Gas collecting structure of a degassing device

Abstract

The present application relates to the technical field of electric power equipment, and in particular to a gas collecting structure of a degassing device, including a gas collecting chamber, an air inlet, a first air outlet, and a second air outlet connected to the interior of the gas collecting chamber are arranged outside the gas collecting chamber; the air inlet and the first air outlet connect the gas collecting chamber with the degassing device, the air inlet or the gas collecting chamber is also connected to a vacuum pump that can draw gas from the degassing device into the gas collecting chamber, the first air outlet can guide the gas in the gas collecting chamber back to the degassing device for circulation, and the circulated gas can flow out through the second air outlet. The present application effectively solves the technical problems of cylinder wear and leakage, cylinder rust, and maintenance difficulties in the prior art.

Description

Technical Field

[0001] The present application relates to the technical field of electric power equipment, and in particular to a gas collecting structure of a degassing device. Background Art

[0002] During the operation of the transformer, the gas in the transformer oil needs to be monitored online, so the gas in the transformer oil needs to be degassed. After degassing, gas sampling analysis is required, and gas collection is required before gas sampling analysis.

[0003] The existing gas collection device is connected to the cylinder piston by a horizontally placed linear motor. The piston is driven by a stepper motor to push and pull back and forth to collect gas and inject gas. Long-term use will cause wear inside the cylinder, which will lead to gas leakage. In addition, since the moisture in the gas to be detected is not easy to liquefy, the cylinder is prone to rust and produce hydrogen after a long time, affecting the detection results. In addition, the existing gas collection device has many pipelines, and installation and maintenance are relatively troublesome. Utility Model Content

[0004] The present application provides a gas collecting structure of a degassing device, so as to at least solve the technical problems of cylinder wear and leakage, cylinder rust and maintenance difficulty in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present application provides an air collecting structure of a degassing device, including an air collecting chamber, wherein an air inlet, a first air outlet and a second air outlet connected to the interior of the air collecting chamber are arranged outside the air collecting chamber; the air inlet and the first air outlet connect the air collecting chamber with the degassing device, and the air inlet or the air collecting chamber is also connected to a vacuum pump that can draw gas from the degassing device into the air collecting chamber, and the first air outlet can guide the gas in the air collecting chamber back to the degassing device for circulation, and the circulated gas can flow out through the second air outlet.

[0006] In some of the embodiments, the upper end of the interior of the gas collecting chamber is in a conical design to facilitate gas collection.

[0007] In some embodiments, the first air outlet is disposed at an upper end of the air collecting chamber.

[0008] In some of the embodiments, a drain port communicating with the interior of the air collecting chamber is provided outside the air collecting chamber.

[0009] In some of the embodiments, the lower end of the interior of the air collecting chamber is designed to be conical for easy water collection, and the drain port is arranged at the lower end of the air collecting chamber.

[0010] In some of the embodiments, a pressure transmitter for monitoring the internal pressure of the plenum chamber is disposed at the upper end of the plenum chamber.

[0011] In some of the embodiments, a gas supply port communicating with the interior of the gas collecting chamber is provided outside the gas collecting chamber.

[0012] In some embodiments, solenoid valves for controlling opening and closing are respectively provided at the air inlet, the first air outlet, the second air outlet and the air supply port.

[0013] In some of the embodiments, a refrigeration structure for liquefying water in the gas is disposed on the outer side of the gas collecting chamber.

[0014] In some embodiments, the refrigeration structure includes a semiconductor refrigeration sheet, which is arranged on the outer shell of the air collecting chamber. A cooling fan is arranged on the side of the semiconductor refrigeration sheet away from the air collecting chamber, and a heat sink is arranged between the cooling fan and the semiconductor refrigeration sheet.

[0015] According to the above content, the beneficial effects of this application are:

[0016] 1. The gas collection structure uses a vacuum pump instead of a motor and a cylinder piston to collect gas, making the overall structure more compact and compact with better sealing performance;

[0017] 2. Add a refrigeration structure on the outside of the gas collecting chamber to facilitate the liquefaction of moisture in the gas to be detected, greatly improving the detection accuracy;

[0018] 3. The upper end of the gas collecting chamber is set into a conical structure to facilitate gas collection;

[0019] 4. The lower end of the plenum chamber is set into a conical structure to facilitate the discharge of condensed water;

[0020] 5. The side of the gas collecting chamber is designed as a gas path gas collecting module, which greatly reduces the number of pipelines and facilitates installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0023] Figure 2 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0024] Figure 3 It is a side cross-sectional view of an embodiment of the present application.

[0025] Explanation of reference numerals: air collecting chamber 1; air inlet 1.1; first air outlet 1.2; second air outlet 1.3; drain outlet 1.4; air supply port 1.5; pressure transmitter 2; semiconductor cooling chip 3.1; cooling fan 3.2; heat sink 3.3; solenoid valve 4. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the contents disclosed in the present application, some changes such as design, manufacturing or production based on the technical contents disclosed in the present application are only conventional technical means, and should not be understood as insufficient contents disclosed in the present application.

[0027] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0028] Unless otherwise defined, the technical terms or scientific terms involved in this application should be understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the" and the like involved in this application do not indicate a quantitative limitation, and may represent the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in this application refers to greater than or equal to two. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships, for example, "A and / or B" can represent: A exists alone, A and B exist at the same time, and B exists alone. The terms "first", "second", "third" and the like involved in the present application are merely used to distinguish similar objects and do not represent a specific ordering of the objects.

[0029] Implementation example Figures 1 to 3 As shown, a gas collecting structure of a degassing device comprises a gas collecting chamber 1, the outside of the gas collecting chamber 1 is provided with an air inlet 1.1, a first air outlet 1.2, a second air outlet 1.3, a drain port 1.4 and an air supply port 1.5 which are connected with the inside of the gas collecting chamber 1.

[0030] Among them, the air inlet 1.1 and the first air outlet 1.2 connect the gas collecting chamber 1 with the degassing device, and the air inlet 1.1 or the gas collecting chamber 1 is also connected to a vacuum pump (not shown in the figure) that can draw gas from the degassing device into the gas collecting chamber 1. After the gas to be tested is drawn into the gas collecting chamber 1 by the vacuum pump, it can be guided back to the degassing device through the first air outlet 1.2 for circulation. After multiple cycles and treatment, the gas can flow out through the second air outlet 1.3 and enter the next link. The gas can be replenished into the gas collecting chamber 1 through the gas replenishment port 1.5.

[0031] Furthermore, the upper end of the gas collecting chamber 1 is designed to be conical for collecting gas, and the first gas outlet 1.2 is arranged at the upper end of the gas collecting chamber 1 to cooperate with the conical structure to discharge gas. The lower end of the gas collecting chamber 1 is designed to be conical for collecting water, and the drain port 1.4 is arranged at the lower end of the gas collecting chamber 1 to cooperate with the conical structure to drain water.

[0032] Furthermore, a pressure transmitter 2 for monitoring the internal pressure of the gas collecting chamber 1 is provided at the upper end of the gas collecting chamber 1 . The pressure transmitter 2 can be used to determine whether there is leakage in the gas collecting chamber 1 .

[0033] Furthermore, refrigeration structures for liquefying the water in the gas inside the gas collecting chamber 1 are respectively arranged on opposite sides outside the gas collecting chamber 1, which can greatly improve the gas detection accuracy. The refrigeration structure includes a semiconductor refrigeration sheet 3.1, which is arranged on the outer shell of the gas collecting chamber 1, a heat dissipation fan 3.2 is arranged on the side of the semiconductor refrigeration sheet 3.1 away from the gas collecting chamber 1, and a heat dissipation sheet 3.3 is arranged between the heat dissipation fan 3.2 and the semiconductor refrigeration sheet 3.1. The water in the gas to be detected entering the gas collecting chamber 1 is condensed by the refrigeration structure and gathered at the conical structure at the lower end of the gas collecting chamber 1, and discharged through the drain port 1.4.

[0034] Furthermore, the air inlet 1.1, the first air outlet 1.2, the second air outlet 1.3 and the air supply port 1.5 are respectively provided with controllable opening and closing solenoid valves 4, and the air paths are integrated together through the solenoid valves 4, which effectively reduces the volume of the pipelines and facilitates installation and maintenance.

[0035] Specifically, the solenoid valves 4 arranged at the air inlet 1.1, the air supply port 1.5 and the second air outlet 1.3 are straight-through solenoid valves, and the solenoid valve 4 arranged at the first air outlet 1.2 is a miniature three-way solenoid valve.

[0036] Working principle: The gas released from the degassing device is pumped into the gas collecting chamber 1 from the air inlet 1.1 by a vacuum pump. The gas to be tested is cooled by the refrigeration structures on both sides of the gas collecting chamber 1. The water in the gas is liquefied and sinks to the bottom of the gas collecting chamber 1. The gas to be tested also needs to continue to enter the degassing device through the first air outlet 1.2 for circulating bubbling. After repeated cycles, the gas in the gas collecting chamber 1 enters the next link through the second air outlet 1.3, and then the drain port 1.4 is opened to drain the water in the gas collecting chamber 1.

[0037] Those skilled in the art should understand that the technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A gas collecting structure of a degassing device, comprising a gas collecting chamber, characterized in that: An air inlet, a first air outlet and a second air outlet connected to the interior of the air collecting chamber are arranged outside the air collecting chamber; the air inlet and the first air outlet connect the air collecting chamber with the degassing device, the air inlet or the air collecting chamber is also connected to a vacuum pump that can draw gas from the degassing device into the air collecting chamber, the first air outlet can guide the gas in the air collecting chamber back to the degassing device for circulation, and the circulated gas can flow out through the second air outlet.

2. The gas collecting structure of a degassing device according to claim 1, characterized in that: The upper end of the interior of the gas collecting chamber is in a conical design for facilitating gas collection.

3. The gas collecting structure of a degassing device according to claim 2, characterized in that: The first air outlet is arranged at the upper end of the air collecting chamber.

4. The gas collecting structure of a degassing device according to claim 1, characterized in that: The air collecting chamber is provided with a drain outlet communicated with the interior thereof.

5. The gas collecting structure of a degassing device according to claim 4, characterized in that: The lower end of the interior of the air collecting chamber is in a conical design for facilitating water collection, and the drain port is arranged at the lower end of the air collecting chamber.

6. The gas collecting structure of a degassing device according to claim 1, characterized in that: A pressure transmitter for monitoring the internal pressure of the gas collecting chamber is arranged at the upper end of the gas collecting chamber.

7. The gas collecting structure of a degassing device according to claim 1, characterized in that: The air collecting chamber is provided with an air supply port communicated with the interior thereof.

8. The gas collecting structure of a degassing device according to claim 7, characterized in that: The air inlet, the first air outlet, the second air outlet and the air supply port are respectively provided with electromagnetic valves for controlling opening and closing.

9. A gas collecting structure for a degassing device according to any one of claims 1 to 8, characterized in that: The outer side of the gas collecting chamber is provided with a refrigeration structure for liquefying water in the gas.

10. The gas collecting structure of a degassing device according to claim 9, characterized in that: The refrigeration structure includes a semiconductor refrigeration sheet, which is arranged on the outer shell of the gas collecting chamber. A heat dissipation fan is arranged on the side of the semiconductor refrigeration sheet away from the gas collecting chamber, and a heat sink is arranged between the heat dissipation fan and the semiconductor refrigeration sheet.

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