Pipeline emptying device for emptying and freezing prevention of pipeline stopped in winter and pipeline
By designing a pipeline exhaust device integrating solenoid flowmeter, temperature sensor, drain pipe and electric drain valve, the safety accident caused by the frozen water storage in winter is solved, and automated drain control is realized, which improves the drain efficiency and applicability.
Patent Information
- Application Number
- CN202421307021.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-07
AI Technical Summary
In winter low temperature climates, the shutdown pipeline is prone to freezing and freezing due to the failure to emptiate water in time, resulting in safety accidents. The prior art emptying device has a pure mechanical structure, which is troublesome to install, has poor applicability, and is prone to freezing and breaking in cold conditions, affecting the emptying efficiency.
A pipeline drainage device including a U-shaped pipe, an electromagnetic flowmeter, a temperature sensor, an air drain pipe, an electric air drain valve and a contactless pipe liquid level sensor is designed. Through the collaborative work of these sensors and valves, automated drain control is achieved to ensure effective drainage of water in pipelines under low temperature conditions.
The device can effectively and quickly drain the water in the shutdown pipeline, reduce the risk of safety accidents caused by freezing and freezing cracking, improve the emptiment efficiency, and is suitable for different types of pipelines, with low installation conditions.
Smart Images
Figure CN222559810U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of pipeline emptying, and in particular relates to a pipeline emptying device and a pipeline for emptying and anti-freezing pipelines when the pipelines are shut down in winter. Background Art
[0002] The information disclosed in the background technology of the present invention is only intended to increase the understanding of the overall background of the present invention, and shall not necessarily be regarded as an admission or suggestion in any form that the information constitutes the prior art already known to those skilled in the art.
[0003] As the arteries of industrial production, pipelines play a key role in connecting various units. In northern China and some southern regions, the temperature drops after winter and remains below zero for a long time. The low temperature climate causes the pipelines in the station area to freeze due to the failure to drain the water in time, which leads to the pipelines being blocked by water and even safety accidents such as freezing and cracking due to volume expansion.
[0004] According to the inventor's understanding, existing devices for emptying out-of-service pipes often use a drain valve. For example, patent CN220602132U provides a device for quickly draining cooling water from a blast furnace. The device is fixedly connected to a drain pipe body at the elbow of the meandering pipe, and a connecting rod is slidably connected to the inner wall of the drain pipe body. This can effectively and quickly drain the water in the meandering pipe and reduce the content of retained water. However, this device is a purely mechanical structure, which is troublesome to install and has poor applicability for emptying different types of pipes. When the air is cold, the water film attached to the device freezes, which can easily cause the components to be frozen and affect the emptying efficiency. Utility Model Content
[0005] The utility model aims to overcome the above problems existing in the prior art and provides a pipeline emptying device and a pipeline for emptying and anti-freezing the pipeline when it is shut down in winter.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipe emptying device for emptying and anti-freezing pipes during winter shutdown, comprising: a U-shaped pipe, a first connecting pipe, an electromagnetic flowmeter, a temperature sensor, a drain pipe, an electric drain valve and a non-contact pipe liquid level sensor.
[0007] The U-shaped pipe includes a horizontal pipe and a vertical pipe, and the two ends of the horizontal pipe are respectively connected to the first vertical pipe and the second vertical pipe; the first vertical pipe is fixedly connected to an electromagnetic flowmeter for measuring the flow rate and flow of the liquid in the pipe; the pipe surface of the horizontal pipe is fixedly connected to a temperature sensor for constantly feeding back changes in ambient temperature; the horizontal pipe is also provided with a drain pipe structure, which includes a first drain pipe and a second drain pipe, the pipes are connected, and the residual liquid is discharged from the pipe mouth of the first drain pipe; the electric drain valve is located below the pipe outlet connecting the first drain pipe and the second drain pipe; the non-contact pipe liquid level sensor is located on the pipe surface of the second drain pipe, and is used to detect whether there is liquid in the pipe where the sensor is located.
[0008] As a further technical solution, the second vertical pipe is connected to the first connecting pipe, and the pipe height of the water inlet of the first vertical pipe is higher than the pipe height of the first connecting pipe.
[0009] As a further technical solution, both the first drain pipe and the second drain pipe are connected to the U-shaped pipe.
[0010] As a further technical solution, the first drain pipe is a straight pipe; the second drain pipe is a right-angle pipe, and the pipe outlets are interconnected.
[0011] As a further technical solution, the first vertical pipeline includes a first pipe section and a second pipe section, the pipe sections are integrated with each other, and the electromagnetic flowmeter is installed at the junction of the two pipe sections.
[0012] As a further technical solution, the length of the first pipe section is five times the pipe diameter, and the length of the second pipe section is three times the pipe diameter.
[0013] As a further technical solution, the electromagnetic flowmeter, temperature sensor, electric drain valve and non-contact pipeline liquid level sensor are connected to the terminal device through existing wired communication methods. The terminal device can use an existing computer, can store and display the detected data, and can compare the detected data with the standard data to realize automatic control of the device; wherein, the standard data can be set in advance.
[0014] In addition, the utility model also provides a pipeline, including the pipeline emptying device.
[0015] Beneficial effects of one or more of the above technical solutions:
[0016] (1) The utility model can effectively and quickly drain the water in the stopped pipeline by installing a U-shaped pipe, a first connecting pipe, an electromagnetic flowmeter, a temperature sensor, a drain pipe, an electric drain valve and a non-contact pipeline liquid level sensor, ensuring that it can meet the emptying requirements before the water freezes.
[0017] (2) The utility model uses an electromagnetic flowmeter to detect the state of the liquid in the pipeline to ensure that it is in a shutdown state; a temperature sensor is used to monitor local climate conditions to facilitate timely emptying of the water in the U-shaped pipeline and reduce the content of retained water; a non-contact pipeline liquid level sensor is used to detect the content of the liquid in the horizontal pipeline to accurately control the emptying of residual water. The specific location settings of the electromagnetic flowmeter, temperature sensor and non-contact pipeline liquid level sensor greatly reduce the freezing and cracking of pipelines caused by the failure to empty the water in winter, thereby avoiding the loss of property and personal safety.
[0018] (3) The device of the utility model has low requirements for on-site installation conditions and is highly practical. It can be applied to related industries including but not limited to municipal water supply, municipal sewage, chemical wastewater, chemical liquid, etc. where pipelines are shut down in winter. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding 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 a limitation on the present application.
[0020] Figure 1 It is a schematic diagram of the structure of the pipeline emptying device of the utility model.
[0021] In the figure, 1, U-shaped pipe; 2, electromagnetic flowmeter; 3, non-contact liquid level sensor; 4, temperature sensor; 5, electric drain valve; 6, first drain pipe; 7, second drain pipe; 8, horizontal pipe; 9, first vertical pipe; 10, second vertical pipe; 11, first connecting pipe DETAILED DESCRIPTION
[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0023] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.
[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0025] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention. They do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.
[0026] In the present utility model, terms such as "connected" and "connection" should be understood in a broad sense, indicating that the connection can be fixed, integral or detachable; it can be directly connected or indirectly connected through an intermediate medium. For relevant scientific research or technical personnel in this field, the specific meaning of the above terms in the present utility model can be determined according to specific circumstances, and it cannot be understood as a limitation of the present utility model.
[0027] In the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.
[0028] Example
[0029] Please refer to Figure 1 The embodiment of the present application provides a pipeline emptying device for emptying pipelines for anti-freezing during winter shutdown, including a U-shaped pipeline 1, an electromagnetic flowmeter 2, a non-contact pipeline liquid level sensor 3, a temperature sensor 4, an electric emptying valve 5, an emptying pipe structure (a first emptying pipe 6, a second emptying pipe 7), a horizontal pipe 8, a first vertical pipe 9, a second vertical pipe 10, and a first connecting pipe 11;
[0030] Specifically, the U-shaped pipe 1 includes a horizontal pipe 8 and a vertical pipe, and the two ends of the horizontal pipe 8 are respectively connected to the first vertical pipe 9 and the second vertical pipe 10. The first vertical pipe 9 is fixedly connected with an electromagnetic flowmeter 2 for measuring the flow rate and flow of the liquid in the pipe; the pipe surface of the horizontal pipe 8 is fixedly connected with a temperature sensor 4 for constantly feeding back the changes in the external temperature; at the same time, a drain pipe structure is also provided on the horizontal pipe, including a first drain pipe 6 and a second drain pipe 7, and the pipes of the drain pipes are connected, and the residual liquid is discharged from the pipe mouth of the first drain pipe 6; the electric drain valve 5 is located below the pipe outlet where the first drain pipe 6 and the second drain pipe 7 are connected; the non-contact pipe liquid level sensor 3 is located on the pipe surface of the second drain pipe 7, and is used to detect whether there is liquid in the pipe where the sensor is located.
[0031] In this embodiment, the second vertical pipe 10 is connected to the first connecting pipe 11 , and the pipe height of the water inlet of the first vertical pipe 9 is higher than the pipe height of the first connecting pipe 11 .
[0032] In this embodiment, the first drain pipe 6 and the second drain pipe 7 are both connected to the U-shaped pipe.
[0033] In this embodiment, the first drain pipe 6 is a straight pipe; the second drain pipe 7 is a right-angle pipe, and the pipe outlets are interconnected.
[0034] In this embodiment, the first vertical pipeline 9 includes a first pipe section and a second pipe section, the pipe sections are integrated with each other, and the electromagnetic flowmeter 2 is installed at the intersection of the two pipe sections, wherein the length of the first pipe section is five times the pipe diameter, and the length of the second pipe section is three times the pipe diameter.
[0035] In this embodiment, the electromagnetic flowmeter 2, temperature sensor 4, electric drain valve 5 and non-contact pipeline liquid level sensor 3 are connected to the terminal device through the existing wired communication method. The terminal device can use an existing computer, can store and display the detected data, can compare the detected data with the standard data, and realize the regulation of the device; wherein, the standard data can be set in advance.
[0036] The implementation principle of the pipeline emptying device for emptying pipelines for anti-freezing during winter shutdown of the present application is as follows: the temperature sensor is used to feedback the temperature change of the outside world, the electromagnetic flowmeter is used to feedback the change of the liquid flow inside the pipeline, and the non-contact pipeline liquid level sensor is used to feedback the change of the liquid height inside the pipeline at its location;
[0037] When the outside temperature is less than 0℃, the electromagnetic flowmeter displays 0, and the non-contact pipeline liquid level sensor meets the high liquid level value, the electric drain valve is regulated to open and discharge the remaining liquid;
[0038] When the non-contact pipeline liquid level sensor meets the low liquid level value, the electric drain valve is regulated to close, and the closed state is maintained for 1 hour, and the temperature signal is re-judged;
[0039] When the non-contact pipeline liquid level sensor does not meet the low liquid level value, and the electromagnetic flowmeter displays a value other than 0, the electric drain valve is regulated to close, and after keeping the closed state for 1 hour, the temperature signal is re-judged;
[0040] When the non-contact pipeline liquid level sensor does not meet the low liquid level value and the electromagnetic flowmeter displays 0, keep the electric drain valve open and continue to drain the remaining liquid;
[0041] When the outside temperature is greater than 0°C, the electromagnetic flowmeter display is not 0, or the non-contact pipeline liquid level sensor does not meet the high liquid level value, keep the electric drain valve in the closed state. After keeping the closed state for 1 hour, re-judge the temperature signal.
[0042] In this embodiment, the high liquid level and the low liquid level of the non-contact pipeline liquid level sensor are both fixed values, which are determined by the pipeline diameter and pipeline type.
[0043] A pipeline includes the above-mentioned pipeline emptying device, which controls the opening and closing of the electric emptying valve according to changes in the external temperature, liquid flow, liquid level height, etc., so as to automatically complete the emptying of water from the stopped pipeline, thereby ensuring the stable and efficient operation of the system, greatly reducing the freezing and cracking of the pipeline caused by the failure to empty the water in winter, and avoiding the loss of property and personal safety.
[0044] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
[0045] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.
Claims
1. A pipeline emptying device for emptying and anti-freezing pipelines during winter shutdown, characterized in that: include: A U-shaped pipe, a first connecting pipe, an electromagnetic flowmeter, a temperature sensor, an electric drain valve and a drain pipe structure, wherein the U-shaped pipe includes a horizontal pipe and a vertical pipe, and the two ends of the horizontal pipe are respectively connected to the first vertical pipe and the second vertical pipe; the first vertical pipe is fixedly connected to the electromagnetic flowmeter; the pipe surface of the horizontal pipe is fixedly connected to the temperature sensor; the bottom of the U-shaped pipe is provided with a drain pipe structure; the drain pipe outlet is provided with an electric drain valve.
2. The pipeline emptying device according to claim 1, characterized in that: The drain pipe structure comprises a first drain pipe and a second drain pipe; the first drain pipe and the second drain pipe are connected to each other, and the residual liquid is discharged from the pipe opening of the first drain pipe.
3. The pipeline emptying device according to claim 1, characterized in that: The second vertical pipe is connected to the first connecting pipe, and the pipe height of the water inlet of the first vertical pipe is higher than the pipe height of the first connecting pipe.
4. The pipeline emptying device according to claim 2, characterized in that: The first drain pipe and the second drain pipe are both connected to the U-shaped pipe.
5. The pipeline emptying device according to claim 2, characterized in that: The first drain pipe is a straight pipe; the second drain pipe is a right-angle pipe, and the pipe outlets are interconnected.
6. The pipeline emptying device according to claim 1, characterized in that: It also includes a non-contact pipeline liquid level sensor, which is arranged on the pipeline surface of the second drain pipe.
7. The pipeline emptying device according to claim 1, characterized in that: The first vertical pipeline includes a first pipe section and a second pipe section, the pipe sections are integrated with each other, and the electromagnetic flowmeter is installed at the intersection of the two pipe sections; the length of the first pipe section is five times the pipe diameter, and the length of the second pipe section is 3 times the pipe diameter.
8. The pipeline emptying device according to claim 6, characterized in that: The temperature sensor is used to feedback the external temperature change; the electromagnetic flowmeter is used to feedback the change of the liquid flow inside the pipeline.
9. The pipeline emptying device according to claim 1, characterized in that: The electromagnetic flowmeter, temperature sensor, electric drain valve and non-contact pipeline liquid level sensor are connected to the terminal device through the existing wired communication method.
10. A pipeline, characterized in that: It comprises a pipeline emptying device as described in any one of claims 1 to 9.