Water pressure detection device for hydraulic oil heat exchanger

Abstract

The utility model discloses a hydraulic pressure detection device for a hydraulic oil heat exchanger, and belongs to the technical field of heat exchanger maintenance. The hydraulic oil heat exchanger comprises a shell and a pipe bundle, the hydraulic oil heat exchanger further comprises an end peeping cover plate, a water sealing plate and a water inlet plate, the end peeping cover plate is installed on the shell and arranged along with a gap between one end of the pipe bundle and the shell, and a peeping hole allowing the end of a heat conduction copper pipe to be directly observed is formed in the middle of the end peeping cover plate. A plurality of mounting holes are formed in the end peeping cover plate at intervals; the water sealing plate is arranged on the outlet in a sealed mode, the water inlet plate is arranged on the inlet in a sealed mode, and a pressure water connector is arranged at the end of the water inlet plate. The problems that when a traditional working oil heat exchanger cracks and leaks, in a water pressure leakage test experiment, due to the fact that end covers on the two sides shield an outlet of a heat conduction copper pipe bundle, maintenance personnel cannot observe the leakage condition of a heat conduction copper pipe in real time and cannot judge the damaged position of the heat conduction copper pipe of the working oil heat exchanger, and the maintenance difficulty is large are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchanger maintenance, in particular to a water pressure detection device for a hydraulic oil heat exchanger. Background Art

[0002] The hydraulic oil heat exchanger is a heat exchange device used in diesel locomotives. Its principle is to transfer the heat of the high-temperature cooling medium (hydraulic oil) to the low-temperature cooling medium (water) through the heat-conducting copper tube to achieve the purpose of cooling. Figure 1 The structure of the hydraulic oil heat exchanger includes a shell 11, a tube bundle 12 and an end cover 15. Among them, the two sides of the shell are divided into two connection ports, an inlet 13 and an outlet 14. The high-temperature cooling medium (hydraulic oil) enters the shell 11 from the inlet 13 and flows out from the outlet 14. The tube bundle is composed of multiple copper heat-conducting copper tubes and is responsible for transferring heat energy. The end cover 15 is used to fix the tube bundle and seal the gap between the tube bundle 12 and the shell 11. The low-temperature cooling medium (water) flows in from one port of the heat-conducting copper tube, and exchanges heat energy with the high-temperature cooling medium (hydraulic oil) after passing through the heat-conducting copper tube to achieve heat exchange. When the working oil heat exchanger leaks, oil and water will mix in the oil heat exchanger, which may cause damage to the equipment. It is necessary to use a water pressure leak test. During the water pressure leak test, since the end covers on both sides block the outlet of the heat-conducting copper tube bundle, the maintenance personnel cannot observe the leakage of the heat-conducting copper tube in real time, and cannot determine the location of the damaged heat-conducting copper tube of the working oil heat exchanger, making maintenance difficult.

[0003] Therefore, it is necessary to study a hydraulic oil heat exchanger water pressure detection device. When the internal heat-conducting copper tube of the hydraulic oil heat exchanger is damaged, causing the hydraulic oil to leak into the cooling water through the cluster tube, a special device is used to perform a water pressure test to ensure that the damaged part can be detected efficiently and accurately to determine whether to repair or replace it. Summary of the invention

[0004] The purpose of the utility model is to provide a hydraulic oil heat exchanger water pressure detection device to solve the problem that when a traditional working oil heat exchanger is cracked and leaked, due to the blocking of the outlet of the heat-conducting copper tube bundle by the end covers on both sides during the water pressure leak test, the maintenance personnel cannot observe the leakage of the heat-conducting copper tube in real time and cannot determine the location of the damaged heat-conducting copper tube of the working oil heat exchanger, which makes the maintenance difficult.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0006] A hydraulic oil heat exchanger water pressure detection device, the hydraulic oil heat exchanger includes a shell and a tube bundle, a cavity is arranged in the shell, an inlet and an outlet connected to the cavity are arranged on both sides of the shell, the tube bundle is composed of a plurality of heat-conducting copper tubes arranged alternately, and the tube bundle passes through the cavity; it also includes an end peep cover plate, a water sealing plate and a water inlet plate, the end peep cover plate is installed on the shell, the end peep cover plate is arranged along the gap between one end of the tube bundle and the shell, a peep hole for directly observing the end of the heat-conducting copper tube is arranged in the middle of the end peep cover plate, and a plurality of mounting holes are arranged alternately on the end peep cover plate; the water sealing plate is sealingly installed on the outlet, the water inlet plate is sealingly installed on the inlet, and a pressure water connector is arranged at the end of the water inlet plate.

[0007] Furthermore, a first sealing rubber pad is provided on an end surface of the end peek cover plate that is in contact with the shell.

[0008] Furthermore, a second sealing rubber pad is provided on one end surface of the water sealing plate that is in contact with the outlet.

[0009] Furthermore, a third sealing rubber pad is provided on one end surface of the water inlet plate that is in contact with the inlet.

[0010] Furthermore, the hydraulic oil heat exchanger includes two tube bundles, and two peep holes are arranged on the end peep cover plate, and each peep hole corresponds to an end of the tube bundle.

[0011] Furthermore, the end peep cover is in the shape of an "8".

[0012] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] 1. The utility model can save time and cost, can quickly identify the problem, and shorten the maintenance time. By efficiently locating the damaged part, the maintenance can be completed as soon as possible, reducing the equipment downtime and ensuring normal production. When solving the problem of traditional working oil heat exchanger cracks and leaks, in the water pressure leak test, due to the blocking of the outlet of the thermal copper tube bundle by the end covers on both sides, the maintenance personnel cannot observe the leakage of the thermal copper tube in real time, and cannot determine the location of the damaged thermal copper tube of the working oil heat exchanger, resulting in the problem of difficulty in maintenance. At the same time, damage to the thermal copper tube inside the hydraulic oil heat exchanger will cause problems such as medium leakage, and long-term use will affect the performance of the equipment and increase the probability of failure. By efficiently locating the damaged part and carrying out repairs or replacements in time, the service life of the equipment can be extended and the stability and reliability of the equipment can be improved.

[0014] 2. The utility model is provided with a plurality of sealing rubber pads, which can improve the airtightness between components during the water pressure test, prevent water leakage, and improve reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the hydraulic oil heat exchanger;

[0016] Figure 2 It is a three-dimensional structural diagram of the utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the end peek cover of the utility model;

[0018] In the accompanying drawings, 1-hydraulic oil heat exchanger, 2-end peep cover, 3-water sealing plate, 4-water inlet plate, 11-shell, 12-tube bundle, 13-outlet, 14-inlet, 15-end cover, 21-peep hole, 22-mounting hole, 23-first sealing rubber pad, 31-second sealing rubber pad, 41-connector, 42-third sealing rubber pad. DETAILED DESCRIPTION

[0019] The specific implementation of the utility model is further described below with reference to the accompanying drawings.

[0020] In the description of the present invention, it should be understood that the terms "center", "length", "width", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 on the present invention.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0023] See also Figures 1 to 3A hydraulic oil heat exchanger 1 water pressure detection device, the hydraulic oil heat exchanger 1 includes a shell 11 and a tube bundle 12, a cavity is arranged in the shell 11, an inlet 14 and an outlet 13 connected to the cavity are arranged on both sides of the shell 11, the tube bundle 12 is composed of a plurality of heat-conducting copper tubes arranged alternately, and the tube bundle 12 passes through the cavity; it also includes an end peep cover plate 2, a water sealing plate 3 and a water inlet plate 4, the end peep cover plate 2 is installed on the shell 11, the end peep cover plate 2 is arranged with the gap between one end of the tube bundle 12 and the shell 11, a peep hole 21 for directly observing the end of the heat-conducting copper tube is arranged in the middle of the end peep cover plate 2, and a plurality of mounting holes 22 are arranged alternately on the end peep cover plate 2; the water sealing plate 3 is sealed and installed on the outlet 13, the water inlet plate 4 is sealed and installed on the inlet 14, and a pressure water connector 41 is arranged at the end of the water inlet plate 4. Specifically, the hydraulic oil heat exchanger 1 includes two tube bundles 12, and two peep holes 21 are arranged on the end peep cover plate 2, and each peep hole 21 corresponds to an end of a tube bundle 12. The end peep cover plate 2 is in an "8" shape.

[0024] In this embodiment, a first sealing rubber pad 23 is provided on the end surface of the end peek cover plate 2 that is in contact with the housing 11, and the first sealing rubber pad 23 has the same shape as the end peek cover plate 2; a second sealing rubber pad 31 is provided on the end surface of the water sealing plate 3 that is in contact with the outlet 13, and a third sealing rubber pad 42 is provided on the end surface of the water inlet plate 4 that is in contact with the inlet 14. The second sealing rubber pad 31 and the third sealing rubber pad 42 are both square structures. By providing the first sealing rubber pad 23, the second sealing rubber pad 31 and the third sealing rubber pad 42, the sealing performance of each component can be improved, and the pressure water can be prevented from escaping from the gap between the components, thereby improving the reliability.

[0025] The method of using this embodiment is as follows:

[0026] 1. Remove at least one end cover 15 of the hydraulic oil heat exchanger 1, and install the end peep cover plate 2 to the end of the hydraulic oil heat exchanger 1 instead of the end cover 15;

[0027] 2. Install the water sealing plate 3 on the outlet 13 of the housing 11 to block the outlet 13; install the water inlet plate 4 on the inlet 14 to ensure that the seal can establish water pressure;

[0028] 3. Connect the connector 41 of the water inlet plate 4 to pressurized water with a water pressure of 620 kPa. Check for leakage within 5 minutes;

[0029] 4. The water leakage can be directly observed through the peep hole 21, so that the maintenance personnel can observe the damage of a specific thermal copper pipe in real time during the water pressure test, so as to efficiently and accurately lock the cracked thermal copper pipe, and then carry out subsequent inspection, plugging and repair treatment, and promote the work of repairing old and reusing waste.

[0030] The above description is a detailed description of the preferred feasible embodiment of the utility model, but the embodiment is not used to limit the scope of the patent application of the utility model. All equivalent changes or modified changes completed under the technical spirit suggested by the utility model should fall within the patent scope covered by the utility model.

Claims

1. A hydraulic oil heat exchanger water pressure detection device, the hydraulic oil heat exchanger includes a shell and a tube bundle, a cavity is arranged in the shell, an inlet and an outlet connected to the cavity are arranged on both sides of the shell, the tube bundle is composed of a plurality of heat-conducting copper tubes arranged alternately, and the tube bundle passes through the cavity; the characteristics are: It also includes an end peep cover, a water sealing plate and a water inlet plate. The end peep cover is installed on the shell, and is set along the gap between one end of the tube bundle and the shell. A peep hole for directly observing the end of the heat-conducting copper tube is set in the middle of the end peep cover, and a plurality of mounting holes are alternately set on the end peep cover; the water sealing plate is sealingly installed on the outlet, the water inlet plate is sealingly installed on the inlet, and a pressure water connector is set at the end of the water inlet plate.

2. A hydraulic oil heat exchanger water pressure detection device according to claim 1, characterized in that: A first sealing rubber pad is arranged on an end surface of the end peek cover plate that is in contact with the shell.

3. The hydraulic oil heat exchanger water pressure detection device according to claim 1, characterized in that: A second sealing rubber pad is arranged on one end surface of the water sealing plate that is in contact with the outlet.

4. The hydraulic oil heat exchanger water pressure detection device according to claim 1, characterized in that: A third sealing rubber pad is arranged on one end surface of the water inlet plate that is in contact with the inlet.

5. The hydraulic oil heat exchanger water pressure detection device according to claim 1, characterized in that: The hydraulic oil heat exchanger comprises two tube bundles. Two peep holes are arranged on the end peep cover plate, and each peep hole corresponds to an end of the tube bundle.

6. A hydraulic oil heat exchanger water pressure detection device according to claim 5, characterized in that: The end peep cover is in the shape of "8".

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