A noise-reducing nitrogen generator

Abstract

This utility model discloses a noise-reducing nitrogen generator, relating to the field of nitrogen generator technology. It includes a housing, with a noise-reducing cavity installed inside the housing. A shock-absorbing rod is installed on the inner bottom wall of the noise-reducing cavity. A support platform is installed on the top of the shock-absorbing rod, and an air compressor is installed on the top of the support platform. An air intake port is installed at the input end of the air compressor, and an air delivery pipe is installed on the top of the air compressor. A first transmission pipe is installed at one end of the air delivery pipe, and an air buffer tank is installed at the other end of the first transmission pipe. This utility model improves the strength of the housing and ensures the safety of the air compressor by installing the noise-reducing cavity and shock-absorbing rod. The noise-reducing cavity is fixed inside the housing and is used to intercept and reduce noise. The inner side of the noise-reducing cavity fixes the shock-absorbing rod, ensuring its stability. The top of the shock-absorbing rod supports the air compressor, thus mitigating vibration and reducing noise.

Description

Technical Field

[0001] This utility model relates to the field of nitrogen generator technology, specifically a noise-reducing nitrogen generator. Background Technology

[0002] In the production of fire extinguishers, a nitrogen generator is required. The nitrogen gas produced by the nitrogen generator is liquefied and then injected into the tank of the fire extinguisher. A nitrogen generator is a device that uses air as raw material and separates oxygen and nitrogen in it using physical methods to obtain nitrogen gas. An adsorption tower is an essential part of the nitrogen generator. The adsorption tower utilizes the separation effect of carbon molecular sieves on nitrogen and oxygen.

[0003] Patent document CN222173588U discloses a nitrogen generator, which includes "a PSA nitrogen generator, wherein the PSA nitrogen generator includes a piping system and two adsorption towers of the same specifications, wherein a sealing plate is fixed at the top of the adsorption tower, and both the top of the sealing plate and the top of the adsorption tower are provided with rotation holes."

[0004] The nitrogen generator in the aforementioned patent document lacks a noise reduction structure, resulting in excessive noise from the air intake device and impacting the surrounding environment. Utility Model Content

[0005] The purpose of this utility model is to provide a noise-reducing nitrogen generator to solve the technical problem that the nitrogen generator in the prior art lacks a noise-reducing structure, resulting in excessive noise from the air intake device and affecting the surrounding environment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a noise-reducing nitrogen generator, comprising a housing, a noise-reducing cavity installed on the inner side of the housing, a shock-absorbing rod installed on the inner bottom wall of the noise-reducing cavity, a support platform installed on the top of the shock-absorbing rod, an air compressor installed on the top of the support platform, an air intake port installed at the input end of the air compressor, an air delivery pipe installed on the top of the air compressor, a first transmission pipe installed at one end of the air delivery pipe, an air buffer tank installed at one end of the first transmission pipe, a second transmission pipe connected to the output end of the air buffer tank, a guide pipe installed at one end of the second transmission pipe, a third transmission pipe installed at one end of the guide pipe, a filter installed on the outer side of the third transmission pipe, and a nitrogen generator installed at one end of the third transmission pipe.

[0007] Preferably, a nitrogen buffer tank is installed at the output end of the nitrogen generator via a connecting pipe.

[0008] Preferably, the front of the housing is fitted with a movable cover.

[0009] Preferably, a heat exchange chamber is installed on the outer side of the air duct, an evaporator is installed on the inner rear wall of the heat exchange chamber, a protective box is installed on the outer side of the heat exchange chamber, and an air outlet is opened on the rear wall of the protective box.

[0010] Preferably, a compressor is installed at the output end of the evaporator via a copper tube, a condenser is installed at the output end of the compressor via a copper tube, a dryer filter is installed at the output end of the condenser via a copper tube, an expansion valve is installed at the front end of the dryer filter via a copper tube, and the front end of the expansion valve is connected to the evaporator via a copper tube.

[0011] Preferably, a blower is mounted on the inner bottom wall of the protective box via a support frame, and the blower is located in front of the condenser.

[0012] Preferably, a ventilation pipe is installed on one inner wall of the housing, a detachable sleeve is installed on the outer side of the ventilation pipe, and a filter screen is installed on the inner side of the sleeve.

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

[0014] This invention utilizes a noise reduction cavity and a shock absorber rod. The housing is made of metal, which improves the strength of the housing and ensures the safety of the air compressor. The noise reduction cavity is fixed inside the housing and is used to intercept and reduce noise. The shock absorber rod is fixed inside the noise reduction cavity to ensure its stability. The top of the shock absorber rod supports the air compressor. The shock absorber rod reduces vibration and noise.

[0015] This utility model allows for easy disassembly and installation of the sleeve by connecting the outer side of the ventilation duct to the sleeve. The sleeve fixes the inner filter screen, which is used to filter impurities in the air, and the filter screen can be easily disassembled and replaced by the user. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the support plate structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the support tube structure of this utility model.

[0020] In the diagram: 1. Housing; 2. Noise Reduction Chamber; 3. Shock Absorber; 4. Support Platform; 5. Air Compressor; 6. Inlet; 7. Air Supply Pipe; 8. Movable Cover; 9. First Transmission Pipe; 10. Air Buffer Tank; 11. Second Transmission Pipe; 12. Protective Box; 13. Heat Exchange Chamber; 14. Air Guide Pipe; 15. Evaporator; 16. Compressor; 17. Condenser; 18. Dryer Filter; 19. Expansion Valve; 20. Third Transmission Pipe; 21. Filter; 22. Nitrogen Generator; 23. Nitrogen Buffer Tank; 24. Ventilation Pipe; 25. Sleeve; 26. Filter Screen; 27. Air Outlet; 28. Hair Blower. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides an embodiment: a noise-reducing nitrogen generator, including a housing 1, a noise-reducing cavity 2 installed on the inner side of the housing 1, a movable cover 8 installed on the front of the housing 1, a ventilation pipe 24 installed on one inner wall of the housing 1, a detachable sleeve 25 installed on the outer side of the ventilation pipe 24, and a filter screen 26 installed on the inner side of the sleeve 25.

[0024] The housing 1 is made of metal to improve its strength and ensure the safety of the air compressor 5. The noise reduction chamber 2 is fixed inside the housing 1 and is used to intercept and reduce noise. The front of the housing 1 is limited by the movable cover 8, which is convenient for users to disassemble and install the movable cover 8. One side of the housing 1 is fixed to the ventilation pipe 24 to ensure the stability of the ventilation pipe 24. The outer side of the ventilation pipe 24 is movably connected to the sleeve 25, which is convenient for users to disassemble and install the sleeve 25. The sleeve 25 is fixed to the inner filter screen 26, which is used to filter impurities in the air.

[0025] A shock-absorbing rod 3 is installed on the inner bottom wall of the noise reduction cavity 2. A support platform 4 is installed on the top of the shock-absorbing rod 3. An air compressor 5 is installed on the top of the support platform 4. An air intake 6 is installed at the input end of the air compressor 5. An air supply pipe 7 is installed on the top of the air compressor 5. A first transmission pipe 9 is installed at one end of the air supply pipe 7. An air buffer tank 10 is installed at one end of the first transmission pipe 9. A second transmission pipe 11 is connected to the output end of the air buffer tank 10. A guide pipe 14 is installed at one end of the second transmission pipe 11. A third transmission pipe 20 is installed at one end of the guide pipe 14. A filter 21 is installed on the outside of the third transmission pipe 20. A nitrogen generator 22 is installed at one end of the third transmission pipe 20. A nitrogen buffer tank 23 is installed at the output end of the nitrogen generator 22 through a connecting pipe.

[0026] The inner side of the noise reduction cavity 2 is fixed to the shock absorber 3 to ensure the stability of the shock absorber 3. The top of the shock absorber 3 supports the air compressor 5. The shock absorber 3 alleviates vibration and reduces noise. The support platform 4 supports the top air compressor 5 to ensure the smooth operation of the air compressor 5. The air compressor 5 draws in outside air through the air intake 6 and transmits the air to the inside of the air delivery pipe 7. The air delivery pipe 7 guides the air to move and transmits the air to the inside of the first transmission pipe 9. The first transmission pipe 9 guides the air to the inside of the air buffer tank 10. The air buffer tank 10 is used to store air, so that the air buffer tank 10... Internal pressurization facilitates the entry of gas into the second transmission pipe 11. The second transmission pipe 11 guides the air to the inside of the gas guide pipe 14. The gas guide pipe 14 is affected by low temperature, causing the air inside the gas guide pipe 14 to decrease. The gas guide pipe 14 guides the air to the inside of the third transmission pipe 20. The filter 21 filters the moisture in the air, making the air dry. The air enters the nitrogen generator 22. The nitrogen generator 22 is equipped with a carbon molecular sieve as an adsorbent. The selective adsorption of oxygen and nitrogen by the carbon molecular sieve separates nitrogen and oxygen. The separated nitrogen is transferred to the inside of the nitrogen buffer tank 23, where the nitrogen is stored.

[0027] A heat exchange chamber 13 is installed on the outer side of the air duct 14. An evaporator 15 is installed on the inner rear wall of the heat exchange chamber 13. A protective box 12 is installed on the outer side of the heat exchange chamber 13. An air outlet 27 is opened on the rear wall of the protective box 12. A compressor 16 is installed at the output end of the evaporator 15 through a copper pipe. A condenser 17 is installed at the output end of the compressor 16 through a copper pipe. A dryer filter 18 is installed at the output end of the condenser 17 through a copper pipe. An expansion valve 19 is installed at the front end of the dryer filter 18 through a copper pipe. The front end of the expansion valve 19 is connected to the evaporator 15 through a copper pipe. A blower 28 is installed on the inner bottom wall of the protective box 12 through a support frame. The blower 28 is located in front of the condenser 17.

[0028] The protective box 12 fixes the inner heat exchange chamber 13, which facilitates the fixation of the heat exchange chamber 13 to the inner air guide pipe 14, ensuring the stability of the air guide pipe 14. The inner side of the heat exchange chamber 13 is fixed to the evaporator 15. The compressor 16 operates to pressurize the internal refrigerant, causing the refrigerant to become a high-temperature, high-pressure gas. The high-temperature, high-pressure gas is transferred to the interior of the condenser 17, where the refrigerant moves. The blower 28 operates, driving the fan blades to rotate and causing the airflow to move backward, dissipating heat from the condenser 17 and cooling the high-temperature, high-pressure gas into a low-temperature, high-pressure gas. The gas passes through the dryer filter 18 to filter out moisture, and then the refrigerant enters the interior of the expansion valve 19. The expansion valve 19 throttles the medium-temperature, high-pressure liquid refrigerant, turning it into a low-temperature, low-pressure wet vapor. The refrigerant then absorbs heat in the evaporator 15 to achieve a cooling effect, and the vapor is transferred back to the compressor 16.

[0029] Working principle: Air compressor 5 draws in outside air through intake port 6 and transmits the air to the inside of air delivery pipe 7. Air delivery pipe 7 guides the air to the inside of first transmission pipe 9. First transmission pipe 9 guides the air to the inside of air buffer tank 10. Air buffer tank 10 is used to store air and pressurizes the inside of air buffer tank 10 to facilitate the transmission of gas into the inside of second transmission pipe 11. Second transmission pipe 11 guides the air to the inside of air guide pipe 14. Air guide pipe 14 is affected by low temperature, causing the air inside air guide pipe 14 to decrease. Air guide pipe 14 guides the air to the inside of third transmission pipe 20. Filter 21 filters the moisture in the air, making the air dry. The air enters nitrogen generator 22. Carbon molecular sieve is set inside nitrogen generator 22 as adsorbent. The selective adsorption of oxygen and nitrogen by carbon molecular sieve is used to separate nitrogen and oxygen. The separated nitrogen is transmitted to the inside of nitrogen buffer tank 23, where nitrogen buffer tank 23 stores nitrogen.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A noise-reducing nitrogen generator, characterized in that: The device includes a housing (1), a noise reduction chamber (2) installed on the inner side of the housing (1), a shock absorber (3) installed on the inner bottom wall of the noise reduction chamber (2), a support platform (4) installed on the top of the shock absorber (3), an air compressor (5) installed on the top of the support platform (4), an air intake (6) installed at the input end of the air compressor (5), an air supply pipe (7) installed on the top of the air compressor (5), a first transmission pipe (9) installed at one end of the air supply pipe (7), an air buffer tank (10) installed at one end of the first transmission pipe (9), a second transmission pipe (11) connected to the output end of the air buffer tank (10), a guide pipe (14) installed at one end of the second transmission pipe (11), a third transmission pipe (20) installed at one end of the guide pipe (14), a filter (21) installed on the outer side of the third transmission pipe (20), and a nitrogen generator (22) installed at one end of the third transmission pipe (20).

2. The noise-reducing nitrogen generator according to claim 1, characterized in that: The nitrogen generator (22) has a nitrogen buffer tank (23) installed at its output end via a connecting pipe.

3. The noise-reducing nitrogen generator according to claim 1, characterized in that: The front of the box (1) is fitted with a movable cover (8).

4. The noise-reducing nitrogen generator according to claim 1, characterized in that: A heat exchange chamber (13) is installed on the outside of the air duct (14), an evaporator (15) is installed on the inner rear wall of the heat exchange chamber (13), a protective box (12) is installed on the outside of the heat exchange chamber (13), and an air outlet (27) is opened on the rear wall of the protective box (12).

5. A noise-reducing nitrogen generator according to claim 4, characterized in that: The output end of the evaporator (15) is connected to a compressor (16) via a copper pipe. The output end of the compressor (16) is connected to a condenser (17) via a copper pipe. The output end of the condenser (17) is connected to a dryer filter (18) via a copper pipe. The front end of the dryer filter (18) is connected to an expansion valve (19) via a copper pipe. The front end of the expansion valve (19) is connected to the evaporator (15) via a copper pipe.

6. A noise-reducing nitrogen generator according to claim 4, characterized in that: A blower (28) is installed on the inner bottom wall of the protective box (12) via a support frame. The blower (28) is located in front of the condenser (17).

7. A noise-reducing nitrogen generator according to claim 1, characterized in that: A ventilation pipe (24) is installed on one inner wall of the housing (1), a detachable sleeve (25) is installed on the outside of the ventilation pipe (24), and a filter screen (26) is installed on the inside of the sleeve (25).

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