CN204228350U - Heat exchanger tube impermeability automatic detection device - Google Patents

Abstract

The utility model provides an automatic detection device for air tightness of heat exchange tubes, which comprises a water tank, a detection platform and a driving device 1, and the driving device 1 can drive the detection platform to float out or sink into the water tank; the detection platform includes an installation platform, the tail seal seat installed on the installation platform, the inflator device slidingly connected with the installation platform, the driving device 2 for driving the inflator device to slide on the installation platform and the support roller, and the support roller is installed on the tail seal seat and the inflator device between; the tail seal seat is provided with several sealing heads, the inflation device includes an inflation cylinder and several inflation heads communicated with the inflation cylinder, there are several grooves on the support roller, and the sealing head , the inflatable head and the number of grooves are equal, one-to-one correspondence. The utility model can simultaneously detect the air tightness of multiple heat exchange tubes, and only needs one detection device; at the same time, the support roller is added to realize the automatic connection between the inflation device and the heat exchange tubes, and the operation is convenient, and the production efficiency is improved.

Description

Heat exchange tube air tightness automatic detection device

technical field

The utility model relates to the field of air tightness detection, in particular to an air tightness detection device for heat exchange pipelines.

Background technique

Heat exchange pipes are mostly used in the heat dissipation systems of boilers, air conditioners or refrigerators, etc., and all of them must be tested for air tightness to confirm whether there is any leakage. The air tightness detection device in the prior art can only detect one heat exchange pipe at a time, and the efficiency is low; if multiple heat exchange pipes are to be tested, it is necessary to use corresponding multiple inflators to inflate the pipes, and simultaneously use multiple A detection device increases the cost; moreover, the sealing and connection at both ends of the pipeline often require manual operation, and the production efficiency is low.

Utility model content

The technical problem to be solved by the utility model is: to overcome the disadvantages in the prior art that multiple detection devices need to be configured at the same time when performing air tightness detection on multiple heat exchange tubes and increase the cost, and provide a heat exchange tube airtight Automatic detection device.

The technical solution adopted by the utility model is an automatic air-tightness detection device for heat exchange tubes, including a water tank, a detection platform and a driving device 1, and the driving device 1 can drive the detection platform to float out or sink into the water tank; The detection platform includes a mounting platform, a tail sealing seat installed on the mounting platform, an inflatable device slidingly connected with the mounting platform, a driving device 2 for driving the inflating device to slide on the mounting platform, and a supporting roller, and the supporting roller is installed on the Between the tail sealing seat and the inflation device;

The tail sealing seat is provided with several sealing heads, the inflation device includes an inflation cylinder and several inflation heads connected with the inflation cylinder, there are several grooves on the support roller, the sealing heads, inflation heads and the number of grooves are equal, one-to-one correspondence.

When in use, first place a number of heat exchange tubes in the groove of the support roller, install one end of the heat exchange tubes in the sealing head on the tail sealing seat, so that the number of heat exchange tubes are fixed, start the cylinder two, cylinder 2. Push the inflatable device to slide, so that the inflatable head is connected and sealed with the other end of the heat exchange tube, then start the cylinder one, drive the detection table to move down and sink into the water in the water tank, open the external air source to inflate the inflatable device, and the gas passes through the inflatable The air cylinder and the inflatable head enter the heat exchange tube. If the heat exchange tube leaks, bubbles will appear in the corresponding position in the water tank. If there is no bubble, the air tightness meets the requirements. Finally, start the cylinder and drive the detection table to rise and float out. Water surface, and then change a batch of pipelines for testing.

Preferably, in order to facilitate the up and down movement of the detection platform, the driving device is a cylinder one, the output end of the cylinder one is fixedly connected to the installation platform, and the side surface of the installation platform is slidingly connected to the inner wall of the water tank.

As a preference, the tail of the mounting table is provided with several sets of threaded holes along its length, and the tail sealing seat is installed on the mounting table through bolts and threaded holes, so that it can adapt to the different lengths of the heat exchange tubes. Select the corresponding threaded hole selectively to adjust the position between the tail seal seat and the inflatable device.

Further, the head of the installation table has a guide rail along the length direction of the installation table, the inflatable device is slidably connected to the installation table through the guide rail, the driving device is the second cylinder, and the output end of the second cylinder is fixed to the inflator connect.

Preferably, the guide rail is a dovetail guide rail, which effectively avoids the up and down vibration or deviation of the inflator during the sliding process, so that the inflatable head can be smoothly connected and sealed with the heat exchange tube.

As a preference, both the sealing head and the inflating head are provided with sealing pads, and the sealing pads are silica gel pads.

Further, for the convenience of controlling the pressure in the inflatable cylinder, the described inflatable cylinder is connected with the external source through the inflatable tube, and the described inflatable tube is provided with a pressure gauge,

The beneficial effect of the utility model is that the detection device of the utility model can simultaneously detect the air tightness of multiple heat exchange tubes, and only one detection device (inflating device, etc.) is needed; The connection with the heat exchange tube is automatic, no manual operation is required, the structure is simple, the operation is convenient, and the production efficiency is improved.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the three-dimensional structural representation of the utility model;

Figure 2 is an enlarged view of A in Figure 1;

Figure 3 is an enlarged view at B in Figure 1;

Fig. 4 is a schematic view of the structure of the backup roller;

In the figure 1. Water tank, 2. Installation platform, 3. Tail seal seat, 31. Seal head, 4. Inflatable cylinder, 41. Inflatable head, 5. Cylinder two, 6. Support roller, 61. Groove, 7. Inflatable Tube, 8. pressure gauge, 9. cylinder one, 10. heat exchange tube.

Detailed ways

Now in conjunction with accompanying drawing, the utility model is described in further detail. These drawings are all simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the configurations related to the utility model.

Example 1

As shown in Figure 1, a heat exchange tube airtightness automatic detection device includes a water tank 1, a detection platform and a driving device 1, and the driving device 1 can drive the detection platform to float out or sink into the water tank 1; The detection platform includes a mounting platform 2, a tail sealing seat 3 installed on the mounting platform 2, an inflatable device slidably connected to the mounting platform 2, a driving device 2 and a supporting roller for driving the inflatable device to slide on the mounting platform 2, the described The support roller 6 is installed between the tail sealing seat 3 and the inflation device;

As shown in Figure 1, specifically, the installation method between the driving device one, the mounting table 2, the water tank 1, the sealing seat, the inflation device and the driving device two is: in this embodiment, the driving device one adopts the cylinder one 9, and the cylinder The output end of -9 is fixedly connected with the installation table 2, and the side of the installation table 2 is slidingly connected with the inner wall of the water tank 1; the tail of the installation table 2 is provided with several groups of threaded holes arranged along its length direction, and the The sealing seat 3 is installed on the installation table 2 through bolts and threaded holes; the head of the installation table 2 has a guide rail along the length direction of the installation table 2, and the guide rail is a dovetail guide rail, and the inflatable device is installed through the guide rail The table 2 is slidingly connected, and the driving device is a cylinder two 5, and the output end of the cylinder two 5 is fixedly connected with the inflation device;

As shown in FIG. 3, five sealing heads 31 are arranged on the tail sealing seat 3; as shown in FIGS. 41. For the convenience of controlling the pressure in the inflatable cylinder 4, the inflatable cylinder 4 is connected to the external source through the inflatable tube 7, and the inflatable tube 7 is provided with a pressure gauge 8; as shown in Figure 4, the support There are five grooves 61 on the roller 6, and the sealing head 31, the inflating head 41 and the grooves 61 correspond one by one; the sealing head 31 and the inflating head 41 are both provided with a silica gel pad as a sealing pad.

When in use, five heat exchange tubes 10 are respectively placed in the five grooves 61 of the support roller 6, and one end of the heat exchange tubes 10 is installed in the sealing head 31 on the tail seal seat 3, so that several heat exchange tubes 10 is fixed, start the cylinder 2 5, and the cylinder 2 5 pushes the inflatable device to slide, so that the inflatable head 41 is connected and sealed with the other end of the heat exchange tube 10, and then starts the cylinder 1 9 to drive the detection table to move downward and enter the water tank 1 In the water, open the external air source to inflate the inflator. The gas enters the heat exchange tube 10 through the inflatable cylinder 4 and the inflatable head 41. Bubbles appear, and if there is no foaming, the airtightness meets the requirements. Finally, start cylinder 1 to drive the detection platform to rise and surface, and then replace a batch of heat exchange tubes 10 for testing.

Claims (7)

1. An automatic air-tightness detection device for heat exchange tubes, characterized in that: it includes a water tank (1), a detection platform and a driving device 1, and the driving device 1 can drive the detection platform to float out or sink into the water tank (1) ; The detection platform includes the installation platform (2), the tail seal seat (3) installed on the installation platform (2), the inflation device slidingly connected with the installation platform (2), and the driving inflation device on the installation platform (2) Sliding driving device 2 and support roller, the support roller (6) is installed between the tail sealing seat (3) and the inflation device; The tail sealing seat (3) is provided with several sealing heads (31), and the inflation device includes an inflation cylinder (4) and several inflation heads (41) communicated with the inflation cylinder (4), and the support There are several grooves (61) on the roller (6), and the number of the sealing head (31), the inflation head (41) and the grooves (61) is equal. 2. The heat exchange tube airtightness automatic detection device according to claim 1, characterized in that: the driving device is a cylinder one (9), and the output end of the cylinder one (9) is connected to the mounting table (2 ) is fixedly connected, and the side of the mounting table (2) is slidably connected with the inner wall of the water tank (1). 3. The automatic air-tightness detection device for heat exchange tubes according to claim 1, characterized in that: the tail of the mounting table (2) is provided with several groups of threaded holes arranged along its length, and the tail is sealed The seat (3) is installed on the mounting table (2) by bolts and threaded holes. 4. The heat exchange tube air tightness automatic detection device according to claim 1, characterized in that: the head of the installation platform (2) has a guide rail along the length direction of the installation platform (2), and the inflation device The guide rail is slidably connected with the mounting table (2), the driving device is the second cylinder (5), and the output end of the second cylinder (5) is fixedly connected with the inflation device. 5. The device for automatically detecting the airtightness of heat exchange tubes according to claim 4, wherein the guide rail is a dovetail guide rail. 6. The heat exchange tube air-tightness automatic detection device according to claim 1, characterized in that: the sealing head (31) and the inflation head (41) are both provided with gaskets, and the gaskets are Silicone pad. 7. The heat exchange tube air-tightness automatic detection device according to claim 1, characterized in that: said gas-filled cylinder (4) is connected to an external source through a gas-filled tube (7), and said gas-filled tube (7) A pressure gauge (8) is arranged on it.