High-pressure evaporator detection device convenient for leakage detection

By designing a high-pressure evaporator detection device that facilitates leak detection, and using an air pump to pressurize the gas and observe the bubbles to determine the leak location, the problem of existing devices being complex in structure, high in cost, and low in versatility is solved, achieving rapid and simple leak detection and location.

CN224095339UActive Publication Date: 2026-04-07ZHEJIANG NINGSONG THERMAL BOILER EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-27
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing high-pressure evaporator leak detection devices are complex in structure, expensive, and have low versatility, making it difficult to quickly and accurately locate leaks.

Method used

A high-pressure evaporator detection device for easy leak detection was designed, comprising a base plate, a water tank, a vertical plate, a slide bar, a cross bar, an air inlet assembly, and a sealing assembly. The device uses an air pump to pressurize the evaporator and observes the bubbles to determine the location of the leak, adapting to the different positions of the inlet and outlet ends of different evaporators.

Benefits of technology

It achieves simple structure, convenient use and fast leak detection, improves the versatility of the device, and can quickly determine whether the evaporator is leaking and the location of the leak.

✦ Generated by Eureka AI based on patent content.

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Abstract

The high-pressure evaporator detection device comprises a bottom plate, a water tank is fixed to the upper surface of the bottom plate, a vertical plate is fixed to the side edge of the upper surface of the bottom plate, a vertical sliding groove is formed in the side, close to the water tank, of the vertical plate, a sliding rod is connected into the sliding groove in a sliding mode, and the sliding rod is fixed to the bottom plate. A transverse rod is fixed to the end, located outside the sliding groove, of the sliding rod, and sliding sleeves are slidably connected to the surfaces of the two ends of the transverse rod. According to the utility model, the bottom plate, the water tank, the vertical plate, the sliding rod, the cross rod, the air inlet assembly, the plugging assembly, the air pump and the screw rod are arranged, the evaporator to be tested is placed in the water tank, the screw rod is utilized to drive the sliding rod and the cross rod to descend, so that the air inlet assembly and the plugging assembly respectively abut against the inlet end and the outlet end of the evaporator, and then the air pump is started to inflate the inside of the evaporator; whether bubbles are generated on the surface of the evaporator is observed, so that whether the evaporator leaks or not and the leakage position are quickly judged, and the device is simple in structure and convenient to use.
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Description

Technical Field

[0001] This utility model relates to the field of evaporator detection technology, and in particular to a high-pressure evaporator detection device that facilitates leak detection. Background Technology

[0002] High-pressure evaporator leak detection is a key technology for ensuring the safe operation of industrial equipment, primarily used in high-pressure evaporation systems in industries such as nuclear power plants, chemicals, and power generation. Its core objective is to promptly detect leaks in internal pipes or seals of the evaporator, preventing media leakage that could lead to equipment damage, efficiency reduction, or safety accidents. Various detection methods are employed, including acoustic detection (capturing high-frequency signals generated by leaks using ultrasound), chemical tracers (injecting inert gases or fluorescent agents and locating leak points by monitoring concentration changes), pressure decay testing, and infrared thermal imaging.

[0003] Currently, there are many ways to detect leaks in high-pressure evaporators, but the aforementioned detection devices have relatively complex structures and high operating costs. They cannot quickly detect leaks in evaporators or the location of leaks, and their versatility is low when detecting different types of evaporators. Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-pressure evaporator detection device that facilitates leak detection.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a high-pressure evaporator detection device for easy leak detection, comprising a base plate, a water tank fixed on the upper surface of the base plate, and a vertical plate fixed on the side of the upper surface of the base plate. A vertical groove is provided on the side of the vertical plate near the water tank. A sliding rod is slidably connected inside the groove, and a crossbar is fixed at one end of the sliding rod outside the groove. Sliding sleeves are slidably connected to both ends of the crossbar. An air inlet assembly and a sealing assembly are respectively fixed to the lower surfaces of the two sliding sleeves. An air pump is fixed on the upper surface of the vertical plate. A hose is fixedly connected between the air pump and the air inlet assembly. A lead screw is rotatably connected inside the groove through a bearing. The lead screw passes through the sliding rod and is threadedly connected to the sliding rod. A handwheel is fixedly connected to the top of the lead screw.

[0006] Furthermore, an inlet pipe and a drain pipe are fixedly connected to the top and bottom of the side wall of the water tank, respectively.

[0007] Furthermore, the sidewall of the sliding sleeve is connected to a first fastening bolt via a threaded connection.

[0008] Furthermore, the air intake assembly includes an air intake pipe fixed to the lower surface of the sliding sleeve, and a horn cover is fixed to the bottom end of the air intake pipe. A rubber pad is fixed to the inner side wall of the horn cover, and the two ends of the hose are fixedly connected to the air intake pipe and the air pump, respectively.

[0009] Furthermore, the sealing assembly includes a vertical tube fixed to the lower surface of the sliding sleeve, a vertical rod slidably connected inside the bottom end of the vertical tube, and a pressure plate fixed to the bottom end of the vertical rod. A spring is fixedly connected to the top end of the vertical rod and the inner top wall of the vertical tube.

[0010] Furthermore, a second fastening bolt is connected through the side of the handwheel and rotated via a thread.

[0011] The beneficial effects of this utility model are:

[0012] 1. In use, this utility model is a high-pressure evaporator detection device that facilitates leak detection. It is equipped with a base plate, a water tank, a vertical plate, a sliding rod, a horizontal rod, an air inlet assembly, a sealing assembly, an air pump, and a lead screw. The evaporator to be tested is placed in the water tank. The lead screw drives the sliding rod and the horizontal rod to descend, so that the air inlet assembly and the sealing assembly abut against the inlet and outlet ends of the evaporator, respectively. Then, the air pump is started to fill the evaporator with air. Observe whether bubbles are generated on the surface of the evaporator, so as to quickly determine whether the evaporator is leaking and the location of the leak. The device has a simple structure and is easy to use.

[0013] 2. When in use, this utility model is a high-pressure evaporator detection device that facilitates leak detection. It is equipped with a crossbar, two sliding sleeves, an air inlet assembly, and a sealing assembly. By moving the two sliding sleeves along the surface of the crossbar, the distance between the air inlet assembly and the sealing assembly can be adjusted, thus making it suitable for evaporators with different inlet and outlet positions and improving versatility. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 : Overall perspective view of this utility model;

[0016] Figure 2 : Overall sectional view of this utility model;

[0017] Figure 3 The present utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 The present utility model Figure 2 Enlarged view of section B in the middle.

[0019] The attached figures are labeled as follows:

[0020] 1. Base plate; 2. Water tank; 21. Water inlet pipe; 22. Drain pipe; 3. Vertical plate; 31. Slide groove; 4. Slide rod; 5. Horizontal bar; 6. Slide sleeve; 61. First fastening bolt; 7. Air intake assembly; 71. Air intake pipe; 72. Horn cover; 8. Sealing assembly; 81. Vertical pipe; 82. Vertical rod; 83. Pressure plate; 84. Spring; 9. Air pump; 10. Hose; 11. Screw; 12. Handwheel; 13. Second fastening bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-4 As shown, a high-pressure evaporator detection device for easy leak detection is disclosed. The device includes a base plate 1, a water tank 2 fixed on the upper surface of the base plate 1, and a vertical plate 3 fixed on the side of the upper surface of the base plate 1. A vertical groove 31 is provided on the side of the vertical plate 3 near the water tank 2. A sliding rod 4 is slidably connected inside the groove 31, and a crossbar 5 is fixed at one end of the sliding rod 4 outside the groove 31. Sliding sleeves 6 are slidably connected to both ends of the crossbar 5. An air inlet assembly 7 and a sealing assembly 8 are fixed to the lower surfaces of the two sliding sleeves 6, respectively. An air pump 9 is fixed to the upper surface of the vertical plate 3. A hose 10 is fixedly connected between the air pump 9 and the air inlet assembly 7. A lead screw 11 is rotatably connected inside the groove 31 through a bearing. The lead screw 11 passes through the sliding rod 4 and is threadedly connected to the sliding rod 4. A handwheel 12 is fixedly connected to the top of the lead screw 11.

[0023] Water inlet pipe 21 and drain pipe 22 are fixedly connected to the top and bottom of the side wall of water tank 2, respectively.

[0024] In this embodiment, valves are provided on both the inlet pipe 21 and the drain pipe 22. The inlet pipe 21 is connected to the tap water pipe, and water can be injected into the water tank 2 through the inlet pipe 21. The water in the water tank 2 can be drained through the drain pipe 22.

[0025] The first fastening bolt 61 is threaded through the side wall of the sliding sleeve 6 and rotated through it.

[0026] Sliding sleeves 6 along the surface of crossbar 5 can adjust the distance between the two sleeves 6, thereby changing the distance between the air intake assembly 7 and the sealing assembly 8, so that the air intake assembly 7 and the sealing assembly 8 can be exactly aligned with the evaporator inlet and outlet.

[0027] The air intake assembly 7 includes an air intake pipe 71 fixed to the lower surface of the sliding sleeve 6, and a horn cover 72 fixed to the bottom end of the air intake pipe 71. A rubber pad is fixed to the inner side wall of the horn cover 72. The two ends of the hose 10 are fixedly connected to the air intake pipe 71 and the air pump 9, respectively.

[0028] After the air pump 9 is started, air is supplied to the air inlet pipe 71 through the hose 10, and the gas then enters the evaporator along the horn cover 72.

[0029] The sealing assembly 8 includes a vertical tube 81 fixed to the lower surface of the sliding sleeve 6. A vertical rod 82 is slidably connected inside the bottom end of the vertical tube 81, and a pressure plate 83 is fixed to the bottom end of the vertical rod 82. A spring 84 is fixedly connected to the top end of the vertical rod 82 and the inner top wall of the vertical tube 81.

[0030] By rotating the screw 11 via the handwheel 12, the screw 11 drives the slide bar 4 to move up or down along the slide groove 31, thereby causing the crossbar 5, the air intake assembly 7, and the sealing assembly 8 to rise or fall. When the crossbar 5 descends, the sealing assembly 8 descends accordingly, and the pressure plate 83 presses against the outlet end of the evaporator, achieving a seal at the outlet end of the evaporator under the extrusion force of the spring 84.

[0031] The handwheel 12 has a second fastening bolt 13 that runs through its side and is connected to it by a threaded rotation. By rotating the handwheel 12 to raise or lower the slide bar 4, tightening the second fastening bolt 13 presses against the upper surface of the vertical plate 3, thereby locking and fixing the handwheel 12.

[0032] Working principle: First, fill water tank 2 with water, then place the evaporator to be tested into water tank 2, ensuring that the inlet and outlet ends of the evaporator are at the top. Then, move the two sliding sleeves 6 to adjust the positions of the air intake assembly 7 and the sealing assembly 8, so that the positions of the air intake assembly 7 and the sealing assembly 8 are directly above the inlet and outlet ends of the evaporator, respectively. Then, turn the handwheel 12 to drive the sliding rod 4 and the crossbar 5 to descend, so that the horn cover 72 and the pressure plate 83 block the inlet and outlet ends of the evaporator, respectively. After tightening the second fastening bolt 13, start the air pump 9 and use the hose 10 to inflate the air intake pipe 71. The gas then enters the evaporator along the horn cover 72. If there is a leak in the evaporator, bubbles will be generated in water tank 2 at that location, thus quickly determining the leak location.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-pressure evaporator detection device for easy leak detection, including a base plate (1), characterized in that: A water tank (2) is fixed on the upper surface of the base plate (1), and a vertical plate (3) is fixed on the side of the upper surface of the base plate (1). A vertical groove (31) is opened on the side of the vertical plate (3) near the water tank (2). A sliding rod (4) is slidably connected inside the groove (31), and a crossbar (5) is fixed at one end of the sliding rod (4) outside the groove (31). Sliding sleeves (6) are slidably connected to both ends of the crossbar (5). An air intake assembly (7) and a sealing assembly (8) are fixed on the lower surfaces of the two sliding sleeves (6), respectively. An air pump (9) is fixed on the upper surface of the vertical plate (3). A hose (10) is fixedly connected between the air pump (9) and the air intake assembly (7). A lead screw (11) is rotatably connected inside the groove (31) through a bearing. The lead screw (11) passes through the sliding rod (4) and is connected to the sliding rod (4) by a thread. A handwheel (12) is fixedly connected to the top of the lead screw (11).

2. The high-pressure evaporator detection device for easy leak detection according to claim 1, characterized in that: The top and bottom of the side wall of the water tank (2) are respectively fixedly connected to an inlet pipe (21) and a drain pipe (22).

3. The high-pressure evaporator detection device for easy leak detection according to claim 1, characterized in that: The sidewall of the sliding sleeve (6) is penetrated and connected to the first fastening bolt (61) by a threaded rotation.

4. The high-pressure evaporator detection device for easy leak detection according to claim 1, characterized in that: The air intake assembly (7) includes an air intake pipe (71) fixed to the lower surface of the sliding sleeve (6), and a horn cover (72) is fixed to the bottom end of the air intake pipe (71). A rubber pad is fixed to the inner side wall of the horn cover (72), and the two ends of the hose (10) are fixedly connected to the air intake pipe (71) and the air pump (9) respectively.

5. A high-pressure evaporator detection device for easy leak detection according to claim 1, characterized in that: The sealing assembly (8) includes a vertical tube (81) fixed to the lower surface of the sliding sleeve (6), a vertical rod (82) is slidably connected inside the bottom end of the vertical tube (81), and a pressure plate (83) is fixed at the bottom end of the vertical rod (82). A spring (84) is fixedly connected to the top end of the vertical rod (82) and the inner top wall of the vertical tube (81).

6. A high-pressure evaporator detection device for easy leak detection according to claim 1, characterized in that: The handwheel (12) is connected to a second fastening bolt (13) through the side and via a threaded rotation.