CN110849702B

CN110849702B - COD digester and use method thereof

Info

Publication number: CN110849702B
Application number: CN201911178438.8A
Authority: CN
Inventors: 张犇; 黄仁辉; 王嬉巧
Original assignee: Taizhou Lvshuiqingshan Environmental Technology Co ltd
Current assignee: Taizhou Lvshuiqingshan Environmental Technology Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2022-07-15
Anticipated expiration: 2039-11-27
Also published as: CN110849702A

Abstract

The invention discloses a COD digestion device, which relates to the field of water sample detection equipment and adopts the technical scheme that the COD digestion device comprises a base, a support arranged on the base and a mounting seat arranged above the support, wherein a heating furnace plate is arranged on the base, a digestion bottle is arranged on the furnace plate, a plurality of mounting holes are formed in the mounting seat along the vertical direction, backflow condensation pipes are arranged on the mounting holes, the lower ends of the backflow condensation pipes are connected with the digestion bottle, the mounting seat is arranged in a hollow shell, a cooling fan is arranged in the mounting seat and used for blowing air towards the backflow condensation pipes to dissipate heat, and vent holes are formed in two ends of the mounting seat along the air blowing direction of the cooling fan. Blow through radiator fan and in time lower the temperature to the backward flow condenser pipe to make the condensation effect of backward flow condenser pipe more stable.

Description

COD digester and use method thereof

Technical Field

The invention relates to the field of water sample detection equipment, in particular to a COD digester and a using method thereof.

Background

Chemical Oxygen Demand (COD) in the field of environmental protection is one of the main control indexes of surface water and waste water, and is an important comprehensive index of organic pollution of water.

The instruments used by the environmental protection monitoring institution to detect sewage generally include COD digestion devices, which are mainly used to degrade the substances difficult to be determined and convert them into compounds or ions that can be easily determined. The COD digester generally comprises a host, a bracket and a base, wherein a heating electric furnace plate is arranged on the base, a digestion bottle is placed on the electric furnace plate, and the digestion bottle is connected with a reflux condenser pipe.

Above-mentioned COD digestion ware is in the use, and the condensation mainly goes on through the backward flow condenser pipe, but after using a certain time, the backward flow condenser pipe is sent out the boiling hot easily, leads to the condensation effect variation of backward flow condenser pipe, and is more troublesome, remains to improve.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the COD digester, which has the advantages of timely cooling the reflux condenser pipe and enabling the condensation effect of the reflux condenser pipe to be more stable.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a COD digestion device, includes the base, sets up the support on the base and sets up in the mount pad of support top, is provided with heating furnace plate on the base, places on the furnace plate and clears up the bottle, has seted up a plurality of mounting holes along vertical direction on the mount pad, is provided with the backward flow condenser pipe on the mounting hole, the lower extreme of backward flow condenser pipe with clear up the bottle and be connected, the mount pad is hollow casing setting, be provided with radiator fan in the mount pad, radiator fan is used for blowing towards the backward flow condenser pipe and dispels the heat, the air vent has all been seted up along radiator fan blowing direction's both ends to the mount pad.

Through above-mentioned technical scheme, when adopting above-mentioned COD digestion ware, when the backward flow condenser pipe carries out the condensation backward flow, radiator fan forms the air current through rotating and blows towards the backward flow condenser pipe and cool off to make the backward flow condenser pipe in time cool down, thereby make the condensation effect of backward flow condenser pipe more stable.

Furthermore, the mounting seat comprises an upper shell and a lower shell, and the brackets are fixedly connected to the outer side wall of the upper shell; the lower extreme of going up the casing is the opening setting, the upper end of casing is the opening setting down, just down the casing slides and inlays to locate in the upper casing, still be provided with the adjusting part who is used for adjusting casing height down on the upper casing.

Through the technical scheme, after bottle upper end opening is cleared up in the embedding of backward flow condenser pipe lower extreme and is connected, can drive down the casing through adjusting part and remove for the backward flow condenser pipe is higher than clears up bottle department and is located the mount pad, thereby makes radiator fan bigger to the forced air cooling area of backward flow condenser pipe, thereby is better to the cooling effect of backward flow condenser pipe, helps guaranteeing the condensation effect of backward flow condenser pipe.

Furthermore, the adjusting part comprises a screw rod rotatably connected to the upper shell, and a threaded sleeve fixedly connected to the lower shell and in threaded connection with the screw rod, the axis of the screw rod is vertically arranged, a guide rod parallel to the screw rod is further fixed to the upper shell, and a guide sleeve matched with the guide rod in a sliding manner is further fixed to the lower shell.

Through the technical scheme, when the position of the lower shell is required to be adjusted, the screw rod can be rotated relative to the threaded sleeve by rotating the screw rod, so that the lower shell is driven by the threaded sleeve to move downwards, and the height of the lower shell is adjusted more conveniently.

Furthermore, the air vents are respectively arranged on the side walls of the two ends of the upper shell and the lower shell along the blowing direction of the cooling fan, the air vents are arranged in grid holes, and the grid holes are uniformly filled and distributed in the corresponding side walls.

Through above-mentioned technical scheme, the air vent is the net hole, and when the casing reciprocated the regulation down, the ventilation effect of air vent can be ensured in the setting of net hole to make the ventilation in the mount pad more stable, make radiator fan's radiating effect more stable.

Further, go up the casing and be the plastics material with lower casing, radiator fan fixed connection is in the upper casing, the internal atomizer that still is provided with of inferior valve, the nozzle of atomizer is located one side that radiator fan is close to the backward flow condenser pipe.

Through above-mentioned technical scheme, set up the atomizer, the atomizer is the device with test solution atomizing. The atomizer is through following the nozzle blowout after atomizing water, then removes atomizing water smoke towards the backward flow condenser pipe through the air current that radiator fan formed, through the vaporization heat absorption of water smoke, further cools off the backward flow condenser pipe to make the cooling effect better, help ensureing the condensation effect of backward flow condenser pipe.

Further, the inside wall of backflow condenser pipe is provided with a plurality of water conservancy diversion units, every along the axial the water conservancy diversion unit includes three water conservancy diversion thorn along circumference evenly distributed, and every water conservancy diversion thorn is the slope and sets up downwards towards the axis of backflow condenser pipe, and the one end that the three water conservancy diversion thorn of water conservancy diversion unit is close to the backflow condenser pipe axis each other and sets up.

Through above-mentioned technical scheme, set up the water conservancy diversion unit, the water conservancy diversion unit can lead to the condensate in the reflux condenser pipe for the condensate can assemble the axle center position department of honeycomb duct along the water conservancy diversion thorn and drip to and clear up in the bottle after assembling, thereby has reduced the condensate and has caused the condition of wall built-up along the inside wall backward flow of reflux condenser pipe, makes the effect of condensation backward flow better.

Furthermore, the guide thorns are formed by the inner concave of the reflux condensation pipe, and grooves are formed in the outer side walls corresponding to the guide thorns.

Through the technical scheme, the flow guide thorns are basically arranged in a thin wall due to the arrangement of the grooves, so that the contact surface of the flow guide thorns with the outside is larger, and the flow guide thorns can dissipate heat in time conveniently.

Furthermore, the groove and the reflux condenser pipe are arranged in a circular arc transition mode, and when the reflux condenser pipe is used, cooling liquid is filled in the groove.

Through the technical scheme, before the backflow condenser pipe uses, earlier pass through the stopper with the lower port of backflow condenser pipe and seal, then put into the coolant liquid of 8 degrees centigrade with backflow condenser pipe lower extreme orientation, alcohol is chooseed for use usually to the coolant liquid, the upper end of condenser pipe is higher than the up end of coolant liquid, make the coolant liquid supply carry out the accumulation in the recess, then place the backflow condenser pipe and use on the mount pad, the cooling effect of water conservancy diversion unit has further been strengthened in the recess through the coolant liquid, make the condensation effect of backflow condenser pipe more stable.

Further, the upper end of backward flow condenser pipe still is provided with water storage portion, water storage portion is the setting of cylindric top lateral wall around the backward flow condenser pipe, the upper end outer wall of water storage portion is provided with the water inlet.

Through above-mentioned technical scheme, set up water storage portion, through setting up water storage portion in the upper end, water storage portion lower extreme can conflict the mount pad up end and fix a position, can add the cooling water in the water storage portion simultaneously and strengthen the heat dissipation of the position department that backward flow condenser pipe radiator fan can not blow to make the condensation effect of backward flow condenser pipe better.

The use method of the COD digester comprises the following steps:

s1, blocking the lower end of the reflux condenser pipe by a plug, inserting the lower end of the reflux condenser pipe into the cooling liquid to make the cooling liquid be supplemented into the groove, then taking out the reflux condenser pipe, wiping the outer side wall of the lower end of the reflux condenser pipe clean, and removing the plug;

s2, adding the liquid to be detected into the digestion bottle, placing the digestion bottle above a heating electric furnace plate, penetrating a reflux condenser pipe through a mounting hole, inserting the lower end of the reflux condenser pipe into the digestion bottle to be connected with the digestion bottle, and adjusting the height of the lower shell through an adjusting assembly to enable the lower end face of the lower shell to be higher than the bottle mouth of the digestion bottle by within 10 mm;

and S3, starting the heating electric furnace plate, and simultaneously starting the cooling fan and the atomizer.

Through above-mentioned technical scheme, through filling the coolant liquid in advance at the recess, the coolant liquid adopts 75% alcohol solution, and when rethread radiator fan was radiating, can also vaporize the coolant liquid for holistic cooling effect is better, thereby makes the condensation effect of backward flow condenser pipe better.

Compared with the prior art, the invention has the beneficial effects that:

(1) the backflow condensation pipe is cooled in time by blowing air through the cooling fan, so that the condensation effect of the backflow condensation pipe is more stable;

(2) by arranging the adjusting assembly, the height of the lower shell is adjusted by the adjusting assembly, so that the cavity of the mounting seat is adjusted, more parts of the reflux condenser pipe are positioned in the mounting seat, the placing of the digestion bottle is not interfered, the cooling effect of the reflux condenser pipe is enhanced, the operation of placing the digestion bottle is not influenced, and the integral use is more convenient;

(3) through setting up water conservancy diversion thorn and recess, reduced the condensate and led to the fact the condition of wall built-up along the inside wall backward flow of reflux condenser pipe for the effect of condensation backward flow is better, can fill the coolant liquid in the recess simultaneously, further strengthens the stability of the condensation effect of reflux condenser pipe.

Drawings

FIG. 1 is a general schematic view of a first embodiment;

FIG. 2 is a schematic view of a reflux condenser structure according to a first embodiment;

FIG. 3 is a schematic cross-sectional view of a reflux condenser tube according to the first embodiment;

fig. 4 is a partial cross-sectional view of the mounting base according to the first embodiment.

Reference numerals: 1. a base; 2. a support; 3. a mounting seat; 31. an upper housing; 32. a lower housing; 4. heating the furnace plate; 5. digesting the bottle; 6. mounting holes; 7. a reflux condenser tube; 8. a water storage part; 9. a flow guide unit; 91. flow guiding thorns; 10. a water inlet; 11. a groove; 12. an adjustment assembly; 121. a screw rod; 122. a threaded sleeve; 13. a guide bar; 14. a guide sleeve; 15. a heat-dissipating fan; 16. an atomizer; 17. and (4) a vent hole.

Detailed Description

The invention is described in detail below with reference to the figures and examples.

The first embodiment is as follows:

a COD digester is shown in figure 1, and comprises a base 1, a bracket 2 fixed on the base 1 and a mounting seat 3 fixed above the bracket 2. A heating electric furnace plate 4 is arranged on the base 1, a digestion bottle 5 is placed on the electric furnace plate, and the heating electric furnace plate 4 is used for heating the digestion bottle 5 after being electrified. The support 2 is four stand columns which are distributed in a square manner, and the stand columns are fixedly connected to the front end face and the rear end face of the mounting base 3. A plurality of mounting holes 6 have been seted up along vertical direction on the mount pad 3, are provided with backward flow condenser pipe 7 on the mounting hole 6, and the lower extreme of backward flow condenser pipe 7 is connected with digestion bottle 5.

As shown in fig. 2 and 3, the reflux condenser tube 7 is arranged in a round tube shape, and the lower end of the reflux condenser tube 7 is arranged in a reducing manner, so that the reflux condenser tube can be conveniently inserted into the digestion bottle 5 for connection. The upper end of the reflux condenser pipe 7 is also provided with a water storage part 8, the water storage part 8 is cylindrical and is arranged around the outer side wall of the top of the reflux condenser pipe 7, and the outer wall of the upper end of the water storage part 8 is provided with a water inlet 10. The lower end of the water storage part 8 can abut against the upper end face of the mounting seat 3 to be positioned, and meanwhile, cooling water can be added into the water storage part 8 to cool the reflux condensation pipe 7.

A plurality of water conservancy diversion units 9 are axially fixed on the inner side wall of the reflux condenser pipe 7, each water conservancy diversion unit 9 comprises three water conservancy diversion thorns 91 which are uniformly distributed along the circumferential direction, each water conservancy diversion thorn 91 is obliquely and downwards arranged towards the axis of the reflux condenser pipe 7, and one ends of the three water conservancy diversion thorns 91 of the water conservancy diversion units 9, which are close to the axis of the reflux condenser pipe 7, are arranged close to each other. The lateral wall that water conservancy diversion thorn 91 corresponds is provided with recess 11, and recess 11 is circular arc transition setting with backflow condenser pipe 7, and water conservancy diversion thorn 91 passes through backflow condenser pipe 7 indent formation. Before the backflow condenser pipe 7 uses, earlier pass through the stopper with the lower port of backflow condenser pipe 7 and seal, then put into the coolant liquid of 8 degrees centigrade with 7 lower extreme orientations of backflow condenser pipe, the coolant liquid chooses 75% alcohol solution for use usually, and the upper end of condenser pipe is higher than the up end of coolant liquid for the coolant liquid is mended and is carried out the accumulation in the recess 11, then places backflow condenser pipe 7 and uses on mount pad 3.

As shown in fig. 1 and 4, the mounting seat 3 includes an upper housing 31 and a lower housing 32, and the upper housing 31 and the lower housing 32 are both made of plastic. The lower extreme of going up casing 31 is the opening setting, and the upper end of lower casing 32 is the opening setting, and lower casing 32 slides and inlays and locate last casing 31 in, and the equal fixed connection of support 2 sets up in the lateral wall of last casing 31. The upper shell 31 and the lower shell 32 are spliced together so that the mounting seat 3 is a hollow shell. The upper shell 31 is also provided with an adjusting assembly 12, and the adjusting assembly 12 is used for adjusting the height of the lower shell 32.

The adjusting assembly 12 includes a screw 121 rotatably connected to the upper housing 31, and a threaded sleeve 122 fixedly connected to the lower housing 32 and threadedly connected to the screw 121. The axis of lead screw 121 is vertical setting, still is fixed with three guide bar 13 on the last casing 31, and three guide bar 13 and lead screw 121 are close to four corners of last casing 31 respectively, and every guide bar 13 all with lead screw 121 parallel arrangement. The lower housing 32 is also fixed with a guide sleeve 14 which is in sliding fit with the guide rod 13. When the position of the lower shell 32 needs to be adjusted, the screw rod 121 can be rotated relative to the threaded sleeve 122 by rotating the screw rod 121, so that the threaded sleeve 122 drives the lower shell 32 to move downwards, and the guide rod 13 is slidably embedded in the guide sleeve 14 for guiding in the process.

A cooling fan 15 is arranged in the mounting base 3, the rotation axis of the cooling fan 15 is horizontally arranged, and the cooling fan 15 rotates to form air flow after being electrified. The heat dissipation fan 15 is fixedly connected in the upper casing 31, the heat dissipation fan 15 is fixed on the side of the upper casing 31, and an air outlet of the heat dissipation fan 15 faces the reflux condensation pipe 7 and is used for blowing air to the reflux condensation pipe 7 for heat dissipation. The lower casing 32 is also provided with an atomizer 16, and the spray opening of the atomizer 16 is positioned on one side of the heat radiation fan 15 close to the return condensation pipe 7. The atomizer 16 is a conventional device for atomizing a sample solution. The atomizer 16 sprays water from the atomizing nozzle after atomizing the water, then the atomized water mist moves towards the reflux condenser pipe 7 through the airflow formed by the rotation of the cooling fan 15, and the water mist can be vaporized and absorb heat after contacting the reflux condenser pipe 7, so that the reflux condenser pipe 7 is further cooled.

Both ends of the mounting base 3 along the blowing direction of the cooling fan 15 are provided with vent holes 17. The vent holes 17 are respectively arranged on the side walls of the two ends of the upper shell 31 and the lower shell 32 along the blowing direction of the cooling fan 15, the vent holes 17 are all arranged in grid holes, and the grid holes are uniformly filled and distributed on the corresponding side walls. In this embodiment, the mesh holes are square holes, the length of each square hole is 10mm, and the width of the boundary of each mesh hole is 2mm, so that the mesh holes are normally ventilated when the mesh holes of the upper and lower cases 31 and 32 are overlapped.

Example two:

a use method of a COD digester comprises the following steps:

s1, blocking the lower end of the reflux condenser pipe 7 by a plug, inserting the lower end of the reflux condenser pipe 7 into the cooling liquid to make the cooling liquid be supplemented into the groove 11, then taking out the reflux condenser pipe 7, wiping the outer side wall of the lower end of the reflux condenser pipe 7 clean, and then removing the plug;

s2, adding the liquid to be detected into the digestion bottle 5, placing the liquid above the heating electric furnace plate 4, then enabling the reflux condenser pipe 7 to penetrate through the mounting hole 6, enabling the lower end of the reflux condenser pipe 7 to be inserted into the digestion bottle 5 to be hermetically connected with the digestion bottle 5, and adjusting the height of the lower shell 32 through the adjusting assembly 12 to enable the lower end face of the lower shell 32 to be 10mm higher than the bottle mouth of the digestion bottle 5;

s3, the heating furnace plate 4 is started, and the radiator fan 15 and the atomizer 16 are simultaneously started.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to those skilled in the art without departing from the principles of the present invention should also be considered as within the scope of the present invention.

Claims

1. The utility model provides a COD digestion device, including base (1), set up support (2) on base (1) and set up in mount pad (3) of support (2) top, be provided with heating furnace plate (4) on base (1), place on the furnace plate and clear up bottle (5), a plurality of mounting holes (6) have been seted up along vertical direction on mount pad (3), be provided with backward flow condenser pipe (7) on mounting hole (6), the lower extreme of backward flow condenser pipe (7) with clear up bottle (5) and be connected, its characterized in that: the mounting seat (3) is arranged in a hollow shell, a heat dissipation fan (15) is arranged in the mounting seat (3), the heat dissipation fan (15) is used for blowing air to the backflow condensation pipe (7) for heat dissipation, and air holes (17) are formed in two ends of the mounting seat (3) along the air blowing direction of the heat dissipation fan (15); an atomizer (16) is arranged in the mounting seat (3), and a spray nozzle of the atomizer (16) is positioned on one side, close to the reflux condenser pipe (7), of the heat dissipation fan (15);

a plurality of flow guide units (9) are axially arranged on the inner side wall of the reflux condensation pipe (7), each flow guide unit (9) comprises three flow guide thorns (91) which are uniformly distributed along the circumferential direction, each flow guide thorn (91) is obliquely and downwards arranged towards the axis of the reflux condensation pipe (7), and one ends, close to the axis of the reflux condensation pipe (7), of the three flow guide thorns (91) of each flow guide unit (9) are arranged close to each other;

the flow guide thorns (91) are formed by inwards recessing the reflux condensation pipe (7), grooves (11) are formed in the outer side wall corresponding to the flow guide thorns (91), and the grooves (11) are used for filling cooling liquid.

2. The COD digester according to claim 1, wherein: the mounting seat (3) comprises an upper shell (31) and a lower shell (32), and the brackets (2) are fixedly connected to the outer side wall of the upper shell (31); the lower extreme of going up casing (31) is the opening setting, the upper end of casing (32) is the opening setting down, just casing (32) slides down and inlays and locate in last casing (31), still be provided with on last casing (31) and be used for adjusting down adjusting part (12) of casing (32) height.

3. The COD digester according to claim 2, wherein: adjusting part (12) including rotate lead screw (121), fixed connection on last casing (31) in lower casing (32) and with lead screw (121) threaded connection's swivel nut (122), the axis of lead screw (121) is vertical setting, go up still be fixed with guide bar (13) parallel with lead screw (121) on casing (31), casing (32) still are fixed with down and slide complex uide bushing (14) with guide bar (13).

4. The COD digester according to claim 2, wherein: the vent holes (17) are respectively formed in the side walls of the two ends of the blowing direction of the upper shell (31) and the lower shell (32) along the cooling fan (15), the vent holes (17) are all arranged in grid holes, and the grid holes are uniformly filled and distributed in the corresponding side walls.

5. The COD digester according to claim 2, wherein: go up casing (31) and lower casing (32) and be the plastics material, radiator fan (15) fixed connection is in last casing (31), atomizer (16) set up in lower casing (32).

6. The COD digester according to claim 1, wherein: the groove (11) and the reflux condensation pipe (7) are arranged in a circular arc transition mode.

7. The COD digester as claimed in claim 5, wherein: the upper end of backward flow condenser pipe (7) still is provided with water storage portion (8), water storage portion (8) are the cylindric and set up around the top lateral wall of backward flow condenser pipe (7), the upper end outer wall of water storage portion (8) is provided with water inlet (10).

8. A method of using a COD digester as claimed in any one of claims 1 to 7, comprising the steps of:

s1, blocking the lower end of the reflux condenser pipe (7) by a plug, inserting the lower end of the reflux condenser pipe (7) into the cooling liquid to make the cooling liquid be supplemented into the groove (11), then taking out the reflux condenser pipe (7), wiping the outer side wall of the lower end of the reflux condenser pipe (7) clean, and then removing the plug;

s2, adding the liquid to be detected into the digestion bottle (5), placing the liquid to be detected above the heating electric furnace plate (4), penetrating the reflux condenser pipe (7) through the mounting hole (6), inserting the lower end of the reflux condenser pipe (7) into the digestion bottle (5) to be connected with the digestion bottle (5), and adjusting the height of the lower shell (32) through the adjusting assembly (12) to enable the lower end face of the lower shell (32) to be higher than the bottle mouth of the digestion bottle (5) by within 10 mm;

and S3, starting the heating electric furnace plate (4), and simultaneously starting the cooling fan (15) and the atomizer (16).