Automatic water pressure experiment device

Abstract

The utility model discloses an automatic water pressure experiment device, which is used for detecting the pressure of a pipeline system and comprises a pressure test table, the pressure test table comprises a pressure test cavity communicated with the pipeline system, the pressure test cavity is communicated with a pressure gauge and a pressure test pump, and the pressure test pump is communicated with a pressure gauge. The pressure detection switch is used for detecting the set pressure of the pressure test cavity, the control module is used for controlling the pressure test pump to work, and the control module is used for controlling the working state of the pressure test pump according to a detection signal of the pressure detection switch. By means of automatic equipment, pressure boosting is automatically stopped after the pressure of a pipeline system rises to set pressure, all-weather uninterrupted pressure boosting can be achieved, a specially-assigned person does not need to watch, after the device is installed, the action pressure of the pressure switch is set before a pump of the system is started for pressure boosting, and operation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of water pressure experiments, in particular to an automatic water pressure experiment device. Background Art

[0002] Hydraulic pressure testing of pipeline systems, especially large ones, requires a significant amount of time to complete. Once filled with water, raising the pressure to the design pressure takes considerable time. Traditionally, dedicated personnel monitor the pressure test platform. When workers rest, the pressure test pumps also rest. This nine-hour daily operating schedule not only consumes manpower but also delays progress. Overtime is limited to 9 p.m. at most, but night shifts are often inconvenient, as the pressure test pumps cannot operate from 9 p.m. until the next working day. This hinders progress and ties up human resources. Utility Model Content

[0003] In order to solve the problem that large pipeline systems require personnel supervision, the utility model proposes an automatic water pressure test device, which uses automated equipment to automatically stop increasing the pressure of the pipeline system after it reaches a predetermined pressure. The pressure can be increased uninterruptedly around the clock without the need for special personnel supervision.

[0004] The technical solution adopted by the present invention is to design an automatic water pressure testing device for detecting the pressure of a pipeline system, including a pressure test platform, the pressure test platform including a pressure test chamber connected to the pipeline system, the pressure test chamber connected to a pressure gauge, the pressure test chamber connected to a pressure test pump, and also including a pressure detection switch for detecting the set pressure of the pressure test chamber and a control module for controlling the operation of the pressure test pump, the control module controlling the working state of the pressure test pump according to the detection signal of the pressure detection switch.

[0005] In some embodiments, the device further includes a liquid supply tank for providing liquid to the pressure test pump and a liquid level detection sensor for detecting the liquid level of the liquid supply tank. The control module controls the working state of the pressure test pump according to the detection signal of the liquid level detection sensor.

[0006] In certain embodiments, the pressure test chamber is connected to a safety valve.

[0007] In some embodiments, a deformation detector for detecting pipe deformation of the pipe system is further included.

[0008] In some embodiments, the deformation detector includes an annular bracket sleeved on the pipe, and several telescopic rods are distributed circumferentially on the annular bracket. The telescopic rods and the annular bracket slide together in the radial direction. The two ends of the telescopic rod are respectively a first end and a second end. The first end of the telescopic rod supports the outer wall of the pipe, and a tension sensor is connected between the second ends of adjacent telescopic rods.

[0009] In certain embodiments, the annular stent is a circular ring-shaped stent.

[0010] In some embodiments, the first end of the telescopic rod is provided with a roller for supporting the outer wall of the pipe.

[0011] In some embodiments, the rotating axis of the roller is perpendicular to the length direction of the pipe, so that the roller can only roll along the length direction of the pipe but cannot roll along the circumference of the pipe.

[0012] In some embodiments, the annular bracket is provided with a hole for the telescopic rod to slide through.

[0013] In some embodiments, a return spring is supported between the second end of the telescopic rod and the annular bracket.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The utility model uses automated equipment to automatically stop increasing pressure after the pipeline system pressure reaches a set pressure. It can increase pressure uninterruptedly around the clock without the need for special personnel to monitor it. After the device is installed, the operating pressure of the pressure switch can be set before the system starts pumping to increase pressure. The operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is described in detail below with reference to specific embodiments and accompanying drawings. To illustrate details and facilitate understanding of its principles, the drawings are not necessarily drawn to scale, and similar reference numerals may describe similar components in different views. The accompanying drawings generally illustrate the embodiments discussed herein by way of example and not limitation. Among them:

[0017] Figure 1 It is a system diagram of the automatic water pressure test device.

[0018] Figure 2 It is a three-dimensional schematic diagram of the automatic water pressure test device.

[0019] Figure 3 is a schematic diagram of a deformation detector.

[0020] In the figure, 1. pressure test chamber; 2. pressure gauge; 3. pressure test pump; 4. pressure detection switch; 5. control module; 6. liquid supply tank; 7. liquid level detection sensor; 8. safety valve; 9. piping system; 10. pipeline; 11. ring bracket; 12. telescopic rod; 13. tension sensor; 14. roller; 15. reset spring; 16. power supply; 17. check valve; 18. gate valve. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments, and the following embodiments do not limit the utility model involved in the claims. In addition, not all combinations of features described in the embodiments are necessarily required for the solution of the utility model.

[0022] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments. Example

[0023] like Figure 1 、 2 As shown, an automatic water pressure test device is used to detect the pressure of a pipeline system 9, including a pressure test platform, the pressure test platform including a pressure test chamber 1 connected to the pipeline system, the pressure test chamber connected to a pressure gauge 2, the pressure test chamber connected to a pressure test pump 3, and also including a pressure detection switch 4 for detecting the set pressure of the pressure test chamber and a control module 5 for controlling the operation of the pressure test pump. The control module controls the working state of the pressure test pump according to the detection signal of the pressure detection switch. It also includes a liquid supply tank 6 for providing liquid to the pressure test pump and a liquid level detection sensor 7 for detecting the liquid level of the liquid supply tank. The control module controls the working state of the pressure test pump according to the detection signal of the liquid level detection sensor. The pressure test chamber is connected to a safety valve 8. The liquid level detection sensor is a liquid level switch, and the control module is connected to a power supply 16.

[0024] The power supply is connected to the pressure test pump through a control module, which receives signals from a pressure detection switch and a liquid level switch. The pressure detection switch is installed on a conventional pressure test bench and is set to the design pressure of the pipeline system. When the system pressure falls below the set pressure of the pressure detection switch, the switch is closed, and the pressure test pump operates normally. When the pressure reaches the set value, the switch opens, and the control module disconnects the power supply to the pressure test pump, thus achieving automatic control. The operating pressure of the pressure detection switch is adjustable according to the needs of the pipeline system to accommodate pressure tests of different pipeline systems. A liquid level switch is installed at the water source and is set to 20 cm above the water inlet of the pressure test pump. When the water level at the water source falls below 20 cm below the water inlet of the pressure test pump, the level switch opens, and the control module disconnects the power supply to the pressure test pump. When the water level at the water source rises above 20 cm above the water inlet of the pressure test pump, the level switch closes. A check valve 17 and a gate valve 18 are installed between the pressure test chamber and the pressure test pump to prevent water from flowing back into the pipeline system when the power is disconnected. For the safety of the device, a safety valve is added to the pressure test chamber, and the rated pressure is 1.1 times the operating pressure of the pressure detection switch.

[0025] Specifically, when the device is in use, the pipe system is filled with water, the valve below the pressure detection switch is open, the pressure detection switch is in a closed state and the set value is the design pressure of the pipe system; the valve below the safety valve is open, and the rated pressure of the safety valve is 1.1 times the set value of the pressure detection switch; the power supply is connected to the pressure test pump through the control module, and the pressure test pump is turned on. The pressure test pump works uninterruptedly around the clock, waiting for the pressure detection switch to operate; after the pipe system reaches the design pressure, the pressure detection switch transmits a signal to the control module, the control module is disconnected, the pressure test pump stops working, and the pipe system no longer increases pressure; if the pressure test pump stops working and the pipe system is found to have stopped working, After the system reaches the design pressure, close the valve below the pressure detection switch, check the pipeline system, and confirm that the pipeline system does not reduce pressure, has no leakage, and is not deformed; after confirming that the pipeline system is correct, adjust the pressure detection switch action pressure to the pipeline system test pressure, close the valve below the safety valve, open the valve below the pressure detection switch, and start the pump. After the pipeline system has a certain pressure, the pressure increase speed will be much faster, and the pipeline system should not be under the test pressure for too long, so a dedicated person should be arranged to watch from the design pressure to the test pressure stage; after increasing the pressure to the test pressure, maintain the pressure for 10 minutes without any abnormality, which means that the quality of the pipeline system is good.

[0026] like Figure 3 As shown, this embodiment also includes a deformation detector for detecting deformation of a pipe 10 in the piping system. The deformation detector comprises an annular bracket 11 that fits over the pipe. Eight telescopic rods 12 are evenly distributed around the annular bracket. The telescopic rods slide radially with the annular bracket. The telescopic rods have first and second ends, with the first ends supporting the outer wall of the pipe. Tension sensors 13 are connected between the second ends of adjacent telescopic rods. In this embodiment, the annular bracket is a circular ring. Rollers 14 are provided at the first ends of the telescopic rods to support the outer wall of the pipe. The rollers' rotating axes are perpendicular to the longitudinal direction of the pipe, allowing them to roll only along the length of the pipe and not along its circumference. The annular bracket is provided with holes for the telescopic rods to slide through. A return spring 15 is supported between the second ends of the telescopic rods and the annular bracket. The tension sensor is an elastic deformation tension sensor, such as a spring tension sensor.

[0027] If the pipeline is deformed, for example, the portion corresponding to the telescopic rod expands, the telescopic rod will extend radially outward, thereby increasing the distance between the second ends of two adjacent telescopic rods. This will cause the tension sensor to be subjected to a greater tension. A greater tension indicates a greater deformation, thereby enabling detection of pipeline deformation. These tension sensors can be connected to remote equipment via electrical signals, thereby realizing remote automatic monitoring.

[0028] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0029] Although some terms are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention. The execution order of actions, steps, etc. in the devices and methods shown in the specification and drawings can be implemented in any order as long as there is no special explicit limitation on the order and as long as the output of the previous processing is not used in the subsequent processing. Similar sequential terms (for example, "first", "next", "secondly", "again", "then", etc.) used for the convenience of description do not mean that they must be implemented in such an order.

[0030] It should be understood by those skilled in the art that all directional references (for example, above, below, upward, up, downward, down, top, bottom, left, right, vertical, horizontal, etc.) are used descriptively in the drawings to facilitate the reader's understanding, and do not represent limitations (for example, on position, orientation or use, etc.) on the scope of the present invention as defined by the appended claims. They are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. The directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0031] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0032] In addition, some vague terms (e.g., "substantially," "certainly," "substantially," etc.) may refer to slight inaccuracies or deviations in conditions, quantities, values, or dimensions, some of which are within manufacturing variations or tolerances. It should be noted that the use of terms such as "first" and "second" to define components is solely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meanings and should not be construed as limiting the scope of protection of this application.

Claims

1. An automatic water pressure test device for detecting the pressure of a pipeline system, comprising a pressure test platform, the pressure test platform comprising a pressure test chamber connected to the pipeline system, the pressure test chamber connected to a pressure gauge, characterized in that: The pressure test chamber is connected to a pressure test pump and also includes a pressure detection switch for detecting the set pressure of the pressure test chamber and a control module for controlling the operation of the pressure test pump. The control module controls the working state of the pressure test pump according to the detection signal of the pressure detection switch; and also includes a deformation detector for detecting the pipeline deformation of the pipeline system.

2. The automatic water pressure testing device according to claim 1, characterized in that: It also includes a liquid supply tank for providing liquid to the pressure test pump and a liquid level detection sensor for detecting the liquid level of the liquid supply tank. The control module controls the working state of the pressure test pump according to the detection signal of the liquid level detection sensor.

3. The automatic water pressure testing device according to claim 1, characterized in that: The pressure test chamber is connected to the safety valve.

4. The automatic water pressure testing device according to claim 1, characterized in that: The deformation detector includes an annular bracket sleeved on the pipe, with several telescopic rods distributed circumferentially on the annular bracket. The telescopic rods slide in conjunction with the annular bracket in the radial direction. The two ends of the telescopic rod are respectively a first end and a second end. The first end of the telescopic rod supports the outer wall of the pipe, and a tension sensor is connected between the second ends of adjacent telescopic rods.

5. The automatic water pressure testing device according to claim 4, characterized in that: The annular bracket is a circular ring bracket.

6. The automatic water pressure testing device according to claim 4, characterized in that: The first end of the telescopic rod is provided with a roller for supporting the outer wall of the pipeline.

7. The automatic water pressure testing device according to claim 6, characterized in that: The rotating shaft of the roller is perpendicular to the length direction of the pipeline, so that the roller can only roll along the length direction of the pipeline but cannot roll along the circumference of the pipeline.

8. The automatic water pressure testing device according to claim 4, characterized in that: The annular bracket is provided with a hole for the telescopic rod to slide through.

9. The automatic water pressure testing device according to claim 8, characterized in that: A return spring is supported between the second end of the telescopic rod and the annular bracket.

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