Flowmeter with heat insulation property

Abstract

The utility model relates to a flowmeter with a heat insulation property, an air bag is arranged on the peripheral surface of a test tube in a contact manner, and liquid alcohol is filled in the air bag; shells are installed on the periphery of the air bag at intervals, a plurality of windows are formed in the circumferential faces of the shells, heat insulation plates are movably arranged in the windows, the outer ends of the heat insulation plates are located outside the windows, the inner ends of the heat insulation plates penetrate through the windows to be fixedly connected with baffles, and the baffles are larger than the windows in size so that the baffles can be limited in the shells; through holes are formed in the shell and the air bag, and the supporting columns penetrate through the through holes. The heat insulation plate ejection structure driven by alcohol vaporization is arranged on the periphery of the test tube, the ejected heat insulation plate can prevent hands from getting close to the test tube, compared with a heat insulation film wrapping mode, the heat insulation effect can be remarkably improved, and workers are effectively prevented from being scalded by mistaken touch. In addition, a conspicuous display area is arranged on the side face of the heat insulation plate and can warn the fluid temperature, and workers are helped to judge.

Description

Technical Field

[0001] The utility model relates to the field of flow meters, in particular to a flow meter with heat insulation. Background Art

[0002] Flowmeters are used to measure parameters such as the instantaneous velocity and vibration frequency of fluid flowing through a test tube. Fluid temperatures can sometimes reach over 100°C. Existing flowmeters primarily use thermal insulation to prevent heat transfer to the meter head, thereby damaging the delicate electronics within. Few flowmeters provide thermal insulation for the test tube itself, and they also lack appropriate warning devices. Consequently, workers working nearby are at high risk of burns from accidentally touching the test tube. Utility Model Content

[0003] The purpose of this application is to provide a flow meter with thermal insulation, aiming to solve the problems existing in the prior art.

[0004] An embodiment of the present application provides a flow meter with heat insulation, which includes a meter head, a support column and a test tube. An airbag is installed in contact with the outer peripheral surface of the test tube, and the airbag is filled with liquid alcohol. An outer shell is installed at intervals on the outer periphery of the airbag, and a plurality of windows are provided on the outer periphery of the outer shell. An insulation board is movably provided in the window, and the outer end of the insulation board is located outside the window, and the inner end of the insulation board passes through the window and is fixedly connected to the baffle. The size of the baffle is larger than the size of the window, so that the baffle is limited in the outer shell. Through holes are provided on the outer shell and the airbag for the support column to pass through.

[0005] Furthermore, a heat insulation board is vertically inserted into the window, and a plurality of heat insulation boards are radially arranged along the circumference of the shell; the length of the heat insulation board is equal to the distance between the shell and the deflated airbag.

[0006] Furthermore, a display area is provided on the side of the heat insulation board, the length of which is divided into multiple sections, and different display areas are distinguished by colors or scale lines.

[0007] Furthermore, the outer shell is formed by splicing two semicircular half shells.

[0008] Furthermore, screw holes are provided on the side of the half shell opposite to the test tube flange, and the test tube flange and the half shell are fixed together by bolts.

[0009] Furthermore, the two half shells are respectively a left half shell and a right half shell, the bottoms of the left half shell and the right half shell are connected by a hinge, and the tops of the left half shell and the right half shell are connected by bolts.

[0010] The beneficial effects of this utility model include: a heat shield ejection structure driven by alcohol vaporization is installed around the periphery of the test tube. The ejected heat shield blocks hands from approaching the test tube, significantly improving the insulation effect compared to wrapping with insulation film, effectively preventing workers from accidentally touching and scalding. Furthermore, a prominent display area on the side of the heat shield provides a warning of the fluid temperature, helping workers make informed judgments. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the present utility model.

[0013] Figure 3 Schematic diagram of the structure of the shell and heat insulation board.

[0014] Figure 4 Schematic diagram of the structure of the heat insulation board.

[0015] In the picture:

[0016] 1. Meter head; 2. Support column; 3. Test tube; 4. Air bag; 5. Alcohol; 6. Housing; 7. Window; 8. Heat shield; 9. Baffle; 10. Through hole; 11. Display area. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] like Figures 1-4 The figure shows a heat-insulating flowmeter comprising a meter head 1, a support column 2, and a test tube 3 with flanges mounted at both ends. An airbag 4 is mounted on the outer circumference of the test tube 3. The outer wall of the airbag 4 contacts the outer surface of the test tube 3 to facilitate heat transfer. The airbag 4 is filled with liquid alcohol 5. When the alcohol 5 evaporates at 78.3°C, the volume of the vaporized alcohol 5 increases, causing the airbag 4 to expand.

[0019] The airbag 4 is fitted with a housing 6 at intervals around its periphery. Multiple windows 7 are defined on the periphery of the housing 6, and heat shields 8 are movably positioned within the windows 7. The outer ends of the heat shields 8 are positioned outside the windows 7, while the inner ends of the heat shields 8 pass through the windows 7 and are fixedly connected to baffles 9. The baffles 9 are larger than the windows 7, constraining them within the housing 6. The length of the heat shields 8 is equal to the distance between the housing 6 and the deflated airbag 4. Similar to the structure of an inflation shaft, when the airbag 4 is deflated, the heat shields 8 are completely retracted within the windows 7. When the airbag 4 inflates, it pushes the heat shields 8 out of the windows 7, increasing the outer diameter of the housing 6.

[0020] Insulation panels 8 are vertically inserted into windows 7, and multiple insulation panels 8 are radially arranged along the circumference of housing 6. The insulation panels 8 and windows 7 can be arranged in a single row or multiple rows, preferably densely packed so that when the insulation panels 8 are extended, a person holding the panels cannot touch housing 6. There is no specific limit on the number of insulation panels.

[0021] During use, when the temperature of the test fluid is higher than the vaporization temperature of the alcohol 5, the vaporization of the alcohol 5 causes the airbag 4 to expand, and the heat insulation board 8 is pushed out. Therefore, when a person holds the test tube 3 with his hand or touches it with the back of his hand, he can only touch the heat insulation board 8 but not the outer shell 6. In this way, the heat of the test tube 3 is isolated and accidental burns will not occur.

[0022] like Figure 1 and Figure 2 As shown, both the housing 6 and the airbag 4 have through-holes 10 for the support column 2 to pass through. The housing 6 is constructed from two semicircular halves. In one installation configuration, screw holes are provided on the side of the housing 6 opposite the flange of the test tube 3, and the flange of the test tube 3 and the housing are secured together by bolts. In another installation configuration, the two halves are a left and a right, respectively. The bottoms of the left and right halves are connected by a hinge (e.g., a hinge), and the tops of the left and right halves are bolted together, allowing the two halves to close over the test tube 3 and enclose the airbag 4.

[0023] like Figure 4 As shown, the side of the heat shield 8 is provided with a display area 11 that divides the length into multiple sections. Different display areas 11 are distinguished by color or scale lines. For example, from top to bottom, the colors of the display area 11 can be white, green, yellow, red, etc. The greater the degree of inflation of the airbag 4, the longer the heat shield 8 extends, and the darker the color of the exposed display area 11. This allows personnel to quickly determine the extended length of the heat shield 8 and thus predict the flow temperature in the test tube 3.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as exemplary and non-restrictive.

Claims

1. A flow meter with thermal insulation, comprising a meter head, a support column and a test tube, characterized in that: An airbag is installed in contact with the outer circumference of the test tube, and the airbag is filled with liquid alcohol; an outer shell is installed at intervals on the outer circumference of the airbag, and a plurality of windows are opened on the circumference of the outer shell. A heat insulation board is movably arranged in the window, and the outer end of the heat insulation board is located outside the window, and the inner end of the heat insulation board passes through the window and is fixedly connected to the baffle. The size of the baffle is larger than the size of the window so that the baffle is limited in the outer shell; through holes are opened on the outer shell and the airbag for the support column to pass through.

2. The heat-insulating flowmeter according to claim 1, wherein: The heat insulation board is vertically inserted into the window, and a plurality of heat insulation boards are radially arranged along the peripheral surface of the shell; the length of the heat insulation board is equal to the distance between the shell and the deflated airbag.

3. The heat-insulating flowmeter according to claim 1, wherein: The side of the heat insulation board is provided with a display area whose length is divided into multiple sections, and different display areas are distinguished by colors or scale lines.

4. The heat-insulating flowmeter according to claim 1, wherein: The outer shell is formed by splicing two semicircular half shells.

5. The heat-insulating flowmeter according to claim 4, wherein: A screw hole is provided on the side of the half shell opposite to the test tube flange, and the test tube flange and the half shell are fixed together by bolts.

6. The heat-insulating flowmeter according to claim 4, wherein: The two half shells are respectively a left half shell and a right half shell, the bottoms of the left half shell and the right half shell are connected by a hinge, and the tops of the left half shell and the right half shell are connected by bolts.

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