Refrigeration dehydration liquid level alarm device

Abstract

The utility model discloses a refrigeration dehydration liquid level alarm device, which relates to the technical field of sample gas condensation and drying, and comprises a condenser body, and the condenser body comprises a condenser pipe, a measuring pipe, a drain valve, a floating ball and an infrared light emission receiver. According to the refrigeration and dehydration liquid level alarm device, the infrared light emission receiver is clamped to the liquid level early-warning position on the measuring pipe in a half-wrapping mode, when the liquid level is low, infrared light emitted by the emitting end on one side of the infrared light emission receiver penetrates through the measuring pipe and then is received by the receiving end on the other side, and when the liquid level rises to the liquid level early-warning position, the infrared light is emitted by the receiving end on the other side of the infrared light emission receiver. The floating ball shields the infrared light emission receiver to receive infrared light, then the alarm is started, meanwhile, the liquid adding pump is forcibly powered off, liquid is automatically discharged through the liquid discharging valve, pollution dead angles are effectively reduced through the non-contact alarm switch, the structure is simple, the floating ball is not prone to clamping stagnation, no vibration exists in the working process, noise is low, performance is stable and reliable, maintenance and replacement are convenient, and cost is low. The operation is simpler and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of sample gas condensation and drying, and particularly relates to a refrigeration dehydration liquid level alarm device. Background Art

[0002] During the total organic carbon (TOC) measurement, condensed water will be generated during the rapid oxidation process of the sample gas, thus interfering with the accurate measurement results. Most of the existing TOC analyzers on the market use the following three-step gas condensation and drying method: First, a condensation spiral tube is used to make the gas produced from the high-temperature combustion tube drop simply and quickly; Second, an electronic condensation dryer is used to cool the high-temperature gas again and separate out part of the moisture in it; Third, a mode dryer is used to quickly and efficiently remove the moisture in the sample gas with little impact on the sample gas components. The present invention mainly relates to the second step of sample gas condensation and drying, that is, the electronic condensation dryer. After the sample gas is electronically condensed and dried, the moisture will condense and saturate and precipitate when reaching the preset temperature and flow to the bottom of the condensation tube. If the liquid is not drained in time, the liquid will enter the next drying unit or even the detection unit along the sample gas pipeline. Therefore, the liquid level alarm in the condensation tube is particularly important.

[0003] The existing float liquid level switch has the following problems: (1). Its connecting rod mechanism has a complex structure and is prone to jamming during movement, resulting in the liquid level switch being insensitive and often failing to alarm or giving false alarms; (2). The sensing unit of the float liquid level switch needs to be directly placed into the measured liquid level cavity, which will contaminate the measured medium and is not convenient for installation.

[0004] Therefore, in view of this, in view of the existing structural deficiencies, research and improvement are carried out, and a refrigeration dehydration liquid level alarm device is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a refrigeration dehydration liquid level alarm device to solve the problems put forward in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A refrigeration dehydration liquid level alarm device, including a condenser body, the condenser body includes a condensation tube, a measuring tube, a drain valve, a float and an infrared light emitting and receiving device, the bottom of the condensation tube is communicated with the measuring tube, and a drain valve is arranged at the bottom of the measuring tube, a float is arranged inside the measuring tube, and an infrared light emitting and receiving device with a "U" - shaped metal structure is clamped outside the measuring tube.

[0007] Further, the condensation tube is in a "Y" - shaped structure, and the sample gas enters one side of the "Y" - shaped structure of the condensation tube from top to bottom and then flows out from the other side of the "Y" - shaped structure of the condensation tube from bottom to top.

[0008] Further, the infrared light emitting and receiving device is semi - enclosed at the liquid level warning position on the measuring tube, and the infrared light emitted from the emitting end on one side of the infrared light emitting and receiving device passes through the measuring tube and is received by the receiving end on the other side or is blocked by the floating ball that has risen to the liquid level warning position.

[0009] Further, the condenser tube is clamped between the upper and lower heat - conducting aluminum blocks, and the heat - conducting aluminum blocks are fixed to the inner bottom end of the box body.

[0010] Further, a sealing plate is fixed by screws at the opening of the inner cavity of the box body, and an embedding groove is formed in the middle of the sealing plate.

[0011] Further, a semiconductor refrigeration sheet is arranged inside the embedding groove. The cold surface of the semiconductor refrigeration sheet faces the inner side, and the hot surface of the semiconductor refrigeration sheet faces the outer side. Moreover, a radiator is arranged on the hot surface of the semiconductor refrigeration sheet.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. When the utility model is in use, the sample gas enters from top to bottom into one side of the "Y" - shaped structure of the condenser tube and then flows out from the other side of the "Y" - shaped structure of the condenser tube from bottom to top. The advantage of the double - tube structure design is that the heat exchange area with the cold surface of the semiconductor refrigeration sheet is increased, and the heat exchange effect is good. When in use, the moisture in the sample gas in the condenser tube is saturated and precipitated. The moisture accumulates along the condenser tube at the bottom of the measuring tube. As the liquid gradually increases, it lifts the metal floating ball. The floating ball is of a hollow structure. In this application, the infrared light emitting and receiving device is semi - enclosed and clamped at the liquid level warning position on the measuring tube. When the liquid level is low, the infrared light emitted from the emitting end on one side of the infrared light emitting and receiving device passes through the measuring tube and is received by the receiving end on the other side. When the liquid level rises to the liquid level warning position, the floating ball blocks the infrared light received by the infrared light emitting and receiving device. Then the alarm is activated. At the same time, the liquid adding pump is forced to cut off the power and the liquid discharge valve automatically discharges the liquid. Through the non - contact alarm switch, the pollution dead angle is effectively reduced, and the structure is simple. The floating ball is not easily stuck. It not only makes the operation vibration - free, with low noise and stable and reliable performance, but also is convenient for maintenance and replacement, and the operation is more simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic top - view structure diagram of the whole device of the utility model;

[0015] Figure 2 It is a schematic bottom - view structure diagram of the whole device of the utility model;

[0016] Figure 3 It is an exploded structure diagram of the whole device of the utility model.

[0017] In the figure: 1. Condenser body; 101. Condensing pipe; 102. Measuring pipe; 103. Drain valve; 104. Floating ball; 105. Infrared light emitting and receiving device; 2. Heat-conducting aluminum block; 3. Box body; 4. Sealing plate; 5. Embedded groove; 6. Semiconductor refrigeration sheet; 7. Radiator. Specific implementation mode

[0018] The following further describes in detail the implementation mode of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0019] As Figure 3 shown, a refrigeration dehydration liquid level alarm device includes a condenser body 1. The condenser body 1 includes a condensing pipe 101, a measuring pipe 102, a drain valve 103, a floating ball 104 and an infrared light emitting and receiving device 105. The condensing pipe 101 has a "Y" - shaped structure, and the sample gas enters one side of the "Y" - shaped structure of the condensing pipe 101 from top to bottom and then flows out from the other side of the "Y" - shaped structure of the condensing pipe 101 from bottom to top. The bottom of the condensing pipe 101 is connected to a measuring pipe 102, and a drain valve 103 is arranged at the bottom of the measuring pipe 102. A floating ball 104 is arranged inside the measuring pipe 102, and an infrared light emitting and receiving device 105 with a "U" - shaped metal structure is clamped outside the measuring pipe 102. The infrared light emitting and receiving device 105 is half - wrapped around the liquid level warning position on the measuring pipe 102, and the infrared light emitted from one side emitting end of the infrared light emitting and receiving device 105 passes through the measuring pipe 102 and is received by the receiving end on the other side or is blocked by the floating ball 104 rising to the liquid level warning position.

[0020] The specific operation is as follows: When in use, the moisture in the sample gas in the condensing pipe 101 is saturated and precipitated, and the moisture accumulates at the bottom of the measuring pipe 102 along the condensing pipe 101. The liquid level of the water gradually rises and lifts the metal floating ball 104. The floating ball 104 is a hollow structure. In this application, an infrared light emitting and receiving device 105 is half - wrapped and clamped at the liquid level warning position on the measuring pipe 102. When the liquid level is low, the infrared light emitted from one side emitting end of the infrared light emitting and receiving device 105 passes through the measuring pipe 102 and is received by the receiving end on the other side. When the liquid level rises to the liquid level warning position, the floating ball 104 blocks the infrared light received by the infrared light emitting and receiving device 105. Then the alarm is activated, and at the same time, the liquid adding pump is forced to cut off the power and the drain valve 103 automatically drains the liquid. Through the non - contact alarm switch, the pollution dead angle is effectively reduced.

[0021] As Figures 1 to 2As shown, the condenser tube 101 is clamped between the heat-conducting aluminum blocks 2 at the upper and lower ends, and the heat-conducting aluminum blocks 2 are fixed to the inner bottom end of the box body 3. A sealing plate 4 is fixed by screws at the opening of the inner cavity of the box body 3, and an embedding groove 5 is provided in the middle of the sealing plate 4. A semiconductor refrigeration sheet 6 is arranged inside the embedding groove 5. The cold surface of the semiconductor refrigeration sheet 6 is close to the inner surface, and the hot surface of the semiconductor refrigeration sheet 6 is close to the outer surface. Moreover, a radiator 7 is arranged on the hot surface of the semiconductor refrigeration sheet 6;

[0022] The specific operation is as follows: The sample gas enters one side of the "Y"-shaped structure of the condenser tube 101 from top to bottom and then flows out of the other side of the "Y"-shaped structure of the condenser tube 101 from bottom to top. The advantage of the double-tube structure design is that the heat exchange area with the cold surface of the semiconductor refrigeration sheet 6 is increased, and the heat exchange effect is good.

[0023] Working principle: When using this refrigeration and dehydration liquid level alarm device, the sample gas enters one side of the "Y"-shaped structure of the condenser tube 101 from top to bottom and then flows out of the other side of the "Y"-shaped structure of the condenser tube 101 from bottom to top. The advantage of the double-tube structure design is that the heat exchange area with the cold surface of the semiconductor refrigeration sheet 6 is increased, and the heat exchange effect is good. When in use, the moisture in the sample gas in the condenser tube 101 is saturated and precipitated, and the moisture accumulates along the condenser tube 101 at the bottom of the measuring tube 102. The liquid gradually increases and lifts the metal float 104. The float 104 is of a hollow structure. In this application, an infrared light emission and receiver 105 is semi-encapsulated and clamped at the liquid level warning position on the measuring tube 102. When the liquid level is low, the infrared light emitted from the emission end on one side of the infrared light emission and receiver 105 passes through the measuring tube 102 and is received by the receiving end on the other side. When the liquid level rises to the liquid level warning position, the float 104 blocks the infrared light received by the infrared light emission and receiver 105, and then the alarm is activated. At the same time, the liquid addition pump is forced to cut off the power and the liquid discharge valve 103 automatically discharges the liquid. Through the non-contact alarm switch, the pollution dead angle is effectively reduced, and the structure is simple. The float 104 is not easily stuck. It not only makes the operation vibration-free, with low noise and stable and reliable performance, but also is convenient for maintenance and replacement, and the operation is more convenient.

[0024] The embodiments of the present invention are given for the purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. A refrigeration dehydration liquid level alarm device, comprising a condenser body (1), characterized in that: The condenser body (1) comprises a condenser tube (101), a measuring tube (102), a drain valve (103), a float (104) and an infrared light transmitting and receiving device (105); the bottom of the condenser tube (101) is connected to the measuring tube (102), and the bottom of the measuring tube (102) is provided with a drain valve (103); the inside of the measuring tube (102) is provided with a float (104), and the outside of the measuring tube (102) is clamped with an infrared light transmitting and receiving device (105) of a "U"-shaped metal structure.

2. A refrigeration dehydration liquid level alarm device according to claim 1, characterized in that: The condenser (101) is in a "Y"-shaped structure, and the sample gas enters one side of the "Y"-shaped structure of the condenser (101) from top to bottom and then flows out of the other side of the "Y"-shaped structure of the condenser (101) from bottom to top.

3. A refrigeration dehydration liquid level alarm device according to claim 1, characterized in that: The infrared light transmitting and receiving device (105) is half-wrapped around the liquid level warning position on the measuring tube (102), and infrared light emitted from a transmitting end on one side of the infrared light transmitting and receiving device (105) passes through the measuring tube (102) and is then received by a receiving end on the other side or blocked by a floating ball (104) that rises to the liquid level warning position.

4. A refrigeration dehydration liquid level alarm device according to claim 1, characterized in that: The condenser tube (101) is clamped between the heat-conducting aluminum blocks (2) at the upper and lower ends, and the heat-conducting aluminum blocks (2) are fixed to the inner bottom end of the box body (3).

5. A refrigeration dehydration liquid level alarm device according to claim 4, characterized in that: A sealing plate (4) is screwed to the inner cavity opening of the box body (3), and an embedding groove (5) is provided in the middle of the sealing plate (4).

6. A refrigeration dehydration liquid level alarm device according to claim 5, characterized in that: A semiconductor cooling sheet (6) is arranged inside the embedding groove (5), and the surface of the semiconductor cooling sheet (6) close to the inside is a cold surface, and the surface of the semiconductor cooling sheet (6) close to the outside is a hot surface, and a heat sink (7) is added to the hot surface of the semiconductor cooling sheet (6).

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