CN215811432U - Valve internal leakage detection device and regional valve internal leakage detection system - Google Patents
Valve internal leakage detection device and regional valve internal leakage detection system Download PDFInfo
- Publication number
- CN215811432U CN215811432U CN202121822865.8U CN202121822865U CN215811432U CN 215811432 U CN215811432 U CN 215811432U CN 202121822865 U CN202121822865 U CN 202121822865U CN 215811432 U CN215811432 U CN 215811432U
- Authority
- CN
- China
- Prior art keywords
- valve
- internal leakage
- leakage detection
- temperature
- detection device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
A valve inner leakage detection device is used for detecting the valve inner leakage condition of a valve (1) installed on a pipeline for conveying a heat medium, and comprises a temperature sensor (2) installed on the front pipe wall of the valve (1) to be detected and a temperature sensor (2) installed on the rear pipe wall of the valve (1) to be detected; an area valve internal leakage detection system is used for monitoring and early warning the internal leakage condition of a valve (1) installed in a pipeline for conveying a heat medium in an area to be detected, wherein each valve (1) to be detected in the area is provided with the valve internal leakage detection device; the functions of real-time supervision and early warning of the valve of the thermodynamic system can be realized.
Description
Technical Field
The utility model relates to a valve internal leakage detection device and a regional valve internal leakage detection system.
Background
Valves are particularly widely used thermal equipment in thermal power plants, and leakage, failure and the like of the valves directly affect the safety and the economical efficiency of the plants. The valve leakage mainly comprises two conditions of internal leakage and external leakage, the internal leakage of the valve can cause a certain amount of energy loss, the heat load of a condenser is increased, the exhaust vacuum of a unit is reduced, the heat consumption of power generation is increased, and even the unit does not carry a large load when the internal leakage is serious. The leakage of the valve has the disadvantages of heat loss and working medium loss, and the heat loss can cause energy loss and harm the environment of a power plant. In order to solve the problems of safety and economy caused by valve internal leakage, the predictive detection and management of the internal leakage of the valve of the thermodynamic system become a main direction for the research and application of the internal leakage of the valve at present, and meanwhile, an important reference basis is provided for maintenance.
In view of the above problems, there is a need for monitoring and warning the internal leakage of a high pressure valve.
Disclosure of Invention
The present invention provides a valve internal leakage detection device and a regional valve internal leakage detection system, aiming at the technical current situation.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides a leak detection device in valve for to installing carrying out the detection of the interior condition of leaking of valve at the valve of carrying hot medium pipeline, its characterized in that, including the temperature sensor who installs pipe wall department before the valve that awaits measuring and the temperature sensor who installs pipe wall department behind the valve that awaits measuring.
Further, the temperature sensor is a thermocouple temperature sensor.
An area valve internal leakage detection system for monitoring and early warning of internal leakage of valves installed in pipelines for conveying heat media in an area to be detected, wherein each valve to be detected in the area is provided with the valve internal leakage detection device as claimed in claim 1 or 2.
Further, the region that awaits measuring divides into 2 little regions more than, and every little region sets up 1 temperature acquisition appearance, all temperature sensor in the district are connected the temperature acquisition appearance, show on the temperature acquisition appearance the temperature numerical value that all temperature sensor in the little region measured.
Furthermore, the temperature acquisition instrument arranged in each small area is connected with a data platform, and the data platform is connected with an upper layer platform.
The valve internal leakage detection device can detect the internal leakage condition of a single valve. The regional valve internal leakage detection system formed by the regional valve internal leakage detection system can realize the functions of real-time supervision and early warning of the valves of a thermodynamic system, can simultaneously realize local display and remote monitoring of the leakage states of the high-temperature and high-pressure valves, and can particularly alarm and inform maintenance personnel to perform corresponding investigation and treatment when the valves have large leakage.
The real-time supervision system judges the leakage condition of each unit valve, counts the number of valves in different leakage states in the whole plant area, and helps an equipment manager to know the state of the valves more accurately and quickly, so that a maintenance plan is formulated reasonably, and safe driving and protection navigation can be provided for safe and economic operation of the power plant unit.
Drawings
Fig. 1 is a schematic view of the valve internal leakage detection device of the present invention.
FIG. 2 is a schematic view of a zone valve internal leak detection system of the present invention.
FIG. 3 is a schematic view of a further area valve internal leak detection system of the present invention.
Detailed Description
The following description will be made of an embodiment of the present invention by taking a steam pipeline valve of a thermal power plant as an example, as shown in fig. 1 to 3.
The valve internal leakage detection device is used for detecting the valve internal leakage condition of a valve 1 arranged on a pipeline for conveying a heat medium in a thermal power plant as shown in figure 1. The valve inner leakage detection device comprises a temperature sensor 2 arranged on the front pipe wall of the valve 1 to be detected and a temperature sensor 2 arranged on the rear pipe wall of the valve 1 to be detected. The temperature sensor 2 is suitably a thermocouple temperature sensor. The thermocouples are arranged on pipelines in front of and behind the valve in an adherence mode. The heat medium is mainly steam, and the valve is mainly a drain valve.
The regional valve internal leakage detection system disclosed by the utility model is used for monitoring and early warning the internal leakage condition of the valve 1 installed in a pipeline for conveying a heat medium in a region to be detected as shown in figure 2, and each valve 1 to be detected in the region is provided with the valve internal leakage detection device.
The area to be measured is divided into more than 2 small areas, each small area is provided with 1 temperature acquisition instrument, all the temperature sensors 2 in the small area are connected with the temperature acquisition instruments, and the temperature acquisition instruments display the temperature values measured by all the temperature sensors 2 in the small area.
Further, as shown in fig. 3, the temperature collector disposed in each small area is connected to a data platform, and the data platform may also be connected to an upper platform. The temperature acquisition instrument can be connected with the system in a network communication mode.
After the material raking device is installed, the connection mode of the temperature acquisition instrument and the in-station data platform can adopt a wireless communication mode, each inspection instrument is provided with a wireless module, the wireless module is installed in a local wall-mounted control box, and the wireless module is connected with wifi signals in a factory and is provided with an independent IP. And the in-station data platform server is also connected with wifi signals in a factory, so that the server is communicated with each inspection instrument through a network, and communication is carried out through a Modbus-TCP protocol. The communication between the data platform and the upper layer platform in the station can adopt wired serial port communication, and the communication protocol is Modbus-RTU.
According to the situation of a thermal power plant, the evaluation standard of a valve early warning mechanism can be determined by combining the analysis of the internal leakage situation of the valve as follows:
according to the internal leakage evaluation standard, temperature data can be directly checked on the on-site inspection instrument, meanwhile, the software platform server has data display, the valve internal leakage early warning function is achieved, operation and inspection personnel inspection work are greatly facilitated, meanwhile, statistics and analysis work of maintenance personnel are facilitated, and important reference basis is provided for a valve maintenance strategy in the future.
All references to left, right, front, rear, etc. in this specification are to be understood as being relative to the drawings attached to this specification for convenience and not as limiting the utility model.
Claims (5)
1. The utility model provides a leak detection device in valve for to installing carrying out the detection of the interior condition of leaking of valve at valve (1) of carrying the hot medium pipeline, its characterized in that, including installing temperature sensor (2) of pipe wall department before valve (1) that awaits measuring and installing temperature sensor (2) of pipe wall department behind valve (1) that awaits measuring.
2. The valve internal leakage detection device according to claim 1, wherein the temperature sensor (2) is a thermocouple temperature sensor.
3. An area valve internal leakage detection system for monitoring and early warning of internal leakage of a valve (1) installed in a pipeline for conveying a heat medium in an area to be detected, and is characterized in that the valve internal leakage detection device as claimed in claim 1 or 2 is arranged on each valve (1) to be detected in the area.
4. The system for detecting the internal leakage of the regional valve as claimed in claim 3, wherein the region to be detected is divided into more than 2 small regions, each small region is provided with 1 temperature acquisition instrument, all the temperature sensors (2) in the small region are connected with the temperature acquisition instruments, and the temperature acquisition instruments display the temperature values measured by all the temperature sensors (2) in the small region.
5. The system for detecting valve internal leakage of claim 4, wherein each of the sub-zones is provided with a temperature collector connected to a data platform, and the data platform is connected to an upper platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121822865.8U CN215811432U (en) | 2021-08-05 | 2021-08-05 | Valve internal leakage detection device and regional valve internal leakage detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121822865.8U CN215811432U (en) | 2021-08-05 | 2021-08-05 | Valve internal leakage detection device and regional valve internal leakage detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215811432U true CN215811432U (en) | 2022-02-11 |
Family
ID=80128734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121822865.8U Active CN215811432U (en) | 2021-08-05 | 2021-08-05 | Valve internal leakage detection device and regional valve internal leakage detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215811432U (en) |
-
2021
- 2021-08-05 CN CN202121822865.8U patent/CN215811432U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103016948B (en) | The online leakage detection apparatus of Thermal Power Station's steam-water pipe drain valve | |
| CN202471131U (en) | System for carrying out real-time monitoring on performance of steam condenser for power plants | |
| CN102169043B (en) | System for detecting gas leakage | |
| CN203824717U (en) | Leakage detection apparatus for enclosed circulating cooling water | |
| CN109915736A (en) | A kind of method of heat distribution pipe network system and its leak detection | |
| CN209690749U (en) | A kind of cable duct well environment comprehensive monitoring and prior-warning device | |
| CN207066699U (en) | A kind of online leak detection system of direct air cooled condenser | |
| CN103424230A (en) | Ultrasonic-based valve leakage wireless detection device and method | |
| CN211717716U (en) | 660MW thermal power generating unit drain valve leakage monitoring system | |
| CN110486792A (en) | Heat supply network remote monitoring and managing system and method based on GPRS network | |
| CN103557992A (en) | Method for detecting inner leakage of steam hydrophobic valve based on valve front pipe wall temperature detection | |
| CN103994332A (en) | Steam directly-buried pipe network with leakage warning device | |
| CN103344351B (en) | Digital heating pipeline monitoring system | |
| CN113669294A (en) | Induced draft fan stall early warning method | |
| CN104820166A (en) | Power cable multi-state comprehensive online monitoring system and method for calculating cable core temperature | |
| CN108447229A (en) | A kind of alarm of Intelligent gas leakage and automatically cut off air source method and device | |
| CN215811432U (en) | Valve internal leakage detection device and regional valve internal leakage detection system | |
| CN104930340B (en) | Distributed wireless monitoring device and system for steam heat-supply network steam trap as well as working method | |
| CN103513291A (en) | Analysis early warning system based on air pre-heater bypass sealing air speed for air pre-heater blocking detection | |
| CN203672570U (en) | Device for detecting inner leakage of steam hydrophobic valve based on valve front pipe wall temperature detection | |
| CN204201492U (en) | The real-time monitoring device that a kind of high-pressure power plant feed water preheater bypass duct leaks | |
| CN203083727U (en) | Wall temperature detection device for inner leakage of steam drain pipeline | |
| CN204176341U (en) | A kind of leak detecting device of defeated hot three layers of sleeve pipe | |
| CN208310858U (en) | Turbine medium-low pressure communication pipe heating system | |
| CN206724998U (en) | A kind of heat recovery heat exchanger work condition inspection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |