Differential pressure flowmeter with protection function

Abstract

The utility model discloses a differential pressure type flowmeter with a protection function, and relates to the technical field of differential pressure type flowmeters. The measuring device comprises a connecting pipe, a flow hole is formed in the top of the connecting pipe, and a drainage pipe used for guiding fluid to flow through the measuring device is connected to the surface of the flow hole in a penetrating mode. Through the arrangement of the heating assembly, when the pressure difference of the fluid in the pipeline is measured and the external environment temperature is too low, the fluid in the connecting pipe is frozen, at the moment, the temperature controller is started to enable the storage battery and the heating plate to be powered on, and the temperature controller is used for regulating and controlling the heating temperature of the heating plate to a proper temperature; the heating plate is arranged on the inner wall of the first arc-shaped plate and attached to the outer wall of the connecting pipe, so that heat is conducted into the connecting pipe, the situation that a water source cannot circulate due to freezing caused by the fact that the temperature of the connecting pipe is too low can be prevented, and then the protection performance of differential pressure measurement is improved.

Description

Technical Field

[0001] The utility model belongs to the field of differential pressure flowmeters, and in particular relates to a differential pressure flowmeter with a protective function. Background Art

[0002] When the differential pressure flow meter of the prior art is in use, when the external ambient temperature is too low, the internal fluid freezes and cannot circulate, which makes it impossible to measure the differential pressure, thereby reducing the protection of the differential pressure flow meter. When the fluid passes through, there are certain impurities inside, which will affect the accuracy of the differential pressure measurement data.

[0003] The Chinese patent with the publication number CN220230588U discloses a differential pressure flowmeter, including a flowmeter body, on which the first pressure-taking tube, a throttling device and a second pressure-taking tube are arranged in sequence, the throttling device includes a contraction section, a throat section and a diffusion section, the taper of the inner cavity of the contraction section gradually decreases along the direction from the first pressure-taking tube to the second pressure-taking tube, the cross section of the diffusion section close to one end of the second pressure-taking tube and the cross section of the contraction section both adopt an arc-shaped structure, the number of the first pressure-taking tube and the second pressure-taking tube are both several, the outer ends of several first pressure-taking tubes are provided with a first equalizing pressure ring, the outer ends of several second pressure-taking tubes are provided with a second equalizing pressure ring, the first equalizing pressure ring and the second equalizing pressure ring are connected through a differential pressure measuring tube, and a differential pressure transmitter is arranged on the differential pressure measuring tube. The turbulence generated by the liquid medium containing particulate impurities in the process of passing through the throttling device is reduced to improve the stability of data feedback. The utility model is easy to adjust, install and use, and has broad market prospects.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a pressure differential flow meter with a protective function, which solves the problem raised in the above background technology that when the external ambient temperature is too low, the internal fluid freezes and cannot circulate, which in turn causes the pressure differential to be unable to be measured, thereby reducing the protectiveness of the pressure differential flow meter, and when the fluid passes through, there are certain impurities inside, which will affect the accuracy of the pressure differential measurement data.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] A differential pressure flowmeter with a protective function comprises: a connecting pipe, a flow hole is opened on the top of the connecting pipe, a drainage pipe for guiding fluid to flow through a measuring device is connected through the surface of the flow hole, and a heating component for heating to prevent the fluid from freezing is arranged on the surface of the connecting pipe, a first flange is arranged at one end of the connecting pipe, and a filter component for filtering impurities inside the fluid is arranged on the surface of the first flange.

[0008] Optionally, the heating assembly includes a first arc-shaped plate arranged on the surface of the connecting pipe, the inner wall of the first arc-shaped plate is provided with a square groove, a heating plate for heating is arranged inside the square groove, and a connecting plate is fixedly connected to the surface of the first arc-shaped plate.

[0009] Optionally, one end of the connecting plate is fixedly connected to a second arc plate, a battery is arranged on the surface of the second arc plate, and a temperature controller for regulating the heating temperature of the heating plate is arranged on the bottom side of the battery, and the surface of the temperature controller is electrically connected to the heating plate, and one side of the battery is electrically connected to the temperature controller.

[0010] Optionally, the filter assembly includes a second flange plate arranged on the surface of the first flange plate, a fluid pipe is connected to one side of the second flange plate, a slide groove is provided on the inner wall of the fluid pipe, a cartridge rack is slidably connected to the inside of the slide groove, and a filter net for filtering impurities inside the fluid is provided inside the cartridge rack.

[0011] Optionally, a differential pressure meter for measuring the pressure difference when the fluid flows through and converting it into a corresponding flow signal is provided on the top of the drainage tube, and a protective cover is provided on the surface of the differential pressure meter.

[0012] Optionally, the other end of the connecting pipe is provided with a third flange for connecting to a water pipe, and the surface of the third flange is provided with a plurality of through holes for connection in a circular array.

[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0014] 1. By setting the heating component and the filtering component, when the pressure difference of the pipeline fluid is measured, when the external environment temperature is too low, the fluid inside the connecting pipe will freeze. At this time, the temperature controller is turned on to energize the battery and the heating plate, and the heating temperature of the heating plate is adjusted to an appropriate temperature by using the temperature controller. Since the heating plate is arranged on the inner wall of the first arc plate and fits the outer wall of the connecting pipe, the heat is conducted to the inside of the connecting pipe, which can prevent the temperature of the connecting pipe from being too low and causing freezing and inability to circulate water, thereby improving the protection of the pressure difference measurement. At the same time, when the fluid flows, it is affected by the filter and its internal impurities can be filtered out. At the same time, the staff can regularly disassemble the first flange and the second flange, pull out the cylinder rack, and clean the filter, thereby improving the convenience of cleaning and the accuracy of the pressure difference measurement.

[0015] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] In the figure:

[0018] Figure 1 It is a schematic diagram of the overall structure;

[0019] Figure 2 It is a schematic diagram of the connecting pipe structure;

[0020] Figure 3 It is a schematic diagram of the heating component structure;

[0021] Figure 4 Schematic diagram of the filter component structure.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Connecting pipe; 2. Flow hole; 3. Drainage pipe; 4. Heating assembly; 41. First arc plate; 42. Square groove; 43. Heating plate; 44. Connecting plate; 441. Second arc plate; 442. Storage battery; 443. Temperature controller; 5. First flange; 6. Filter assembly; 61. Second flange; 62. Fluid pipe; 63. Cylinder stand; 64. Filter screen; 7. Pressure difference measuring meter; 8. Third flange.

[0024] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0025] The utility model will now be further described in detail with reference to the accompanying drawings.

[0026] See also Figure 1-4 As shown, in this embodiment, a differential pressure flowmeter with a protective function is provided, including: a connecting pipe 1, a flow hole 2 is opened on the top of the connecting pipe 1, and a drainage pipe 3 for guiding the fluid to flow through the measuring device is connected to the surface of the flow hole 2, and a heating component 4 for heating to prevent the fluid from freezing is arranged on the surface of the connecting pipe 1. When the differential pressure of the pipeline fluid is measured, when the external environment temperature is too low, the fluid inside the connecting pipe 1 is frozen. At this time, the temperature controller 443 is turned on to energize the battery 442 and the heating plate 43, and the temperature controller 443 is used to adjust the heating temperature of the heating plate 43 to a suitable temperature. Since the heating plate 43 is arranged on the inner wall of the first arc plate 41 and fits with the outer wall of the connecting pipe 1, the heat is conducted to the inside of the connecting pipe 1, which can prevent the temperature of the connecting pipe 1 from being too low and causing freezing and inability to circulate water, thereby improving the protectiveness of the differential pressure measurement. A first flange 5 is arranged at one end of the connecting pipe 1, and a filter component 6 for filtering impurities inside the fluid is arranged on the surface of the first flange 5.

[0027] One aspect of the application of this embodiment is that when the fluid flows, it is affected by the filter 64 and its internal impurities can be filtered out. At the same time, the staff can regularly disassemble the first flange 5 and the second flange 61, pull out the cylinder rack 63, and clean the filter 64, thereby improving the convenience of cleaning and the accuracy of the pressure difference measurement. It should be noted that all electrical equipment involved in this application can be powered by batteries or external power supplies.

[0028] like Figure 1 As shown, the top of the drainage tube 3 of this embodiment is provided with a differential pressure measuring meter 7 for measuring the pressure difference when the fluid flows through and converting it into a corresponding flow signal. The surface of the differential pressure measuring meter 7 is provided with a protective cover. The setting of the differential pressure measuring meter 7 can measure the pressure difference when the fluid flows through and convert it into a corresponding flow signal.

[0029] like Figure 2 As shown, the other end of the connecting pipe 1 of this embodiment is provided with a third flange 8 for connecting to a water pipe. The surface of the third flange 8 is provided with a plurality of through holes for connection in a ring array. The setting of the third flange 8 allows the device to be connected to other water pipes through the third flange 8, and the fluid pressure difference in the water pipe can be measured, thereby improving the convenience of connection.

[0030] Embodiment 1:

[0031] In this embodiment, if Figure 3As shown, the heating assembly 4 includes a first curved plate 41 arranged on the surface of the connecting pipe 1, the inner wall of the first curved plate 41 is provided with a square groove 42, a heating plate 43 for heating is arranged inside the square groove 42, a connecting plate 44 is fixedly connected to the surface of the first curved plate 41, one end of the connecting plate 44 is fixedly connected to the second curved plate 441, a battery 442 is arranged on the surface of the second curved plate 441, and a temperature controller 443 for regulating the heating temperature of the heating plate 43 is arranged on the bottom side of the battery 442, and the surface of the temperature controller 443 is electrically connected to the heating plate 43, and one end of the battery 442 is fixedly connected to the second curved plate 441, and a battery 442 is arranged on the bottom side of the battery 442. The first arc plate 41 is electrically connected to the temperature controller 443 on the side. When the pressure difference of the pipeline fluid is measured, when the external ambient temperature is too low, the fluid inside the connecting pipe 1 is frozen. At this time, the temperature controller 443 is turned on to energize the battery 442 and the heating plate 43, and the heating temperature of the heating plate 43 is adjusted to an appropriate temperature using the temperature controller 443. Since the heating plate 43 is arranged on the inner wall of the first arc plate 41 and fits the outer wall of the connecting pipe 1, the heat is conducted to the inside of the connecting pipe 1, which can prevent the temperature of the connecting pipe 1 from being too low and causing freezing and inability to circulate water, thereby improving the protection of the pressure difference measurement.

[0032] Embodiment 2:

[0033] In this embodiment, if Figure 4 As shown, the filter assembly 6 includes a second flange 61 arranged on the surface of the first flange 5, and a fluid pipe 62 is connected to one side of the second flange 61. A slide groove is provided on the inner wall of the fluid pipe 62, and a cartridge rack 63 is slidably connected inside the slide groove. A filter screen 64 for filtering impurities inside the fluid is provided inside the cartridge rack 63. When the fluid flows, it is affected by the filter screen 64 and the impurities inside can be filtered out. At the same time, the staff can regularly disassemble the first flange 5 and the second flange 61, pull out the cartridge rack 63, and clean the filter screen 64, thereby improving the convenience of cleaning and the accuracy of the pressure difference measurement.

[0034] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A differential pressure flow meter with a protective function, characterized in that: include: A connecting pipe (1), wherein a flow hole (2) is provided at the top of the connecting pipe (1), a drainage pipe (3) for guiding a fluid to flow through a measuring device is connected through the surface of the flow hole (2), and a heating component (4) for heating the fluid to prevent it from freezing is provided on the surface of the connecting pipe (1), a first flange (5) is provided at one end of the connecting pipe (1), and a filter component (6) for filtering impurities inside the fluid is provided on the surface of the first flange (5).

2. A differential pressure flow meter with protection function according to claim 1, characterized in that: The heating assembly (4) comprises a first arc-shaped plate (41) arranged on the surface of the connecting pipe (1), the inner wall of the first arc-shaped plate (41) is provided with a square groove (42), a heating plate (43) for heating is arranged inside the square groove (42), and a connecting plate (44) is fixedly connected to the surface of the first arc-shaped plate (41).

3. A differential pressure flow meter with protection function according to claim 2, characterized in that: One end of the connecting plate (44) is fixedly connected to a second arc-shaped plate (441), a storage battery (442) is arranged on the surface of the second arc-shaped plate (441), and a temperature controller (443) for regulating the heating temperature of the heating plate (43) is arranged on the bottom side of the storage battery (442), and the surface of the temperature controller (443) is electrically connected to the heating plate (43), and one side of the storage battery (442) is electrically connected to the temperature controller (443).

4. A differential pressure flow meter with protection function according to claim 1, characterized in that: The filter assembly (6) comprises a second flange (61) arranged on the surface of the first flange (5); a fluid pipe (62) is connected through one side of the second flange (61); a slide groove is provided on the inner wall of the fluid pipe (62); a cartridge holder (63) is slidably connected inside the slide groove; a filter screen (64) for filtering impurities inside the fluid is provided inside the cartridge holder (63).

5. The differential pressure flow meter with protection function according to claim 1, characterized in that: A pressure differential measuring meter (7) for measuring the pressure differential when fluid flows through and converting it into a corresponding flow signal is arranged on the top of the drainage tube (3), and a protective cover is arranged on the surface of the pressure differential measuring meter (7).

6. A differential pressure flow meter with protection function according to claim 1, characterized in that: The other end of the connecting pipe (1) is provided with a third flange (8) for connecting to a water pipe, and the surface of the third flange (8) is provided with a plurality of through holes for connection in a circular array.

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