Pitot tube anemometer rod

Abstract

The embodiment of the invention provides a pitot tube anemometer rod. The pitot tube anemometer rod comprises a first sleeve, a second sleeve, a pitot tube, a rubber hose and a length adjusting assembly. The first sleeve is telescopically sleeved in the second sleeve; the first end of the pitot tube is used for being inserted into a flue to be detected, the second end of the pitot tube is fixed to the second sleeve and communicated with the rubber hose, and the rubber hose is arranged in the first sleeve and the second sleeve; the length adjusting assembly is arranged on the first sleeve and the second sleeve and used for adjusting the length of the rubber hose when the first sleeve extends out of or retracts into the second sleeve. The wind measuring rod becomes a whole, the assembling process is omitted, the rubber hose is arranged in the sleeve and is not prone to being damaged in a severe testing environment, and the problems that a traditional pitot tube wind measuring rod is difficult to assemble, a long rod is not prone to being transported, precision is low, and a fixed position is prone to being disengaged in the using process are solved.

Description

Technical Field

[0001] The disclosed embodiments belong to the field of measurement, and specifically relate to a Pitot tube wind measuring rod. Background Art

[0002] At present, in the field of dust collector performance testing in thermal power plants, the Pitot tube is mainly used in conjunction with a micromanometer to measure parameters such as flue gas dynamic pressure, static pressure and temperature in the flue, and to calculate flue gas flow rate and flue gas flow rate. According to the test specifications, the pressure and temperature parameter measurements require the use of a grid method, and the Pitot tube needs to be sent into the dust collector inlet and outlet flues at a distance of about 0m to 4m. The Pitot tube itself is only about 80cm long and is made of stainless steel with good thermal conductivity. It needs to be connected to a rubber hose to fix it on a long pole. There are problems such as the long pole being difficult to transport, the fixing process being complicated, the temporary marking scale being not accurate, and the Pitot tube being easily detached in high-temperature and high-velocity flue gas if it is not firmly fixed.

[0003] In view of the above problems, it is necessary to propose a pitot tube wind measuring rod which is reasonably designed and can effectively solve the above problems. Summary of the invention

[0004] The embodiment of the present disclosure aims to solve at least one of the technical problems existing in the prior art and provides a Pitot tube wind measuring rod.

[0005] The present disclosure provides a pitot tube wind measuring rod, comprising:

[0006] A first sleeve and a second sleeve, wherein the first sleeve is telescopically sleeved in the second sleeve;

[0007] A pitot tube and a rubber hose, wherein the first end of the pitot tube is used to be inserted into the flue to be detected, the second end of the pitot tube is fixed to the second sleeve and communicated with the rubber hose, and the rubber hose is arranged in the first sleeve and the second sleeve;

[0008] The length adjustment assembly is arranged on the first sleeve and the second sleeve, and is used for adjusting the length of the rubber hose when the first sleeve is extended or retracted to the second sleeve.

[0009] Optionally, the length adjustment assembly includes a slide slot, two sliders and a fixed block;

[0010] The slide groove is arranged on the side walls of the first sleeve and the second sleeve;

[0011] The fixing block is arranged on the inner side wall of the second sleeve;

[0012] The two sliders are slidably arranged in the slide groove, and the rubber hose bypasses the fixed block and is clamped between the two sliders; wherein,

[0013] When the first sleeve extends to the second sleeve, the two sliders slide in the extending direction of the first sleeve, so that the rubber hose extends into the first sleeve and the second sleeve;

[0014] When the first sleeve is retracted into the second sleeve, the two sliders slide in the retracting direction of the first sleeve to retract the rubber hose into the second sleeve.

[0015] Optionally, the first end of the slider is slidably disposed in the slide groove, and the second end of the slider passes through and extends out of the side walls of the first sleeve and the second sleeve.

[0016] Optionally, the chute includes a first sub-chute and a second sub-chute;

[0017] The first sub-slide groove is arranged on the side wall of the first sleeve, and the second sub-slide groove is arranged on the side wall of the second sleeve; wherein the first sub-slide groove and the second sub-slide groove correspond to each other and are connected.

[0018] Optionally, buckles are provided at both ends of the slide groove, wherein the slider is locked in the buckles when sliding to the end of the slide groove.

[0019] Optionally, when the first sleeve is retracted into the second sleeve, the rubber hose is distributed in an S shape in the second sleeve.

[0020] Optionally, when the first sleeve is retracted into the second sleeve, the length of the wind measuring rod ranges from 1.5 m to 2.5 m.

[0021] Optionally, the outer side wall of the second sleeve is marked with a preset accuracy.

[0022] The pitot tube wind measuring rod of the disclosed embodiment is telescopically mounted in the second sleeve through the first sleeve, and the length of the entire wind measuring rod can be adjusted by telescoping the first sleeve; by setting the length adjustment assembly between the first sleeve and the second sleeve, the length of the rubber hose can be adjusted when the first sleeve is extended or retracted to the second sleeve. The wind measuring rod itself becomes an integral part, eliminating the assembly process, and the rubber hose is inside the sleeve, which is not easy to be damaged in a harsh test environment, solving the problems of the traditional pitot tube wind measuring rod being difficult to assemble, the long rod being difficult to transport, the low precision, and the easy detachment of the fixing part during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a pitot tube wind measuring rod according to an embodiment of the present disclosure;

[0024] Figure 2 This is a partial structural schematic diagram of a Pitot tube wind measuring rod according to one embodiment of the present disclosure. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solutions of the embodiments of the present disclosure, the embodiments of the present disclosure are further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] like Figure 1 and Figure 2 As shown, an embodiment of the present disclosure provides a pitot tube wind measuring rod 100, comprising a first sleeve 110, a second sleeve 120, a pitot tube 130, a rubber hose 140 and a length adjustment assembly.

[0027] The first sleeve 110 is telescopically sleeved in the second sleeve 120. In other words, the first sleeve 110 is an inner sleeve, and the second sleeve 120 is an outer sleeve.

[0028] The first end of the Pitot tube 130 is used to be inserted into the flue to be detected to collect smoke. The second end of the Pitot tube 130 is fixed to the second sleeve 120 and communicated with the rubber hose 140. The rubber hose 140 is arranged in the first sleeve 110 and the second sleeve 120.

[0029] Specifically, the first end of the rubber hose 140 is connected to the pitot tube 130, and the second end of the rubber hose 140 is used to communicate with the detection instrument. The pitot tube 130 is made of stainless steel and fixed to the end of the second sleeve 120 away from the first sleeve 110.

[0030] The length adjustment assembly is disposed at the first sleeve 110 and the second sleeve 120 , and is used to adjust the length of the rubber hose 140 when the first sleeve 110 is extended or retracted into the second sleeve 120 .

[0031] Specifically, when the first sleeve 110 extends to the second sleeve 120, the length adjustment assembly adjusts the rubber hose 140 to extend to the first sleeve 110 and the second sleeve. When the first sleeve 110 is retracted to the second sleeve 120, the length adjustment assembly adjusts the rubber hose 140 to be retracted into the second sleeve 120.

[0032] The pitot tube wind measuring rod of the disclosed embodiment is telescopically mounted in the second sleeve through the first sleeve, and the length of the entire wind measuring rod can be adjusted by telescoping the first sleeve; by setting the length adjustment assembly between the first sleeve and the second sleeve, the length of the rubber hose can be adjusted when the first sleeve is extended or retracted to the second sleeve. The wind measuring rod itself becomes an integral part, eliminating the assembly process, and the rubber hose is inside the sleeve, which is not easy to be damaged in a harsh test environment, solving the problems of the traditional pitot tube wind measuring rod being difficult to assemble, the long rod being difficult to transport, the low precision, and the easy detachment of the fixing part during use.

[0033] For example, Figure 2As shown, the length adjustment assembly includes a slide groove, two sliders 151 and a fixing block 152 .

[0034] The slide groove is provided on the side wall of the first sleeve 110 and the second sleeve 120. The fixing block 152 is provided on the inner side wall of the second sleeve 120. The two sliders 151 are slidably provided in the slide groove, and the rubber hose 140 bypasses the fixing block 152 and is sandwiched between the two sliders 151.

[0035] When the first sleeve 110 extends to the second sleeve 120, the two sliders 151 slide in the extending direction of the first sleeve 110, so that the rubber hose 140 extends into the first sleeve 110 and the second sleeve 120.

[0036] When the first sleeve 110 is retracted into the second sleeve 120 , the two sliders 151 slide in the retracting direction of the first sleeve 110 , so that the rubber hose 140 is retracted into the second sleeve 120 .

[0037] Specifically, when measuring flue gas dynamic pressure, static pressure, temperature and other parameters in the flue, the first sleeve 110 is extended to the second sleeve 120 to increase the length of the wind measuring rod, wherein the length of the entire wind measuring rod can reach 4m, meeting the conventional wind measurement requirements of the power plant. When the first sleeve 110 is withdrawn, the two sliders 151 slide in the extension direction of the first sleeve 110, and the two sliders 151 sandwich the rubber hose 140 and extend to the first sleeve 110 and the second sleeve 120 in the extension direction of the first sleeve 110, so that the rubber hose 140 is expanded, the airflow can pass more smoothly, and the measurement error is reduced.

[0038] After completing the measurement or transportation process, the first sleeve 110 is retracted into the second sleeve 120 to reduce the length of the entire wind measuring rod. The two sliders 151 slide in the retracting direction of the first sleeve 110 to retract the rubber hose 140 around the fixing block 152 into the second sleeve 120.

[0039] Exemplarily, the first end of the slider is slidably disposed in the slide groove, and the second end of the slider passes through and extends out of the side walls of the first sleeve 110 and the second sleeve 120 .

[0040] In this embodiment, the length of the rubber hose 140 can be adjusted by moving the slider 151 outside the first sleeve 110 and the second sleeve 120 , which is easy to operate.

[0041] Exemplarily, the slide groove includes a first sub-slide groove and a second sub-slide groove. The first sub-slide groove is arranged on the side wall of the first sleeve 110, and the second sub-slide groove is arranged on the side wall of the second sleeve 120; wherein the first sub-slide groove and the second sub-slide groove correspond to and are connected. In this way, when the first sleeve 110 is extended or retracted to the second sleeve 120, the slider 151 can slide in the corresponding slide groove to achieve the length adjustment of the rubber hose 140.

[0042] Exemplarily, buckles are provided at both ends of the slide groove, wherein when the slider 151 slides to the end of the slide groove, it is locked in the buckle to fix the slider 151, and then fix the rubber hose 140 to prevent the rubber hose 140 from bending, thereby ensuring the normal collection of smoke.

[0043] For example, Figure 2 As shown, when the first sleeve 110 is retracted into the second sleeve 120 , the rubber hose 140 is distributed in an S shape in the second sleeve 120 , which facilitates the extension and retraction of the rubber hose 140 .

[0044] Exemplarily, when the first sleeve 110 is retracted into the second sleeve 120, the length of the wind measuring rod ranges from 1.5m to 2.5m. Preferably, in this embodiment, the length of the wind measuring rod is 2m for easy transportation.

[0045] Exemplarily, the outer side wall of the second sleeve 120 is marked with a preset accuracy. Specifically, the surface of the second sleeve 120 can be marked with accuracy, and it is no longer necessary to mark it after the assembly is completed on site, thereby ensuring the accuracy of the measurement.

[0046] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the embodiments of the present disclosure, but the embodiments of the present disclosure are not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the embodiments of the present disclosure, and these modifications and improvements are also considered to be within the protection scope of the embodiments of the present disclosure.

Claims

1. A pitot tube wind measuring rod, characterized in that: include: A first sleeve and a second sleeve, wherein the first sleeve is telescopically sleeved in the second sleeve; A pitot tube and a rubber hose, wherein the first end of the pitot tube is used to be inserted into the flue to be detected, the second end of the pitot tube is fixed to the second sleeve and communicated with the rubber hose, and the rubber hose is arranged in the first sleeve and the second sleeve; The length adjustment assembly is arranged on the first sleeve and the second sleeve, and is used for adjusting the length of the rubber hose when the first sleeve is extended or retracted to the second sleeve.

2. The Pitot tube wind measuring rod according to claim 1, characterized in that: The length adjustment assembly includes a slide slot, two sliders and a fixed block; The slide groove is arranged on the side walls of the first sleeve and the second sleeve; The fixing block is arranged on the inner side wall of the second sleeve; The two sliders are slidably arranged in the slide groove, and the rubber hose bypasses the fixed block and is clamped between the two sliders; wherein, When the first sleeve extends to the second sleeve, the two sliders slide in the extending direction of the first sleeve, so that the rubber hose extends into the first sleeve and the second sleeve; When the first sleeve is retracted into the second sleeve, the two sliders slide in the retracting direction of the first sleeve to retract the rubber hose into the second sleeve.

3. The Pitot tube wind measuring rod according to claim 2, characterized in that: The first end of the slider is slidably disposed in the slide groove, and the second end of the slider passes through and extends out of the side walls of the first sleeve and the second sleeve.

4. The Pitot tube wind measuring rod according to claim 2, characterized in that: The chute includes a first sub-chute and a second sub-chute; The first sub-slide groove is arranged on the side wall of the first sleeve, and the second sub-slide groove is arranged on the side wall of the second sleeve; wherein the first sub-slide groove and the second sub-slide groove correspond to each other and are connected.

5. The Pitot tube wind measuring rod according to claim 2, characterized in that: Buckles are provided at both ends of the slide slot, wherein the slider is locked in the buckles when sliding to the end of the slide slot.

6. The Pitot tube wind measuring rod according to claim 2, characterized in that: When the first sleeve is retracted into the second sleeve, the rubber hose is distributed in an S shape in the second sleeve.

7. The Pitot tube wind measuring rod according to any one of claims 1 to 6, characterized in that: When the first sleeve is retracted into the second sleeve, the length of the wind measuring rod ranges from 1.5m to 2.5m.

8. The Pitot tube wind measuring rod according to any one of claims 1 to 6, characterized in that: The outer side wall of the second sleeve is marked with a preset accuracy.

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