Nitrogen generator for resin production

Abstract

The utility model relates to resin production field discloses a nitrogen -generating machine for resin production, including adsorption tower no.

Description

Technical Field

[0001] This utility model relates to the field of resin production, and then discloses a nitrogen generator for resin production. Background Technology

[0002] Resins are a class of organic polymers with uncertain but generally high relative molecular weights. They are solid, medium-solid, or pseudo-solid at room temperature, and sometimes liquid. Resin production refers to the industrial process of preparing various resin products through chemical synthesis or processing of natural raw materials. The production processes for different types of resins vary greatly. In the resin production process, many reactions are sensitive to oxygen. Nitrogen generated by a nitrogen generator can fill reaction vessels, storage tanks, and other equipment to expel the air and form an inert protective atmosphere. This prevents the resin raw materials, intermediate products, and finished products from being oxidized, ensuring that the reaction proceeds in the expected direction and improving the quality and stability of the resin products.

[0003] By utilizing the difference in adsorption capacity of carbon molecular sieves for oxygen and nitrogen, nitrogen is produced through a cycle of pressure adsorption and depressurization desorption. Pretreated compressed air enters the adsorption tower. Under pressure, the carbon molecular sieves preferentially adsorb oxygen, while nitrogen is discharged from the top of the tower as a product gas for use in resin production.

[0004] When the device is in use, temperature changes will affect the adsorption performance of the carbon molecular sieve in the adsorption tower. In high-temperature environments, the temperature inside the adsorption tower will rise. When the temperature rises, the adsorption capacity of the carbon molecular sieve for impurities such as oxygen will decrease, resulting in a weakening of the carbon molecular sieve's ability to adsorb oxygen. This leads to a decrease in the purity of the produced nitrogen, which cannot meet the nitrogen purity requirements for resin production. When the ambient temperature is too low, the activity of the carbon molecular sieve will decrease, the activity of the internal adsorption sites will weaken, and the adsorption capacity for impurities such as oxygen will deteriorate, which will also lead to a decrease in nitrogen purity and a reduction in nitrogen production efficiency. Summary of the Invention

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a nitrogen generator for resin production. By setting a temperature regulation device, the temperature inside the adsorption tower is maintained at the optimal state, which can keep the carbon molecular sieve at a high adsorption capacity and avoid the reduction of oxygen adsorption by the carbon molecular sieve due to excessive temperature, thereby ensuring the high purity of the produced nitrogen and meeting the nitrogen quality requirements of resin production.

[0006] The objective of this utility model is achieved through the following technical solution: A nitrogen generator for resin production includes an adsorption tower 1, an adsorption tower 2, and a transport pipeline 1. Heating wires are fixedly connected inside the adsorption towers 1 and 2. Carbon molecular sieves are installed inside the adsorption towers 1 and 2. A protective shell is fixedly connected to the outside of the adsorption towers 1 and 2. A cooling pipeline is fixedly connected inside the protective shell around the outside of the adsorption towers 1 and 2. One end of the cooling pipeline passes through the protective shell and is fixedly connected to the transport pipeline 1. A water pump is fixedly connected to one side of the transport pipeline 1. A transport pipeline 2 is fixedly connected to one side of the water pump. A coolant tank is fixedly connected to the other side of the transport pipeline 2. The other end of the cooling pipeline passes through the protective shell and is fixedly connected to the transport pipeline 3. One side of the transport pipeline 3 is fixedly connected to the coolant tank.

[0007] In one optional embodiment, a porous plate is fixedly connected inside the adsorption tower one and adsorption tower two at a position below the carbon molecular sieve, and a filter plate is fixedly connected below the porous plate.

[0008] In one optional embodiment, a pressure equalization pipe is fixedly connected to one side of the adsorption tower one, and one side of the pressure equalization pipe is fixedly connected to the adsorption tower two. A pressure equalization valve is fixedly connected above the pressure equalization pipe.

[0009] In one optional embodiment, an exhaust pipe is fixedly connected to the outside of adsorption tower one and adsorption tower two, and an exhaust valve is fixedly connected above the exhaust pipe.

[0010] In one optional embodiment, an air inlet pipe is fixedly connected to the bottom of adsorption tower one and adsorption tower two, and an air inlet valve is fixedly connected to the top of the air inlet pipe.

[0011] In one optional embodiment, a filter box is fixedly connected to one side of the air intake pipe, a connecting pipe is fixedly connected to one side of the filter box, and a blower is fixedly connected to one side of the connecting pipe.

[0012] In one optional embodiment, a fixing block is fixedly connected inside the filter box, a sliding frame is slidably connected inside the fixing block, a filter screen is fixedly connected inside the sliding frame, a handle is fixedly connected above the sliding frame, a sliding rod is slidably connected inside the fixing block, a pull plate is fixedly connected to the outside of the sliding rod, a locking block is fixedly connected to the other side of the sliding rod, a spring is fixedly connected to one side of the locking block, and one side of the spring is fixedly connected to one side of the fixing block.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The entire device is controlled by an external controller. When the ambient temperature is low, the controller activates the electric heating wire to raise the temperature inside adsorption tower one and adsorption tower two. When the temperature inside adsorption tower one and adsorption tower two is too high, the controller activates the water pump to draw coolant from the coolant tank through transport pipe two and transport it through transport pipe one to the cooling pipe. The coolant flows around and absorbs heat to cool it down. Then, the coolant with heat flows back to the coolant tank through transport pipe three. By maintaining the temperature inside adsorption tower one and adsorption tower two, the activity of the carbon molecular sieve is ensured, allowing it to perform its adsorption function normally and avoiding the decline in the adsorption performance of the carbon molecular sieve due to low temperature, which would affect the purity and efficiency of nitrogen production. Pulling the pull plate outward causes the sliding rod to move outward, which in turn moves the locking block outward, compressing the spring and separating the locking block from the sliding frame. Pulling the handle upward causes the sliding frame to slide upward, allowing the filter screen to be removed for easy cleaning and preventing clogging. Attached Figure Description

[0014] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model; Figure 2 The diagram shown is a three-dimensional structural schematic of this utility model; Figure 3 The diagram shown is a partial three-dimensional structural schematic of this utility model; Figure 4 The diagram shown is a partial cross-sectional three-dimensional structural schematic of this utility model; Figure 5 The diagram shown is a partial three-dimensional structural schematic of this utility model; Figure 6 The diagram shown is a partial cross-sectional three-dimensional structural schematic of this utility model; In the diagram: 101, Adsorption Tower 1; 102, Adsorption Tower 2; 103, Transport Pipeline 1; 104, Heating Wire; 105, Carbon Molecular Sieve; 106, Protective Shell; 107, Cooling Pipeline; 108, Water Pump; 109, Transport Pipeline 2; 110, Coolant Tank; 111, Transport Pipeline 3; 201, Perforated Plate; 202, Filter Plate; 203, Pressure Equalizing Pipe; 204, Pressure Equalizing Valve; 205, Exhaust Pipe; 206, Exhaust Valve; 301, Inlet Pipe; 302, Inlet Valve; 303, Filter Box; 304, Connecting Pipeline; 305, Air Compressor; 401, Fixing Block; 402, Sliding Frame; 403, Filter Screen; 404, Handle; 405, Sliding Rod; 406, Pull Plate; 407, Locking Block; 408, Spring. Detailed Implementation

[0015] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are all commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0016] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0017] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0018] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0019] Please refer to Figures 1-6A nitrogen generator for resin production includes an adsorption tower 101, an adsorption tower 2 102, and a transport pipe 103. Heating wires 104 are fixedly connected inside the adsorption towers 101 and 102. Carbon molecular sieves 105 are installed inside the adsorption towers 101 and 102. A protective shell 106 is fixedly connected to the outside of the adsorption towers 101 and 102. Cooling pipes 107 are fixedly connected inside the protective shell 106, surrounding the outside of the adsorption towers 101 and 102. One end of the cooling pipe 107 passes through the protective shell 106 and is fixedly connected to the first transport pipe 103. A water pump 108 is fixedly connected to one side of the first transport pipe 103, and a second transport pipe 109 is fixedly connected to one side of the water pump 108. A coolant tank 110 is fixedly connected to the other side of the second transport pipe 109. The other end of the cooling pipe 107 passes through the protective shell 106 and is fixedly connected to the third transport pipe 111. One side of the third transport pipe 111 is fixedly connected to the coolant tank 110. The entire device is controlled by an external controller. Adsorption tower 101 and adsorption tower 107... The adsorption tower 102 is internally filled with carbon molecular sieve 105. Under certain pressure, the adsorption capacity of carbon molecular sieve 105 for oxygen is much stronger than that for nitrogen. Pretreated compressed air enters the adsorption tower, where oxygen is adsorbed by carbon molecular sieve 105, while nitrogen is discharged as the product gas. When the ambient temperature is low, the controller activates the electric heating wire to raise the temperature inside adsorption tower 101 and adsorption tower 102. When the temperature inside adsorption tower 101 and adsorption tower 102 becomes too high, the controller activates the water pump 108 to pump water from the coolant tank 1. The coolant in 10 is drawn out through transport pipe 2 109 and transported through transport pipe 1 103 to cooling pipe 107. The coolant flows around and absorbs heat to cool it down. Then, the coolant with heat flows back to coolant tank 110 through transport pipe 3 111. By maintaining the temperature inside adsorption tower 101 and adsorption tower 2 102, the activity of carbon molecular sieve 105 is guaranteed, so that it can perform its adsorption function normally and avoid the adsorption performance of carbon molecular sieve 105 from decreasing due to low temperature, which would affect the purity and efficiency of nitrogen production.

[0020] In a preferred embodiment of this invention, a porous plate 201 is fixedly connected inside the adsorption tower 101 and the adsorption tower 202 below the carbon molecular sieve 105. A filter plate 202 is fixedly connected below the porous plate 201. The air entering the adsorption tower 101 and the adsorption tower 202 is filtered by the filter plate 202 to intercept impurity particles in the air. The porous plate 201 disperses the air, allowing the airflow to pass evenly upward through the carbon molecular sieve 105 layer. This allows the carbon molecular sieve 105 to adsorb impurities such as oxygen and carbon dioxide in the compressed air more efficiently and evenly, thereby improving the adsorption efficiency and nitrogen separation effect.

[0021] In a preferred embodiment of this utility model, a pressure equalization pipe 203 is fixedly connected to one side of adsorption tower 101, and one side of the pressure equalization pipe 203 is fixedly connected to adsorption tower 202. A pressure equalization valve 204 is fixedly connected above the pressure equalization pipe 203. After adsorption tower 101 finishes adsorption and adsorption tower 202 finishes desorption, the control system opens the pressure equalization valve 204, so that adsorption tower 101 and adsorption tower 202 are connected through the pressure equalization pipe 203. At this time, the high-pressure nitrogen in adsorption tower 101 will flow to the low-pressure adsorption tower 202 through the pressure equalization pipe 203 until the pressure of the two towers is close to equilibrium.

[0022] In a preferred embodiment of this utility model, an exhaust pipe 205 is fixedly connected to the outside of adsorption tower 101 and adsorption tower 202, and an exhaust valve 206 is fixedly connected above the exhaust pipe 205. When the exhaust valve 206 of adsorption tower 101 is opened, the exhaust valve 206 of adsorption tower 202 is closed, and the nitrogen gas after passing through the carbon molecular sieve 105 is discharged from the exhaust pipe 205 corresponding to adsorption tower 101 for use in resin production. When the exhaust valve 206 of adsorption tower 202 is opened, the exhaust valve 206 of adsorption tower 101 is closed, and the nitrogen gas after passing through the carbon molecular sieve 105 is discharged from the exhaust pipe 205 corresponding to adsorption tower 202.

[0023] In a preferred embodiment of this utility model, an air inlet pipe 301 is fixedly connected to the bottom of adsorption tower 101 and adsorption tower 2 102, and an air inlet valve 302 is fixedly connected to the top of the air inlet pipe 301. When adsorption tower 101 is in adsorption state, the air inlet valve 302 connected to adsorption tower 101 is opened and the air inlet valve 302 of adsorption tower 2 102 is closed. When adsorption tower 2 102 is in adsorption state, the opposite is true.

[0024] In a preferred embodiment of this utility model, a filter box 303 is fixedly connected to one side of the air intake pipe 301, a connecting pipe 304 is fixedly connected to one side of the filter box 303, and a blower 305 is fixedly connected to one side of the connecting pipe 304. By starting the blower 305, air is drawn in and compressed. The compressed air is filtered through the filter box 303 and then enters the air intake pipe 301.

[0025] In a preferred embodiment of this utility model, a fixing block 401 is fixedly connected inside the filter box 303, a sliding frame 402 is slidably connected inside the fixing block 401, a filter screen 403 is fixedly connected inside the sliding frame 402, a handle 404 is fixedly connected above the sliding frame 402, a sliding rod 405 is slidably connected inside the fixing block 401, a pull plate 406 is fixedly connected to the outer side of the sliding rod 405, a locking block 407 is fixedly connected to the other side of the sliding rod 405, and a spring 40 is fixedly connected to one side of the locking block 407. 8. One side of the spring 408 is fixedly connected to one side of the fixed block 401. By pulling the pull plate 406 outward, the sliding rod 405 moves outward. The outward movement of the sliding rod 405 causes the locking block 407 to move outward, which compresses the spring 408 and separates the locking block 407 from the sliding frame 402. By pulling the handle 404 upward, the sliding frame 402 slides upward, so that the filter screen 403 can be taken out, which is convenient for cleaning the filter screen 403 in the filter box 303 and preventing the filter screen 403 from becoming clogged.

[0026] Other embodiments: In the two sets of filter screens 403 inside the filter box 303, the filter screen 403 that is closer to the connecting pipe 304 is the coarse filter screen 403, which mainly removes large particulate impurities in the air, and the filter screen 403 that is closer to the air inlet pipe 301 is the fine filter screen 403, which mainly removes small particulate impurities in the air and further purifies the compressed air.

[0027] During operation, the air compressor 305 is started by the controller. The air compressor 305 draws in air and compresses it. The compressed air enters the filter box 303 through the connecting pipe 304 for filtration. Pulling the pull plate 406 outward moves the sliding rod 405 outward, which in turn moves the locking block 407 outward, compressing the spring 408 and separating the locking block 407 from the sliding frame 402. Pulling the handle 404 upward slides the sliding frame 402, allowing the filter screen 403 to be removed for cleaning and to prevent clogging. When the adsorption tower 101 is in adsorption mode, the air inlet valve 302 of the adsorption tower 101 is opened, allowing compressed air to enter the adsorption tower 101 through the air inlet pipe 301. After passing through the filter plate 202 and the porous plate 201, the compressed air passes upward through the carbon molecular sieve 105. Oxygen and carbon dioxide are preferentially adsorbed, and the inlet valve 302 of adsorption tower 2 102 is closed at this time. Conversely, when the ambient temperature is low, the controller starts the electric heating wire to heat and raise the internal temperature of adsorption tower 1 101 and adsorption tower 2 102. When the internal temperature of adsorption tower 1 101 and adsorption tower 2 102 is too high, the controller starts the water pump 108 to work, and draws the coolant in the coolant tank 110 out through transport pipe 2 109 and transports it through transport pipe 1 103 to the cooling pipe 107. The coolant flows around and absorbs heat to cool it down. Then the coolant with heat flows back to the coolant tank 110 through transport pipe 3 111. By maintaining the internal temperature of adsorption tower 1 101 and adsorption tower 2 102, the activity of carbon molecular sieve 105 is guaranteed, so that it can play a normal adsorption role and avoid the adsorption performance of carbon molecular sieve 105 from decreasing due to low temperature, which would affect the purity and efficiency of nitrogen production.

[0028] Although only certain components and embodiments of this application have been illustrated and described, many modifications and alterations (e.g., variations in the size, dimensions, structure, shape and proportion of the various elements, installation arrangement, material use, color, orientation, etc.) will be conceived by those skilled in the art without actually departing from the scope and spirit of the claims.

[0029] Finally, it should be noted that the above embodiments are only preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

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