Automatic water filling system for instrument

Abstract

The utility model discloses an automatic instrument water filling system which comprises a water tank, a pressure pump, a conveying pipeline, an electric control valve and a controller, a water inlet of the conveying pipeline is communicated with the water tank, a water outlet of the conveying pipeline is communicated with an instrument water filling device, and the pressure pump is arranged on the conveying pipeline and used for providing power for water in the conveying pipeline. The electric adjusting valve is arranged on the conveying pipeline and used for adjusting the flow of water, the pressure pump and the electric adjusting valve are both electrically connected with the controller, and the controller can control opening and closing of the pressure pump and can control the opening degree of the electric adjusting valve at the same time. Compared with the prior art, the automatic water filling system for the instrument not only can realize automatic water filling, save time and improve the maintenance efficiency, but also can accurately control the water injection rate.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear power, in particular to an automatic water filling system for instruments. Background Technique

[0002] Before the maintenance of the process system, it is necessary to drain the water and other media in the relevant instrument tanks and instrument pipes. When conducting tests such as the operation tests of water level gauges and water level switch instruments and the operation of base-mounted control valves during the maintenance process, it is necessary to manually fill water into the instrument tanks. After the system is on line, it is necessary to refill water and exhaust air in the instrument tanks and instrument pipes again to ensure the accuracy of pressure and flow measurement of the instruments.

[0003] During the current maintenance, the water filling of instrument tanks and instrument pipes is realized by the most primitive manual pressure boosting. The water filling speed is slow, the pressure boosting work of large-capacity instrument tanks and extra-long instrument pipes on site takes a long time, and a lot of manpower is invested.

[0004] Therefore, how to save time, improve work efficiency, and accurately control the water injection volume at the same time is a technical problem that needs to be solved urgently by those skilled in the art. Content of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide an automatic water filling system for instruments, which can save time, improve work efficiency, and accurately control the water injection volume at the same time.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An automatic water filling system for instruments, including a water tank, a pressure pump, a delivery pipeline, an electric control valve and a controller. The water inlet of the delivery pipeline is communicated with the water tank, and the water outlet of the delivery pipeline is communicated with an instrument water filling device;

[0008] The pressure pump is arranged on the delivery pipeline and used to provide power for the water in the delivery pipeline;

[0009] The electric control valve is arranged on the delivery pipeline and used to adjust the water flow;

[0010] Both the pressure pump and the electric control valve are electrically connected to the controller.

[0011] Optionally, it further includes a liquid level detection switch. The liquid level detection switch is arranged in the water tank and used to judge the water level height in the instrument water filling device by detecting the water level height in the water tank.

[0012] Optionally, the delivery pipeline includes a first water inlet pipeline, a second water inlet pipeline and a water outlet pipeline. The first water inlet pipeline and the second water inlet pipeline are in parallel and are respectively connected in series with the water outlet pipeline.

[0013] Optionally, a first isolation valve and a manual pressure boosting device are further provided on the first water inlet pipeline, and a check valve and the pressure pump are further provided on the second water inlet pipeline.

[0014] Optionally, a first filter is provided on the first water inlet pipeline, and a second filter is provided on the second water inlet pipeline.

[0015] Optionally, a pressure sensor, a first pressure gauge and a second pressure gauge are further provided on the water outlet pipeline. The first pressure gauge is arranged upstream of the electric control valve, and the second pressure gauge is arranged downstream of the electric control valve.

[0016] Optionally, an outlet branch is further included. The outlet branch is communicated with the water outlet pipeline, and a manual bypass valve is provided on the outlet branch.

[0017] Optionally, a second isolation valve and a third isolation valve are further included. The second isolation valve is arranged close to the electric control valve, and the third isolation valve is arranged close to the outlet end of the water outlet pipeline.

[0018] Optionally, a battery pack is further included. A power interface is provided on the battery pack, and the battery pack is connected to a power adapter through the power interface.

[0019] Optionally, a controller and a display panel are further included. A switch, a target adjustment knob and a speed adjustment knob are further provided on the display panel.

[0020] It can be seen from the above technical solutions that when the instrument water filling device needs to be filled with water, first the controller controls the pressure pump to start. Under the action of the pressure pump, the water in the water tank enters the instrument water filling device through the conveying pipeline. At the same time, the controller controls the opening degree of the electric control valve, so as to realize the control of the water injection volume in the instrument water filling device.

[0021] Compared with the prior art, the instrument automatic water filling system disclosed in the embodiment of the present utility model can not only realize automatic water filling, save time and improve the maintenance efficiency, but also accurately control the water injection volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following briefly introduces the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0023] Figure 1 It is a structural diagram of the instrument automatic water filling system disclosed in the embodiment of the present utility model;

[0024] Figure 2 This is the schematic diagram of the automatic water filling system for the instrument disclosed in the embodiments of the present utility model.

[0025] Reference numerals:

[0026] 100, water tank; 101, water level detection device; 102, drain port; 200, first water inlet pipeline; 201, first filter; 202, first isolation valve, 203, manual pressure boosting device; 300, second water inlet pipeline; 301, second filter; 302, check valve; 303, pressure pump; 400, water outlet pipeline; 401, first pressure gauge; 402, electric control valve; 403, second isolation valve; 404, second pressure gauge; 405, pressure sensor; 406, third isolation valve; 500, water outlet branch; 501, manual bypass valve; 600, battery pack; 601, power supply interface; 602, battery adapter; 700, instrument water filling device; 800, display panel; 801, switch, 802, target adjustment knob; 803, speed adjustment knob. Detailed implementation manners

[0027] In view of this, the core of the present utility model is to provide an automatic water filling system for an instrument, which can not only save time and improve the maintenance efficiency, but also accurately control the water injection volume.

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model. Please refer to Figures 1 to 2 .

[0029] The automatic water filling system for an instrument disclosed in the embodiments of the present utility model includes a water tank 100, a pressure pump 302, a conveying pipeline, an electric control valve 402 and a controller. The water inlet of the conveying pipeline is communicated with the water tank 100, and the water outlet of the conveying pipeline is communicated with the instrument water filling device 700. The pressure pump 302 is arranged on the conveying pipeline and is used to provide power for the water in the conveying pipeline. The electric control valve 402 is arranged on the conveying pipeline and is used to adjust the water flow rate. Among them, both the pressure pump 303 and the electric control valve 402 are electrically connected to the controller. The controller can control the opening and closing of the pressure pump 303 and can also control the opening degree of the electric control valve 402.

[0030] When it is necessary to fill water into the instrument water filling device 700, first, the controller controls the pressure pump 302 to start. Under the action of the pressure pump 302, the water in the water tank 100 enters the instrument water filling device 700 through the delivery pipeline. At the same time, the controller controls the opening degree of the electric control valve 402, so as to control the water injection volume in the instrument water filling device 700.

[0031] Compared with the prior art, the instrument automatic water filling system disclosed in the embodiment of the present utility model can not only realize automatic water filling, save time and improve the maintenance efficiency, but also accurately control the water injection volume.

[0032] Among them, the lift of the pressure pump 302 is 20 meters, and the flow rate is 0.2 - 1.0 m 3 / h.

[0033] As a further embodiment, the instrument automatic water filling system disclosed in the embodiment of the present utility model further includes a liquid level detection switch. Among them, the liquid level detection switch is arranged in the water tank 100, and judges the water level height in the instrument water filling device 700 by detecting the water level height in the water tank 100.

[0034] It should be noted that when the liquid level detection switch 801 detects that the water level in the water tank 100 is lower than the preset height, it can transmit a signal to the controller, and the controller controls the pressure pump 303 to stop running with a delay.

[0035] It should be noted that the outer shell of the water tank 100 is made of wear-resistant material to prevent water leakage caused by collision.

[0036] In addition, a drain port 102 is arranged at the bottom of the water tank 100, and the residual water inside can be emptied through the drain port 102 when the water tank 100 is not working.

[0037] It should be further noted that the delivery pipeline disclosed in the embodiment of the present utility model includes a first water inlet pipeline 200, a second water inlet pipeline 300 and a water outlet pipeline 400. The first water inlet pipeline 200 and the second water inlet pipeline 300 are in parallel and are respectively connected in series with the water outlet pipeline 400.

[0038] Among them, a first isolation valve 202 and a manual pressure testing device 203 are arranged on the first water inlet pipeline 200, and a check valve 302 and a pressure pump 302 are further arranged on the second water inlet pipeline 300.

[0039] Normally, the first isolation valve 202 is in a closed state. When the pressure pump 302 is started, the water in the water tank 100 can enter the water outlet pipeline 400 from the second water inlet pipeline 300, and then enter the instrument water filling device 700.

[0040] When equipment such as the pressure pump 302 is damaged or a ultra-small flow rate is required, the first isolation valve 202 can be opened, and the water in the water tank 100 can be manually pressurized through the manual pressurizing device 203 to the first water inlet pipeline 200, and then enter the instrument water filling device 700 through the water outlet pipeline 400.

[0041] In order to keep the water entering the instrument water filling device 700 at a certain cleanliness level, a first filter 201 is provided on the first water inlet pipeline 200 disclosed in the embodiment of the present invention, and a second filter 301 is provided on the second water inlet pipeline 300.

[0042] As a further embodiment, a pressure sensor 405, a first pressure gauge 401 and a second pressure gauge 404 are further provided on the water outlet pipeline 400 disclosed in the embodiment of the present invention. Among them, the first pressure gauge 401 is arranged upstream of the electric control valve 402, and the second pressure gauge 404 is arranged downstream of the electric control valve 402.

[0043] Among them, the pressure sensor 405 is arranged on the water outlet pipeline 400. The pressure sensor 405 is a high-precision pressure sensor, and the pressure of the water on the water outlet pipeline 400 can be detected through the pressure sensor 405.

[0044] It should be noted that the first pressure gauge 401 can detect the pressure of the water before entering the electric control valve 402, and the second pressure gauge 404 can detect the pressure of the water flowing out from the electric control valve 402.

[0045] Among them, the pressures of the first pressure gauge 401 and the second pressure gauge 404 are 0 - 2.0 bar, and the allowable error is less than 0.4 KPa.

[0046] As a further embodiment, the instrument automatic water filling system disclosed in the embodiment of the present invention further includes a water outlet branch 500. Among them, the water outlet branch 500 is communicated with the water outlet pipeline 400, and a manual bypass valve 501 is provided on the water outlet branch 500.

[0047] When the electric control valve 402 fails or other situations occur, the manual bypass valve 501 can be opened so that the water can enter the instrument water filling device 700 through the water outlet branch 500. Among them, the manual bypass valve 501 can also adjust the water flow rate.

[0048] As a further embodiment, the instrument automatic water filling system disclosed in the embodiment of the present invention further includes a second isolation valve 403 and a third isolation valve 406. Among them, the second isolation valve 403 is arranged close to the electric control valve 402, and the third isolation valve 406 is arranged close to the outlet end of the water outlet pipeline 400.

[0049] When conducting the sealing test of the instrument water filling device 700, after filling the instrument water filling device 700 with water and reaching a certain pressure, close the second isolation valve 403 and observe the pressure drop situation, so that the sealing performance of the instrument water filling device 700 can be known through the value of the pressure sensor 405.

[0050] After the instrument water filling device 700 is filled with water and reaches a certain pressure, the second isolation valve 403 can be closed, and the pressure drop situation can be observed through the pressure sensor 405.

[0051] As a further embodiment, the instrument automatic water filling system disclosed in the embodiment of the present invention further includes a battery pack 600. Among them, a power interface 601 is provided on the battery pack 600, and the battery pack 600 is connected to a power adapter 602 through the power interface 601.

[0052] Among them, the battery power can at least meet the full-load operation for 1H, and it can be self-equipped with an external power supply. After the battery power is exhausted, it can be powered by an external power supply (220VAC).

[0053] Among them, the instrument automatic water filling system disclosed in the embodiment of the present invention is self-equipped with various interfaces, and can realize various on-site water filling tanks, pressure gauge interfaces, etc.

[0054] It should be noted that the instrument automatic water filling system disclosed in the embodiment of the present invention further includes a controller and a display panel 800. A switch 801, a target adjustment knob 802, and a speed adjustment knob 803 are also provided on the display panel 800.

[0055] Among them, the controller can be electrically connected to the pressure pump 302, the electric control valve 402, the first pressure gauge 401, the second pressure gauge 404, etc.

[0056] Specifically, the instrument automatic water filling system can be controlled by operating the switch 801, the target adjustment knob 802, the speed adjustment knob 803, etc. on the display panel 800.

[0057] Among them, a 24V external power supply, a contact monitoring, and a 4-20mA signal monitoring port are also provided on the display panel 800, and the operation status of on-site equipment can be detected.

[0058] It should be noted that a drain valve is also provided at the bottom of the water tank 100 of the instrument automatic water filling system disclosed in the embodiment of the present invention, and the water in the water tank 100 can be drained.

[0059] Among them, the instrument water filling device 700 can be an instrument tank or an instrument pipe.

[0060] It should be noted that the instrument automatic water filling system disclosed in the embodiment of the present invention is also provided with rollers, which can roll on a smooth road surface, and the overall equipment is small and portable.

[0061] Finally, it should also be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or device.

[0062] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference may be made to each other.

[0063] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic water filling system for an instrument, characterized in that: It includes a water tank, a pressure pump, a delivery pipeline, an electric regulating valve and a controller, wherein the water inlet of the delivery pipeline is connected to the water tank, and the water outlet of the delivery pipeline is connected to the instrument water filling device; The pressure pump is arranged on the delivery pipeline and is used to provide power for the water in the delivery pipeline; The electric regulating valve is arranged on the delivery pipeline and is used to adjust the flow rate of water; The pressure pump and the electric regulating valve are both electrically connected to the controller.

2. The automatic water filling system for instruments according to claim 1, characterized in that: It also includes a liquid level detection switch, which is arranged in the water tank and determines the water level in the meter water filling device by detecting the water level in the water tank.

3. The automatic water filling system for instruments according to claim 1, characterized in that: The delivery pipeline includes a first water inlet pipeline, a second water inlet pipeline and a water outlet pipeline. The first water inlet pipeline and the second water inlet pipeline are connected in parallel and are respectively connected in series with the water outlet pipeline.

4. The automatic water filling system for meters according to claim 3, characterized in that: The first water inlet pipeline is also provided with a first isolation valve and a manual pressure-pressing device, and the second water inlet pipeline is also provided with a check valve and the pressure pump.

5. The automatic water filling system for meters according to claim 3, characterized in that: The first water inlet pipeline is provided with a first filter, and the second water inlet pipeline is provided with a second filter.

6. The automatic water filling system for meters according to claim 3, characterized in that: The water outlet pipeline is also provided with a pressure sensor, a first pressure gauge and a second pressure gauge. The first pressure gauge is provided upstream of the electric regulating valve, and the second pressure gauge is provided downstream of the electric regulating valve.

7. The automatic water filling system for meters according to claim 3, characterized in that: It also includes a water outlet branch, which is connected to the water outlet pipeline and is provided with a manual bypass valve.

8. The automatic water filling system for meters according to claim 3, characterized in that: It also includes a second isolation valve and a third isolation valve. The second isolation valve is arranged close to the electric regulating valve, and the third isolation valve is arranged close to the outlet end of the water outlet pipeline.

9. The automatic water filling system for meters according to claim 1, characterized in that: It also includes a battery pack, which is provided with a power interface, and the battery pack is connected to a power adapter via the power interface.

10. The automatic water filling system for meters according to claim 1, characterized in that: It also includes a controller and a display panel, and the display panel is also provided with a switch, a target adjustment knob and a speed adjustment knob.

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