CN210664600U - Steam flowmeter - Google Patents
Steam flowmeter Download PDFInfo
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- CN210664600U CN210664600U CN201921602831.0U CN201921602831U CN210664600U CN 210664600 U CN210664600 U CN 210664600U CN 201921602831 U CN201921602831 U CN 201921602831U CN 210664600 U CN210664600 U CN 210664600U
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Abstract
The utility model discloses a steam flowmeter relates to flowmeter technical field, and its technical scheme main points are: the steam circulation pipeline comprises a steam circulation pipeline, connecting flanges arranged at two ends of the steam circulation pipeline and a flow metering body arranged on the steam circulation pipeline, wherein a water collecting tank is arranged at the bottom of an air inlet end of the steam circulation pipeline, one end, far away from the air inlet end of the steam circulation pipeline, of the water collecting tank extends to one side, close to the air inlet end of the steam circulation pipeline, of the flow metering body, a water outlet is formed in the bottom of the water collecting tank, and a steam trap used for discharging condensed water is installed on the water outlet. The steam condensate water in the steam conveying process is collected through the water collecting tank and is discharged through the steam trap, so that the amount of the steam entering the flowmeter body is more accurate, the steam flow value can be conveniently and accurately tested, and the effect of improving the measurement precision is achieved.
Description
Technical Field
The utility model relates to a flowmeter technical field, more specifically say, it relates to a steam flowmeter.
Background
The steam flowmeter is a novel flowmeter developed by utilizing the liquid vibration principle, and is widely applied to the measurement of fluids in the industries of petroleum, chemical engineering, metallurgy, paper making and the like. At present, the steam flow is measured by selecting more differential pressure type instruments, which account for a very high percentage, about 60 percent in the flow measurement technology, because the use is reliable, the quantity conversion part has no movable element, and even if the working condition changes and exceeds the normal working range of the original design, the instruments can still work normally by measures of changing the measuring range of a differential pressure transmitter and the like.
If the granted publication number is CN203274816U, Chinese patent No. 2013.11.06 discloses a precession vortex steam flowmeter, which comprises a shell, a vortex generating body, two flow sensors, a temperature sensor, a pressure sensor and a flow totalizer; the shell is connected with the flow integrating instrument through a heat dissipation support rod; the vortex generating body is arranged in the shell, the two flow sensors are connected into the shell and respectively positioned on two sides of the vortex generating body, and each flow sensor is connected with the flow totalizer through a flow sensor threading pipe; the temperature sensor is connected with the flow totalizer through a temperature sensor threading pipe after being connected into the shell and the vortex generating body; the pressure sensor is connected into the shell through a pressure guiding pipe and is connected with the flow integrating instrument through a pressure sensor threading pipe.
The precession type flow sensor, the temperature sensor, the pressure sensor and the steam flow integrating instrument are integrated, so that the pressure, the temperature, the volume flow, the mass flow, the heat flow, the volume total amount, the mass total amount and the heat total amount of steam can be detected and displayed, and the method is suitable for measuring dry saturated steam or superheated steam. However, part of the steam may be condensed into steam condensate in the process of steam circulation, and if the steam condensate enters the steam flowmeter for measurement, the measurement value of the steam flow is affected, so that the measurement accuracy is poor.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a steam flowmeter has the effect that improves its measurement accuracy.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a steam flowmeter, includes the steam circulation pipeline, sets up in the flange at steam circulation pipeline both ends and sets up the flow measurement body on the steam circulation pipeline, the bottom of steam circulation pipeline inlet end is provided with the catch basin, the one end that the steam circulation pipeline inlet end was kept away from in the catch basin extends to one side that the flow measurement body is close to steam circulation pipeline inlet end, the outlet has been seted up to the bottom in catch basin, install on the outlet and be used for with condensate water exhaust steam trap.
Further setting: one end of the water collecting tank close to the flow metering body is provided with an inclined surface, and the inclined surface is inclined from the bottom of the water collecting tank and extends towards the inside of the steam circulation pipeline.
Further setting: the steam circulation pipeline is characterized in that a heat insulation sleeve is sleeved on the outer side wall of the steam circulation pipeline, a water passing gap is formed between the inner wall of the heat insulation sleeve and the outer side wall of the steam circulation pipeline, the two ends of the water passing gap are respectively connected with a hot water inlet pipe and a hot water outlet pipe, and one end, far away from the water passing gap, of the hot water inlet pipe is connected to the water outlet end of the steam trap.
Further setting: the water heater is characterized in that a water diversion pipe is connected to the hot water inlet pipe, one end, far away from the hot water inlet pipe, of the water diversion pipe is connected with a circulating hot water tank, a water heater is arranged on the circulating hot water tank, and one end, far away from the water passing gap, of the hot water outlet pipe is connected to the circulating hot water tank.
Further setting: and an electric control three-way valve is arranged at the joint of the hot water inlet pipe and the water distribution pipe and is connected with a controller for controlling the opening and closing of the electric control three-way valve.
Further setting: an electric control valve is arranged on the water outlet and connected with a controller.
Further setting: still be equipped with moisturizing pipe and use the water pipe on the circulation hot-water tank, moisturizing pipe connection is in water source department, it uses water piping connection to hot water use usefulness.
Further setting: the water replenishing pipe and the water using pipe are both provided with control valves, and the two control valves are connected with the controller.
By adopting the technical scheme, the utility model discloses relative prior art compares, has following advantage:
1. the steam condensate water in the steam conveying process is collected through the water collecting tank and is discharged through the steam trap, so that the amount of the steam entering the flow meter body is more accurate, the steam flow value is conveniently and accurately tested, and the effect of improving the measurement precision is achieved;
2. through the arranged heat insulation sleeve, the internal temperature is prevented from being dissipated, the external temperature is ensured to be in a normal state, the numerical value of the flow metering body is convenient to read, and the use convenience is improved;
3. through the formed water passing gap, steam condensate water can be introduced, the temperature of the steam flow through pipeline is heated by utilizing the higher temperature of the steam condensate water, and compared with the exchange of the external temperature, the steam flow meter is more favorable for ensuring that the steam cannot be condensed when passing through the flow metering body, is convenient for accurately testing the steam flow value, and has the effect of improving the measurement precision;
4. through the cooperation of circulation hot-water tank and water heater, be convenient for form the transport circulation of steam condensate to guarantee that the steam condensate is in higher temperature, with the temperature of guaranteeing the steam flow and lead to the pipeline outer wall, condensation when avoiding the steam circulation improves measurement accuracy.
Drawings
FIG. 1 is a schematic diagram of a steam flow meter;
fig. 2 is a partial structural view of the steam flow meter taken along its axial direction;
FIG. 3 is a partial schematic view of the steam flow meter taken in a radial direction thereof;
FIG. 4 is a schematic view of the steam flow meter of FIG. 3 in connection with a water knock out pipe and a hot water circulating tank;
fig. 5 is a schematic structural diagram of the electric control valve, the electric control three-way valve and the connection between the control valve and the controller.
In the figure: 1. a steam circulation conduit; 2. a connecting flange; 3. a flow metering body; 4. a water collecting tank; 41. a water outlet; 42. an inclined surface; 43. an electrically controlled valve; 5. a steam trap; 6. a thermal insulation sleeve; 7. a water passing gap; 8. a hot water inlet pipe; 81. a water diversion pipe; 82. an electrically controlled three-way valve; 83. a water pump; 9. a hot water outlet pipe; 10. a circulating hot water tank; 101. a water heater; 102. a water replenishing pipe; 103. a water pipe is used; 104. a control valve; 11. and a controller.
Detailed Description
The steam flow meter is further explained with reference to fig. 1 to 5.
A steam flowmeter is shown in figure 1 and comprises a steam circulation pipeline 1, connecting flanges 2 arranged at two ends of the steam circulation pipeline 1 and a flow metering body 3 arranged on the steam circulation pipeline 1, wherein the steam circulation pipeline 1 is butted on a conveying pipeline of a steam supply system through the connecting flanges 2, one end of the flow metering body 3 is positioned in the steam circulation pipeline 1, and the other end of the flow metering body is connected to the outside of the steam circulation pipeline 1 through a connecting rod, so that the value of the steam flowmeter can be read to obtain a steam flow value.
As shown in fig. 1 and fig. 2, a water collecting tank 4 is arranged at the bottom of the air inlet end of the steam circulation pipeline 1, and one end of the water collecting tank 4, which is far away from the air inlet end of the steam circulation pipeline 1, extends to one side of the flow metering body 3, which is close to the air inlet end of the steam circulation pipeline 1, so that condensed water can be left in the water collecting tank 4, steam is tested through the flow metering body 3, and the testing accuracy is improved. Further, the one end that catch basin 4 is close to flow measurement body 3 sets up to inclined plane 42, and inclined plane 42 extends the setting from the bottom of the pool slope of catch basin 4 towards steam circulation pipeline 1 to in guide steam through inclined plane 42 passes through, avoid steam to receive stopping of 4 inner walls of catch basin and influence the velocity of flow, improve the accuracy nature of steam test.
As shown in fig. 1 and 2, a drain port 41 is formed at the bottom of the sump 4, and a steam trap 5 for discharging condensed water is mounted on the drain port 41, so that the condensed water is automatically discharged when the condensed water is present in the sump 4, and smooth circulation of steam is ensured. The electric control valve 43 is arranged on the water outlet 41 to control whether the steam flows into the steam trap 5 or not by controlling the opening and closing of the electric control valve 43, so that the adjustment can be performed according to the test requirements, if the flow value of the steam with the steam condensate passing through needs to be tested, the electric control valve 43 is closed, and if the flow value of the steam passing through needs to be tested, the electric control valve 43 is opened, so that the steam condensate is discharged by using the steam trap 5.
As shown in fig. 1 and 3, a thermal insulation sleeve 6 is sleeved on the outer side wall of the steam circulation pipe 1 to prevent the temperature of the steam circulation pipe 1 from being dissipated and affecting the external environment temperature. A water passing gap 7 is formed between the heat insulation sleeve 6 and the outer side wall of the steam flow through pipeline 1, so that water with higher temperature can be introduced into the water passing gap 7 to preheat the steam flow through pipeline 1, the phenomenon of steam condensation caused by the influence of the external environment on the temperature inside the steam flow through pipeline 1 is avoided, and the test accuracy is improved.
As shown in fig. 3 and 4, a hot water inlet pipe 8 and a hot water outlet pipe 9 are respectively connected to two ends of the water passing gap 7, and one end of the hot water inlet pipe 8, which is far away from the water passing gap 7, is connected to the water outlet end of the steam trap 5, so as to preheat the steam passing pipe 1 by using steam condensate discharged from the steam trap 5. The temperature of partial steam condensate water generated in the steam conveying process is high and can reach about 80 ℃, the steam circulation pipeline 1 can be effectively preheated, the steam condensate water generated when steam flows through the steam circulation pipeline 1 for testing is avoided, and the measurement precision is improved. One end of the hot water outlet pipe 9, which is far away from the water passing gap 7, is connected with a circulating hot water tank 10 so as to receive the passing steam condensate water.
As shown in fig. 3 and 4, the hot water inlet pipe 8 is connected with a water diversion pipe 81, and one end of the water diversion pipe 81, which is far away from the hot water inlet pipe 8, is connected to the hot water circulating tank 10, so that hot water can be circularly introduced into the hot water inlet pipe 8 from the hot water circulating tank 10, thereby realizing circulating water flow in the water passing gap 7 and ensuring that the temperature is always in a high state. The temperature drops when the water is continuously circulated, so that the water heater 101 is arranged on the circulating hot water tank 10 to ensure that the steam condensate is always in a high-temperature state, and the steam condensate is conveniently circulated for a long time.
As shown in fig. 4 and 5, further, an electrically controlled three-way valve 82 is disposed at the connection between the hot water inlet pipe 8 and the water distribution pipe 81, so as to facilitate the switching of water flow, and when the steam trap 5 drains water, water is supplied through the hot water inlet pipe 8; if the steam trap 5 has no water flow, the water diversion pipe 81 is controlled to be connected with hot water and flow into the water passing gap 7 for preheating, so that the outer side of the steam circulation pipeline 1 is always in a high-temperature state, and the testing precision is improved. The water diversion pipe 81 is provided with a water pump 83 to provide power for water circulation. The electric control three-way valve 82 is connected with a controller 11 for controlling the opening and closing of the electric control three-way valve 82, the electric control valve 43 at the water outlet 41 is connected with the controller 11, the switching between the electric control three-way valve 82 and the electric control valve 43 can be controlled through the controller 11, and the control convenience is improved.
As shown in fig. 4 and 5, the hot water circulation tank 10 has a water supply pipe 102 and a water consumption pipe 103, the water supply pipe 102 is connected to a water source so as to supply water to the hot water circulation tank 10 when the amount of water is insufficient, and the water consumption pipe 103 is connected to a hot water consumption part so as to be led out for use when the water level in the hot water circulation tank 10 is too high. Wherein all be equipped with on moisturizing pipe 102 and the water pipe 103 and be used for controlling moisturizing pipe 102 and the water pipe 103 whether control valve 104 that leads to water, and two control valves 104 all connect in controller 11 to through the unified control of controller 11, improve the convenience of operation.
The working principle is as follows: when steam passes through the steam flow meter and measures, steam condensate water among the steam transport flows into in the catch basin 4 to discharge by steam trap 5, thereby guarantee to enter the steam quality in the flow measurement body 3, improve the measuring accuracy. Wherein, steam trap 5 exhaust steam condensate water has higher temperature, through insert it in water clearance 7 to by water clearance 7 heating steam circulation pipeline 1 outer wall temperature, avoid external environment to influence the inside temperature of steam circulation pipeline 1 and cause the steam condensation phenomenon, guarantee the quality when steam passes through, have the effect that improves measurement accuracy.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a steam flowmeter, includes steam circulation pipeline (1), sets up flange (2) at steam circulation pipeline (1) both ends and sets up flow measurement body (3) on steam circulation pipeline (1), its characterized in that, the bottom of steam circulation pipeline (1) inlet end is provided with catch basin (4), the one end that steam circulation pipeline (1) inlet end was kept away from in catch basin (4) extends to one side that flow measurement body (3) are close to steam circulation pipeline (1) inlet end, outlet (41) have been seted up to the bottom in catch basin (4), install on outlet (41) and be used for drain trap (5) with the comdenstion water drainage.
2. A steam flow meter according to claim 1, characterized in that the end of the collecting basin (4) close to the flow meter body (3) is provided with an inclined surface (42), and the inclined surface (42) is arranged to extend from the bottom of the collecting basin (4) towards the inside of the steam flow pipe (1).
3. The steam flowmeter as claimed in claim 1, wherein a heat insulating sleeve (6) is sleeved on the outer side wall of the steam circulation pipeline (1), a water passing gap (7) is formed between the inner wall of the heat insulating sleeve (6) and the outer side wall of the steam circulation pipeline (1), two ends of the water passing gap (7) are respectively connected with a hot water inlet pipe (8) and a hot water outlet pipe (9), and one end of the hot water inlet pipe (8) far away from the water passing gap (7) is connected to the water outlet end of the steam trap (5).
4. A steam flowmeter according to claim 3, wherein the hot water inlet pipe (8) is connected with a water diversion pipe (81), one end of the water diversion pipe (81) far away from the hot water inlet pipe (8) is connected with a hot water circulation tank (10), the hot water circulation tank (10) is provided with a water heater (101), and one end of the hot water outlet pipe (9) far away from the water passing gap (7) is connected with the hot water circulation tank (10).
5. The steam flowmeter as claimed in claim 4, wherein an electrically controlled three-way valve (82) is arranged at the joint of the water inlet pipe (8) and the water distribution pipe (81), and the electrically controlled three-way valve (82) is connected with a controller (11) for controlling the opening and closing of the electrically controlled three-way valve (82).
6. A steam flow meter according to claim 5, characterised in that an electrically controlled valve (43) is arranged at the outlet (41), said electrically controlled valve (43) being connected to the controller (11).
7. A steam flow meter according to claim 5, characterized in that the circulation hot water tank (10) is further provided with a water replenishing pipe (102) and a water using pipe (103), wherein the water replenishing pipe (102) is connected to a water source, and the water using pipe (103) is connected to a hot water using position.
8. A steam flow meter according to claim 7, wherein the water replenishing pipe (102) and the water using pipe (103) are provided with control valves (104), and the control valves (104) are connected with the controller (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921602831.0U CN210664600U (en) | 2019-09-25 | 2019-09-25 | Steam flowmeter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921602831.0U CN210664600U (en) | 2019-09-25 | 2019-09-25 | Steam flowmeter |
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| CN210664600U true CN210664600U (en) | 2020-06-02 |
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| CN201921602831.0U Active CN210664600U (en) | 2019-09-25 | 2019-09-25 | Steam flowmeter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097844A (en) * | 2020-09-12 | 2020-12-18 | 江苏万宝电子有限公司 | High-precision measurement steam flowmeter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097844A (en) * | 2020-09-12 | 2020-12-18 | 江苏万宝电子有限公司 | High-precision measurement steam flowmeter |
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Address after: 361000 unit 1202, No. 39, xishanwei Road, phase III, software park, Xiamen, Fujian Patentee after: Xiamen Kunling System Engineering Co.,Ltd. Address before: 361000 zone B, axis 1-3, west second floor, No. 7-11, Torch Road, torch Park, torch hi tech Zone, Xiamen, Fujian Patentee before: Xiamen Kunling System Engineering Co.,Ltd. |