Nitrogen making device special for integrated retarder

Abstract

The utility model relates to the technical field of nitrogen making equipment, in particular to a nitrogen making device special for an integrated retarder. The nitrogen generation module is connected with the air compressor through a pipeline; the pressure multiplier is connected with the nitrogen generation module through a pipeline; the first electromagnetic valve is arranged on a pipeline between the pressure multiplier and the nitrogen generation module; the second electromagnetic valve is arranged on a pipeline between the pressure multiplier and the first electromagnetic valve; and the first storage tank is connected with the pressure multiplier through a pipeline. Ambient air is directly prepared into nitrogen through the air compressor and the nitrogen generation module, then the nitrogen pressure is increased to the range needed by maintenance through the pressure multiplier, and the nitrogen generation device is simple in overall structure, suitable for various retarder maintenance work area environments in a railway station area, capable of stably running for a long time and high in practicability. The unfavorable factors of carrying, purchasing, managing and the like of the original nitrogen cylinder pressure container are solved, the nitrogen is used and taken at any time according to operation requirements, and the operation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of nitrogen production equipment, in particular to an integrated nitrogen production device special for retarder. BACKGROUND

[0002] The retarder equipment is indispensable equipment in large and medium-sized marshalling stations, and the retarder maintenance work is the basis for daily management and use of the retarder equipment. High-purity nitrogen is an essential consumable for maintenance of various types of retarder equipment, and the nitrogen filling operation after maintenance of the retarder equipment is an indispensable link, which plays a crucial role in ensuring normal use of the retarder after maintenance and nitrogen filling and ensuring railway operation safety.

[0003] At present, the domestic retarder equipment is maintained by using pressure bottle nitrogen, but there are problems such as storage of pressure containers, regular purchase, inconvenience of transportation, insufficient nitrogen in the bottle affecting normal maintenance progress and the like. CONTENT OF THE UTILITY MODEL

[0004] The application aims to at least solve one of the technical problems in the prior art or related art that the domestic retarder equipment is maintained by using pressure bottle nitrogen, but there are problems such as storage of pressure containers, regular purchase, inconvenience of transportation, insufficient nitrogen in the bottle affecting normal maintenance progress and the like.

[0005] Therefore, the application provides an integrated nitrogen production device special for retarder, which directly produces nitrogen from ambient air through an air compressor and a nitrogen production module, and then increases the pressure of the nitrogen to the range required for maintenance through a pressure multiplier. The overall structure of the nitrogen production device is simple, is suitable for various retarder maintenance work areas in the railway station area, can stably operate for a long time, solves the problems of original nitrogen bottle pressure container handling, purchase, management and the like, and improves the operation efficiency by taking nitrogen according to the operation demand.

[0006] According to the integrated nitrogen production device special for retarder provided by the application, the device comprises an air compressor, a nitrogen production module connected with the air compressor through a pipeline, a pressure multiplier connected with the nitrogen production module through a pipeline, a first electromagnetic valve arranged on the pipeline between the pressure multiplier and the nitrogen production module, a second electromagnetic valve arranged on the pipeline between the pressure multiplier and the first electromagnetic valve, and a first storage tank connected with the pressure multiplier through a pipeline.

[0007] Optionally, the nitrogen production module comprises a first absorber, a second absorber, a second storage tank and a three-state five-way valve, the air compressor is connected with an air inlet of the three-state five-way valve through a pipeline, an air outlet of the three-state five-way valve is connected with air inlets of the first absorber and the second absorber through pipelines respectively, air outlets of the first absorber and the second absorber are connected with an air inlet of the second storage tank through pipelines respectively, and an air outlet of the second storage tank is connected with the pressure multiplier through a pipeline.

[0008] Optionally, two one-way valves are arranged in parallel on the pipeline of the gas outlet of the first absorber and the second absorber respectively, and the two one-way valves are opposite in the direction of conduction.

[0009] Optionally, the second electromagnetic valve is a high-frequency electromagnetic valve.

[0010] Optionally, a pressure sensor is arranged on the pipeline of the second electromagnetic valve.

[0011] Optionally, a concentration analysis module is arranged on the output pipeline of the nitrogen production module.

[0012] Optionally, an electronic cold dryer is arranged on the output pipeline of the air compressor.

[0013] Optionally, a first filter is arranged on the output pipeline of the air compressor.

[0014] Optionally, a second filter and a third filter are arranged in series on the input pipeline of the nitrogen production module.

[0015] Optionally, a fourth filter is arranged on the output pipeline of the nitrogen production module.

[0016] The above technical solution has at least the following advantages or beneficial effects:

[0017] The integrated nitrogen production device for the retarder has the following advantages: the air compressor and the nitrogen production module are used to directly produce nitrogen gas from the ambient air, and the pressure of the nitrogen gas is increased to the required range by the pressure multiplier, so that the overall structure of the nitrogen production device is simple, the device is suitable for various maintenance work environments of the retarder in the railway station area, and the device can be stably operated for a long time. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the present application, the drawings needed in the embodiments will be briefly introduced as follows: obviously, other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0019] Figure 1 The structure of the integrated nitrogen production device for the retarder is shown.

[0020]

Explanation of reference signs

[0021] 1. Air compressor, 11. First filter, 2. Nitrogen making module, 21. First absorber, 22. Second absorber, 23. Second storage tank, 24. Three-state five-way valve, 25. One-way valve, 26. Second filter, 27. Third filter, 28. Fourth filter, 3. Pressure multiplier, 31. First electromagnetic valve, 32. Second electromagnetic valve, 33. Pressure sensor, 4. First storage tank, 5. Concentration analysis module, 6. Electronic cold dryer, 7. Exhaust fan, 8. Power switch. DETAILED DESCRIPTION

[0022] In order to better explain the present application, so as to be understood, the present application is described in detail below by specific embodiments in combination with the drawings.

[0023] As described above, the nitrogen filling pressure requirement of each type of retarder is 0.7-1.1 MP, and the output nitrogen pressure of the existing nitrogen making machine equipment on the market is only 0.3-0.6 MP, which cannot meet the demand of the nitrogen filling operation of the retarder equipment. Therefore, at present, the domestic retarder equipment is maintained by using pressure bottle nitrogen, but there are problems such as storage of pressure vessels, regular purchase, inconvenience of transportation, insufficient nitrogen in the bottle affecting normal maintenance progress, etc.

[0024] In order to at least solve one of the technical problems existing in the prior art or related art, the embodiments of the present application provide an integrated nitrogen making device special for retarder, comprising: an air compressor; a nitrogen making module connected with the air compressor through a pipeline; a pressure multiplier connected with the nitrogen making module through a pipeline; a first electromagnetic valve arranged on the pipeline between the pressure multiplier and the nitrogen making module; a second electromagnetic valve arranged on the pipeline between the pressure multiplier and the first electromagnetic valve; and a first storage tank connected with the pressure multiplier through a pipeline. The ambient air is directly prepared into nitrogen by the air compressor and the nitrogen making module, and then the nitrogen pressure is increased to the range required for maintenance by the pressure multiplier. The overall structure of the nitrogen making device is simple, suitable for various retarder maintenance work area environments in railway station area, can be stably operated for a long time, solves the unfavorable factors such as handling, purchase and management of the original nitrogen cylinder pressure container, and the nitrogen is taken according to the operation demand, which improves the operation efficiency.

[0025] An engine hood support device according to some embodiments provided by the present application will be described below with reference to the accompanying drawings.

[0026] Referring to Figure 1The embodiment of the application provides a special nitrogen production device for integrated retarder, comprising: an air compressor 1; a nitrogen production module 2 connected with the air compressor 1 through a pipeline; a pressure multiplier 3 connected with the nitrogen production module 2 through a pipeline; a first electromagnetic valve 31 arranged on the pipeline between the pressure multiplier 3 and the nitrogen production module 2; a second electromagnetic valve 32 arranged on the pipeline between the pressure multiplier 3 and the first electromagnetic valve 31; and a first storage tank 4 connected with the pressure multiplier 3 through a pipeline.

[0027] The air compressor 1 sucks in and compresses air in the external environment, and provides stable raw materials for the subsequent nitrogen production process. The air compressor 1 can adopt a full-oil-free variable frequency compressor, can provide a pure gas source without oil pollution, and is widely used in various industries; the motor adopts an optimized design to ensure that the compressor realizes high power, high efficiency, low energy consumption and stable performance; the piston ring adopts a small friction coefficient and can be self-lubricated without lubricating oil, thereby ensuring that the gas source is not secondarily polluted; the cylinder adopts surface hardening treatment, reduces thickness and weight, effectively improves compactness and wear resistance and reduces friction, and effectively prolongs the service life; the inlet and outlet valves adopt a rolling grinding treatment and a sound reduction treatment design, so that the gas volume efficiency is effectively improved, and the working noise is greatly reduced; an overload protection design is adopted to ensure that the air compressor 1 runs stably.

[0028] The nitrogen production module 2 is used for extracting nitrogen from compressed air through a specific separation technology, the nitrogen production module 2 is tightly connected with the air compressor 1 through a pipeline, and it is ensured that the compressed air can continuously and stably enter the nitrogen production process.

[0029] The pressure multiplier 3 is used for further increasing the pressure of the nitrogen gas output from the nitrogen production module 2 to meet the demand of various types of retarders for high-pressure nitrogen. Since the air compressor 1 can only make the nitrogen production module 2 provide nitrogen gas with a pressure of 0.3-0.6 MP, and various types of retarders require nitrogen gas with a pressure of 0.7-1.1 MP, the pressure of the nitrogen gas output from the nitrogen production module 2 is increased to 0.7-1.1 MP through the pressure multiplier 3.

[0030] The first electromagnetic valve 31 and the second electromagnetic valve 32 cooperate with each other to play a rectifying role and are used for controlling the flow of nitrogen. When the first electromagnetic valve 31 is closed, the nitrogen is enclosed in the pipeline, so that the pressure thereof rises, and the pressure of the nitrogen gas output from the nitrogen production module 2 can be increased to 0.6 MP; then, the first electromagnetic valve 31 is opened, and the second electromagnetic valve 32 is controlled to be opened and closed uninterruptedly, the nitrogen gas output from the nitrogen production module 2 is cut into multiple segments and provided to the pressure multiplier 3, and this rectifying mode can improve the utilization efficiency of the input nitrogen gas of the pressure multiplier 3, so that the pressure of the output nitrogen gas can be as high as 1.2 MP.

[0031] The first storage tank 4 is used for storing high-pressure nitrogen gas. When the air brake equipment needs nitrogen gas, the first storage tank 4 can quickly release the nitrogen gas to meet the instant demand for maintenance, and solve the problems of the original nitrogen cylinder pressure container, such as transportation, purchase, management and the like. The nitrogen gas is taken according to the operation demand, and the operation efficiency is improved.

[0032] In an illustrative embodiment, the nitrogen production module 2 comprises a first absorber 21, a second absorber 22, a second storage tank 23 and a three-state five-way valve 24. The air compressor 1 is connected to the gas inlet of the three-state five-way valve 24 through a pipeline. The gas outlets of the three-state five-way valve 24 are connected to the gas inlets of the first absorber 21 and the second absorber 22 through pipelines respectively. The gas outlets of the first absorber 21 and the second absorber 22 are connected to the gas inlet of the second storage tank 23 through pipelines respectively. The gas outlet of the second storage tank 23 is connected to the pressure multiplier 3 through a pipeline.

[0033] The first absorber 21 and the second absorber 22 are used to absorb oxygen and other impurities in the compressed air using a specific adsorbent, such as molecular sieve, activated carbon and the like, so as to separate nitrogen. The three-state five-way valve 24 is used to switch the flow direction of the gas during the nitrogen production process. The three-state five-way valve 24 comprises one gas inlet and two gas outlets. By controlling the working state of the three-state five-way valve 24, the compressed air can be made to enter the first absorber 21 and the second absorber 22 respectively. The second storage tank 23 is used to store the nitrogen gas produced from the first absorber 21 and the second absorber 22.

[0034] The nitrogen production process of the nitrogen production module 2 is that the air compressor 1 compresses the air in the environment and sends it into the three-state five-way valve 24 through a pipeline. The three-state five-way valve 24 distributes the compressed air to the first absorber 21 and the second absorber 22 according to the needs of the nitrogen production process. The first absorber 21 and the second absorber 22 absorb oxygen and other impurities through the internal adsorbent, so as to separate nitrogen. The produced nitrogen gas enters the second storage tank 23 for storage.

[0035] In an illustrative embodiment, two one-way valves 25 are respectively arranged in parallel on the pipelines of the gas outlets of the first absorber 21 and the second absorber 22. The two one-way valves 25 have opposite conduction directions. The one-way valves 25 arranged in this way can play a pressure equalizing role. When the pressures of the gas outlets of the first absorber 21 and the second absorber 22 are unbalanced, the parallel one-way valves 25 can provide an additional flow path, which can disperse and alleviate the pressure imbalance, so as to maintain the pressure stability of the whole system.

[0036] In an exemplary embodiment, the second electromagnetic valve 32 is a high-frequency electromagnetic valve. The high-speed electromagnetic valve can accept millisecond response opening and closing, which can improve the control accuracy of the nitrogen segment size and supply rate. By continuously controlling the opening and closing of the second electromagnetic valve 32, the nitrogen output by the nitrogen production module 2 can be cut into multiple short and continuous segments, so that the pressure multiplier 3 reaches the optimal working state.

[0037] In an exemplary embodiment, a pressure sensor 33 is provided on the pipeline of the second electromagnetic valve 32. The pressure sensor 33 is used to detect the pressure between the input and output ends of the second electromagnetic valve 32. By monitoring the pressure at both ends of the second electromagnetic valve 32, the opening and closing frequency and duration of the second electromagnetic valve 32 can be adjusted, thereby accurately controlling the nitrogen segment size and supply rate.

[0038] In an exemplary embodiment, a concentration analysis module 5 is provided on the output pipeline of the nitrogen production module 2. The concentration analysis module 5 can use an ion flow nitrogen analyzer, which is a high-precision real-time display nitrogen analyzer composed of an ion flow nitrogen sensor and a high-performance ARM microprocessor, and is suitable for accurate testing of nitrogen concentration. Through the concentration analysis module 5, it can be determined whether the nitrogen output by the nitrogen module 2 meets the requirements. If it does not meet the requirements, necessary measures can be taken, such as re-preparing nitrogen or adjusting the working parameters of the nitrogen production module 2, to ensure that the output nitrogen quality meets the standards.

[0039] In an exemplary embodiment, an electronic cold dryer 6 is provided on the output pipeline of the air compressor 1. The electronic cold dryer 6 is used to reduce the moisture content in the compressed air. When the high-temperature compressed air is output from the air compressor 1 and enters the electronic cold dryer 6, the compressed air is first subjected to cooling and temperature reduction treatment, so that the water vapor in it condenses into liquid droplets. Subsequently, these condensed liquid droplets are discharged through the automatic drainage system of the electronic cold dryer 6, so as not to affect the subsequent nitrogen preparation.

[0040] In an exemplary embodiment, a first filter 11 is provided on the output pipeline of the air compressor 1. The first filter 11 is used to remove impurities such as dust and particles originally present in the atmosphere, thereby ensuring that the compressed air entering the nitrogen production module 2 is clean.

[0041] In an exemplary embodiment, a second filter 26 and a third filter 27 are provided in series on the input pipeline of the nitrogen production module 2. The second filter 26 and the third filter 27 are used to filter impurities and water vapor in the compressed air before entering the nitrogen production module 2. By arranging the second filter 26 and the third filter 27 in series, multi-stage filtration of the compressed air can be achieved, gradually removing impurities and water vapor, thereby improving the filtration effect and ensuring that the compressed air entering the nitrogen production module 2 meets the required purity standards.

[0042] In an exemplary embodiment, a fourth filter 28 is provided on the output pipeline of the nitrogen production module 2. The fourth filter 28 is used to filter the nitrogen gas output by the nitrogen production module 2, removing impurities and water vapor. During the process of producing nitrogen, water vapor is always produced due to temperature problems (condensation), and passing through the fourth filter 28 can improve the purity and quality of the nitrogen gas.

[0043] Further, air pressure gauges are provided on the output pipelines of the air compressor 1, the nitrogen production module 2, and the first storage tank 4, respectively, for measuring and displaying the pressure values in the pipelines. By monitoring the pressure values, the operator can timely discover and handle abnormal situations such as overpressure or low pressure, ensuring the safe operation of the system; at the same time, understanding the pressure distribution in the pipeline helps the operator to adjust system parameters such as the output pressure of the air compressor 1, the working pressure of the nitrogen production module 2, etc., to optimize the performance of the system.

[0044] Further, the nitrogen production device further comprises: an exhaust fan 7 for cooling the air compressor 1; a power switch 8 for providing power to each module of the device; an electronic control module including a timing Android touch master control machine, a power supply, a circuit control unit, a control execution switch, a sensing detection unit, etc.; a display panel including an Android touch display screen and an emergency stop switch, for display and operation control of the nitrogen production device.

[0045] In the description of the present application, it should be understood that the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0046] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "over", "above" and "on top of" the second feature, which can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature is "under", "below" and "underneath" the second feature, which can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0048] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "embodiment", "exemplary embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the skilled person in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0049] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the ordinary skilled person in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. An integrated nitrogen generator specifically designed for deceleration tops, characterized in that, The utility model relates to a nitrogen production system, including: Air compressor (1); Nitrogen production module (2) is connected with air compressor (1) through pipeline; Pressure multiplier (3) is connected with nitrogen production module (2) through pipeline; First electromagnetic valve (31) is arranged on the pipeline between pressure multiplier (3) and nitrogen production module (2); Second electromagnetic valve (32) is arranged on the pipeline between pressure multiplier (3) and first electromagnetic valve (31); First storage tank (4) is connected with pressure multiplier (3) through pipeline.

2. The integrated nitrogen generation system for an air brake system as defined in claim 1 wherein, Nitrogen production module (2) includes: first absorber (21), second absorber (22), second storage tank (23) and triode five-way valve (24), air compressor (1) is connected with the gas inlet of triode five-way valve (24) through pipeline, and the gas outlet of triode five-way valve (24) is connected with the gas inlet of first absorber (21) and second absorber (22) respectively through pipeline; The gas outlet of first absorber (21) and second absorber (22) is connected with the gas inlet of second storage tank (23) through pipeline respectively, and the gas outlet of second storage tank (23) is connected with pressure multiplier (3) through pipeline.

3. The integrated nitrogen generation system for an air brake system of claim 2, wherein, Two check valves (25) are arranged in parallel on the pipeline of the gas outlet of first absorber (21) and second absorber (22) respectively, and the conduction direction of two check valves (25) is opposite.

4. The integrated nitrogen generation system for an air brake system of claim 1, wherein, Second electromagnetic valve (32) is high-frequency electromagnetic valve.

5. The integrated nitrogen generation system for an air brake system of claim 1, wherein, Pressure sensor (33) is arranged on the pipeline of second electromagnetic valve (32).

6. The integrated nitrogen generation system for an air brake system of claim 1, wherein, Concentration analysis module (5) is arranged on the output pipeline of nitrogen production module (2).

7. The integrated nitrogen generation system for an air brake system of claim 1, wherein, Electronic cold dryer (6) is arranged on the output pipeline of air compressor (1).

8. The integrated nitrogen generation system for an air brake system of claim 1, wherein, First filter (11) is arranged on the output pipeline of air compressor (1).

9. The integrated nitrogen generation system for an air brake system of claim 1, wherein, Second filter (26) and third filter (27) are arranged in series on the input pipeline of nitrogen production module (2).

10. The integrated nitrogen generation system for an air brake system of claim 1, wherein, Fourth filter (28) is arranged on the output pipeline of nitrogen production module (2).

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