CN210664601U - Valve seal leakage quantity measuring device - Google Patents

Abstract

The utility model discloses a valve seal leakage measuring device, which relates to the technical field of pipeline system detection devices, and comprises an inlet hose, a water level monitoring pipe and a leakage measuring pipe; the utility model discloses a water leakage measuring pipe, including intake hose, water level monitoring pipe, inlet hose intercommunication, the vertical setting of water level monitoring pipe and with the intake hose intercommunication, water level monitoring pipe with be provided with the second on the pipeline of intake hose intercommunication and measure the valve, the survey buret of leaking with intake hose intercommunication just the water inlet of surveying buret of leaking is provided with first measurement valve, the survey buret of leaking still is provided with flow automatic measure element. The utility model discloses the device is simple, and operating procedure is simple and convenient, need not to know the water level condition of the pipeline that awaits measuring, does not need abundant operation experience.

Description

Valve seal leakage quantity measuring device

Technical Field

The utility model relates to a pipe-line system detection device technical field, in particular to valve seal water leakage measuring device.

Background

At present, when the downstream sealing water leakage measurement of a main water inlet valve of a pumped storage unit is carried out, water needs to be drained from a volute through a volute water drainage pipe, the water level is always drained to a volute water drainage pipe measuring hole or a measuring branch pipe position, and then the water leakage measurement work is carried out. However, the volute drainage pipe is not transparent, so that the water level change in the pipe cannot be monitored in real time during drainage, and the drainage quantity is large when the drainage valve is fully opened, so that the water level is difficult to be drained to the volute drainage pipe measuring hole or the measuring branch pipe position at one time. Therefore, in actual operation, most of water in the volute drainage pipe is always kept as much as possible by experience, the water level is required to be at least ensured to be above the position of the measuring hole or the branch pipe during specific implementation, then the volute drainage valve is opened to drain water slowly, the water level condition is judged by judging whether water flows out of the measuring hole or the branch pipe during the period, and finally the water level is drained to the position of the measuring hole or the branch pipe. However, it is still difficult to ensure that the water level is discharged to the required position by the empirical operation, and when the water remaining in the volute discharge pipe is large, it takes a long time to discharge water through the small opening of the discharge valve; if the water is discharged through the large opening degree of the drain valve, the pipeline is easy to empty, and thus the water is required to be filled back into the pipeline to the position of the measuring hole or the branch pipe, so that the operation is troublesome.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a valve seal measuring device that leaks, its device is simple, and operating procedure is simple and convenient, need not to know the water level condition of the pipeline that awaits measuring, does not need abundant operation experience.

In order to achieve the above object, the present invention provides a valve sealing condition for measuring a pipeline to be measured, wherein the pipeline to be measured comprises at least one water outlet, the pipeline to be measured comprises at least one valve to be measured at the upstream of the water outlet, the pipeline to be measured comprises at least one drain valve at the downstream of the water outlet, and the measuring device comprises an inlet hose, a water level monitoring pipe and a water leakage measuring pipe; the utility model discloses a water leakage measuring pipe, including intake hose, water level monitoring pipe, inlet hose intercommunication, the vertical setting of water level monitoring pipe and with the intake hose intercommunication, water level monitoring pipe with be provided with the second on the pipeline of intake hose intercommunication and measure the valve, the survey buret of leaking with intake hose intercommunication just the water inlet of surveying buret of leaking is provided with first measurement valve, the survey buret of leaking still is provided with flow automatic measure element.

The device for measuring the water leakage amount of the valve seal further comprises a bracket with adjustable height, wherein the bracket is used for maintaining the water level monitoring pipe to be vertical.

The device for measuring the water leakage amount of the valve seal is characterized in that a water inlet funnel is arranged at the top end of the water level monitoring pipe, and a third measuring valve is arranged at a water outlet of the water inlet funnel.

The device for measuring the water leakage amount of the valve seal is characterized in that the top end of the water level monitoring pipe is communicated with a drainage hose, and a fourth measuring valve is arranged at a water inlet of the drainage hose.

The valve seal water leakage measuring device further comprises any one of an electromagnetic flowmeter, a turbine flowmeter and an ultrasonic flowmeter.

Compared with the prior art, the utility model, its beneficial effect lies in: the device of the utility model has simple structure and simple and convenient operation steps, and the water level condition of the pipeline to be measured does not need to be known and abundant operation experience is not needed in the concrete implementation; the device simultaneously considers that the water passing through the drainage hose is discharged when the water of the water level monitoring pipe overflows, and water can be added through the funnel when the water level of the water level monitoring pipe is insufficient, so that the water level of the water level monitoring pipe is always at a height which is not much higher than the water level difference of the water outlet.

Drawings

Fig. 1 is a schematic structural view of a valve seal water leakage measuring device provided by the present invention;

fig. 2 is a schematic structural diagram of an embodiment of the present invention.

1. A pipeline to be tested; 11. a valve to be tested; 12. an upstream conduit; 13. a downstream conduit; 14. a drain pipe; 15. a drain branch pipe; 16. a drain first valve; 17. a second drain valve; 18. a three-way valve for draining water; 19. a water outlet; 2. an inlet hose; 21. a second metering valve; 3. a water level monitoring pipe; 4. a water leakage measuring pipe; 41. a first metering valve; 5. an automatic flow measuring element; 6. A support; 7. a water inlet funnel; 71. a third metering valve; 8. a drain hose; 81. a fourth measurement valve; 9. a water leakage detection valve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Example (b):

referring to fig. 1 and 2, a valve seal leakage amount measuring device is used for measuring the valve seal condition of a pipeline 1 to be measured, in this embodiment, the pipeline 1 to be measured specifically includes a main pipeline horizontally arranged, a valve 11 to be measured is arranged on the main pipeline, the main pipeline is divided into an upstream pipeline 12 and a downstream pipeline 13 by the valve 11 to be measured, a drain pipe 14 is vertically led out from the downstream pipeline 13, a drain branch pipe 15 is led out from a water outlet 19 of the drain pipe 14, a first drain valve 16 and a second drain valve 17 are respectively arranged above the water outlet 19 from high to ground, and a third drain valve 18 is arranged below the water outlet 19. When the valve 11 to be measured is measured, the first drainage valve 16 and the second drainage valve 17 are opened, the valve 11 to be measured and the third drainage valve 18 are closed, if the valve 11 to be measured is not sealed well, the valve 11 to be measured is sealed to have a water leakage phenomenon, and the leaked water flows into the drainage pipe 14.

This measuring device includes import hose 2, water level monitoring pipe 3, leaks and surveys buret 4, import hose 2 with drainage branch pipe 15 intercommunication, the pipe shaft of water level monitoring pipe 3 is transparent, and it through height-adjustable support 6 vertical setting and through one section violently pipe with import hose 2 intercommunication, wherein, the upper and lower both ends of height-adjustable support 6 are equipped with the fixation clamp, are used for maintaining water level monitoring pipe 3 keeps vertical, and height-adjustable realization form can be that the pipe shaft of support 6 has the long cylinder of multistage difference in diameter to overlap in proper order, then fixes through the set screw of perpendicular to pipe shaft axle center, and height-adjustable support 6 is adaptable to height-different water level monitoring pipe 3 to be used for delivery port 19 of multiple height. The water level monitoring pipe 3 with be provided with second measurement valve 21 on the pipeline of import hose 2 intercommunication, the survey buret 4 of leaking with import hose 2 intercommunication just the water inlet of surveying buret 4 of leaking is provided with first measurement valve 41, the survey buret 4 of leaking still is provided with flow automatic measure element 5. Further, the top end of the water level monitoring pipe 3 is provided with a water inlet funnel 7, and a water outlet of the water inlet funnel 7 is provided with a third measuring valve 71. The top end of the water level monitoring pipe 3 is communicated with a drainage hose 8, and a fourth measuring valve 81 is arranged at the water inlet of the drainage hose 8.

With the present measuring device, it is possible to drain only the downstream pipe 13 but not the drain pipe 14, i.e. by opening the one-way drain valve 16 and the two-way drain valve 17 and closing the three-way drain valve 18. At this time, without knowing the water level condition in the drain pipe 14 in advance, the inlet hose 2 is directly connected to the drain branch pipe 15, the water leakage amount detection valve 9 on the drain branch pipe 15 is opened, the first measurement valve 41 and the third measurement valve 71 are closed, the second measurement valve 21 and the fourth measurement valve 81 are opened, the drain three-way valve 18 is opened by a small opening degree, and the water is slowly drained through the drain hose 8 and the drain three-way valve 18, so that the water level change condition can be observed through the water level monitoring pipe 3 by utilizing the principle of a communicating vessel in the process. When the water level is close to the position of the branch drain pipe 15, the three drain valves 18 and the second measuring valve 21 are closed, and the first measuring valve 41 is opened to measure the water leakage. If the water in the drain pipe 14 is discharged too much or emptied carelessly due to operation, the three draining valves 18, the first measuring valve 41 and the fourth measuring valve 81 are closed, the second measuring valve 21 and the third measuring valve 71 are opened, water is added into the drain pipe 14 to a required water level through the water inlet funnel 7, the water level change condition is observed through the water level monitoring pipe 3 in the process, then the second measuring valve 21 is closed, and the first measuring valve 41 is opened to perform downstream sealing water leakage measurement through an automatic measuring element.

The embodiment also provides another measuring method using the water inlet funnel 7, which can drain the downstream pipeline 13 and the water outlet pipe 14, open the first water outlet valve 16 and the second water outlet valve 17, close the valve 11 to be measured and the third water outlet valve 18, add water through the water inlet funnel 7 to make the pipeline between the water outlet 19 and the third water outlet valve 18 full of water, if the valve 11 to be measured is not sealed well, the valve 11 to be measured is sealed to have water leakage, the leaked water can overflow through the water outlet branch pipe 15, the water leakage situation can be known by observing the water level situation of the water level monitoring pipe 3, and then the water leakage measurement is implemented.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (5)

1. A valve seal leakage measuring device is used for measuring the valve seal condition of a pipeline (1) to be measured, the pipeline (1) to be measured comprises at least one water outlet (19), the pipeline (1) to be measured comprises at least one valve (11) to be measured at the upstream of the water outlet, and the pipeline (1) to be measured comprises at least one drain valve at the downstream of the water outlet, and is characterized in that the measuring device comprises an inlet hose (2), a water level monitoring pipe (3) with a transparent pipe body and a water leakage measuring pipe (4); import hose (2) with the delivery port intercommunication, water level monitoring pipe (3) vertical setting and with import hose (2) intercommunication, water level monitoring pipe (3) with be provided with second measurement valve (21) on the pipeline of import hose (2) intercommunication, leak survey buret (4) with import hose (2) intercommunication just the water inlet of surveying buret (4) of leaking is provided with first measurement valve (41), it still is provided with flow automatic measure element (5) to leak survey buret (4).

2. Valve seal leakage measuring device according to claim 1, further comprising a height adjustable stand (6), said stand (6) being adapted to maintain said water level monitoring tube (3) vertical.

3. The valve seal leakage measuring device of claim 1, wherein the top end of the water level monitoring pipe (3) is provided with a water inlet funnel (7), and the water outlet of the water inlet funnel (7) is provided with a third measuring valve (71).

4. The valve seal water leakage measuring device according to claim 1, wherein the top end of the water level monitoring pipe (3) is communicated with a drainage hose (8), and a fourth measuring valve (81) is arranged at the water inlet of the drainage hose (8).

5. The valve seal leakage measuring device according to claim 1, wherein the automatic flow measuring element (5) comprises any one of an electromagnetic flow meter, a turbine flow meter, and an ultrasonic flow meter.

Images