CN218395067U - Water purification and cleaning device for polishing precise pipes - Google Patents

Abstract

The utility model discloses a water quality purification and cleaning device for precision pipe polishing, which comprises a water quality purification unit and an auxiliary online cleaning unit, wherein the water quality purification unit comprises a water distributor, the water distributor is connected with a water tank, a raw water pump is arranged between the water distributor and the water tank, the water distributor is connected with a bottom inlet and a top outlet of a medium filter in a closed loop manner through a primary pipeline, and the water distributor is connected with an inlet of a security filter through a secondary pipeline; the auxiliary online cleaning unit comprises a cleaning pipeline installed in the polishing machine and nozzles distributed on the cleaning pipeline, and an outlet pipeline of the cartridge filter is connected with the cleaning pipeline. The utility model discloses a set up medium filter and safety filter in the device, get rid of suspended solid, great granule impurity and filth in the former aquatic in proper order to and less particle impurity and metal mud, realize the filtration of higher accuracy, improved the purity of pure water, make its suitable accurate tubular product polishing use, solve the circumference mar defect that produces among its polishing process.

Description

Water purification and cleaning device for precision pipe polishing

Technical Field

The utility model belongs to the technical field of water treatment facilities, concretely relates to precision pipe polishing is with quality of water purification and belt cleaning device.

Background

Due to excellent physical and chemical properties, the precision pipe is often used as a structural member, a cladding material, a guide material and the like to be widely applied to high-tech fields such as nuclear power, aerospace, military industry and the like. The pipe generally has extremely high requirements on linearity, inner and outer surface quality, dimensional accuracy, end face quality and physical and chemical properties, so that the pipe is subjected to precision straightening, inner surface sand blasting/acid washing, outer surface polishing, a series of nondestructive tests and the like in the production process, the precision pipe is mostly required to be delivered in a mechanical polishing state, and the surface quality of the polished pipe has important influence on the service performance of the precision pipe under severe conditions. Therefore, it is very important to control the quality of the outer surface of the pipe and detect the surface defects by ultrasonic waves in the polishing process of the finished product. If the polishing quality is unstable, the pipe can be directly scrapped or the production period is prolonged, and then huge economic loss is caused.

The precision pipe has complex process, high quality requirement, large processing difficulty and extremely high requirement on used equipment and stability due to special use requirement. The requirements of the precision pipe on the polishing equipment mainly comprise the following three aspects:

(1) The outer surface of the polished pipe is uniform and consistent, has no color difference and no circumferential scratch defect;

(2) After polishing, carrying out ultrasonic detection on the pipe, wherein the pipe does not have dense/grass-shaped defects;

(3) The removal amount of the polished outer diameter of the pipe should not exceed the process requirement range of 20 microns.

The method is different from chemical reagents used for polishing common pipes, and the medium used for polishing the precise pipes is multi-stage purified pure water. In the polishing process of the precision pipe, the pure water medium can cool the polishing wheel and the surface of the pipe, remove larger SiC particles and impurities falling off in the polishing process, and simultaneously, the pure water polishing can completely avoid the pollution of chemical reagents on the surface of the pipe, ensure the surface quality and the corrosion performance of the precision pipe, and further ensure the use performance of the precision pipe in a severe and complex environment.

Although the pure water polishing of the precision pipe is beneficial to the smoothness of the outer surface of the pipe, the pure water polishing of the precision pipe also has problems which are mainly reflected in that the quality of the outer surface of the pipe after polishing has serious circumferential scratch defects. The reason is that the filtering system of the polishing machine can only filter SiC particles and impurities with the particle size of more than 20 microns, and the impurities and metal mud with smaller particles cannot be completely removed, so that the smaller particles and the impurities enter the guide sleeve along with the pipe in the polishing process of the precision pipe, and are acted with the outer surface of the pipe at the guide sleeve to generate circumferential scratches, and the quality of the outer surface of the pipe cannot meet the process requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art, provide a quality of water purifies and belt cleaning device for precision pipe polishing. The device sets up medium filter and cartridge filter in quality of water purification unit, gets rid of suspended solid, great granule impurity and filth in the former aquatic in proper order to and less particle impurity and metal mud, realize the filtration of higher accuracy, improved the purity of pure water, make its suitable precision tubular product polishing use, solve the circumference mar defect that produces among the precision tubular product polishing process, make tubular product surface quality satisfy the technological requirement, improve tubular product polishing process qualification rate.

In order to solve the technical problem, the utility model adopts the technical scheme that: a water quality purification and cleaning device for polishing precision pipes is characterized by comprising a water quality purification unit and an auxiliary online cleaning unit, wherein the water quality purification unit comprises a water distributor, the water distributor is connected with a water tank, a raw water pump is arranged between the water distributor and the water tank, the water distributor is in closed-loop connection with a bottom inlet and a top outlet of a medium filter through a primary pipeline, and the water distributor is connected with an inlet of a security filter through a secondary pipeline;

the auxiliary online cleaning unit comprises a cleaning pipeline installed in the polishing machine and nozzles distributed on the cleaning pipeline, and an outlet pipeline of the cartridge filter is connected with the cleaning pipeline.

The water quality purifying and cleaning device for polishing the precision pipes is characterized in that a sewage discharge pipeline communicated with a sewage discharge pool is further arranged in the water distributor.

The water quality purifying and cleaning device for polishing the precision pipes is characterized in that the water distributor comprises a JY-GL40 type automatic steering valve assembly.

The water quality purifying and cleaning device for polishing the precise pipe is characterized in that the medium filter comprises a glass fiber reinforced plastic tank body and a quartz sand medium filled in the glass fiber reinforced plastic tank body, and an inlet flange and an outlet flange are correspondingly arranged at the bottom and the top of the glass fiber reinforced plastic tank body.

The water quality purifying and cleaning device for polishing the precise pipe is characterized in that the particle size of the quartz sand medium is sequentially increased from top to bottom along the height direction of the glass fiber reinforced plastic tank body.

The water quality purification and cleaning device for polishing the precision pipes is characterized in that the security filter comprises a stainless steel tank body and a filter element filled in the stainless steel tank body, and an inlet flange and an outlet flange are correspondingly arranged at the top and the bottom of the stainless steel tank body.

The water quality purifying and cleaning device for polishing the precise pipe is characterized in that the nozzle is arranged at the front end of a polishing wheel of the polishing machine and is a bamboo joint pipe nozzle.

The water quality purifying and cleaning device for polishing the precision pipes is characterized in that the cleaning pipeline comprises a first cleaning branch installed on a polishing machine cleaning system and a second cleaning branch installed inside a polishing machine box body.

The water quality purifying and cleaning device for polishing the precision pipes is characterized in that the auxiliary online cleaning unit is connected with the water tank.

The water quality purification and cleaning device for polishing the precision pipes is characterized in that a pressure sensor A is arranged between the raw water pump and the water distributor, and a pressure sensor B is arranged between the security filter and the auxiliary online cleaning unit.

Compared with the prior art, the utility model has the following advantage:

1. the utility model discloses set up medium filter and security personnel filter in the water purification unit of device, combine to adopt the water-locator to arrange the distribution, form one-level filtration system and second grade filtration system respectively, get rid of the suspended solid in the former aquatic in proper order, great granule impurity and filth, and less particle impurity and metal mud, realize the filtration of higher accuracy, the purity of pure water has been improved, make its suitable precision tubular product polishing use, solve the circumference mar defect that produces among the precision tubular product polishing process, make tubular product surface quality satisfy the technological requirement, improve tubular product polishing process qualification rate.

2. The utility model discloses set up the water-locator in the quality of water purification unit of device and distribute the raw water, combine the pipeline arrangement in the one-level filtration system, realize the washing of the filter medium after adsorbing among the media filter, drive the suspended solid, great granule impurity and the filth discharge that adsorb in media filter, filter medium resumes the usability through regeneration, has prolonged filter medium's life, has reduced media filter's dismantlement number of times, has improved purification efficiency.

3. The utility model discloses a particle size of the quartz sand medium that loads in the medium filter increases along direction of height top-down in proper order, forms multistage filter layer to holding back solid suspended substance and forming the film, realizing membrane filtration and infiltration's effect simultaneously, improved the filterable precision of one-level greatly, improved the filterable cut-off of one-level.

4. The utility model discloses an adopt among the security filter to cross the filter core and realized the second grade of high accuracy and filter, and cross filth, the impurity of filter core interception and form "bridging" effect on crossing the filter core surface to the interception has improved second grade filtration efficiency rather than close particle impurity.

5. The utility model discloses set up respectively in the supplementary online cleaning unit of device and wash the branch road in burnishing machine cleaning system and box inside, not only realized the washing and the cooling to polishing tubular product, got rid of less particle and impurity in the accurate tubular product polishing in-process along with accurate tubular product entering guide pin bushing simultaneously, further avoided guide pin bushing department and accurate tubular product surface effect to produce the circumference mar, improved the surface quality of accurate tubular product.

6. The utility model discloses a device has improved the quality purity and the purification efficiency of pure water through setting up water purification unit and supplementary online cleaning unit, and then has improved the cleaning performance, has effectively avoided the excessive consumption of pure water medium in the burnishing machine working process, has reduced polishing manufacturing cost.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic structural view of the water purifying and cleaning device for polishing precise pipes of the present invention.

Description of the reference numerals:

1-a media filter; 2-cartridge filter; 3, a water distributor;

4, polishing by a polishing machine; 5, a raw water pump; 6, a water tank;

7-a sewage disposal pool; 8-a blowdown line; 9, cleaning a pipeline;

9-1 — a first cleaning branch; 9-2 — a second cleaning branch; 10-nozzle.

Detailed Description

Example 1

As shown in fig. 1, the water quality purification and cleaning device for polishing precision pipes of the present embodiment includes a water quality purification unit and an auxiliary online cleaning unit, the water quality purification unit includes a water distributor 3, the water distributor 3 is connected with a water tank 6, a raw water pump 5 is disposed between the water distributor 3 and the water tank 6, the water distributor 3 is connected with a bottom inlet and a top outlet of a media filter 1 in a closed loop manner through a primary pipeline, and the water distributor 3 is connected with an inlet of a security filter 2 through a secondary pipeline;

the auxiliary online cleaning unit comprises a cleaning pipeline 9 installed in the polishing machine 4, and nozzles 10 distributed on the cleaning pipeline 9, and the outlet pipeline of the cartridge filter 2 is connected with the cleaning pipeline 9.

The device comprises a water quality purification unit and an auxiliary online cleaning unit, wherein a water distributor 3 is arranged in the water quality purification unit, the water distributor 3 is connected with a water tank 6, a raw water pump 5 is arranged between the water distributor 3 and the water tank 6, raw water stored in the water tank 6 is pumped into a pipeline communicated with the water distributor 3 through the raw water pump 5, and then the water distributor 3 is adjusted to be distributed; the water distributor 3 is connected with a bottom inlet and a top outlet of the medium filter 1 in a closed loop mode through a primary pipeline, so that the water distributor 3 and the medium filter 1 form an independent closed primary filtering system, raw water is distributed into the primary filtering system by adjusting the water distributor 3, the raw water enters the medium filter 1 through the primary pipeline between the water distributor 3 and the inlet of the medium filter 1 to be subjected to primary filtering, then flows out of the top outlet of the medium filter 1, flows back into the water distributor 3 through the primary pipeline between the water distributor 3 and the top outlet of the medium filter 1, and is subjected to primary filtering circulation again to obtain primary filtered water, the precision of the primary filtering is effectively controlled by controlling the precision of a filtering medium in the medium filter 1, solid suspended matters, large particle impurities and dirt in the raw water are removed, the purity of the primary filtered water is improved, the number of the primary filtering in circulation is controlled to ensure that the primary filtering is fully carried out, and the purity of the primary filtered water is further improved; the water distributor 3 is connected with the inlet of the cartridge filter 2 through a secondary pipeline, under the distribution of the water distributor 3, primary filtered water enters the cartridge filter 2 through the secondary pipeline between the water distributor 3 and the inlet of the cartridge filter 2 to be subjected to secondary filtration to obtain pure water, the precision of a filter medium in the cartridge filter 2 is controlled to realize higher-precision filtration, small particle impurities and metal mud remained in the primary filtered water are effectively removed, and the purity of the pure water is further improved.

The auxiliary online cleaning unit in the device of the embodiment comprises a cleaning pipeline 9 installed in the polishing machine 4, and nozzles 10 distributed on the cleaning pipeline 9, wherein the outlet pipeline of the cartridge filter 2 is connected with the cleaning pipeline 9. In the device of this embodiment, the outlet pipeline of the security filter 2 is connected with the cleaning pipeline 9 in the auxiliary online cleaning unit, the pure water obtained by secondary filtration through the security filter 2 is sent into the auxiliary online cleaning unit, the pure water is sent into the polishing machine 4 through the cleaning pipeline 9 installed in the polishing machine 4, so that the polishing machine 4 can be used in the polishing process of precision pipes, the nozzles 10 are arranged on the cleaning pipeline 9, the pure water can enter different positions of the pipes in the polishing machine 4 through the nozzles 10, the polishing pipes can be polished and cleaned simultaneously and at multiple positions, large SiC particles and impurities falling off in the polishing process can be removed fully, and the polishing wheel and the surfaces of the pipes can be cooled rapidly and effectively.

The device of this embodiment does not contain the great granule such as SiC granule and impurity in the pure water that the raw water purifies the unit and obtains through the quality of water and purifies, also do not contain less particle impurity and metal mud, it gets into the guide pin bushing along with tubular product effectively to have avoided less particle and impurity among the precision tube polishing process, and in its guide pin bushing department and tubular product surface effect produce circumference mar, get rid of great SiC granule and impurity that drop among the polishing process simultaneously, effectively cool polishing wheel and tubular product surface fast, the pollution of chemical reagent to tubular product surface has been avoided completely, guarantee that the surface quality and the corrosion behavior of precision tube satisfy the technological requirement, and then guarantee the performance of precision tube in harsh complex environment.

Furthermore, a sewage discharge pipeline 8 leading into a sewage discharge pool 7 is also arranged in the water distributor 3. The device of this embodiment is provided with the blowdown pipeline 8 that lets in blowdown pond 7 in water-locator 3, arrange the distribution to the raw water through adjusting water-locator 3, filter medium after adsorbing in media filter 1 washes, make the suspended solid that adsorbs in media filter 1, great granule impurity and filth get into blowdown pond 7 and discharge through the blowdown pipeline 8 of water-locator 3 under the washing drive effect of raw water, thereby media filter 1's filter medium resumes the usability through regeneration, the life of filter medium has been prolonged, the dismantlement number of times of media filter 1 with cartridge filter 2 has been reduced, and the purification efficiency is improved.

Further, the water distributor 3 comprises an JY-GL40 type automatic steering valve assembly. The JY-GL40 type automatic steering valve assembly is used as the water distributor 3, after raw water pumped from the water tank 6 enters the water distributor 3 through a pumping pipeline, the automatic steering valve assembly controls the switching and the communication of the pumping pipeline, a first-stage pipeline at the top of the medium filter 1, a first-stage pipeline at the bottom of the medium filter 1, a second-stage pipeline at the top of the security filter 2 and a sewage discharge pipeline 8, and therefore the functions of first-stage filtration, first-stage filtration circulation, second-stage filtration, sewage discharge, cleaning and the like after the raw water enters the water distributor 3 are achieved. Particularly, the automatic steering valve assembly has the functions of forward washing, back washing, running and the like, and particularly, primary filtering is realized by controlling raw water to sequentially flow through a pump pipeline, a water distributor 3, a primary pipeline at the bottom of a medium filter 1, the medium filter 1 and a primary pipeline at the top of the medium filter 1, and then the raw water continuously enters the water distributor 3 and the primary pipeline at the bottom of the medium filter 1, and finally the primary filtering is carried out by 8230, so that primary filtering circulation is realized, primary filtered water is obtained, and the primary filtered water flows through a secondary pipeline at the top of a security filter 2 by controlling the water distributor 3 and enters the security filter 2 for secondary filtering to obtain pure water, so that the running function is realized; the method comprises the steps that raw water is controlled to sequentially flow through a pump-in pipeline, a water distributor 3, a primary pipeline at the bottom of a medium filter 1, the medium filter 1, a primary pipeline at the top of the medium filter 1, the water distributor 3 and a sewage drainage pipeline 8 to be cleaned in a forward direction, so that impurities adsorbed by filter media in the primary pipeline and the medium filter 1 flow through the sewage drainage pipeline 8 under the driving of the raw water to enter a sewage drainage pool 7, and a forward washing function is realized; the raw water is controlled to sequentially flow through the pump-in pipeline, the water distributor 3, the primary pipeline at the top of the medium filter 1, the primary pipeline at the bottom of the medium filter 1, the water distributor 3 and the sewage discharge pipeline 8 for reverse cleaning, so that impurities in the primary pipeline and the medium filter 1 are driven by the raw water to flow through the sewage discharge pipeline 8 to enter the sewage discharge pool 7, the backwashing function is realized, the regeneration and utilization of the filter medium in the medium filter 1 are realized, the service life of the medium filter 1 is prolonged, frequent replacement of the filter medium in the medium filter 1 is avoided, and the purification efficiency is improved. In actual operation, according to the impurity content in raw water and the filtering capacity of a filtering medium in the medium filter 1, the time of forward washing, backwashing and operation is set in the water distributor 3, and when the time of operation is up, an operator is reminded to carry out forward washing or backwashing on the medium filter 1, so that impurities and metal sludge remained in the medium filter 1 are effectively removed, the water quality purification function of the device is ensured, and the service life of the device is prolonged.

Further, the medium filter 1 comprises a glass fiber reinforced plastic tank body and quartz sand media filled in the glass fiber reinforced plastic tank body, and an inlet flange and an outlet flange are correspondingly arranged at the bottom and the top of the glass fiber reinforced plastic tank body. The glass fiber reinforced plastic material is corrosion-resistant, light in weight and convenient to install and detach, and the quartz sand medium has good adsorption performance and is easy to obtain, so that the practicability of the device is improved.

Further, the particle size of the quartz sand medium is sequentially increased from top to bottom along the height direction of the glass fiber reinforced plastic tank body. In the embodiment, the particle size of the quartz sand medium is sequentially increased from top to bottom along the height direction of the glass fiber reinforced plastic tank body, the multistage filter layers with the sequentially increased pores from top to bottom are formed in the glass fiber reinforced plastic tank body, when water flows into the medium filter 1 through the first-stage pipeline at the bottom of the medium filter 1, the water flows through the multistage filter layers from bottom to top, part of solid suspended substances in the water enter the upper-layer filter medium of the multistage filter layers to form micro pores, the suspended substances are intercepted by the surface layer of the filter medium under the adsorption and mechanical interception effects, the intercepted suspended substances are overlapped and bridged, and a film is formed on the surface of the upper-layer filter medium, so that the suspended substances in the water are continuously filtered to form film filtration, when the water enters the middle-layer filter medium and has the interception effect, namely, when the water flows through the middle layer and the upper layer of the medium filter 1, the film filtration and the permeation filtration effects are simultaneously performed, the precision of the first-stage filtration is greatly improved, and the interception amount of the first-stage filtration is improved. In addition, because the filter media in the media filter 1 are closely arranged to form a pore structure with a bent and complex structure, the flow path of suspended substance particles in water in the pore structure is prolonged, the mutual collision and contact opportunities of the suspended substance particles and the surface of the filter media are increased, the flocculation effect is generated, a larger flocculent precipitate is formed, the mutual adhesion of the suspended substance particles and the flocculent on the particle surface of the filter media is promoted, the contact coagulation process is generated, the intercepting flow of primary filtration is further improved, and the filtering effect is enhanced. Typically, the accuracy of the first stage filtration is 10 μm.

Further, the cartridge filter 2 comprises a stainless steel tank body and a filter element filled in the stainless steel tank body, and an inlet flange and an outlet flange are correspondingly installed at the top and the bottom of the stainless steel tank body. The device of the embodiment adopts the filter element filled in the stainless steel tank body as the security filter 2, realizes further high-precision filtration of primary filtered water by controlling the aperture of the filter element and utilizing the interception function of the aperture, simultaneously, dirt and impurities intercepted by the filter element form a bridging function on the surface of the filter element in the using process and intercept similar particle impurities, thereby improving the secondary filtration efficiency, and along with the extension of the secondary filtration time in the operation process, the secondary filtration precision is gradually increased, the secondary filtration efficiency is also improved, but along with the extension of the secondary filtration time, the secondary filtration precision is gradually increased, the pressure difference of an inlet and an outlet of the security filter 2 is gradually increased, when the pressure difference is overlarge, the impurities and the dirt are pressed into the filter element to deteriorate the water quality of produced water, therefore, when the pressure difference of the inlet and the outlet of the security filter 2 reaches 0.5 kg, the filter element is detached for replacement, so as to ensure the quality of pure water; the filter element can be maintained for 6-7 months under normal working condition. Usually, 25 hollow filter elements made of polymer fibers are longitudinally and rectangularly arranged in the stainless steel tank of the security filter 2.

Further, the nozzle 10 is arranged at the front end of the polishing wheel of the polishing machine, and the nozzle 10 is a bamboo joint pipe nozzle. In the embodiment, the nozzle 10 is arranged at the front end of the polishing wheel of the polishing machine, so that abrasive belt particles and metal mud attached to the surface of a polished pipe after polishing once are timely and quickly cleaned and cooled in the polishing process of the operation of the polishing wheel, and the influence of circumferential scratches on the surface quality of the pipe due to the interaction with the outer surface of the pipe is avoided; the bamboo joint pipe nozzle can be used for adjusting the position and the spraying direction of the nozzle, so that the spraying position of the pipe is convenient to adjust, and the cleaning effect is improved. Typically, the number of nozzles 10 on the purge line 9 is set to 6.

Further, the cleaning pipeline 9 comprises a first cleaning branch 9-1 installed in the cleaning system of the polishing machine and a second cleaning branch 9-2 installed inside the box body of the polishing machine. In the embodiment, two branches, namely a first cleaning branch 9-1 and a second cleaning branch 9-2, are divided from a cleaning pipeline 9, the first cleaning branch 9-1 is installed in a cleaning system of a polishing machine and used for cleaning and cooling a polished pipe, meanwhile, the second cleaning branch 9-2 is installed inside a box body of the polishing machine, pure water is filled into a guide sleeve through nozzles 10 distributed on the second cleaning branch 9-2, small particles and impurities entering the guide sleeve along with the precise pipe in the polishing process of the precise pipe are removed, the circumferential scratch of the guide sleeve and the outer surface of the precise pipe is further avoided, and the quality of the outer surface of the precise pipe is improved.

Further, the auxiliary online cleaning unit is connected with the water tank 6. This embodiment is through being connected supplementary online cleaning unit with water tank 6, set up emergent pipeline for supplementary online cleaning unit, be arranged in the washing to each part and each pipeline in supplementary online cleaning unit on the one hand, compensate the pressure loss behind water tank 6 through the water purification unit on the one hand, avoid the overheated spontaneous combustion of metal powder that produces among the surface finish process, after the device operation is ended, utilize the water among the water tank 6 to wash accumulational metal powder in the online cleaning unit simultaneously, avoided metal powder to pile up and cause the spontaneous combustion, emergent purpose has been realized.

In addition, the device of the embodiment also comprises various electrical components, an alarm device, a PLC program and the like which are normally installed in the medium filter 1, the security filter 2 and the auxiliary online cleaning system, and is used for controlling and implementing each electrical unit and realizing the water quality purification and cleaning functions of the device.

Further, a pressure sensor a is arranged between the raw water pump 5 and the water distributor 3, and a pressure sensor B is arranged between the cartridge filter 2 and the auxiliary online cleaning unit. Generally, the set pressure value in the pressure sensor A is 0.2 MPa-0.4 MPa, the common pressure value is 0.3MPa, the set pressure value in the pressure sensor B is 0.1 MPa-0.3 MPa, and the common pressure value is 0.2MPa, the amount of raw water pumped by the raw water pump 5 and pure water entering the auxiliary online cleaning unit is controlled by setting the pressure sensor A and the pressure sensor B and limiting the corresponding set pressure values, and furthermore, alarms are further arranged in the pressure sensor A and the pressure sensor B, and an alarm prompt is given after the pressure at the corresponding measuring points exceeds the upper limit and the lower limit of the pressure sensor A and the pressure sensor B, so that the situation that a water supply pipeline is broken due to overlarge pressure is avoided, or the pressure is too low to be beneficial to smooth cleaning in the polishing process is avoided.

The water purification and cleaning device for precision pipe polishing in the embodiment is used in the following processes: storing raw water in a water tank 6, starting a raw water pump 5 to enable the raw water in the water tank 6 to enter a water distributor 3 in a water quality purification unit through a pipeline, adjusting the water distributor 3 to have a running function, enabling the raw water to enter a medium filter 1 through a first-stage pipeline between the water distributor 3 and the bottom of the medium filter 1 to be subjected to first-stage filtration, enabling the raw water to flow out of the top of the medium filter 1, enabling the raw water to flow back into the water distributor 3 through the first-stage pipeline between the water distributor 3 and the top of the medium filter 1, performing circulation of the first-stage filtration again to obtain first-stage filtered water, adjusting the water distributor 3 to enable the first-stage filtered water to enter a cartridge filter 2 through a second-stage pipeline between the water distributor 3 and an inlet of the cartridge filter 2 to be subjected to second-stage filtration to obtain pure water; pure water is introduced into a cleaning pipe 9 in an auxiliary in-line cleaning unit installed in the polishing machine 4 through a pipe and sprayed from a nozzle 10, and the surface of the pipe falling during the polishing process is cleaned and cooled.

When the adsorption capacity of the filter medium in the medium filter 1 is large or is close to adsorption saturation, the water distributor 3 is adjusted to have a forward washing function, so that raw water sequentially flows through the pump pipeline, the water distributor 3, the first-stage pipeline at the bottom of the medium filter 1, the first-stage pipeline at the top of the medium filter 1, the water distributor 3 and the sewage discharge pipeline 8 to be positively washed, and impurities in the first-stage pipeline and the medium filter 1 are driven by the raw water to flow down through the sewage discharge pipeline 8 to enter the sewage discharge tank 7; and then the water distributor 3 is adjusted to have a backwashing function, so that raw water flows through the pump-in pipeline, the water distributor 3, the first-stage pipeline at the top of the medium filter 1, the first-stage pipeline at the bottom of the medium filter 1, the water distributor 3 and the sewage discharge pipeline 8 in sequence for reverse cleaning, and impurities adsorbed by the filter media in the first-stage pipeline and the medium filter 1 are driven by the raw water to flow through the sewage discharge pipeline 8 to enter the sewage discharge pool 7, thereby realizing the backwashing function.

The effects of the water quality purification and cleaning apparatus for precision pipe polishing of the present example are discussed by the following practical use examples.

(1) 600 zirconium alloy pipes with the diameter of 10mm multiplied by 4000mm (the diameter multiplied by the length) are taken for polishing experiments, and the set quality requirements are as follows:

(1) the outer surface of the polished pipe is uniform and has no color difference, and the proportion of circumferential scratch defects is less than or equal to 2 percent;

(2) carrying out ultrasonic detection on the pipe after polishing, wherein the density/grass-shaped defect ratio of the pipe is less than or equal to 3%;

(3) the removal amount of the outer diameter of the polished pipe is stable and is not more than 20 mu m.

The specific process of the experiment is as follows: adjusting tools such as a scale and a guide sleeve used by a polishing machine according to the specification of a phi 10mm pipe, then starting a polishing machine main machine and a water quality purification and cleaning device for polishing a precision pipe to polish the zirconium alloy pipe, detecting the polished zirconium alloy pipe, wherein the quality of the outer surface of the pipe and the dense/grass-shaped defects are detected one by one, the removal amount of the outer diameter of the polished pipe is randomly detected according to the frequency of 10%, and the operation condition of the device in the embodiment in the processing process is evaluated, and the results are as follows:

(1) the method comprises the following steps of (1) carrying out outer surface inspection on zirconium alloy pipes with the diameter of 10mm multiplied by 4000mm one by one, wherein the circumferential scratch defects of the outer surfaces of the pipes account for 1%;

(2) carrying out ultrasonic detection on zirconium alloy pipes with the diameter of phi 10mm multiplied by 4000mm one by one, wherein the density/grass-shaped defects of the pipes account for 1.5 percent;

(3) the removal amount of the outer diameter of the zirconium alloy tube with the diameter of 10mm multiplied by 4000mm is 10 percent sampled and inspected, and the removal amount of the outer diameter of the tube is stabilized between 10 mu m and 13 mu m.

(2) 500 titanium alloy pipes with the diameter of 8.5mm multiplied by 3000mm (the diameter multiplied by the length) are taken to carry out a polishing experiment, and the set quality requirements are as follows:

(1) the outer surface of the polished pipe is uniform and uniform without chromatic aberration, and the ratio of circumferential scratch defects is less than or equal to 2 percent;

(2) carrying out ultrasonic detection on the pipe after polishing, wherein the density/grass-shaped defect ratio of the pipe is less than or equal to 3%;

(3) the removal amount of the outer diameter of the pipe after polishing is stable and is not more than 20 mu m.

The specific process of the experiment is as follows: adjusting tools such as a scale and a guide sleeve used by a polishing machine according to the specification of a phi 8.5mm pipe, starting a polishing machine main machine and a water quality purifying and cleaning device for polishing a precise pipe to polish the titanium alloy pipe, detecting the polished titanium alloy pipe, wherein the quality of the outer surface of the pipe and the dense/grass-shaped defects are detected one by one, the removal amount of the outer diameter of the pipe after polishing is checked by a sampling mode according to the frequency of 10%, and the operation condition of the device in the embodiment in the processing process is evaluated, and the results are as follows:

(1) the method comprises the following steps of (1) carrying out outer surface inspection on zirconium alloy pipes with phi of 8.5mm multiplied by 3000mm one by one, wherein the circumferential scratch defects of the outer surfaces of the pipes account for 1%;

(2) carrying out ultrasonic detection on zirconium alloy pipes with the diameter of 8.5mm multiplied by 3000mm one by one, wherein the density/grassy defect ratio of the pipes is 1.9%;

(3) the removal amount of the outer diameter of the zirconium alloy pipe with the diameter of 8.5mm multiplied by 3000mm is inspected by 10% in a sampling mode, and the removal amount of the outer diameter of the pipe is stabilized at 9-123 mu m.

From the above-mentioned result, adopt the precision tubular product for the polishing water purification and belt cleaning device of this embodiment to carry out the polishing experiment, the quality evaluation result of the tubular product that obtains all satisfies the quality requirement of setting for, explains the circumference mar problem that the device effectively produced in solving precision tubular product polishing process, and equipment stability is good, uses convenient operation, and the practicality is strong, excellent in use effect, convenient to popularize and use.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modifications, changes and equivalent changes made to the above embodiments according to the technical essence of the utility model are all within the protection scope of the technical solution of the present invention.

Claims (10)

1. A water quality purification and cleaning device for precision pipe polishing is characterized by comprising a water quality purification unit and an auxiliary online cleaning unit, wherein the water quality purification unit comprises a water distributor (3), the water distributor (3) is connected with a water tank (6), a raw water pump (5) is arranged between the water distributor (3) and the water tank (6), the water distributor (3) is in closed-loop connection with a bottom inlet and a top outlet of a medium filter (1) through a primary pipeline, and the water distributor (3) is connected with an inlet of a security filter (2) through a secondary pipeline; the auxiliary online cleaning unit comprises a cleaning pipeline (9) arranged in the polishing machine (4) and nozzles (10) distributed on the cleaning pipeline (9), and an outlet pipeline of the cartridge filter (2) is connected with the cleaning pipeline (9).

2. The water quality purifying and cleaning device for polishing the precision pipe according to claim 1, wherein a sewage discharge pipeline (8) leading into a sewage discharge pool (7) is further arranged in the water distributor (3).

3. The water quality purifying and cleaning device for precision pipe polishing as claimed in claim 1, wherein the water distributor (3) comprises JY-GL40 type automatic steering valve assembly.

4. The water quality purifying and cleaning device for precision pipe polishing as claimed in claim 1, wherein the medium filter (1) comprises a glass fiber reinforced plastic tank and a quartz sand medium filled in the glass fiber reinforced plastic tank, and an inlet flange and an outlet flange are correspondingly arranged at the bottom and the top of the glass fiber reinforced plastic tank.

5. The water quality purifying and cleaning device for the precision pipe polishing as claimed in claim 4, wherein the particle size of the quartz sand medium is increased from top to bottom in sequence along the height direction of the glass fiber reinforced plastic tank body.

6. The water quality purifying and cleaning device for precision pipe polishing as claimed in claim 1, wherein the cartridge filter (2) comprises a stainless steel tank and a filter element filled in the stainless steel tank, and the top and the bottom of the stainless steel tank are correspondingly provided with an inlet flange and an outlet flange.

7. The water quality purifying and cleaning device for polishing the precision tube stock as recited in claim 1, wherein the nozzle (10) is arranged at the front end of a polishing wheel of the polishing machine, and the nozzle (10) is a bamboo joint tube nozzle.

8. The water quality purifying and cleaning device for precision pipe polishing as claimed in claim 1, wherein the cleaning pipeline (9) comprises a first cleaning branch (9-1) installed in the polishing machine cleaning system and a second cleaning branch (9-2) installed in the polishing machine box.

9. The water quality purifying and cleaning device for precision pipe polishing as claimed in claim 1, wherein the auxiliary online cleaning unit is connected with the water tank (6).

10. The water quality purifying and cleaning device for precision pipe polishing as claimed in claim 1, wherein a pressure sensor a is provided between the raw water pump (5) and the water distributor (3), and a pressure sensor B is provided between the security filter (2) and the auxiliary online cleaning unit.

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