Molecular sieve back flushing device

Abstract

The utility model relates to the technical field of ambient air detection, in particular to a molecular sieve back flushing device which comprises an air pipe frame and a first communicating valve, a second communicating valve is arranged at the other end of the air pipe frame, and a three-way shuttle valve is arranged at one end of the air pipe frame through the first communicating valve. A five-way electromagnetic valve is arranged at the other end of the air pipe frame through a second communication valve, a first cylinder base is arranged on one side of the air pipe frame, and a second cylinder base is arranged on the other side of the air pipe frame. Through the arrangement of the air pipe frame, the first communication valve, the second communication valve, the three-way shuttle valve, the five-way electromagnetic valve, the first cylinder seat, the second cylinder seat, the first molecular sieve and the second molecular sieve, the molecular sieve renewable filtering system has the effect of further removing gaseous moisture in air; the molecular sieve renewable filtering system is composed of a first cylinder base, a second cylinder base, a first molecular sieve, a second molecular sieve, a five-way electromagnetic valve and a three-way shuttle valve, wherein the first cylinder base and the second cylinder base are arranged side by side, and the first molecular sieve and the second molecular sieve are arranged inside.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental air detection, in particular to a molecular sieve backwashing device. Background Art

[0002] Air detection in a broad sense refers to the detection of the components of air. Air detection in a narrow sense mainly focuses on indoor air detection from an application perspective. It refers to the release of harmful substances contained in indoor decorative materials, furniture, etc. into home and office environments, causing decoration pollution, to detect air quality.

[0003] For example, the patent document with the announcement number CN 211513978 U discloses a novel molecular sieve circulation adsorption device, which belongs to the technical field of molecular sieve adsorption devices, including a tower body, wherein an air inlet pipe and an air outlet pipe are respectively arranged at both ends of the tower body; a first aluminum oxide layer is arranged on the inner side of the tower body near one end of the air inlet pipe, and a molecular sieve is arranged near one end of the air outlet pipe, and a second aluminum oxide layer is also arranged between the first aluminum oxide layer and the molecular sieve, and the first aluminum oxide layer, the second aluminum oxide layer and the molecular sieve are separated by a partition net; a buffer plate is also arranged between the second aluminum oxide layer and the molecular sieve, and a buffer cavity is also arranged between the buffer plate and the molecular sieve. The utility model has a simple structure and is easy to use. It uses activated alumina as a protective layer for the molecular sieve, reduces the free water absorbed by the molecular sieve, maintains the relative stability of the molecular sieve, and prolongs the service life of the molecular sieve. It has strong practicality and is suitable for popularization and use.

[0004] However, the existing filtration device is a single filter cartridge equipped with a molecular sieve, which has a short service life and a high maintenance frequency. In addition, when installing the existing equipment, the molecular sieves can only be manually disassembled and installed one by one. The overall disassembly and assembly efficiency is low, which seriously affects the normal daily air detection operation of the equipment and cannot meet daily use needs. Therefore, it is urgent to design a molecular sieve backwashing device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a molecular sieve backwashing device to solve the problem that the existing filtering device proposed in the above background technology is a single filter cartridge equipped with a molecular sieve, has a short service life, and a high maintenance frequency, and when installing the existing equipment, the molecular sieve can often only be manually disassembled and installed one by one, and the overall disassembly and assembly efficiency is low, which seriously affects the normal daily air detection operation of the equipment and cannot meet the daily use needs.

[0006] To achieve the above object, the utility model provides the following technical solutions: a molecular sieve backwashing device, comprising an air pipe rack, one end of the air pipe rack is provided with a first connecting valve, the other end of the air pipe rack is provided with a second connecting valve, one end of the air pipe rack is provided with a three-way shuttle valve through the first connecting valve, and the other end of the air pipe rack is provided with a five-way solenoid valve through the second connecting valve;

[0007] A first cartridge seat and a second cartridge seat, wherein the first cartridge seat is disposed on one side of the trachea frame, and the second cartridge seat is disposed on the other side of the trachea frame.

[0008] Preferably, a first molecular sieve is disposed inside the first cartridge seat, and a second molecular sieve is disposed inside the second cartridge seat.

[0009] Preferably, a docking seat is fixedly connected between the first molecular sieve and the second molecular sieve, and a connecting grid is arranged inside the docking seat.

[0010] Preferably, a connecting seat is fixedly connected to the top center of the first cartridge seat and the second cartridge seat, and a movable shaft is provided at the top of the connecting seat.

[0011] Preferably, one end of the movable shaft is movably connected to a fixing bolt, and the top end of the connecting seat is movably connected to a connecting rod via the movable shaft.

[0012] Preferably, fixed side seats are fixedly connected to both sides of the trachea rack, and sealing strips are provided at the interfaces between the fixed side seats and the first tube seat and the second tube seat.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The molecular sieve backwashing device, through the arranged air pipe rack, the first connecting valve, the second connecting valve, the three-way shuttle valve, the five-way solenoid valve, the first cartridge seat, the second cartridge seat, the first molecular sieve and the second molecular sieve, the molecular sieve regenerable filtration system functions to further remove gaseous moisture in the air, the molecular sieve regenerable filtration system is composed of two parallel cartridge seats and the second cartridge seats with the first molecular sieve and the second molecular sieve inside, a five-way solenoid valve and a three-way shuttle valve, the two first cartridge seats and the second cartridge seats with the first molecular sieve and the second molecular sieve work alternately, when one cartridge with the molecular sieve is used to filter the air, the other is in regeneration to prepare for the next round of filtering the air, when the instrument is started, the five-way solenoid valve guides the high-pressure air into one of the two first cartridge seats and the second cartridge seats with the first molecular sieve and the second molecular sieve, and the other The cylinder is connected to the atmosphere. When the air passes through the first cylinder, the molecular sieve can remove almost all the gaseous moisture therein and output dry air, wherein a part of the dry air enters the second cylinder equipped with the molecular sieve through the three-way shuttle valve. Since the second cylinder equipped with the molecular sieve is connected to the atmosphere, the dry air expands rapidly in the second cylinder, the volume increases, the relative humidity decreases, and is quickly discharged into the atmosphere. The moisture in the cylinder is taken away by the dry air, and the molecular sieve in the cylinder is regenerated, so that the first cylinder seat and the second cylinder seat and the first and second molecular sieves inside work alternately, and the working frequency is switched every two minutes. Since the first molecular sieve and the second molecular sieve work alternately, one is removing water while the other is in a regenerating state, so the molecular sieve does not need to be replaced, which reduces the maintenance frequency and realizes the long life of the molecular sieve, reflecting the practicality of the equipment design.

[0015] The molecular sieve backwashing device further improves the overall use effect of the equipment by arranging the air pipe rack, the first cartridge seat, the second cartridge seat, the docking seat, the connection grid, the connecting seat, the movable shaft, the fixing bolt, the connecting rod, the fixed side seat and the sealing strip. In the daily use process, the staff can fix the brand-new first molecular sieve and the second molecular sieve inside the first cartridge seat and the second cartridge seat, and then the first cartridge seat and the second cartridge seat as a whole can be movably connected through the movable shaft between their respective connecting seats and the connecting rod, and then the connecting rod can drive the first cartridge seat and the second cartridge seat at both ends of the connecting seat and the fixed side seats on both sides of the air pipe rack. The adaptable quick docking operation can be carried out, and the fixed side seat can be quickly sealed and fixed with the sealing strips of the first cartridge seat and the second cartridge seat. At this time, tighten the fixing bolt at one end of the movable shaft to complete the quick docking of the first molecular sieve and the second molecular sieve, ensuring that the docking seats of the first molecular sieve and the second molecular sieve and the connecting grid are firmly connected and installed with the air pipe frame. This design is also convenient for subsequent quick disassembly and maintenance operations. The whole equipment can be used in the zero gas generator. Based on the physical adsorption method, water and a small amount of impurities are adsorbed, and then the original adsorbed impurities are discharged from the analytical sub-sieve by backblowing, which reflects the comprehensiveness of the equipment design. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0017] Figure 2 It is an overall schematic diagram of the first cartridge seat and the second cartridge seat structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the airflow principle of the structure of the utility model;

[0019] Figure 4 Utility Model Figure 1 A magnified schematic diagram of the structure in the middle.

[0020] In the figure: 1. trachea rack; 2. first connecting valve; 3. second connecting valve; 4. three-way shuttle valve; 5. five-way solenoid valve; 6. first cartridge seat; 7. second cartridge seat; 8. first molecular sieve; 9. second molecular sieve; 10. docking seat; 11. connecting grid; 12. connecting seat; 13. movable shaft; 14. fixing bolt; 15. connecting rod; 16. fixed side seat; 17. sealing strip. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 , an embodiment provided by the utility model:

[0023] A molecular sieve backwashing device comprises an air pipe rack 1, one end of the air pipe rack 1 is provided with a first connecting valve 2, the other end of the air pipe rack 1 is provided with a second connecting valve 3, one end of the air pipe rack 1 is provided with a three-way shuttle valve 4 through the first connecting valve 2, the other end of the air pipe rack 1 is provided with a five-way solenoid valve 5 through the second connecting valve 3, a first cartridge seat 6 and a second cartridge seat 7 are fixedly connected with a connecting seat 12 at the top center, a movable shaft 13 is provided at the top of the connecting seat 12, one end of the movable shaft 13 is movably connected with a fixing bolt 14, and the top of the connecting seat 12 is movably connected with a connecting rod 15 through the movable shaft 13 The two sides of the trachea rack 1 are fixedly connected with fixed side seats 16, and the interfaces between the fixed side seats 16 and the first cartridge seats 6 and the second cartridge seats 7 are provided with sealing strips 17. The molecular sieve regenerable filtration system is composed of two parallel first cartridge seats 6 and the second cartridge seats 7 and the first molecular sieves 8 and the second molecular sieves 9 inside, a five-way solenoid valve 5 and a three-way shuttle valve 4. The two first cartridge seats 6 and the second cartridge seats 7 equipped with the first molecular sieves 8 and the second molecular sieves 9 work alternately. When one cartridge equipped with the molecular sieve is used to filter the air, the other is in regeneration to prepare for the next round of filtering the air.

[0024] The first cartridge seat 6 and the second cartridge seat 7 are provided with the first cartridge seat 6 on one side of the trachea frame 1, and the second cartridge seat 7 is provided on the other side of the trachea frame 1. The first cartridge seat 6 is provided with a first molecular sieve 8 inside, and the second molecular sieve 9 is provided inside the second cartridge seat 7. A docking seat 10 is fixedly connected between the first molecular sieve 8 and the second molecular sieve 9, and a connecting grid 11 is provided inside the docking seat 10. The brand new first molecular sieve 8 and the second molecular sieve 9 are fixedly installed inside the first cartridge seat 6 and the second cartridge seat 7. Then, the first cartridge seat 6 and the second cartridge seat 7 as a whole can be movably connected through the movable shaft 13 between their respective connecting seats 12 and the connecting rod 15. After that, the first cartridge seat 6 and the second cartridge seat 7 at both ends of the connecting seats 12 can be driven by the connecting rod 15 to perform adaptive quick docking operation with the fixed side seats 16 on both sides of the trachea frame 1, and the fixed side seat 16 is quickly sealed and fixed with the sealing strip 17 of the first cartridge seat 6 and the second cartridge seat 7. At this time, tighten the fixing bolt 14 at one end of the movable shaft 13 to complete the quick docking of the first molecular sieve 8 and the second molecular sieve 9.

[0025] Working principle: The molecular sieve regenerable filtration system is used to further remove gaseous moisture from the air. The molecular sieve regenerable filtration system consists of two parallel cartridges 6 and 7 equipped with the first molecular sieve 8 and the second molecular sieve 9, a five-way solenoid valve 5 and a three-way shuttle valve 4. The two first cartridges 6 and the second cartridges 7 equipped with the first molecular sieve 8 and the second molecular sieve 9 work alternately. When one cartridge equipped with a molecular sieve is used to filter the air, the other is in regeneration to prepare for the next round of air filtering. When the instrument is started, the five-way solenoid valve 5 guides high-pressure air into the two first cartridges 6 and the second cartridges equipped with the first molecular sieve 8 and the second molecular sieve 9. 7, and the other cylinder is connected to the atmosphere. When the air passes through the first cylinder, the molecular sieve can remove almost all the gaseous moisture therein and output dry air, wherein a part of the dry air passes through the three-way shuttle valve 4 and enters the second cylinder equipped with the molecular sieve. Since the second cylinder equipped with the molecular sieve is connected to the atmosphere, the dry air expands rapidly in the second cylinder, the volume increases, the relative humidity decreases, and is quickly discharged into the atmosphere. The moisture in the cylinder is taken away by the dry air, and the molecular sieve in the cylinder is regenerated, so that the first cylinder seat 6 and the second cylinder seat 7 and the first molecular sieve 8 and the second molecular sieve 9 inside work alternately, and the working frequency is switched once every two minutes. The first molecular sieve 8 and the second molecular sieve 9 work alternately, one is in the water removal state, and the other is in the regeneration state, so the molecular sieve does not need to be replaced, which reduces the maintenance frequency and realizes the long life of the molecular sieve. In the daily use process, the staff can fix the brand new first molecular sieve 8 and the second molecular sieve 9 inside the first cartridge seat 6 and the second cartridge seat 7, and then the first cartridge seat 6 and the second cartridge seat 7 as a whole can be movably connected through the movable shaft 13 between the respective connecting seats 12 and the connecting rod 15, and then the first cartridge seat 6 and the second cartridge seat 7 at both ends of the connecting seat 12 can be driven by the connecting rod 15 to quickly align the first cartridge seat 6 and the second cartridge seat 7 at both ends of the fixed side seats 16 on both sides of the trachea frame 1 The connection operation is performed, and the fixed side seat 16 is quickly sealed and fixed with the sealing strip 17 of the first cartridge seat 6 and the second cartridge seat 7. At this time, the fixing bolt 14 at one end of the movable shaft 13 is tightened to complete the quick docking of the first molecular sieve 8 and the second molecular sieve 9, ensuring that the docking seat 10 of the first molecular sieve 8 and the second molecular sieve 9 and the connecting grid 11 are firmly connected and installed with the air pipe frame 1. Such a design is also convenient for subsequent rapid disassembly and maintenance operations. The entire equipment can be applied to the zero gas generator. Based on the physical adsorption method, water and a small amount of impurities are adsorbed, and then the backblowing effect is used to discharge the originally adsorbed impurities from the analysis sub-sieve. The above is the entire working principle of the utility model.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A molecular sieve backwashing device, comprising an air pipe rack (1), characterized in that: One end of the air pipe rack (1) is provided with a first connecting valve (2), and the other end of the air pipe rack (1) is provided with a second connecting valve (3); one end of the air pipe rack (1) is provided with a three-way shuttle valve (4) through the first connecting valve (2), and the other end of the air pipe rack (1) is provided with a five-way solenoid valve (5) through the second connecting valve (3); A first cartridge seat (6) and a second cartridge seat (7), wherein the first cartridge seat (6) is arranged on one side of the trachea rack (1), and the second cartridge seat (7) is arranged on the other side of the trachea rack (1).

2. A molecular sieve backwashing device according to claim 1, characterized in that: A first molecular sieve (8) is arranged inside the first cartridge seat (6), and a second molecular sieve (9) is arranged inside the second cartridge seat (7).

3. A molecular sieve backwashing device according to claim 2, characterized in that: A docking seat (10) is fixedly connected between the first molecular sieve (8) and the second molecular sieve (9), and a connecting grid (11) is arranged inside the docking seat (10).

4. A molecular sieve backwashing device according to claim 1, characterized in that: A connecting seat (12) is fixedly connected at the center of the top end of the first cartridge seat (6) and the second cartridge seat (7), and a movable shaft (13) is provided at the top end of the connecting seat (12).

5. A molecular sieve backwashing device according to claim 4, characterized in that: One end of the movable shaft (13) is movably connected to a fixing bolt (14), and the top end of the connecting seat (12) is movably connected to a connecting rod (15) via the movable shaft (13).

6. A molecular sieve backwashing device according to claim 1, characterized in that: Fixed side seats (16) are fixedly connected to both sides of the air pipe rack (1), and sealing strips (17) are provided at the interfaces between the fixed side seats (16) and the first cylinder seat (6) and the second cylinder seat (7).

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