阅读说明：本技术 一种空分设备的冷却水循环过滤装置 (Air separation plant's cooling water circulation filter equipment ) 是由 林定标 陈辉 王培正 于 2019-11-28 设计创作，主要内容包括：本发明提供了一种空分设备的冷却水循环过滤装置,属于过滤装置技术领域。它解决了现有空分设备的冷却水过滤耗时长等技术问题。空分设备上分别设有冷却水的进水口和出水口；冷却水循环过滤装置包括水冷塔、循环水池和石英砂过滤器,空分设备的出水口与水冷塔的进口通过管道一相连接,水冷塔的出口与循环水池相连通,循环水池的出口与石英砂过滤器的进口通过管道二相连通,石英砂过滤器的出口于空分设备的进水口通过管道三相连通；管道二上还设有循环水泵。本发明中增设了石英砂过滤器,利用粒状滤料层截留的粒径较大的悬浮颗粒形成滤膜,达到净化水质的效果,可使空分设备持续稳定长时间运行,不需要频繁清洗。(The invention provides a cooling water circulating and filtering device of an air separation plant, and belongs to the technical field of filtering devices. It has solved the cooling water of current air separation plant and has filtered long waiting technical problem of time consuming. The air separation equipment is respectively provided with a water inlet and a water outlet of cooling water; the cooling water circulating and filtering device comprises a water cooling tower, a circulating water tank and a quartz sand filter, wherein a water outlet of the air separation plant is connected with an inlet of the water cooling tower through a first pipeline, an outlet of the water cooling tower is communicated with the circulating water tank, an outlet of the circulating water tank is communicated with an inlet of the quartz sand filter through a second pipeline, and an outlet of the quartz sand filter is communicated with a water inlet of the air separation plant through a third pipeline; and a circulating water pump is also arranged on the second pipeline. The quartz sand filter is additionally arranged, and suspended particles with larger particle sizes intercepted by the granular filter material layer are utilized to form the filter membrane, so that the effect of purifying water quality is achieved, the air separation equipment can continuously and stably run for a long time, and frequent cleaning is not needed.)

1. A cooling water circulating and filtering device of an air separation plant is characterized in that an air separation plant (1) is respectively provided with a cooling water inlet (1a) and a cooling water outlet (1 b); the cooling water circulation filtering device is characterized by comprising a water cooling tower (2), a circulation water tank (3) and a quartz sand filter (4), wherein a water outlet (1b) of an air separation plant (1) is connected with an inlet of the water cooling tower (2) through a first pipeline (5), an outlet of the water cooling tower (2) is communicated with the circulation water tank (3), an outlet of the circulation water tank (3) is communicated with an inlet of the quartz sand filter (4) through a second pipeline (6), and an outlet of the quartz sand filter (4) is communicated with a water inlet (1a) of the air separation plant (1) through a third pipeline (7); and a circulating water pump (8) is also arranged on the second pipeline (6).

2. The cooling water circulation filtering device of the air separation plant according to claim 1, characterized in that the water cooling tower (2) is arranged above the circulation water tank (3), the outlet of the water cooling tower (2) is connected to the upper side of the circulation water tank (3) through a pipeline four (9), and the outlet of the circulation water tank (3) is positioned at a position close to the bottom and at one side of the circulation water tank (3).

3. The air separation plant's cooling water circulation filter equipment according to claim 2, characterized in that, this cooling water circulation filter equipment corresponds multiunit air separation plant (1), pipeline one (5) divide into multiunit branch pipe one (10) through many through-connections, pipeline three (7) divide into multiunit branch pipe two (11) through many through-connections, the quantity of branch pipe one (10) with the quantity of branch pipe two (11) the same and with the quantity of air separation plant (1) is corresponding, branch pipe one (10) and branch pipe two (11) respectively one-to-one air separation plant's (1) delivery port (1b) and water inlet (1 a).

4. The cooling water circulation filtering device of the air separation plant according to claim 3, characterized in that a third branch pipe (12) is branched from the second pipe (6), the third branch pipe (12) is directly communicated with the third pipe (7), and control valves (13) are arranged on the third branch pipe (12), the second pipe (6) at positions between the third branch pipe (12) and the quartz sand filter (4) and the third pipe (7) at positions between the third branch pipe (12) and the quartz sand filter (4).

5. The cooling water circulation filtering device of the air separation plant according to claim 1, 2, 3 or 4, characterized in that the quartz sand filter (4) is filled with shallow quartz sand, the second pipe (6) is connected to one side of the quartz sand filter (4) near the upper end, and the third pipe (7) is connected to the bottom of the quartz sand filter (4).

Technical Field

The invention belongs to the technical field of filling of low-temperature gas cylinders, and relates to a cooling water circulating and filtering device of an air separation device.

Background

The heat generated when each type of compressor in the existing air separation equipment operates and compresses is cooled by cooling water, and the cooling water is recycled. After circulating water is used all the year round, various bacteria, microorganisms, organic matters, suspended matters and the like are easy to breed in the water tank and the cooler, and the air separation equipment needs to regularly stop to clean the cooler and the water tank, so that the normal operation of air separation is influenced. And cooling water circulating system among the air separation plant generally exposes in the external world, and solid pollution is comparatively serious in enterprises such as metallurgy and coal chemical industry, when needs use the circulating water, generally sets up the solid impurity of water filter detach aquatic, avoids solid impurity to influence the normal work of air separation plant internal system, also can avoid solid impurity to suffer the pollution to air separation plant subsequent system simultaneously. When mechanical solid impurities in the water filter are deposited to a certain degree on the surface of the filter layer, the resistance of water passing through a filter screen in the water filter is continuously increased, and the normal operation of the air separation equipment is influenced. In this case, the water filter needs to be cleaned, which takes a long time.

Chinese patent (publication number: CN 205730590U; publication date: 2016-11-30) discloses a water filtering device of an air separation system, which comprises a circulating water main pipe; an inlet pressure gauge is arranged at the inlet of the circulating water main pipe, the circulating water main pipe is respectively provided with a first branch and a second branch, the first branch is provided with a first filter, the second end of the first filter is respectively connected with a first flushing valve and a first water pump, and the water outlet end of the first water pump is connected with a first outlet pressure gauge; the second branch is provided with a second filter, the second end of the second filter is respectively connected with a second flushing valve and a second water pump, the water outlet end of the second water pump is connected with a second outlet pressure gauge, and a water filtering device of the air separation system is connected with the controller. A first drain valve is also arranged at the third end of the first filter; and a second blowdown valve is also arranged at the third end of the second filter.

The water filtration device in the above patent document has a relatively complicated structure, and also requires frequent cleaning and sewage disposal, which affects the use of the air separation plant.

Disclosure of Invention

The invention aims at the problems in the prior art and provides a cooling water circulating and filtering device of an air separation plant, and the technical problems to be solved by the invention are as follows: how to improve the normal use time of cooling water and reduce the influence on the operation of air separation equipment.

The purpose of the invention can be realized by the following technical scheme:

a cooling water circulating and filtering device of an air separation plant is characterized in that the air separation plant is respectively provided with a water inlet and a water outlet of cooling water; the cooling water circulation filtering device is characterized by comprising a water cooling tower, a circulation water tank and a quartz sand filter, wherein a water outlet of the air separation plant is connected with an inlet of the water cooling tower through a first pipeline, an outlet of the water cooling tower is communicated with the circulation water tank, an outlet of the circulation water tank is communicated with an inlet of the quartz sand filter through a second pipeline, and an outlet of the quartz sand filter is communicated with a water inlet of the air separation plant through a third pipeline; and a circulating water pump is also arranged on the second pipeline.

In the cooling water circulating and filtering device of the air separation equipment, the water cooling tower is arranged above the circulating water tank, an outlet of the water cooling tower is connected to the upper side of the circulating water tank through a pipeline IV, and an outlet of the circulating water tank is positioned on one side of the circulating water tank and close to the bottom of the circulating water tank.

In the cooling water circulation filter equipment of foretell air separation equipment, this cooling water circulation filter equipment corresponds multiunit air separation equipment, pipeline one is through many through-connections to divide out multiunit branch pipe one, pipeline tee bend is through many through-connections to divide out multiunit branch pipe two, the quantity of branch pipe one with the quantity of branch pipe two the same and with air separation equipment's quantity is corresponding, branch pipe one and branch pipe two respectively one-to-one air separation equipment's delivery port and water inlet.

In the cooling water circulation filtering device of the air separation equipment, a branch pipe III is branched from the second pipeline, the branch pipe III is directly communicated with the three phases of the pipeline, and control valves are arranged at the positions of the branch pipe III and the second pipeline, which are positioned between the branch pipe III and the quartz sand filter, and the position of the pipeline III, which is positioned between the branch pipe III and the quartz sand filter. The cooling water can be controlled to directly flow back without passing through a quartz sand filter according to the requirement, and various different requirements are met.

In the cooling water circulation filtering device of the air separation equipment, the quartz sand filter is filled with shallow quartz sand, the second pipeline is connected to one side of the quartz sand filter, which is close to the upper end, and the third pipeline is connected to the bottom of the quartz sand filter.

By additionally arranging the quartz sand filter in the circulating cooling water way, when the raw cooling water flows through the granular filter material layer from top to bottom, suspended particles with larger particle sizes are firstly intercepted in gaps of the surface layer filter material, so that the gaps among the layer of filter material are smaller and smaller, the pollutant intercepting capability is higher and higher, and a layer of filter membrane mainly composed of intercepted solid particles is gradually formed as a result, and the effect of purifying the water quality is finally achieved. The cooling water circulation filtering device can ensure that the air separation equipment continuously and stably operates for a long time, and can save 25 ten thousand yuan of cost each year.

Compared with the prior art, the quartz sand filter is additionally arranged, the filter membrane is formed by utilizing suspended particles with larger particle sizes intercepted by the granular filter material layer, the effect of purifying water quality is achieved, the air separation equipment can continuously and stably run for a long time, frequent cleaning is not needed, the whole structure is simpler, the manufacturing cost is low, the occupied space is small, and the use is convenient.

Drawings

FIG. 1 is a schematic view of the structure of the gas recovery apparatus.

In the figure, 1, an air separation plant; 1a, a water inlet; 1b, a water outlet; 2. a water cooling tower; 3. a circulating water tank; 4. a quartz sand filter; 5. a first pipeline; 6. a second pipeline; 7. a third pipeline; 8. a water circulating pump; 9. a fourth pipeline; 10. a first branch pipe; 11. a second branch pipe; 12. a branch pipe III; 13. and (4) controlling the valve.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, an air separation plant 1 is provided with a water inlet 1a and a water outlet 1b for cooling water, respectively; the cooling water circulating and filtering device comprises a water cooling tower 2, a circulating water tank 3 and a quartz sand filter 4, wherein a water outlet 1b of the air separation plant 1 is connected with an inlet of the water cooling tower 2 through a first pipeline 5, an outlet of the water cooling tower 2 is communicated with the circulating water tank 3, an outlet of the circulating water tank 3 is communicated with an inlet of the quartz sand filter 4 through a second pipeline 6, and an outlet of the quartz sand filter 4 is communicated with a water inlet 1a of the air separation plant 1 through a third pipeline 7; a circulating water pump 8 is also arranged on the second pipeline 6; further, the water cooling tower 2 is arranged above the circulating water pool 3, the outlet of the water cooling tower 2 is connected to the upper side of the circulating water pool 3 through a pipeline IV 9, and the outlet of the circulating water pool 3 is positioned on one side of the circulating water pool 3 and close to the bottom; this cooling water circulation filter equipment corresponds multiunit air separation equipment 1, and pipeline 5 divides out multiunit branch pipe one 10 through leading to the joint more, and pipeline three 7 divides out multiunit branch pipe two 11 through leading to the joint more, and the quantity of branch pipe one 10 is the same with the quantity of branch pipe two 11 and corresponding with air separation equipment 1, and branch pipe one 10 and branch pipe two 11 respectively one-to-one air separation equipment 1's delivery port 1b and water inlet 1 a.

As shown in fig. 1, a branch pipe three 12 is branched from the pipe two 6, the branch pipe three 12 is directly communicated with the pipe three 7, and control valves 13 are respectively arranged at the positions of the branch pipe three 12 and the pipe two 6, which are positioned between the branch pipe three 12 and the quartz sand filter 4, and the position of the pipe three 7, which is positioned between the branch pipe three 12 and the quartz sand filter 4, so that the cooling water can be controlled to directly flow back without passing through the quartz sand filter 4 according to the needs, and various different requirements are met. In this embodiment, the quartz sand filter 4 is filled with shallow quartz sand, the second pipeline 6 is connected to one side of the quartz sand filter 4 close to the upper end, and the third pipeline 7 is connected to the bottom of the quartz sand filter 4.

By additionally arranging the quartz sand filter 4 in the circulating cooling water, when the raw cooling water flows through the granular filter material layer from top to bottom, suspended particles with larger particle sizes are firstly intercepted in gaps of the surface layer filter material, so that the gaps among the surface layer filter material are smaller and smaller, the dirt intercepting capability is higher and higher, and a layer of filter membrane mainly composed of intercepted solid particles is gradually formed as a result, and the effect of purifying the water quality is finally achieved. The cooling water circulation filtering device can ensure that the air separation plant 1 can continuously and stably operate for a long time, and can save 25 ten thousand yuan of cost each year. This cooling water circulation filter equipment has add quartz sand filter 4, utilizes the great suspended particles of particle diameter that granular filter bed of material held back to form the filter membrane, reaches the effect of purifying water quality, can make air separation plant 1 last stable long-time operation, does not need frequent washing, and whole structure is comparatively simple, low in manufacturing cost, and occupation space is little, convenient to use.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although 1, air separation plant is used more herein; 1a, a water inlet; 1b, a water outlet; 2. a water cooling tower; 3. a circulating water tank; 4. a quartz sand filter; 5. a first pipeline; 6. a second pipeline; 7. a third pipeline; 8. a water circulating pump; 9. a fourth pipeline; 10. a first branch pipe; 11. a second branch pipe; 12. a branch pipe III; 13. control valves, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.