CN219015816U - COD backward flow digestion instrument - Google Patents

Abstract

The utility model discloses a COD reflux digestion instrument which comprises a heating base, wherein a heating panel is arranged on the heating base, a digestion bottle is placed on the heating panel, an air cooling box is connected above the heating base through a supporting frame, a lifting device is arranged on the air cooling box, a condensing pipe is arranged on the lifting device, the condensing pipe sequentially penetrates through the lifting device and the air cooling box to enable the lower end of the condensing pipe to be in butt joint with the digestion bottle, one side of the top of the lifting device is connected with a top rotating frame through a connecting rod, the top rotating frame is driven to rotate through a motor, a cleaning water outlet is formed in the top rotating frame, the position of the cleaning water outlet is opposite to the condensing pipe and is used for cleaning the condensing pipe, a circulating water inlet and a circulating water outlet are formed in one side of the cleaning water outlet and are used for circulating cooling water in the condensing pipe, and the effect of rapid cooling is achieved through double cooling of circulating water cooling and air cooling; the outside of any support frame can be detachably provided with a water receiving disc.

Description

COD backward flow digestion instrument

Technical Field

The utility model relates to the technical field of COD reflux digestion, in particular to a COD reflux digestion instrument.

Background

For the measurement of chemical oxygen demand in surface water, domestic sewage and industrial wastewater, mainly refer to the bichromate method for measuring water quality chemical oxygen demand (HJ 828-2017), a bichromate method is adopted, a known amount of potassium dichromate solution is added into a water sample, silver salt is used as a catalyst under a strong acid medium, after boiling reflux, ferrous sulfate is used as an indicator, unreduced potassium dichromate in the water sample is titrated by using ferrous sulfate ammonium, the mass concentration of consumed oxygen is calculated by the amount of consumed potassium dichromate, and in the detection process, a COD reflux digestion device is needed for digestion of the chemical oxygen demand.

The utility model provides an appearance is cleared up in intelligent backward flow cooling discloses a through two fan convection cooling's COD backward flow clear up appearance, its air-cooled cooling effect is to be improved, when the instrument was used simultaneously, place the triangular flask, need manual upward shift condenser pipe, move down the condenser pipe later and make condenser pipe lower extreme aim at inserting the triangular flask for the operation process is comparatively inconvenient, and the instrument need take out the condenser pipe one by one after using and wash, because the condenser pipe is longer, for the glass material, it is also comparatively inconvenient to clean to remove the condenser pipe after each time using, simultaneously, cooling water in the condenser pipe generally derives from running water, if place the cooling water in the condenser pipe for a long time, easily because microorganism breeds and lead to growing moss, thereby occupy condenser pipe inner space, influence the condensation effect.

Disclosure of Invention

The utility model aims to overcome the defects or problems in the background art and provides a COD reflux digestion instrument.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the COD reflux digestion instrument comprises a heating base, wherein an air cooling box is connected above the heating base through a supporting frame, fans are symmetrically arranged on two sides in the air cooling box and used for convection cooling, a lifting device is arranged on the air cooling box, a condensing pipe is arranged on the lifting device, one side of the top of the lifting device is connected with a top rotating frame through a connecting rod, the top rotating frame is driven to rotate through a motor, a cleaning water outlet is formed in the top rotating frame, the position of the cleaning water outlet is opposite to the condensing pipe, and a circulating water inlet and a circulating water outlet are formed in one side of the cleaning water outlet; the outside of any support frame can be detachably provided with a water receiving disc.

Further, a plurality of heating panels are arranged on the heating base, the number of the heating panels corresponds to that of the condensing tubes, digestion bottles are correspondingly placed on the heating panels, and the condensing tubes sequentially penetrate through the lifting device and the air cooling box to enable the lower ends of the condensing tubes to be in butt joint with the digestion bottles.

Further, the lifting device comprises an electric push rod, the electric push rod is arranged inside the air cooling box, and the electric push rod penetrates through the top of the air cooling box to be connected with the lifting plate for driving the lifting plate to lift.

Further, the top of the condensing tube is provided with a water-cooling water storage cavity, a water storage port and a cooling cavity outlet; a plurality of limiting rods are arranged on the lifting plate and used for limiting the orientation of the water storage port when the condensing pipe is installed; the circulating water outlet is closely adjacent to one side of the circulating water inlet, the position of the circulating water inlet corresponds to the water storage opening, the position of the cleaning water outlet corresponds to the cooling cavity outlet, the circulating water inlet, the circulating water outlet and the cleaning water outlet are respectively connected with corresponding micro water pumps through hoses, and the micro water pumps are arranged in the circulating water tank.

Further, the water receiving disc is connected with a water outlet pipe.

Further, the front of the air cooling box is provided with a control panel, and the heating base, the air cooling box, the electric push rod, the motor and the miniature water pump are respectively and electrically connected with the control panel.

From the above description of the present utility model, compared with the prior art, the present utility model has the following advantages:

1. the cooling effect of the condensing tube is effectively improved through the double cooling effect formed by the circulating water cooling and the double-fan convection cooling, so that an accurate analysis result is ensured; the digestion bottles with different heating requirements are heated simultaneously through a plurality of heating panels which are controlled independently;

2. a rotatable top rotating frame is adopted, a miniature water pump is arranged to drive cooling water to circulate between a water cooling water storage cavity of a condensing pipe and a circulating water tank through a circulating water inlet and a circulating water outlet, so that the condensing pipe is subjected to the effect of circulating water cooling, and the condensing effect is enhanced; the position of the water outlet and the position of the condensing pipe are cleaned conveniently after detection is finished, so that inconvenience caused by manually cleaning the condensing pipe is avoided; the circulating water is used for cleaning the condensing pipe for the second time, so that the cooling water in the condensing pipe is prevented from causing microorganism breeding for a long time, and meanwhile, water resources are saved;

3 drive the condenser pipe through elevating gear and go up and down, avoid the instrument to remove the condenser pipe through manual when using, it is simpler and more convenient to operate.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the description of the embodiments below are briefly introduced, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a right side view of the present utility model;

FIG. 3 is a view showing the top swing frame of the present utility model in use;

the main reference numerals illustrate:

1. the device comprises a heating base, 2, an air cooling box, 20, a fan, 30, an electric push rod, 31, a lifting plate, 32, a limit rod, 4, a top rotating frame, 41, a cleaning water outlet, 42, a circulating water inlet, 43, a circulating water outlet, 5, a water receiving disc, 6, a condensing tube, 60, a water cooling water storage cavity, 61, a water storage port, 62, a cooling cavity outlet, 63 and a cooling cavity inlet.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It is to be understood that the described embodiments are preferred embodiments of the utility model and should not be taken as excluding other embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without creative efforts, are within the protection scope of the present utility model.

In the claims, specification and drawings hereof, unless explicitly defined otherwise, the terms "first," "second," or "third," etc. are used for distinguishing between different objects and not for describing a particular sequential order.

In the claims, specification and drawings of the present utility model, unless explicitly defined otherwise, references to orientation or positional relationship such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. are based on the orientation and positional relationship shown in the drawings and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element referred to must have a particular orientation or be constructed and operated in a particular orientation, nor should it be construed as limiting the particular scope of the utility model.

In the claims, specification and drawings of the present utility model, unless explicitly defined otherwise, the term "fixedly connected" or "fixedly connected" should be construed broadly, i.e. any connection between them without a displacement relationship or a relative rotation relationship, that is to say includes non-detachably fixedly connected, integrally connected and fixedly connected by other means or elements.

In the claims, specification and drawings of the present utility model, the terms "comprising," having, "and variations thereof as used herein, are intended to be" including but not limited to.

Example 1, see fig. 1-3:

the top of the condensation pipe 6 is provided with a water-cooling water storage cavity 60, a water storage port 61 and a cooling cavity outlet 62, cooling water is injected into the water-cooling water storage cavity 60 through the water storage port 61, the cooling cavity penetrates through the condensation pipe 6, and the bottom of the condensation pipe 6 is provided with a cooling cavity inlet 63; in this embodiment, the condensation pipe is a glass burr return pipe commonly found in the market.

A COD reflux digestion instrument comprises a heating base 1, wherein a plurality of heating panels are arranged on the heating base 1, digestion bottles are correspondingly arranged on the heating panels, so that different digestion bottles can be heated conveniently at the same time;

the upper part of the heating base 1 is connected with an air cooling box 2 through a supporting frame, and fans 20 are symmetrically arranged on two sides in the air cooling box 2 and used for convection cooling so as to accelerate the condensation efficiency of the condensation pipe 6;

the air cooling box 2 is provided with a lifting device;

the lifting device is provided with condensation pipes 6, the number of the condensation pipes 6 corresponds to that of the heating panels, and the condensation pipes 6 sequentially penetrate through the lifting device and the air cooling box 2 to enable the cooling cavity inlet 63 to be in butt joint with the digestion bottle; in this embodiment, the number of the condensation ducts 6 and the number of the heating panels are 4.

The lifting device is used for driving the condensing tube 6 to lift, when the digestion bottle is used, after the condensing tube 6 is lifted, the digestion bottle is placed on the corresponding heating panel, and then the condensing tube 6 is lowered so that the lower end of the condensing tube 6 is inserted into the digestion bottle, and the operation of manually moving the condensing tube 6 when the digestion bottle is placed is saved;

the lifting device comprises an electric push rod 30, wherein the electric push rod 30 is arranged inside the air cooling box 2, and the electric push rod 30 penetrates through the top of the air cooling box 2 and is connected with a lifting plate 31 for driving the lifting plate 31 to lift; the lifting plate 31 is provided with a plurality of limiting rods 32 for limiting the orientation of the water storage port 61 when the condenser pipe 6 is installed; the water storage port 61 is toward the rear side of the lifting plate 31;

the rear side of the top of the lifting plate 31 is rotationally connected with a top rotating frame 4 through a connecting rod, and the top rotating frame 4 is driven to rotate through a motor;

the top rotating frame 4 is provided with a cleaning water outlet 41, the position of the cleaning water outlet 41 is opposite to the position of the cooling cavity outlet 62, and one side of the cleaning water outlet 41 is provided with a circulating water inlet 42 and a circulating water outlet 43; the circulating water outlet 43 is closely adjacent to one side of the circulating water inlet 42, the position of the circulating water inlet 42 corresponds to the water storage port 61, the position of the cleaning water outlet 41 corresponds to the cooling cavity outlet 62, a certain interval is arranged between the cleaning water outlet 41 and the corresponding cooling cavity outlet 62, so that heated gas in the digestion bottle after being heated is conveniently discharged upwards, and in the embodiment, the interval is 10mm;

the circulating water inlet 42, the circulating water outlet 43 and the cleaning water outlet 41 are respectively connected with corresponding micro water pumps through hoses, and the micro water pumps are arranged in the circulating water tank, so that cooling water in the water-cooling water storage cavity 60 of the condensing pipe 6 is the same as water used for cleaning the condensing pipe, water in the circulating water tank is secondarily utilized, water resources are saved, meanwhile, water in the water-cooling water storage cavity 60 is pumped away after the circulating water storage cavity is used, the phenomenon that moss grows out of the inner wall of the water-cooling water storage cavity 60 due to microorganism breeding is avoided due to the fact that moss is difficult to clean due to the structure of the water-cooling water storage cavity 60, and the cooling effect is affected; the hose connected to the circulating water inlet 42 is abutted against the hose connected to the washing water outlet 41 so as to extend into the water storage port 61.

Since the water storage port 61 of the condensation pipe 6 is generally inclined, the water storage port 61 faces the rear side of the lifting plate 31, and the top rotating frame 4 is arranged at the rear side of the top of the lifting plate 31, so that the circulating water inlet 42 and the circulating water outlet 43 can smoothly enter the water storage port 61 when the top rotating frame 4 is rotated;

due to the flexible and bending-facilitating function of the hose, the inlet back circulating water outlet 43 can penetrate into the bottom of the water-cooling water storage cavity 60; the depth that the circulating water inlet 42 stretches into the water storage port 61 is smaller than the depth that the circulating water outlet 43 stretches into the water storage port 61, so that a height difference is formed between the circulating water inlet 42 and the circulating water outlet 43, cooling water in the water cooling water storage cavity 60 is convenient to circulate, and the cooling effect of the condensing tube is better through circulating water cooling.

The front of the air cooling box 2 is provided with a control panel, the heating panel, the fan 20, the electric push rod 30, the motor and the miniature water pump are respectively and electrically connected with the control panel, the control panel adopts a PLC for control, wherein the control panel independently controls each heating panel, a plurality of digestion bottles with different heating temperatures can be processed at the same time, and the applicability of the COD reflux digestion instrument is improved; the control panel controls the horsepower of the micro water pump and the rotating speed of the fan 20, so that the micro water pump is convenient to adjust and control the condensation rate with more requirements; the control panel is connected with an external power supply for supplying power to the equipment;

the outside of any support frame can be dismantled and be provided with water collector 5, and the upper and lower both sides in the support frame outside are provided with fixed draw-in groove respectively, and both sides are used for blocking water collector 5's lateral wall through spring coupling has fixed fixture block in the draw-in groove.

The water pan 5 is detached from the fixing clamping groove and then placed on the heating base 1 for receiving water sprayed from the cleaning water outlet 41 and used for cleaning the condenser pipe, the water flows into the water pan 5 from the cooling cavity inlet 63 through the cooling cavity, in the embodiment, the water pan 5 is connected with a water outlet pipe for conveniently discharging the water for cleaning the condenser pipe, in other embodiments, the water pan 5 is not connected with a water outlet pipe, and after cleaning is completed, the water pan 5 is taken up to pour the water inside.

The working principle of the embodiment is as follows:

the condenser tube 6 is placed on the lifting plate 31, the orientation of the water storage port 61 during the installation of the condenser tube 6 is limited by the limiting rod 32, the water storage port 61 faces the top rotating frame direction, and the circulating water outlet 43 connected by a hose extends into the water storage port 61;

after the control panel controls the lifting device to lift the condensing tube 6, the digestion bottle is placed on the corresponding heating panel, then the condensing tube 6 is lowered to enable the lower end of the condensing tube 6 to be inserted into the digestion bottle, the control motor drives the top rotating frame 4 to rotate, the circulating water inlet 42 and the circulating water outlet 43 are enabled to be inserted into the water storage port 61 of the condensing tube 6, the cleaning water outlet 41 is aligned to the cooling cavity outlet 62 of the condensing tube 6, the corresponding heating panel is controlled to heat according to the placement number and placement positions of the digestion bottle by the control panel, fans 20 are symmetrically arranged on two sides in the air cooling box 2 and used for convection cooling, and the corresponding micro water pump is controlled to conduct cooling water circulation from the circulating water inlet 42 and the circulating water outlet 43 for double cooling; if different digestion bottles have different heating temperature and time requirements, the control panel is used for independent control;

after the cod reflux digestion is completed, the lifting device is controlled by the control panel to lift the condensing tube 6, each digestion bottle is removed, the water receiving disc 5 is disassembled, the water receiving disc 5 is placed on the heating base 1, the corresponding miniature water pump is controlled by the control panel to pump water from the circulating water tank to the cleaning water outlet 41, at the moment, the water in the circulating water tank is subjected to circulating water cooling, and the water in the circulating water tank is secondarily utilized to clean the cooling cavity of the condensing tube 6; the water flows to the water receiving disc 5 from the cooling cavity, the water receiving disc 5 is connected with a water outlet pipe to facilitate discharging water for cleaning the condensing pipe, and after the water receiving disc 5 is completely cleaned, the water receiving disc 5 can be placed on the supporting frame and fixed at a position through the fixing clamping groove.

The foregoing description of the embodiments and description is presented to illustrate the scope of the utility model, but is not to be construed as limiting the scope of the utility model. Modifications, equivalents, and other improvements to the embodiments of the utility model or portions of the features disclosed herein, as may occur to persons skilled in the art upon use of the utility model or the teachings of the embodiments, are intended to be included within the scope of the utility model, as may be desired by persons skilled in the art from a logical analysis, reasoning, or limited testing, in combination with the common general knowledge and/or knowledge of the prior art.

Claims (6)

1. COD backward flow digestion instrument, its characterized in that: the device comprises a heating base (1), wherein an air cooling box (2) is connected above the heating base (1) through a supporting frame, fans are symmetrically arranged on two sides in the air cooling box (2) and used for convection cooling, a lifting device is arranged on the air cooling box (2), a condensing tube (6) is arranged on the lifting device, one side of the top of the lifting device is connected with a top rotating frame (4) through a connecting rod, the top rotating frame (4) is driven to rotate through a motor, a cleaning water outlet (41) is arranged on the top rotating frame (4), the position of the cleaning water outlet (41) is opposite to the condensing tube (6), and a circulating water inlet (42) and a circulating water outlet (43) are arranged on one side of the cleaning water outlet (41); the outside of any support frame is detachably provided with a water receiving disc (5).

2. The COD reflux digestion instrument according to claim 1, wherein: a plurality of heating panels are arranged on the heating base (1), the number of the heating panels corresponds to the number of the condensing tubes (6), digestion bottles are correspondingly placed on the heating panels, and the condensing tubes (6) sequentially penetrate through the lifting device and the air cooling box (2) to enable the lower ends of the condensing tubes (6) to be in butt joint with the digestion bottles.

3. The COD reflux digestion instrument according to claim 1, wherein: the lifting device comprises an electric push rod (30), the electric push rod (30) is arranged inside the air cooling box (2), and the electric push rod (30) penetrates through the top of the air cooling box (2) to be connected with a lifting plate (31) for driving the lifting plate (31) to lift.

4. A COD reflux digestion instrument according to claim 3, wherein: the top of the condensation pipe (6) is provided with a water-cooling water storage cavity (60), a water storage port (61) and a cooling cavity outlet (62); a plurality of limiting rods (32) are arranged on the lifting plate (31) and used for limiting the orientation of the water storage opening (61) when the condensing pipe (6) is installed; the circulating water outlet (43) is adjacent to one side of the circulating water inlet (42), the position of the circulating water inlet (42) corresponds to the water storage opening (61), the position of the cleaning water outlet (41) corresponds to the cooling cavity outlet (62), the circulating water inlet (42), the circulating water outlet (43) and the cleaning water outlet (41) are respectively connected with corresponding micro water pumps through hoses, and the micro water pumps are arranged in the circulating water tank.

5. The COD reflux digestion instrument according to claim 4, wherein: the front of the air cooling box (2) is provided with a control panel, and the heating base (1), the air cooling box (2), the electric push rod (30), the motor and the miniature water pump are respectively and electrically connected with the control panel.

6. The COD reflux digestion instrument according to claim 1, wherein: the water receiving disc (5) is connected with a water outlet pipe.

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