Drainage device

Abstract

The present invention discloses a drainage device for draining water from a relatively low-pressure environment to a relatively high-pressure environment, comprising: a first water tank is connected to the relatively low-pressure environment through a first sealed pipeline and a second sealed pipeline; the second water tank is connected to the second sealed pipeline through a third sealed pipeline, connected to the first water tank through a fourth sealed pipeline, and connected to the relatively high-pressure environment through a fifth sealed pipeline and a sixth sealed pipeline; a first solenoid valve is arranged on the third sealed pipeline, a second solenoid valve is arranged on the fourth sealed pipeline, a third solenoid valve is arranged on the fifth sealed pipeline, and a fourth solenoid valve is arranged on the sixth sealed pipeline; a first liquid level gauge is installed in the first water tank; a second liquid level gauge and a third liquid level gauge are installed in the second water tank; the present invention can realize automatic and uninterrupted drainage from a relatively low-pressure environment to a relatively high-pressure environment.

Description

Technical Field

[0001] The present invention relates to the field of industrial manufacturing, and in particular to a drainage device for draining water from a relatively low-pressure environment to a relatively high-pressure environment. Background Art

[0002] At present, in order to improve the adaptability and reliability of products (including but not limited to automotive equipment), products must be tested for operation under various environmental conditions before leaving the factory, such as extremely cold areas, extremely hot areas, high altitude areas, etc. In order to save product R&D testing time and reduce testing costs, many environmental condition simulation laboratories have been established, such as laboratories for high-altitude environment simulation. When testing air-conditioning products, there is a need to discharge wastewater in high-altitude environmental simulation laboratories. Generally, in order to verify the reliability of the product, the continuous testing time is relatively long, and wastewater must be discharged continuously at this time. Moreover, temperature simulation is usually performed in high-altitude environmental simulation laboratories, and the air-conditioning condensate water in the high-altitude environmental simulation laboratories also needs to be discharged continuously.

[0003] The high-altitude environment simulation test room is used to truly simulate the high-altitude environment. Its internal air pressure must be lower than the external natural environment pressure (usually atmospheric pressure). Due to the existence of the pressure difference, the wastewater in the high-altitude environment simulation test room cannot be discharged automatically by gravity. In order to ensure that the internal environment of the high-altitude environment simulation test room is not affected by drainage (changing pressure), the wastewater in the high-altitude environment simulation test room cannot be simply connected and discharged directly into the external natural environment. Therefore, there is an urgent need for a drainage device that can automatically and uninterruptedly have no impact on the indoor environment of the high-altitude environment simulation test room. Summary of the invention

[0004] A series of simplified concepts are introduced in the Summary of the Invention, which are all simplifications of the prior art in the field, and will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention of the present invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0005] The technical problem to be solved by the present invention is to provide a drainage device which can automatically and uninterruptedly drain water from a relatively low-pressure environment to a relatively high-pressure environment.

[0006] In order to solve the above technical problems, the present invention provides a drainage device for draining water from a relatively low-pressure environment to a relatively high-pressure environment, comprising:

[0007] The first water tank 1 is a sealed box disposed in a relatively high-pressure environment, and is connected to the relatively low-pressure environment through a first sealed pipeline 2 and a second sealed pipeline 3. The first sealed pipeline 2 is used for drainage, and the second sealed pipeline 3 is used for pressure equalization;

[0008] Optionally, the drainage height of the relatively low-pressure environment is higher than the height of the first water tank 1, the height of the first water tank 1 is higher than the height of the second water tank 4, the first sealed pipeline 2 is sealed and connected to the drainage port of the relatively low-pressure environment, and the second sealed pipeline 3 is sealed and connected to the pressure equalization port in the relatively low-pressure environment;

[0009] The second water tank 4 is a sealed box disposed in a relatively high-pressure environment, which is connected to the second sealed pipeline 3 through the third sealed pipeline 5, which is connected to the first water tank 1 through the fourth sealed pipeline 6, and which is connected to the relatively high-pressure environment through the fifth sealed pipeline 7 and the sixth sealed pipeline 8. The fifth sealed pipeline 7 is used for pressure equalization, and the sixth sealed pipeline 8 is used for drainage;

[0010] a first solenoid valve 9, which is arranged on the third sealed pipeline 5; a second solenoid valve 10, which is arranged on the fourth sealed pipeline 6; a third solenoid valve 11, which is arranged on the fifth sealed pipeline 7; and a fourth solenoid valve 12, which is arranged on the sixth sealed pipeline 8;

[0011] A first liquid level meter 13, which is installed in the first water tank 1 and is used to trigger a high water level alarm in the first water tank 1;

[0012] Optionally, when a high water level alarm is sounded in the first water tank 1, the drainage equipment is stopped, and at this time, the solenoid valve 9 and the solenoid valve 10 are opened, and the solenoid valve 11 and the solenoid valve 12 are closed to drain water to the second water tank.

[0013] The second liquid level gauge 14 and the third liquid level gauge 15 are installed in the second water tank 4. The second liquid level gauge 14 triggers the first solenoid valve 9 and the second solenoid valve 10 to close, and the third liquid level gauge 15 triggers the second water tank 4 to drain and close;

[0014] Optionally, the drainage device can be further improved to include: a first steam trap 16 installed on the sixth sealed pipeline 8, which is used to repair and drain the water when the sixth sealed pipeline 8 is blocked. Or, in a solution with a drainage pump 17, the drainage pump 17 is repaired and drained when it is blocked or fails.

[0015] Optionally, the drainage device is further improved to include: a controller, which is used to receive liquid level trigger signals from the second liquid level gauge and the third liquid level gauge 14 and 15, and control the switching of the first to fourth solenoid valves 9, 10, 11 and 12 according to the liquid level trigger signal output instructions.

[0016] Optionally, when starting work, the controller instructs the first solenoid valve 9 and the second solenoid valve 10 to open, and the third solenoid valve 11 and the fourth solenoid valve 12 to close, and the relatively low-pressure environmental wastewater enters the first water tank 1 and the second water tank 4;

[0017] When the second liquid level meter 14 is triggered, the controller instructs the first solenoid valve 9 and the second solenoid valve 10 to close, and the third solenoid valve 11 and the fourth solenoid valve 12 to open, and the second water tank 4 is drained;

[0018] When the third liquid level meter 15 is triggered, the third solenoid valve 11 and the fourth solenoid valve 12 are closed to stop the second water tank 4 from draining water.

[0019] Optionally, the drainage device is further improved to include: a drainage pump 17, which is installed on the sixth sealed pipeline 8. The purpose of adding the drainage pump 17 is to pump out the water in the second water tank 4 through the drainage pump 17 when the second water tank 4 is installed at a height higher than the first water tank 1 and the water cannot be discharged by gravity.

[0020] Optionally, the drainage device can be further improved by a controller which is used to receive liquid level signals from the first to third liquid level gauges 13, 14 and 15, and output instructions to control the switching of the first to fourth solenoid valves 9, 10, 11 and 12 and the start and stop of the drainage pump 17.

[0021] Optionally, the drainage device is further improved, the controller instructs the first solenoid valve 9 and the second solenoid valve 10 to open, the third solenoid valve 11 and the fourth solenoid valve 12 to close, and the relatively low-pressure environmental wastewater enters the first water tank 1 and the second water tank 4;

[0022] When the second liquid level meter 14 is triggered, the controller instructs the first solenoid valve 9 and the second solenoid valve 10 to close, the third solenoid valve 11 and the fourth solenoid valve 12 to open, the drainage pump 17 is started, and the second water tank 4 is drained;

[0023] When the third liquid level meter 15 is triggered, the controller instructs the drainage pump 17 to turn off, and stops the second water tank 4 from draining water.

[0024] Here, it should be emphasized that the controller of the present invention can be implemented by existing hardware devices or circuit structures, such as contact relays, multiplexers, gating circuits and other existing hardware devices or circuit structures, which change the solenoid valve switch and the start and stop of the drainage pump by receiving the trigger signal of the liquid level meter.

[0025] The working principle of the invention is as follows:

[0026] First, the first solenoid valve 9 and the second solenoid valve 10 are opened, and the third solenoid valve 11 and the fourth solenoid valve 12 are closed. The first water tank 1 and the second water tank 4 are used to form a relatively low pressure through the pressure equalization port of the relatively low pressure environment. As long as there is a slope of about 5 degrees, the wastewater can flow out automatically. Since there is no pressure difference at this time, there is no factor preventing the wastewater from flowing out. When the second liquid level meter 14 is triggered, it means that the wastewater in the second water tank 4 has reached the set water level, and the first solenoid valve 9 and the second solenoid valve 10 are instructed to close, and the third solenoid valve 11 and the fourth solenoid valve 12 are opened. At this time, the connection between the first water tank 1 and the second water tank 4 is cut off, and the first water tank 1 continues to maintain a relatively low pressure. The second water tank 4 is connected to a relatively high pressure environment because the third solenoid valve 11 is opened. After the pressure is equalized, the second water tank 4 is at a relatively high pressure. The fourth solenoid valve 11 is opened and the drainage pump 17 cannot be started by gravity drainage, and the second water tank 4 is drained. When the third liquid level gauge 15 is triggered, it means that the water level of the second water tank 4 is too low, and the fourth solenoid valve 12 and / or the drainage pump 17 are controlled to be closed to stop the second water tank 4 from draining. Correspondingly, when the connection between the first water tank 1 and the second water tank 4 is cut off, the wastewater in the relatively low-pressure environment (environmental simulation laboratory) continues to flow into the first water tank 1, while the second water tank 4 is draining; when the drainage of the second water tank 4 is completed (the third liquid level gauge 15 is triggered), the first water tank 1 and the second water tank 4 are connected again, and this cycle is repeated to form automatic and uninterrupted drainage, and due to the action of the four solenoid valves, the first water tank 1 can always maintain an equal pressure state with the relatively low-pressure environment (environmental simulation laboratory), without any influence on the pressure of the low-pressure environment (environmental simulation laboratory). BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings of the present invention are intended to illustrate the general characteristics of the methods, structures and / or materials used in specific exemplary embodiments of the present invention, and to supplement the description in the specification. However, the drawings of the present invention are schematic diagrams not drawn to scale, and thus may not accurately reflect the precise structure or performance characteristics of any given embodiment, and the drawings of the present invention should not be interpreted as limiting or restricting the range of values ​​or properties covered by the exemplary embodiments of the present invention. The present invention is further described in detail below in conjunction with the drawings and specific embodiments:

[0028] Figure 1 It is a schematic diagram of the first embodiment of the present invention.

[0029] Figure 2 It is a schematic structural diagram of the third embodiment of the present invention.

[0030] Figure 3 It is a schematic structural diagram of the fourth embodiment of the present invention.

[0031] Description of Reference Numerals

[0032] First water tank 1

[0033] First sealing line 2

[0034] Second sealing pipeline 3

[0035] Second water tank 4

[0036] The third sealing pipeline 5

[0037] Fourth sealed pipeline 6

[0038] Fifth sealing pipeline 7

[0039] Sixth sealed pipeline 8

[0040] First solenoid valve 9

[0041] Second solenoid valve 10

[0042] The third solenoid valve 11

[0043] Fourth solenoid valve 12

[0044] First level gauge 13

[0045] Second level gauge 14

[0046] The third level gauge 15

[0047] First steam trap 16

[0048] Drain valve 17

[0049] Environmental Simulation Test Room A

[0050] Environmental simulation laboratory wastewater outlet B

[0051] Environmental simulation test chamber pressure equalization port C. DETAILED DESCRIPTION

[0052] The following describes the implementation methods of the present invention through specific specific embodiments, and those skilled in the art can fully understand other advantages and technical effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through different specific implementation methods, and the details in this specification can also be applied based on different viewpoints, and various modifications or changes can be made without deviating from the overall design concept of the invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other in the absence of conflict. The following exemplary embodiments of the present invention can be implemented in a variety of different forms and should not be interpreted as being limited to the specific embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the technical solutions of these exemplary specific embodiments to those skilled in the art.

[0053] It should be understood that when an element is referred to as "connected" or "coupled" to another element, the element may be directly connected or coupled to another element, or there may be an intermediate element. Differently, when an element is referred to as "directly connected" or "directly coupled" to another element, there is no intermediate element. In all the drawings, the same reference numerals always represent the same element. In addition, it should also be understood that, although the terms "first", "second", etc. can be used here to describe different elements, parameters, components, regions, layers and / or parts, these elements, parameters, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish an element, parameter, component, region, layer or part from another element, parameter, component, region, layer or part. Therefore, without departing from the teaching of exemplary embodiments of the present invention, the first element, parameter, component, region, layer or part discussed below may also be referred to as the second element, parameter, component, region, layer or part.

[0054] The first embodiment, as Figure 1 As shown, the drainage device provided by the present invention is used for draining water from a relatively low-pressure environment to a relatively high-pressure environment, such as an environmental simulation test chamber simulating a plateau environment and discharging wastewater to the external environment (atmospheric pressure), comprising:

[0055] The first water tank 1 is a sealed box disposed in a relatively high-pressure environment, and is connected to the relatively low-pressure environment through a first sealed pipeline 2 and a second sealed pipeline 3. The first sealed pipeline 2 is used for drainage, and the second sealed pipeline 3 is used for pressure equalization;

[0056] The height of the wastewater outlet B of the environmental simulation test room A is higher than the height of the first water tank 1, and the height of the first water tank 1 is higher than the height of the second water tank 4. The first sealed pipeline 2 is sealed and connected to the high-pressure environmental drain outlet, and the second sealed pipeline 3 is sealed and connected to the pressure equalizing port C in the environmental simulation test room A;

[0057] The second water tank 4 is a sealed box disposed in a relatively high-pressure environment, which is connected to the second sealed pipeline 3 through the third sealed pipeline 5, which is connected to the first water tank 1 through the fourth sealed pipeline 6, and which is connected to the relatively high-pressure environment through the fifth sealed pipeline 7 and the sixth sealed pipeline 8. The fifth sealed pipeline 7 is used for pressure equalization, and the sixth sealed pipeline 8 is used for drainage;

[0058] a first solenoid valve 9, which is arranged on the third sealed pipeline 5; a second solenoid valve 10, which is arranged on the fourth sealed pipeline 6; a third solenoid valve 11, which is arranged on the fifth sealed pipeline 7; and a fourth solenoid valve 12, which is arranged on the sixth sealed pipeline 8;

[0059] A first liquid level meter 13, which is installed in the first water tank 1 and is used to trigger a high water level alarm in the first water tank 1;

[0060] Optionally, when a high water level alarm is triggered in the first water tank 1 , the drainage equipment is manually stopped, such as by opening all solenoid valves, and the drainage of the first water tank 1 is stopped due to the pressure difference.

[0061] The second liquid level gauge 14 and the third liquid level gauge 15 are installed in the second water tank 4 . The second liquid level gauge 14 triggers the first solenoid valve 9 and the second solenoid valve 10 to close, and the third liquid level gauge 15 triggers the second water tank 4 to drain and close.

[0062] The second embodiment, as Figure 2 As shown, the drainage device provided by the present invention is used for draining water from a relatively low-pressure environment to a relatively high-pressure environment. The first drain valve 16 is added to the above-mentioned first embodiment (the same parts are not repeated here), which is installed on the sixth sealed pipeline 8 to connect the second water tank 4 with the relatively high-pressure environment. The drain valve is used for temporary drainage when the sixth sealed pipeline 8 is blocked.

[0063] The third embodiment, continue to refer to Figure 1 As shown, the drainage device provided by the present invention is used for draining water from a relatively low-pressure environment to a relatively high-pressure environment, such as an environmental simulation test chamber simulating a plateau environment and discharging wastewater to the external environment (atmospheric pressure), comprising:

[0064] The first water tank 1 is a sealed box disposed in a relatively high-pressure environment, and is connected to the relatively low-pressure environment through a first sealed pipeline 2 and a second sealed pipeline 3. The first sealed pipeline 2 is used for drainage, and the second sealed pipeline 3 is used for pressure equalization;

[0065] The height of the wastewater outlet B of the environmental simulation test room A is higher than the height of the first water tank 1, and the height of the first water tank 1 is higher than the height of the second water tank 4. The first sealed pipeline 2 is sealed and connected to the high-pressure environmental drain outlet, and the second sealed pipeline 3 is sealed and connected to the pressure equalizing port C in the environmental simulation test room A;

[0066] The second water tank 4 is a sealed box disposed in a relatively high-pressure environment, which is connected to the second sealed pipeline 3 through the third sealed pipeline 5, which is connected to the first water tank 1 through the fourth sealed pipeline 6, and which is connected to the relatively high-pressure environment through the fifth sealed pipeline 7 and the sixth sealed pipeline 8. The fifth sealed pipeline 7 is used for pressure equalization, and the sixth sealed pipeline 8 is used for drainage;

[0067] a first solenoid valve 9, which is arranged on the third sealed pipeline 5; a second solenoid valve 10, which is arranged on the fourth sealed pipeline 6; a third solenoid valve 11, which is arranged on the fifth sealed pipeline 7; and a fourth solenoid valve 12, which is arranged on the sixth sealed pipeline 8;

[0068] A first liquid level gauge 13 is installed in the first water tank 1, and a second liquid level gauge 14 and a third liquid level gauge 15 are installed in the second water tank 4;

[0069] The controller (not shown) is used to receive the liquid level trigger signals of the second liquid level gauge and the third liquid level gauge 14 and 15, and output instructions to control the switches of the first to fourth solenoid valves 9, 10, 11 and 12 according to the liquid level trigger signal.

[0070] When starting work, the controller instructs the first solenoid valve 9 and the second solenoid valve 10 to open, and the third solenoid valve 11 and the fourth solenoid valve 12 to close, and the relatively low-pressure environmental wastewater enters the first water tank 1 and the second water tank 4;

[0071] When the second liquid level meter 14 is triggered, the controller instructs the first solenoid valve 9 and the second solenoid valve 10 to close, and the third solenoid valve 11 and the fourth solenoid valve 12 to open, and the second water tank 4 is drained;

[0072] When the third liquid level meter 15 is triggered, the third solenoid valve 11 and the fourth solenoid valve 12 are closed to stop the second water tank 4 from draining water.

[0073] The fourth embodiment, as Figure 3 As shown, the drainage device provided by the present invention is used for draining water from a relatively low-pressure environment to a relatively high-pressure environment, such as an environmental simulation test chamber simulating a plateau environment and discharging wastewater to the external environment (atmospheric pressure), comprising:

[0074] The first water tank 1 is a sealed box disposed in a relatively high-pressure environment, and is connected to the relatively low-pressure environment through a first sealed pipeline 2 and a second sealed pipeline 3. The first sealed pipeline 2 is used for drainage, and the second sealed pipeline 3 is used for pressure equalization;

[0075] The height of the wastewater outlet B of the environmental simulation test room A is higher than the height of the first water tank 1, and the height of the first water tank 1 is higher than the height of the second water tank 4. The first sealed pipeline 2 is sealed and connected to the high-pressure environmental drain outlet, and the second sealed pipeline 3 is sealed and connected to the pressure equalizing port C in the environmental simulation test room A;

[0076] The second water tank 4 is a sealed box disposed in a relatively high-pressure environment, which is connected to the second sealed pipeline 3 through the third sealed pipeline 5, which is connected to the first water tank 1 through the fourth sealed pipeline 6, and which is connected to the relatively high-pressure environment through the fifth sealed pipeline 7 and the sixth sealed pipeline 8. The fifth sealed pipeline 7 is used for pressure equalization, and the sixth sealed pipeline 8 is used for drainage;

[0077] a first solenoid valve 9, which is arranged on the third sealed pipeline 5; a second solenoid valve 10, which is arranged on the fourth sealed pipeline 6; a third solenoid valve 11, which is arranged on the fifth sealed pipeline 7; and a fourth solenoid valve 12, which is arranged on the sixth sealed pipeline 8;

[0078] A first liquid level meter 13, which is installed in the first water tank 1 and is used to trigger a high water level alarm in the first water tank 1;

[0079] The second liquid level gauge 14 and the third liquid level gauge 15 are installed in the second water tank 4. The second liquid level gauge 14 triggers the first solenoid valve 9 and the second solenoid valve 10 to close, and the third liquid level gauge 15 triggers the second water tank 4 to drain and close;

[0080] A first steam trap 16, which is installed on the sixth sealed pipeline 8, connects the second water tank 4 with a relatively high-pressure environment, and is used for temporary drainage when the sixth sealed pipeline 8 is blocked;

[0081] The drainage pump 17 is installed on the sixth sealed pipeline 8. The purpose of adding the drainage pump 17 is to pump out the water in the second water tank 4 through the drainage pump 17 when the second water tank 4 is installed at a height higher than the first water tank 1 and the water in the second water tank 4 cannot be discharged by gravity.

[0082] The fifth embodiment, continue to refer to Figure 3 As shown, the drainage device provided by the present invention is used for draining water from a relatively low-pressure environment to a relatively high-pressure environment, such as an environmental simulation test chamber simulating a plateau environment and discharging wastewater to the external environment (atmospheric pressure), comprising:

[0083] The first water tank 1 is a sealed box disposed in a relatively high-pressure environment, and is connected to the relatively low-pressure environment through a first sealed pipeline 2 and a second sealed pipeline 3. The first sealed pipeline 2 is used for drainage, and the second sealed pipeline 3 is used for pressure equalization;

[0084] The height of the wastewater outlet B of the environmental simulation test room A is higher than the height of the first water tank 1, and the height of the first water tank 1 is higher than the height of the second water tank 4. The first sealed pipeline 2 is sealed and connected to the high-pressure environmental drain outlet, and the second sealed pipeline 3 is sealed and connected to the pressure equalizing port C in the environmental simulation test room A;

[0085] The second water tank 4 is a sealed box disposed in a relatively high-pressure environment, which is connected to the second sealed pipeline 3 through the third sealed pipeline 5, which is connected to the first water tank 1 through the fourth sealed pipeline 6, and which is connected to the relatively high-pressure environment through the fifth sealed pipeline 7 and the sixth sealed pipeline 8. The fifth sealed pipeline 7 is used for pressure equalization, and the sixth sealed pipeline 8 is used for drainage;

[0086] a first solenoid valve 9, which is arranged on the third sealed pipeline 5; a second solenoid valve 10, which is arranged on the fourth sealed pipeline 6; a third solenoid valve 11, which is arranged on the fifth sealed pipeline 7; and a fourth solenoid valve 12, which is arranged on the sixth sealed pipeline 8;

[0087] A first liquid level meter 13, which is installed in the first water tank 1 and is used to trigger a high water level alarm in the first water tank 1;

[0088] The second liquid level gauge 14 and the third liquid level gauge 15 are installed in the second water tank 4. The second liquid level gauge 14 triggers the first solenoid valve 9 and the second solenoid valve 10 to close, and the third liquid level gauge 15 triggers the second water tank 4 to drain and close;

[0089] A first steam trap 16, which is installed on the sixth sealed pipeline 8, connects the second water tank 4 with a relatively high-pressure environment, and is used for temporary drainage when the sixth sealed pipeline 8 is blocked;

[0090] The drainage pump 17 is installed on the sixth sealed pipeline 8. The purpose of adding the drainage pump 17 is to pump out the water in the second water tank 4 through the drainage pump 17 when the second water tank 4 is installed at a height higher than the first water tank 1 and the water in the second water tank 4 cannot be discharged by gravity.

[0091] The controller (not shown) is used to receive the liquid level signals of the first to third liquid level gauges 13, 14 and 15, and output instructions to control the switches of the first to fourth solenoid valves 9, 10, 11 and 12 and the start and stop of the drainage pump 17.

[0092] The controller instructs the first solenoid valve 9 and the second solenoid valve 10 to open, and the third solenoid valve 11 and the fourth solenoid valve 12 to close, so that the relatively low-pressure environmental wastewater enters the first water tank 1 and the second water tank 4;

[0093] When the second liquid level meter 14 is triggered, the controller instructs the first solenoid valve 9 and the second solenoid valve 10 to close, the third solenoid valve 11 and the fourth solenoid valve 12 to open, the drainage pump 17 is started, and the second water tank 4 is drained;

[0094] When the third liquid level meter 15 is triggered, the controller instructs the drainage pump 17 to turn off, and stops the second water tank 4 from draining water.

[0095] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. It will also be understood that, unless explicitly defined herein, terms such as those defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not interpreted in an ideal or overly formal sense.

[0096] The present invention has been described in detail above through specific implementation modes and embodiments, but these do not constitute limitations of the present invention. Without departing from the principles of the present invention, those skilled in the art may also make many variations and improvements, which should also be regarded as the protection scope of the present invention.

Claims

1. A drainage device for draining water from a relatively low-pressure environment to a relatively high-pressure environment, characterized in that: include: A first water tank (1), which is a sealed box body arranged in a relatively high-pressure environment, and is connected to the relatively low-pressure environment via a first sealed pipeline (2) and a second sealed pipeline (3), wherein the first sealed pipeline (2) is used for drainage, and the second sealed pipeline (3) is used for pressure equalization; The second water tank (4) is a sealed box body arranged in a relatively high-pressure environment, connected to the second sealed pipeline (3) via a third sealed pipeline (5), connected to the first water tank (1) via a fourth sealed pipeline (6), and connected to the relatively high-pressure environment via a fifth sealed pipeline (7) and a sixth sealed pipeline (8), the fifth sealed pipeline (7) being used for pressure equalization, and the sixth sealed pipeline (8) being used for drainage; A first solenoid valve (9) is arranged on the third sealed pipeline (5), a second solenoid valve (10) is arranged on the fourth sealed pipeline (6), a third solenoid valve (11) is arranged on the fifth sealed pipeline (7), and a fourth solenoid valve (12) is arranged on the sixth sealed pipeline (8); A first liquid level meter (13), which is installed in the first water tank (1) and is used to trigger a high water level alarm in the first water tank (1); The second liquid level meter (14) and the third liquid level meter (15) are installed in the second water tank (4); the second liquid level meter (14) triggers the first solenoid valve (9) and the second solenoid valve (10) to close, and the third liquid level meter (15) triggers the second water tank (4) to close the drain; A controller, which is used to receive liquid level trigger signals from the second liquid level meter (14) and the third liquid level meter (15), and output instructions to control the switching of the first solenoid valve (9), the second solenoid valve (10), the third solenoid valve (11) and the fourth solenoid valve (12) according to the liquid level trigger signals; The controller instructs the first solenoid valve (9) and the second solenoid valve (10) to open, and the third solenoid valve (11) and the fourth solenoid valve (12) to close, so that the relatively low-pressure environmental wastewater enters the first water tank (1) and the second water tank (4); When the second liquid level meter (14) is triggered, the controller instructs the first solenoid valve (9) and the second solenoid valve (10) to close, and the third solenoid valve (11) and the fourth solenoid valve (12) to open, and the second water tank (4) to drain water; When the third liquid level meter (15) is triggered, the third solenoid valve (11) and the fourth solenoid valve (12) are closed to stop the second water tank (4) from draining water; A first steam trap (16), which is installed on the sixth sealing pipeline (8) and is used for maintenance and drainage; The height of the relatively low-pressure environment drain port is higher than the height of the first water tank (1), the height of the first water tank (1) is higher than the height of the second water tank (4), the first sealed pipeline (2) is sealedly connected to the relatively low-pressure environment drain port, and the second sealed pipeline (3) is sealedly connected to the relatively low-pressure environment equalizing pressure port.

2. The drainage device according to claim 1, characterized in that: Also includes: A drainage pump (17) is installed on the sixth sealed pipeline (8).

3. The drainage device according to claim 2, characterized in that: A controller is used to receive liquid level signals from a first liquid level meter (13), a second liquid level meter (14), and a third liquid level meter (15), and output instructions to control the switching of the first solenoid valve (9), the second solenoid valve (10), the third solenoid valve (11), and the fourth solenoid valve (12), and the start and stop of a drainage pump (17).

4. The drainage device according to claim 3, characterized in that: The controller instructs the first solenoid valve (9) and the second solenoid valve (10) to open, and the third solenoid valve (11) and the fourth solenoid valve (12) to close, so that the relatively low-pressure environmental wastewater enters the first water tank (1) and the second water tank (4); When the second liquid level meter (14) is triggered, the controller instructs the first solenoid valve (9) and the second solenoid valve (10) to close, the third solenoid valve (11) and the fourth solenoid valve (12) to open, the drainage pump (17) to start, and the second water tank (4) to drain water; When the third liquid level meter (15) is triggered, the controller instructs the drainage pump (17) to turn off, thereby stopping the drainage of the second water tank (4).

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