Normal-temperature water pump pipeline of air separation precooling system

Abstract

The utility model belongs to the technical field of air separation unit precooling equipment, and relates to an air separation precooling system normal-temperature water pump pipeline which comprises an air compressor, the air compressor is connected with an air cooling tower through a high-pressure air pipeline, and a normal-temperature water pipeline is arranged on one side of the middle of the air cooling tower and connected to a water pump pipeline. A circulating water pump is arranged on the circulating water supply pipeline; a water tank fan is arranged at the top of the circulating water tank; a water tank filler is arranged in the middle of the circulating water tank; a circulating water return pipeline is arranged on one side of the middle of the circulating water tank; the circulating water return pipeline is connected to the bottom of the air cooling tower. By means of the efficient circulating water flow system, air is precooled and treated, the cooling efficiency of the air separation technology is improved, and meanwhile the energy-saving and environment-friendly requirements are met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to air separation unit precooling equipment technical field, concretely relates to a kind of air separation precooling system normal temperature water pump pipeline. BACKGROUND

[0002] Air separation unit, also known as air separation device, is an important equipment in the industry, and is widely used in the preparation of industrial gases such as oxygen, nitrogen, argon and other industrial gases in chemical industry, metallurgy and electronics industry. The normal operation of air separation unit cannot be separated from efficient precooling system. The air cooling in the precooling process is completed by air cooling tower. The air cooling tower uses mixed heat exchange method to cool high-temperature compressed air by circulating water.

[0003] If high-temperature compressed air cannot be cooled in time and effectively, it will directly cause negative effects on the subsequent air purification unit (such as adsorption dryer, filter), resulting in reduced purification efficiency, equipment failure, and even causing the shutdown of the entire air separation unit, which brings great loss to the production process.

[0004] In order to maintain the stable supply of circulating water in the air cooling tower, the precooling system usually configures normal temperature water pump to deliver circulating water to the air cooling tower. In the current industry, in order to ensure the continuous and uninterrupted supply of normal temperature water, a double pump design scheme of one active and one standby is generally used. In the case of normal operation of normal temperature water pump, the standby pump is in standby state. When the main pump fails or needs maintenance, the standby pump is quickly put into operation, so as to ensure the reliability and continuity of the system.

[0005] In addition, under the complex working conditions of high temperature or long time operation, the precooling system may still affect the operation of the whole machine due to insufficient circulating water or decreased heat exchange efficiency. How to further optimize the design of precooling system and improve its operation efficiency and reliability is one of the key directions of current field research and innovation. Therefore, a normal temperature water pump pipeline for air separation precooling system is proposed. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a normal temperature water pump pipeline for air separation precooling system, which has the function of stable supply of circulating water in air cooling tower, and solves the problem of insufficient circulating water or decreased heat exchange efficiency in the prior art affecting the operation of the whole machine.

[0007] In order to achieve the above object, the utility model adopts the technical scheme, the utility model provides a kind of air separation precooling system normal temperature water pump pipeline, including air compressor, the air compressor is connected air cooling tower by high pressure air pipeline, air cooling tower middle side is provided with normal temperature water pipeline, normal temperature water pipeline is connected to water pump pipeline, water pump pipeline is provided with normal temperature water pump, water pump pipeline is connected to circulating water supply pipeline, circulating water supply pipeline is connected to circulating water pool, circulating water supply pipeline is provided with circulating water pump, circulating water pool top is provided with pool fan, circulating water pool middle part is provided with pool filler, circulating water pool middle side is provided with circulating water return pipeline, circulating water return pipeline is connected to air cooling tower bottom.

[0008] As preferred, the air cooling tower top is provided with low-temperature compressed air pipeline.

[0009] As preferred, the air cooling tower top side is provided with chilled water pipeline, and the chilled water pipeline is provided with chilled water control valve.

[0010] As preferred, the normal temperature water pipeline is provided with normal temperature water control valve.

[0011] As preferred, the number of water pump pipelines is two in parallel arrangement, and the number of normal temperature water pumps is two corresponding to the number of water pump pipelines.

[0012] As preferred, the circulating water return pipeline is provided with return valve and return pool valve.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that,

[0014] 1. The utility model realizes the precooling and treatment of air through efficient circulating water flow system, improves the cooling efficiency of air separation process, and meets the requirements of energy saving and environmental protection at the same time.

[0015] 2. The utility model has the function of stable supply of circulating water in air cooling tower, and solves the problem that the operation of the whole machine is affected due to insufficient circulating water or decreased heat exchange efficiency in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be simply introduced as follows. Obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0017] Figure 1 It is a structure schematic view of a kind of air separation precooling system normal temperature water pump pipeline;

[0018] In the above figure, 1. air compressor, 2. high-pressure air pipeline, 3. air cooling tower, 4. low-temperature compressed air pipeline, 5. chilled water pipeline, 6. normal temperature water pipeline, 7. water pump pipeline, 8. normal temperature water pump, 9. return valve, 10. circulating water pool, 11. circulating water pump, 12. circulating water supply pipeline, 13. return pool valve, 14. circulating water return pipeline, 15. pool fan, 16. pool filler. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1, as Figure 1 As shown, a normal-temperature water pump pipeline for an air separation precooling system includes an air compressor 1. Air compressor 1 compresses atmospheric air to a high-pressure state, increasing the air's density and facilitating subsequent separation and processing of the gas. The air compressor 1 is connected to an air-cooling tower 3 via a high-pressure air pipeline 2. The air-cooling tower 3 uses circulating water to cool the high-temperature compressed air, facilitating subsequent gas purification and separation processes, improving cooling efficiency in the air separation process, and reducing the risk of equipment failure. The high-pressure air pipeline 2 transports the compressed high-pressure air to the air-cooling tower 3, ensuring that the compressed air enters the cooling system efficiently and quickly, improving overall processing efficiency.

[0022] A normal-temperature water pipe 6 is installed on one side of the middle of air-cooling tower 3. This pipe transports normal-temperature water to air-cooling tower 3, supporting its cooling function and providing a continuous and stable water source. This pipe is connected to a water pump pipe 7, which is equipped with a normal-temperature water pump 8. This pump delivers normal-temperature water to air-cooling tower 3, ensuring an adequate supply of cooling water. This pump pipe 7 is connected to a circulating water supply pipe 12, which is used to deliver water.

[0023] The circulating water supply pipeline 12 is connected to the circulating water pool 10, which stores the cooling circulating water to provide a stable water source. The circulating water pump 11 is arranged on the circulating water supply pipeline 12, which pumps the circulating water from the circulating water pool 10 to the air cooling tower 3 and realizes recycling, improving the operation efficiency and enabling the pre-cooling system to operate in an efficient state. The water pool fan 15 is arranged at the top of the circulating water pool 10, which promotes the air circulation of the circulating water pool 10, helps the heat exchange between water and air, enhances the heat dissipation capacity of the circulating water pool 10, and improves the cooling efficiency of the circulating water.

[0024] The circulating water return pipeline 14 is arranged at one side of the middle part of the circulating water pool 10 and is connected to the bottom of the air cooling tower 3. The circulating water return pipeline 14 guides the water returned from the air cooling tower 3 back to the circulating water pool 10, realizing efficient utilization of the circulating water and improving the economy.

[0025] The specific design of the above key components will be described below:

[0026] The low-temperature compressed air pipeline 4 is arranged at the top of the air cooling tower 3. The low-temperature compressed air pipeline 4 guides the low-temperature air for subsequent process treatment, improving the quality of the product and reducing energy consumption.

[0027] The chilled water pipeline 5 is arranged at one side of the top of the air cooling tower 3, and the chilled water control valve is arranged on the chilled water pipeline 5 to control the opening and closing of the chilled water pipeline 5. The chilled water pipeline 5 is used to inject chilled water to further reduce the cooling temperature and provide additional cooling effect to meet different working condition requirements.

[0028] The normal temperature water control valve is arranged on the normal temperature water pipeline 6 to control the opening and closing of the normal temperature water pipeline 6.

[0029] The number of water pump pipelines 7 is two and arranged in parallel, and the number of normal temperature water pumps 8 is two corresponding to the number of water pump pipelines 7. When one normal temperature water pump 8 fails or needs maintenance, the other normal temperature water pump 8 can continue to work, ensuring the continuity and stability of water supply. The reliability is greatly improved. When one pump fails, the other can immediately take over its work to avoid losses caused by shutdown. Since the two pumps can work together, the burden on a single pump is reduced, which helps to prolong the service life of the equipment. Under different load requirements, the system can select one or two pumps to operate according to the actual situation, thereby realizing energy efficiency optimization.

[0030] The backwater valve 9 controls the amount of circulating water flowing back from the air cooling tower 3. The backwater can be adjusted according to actual demand to ensure stable operation under different working conditions. The backwater pool valve 13 controls the water level of the circulating water pool 10 and controls the opening and closing of the end of the circulating water backwater pipeline 14. The backwater is implemented when the water quantity is kept within a reasonable range to realize stable circulating water supply.

[0031] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt the conventional types in the prior art, the circuit connection adopts the conventional connection mode in the prior art, and the contents not described in detail in the specification belong to the prior art known by the person skilled in the art.

[0032] The above is only a preferred embodiment of the utility model, and does not limit other forms of the utility model. Any person skilled in the art can change or modify the above disclosed technical content into equivalent embodiments applied to other fields. However, any simple modification, equivalent change and modification made on the basis of the technical essence of the utility model to the above embodiments still belong to the protection scope of the technical scheme of the utility model.

Claims

1. A normal temperature water pump pipeline for an air separation precooling system, characterized in that: It includes an air compressor, which is connected to an air cooling tower through a high-pressure air pipe. A normal temperature water pipe is provided on one side of the middle of the air cooling tower. The normal temperature water pipe is connected to a water pump pipe. A normal temperature water pump is provided on the water pump pipe. The water pump pipe is connected to a circulating water supply pipe. The circulating water supply pipe is connected to a circulating water pool. A circulating water pump is provided on the circulating water supply pipe. A pool fan is provided on the top of the circulating water pool. A pool filler is provided in the middle of the circulating water pool. A circulating water return pipe is provided on one side of the middle of the circulating water pool. The circulating water return pipe is connected to the bottom of the air cooling tower.

2. The normal temperature water pump pipeline of the air separation precooling system according to claim 1 is characterized in that: A low-temperature compressed air pipeline is provided on the top of the air cooling tower.

3. The normal temperature water pump pipeline of the air separation precooling system according to claim 1 is characterized in that: A chilled water pipeline is provided on one side of the top of the air cooling tower, and a chilled water control valve is provided on the chilled water pipeline.

4. The normal temperature water pump pipeline of the air separation precooling system according to claim 1 is characterized in that: The normal temperature water pipeline is provided with a normal temperature water control valve.

5. The normal temperature water pump pipeline of the air separation precooling system according to claim 1 is characterized in that: The number of the water pump pipelines is 2 and they are arranged in parallel, and the number of normal temperature water pumps corresponds to the number of water pump pipelines set to 2.

6. The normal temperature water pump pipeline of the air separation precooling system according to claim 1 is characterized in that: The circulating water return pipe is provided with a return valve and a return pool valve.

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