bracket, between which a plurality of material tubes are fixedly connected in a uniform distribution. A sleeve is sleeved outside each material tube. A pair of symmetric ridges are fixedly connected to the upper and lower sides of each sleeve. An elastic covering sleeve is sleeved outside each group of ridges and the corresponding sleeve;

[0013] Among them, the two brackets are fixedly connected to the inside of the housing, and the material tube, the sleeve, the ridge and the covering sleeve form a heat exchange tube unit with an approximately diamond-shaped cross-section.

[0014] Further, the heat exchange tube units are arranged in an evenly interleaved manner, and the gaps between the heat exchange tube units are uniform. The sleeve and the ridge are made of a metal material with good thermal conductivity.

[0015] Further, a plurality of grooves are evenly distributed on the outer surface of each covering sleeve, and each groove is in a wavy shape.

[0016] Further, each of the material pipes passes through between the ends of the two brackets and is connected in series head to tail through a plurality of elbows to form a continuous material conveying path. A material injection pipe head and a material discharge pipe head are fixedly connected to the outer side of the housing at the starting point and the end point of the material conveying path respectively. The material injection pipe head and the material discharge pipe head are fixedly and communicatively connected to the corresponding material pipes respectively.

[0017] Further, the water supply component includes a spray pipe bracket. A plurality of spray pipe brackets are fixedly connected between the two brackets at evenly distributed positions above the material pipes. A spray pipe is fixedly connected to the spray pipe bracket. A spray head is fixedly and communicatively connected to the bottom side of the spray pipe at a position corresponding to each material pipe.

[0018] Further, a water tank is fixedly connected to the bottom of the housing. A water pump communicatively connected to the inside of the water tank is fixedly connected to the outer side of the housing. The output end of the water pump is communicatively connected to a water guide pipe. The water guide pipe is communicatively connected to the spray pipe.

[0019] Further, a hoop sleeving the outer side of the coating sleeve is fixedly connected to the surface of each bracket at a position corresponding to each coating sleeve. Two ridges in each heat exchange tube unit are fixedly connected with a water injection head and a water suction head communicatively connected to the inside of the coating sleeve respectively. One end of each water injection head passing through the bracket is fixedly and communicatively connected to a water injection pipe. One end of each water suction head passing through the bracket is fixedly and communicatively connected to a water suction pipe.

[0020] Further, a sunken water tank is formed on the outer surface of each ridge at a position corresponding to the water injection head and the water suction head. Each water tank is communicatively connected to the water injection head and the water suction head respectively. A second reversing valve is fixedly and communicatively connected between the water pump and the water tank. A first reversing valve is fixedly and communicatively connected between the water pump and the water guide pipe. One end of the first reversing valve is fixedly and communicatively connected to the water injection pipe. One end of the second reversing valve is fixedly and communicatively connected to the water suction pipe.

[0021] Further, a filter screen with evenly fine pores is fixedly connected in the water tank.

[0022] Further, the fan component includes an axial flow fan. A plurality of axial flow fans communicatively connected to the inside of the housing are fixedly connected to the top of the housing. A plurality of air inlet grilles are fixedly connected to the side surface of the bottom of the housing.

[0023] In summary, compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] (1) Through the staggered and spaced heat exchange tube units in the shape of rhombuses, the air flow can flow more smoothly around each heat exchange tube unit, ensuring that the air flow passes evenly and fully around each heat exchange tube unit, so that the materials flowing through each material pipe can obtain a uniform and sufficient cooling effect.

[0025] (2) The method of removing scale by expansion is more convenient and efficient than the traditional method of removing scale by disassembly, and the effect of scale removal is more thorough, and it is not easy to produce residues.

[0026] (3) And directly inject water into the cladding sleeve through the water pump to make it expand, without the need for external drive access, without additional energy consumption, and reduce the structural complexity, thereby reducing the failure rate, and there is no wear, so that the scale removal structure has a long service life.

[0027] (4) The function of removing scale can be completed without shutting down the machine, saving the time wasted by shutdown processing and improving the working efficiency of the cooler. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional schematic diagram of this patent.

[0029] Figure 2 It is a side view of this patent.

[0030] Figure 3 It is Figure 2 The three-dimensional cross-sectional view at A-A in

[0031] Figure 4 It is Figure 3 The partial enlarged view at B in

[0032] Figure 5 It is a schematic diagram of the internal structure of this patent.

[0033] Figure 6 It is Figure 5 The partial enlarged view at C in

[0034] Figure 7 It is a schematic diagram of the structure at the heat exchange tube unit.

[0035] Figure 8 It is a schematic diagram of the heat exchange tube unit when the cladding sleeve shrinks.

[0036] Figure 9 It is a schematic diagram of the heat exchange tube unit when the cladding sleeve expands.

[0037] DESCRIPTION OF THE REFERENCE NUMERALS: housing 10; bracket 11; material pipe 12; sleeve 13; ridge 14; water tank 15; water injection head 16; cladding sleeve 17; groove 18; hoop 19; elbow 20; material injection pipe head 21; discharge pipe head 22; water injection pipe 23; water suction pipe 24; first reversing valve 25; water pump 26; water guide pipe 27; spray pipe 28; spray head 29; spray pipe bracket 30; water tank 31; filter screen 32; axial flow fan 33; air inlet grille 34; second reversing valve 35; water suction head 36. DETAILED DESCRIPTION OF THE INVENTION

[0038] To enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0039] As Figures 1-9 shown, a tube box type evaporative cooler includes a housing 10. Two symmetrically arranged brackets 11 are fixedly connected inside the housing 10. A plurality of material tubes 12 are fixedly connected between the two brackets 11 in a uniformly staggered manner. The two ends of each material tube 12 extending out of the bracket 11 are sequentially connected in series head to tail through elbows 20 to form a material conveying passage. A feed pipe head 21 and a discharge pipe head 22 are fixedly connected to the outside of the housing 10 at the starting point and the end point of the material conveying passage respectively. A water tank 31 is fixedly connected to the bottom of the housing 10. A water pump 26 communicating with the water tank 31 is fixedly connected to the outside of the bottom of the housing 10. The output end of the water pump 26 is connected in communication with a water guide pipe 27. A plurality of spray pipe brackets 30 are fixedly connected between the tops of the two brackets 11 in a uniformly distributed manner. A spray pipe 28 is fixedly connected to the spray pipe bracket 30. A spray head 29 is fixedly connected in communication to the bottom side of the spray pipe 28 at a position corresponding to the material tube 12. The water guide pipe 27 is connected in communication with the spray pipe 28. A plurality of axial flow fans 33 are fixedly connected to the top of the housing 10. Air inlet grilles 34 are fixedly connected to both sides of the bottom side of the housing 10.

[0040] By arranging the spray head 29 to continuously spray clean water and using the axial flow fan 33 to suck air to form an air flow inside the housing 10, the sprayed water can quickly evaporate and absorb heat, thereby cooling the material flowing through the material tube 12. By arranging the material tube 12 and the elbow 20 to be connected in series head to tail, the material can continuously flow in the material conveying passage, so that the material can be fully cooled in the housing 10 and then discharged, ensuring the cooling effect on the material.

[0041] As Figures 1-9 shown, a sleeve 13 is fixedly connected to the outside of each material tube 12. A group of ridges 14 are symmetrically distributed and fixedly connected to the upper and lower sides of each sleeve 13. In this embodiment, it is preferably that the sleeve 13 and the ridge 14 are made of metal aluminum with good thermal conductivity. A covering sleeve 17 is sleeved on the outside of each group of ridges 14 and the corresponding sleeve 13. Preferably, the covering sleeve 17 is made of silicone rubber material with good thermal conductivity and elasticity. The material tube 12, the sleeve 13, the ridge 14 and the covering sleeve 17 form a heat exchange tube unit with an approximately diamond-shaped cross-section. Water injection heads 16 and water absorption heads 36 communicating with the inside of the covering sleeve 17 are fixedly connected to the end parts of the two ridges 14 in each heat exchange tube unit respectively.

[0042] Through the staggered and spaced heat exchange tube units in the shape of diamonds, the air flow can flow more smoothly around each heat exchange tube unit, ensuring that the air flow flows evenly and fully around each heat exchange tube unit, so that the materials flowing through each material tube 12 can obtain a uniform and sufficient cooling effect.

[0043] After prolonged use, a large amount of industrial water evaporates and scales on the surface of the coating sleeve 17. By injecting water into the coating sleeve 17 to make it expand, the scale on the surface of the coating sleeve 17 can be broken and fallen off. The descaling speed is fast and there is little scale residue, avoiding the influence of scale on the surface of the coating sleeve 17 on the evaporation cooling efficiency.

[0044] Moreover, since the sleeve 13, the ridge 14, and the coating sleeve 17 are made of materials with good heat conductivity, the heat of the material in the material pipe 12 can be well absorbed, ensuring the heat dissipation effect and efficiency. And by setting the ridge 14 to support the coating sleeve 17, the coating sleeve 17 can be more closely attached to the sleeve 13 outside the ridge 14, avoiding wrinkles on the coating sleeve 17, and further avoiding the residual air between the coating sleeve 17 and the sleeve 13 and the ridge 14 from affecting the heat conduction efficiency.

[0045] As Figures 1-9 shown, a plurality of grooves 18 are uniformly distributed on the outer surface of each coating sleeve 17. Each groove 18 is arranged in a wavy shape. On the two sides of the two brackets 11 close to each other, hoop 19 sleeved on the outside of the coating sleeve 17 is fixedly connected at the corresponding positions of each coating sleeve 17 respectively. A sunken water tank 15 is arranged on the outer surface of each ridge 14 at the corresponding position of the water injection head 16.

[0046] By setting the grooves 18, more sprayed water can be retained on the surface of the coating sleeve 17. And since the grooves 18 are arranged in a wavy shape, the surface area in contact with the air flow is increased, so that more water can be evaporated when the air flow blows over the surface of the coating sleeve 17, thereby effectively improving the cooling efficiency. And by setting the hoop 19, it can effectively seal both ends of the coating sleeve 17 during the process of injecting water into the coating sleeve 17 to expand, avoiding leakage at both ends of the coating sleeve 17 and causing the coating sleeve 17 to be unable to expand for descaling.

[0047] At the same time, by using the water tank 15, a sufficient water storage space can be obtained inside the coating sleeve 17 when injecting water, so that the water pressure can fully act to make the coating sleeve 17 expand stably, and it acts as a drainage tank when draining water, so that the water in the coating sleeve 17 can flow out smoothly, avoiding the residual water that cannot be discharged between the coating sleeve 17 and the ridge 14 and causing the coating sleeve 17 to be unable to closely adhere to the ridge 14 and affecting the heat conduction efficiency.

[0048] As Figures 1-9 shown, a filter screen 32 is fixedly connected inside the water tank 31, and uniformly distributed fine leakage holes are arranged on the surface of the filter screen 32.

[0049] By setting the filter screen 32, it can avoid the scale after falling off directly falling into the water tank 31 after descaling, thus avoiding the scale being sucked into the water pump 26 and blocking the pipeline.

[0050] As Figures 1-9As shown, each water injection head 16 is fixedly and communicatively connected with a water injection pipe 23 through one end of the support 11, each water suction head 36 is fixedly and communicatively connected with a water suction pipe 24 through one end of the support 11, a second reversing valve 35 is fixedly and communicatively connected between the water pump 26 and the water tank 31, a first reversing valve 25 is fixedly and communicatively connected between the water pump 26 and the water guide pipe 27, one end of the first reversing valve 25 is fixedly and communicatively connected with the water injection pipe 23, and one end of the second reversing valve 35 is fixedly and communicatively connected with the water suction pipe

[0051] By setting the first reversing valve 25 and the second reversing valve 35, the water use path can be changed, so that the water in the water tank 31 can be directly used to inject water into the cladding 17 to make the cladding 17 expand for descaling, and after the descaling is completed, the water in the cladding 17 can be quickly sucked out and returned to the water tank 31 again, without the need for external additional driving intervention and without stopping the machine to complete the descaling process.

[0052] In this embodiment, initially, the first reversing valve 25 connects the water guide pipe 27 and the water pump 26, the second reversing valve 35 connects the water tank 31 and the water pump 26, the water tank 31 contains a sufficient amount of industrial water, and the water tank 31 can be connected to the external water pipeline to supplement the water loss. The operator connects the feed pipe head 21 and the discharge pipe head 22 to the material conveying pipeline, and the material can continuously flow in the feeding path formed by the head-to-tail series connection of each material pipe

[0053] During use, the operator first starts the axial flow fan 33, so that the axial flow fan 33 operates to suck the outside air into the housing 10 from the air inlet grille 34 and finally discharge the air from the axial flow fan 33, so that an upward airflow is formed in the housing 10. At the same time, the water pump 26 is started, and the water pump 26 continuously sucks the industrial water in the water tank 31 and transports it to the spray pipe 28 through the water guide pipe 27. The industrial water in the spray pipe 28 is continuously sprayed from the nozzle 29 onto each heat exchange tube unit. The sprayed water is quickly evaporated and absorbs heat under the action of the airflow, so that the cooling effect can be achieved.

[0054] During the cooling process, the water is sprayed into the grooves 18 on the surface of the cladding 17. Due to the surface tension of the water, more water can be retained in the grooves 18, and the grooves 18 are wavy, which greatly increases the contact area between the water and the airflow, so that more water can be evaporated when the airflow blows over the surface of the cladding 17, thereby effectively improving the cooling effect. Moreover, since the heat exchange tube units are arranged in a diamond shape and staggered at intervals, the airflow can flow smoothly between each heat exchange tube unit, increasing the airflow velocity and thus improving the evaporation efficiency and even the cooling effect.

[0055] After long-term use, due to the relatively high calcium and magnesium content in industrial water, scale will form on the surface of the cladding sleeve 17 during the evaporation process, reducing the heat conduction efficiency, increasing energy consumption and even causing equipment damage. At this time, the operator controls the switching of the first reversing valve 25 so that the first reversing valve 25 connects the water pump 26 and the water injection pipe 23. Then the water pump 26 sucks the water in the water tank 31 and injects it into the cladding sleeve 17 through the water injection pipe 23. Since both ends of the cladding sleeve 17 are restricted by the hoop 19 and will not leak out, water continuously injects into the cladding sleeve 17 from the water injection head 16 and gradually causes the cladding sleeve 17 to expand outward under the water pressure. Then the scale attached to the surface of the cladding sleeve 17 will crack and fall off.

[0056] After the scale is cleaned up, switch the first reversing valve 25 to reconnect the water guide pipe 27 and the water pump 26. At the same time, switch the second reversing valve 35 to connect the water pump 26 and the water suction pipe 24. Then the water pump 26 continuously sucks out the water in the cladding sleeve 17 and injects it into the spray pipe 28. Then the water sprays out from the spray head 29 to wash away the residual scale on the surface of the cladding sleeve 17 to ensure the descaling effect. After all the water in the cladding sleeve 17 is sucked out, the cladding sleeve 17 adheres to the surface of the convex ridge 14 and the housing 13 again, and there is no scale attached to the surface, ensuring good heat conduction efficiency. After all the water in the cladding sleeve 17 is drained and the cladding sleeve 17 fits tightly with the surfaces of the housing 13 and the convex ridge 14 again, switch the second reversing valve 35 again to connect the water pump 26 and the water tank 31, and then the evaporation cooling work can be carried out again.

[0057] Compared with the traditional method of disassembling and cleaning scale, it is more convenient and efficient. Moreover, the method of removing scale by expanding to clean the scale has a more thorough effect, is not easy to produce residues, and directly injects water into the cladding sleeve 17 through the water pump 26 to make it expand, without the need for external drive access and without additional energy consumption. Compared with the existing technology of using an additional power device to brush the surface of the pipeline to remove scale, the complexity of the structure is greatly reduced, thus reducing the failure rate, and the function of cleaning scale can be completed without shutting down the machine, saving the time wasted in shutdown processing and improving the working efficiency of the cooler.

[0058] During the process of injecting water into and draining water from the cladding sleeve 17, the water tank 15 can ensure the smooth injection and drainage of water, avoiding the difficulty of quickly injecting water into the cladding sleeve 17 to make it expand, and avoiding the residual excess water in the cladding sleeve 17 after drainage, which causes the cladding sleeve 17 to not fit tightly with the convex ridge 14 and the housing 13 for efficient heat conduction.

[0059] The above-mentioned first reversing valve 25, water pump 26, axial flow fan 33, second reversing valve 35, etc. are mature existing technologies, and the structures in the drawings are only for illustration and will not be elaborated herein.

[0060] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in names as a way to distinguish components, but rather use the difference in the functions of components as the criterion for distinction. As used throughout the specification and claims, the term "comprising" is an open-ended term and should be interpreted as "including but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0061] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such commodity or system. Without more limitations, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the commodity or system including the said element.

[0062] The above description shows and describes several preferred embodiments of the present application. However, as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the application concept described herein through the above teachings or the technology or knowledge in the relevant field. And any changes and variations made by those skilled in the art without departing from the spirit and scope of the present application should fall within the protection scope of the appended claims of the present application.

Claims

1. A tube box type evaporative cooler, characterized in that, The tube box type evaporative cooler includes: A housing (10), in which a water supply component is arranged, and a fan component is arranged; A bracket (11), between two of the brackets (11), a plurality of material tubes (12) are fixedly connected in a uniformly distributed manner. A sleeve (13) is sleeved outside each of the material tubes (12). On the upper and lower sides of each sleeve (13), a set of symmetric ridges (14) are fixedly connected. An elastic coating sleeve (17) is sleeved outside each set of the ridges (14) and the corresponding sleeve (13); Wherein, two of the brackets (11) are fixedly connected to the inside of the housing (10), and the material tubes (12), the sleeves (13), the ridges (14) and the coating sleeve (17) form a heat exchange tube unit with an approximately diamond-shaped cross-section.

2. The tube box type evaporative cooler according to claim 1, characterized in that, The heat exchange tube units are arranged in a uniformly staggered manner, and the gaps between the heat exchange tube units are uniformly consistent. The sleeves (13) and the ridges (14) are made of a metal material with good thermal conductivity.

3. A tube box type evaporative cooler according to claim 1, characterized in that, On the outer surface of each coating sleeve (17), a plurality of grooves (18) are uniformly distributed. Each of the grooves (18) is in a wavy shape.

4. The tube box type evaporative cooler according to claim 1, characterized in that, The ends of each of the material tubes (12) passing through between the two brackets (11) are respectively connected in series at the head and the tail through a plurality of elbow pipes (20) to form a continuous material conveying passage. A charging pipe head (21) and a discharging pipe head (22) are fixedly connected to the outside of the housing (10) at the starting point and the ending point of the material conveying passage respectively. The charging pipe head (21) and the discharging pipe head (22) are fixedly connected and communicated with the corresponding material tubes (12).

5. A tube box type evaporative cooler according to claim 1, characterized in that, The water supply component includes a spray pipe bracket (30). Between two of the brackets (11), a plurality of spray pipe brackets (30) are fixedly connected in a uniformly distributed manner above the material tubes (12). A spray pipe (28) is fixedly connected to the spray pipe bracket (30). At the corresponding position of each material tube (12) at the bottom side of the spray pipe (28), a spray head (29) is fixedly connected and communicated.

6. The tube box type evaporative cooler according to claim 5, characterized in that, A water tank (31) is fixedly connected to the bottom of the housing (10). A water pump (26) communicated with the inside of the water tank (31) is fixedly connected to the outside of the housing (10). The output end of the water pump (26) is communicated with a water guide pipe (27). The water guide pipe (27) is communicated with the spray pipe (28).

7. The tube box type evaporative cooler according to claim 6, characterized in that, At the corresponding position of each coating sleeve (17) on the surface of each bracket (11), a hoop (19) sleeved outside the coating sleeve (17) is fixedly connected. In each heat exchange tube unit, two of the ridges (14) are respectively fixedly connected with a water injection head (16) and a water absorption head (36) communicated with the inside of the coating sleeve (17). One end of each water injection head (16) passing through the bracket (11) is fixedly connected and communicated with a water injection pipe (23). One end of each water absorption head (36) passing through the bracket (11) is fixedly connected and communicated with a water absorption pipe (24).

8. The tube box type evaporative cooler according to claim 7, characterized in that, On the outer surface of each of the ridges (14), a sunken water tank (15) is provided at the corresponding positions of the water injection head (16) and the water absorption head (36). Each of the water tanks (15) is respectively communicated with the water injection head (16) and the water absorption head (36). A second reversing valve (35) is fixedly connected in a communicating manner between the water pump (26) and the water tank (31). A first reversing valve (25) is fixedly connected in a communicating manner between the water pump (26) and the water guide pipe (27). One end of the first reversing valve (25) is fixedly connected in a communicating manner with the water injection pipe (23). One end of the second reversing valve (35) is fixedly connected in a communicating manner with the water suction pipe (24).

9. The tube box type evaporative cooler according to claim 6, characterized in that, A filter screen (32) is fixedly connected in the water tank (31). The filter screen (32) has uniformly fine leakage holes.

10. The tube box type evaporative cooler according to claim 1, characterized in that, The fan component includes an axial flow fan (33). A plurality of axial flow fans (33) communicating with the inside of the housing (10) are fixedly connected to the top of the housing (10). A plurality of air inlet grilles (34) are fixedly connected to the bottom side of the housing (10).

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