An inductive orifice plate flowmeter throttling device

Abstract

The present invention discloses an inductive orifice plate flowmeter throttling device, which includes a flowmeter body. A first pressure guiding pipe is fixedly connected to the left side of the top of the flowmeter body, and a first high-temperature and high-pressure stop valve is arranged on the first pressure guiding pipe. A second pressure guiding pipe is fixedly connected to the right side of the top of the flowmeter body, and a second high-temperature and high-pressure stop valve is arranged on the second pressure guiding pipe. A first connecting seat is fixedly connected to the middle position of the top of the flowmeter body, and a temperature detection hole is formed inside the first connecting seat, and a temperature sensor is installed inside the temperature detection hole. The present invention is provided with a heat dissipation device, which can increase the heat dissipation area through the heat dissipation device, quickly dissipate the heat of the equipment, avoid damage to the differential pressure transmitter due to high temperature, and also avoid burning the operator by high temperature. By setting a circuit control module to set a threshold value to control the heat dissipation device to start at high temperature, the automatic induction heat dissipation function is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of flow meters, and specifically to an orifice plate flow meter throttling device for an inductive type. Background Art

[0002] An orifice plate flow meter is a high-range ratio differential pressure flow device composed of a standard orifice plate and a multi-parameter differential pressure transmitter, which can measure the flow of gases, steam, liquids, etc. The application of orifice plate flow meters is relatively wide and can be used in fields such as petroleum, chemical industry, and metallurgy.

[0003] For the existing orifice plate flow meters used to measure steam flow, the differential pressure transmitter is usually fixed on the meter body. Since steam is conveyed inside the meter body, the temperature on the surface of the meter body will be very high. Under the action of heat conduction, the differential pressure transmitter will also be affected by high temperature. The differential pressure transmitter is prone to damage when operating at high temperature for a long time, and may burn the users of the equipment. Therefore, there is an urgent need for an orifice plate flow meter throttling device for an inductive type to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an orifice plate flow meter throttling device for an inductive type to solve the problems that the high temperature generated on the surface of the orifice plate flow meter used to measure steam flow is prone to damage the differential pressure transmitter and burn the users as mentioned in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An orifice plate flow meter throttling device for an inductive type, including a flow meter body. A first pressure guiding pipe is fixedly connected to the left side of the top end of the flow meter body, and a first high-temperature and high-pressure stop valve is arranged on the first pressure guiding pipe. A second pressure guiding pipe is fixedly connected to the right side of the top end of the flow meter body, and a second high-temperature and high-pressure stop valve is arranged on the second pressure guiding pipe. A first connecting seat is fixedly connected to the middle position of the top end of the flow meter body, and a temperature detection hole is opened inside the first connecting seat. A temperature sensor is installed inside the temperature detection hole. A second connecting seat is fixedly connected to the top end of the first connecting seat, and a through installation groove is opened inside the second connecting seat. A heat dissipation device is fixedly connected to the surface of the second connecting seat. A third connecting seat is fixedly connected to the top end of the second connecting seat, and an installation inner cavity is opened inside the third connecting seat. A circuit control module is installed inside the installation inner cavity. An installation bracket is fixedly connected to the top end of the third connecting seat, and a differential pressure transmitter is fixed to the top end of the installation bracket. An antifreeze isolator is fixed to the top end of the differential pressure transmitter. Both the first pressure guiding pipe and the second pressure guiding pipe are connected to the antifreeze isolator.

[0006] Preferably, a first connecting flange is fixedly connected to the left side of the flowmeter body, a second connecting flange is fixedly connected to the right side of the flowmeter body, a throttling orifice plate is fixed at the middle position inside the flowmeter body, a first pressure guiding hole is formed in the surface of the flowmeter body at the left side of the throttling orifice plate, a second pressure guiding hole is formed in the surface of the flowmeter body at the right side of the throttling orifice plate, the first pressure guiding hole is fixedly connected to a first pressure guiding pipe, and the second pressure guiding hole is fixedly connected to a second pressure guiding pipe.

[0007] Preferably, the heat dissipation device includes a first fixing clamp, a second fixing clamp, a heat dissipation pressing plate, a heat conducting copper pipe, a hollowed-out heat dissipation module, a first heat dissipation fan and a second heat dissipation fan. The front surface of the first fixing clamp is fixedly connected to the second fixing clamp, and the back surface of the second fixing clamp is fixedly connected to the heat dissipation pressing plate. The front surface of the heat dissipation pressing plate is fixedly connected to the heat conducting copper pipe, and the hollowed-out heat dissipation module is fixed on the heat conducting copper pipe. The first heat dissipation fan is fixed to the left side of the hollowed-out heat dissipation module, and the second heat dissipation fan is fixed to the right side of the hollowed-out heat dissipation module.

[0008] Preferably, a first fixing hole is formed in the first fixing clamp, a second fixing hole is formed in the second fixing clamp, the second fixing hole and the first fixing hole are in corresponding positions, and a fixing bolt is inserted into the second fixing hole and the first fixing hole.

[0009] Preferably, a clamping groove is formed in the front surface of the heat dissipation pressing plate, and the heat conducting copper pipe is embedded in the interior of the clamping groove.

[0010] Preferably, the heat conducting copper pipe is of a U-shaped structure, a through hole is formed in the surface of the second fixing clamp, and both ends of the heat conducting copper pipe are arranged on the back surface of the second fixing clamp through the through hole.

[0011] Preferably, the hollowed-out heat dissipation module is composed of several groups of heat dissipation aluminum sheets arranged, the several groups of heat dissipation aluminum sheets are fixed by connecting pieces, and an equal distance is maintained between the several groups of heat dissipation aluminum sheets.

[0012] Preferably, the second heat dissipation fan and the first heat dissipation fan have the same specifications, and the wind directions of the second heat dissipation fan and the first heat dissipation fan are the same.

[0013] Preferably, the circuit control module is electrically connected to the temperature sensor, and the circuit control module is electrically connected to the heat dissipation device.

[0014] Preferably, two sets of heat dissipation devices are provided, and the two sets of heat dissipation devices are fixed at symmetrical positions on the second connecting seat.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The throttling device of the inductive orifice plate flowmeter is provided with a heat dissipation device. By means of the heat dissipation device, the heat dissipation area is increased, so that the equipment can be quickly cooled, preventing the differential pressure transmitter from being damaged due to high temperature and avoiding burns to the operating personnel caused by high temperature. By setting a circuit control module to set a threshold value to control the heat dissipation device to start at high temperature, the automatic induction heat dissipation function is realized.

[0016] (1) The device guides the pressures on both sides inside the flowmeter body to the differential pressure transmitter through the first pressure guiding pipe and the second pressure guiding pipe. The differential pressure transmitter measures the pressure value and calculates the flow rate.

[0017] (2) The device is provided with a heat dissipation device. The fan provided on the heat dissipation device can dissipate heat from the equipment, preventing a large amount of heat generated on the surface of the flowmeter body from being transferred to the differential pressure transmitter, resulting in damage to the differential pressure transmitter, and also avoiding burns to the equipment operating personnel caused by high temperature.

[0018] (3) The device conducts the heat on the surface of the second connection seat to the hollow-out heat dissipation module through a heat-conducting copper pipe. The hollow-out heat dissipation module greatly increases the heat dissipation area, and then the fan drives the air flow to dissipate heat from the hollow-out heat dissipation module, enabling rapid heat dissipation of the equipment.

[0019] (4) The device measures the temperature through a temperature sensor and transmits the temperature data to the circuit control module. By setting a threshold value in the circuit control module, the heat dissipation device can be controlled to start automatically in high-temperature situations, realizing the automatic induction heat dissipation function. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a front view schematic diagram of the structure of the present invention;

[0021] Figure 2 is a sectional view of the structure of the flowmeter body in the present invention;

[0022] Figure 3 is a top view schematic diagram of the structure of the second connection seat and the heat dissipation device in the present invention;

[0023] Figure 4 is a left view schematic diagram of the structure of the second connection seat and the heat dissipation device in the present invention;

[0024] Figure 5 is the present invention Figure 3 a partial enlarged view of part A in;

[0025] Figure 6 is a front view schematic diagram of the structure of the heat dissipation device in the present invention;

[0026] Figure 7 is a front view schematic diagram of the structure of the first fixing clamp in the present invention;

[0027] Figure 8 This is a rear view schematic diagram of the structures of the second fixing fixture and the heat dissipation pressing plate in the present invention;

[0028] Figure 9 This is a left view schematic diagram of the structure of the heat dissipation pressing plate in the present invention;

[0029] Figure 10 This is a left view schematic diagram of the structure of the second connecting seat in the present invention.

[0030] In the figure: 1. Flowmeter body; 2. First connecting flange; 3. Second connecting flange; 4. Throttling orifice plate; 5. First pressure guiding hole; 6. Second pressure guiding hole; 7. First pressure guiding pipe; 8. First high-temperature and high-pressure stop valve; 9. Second pressure guiding pipe; 10. Second high-temperature and high-pressure stop valve; 11. First connecting seat; 12. Temperature detection hole; 13. Temperature sensor; 14. Second connecting seat; 15. Penetrating installation groove; 16. Heat dissipation device; 17. Third connecting seat; 18. Installation inner cavity; 19. Circuit control module; 20. Installation bracket; 21. Differential pressure transmitter; 22. Anti-freezing isolator; 23. First fixing fixture; 24. Second fixing fixture; 25. First fixing hole; 26. Second fixing hole; 27. Fixing bolt; 28. Heat dissipation pressing plate; 29. Card slot; 30. Heat conducting copper pipe; 31. Hollow heat dissipation module; 32. Through hole; 33. First heat dissipation fan; 34. Second heat dissipation fan; 35. Heat dissipation aluminum sheet. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1-10, an embodiment provided by the present invention: an inductive orifice plate flowmeter throttling device, including a flowmeter body 1. On the left side of the top of the flowmeter body 1, a first pressure guiding pipe 7 is fixedly connected, and a first high-temperature and high-pressure stop valve 8 is arranged on the first pressure guiding pipe 7. On the right side of the top of the flowmeter body 1, a second pressure guiding pipe 9 is fixedly connected, and a second high-temperature and high-pressure stop valve 10 is arranged on the second pressure guiding pipe 9. At the middle position of the top of the flowmeter body 1, a first connecting seat 11 is fixedly connected, and a temperature detection hole 12 is opened inside the first connecting seat 11. A temperature sensor 13 is installed inside the temperature detection hole 12. The temperature sensor 13 can measure the temperature of the first connecting seat 11. On the top of the first connecting seat 11, a second connecting seat 14 is fixedly connected, and a through installation groove 15 is opened inside the second connecting seat 14. On the surface of the second connecting seat 14, a heat dissipation device 16 is fixedly connected. The heat dissipation device 16 is used to dissipate heat from the second connecting seat 14. On the top of the second connecting seat 14, a third connecting seat 17 is fixedly connected, and an installation cavity 18 is opened inside the third connecting seat 17. A circuit control module 19 is installed inside the installation cavity 18. On the top of the third connecting seat 17, an installation bracket 20 is fixedly connected, and a differential pressure transmitter 21 is fixed on the top of the installation bracket 20. An antifreeze isolator 22 is fixed on the top of the differential pressure transmitter 21. Both the first pressure guiding pipe 7 and the second pressure guiding pipe 9 are connected to the antifreeze isolator 22.

[0033] On the left side of the flowmeter body 1, a first connecting flange 2 is fixedly connected. On the right side of the flowmeter body 1, a second connecting flange 3 is fixedly connected. At the middle position inside the flowmeter body 1, an orifice plate 4 is fixed. On the surface of the flowmeter body 1 at the left side of the orifice plate 4, a first pressure guiding hole 5 is opened. On the surface of the flowmeter body 1 at the right side of the orifice plate 4, a second pressure guiding hole 6 is opened. The first pressure guiding hole 5 is fixedly connected to the first pressure guiding pipe 7, and the second pressure guiding hole 6 is fixedly connected to the second pressure guiding pipe 9. The first pressure guiding hole 5 and the second pressure guiding hole 6 can conduct the pressures on both sides of the orifice plate 4 away for measurement, and then calculate the flow rate according to the pressure difference.

[0034] The heat dissipation device 16 includes a first fixing clamp 23, a second fixing clamp 24, a heat dissipation pressing plate 28, a heat-conducting copper tube 30, a hollowed-out heat dissipation module 31, a first heat dissipation fan 33 and a second heat dissipation fan 34. The front of the first fixing clamp 23 is fixedly connected to the second fixing clamp 24, and the back of the second fixing clamp 24 is fixedly connected to the heat dissipation pressing plate 28. The front of the heat dissipation pressing plate 28 is fixedly connected to the heat-conducting copper tube 30, and the hollowed-out heat dissipation module 31 is fixed on the heat-conducting copper tube 30. The first heat dissipation fan 33 is fixed on the left side of the hollowed-out heat dissipation module 31, and the second heat dissipation fan 34 is fixed on the right side of the hollowed-out heat dissipation module 31. The combined use of the first fixing clamp 23 and the second fixing clamp 24 plays a fixing role. The heat-conducting copper tube 30 and the hollowed-out heat dissipation module 31 are used for heat conduction. The operation of the first heat dissipation fan 33 and the second heat dissipation fan 34 can dissipate heat away.

[0035] A first fixing hole 25 is provided on the first fixing clamp 23, a second fixing hole 26 is provided on the second fixing clamp 24. The second fixing hole 26 and the first fixing hole 25 are in corresponding positions, and a fixing bolt 27 is inserted into the interiors of the second fixing hole 26 and the first fixing hole 25. The first fixing clamp 23 and the second fixing clamp 24 are fixed together by the fixing bolt 27, so that the heat-conducting copper tube 30 abuts against the surface of the second connecting seat 14, thereby fixing the heat dissipation device 16 on the second connecting seat 14.

[0036] A clamping groove 29 is provided on the front of the heat dissipation pressing plate 28, and the heat-conducting copper tube 30 is embedded in the interior of the clamping groove 29, so that the heat-conducting copper tube 30 is flush with the surface of the heat dissipation pressing plate 28, which is beneficial to increasing the contact area between the heat-conducting copper tube 30 and the second connecting seat 14 and facilitating heat dissipation of the heat-conducting copper tube 30.

[0037] The heat-conducting copper tube 30 is of a U-shaped structure. A through hole 32 is provided on the surface of the second fixing clamp 24. Both ends of the heat-conducting copper tube 30 are arranged on the back of the second fixing clamp 24 through the through hole 32, so that the structure is more reasonable and stable.

[0038] The hollowed-out heat dissipation module 31 is composed of several groups of heat dissipation aluminum sheets 35 arranged. The several groups of heat dissipation aluminum sheets 35 are fixed by connecting pieces, and equal intervals are maintained between the several groups of heat dissipation aluminum sheets 35. This structure of the hollowed-out heat dissipation module 31 greatly increases the heat dissipation area and is beneficial to rapid heat dissipation.

[0039] The second heat dissipation fan 34 and the first heat dissipation fan 33 have the same specifications, and the wind directions of the second heat dissipation fan 34 and the first heat dissipation fan 33 are the same. Keeping the wind directions of the two fans the same is beneficial to rapid heat dissipation.

[0040] The circuit control module 19 is electrically connected to the temperature sensor 13 and the heat dissipation device 16. The circuit control module 19 receives temperature data through the temperature sensor 13 and determines whether to start the heat dissipation device 16 to dissipate heat from the device according to the temperature.

[0041] The heat dissipation devices 16 are set in two groups, and the two groups of heat dissipation devices 16 are fixed at symmetrical positions on the second connection seat 14. The two groups of heat dissipation devices 16 dissipate heat together, and the heat dissipation effect is better.

[0042] Working principle: When this device is in use, steam is input from the first connection flange 2, then passes through the orifice plate 4, and is output from the second connection flange 3. The steam pressures on both sides of the orifice plate 4 are different. The functions of the first pressure guiding hole 5 and the second pressure guiding hole 6 are to introduce the steam pressures on both sides of the orifice plate 4 into the differential pressure transmitter 21 for measurement, and then calculate the flow rate according to the pressure difference.

[0043] Since this device measures the flow rate of steam and steam has the characteristic of high temperature, the temperature inside the flowmeter body 1 will be very high. The differential pressure transmitter 21 is a measuring device. If the differential pressure transmitter 21 is directly set on the surface of the flowmeter body 1, it will be affected by high temperature and is easily damaged. Therefore, three layers of brackets, namely the first connection seat 11, the second connection seat 14, and the third connection seat 17, are added between the flowmeter body 1 and the differential pressure transmitter 21. A temperature sensor 13 is set on the first connection seat 11 of the bracket, a heat dissipation device 16 is set on the second connection seat 14 of the bracket, and a circuit control module 19 is set on the third connection seat 17 of the bracket. The temperature sensor 13 is used to measure the temperature and then transmit the temperature data to the circuit control module 19. The circuit control module 19 automatically controls the operation of the heat dissipation device 16 according to the temperature data. The temperature threshold can be set through the circuit control module 19. When the temperature measured by the temperature sensor 13 is greater than this threshold, the circuit control module 19 controls the heat dissipation device 16 to start, thus realizing the automatic control of the heat dissipation function of this device.

[0044] The heat dissipation device 16 is in contact with the surface of the second connection seat 14 through the heat conducting copper tube 30, so that the heat conducting copper tube 30 conducts away the heat on the second connection seat 14. And a hollow-out heat dissipation module 31 is set on the heat conducting copper tube 30. Since the hollow-out heat dissipation module 31 is composed of several layers of heat dissipation aluminum sheets 35, the heat conducting copper tube 30 conducts the heat to the heat dissipation aluminum sheets 35. Since the heat dissipation aluminum sheets 35 greatly increase the contact area with the air, the heat dissipation will be very fast. Then, the first heat dissipation fan 33 and the second heat dissipation fan 34 are started to form an air flow to dissipate heat from the heat dissipation aluminum sheets 35, and the heat can be dissipated quickly.

[0045] In this way, when the heat reaches the differential pressure transmitter 21 from the flowmeter body 1 through the first connecting seat 11, the second connecting seat 14, and the third connecting seat 17, most of the heat has been dissipated. The remaining heat hardly affects the normal use of the differential pressure transmitter 21, and the temperature is reduced, so people will not be scalded by high temperature when checking the measurement data through the differential pressure transmitter 21.

[0046] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An orifice plate flowmeter throttling device of induction type, comprising a flowmeter body (1), characterized in that: On the left side of the top end of the flowmeter body (1), a first pressure guiding pipe (7) is fixedly connected, and a first high-temperature and high-pressure stop valve (8) is arranged on the first pressure guiding pipe (7). On the right side of the top end of the flowmeter body (1), a second pressure guiding pipe (9) is fixedly connected, and a second high-temperature and high-pressure stop valve (10) is arranged on the second pressure guiding pipe (9). At the middle position of the top end of the flowmeter body (1), a first connection seat (11) is fixedly connected, and a temperature detection hole (12) is formed inside the first connection seat (11). A temperature sensor (13) is installed inside the temperature detection hole (12). On the top end of the first connection seat (11), a second connection seat (14) is fixedly connected, and a through installation groove (15) is formed inside the second connection seat (14). A heat dissipation device (16) is fixedly connected to the surface of the second connection seat (14). On the top end of the second connection seat (14), a third connection seat (17) is fixedly connected, and an installation inner cavity (18) is formed inside the third connection seat (17). A circuit control module (19) is installed inside the installation inner cavity (18). On the top end of the third connection seat (17), an installation bracket (20) is fixedly connected, and a differential pressure transmitter (21) is fixed on the top end of the installation bracket (20). An anti-freezing isolator (22) is fixed on the top end of the differential pressure transmitter (21). The first pressure guiding pipe (7) and the second pressure guiding pipe (9) are both connected to the anti-freezing isolator (22); On the left side of the flowmeter body (1), a first connection flange (2) is fixedly connected. On the right side of the flowmeter body (1), a second connection flange (3) is fixedly connected. At the middle position inside the flowmeter body (1), a throttle orifice plate (4) is fixed. On the surface of the flowmeter body (1) at the position to the left of the throttle orifice plate (4), a first pressure guiding hole (5) is formed. On the surface of the flowmeter body (1) at the position to the right of the throttle orifice plate (4), a second pressure guiding hole (6) is formed. The first pressure guiding hole (5) is fixedly connected to the first pressure guiding pipe (7). The second pressure guiding hole (6) is fixedly connected to the second pressure guiding pipe (9); The heat dissipation device (16) includes a first fixing clamp (23), a second fixing clamp (24), a heat dissipation pressing plate (28), a heat conducting copper pipe (30), a hollowed-out heat dissipation module (31), a first heat dissipation fan (33) and a second heat dissipation fan (34). On the front surface of the first fixing clamp (23), the second fixing clamp (24) is fixedly connected. On the back surface of the second fixing clamp (24), the heat dissipation pressing plate (28) is fixedly connected. On the front surface of the heat dissipation pressing plate (28), the heat conducting copper pipe (30) is fixedly connected. The hollowed-out heat dissipation module (31) is fixed on the heat conducting copper pipe (30). The first heat dissipation fan (33) is fixed on the left side of the hollowed-out heat dissipation module (31). The second heat dissipation fan (34) is fixed on the right side of the hollowed-out heat dissipation module (31).

2. The orifice plate flowmeter throttling device of induction type according to claim 1, characterized in that: A first fixing hole (25) is formed in the first fixing fixture (23), a second fixing hole (26) is formed in the second fixing fixture (24), the second fixing hole (26) and the first fixing hole (25) are in corresponding positions, and a fixing bolt (27) is inserted into the second fixing hole (26) and the first fixing hole (25).

3. The orifice plate flowmeter throttling device of induction type according to claim 2, characterized in that: A clamping groove (29) is formed in the front surface of the heat dissipation pressing plate (28), and the heat conduction copper tube (30) is embedded in the clamping groove (29).

4. The orifice plate flowmeter throttling device of induction type according to claim 3, characterized in that: The heat conduction copper tube (30) is of a U-shaped structure, a through hole (32) is formed in the surface of the second fixing fixture (24), and both ends of the heat conduction copper tube (30) are arranged on the back surface of the second fixing fixture (24) through the through hole (32).

5. The orifice plate flowmeter throttling device of induction type according to claim 4, characterized in that: The hollow-out heat dissipation module (31) is composed of several groups of heat dissipation aluminum sheets (35) arranged, and the several groups of heat dissipation aluminum sheets (35) are fixed by connecting pieces, and equal intervals are maintained between the several groups of heat dissipation aluminum sheets (35).

6. The orifice plate flowmeter throttling device of induction type according to claim 5, characterized in that: The second heat dissipation fan (34) and the first heat dissipation fan (33) have the same specifications, and the directions of the second heat dissipation fan (34) and the first heat dissipation fan (33) are the same.

7. The orifice plate flowmeter throttling device of induction type according to claim 6, characterized in that: The circuit control module (19) is electrically connected to the temperature sensor (13), and the circuit control module (19) is electrically connected to the heat dissipation device (16).

8. The orifice plate flowmeter throttling device of induction type according to claim 7, characterized in that: Two sets of the heat dissipation devices (16) are provided, and the two sets of heat dissipation devices (16) are fixed at symmetric positions on the second connecting seat (14).

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