Cabinet type membrane separation nitrogen-making device

Abstract

The utility model discloses a cabinet type membrane separation nitrogen-making device, which relates to the technical field of nitrogen injection, oxygen control and fire prevention and comprises a frame body, a filter component and a separation membrane component, the filtering assembly is arranged on the frame body and used for filtering compressed air, the filtering assembly comprises a steam-water separator and an activated carbon filtering pipe, the steam-water separator is connected with a compressed air inlet through a pipeline, the compressed air inlet is used for introducing compressed air, and the steam-water separator is connected with the activated carbon filtering pipe through a pipeline; the separation membrane assembly is used for separating nitrogen in the compressed air and comprises a tube shell and a separation membrane, the tube shell is fixedly arranged at the bottom of the frame body, the separation membrane is arranged in the tube shell, the tube shell is communicated with the activated carbon filter tube, and the tube shell is connected with a nitrogen outlet for discharging nitrogen through a pipeline. The cabinet type membrane separation nitrogen-making device is small in size, high in integration level and convenient to construct, can be directly placed in a protection area, does not need to build an equipment room, and reduces laying of a nitrogen injection pipeline and a spray head, so that the system manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to nitrogen injection oxygen control fireproof technology field, especially a cabinet type membrane separation nitrogen generator. BACKGROUND

[0002] In the information age, a data center is needed in any industry. Therefore, how to efficiently and conveniently protect the data room is a problem worth studying. In addition to electronic equipment, there is no fire source and flammable material on the surface of the data room, but in various accidents in the data room, fire accidents account for about 80%, and the damage of fire accidents to the data room is disastrous. Data room fire not only causes huge economic losses, but also seriously affects the social life and office order.

[0003] The electrical equipment in the data room is more, the power supply line is complex, and the equipment in the room generates a large amount of heat. In the continuous working process, short circuit, grounding and other phenomena caused by the reduction of insulation performance are easy to occur, thereby causing fire. The fire position of the room is often in the electrical facilities, the inside of the equipment or the power cable bridge and the ceiling and the anti-static floor. The general daily inspection basically does not include individual inspection of these positions, and the detection time of the smoke and temperature sensors has a certain lag, so the initial stage of the electrical fire is not easy to be found. Once the fire breaks out, the fire will spread rapidly along the bundled and bundled cables and network lines under the push of the air conditioning return air flow.

[0004] The main protection means for the data room fire at present is to set up a clean gas fire extinguishing system or a water spray fire extinguishing system in the room. The characteristics of these protection means are to cooperate with the fire detection system and extinguish the fire after the fire occurs, which often has a certain lag and cannot control the fire at the initial stage and cannot fundamentally inhibit the occurrence of fire.

[0005] Nitrogen injection oxygen control fireproofing is a new type of protection technology that has emerged in recent years at home and abroad. Its working principle is to inject nitrogen into the protection area to control the oxygen concentration in the protection area, so that the protection area is in a normal pressure low oxygen environment to prevent fire.

[0006] The nitrogen generator is the core equipment of the nitrogen injection oxygen control fireproofing system. The traditional nitrogen generator is generally placed in a special equipment room, and then the generated nitrogen is sent to the protection area through the laid pipeline and the spray head. However, such nitrogen generator is relatively large in size, and a large number of pipelines and spray heads need to be laid from the equipment room to the protection area, which is high in system cost and complex in construction. Therefore, there are still defects and deficiencies in the prior art. UTILITY MODEL CONTENTS

[0007] The utility model discloses a cabinet type membrane separation nitrogen making device which can be directly installed in a nitrogen injection and oxygen control fireproof protection area, solves the technical problems of the current traditional nitrogen making machine, such as large volume, generally placed in a special equipment room, a large number of pipelines and nozzles need to be laid from the equipment room to the protection area, high system cost and complex construction.

[0008] To realize the above-mentioned purpose, the utility model provides a cabinet type membrane separation nitrogen making device, including:

[0009] Frame body;

[0010] Filter assembly, be located in the frame body, be used for filtering treatment to compressed air, the filter assembly includes steam-water separator and activated carbon filter pipe, the steam-water separator is connected with compressed air import through pipeline, and the compressed air import is used for entering compressed air, and the steam-water separator is connected with the activated carbon filter pipe through the pipeline;

[0011] Separation membrane assembly is used for separating nitrogen in compressed air, and the separation membrane assembly includes tube shell and separation membrane, the tube shell is fixedly arranged at the bottom of the frame body, the separation membrane is arranged in the tube shell, the tube shell is communicated with the activated carbon filter pipe, and the tube shell is connected with nitrogen outlet for discharging nitrogen through the pipeline.

[0012] Preferably, the filter assembly further includes:

[0013] Primary filter, is connected with the steam-water separator through the pipeline;

[0014] Refrigerating machine, is connected with the primary filter through the pipeline;

[0015] Secondary filter, is connected with the refrigerating machine through the pipeline;

[0016] Tertiary filter, is connected with the secondary filter, the activated carbon filter pipe through the pipeline respectively;

[0017] Quaternary filter, is connected with the activated carbon filter pipe and the tube shell through the pipeline respectively.

[0018] Preferably, further include heater, for heating compressed air, the heater is arranged between the quaternary filter and the activated carbon filter pipe, and the pipe body of the heater is communicated with the activated carbon filter pipe, the quaternary filter.

[0019] Preferably, the top of the tube shell is connected with the total pipe, and the total pipe is provided with self-operated regulating valve and nitrogen concentration analyzer, and the total pipe is connected with first branch pipe and second branch pipe, the end of the first branch pipe is nitrogen outlet, and the end of the second branch pipe is oxygen-rich gas outlet.

[0020] Preferably, a flow meter is installed on the first branch pipe for monitoring the flow of the produced nitrogen.

[0021] Preferably, a gas conveying pipe is connected between the second branch pipe and the shell.

[0022] Preferably, a waste liquid outlet is further provided, which is in communication with the waste liquid outlets of the cold dryer, the steam-water separator, the first filter, the second filter, the third filter and the fourth filter.

[0023] Preferably, the compressed air inlet, the waste liquid outlet, the oxygen-rich gas outlet and the nitrogen gas outlet are located on the same side of the frame.

[0024] Preferably, the frame is provided with a control box.

[0025] Preferably, the frame is provided with lifting rings, which are located at the top four corners of the frame.

[0026] With respect to the above background, the cabinet type membrane separation nitrogen generating device integrates the air filtering and purifying assembly and the separation membrane assembly in the frame, the steam-water separator, the filter, the cold dryer and the activated carbon filter pipe process the compressed air, and the separation membrane in the separation membrane assembly separates the nitrogen and other gases in the compressed air according to the permeability difference of different gas molecules on the membrane material. Since the device has high integration degree and small overall volume, it can be directly placed in the protection area, nitrogen can be directly separated from the air source provided by the air compressor, and the nitrogen can be directly discharged into the protection area, without the need to build a device room, the nitrogen injection pipeline and the nozzle laying are reduced, the system cost is reduced, and the construction is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0028] Figure 1 The structure schematic view of the cabinet type membrane separation nitrogen generating device provided by the embodiments of the present application is shown in the figure.

[0029] Figure 2 The structure schematic view of the cabinet type membrane separation nitrogen generating device provided by the embodiments of the present application is shown in the figure.

[0030] Figure 3 The structure schematic view of the cabinet type membrane separation nitrogen generating device provided by the embodiments of the present application is shown in the figure.

[0031] Figure 4 The principle schematic view of the cabinet type membrane separation nitrogen making device is provided in the embodiments of the present application.

[0032] Figures 1 to 4 Reference signs: 1, pipe shell; 2, cold dryer; 3, steam-water separator; 4, first filter; 5, control box; 6, lifting ring; 7, third filter; 8, activated carbon filter pipe; 9, second filter; 10, fourth filter; 11, heater; 12, frame body; 13, self-operated regulating valve; 14, nitrogen concentration analyzer; 15, flow meter; 16, main pipe; 17, first branch pipe; 18, second branch pipe; 19, gas conveying pipe; A, waste liquid discharge port; B, compressed air inlet; C, oxygen-rich gas outlet; D, nitrogen outlet. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0034] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0035] The cabinet type membrane separation nitrogen making device provided by the present application has the characteristics of small volume, high nitrogen production efficiency, high integration, energy saving and environmental protection, and convenient construction. Due to the small volume and high integration, the device can be directly placed in the protection area or near the protection area, without the need to build a device room, reducing the laying of nitrogen injection pipelines and nozzles, and thus reducing the system cost.

[0036] Reference should also be made to Figures 1 to 4 The cabinet type membrane separation nitrogen making device provided by the present application includes a frame body 12, a filter assembly and a separation membrane assembly. The filter assembly is arranged in the frame body 12 and used for filtering treatment of compressed air. The filter assembly includes a steam-water separator 3 and an activated carbon filter pipe 8. The steam-water separator 3 is connected with a compressed air inlet B through a pipeline. The compressed air inlet B is used for introducing compressed air. The steam-water separator 3 is connected with the activated carbon filter pipe 8 through a pipeline. The separation membrane assembly is used for separating nitrogen in compressed air. The separation membrane assembly includes a pipe shell 1 and a separation membrane. The pipe shell 1 is fixedly arranged at the bottom of the frame body 12. The separation membrane is arranged in the pipe shell 1. The pipe shell 1 is in communication with the activated carbon filter pipe 8. The pipe shell 1 is connected with a nitrogen outlet D for discharging nitrogen through a pipeline.

[0037] In use, compressed air is introduced through the compressed air inlet B, the mist separator 3 removes most of the atomized liquid in the compressed air, then the compressed air enters the activated carbon filter tube 8 from the mist separator 3 through the pipeline, the activated carbon in the activated carbon filter tube 8 adsorbs the particulate matter in the compressed air, the filtered compressed air enters the tube shell 1 from the activated carbon filter tube 8, and the separation membrane in the separation membrane assembly separates nitrogen and other gases in the compressed air according to the permeability difference of different gas molecules on the membrane material, and the separated nitrogen is discharged through the nitrogen outlet D.

[0038] The filter assembly and the separation membrane assembly are integrally installed in the frame body 12, so that the pressure swing adsorption nitrogen making device is compact in structure and small in size, and can be directly placed in the protection area, the prepared nitrogen is directly introduced into the protection area through the nitrogen outlet D, the equipment room does not need to be built, the nitrogen injection pipeline and the nozzle are laid, the system cost is reduced, and the construction is convenient.

[0039] Please refer to Figures 1 to 4 The cabinet type membrane separation nitrogen making device further comprises a first filter 4, a cold dryer 2, a second filter 9, a third filter 7 and a fourth filter 10; the first filter 4 is connected with the mist separator 3 through a pipeline; the cold dryer 2 is connected with the first filter 4 through a pipeline; the second filter 9 is connected with the cold dryer 2 through a pipeline; the third filter 7 is connected with the second filter 9 and the activated carbon filter tube 8 through a pipeline respectively; and the fourth filter 10 is connected with the activated carbon filter tube 8 and the tube shell 1 through a pipeline respectively.

[0040] After the mist separator 3 removes most of the atomized liquid in the compressed air, the compressed air enters the first filter 4 from the mist separator 3, the first filter 4 removes larger particulate matter in the compressed air, then the compressed air enters the cold dryer 2 for cooling from the first filter 4, the cooled compressed air enters the second filter 9 and the third filter 7 for two-stage filtration in sequence, and the particulate matter and oil stains are filtered out, then the compressed air enters the activated carbon filter tube 8 from the third filter 7, the activated carbon in the activated carbon filter tube 8 can adsorb the cyanide in the compressed air which has not been filtered, after the adsorption treatment, the compressed air enters the fourth filter 10 from the activated carbon filter tube 8, the fourth filter 10 filters out the activated carbon particles that may be brought out from the activated carbon filter tube 8, and after the treatment is completed, the cleanliness of the compressed air has reached the requirement of the separation membrane. The compressed air enters the separation membrane assembly from the fourth filter 10, the separation membrane in the separation membrane assembly separates nitrogen and other gases in the compressed air, and the separated nitrogen is discharged through the nitrogen outlet D.

[0041] In this way, the compressed air can be sufficiently filtered, the cleanliness of the compressed air is improved, and the separated nitrogen gas does not carry dust, so that the electrical equipment in the protection area is effectively prevented from being polluted by the nitrogen gas carrying dust.

[0042] Please refer to Figures 1 to 4 The cabinet type membrane separation nitrogen generating device further comprises a heater 11, the heater 11 is used for heating compressed air, the heater 11 is arranged between the four-stage filter 10 and the activated carbon filter pipe 8, and the pipe body of the heater 11 is in communication with the activated carbon filter pipe 8 and the four-stage filter 10.

[0043] After the compressed air is filtered by the four-stage filter 10 and the cleanliness of the compressed air reaches the requirement of the separation membrane, the compressed air is heated by the heater 11, the compressed air is heated to the required temperature of the separation membrane, and the heated compressed air enters the pipe body of the separation membrane assembly from the pipe body of the heater 11. The heater 11 can be an electric heater 11, the electric heater 11 has the advantages of fast heating speed and accurate temperature control, and is convenient to use. The pipe body of the heater 11 and the pipe body of the activated carbon filter pipe 8 are combined and arranged in the vertical direction, which is beneficial to optimizing the structural design and reducing the overall volume of the nitrogen generating device, and the pipe body of the heater 11 and the pipe body of the activated carbon filter pipe 8 can function as a buffer tank in the nitrogen generating device.

[0044] Please refer to Figures 1 to 4 The top of the pipe shell 1 is connected with a main pipe 16, the main pipe 16 is provided with a self-operated regulating valve 13 and a nitrogen gas concentration analyzer 14, the main pipe 16 is connected with a first branch pipe 17 and a second branch pipe 18, and the end of the first branch pipe 17 is a nitrogen gas outlet D, and the end of the second branch pipe 18 is an oxygen-enriched gas outlet C.

[0045] The nitrogen gas separated from the compressed air by the separation membrane enters the main pipe 16 from the pipe shell 1, the nitrogen gas concentration analyzer 14 on the main pipe 16 detects the concentration of the nitrogen gas, when the concentration of the nitrogen gas is higher than or reaches a certain set value, the concentration of the nitrogen gas is qualified, when the concentration of the nitrogen gas is lower than the set value, the concentration of the nitrogen gas is unqualified, the qualified nitrogen gas enters the first branch pipe 17 from the main pipe 16 and is discharged to the protection area through the nitrogen gas outlet D at the end of the first branch pipe 17, and the unqualified nitrogen gas enters the second branch pipe 18 from the main pipe 16 and is discharged to the outside of the protection area through the oxygen-enriched gas outlet C at the end of the second branch pipe 18.

[0046] The self-operated regulating valve 13 can be arranged to stabilize the nitrogen gas pressure at 1.2Mpa. The self-operated regulating valve 13 is a kind of regulating valve which is driven by the pressure and temperature of the medium flowing through the valve as energy, does not need external power supply and secondary instrument, can reduce the daily maintenance workload, and is convenient to use.

[0047] In addition, the first branch pipe 17 and the second branch pipe 18 can be provided with control valves, respectively, and the first branch pipe 17 and the second branch pipe 18 are controlled by the control valves to be opened or closed, so that the discharge of the nitrogen gas and the oxygen-rich gas can be controlled.

[0048] Please refer to Figures 1 to 4 The first branch pipe 17 is provided with a flow meter 15 for monitoring the flow of the produced nitrogen gas, and by monitoring the flow of the qualified nitrogen gas, a proper number of the cabinet type membrane separation nitrogen generating devices can be selected and installed in the protection area according to the volume of the actual protection area, so that the fire in the protection area can be effectively prevented, and the waste of resources caused by the excessively large nitrogen injection flow can be avoided.

[0049] Please refer to Figures 1 to 4 The second branch pipe 18 is connected with the gas conveying pipe 19 which connects the second branch pipe 18 and the inside of the shell 1, and the other gases separated by the separation membrane can be discharged to the outside of the protection area through the second branch pipe 18. The unqualified nitrogen gas and the other gases separated by the separation membrane can be discharged through the second branch pipe 18, and by such a design, the pipelines can be arranged in a concentrated manner, and the integration of the nitrogen generating device can be improved.

[0050] Please refer to Figures 1 to 4 The cabinet type membrane separation nitrogen generating device further comprises a waste liquid discharge port A which is connected with the waste liquid ports of the cold dryer 2, the steam-water separator 3, the first filter 4, the second filter 9, the third filter 7 and the fourth filter 10, respectively. The waste liquid discharge port A is used for discharging the waste liquid and the waste gas generated by the cold dryer 2, the steam-water separator 3, the first filter 4, the second filter 9, the third filter 7 and the fourth filter 10, and the waste liquid and the waste gas are discharged to the outside of the protection area through the waste liquid discharge port A.

[0051] Please refer to Figures 1 to 4 The compressed air inlet B, the waste liquid discharge port A, the oxygen-rich gas outlet C and the nitrogen gas outlet D are located on the same side of the frame body 12, i.e., the directions of the compressed air inlet B, the waste liquid discharge port A, the oxygen-rich gas outlet C and the nitrogen gas outlet D are the same, and by such a design, the pipelines are distributed in a concentrated manner, and the installation and maintenance of the external pipe network can be facilitated.

[0052] Please refer to Figures 1 to 4 The frame body 12 is provided with a control box 5 which is fixed to the upper portion of the frame body 12, and the working of the steam-water separator 3, the cold dryer 2 and the heater 11 and the like can be controlled by the control box 5.

[0053] Please refer to Figures 1 to 4 The frame body 12 is provided with lifting rings 6 which are located at the top four corners of the frame body 12, and by the lifting rings 6 at the top of the frame body 12, the cabinet type membrane separation nitrogen generating device can be hoisted conveniently, so that the movement and installation of the cabinet type membrane separation nitrogen generating device can be realized.

[0054] The cabinet type membrane separation nitrogen generating device is convenient to construct, small in size, can generate at least 30m3 of nitrogen per hour, and can be used for nitrogen injection and oxygen control in a protection area with a capacity of no more than 1800m3.

[0055] When working, compressed air is introduced through the compressed air inlet B, and the steam-water separator 3 removes most of the atomized liquid in the compressed air; after the steam-water separator 3 removes most of the atomized liquid in the compressed air, the compressed air enters the primary filter 4 from the steam-water separator 3, and the primary filter 4 removes larger particles in the compressed air; then the compressed air enters the cold dryer 2 from the primary filter 4 for cooling, and after cooling, the compressed air enters the secondary filter 9 and the tertiary filter 7 in turn for two-stage filtration to filter out particles and oil stains; then the compressed air enters the activated carbon filter tube 8 from the tertiary filter 7, and the activated carbon in the activated carbon filter tube 8 can adsorb cyanide in the compressed air that has not been filtered; after adsorption treatment, the compressed air enters the fourth filter 10 from the activated carbon filter tube 8, and the fourth filter 10 filters out activated carbon particles that may be brought in from the activated carbon filter tube 8; after the treatment is completed, the cleanliness of the compressed air has reached the requirement of the separation membrane. The compressed air enters the separation membrane assembly from the fourth filter 10, and the separation membrane in the separation membrane assembly separates nitrogen and other gases in the compressed air; the separated nitrogen is discharged to the protection area through the nitrogen outlet D, thereby playing a fireproof role.

[0056] It should be noted that in the present specification, the relational terms such as first and second are used only to differentiate one entity from another, without necessarily requiring or implying any such actual relationship or order between these entities.

[0057] The principles and implementation modes of the present application are described by using specific examples in the present application, and the above description of the examples is only used to help understand the method and core idea of the present application. It should be pointed out that for ordinary skilled persons in the art, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A cabinet-type membrane separation nitrogen generator, characterized by, It comprises: a frame; a filter assembly arranged in the frame for filtering compressed air, the filter assembly comprising a water separator and an activated carbon filter tube, the water separator being connected with a compressed air inlet through a pipeline, the compressed air inlet being used for introducing compressed air, the water separator being connected with the activated carbon filter tube through a pipeline; a separation membrane assembly for separating nitrogen in compressed air, the separation membrane assembly comprising a tube shell and a separation membrane, the tube shell being fixedly arranged at the bottom of the frame, the separation membrane being arranged in the tube shell, the tube shell being in communication with the activated carbon filter tube, the tube shell being connected with a nitrogen outlet for discharging nitrogen through a pipeline.

2. The cabinet-type membrane separation nitrogen generator according to claim 1, characterized in that, The filter assembly further comprises: a primary filter connected with the water separator through a pipeline; a refrigeration dryer connected with the primary filter through a pipeline; a secondary filter connected with the refrigeration dryer through a pipeline; a tertiary filter connected with the secondary filter and the activated carbon filter tube through a pipeline respectively; a quaternary filter connected with the activated carbon filter tube and the tube shell through a pipeline respectively.

3. The cabinet-type membrane separation nitrogen generator according to claim 2, characterized in that, It further comprises a heater for heating compressed air, the heater being arranged between the quaternary filter and the activated carbon filter tube, the tube body of the heater being in communication with the activated carbon filter tube and the quaternary filter.

4. The cabinet-type membrane separation nitrogen generator according to claim 3, characterized in that, The top of the tube shell is connected with a main pipe, the main pipe being provided with a self-operated regulating valve and a nitrogen concentration analyzer, the main pipe being connected with a first branch pipe and a second branch pipe, the end of the first branch pipe being a nitrogen outlet, the end of the second branch pipe being an oxygen-enriched gas outlet.

5. The cabinet-type membrane separation nitrogen generator according to claim 4, characterized in that, A flowmeter is installed on the first branch pipe for monitoring the flow of the produced nitrogen.

6. The cabinet-type membrane separation nitrogen generator of claim 4, wherein, A gas conveying pipe is connected between the second branch pipe and the tube shell.

7. The cabinet-type membrane separation nitrogen generator of claim 4, wherein, It further comprises a waste liquid discharge port, the waste liquid discharge port being in communication with the waste liquid ports of the refrigeration dryer, the water separator, the primary filter, the secondary filter, the tertiary filter and the quaternary filter respectively.

8. The cabinet-type membrane separation nitrogen generator of claim 7, wherein, The compressed air inlet, the waste liquid discharge port, the oxygen-enriched gas outlet and the nitrogen outlet are located on the same side of the frame.

9. The cabinet-type membrane separation nitrogen generator of claim 1, wherein, The frame is provided with a control box.

10. The cabinet-type membrane separation nitrogen generator of claim 1, wherein, The frame is provided with lifting rings, the lifting rings being located at the top corners of the frame.

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