High-temperature and high-pressure digestion device for on-line total nitrogen analyzer

Abstract

The utility model discloses a high-temperature and high-pressure digestion device for an online total nitrogen analyzer, which comprises a digestion box, a mounting cover is mounted at the top end of the digestion box, a motor is mounted at the top end of the mounting cover, liquid inlet funnels are mounted on two sides of the motor, and through grooves are formed in two sides in the mounting cover. In the use process, digestion liquid enters the stirring shaft and the stirring rod from the liquid inlet funnel and is sprayed out from each liquid outlet, so that the digestion liquid can be scattered more uniformly, and meanwhile, under the mutual stirring action of the stirring shaft and the stirring rod, the digestion liquid and water can be fully fused and reacted, so that the digestion effect is improved. Meanwhile, by arranging the fixing mechanism, the mounting cover can be conveniently pulled out from the interior of the digestion box, so that a worker can conveniently maintain and replace the stirring assembly, the service life of the stirring assembly is prolonged, and the use value of the stirring assembly is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of sample pre-treatment of an online total nitrogen analyzer, in particular to a high-temperature and high-pressure digestion device for an online total nitrogen analyzer. Background Art

[0002] Total nitrogen includes all nitrogen compounds in the solution, i.e. the sum of nitrite nitrogen, nitrate nitrogen, inorganic nitrogen, dissolved nitrogen and nitrogen in most organic nitrogen compounds. When the nitrite nitrogen in the water is too high, drinking this water will combine with protein to form nitrosamines, which is a strong carcinogen and is extremely harmful to the body if consumed for a long time. Therefore, it is necessary to use an online total nitrogen analyzer to test the water quality;

[0003] Chinese patent authorization announcement number CN210665245U discloses a high-temperature and high-pressure digestion device for an online total nitrogen analyzer, which includes: a mounting bracket, a digestion tank containing a digestion solution, and a mounting block. The mounting block is mounted on the mounting bracket, and a mounting groove is provided at one end of the mounting block facing the digestion tank. The digestion tank is clamped and tightly abutted in the mounting groove. First threaded holes connected to the mounting groove and the digestion tank are correspondingly provided on the mounting bracket and the mounting block, and the first threaded hole is connected to a connecting pipe. A semicircular abutting block is slidably connected on both sides of the notch of the mounting groove on one side of the mounting block away from the mounting bracket, and the abutting block conflicts with the mounting block. A fixing block is fixedly connected to the mounting block, and a bolt is threadedly connected to the fixing block. The bolt passes through the fixing block and is rotatably connected to the abutting block, and the two abutting blocks are wrapped around the outside of the digestion tank. The utility model has the effect of enhancing the sealing of the digestion tank. The above-mentioned existing technical solution has the following shortcomings: this technical solution is conducive to reducing the possibility of leakage of the digestion solution in the digestion tank through the sealing effect of the digestion tank, thereby ensuring the normal implementation of the digestion effect of the digestion tank, but the technical solution is relatively simple in terms of the stirring structure, and it is difficult to fully blend the digestion solution with the water quality, which reduces the work efficiency and work quality. At the same time, it is difficult to judge whether the water quality is sufficiently digested after digestion. We need to make further improvements on this. Utility Model Content

[0004] The purpose of the utility model is to provide a high-temperature and high-pressure digestion device for an online total nitrogen analyzer to solve the problem that the stirring structure of the digestion device proposed in the above background technology is relatively general.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-temperature and high-pressure digestion device for an online total nitrogen analyzer, comprising a digestion box, a mounting cover is installed at the top of the digestion box, and a motor is installed at the top of the mounting cover, liquid inlet funnels are installed on both sides of the motor, through grooves are provided on both sides of the inside of the mounting cover, stirring shafts are installed on both sides of the bottom end of the mounting cover, and stirring rods are evenly installed on the outside of the stirring shaft, and liquid outlets are evenly provided on the outside of the stirring rod, a rotating shaft is installed at the bottom end of the mounting cover, and the rotating shaft and the stirring shaft are connected by a pulley, the inside of the stirring shaft and the stirring rod are in a hollow state, and heating plates are installed on both sides of the inside of the digestion box.

[0006] When using the high-temperature and high-pressure digestion device for an online total nitrogen analyzer of the technical solution, the digestion solution and the water quality can be fully fused and reacted under the mutual stirring action of the stirring shaft and the stirring rod, thereby improving the work efficiency and work quality. At the same time, by setting a fixing mechanism, it is convenient for the staff to repair and replace the stirring component;

[0007] Preferably, positioning blocks are installed on both sides of the installation cover close to one end of the digestion box, positioning grooves are provided on both sides of the digestion box close to one end of the installation cover, and the positioning grooves are connected to the positioning blocks, mounting frames are installed on both sides of the digestion box, and fixing mechanisms are provided inside the mounting frames.

[0008] Preferably, the fixing mechanism includes a threaded groove, and the threaded grooves are all arranged inside the mounting frame, a threaded rod is installed inside the threaded groove, and a handwheel is installed on the outside of the threaded rod, a fixing plate is installed on the inside of the threaded rod, and a fixing block is installed on the inside of the fixing plate, anti-slip teeth are evenly installed on the outside of the fixing block, and a fixing groove is arranged inside the positioning block, and the fixing groove is connected to the fixing block.

[0009] Preferably, the size of the fixing blocks is equal to the size of the fixing grooves, and the cross-sections of the fixing blocks are all arranged to be trapezoidal.

[0010] Preferably, the cross-sections of the anti-slip teeth are all triangular, and they are arranged at equal intervals on the outside of the fixing block.

[0011] Preferably, a sampling box is installed inside the digestion box, and a baffle is installed on the top of the sampling box, sampling grooves are evenly arranged inside the sampling box, a baffle is installed on the outside of the sampling box, and a handle is installed on the top of the sampling box.

[0012] Preferably, a sliding block is evenly installed on one side of the shielding plate close to the sampling box, and a sliding groove is evenly arranged on one side of the sampling box close to the shielding plate, and the sliding grooves are all connected to the sliding block.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the high temperature and high pressure digestion device for the online total nitrogen analyzer not only realizes the function of fully blending and stirring, but also realizes the function of sampling and detection;

[0014] (1) During use, the digestion liquid enters the interior of the stirring shaft and the stirring rod from the liquid inlet funnel and is sprayed out from each liquid outlet, so that the digestion liquid can be distributed more evenly. At the same time, under the mutual stirring action of the stirring shaft and the stirring rod, the digestion liquid and the water quality can be fully fused and reacted, thereby improving work efficiency and work quality. At the same time, by setting a fixing mechanism, the installation cover can be easily withdrawn from the interior of the digestion box, so that the staff can repair and replace the stirring component, thereby extending its service life and use value;

[0015] (2) By installing the sampling box, the digested water can enter the interior of the sampling tank, and with the sliding cooperation of the slide groove and the slider, the baffle can be blocked on the outside of the sampling box to prevent confusion between layers during the withdrawal of the sampling box. At the same time, through layered sampling, it can be detected whether the digested liquid is fully integrated with the water quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0018] Figure 2 For the utility model Figure 1 Schematic diagram of the structure at A in the middle;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the sampling box of the utility model from top view;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the sampling box of the utility model;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the stirring shaft and stirring rod of the utility model.

[0022] Explanation of the reference numerals in the figure: 1. Motor; 2. Liquid inlet funnel; 3. Baffle plate; 4. Handle; 5. Mounting cover; 6. Sampling box; 7. Heating plate; 8. Digestion box; 9. Stirring rod; 10. Liquid outlet; 11. Stirring shaft; 12. Pulley; 13. Through groove; 14. Rotating shaft; 15. Positioning block; 16. Positioning groove; 17. Mounting bracket; 18. Fixing mechanism; 1801. Threaded groove; 1802. Handwheel; 1803. Threaded rod; 1804. Fixing plate; 1805. Anti-slip teeth; 1806. Fixing block; 1807. Fixing groove; 19. Sampling groove; 20. Slide groove; 21. Sliding block. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 5 , the utility model provides an embodiment: a high temperature and high pressure digestion device for an online total nitrogen analyzer, comprising a digestion box 8;

[0025] A sampling box 6 is installed inside the digestion box 8, and a shielding plate 3 is installed on the top of the sampling box 6. Sampling grooves 19 are evenly arranged inside the sampling box 6. The shielding plate 3 is installed on the outside of the sampling box 6. A handle 4 is installed on the top of the sampling box 6. A slider 21 is evenly installed on the side of the shielding plate 3 close to the sampling box 6. A chute 20 is evenly arranged on the side of the sampling box 6 close to the shielding plate 3, and the chute 20 is connected to the slider 21.

[0026] Specifically, Figure 1 and Figure 4 As shown, when in use, by installing the sampling box 6 and the shielding plate 3, the sampling box 6 is prevented from being mixed between layers during the withdrawal process. At the same time, the layered sampling can be used to detect whether the digestion solution is fully integrated with the water quality.

[0027] A mounting cover 5 is installed on the top of the digestion box 8;

[0028] Positioning blocks 15 are installed on both sides of the installation cover 5 near one end of the digestion box 8, and positioning grooves 16 are provided on both sides of the digestion box 8 near one end of the installation cover 5, and the positioning grooves 16 are connected to the positioning blocks 15. Mounting frames 17 are installed on both sides of the digestion box 8, and the interior of the mounting frame 17 is provided with a fixing mechanism 18, and the fixing mechanism 18 includes a threaded groove 1801, and the threaded groove 1801 is arranged inside the mounting frame 17, and a threaded rod 1803 is installed inside the threaded groove 1801, and a hand wheel 1802 is installed on the outer side of the threaded rod 1803, and the threaded rod A fixing plate 1804 is installed on the inner side of each of the fixing plates 1804, and a fixing block 1806 is installed on the inner side of each of the fixing plates 1804. Anti-skid teeth 1805 are evenly installed on the outer side of each of the fixing blocks 1806. A fixing groove 1807 is provided inside each of the positioning blocks 15, and each of the fixing grooves 1807 is connected to the fixing blocks 1806. The size of each of the fixing blocks 1806 is equal to that of the fixing groove 1807. The cross-section of each of the fixing blocks 1806 is set to be trapezoidal, and the cross-section of the anti-skid teeth 1805 is set to be triangular, and they are evenly spaced and arranged on the outer side of the fixing block 1806.

[0029] Specifically, Figure 1 and Figure 2 As shown, when in use, by providing a fixing mechanism 18, the installation cover 5 can be easily pulled out from the inside of the digestion box 8, so that the staff can repair and replace the stirring assembly, thereby extending its service life and use value;

[0030] A motor 1 is installed at the top of the mounting cover 5, and liquid inlet funnels 2 are installed on both sides of the motor 1. Through grooves 13 are provided on both sides of the inside of the mounting cover 5. A stirring shaft 11 is installed on both sides of the bottom end of the mounting cover 5, and stirring rods 9 are evenly installed on the outside of the stirring shaft 11, and liquid outlets 10 are evenly provided on the outside of the stirring rod 9. A rotating shaft 14 is installed at the bottom end of the mounting cover 5, and the rotating shaft 14 is connected to the stirring shaft 11 through a pulley 12. The inside of the stirring shaft 11 and the stirring rod 9 are in a hollow state, and heating plates 7 are installed on both sides of the inside of the digestion box 8.

[0031] Working principle: When the utility model is in use, the digestion liquid enters the inside of the stirring shaft 11 and the stirring rod 9 from the liquid inlet funnel 2. At this time, the motor 1 is started to drive the rotating shaft 14 to rotate and, with the cooperation of the pulley 12, the stirring shafts 11 on both sides and the outer stirring rods 9 can be driven to rotate synchronously. The stirring rods 9 can also spray the digestion liquid from each liquid outlet 10 during the rotation process, so that the digestion liquid and the water quality can be fully fused and reacted, thereby improving the work efficiency and work quality;

[0032] After the digestion work is completed, the sampling box 6 is placed into the digestion box 8, and the digested water can enter the sampling trough 19. Under the sliding cooperation of the slide groove 20 and the slider 21, the baffle plate 3 can be blocked on the outside of the sampling box 6 to prevent confusion between layers during the withdrawal of the sampling box 6.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A high temperature and high pressure digestion device for an online total nitrogen analyzer, comprising a digestion box (8), characterized in that: The top of the digestion box (8) is provided with a mounting cover (5), and the top of the mounting cover (5) is provided with a motor (1), both sides of the motor (1) are provided with a liquid inlet funnel (2), both sides of the inside of the mounting cover (5) are provided with a through groove (13), both sides of the bottom of the mounting cover (5) are provided with a stirring shaft (11), and the outside of the stirring shaft (11) is evenly provided with a stirring rod (9), and the outside of the stirring rod (9) is evenly provided with a liquid outlet (10), the bottom of the mounting cover (5) is provided with a rotating shaft (14), and the rotating shaft (14) is connected to the stirring shaft (11) through a pulley (12), the inside of the stirring shaft (11) and the stirring rod (9) are in a hollow state, and both sides of the inside of the digestion box (8) are provided with a heating plate (7).

2. The high temperature and high pressure digestion device for an online total nitrogen analyzer according to claim 1, characterized in that: Positioning blocks (15) are installed on both sides of the installation cover (5) close to one end of the digestion box (8); positioning grooves (16) are provided on both sides of the digestion box (8) close to one end of the installation cover (5); and the positioning grooves (16) are connected to the positioning blocks (15); installation frames (17) are installed on both sides of the digestion box (8); and fixing mechanisms (18) are provided inside the installation frames (17).

3. The high temperature and high pressure digestion device for an online total nitrogen analyzer according to claim 2, characterized in that: The fixing mechanism (18) comprises a threaded groove (1801), and the threaded groove (1801) is arranged inside the mounting frame (17), a threaded rod (1803) is installed inside the threaded groove (1801), and a hand wheel (1802) is installed on the outside of the threaded rod (1803), a fixing plate (1804) is installed on the inside of the threaded rod (1803), and a fixing block (1806) is installed on the inside of the fixing plate (1804), and anti-slip teeth (1805) are evenly installed on the outside of the fixing block (1806), and a fixing groove (1807) is arranged inside the positioning block (15), and the fixing groove (1807) is connected to the fixing block (1806).

4. The high temperature and high pressure digestion device for an online total nitrogen analyzer according to claim 3, characterized in that: The size of the fixing block (1806) is equal to the size of the fixing groove (1807), and the cross-section of the fixing block (1806) is set to be trapezoidal.

5. The high temperature and high pressure digestion device for an online total nitrogen analyzer according to claim 3, characterized in that: The cross-sections of the anti-slip teeth (1805) are all arranged in a triangular shape, and are arranged at equal intervals on the outer side of the fixing block (1806).

6. The high temperature and high pressure digestion device for an online total nitrogen analyzer according to claim 1, characterized in that: A sampling box (6) is installed inside the digestion box (8), and a shielding plate (3) is installed on the top of the sampling box (6). Sampling grooves (19) are evenly arranged inside the sampling box (6), a shielding plate (3) is installed on the outside of the sampling box (6), and a handle (4) is installed on the top of the sampling box (6).

7. The high temperature and high pressure digestion device for an online total nitrogen analyzer according to claim 6, characterized in that: The side of the baffle plate (3) close to the sampling box (6) is evenly provided with a slider (21), and the side of the sampling box (6) close to the baffle plate (3) is evenly provided with a slide groove (20), and the slide groove (20) is connected to the slider (21).

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