Internal fluid temperature measuring device for heat exchanger

Abstract

A device for measuring the temperature of an internal fluid in a heat exchanger relates to the technical field of heat exchangers and comprises a heat exchanger body, wherein a fluid delivery pipe is connected and fixed at a port position of the heat exchanger body, a temperature measuring pipe is connected and fixed on the fluid delivery pipe, an upper plug and a lower plug are movably connected to the inner side of the temperature measuring pipe, respectively, the upper plug and the lower plug are connected and fixed by a connecting frame, a temperature measuring probe is arranged between the upper plug and the lower plug, an adjusting mechanism for adjusting the position of the plug is installed on the side of the heat exchanger body, and when the temperature is not measured, the temperature measuring probe is retracted into the temperature measuring pipe and does not contact with the fluid, thereby avoiding long-term scouring of the temperature measuring probe by the fluid and causing scaling on the surface of the temperature measuring probe, thereby increasing the service life of the temperature measuring probe, and at the same time, the temperature measuring probe can be removed from the temperature measuring pipe, thereby facilitating maintenance of the temperature measuring probe.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to an internal fluid temperature measuring device for a heat exchanger. Background Art

[0002] Heat exchangers are devices that transfer part of the heat of hot fluid to cold fluid. With the development of society, there are more and more types of heat exchangers. They play an important role in chemical, petroleum, power, food and many other industrial productions, and play an important role in the development of our society.

[0003] When the heat exchanger measures the temperature of its internal fluid, its temperature measuring probe is directly inserted into the heat exchanger and contacts the fluid. Even when temperature measurement is not needed, the temperature measuring probe is still in contact with the fluid. Under the long-term flushing of the fluid, the dirt on the fluid is easy to scale on the temperature measuring probe, thereby reducing its service life. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide an internal fluid temperature measuring device for a heat exchanger. When not measuring temperature, the temperature measuring probe is retracted into the temperature measuring tube and is not in contact with the fluid, thereby avoiding long-term erosion of the temperature measuring probe by the fluid and causing scaling on the surface of the temperature measuring probe, thereby increasing the service life of the temperature measuring probe. At the same time, the temperature measuring probe can be removed from the temperature measuring tube, thereby facilitating maintenance of the temperature measuring probe, and can effectively solve the problems in the background technology.

[0005] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0006] An internal fluid temperature measuring device for a heat exchanger comprises a heat exchanger body, a port position of the heat exchanger body is connected and fixed with a fluid delivery pipe, a temperature measuring tube is connected and fixed on the fluid delivery pipe, an upper plug and a lower plug are movably connected to the inner side of the temperature measuring tube, the upper plug and the lower plug are connected and fixed by a connecting frame, a temperature measuring probe is arranged between the upper plug and the lower plug, and an adjustment mechanism for adjusting the plug position is installed on the side of the heat exchanger body.

[0007] Furthermore, it also includes a filter screen, which is sleeved on the side of the temperature measuring probe and is arranged between the upper plug and the lower plug.

[0008] Furthermore, the adjustment mechanism includes a transmission rod and a mounting frame. There are two groups of mounting frames, and the two groups of mounting frames are symmetrically arranged on the left and right. The transmission rod is fixed to the side of the mounting frame, and the other end of the transmission rod is fixedly connected to the upper plug.

[0009] Furthermore, the adjustment mechanism also includes a rack, a gear and a rotating shaft. The gear is rotatably mounted on a side support of the heat exchanger body via the rotating shaft. The rack is fixed to a side surface of the mounting frame, and the rack is meshed with the gear teeth.

[0010] Furthermore, the adjustment mechanism also includes a handle, and the handle is fixed on the top of the rotating shaft.

[0011] Furthermore, the adjustment mechanism also includes a guide rod and a slide groove, the slide groove is opened on the inner side of the rack, the guide rod is fixed to the side of the mounting frame, and the guide rod is slidably connected to the slide groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the internal fluid temperature measuring device for the heat exchanger has the following advantages: the upper plug is driven to move left and right through the adjustment mechanism, and the upper plug drives the lower plug to move through the connecting frame, thereby adjusting the working position of the temperature measuring probe; when it is not measuring the temperature, the temperature measuring probe is retracted into the temperature measuring tube and does not contact the fluid, thereby avoiding the fluid from flushing the temperature measuring probe for a long time and causing scaling on its surface, thereby increasing the service life of the temperature measuring probe; when performing maintenance, the temperature measuring probe can be removed from the temperature measuring tube, thereby facilitating maintenance of the temperature measuring probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the three-dimensional first cross-sectional structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the second three-dimensional cross-sectional structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the local structure of the temperature measuring part of the utility model.

[0017] In the figure: 1 heat exchanger body, 2 fluid delivery pipe, 3 temperature measuring pipe, 4 adjustment mechanism, 41 rotating shaft, 42 gear, 43 handle, 44 rack, 45 guide rod, 46 transmission rod, 47 mounting frame, 48 slide, 5 filter screen, 6 upper plug, 7 temperature measuring probe, 8 lower plug, 9 connecting frame. DETAILED DESCRIPTION

[0018] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0019] See also Figure 1-4The present embodiment provides a technical solution: an internal fluid temperature measuring device for a heat exchanger, comprising a heat exchanger body 1, a fluid delivery pipe 2 is connected and fixed at a port position of the heat exchanger body 1, a temperature measuring pipe 3 is connected and fixed on the fluid delivery pipe 2, an upper plug 6 and a lower plug 8 are movably connected to the inner side of the temperature measuring pipe 3, the upper plug 6 and the lower plug 8 are connected and fixed by a connecting frame 9, a temperature measuring probe 7 is arranged between the upper plug 6 and the lower plug 8, an adjusting mechanism 4 for adjusting the plug position is installed on the side of the heat exchanger body 1, the upper plug 6 drives the lower plug 8 to move through the connecting frame 9, when the lower plug 8 moves out of the temperature measuring pipe 3 and enters the fluid delivery pipe 2, the fluid contacts the temperature measuring probe 7, and the temperature measuring probe 7 is moved by the upper plug 6. The temperature measuring probe 7 measures the temperature of the fluid, and the temperature measuring probe 7 is electrically connected to an external thermometer. At this time, the upper plug 6 blocks the temperature measuring tube 3 to prevent the fluid from being discharged from the temperature measuring tube 3. When testing is not required, the upper plug 6 returns to its original position. At this time, the lower plug 8 blocks the temperature measuring tube 3, and the temperature measuring probe 7 is retracted into the temperature measuring tube 3. When the temperature measuring probe 7 needs to be maintained, the upper plug 6 is removed from the temperature measuring tube 3, and the lower plug 8 blocks the port position of the temperature measuring tube 3. At this time, when it is not measuring the temperature, the temperature measuring probe 7 is retracted into the temperature measuring tube 3 and does not contact the fluid, thereby preventing the fluid from scouring the temperature measuring probe 7 for a long time and causing scaling on its surface, thereby increasing the service life of the temperature measuring probe 7.

[0020] It also includes a filter screen 5, which is sleeved on the side of the temperature measuring probe 7. The filter screen 5 is arranged between the upper plug 6 and the lower plug 8. The filter screen 5 is used to filter the passing fluid, thereby preventing impurities on the fluid from adhering to the temperature measuring probe 7.

[0021] The adjusting mechanism 4 includes a transmission rod 46 and a mounting frame 47. The mounting frame 47 has two groups, and the two groups of mounting frames 47 are symmetrically arranged. The transmission rod 46 is fixed to the side of the mounting frame 47, and the other end of the transmission rod 46 is fixedly connected to the upper plug 6. The adjusting mechanism 4 also includes a rack 44, a gear 42 and a rotating shaft 41. The gear 42 is rotatably mounted on the side support of the heat exchanger body 1 through the rotating shaft 41. The rack 44 is fixed to the side of the mounting frame 47, and the rack 44 and the gear 42 are meshed. The adjusting mechanism 4 also includes a handle 43, which is fixed to the top of the rotating shaft 41. The structure 4 also includes a guide rod 45 and a slide groove 48. The slide groove 48 is arranged on the inner side of the rack 44. The guide rod 45 is fixed to the side of the mounting frame 47. The guide rod 45 is slidably connected with the slide groove 48. When temperature measurement is required, the handle 43 is turned, and the handle 43 drives the gear 42 to rotate through the rotating shaft 41. The gear 42 is meshed with the rack 44 for transmission, and the rack 44 drives the mounting frame 47 to move left and right. At this time, the guide rod 45 on the mounting frame 47 and the slide groove 48 on the rack 44 slide relative to each other, and the mounting frame 47 drives the upper plug 6 to move left and right through the transmission rod 46. It is easy to adjust and easy to use.

[0022] The working principle of the internal fluid temperature measuring device for a heat exchanger provided by the utility model is as follows: when temperature measurement is required, the handle 43 is turned, the handle 43 drives the gear 42 to rotate through the rotating shaft 41, the gear 42 is meshed with the rack 44 for transmission, and the rack 44 drives the mounting frame 47 to move left and right. At this time, the guide rod 45 on the mounting frame 47 and the slide groove 48 on the rack 44 slide relative to each other, the mounting frame 47 drives the upper plug 6 to move left and right through the transmission rod 46, the upper plug 6 drives the lower plug 8 to move through the connecting frame 9, and the lower plug 8 moves out of the temperature measuring tube 3 and enters the fluid delivery tube 2. , the fluid passes through the filter 5 and contacts the temperature measuring probe 7, and the temperature of the fluid is measured by the temperature measuring probe 7. The temperature measuring probe 7 is electrically connected to the external thermometer. At this time, the upper plug 6 blocks the temperature measuring tube 3 to prevent the fluid from being discharged from the temperature measuring tube 3. When no test is needed, the upper plug 6 returns to its original position. At this time, the lower plug 8 blocks the temperature measuring tube 3, and the temperature measuring probe 7 is retracted into the temperature measuring tube 3. When the temperature measuring probe 7 needs to be maintained, the upper plug 6 is removed from the temperature measuring tube 3, and the lower plug 8 blocks the port position of the temperature measuring tube 3. At this time, the temperature measuring probe 7 is removed from the temperature measuring tube 3.

[0023] It is worth noting that the components disclosed in the above embodiments are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances, such as the rotational connection can be a rotational connection through a bearing.

[0027] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] The parts of the present invention that are not described in detail are prior art. Although the present invention is specifically demonstrated and introduced in conjunction with the preferred implementation scheme, there are many methods and ways to implement the technical solution. The above is only a preferred implementation scheme of the present invention. However, technical personnel in the relevant field should understand that various changes can be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined in the attached claims, which are all within the scope of protection of the present invention.

Claims

1. A device for measuring the temperature of an internal fluid of a heat exchanger, comprising a heat exchanger body (1), wherein a fluid delivery pipe (2) is connected and fixedly connected to a port of the heat exchanger body (1), and characterized in that: A temperature measuring tube (3) is connected and fixed on the fluid conveying tube (2), and an upper plug (6) and a lower plug (8) are movably connected to the inner side of the temperature measuring tube (3), respectively. The upper plug (6) and the lower plug (8) are connected and fixed via a connecting frame (9), and a temperature measuring probe (7) is provided between the upper plug (6) and the lower plug (8). An adjusting mechanism (4) for adjusting the position of the plug is installed on the side of the heat exchanger body (1).

2. The internal fluid temperature measuring device for a heat exchanger according to claim 1, characterized in that: It also includes a filter screen (5), wherein the filter screen (5) is sleeved on the side of the temperature measuring probe (7), and the filter screen (5) is arranged between the upper plug (6) and the lower plug (8).

3. The internal fluid temperature measuring device for a heat exchanger according to claim 1, characterized in that: The adjustment mechanism (4) comprises a transmission rod (46) and a mounting frame (47). The mounting frame (47) comprises two groups, and the two groups of mounting frames (47) are symmetrically arranged on the left and right. The transmission rod (46) is fixed to a side of the mounting frame (47), and the other end of the transmission rod (46) is fixedly connected to the upper plug (6).

4. The internal fluid temperature measuring device for a heat exchanger according to claim 3, characterized in that: The adjustment mechanism (4) further comprises a rack (44), a gear (42) and a rotating shaft (41); the gear (42) is rotatably mounted on a side support of the heat exchanger body (1) via the rotating shaft (41); the rack (44) is fixed to a side surface of a mounting frame (47); and the teeth of the rack (44) and the gear (42) are meshed.

5. The internal fluid temperature measuring device for a heat exchanger according to claim 4, characterized in that: The adjustment mechanism (4) further comprises a handle (43), wherein the handle (43) is fixed on the top of the rotating shaft (41).

6. The internal fluid temperature measuring device for a heat exchanger according to claim 4, characterized in that: The adjustment mechanism (4) further comprises a guide rod (45) and a slide groove (48), wherein the slide groove (48) is provided on the inner side of the rack (44), the guide rod (45) is fixed on the side of the mounting frame (47), and the guide rod (45) is slidably connected to the slide groove (48).

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