Water quality detection device for industrial circulating water system

Abstract

The invention belongs to the technical field of water quality detection, and particularly relates to a water quality detection device for an industrial circulating water system. The middle part of the top surface of the two-way box body is fixedly connected with a connecting valve body; the top end of the connecting valve body is bolted with a control valve; a groove-shaped sliding frame is mounted in the two-way box body in a sliding manner; a plurality of sampling bottles are uniformly arranged in the groove-shaped sliding frame; a driving unit is arranged at the bottom of the two-way box body; the groove-shaped sliding frame is driven by the driving unit to slide, so that the sampling bottle in the groove-shaped sliding frame is communicated with the connecting valve body, the control valve is driven to be opened, circulating water in the circulating water system enters the sampling bottle through the control valve and the connecting valve body, and the opening interval of the control valve is adjusted; the driving unit drives the groove-shaped sliding frame to convey the sampling bottles in a sliding manner; continuous and repeated timing sampling work is achieved, frequent sampling work of detection personnel is avoided, and detection of the pollution change condition of circulating water is facilitated.

Description

Technical Field

[0001] The present invention belongs to the technical field of water quality detection, and specifically relates to a water quality detection device for an industrial circulating water system. Background Art

[0002] An industrial circulating water system uses cooling water to reduce the heat generated during industrial equipment operation or processing, protecting the normal operation of the equipment and the processing; the industrial circulating water system is widely used in various industrial fields; and the industrial circulating water system also requires a water treatment device to purify the circulating water to prevent equipment corrosion and microbial growth, ensuring the long-term stable operation of the system.

[0003] A patent application with the publication number CN113203240A discloses an industrial circulating water system, including a furnace water jacket circulating water system, a boiler circulating water system, and an equipment cooling circulating water system arranged adjacent to each other in sequence. The furnace water jacket circulating water system includes a side-blowing furnace, a first hot water tank, a first cooling tower, and a first cold water tank arranged in sequence and connected to each other; the boiler circulating water system includes a condensate pump and a pure water tank connected to it through a steam pipeline; the equipment cooling circulating water system includes a second hot water tank, a second cooling tower, and a second cold water tank arranged in sequence and connected to each other.

[0004] During the operation of the industrial circulating water system, it is necessary to regularly detect the circulating water in the system to prevent water pollution; during detection, it is necessary for the detection personnel to take samples at the drainage outlet of the system pipeline and then conduct the detection, which is not only time-consuming and laborious, but also not convenient for detecting the pollution change of the circulating water.

[0005] Therefore, the present invention provides a water quality detection device for an industrial circulating water system. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A water quality detection device for an industrial circulating water system described in the present invention includes a double-pass box body; openings are provided at both ends of the double-pass box body; a connecting valve body is fixedly connected to the middle of the top surface of the double-pass box body; the inner cavity of the connecting valve body communicates with the inside of the double-pass box body; a control valve is bolted to the top end of the connecting valve body; the control valve is bolted to the pipeline of the circulating water system; a trough-shaped sliding frame is slidably installed inside the double-pass box body; a plurality of sampling bottles are evenly arranged inside the trough-shaped sliding frame; the top of the sampling bottle can communicate with the bottom of the connecting valve body; a driving unit is arranged at the bottom of the double-pass box body, and the driving unit can drive the trough-shaped sliding frame to slide; by driving the trough-shaped sliding frame to slide through the driving unit, the sampling bottles inside the trough-shaped sliding frame are communicated with the connecting valve body, and the control valve is driven to open, so that the circulating water in the circulating water system enters the sampling bottle through the control valve and the connecting valve body. After that, the control valve is driven to close to complete the sampling work; by adjusting the opening interval of the control valve and driving the trough-shaped sliding frame to slide by the driving unit to convey the sampling bottles; thus realizing continuous multiple timed sampling operations, not only avoiding the frequent sampling work of the detection personnel, but also being beneficial to detecting the pollution change situation of the circulating water.

[0008] Preferably, the driving unit includes a straight rack fixedly connected to the middle of the bottom surface of the trough-shaped sliding frame; gears are rotatably installed at the bottom surfaces of both ends of the double-pass box body; the gears are meshed with the straight rack; a first motor is fixedly connected to the middle of the bottom surface of the double-pass box body; synchronous wheels are fixedly connected to one end of the output shaft of the first motor and the rotating shaft of the gear; a synchronous belt is sleeved outside the synchronous wheel; realizing the sampling work of multiple sampling bottles in sequence; by setting two symmetrically arranged gears for synchronous driving, the stability of the movement of the trough-shaped sliding frame is improved.

[0009] Preferably, a pair of hinge seats are fixedly connected to the bottom of both ends of the double-pass box body; the two hinge seats are symmetrically arranged on both sides of the trough-shaped sliding frame; a rotating arm is hinged on the hinge seat; a torsion spring is arranged on the outer ring of the rotating shaft of the rotating arm; a cross bar is rotatably installed at one end of the two rotating arms away from the hinge seat; a pair of support wheels are rotatably installed on the outer ring of the cross bar; guide grooves are provided on both sides of the bottom surface of the trough-shaped sliding frame; the support wheels are slidably matched with the guide grooves; by setting the support wheels and rotating arms at both ends of the double-pass box body to support the trough-shaped sliding frame, the stability of the movement of the trough-shaped sliding frame is effectively improved, and then the stability of the movement of the sampling bottles is improved.

[0010] Preferably, a plurality of annular fixing pads are evenly bolted to the inner bottom surface of the trough-shaped sliding frame; arc-shaped vertical plates are fixedly connected to both sides of the annular fixing pad close to the inner wall of the trough-shaped sliding frame; the sampling bottle is installed between the two arc-shaped vertical plates; the outer walls of the sampling bottles are clamped by the arc-shaped vertical plates on both sides, thus effectively improving the stability of the sampling bottles.

[0011] Preferably, a plurality of support vertical rods are bolted around the outer ring of the annular fixing pad; on one side of the top end of the support vertical rod close to the center of the annular fixing pad, a clamping elastic bar is fixedly connected; in the middle of one side of the clamping elastic bar close to the support vertical rod, a support elastic bar is fixedly connected; the support elastic bar is in sliding contact with the support vertical rod; the plurality of clamping elastic bars firmly clamp and fix the sampling bottle, further improving the fixing stability of the sampling bottle.

[0012] Preferably, a top cap is installed on the top of the sampling bottle by threading; a liquid inlet is opened in the middle of the top cap; a sliding cylinder is slidably installed in the inner ring of the bottom of the connecting valve body; a plurality of sliding grooves are circumferentially opened in the inner ring of the bottom of the connecting valve body; a plurality of protrusions are circumferentially fixedly connected to the outer ring of the top of the sliding cylinder; the protrusions on the outer ring of the sliding cylinder are in sliding fit with the sliding grooves; the inner ring of the bottom of the sliding cylinder can be in sliding fit with the outer ring of the liquid inlet; a through groove is opened on the outer side of one of the sliding grooves; the through groove penetrates the outer wall of the connecting valve body; a cross beam is slidably installed in the through groove; the cross beam is fixedly connected to the protrusions on the outer ring of the sliding cylinder; a cross plate is fixedly connected to the top of the outer ring of the through groove; a lead screw is rotatably installed between the top surface of the cross plate and the top surface of the double-pass box body; the lead screw is in threaded fit with the cross beam; a second motor is fixedly connected to the top surface of the cross plate; the output shaft of the second motor is fixedly connected to the top end of the lead screw; thereby effectively collecting the circulating water in the circulating water system into the sampling cylinder and reducing the occurrence of leakage of the circulating water.

[0013] Preferably, a first sealing ring seat is fixedly connected to the inner ring of the liquid inlet of the top cap; a column is fixedly connected to the middle of the inner cavity bottom surface of the sampling bottle; a sliding rod is slidably installed in the middle of the column; a conical top cover is fixedly connected to the top end of the sliding rod; the outer periphery of the top of the conical top cover can be in extrusion contact with the inner periphery of the bottom of the first sealing ring seat; a spring cavity is opened in the inner ring of the bottom of the column; a spring is arranged in the spring cavity; the spring is sleeved on the outer ring of the sliding rod, and the top of the spring is connected to the outer ring of the sliding rod; thereby effectively preventing the circulating water sampled inside the sampling bottle from leaking and facilitating the tester to move the sampling bottle.

[0014] Preferably, air holes are formed inside the column; the air holes penetrate through the bottom of the column and the bottom of the sampling bottle; a plurality of air inlet holes are formed in a circumferential manner around the outer ring of the bottom of the air holes; the air inlet holes penetrate through the outer ring of the column; a sealing cavity is formed in the outer ring of the air holes; the sealing cavity is located between the air inlet holes and the spring cavity; a sealing plug is arranged inside the sealing cavity; the sealing plug is fixedly connected to the outer ring of the sliding rod; the sealing plug can be in pressing contact with the top of the sealing cavity; and it is characterized in that: a grid ring plate is fixedly connected to the top of the spring; the inner ring of the grid ring plate is fixedly connected to the outer ring of the sliding rod; air is discharged from the sampling bottle through the air inlet holes and the air holes, thus ensuring the pressure stability inside the sampling bottle and avoiding the air inside the sampling bottle from blocking the entry of the circulating water; thereby avoiding the increase of the air pressure inside the sampling bottle from blocking the entry of the circulating water and the possible breakage of the bottle body.

[0015] Preferably, a conical column is fixedly connected to the inner ring in the middle of the connecting valve body; a second sealing ring seat is fixedly connected to the inner ring at the top of the sliding cylinder; the conical column can be in sliding fit with the second sealing ring seat; the inside of the connecting valve body is blocked and sealed; thereby controlling the opening and closing of the connecting valve body.

[0016] Preferably, an elastic telescopic tube is fixedly connected between the middle of the connecting valve body and the top of the sliding cylinder; through the provided elastic telescopic tube, the elastic telescopic tube expands and contracts along with the sliding of the sliding cylinder, which can effectively avoid the leakage of the circulating water at the connecting valve body.

[0017] The beneficial effects of the present invention are as follows: 1. A water quality detection device for an industrial circulating water system according to the present invention includes a double - through box body, a connecting valve body, a control valve, a trough - shaped sliding frame, a sampling bottle and a driving unit; by driving the trough - shaped sliding frame to slide through the driving unit, the sampling bottle inside the trough - shaped sliding frame is communicated with the connecting valve body, and the control valve is driven to open, so that the circulating water in the circulating water system enters the sampling bottle through the control valve and the connecting valve body. Then, the control valve is driven to close to complete the sampling work; by adjusting the opening interval of the control valve and driving the trough - shaped sliding frame to slide to convey the sampling bottle; thus realizing continuous and multiple timed sampling operations, which not only avoids the frequent sampling work of the detection personnel, but also is beneficial to detecting the pollution change of the circulating water.

[0018] 2. A water quality detection device for an industrial circulating water system according to the present invention includes a top cap, a first sealing ring seat, a vertical column, a sliding rod, a conical top cover and a spring; the circulating water enters the inside of the sampling bottle through the middle of the first sealing ring seat, and the circulating water pushes the conical top cover at the bottom of the first sealing ring seat to move downward, so that a gap is formed between the first sealing ring seat and the conical top cover, allowing the circulating water to enter the inside of the sampling bottle; the conical top cover pushes the sliding rod downward, and pushes the spring to compress inside the spring cavity; when the sampling is completed, the spring resets inside the spring cavity, pushes the sliding rod and the conical top cover to move upward, and the conical top cover squeezes and contacts the first sealing ring seat, blocking and sealing the liquid inlet of the top cap, thereby sealing the sampled circulating water inside the sampling bottle; thus effectively avoiding the leakage of the sampled circulating water inside the sampling bottle and facilitating the tester to move the sampling bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the drawings.

[0020] Figure 1 is a perspective view of the present invention; Figure 2 is a bottom perspective view of the present invention; Figure 3 is a perspective view of the trough-shaped sliding frame in the present invention; Figure 4 is a perspective view of the sampling bottle and the annular fixing pad in the present invention; Figure 5 is a perspective view of the supporting vertical rod in the present invention; Figure 6 is a perspective view of the double-pass box body in the present invention; Figure 7 is an exploded view of the double-pass box body in the present invention; Figure 8 is a cross-sectional view of the double-pass box body and the connecting valve body in the present invention; Figure 9 is a cross-sectional view of the sampling bottle in the present invention; Figure 10 is a perspective view of the sliding rod in the present invention; In the figure: 1. Double-pass box body; 2. Connecting valve body; 3. Control valve; 4. Grooved slide; 5. Sampling bottle; 6. Straight rack; 7. Gear; 8. First motor; 9. Synchronous pulley; 10. Synchronous belt; 11. Hinge seat; 12. Rotary arm; 13. Cross bar; 14. Support wheel; 15. Guide groove; 16. Annular fixing pad; 17. Arc-shaped vertical plate; 18. Support vertical rod; 19. Clamping elastic strip; 20. Support elastic strip; 21. Top cap; 22. Slide cylinder; 23. Slide groove; 24. Through groove; 25. Cross beam; 26. Cross plate; 27. Lead screw; 28. Second motor; 29. First sealing ring seat; 30. Column; 31. Slide rod; 32. Conical top cover; 33. Spring cavity; 34. Spring; 35. Air hole; 36. Air inlet hole; 37. Sealing cavity; 38. Sealing plug; 39. Mesh ring plate; 40. Conical column; 41. Second sealing ring seat; 42. Elastic telescopic tube. Detailed implementation manners

[0021] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0022] As Figures 1 to 4 shown, a water quality detection device for an industrial circulating water system according to an embodiment of the present invention includes a double-pass box body 1; openings are provided at both ends of the double-pass box body 1; a connecting valve body 2 is fixedly connected to the middle of the top surface of the double-pass box body 1; the inner cavity of the connecting valve body 2 communicates with the inside of the double-pass box body 1; a control valve 3 is bolted to the top end of the connecting valve body 2; the control valve 3 is bolted to the pipeline of the circulating water system; a grooved slide 4 is slidably installed inside the double-pass box body 1; a plurality of sampling bottles 5 are evenly arranged inside the grooved slide 4; the top of the sampling bottle 5 can communicate with the bottom of the connecting valve body 2; a driving unit is arranged at the bottom of the double-pass box body 1, and the driving unit can drive the grooved slide 4 to slide. During operation, the control valve 3 is fixedly connected to the pipeline of the circulating water system, and then the connecting valve body 2 at the top of the double-pass box body 1 is connected to the control valve 3; a plurality of sampling bottles 5 are evenly placed inside the grooved slide 4 and fixed; one end of the grooved slide 4 is inserted into the double-pass box body 1; when sampling is required, the grooved slide 4 is driven to slide by the driving unit, so that the sampling bottle 5 inside the grooved slide 4 communicates with the connecting valve body 2, and the control valve 3 is driven to open, so that the circulating water in the circulating water system enters the sampling bottle 5 through the control valve 3 and the connecting valve body 2, and then the control valve 3 is driven to close to complete the sampling work; by adjusting the opening interval of the control valve 3 and driving the grooved slide 4 to slide by the driving unit to convey a plurality of sampling bottles 5 to communicate with the connecting valve body 2 in sequence, continuous multiple timed sampling work is realized, which not only avoids the frequent sampling work of the detection personnel, but also is beneficial to detecting the pollution change situation of the circulating water.

[0023] As Figure 2 、 Figures 6 to 8 shown, the driving unit includes a straight rack 6 fixedly connected to the middle of the bottom surface of the grooved carriage 4; both ends of the bottom surface of the double-pass box body 1 are rotatably installed with gears 7; the gear 7 meshes with the straight rack 6; a first motor 8 is fixedly connected to the middle of the bottom surface of the double-pass box body 1; one end of the output shaft of the first motor 8 and one end of the rotating shaft of the gear 7 are both fixedly connected with a synchronous pulley 9; a synchronous belt 10 is sleeved outside the synchronous pulley 9; During operation, the first motor 8 drives the synchronous pulley 9 to rotate. Through the transmission of the synchronous belt 10, the gears 7 on both sides are driven to rotate synchronously. The gear 7 drives the straight rack 6 meshed with it to slide, driving the grooved carriage 4 to slide along the double-pass box body 1, and successively driving the sampling bottles 5 to be connected to the bottom of the connecting valve body 2, thereby realizing the sampling work of multiple sampling bottles 5 in sequence; By setting two symmetrically arranged gears 7 for synchronous drive, the stability of the movement of the grooved carriage 4 is improved.

[0024] As Figure 2 、 Figures 6 to 8 shown, a pair of hinge seats 11 are fixedly connected to both ends of the bottom of the double-pass box body 1; the two hinge seats 11 are symmetrically arranged on both sides of the grooved carriage 4; a rotating arm 12 is hinged on the hinge seat 11; a torsion spring is arranged outside the rotating shaft of the rotating arm 12; a cross bar 13 is rotatably installed at one end of the two rotating arms 12 away from the hinge seat 11; a pair of support wheels 14 are rotatably installed outside the cross bar 13; guide grooves 15 are formed on both sides of the bottom surface of the grooved carriage 4; the support wheels 14 are in sliding fit with the guide grooves 15; During operation, before inserting one end of the grooved carriage 4 into the inside of the double-pass box body 1, push down the cross bar 13 on this side, driving the two rotating arms 12 to rotate downward, so that the two support wheels 14 move downward, avoiding the influence of the support wheels 14 and the cross bar 13 on the installation of the grooved carriage 4; After one end of the grooved carriage 4 is inserted into the inside of the double-pass box body 1, release the cross bar 13. Driven by the torsion spring, the rotating arm 12 rotates upward to reset, pushing the support wheel 14 to move upward, and the support wheel 14 slides into the guide groove 15 on the bottom surface of the grooved carriage 4; by setting the support wheels 14 and the rotating arms 12 at both ends of the double-pass box body 1 to support the grooved carriage 4, the stability of the movement of the grooved carriage 4 is effectively improved, and then the stability of the movement of the sampling bottle 5 is improved.

[0025] As Figures 3 to 4 shown, a plurality of annular fixing pads 16 are evenly bolted to the inner bottom surface of the grooved carriage 4; arc-shaped vertical plates 17 are fixedly connected to both sides of the annular fixing pad 16 close to the inner wall of the grooved carriage 4; the sampling bottle 5 is installed between the two arc-shaped vertical plates 17; When working, when a plurality of sampling bottles 5 are evenly placed inside the trough-shaped carriage 4, the sampling bottles 5 are placed on the top surface of the annular fixing pad 16, and the outer walls of the sampling bottles 5 are clamped by the arc-shaped vertical plates 17 on both sides, thereby effectively improving the stability of the sampling bottles 5.

[0026] As Figures 3 to 5 As shown, a plurality of support vertical rods 18 are bolted around the outer ring of the annular fixing pad 16; a clamping elastic strip 19 is fixedly connected to one side of the top end of the support vertical rod 18 close to the center of the annular fixing pad 16; a support elastic strip 20 is fixedly connected to the middle of the side of the clamping elastic strip 19 close to the support vertical rod 18; the support elastic strip 20 is in sliding contact with the support vertical rod 18; When working, when the outer walls of the sampling bottles 5 are clamped by the arc-shaped vertical plates 17 on both sides, at the same time, the outer walls of the sampling bottles 5 will generate an outward extrusion on the clamping elastic strips 19, pushing the support elastic strip 20 to deform and press the support vertical rod 18; the elastic forces of the support elastic strip 20 and the clamping elastic strip 19 cause the clamping elastic strip 19 to squeeze the outer wall of the sampling bottle 5; a plurality of clamping elastic strips 19 firmly clamp and fix the sampling bottle 5; thereby further improving the fixing stability of the sampling bottle 5.

[0027] As Figure 1 、 Figures 6 to 9 As shown, a top cap 21 is threadedly installed at the top of the sampling bottle 5; a liquid inlet is opened in the middle of the top cap 21; a sliding cylinder 22 is slidably installed in the inner ring at the bottom of the connecting valve body 2; a plurality of sliding grooves 23 are circumferentially opened in the inner ring at the bottom of the connecting valve body 2; a plurality of protrusions are circumferentially fixedly connected to the outer ring at the top of the sliding cylinder 22; the protrusions on the outer ring of the sliding cylinder 22 are in sliding fit with the sliding grooves 23; the inner ring at the bottom of the sliding cylinder 22 can be in sliding fit with the outer ring at the top of the liquid inlet of the top cap 21; a through groove 24 is opened on the outside of one of the sliding grooves 23; the through groove 24 penetrates through the outer wall of the connecting valve body 2; a cross beam 25 is slidably installed in the through groove 24; the cross beam 25 is fixedly connected to the protrusions on the outer ring of the sliding cylinder 22; a cross plate 26 is fixedly connected to the top of the outer ring of the through groove 24; a lead screw 27 is rotatably installed between the top surface of the cross plate 26 and the top surface of the double-pass box body 1; the lead screw 27 is in threaded fit with the cross beam 25; a second motor 28 is fixedly connected to the top surface of the cross plate 26; the output shaft of the second motor 28 is fixedly connected to the top end of the lead screw 27; During sampling, after the sampling bottle 5 is aligned with the connecting valve body 2, at this time, the second motor 28 drives the lead screw 27 to rotate, driving the cross beam 25 to slide downward along the through groove 24, driving the sliding cylinder 22 to slide downward along the sliding groove 23, so that the inner ring at the bottom of the sliding cylinder 22 slides and sleeves on the outer ring at the top of the top cap 21 at the top of the sampling bottle 5, so that the sampling bottle 5 is communicated with the connecting valve body 2; the circulating water in the circulating water system enters the sampling bottle 5 through the control valve 3, the connecting valve body 2 and the sliding cylinder 22; After that, after the sampling is completed, the driving control valve 3 is closed, and the second motor 28 drives the lead screw 27 to rotate in the reverse direction, driving the cross beam 25 and the sliding cylinder 22 to slide upward, so that the sliding cylinder 22 is separated from the top cap 21; it is beneficial for the sampling bottle 5 to slide out along with the trough-shaped sliding frame 4. Thus, the circulating water in the circulating water system is effectively collected into the sampling cylinder 5, reducing the occurrence of circulating water leakage.

[0028] As Figures 7 to 10 shown, a first sealing ring seat 29 is fixedly connected to the inner ring of the liquid inlet of the top cap 21; a column 30 is fixedly connected to the middle of the inner cavity bottom surface of the sampling bottle 5; a sliding rod 31 is slidably installed in the middle of the column 30; a conical top cover 32 is fixedly connected to the top end of the sliding rod 31; the outer periphery of the top of the conical top cover 32 can be in pressing contact with the inner periphery of the bottom of the first sealing ring seat 29; a spring cavity 33 is formed in the inner ring of the bottom of the column 30; a spring 34 is arranged inside the spring cavity 33; the spring 34 is sleeved on the outer circle of the sliding rod 31, and the top of the spring 34 is connected to the outer circle of the sliding rod 31. During operation, when the circulating water in the circulating water system passes through the control valve 3, the connecting valve body 2 and the sliding cylinder 22 and enters the top cap 21, the circulating water enters the inside of the sampling bottle 5 through the middle of the first sealing ring seat 29. The circulating water pushes the conical top cover 32 at the bottom of the first sealing ring seat 29 to move downward, so that a gap is formed between the first sealing ring seat 29 and the conical top cover 32, allowing the circulating water to enter the inside of the sampling bottle 5; the conical top cover 32 pushes the sliding rod 31 downward, pushing the spring 34 to compress inside the spring cavity 33. When the sampling is completed, the spring 34 resets inside the spring cavity 33, pushing the sliding rod 31 and the conical top cover 32 to move upward. The conical top cover 32 is in pressing contact with the first sealing ring seat 29, blocking and sealing the liquid inlet of the top cap 21, thereby sealing the sampled circulating water inside the sampling bottle 5. When the tester conducts the test, only need to remove the top cap 21 on the top of the sampling bottle 5, so that the conical top cover 32 is separated from the first sealing ring seat 29, and the sampled circulating water can be poured out of the sampling bottle 5. Thus, it effectively avoids the leakage of the sampled circulating water inside the sampling bottle 5, facilitating the tester to move the sampling bottle 5.

[0029] As Figures 7 to 10As shown, an air hole 35 is formed inside the upright column 30; the air hole 35 penetrates through the bottom of the upright column 30 and the bottom of the sampling bottle 5; a plurality of air inlet holes 36 are formed around the outer ring of the bottom of the air hole 35; the air inlet holes 36 penetrate through the outer ring of the upright column 30; a sealing cavity 37 is formed on the outer ring of the air hole 35; the sealing cavity 37 is located between the air inlet holes 36 and the spring cavity 33; a sealing plug 38 is arranged inside the sealing cavity 37; the sealing plug 38 is fixedly connected to the outer ring of the sliding rod 31; the sealing plug 38 can be in pressing contact with the top of the sealing cavity 37; a grid ring plate 39 is fixedly connected to the top of the spring 34; the inner ring of the grid ring plate 39 is fixedly connected to the outer ring of the sliding rod 31; Since the inner ring of the bottom of the sliding cylinder 22 in the present invention is in relatively close contact with the outer ring of the liquid inlet of the top of the sampling bottle 5, when the circulating water enters the sampling bottle 5, the air inside will be squeezed, causing the internal air pressure to rise, which will hinder the circulating water from entering the sampling bottle 5. In severe cases, it may even cause the sampling bottle 5 to be over-pressurized and the bottle body to be damaged; To solve the above problems, when the circulating water pushes the conical top cover 32 and the sliding rod 31 to move downward in the present invention, the sliding rod 31 drives the sealing plug 38 to slide downward inside the sealing cavity 37, so that a gap is generated between the top of the sealing cavity 37 and the sealing plug 38, enabling the inside of the sampling bottle 5 to communicate with the outside through the air inlet holes 36 and the air hole 35; after the circulating water enters the inside of the sampling bottle 5, the air inside the sampling bottle 5 is squeezed, and the air is discharged from the sampling bottle 5 through the air inlet holes 36 and the air hole 35, thus avoiding the situation that the internal air pressure of the sampling bottle 5 rises to block the entry of the circulating water and possible damage to the bottle body; After the sampling is completed, the spring 34 resets inside the spring cavity 33, pushing the sliding rod 31 and the conical top cover 32 to move upward. The sliding rod 31 drives the sealing plug 38 to slide upward inside the sealing cavity 37, so that the sealing plug 38 blocks and seals the top of the sealing cavity 37, thus avoiding the leakage of the sampled circulating water from the air hole 35 in the sampling bottle 5.

[0030] As Figures 7 to 8 As shown, a conical column 40 is fixedly connected to the inner ring of the middle part of the connecting valve body 2; a second sealing ring seat 41 is fixedly connected to the inner ring of the top of the sliding cylinder 22; the conical column 40 can be in sliding fit with the second sealing ring seat 41; During operation, during sampling, when the sliding cylinder 22 slides downward and sleeves on the outer ring of the top of the top cap 21, the sliding cylinder 22 drives the second sealing ring seat 41 to move downward, so that the second sealing ring seat 41 is separated from the conical column 40, enabling the circulating water in the circulating water system to pass through the connecting valve body 2; After sampling is completed, when the sliding cylinder 22 slides upward and separates from the top cap 21, the sliding cylinder 22 drives the second sealing ring seat 41 to move upward, so that the conical column 40 is inserted into the second sealing ring seat 41, blocking and sealing the interior of the connecting valve body 2; thus controlling the opening and closing of the connecting valve body 2.

[0031] As Figures 7 to 8 shown, an elastic telescopic tube 42 is fixedly connected between the middle of the connecting valve body 2 and the top of the sliding cylinder 22; by providing the elastic telescopic tube 42, the elastic telescopic tube 42 expands and contracts along with the sliding of the sliding cylinder 22, effectively avoiding the leakage of circulating water at the connecting valve body 2.

[0032] Working principle: The control valve 3 is fixedly connected to the pipeline of the circulating water system, and then the connecting valve body 2 at the top of the double-pass box body 1 is connected to the control valve 3; a plurality of sampling bottles 5 are evenly placed inside the trough-shaped sliding frame 4, the sampling bottles 5 are placed on the top surface of the annular fixing pad 16, and the outer walls of the sampling bottles 5 are clamped by the arc-shaped vertical plates 17 on both sides. At the same time, the outer walls of the sampling bottles 5 will exert an outward extrusion on the clamping elastic strips 19, pushing the supporting elastic strips 20 to deform and press the supporting vertical rods 18; the elastic forces of the supporting elastic strips 20 and the clamping elastic strips 19 cause the clamping elastic strips 19 to squeeze the outer walls of the sampling bottles 5; a plurality of clamping elastic strips 19 firmly clamp and fix the sampling bottles 5; Push down the cross bar 13 on this side, drive the swing arms 12 on both sides to rotate downward, so that the supporting wheels 14 on both sides move downward, insert one end of the trough-shaped sliding frame 4 into the double-pass box body 1, release the cross bar 13, and the swing arms 12 rotate upward and reset under the drive of the torsion spring, pushing the supporting wheels 14 to move upward, and the supporting wheels 14 slide into the guide groove 15 on the bottom surface of the trough-shaped sliding frame 4; the trough-shaped sliding frame 4 is supported by the supporting wheels 14 and the swing arms 12 provided at both ends of the double-pass box body 1; The first motor 8 drives the synchronous pulley 9 to rotate. Through the transmission of the synchronous belt 10, the gears 7 on both sides are driven to rotate synchronously. The gears 7 drive the straight racks 6 engaged with them to slide, driving the trough-shaped sliding frame 4 to slide along the double-pass box body 1; During sampling, the grooved carriage 4 is driven to slide by the driving unit, so that the sampling bottle 5 inside the grooved carriage 4 is aligned with the connecting valve body 2; the second motor 28 drives the lead screw 27 to rotate, driving the cross beam 25 to slide downward along the through groove 24, driving the sliding cylinder 22 to slide downward along the sliding groove 23, so that the inner ring at the bottom of the sliding cylinder 22 slidably sleeves the outer ring at the top of the top cap 21 at the top of the sampling bottle 5; at the same time, the sliding cylinder 22 drives the second sealing ring seat 41 to move downward, so that the second sealing ring seat 41 is separated from the conical column 40; the control valve 3 is driven to open, so that the circulating water in the circulating water system passes through the control valve 3, the connecting valve body 2 and the sliding cylinder 22 and enters the top cap 21, the circulating water enters the inside of the sampling bottle 5 through the middle of the first sealing ring seat 29, and the circulating water pushes the conical top cover 32 at the bottom of the first sealing ring seat 29 to move downward, so that a gap is formed between the first sealing ring seat 29 and the conical top cover 32, so that the circulating water enters the inside of the sampling bottle 5; the conical top cover 32 pushes the sliding rod 31 to move downward, pushing the spring 34 to compress inside the spring cavity 33; at the same time, the sliding rod 31 drives the sealing plug 38 to slide downward inside the sealing cavity 37, so that a gap is generated between the top of the sealing cavity 37 and the sealing plug 38, so that the inside of the sampling bottle 5 is communicated with the outside through the air inlet hole 36 and the air hole 35; after the circulating water enters the inside of the sampling bottle 5, the air inside the sampling bottle 5 is squeezed, so that the air is discharged from the sampling bottle 5 through the air inlet hole 36 and the air hole 35. When the sampling is completed, the control valve 3 is driven to close, the second motor 28 drives the lead screw 27 to rotate in the reverse direction, driving the cross beam 25 and the sliding cylinder 22 to slide upward, so that the sliding cylinder 22 is separated from the top cap 21; at the same time, the sliding cylinder 22 drives the second sealing ring seat 41 to move upward, so that the conical column 40 is inserted into the inside of the second sealing ring seat 41, blocking and sealing the inside of the connecting valve body 2; at the same time, the spring 34 is reset inside the spring cavity 33, pushing the sliding rod 31 and the conical top cover 32 to move upward, the sliding rod 31 drives the sealing plug 38 to slide upward inside the sealing cavity 37, so that the sealing plug 38 blocks and seals the top of the sealing cavity 37; the conical top cover 32 moves upward and squeezes and contacts the first sealing ring seat 29, blocking and sealing the liquid inlet of the top cap 21. Thus, continuous multiple timed sampling operations are realized, which not only avoids the frequent sampling operations of the detection personnel, but also is beneficial to detecting the pollution change situation of the circulating water.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A water quality detection device for an industrial circulating water system, characterized in that: The invention comprises a double-pass box (1); both ends of the double-pass box (1) are provided with openings; a connecting valve body (2) is fixedly connected to the middle of the top surface of the double-pass box (1); the inner cavity of the connecting valve body (2) is connected to the inside of the double-pass box (1); a control valve (3) is bolted to the top of the connecting valve body (2); the control valve (3) is bolted to the pipeline of the circulating water system; a groove-shaped slide (4) is slidably installed inside the double-pass box (1); a plurality of sampling bottles (5) are evenly arranged inside the groove-shaped slide (4); the top of the sampling bottle (5) can be connected to the bottom of the connecting valve body (2); a driving unit is arranged at the bottom of the double-pass box (1), and the driving unit can drive the groove-shaped slide (4) to slide.

2. A water quality detection device for an industrial circulating water system according to claim 1, characterized in that: The driving unit comprises a spur rack (6) fixedly connected to the middle of the bottom surface of the grooved slide (4); gears (7) are rotatably mounted on the bottom surfaces of both ends of the double-pass housing (1); the gears (7) are meshed with the spur rack (6); a No. 1 motor (8) is fixedly connected to the middle of the bottom surface of the double-pass housing (1); a synchronous wheel (9) is fixedly connected to the output shaft of the No. 1 motor (8) and one end of the rotating shaft of the gear (7); and a synchronous belt (10) is provided on the outer ring of the synchronous wheel (9).

3. A water quality detection device for an industrial circulating water system according to claim 2, characterized in that: A pair of hinge seats (11) are fixedly connected to the bottom of both ends of the double-pass box (1); the two hinge seats (11) are symmetrically arranged on both sides of the groove-shaped slide (4); a rotating arm (12) is hinged on the hinge seat (11); a torsion spring is arranged on the outer ring of the rotating shaft of the rotating arm (12); a cross bar (13) is rotatably mounted on one end of the two rotating arms (12) away from the hinge seat (11); a pair of supporting wheels (14) are rotatably mounted on the outer ring of the cross bar (13); guide grooves (15) are provided on both sides of the bottom surface of the groove-shaped slide (4); and the supporting wheels (14) are slidably matched with the guide grooves (15).

4. The water quality detection device for an industrial circulating water system according to claim 1, characterized in that: The inner bottom surface of the groove-shaped slide (4) is evenly bolted with a plurality of annular fixing pads (16); both sides of the annular fixing pads (16) close to the inner wall of the groove-shaped slide (4) are fixedly connected with arc-shaped vertical plates (17); and the sampling bottle (5) is installed between the two arc-shaped vertical plates (17).

5. A water quality detection device for an industrial circulating water system according to claim 4, characterized in that: The outer ring of the annular fixing pad (16) is bolted with a plurality of supporting uprights (18); a clamping spring bar (19) is fixedly connected to the top of the supporting uprights (18) on one side close to the center of the annular fixing pad (16); a supporting spring bar (20) is fixedly connected to the middle of the side of the clamping spring bar (19) close to the supporting uprights (18); and the supporting spring bar (20) is in sliding contact with the supporting uprights (18).

6. The water quality detection device for an industrial circulating water system according to claim 1, characterized in that: The top thread of the sampling bottle (5) is provided with a top cap (21); a liquid inlet is provided in the middle of the top cap (21); a slide tube (22) is slidably provided on the bottom inner ring of the connecting valve body (2); a plurality of slide grooves (23) are provided around the bottom inner ring of the connecting valve body (2); a plurality of protrusions are fixedly connected around the top outer ring of the slide tube (22); the protrusions on the outer ring of the slide tube (22) are slidably matched with the slide grooves (23); the bottom inner ring of the slide tube (22) can be slidably matched with the outer ring of the liquid inlet; a through groove (24) is provided on the outer side of the slide groove (23); the through groove (24) is provided on the outer side of the slide groove (23); The groove (24) passes through the outer wall of the connecting valve body (2); a crossbeam (25) is slidably installed inside the through groove (24); the crossbeam (25) is fixedly connected to the protrusion of the outer ring of the slide cylinder (22); a cross plate (26) is fixedly connected to the top of the outer ring of the through groove (24); a screw rod (27) is rotatably installed between the cross plate (26) and the top surface of the double-pass box (1); the screw rod (27) is threadedly matched with the crossbeam (25); a second motor (28) is fixedly connected to the top surface of the cross plate (26); and the output shaft of the second motor (28) is fixedly connected to the top end of the screw rod (27).

7. A water quality detection device for an industrial circulating water system according to claim 6, characterized in that: The inner ring of the liquid inlet of the top cap (21) is fixedly connected to a No. 1 sealing ring seat (29); a column (30) is fixedly connected to the middle of the bottom surface of the inner cavity of the sampling bottle (5); a sliding rod (31) is slidably installed in the middle of the column (30); a conical top cover (32) is fixedly connected to the top of the sliding rod (31); the top outer periphery of the conical top cover (32) can be squeezed and contacted with the bottom inner periphery of the No. 1 sealing ring seat (29); a spring cavity (33) is opened in the bottom inner ring of the column (30); a spring (34) is arranged inside the spring cavity (33); the spring (34) is sleeved on the outer ring of the sliding rod (31), and the top of the spring (34) is connected to the outer ring of the sliding rod (31).

8. A water quality detection device for an industrial circulating water system according to claim 7, characterized in that: An air hole (35) is provided inside the column (30); the air hole (35) passes through the bottom of the column (30) and the bottom of the sampling bottle (5); a plurality of air inlet holes (36) are provided around the outer ring of the bottom of the air hole (35); the air inlet hole (36) passes through the outer ring of the column (30); a sealing cavity (37) is provided on the outer ring of the air hole (35); the sealing cavity (37) is located between the air inlet hole (36) and the spring cavity (33); a sealing plug (38) is provided inside the sealing cavity (37); the sealing plug (38) is fixedly connected to the outer ring of the sliding rod (31); the sealing plug (38) can be pressed into contact with the top of the sealing cavity (37); it is characterized in that: a mesh ring plate (39) is fixedly connected to the top of the spring (34); the inner ring of the mesh ring plate (39) is fixedly connected to the outer ring of the sliding rod (31).

9. The water quality detection device for an industrial circulating water system according to claim 6, characterized in that: A conical column (40) is fixedly connected to the middle inner ring of the connecting valve body (2); a second sealing ring seat (41) is fixedly connected to the top inner ring of the sliding cylinder (22); and the conical column (40) is capable of slidingly cooperating with the second sealing ring seat (41).

10. A water quality detection device for an industrial circulating water system according to claim 6, characterized in that: An elastic telescopic tube (42) is fixedly connected between the middle portion of the connecting valve body (2) and the top of the slide cylinder (22).

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