Portable single-tube pressure testing device for ship condenser

Abstract

The utility model relates to the field of ship repair and maintenance, in particular to a portable single-tube pressure testing device for a ship condenser. Comprising a carrier device, a knocking fastening structure, a pressure conveying structure and a pressure test butt joint. When the device is used for detection, an equipment heat exchange tube body is not damaged, and the device can be reused and is high in reuse rate; the pressure test butt joint is convenient to connect with a device knocking and fastening mechanism and easy to operate, and only the pressure test butt joint of the corresponding size needs to be replaced according to different heat exchange pipe models.

Description

Technical Field

[0001] The utility model relates to the field of ship repair and maintenance, in particular to a portable single-tube pressure testing device for a ship condenser. Background Art

[0002] At present, after the ship heat exchanger is manufactured, delivered, repaired, cleaned and maintained, it is necessary to conduct pressure and pressure maintenance tests on the equipment to define the equipment's set heat exchange efficiency index. Due to its multi-tube structure, the heat exchanger cannot accurately locate the corrosion and damage of a single tube during the pressure test. Therefore, it is necessary to provide a new device that can accurately locate the abnormality of a single tube during the pressure test to solve the above technical problems. Utility Model Content

[0003] Based on the above technical problems, the technical solutions of the utility model to solve the above technical problems are as follows, specifically:

[0004] A portable single-tube pressure test device for a ship condenser, comprising a carrier device, a knocking and fastening structure, a pressure delivery structure and a pressure test joint;

[0005] The carrier device is a columnar structure with a closed lower bottom; an internally connected channel is provided between the side wall and the upper bottom of the carrier device;

[0006] The knocking and fastening structure is arranged at the bottom of the carrier device, and is used to provide a force-carrying surface for the device to avoid directly knocking the carrier device and causing damage to it;

[0007] The pressure delivery structure is a pressure delivery pipeline, one end of which is connected to a pressure supply device, and the other end of which extends from the side wall of the carrier into the channel to the upper bottom;

[0008] The pressure test butt joint is a conical table-like structure, which is sleeved on the upper bottom position of the carrier device, and the lower bottom of the pressure test butt joint is fixedly connected to the carrier device.

[0009] Furthermore, the pressure delivery structure is exposed on the side wall section of the carrier device and is provided with a pressure gauge and a one-way valve in sequence from near to far.

[0010] Furthermore, a pressure source quick connector is provided at the joint between the pressure delivery structure and the pressure supply device.

[0011] Furthermore, the pressure test joint and the knocking fastening structure are connected in a threaded manner, and a sealing foot pad is provided at the connection between the two.

[0012] Furthermore, the pressure test joint is made of copper, the outer wall of the carrier device near the upper bottom is provided with an external thread, the lower bottom of the pressure test joint is provided with a ring, and the inner wall of the ring is provided with an internal thread that matches the external thread of the carrier device.

[0013] Furthermore, a holding mechanism is radially extended on the side wall of the carrier device, and the holding mechanism is a handle, which is used for holding when knocking in the device and knocking the holding mechanism in reverse when taking out the device.

[0014] Furthermore, the condenser single-tube pressure test device also includes a pipe plug, which is adapted to the pressure test joint and is used to plug the other end of the condenser tube to be tested.

[0015] Furthermore, the pipe plug includes a second carrier device, which is cylindrical, with the knocking and fastening structure provided on its lower bottom, the pressure test joint provided on its upper bottom, and the holding mechanism provided on its side wall.

[0016] Furthermore, the pressure test joint coincides with a straight line where the axis of the columnar structure of the carrier device is located.

[0017] This technical solution is a portable device for single-tube rapid pressure test. The device detects whether the heat exchange tube is corroded or damaged after cleaning the heat exchange equipment. It performs pressure and pressure maintenance tests on a single heat exchange tube, and the tooling is portable and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a portable single-tube pressure test device for a ship condenser according to Example 1;

[0019] Figure 2 Schematic diagram of the pipe plug structure of Example 1;

[0020] Figure numerals: carrier device 1, knocking and fastening structure 2, pressure delivery pipeline 3, pressure gauge 31, one-way valve 32, pressure source quick connector 33, pressure test connector 4, holding mechanism 5, second carrier 6, pipe plug 7. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the utility model. In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the utility model.

[0023] In addition, the terms "first", "second" a, b, c, d, e, f, etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the upper base and the lower base are for ease of understanding and not for limitation, unless otherwise clearly and specifically defined. The columnar structure includes an upper base, a lower base and side walls. The conical table-like structure has a cylindrical cone with the same inclination angle and different heights, with the lower height and the higher height overlapping at a fixed point, and the non-intersecting part is a conical table-like structure.

[0024] Example 1

[0025] refer to Figure 1 , This embodiment provides a portable ship condenser single-tube pressure test device, including a carrier device 1, a knocking and fastening structure 2, a pressure delivery structure and a pressure test joint 4;

[0026] The carrier device 1 is a columnar structure with a closed lower bottom. An internally connected channel is provided between the side wall and the upper bottom of the carrier device 1 , and the direction of the channel can be adjusted according to the needs.

[0027] Yes; the knocking and fastening structure 2 is arranged at the bottom of the carrier device 1, which is used to provide a force surface for the device to avoid directly knocking the carrier device and causing damage to it. Usually, a plate with a radius larger than the carrier device 1 is used as the knocking surface; the pressure delivery structure is a pressure delivery pipeline 3, one end of which is connected to a pressure supply device, which can be a pressure pump. The other end extends from the side wall of the carrier into the channel and extends out from the upper bottom; the pressure test joint 4 is a conical table-shaped structure, which is sleeved at the upper bottom position of the carrier device 1, and the lower bottom of the pressure test joint 4 is fixedly connected to the carrier device 1. The output end of the pressure delivery pipeline 3 will be output from the pressure test joint 4.

[0028] The pressure delivery structure is exposed on the side wall section of the carrier device 1 and is provided with a pressure gauge 31 and a one-way valve 32 from near to far. A pressure source quick connector 33 is provided at the joint between the pressure delivery structure and the pressure supply device, and the function of the connector is to facilitate the combination and disconnection with the pressure pump.

[0029] The pressure test joint 4 is connected to the tapping fastening structure 2 by threading, and a sealing pad is provided at the connection between the two. The pressure test joint 4 is made of copper, and the outer wall of the carrier device 1 near the upper bottom is provided with an external thread. Figure 1 In the middle wavy line part, a collar is provided at the bottom of the pressure test joint head, and the inner wall of the collar is provided with an internal thread matched with the external thread of the carrier device 1.

[0030] A holding mechanism 5 is radially extended from the side wall of the carrier device 1. The holding mechanism 5 is a handle for holding the device when knocking it in and knocking the holding mechanism 5 in the opposite direction when taking the device out. Figure 2 The condenser single-tube pressure test device also includes a pipe plug 7, which is matched with the pressure test joint 4 and is used to block the other end of the condenser tube to be tested.

[0031] The pipe plug 7 comprises a second carrier device 6 , which is cylindrical, with a knocking and fastening structure 2 provided at its lower bottom, a pressure test joint 4 provided at its upper bottom, and a holding mechanism 5 provided at its side wall.

[0032] The pressure test joint 4 coincides with the straight line where the axis of the columnar structure of the carrier device 1 is located.

[0033] The judgment method is as follows:

[0034] One end of the pipe to be tested is blocked with the pipe plug 7, and the other end is blocked with the device. During the pressurization process, the change of the pressure value is controlled so that the test pressure reaches the rated pressure value of the equipment. If the pressure value cannot reach the rated pressure value or drops rapidly after reaching the rated pressure value during this process, it can be preliminarily judged that the heat exchange tube is damaged and severely corroded.

[0035] After cutting off the pressure source, observing the changes in the pressure gauge value can determine whether there is slight damage and corrosion in the heat exchange tube. If the pressure value drops sharply during the pressure holding period, it is judged that the heat exchange tube of the equipment cannot meet the normal operation requirements.

[0036] The main function of the one-way valve 32 is to ensure that the pressure of the pressure source can be positively delivered to the pipe to be tested and can maintain a continuous pressure value, to prevent pressure backflow and a decrease in the pressure value in the pipe. The material of the pressure test joint 4 is mainly copper parts, which are easy to ductile. It is connected to the device's knocking and fastening structure by threaded threads. The component is an internal thread structure. In order to ensure its sealing performance, it is necessary to add a sealing gasket at the connection for sealing. The heat exchange tubes are connected by utilizing their ductility and their own metal properties, which can be safe and convenient, without damaging the equipment's heat exchange tube body, and can be reused with a high reuse rate; it is convenient to connect to the device's knocking and locking mechanism, easy to operate, and convenient to replace the pressure test joints of the corresponding size according to different heat exchange tube models.

[0037] The pressure test device simulates the working pressure of the heat exchanger, and uses the device's tapping and fastening structure to seal one end of the single heat exchange tube that needs to be pressure tested, while the other side is sealed by the device body. After the sealing is completed, the quick connector of the high-pressure gas or high-pressure water connection device is used for pressure testing. According to the rated pressure of the equipment, the pressure gauge value change is paid attention to and the pressure holding test is performed to achieve the purpose of pressure testing, ensure the stable operation of the single tube, and thus eliminate the equipment from being unable to be used normally due to damage to a single or multiple heat exchange tubes during the use of the heat exchanger.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A portable single-tube pressure test device for a ship condenser, characterized in that: It includes a carrier device, a knocking and fastening structure, a pressure conveying structure and a pressure test joint; The carrier device is a columnar structure with a closed lower bottom; an internally connected channel is provided between the side wall and the upper bottom of the carrier device; The knocking and fastening structure is arranged at the bottom of the carrier device, and is used to provide a force-carrying surface for the device to avoid directly knocking the carrier device and causing damage to it; The pressure delivery structure is a pressure delivery pipeline, one end of which is connected to a pressure supply device, and the other end of which extends from the side wall of the carrier into the channel to the upper bottom; The pressure test butt joint is a conical table-like structure, which is sleeved on the upper bottom position of the carrier device, and the lower bottom of the pressure test butt joint is fixedly connected to the carrier device.

2. The portable single-tube pressure test device for ship condenser according to claim 1 is characterized in that: The pressure delivery structure is exposed on the side wall section of the carrier device and is provided with a pressure gauge and a one-way valve in sequence from near to far.

3. The portable single-tube pressure test device for ship condenser according to claim 2 is characterized in that: A pressure source quick connector is provided at the joint between the pressure delivery structure and the pressure supply device.

4. The portable single-tube pressure test device for ship condenser according to claim 3 is characterized in that: The pressure test joint and the knocking fastening structure are connected in a threaded manner, and a sealing foot pad is provided at the connection between the two.

5. The portable single-tube pressure test device for ship condenser according to claim 4 is characterized in that: The pressure test joint is made of copper, the outer wall of the carrier device near the upper bottom is provided with an external thread, the lower bottom of the pressure test joint is provided with a ring, and the inner wall of the ring is provided with an internal thread that matches the external thread of the carrier device.

6. The portable single-tube pressure test device for ship condenser according to claim 5, characterized in that: A holding mechanism is also radially extended on the side wall of the carrier device. The holding mechanism is a handle, which is used for holding when knocking in the device and knocking the holding mechanism in reverse when taking out the device.

7. The portable single-tube pressure test device for ship condenser according to claim 6, characterized in that: The single-tube pressure test device for condenser also includes a tube plug, which is matched with the pressure test joint and is used to block the other end of the condenser tube to be tested.

8. The portable single-tube pressure test device for ship condenser according to claim 7, characterized in that: The pipe plug comprises a second carrier device, which is in a columnar shape, with the knocking and fastening structure provided at its lower bottom, the pressure test joint provided at its upper bottom, and the holding mechanism provided at its side wall.

9. The portable single-tube pressure test device for ship condenser according to claim 1, characterized in that: The pressure test joint coincides with the straight line where the axis of the columnar structure of the carrier device is located.

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