CN220418771U - Mechanical seal flow difference detection leakage system - Google Patents
Mechanical seal flow difference detection leakage system Download PDFInfo
- Publication number
- CN220418771U CN220418771U CN202322036197.1U CN202322036197U CN220418771U CN 220418771 U CN220418771 U CN 220418771U CN 202322036197 U CN202322036197 U CN 202322036197U CN 220418771 U CN220418771 U CN 220418771U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- liquid
- mechanical seal
- automatic control
- flowmeter
- 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
- 238000001514 detection method Methods 0.000 title claims description 17
- 239000007788 liquid Substances 0.000 claims abstract description 138
- 239000000498 cooling water Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002826 coolant Substances 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims abstract description 4
- 239000000110 cooling liquid Substances 0.000 claims description 67
- 238000001816 cooling Methods 0.000 abstract description 15
- 238000007789 sealing Methods 0.000 description 19
- 239000010865 sewage Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000003860 storage Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000010808 liquid waste Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Abstract
The utility model relates to a mechanical seal technical field specifically discloses a mechanical seal flow difference detects leakage system, including feed liquor pipeline, go out the liquid pipeline, the pressure gauge and the flowmeter that are connected with the controller electricity are used for detecting the leakproofness that take coolant liquid mechanical seal for the pump, feed liquor pipeline and play liquid pipeline are respectively with taking coolant liquid mechanical seal's cooling water system's water inlet and delivery port intercommunication for the pump, install first automatic control valve at feed liquor pipeline port, go out liquid pipeline port and install fifth automatic control valve, the pressure gauge includes first pressure gauge and second pressure gauge, first pressure gauge is installed in the feed liquor pipeline, the second pressure gauge is installed in the play liquid pipeline, the flowmeter includes first flowmeter and second flowmeter, first flowmeter is installed in the feed liquor pipeline, the second flowmeter is installed in the play liquid pipeline. Whether leakage occurs to the mechanical seal can be detected in real time, so that the cooling system of the mechanical seal is prevented from being broken down or damaged, and normal operation of the mechanical seal is ensured.
Description
Technical Field
The utility model relates to the technical field of mechanical sealing, in particular to a leakage system for detecting mechanical sealing flow difference.
Background
The mechanical seal with cooling liquid for the pump is a common mechanical seal mode, and mainly aims to prevent liquid leakage between a pump shaft and a pump shell and keep a sealing state of liquid in the pump, and the mechanical seal with cooling liquid for the pump is generally composed of a movable ring, a stationary ring, a spring, a cooling water system and a sealing ring. The mechanical seal can prevent the leakage of the pump, in chemical production, a plurality of liquids are toxic, harmful or flammable and explosive, if the leakage of the pump can cause great harm to the production environment and the safety of workers, the mechanical seal can effectively prevent the leakage of the pump, and the production environment and the safety of the workers are ensured; the mechanical seal can also protect the bearings and parts of the pump, which are one of the key parts of the pump, and if the pump leaks, the bearings and parts are corroded and damaged, so that the service life of the pump is influenced, the mechanical seal can effectively protect the bearings and parts of the pump, and the service life of the pump is prolonged; the mechanical seal can also improve the efficiency of the pump, if the pump leaks, the pump efficiency is reduced, thereby affecting the production efficiency and the energy consumption, the mechanical seal can effectively prevent the pump from leaking, and the pump efficiency is improved, thereby improving the production efficiency and saving the energy.
However, the mechanical seal generates heat in the operation process, if insufficient cooling liquid is used for cooling the mechanical seal, the mechanical seal is overheated, so that the service life of the mechanical seal is shortened or the tightness of the mechanical seal is affected, therefore, a cooling system is an essential device in the mechanical seal, but the sealing surface of the mechanical seal is very small, so that liquid leakage possibly occurs due to damage of the sealing surface, failure of a spring or abrasion of a sealing ring in the operation process, and the pressure of a medium transmitted in a pump is possibly lower than that of the cooling liquid, so that the cooling liquid leaks into the medium, the concentration of the medium is reduced, and the process requirement cannot be met, and the reaction condition cannot be met; it is also possible that the medium pressure is high, so that the medium can leak into the cooling liquid, causing cooling liquid pollution, causing malfunction or damage of the cooling system, thereby affecting the normal operation of the mechanical seal and further affecting the normal operation of the pump.
However, during the operation of the pump, the moving ring and the stationary ring of the mechanical seal rotate inside the mechanical seal, which is difficult to find whether the mechanical seal leaks, so that a device capable of rapidly and accurately detecting whether the mechanical seal leaks is needed to solve the problems in the existing mechanical seal.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a leakage system for detecting the flow difference of the mechanical seal, which can detect whether the mechanical seal leaks or not in real time, thereby avoiding the cooling system of the mechanical seal from being broken down or damaged and ensuring the normal operation of the mechanical seal.
In order to solve the problems, the utility model adopts the following technical scheme: the utility model provides a mechanical seal flow difference detects leakage system, including the feed liquor pipeline, the drain pipe, a controller and pressure gauge and flowmeter that are connected with the controller electricity are used for detecting the leakproofness of pump with taking coolant liquid mechanical seal, feed liquor pipeline and drain pipe communicate with the water inlet and the delivery port of pump with taking coolant liquid mechanical seal's cooling water system respectively, there is first automatic control valve at the feed liquor port fixed mounting of feed liquor pipeline, the drain port fixed mounting of drain pipe has fifth automatic control valve, the pressure gauge includes first pressure gauge and second pressure gauge, first pressure gauge fixed mounting is in the feed liquor pipeline, second pressure gauge fixed mounting is in the drain pipe, the flowmeter includes first flowmeter and second flowmeter, first flowmeter fixed mounting is in the feed liquor pipeline, second flowmeter fixed mounting is in the drain pipe, first automatic control valve and fifth automatic control valve are connected with the controller electricity.
The principle of the scheme is as follows:
the mechanical seal flow difference detection leakage system in the scheme is used for detecting the tightness of the mechanical seal with the cooling liquid for the pump, and the cooling water system communication of the liquid inlet pipeline and the liquid outlet pipeline of the detection leakage system and the mechanical seal with the cooling liquid for the pump is used for cooling the mechanical seal with the cooling liquid for the pump so as to ensure that the mechanical seal can normally operate. The pressure and the flow of the cooling liquid in the liquid inlet pipeline are measured by the first pressure gauge and the first flow gauge, measured data are transmitted to the controller by the first pressure gauge and the first flow gauge, the cooling liquid in the liquid inlet pipeline enters the cooling water system to cool the mechanical seal and then flows into the liquid outlet pipeline, the second pressure gauge and the second flow gauge in the liquid outlet pipeline detect the pressure and the flow of the cooling liquid in the liquid outlet pipeline and transmit the measured data to the controller, the controller compares the data of the second pressure gauge with the data of the first pressure gauge, so that whether the cooling liquid flows into the mechanical seal or not is determined, the effect of cooling the mechanical seal or not is achieved, the tightness of the mechanical seal is determined, and the controller compares the data of the second flow gauge with the data of the first flow gauge so as to determine whether the cooling liquid leaks into the pump or whether the medium conveyed in the pump leaks into the cooling liquid or not, and further determines the tightness of the mechanical seal.
The beneficial effect that this scheme produced is:
1. the data measured and returned by the first flowmeter and the second flowmeter are compared in real time through the controller, so that whether the cooling liquid leaks into the medium conveyed in the pump or whether the medium conveyed in the pump leaks into the cooling liquid is judged, the tightness of the mechanical seal is further determined, and the mechanical seal can be ensured to normally operate;
2. the data detected by the first pressure gauge and the second pressure gauge are monitored in real time through the controller, the tightness of the mechanical seal is detected, and the mechanical seal can be ensured to normally operate.
Further, the device also comprises a Y-shaped filter communicated with the liquid inlet pipeline, an inlet of the Y-shaped filter is communicated with the first automatic control valve, an outlet of the Y-shaped filter is communicated with the first pressure gauge, a sewage drain is fixedly connected with the sewage drain, the sewage drain is communicated with a port of the liquid outlet pipeline, and a second automatic control valve is fixedly installed in the sewage drain. The Y-shaped filter is arranged in the liquid inlet pipeline to filter cooling liquid, so that the cooling water containing impurities is prevented from entering the mechanical seal to cause blockage and the like, the Y-shaped filter can automatically discharge the impurities generated by filtering into the sewage pipeline, the pressure value of the cooling liquid flowing into the liquid inlet pipeline through the first automatic control valve is fixed, if the pressure value detected by the first pressure gauge is smaller than the fixed pressure value of the cooling liquid, the cooling liquid is possibly blocked at the position of the Y-shaped filter, at the moment, after receiving the data of the first pressure gauge, the controller controls the second automatic control valve to be opened, and after the second automatic control valve is opened, the impurities generated by filtering in the Y-shaped filter are discharged into the liquid outlet pipeline from the sewage pipeline and then discharged into the sewage treatment system from the liquid outlet pipeline for treatment.
Further, the device also comprises a pH meter and an alarm, wherein the pH meter is fixedly arranged in the liquid outlet pipeline, and the alarm is fixedly arranged on the controller and is electrically connected with the controller. The pH meter is arranged in the liquid outlet pipeline to detect the pH value of the cooling liquid in the liquid outlet pipeline, data are transmitted to the controller, the controller processes the data, if the pH value changes, the medium conveyed in the pump leaks into the cooling liquid, and the controller controls the alarm to give an alarm to prompt a worker to overhaul or replace equipment.
Further, the novel cooling water pump comprises a hose, and is characterized by further comprising a hose, wherein the hose comprises a liquid inlet hose and a liquid outlet hose, one end of the liquid inlet hose is communicated with a liquid inlet pipeline, the other end of the liquid inlet hose is communicated with a pipeline inlet of a cooling water system with a cooling liquid mechanical seal for a pump, one end of the liquid outlet hose is communicated with a pipeline outlet of the cooling water system with the cooling liquid mechanical seal for the pump, and the other end of the liquid outlet hose is communicated with a liquid outlet pipeline. Through installing the feed liquor hose between the water inlet of feed liquor pipeline and cooling water system to install out the liquid hose between cooling water pipeline's delivery port and the play liquid pipeline, can promote the installation convenience of whole detection leakage system and pump through the installation of feed liquor hose and liquid hose, can promote installation effectiveness.
Further, the automatic control device further comprises a calibration automatic control valve, a third automatic control valve and a fourth automatic control valve, wherein a calibration pipeline is communicated between the first flowmeter and the second flowmeter, the calibration automatic control valve is fixedly installed in the calibration pipeline, the third automatic control valve is fixedly installed in a liquid inlet pipeline between the first flowmeter and the liquid inlet hose, and the fourth automatic control valve is fixedly installed in a liquid outlet pipeline between the liquid outlet hose and the second flowmeter. The first flowmeter and the second flowmeter are directly communicated through the calibration pipeline, under the condition that the third automatic control valve in the liquid inlet pipeline and the fourth automatic control valve in the liquid outlet pipeline are closed, the calibration automatic control valve is opened to calibrate the first flowmeter and the second flowmeter, meanwhile, in the whole mechanical seal operation process, the calibration automatic control valve is always in a closed state, the third automatic control valve and the fourth automatic control valve are always in an open state, cooling liquid is ensured to enter a sealing surface of the mechanical seal for cooling, and the mechanical seal can normally operate; and the controller is preset with a pressure value corresponding to the operation of the mechanical seal, the second pressure gauge detects the pressure value of the cooling liquid in the liquid outlet pipeline in real time and compares the pressure value with a pressure value corresponding to the normal operation of the mechanical seal, and when the two data are inconsistent, the controller controls the third automatic control valve and the fourth automatic control valve to adjust the opening degree, so that the pressure value of the water inlet and the water outlet of the water cooling system is consistent, and the pressure value is consistent with the pressure value required by the mechanical seal.
Further, ball valves are fixedly arranged at the port of the liquid inlet pipeline and the port of the liquid outlet pipeline. Ball valves are arranged at the port of the liquid inlet pipeline and the port of the liquid outlet pipeline, so that the on-off of the cooling liquid between the liquid inlet pipeline and the cooling liquid storage device and the on-off of the liquid outlet pipeline and the waste liquid treatment equipment are controlled.
Further, the device also comprises a thermometer which is fixedly arranged in the liquid outlet pipeline and is electrically connected with the controller. The thermometer transmits the detected temperature in the liquid outlet pipeline to the controller, and the controller compares the temperature with a normal temperature range value, so that the mechanical seal can normally operate when the flow rate or the flow velocity of cooling water is regulated.
Drawings
Fig. 1 is a schematic structural diagram of a leakage detecting system for detecting a mechanical seal flow difference.
Reference numerals in the drawings of the specification include: the system comprises a liquid inlet pipeline 101, a liquid outlet pipeline 102, a Y-shaped filter 103, a first automatic control valve 104, a second automatic control valve 105, a sewage pipeline 1501, a third automatic control valve 106, a calibration automatic control valve 107, a calibration pipeline 1071, a fourth automatic control valve 108, a fifth automatic control valve 109, a pH meter 110, a thermometer 111, a liquid inlet hose 112, a liquid outlet hose 113, a water inlet 114, a water outlet 115, a ball valve 116, an alarm 117, a first pressure meter 201, a second pressure meter 202, a first flowmeter 301, a second flowmeter 302, a controller 401, a horizontal centrifugal pump 501 and sewage treatment equipment 502.
Detailed Description
The following is a further detailed description of the embodiments:
the mechanical seal for the pump is a sealing mechanism for sealing between a pump shaft and a pump shell, and comprises a single-end-face sealing mechanism and a double-end-face mechanical seal, wherein the mechanical seal is the double-end-face mechanical seal, and the double-end-face mechanical seal is a device for preventing fluid leakage, which is formed by keeping the joint and relative sliding of end faces (friction pairs) perpendicular to a rotation axis under the action of fluid pressure and the elasticity of a compensation mechanism and the cooperation of auxiliary seals; the sealing structure is used for preventing medium leakage, but the friction temperature of a friction pair of the sealing structure is increased, so that the sealing effect and the service life of the sealing structure can be influenced, cooling liquid is required to be continuously cooled, the cooling liquid must always flow from an inlet end to an outlet end, a double-end mechanical seal generally comprises a cooling liquid inlet end and an outlet end, and the mechanical seal is a complete set of components.
The mechanical seal with the cooling liquid for the pump comprises a movable ring, a stationary ring, a spring, a cooling water system and a sealing ring, wherein the cooling water system is usually composed of a cooler, a water pump, a pipeline and the like, cooling water can be introduced into the sealing surface of the mechanical seal, stability and reliability of the sealing surface are kept, the pipeline comprises a water inlet 114 and a water outlet 115, and the cooling liquid is introduced into the cooling water system through the water inlet 114 and the water outlet 115 to cool the mechanical seal of the pump, so that the mechanical seal of the pump can be ensured to normally run.
The pump involved in the scheme can be a horizontal centrifugal pump 501, the disclosed leakage detection system is used for detecting the sealing performance of the mechanical seal of the horizontal centrifugal pump 501, and whether the cooling system of the mechanical seal is faulty or damaged is determined according to whether the cooling liquid for detecting the mechanical seal is leaked or not, so that whether the mechanical seal of the horizontal centrifugal pump 501 can normally operate is determined.
As shown in fig. 1, a mechanical seal differential flow detection leakage system has the following structure: the device comprises a liquid inlet pipeline 101 and a liquid outlet pipeline 102, wherein the liquid inlet pipeline 101 is communicated with a water inlet 114 of a cooling water system, the liquid outlet pipeline 102 is communicated with a water outlet 115 of the cooling water system, a first automatic control valve 104 is fixedly arranged at a port of the liquid inlet pipeline 101, a first pressure gauge 201 and a first flowmeter 301 are sequentially and fixedly arranged in the liquid inlet pipeline 101 between the port of the liquid inlet pipeline 101 and the water inlet 114 of the cooling water system, a Y-shaped filter 103 communicated with the liquid inlet pipeline 101 is fixedly arranged between the first automatic control valve and the first pressure gauge 201 through a flange or threads, an inlet of the Y-shaped filter 103 is communicated with the first automatic control valve, an outlet of the Y-shaped filter 103 is communicated with the first pressure gauge 201, a drain of the Y-shaped filter 103 is fixedly connected with a drain pipeline 1501, a second automatic control valve 105 is fixedly arranged in the drain pipeline 1501, a fifth automatic control valve 109 is fixedly arranged at a port of the liquid outlet pipeline 102, a second flow gauge 302 and a second pressure gauge 202 are sequentially and fixedly arranged in the liquid outlet pipeline 102 between the water outlet 115 of the cooling water system and the fifth automatic control valve 109, an inlet of the Y-shaped filter 103 is communicated with the drain pipeline 102, and the drain pipeline 102 is prevented from being discharged into the drain pipeline 102, and the drain pipeline 102 is communicated with the drain pipeline 102.
A thermometer 110 is fixedly installed in the liquid outlet pipe 102 between the water outlet 115 of the cooling water system and the fifth automatic control valve 109, the thermometer 111 is electrically connected with the controller 401, the thermometer 111 monitors the temperature in the liquid outlet pipe 102 in real time and transmits the detected data to the controller 401, the controller 401 compares the received data with a preset normal temperature range in the controller 401, and if the temperature in the liquid outlet pipe 102 detected by the thermometer 111 is not in the normal temperature range, the temperature in the liquid outlet pipe 102 is controlled in the normal temperature range by adjusting the flow or the flow rate of the liquid outlet pipe 102, so that the mechanical seal can be ensured to normally operate.
A pH meter 110 is fixedly installed in the liquid outlet pipe 102 between the water outlet 115 of the cooling water system and the fifth automatic control valve 109, the pH meter 110 is electrically connected with the controller 401, an alarm 117 is fixedly installed on the controller 401, the alarm 117 is electrically connected with the controller 401, the pH meter 110 detects the pH value of the cooling liquid in the output pipe in real time and transmits the detected data to the controller 401, a normal pH value of the cooling liquid is preset in the controller 401, the controller 401 compares the value detected by the pH meter 110 with the normal pH value, if the pH value detected by the pH meter 110 is inconsistent with the normal pH value, the mechanical seal of the horizontal centrifugal pump 501 may leak, and the controller 401 controls the alarm 117 to alarm to prompt the staff that the current mechanical seal leaks and needs to replace or maintain the mechanical seal.
A calibration pipe 1071 is connected between the first flowmeter 301 and the second flowmeter 302, a calibration automatic control valve 107 is fixedly installed in the calibration pipe 1071, the first flowmeter 301, the second flowmeter 302, the third automatic control valve 106 of the calibration automatic control valve 107 and the fourth automatic control method valve 108 are electrically connected with the controller 401, when the first flowmeter 301 and the second flowmeter 302 are calibrated, the third automatic control valve 106 in the liquid inlet pipe 101 and the fourth automatic control valve 108 in the liquid outlet pipe 102 are closed through the controller 401, the calibration automatic control valve 107 is opened, the first flowmeter 301 and the second flowmeter 302 are directly connected, the cooling liquid is input into the liquid inlet pipe 101, the flow rate of the cooling liquid is detected by the first flowmeter 301 and the second flowmeter 302 and transmitted to the controller 401, and the controller 401 compares the data to calibrate the first flowmeter 301 and the second flowmeter 302.
A liquid inlet hose 112 is installed between the third automatic control valve 106 and the water inlet 114 of the cooling water system, a liquid outlet hose 113 is installed between the water outlet 115 of the cooling water system and the fourth automatic control valve 108, and installation convenience between the whole detection leakage system and the horizontal centrifugal pump 501 can be improved through installation of the liquid inlet hose 112 and the liquid outlet hose 113, and installation efficiency can be improved.
The ball valve 116 is fixedly arranged at the liquid inlet port of the liquid inlet pipeline 101 and the liquid outlet port of the liquid outlet pipeline 102, the ball valve 116 can control the on-off between the liquid inlet pipeline 101 and the liquid cooling and liquid storage device, and the on-off between the liquid outlet and the liquid waste treatment equipment, and when each part or the whole in the detection leakage system is maintained or replaced, the on-off between the liquid cooling and liquid storage device and the liquid waste treatment equipment and the detection leakage system is maintained or replaced through the ball valve 116, so that the detection leakage system is convenient to maintain or replace.
The specific implementation process is as follows:
the cooling liquid storage device is communicated with the liquid inlet pipeline 101, and the wastewater treatment equipment is communicated with the liquid outlet pipeline 102.
Before the horizontal centrifugal pump 501 is operated in production, the first automatic control valve, the fifth automatic control valve 109 and the calibration automatic control valve 107 are controlled to be opened by the controller 401, the second automatic control valve 105, the third automatic control valve 106 and the fourth automatic control valve 108 are controlled to be closed, then the ball valves 116 of the port of the liquid inlet pipe 101 and the port of the liquid outlet pipe 102 are opened, the cooling liquid flows through the first pressure gauge 201, the first flow gauge 301, the second flow gauge 302 and the second pressure gauge 202 through the liquid inlet pipe 101, the pressure and the flow rate of the cooling liquid are detected by the first pressure gauge 201, the first flow gauge 301, the second flow gauge 302 and the second pressure gauge 202, the detected data are transmitted to the controller 401, and the calibration operation of the first pressure gauge 201, the first flow gauge 301, the second flow gauge 302 and the second pressure is realized through the controller 401, the operations of data processing, comparison and the like.
After calibration is completed, the calibration automatic control valve 107 is closed, the third automatic control valve 106 and the fourth automatic control valve 108 are opened, when the horizontal centrifugal pump 501 starts to operate, the first pressure gauge 201 detects the pressure value in the liquid inlet pipeline 101 in real time, the first flow gauge 301 detects the flow rate of the cooling liquid in the liquid inlet pipeline 101 in real time, and according to the pressure value detected by the first pressure gauge 201 and the flow rate value detected by the first flow gauge 301, the fixed pressure value and the fixed flow rate value of the port of the cooling liquid inlet pipeline 101 are compared, whether the clogging occurs in the YY-type filter 103 due to excessive impurities is determined, if the data detected by the first pressure gauge 201 and the first flow gauge 301 are smaller than the fixed pressure value and the fixed flow rate value in the liquid inlet pipeline 101, the first pressure gauge 201 and the first flow gauge 301 indicate that the clogging occurs in the YY-type filter 103, and the second automatic control valve 105 in a sewage pipeline 1501 which is communicated with the YY-type filter 103 is controlled by the controller 401 is opened, the impurities in the YY-type filter 103 are discharged, and the circulation of the cooling liquid is ensured not to be blocked; the mechanical seal of the horizontal centrifugal pump 501 is cooled by the cooling liquid through the water inlet 114 of the cooling water system, then discharged from the water outlet 115 and discharged from the liquid outlet pipeline 102, when the cooling liquid passes through the second flowmeter 302, the second flowmeter 302 transmits the detected flow of the cooling liquid to the controller 401, the controller 401 compares the data transmitted back by the second flowmeter 302 and the first flowmeter 301 to judge whether leakage occurs in the mechanical seal, when the cooling liquid passes through the second pressure gauge 202, the second pressure gauge 202 transmits the detected pressure of the cooling liquid to the controller 401, the controller 401 compares the detected pressure value of the second flowmeter 302 with a preset mechanical seal constant pressure value, and therefore the third automatic control valve 106 and the fourth automatic control valve 108 are controlled to adjust the pressure value of the cooling liquid, so that the pressure value of the cooling liquid entering the mechanical seal is equal to the mechanical seal constant pressure value; when the cooling liquid in the liquid outlet pipeline 102 flows through the pH meter 110, the pH meter 110 transmits the detected pH value of the cooling liquid to the controller 401, the controller 401 compares the received data with the normal pH value of the cooling liquid, if the two data are inconsistent, the controller 401 controls the alarm 117 to alarm, when the cooling liquid flows through the temperature pH meter 110, the temperature meter 111 transmits the detected temperature value of the cooling liquid to the controller 401, the controller 401 compares the received data with the normal temperature range, if the temperature is higher than the normal temperature range, the flow rate and the flow rate of the cooling liquid are increased for cooling, and if the temperature is lower than the normal range, the flow rate and the flow rate of the cooling liquid are reduced for cooling, so that the mechanical seal is ensured to be cooled normally.
The cooling liquid enters the mechanical seal of the horizontal centrifugal pump 501 from the liquid inlet pipeline 101 to be cooled, and then is discharged from the liquid outlet pipeline 102, the waste liquid discharged from the liquid outlet pipeline 102 enters the boiling water treatment equipment, the waste liquid is treated by the waste water treatment equipment and then is recycled into the mechanical seal of the horizontal centrifugal pump 501 to be cooled, so that the cooling liquid is recycled, in the process, the first pressure gauge 201, the second pressure gauge 202, the first flowmeter 301, the second flowmeter 302 and the pH meter 110 are continuously in a working state, the pressure and the flow of the cooling liquid in the liquid inlet pipeline 101 and the liquid outlet pipeline 102 are monitored, so that whether the mechanical seal leaks is determined, the cooling system of the mechanical seal is prevented from being broken or damaged, and the normal operation of the mechanical seal is ensured; meanwhile, the temperature pH meter 110 also monitors the temperature of the cooling liquid in real time, so that the mechanical seal can be further ensured to normally operate.
The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (7)
1. The utility model provides a mechanical seal class difference detects leakage system, is used for detecting the leakproofness that takes coolant liquid mechanical seal for the pump, its characterized in that including feed liquor pipeline, play liquid pipeline, controller and pressure gauge and flowmeter that is connected with the controller electricity: the liquid inlet pipeline and the liquid outlet pipeline are respectively communicated with a water inlet and a water outlet of the cooling water system with the cooling liquid mechanical seal for the pump, a first automatic control valve is fixedly arranged at a liquid inlet port of the liquid inlet pipeline, a fifth automatic control valve is fixedly arranged at a liquid outlet port of the liquid outlet pipeline, the manometer comprises a first manometer and a second manometer, the first manometer is fixedly arranged in the liquid inlet pipeline, the second manometer is fixedly arranged in the liquid outlet pipeline, the flowmeter comprises a first flowmeter and a second flowmeter, the first flowmeter is fixedly arranged in the liquid inlet pipeline, the second flowmeter is fixedly arranged in the liquid outlet pipeline, and the first automatic control valve and the fifth automatic control valve are electrically connected with the controller.
2. A mechanical seal flow difference detection leakage system according to claim 1, wherein: the automatic control device comprises a liquid inlet pipe, a liquid outlet pipe, a first automatic control valve, a Y-shaped filter, a first pressure gauge, a second pressure gauge, a drain outlet, a drain pipe and a second automatic control valve.
3. A mechanical seal flow difference detection leakage system according to claim 2, wherein: the device also comprises a pH meter and an alarm, wherein the pH meter is fixedly arranged in the liquid outlet pipeline, and the alarm is fixedly arranged on the controller and is electrically connected with the controller.
4. A mechanical seal flow difference detection leakage system according to claim 3, wherein: still include the hose, the hose includes feed liquor hose and play liquid hose, the one end and the feed liquor pipeline intercommunication of feed liquor hose, the other end and the pump of feed liquor hose are with taking cooling liquid mechanical seal's cooling water system's pipeline entry intercommunication, the one end and the pump of play liquid hose are with taking cooling liquid mechanical seal's cooling water system's pipeline export intercommunication, the other end and the play liquid pipeline intercommunication of play liquid hose.
5. A mechanical seal flow difference detection leakage system according to claim 4 and wherein: the automatic control device comprises a first flowmeter, a second flowmeter, a third automatic control valve, a fourth automatic control valve, a calibration pipeline, a third automatic control valve and a fourth automatic control valve, wherein the calibration pipeline is communicated between the first flowmeter and the second flowmeter, the calibration automatic control valve is fixedly arranged in the calibration pipeline, the third automatic control valve is fixedly arranged in a liquid inlet pipeline between the first flowmeter and the liquid inlet hose, and the fourth automatic control valve is fixedly arranged in a liquid outlet pipeline between the liquid outlet hose and the second flowmeter.
6. A mechanical seal flow difference detection leakage system according to claim 5 and wherein: ball valves are fixedly arranged at the port of the liquid inlet pipeline and the port of the liquid outlet pipeline.
7. A mechanical seal differential flow detection leakage system according to claim 6 and wherein: the liquid outlet pipe is fixedly arranged in the liquid outlet pipe, and the liquid outlet pipe is electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322036197.1U CN220418771U (en) | 2023-07-31 | 2023-07-31 | Mechanical seal flow difference detection leakage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322036197.1U CN220418771U (en) | 2023-07-31 | 2023-07-31 | Mechanical seal flow difference detection leakage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220418771U true CN220418771U (en) | 2024-01-30 |
Family
ID=89650870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322036197.1U Active CN220418771U (en) | 2023-07-31 | 2023-07-31 | Mechanical seal flow difference detection leakage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220418771U (en) |
-
2023
- 2023-07-31 CN CN202322036197.1U patent/CN220418771U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202560624U (en) | Circulation protection and control system of mechanical seals | |
| CN102278302B (en) | Mechanical seal identification platform and method for reactor coolant pump of million-kilowatt nuclear power station | |
| WO2021103825A1 (en) | Novel shallow-buried underground leakage-proof pipeline and working method thereof | |
| CN220418771U (en) | Mechanical seal flow difference detection leakage system | |
| CN209148213U (en) | A kind of power plant hydrogen gas leakage monitoring device | |
| KR20140022170A (en) | System for controlling water leakage sensing and method for controlling water leakage sensing uging the same | |
| CN113528727A (en) | Online quick leak detection method for blast furnace tuyere sleeve | |
| CN108488073B (en) | Environment-friendly slurry circulating pump group | |
| CN212717232U (en) | Automatic detection and discharge device for circulation of machine seal cooling water of pump in MVR system | |
| CN111192697A (en) | Leakage alarm detection system based on siphon principle | |
| CN111275311B (en) | Dry gas seal fault diagnosis and failure analysis method, system and computer storage medium | |
| JP2001032701A (en) | Condenser, power generation plant equipment and operating method therefor | |
| CN215415181U (en) | Online continuous pH value measuring device for intermittent decomposer in coal tar deep processing | |
| CN218094588U (en) | Rotary vane valve for single crystal furnace | |
| CN220891220U (en) | Ball valve capable of detecting leakage | |
| CN219861419U (en) | Device for controlling water temperature difference by blast furnace tuyere small sleeve | |
| CN110661016A (en) | Flow resistance testing device and flow resistance testing method of fuel cell | |
| CN214702651U (en) | On-line ammonia leakage automatic detection system | |
| CN219871231U (en) | Desulfurization pH value measuring device | |
| CN210218888U (en) | On-line monitoring backflow preventer | |
| CN216953017U (en) | Condensate system suitable for stable operation of slag cooler of circulating fluidized bed unit | |
| CN218914032U (en) | Liquid cooling joint integrating temperature and pressure detection function | |
| CN218821153U (en) | Cooling system for water-cooling mechanical seal | |
| CN220151516U (en) | Pump operation early warning safety system | |
| CN209482396U (en) | A kind of circulating water line system being automatically closed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |