Air supply refrigeration device for drying system

Abstract

The utility model relates to the field of ES fiber production auxiliary equipment, and provides an air supply refrigeration device for a drying system, the air supply refrigeration device comprises an air blowing mechanism, a surface air cooler and an air supply pipeline connected between the air blowing mechanism and the surface air cooler, and a detachable sealing mechanism is mounted between the air supply pipeline and the air blowing mechanism; a bypass pipeline is connected to the outer side of the air supply pipeline and used for being connected with an air compression pipeline for supplying air to workshop equipment, and the bypass pipeline is provided with a valve mechanism used for controlling opening and closing. On the basis, emergency switching can be conveniently carried out when the air blower breaks down, so that normal operation of the drying system and normal production of the whole production line are ensured.

Description

Technical Field

[0001] This application relates to the field of auxiliary equipment for ES fiber production, and particularly to a air supply and refrigeration device for a drying system. Background Art

[0002] During the production process of composite ES fibers, a series of processes such as extrusion molding, spinning, drawing, filament compounding, stretching and curling, and heat setting are required; after the fiber filaments are extrusion molded, after filament compounding, and after filament heat setting, the products need to be dried and cooled by a drying system to control the drawing, crystallization, and orientation of the fiber filaments, which has a great impact on the molecular structure and morphology of the fibers and the mechanical and physical properties of the fibers.

[0003] When the drying system is working, usually a Roots blower at the front end is used to transport air to the surface cooler, and after the air is cooled by the surface cooler, it is then transported to the equipment of each process for drying; however, during normal operation, if the Roots blower malfunctions and needs to be shut down for maintenance, the stop of air intake of the surface cooler will cause the drying system to malfunction, thereby affecting the normal production of the entire production line. Based on this, the workshop usually purchases a new Roots blower as a spare. However, the price of the Roots blower is not low, and it also takes a certain amount of time to replace the spare Roots blower, which will also affect the normal production of the entire production line and needs to be improved. Summary of the Utility Model

[0004] Based on this, this application provides an air supply and refrigeration device for a drying system, which can be conveniently switched emergently when the blower malfunctions to ensure the normal operation of the drying system and the normal production of the entire production line.

[0005] The air supply and refrigeration device for a drying system provided by this application adopts the following technical solutions:

[0006] An air supply and refrigeration device for a drying system includes a blowing mechanism, a surface cooler, and an air supply pipeline connected between the blowing mechanism and the surface cooler. A detachable closing mechanism is installed between the air supply pipeline and the blowing mechanism; a bypass pipeline is connected to the outside of the air supply pipeline, the bypass pipeline is used to be connected to an air compressor pipeline that supplies air to the workshop equipment, and a valve mechanism for controlling opening and closing is installed on the bypass pipeline.

[0007] By adopting the above technical solution, when the air supply and refrigeration device of the present application is operating normally, the valve mechanism is in a closed state. The air blowing mechanism can supply air to the surface cooler, and after the air is cooled inside the surface cooler, it can be transported to the equipment of each process for product drying. When the air blowing mechanism fails, the closing mechanism is installed between the air blowing mechanism and the air supply pipeline to close the air supply pipeline, and then the valve mechanism is adjusted to make the bypass pipeline in an open state. The air compressor pipeline that supplies air to the workshop equipment can send air into the air supply pipeline through the bypass pipeline, so that emergency switching can be conveniently carried out when the air blowing mechanism fails, ensuring the normal operation of the drying system and the normal production of the entire production line.

[0008] Optionally, the air blowing mechanism includes a fan housing and a Roots blower fixedly installed inside the fan housing. An air inlet is provided on one side of the fan housing, and a narrow opening is provided on the other side of the fan housing, and an air outlet is provided in the narrow opening. The closing mechanism is detachably fixed between the narrow opening and the air supply pipeline.

[0009] By adopting the above technical solution, the Roots blower is fixed inside the fan housing, which can play a role in dust prevention, is conducive to keeping the air sent into the air supply pipeline clean, and can reduce the mixing of dust and dirt during product drying, so that the product maintains good molding quality. In addition, the setting of the narrow opening can increase the wind pressure of the Roots blower blowing into the air supply pipeline, which is conducive to the drying system having a good drying effect on each device.

[0010] Optionally, a first flange is fixed on the opening side of the narrow opening, and a second flange is provided at the end of the air supply pipeline. The first flange and the second flange are normally connected by fasteners; the closing mechanism includes a flange blind plate detachably fixed between the first flange and the second flange.

[0011] By adopting the above technical solution, when the Roots blower fails, the fasteners between the first flange and the second flange are removed, and then the flange blind plate is installed between the first flange and the second flange. The flange blind plate can successfully block the air inlet port of the air supply pipeline, so as to facilitate the subsequent operators to open the valve mechanism for emergency switching.

[0012] Optionally, a first flange is fixed on the opening side of the narrow opening, and a second flange is provided at the end of the air supply pipeline. The first flange and the second flange are normally connected by fasteners;

[0013] The closing mechanism includes hinge plates hinged to the first flange / second flange on one side. The number of hinge plates is multiple, and after each hinge plate rotates towards each other, they can maintain a state of mutual abutment; an external thread seat is provided on the side edge of each hinge plate away from its hinge, and a rotating cover is commonly threadedly connected to each external thread seat.

[0014] By adopting the above technical solution, when a fault occurs in the Roots blower, remove the fasteners between the first flange and the second flange, and move the blower mechanism away from the air supply pipeline; then, turn each hinge plate in sequence so that they are in a state of mutual abutment. At this time, each external thread seat can gather at the central position of the air supply pipeline. By threadedly connecting the rotary cover to each external thread seat at the same time, the positions of each hinge plate can be fixed, and thus the air inlet port of the air supply pipeline can be successfully blocked, which has the advantages of convenient and labor-saving operation.

[0015] Optionally, the rotary cover is connected to one of the hinge plates by a connecting rope.

[0016] By adopting the above technical solution, the setting of the connecting rope can make the rotary cover always connected to one of the hinge plates, so that there is no need to spend time looking for the rotary cover when an emergency switch needs to be made, which is conducive to saving the operation time of the emergency switch and ensuring the normal production of the entire production line; at the same time, the setting of the connecting rope can also reduce the possibility of accidental loss of the rotary cover.

[0017] Optionally, the blower mechanism further includes a bottom bracket for fixing the blower housing. The bottom bracket is fixedly arranged, a slide rail is installed at the top of the bottom bracket, and a slide seat for mating connection with the slide rail is installed at the bottom of the blower housing.

[0018] By adopting the above technical solution, through the sliding fit between the slide rail and the slide seat, during the emergency switch operation, after removing the fasteners of the first flange and the second flange, it is convenient to force the blower housing to move away from the air supply pipeline, so that the operator can turn the hinge plate to the inside of the air supply pipeline, further improving the convenience of the emergency switch operation and saving the operation time of the emergency switch.

[0019] Optionally, the bypass pipeline is partially provided with mounting flanges. The valve mechanism includes a valve cover detachably fixed to the mounting flange, a plugging member movably arranged inside the valve cover, and a rotary handle for driving the plugging member to move. The rotary handle is used to force the plugging member into the bypass pipeline, and a pressure gauge for displaying the internal gas pressure is installed on the bypass pipeline.

[0020] By adopting the above technical solution, by rotating the rotary handle, the plugging member can be forced to move towards / away from the bypass pipeline. Thus, when an emergency switch needs to be made, the bypass pipeline can be manually opened, so that the air flow in the air pressure pipeline can smoothly enter the air supply pipeline through the bypass pipeline; in addition, the setting of the pressure gauge can enable the operator to visually observe the air flow pressure passing through the bypass pipeline to determine the overall air pressure of the drying system.

[0021] Optionally, an air filter for filtering air impurities is installed on the bypass pipeline.

[0022] By adopting the above technical solution, when the valve mechanism is in the open state, the pneumatic pipeline sends air into the bypass pipeline, and the air flow can be preliminarily filtered through the air filter, which is beneficial to keeping the air sent into the air supply pipeline clean. Furthermore, when drying the product, the mixing of dust and dirt can be reduced, and the product can maintain good molding quality.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When a failure occurs in the air blowing mechanism, the closing mechanism is installed between the air blowing mechanism and the air supply pipeline, and then the valve mechanism is adjusted to make the bypass pipeline in the open state. The pneumatic pipeline for supplying air to the workshop equipment can send air into the air supply pipeline through the bypass pipeline, so that emergency switching can be conveniently carried out to ensure the normal operation of the drying system and the normal production of the entire production line;

[0025] 2. By setting the rotating handle, rotating the rotating handle can force the plugging member to move towards / away from the bypass pipeline. Furthermore, when emergency switching is required, the bypass pipeline can be manually opened, and the air flow pressure passing through the bypass pipeline can be visually observed through the pressure gauge to determine the overall air pressure of the drying system;

[0026] 3. The setting of the air filter can preliminarily filter the air flow sent from the pneumatic pipeline into the bypass pipeline, which is beneficial to keeping the air sent into the air supply pipeline clean. Furthermore, when drying the product, the mixing of dust and dirt can be reduced, and the product can maintain good molding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the overall structural schematic diagram of Embodiment 1;

[0028] Figure 2 is Figure 1 the enlarged view of A in

[0029] Figure 3 is the partial cross-sectional view of the valve cover in Embodiment 1, mainly showing the structure of the valve mechanism;

[0030] Figure 4 is the structural schematic diagram of the closing mechanism in Embodiment 2;

[0031] Figure 5 is the partial structural schematic diagram of the connection position between the first flange and the second flange in Embodiment 2.

[0032] Description of the reference numerals: 1. Blowing mechanism; 11. Blower housing; 111. Narrow opening; 112. First flange; 113. Air inlet; 114. Slide; 12. Roots blower; 13. Bottom bracket; 131. Slide rail; 2. Surface cooler; 3. Air supply duct; 31. Second flange; 32. Fastener; 4. Bypass duct; 41. Mounting flange; 42. Pressure gauge; 43. Air filter; 5. Pneumatic pressure duct; 6. Valve mechanism; 61. Valve housing; 611. Connecting flange; 62. Plugging member; 63. Rotating handle; 631. Grip; 7. Sealing mechanism; 71. Flange blind plate; 711. Perforation; 72. Hinged plate; 721. Hinge; 73. External thread seat; 74. Rotating cover; 75. Connecting rope. Detailed implementation mode

[0033] The following is a further detailed description of the present application in conjunction with the attached Figures 1-5 drawings.

[0034] Embodiment 1:

[0035] The embodiment of the present application discloses a air supply and refrigeration device for a drying system.

[0036] Referring to Figure 1 , an air supply and refrigeration device for a drying system includes a blowing mechanism 1, a surface cooler 2, and an air supply duct 3 connected between the blowing mechanism 1 and the surface cooler 2. Among them, the blowing mechanism 1 includes a bottom bracket 13, a blower housing 11, and a Roots blower 12. The bottom bracket 13 is fixedly placed on the ground foundation. The blower housing 11 is fixed on the top of the bottom bracket 13. An air inlet 113 is provided on one side surface of the blower housing 11. A narrow opening 111 is provided on the other side of the blower housing 11, and an air outlet for connecting with the air supply duct 3 is provided in the narrow opening 111.

[0037] The Roots blower 12 is fixed inside the blower housing 11 by bolts. The air inlet channel of the Roots blower 12 is directly connected to the air inlet 113 of the blower housing 11, and the air outlet channel of the Roots blower 12 is directly connected to the air outlet of the narrow opening 111. When the drying system is performing normal drying operations, by controlling the operation of the Roots blower 12, air flow can be transported into the air supply duct 3, and finally the air flow can enter the surface cooler 2 for cooling, so as to be supplied to the drying system to dry the equipment of each process.

[0038] A bypass duct 4 is connected to the outside of the air supply duct 3. The bypass duct 4 is used to connect to the air compressor duct 5 that supplies air to the workshop equipment. By using the existing air compressor duct 5 to replace the need to purchase a standby Roots blower 12, it can achieve the effect of cost savings. A valve mechanism 6 is installed on the bypass duct 4. Through the valve mechanism 6, the opening and closing of the bypass duct 4 can be controlled. Moreover, a detachable sealing mechanism 7 is installed between the air supply duct 3 and the narrow opening 111. When the Roots blower 12 fails, by installing the sealing mechanism 7 between the narrow opening 111 and the air supply duct 3, the sealing mechanism 7 can block the air inlet port of the air supply duct 3. Then, control the valve mechanism 6 to open the bypass duct 4, and emergency switching can be carried out, enabling the drying system to maintain normal operation and ensuring the normal production of the entire production line.

[0039] Specifically refer to Figure 2 , a first flange 112 is welded and fixed to the opening side of the narrow opening 111, and a second flange 31 is welded and fixed to the end of the air supply duct 3. A plurality of fasteners 32 are commonly passed through the first flange 112 and the second flange 31. Through the fasteners 32, the first flange 112 and the second flange 31 can be kept fixedly connected. It can be understood that the fasteners 32 mentioned here can be countersunk bolts, wing bolts, etc.

[0040] In this embodiment, the sealing mechanism 7 is set as a flange blind plate 71. The outer diameter of the flange blind plate 71 is larger than the inner diameter of the first flange 112 / the second flange 31, and the flange blind plate 71 is provided with through holes 711 for the fasteners 32 to pass through. When a failure occurs, remove the fasteners 32 between the first flange 112 and the second flange 31, clamp the flange blind plate 71 between the first flange 112 and the second flange 31, and then reuse the fasteners 32 to connect the first flange 112 and the second flange 31. At the same time, each fastener 32 respectively passes through each through hole 711, enabling the flange blind plate 71 to be stably installed between the first flange 112 and the second flange 31, playing a role in blocking the air inlet port of the air supply duct 3.

[0041] In addition, refer to Figure 3 , a mounting flange 41 is provided at a partial position of the bypass duct 4. The inner side of the mounting flange 41 can communicate with the inside of the bypass duct 4. The valve mechanism 6 includes a valve cover 61, a plugging member 62, and a rotating handle 63. A connecting flange 611 is provided at the open end of the valve cover 61. The connecting flange 611 and the mounting flange 41 are connected by bolts, so that the valve cover 61 can be detachably fixed to the mounting flange 41.

[0042] The rotary handle 63 is inserted through the valve cover 61 and is threadedly connected to the valve cover 61; a grip 631 is installed at the exposed end of the rotary handle 63, and the rotary handle 63 can be conveniently rotated through the grip 631; the plugging member 62 is located inside the valve cover 61 and is fixed to the rotary handle 63. In this embodiment, the plugging member 62 is made of materials such as rubber and silica gel, and the outer diameter of the plugging member 62 is set to be equal to the inner diameter of the valve cover 61. In the normal state, the plugging member 62 abuts against the inner wall of the bypass pipe 4, and the bypass pipe 4 can be in a closed state; when emergency switching is required, by holding the grip 631 to rotate the rotary handle 63, the rotary handle 63 can drive the plugging member 62 to move away from the inner wall of the bypass pipe 4, and then the bypass pipe 4 is gradually opened.

[0043] A pressure gauge 42 is installed on the side of the bypass pipe 4. The pressure gauge 42 is located directly below the mounting flange 41 and can be used to measure the air flow pressure passing through the inside of the bypass pipe 4, so as to determine the overall air pressure of the drying system during emergency switching, and the valve mechanism 6 can be used to adjust the air pressure to the required range. At the same time, referring to Figure 1 , an air filter 43 is also installed on the bypass pipe 4. The air filter 43 is located at the front end of the valve mechanism 6 along the air flow conveying direction and is used to filter the gas inside the bypass pipe 4, which is beneficial to keeping the air sent into the air supply pipe 3 clean.

[0044] The implementation principle of Embodiment 1 of this application is as follows:

[0045] When a fault occurs in the Roots blower 12 in the air blowing mechanism 1, by removing the fastener 32 between the first flange 112 and the second flange 31, clamping the flange blind plate 71 between the first flange 112 and the second flange 31, and then using the fastener 32 to reconnect the first flange 112, the flange blind plate 71 and the second flange 31, the air supply pipe 3 can be in a closed state; then rotate the rotary handle 63 to force the plugging member 62 to move away from the inner wall of the bypass pipe 4, and the bypass pipe 4 is gradually in an open state. The gas inside the air pressure pipe 5 can be sent into the air supply pipe 3 through the bypass pipe 4, so that emergency switching can be conveniently carried out when the Roots blower 12 fails, ensuring the normal operation of the drying system and the normal production of the entire production line.

[0046] Embodiment 2:

[0047] This application embodiment discloses an air supply and refrigeration device for a drying system.

[0048] Referring to Figure 4, a air supply and refrigeration device for a drying system disclosed in an embodiment of the present application, the other components are the same as those in Embodiment 1 and will not be described in detail here; the difference from Embodiment 1 is that the closing mechanism 7 of this embodiment includes a plurality of hinge plates 72, and each hinge plate 72 is simultaneously hinged to the first flange 112 or simultaneously hinged to the second flange 31. Specifically, the number of hinge plates 72 is set to eight, and each hinge plate 72 is hinged to the side of the first flange 112 close to the second flange 31 through a hinge 721, and the hinge 721 is located at the side edge of the hinge plate 72; when each hinge plate 72 rotates towards each other, each hinge plate 72 can maintain a state of being in contact with each other.

[0049] Refer to simultaneously Figure 5 , an external thread seat 73 is fixed to the side edge of each hinge plate 72 away from the hinge 721, and a thread portion is provided on the outer peripheral surface of each external thread seat 73. When each hinge plate 72 rotates towards each other, each external thread seat 73 can jointly enclose to form an annular connection seat. A connection rope 75 is fixed to one of the hinge plates 72, and the end of the connection rope 75 away from the hinge plate 72 is connected to a rotating cover 74, and the internal thread of the rotating cover 74 is adapted to the external thread of the connection seat; by threadedly connecting the rotating cover 74 to the outer peripheral side of each external thread seat 73, the positions of each hinge plate 72 can be kept fixed, and thus the air inlet port of the air supply duct 3 can be smoothly blocked.

[0050] In addition, return to Figure 4 , in this embodiment, a slide rail 131 is installed on the top surface of the bottom bracket 13, and the extending direction of the slide rail 131 is the same as the extending direction of the air supply duct 3; a sliding seat 114 is fixed to the bottom of the fan housing 11. By sliding the sliding seat 114 on the slide rail 131, after the fastener 32 is removed, it is convenient to force the first flange 112 to move away from the second flange 31, so that the operator can turn the hinge plate 72 to the inner side of the air supply duct 3, further improving the convenience of the emergency switching operation and saving the operation time of the emergency switching.

[0051] The implementation principle of Embodiment 2 of the present application is as follows:

[0052] When the roots blower 12 fails, the fastener 32 between the first flange 112 and the second flange 31 is removed, and the fan housing 11 is moved away from the air supply duct 3; then each hinge plate 72 is turned in sequence to be in a state of being in contact with each other. At this time, each external thread seat 73 can gather and enclose to form a connection seat. Threadedly connecting the rotating cover 74 to the outer peripheral side of each external thread seat 73 can keep the positions of each hinge plate 72 fixed, and thus the air inlet port of the air supply duct 3 can also be smoothly blocked. The whole operation can be quickly and conveniently completed by a single operator, and has the advantages of convenient operation and labor saving.

[0053] The above are the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An air supply and refrigeration device for a drying system, characterized in that: It includes a blast mechanism (1), a surface cooler (2), and a air supply duct (3) connected between the blast mechanism (1) and the surface cooler (2). A detachable closing mechanism (7) is installed between the air supply duct (3) and the blast mechanism (1); a bypass duct (4) is connected to the outside of the air supply duct (3), and the bypass duct (4) is used to connect to a pneumatic pressure duct (5) that supplies air to workshop equipment, and a valve mechanism (6) for controlling opening and closing is installed on the bypass duct (4).

2. The air supply and refrigeration device according to claim 1, characterized in that: The blast mechanism (1) includes a fan housing (11) and a Roots blower (12) fixedly installed inside the fan housing (11). An air inlet (113) is provided on one side of the fan housing (11), and a narrow opening (111) is provided on the other side of the fan housing (11), and an air outlet is provided in the narrow opening (111). The closing mechanism (7) is detachably fixed between the narrow opening (111) and the air supply duct (3).

3. The air supply and refrigeration device according to claim 2, wherein: A first flange (112) is fixed to the opening side of the narrow opening (111), and a second flange (31) is provided at the end of the air supply duct (3). The first flange (112) and the second flange (31) are normally connected by fasteners (32); the closing mechanism (7) includes a flange blind plate (71) detachably fixed between the first flange (112) and the second flange (31).

4. The air supply and refrigeration device according to claim 2, characterized in that: A first flange (112) is fixed to the opening side of the narrow opening (111), and a second flange (31) is provided at the end of the air supply duct (3). The first flange (112) and the second flange (31) are normally connected by fasteners (32); The closing mechanism (7) includes hinge plates (72) hinged to the first flange (112) / second flange (31) on one side. The number of the hinge plates (72) is multiple, and after the hinge plates (72) rotate towards each other, they can maintain a state of mutual abutment; an external thread seat (73) is provided on the side edge of each hinge plate (72) away from its hinge, and a rotary cover (74) is commonly threadedly connected to the external thread seats (73).

5. The air supply and refrigeration device according to claim 4, characterized in that: The rotary cover (74) is connected to one of the hinge plates (72) by a connecting rope (75).

6. The air supply and refrigeration device according to claim 5, wherein: The blast mechanism (1) further includes a bottom bracket (13) for fixing the fan housing (11). The bottom bracket (13) is fixedly arranged, a slide rail (131) is installed on the top of the bottom bracket (13), and a slide seat (114) for cooperating with the slide rail (131) is installed at the bottom of the fan housing (11).

7. The air supply and refrigeration device according to claim 1, characterized in that: The bypass duct (4) is partially provided with mounting flanges (41). The valve mechanism (6) includes a valve cover (61) detachably fixed to the mounting flange (41), a plugging member (62) movably arranged inside the valve cover (61), and a rotary handle (63) for driving the plugging member (62) to move. The rotary handle (63) is used to force the plugging member (62) into the bypass duct (4), and a pressure gauge (42) for displaying the internal gas pressure is installed on the bypass duct (4).

8. The air supply and refrigeration device according to claim 1, characterized in that: The bypass duct (4) is installed with an air filter (43) for filtering air impurities.

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