Automatic switching control device of nitrogen making machine under different production loads

Abstract

The utility model relates to the technical field of nitrogen making machines, and discloses an automatic switching control device of a nitrogen making machine under different production loads, which comprises a pipe frame, a controller module is arranged in the middle of one side of the pipe frame, one end of the pipe frame is connected with a leakage-proof flange group, the controller module comprises an annular frame, one side of the annular frame is connected with a box body, and the box body is connected with a valve. A storage battery is arranged in the box body, and a display screen is arranged on the outer coin side of the box body. According to the utility model, the connected processor module can be manually regulated and controlled through the operation panel, the electromagnetic valves corresponding to each group of auxiliary pipes are opened, the gas conveying and distributing pressure of the main pipe body is relieved, the processor module can be used for monitoring and processing, and when the pressure is close to a certain threshold value, the correspondingly connected electromagnetic valves are regulated and controlled to be opened; the process of transmission and distribution of a single-pipe main pipe body or synchronous transmission and distribution of multiple groups of auxiliary pipes is formed, the transmission and distribution pressure is relieved, the gas leakage or overpressure phenomenon is reduced, the gas transmission and distribution process in the whole nitrogen generation process is stable, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen generators, in particular to an automatic switching control device for nitrogen generators under different production loads. Background Technique

[0002] A nitrogen generator refers to a device that uses air as a raw material and separates oxygen and nitrogen therein by physical methods to obtain nitrogen. Industrial nitrogen generators can be divided into three types according to different classification methods, namely cryogenic air separation method, molecular sieve air separation method (PSA), and membrane air separation method. The nitrogen generator is a nitrogen production device designed and manufactured according to the pressure swing adsorption technology. The nitrogen generator uses high-quality imported carbon molecular sieve (CMS) as an adsorbent and adopts the principle of pressure swing adsorption (PSA) at room temperature to separate air to produce high-purity nitrogen. Usually, two adsorption towers are connected in parallel and automatically operated by an imported PLC to control imported pneumatic valves, alternately performing pressurized adsorption and decompression regeneration to complete nitrogen-oxygen separation and obtain the required high-purity nitrogen.

[0003] In the prior art, the mixed gas compressed by the air compressor needs to enter the compression pipeline along with particulate matter, water, and oil. Immediately afterwards, it is subjected to partial particle and liquid water filtration treatment through the first-stage pipeline filter installed in the pipeline. Subsequently, the wet air with water vapor will enter the refrigerated dryer for vapor-liquid separation. At this time, the compressed air is in a dry state. Then it continues to be transported through the pipeline to three different grades of filters for filtration treatment. At this time, the filtered air enters the buffer tank, and then enters two adsorption towers with molecular sieves connected to the buffer tank for adsorption treatment. Nitrogen is obtained through cyclic treatment and stored in a nitrogen tank.

[0004] The above prior art has obvious beneficial effects, but there are still deficiencies:

[0005] In the above prior art, when the filtered air enters the buffer tank for temporary storage, the pressure will be reduced due to buffering. During the process of transporting the filtered air through the compression pipeline to the buffer tank, the pressure of the single-pipe compression pipeline is relatively high, and there is an easy overpressure air leakage phenomenon at the connection, which affects the normal buffering function of the buffer tank and poses a safety hazard. For this reason, an automatic switching control device for nitrogen generators under different production loads is proposed. Content of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides an automatic switching control device for nitrogen generators under different production loads, which realizes multi-channel regulation through multiple groups of auxiliary pipes and corresponding connecting and controlling solenoid valves, and can perform single-channel or multi-channel automatic adjustment corresponding to different production loads to keep the transmission and distribution pressure stable.

[0007] To achieve the above object, the present utility model provides the following technical solutions: An automatic switching control device for a nitrogen generator under different production loads, including a pipe rack, a controller module is arranged in the middle of one side of the pipe rack, and a leak-proof flange group is connected to one end of the pipe rack. The pipe rack includes a main pipe body, and a flange plate is connected to one end of the main pipe body. A solenoid valve is connected to the other end of the main pipe body, and auxiliary pipes are connected to both sides of the main pipe body. The auxiliary pipes are symmetrically distributed along both sides of the main pipe body, and each group of auxiliary pipes is connected to a corresponding solenoid valve. The controller module includes a ring frame, and a box body is connected to one side of the ring frame. A storage battery is arranged inside the box body, and a display screen is arranged on the outer side of the box body. An operation panel is arranged at the bottom of the display screen, and a pressure sensor is connected to the other side of the ring frame.

[0008] Preferably, the ring frame is fixedly connected to the pressure sensor and the box body, and the ring frame is arranged in the middle of the pipe rack and fixed.

[0009] Preferably, the display screen and the operation panel are electrically connected, and the display screen, the operation panel, and the storage battery are fixedly connected to the box body.

[0010] Preferably, the leak-proof flange group includes a flange ring, and a ring groove is opened in the center of the flange ring. A rubber ring is attached to the inner walls around the ring groove, and bolts are distributed around the rubber ring.

[0011] Preferably, the ring groove is annularly opened along the center of the flange ring, and the rubber ring is attached to the inner wall of the ring groove.

[0012] Preferably, an automatic switching control device for a nitrogen generator under different production loads includes a processor module. The processor module is used to assist the display screen and the operation panel for manipulation assistance, and at the same time control the connected solenoid valves. The solenoid valves correspond to the number of auxiliary pipes arranged and are electrically connected to the processor module.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] 1. During the use of the present utility model, the connected processor module can be manually adjusted through the operation panel to open the solenoid valves corresponding to each group of auxiliary pipes to relieve the gas transmission pressure of the main pipe body. It can also be monitored and processed by the processor module. When the pressure approaches a certain threshold, then adjust the corresponding connected solenoid valve to open, forming a process of single-pipe main pipe body gas transmission or multi-group auxiliary pipes synchronous gas transmission, relieving the gas transmission pressure, reducing gas leakage or overpressure phenomena, making the gas transmission process in the overall nitrogen production process stable, and improving safety.

[0015] 2. This control device is connected to the intake position through the flange plate at one end of the main pipe body, while the other end and multiple groups of auxiliary pipes are both kept in communication with the buffer tank through leak-proof flange groups, forming a multi-branch distribution structure. During the gas distribution process, the distribution regulation can be achieved by adjusting the solenoid valve to share the pressure and improve the stability.

[0016] 3. The flange ring at the other end of its main pipe body is connected and fixed to one side of the buffer tank through bolts around it. The rubber ring fitted to the inner wall of the ring groove is used to improve the fitting stability and airtightness, reducing the gas leakage situation during use.

[0017] Other features and advantages of the present utility model will be described in the subsequent description, and partly will become obvious from the description, or will be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the pipe rack main body of the present utility model;

[0019] Figure 2 It is a side internal structural schematic diagram of the controller module of the present utility model;

[0020] Figure 3 It is an operation logic schematic diagram of the automatic switching control system of the present utility model;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the leak-proof flange group of the present utility model.

[0022] In the figure: 1. Pipe rack; 101. Main pipe body; 102. Flange plate; 103. Solenoid valve; 104. Auxiliary pipe; 2. Controller module; 201. Ring rack; 202. Box body; 203. Storage battery; 204. Display screen; 205. Operation panel; 206. Pressure sensor; 3. Leak-proof flange group; 301. Flange ring; 302. Ring groove; 303. Rubber ring; 304. Bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art in the technical field of the present utility model without creative efforts based on the embodiments of the present utility model belong to the protection scope of the present utility model.

[0024] Please refer to Figures 1-4, An automatic switching control device for a nitrogen generator under different production loads in this embodiment includes a pipe rack 1. A controller module 2 is arranged in the middle of one side of the pipe rack 1. One end of the pipe rack 1 is connected with a leak-proof flange group 3. The pipe rack 1 includes a main pipe body 101. One end of the main pipe body 101 is connected with a flange plate 102. The other end of the main pipe body 101 is connected with a solenoid valve 103. And auxiliary pipes 104 are connected to both sides of the main pipe body 101.

[0025] As Figures 1-3 shown, the pipe rack 1 in the present utility model is similar to the existing compressed pipeline transportation and distribution structure. The main improvement point of the present utility model is to realize multi-channel regulation through multiple groups of auxiliary pipes 104 and the corresponding solenoid valves 103 for connection control, and can perform single-channel or multi-channel automatic adjustment corresponding to different production loads to keep the transportation and distribution pressure stable. The solenoid valve 103 and the main pipe body 101 in the present utility model are both prior arts. When using this control device, the flange plate 102 at one end of the main pipe body 101 can be connected to the intake position, and the other end and multiple groups of auxiliary pipes 104 are both kept in communication with the buffer tank through the leak-proof flange group 3 to form a multi-branch transportation and distribution structure. During the gas transportation and distribution process, the transportation and distribution regulation can be realized by regulating the solenoid valve 103 to share the pressure and improve the stability.

[0026] As Figures 2-3 shown, a box body 202 is connected to one side of the ring rack 201. A storage battery 203 is arranged inside the box body 202. A display screen 204 is arranged on the outer side of the box body 202. An operation panel 205 is arranged at the bottom of the display screen 204. And a pressure sensor 206 is connected to the other side of the ring rack 201. When the main pipe body 101 is connected and used for transportation and distribution, the pressure sensor 206 carried by the ring rack 201 connected to one end of the main pipe body 101 can monitor the internal gas transportation and distribution pressure, and is connected to the processor module inside the box body 202, and can transmit the monitored data in real time. At the same time, the pressure data is displayed through the display screen 204. And the user can manually control the connected processor module through the operation panel 205 to open the solenoid valves 103 corresponding to the auxiliary pipes 104 to relieve the gas transportation and distribution pressure of the main pipe body 101. It can also be monitored and processed by the processor module. When the pressure is close to a certain threshold, then regulate the corresponding solenoid valve 103 to open, forming a process of single-pipe main pipe body 101 transportation and distribution or synchronous transportation and distribution of multiple groups of auxiliary pipes 104, relieving the transportation and distribution pressure, reducing gas leakage or overpressure phenomena, making the gas transportation and distribution process stable during the overall nitrogen production process and improving safety.

[0027] As Figure 4As shown, the leak-proof flange group 3 includes a flange ring 301, and a ring groove 302 is provided at the center of the flange ring 301. A rubber ring 303 is attached to the inner walls around the ring groove 302, and bolts 304 are distributed around the rubber ring 303. The flange ring 301 is fixedly connected to one side of the buffer tank through the bolts 304 around it. The rubber ring 303 attached to the inner wall of the ring groove 302 is used to improve the fitting stability and airtightness, and reduce the gas leakage during use.

[0028] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the technical field to which the present invention pertains, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. An automatic switching control device for a nitrogen generator under different production loads, comprising a pipe rack (1), characterized in that: A controller module (2) is arranged in the middle of one side of the pipe rack (1), and one end of the pipe rack (1) is connected to a leakproof flange group (3). The pipe rack (1) comprises a main pipe body (101), and one end of the main pipe body (101) is connected to a flange sheet (102), the other end of the main pipe body (101) is connected to a solenoid valve (103), and both sides of the main pipe body (101) are connected to auxiliary pipes (104), and the auxiliary pipes (104) are symmetrically distributed along the two sides of the main pipe body (101), and each group The auxiliary pipes (104) are all connected to corresponding electromagnetic valves (103), the controller module (2) comprises a ring frame (201), one side of the ring frame (201) is connected to a box body (202), a storage battery (203) is arranged inside the box body (202), a display screen (204) is arranged on the foreign currency side of the box body (202), an operation panel (205) is arranged at the bottom of the display screen (204), and the other side of the ring frame (201) is connected to a pressure sensor (206).

2. The automatic switching control device for nitrogen generator under different production loads according to claim 1 is characterized in that: The ring frame (201) is fixedly connected to the pressure sensor (206) and the box body (202), and the ring frame (201) is arranged at the middle end of the pipe frame (1) and fixed.

3. The automatic switching control device for nitrogen generator under different production loads according to claim 1 is characterized in that: The display screen (204) and the operation panel (205) are electrically connected, and the display screen (204), the operation panel (205), the storage battery (203) and the box body (202) are fixedly connected.

4. The automatic switching control device for nitrogen generator under different production loads according to claim 1, characterized in that: The leakproof flange assembly (3) comprises a flange ring (301), and a ring groove (302) is provided at the center of the flange ring (301). A rubber ring (303) is attached to the inner wall around the ring groove (302), and bolts (304) are distributed around the rubber ring (303).

5. The automatic switching control device for nitrogen generator under different production loads according to claim 4 is characterized in that: The annular groove (302) is opened in an annular shape along the center of the flange ring (301), and the rubber ring (303) is fitted along the inner wall of the annular groove (302).

6. The automatic switching control device for nitrogen generator under different production loads according to claim 1, characterized in that: It comprises a processor module, the processor module is used to assist the display screen (204) and the operation panel (205) in operating assistance, and at the same time control the connected solenoid valve (103), the solenoid valve (103) corresponds to the number of auxiliary pipes (104) installed and is electrically connected to the processor module.

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