Cooling system for a heat treatment furnace circulating fan

Abstract

The present application belongs to the field of fan cooling technology, and particularly relates to a cooling system for a heat treatment furnace circulating fan, which comprises a water tank with internal water storage, a plurality of fan assemblies, and a cooling tower, a pipe one is arranged between a water inlet end one of the water tank and water outlet ends of the plurality of fan assemblies, a pipe two is arranged between a water outlet end one of the water tank and a water inlet end of the cooling tower, a pipe three is arranged between a water outlet end two of the water tank and the water inlet end of the cooling tower, and a pipe four is arranged between a water inlet end two of the water tank and a water outlet end of the cooling tower, and each of the pipe one, the pipe two, the pipe three and the pipe four is provided with a pump. In the cooling system for the heat treatment furnace circulating fan, the cooling efficiency is accelerated by increasing the cooling tower, the water for cooling in the water tank is kept at a low temperature, the cooling capacity is increased, the service life of the water-cooled fan is prolonged, and the uniformity in the furnace and the product quality are ensured.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of fan cooling, and particularly relates to a cooling system for a heat treatment furnace circulating fan. BACKGROUND

[0002] In order to ensure uniformity, a straight connection type water-cooled fan with relatively good cooling effect is generally installed on the top of a two-type heat treatment furnace, because strong air flow stirring is needed, a high-power motor is used, and the motor on the top of the furnace simultaneously faces a large amount of heat generated by the strong power of the motor and the heat of the furnace body brought by the direct connection shaft of the motor.

[0003] Most water-cooled fans face the problem of insufficient cooling capacity because the running capacity and the cooling capacity are not matched. The insufficient cooling capacity of the water-cooled fan can cause the circulating water temperature to rise, the cooling water cannot take away a large amount of heat in the fan, the fan rotor insulation layer is burnt out, the motor is burnt out, the equipment is damaged, and normal production is affected.

[0004] In view of the above problems, a cooling system for a heat treatment furnace circulating fan is designed. SUMMARY

[0005] The application proposes the following technical scheme in view of the problems in the prior art:

[0006] The cooling system for the heat treatment furnace circulating fan comprises a water tank for storing water, a plurality of fan assemblies, and a cooling tower, a pipe one is arranged between a water inlet end one of the water tank and water outlet ends of the plurality of fan assemblies, a pipe two is arranged between a water outlet end one of the water tank and a water inlet end of the cooling tower, a pipe three is arranged between a water outlet end two of the water tank and the water inlet end of the cooling tower, a pipe four is arranged between a water inlet end two of the water tank and a water outlet end of the cooling tower, and pumps are arranged on the pipe one, the pipe two, the pipe three, and the pipe four.

[0007] The fan assembly comprises an open-top box body, an upper cover arranged above the box body, a fan arranged in the box body, a wet curtain covering the upper side of the fan, a water storage cavity formed below the inside of the box body, the water storage cavity being in communication with the pipe one, a plurality of spray pipes distributed on the upper cover, the spray pipes being in communication with the pipe two through branch pipes, and spray holes being formed in the lower end of the spray pipes.

[0008] As a preferred technical scheme, the water inlet end one and the water outlet end two are arranged on the upper part of the water tank, and the water outlet end one and the water inlet end two are arranged on the lower part of the water tank.

[0009] The size of the water tank is 2200X1200X1500mm, and the water stored in the water tank is soft water.

[0010] As a preferred form of the above technical solution, the branch pipe is provided with a water volume adjusting assembly and a flow sensor, and the water volume adjusting assembly is located between the second pipe and the flow sensor.

[0011] As a preferred form of the above technical solution, the branch pipe is provided with a mounting section.

[0012] The water volume adjusting assembly comprises a baffle one and a baffle two arranged inside the mounting section, and the baffle two reciprocates in the horizontal direction relative to the baffle one.

[0013] As a preferred form of the above technical solution, the baffle one is connected with the inner wall of the mounting section, the baffle two is connected with a screw rod, the screw rod is threadedly connected with a screw sleeve, and one end of the screw sleeve penetrates through the side wall of the mounting section and is rotationally connected with the side wall.

[0014] The baffle one is provided with a groove one and a block one, the baffle two is provided with a groove two and a block two, the block one is inserted into the groove two and is slidingly connected with the groove two, and the block two is inserted into the groove one and is slidingly connected with the groove one.

[0015] As a preferred form of the above technical solution, the inner top wall of the mounting section is provided with a sealing ring one, and the sealing ring one abuts against the baffle one and the baffle two.

[0016] One end of the screw sleeve located outside the mounting section is closed, and the screw sleeve is mechanically sealed with the mounting section.

[0017] As a preferred form of the above technical solution, a supporting rod is arranged below the spray pipe, and the supporting rod and the upper cover are assembled by screws.

[0018] As a preferred form of the above technical solution, a plurality of spray pipes are arranged, and the plurality of spray pipes are respectively arranged in different regions of the upper cover.

[0019] As a preferred form of the above technical solution, a shunt assembly is arranged between the branch pipe and the spray pipe.

[0020] The shunt assembly comprises a column arranged inside the branch pipe, and a plurality of hydrophobic holes are arranged in the column, and the hydrophobic holes are opposite to water inlets of the spray pipes.

[0021] As a preferred form of the above technical solution, an annular groove is arranged on the outer wall of the column, a sealing ring two is arranged inside the annular groove, and the sealing ring two abuts against the inner wall of the branch pipe.

[0022] As a preferred form of the above technical solution, the shunt assembly further comprises a connecting piece penetratingly connected with the branch pipe.

[0023] The connecting piece is provided with a hole one for accommodating the spray pipe and a hole two for accommodating the column body, the connecting piece is communicated with the branch pipe through the hole two, the number of the hole one is consistent with the number of the spray pipe, and one end of the plurality of hole ones is communicated and communicated with the hole two.

[0024] As the preferred of the above technical solution, the lower end of the column body extends axially to form a limiting sleeve.

[0025] When the spray pipe is connected with the column body, the spray pipe is located in the inside of the limiting sleeve, and the plurality of spray pipes abut each other.

[0026] As the preferred of the above technical solution, the limiting sleeve extends radially to form a positioning strip, and the spray pipe is provided with a positioning groove matched with the positioning strip.

[0027] When the spray pipe is connected with the column body, the positioning strip is located in the inside of the positioning groove.

[0028] As the preferred of the above technical solution, the connecting piece is a split structure, the connecting piece includes an upper plate and a lower plate, the hole one is distributed on the upper plate and the lower plate, and the hole two is distributed on the upper plate.

[0029] As the preferred of the above technical solution, the upper plate and the lower plate are assembled by bolts.

[0030] The beneficial effects of the present application are:

[0031] 1. In the technical solution of the cooling system for the circulating fan of the heat treatment furnace, the cooling efficiency is accelerated by increasing the cooling tower, the water in the water tank for cooling is kept at a lower temperature, the cooling capacity is increased, and the service life of the water-cooled fan is improved, thereby ensuring the uniformity in the furnace and the product quality.

[0032] 2. In the technical solution of the cooling system for the circulating fan of the heat treatment furnace, the water amount adjusting assembly and the flow sensor are additionally provided, the cooling water is distributed according to the cooling capacity of each fan assembly, the cooling water consumption of each fan assembly is ensured, and thus the required cooling capacity of each fan assembly is achieved.

[0033] 3. In the technical solution of the cooling system for the circulating fan of the heat treatment furnace, the shunt assembly is additionally provided, the water flow is divided into multiple water flows with the same flow by the water drain hole, the multiple water flows flow into the inside of the corresponding spray pipes, the water consumption in the corresponding area of each spray pipe is ensured to be the same, and the uniformity of the total area cooling capacity is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 The structure schematic diagram of the cooling system for the circulating fan of the heat treatment furnace in the present application is shown.

[0035] Figure 2 The structure schematic diagram of the cooling system for the circulating fan of the heat treatment furnace in the present application is shown.Figure 1 Schematic diagram of the middle part structure;

[0036] Figure 3 Shown is Figure 2 Schematic diagram of the middle part structure;

[0037] Figure 4 Shown is Figure 2 Schematic diagram of the water quantity adjusting assembly structure;

[0038] Figure 5 Shown is the water quantity adjusting assembly top view schematic diagram;

[0039] Figure 6 Shown is Figure 5 Schematic diagram of the baffle one and baffle two structure;

[0040] Figure 7 Shown is the distribution of the spray pipe in the application schematic diagram;

[0041] Figure 8 Shown is Figure 3 Schematic diagram of the shunt assembly structure;

[0042] Figure 9 Shown is Figure 8 Schematic diagram of the column structure;

[0043] Figure 10 Shown is the column top view schematic diagram;

[0044] Figure 11 Shown is Figure 8 Schematic diagram of the spray pipe local structure;

[0045] Figure 12 Shown is Figure 8 Schematic diagram of the connecting piece structure.

[0046] Fig. 1: water tank 10; pipe one 11; pipe two 12; pipe three 13; pipe four 14; branch pipe 15; mounting section 151;

[0047] Fan assembly 20; tank 21; fan 22; water storage cavity 23; wet curtain 24; upper cover 25; spray pipe 26; positioning groove 261; support rod 27;

[0048] Cooling tower 30;

[0049] Water quantity adjusting assembly 40; baffle one 41; groove one 411; block one 412; baffle two 42; groove two 421; block two 422; screw rod 43; screw sleeve 44;

[0050] Flow sensor 50;

[0051] Shunt assembly 60; cylinder 61; hydrophobic hole 611; limiting sleeve 612; positioning strip 613; connecting piece 62; upper plate 621; lower plate 622; hole one 623; hole two 624; bolt 625. DETAILED DESCRIPTION

[0052] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be described clearly and completely below in conjunction with the embodiments.

[0053] Embodiment 1

[0054] As shown in Figure 1 , Figure 2 , Figure 3 The cooling system for the circulating fan of the heat treatment furnace comprises a water tank 10 internally storing water, a plurality of fan assemblies 20, and a cooling tower 30. A pipe one 11 is arranged between a water inlet end one of the water tank 10 and water outlet ends of the plurality of fan assemblies 20. A pipe two 12 is arranged between a water outlet end one of the water tank 10 and a water inlet end of the cooling tower 30. A pipe three 13 is arranged between a water outlet end two of the water tank 10 and the water inlet end of the cooling tower 30. A pipe four 14 is arranged between a water inlet end two of the water tank 10 and a water outlet end of the cooling tower 30. Pumps are arranged on the pipe one 11, the pipe two 12, the pipe three 13, and the pipe four 14.

[0055] The fan assembly 20 comprises an open-top box 21, an upper cover 25 arranged above the box 21, a fan 22 arranged inside the box 21, a wet curtain 24 covering the upper side of the fan 22, a water storage cavity 23 formed below the inside of the box 21, the water storage cavity 23 being in communication with the pipe one 11, and a plurality of spray pipes 26 distributed on the upper cover 25, the spray pipes 26 being in communication with the pipe two 12 through branch pipes 15, and the lower end of each spray pipe 26 being provided with a spray hole. In the fan assembly 20, water in the spray pipes 26 is sprayed out through the spray holes to form a water flow on the wet curtain 24, thereby taking away the heat on the fan 22 and storing the heat in the water storage cavity 23.

[0056] In the technical solution of the cooling system for the circulating fan of the heat treatment furnace, the water with a high temperature inside the water tank 10 enters the inside of the cooling tower 30 through the pipe three 13, the water cooled by the cooling tower 30 enters the inside of the water tank 10 through the pipe four 14, the cooling water inside the water tank 10 is delivered to the position of the fan assembly 20 through the pipe two 12 to absorb heat and cool the fan 22, and then enters the inside of the water tank 10 through the pipe one 11, thereby forming the cooling system for the circulating fan of the heat treatment furnace.

[0057] In the cooling system for the circulating fan of the heat treatment furnace, the cooling tower 30 is added to accelerate the cooling efficiency, the water for cooling inside the water tank 10 is kept at a low temperature, the cooling capacity is increased, and the service life of the water-cooled fan is prolonged, thereby ensuring the uniformity in the furnace and the product quality.

[0058] Solve the problem of insufficient cooling capacity of water-cooled fan, save the large purchase cost of frequent burning of expensive high-temperature direct-connected circulating fan, prolong the service life of the equipment, reduce the impact on production progress caused by equipment failure, and can be used for all water-cooled circulating equipment with defective cooling capacity.

[0059] In order to meet the temperature characteristics of water, that is, the temperature of the upper part is high and the temperature of the lower part is low in the same water tank, as shown in Figure 1 、 Figure 2 、 Figure 3 The water inlet end one and the water outlet end two are arranged at the upper part of the water tank 10, and the water outlet end one and the water inlet end two are arranged at the lower part of the water tank 10.

[0060] The water with high temperature after the cooling fan is collected by pipe one 11, and is transported to the upper part of the water tank 10 by the water inlet end one; the water with high temperature at the upper part of the water tank 10 enters the inside of the cooling tower 30 by the water outlet end two and pipe three 13, and is cooled; the water with low temperature at the lower part of the water tank 10 is transported to the fan assembly 20 by the water outlet end one and pipe two 12; the water cooled in the cooling tower 30 enters the lower part of the water tank 10 by pipe four 14 and the water inlet end two, which meets the temperature characteristics of water and has higher practicability.

[0061] As shown in Figure 1 , in order to further increase the cold and heat exchange capacity, the size of the water tank 10 is increased from the original 2000X1000X1000mm to 2200X1200X1500mm, and the volume of the water tank 10 is increased to increase its storage capacity and improve the cold and heat exchange capacity.

[0062] The size of the water tank 10 is 2200X1200X1500mm, which solves the problem that in the use process, because 20 cooling fans of two large-scale trolley furnaces share the water tank 10, the temperature of the water tank 10 rises very high when working at the same time, which cannot play a role in cooling, and often causes the water tank to evaporate and burn the motor, which seriously increases the production cost, increases the manpower and material resources, and affects the progress of the product.

[0063] As shown in Figure 1 , the water stored in the water tank 10 is soft water, that is, the circulating water in the cooling system of the heat treatment furnace circulating fan is soft water. The setting of connecting soft water reduces the risk of blocking the pipeline and burning the motor caused by water scaling and pipe rust.

[0064] In order to realize the assembly between the spray pipe 26 and the upper cover 25, as shown in Figure 7 , the support rod 27 is arranged below the spray pipe 26, and the support rod 27 and the upper cover 25 are assembled by screws. The spray pipe 26 is fixed between the support rod 27 and the upper cover 25, and has good stability.

[0065] To further increase the cooling capacity of the system, as shown in Figure 7 The spray pipe 26 is provided with multiple, multiple spray pipe 26 is distributed in different areas of the upper cover 25. In this embodiment, the spray pipe 26 is provided with four, four spray pipe 26 will be divided into four areas, namely the wet curtain 24 corresponding to the four spray area.

[0066] By increasing the distribution density of the spray pipe 26, that is, increasing the cooling water flow area, a large amount of heat is taken away. Solve the situation that the installation site is narrow and other coolers cannot be installed. By installing its front and back, the original water tank temperature rise is reduced from more than 60℃ to 20℃, effectively reducing the temperature of the fan, improving the service life.

[0067] Example 2

[0068] As shown in Figure 2 , Figure 4 , Figure 5 The cooling system for the circulating fan of the heat treatment furnace comprises a water tank 10 for storing water, a plurality of fan assemblies 20, and a cooling tower 30. A pipe 11 is arranged between the water inlet end of the water tank 10 and the water outlet end of the plurality of fan assemblies 20. A pipe 12 is arranged between the water outlet end of the water tank 10 and the water inlet end of the cooling tower 30. A pipe 13 is arranged between the water outlet end of the water tank 10 and the water inlet end of the cooling tower 30. A pipe 14 is arranged between the water inlet end of the water tank 10 and the water outlet end of the cooling tower 30. Pumps are arranged on the pipes 11, 12, 13, and 14.

[0069] The fan assembly 20 comprises an open-topped box 21, an upper cover 25 arranged above the box 21, a fan 22 arranged inside the box 21, a wet curtain 24 arranged above the fan 22, a water storage cavity 23 formed below the inside of the box 21, the water storage cavity 23 being in communication with the pipe 11, a plurality of spray pipes 26 arranged on the upper cover 25, the spray pipes 26 being in communication with the pipe 12 through a branch pipe 15, and spray holes being formed in the lower end of the spray pipes 26. In the fan assembly 20, water in the spray pipes 26 is sprayed out through the spray holes to form a water flow on the wet curtain 24, thereby taking away the heat on the fan 22 and storing the water in the water storage cavity 23.

[0070] In the technical scheme of the cooling system for the circulating fan of the heat treatment furnace, the water with a high temperature in the water tank 10 enters the inside of the cooling tower 30 through the pipe 13, the water cooled by the cooling tower 30 enters the inside of the water tank 10 through the pipe 14, the cooling water in the water tank 10 is transported to the position of the fan assembly 20 through the pipe 12, absorbs heat to cool the fan 22, and then enters the inside of the water tank 10 through the pipe 11, thereby forming the cooling system for the circulating fan of the heat treatment furnace.

[0071] The cooling system of the heat treatment furnace circulating fan is provided with the cooling tower 30, so that the water in the water tank 10 is kept at a low temperature, the cooling capacity is increased, the service life of the water-cooled fan is prolonged, and the uniformity in the furnace and the product quality are ensured.

[0072] The problem of insufficient cooling capacity of the water-cooled fan is solved, the large amount of purchase cost of the frequently burned high-temperature direct-connected circulating fan is saved, the service life of the equipment is prolonged, the influence on the production progress caused by the equipment failure is reduced, and the water-cooled circulating equipment with defective cooling capacity can be used.

[0073] In order to meet the temperature characteristics of water, that is, the water with high temperature is located at the upper part and the water with low temperature is located at the lower part in the same water tank, as shown in Figure 4 、 Figure 5 、 Figure 6 , the water inlet end one and the water outlet end two are arranged at the upper part of the water tank 10, and the water outlet end one and the water inlet end two are arranged at the lower part of the water tank 10.

[0074] The water with high temperature after the cooling fan is collected by the pipe one 11, and is transported to the upper part of the water tank 10 by the water inlet end one; the water with high temperature at the upper part of the water tank 10 enters the inside of the cooling tower 30 by the water outlet end two and the pipe three 13, and is cooled; the water with low temperature at the lower part of the water tank 10 is transported to the fan assembly 20 by the water outlet end one and the pipe two 12; the water cooled in the cooling tower 30 enters the lower part of the water tank 10 by the water inlet end two and the pipe four 14, meets the temperature characteristics of water, and is more practical.

[0075] As shown in Figure 4 , in order to further increase the heat exchange capacity, the size of the water tank 10 is increased from 2000X1000X1000mm to 2200X1200X1500mm, the volume of the water tank 10 is increased, the storage capacity is increased, and the heat exchange capacity is improved.

[0076] The size of the water tank 10 is 2200X1200X1500mm, which solves the problem that in the use process, because 20 cooling fans of two large-scale trolley furnaces share the water tank 10, the temperature of the water tank 10 rises very high when working at the same time, cannot play a role in cooling, often causes the water tank to evaporate and burn the motor, seriously increases the production cost, increases the manpower and material resources, and affects the progress of the product.

[0077] As shown in Figure 5 , the water stored in the water tank 10 is soft water, that is, the circulating water in the cooling system of the heat treatment furnace circulating fan is soft water. The setting of the soft water reduces the risk of pipe blockage and motor burning caused by water scaling and pipe rust.

[0078] In order to realize the assembly between the spray pipe 26 and the upper cover 25, as shown inFigure 6 As shown in the drawings, the support rod 27 is arranged below the spray pipe 26, and the support rod 27 is assembled with the upper cover 25 by screws. The spray pipe 26 is fixed between the support rod 27 and the upper cover 25, and has good stability.

[0079] In order to further increase the cooling capacity of the system, as shown in the drawings, Figure 4 As shown in the drawings, the spray pipe 26 is provided with a plurality of spray pipes 26, and the plurality of spray pipes 26 are distributed in different areas of the upper cover 25. In this embodiment, the spray pipe 26 is provided with four spray pipes 26, and the four spray pipes 26 divide the upper cover 25 into four areas, that is, the wet curtain 24 corresponds to four spray areas.

[0080] By increasing the distribution density of the spray pipe 26, that is, increasing the cooling water flow area, a large amount of heat is taken away. The situation that the installation site is narrow and other coolers cannot be installed is solved. By installing the front and back, the original water tank temperature rise is reduced from more than 60 DEG C to 20 DEG C, effectively reducing the temperature of the fan, and prolonging the service life.

[0081] Because one water tank 10 corresponds to a plurality of fan assemblies 20, there is a problem of uneven distribution of cooling water, thereby causing the cooling capacity of each fan assembly 20 to be different. In view of this problem, the specific measures are as follows, as shown in the drawings, Figure 5 As shown in the drawings, the branch pipe 15 is provided with a water quantity adjusting assembly 40 and a flow sensor 50, and the water quantity adjusting assembly 40 is located between the pipe two 12 and the flow sensor 50.

[0082] The flow sensor 50 is used to test the water flow of the branch pipe 15. According to the required amount of cooling water of each fan assembly 20, when the water flow of the branch pipe 15 is greater than the required amount, the water quantity adjusting assembly 40 is used to reduce the water quantity, and when the water flow of the branch pipe 15 is less than the required amount, the water quantity adjusting assembly 40 is used to reduce the water quantity.

[0083] In the technical scheme of the cooling system for the heat treatment furnace circulating fan, the water quantity adjusting assembly 40 and the flow sensor 50 are additionally arranged, the cooling water is distributed according to the cooling capacity of each fan assembly 20, the water consumption of each fan assembly 20 is ensured, and thus the required cooling capacity of each fan assembly 20 is ensured.

[0084] In order to solve the installation problem of the water quantity adjusting assembly 40, as shown in the drawings, Figure 4 , Figure 5 As shown in the drawings, the branch pipe 15 is provided with an installation section 151.

[0085] As shown in the drawings, Figure 1 , Figure 2 , Figure 3 As shown in the drawings, the water quantity adjusting assembly 40 comprises a baffle one 41 and a baffle two 42 arranged in the installation section 151, and the baffle two 42 reciprocates in the horizontal direction relative to the baffle one 41. As shown in the drawings,

[0086] In the water flow regulating assembly 40, the distance between the baffle one 41 and the baffle two 42 is controlled to control the space through which the water flow passes, thereby achieving the purpose of controlling the water flow.

[0087] To realize the reciprocating movement of the baffle two 42 relative to the baffle one 41 in the horizontal direction, the baffle one 41 is connected to the inner wall of the mounting section 151, and the baffle two 42 is connected with a screw rod 43, which is threadedly matched with a screw sleeve 44, one end of the screw sleeve 44 penetrating through the side wall of the mounting section 151 and being rotationally matched therewith. Figure 1 Figure 2 Figure 3 The baffle one 41 has a groove one 411 and a block one 412, and the baffle two 42 has a groove two 421 and a block two 422, the block one 412 being inserted into the interior of the groove two 421 and being slidingly matched therewith, and the block two 422 being inserted into the interior of the groove one 411 and being slidingly matched therewith.

[0088] The insertion of the block one 412 into the interior of the groove two 421 and the sliding matching therebetween, and the insertion of the block two 422 into the interior of the groove one 411 and the sliding matching therebetween, circumferentially limit the baffle two 42, so that it can only move linearly and cannot rotate circumferentially. Under the premise that the baffle two 42 is circumferentially limited and the screw rod 43 is threadedly matched with the screw sleeve 44, when the screw sleeve 44 is rotated, the baffle two 42 is driven by the screw rod 43 to reciprocate in the horizontal direction, that is, the distance between the baffle two 42 and the baffle one 41 is increased (opened) or reduced (closed).

[0089] To further ensure the accuracy of the water flow, as shown in

[0090] The inner top wall of the mounting section 151 is provided with a sealing ring one, which is in abutment with the baffle one 41 and the baffle two 42, so as to prevent the water flow from overflowing between the inner top wall of the mounting section 151 and the baffle one 41 and the baffle two 42. Figure 1 Figure 1 As shown in

[0091] The one end of the screw sleeve 44 located outside the mounting section 151 is closed, and the screw sleeve 44 is mechanically sealed with the mounting section 151. This avoids the water flow overflowing between the screw rod 43 and the screw sleeve 44, and between the screw sleeve 44 and the side wall of the mounting section 151, and ensures the sealing between the water flow regulating assembly 40 and the branch pipe 15. Figure 7 Figure 7 Embodiment 3

[0092] By extending the embodiment 2, as shown in

[0093] The one end of the screw sleeve 44 located outside the mounting section 151 is closed, and the screw sleeve 44 is mechanically sealed with the mounting section 151. This avoids the water flow overflowing between the screw rod 43 and the screw sleeve 44, and between the screw sleeve 44 and the side wall of the mounting section 151, and ensures the sealing between the water flow regulating assembly 40 and the branch pipe 15. Figure 2 Figure 4 Figure 5 ​​​​​​​As shown, the cooling system for the circulating fan of the heat treatment furnace comprises a water tank 10 with internal water storage, a plurality of fan assemblies 20, a cooling tower 30, a pipe 11 is arranged between the water inlet end one of the water tank 10 and the water outlet end of the plurality of fan assemblies 20, a pipe 12 is arranged between the water outlet end one of the water tank 10 and the water inlet end of the cooling tower 30, a pipe 13 is arranged between the water outlet end two of the water tank 10 and the water inlet end of the cooling tower 30, and a pipe 14 is arranged between the water inlet end two of the water tank 10 and the water outlet end of the cooling tower 30; and pumps are arranged on the pipes 11, 12, 13 and 14.

[0094] The fan assembly 20 comprises an open-top box body 21, an upper cover 25 arranged above the box body 21, a fan 22 arranged inside the box body 21, a wet curtain 24 covering the upper side of the fan 22, a water storage cavity 23 formed below the inside of the box body 21, the water storage cavity 23 being in communication with the pipe 11, a plurality of spray pipes 26 distributed on the upper cover 25, the spray pipes 26 being in communication with the pipe 12 through branch pipes 15, and spray holes being formed in the lower end of the spray pipes 26; in the fan assembly 20, water in the spray pipes 26 is sprayed out through the spray holes to form a water flow on the wet curtain 24, which carries away the heat on the fan 22 and is then stored in the inside of the water storage cavity 23.

[0095] In the technical scheme of the cooling system for the circulating fan of the heat treatment furnace, the water with a high temperature in the inside of the water tank 10 enters the inside of the cooling tower 30 through the pipe 13, the water cooled by the cooling tower 30 enters the inside of the water tank 10 through the pipe 14, the cooling water in the inside of the water tank 10 is delivered to the position of the fan assembly 20 through the pipe 12 to absorb heat and complete the cooling of the fan 22, and then enters the inside of the water tank 10 through the pipe 11, thereby forming the cooling system for the circulating fan of the heat treatment furnace.

[0096] In the cooling system for the circulating fan of the heat treatment furnace, the cooling tower 30 is added to accelerate the cooling efficiency, the water for cooling in the inside of the water tank 10 is kept at a low temperature, the cooling capacity is increased, and the service life of the water-cooled fan is prolonged, thereby ensuring the uniformity in the furnace and the product quality.

[0097] The problem of insufficient cooling capacity of the water-cooled fan is solved, the large amount of procurement cost of the frequently burned high-temperature direct-connected circulating fan is saved, the service life of the equipment is prolonged, the impact on the production progress caused by equipment failure is reduced, and the cooling system can be used for all water-cooled circulating equipment with defects in cooling capacity.

[0098] In order to meet the temperature characteristics of water, i.e., the water with a high temperature is located above and the water with a low temperature is located below in the same water tank, as shown in Figure 4 、 Figure 5 、 Figure 6 The water inlet end one and the water outlet end two are arranged at the upper part of the water tank 10, and the water outlet end one and the water inlet end two are arranged at the lower part of the water tank 10.

[0099] The water with a higher temperature after cooling the fan is collected through pipe 11 and transported to the upper part of the water tank 10 through inlet 1. The water with a higher temperature in the upper part of the water tank 10 enters the interior of the cooling tower 30 through outlet 2 and pipe 3 13 for water cooling. The water with a lower temperature in the lower part of the water tank 10 is transported to the fan assembly 20 through outlet 1 and pipe 2 12. The water cooled in the cooling tower 30 enters the lower part of the water tank 10 through pipe 4 14 and inlet 2. This meets the temperature characteristics of water and is more practical.

[0100] like Figure 4 As shown, in order to further increase the heat exchange capacity, the size of the water tank 10 has been increased from the original 2000X1000X1000mm to 2200X1200X1500mm. By increasing the volume of the water tank 10, its storage capacity is increased and the heat exchange capacity is improved.

[0101] The water tank 10 is designed with dimensions of 2200X1200X1500mm to address the issue that during operation, the large bogie furnace has two furnaces with a total of 20 cooling fans sharing the water tank 10. This causes the water tank 10 to overheat during simultaneous operation, failing to provide cooling and frequently resulting in water evaporation that burns out the motor. This significantly increases production costs, manpower and material resources, and affects product schedules.

[0102] like Figure 5 As shown, the water stored inside water tank 10 is soft water, meaning that the circulating water used in the cooling system of the heat treatment furnace circulating fan is soft water. Connecting to soft water reduces the risk of pipe blockage due to scale buildup and rust corrosion, which could burn out the motor.

[0103] To achieve the assembly between the spray pipe 26 and the upper cover 25, such as Figure 6 As shown, a support rod 27 is provided below the spray pipe 26, and the support rod 27 is assembled with the upper cover 25 using screws. The spray pipe 26 is fixed between the support rod 27 and the upper cover 25, ensuring good stability.

[0104] To further increase the cooling capacity of this system, such as Figure 4 As shown, multiple spray pipes 26 are provided, and the multiple spray pipes 26 are distributed in different areas of the upper cover 25. In this embodiment, four spray pipes 26 are provided, and the four spray pipes 26 divide the upper cover 25 into four areas, that is, the wet curtain 24 corresponds to four spray areas.

[0105] By increasing the distribution density of the spray pipes 26, i.e. increasing the cooling water flow area, a large amount of heat is carried away. This solves the problem of limited space at the installation site, where it is impossible to install other coolers. By comparing before and after installation, the original water tank temperature rise of over 60℃ has been reduced to 20℃, effectively reducing the fan temperature and extending its lifespan.

[0106] Because one water tank 10 corresponds to multiple fan assemblies 20, there is a problem of uneven distribution of cooling water, resulting in different cooling capacities of each fan assembly 20. To solve this problem, the following specific measures are taken, as shown in Figure 5 The branch pipe 15 is provided with a water amount adjusting assembly 40 and a flow sensor 50, and the water amount adjusting assembly 40 is located between the pipe two 12 and the flow sensor 50.

[0107] The flow sensor 50 is used to test the water flow of the branch pipe 15. According to the required amount of cooling water for each fan assembly 20, when the water flow of the branch pipe 15 is greater than the required amount, the water amount adjusting assembly 40 is used to reduce the water amount, and when the water flow of the branch pipe 15 is less than the required amount, the water amount adjusting assembly 40 is used to reduce the water amount.

[0108] In the technical scheme of the cooling system for the circulating fan of the heat treatment furnace, the water amount adjusting assembly 40 and the flow sensor 50 are added, the cooling water is distributed according to the cooling capacity of each fan assembly 20, the cooling water amount of each fan assembly 20 is ensured, and thus the required cooling capacity of each fan assembly 20 is ensured.

[0109] To solve the installation problem of the water amount adjusting assembly 40, as shown in Figure 4 , Figure 5 The branch pipe 15 is provided with an installation section 151.

[0110] As shown in Figure 3 , Figure 8 , Figure 8 The water amount adjusting assembly 40 includes a baffle one 41 and a baffle two 42 arranged inside the installation section 151, and the baffle two 42 reciprocally moves in the horizontal direction relative to the baffle one 41.

[0111] In the water amount adjusting assembly 40, the distance between the baffle one 41 and the baffle two 42 is controlled to control the space through which the water flow passes, so as to achieve the purpose of controlling the water flow.

[0112] To realize the cooperative arrangement of the reciprocally moving baffle two 42 relative to the baffle one 41 in the horizontal direction, as shown in Figure 9 , Figure 8 , Figure 9 The baffle one 41 is connected with the inner wall of the installation section 151, the baffle two 42 is connected with a screw rod 43, the screw rod 43 is threadedly matched with a screw sleeve 44, one end of the screw sleeve 44 penetrates through the side wall of the installation section 151 and is rotationally matched with the side wall.

[0113] The baffle one 41 has a groove one 411 and a block one 412, the baffle two 42 has a groove two 421 and a block two 422, the block one 412 is inserted into the inside of the groove two 421 and is slidingly matched with the groove two 421, and the block two 422 is inserted into the inside of the groove one 411 and is slidingly matched with the groove one 411.

[0114] The block 412 is inserted into the inner part of the groove 421 and is in sliding fit with it, and the block 422 is inserted into the inner part of the groove 411 and is in sliding fit with it, which limits the baffle 42 in the circumferential direction, so that it can only move linearly and cannot rotate in the circumferential direction. Under the premise that the baffle 42 is limited in the circumferential direction and the screw 43 is threadedly connected with the sleeve 44, when the sleeve 44 is rotated, the baffle 42 is driven by the screw 43 to move reciprocally in the horizontal direction, that is, the distance between the baffles 42 and 41 is increased (opened) or reduced (closed).

[0115] To further ensure the accuracy of the water flow, as shown in Figure 10 , Figure 11 , the inner top wall of the mounting section 151 is provided with a sealing ring 1, which is in contact with the baffles 41 and 42, so as to prevent water from overflowing between the inner top wall of the mounting section 151 and the baffles 41 and 42.

[0116] As shown in Figure 12 , Figure 8 , one end of the sleeve 44 outside the mounting section 151 is closed, and the sleeve 44 is in mechanical seal with the mounting section 151, so as to prevent water from overflowing between the screw 43 and the sleeve 44 and between the sleeve 44 and the side wall of the mounting section 151, and ensure the sealing between the water flow adjusting assembly 40 and the branch pipe 15.

[0117] To ensure the uniformity of the total area cooling capacity of the fan assembly 20, as shown in Figure 9 , Figure 10 , a flow dividing assembly 60 is arranged between the branch pipe 15 and the spray pipe 26.

[0118] The flow dividing assembly 60 includes a column 61 arranged in the branch pipe 15, and a plurality of water holes 611 are arranged in the column 61, the number of which is consistent with that of the spray pipes 26, and the water holes 611 are opposite to the water inlets of the spray pipes 26.

[0119] In the technical scheme of the cooling system for the circulating fan of the heat treatment furnace, the flow dividing assembly 60 is additionally arranged, and the water flow is divided into a plurality of water flows with the same flow by the water holes 611, and the plurality of water flows flow into the corresponding spray pipes 26, respectively, so as to ensure that the water consumption in each corresponding area of the spray pipes 26 is the same, and the purpose of ensuring the uniformity of the total area cooling capacity is achieved.

[0120] To ensure the accuracy of the water consumption in each area, as shown in Figure 11 , Figure 12As shown, the outer wall of the column 61 is provided with an annular groove, and a sealing ring two is arranged in the annular groove and abuts against the inner wall of the branch pipe 15. The sealing ring two is arranged to make the outer wall of the column 61 tightly contact with the inner wall of the branch pipe 15, so as to prevent water from overflowing between the column 61 and the branch pipe 15 and ensure the accuracy of water consumption in each area.

[0121] To realize the stable butt joint between the spray pipe 26 and the column 61, as shown in Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 The shunt assembly 60 further comprises a connecting piece 62 which is connected with the branch pipe 15 in a penetrating manner;

[0122] The connecting piece 62 is provided with a hole one 623 for accommodating the spray pipe 26 and a hole two 624 for accommodating the column 61, and the connecting piece 62 penetrates the branch pipe 15 through the hole two 624. The number of the hole one 623 is consistent with the number of the spray pipe 26, and one end of the plurality of hole one 623 is communicated and penetrates the hole two 624.

[0123] The column 61 is assembled in the hole two 624 of the connecting piece 62, and the spray pipe 26 is assembled in the hole one 623 of the connecting piece 62. The relative position between the spray pipe 26 and the column 61 is fixed by the connecting piece 62, and the stability is high.

[0124] To ensure the accuracy of the position of the spray pipe 26 and the column 61 when they are butt jointed, as shown in Figure 12 、 Figure 12 、 ​ 、 ​ 、 ​ The lower end of the column 61 extends axially to form a limiting sleeve 612;

[0125] When the spray pipe 26 and the column 61 are butt jointed, the spray pipe 26 is located in the inside of the limiting sleeve 612 and abuts against the plurality of spray pipes 26, so as to ensure the accuracy of the position between the spray pipe 26 and the column 61 when they are butt jointed.

[0126] To further ensure the accuracy of the position of the spray pipe 26 and the column 61 when they are butt jointed, as shown in ​ 、 ​ 、 ​ 、 ​ 、 ​ The limiting sleeve 612 extends radially to form a positioning strip 613, and the spray pipe 26 is provided with a positioning groove 261 which is matched with the positioning strip 613;

[0127] When the spray pipe 26 and the column 61 are butt jointed, the positioning strip 613 is located in the inside of the positioning groove 261.

[0128] For the convenience of the butt joint assembly of the spray pipe 26 and the column 61, as shown in ​ the connecting piece 62 is of split type structure, the connecting piece 62 comprises an upper plate 621 and a lower plate 622, holes one 623 are distributed on the upper plate 621 and the lower plate 622, and holes two 624 are distributed on the upper plate 621.

[0129] In the butt joint assembly of the spray pipe 26 and the column 61, the column 61 is first inserted into the interior of the branch pipe 15, the water inlet of the spray pipe 26 is opposite to the drain hole 611, at this time the positioning strip 613 is located in the interior of the positioning groove 261, the lower plate 622 is placed below the upper plate 621, the position of the lower plate 622 and the upper plate 621 is fixed, the relative position of the spray pipe 26 and the column 61 is fixed, and the assembly is completed.

[0130] In order to ensure the convenience degree in the assembly process, the simplest assembly mode is adopted between the upper plate 621 and the lower plate 622, as shown in ​ the upper plate 621 and the lower plate 622 are assembled through bolts 625.

[0131] The above examples are only used to illustrate the technical solutions of the present application, and not to limit it.

Claims

1. Cooling system for a heat treatment furnace circulating fan, comprising a water tank (10) with internal water storage, a number of fan assemblies (20), a cooling tower (30), characterized in that, A pipe one (11) is arranged between the water inlet end one of the water tank (10) and the water outlet end of the fan assembly (20), a pipe two (12) is arranged between the water outlet end one of the water tank (10) and the water inlet end of the cooling tower (30), a pipe three (13) is arranged between the water outlet end two of the water tank (10) and the water inlet end of the cooling tower (30), a pipe four (14) is arranged between the water inlet end two of the water tank (10) and the water outlet end of the cooling tower (30), and the pipe one (11), the pipe two (12), the pipe three (13) and the pipe four (14) are all provided with pumps; The fan assembly (20) comprises an open-top box body (21) and an upper cover (25) arranged above the box body (21), the inside of the box body (21) is provided with a fan (22) and a wet curtain (24) covering the upper side of the fan (22), a water storage cavity (23) is formed below the inside of the box body (21), the water storage cavity (23) is through the pipe one (11), the upper cover (25) is distributed with a spray pipe (26), the spray pipe (26) is through the branch pipe (15) between the pipe two (12), and the lower end of the spray pipe (26) is provided with a spray hole.

2. The cooling system for a heat treatment furnace circulating fan of claim 1, wherein, The water inlet end one and the water outlet end two are arranged on the upper part of the water tank (10), and the water outlet end one and the water inlet end two are arranged on the lower part of the water tank (10); The size of the water tank (10) is 2200*1200*1500mm, and the water stored in the water tank (10) is soft water.

3. The cooling system for a heat treatment furnace recycle blower of claim 1, wherein, The branch pipe (15) is provided with a water amount adjusting assembly (40) and a flow sensor (50), and the water amount adjusting assembly (40) is located between the pipe two (12) and the flow sensor (50).

4. The cooling system for a heat treatment furnace recycle blower of claim 3, wherein, The branch pipe (15) is provided with a mounting section (151); The water amount adjusting assembly (40) comprises a baffle one (41) and a baffle two (42) arranged in the mounting section (151), and the baffle two (42) reciprocally moves in the horizontal direction relative to the baffle one (41).

5. The cooling system for a heat treatment furnace recycle blower of claim 4, wherein, The baffle one (41) is connected with the inner wall of the mounting section (151), the baffle two (42) is connected with a screw rod (43), the screw rod (43) is threadedly matched with a screw sleeve (44), one end of the screw sleeve (44) penetrates through the side wall of the mounting section (151) and is rotationally matched with the same; The baffle one (41) is provided with a groove one (411) and a block one (412), the baffle two (42) is provided with a groove two (421) and a block two (422), the block one (412) is inserted into the inside of the groove two (421) and is slidingly matched with the same, and the block two (422) is inserted into the inside of the groove one (411) and is slidingly matched with the same; The inner top wall of the mounting section (151) is provided with a sealing ring one, and the sealing ring one abuts against the baffle one (41) and the baffle two (42); One end of the screw sleeve (44) located outside the mounting section (151) is closed, and the screw sleeve (44) and the mounting section (151) are mechanically sealed.

6. The cooling system for a heat treatment furnace recycle blower of claim 1 wherein, The support rod (27) is assembled with the upper cover (25) by screws.

7. The cooling system for a heat treatment furnace recycle blower of claim 1 wherein, The shower pipe (26) is provided with a plurality of shower pipes (26) which are distributed in different areas of the upper cover (25) respectively. The branch pipe (15) and the shower pipe (26) are provided with a shunt assembly (60). The shunt assembly (60) comprises a column (61) arranged in the branch pipe (15), and the column (61) is provided with a plurality of hydrophobic holes (611) corresponding to the shower pipes (26), and the hydrophobic holes (611) are opposite to the water inlets of the shower pipes (26).

8. The cooling system for a heat treatment furnace recycle blower of claim 7, wherein, An annular groove is arranged on the outer wall of the column (61), and a sealing ring two is arranged in the annular groove and abuts against the inner wall of the branch pipe (15).

9. The cooling system for a heat treatment furnace recycle blower of claim 7, wherein, The shunt assembly (60) further comprises a connecting piece (62) which is connected with the branch pipe (15) in a penetrating manner. The connecting piece (62) is provided with a hole one (623) for accommodating the shower pipe (26) and a hole two (624) for accommodating the column (61), the connecting piece (62) penetrates the branch pipe (15) through the hole two (624), the number of the hole one (623) is consistent with the number of the shower pipe (26), and one end of the plurality of hole ones (623) is communicated and penetrates the hole two (624).

10. The cooling system for a heat treatment furnace recycle blower of claim 9, wherein, The lower end of the column (61) extends axially to form a limiting sleeve (612); When the shower pipe (26) is connected with the column (61), the shower pipe (26) is located in the limiting sleeve (612) and abuts against the plurality of shower pipes (26); The limiting sleeve (612) extends radially to form a positioning strip (613), and the shower pipe (26) is provided with a positioning groove (261) matched with the positioning strip (613); When the shower pipe (26) is connected with the column (61), the positioning strip (613) is located in the positioning groove (261); The connecting piece (62) is a split structure, and the connecting piece (62) comprises an upper plate (621) and a lower plate (622), the hole one (623) is arranged on the upper plate (621) and the lower plate (622), and the hole two (624) is arranged on the upper plate (621). The upper plate (621) and the lower plate (622) are assembled by bolts (625).

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