Temperature sensing blind tube sensitive in temperature measurement

Abstract

The utility model provides a temperature sensing blind tube sensitive in temperature measurement. The temperature sensing blind tube comprises a blind tube shell, a heat conduction lining and a temperature sensing assembly. The blind pipe shell comprises a containing pipe and a plugging head, a plurality of heat exchange grooves are formed in the inner side wall of the containing pipe, the plugging head is detachably arranged at the bottom of the containing pipe, a bearing protrusion is arranged on the plugging head, a containing groove is formed in the top face of the bearing protrusion, and a water absorption sponge column is arranged in the containing groove. The heat conduction lining is detachably arranged in the containing pipe, a plurality of heat exchange strips are arranged on the outer side wall of the heat conduction lining, and a liquid collection cavity is formed between the heat conduction lining and the bearing protrusion. The temperature sensing assembly comprises a mounting base, a connecting pipe and a temperature sensor which are sequentially connected from top to bottom, the mounting base is detachably arranged at the top of the containing pipe, and the temperature sensor is arranged in the heat conduction lining. According to the temperature sensing blind tube sensitive in temperature measurement, the sensitivity of temperature detection of the temperature sensing blind tube can be improved.

Description

Technical Field

[0001] The utility model belongs to the field of temperature measuring equipment, in particular to a temperature-sensitive blind tube with sensitive temperature measurement. Background Art

[0002] The temperature-sensing blind tube is a temperature detection device installed inside the liquid storage tank. The staff can determine the liquid temperature inside the liquid storage tank according to the reading of the temperature-sensing blind tube, so as to facilitate the flexible adjustment of the working state of the refrigeration system (or heating system).

[0003] When installing the temperature-sensing blind tube, the staff needs to keep the top of the temperature-sensing blind tube outside the liquid storage tank for line connection and data transmission, and the bottom of the temperature-sensing blind tube needs to be inserted below the liquid level of the liquid storage tank so that the sensor inside the temperature-sensing blind tube can obtain the liquid temperature inside the liquid storage tank.

[0004] However, when the temperature of the liquid in the liquid storage tank is lower than the external ambient temperature, condensed water will gather inside the temperature-sensing blind tube, which will easily cause the sensor to contact with the condensed water, thereby affecting the temperature detection accuracy. In addition, the existing temperature-sensing blind tube also has the problem of slow heat exchange speed. When the temperature of the liquid inside the liquid storage tank changes rapidly, the temperature inside the temperature-sensing blind tube cannot quickly keep consistent with the liquid temperature, which will cause the sensor's reading change to be delayed, thereby affecting the actual temperature measurement effect. Utility Model Content

[0005] In view of this, the utility model aims to provide a temperature-sensitive blind tube with sensitive temperature measurement to solve the above technical problems.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] A temperature-sensitive blind tube with sensitive temperature measurement, comprising:

[0008] A blind tube shell, the blind tube shell comprising a receiving tube and a plugging head, a plurality of heat exchange grooves are arranged on the inner side wall of the receiving tube, and the plurality of heat exchange grooves are arranged in a ring shape around the axis of the receiving tube; the plugging head is detachably arranged at the bottom of the receiving tube, a bearing protrusion is arranged on the plugging head, the bearing protrusion is inserted into the receiving tube, a receiving groove is arranged on the top surface of the bearing protrusion, and a water-absorbing sponge column is arranged in the receiving groove;

[0009] A heat-conducting bushing, which is detachably arranged inside the containing tube, and a plurality of heat-exchanging strips are arranged on the outer wall of the heat-conducting bushing, and the plurality of heat-exchanging strips are arranged inside the plurality of heat-exchanging grooves in a one-to-one correspondence, and a liquid collecting cavity is formed between the bottom end of the heat-conducting bushing and the top surface of the bearing protrusion;

[0010] The temperature sensing component includes a mounting seat, a connecting pipe and a temperature sensor connected in sequence from top to bottom. The mounting seat is detachably arranged on the top of the containing tube, the temperature sensor is placed inside the thermally conductive bushing, and the data line of the temperature sensor extends along the connecting pipe to the outside of the mounting seat.

[0011] Furthermore, a plurality of guide holes are provided on the top surface of the heat-conducting bushing, and the plurality of guide holes are arranged in a ring shape around the axis of the heat-conducting bushing, and the bottom end of each guide hole is connected to the liquid collecting cavity.

[0012] Furthermore, an annular liquid collecting groove is provided on the top surface of the heat conductive bushing, and the top ends of the plurality of guide holes are all connected to the annular liquid collecting groove.

[0013] Furthermore, the accommodating tube includes a connecting section and an accommodating section, the connecting section is arranged at the top of the accommodating section, and the inner diameter of the connecting section is larger than the inner diameter of the accommodating section, and the outer diameter of the connecting section is larger than the outer diameter of the accommodating section; an external thread is provided on the outer wall of the connecting section, and an internal thread is provided on the inner wall of the connecting section, and a threaded joint is provided on the bottom surface of the mounting seat, and the outer diameter of the threaded joint is equal to the inner diameter of the connecting section.

[0014] Furthermore, the temperature-sensitive temperature blind tube also includes a sealing component, and a receiving hole for accommodating a data cable is provided on the sealing component; the sealing component includes a sealing gasket and a sealing plug, the sealing gasket is arranged between the threaded joint and the receiving section, the sealing plug is arranged on the bottom surface of the sealing gasket, and the sealing plug is inserted into the receiving section.

[0015] Furthermore, the sealing assembly is provided with a mounting cutout, and the mounting cutout is communicated with the accommodating hole.

[0016] Furthermore, the bottom of the containing section is provided with an arc-shaped liquid collecting surface with the arc center facing upward.

[0017] Furthermore, a plurality of heat-conducting grooves are provided on the outer side wall of the accommodating tube.

[0018] Compared with the prior art, the temperature-sensitive blind tube with sensitive temperature measurement described in the utility model has the following advantages:

[0019] The utility model discloses a temperature-sensitive blind tube with sensitive temperature measurement, wherein a water-absorbing sponge column is provided inside the receiving groove, and a liquid collecting cavity is provided between the bottom end of the heat-conducting bushing and the top surface of the supporting protrusion. When the temperature of the liquid in the liquid storage tank is lower than the external ambient temperature, the liquid collecting cavity and the water-absorbing sponge column can collect the condensed water formed inside the blind tube shell, thereby avoiding the contact between the condensed water and the temperature sensor, and thus improving the sensitivity of the temperature measurement result. In addition, the device is provided with a heat exchange groove inside the receiving tube, and a heat exchange strip is provided on the heat-conducting bushing. By providing the heat exchange groove and the heat exchange strip, the contact area between the heat-conducting bushing and the blind tube shell can be increased, thereby improving the heat exchange efficiency, so that the temperature-sensitive blind tube can change the indication in time when the temperature of the liquid inside the liquid storage tank changes rapidly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the structure of a temperature-sensitive blind tube with sensitive temperature measurement according to an embodiment of the utility model;

[0022] Figure 2 It is a cross-sectional view of a temperature-sensitive blind tube with sensitive temperature measurement according to an embodiment of the utility model;

[0023] Figure 3 It is an exploded view of the temperature-sensitive blind pipe with sensitive temperature measurement according to the embodiment of the utility model;

[0024] Figure 4 A cross-sectional view of a housing tube according to an embodiment of the utility model;

[0025] Figure 5 This is a schematic structural diagram of the sealing assembly according to an embodiment of the utility model;

[0026] Figure 6 It is a schematic structural diagram of the heat-conducting bushing described in an embodiment of the utility model.

[0027] Description of reference numerals:

[0028] 11-connecting section; 12-accommodating section; 121-heat exchange groove; 122-arc-shaped liquid collecting surface; 13-heat conductive groove; 2-sealing head; 21-bearing protrusion; 22-accommodating groove; 23-water-absorbing sponge column; 3-thermal conductive bushing; 31-heat exchange strip; 32-flow guide hole; 33-annular liquid collecting groove; 4-mounting seat; 41-threaded joint; 5-connecting pipe; 6-temperature sensor; 61-data cable; 71-sealing pad; 72-accommodating hole; 73-sealing plug; 74-installation incision. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0030] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present 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 on the present utility model. In addition, the terms "first", "second", 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, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0033] A temperature-sensitive blind tube with sensitive temperature measurement, the structure of which can be Figure 1-Figure 6 As shown in the figure, in this embodiment, the temperature-sensitive temperature-sensing blind pipe comprises: a blind pipe shell, a heat-conducting bushing 3 and a temperature-sensing component, wherein the blind pipe shell is used to accommodate the heat-conducting bushing 3 and the temperature-sensing component, the heat-conducting bushing 3 is used to improve the heat exchange effect between the temperature-sensing component and the blind pipe shell, and the temperature-sensing component is used to measure the temperature, so as to facilitate the staff to determine the liquid temperature inside the liquid storage tank.

[0034] Specifically, the blind tube housing includes a receiving tube and a plugging head 2, wherein the plugging head 2 is detachably arranged at the bottom of the receiving tube by means of a threaded connection, and a bearing protrusion 21 is provided on the plugging head 2. During assembly, the bearing protrusion 21 should be inserted into the interior of the receiving tube to seal the bottom end of the receiving tube. The thermally conductive bushing 3 is detachably arranged inside the receiving tube, and a liquid collecting cavity for collecting condensed water is formed between the bottom end of the thermally conductive bushing 3 and the top surface of the bearing protrusion 21. The temperature sensing component includes a mounting seat 4, a connecting tube 5 and a temperature sensor 6 connected in sequence from top to bottom. During assembly, the mounting seat 4 is detachably arranged at the top of the receiving tube, the temperature sensor 6 is placed inside the thermally conductive bushing 3, and the data line 61 of the temperature sensor 6 extends to the outside of the mounting seat 4 along the connecting tube 5.

[0035] Optionally, in order to realize the detachable connection between the mounting seat 4 and the receiving tube, the receiving tube in this embodiment may include a connecting section 11 and a receiving section 12. Figure 3 and Figure 4 As shown, the connecting section 11 should be arranged at the top of the accommodating section 12, and the inner diameter of the connecting section 11 is larger than the inner diameter of the accommodating section 12, and the outer diameter of the connecting section 11 is larger than the outer diameter of the accommodating section 12. An external thread should be provided on the outer wall of the connecting section 11, an internal thread should be provided on the inner wall, and a threaded joint 41 with an outer diameter equal to the inner diameter of the connecting section 11 is provided on the bottom surface of the mounting seat 4. When assembling the various components in the present device, the staff can first sleeve the heat-conducting bushing 3 on the outside of the temperature sensor 6, then insert the temperature sensor 6 with the heat-conducting bushing 3 into the accommodating section 12, and then screw the threaded joint 41 into the inside of the connecting section 11, thereby completing the assembly work. Thereafter, the staff can also use the external thread on the connecting section 11 to achieve the connection between the present device and the liquid storage tank, so as to insert the accommodating section 12 below the liquid level inside the liquid storage tank.

[0036] When condensed water is formed inside the blind tube shell due to the temperature difference, the condensed water will gather inside the liquid collecting cavity because a liquid collecting cavity is provided between the heat conductive bushing 3 and the bearing protrusion 21. In this way, the temperature sensor 6 can be prevented from being immersed in the condensed water, thereby improving the accuracy and sensitivity of the temperature detection result. In addition, the device is also provided with a receiving groove 22 on the top surface of the bearing protrusion 21, and a water-absorbing sponge column 23 is provided in the receiving groove 22. When the condensed water gathers inside the liquid collecting cavity, the water-absorbing sponge column 23 can absorb the condensed water, thereby reducing the liquid level inside the liquid collecting cavity and preventing the condensed water from contacting the temperature sensor 6.

[0037] Optionally, in order to facilitate the condensed water above the heat-conducting bushing 3 to flow into the liquid collecting cavity, in this embodiment, a plurality of guide holes 32 may be provided on the top surface of the heat-conducting bushing 3, and the plurality of guide holes 32 are arranged in a ring shape around the axis of the heat-conducting bushing 3, and the bottom end of each guide hole 32 should be connected to the liquid collecting cavity. When condensed water condenses on the inner wall of the receiving tube above the heat-conducting bushing 3, the condensed water will flow downward under the action of gravity. Since the heat-conducting bushing 3 is provided with the guide holes 32 connected to the liquid collecting cavity, the condensed water will flow to the liquid collecting cavity through the guide holes 32, so as to collect the condensed water.

[0038] In addition, in order to improve the collection effect of condensed water above the heat-conducting bushing 3, an annular liquid collecting groove 33 may be provided on the top surface of the heat-conducting bushing 3, and the top ends of the plurality of guide holes 32 are all connected to the annular liquid collecting groove 33. By providing the annular liquid collecting groove 33, the condensed water above the heat-conducting bushing 3 can be collected so that the condensed water flows along the guide holes 32 to the inside of the liquid collecting cavity.

[0039] As an optional implementation of this embodiment, in order to facilitate the contact between the condensed water inside the liquid collection cavity and the water-absorbing sponge column 23, an arc-shaped liquid collection surface 122 with the arc center facing upward may be provided at the bottom of the accommodating section 12, so that the condensed water inside the liquid collection cavity can be gathered toward the water-absorbing sponge column 23 with the help of the arc-shaped liquid collection surface 122.

[0040] In order to improve the heat exchange effect between the temperature sensor 6 and the blind tube shell, and facilitate timely temperature detection when the temperature of the liquid inside the liquid storage tank changes rapidly, the device is provided with a plurality of heat exchange grooves 121 on the inner wall of the receiving tube, and the plurality of heat exchange grooves 121 are arranged in a ring shape around the axis of the receiving tube. Correspondingly, a plurality of heat exchange strips 31 are provided on the outer wall of the heat-conducting bushing 3, and the plurality of heat exchange strips 31 are arranged one by one inside the plurality of heat exchange grooves 121. By providing the heat exchange grooves 121 and the heat exchange strips 31, the contact area between the heat-conducting bushing 3 and the blind tube shell can be increased, thereby accelerating the heat conduction speed, so that the temperature sensor 6 can sense in time when the temperature of the liquid inside the liquid storage tank changes rapidly.

[0041] In addition, in order to improve the heat exchange effect between the blind tube shell and the liquid in the liquid storage tank, a plurality of heat-conducting grooves 13 may be provided on the outer wall of the receiving tube. The provision of the heat-conducting grooves 13 can not only increase the contact area between the blind tube shell and the liquid, but also reduce the thickness of the receiving tube, thereby shortening the time taken for heat to be transferred to the heat-conducting bushing 3, thereby improving the temperature measurement sensitivity of the device.

[0042] As another optional implementation of this embodiment, in order to prevent the temperature inside the blind tube housing from being affected by the external environment, the temperature-sensitive blind tube with sensitive temperature measurement may also include a sealing component. Figure 5As shown, the sealing assembly is provided with a receiving hole 72 for receiving the data line 61, and the sealing assembly includes a sealing gasket 71 and a sealing plug 73. During assembly, the sealing gasket 71 should be arranged between the threaded joint 41 and the receiving section 12, the sealing plug 73 should be arranged on the bottom surface of the sealing gasket 71, and the sealing plug 73 will be inserted into the receiving section 12. By providing the sealing assembly, the joint gap between the mounting seat 4 and the receiving tube can be blocked, thereby preventing heat exchange between the internal environment of the blind tube shell and the external environment along the joint gap.

[0043] In addition, to facilitate the assembly of the sealing assembly by the staff, a mounting cutout 74 communicating with the receiving hole 72 can be provided on the sealing assembly. During assembly, the staff can use the mounting cutout 74 to deform the sealing assembly, thereby facilitating the data line 61 to enter the receiving hole 72.

[0044] The effects of the above scheme are described below:

[0045] This embodiment provides a temperature-sensitive blind tube with sensitive temperature measurement, which can collect condensed water through a water-absorbing sponge column and a liquid collection cavity, thereby preventing the condensed water from contacting the temperature sensor, thereby improving the sensitivity of the temperature measurement result. Secondly, this device can increase the contact area between the heat-conducting bushing and the blind tube shell through the heat exchange groove and the heat exchange strip, thereby improving the heat exchange efficiency. In addition, this device can also block the splicing gap through the sealing component, thereby preventing heat exchange between the inside of the blind tube shell and the external environment.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A temperature-sensitive blind tube with sensitive temperature measurement, characterized in that: include: A blind tube shell, the blind tube shell comprising a receiving tube and a plugging head (2), a plurality of heat exchange grooves (121) being arranged on the inner side wall of the receiving tube, and the plurality of heat exchange grooves (121) being arranged in a ring shape around the axis of the receiving tube; the plugging head (2) being detachably arranged at the bottom of the receiving tube, a bearing protrusion (21) being arranged on the plugging head (2), the bearing protrusion (21) being inserted into the interior of the receiving tube, a receiving groove (22) being arranged on the top surface of the bearing protrusion (21), and a water-absorbing sponge column (23) being arranged in the receiving groove (22); A heat-conducting bushing (3), the heat-conducting bushing (3) being detachably arranged inside the containing tube, a plurality of heat-exchange strips (31) being arranged on the outer wall of the heat-conducting bushing (3), the plurality of heat-exchange strips (31) being arranged one-to-one inside the plurality of heat-exchange grooves (121), and a liquid collecting cavity being formed between the bottom end of the heat-conducting bushing (3) and the top surface of the bearing protrusion (21); A temperature sensing component, the temperature sensing component comprises a mounting seat (4), a connecting pipe (5) and a temperature sensor (6) connected in sequence from top to bottom, the mounting seat (4) is detachably arranged on the top of the receiving tube, the temperature sensor (6) is placed inside the heat-conducting bushing (3), and a data line (61) of the temperature sensor (6) extends along the connecting pipe (5) to the outside of the mounting seat (4).

2. A temperature-sensitive blind tube with sensitive temperature measurement according to claim 1, characterized in that: A plurality of flow guide holes (32) are provided on the top surface of the heat-conducting bushing (3), the plurality of flow guide holes (32) are arranged in a ring shape around the axis of the heat-conducting bushing (3), and the bottom end of each flow guide hole (32) is connected to the liquid collecting cavity.

3. A temperature-sensitive blind tube with sensitive temperature measurement according to claim 2, characterized in that: An annular liquid collecting groove (33) is provided on the top surface of the heat-conducting bushing (3), and the top ends of the plurality of flow guide holes (32) are all connected to the annular liquid collecting groove (33).

4. The temperature-sensitive blind tube with sensitive temperature measurement according to claim 1 is characterized in that: The accommodating tube comprises a connecting section (11) and an accommodating section (12); the connecting section (11) is arranged at the top of the accommodating section (12); the inner diameter of the connecting section (11) is larger than the inner diameter of the accommodating section (12); the outer diameter of the connecting section (11) is larger than the outer diameter of the accommodating section (12); an outer thread is provided on the outer side wall of the connecting section (11); and an inner thread is provided on the inner side wall of the connecting section (11); a threaded joint (41) is provided on the bottom surface of the mounting seat (4); and the outer diameter of the threaded joint (41) is equal to the inner diameter of the connecting section (11).

5. A temperature-sensitive blind tube with sensitive temperature measurement according to claim 4, characterized in that: The temperature-sensitive temperature blind tube also includes a sealing component, and a receiving hole (72) for receiving a data line (61) is provided on the sealing component; the sealing component includes a sealing gasket (71) and a sealing plug (73), the sealing gasket (71) is arranged between the threaded joint (41) and the receiving section (12), the sealing plug (73) is arranged on the bottom surface of the sealing gasket (71), and the sealing plug (73) is inserted into the receiving section (12).

6. A temperature-sensitive blind tube with sensitive temperature measurement according to claim 5, characterized in that: The sealing assembly is provided with a mounting cutout (74), and the mounting cutout (74) is communicated with the accommodating hole (72).

7. The temperature-sensitive blind tube with sensitive temperature measurement according to claim 4 is characterized in that: The bottom of the containing section (12) is provided with an arc-shaped liquid collecting surface (122) with the arc center facing upward.

8. The temperature-sensitive blind tube with sensitive temperature measurement according to claim 1, characterized in that: A plurality of heat-conducting grooves (13) are provided on the outer side wall of the accommodation tube.

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