Ozone concentration detection mechanism of ozone generator

Abstract

The utility model relates to an ozone concentration detection mechanism of an ozone generator. The ozone concentration detection mechanism comprises a discharge gap, an end block, a pipe part and an ozone sensor, a sinking cavity is formed in the end face of one side of a block body of the end block, an annular cavity is formed in the end face of the other side of the block body, the sinking cavity is relatively located in the inner ring direction of the annular cavity, and a communicating hole is formed between the sinking cavity and the annular cavity. After the end block is fixed on the discharge end side of the discharge gap, the outer port of the annular cavity can be communicated with the discharge port of the discharge gap in an involution manner. An annular axial flange is formed on the end face of one side of the pipe part, so that an inner cavity of the axial flange is communicated with the shaft hole of the pipe part, and the inner diameter of the axial flange is smaller than that of the shaft hole. And one end of the pipe part is connected with the outer port of the sinking cavity, and the axial flange extends into the sinking cavity. The ozone sensor is fixed on the end surface of one end, extending into the sinking cavity, of the pipe part. According to the utility model, adverse effects of airflow in the environment where the ozone sensor is located on the detection accuracy and stability of the ozone sensor can be simulated.

Description

Technical Field

[0001] The utility model relates to the technical field of ozone production devices, in particular to an ozone concentration detection mechanism which is suitable for being installed on an ozone generator and is used for detecting the ozone production efficiency of the ozone generator. Background Art

[0002] Most existing ozone generators place ozone sensors on the ozone-containing gas flow path (hereinafter referred to as flow path) inside the shell. At the same time, the flow path of the ozone generator is mostly (roughly) linear from its air inlet to the exhaust port, and there is a potential for strong airflow to be easily generated at many locations on the flow path. When the ozone sensor is arranged on the flow path from the air inlet to the exhaust port, the ozone sensor is easily exposed to the strong airflow and is easily affected by the airflow during the measurement of ozone concentration. Utility Model Content

[0003] The utility model provides an ozone generator ozone concentration detection mechanism which can simulate the influence of airflow on the flow path where the ozone sensor is located. According to such an ozone concentration detection mechanism, the state of the ozone-containing gas at the exhaust port can be improved, because the ozone-containing gas makes multiple turns on the path at the end of the flow path, so that the fluidity of the airflow is weakened and the ozone sensor is located in a position where it is easy to avoid significant fluidity of the airflow, thereby achieving the purpose of simulating the influence of the airflow on the ozone sensor.

[0004] The technical solution adopted by the utility model to solve the technical problem is: an ozone concentration detection mechanism for an ozone generator, comprising a ground electrode tube, a high-voltage electrode tube, a dielectric tube sleeved outside the high-voltage electrode tube, a cooler arranged outside the ground electrode tube, an end block, a tube part and an ozone sensor. A discharge gap is formed between the outer circumference of the dielectric tube and the inner circumference of the ground electrode tube. It may also include a slider part and a spring.

[0005] An axially extending sink cavity is formed on one end surface of the block body of the end block, and an axially extending annular cavity is formed on the other end surface. The sink cavity is relatively located at the inner circle of the annular cavity, and a connecting hole is provided on the partition wall between the sink cavity and the annular cavity.

[0006] The end block is fixed on the discharge outlet side of the discharge gap and the outer port of the annular cavity is aligned and connected with the discharge outlet of the discharge gap. The end face of the block body facing the discharge outlet side of the discharge gap can be sealed and contacted with the end face of the dielectric tube and the end face of the high-voltage electrode tube at the same time. The dielectric tube port and the high-voltage electrode tube port on the discharge outlet side of the discharge gap can also be blocked and an axial gap is formed between the end face of the block body facing the discharge outlet side of the discharge gap and the end face of the dielectric tube and the end face of the high-voltage electrode tube.

[0007] An annular axial flange is formed on one end surface of the tube, and the inner cavity of the axial flange is axially connected with the axial hole of the tube. The inner diameter of the axial flange is smaller than the inner diameter of the axial hole. A plurality of axial grooves are arranged on the wall of the axial flange, and the extension length of the axial grooves is smaller than the extension length of the axial flange.

[0008] One end of the tube portion is fixed at the outer port of the sink cavity and the axial flange is extended into the sink cavity.

[0009] The slider portion includes a disc-shaped block, a connecting rod, and a plurality of arm rods provided at one end of the connecting rod. The other end of the connecting rod is fixedly connected to the block. The plurality of arm rods are alternately distributed around the circumference and are arranged to extend radially, and the arm rods can be matched with the axial grooves one by one. The outer circumference of the block contacts the inner circumference of the axial flange, so that the block can reciprocate axially relative to the axial flange.

[0010] The spring is sleeved on the axial flange, one end of the spring contacts the end surface of the tube, and the other end contacts the arm. When the axial flange relative to the block undergoes axial reciprocating movement, the spring can undergo expansion and contraction changes.

[0011] The ozone sensor is fixed on an end surface of the tube portion extending into the sink cavity.

[0012] Optionally, an external thread is formed on one end of the outer circumferential surface of the tube portion, and an internal thread countersunk hole corresponding to and matching the external thread on the tube portion is formed at the outer port of the countersunk cavity.

[0013] When the tube portion and the block body are connected via the threaded structure, the axial distance between the opposing surfaces of the axial flange and the sinker cavity can be adjusted by screwing the tube portion to extend the axial length into the sinker cavity, thereby adjusting the airflow state in the sinker cavity and the state of the airflow from the sinker cavity to the axial hole.

[0014] Optionally, the inner end of the axial hole of the tube is formed into a tapered cavity with the expanded end of the tapered cavity facing inwards and the narrowed end connected to the inner cavity of the axial flange. The inner diameter of the narrowed end of the tapered cavity is not less than the inner diameter of the inner cavity of the axial flange.

[0015] The beneficial effect of the utility model is that the patent can simulate the degree to which the ozone sensor is affected by the airflow on the flow path where it is located. The use of such an ozone concentration detection mechanism can improve the state of the ozone-containing gas at the exhaust port, because the ozone-containing gas makes multiple turns on the path at the end of the flow path, which weakens the fluidity of the airflow and the ozone sensor is located in a position on the path that can easily avoid significant airflow fluidity, thereby achieving the purpose of reducing the impact of the airflow on the ozone sensor.

[0016] In the improved solution, the ozone-containing gas is discharged after overcoming a certain pressure resistance, which can further simulate the fluidity of the airflow and help improve the ability of the simulated airflow to affect the ozone sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure when the ozone concentration detection mechanism is assembled on the electrode tube group.

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the ozone concentration detection mechanism.

[0019] Figure 3 This is a schematic diagram of the left-side structure of the end block.

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the tube.

[0021] Figure 5 It is a schematic diagram of the left side structure of the tube.

[0022] Figure 6 It is a schematic diagram of the cross-sectional structure of the slider part.

[0023] Figure 7 It is a schematic diagram of the left view of the slider part.

[0024] In the figure: 100 grounding electrode tube, 200 high-voltage electrode tube, 300 dielectric tube, 400 discharge gap, 500 cooler; 10 end block, 11 body, 111 flange, 112 sealing ring, 12 sink cavity, 13 annular cavity, 14 connecting hole;

[0025] 20 pipe portion, 21 axial hole, 211 first external thread, 212 second external thread, 22 axial flange, 221 axial groove;

[0026] 30 slider portion, 31 block body, 32 connecting rod, 33 arm rod; 40 spring; 50 ozone sensor. DETAILED DESCRIPTION

[0027] The structures, proportions, sizes, etc. illustrated in the drawings of the specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "front", "back", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0028] like Figures 1 to 7 The ozone concentration detection mechanism of an ozone generator shown in the figure comprises a ground electrode tube 100, a high voltage electrode tube 200, a dielectric tube 300 sleeved on the outside of the high voltage electrode tube 200, a cooler 500 arranged on the outside of the ground electrode tube 100, an end block 10, a tube part 20, a slider part 30, a spring 40 and an ozone sensor 50. The radial gap formed between the outer circumference of the dielectric tube 300 and the inner circumference of the ground electrode tube 100 is a discharge gap 400.

[0029] An axially extending sink cavity 12 is formed on the right end surface of the block body 11 of the end block 10, and an axially extending annular cavity 13 is formed on the left end surface. The sink cavity 12 is relatively located at the inner circle of the annular cavity 13, and a connecting hole 14 is provided on the partition wall between the sink cavity 12 and the annular cavity 13. The connecting hole 14 is in the radial direction.

[0030] A plurality of communicating holes 14 may be arranged around the circumference. The cavity of the communicating hole 14 may be a cylindrical cavity, a conical cavity, or a square cavity (see Figure 2 , Figure 3 shown).

[0031] The end block 10 is fixed on the discharge port side (right side) of the discharge gap 400 and the outer port of the annular cavity 13 is aligned and communicated with the discharge port of the discharge gap 400. A flange 111 is formed on the block body 11 and a sealing ring 112 is arranged on the end surface of the flange 111. The block body 11 or the end block 10 is fixed to the discharge port side of the discharge gap 400 by bolts through the flange 111, and can actually directly establish a fixed connection relationship with the shell of the cooler 500 (see FIG. Figure 1 ).

[0032] The end face (left end face) of the block body 11 facing the discharge port side of the discharge gap 400 can be sealed and contacted with the end face (right end face) of the dielectric cylinder 300 and the end face (right end face) of the high-voltage electrode tube 200 at the same time, as shown in FIG. Figure 1 The ports of the dielectric tube 300 and the high-voltage electrode tube 200 on the discharge outlet side of the discharge gap 400 may also be blocked and an axial gap may be formed between the end face of the block body 11 facing the discharge outlet side of the discharge gap 400 and the end faces of the dielectric tube 300 and the end faces of the high-voltage electrode tube 200.

[0033] An annular axial flange 22 is formed on the left end surface of the tube 20, and the inner cavity of the axial flange 22 is axially connected with the axial hole 21 of the tube 20. The inner diameter of the axial flange 22 is smaller than the inner diameter of the axial hole 21. A plurality of axial grooves 221 are arranged on the wall of the axial flange 22, which are distributed alternately around the circumference, so that the extension length of the axial grooves 221 is 1 / 3 to 2 / 3 of the extension length of the axial flange 22, and preferably in the ratio range of 2 / 5 to 1 / 2.

[0034] On the outer circumferential surface of the tube 20, a second external thread 212 and a first external thread 211 are formed at the left and right ends, respectively. The second external thread 212 at the left end matches the internal thread structure formed at the right end of the sink cavity 12, so that the tube 20 is fixed at the outer end of the sink cavity 12 and the axial flange 22 extends into the sink cavity 12. The first external thread 211 on the right end side of the tube 20 establishes a connection relationship with an external pipe fitting to transport and collect the produced gas mixed with ozone.

[0035] The slider portion 30 includes a disc-shaped block 31, a connecting rod 32, and four arm rods 33 arranged at the left end of the connecting rod 32. The right end of the connecting rod 32 is fixedly connected to the center of the block 31. The four arm rods 33 are alternately distributed around the circumference and extend radially, and the arm rods 33 can match the axial grooves 221 one by one. The outer circumference of the block 31 contacts the inner circumference of the axial flange 22, so that the block 31 can reciprocate in the axial direction relative to the axial flange 22. A sealing ring is provided on the outer circumference of the block 31.

[0036] The spring 40 is sleeved on the axial flange 22 , and one end of the spring 40 contacts the end surface of the tube 20 extending into the sink cavity 12 , and the other end of the spring 40 contacts the arm 33 .

[0037] When the block 31 moves axially back and forth relative to the axial flange 22, the spring 40 can be extended and contracted. In the initial state, the spring 40 is kept in a naturally extended state.

[0038] When the gas collected in the sink cavity 12 increases and the gas pressure gradually rises, the internal pressure can push the block 31 to move toward the axial hole 21 relative to the axial flange 22, and a (ring-shaped) radial gap appears between the outer circumference of the block 31 and the inner circumference of the axial hole 21, causing the gas mixed with ozone to flow into the axial hole 21 and be discharged.

[0039] When the amount of oxygen-containing gas delivered from the left port of the discharge gap 400 per unit time is relatively constant, the size of the gap formed between the block 31 and the axial hole 21 will be maintained within a certain range, or the axial displacement of the block 31 relative to the axial flange 22 toward the right / closer to the axial hole 21 will be within a certain range.

[0040] The ozone sensor 50 is fixed on the end face (left end face) of the tube 20 extending into the sink cavity 12. In the illustrated scheme, a plurality of ozone sensors 50 are provided and the ozone sensors 50 are alternately distributed around the circumference and fixed on the (left end) end face of the tube.

[0041] like Figure 1 , Figure 2 In the patent solution shown, after the oxygen-containing gas flows through the discharge gap 400 to generate ozone, it will pass through the annular cavity 13 and the connecting hole 14 in turn, enter the sink cavity 12 and converge, and after converging to a certain degree, it will be discharged from the axial hole 21. Therefore, the airflow will not only make multiple 90-degree turns at the end of the flow stroke, but also mixed flow will occur. The ozone sensor 50 is installed in a position on the flow path that is easy to avoid the significant flow of the airflow, so the mixed gas (mixed gas containing ozone) outside the ozone sensor 50 or the ozone-containing mixed gas that can enter the ozone sensor 50 can be homogenized and the flow capacity can be significantly weakened, which helps to weaken the adverse effects of the airflow on the ozone sensor and improve the accuracy and stability of the ozone sensor for ozone generation efficiency / ozone concentration detection.

[0042] When the tube portion 20 is connected to the block body 11 through a threaded structure, the axial distance between the opposite surfaces of the axial flange 22 and the sinker cavity 12 can be adjusted by screwing the tube portion 20 to extend into the sinker cavity 12, thereby adjusting the airflow state in the sinker cavity 12 and the flow state of the airflow from the sinker cavity 12 to the axial hole 21.

[0043] The inner end of the axial hole of the tube 20 is formed into a tapered cavity with the expanded end of the tapered cavity facing inward and the contracted end connected to the inner cavity of the axial flange 22. The inner diameter of the contracted end of the tapered cavity is not less than the inner diameter of the inner cavity of the axial flange 22.

[0044] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. The present invention can be improved in many aspects without violating the overall concept, and those familiar with the technology can modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical concept disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An ozone concentration detection mechanism for an ozone generator, comprising a ground electrode tube, a high-voltage electrode tube, a dielectric tube sleeved outside the high-voltage electrode tube, and an ozone sensor; a discharge gap is formed between the outer circumference of the dielectric tube and the inner circumference of the ground electrode tube; characterized in that: Also includes end blocks and tubes; A sink cavity is formed on one end surface of the block body of the end block, and an annular cavity is formed on the other end surface. The sink cavity is relatively located at the inner circle of the annular cavity, and a connecting hole is provided between the sink cavity and the annular cavity. After the end block is fixed to the discharge end side of the discharge gap, the outer port of the annular cavity can be matched and connected with the discharge port of the discharge gap. An annular axial flange is formed on one end surface of the tube, so that the inner cavity of the axial flange is connected with the axial hole of the tube and the inner diameter of the axial flange is smaller than the inner diameter of the axial hole; one end of the tube is connected to the outer port of the sink cavity and the axial flange extends into the sink cavity; The ozone sensor is fixed on the end surface of one end of the tube portion extending into the sink cavity.

2. The ozone generator ozone concentration detection mechanism according to claim 1, characterized in that: The end surface of the block body facing the discharge port of the discharge gap can be in contact with the end surface of the dielectric tube and the end surface of the high-voltage electrode tube at the same time.

3. The ozone concentration detection mechanism of the ozone generator according to claim 1, characterized in that: The dielectric tube port and the high-voltage electrode tube port on the discharge gap outlet side are both blocked, and an axial gap is formed between the end surface of the block body facing the discharge gap outlet side and the end surface of the dielectric tube and the end surface of the high-voltage electrode tube.

4. The ozone concentration detection mechanism of the ozone generator according to claim 1, characterized in that: A plurality of axial grooves are arranged on the wall of the axial flange and are distributed alternately around the circumference, and the axial flange also includes a slider and a spring: The slider portion includes a disc-shaped block, a connecting rod and a plurality of arm rods arranged at one end of the connecting rod; the other end of the connecting rod is connected to the block; the arm rods are alternately distributed around the circumference and extend radially and can be matched with the axial grooves one by one; the outer circumferential surface of the block matches the inner circumferential surface of the axial flange, so that the block can move axially relative to the axial flange; The spring is sleeved on the axial flange and one end of the spring contacts the end surface of the tube portion, and the other end of the spring contacts the arm rod.

5. The ozone generator ozone concentration detection mechanism according to claim 4, characterized in that: The length of the axial groove is smaller than the length of the axial flange.

6. The ozone concentration detection mechanism of an ozone generator according to any one of claims 1 to 5, characterized in that: An external thread is formed on one end of the outer peripheral surface of the tube, and an internal thread countersunk hole corresponding to and matching the external thread on the tube is formed at the outer end of the countersunk cavity.

7. The ozone concentration detection mechanism of the ozone generator according to claim 6, characterized in that: The inner end of the axial hole of the tube portion is formed into a tapered cavity with the expanded end of the tapered cavity facing inward; the inner diameter of the contracted end of the tapered cavity is not less than the inner diameter of the inner cavity of the axial flange.

8. The ozone concentration detection mechanism of an ozone generator according to any one of claims 1 to 5, characterized in that: The inner end of the axial hole of the tube portion is formed into a tapered cavity with the expanded end of the tapered cavity facing inward; the inner diameter of the contracted end of the tapered cavity is not less than the inner diameter of the inner cavity of the axial flange.

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