CN215727661U

CN215727661U - COD monitoring device for determining digestion time according to field conditions

Info

Publication number: CN215727661U
Application number: CN202122316465.6U
Authority: CN
Inventors: 蒋京东; 蔡桂祥; 柏祝玲; 江帅
Original assignee: Suzhou Kete Environmental Protection Co ltd
Current assignee: Suzhou Kete Environmental Protection Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-02-01
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a COD monitoring device for determining digestion time according to field conditions, which comprises a base and a device box body, wherein an opening of the device box body is forwards arranged at the upper end of the base, a top seat is arranged at the upper end of the device box body, a machine box is arranged in the upper half section of the device box body, a novel hose sealing device is additionally arranged in the lateral inner part of the device box body of the COD monitoring device close to the lower side, the size of a conveying channel of a conveying hose A can be changed after the novel hose sealing device is manually adjusted, the flow speed of liquid in the conveying hose A can be changed according to the change of the size of the conveying channel in the conveying hose A, so that the hose sealing device can play a role of a stop valve to change the flow speed of the conveying hose A, the input cost of the device is far less than that of the stop valve, and the installation mode of the device is simpler and quicker than that of the traditional stop valve installation mode, thereby can reduce the input cost and the use cost of whole COD monitoring devices.

Description

COD monitoring device for determining digestion time according to field conditions

Technical Field

The utility model belongs to the technical field related to COD monitoring, and particularly relates to a COD monitoring device for determining digestion time according to field conditions.

Background

COD monitoring is also called chemical oxygen demand determination, which means that under the specified conditions, the amount of oxidant consumed by substances which are easy to be oxidized in a water body is determined, expressed by the number of milligrams of oxygen consumed by each liter of water sample, and is an important index for explaining the content of organic substances in the water body and evaluating the organic pollution condition of the water body.

The prior COD monitoring device technology has the following problems: when using, the existing COD monitoring device needs to control the conveying flow rate of various solvents through a peristaltic pump and a concatemer valve, but the operation of controlling the flow rate of the solvents through the concatemer valve is more complicated, and when solvent pipelines are more, the concatemer valve easily makes a fault in the control of the flow rate of the solvents, and the damaged COD monitoring device has higher maintenance cost, so that the use, the investment and the maintenance cost of the whole COD monitoring device can be increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a COD monitoring device for determining digestion time according to field conditions, and aims to solve the problems that when a plurality of solvent pipelines are provided in the background art, a concatemer valve is easy to control the flow rate of a solvent, the maintenance cost is high after the concatemer valve is damaged, and the use and investment of the whole COD monitoring device and the maintenance cost are increased.

In order to achieve the purpose, the utility model provides the following technical scheme: a COD monitoring device for determining digestion time according to on-site conditions comprises a base and a device box body, wherein an opening of the device box body is forwards arranged at the upper end of the base, a top seat is arranged at the upper end of the device box body, a machine box is arranged in the upper half section of the device box body, a measuring standard cylinder, a reagent B cylinder, a waste liquid cylinder, a zero standard cylinder, a reagent C cylinder, a reagent A cylinder and a water sample cylinder are sequentially arranged on the lower side of the machine box from right to left, the inner walls of the left end and the right end of the device box body close to the lower side are connected with a hose sealing device, a multi-union valve is arranged on the outer wall of the front end of the machine box close to the lower side, and conveying hoses A are arranged at the upper ends of the measuring standard cylinder, the reagent B cylinder, the waste liquid cylinder, the zero standard cylinder, the reagent C cylinder, the reagent A cylinder and the water sample cylinder, the upper ends of seven conveying hoses A penetrate through a hose sealing device and are communicated and connected with a multi-connected valve, the hose sealing device comprises fixing plates, a sealing strip plate, a pipe penetrating opening, rectangular sealing grooves, an operating hand wheel, a silica gel pad, a pressing plate, adjusting screw holes and adjusting screw rods, the fixing plates are arranged at the left end and the right end of the sealing strip plate respectively, the two fixing plates are connected to the inner walls of the left end and the right end of a device box body respectively through screws, seven rectangular sealing grooves penetrate through the vertical inner part of the sealing strip plate at equal intervals, the rear ends of the right sides of the seven rectangular sealing grooves are connected with the pipe penetrating opening, the adjusting screw holes are connected to the centers of the front ends of the seven rectangular sealing grooves, the adjusting screw rods penetrate through the inner parts of the seven adjusting screw holes, the operating hand wheels are arranged at the front ends of the seven adjusting screw rods, and the rear ends of the seven adjusting screw rods are connected with the pressing plate through rotating shafts, the seven tightening plates are respectively arranged inside the front sides of the seven rectangular closed grooves, and silica gel pads are arranged on the outer walls of the rear ends of the seven tightening plates.

Preferably, the upper side of the concatemer valve is connected with a liquid level meter through a hose, the top end of the liquid level meter is connected with a conveying hose B, the other end of the conveying hose B is connected with a peristaltic pump, the right end of the upper side of the concatemer valve is connected with a conveying hose C, the other end of the conveying hose C is connected with a digestion cuvette, and a light inspection mechanism is arranged on the circular inner wall of the digestion cuvette.

Preferably, the machine case is close to the inside control screen that still embeds of upside front end outer wall, the control screen comprises display screen and control button, the display screen is high definition LCD screen, control button adopts the design of physics push type.

Preferably, the base, the device box body and the top seat are all made of stainless steel, the device box body is fixedly connected with the base and the top seat through welding, and the front end of the device box body is further connected with a box door through a hinge.

Preferably, volume mark section of thick bamboo, a reagent B section of thick bamboo, a waste liquid section of thick bamboo, a zero mark section of thick bamboo, a reagent C section of thick bamboo, a reagent A section of thick bamboo and a water sample section of thick bamboo all adopt the design of transparent cylinder, volume mark section of thick bamboo, a reagent B section of thick bamboo, a waste liquid section of thick bamboo, a zero mark section of thick bamboo, a reagent C section of thick bamboo, a reagent A section of thick bamboo and a water sample section of thick bamboo are inside all with the inside intercommunication of delivery hose A.

Preferably, the silica gel pad adopts soft silica gel to make, silica gel pad and clamp plate pass through adhesive fixed connection, the horizontal width of wearing the mouth of pipe equals with conveying hose A's outside diameter.

Compared with the prior art, the utility model provides the COD monitoring device for determining the digestion time according to the field condition, and the device has the following beneficial effects:

1. the utility model adds a novel hose sealing device in the transverse inner part of the device box body of the COD monitoring device close to the lower side, and a measuring standard cylinder, a reagent B cylinder, a waste liquid cylinder, a zero standard cylinder, a reagent C cylinder, a reagent A cylinder and a water sample cylinder which are arranged at the upper end of a base correspondingly penetrate through the hose sealing device and are connected with a concatemer valve, and the size of a conveying channel of the conveying hose A can be changed after the novel hose sealing device is manually adjusted, the flow speed of liquid in the conveying hose A can be changed according to the change of the size of the conveying channel in the conveying hose A, so that the hose sealing device can play the role of a stop valve to change the flow speed of the conveying hose A, the input cost of the device is far less than that of the stop valve, and the installation mode of the device is simpler and quicker than that of the traditional stop valve, therefore, the input cost and the use cost of the whole COD monitoring device can be reduced, and the novel hose sealing device can change the conveying flow rate of each conveying hose A and can replace the conveying flow rate to be a valve when the concatemer valve loses the effect, so that the whole COD monitoring device can be normally used;

2. the specific use mode of the hose sealing device is as follows, when the hose sealing device is installed and used, firstly, the installation position of the device in the device box body needs to be determined, then the sealing strip plate of the hose sealing device is transversely installed in the device box body through the fixing plates at the left end and the right end, then seven conveying hoses A at the rear side of the sealing strip plate are correspondingly placed in seven through-pipe openings, then the conveying hoses A in the seven through-pipe openings are forcibly pushed forwards, so that the seven conveying hoses A are respectively pushed into seven rectangular sealing grooves, the whole hose sealing device can be well installed and debugged, when the flow rate of one of the conveying hoses needs to be changed, the adjusting screw rod only needs to be driven to rotate through the operating hand wheel, and the adjusting screw rod penetrates through the adjusting screw hole at the front end of the rectangular sealing groove, so that the adjusting screw rod can drive the pressing plate to slowly move towards the direction of the conveying hoses A through the action of the threads when the adjusting screw rod rotates The activity, after the silica gel pad on the clamp plate outer wall is laminated on the conveying hose A, continue rotatory adjusting screw this moment, make the clamp plate continue to move towards conveying hose A direction, thereby make the clamp plate slowly sticis on conveying hose A through the silica gel pad, and then make its pressurized department slowly by the shrink after conveying hose A pressurized, will reduce the circulation diameter of shrink department like this, thereby change the velocity of flow of liquid in conveying hose A, thereby can more accurate control and use whole COD monitoring devices.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model without limiting the utility model in which:

FIG. 1 is a schematic structural diagram of a COD monitoring device for determining digestion time according to field conditions, which is provided by the utility model;

FIG. 2 is a schematic plan view of the sealing device of the present invention;

in the figure: 1. a base; 2. a device case; 3. a chassis; 4. a top seat; 5. measuring a standard cylinder; 6. a reagent B cartridge; 7. a waste liquid cylinder; 8. a zero mark cylinder; 9. a reagent cartridge C; 10. a reagent cartridge A; 11. a water sample cylinder; 12. a delivery hose A; 13. a hose sealing device; 14. a peristaltic pump; 15. a delivery hose B; 16. a control screen; 17. a liquid level meter; 18. digesting the colorimetric cup; 19. a light detection mechanism; 20. a delivery hose C; 21. a concatemer valve; 22. a fixing plate; 23. sealing the batten; 24. perforating the pipe orifice; 25. a rectangular closed slot; 26. operating a hand wheel; 27. a silica gel pad; 28. pressing the plate tightly; 29. adjusting the screw hole; 30. adjusting the screw rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: the utility model provides a confirm COD monitoring devices who clears up time according to on-the-spot condition, including base 1 and device box 2, device box 2 opening is installed forward in the upper end of base 1, the upper end of device box 2 is provided with footstock 4, device box 2 first section inside is provided with quick-witted case 3, base 1, device box 2, footstock 4 all adopts the stainless steel to make, all be connected through welded fastening between device box 2 and base 1 and the footstock 4, the front end of device box 2 still has the chamber door through hinged joint, when whole COD monitoring devices began work, can play the guard action to the inside multiple solvent section of thick bamboo of device box 2 through closing the front end of device box 2 to the chamber door, can avoid easily receiving external factor interference when whole COD monitoring devices work like this, thereby can increase whole COD monitoring devices's job stabilization nature, machine case 3 downside has set gradually a measuring mark section of thick bamboo 5 from right to left, A reagent B cylinder 6, a waste liquid cylinder 7, a zero standard cylinder 8, a reagent C cylinder 9, a reagent A cylinder 10 and a water sample cylinder 11, wherein a measuring standard cylinder 5, a reagent B cylinder 6, a waste liquid cylinder 7, a zero standard cylinder 8, a reagent C cylinder 9, a reagent A cylinder 10 and a water sample cylinder 11 are all arranged on the inner wall of the upper end of the base 1, the measuring standard cylinder 5, the reagent B cylinder 6, the waste liquid cylinder 7, the zero standard cylinder 8, the reagent C cylinder 9, the reagent A cylinder 10 and the water sample cylinder 11 are all in transparent cylinder design, the measuring standard cylinder 5, the reagent B cylinder 6, the waste liquid cylinder 7, the zero standard cylinder 8, the reagent C cylinder 9, the reagent A cylinder 10 and the water sample cylinder 11 are all internally communicated with a conveying hose A12, hose sealing devices 13 are connected on the inner walls of the left end and the right end of the device box body 2, the upper end of the box body 3, which is close to the left end and the right end of the lower end, a water sample cylinder is provided with a multi-connected valve 21, the measuring standard cylinder 5, the reagent B cylinder 6, the waste liquid cylinder 7, the zero standard cylinder 8, the reagent C cylinder 9, the reagent A cylinder 10 and the upper end of the water sample cylinder 11 are provided with a conveying hose 12, the upper ends of seven conveying hoses A12 penetrate through the hose sealing device 13 and are communicated and connected with the concatemer valve 21, the upper side of the concatemer valve 21 is connected with a liquid level meter 17 through a hose, the top end of the liquid level meter 17 is connected with a conveying hose B15, the other end of the conveying hose B15 is connected with a peristaltic pump 14, the right end of the upper side of the concatemer valve 21 is connected with a conveying hose C20, the other end of the conveying hose C20 is connected with a digestion cuvette 18, a light detection mechanism 19 is arranged on the circular inner wall of the digestion cuvette 18, a control screen 16 is embedded in the outer wall of the case 3 close to the front end of the upper side, the control screen 16 consists of a display screen and a control button, the display screen is a high-definition liquid crystal display screen, and the control button is designed by physical pressing, when the COD monitoring device works, the display screen with high screen clearing can display the monitoring result in real time, so that the monitoring result can be conveniently and quickly observed by a worker, and the result can be recorded.

Example two

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a COD monitoring device for determining digestion time according to on-site conditions is disclosed, a hose sealing device 13 comprises fixing plates 22, sealing strips 23, pipe penetrating ports 24, rectangular sealing grooves 25, an operating hand wheel 26, a silica gel pad 27, a pressing plate 28, adjusting screw holes 29 and adjusting screws 30, the fixing plates 22 are arranged at the left end and the right end of each sealing strip 23, the two fixing plates 22 are respectively connected to the inner walls of the left end and the right end of a device box body 2 through screws, seven rectangular sealing grooves 25 penetrate through the vertical inner part of each sealing strip 23 at equal intervals, the pipe penetrating ports 24 are connected to the rear ends of the right sides of the seven rectangular sealing grooves 25, the adjusting screw holes 29 are respectively connected to the centers of the front ends of the seven rectangular sealing grooves 25, the adjusting screws 30 penetrate through the inner parts of the seven adjusting screw holes 29, the operating hand wheel 26 is arranged at the front ends of the seven adjusting screws 30, the pressing plates 28 are respectively connected to the rear ends of the seven adjusting screws 30 through rotating shafts, seven pressure plates 28 are respectively arranged inside the front sides of the seven rectangular closed grooves 25, silicone pads 27 are arranged on the outer walls of the rear ends of the seven pressure plates 28, the silicone pads 27 are made of soft silicone, the silicone pads 27 and the pressure plates 28 are fixedly connected through an adhesive, the transverse width of the pipe penetrating port 24 is equal to the outer diameter of the conveying hose A12, when the flow rate of one of the conveying hoses needs to be changed, only the operating handwheel 26 needs to drive the adjusting screw 30 to rotate, and the adjusting screw 30 penetrates through the adjusting screw hole 29 at the front end of the rectangular closed groove 25, so that the adjusting screw 30 can drive the pressure plates 28 to slowly move towards the conveying hose A12 through the screw thread effect during rotation, after the silicone pads 27 on the outer walls of the pressure plates 28 are attached to the conveying hose A12, the adjusting screw 30 continues to rotate at this time, so that the pressure plates 28 continue to move towards the conveying hose A12, so that the pressing plate 28 is slowly pressed on the delivery hose a12 through the silicone pad 27, and the pressed part of the delivery hose a12 is slowly contracted after being pressed, so that the flow diameter of the contracted part is reduced, and the flow rate of the liquid in the delivery hose a12 is changed.

The working principle and the using process of the utility model are as follows: after the device is installed, when the COD monitoring device is used, firstly, the whole COD monitoring device needs to be placed on the ground through the base 1, then, the box door needs to be installed at the front end of the device box body 2 through a hinge, then, the box door is opened, and the measuring standard cylinder 5, the reagent B cylinder 6, the waste liquid cylinder 7, the zero standard cylinder 8, the reagent C cylinder 9, the reagent A cylinder 10 and the water sample cylinder 11 are sequentially placed at the upper end of the base 1 from right to left, then, the measuring standard cylinder 5, the reagent B cylinder 6, the waste liquid cylinder 7, the zero standard cylinder 8, the reagent C cylinder 9, the reagent A cylinder 10 and the conveying hoses A12 on the water sample cylinder 11 need to penetrate through the hose sealing device 13 and be connected to the multi-connected valve 21, then, the whole COD monitoring device can be started through the control screen 16 on the machine box 3, and after the measuring cycle process begins, the pipelines, the quantifying pipes and the digestion bottles are washed by new water samples to remove residual interferents, the method comprises the steps of sequentially adding a water sample, an oxidant and a catalyst into a digestion bottle by using a peristaltic pump 14, preventing the water sample and a solution from directly contacting with a peristaltic pump 14 pipe to prevent corrosion and interference pollution, simultaneously using a photoelectric metering pipe to prevent the generation of an error of liquid adding amount caused by the flow change of the peristaltic pump 14, digesting for 120min under high temperature and acidic conditions, bubbling mixed liquid to ensure that the solution in the heating digestion bottle is completely mixed, measuring an end point by using a photoelectric colorimetric method, converting the amount of reaction consumed potassium dichromate into the mass concentration of consumed oxygen to obtain the CODcr value of a sample, shortening digestion time, measuring different digestion times (5 min-120 min) by using the same water sample, taking the shortest digestion time under the condition that the measurement result is closest to the result obtained by 120min as the digestion time of the water sample, automatically comparing each new water sample instrument, the shortest digestion time was found.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a confirm to clear up COD monitoring devices of time according to the field situation, includes base (1) and device box (2), its characterized in that: the device comprises a base (1), a top seat (4) is arranged at the upper end of the device box body (2), a case (3) is arranged in the upper half section of the device box body (2), a measuring standard cylinder (5), a reagent B cylinder (6), a waste liquid cylinder (7), a zero standard cylinder (8), a reagent C cylinder (9), a reagent A cylinder (10) and a water sample cylinder (11) are sequentially arranged on the lower side of the case (3) from right to left, the measuring standard cylinder (5), the reagent B cylinder (6), the waste liquid cylinder (7), the zero standard cylinder (8), the reagent C cylinder (9), the reagent A cylinder (10) and the water sample cylinder (11) are all arranged on the inner wall of the upper end of the base (1), a hose sealing device (13) is connected on the inner walls of the left end and the right end of the device box body (2) close to the lower side, a multi-union valve (21) is arranged on the outer wall of the case (3) close to the front end of the lower side, the upper ends of the measuring and marking cylinder (5), the reagent B cylinder (6), the waste liquid cylinder (7), the zero marking cylinder (8), the reagent C cylinder (9), the reagent A cylinder (10) and the water sample cylinder (11) are respectively provided with a conveying hose A (12), the upper ends of seven conveying hoses A (12) penetrate through a hose sealing device (13) and are communicated and connected with a multi-connection valve (21), the hose sealing device (13) comprises a fixing plate (22), a sealing strip plate (23), a pipe penetrating port (24), a rectangular sealing groove (25), an operating hand wheel (26), a silica gel pad (27), a pressure plate (28), an adjusting screw hole (29) and an adjusting screw rod (30), the left end and the right end of the sealing strip plate (23) are respectively provided with the fixing plates (22), the two fixing plates (22) are respectively connected to the inner walls of the left end and the right end of the device box body (2) through screws, the seven rectangular sealing grooves (25) penetrate through the vertical inner portion of the sealing strip plate (23) at equal intervals, the rear ends of the right sides of the seven rectangular closed grooves (25) are connected with pipe penetrating openings (24), the centers of the front ends of the seven rectangular closed grooves (25) are connected with adjusting screw holes (29), adjusting screws (30) penetrate through the seven adjusting screw holes (29), operating hand wheels (26) are arranged at the front ends of the seven adjusting screws (30), the rear ends of the seven adjusting screws (30) are connected with pressing plates (28) through rotating shafts, the seven pressing plates (28) are arranged inside the front sides of the seven rectangular closed grooves (25) respectively, and silica gel pads (27) are arranged on the outer walls of the rear ends of the seven pressing plates (28).

2. The COD monitoring device for determining digestion time according to field conditions, according to claim 1, is characterized in that: the upper side of the concatemer valve (21) is connected with a liquid level meter (17) through a hose, the top end of the liquid level meter (17) is connected with a conveying hose B (15), the other end of the conveying hose B (15) is connected with a peristaltic pump (14), the right end of the upper side of the concatemer valve (21) is connected with a conveying hose C (20), the other end of the conveying hose C (20) is connected with a digestion cuvette (18), and a light detection mechanism (19) is arranged on the circular inner wall of the digestion cuvette (18).

3. The COD monitoring device for determining digestion time according to field conditions, according to claim 1, is characterized in that: case (3) are close to upside front end outer wall inside still to be embedded to have control screen (16), control screen (16) comprise display screen and control button, the display screen is high definition LCD screen, control button adopts the design of physics push type.

4. The COD monitoring device for determining digestion time according to field conditions, according to claim 1, is characterized in that: the base (1), the device box body (2) and the top seat (4) are all made of stainless steel, the device box body (2) is fixedly connected with the base (1) and the top seat (4) through welding, and the front end of the device box body (2) is further connected with a box door through a hinge.

5. The COD monitoring device for determining digestion time according to field conditions, according to claim 1, is characterized in that: the volume mark section of thick bamboo (5), a reagent B section of thick bamboo (6), a waste liquid section of thick bamboo (7), a zero mark section of thick bamboo (8), a reagent C section of thick bamboo (9), a reagent A section of thick bamboo (10) and a water sample section of thick bamboo (11) all adopt the design of transparent section of thick bamboo, volume mark section of thick bamboo (5), a reagent B section of thick bamboo (6), a waste liquid section of thick bamboo (7), a zero mark section of thick bamboo (8), a reagent C section of thick bamboo (9), a reagent A section of thick bamboo (10) and water sample section of thick bamboo (11) are inside all with the inside intercommunication of delivery hose A (12).

6. The COD monitoring device for determining digestion time according to field conditions, according to claim 1, is characterized in that: silica gel pad (27) adopt soft silica gel to make, silica gel pad (27) and sticiss board (28) pass through adhesive fixed connection, the lateral width of wearing mouth of pipe (24) equals with the outside diameter of conveying hose A (12).