Environment-friendly degreasing device for phosphating oil casing coupling

Abstract

The invention discloses an environment-friendly degreasing device for phosphating an oil casing coupling, and relates to the technical field of degreasing devices. Comprising a degreasing barrel, a bearing assembly is arranged in the degreasing barrel, and an oil casing coupling to be phosphatized is placed on the bearing assembly; an annular pipe is fixed on the inner wall of the degreasing barrel, a plurality of nozzles which are inclined upwards are fixedly communicated with a pipe body of the annular pipe, and an angle is formed between the water outlet direction of each nozzle and the central axis of the degreasing barrel. According to the invention, main recycling of the treating fluid is realized, water resources and residual chemicals are recovered to the greatest extent, and only a small amount of lost solvent and consumed chemical components need to be supplemented, evaporated and carried externally, so that the high-water-consumption, high-chemical-consumption and high-pollution mode of regular waste discharge and large-amount liquid change of a traditional open tank body is thoroughly changed; the hazardous waste treatment cost and the environmental load are greatly reduced, meanwhile, the water resource and the chemical purchasing cost are saved, and the requirements of green manufacturing and sustainable development are met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of degreasing devices, in particular to an environmentally friendly degreasing device for phosphating treatment of oil sleeve couplings. BACKGROUND

[0002] In the field of metal surface coating, phosphating treatment is an indispensable main process in metal coating pretreatment. Phosphating can significantly improve the adhesion and protection of the coating, and is the key technology to ensure coating quality. It is a necessary process for automobile, household appliance and machinery production. Therefore, the phosphating treatment of oil sleeve couplings is a key process in the manufacture of oil pipes, and the pretreatment degreasing effect directly affects the phosphating quality.

[0003] A metal framework degreasing and phosphating device is disclosed in Chinese utility model patent with authorization publication number CN220846274U. The design of the cleaning mechanism allows the metal framework to be degreased and phosphated in the degreasing and phosphating cavity and cleaned after treatment in the cleaning cavity. To avoid the difficulty of cleaning the impurities adsorbed on the inner wall of the degreasing and phosphating cavity and the cleaning cavity, the side wall impurities can be scraped off by controlling the up and down movement of the frame plate. When the bottom scraper plate contacts the bottom wall, the bottom wall impurities can be removed by controlling the movement of the bottom scraper plate. Compared with manual cleaning, it saves manpower and is more efficient.

[0004] For example, a degreasing and phosphating wastewater treatment device is disclosed in Chinese utility model patent with authorization publication number CN220703366U. By adding a flocculating agent to the water tank, the wastewater can be stirred by a pneumatic stirring method. The suspended particles in the degreasing and phosphating wastewater can be flocculated into flocs. The transmission wheel is driven by a reduction motor, and the transmission wheel can drive the driven wheel to rotate. The driven wheel can drive the air pipe to rotate, and the air pipe can continuously rotate to irregularly disturb the wastewater and increase the stirring effect of the wastewater.

[0005] The degreasing device for phosphating treatment of oil sleeve couplings in the prior art still has some defects in actual application. For example, during the degreasing process, the contact between the treatment liquid and the oil sleeve coupling is not sufficient and uniform, resulting in incomplete degreasing of some coupling surfaces. At the same time, the oil-containing wastewater generated during degreasing is directly discharged, which results in insufficient utilization of effective components, causing resource waste and environmental pollution. SUMMARY

[0006] The present application aims to provide an environmentally friendly degreasing device for phosphating treatment of oil sleeve couplings to solve the problems raised in the background art.

[0007] In order to achieve the above object, the present application provides the following technical scheme: an environment-friendly oil sleeve coupling phosphating treatment degreasing device, comprising a degreasing barrel, a bearing assembly is arranged in the degreasing barrel, and the oil sleeve coupling to be phosphated is placed on the bearing assembly;

[0008] An annular pipe is fixed on the inner wall of the degreasing barrel, a plurality of nozzles are fixedly connected on the pipe body of the annular pipe, the water outlet direction of the nozzles is inclined upward, and the water outlet direction of the nozzles forms an angle with the central axis of the degreasing barrel.

[0009] A clean water pipe is fixedly connected to the outer side of the annular pipe, a second liquid pump is connected to the pipe body of the clean water pipe, a second sewage outlet pipe is fixedly connected to the top of the degreasing barrel, and a second sewage pump is connected to the pipe body of the second sewage outlet pipe.

[0010] A first sewage outlet pipe is fixedly connected to the bottom of the degreasing barrel, and a first sewage pump is connected to the pipe body of the first sewage outlet pipe.

[0011] A filter unit is connected between the first sewage outlet pipe and the second sewage outlet pipe, an oil stain separation and recovery unit is connected to the liquid outlet of the filter unit through a first connecting pipe, and the liquid outlet of the oil stain separation and recovery unit is fixedly connected with the clean water pipe through a second connecting pipe.

[0012] A medicine supplementing device is connected to the pipe body of the clean water pipe, a solvent supplementing assembly is arranged at the top of the degreasing barrel, and a liquid level monitor for monitoring the liquid level of the loaded treatment liquid is arranged in the degreasing barrel.

[0013] Further, a slope is formed at the bottom of the degreasing barrel, a communication pipe is fixedly connected to the bottom of the slope, and the communication pipe is fixedly connected with the first sewage outlet pipe.

[0014] Further, the filter unit comprises a magnetic filter, a bag type precision filter and a tubular membrane separation device connected in series, and the first sewage outlet pipe and the second sewage outlet pipe are connected with the magnetic filter.

[0015] Further, the medicine supplementing device comprises a buffer barrel, a bypass pipe is fixedly connected to one side of the buffer barrel, and a circulating pump and a spectrometer are respectively connected to the pipe body of the bypass pipe.

[0016] A medicine barrel is connected to the top of the buffer barrel through a medicine supplementing pipe, and a third liquid pump and a second flow meter are connected to the pipe body of the medicine supplementing pipe.

[0017] Further, the solvent supplementing assembly comprises a solvent inlet pipe, the pipe bodies on both sides of the solvent inlet pipe are connected with the degreasing barrel and a solvent barrel respectively, and a first liquid pump and a first flow meter are connected to the pipe body of the solvent inlet pipe.

[0018] Further, a hollow liquid suction head is fixed to the liquid suction port of the second sewage outlet pipe.

[0019] Further, the bottom of the bearing assembly is provided with an annular support plate, and a plurality of ultrasonic generators are fixed on the plate body of the annular support plate.

[0020] Further, a jacket is formed on the barrel body of the degreasing barrel, a spiral plate is fixed in the jacket, and a heat exchange medium inlet pipe and a heat exchange medium outlet pipe are respectively fixedly connected to the top and the bottom of the jacket, and a heating assembly is connected between the heat exchange medium inlet pipe and the heat exchange medium outlet pipe.

[0021] Further, the bearing assembly comprises a hollow support disc, and a plurality of hollow circular truncated cone support seats are fixed on the top of the hollow support disc, and the oil sleeve coupling to be phosphorized is sleeved on the hollow circular truncated cone support seat.

[0022] Further, a stepped groove is formed on the top of the degreasing barrel, the top cover of the degreasing barrel is matched with the stepped groove, and the top cover and the hollow support disc are fixed through the connecting rod.

[0023] The top of the degreasing barrel is fixed with a support frame, and a winding assembly is arranged on the top of the support frame, and the winding rope end of the winding assembly is fixed with the top cover.

[0024] Compared with the prior art, the present application has the following advantages:

[0025] The degreasing device for the environment-friendly oil sleeve coupling phosphorization treatment can not directly discharge the sewage generated by degreasing, but can deeply purify the sewage through three-stage filtration and oil stain separation and recovery units, the separated oil stains can be recycled, the purified 'clean liquid' can be sprayed back to the degreasing process through a water purification pipeline, the main body of the treatment liquid is recycled, the water resources and residual reagents are recycled to the maximum extent, only a small amount of solvent evaporated and carried away and consumed reagent components need to be supplemented, which completely changes the traditional open tank regular waste discharge, large amount of liquid replacement, high water consumption, high reagent consumption and high pollution mode, greatly reduces the hazardous waste treatment cost and environmental load, saves water resources and chemical purchase cost, and meets the requirements of green manufacturing and sustainable development.

[0026] Meanwhile, the design of the hollow circular truncated cone support seat not only matches the couplings with different inner diameters, but also ensures that the treatment liquid can contact the inner and outer walls of the couplings without dead angles due to the hollow structure, and the ultrasonic cavitation cleaning and the spiral upward water flow generated by the inclined spray head form a synergistic effect: the ultrasonic wave microscopically peels off stubborn oil stains, the macroscopic spiral flow continuously washes the surface and carries away the peeled materials, and the reagent concentration and temperature in the barrel are uniform, and the degreasing effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a left side view of the present application;

[0028] Figure 2 It is a right side view of the present application;

[0029] Figure 3 This is a right rear axis view of the present invention;

[0030] Figure 4 for Figure 3 Enlarged view of section A;

[0031] Figure 5 This is a first half-sectional view of the present invention;

[0032] Figure 6 This is a second half-sectional view of the present invention.

[0033] In the diagram: 1. Degreasing tank; 101. Slope; 102. Connecting pipe; 2. Top cover; 3. Winding assembly; 401. Hollowed-out support plate; 402. Hollowed-out frustum-shaped support base; 403. Connecting rod; 5. Support frame; 6. Solvent replenishment assembly; 601. Solvent inlet pipe; 602. First liquid pump; 603. First flow meter; 701. Spiral plate; 702. Heat exchange medium inlet pipe; 8. Liquid level monitor; 901. Annular support plate; 902. Ultrasonic generator; 10. First wastewater outlet pipe; 1001. First wastewater outlet pipe. 11. Water pump; 12. Second sewage outlet pipe; 13. Second sewage pump; 14. Hollowed-out suction head; 15. Filtration unit; 16. Magnetic filter; 17. Bag precision filter; 18. Tubular membrane separator; 19. Oil separation and recovery unit; 10. Clean water pipe; 11. Second liquid pump; 12. Ring pipe; 13. Nozzle; 14. Buffer tank; 15. Bypass pipe; 15. Circulation pump; 15. Spectrometer; 15. Third liquid pump; 15. Second flow meter; 15. Medicine tank. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] like Figures 1-6 As shown, the present invention provides a technical solution: an environmentally friendly degreasing device for phosphating oil casing couplings, comprising a controller and a degreasing tank 1, wherein a supporting component is provided inside the degreasing tank 1, and the oil casing coupling to be phosphated is placed on the supporting component, as shown. Figure 6As shown, the bearing assembly includes a hollow support disc 401, and a plurality of hollow circular truncated cone support seats 402 are fixed on the top of the hollow support disc 401 in a circumferential array. The inner side wall of the oil sleeve coupling to be treated can be fitted on the outer side wall of the hollow circular truncated cone support seat 402. The circular truncated cone structure can adapt to support different inner diameter couplings, and the hollow design ensures that the treatment liquid can fully contact the inner and outer surfaces of the coupling.

[0036] A ring-shaped step groove is formed in the top of the degreasing barrel 1, and the edge of the top cover 2 of the degreasing barrel 1 is matched with the step groove. After the top cover 2 is closed, the degreasing barrel 1 is sealed. The top cover 2 and the hollow support disc 401 are fixedly connected through the connecting rod 403. In order to facilitate the placement and taking of the oil sleeve coupling, a door-shaped support frame 5 is fixed on the outer periphery of the top of the degreasing barrel 1. A winding assembly 3 is arranged on the top beam of the support frame 5. The winding assembly 3 includes a driving motor, a winding wheel and a winding rope. The end of the winding rope is fixedly connected to the center of the upper surface of the top cover 2. The driving of the winding assembly 3 can drive the top cover 2 and the bearing assembly connected thereto to rise and fall as a whole, thereby realizing the convenient taking and placing of the coupling. In order to prevent the top cover 2 from shaking during upward movement, a plurality of guide rods movably inserted into the top cover 2 are fixed on the step surface of the step groove.

[0037] As shown in the figure, Figure 6 A ring-shaped support plate 901 is fixed at the bottom of the degreasing barrel 1 below the bearing assembly. A plurality of ultrasonic generators 902 are embedded and fixed on the upper surface of the plate body of the ring-shaped support plate 901 and uniformly distributed in the circumferential direction. When the ultrasonic generators 902 work, high-frequency vibration energy can be transmitted to the treatment liquid in the degreasing barrel 1, so that a large number of micro cavitation bubbles are generated. The impact force generated when the bubbles burst can effectively strip the stubborn oil stains on the surface of the coupling, and the degreasing efficiency is significantly improved.

[0038] In order to optimize the temperature environment of the treatment liquid and improve the degreasing effect, a ring-shaped jacket is formed in the peripheral wall of the barrel body of the degreasing barrel 1. A spiral plate 701 is welded and fixed in the jacket. A heat medium inlet pipe 702 and a heat medium outlet pipe are fixedly connected to the top and bottom of the jacket, respectively. A heating assembly is connected between the heat medium inlet pipe 702 and the heat medium outlet pipe through a pipeline. The heating assembly can be an electric heating water tank or a steam boiler. By introducing heat medium (such as water or steam) into the jacket and flowing along the spiral plate 701, the treatment liquid in the degreasing barrel 1 can be uniformly heated, the optimal degreasing reaction temperature can be maintained, and the stability of the degreasing effect is improved.

[0039] In order to realize the precise replenishment of the processing liquid, the degreasing barrel 1 is provided with a solvent replenishment assembly 6 at the top. The assembly includes a solvent inlet pipe 601, one end of which is fixedly communicated with the top side wall of the degreasing barrel 1, and the other end is connected with an external solvent barrel. A first liquid pump 602 and a first flow meter 603 are connected in sequence on the pipe body of the solvent inlet pipe 601 from the solvent barrel to the degreasing barrel 1. A liquid level monitor 8 is arranged in the degreasing barrel 1. When the liquid level of the processing liquid is lower than the set threshold value, the liquid level monitor 8 sends a signal to the control system, and the control system starts the first liquid pump 602. The solvent is pumped into the degreasing barrel 1 through the solvent inlet pipe 601, and the first flow meter 603 monitors the replenishment amount in real time. When the preset value is reached, the replenishment is automatically stopped, so as to ensure that the liquid level of the processing liquid is stable within the process requirement range.

[0040] As shown in Figure 1 and Figure 6 , a ring-shaped pipe 142 is fixed on the inner wall of the degreasing barrel 1 at the upper part. A plurality of upwardly inclined nozzles 143 are fixedly communicated on the inner side wall of the ring-shaped pipe 142. The water outlet direction of the nozzles 143 is not vertically upward, but forms a certain angle (for example, 45 degrees) with the central axis of the degreasing barrel 1. The inclined directions of adjacent nozzles are uniformly distributed in the circumferential direction. The outer side of the ring-shaped pipe 142 is fixedly communicated with a clean water pipe 14. The other end of the clean water pipe 14 is fixedly communicated with the liquid outlet of the oil stain separation and recovery unit 13 through a second connecting pipe. A second liquid pump 141 is connected on the pipe body of the clean water pipe 14. When it is necessary to flush the oil jacket pipe joint or provide auxiliary stirring during the degreasing process, the second liquid pump 141 is started to pump the treated clean liquid into the ring-shaped pipe 142, and then the liquid is sprayed out through the inclined nozzles 143 to form a spiral upward flow. The flow not only can flush the surface of the joint, but also can drive the processing liquid in the barrel to form a circulating flow, promote the uniform mixing of the reagent, and improve the contact efficiency with the surface of the joint.

[0041] To ensure that the concentration of the treatment liquid during the degreasing process always meets the process requirements, a medicine supplementing device is further connected to the pipe body of the clean water pipe 14, which includes a buffer bucket 151, one side of which is fixedly communicated with the clean water pipe 14 through a bypass pipe 152, the pipe body of the bypass pipe 152 is respectively connected with a circulating pump 153 and a spectrometer 154, the circulating pump 153 pumps part of the treatment liquid in the clean water pipe 14 into the buffer bucket 151 and backflows through the bypass pipe 152 to form a circulation, and the spectrometer 154 performs online component analysis on the circulating liquid to monitor the medicine concentration in the treatment liquid in real time. The top of the buffer bucket 151 is connected with a medicine bucket 157 through a medicine supplementing pipe, the pipe body of the medicine supplementing pipe is sequentially connected with a third liquid pump 155 and a second flow meter 156 from the medicine bucket 157 to the buffer bucket 151. When the spectrometer 154 detects that the medicine concentration is lower than the set value, the control system starts the third liquid pump 155 to quantitatively pump the medicine in the medicine bucket 157 into the buffer bucket 151, which is uniformly mixed and then enters the clean water pipe 14, so as to realize accurate supplement of the medicine and ensure the continuous and stable degreasing effect.

[0042] As shown in Figure 1 , a first sewage outlet pipe 10 is fixedly communicated with the bottom of the degreasing barrel 1, the pipe body of the first sewage outlet pipe 10 is connected with a first sewage pump 1001, in order to facilitate the complete discharge of impurities and oil stains deposited at the bottom of the barrel, the inner bottom surface of the degreasing barrel 1 is designed as a slope 101 inclined to one side, the inclination angle of the slope 101 is 10-30 degrees, and the bottom center position of the slope 101 is fixedly communicated with a vertical communication pipe 102, the lower end of the communication pipe 102 is fixedly communicated with the inlet end of the first sewage outlet pipe 10, so that the impurities deposited at the bottom of the barrel will slide down to the communication pipe 102 under the action of gravity, facilitating the complete pumping out of the first sewage pump 1001, and at the same time, a second sewage outlet pipe 11 is fixedly communicated with the top side wall of the degreasing barrel 1 near the top cover 2, the pipe body of the second sewage outlet pipe 11 is connected with a second sewage pump 111, in order to prevent the joint or bearing assembly from interfering with the liquid suction, the liquid suction end of the second sewage outlet pipe 11 extending into the degreasing barrel 1 is fixedly provided with a hollow liquid suction head 112 in the shape of a horn or a column, a large number of fine liquid suction holes are formed on the surface of the hollow liquid suction head 112, which can effectively suck the upper layer of oil-containing sewage and avoid the blockage of the pipeline caused by large impurities.

[0043] As shown in Figure 1 and Figure 2As shown, the liquid outlet ends of the first and second sewage outlet pipes 10 and 11 are jointly connected to the liquid inlet of the filtering unit 12, which comprises a magnetic filter 121, a bag type precision filter 122 and a tubular membrane separation device 123 connected in series through pipes, wherein the magnetic filter 121 is internally provided with high-strength magnetic rods to adsorb and remove ferromagnetic impurities contained in the sewage, thereby protecting the subsequent filtering equipment, the bag type precision filter 122 is internally provided with filtering bags (such as 5-20 microns) of different precision to intercept suspended particulate matters, colloids and part of macromolecular organic matters in the water, and the tubular membrane separation device 123 adopts solvent-resistant ceramic membrane or polymer membrane assembly to further remove small impurities and emulsified oil in the water by using the screening effect of the membrane. In addition, the liquid outlet of the filtering unit 12 is connected with the oil and dirt separation and recovery unit 13 through the first connecting pipe, which can adopt a centrifugal oil-water separator or a gas floatation separation device to separate and recover the trace amount of floating oil and dispersed oil remaining in the filtered water by using the density difference between oil and water or the bubble adsorption principle. The recovered oil and dirt can be treated and reused subsequently, thereby reducing resource waste. The clean water outlet of the oil and dirt separation and recovery unit 13 is fixedly communicated with the clean water pipe 14 through the second connecting pipe, so as to realize the recycling of the treatment liquid.

[0044] As shown in Figure 3 and Figure 4 As shown, the pipe body of the clean water pipe 14 is connected with the medicine supplementing device, and the solvent supplementing assembly 6 is arranged at the top of the degreasing barrel 1. The liquid level monitor 8 is arranged in the degreasing barrel 1 to monitor the liquid level of the contained treatment liquid.

[0045] The medicine supplementing device comprises a buffer barrel 151, one side of which is fixedly communicated with a bypass pipe 152, the pipe body of the bypass pipe 152 is respectively connected with a circulating pump 153 and a spectrometer 154, and the top of the buffer barrel 151 is connected with a medicine barrel 157 through a medicine supplementing pipe, the pipe body of the medicine supplementing pipe is connected with a third liquid pump 155 and a second flow meter 156. The solvent supplementing assembly 6 comprises a solvent inlet pipe 601, the pipe bodies on both sides of the solvent inlet pipe 601 are respectively connected with the degreasing barrel 1 and a solvent barrel, and the pipe body of the solvent inlet pipe 601 is connected with a first liquid pump 602 and a first flow meter 603. When the liquid level is lower than the set lower limit value, the control system starts the first liquid pump 602 in the solvent supplementing assembly 6 to supplement the solvent from the solvent barrel to the degreasing barrel 1 through the solvent inlet pipe 601, and the first flow meter 603 accurately measures the supplementing amount until the liquid level reaches the set upper limit value, so as to ensure that the amount of the treatment liquid during the degreasing process always meets the process requirements.

[0046] Specific to the present scheme, the drug bucket 157 contains a degreasing agent mother liquor, which can be an alkaline degreasing agent (such as a compound solution of sodium hydroxide, sodium carbonate and a surfactant) or a solvent type degreasing agent (such as a modified environmentally friendly solvent of petroleum ether and trichloroethylene), and the solvent bucket contains deionized water. The specific selection can be made according to the type of oil jacket coupling surface oil stain and environmental protection requirements.

[0047] When the spectrometer 154 detects that the concentration of the drug in the circulating liquid is lower than the set threshold (the effective component concentration of the solvent type degreasing agent is lower than 85%), the control system immediately starts the third liquid pump 155, and the high-concentration mother liquor in the drug bucket 157 is pumped into the buffer bucket 151 through the drug supplementing pipe. The second flow meter 156 monitors the supplementing amount in real time, and stops pumping when the preset supplementing amount is reached.

[0048] Another case is that the solvent will be reduced, and the liquid level is monitored in real time by the liquid level monitor 8. When it is detected that the liquid level is lower than the set lower threshold (such as 85% of the standard liquid level), a signal is sent to the controller. After the controller receives the signal, the solvent supplementing loop is immediately started: the first liquid pump 602 is opened to pump the deionized water in the solvent bucket into the degreasing barrel 1, and the first flow meter 603 works synchronously to accurately measure the amount of pumped solvent. The controller calculates the total volume of the solvent to be supplemented according to the liquid level difference. When the cumulative reading of the first flow meter 603 reaches the supplementing value, the controller closes the first liquid pump 602, and the solvent supplementing is completed. At this time, the processing liquid volume has been restored, but the effective alkali concentration has been further diluted. The spectrometer 154 detects the concentration of the drug in real time, and the controller compares the measured concentration with the set concentration value, calculates the deviation, and calculates the volume of the concentrated mother liquor to be supplemented and pumps the corresponding volume of mother liquor into the buffer bucket 151. Finally, it is sprayed into the degreasing barrel 1 through the spray head 143, realizes the dynamic balance and accurate control of the concentration of the processing liquid, ensures that the chemical properties of the processing liquid are always in the optimal state during the entire degreasing process, and ensures the stability and reliability of the degreasing quality of the oil jacket coupling.

[0049] Working principle: the inner side wall of the oil casing coupling to be treated is attached to the outer side wall of the hollow circular truncated cone support seat 402 of the bearing assembly, the top cover 2 and the bearing assembly are driven to descend by the winding assembly 3, so that the coupling is immersed in the treatment liquid in the degreasing barrel 1, then the ultrasonic generator 902 is started, high-frequency vibration energy is transmitted to the treatment liquid to generate cavitation bubbles, the impact force of the bubble rupture peels off the stubborn oil stains on the surface of the coupling, at the same time, the heat exchange medium heated by the heating assembly is introduced into the annular jacket, and the treatment liquid is uniformly heated to the optimum reaction temperature along the spiral plate 701, during the treatment process, the liquid level monitor 8 monitors the liquid level in real time, if the liquid level is lower than the set threshold, the control system starts the first liquid pump 602, and deionized water is supplemented into the degreasing barrel 1 from the solvent barrel through the solvent inlet pipe 601, the first flow meter 603 stops after metering to the preset value, the spectrometer 154 performs online component analysis on the circulating treatment liquid through the bypass pipe 152, when the concentration of the medicament is lower than the set value, the third liquid pump 155 is started to pump the high-concentration mother liquor in the medicine barrel 157 into the buffer barrel 151, and after mixing, the clean water pipe 14, the annular pipe 142 and the inclined nozzle 143 are used to spray into the degreasing barrel 1, forming a spiral upward flow to wash the coupling and promote the mixing of the medicament, realizing the supplement of the medicament, after the degreasing is completed, the first sewage pump 1001 pumps out the impurities deposited at the bottom of the barrel through the first sewage outlet pipe 10 and the communication pipe 102, and the second sewage pump 111 pumps out the upper layer of oily sewage through the second sewage outlet pipe 11 and the hollow liquid suction head 112, the two types of sewage enter the filtration unit 12 together, and then pass through the magnetic filter 121 to adsorb ferromagnetic impurities, the bag type precision filter 122 to intercept suspended particulate matter and colloid, and the tubular membrane separation device 123 to remove small impurities and emulsified oil, after filtration, the liquid enters the oil stain separation and recovery unit 13 to separate and recover trace floating oil and dispersed oil, and the clean liquid is circulated back to the degreasing barrel 1 through the clean water pipe 14, and finally the top cover 2 and the bearing assembly are lifted by the winding assembly 3, and the degreasing treatment of the coupling is completed.

[0050] It should be noted that the device structure and the drawings of the present application mainly describe the principle of the present application, and the setting of the power mechanism, power supply system and control system of the device is not completely described in the technical principle of the design principle, and the specific structure and principle of the power mechanism, power supply system and control system can be clearly understood by the skilled in the art on the premise of understanding the principle of the above-mentioned application.

[0051] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended embodiments and their equivalents.

Claims

1. An environmentally friendly degreasing device for phosphating oil casing couplings, comprising a degreasing tank (1), characterized in that: The degreasing barrel (1) is equipped with a bearing component, and the oil casing coupling to be phosphated is placed on the bearing component; The inner wall of the degreasing tank (1) is fixed with an annular pipe (142). Several nozzles (143) are fixedly connected to the pipe body of the annular pipe (142), which are inclined upward and whose water outlet direction forms an angle with the central axis of the degreasing tank (1). A clean water pipe (14) is fixedly connected to the outside of the ring pipe (142), and a second liquid pump (141) is connected to the pipe body of the clean water pipe (14). A second sewage outlet pipe (11) is fixedly connected to the top of the degreasing tank (1), and a second sewage pump (111) is connected to the pipe body of the second sewage outlet pipe (11). The bottom of the degreasing tank (1) is fixedly connected to a first sewage outlet pipe (10), and a first sewage pump (1001) is connected to the pipe body of the first sewage outlet pipe (10). A filter unit (12) is connected between the first sewage outlet pipe (10) and the second sewage outlet pipe (11). The outlet of the filter unit (12) is connected to an oil separation and recovery unit (13) through a first connecting pipe. The outlet of the oil separation and recovery unit (13) is fixedly connected to a clean water pipe (14) through a second connecting pipe. A replenishing device is connected to the body of the water purification pipe (14), a solvent replenishing component (6) is installed on the top of the degreasing tank (1), and a liquid level monitor (8) is installed inside the degreasing tank (1) to monitor the liquid level of the contained treatment liquid.

2. The degreasing device for phosphating oil casing couplings according to claim 1, characterized in that: The bottom of the degreasing tank (1) has a slope (101), and the bottom of the slope (101) is fixedly connected to a connecting pipe (102), which is fixedly connected to the first sewage outlet pipe (10).

3. The degreasing device for phosphating oil casing couplings according to claim 1, characterized in that: The filtration unit (12) includes a magnetic filter (121), a bag-type precision filter (122), and a tubular membrane separator (123) connected in series. The first sewage outlet pipe (10) and the second sewage outlet pipe (11) are connected to the magnetic filter (121).

4. The degreasing device for phosphating oil casing couplings according to claim 1, characterized in that: The medication device includes a buffer tank (151), a bypass pipe (152) is fixedly connected to one side of the buffer tank (151), and a circulation pump (153) and a spectrometer (154) are respectively connected to the body of the bypass pipe (152). The top of the buffer tank (151) is connected to a medicine tank (157) via a medicine replenishment pipe. A third liquid pump (155) and a second flow meter (156) are connected to the body of the medicine replenishment pipe.

5. The degreasing device for phosphating oil casing couplings according to claim 1, characterized in that: The solvent replenishment component (6) includes a solvent inlet pipe (601), the two sides of which are connected to the degreasing tank (1) and the solvent tank respectively. A first liquid pump (602) and a first flow meter (603) are connected to the pipe body of the solvent inlet pipe (601).

6. The degreasing device for phosphating oil casing couplings according to claim 1, characterized in that: The suction port of the second sewage outlet pipe (11) is fixed with a hollow suction head (112).

7. The degreasing device for phosphating oil casing couplings according to claim 1, characterized in that: The bottom of the bearing component is provided with an annular support plate (901), and several ultrasonic generators (902) are fixed on the plate body of the annular support plate (901).

8. The degreasing device for phosphating oil casing couplings according to claim 1, characterized in that: The degreasing barrel (1) has a jacket on its body, and a spiral plate (701) is fixed inside the jacket. The top and bottom of the jacket are respectively connected to a heat exchange medium inlet pipe (702) and a heat exchange medium outlet pipe. A heating component is connected between the heat exchange medium inlet pipe (702) and the heat exchange medium outlet pipe.

9. The degreasing device for phosphating oil casing couplings according to claim 1, characterized in that: The bearing component includes a hollow support plate (401), and a number of hollow frustum-shaped support seats (402) are fixed on the top of the hollow support plate (401). The oil casing coupling to be phosphated is fitted on the hollow frustum-shaped support seats (402).

10. The degreasing device for phosphating oil casing couplings according to claim 9, characterized in that: The top of the degreasing bucket (1) is provided with a stepped groove, the top cover (2) of the degreasing bucket (1) is adapted to the stepped groove, and the top cover (2) is fixed to the hollow support plate (401) by a connecting rod (403); The top of the degreasing bucket (1) is fixed with a support frame (5), and the top of the support frame (5) is provided with a winding assembly (3). The end of the winding rope of the winding assembly (3) is fixed to the top cover (2).

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