Oxygen determination probe

Abstract

The utility model discloses an oxygen determination probe which comprises a paper tube and a support, an anode compensation lead and a cathode compensation lead are embedded on the support in a penetrating mode, a quartz tube is installed on the support, an anode thermo wire and a cathode thermo wire are arranged in the quartz tube in a penetrating mode, the anode thermo wire is connected with the cathode thermo wire, the anode thermo wire is connected with the anode compensation lead, and the cathode thermo wire is connected with the cathode compensation lead. An oxygen battery molybdenum needle is connected to the support and connected with the negative electrode compensation wire to serve as an oxygen battery negative electrode, a metal piece is connected to the support and serves as an oxygen battery positive electrode, and a refractory material is solidified on the support. The quartz tube, the oxygen battery molybdenum needle and the metal piece are fixed on the support by the refractory material, the paper tube is arranged in the support, and the top end of the paper tube is sealed by the sealing plate. According to the structure, the production cost can be reduced, the resistance in the measurement process is reduced, and the measurement accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of probe technology, specifically to an oxygen determination probe. Background Technology

[0002] An oxygen analyzer is an instrument that uses a matching oxygen probe to perform online measurements on molten iron, molten steel, and other metallic melts. The oxygen analyzer can automatically read the oxygen potential signal, analyze and calculate the content of active oxygen, and can also calculate the content of various equilibrium components through simple operations, and check the measurement records. Measurement results can be obtained quickly on-site.

[0003] Oxygen-concentrated probes are mainly used in the steelmaking process to measure the temperature and oxygen content of molten steel. Currently, oxygen-concentrated probes use a steel tube formed by casting sand as the outer shell to protect the internal components. At the same time, the steel tube serves as the positive electrode of the oxygen cell in the oxygen-concentrated probe. In the production process, the casting sand process, along with the excessive length of the steel tube and compensating wire, results in high costs. Furthermore, the steel tube, as the positive electrode of the oxygen cell, has a high resistance during measurement, leading to lower measurement accuracy. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a constant oxygen probe. This structure can reduce production costs, decrease resistance during the measurement process, and improve measurement accuracy.

[0005] An oxygen-determining probe includes a paper tube and a support. A positive and negative compensation wire are embedded in the support. A quartz tube is mounted on the support, and a positive and negative dipole wire are inserted inside the quartz tube. The positive and negative dipole wires are connected, and the positive dipole wire is connected to the positive compensation wire. The negative dipole wire is connected to the negative compensation wire. An oxygen cell molybdenum needle is connected to the support, and the molybdenum needle is connected to the negative compensation wire as the negative electrode of the oxygen cell. A metal component is connected to the support, serving as the positive electrode of the oxygen cell. A refractory material is cured on the support, fixing the quartz tube, the molybdenum needle, and the metal component to the support. The paper tube is inserted into the support, and a sealing plate closes the top of the paper tube.

[0006] Preferably, the inner wall of the paper tube includes a constant diameter section and a flared section located above the constant diameter section. The diameter of the flared section gradually decreases from top to bottom, making the paper tube diameter even thinner. The support has a variable diameter section, which contacts and abuts against the flared section of the paper tube.

[0007] Preferably, the positive and negative electrode wires are welded together.

[0008] Preferably, the positive compensation wire is welded to the positive dipole wire.

[0009] Preferably, the negative electrode compensating wire is welded to the negative electrode dipole wire.

[0010] Preferably, the molybdenum needle of the oxygen battery is welded to the negative electrode compensation wire.

[0011] Preferably, the sealing plate is cardboard.

[0012] Preferably, the bracket has a refractory head sleeve, the refractory material is cured inside the refractory head sleeve, and a protective cap is fixed inside the refractory head sleeve.

[0013] The beneficial effects of this utility model are as follows: In this technical solution, a paper tube is used to accommodate the support. Compared with traditional paper tubes, the paper tube has a smaller diameter and lower cost. A quartz tube is set on the support, and a positive and negative dipole wires are set inside the quartz tube. A positive and negative compensating wires are embedded on the support to form a thermocouple. An oxygen cell molybdenum needle and a metal part are set on the support. The oxygen cell molybdenum needle is connected to the negative compensating wire as the negative electrode of the oxygen cell, and the metal part is connected to the support as the positive electrode of the oxygen cell. In use, the oxygen cell positive electrode, oxygen cell negative electrode, and positive compensating wire are all connected to the oxygen analyzer. In this way, the metal part replaces the traditional steel tube as the positive electrode of the oxygen cell. The metal part is designed to be small in size, low in cost, and low in resistance. During the measurement process, the resistance can be reduced and the measurement accuracy can be improved. Furthermore, all the structures are integrated on the support, which can greatly reduce the product size and reduce the transportation space occupied. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0015] Figure 1 This is a front sectional view of the present invention.

[0016] In the attached diagram, 1-paper tube, 2-support, 3-quartz tube, 4-refractory material, 5-sealing plate, 6-molybdenum needle for oxygen cell, 7-metal part, 8-refractory mud head cover, 9-protective cap. Detailed Implementation

[0017] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0018] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0019] Example 1

[0020] like Figure 1 As shown, this embodiment provides an oxygen determination probe, including a paper tube 1 and a bracket 2. A positive compensation wire and a negative compensation wire are embedded in the bracket 2. A quartz tube 3 is mounted on the bracket 2, and a positive dipole wire and a negative dipole wire are inserted into the quartz tube 3. The positive and negative dipole wires are connected, and the positive dipole wire is connected to the positive compensation wire, and the negative dipole wire is connected to the negative compensation wire. An oxygen cell molybdenum needle 6 is connected to the bracket 2. The oxygen cell molybdenum needle 6 is connected to the negative compensation wire as the negative electrode of the oxygen cell. A metal part 7 is connected to the bracket 2, serving as the positive electrode of the oxygen cell. A refractory material 4 is cured on the bracket 2, fixing the quartz tube 3, the oxygen cell molybdenum needle 6, and the metal part 7 to the bracket 2. The paper tube 1 is inserted into the bracket 2, and a sealing plate 5 seals the top of the paper tube 1.

[0021] In this embodiment, a paper tube 1 is used to house the support 2. The paper tube 1 is less expensive than traditional paper tubes. A quartz tube 3 is set on the support 2, and a positive and negative dipole wires are set inside the quartz tube 3. A positive and negative compensating wires are embedded on the support 2 to form a thermocouple. An oxygen cell molybdenum needle 6 and a metal part 7 are set on the support 2. The oxygen cell molybdenum needle 6 is connected to the negative compensating wire as the negative electrode of the oxygen cell, and the metal part 7 is connected to the support 2 as the positive electrode of the oxygen cell. In use, the oxygen cell positive electrode, the oxygen cell negative electrode, and the positive compensating wire are all connected to the oxygen analyzer. In this way, the metal part 7 replaces the traditional steel tube as the positive electrode of the oxygen cell. The metal part 7 is designed to be small in size, low in cost, and low in resistance. During the measurement process, it can reduce resistance and improve the measurement accuracy. Furthermore, all the structures are integrated on the support 2, which can greatly reduce the product size and reduce the transportation space occupied.

[0022] In this embodiment, the sealing plate 5 seals the top of the paper tube 1 for protection. During assembly, after the quartz tube 3, the oxygen cell molybdenum needle 6, and the metal parts 7 are all installed on the bracket 2, they are placed into the mold for casting and curing of the refractory material 4.

[0023] In this embodiment, the refractory material 4 is cured on the support 2 by using a mold, which can ensure the uniformity of the product and improve production efficiency.

[0024] In this embodiment, the inner wall of the paper tube 1 includes a constant diameter section and a flared section located above the constant diameter section. The diameter of the flared section gradually decreases from top to bottom. The support 2 has a variable diameter section, which contacts and abuts against the flared section of the paper tube 1. The functions of the flared section of the paper tube 1 in this embodiment are: firstly, to facilitate the insertion of the support 2 into the paper tube 1; and secondly, after the support 2 is inserted into the paper tube 1, the variable diameter section of the support 2 contacts and abuts against the flared section of the paper tube 1, thus limiting the position of the support 2.

[0025] The welding of the positive and negative dipole wires described in this embodiment.

[0026] In this embodiment, the positive compensation wire is welded to the positive dipole wire.

[0027] In this embodiment, the negative electrode compensating wire is welded to the negative electrode dipole wire.

[0028] In this embodiment, the molybdenum needle 6 of the oxygen battery is welded to the negative electrode compensation wire.

[0029] In this embodiment, the sealing plate 5 is made of cardboard. Using cardboard for the sealing plate in this embodiment results in lower production costs.

[0030] In this embodiment, the support 2 has a refractory head sleeve 8, and the refractory material 4 is solidified inside the refractory head sleeve 8. A protective cap 9 is fixed on the refractory head sleeve 8. In this embodiment, after the quartz tube 3, the oxygen cell molybdenum needle 6, and the metal part 7 are installed on the support 2, the refractory head sleeve 8 is installed on the support 2, then the refractory material 4 is cast, and then the protective cap 9 is installed to protect each component.

[0031] In this embodiment, the bracket 2 is provided with a fixing hole or a bayonet for fixing the molybdenum needle 6 of the oxygen battery, and the bracket 2 is provided with a fixing hole or a bayonet for fixing the metal part 7.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. An oxygen determination probe, characterized by The application relates to a paper tube (1) and a support (2) with positive and negative compensation conductors embedded in the support (2), a quartz tube (3) is installed on the support (2), positive and negative filaments are embedded in the quartz tube (3), the positive and negative filaments are connected, the positive filament is connected with the positive compensation conductor, the negative filament is connected with the negative compensation conductor, a molybdenum needle (6) of an oxygen cell is connected to the support (2) and serves as a negative electrode of the oxygen cell, a metal piece (7) is connected to the support (2) and serves as a positive electrode of the oxygen cell, a refractory material (4) is solidified on the support (2) and fixes the quartz tube (3), the molybdenum needle (6) and the metal piece (7) on the support (2), the support (2) is loaded into the paper tube (1), and a sealing plate (5) seals the top end of the paper tube (1).

2. The oxygen probe of claim 1, wherein The inner wall of the paper tube (1) comprises an equal-diameter section and a flared section above the equal-diameter section, the diameter of the flared section gradually decreases from top to bottom, the support (2) is provided with a variable-diameter section, and the variable-diameter section is in contact with the flared section of the paper tube (1).

3. The oxygen probe of claim 1, wherein The positive and negative filaments are welded.

4. The oxygen specific probe of claim 1, wherein, The positive compensation conductor is welded with the positive filament.

5. The oxygen specific probe of claim 1, wherein, The negative compensation conductor is welded with the negative filament.

6. The oxygen specific probe of claim 1, wherein, The molybdenum needle (6) of the oxygen cell is welded with the negative compensation conductor.

7. The oxygen specific probe of claim 1, wherein The sealing plate (5) is a paper plate.

8. The oxygen specific probe of claim 1, wherein, The support (2) is provided with a refractory mud head sleeve (8), the refractory material (4) is solidified in the refractory mud head sleeve (8), and a protective cap (9) is fixed in the refractory mud head sleeve (8).

Images