Maintenance-free moisture absorber capable of indicating breathing state of transformer

Abstract

The utility model belongs to the technical field of maintenance-free moisture absorbers, and particularly relates to a maintenance-free moisture absorber capable of indicating the breathing state of a transformer, which comprises a mounting piece, the upper end of the mounting piece is fixedly connected with a ventilation shell, and the lower end of the mounting piece is fixedly connected with two symmetrically distributed glass cylinders. A metal net is arranged in each glass cylinder, silica gel is arranged on the inner wall of each metal net, a heater is arranged on the inner wall of each silica gel, a flow guide disc is arranged on the outer side of each glass cylinder, and a breathing opening is fixedly connected to the interior of each flow guide disc. Through the arrangement of the central processing unit, the temperature and humidity sensor, the positive and negative pressure sensor and other modules, airflow flow can be monitored, flow data can be calculated, the positive number of the data represents expiration of the transformer, the negative number of the data represents inspiration of the transformer, and measured data is converted into switching values through the central processing unit; an indicating lamp can be used for clearly indicating the exhalation or inspiration state of the transformer.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance-free desiccant, in particular to a maintenance-free desiccant capable of indicating the breathing state of a transformer. Background Art

[0002] Maintenance-free desiccant is a desiccant device that does not require routine maintenance and care. It is usually used in applications such as controlling humidity, preventing moisture and mold growth. Maintenance-free desiccant is suitable for many occasions, such as wardrobes, shoe cabinets, study rooms, vehicle interiors and other places that require moisture protection.

[0003] The utility model patent with patent authorization announcement number CN213660163U discloses an intelligent maintenance-free desiccant that can detect the breathing state of a transformer. The desiccant comprises a tempered glass cylinder filled with desiccant, a heater provided inside the tempered glass cylinder, a flange for connecting the breathing tube of the transformer provided at the top of the tempered glass cylinder, an air hole provided at the center of the flange, and positive and negative pressure sensors and a temperature and humidity sensor provided between the flange and the tempered glass cylinder; an air inlet and outlet are provided at the bottom of the tempered glass cylinder, which are also used as drain outlets; a control box is fixed on the side of the tempered glass cylinder, the control box includes a central processing unit, the central processing unit is connected to a power module and an output module, and the heater, positive and negative pressure sensors and temperature and humidity sensors are all electrically connected to the central processing unit of the control box.

[0004] However, the existing maintenance-free desiccant also has certain shortcomings. When the existing maintenance-free desiccant is in use, because the exhalation or inhalation pressure of the transformer is very weak, the positive and negative pressure values of the pressure sensor cannot normally judge the breathing state of the transformer. Utility Model Content

[0005] The purpose of the utility model is to provide a maintenance-free desiccant that can indicate the breathing state of a transformer, thereby solving the problem that when the existing maintenance-free desiccant is in use, the positive and negative pressure values of the pressure sensor cannot be used to normally judge the breathing state of the transformer because the exhalation or inhalation pressure of the transformer is very weak.

[0006] To achieve the above object, the utility model provides the following technical solution: a maintenance-free desiccant capable of indicating the breathing state of a transformer, comprising a mounting plate, the upper end of which is fixedly connected to a vent shell, the lower end of which is fixedly connected to two symmetrically distributed glass cylinders, each of which is provided with a metal mesh, the inner wall of which is provided with silica gel, the inner wall of which is provided with a heater, and the outer side of each of which is provided with a guide plate;

[0007] The inside of the guide plate is fixedly connected to a breathing port, the inside of the breathing port is fixedly connected to a dustproof net, the lower end of the breathing port is provided with a fan assembly, the inside of the ventilation shell is fixedly connected to a flange, the inner left wall of the flange is provided with a temperature and humidity sensor, the inner right wall of the flange is provided with a positive and negative pressure sensor, the inside of the flange is provided with a flow detection module, the front of the mounting plate is fixedly connected to an electric control box, and the inside of the guide plate is provided with a dust removal mechanism.

[0008] Preferably, the heater contacts the mounting plate, the silica gel contacts the mounting plate, and the metal mesh contacts the mounting plate. The circulating airflow can be heated and dried by the arrangement of the heater, silica gel, metal mesh and other structures.

[0009] Preferably, the dustproof net is circular in shape as a whole and is woven from stainless steel wire. The dustproof net can filter out impurities such as dust in the airflow.

[0010] Preferably, the dust removal mechanism includes a fixed rod, the inner wall of the guide plate is fixedly connected to the fixed rod, the inner wall of the fixed rod is slidably connected to a telescopic rod, the telescopic rod contacts the dustproof net, the upper end of the telescopic rod is fixedly connected to a magnetic disk, the lower end of the magnetic disk is fixedly connected to a spring, the other end of the spring is fixedly connected to the fixed rod, the upper side of the fixed rod is fixedly connected to a support frame, the horizontal part of the support frame is fixedly installed with an electromagnet, the electromagnet is located on the upper side of the magnetic disk, and through the coordinated use of structures such as the electromagnet, the magnetic disk, and the spring, the telescopic rod can impact and oscillate the dustproof net, thereby oscillating and removing dust from the dustproof net.

[0011] Preferably, the lower end of the telescopic rod is provided with a rounded corner, and the rounded corner is made of rubber material. Through the setting of the rounded corner at the lower end of the telescopic rod, it can be used to impact the dustproof net.

[0012] Preferably, two springs are provided, and the two springs are symmetrically distributed on the magnetic disk. Through the provision of the springs, the magnetic disk can be connected for use.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The utility model can monitor the air flow and calculate the flow data through the setting of modules such as the central processing unit, temperature and humidity sensors, positive and negative pressure sensors, etc. A positive data indicates that the transformer is exhaling, and a negative data indicates that the transformer is inhaling. The central processing unit converts the measured data into a switching value, and an indicator light can be used to clearly indicate the state of the transformer exhaling or inhaling.

[0015] 2. The utility model can filter out dust and other impurities in the air flow through the provision of a dustproof net, thereby avoiding the influence of dust and other particulate impurities. In addition, under the structure of an electromagnet, a magnetic plate, a spring, etc., the telescopic rod can impact and vibrate the dustproof net, thereby vibrating and removing dust from the dustproof net to ensure the circulation effect of the dustproof net. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 For the utility model Figure 1 Cross-sectional view of the static control box;

[0018] Figure 3 For the utility model Figure 2 Enlarged view of the guide plate;

[0019] Figure 4 For the utility model Figure 2 Enlarged view of the flange;

[0020] Figure 5 This is a flow detection schematic diagram of the utility model.

[0021] In the figure: 1. Mounting plate; 101. Ventilation shell; 2. Glass tube; 3. Metal mesh; 4. Silica gel; 5. Heater; 6. Guide plate; 7. Breathing port; 8. Dust net; 9. Fan assembly; 10. Flange; 11. Temperature and humidity sensor; 12. Positive and negative pressure sensor; 13. Flow detection module; 14. Electric control box; 15. Dust removal mechanism; 151. Fixed rod; 152. Telescopic rod; 153. Magnetic disk; 154. Spring; 155. Support frame; 156. Electromagnet. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5A maintenance-free desiccant that can indicate the breathing status of a transformer includes a mounting plate 1, the upper end of which is fixedly connected to a vent shell 101, and the lower end of which is fixedly connected to two symmetrically distributed glass cylinders 2. A metal mesh 3 is provided inside each glass cylinder 2, and a silica gel 4 is provided on the inner wall of the metal mesh 3. A heater 5 is provided on the inner wall of the silica gel 4, and a guide plate 6 is provided on the outer side of each glass cylinder 2.

[0024] The inside of the guide plate 6 is fixedly connected to a breathing port 7, the inside of the breathing port 7 is fixedly connected to a dustproof net 8, the lower end of the breathing port 7 is provided with a fan assembly 9, the inside of the ventilation shell 101 is fixedly connected to a flange 10, the inner left wall of the flange 10 is provided with a temperature and humidity sensor 11, the inner right wall of the flange 10 is provided with a positive and negative pressure sensor 12, the inside of the flange 10 is provided with a flow detection module 13, and the front of the mounting plate 1 is fixedly connected to an electric control box 14.

[0025] See also Figure 1 、 Figure 2 、 Figure 3 The heater 5 is in contact with the mounting piece 1, the silica gel 4 is in contact with the mounting piece 1, and the metal mesh 3 is in contact with the mounting piece 1. Through the structural settings of the heater 5, silica gel 4, metal mesh 3, etc., the circulating airflow can be heated and dried. The dustproof net 8 is circular as a whole. The dustproof net 8 is woven from stainless steel wire. Through the setting of the dustproof net 8, dust and other impurities in the airflow can be filtered out.

[0026] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The dust removal mechanism 15 is provided inside the guide plate 6. The dust removal mechanism 15 includes a fixed rod 151, and the inner side wall of the guide plate 6 is fixedly connected to the fixed rod 151. The inner wall of the fixed rod 151 is slidably connected to the telescopic rod 152, and the telescopic rod 152 contacts the dustproof net 8. The upper end of the telescopic rod 152 is fixedly connected to the magnetic disk 153, and the lower end of the magnetic disk 153 is fixedly connected to the spring 154. The other end of the spring 154 is fixedly connected to the fixed rod 151. The upper side of the fixed rod 151 is fixedly connected to the support frame 155, and the horizontal part of the support frame 155 is fixedly installed with an electromagnet 156, which is located on the upper side of the magnetic disk 153. Through the coordinated use of structures such as the electromagnet 156, the magnetic disk 153, and the spring 154, the telescopic rod 152 can impact and vibrate the dustproof net 8, thereby oscillating and removing dust from the dustproof net 8.

[0027] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4The lower end of the telescopic rod 152 is provided with a rounded corner, which is made of rubber. Through the setting of the rounded corner at the lower end of the telescopic rod 152, the dustproof net 8 can be impacted. There are two springs 154, and the two springs 154 are symmetrically distributed on the magnetic disk 153. Through the setting of the spring 154, the magnetic disk 153 can be connected and used.

[0028] The specific implementation process of the utility model is as follows: when in use, the temperature and humidity sensor 11, the positive and negative pressure sensor 12, and the flow detection module 13 provided inside the flange 10 can be used to monitor the air flow data, and the power supply module, other control units, heating controller, output module, memory, central processing unit and other modules inside the electric control box 14 are used in conjunction with each other to calculate the flow data. A positive number indicates that the transformer is exhaling, and a negative number indicates that the transformer is inhaling. The measured data is converted into a switching value by the central processing unit, and the indicator light can be used to clearly indicate the state of the transformer exhaling or inhaling.

[0029] By setting the dustproof net 8, dust and other impurities in the airflow can be filtered out, and the electromagnet 156 is started to magnetically attract the magnetic disk 153 to pull the magnetic disk 153 to move, thereby driving the telescopic rod 152 to move, so that the telescopic rod 152 is separated from the dustproof net 8, and the spring 154 is deformed, and the electromagnet 156 is turned off, so that the electromagnet 156 no longer magnetically attracts the magnetic disk 153, and the spring 154 recovers its deformation to pull the telescopic rod 152 to contact and collide with the dustproof net 8, and oscillate the dustproof net 8 to remove dust, so as to ensure the circulation effect of the dustproof net 8.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A maintenance-free desiccant capable of indicating the breathing state of a transformer, comprising a mounting plate (1), characterized in that: The upper end of the mounting plate (1) is fixedly connected to a vent shell (101), and the lower end of the mounting plate (1) is fixedly connected to two symmetrically distributed glass cylinders (2), each of the glass cylinders (2) is provided with a metal mesh (3), the inner wall of the metal mesh (3) is provided with silica gel (4), the inner wall of the silica gel (4) is provided with a heater (5), and the outer side of each glass cylinder (2) is provided with a guide plate (6); The interior of the deflector (6) is fixedly connected to a breathing port (7), the interior of the breathing port (7) is fixedly connected to a dustproof net (8), the lower end of the breathing port (7) is provided with a fan assembly (9), the interior of the ventilation shell (101) is fixedly connected to a flange (10), the inner left wall of the flange (10) is provided with a temperature and humidity sensor (11), the inner right wall of the flange (10) is provided with a positive and negative pressure sensor (12), the interior of the flange (10) is provided with a flow detection module (13), the front of the mounting plate (1) is fixedly connected to an electric control box (14), and the interior of the deflector (6) is provided with a dust removal mechanism (15).

2. A maintenance-free desiccant capable of indicating the breathing state of a transformer according to claim 1, characterized in that: The heater (5) is in contact with the mounting sheet (1), the silica gel (4) is in contact with the mounting sheet (1), and the metal mesh (3) is in contact with the mounting sheet (1).

3. The maintenance-free desiccant capable of indicating the breathing state of a transformer according to claim 1, characterized in that: The dustproof net (8) is circular in shape as a whole and is woven from stainless steel wires.

4. The maintenance-free desiccant capable of indicating the breathing state of a transformer according to claim 1, characterized in that: The dust removal mechanism (15) comprises a fixed rod (151), the inner side wall of the guide plate (6) is fixedly connected to the fixed rod (151), the inner wall of the fixed rod (151) is slidably connected to a telescopic rod (152), the telescopic rod (152) contacts the dustproof net (8), the upper end of the telescopic rod (152) is fixedly connected to a magnetic disk (153), the lower end of the magnetic disk (153) is fixedly connected to a spring (154), the other end of the spring (154) is fixedly connected to the fixed rod (151), the upper side of the fixed rod (151) is fixedly connected to a support frame (155), the horizontal part of the support frame (155) is fixedly installed with an electromagnet (156), and the electromagnet (156) is located on the upper side of the magnetic disk (153).

5. The maintenance-free desiccant capable of indicating the breathing state of a transformer according to claim 4, characterized in that: The lower end of the telescopic rod (152) is provided with a rounded corner, and the rounded corner is made of rubber material.

6. The maintenance-free desiccant capable of indicating the breathing state of a transformer according to claim 4, characterized in that: Two springs (154) are provided, and the two springs (154) are symmetrically distributed on the magnetic disk (153).

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