WO2018120747A1 - Electrical connector, fluid state test device, and fluid heat exchange system - Google Patents
Electrical connector, fluid state test device, and fluid heat exchange system Download PDFInfo
- Publication number
- WO2018120747A1 WO2018120747A1 PCT/CN2017/092162 CN2017092162W WO2018120747A1 WO 2018120747 A1 WO2018120747 A1 WO 2018120747A1 CN 2017092162 W CN2017092162 W CN 2017092162W WO 2018120747 A1 WO2018120747 A1 WO 2018120747A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fluid
- electrical connector
- pressure
- body portion
- temperature sensing
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/02—Arrangements for preventing, or for compensating for, effects of inclination or acceleration of the measuring device; Zero-setting means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
- G01L19/0038—Fluidic connecting means being part of the housing
Definitions
- the present invention relates to the field of electrical engineering technology, and in particular, to an electrical connector, a fluid state testing device, and a fluid heat exchange system.
- the electric heating tube (or metal tubular electric heating element) is a charging element for converting electrical energy into thermal energy, which has no pollution compared with the conventional heating, is convenient to install, convenient to use, and low in price, and belongs to environmentally-friendly green production, so it is widely used. It can be applied to a variety of equipments that require heat treatment. For example, multiple electric heating tubes can be combined into a heat exchange system, installed in a saltpet tank, a water tank, an oil tank, an acid-base tank, a fusible metal melting furnace, an air heating furnace, and drying. In the fluid passage of equipment such as furnaces, drying ovens, and hot stamping dies.
- the plurality of electric heating tubes are respectively fixed to the fixed end of the electric heating tube in the fluid passage.
- the electrodes of the plurality of electric heating tubes need to be connected in series or in parallel to each other to form a multi-phase load heat generating heat source, and the electric heating tube is supplied with power through the alternating current. Therefore, the electrodes of the electric heating tube need to be connected, connected in series, and connected in parallel by means of electrical connectors, and then the connection with the external power supply is realized.
- the electrical connector itself exists in the fluid flow channel, which becomes an obstacle to the flow of the fluid hot air, which may cause forced vibration of the electrical connector, and even A coupling vibration (ie, a resonance phenomenon) occurs between the electrical connection member and the fluid, so that the electrical connection between the electrical connector and the electrode of the electric heating tube is likely to fall off and cause a short circuit failure.
- a coupling vibration ie, a resonance phenomenon
- the electrical connecting member for example, a wire
- the electrical connecting member for example, a wire
- the lead electrode of the plurality of branch electric heating tubes is directly along the radial direction of the fluid passage.
- the electrical connector when the fluid in the fluid passage is a liquid, the electrical connector is not allowed to be drawn out to the outside, in which case a plurality of electrical connectors must be connected in series or in parallel within the fluid passage.
- the insulated flexible wire is used as the electrical connection member to connect the electrodes of the electric heating tube, in order to avoid the resonance phenomenon of the wire in the fluid by the fluid pressure, the insulated wire needs to be fixed on the inner wall of the fluid passage, and when the wire is insulated When the insulation between the layer and the inner wall of the metal of the fluid passage fails, the electrical connector is discharged, causing a short circuit failure in the entire heat exchange system.
- Another object of the present invention is to provide an electrical connector, a fluid state testing device, and a fluid heat exchange system that are capable of measuring and monitoring fluid pressure without affecting the fluid flow field in which it is located.
- Another object of the present invention is to provide an electrical connector, a fluid state testing device, and a fluid heat exchange system that are capable of measuring and monitoring fluid resistance without affecting the fluid flow field in which it is located.
- Another object of the present invention is to provide an electrical connector, a fluid state testing device, and a fluid heat exchange system that are capable of measuring and monitoring the lateral vibration frequency of the electrical connector without affecting the fluid flow field in which it is located.
- Another object of the present invention is to provide an electrical connector, a fluid state testing device, and a flow
- the body heat exchange system is capable of suppressing longitudinal vibration and/or lateral vibration of the electrical connector itself without affecting the fluid flow field in which it is located.
- One aspect of the present invention provides an electrical connector capable of measuring a fluid state in a flow path, the electrical connector including a body portion, a connecting portion, a total pressure collecting portion, and a static pressure collecting portion, the connecting portion causing the body portion to be disposed in the flow
- the charging element in the track is electrically connected;
- the total pressure collecting portion includes a total pressure pressing hole disposed at a first portion of the body portion facing the flow direction of the fluid;
- the static pressure collecting portion includes a fluid parallel to the body portion A static pressure tapping hole on the second portion of the flow direction.
- a fluid state testing device including an electrical connector and a first pressure measuring portion, the electrical connector including a body portion, a connecting portion, a total pressure collecting portion, and a static pressure collecting portion.
- the connecting portion electrically connects the main body portion with the charging member disposed in the flow passage;
- the total pressure collecting portion includes a total pressing pressing hole disposed at the first portion of the main body portion facing the flow direction of the fluid;
- the static pressure collecting portion includes the a static pressure tapping hole on the second portion of the main body portion parallel to the flow direction of the fluid;
- the first pressure measuring portion is connected to the total pressure pressing hole and the static pressure tapping hole, respectively, to measure the fluid pressure state.
- Another aspect of the present invention provides a fluid heat exchange system including a flow passage through which a fluid flows; a charging member fixed in the flow passage, the charging member being an electric heating member, the electric heating member including the heat generating body and the end portion of the heat generating body An electrode; and a fluid state testing device as described above, the electrical connector being connected to the electrode of the electric heating element.
- the invention develops and expands the structure of the electrical connection parts of the electric heat source electrode by phase-separating, series-connecting and parallel-coupling, and breaks through the traditional function of the conductor to carry only the power transmission task, so that the electrical connector also has Sensing, detection and other functions make a major breakthrough in the existing technology.
- the invention does not change the flow field in the original fluid system of the electrical connection of the electrothermal source electrode; the sensor and its test system are not introduced around the electrical connection of the electrothermal source electrode, and the flow field around the electrical connection of the electrothermal source electrode is avoided.
- Destruction, and at least one of the following information can be obtained: (1) information on the forced vibration of the electrical connection of the electrothermal source electrode; (2) information on the velocity of the fluid in the flow field of the electrical connection of the electrothermal source electrode; 3) Information on the convective heat transfer between the electrical connection of the electrothermal source electrode and the fluid.
- FIG. 1 is a front elevational view showing a state in which an electrical connector of the present invention is mounted in a flow path.
- FIG. 2 is a partial schematic view of an electrical connector of one embodiment of the present invention.
- FIG. 3 is a partial schematic view of an electrical connector of another embodiment of the present invention.
- Fig. 4 is a view showing the relationship between the aspect ratio and the drag coefficient of the electrical connector of the present invention.
- Figure 5 is a top plan view of an electrical connector of one embodiment of the present invention.
- Figure 6 is a top plan view of an electrical connector of another embodiment of the present invention.
- Figure 7 is a partial schematic view of an electrical connector of another embodiment of the present invention.
- Figure 8 is a schematic cross-sectional view of an electrical connector of another embodiment of the present invention.
- Figure 9 is a partial schematic view of the electrical connector of the present invention wound with a spiral.
- Figure 10 is a front elevational view showing a state in which an electrical connector of another embodiment of the present invention is installed in a flow path.
- Figure 11 is a schematic illustration of a fluid state testing device in accordance with one embodiment of the present invention.
- Figure 12 is a schematic illustration of a fluid state testing device in accordance with another embodiment of the present invention.
- Figure 13 is a schematic illustration of a fluid state testing device in accordance with another embodiment of the present invention.
- Fig. 14 is a circuit diagram showing a frequency calculation unit in the fluid state test device shown in Fig. 13.
- Figure 15 is a schematic cross-sectional view of a fluid heat exchange system incorporating the electrical connector of the present invention.
- Figure 16 is a schematic view showing the structure of an electric heating pipe installed in the fluid heat exchange system shown in Figure 15.
- Figure 17 is a plan development view showing the arrangement relationship between the electric heating pipe and the electrical connector of the fluid heat exchange system of the present invention.
- Fig. 18 is a plan development view showing another arrangement relationship between the electric heating pipe and the electric connecting member of the fluid heat exchanging system of the present invention.
- 140-total pressure collection section 141-total pressure extraction orifice; 142-total pressure transmission passage;
- 170-torsion portion 180-first pressure measuring portion; 181-first temperature sensing element;
- the electrical connector 100 is used to connect a live component disposed in the flow channel to electrically connect the live component to or between the power source.
- the charging element may be an electric heating element capable of generating heat, or may be another type of charging element capable of performing a conductive function.
- the fluid flows inwardly in a direction perpendicular to the plane of the paper, the direction of which is indicated by a circle with an arrow tail inside. Fluid below The structure of the electrical connector 100 will be described with reference to the flow direction as a reference.
- Fig. 1 is a front view showing a state in which the electrical connector 100 is mounted in a flow path.
- the electrical connector 100 includes a main body portion 110 and first and second connecting portions 120 and 130 located at both ends in the longitudinal direction of the main body portion 110.
- the body portion 110 includes an upstream surface 111, a first side 112, a second side 113, and a backflow surface 116 (see FIG. 2).
- the flow-facing surface 111 is a surface of the body portion 110 facing the direction of fluid flow, which is directly impacted by the fluid in the flow channel and creates a resistance to the flow of the fluid.
- the backflow surface 116 is the surface of the body portion 110 facing away from the direction of fluid flow that opposes the flow-facing surface 110 and is not impacted by fluid within the flow channel.
- the first side 112 and the second side 113 are generally parallel to the direction of fluid flow.
- the first connecting portion 120 and the second connecting portion 130 are respectively located at both ends of the main body portion 110.
- the first connecting portion 120 has a connecting hole 121 and connecting faces 122 and 123 opposed to each other.
- the second connecting portion 130 has a connecting hole 131 and connecting faces 132 and 133 opposed to each other.
- the connecting holes 121, 131 may respectively pass through the electrodes of the two charging elements (see FIG.
- the connecting portion 120 and the second connecting portion 130 are connected to each other to electrically connect the two charging members respectively connected to the two ends of the electrical connector 100.
- the connecting faces 122, 123 and/or the connecting faces 132, 133 are planar, which facilitates the pressing and fixing of the electrodes of the charging element through the connecting holes.
- the first side 112 and the second side 113 in order to cause the flow state of the fluid flowing through the first side 112 and the second side 113 to be substantially the same condition, preferably, the first side 112 is parallel to the second side 113. .
- the main body portion 110 is curved, that is, the first side surface 112 and the second side surface 113 are curved surfaces. In other embodiments, as shown in Figures 2 and 3, the first side 112 and the second side 113 are both planar.
- the flow surface 111 in order to accurately collect and measure the fluid pressure acting on the flow surface 111, in the embodiment shown in Fig. 2, the flow surface 111 is a flat surface.
- the upstream surface 111 is a plane that is perpendicular to the direction of fluid flow.
- the flow surface 111 is a curved surface to reduce resistance to fluid.
- the area on the upstream surface 111 where the total pressure pressing hole 141 is provided is a flat surface.
- the direction of the flow surface 111 perpendicular to the fluid flow direction should be minimized.
- the size on the top In the embodiment shown in Fig. 1, the dimension of the flow-facing surface 111 in the thickness direction is smaller than the direction in which the main body portion 110 is parallel to the fluid flow direction, that is, the width direction. That is, the dimension of the upstream surface 111 in the thickness direction is smaller than the dimension of the side faces of the main body portion 110 (ie, the first side 112 and the second side 113) in the width direction.
- the windward surface of the windward surface 111 is small, the resistance is small, and it is not easily bent, and the corresponding longitudinal direction (along the fluid flow direction) is also small.
- the resistance of the electrical connector 100 to the fluid in the flow passage can be weakened, thereby attenuating the longitudinal vibration of the electrical connector 100 itself.
- the width D of the electrical connector 100 is the dimension of the electrical connector 100 in a direction parallel to the flow direction of the fluid
- the thickness B is the dimension of the electrical connector 100 in a direction perpendicular to the direction of fluid flow. Therefore, the aspect ratio of the electrical connector 100 is defined as D/B.
- the pressure of the upstream surface 111 of the electrical connector 100 is p w
- the pressure of the backflow surface 116 of the electrical connector 100 is p l
- the resistance of the upstream surface 111 of the electrical connector 100 to the fluid is:
- A is the projected area of the upstream surface 111 of the electrical connector 100, that is, the area facing the fluid flow direction.
- ⁇ a is the fluid density in the flow channel
- U is the fluid velocity in the flow channel
- C p,w is the pressure coefficient of the flow surface 111
- C p,l is the pressure coefficient of the back flow surface 116
- C d is the electrical connection The pressure coefficient produced by the piece 100 on the fluid, ie the drag coefficient.
- the aspect ratio D/B is about 0.5, that is, the width D is approximately half of the thickness B
- the drag coefficient C d To the maximum, that is, the electrical connector 100 has the greatest resistance to the fluid in the flow channel, and the electrical connector 100 receives the greatest longitudinal impact force, thereby inducing the longitudinal vibration of the electrical connector 100 to be the strongest; when the width to thickness ratio D/ When B is greater than 0.5, the drag coefficient C d gradually decreases.
- the width-thickness ratio D/B is greater than 4
- the drag coefficient C d tends to be stable, and as the width-to-thickness ratio D/B increases, the drag coefficient C d reaches a minimum. That is, the electrical connector 100 has the least resistance to the fluid in the flow channel, and the electrical connector 100 is subjected to the longitudinal impact force that is minimized, whereby the induced longitudinal vibration of the electrical connector 100 is the weakest.
- the charging element is usually disposed in a direction parallel to the flow direction of the fluid, and the electrode extending from the end of the charging element is also generally parallel to the flow direction of the fluid.
- the connection faces 122, 123 and the second connection portion of the first connection portion 120 In order to be able to provide a connection hole on the first connection portion 120 and the second connection portion 130 and improve the connection strength of the electrode to the electrical connector 100, it is necessary to increase the connection faces 122, 123 and the second connection portion of the first connection portion 120.
- the connecting faces 122, 123 of the first connecting portion 120 and the connecting faces 132, 133 of the second connecting portion 130 are larger in the direction perpendicular to the fluid flow direction than the main body portion 110 is perpendicular to the fluid flow direction.
- the electrical connector 100 is formed of a substantially rectangular plate-like member made of a metal material such as copper or aluminum and having good electrical conductivity.
- the first connection portion 120 and the second connection portion 130 of the electrical connector 100 have a larger contact surface with the electrode 204 to facilitate mounting, between the main body portion 110 and the first connection portion 120 and between the main body portion 110 and the second connection
- the portions 130 have torsion portions 160 and 170, respectively, and the torsion angle is 90°.
- the torsion portions 160 and 170 may have other twist angles depending on mounting conditions such as the position and orientation of the charged element electrodes to be connected.
- first connecting portion 120 and the second connecting portion 130 may also be fabricated by other methods such as by a molding process.
- 6 shows a top view of an electrical connector 100 in accordance with another embodiment of the present invention, as shown, alternatively, between the first connection portion 120 and the body portion 110 and/or the second connection portion 130 and the body
- the torsion portions 160 and 170 may not be provided between the portions 110, that is, the torsion angle is 0°.
- the first connecting portion 120 and the second connecting portion 130 and the main body portion 110 may be of a unitary structure, or a separate structure may be employed.
- the electrical connector 100 is capable of collecting and measuring state parameters such as pressure, temperature, velocity, and flow rate of fluid flowing through the electrical connector 100 in the flow channel. As shown in FIGS. 5 to 7, the electrical connector 100 acquires the pressure at a certain point in the fluid, including the total pressure, by the total pressure collecting portion 140, the static pressure collecting portion 150, and the back pressure collecting portion 210 disposed thereon. Static pressure, dynamic pressure and back pressure, and calculate the flow velocity, flow rate, drag coefficient and other parameters according to the above pressure. In the prior art, the pressure detector or the sampling device is separately provided in the flow channel to obtain the location.
- the pressure indication value at the signal source which affects the measured value to a certain extent, and cannot restore the original state of the fluid field in the flow channel.
- the electrical connector 100 of the embodiment of the present invention has both an acquisition and measurement function, and a separate detecting device is not introduced in the flow channel, so that the state parameter of the fluid can be measured more accurately.
- the total pressure collecting portion 140 includes a total pressure pressing hole 141 provided on the upstream surface 111, a total pressure output port 143 provided on the first connecting portion 120, and a main pressure portion 143 disposed in the main body portion 110 to communicate the total pressure pressing hole 141. And the total pressure delivery passage 142 of the total pressure output interface 143.
- the total pressure pressing hole 141 is disposed on the upstream surface 111, and the upstream surface 111 faces the upstream direction of the flow direction in the flow path, and the opening of the total pressure pressing hole 141 faces the flow direction for measuring the fluid on the upstream surface.
- the total pressure (or stagnation pressure) generated on 111 is disposed on the upstream surface 111, and the upstream surface 111 faces the upstream direction of the flow direction in the flow path, and the opening of the total pressure pressing hole 141 faces the flow direction for measuring the fluid on the upstream surface.
- the total pressure pressing hole 141 is a smooth hole without burrs, and the shape of the hole may be a circle, an ellipse, a polygon or the like.
- the flow surface 111 facing the fluid flow direction is not only affected by the static pressure of the fluid, but also by the dynamic pressure of the fluid, and the static pressure and the dynamic pressure together constitute a total effect on the upstream surface 111.
- Pressure Since the dynamic pressure is directional, that is, acts in the fluid flow direction, preferably, the axial direction of the total pressure pressing hole 141 is disposed along the fluid flow direction such that the total pressure pressing hole 141 is in line with the fluid flow direction. The angle between the axial direction of the total pressure pressing hole 141 and the direction of fluid flow is zero.
- the total pressure pressing hole 141 may be disposed at any position on the upstream surface 111.
- the total pressure pressing hole 141 is disposed at a substantially central position of the upstream surface 111 for the pair to be flown to the total pressure pressing hole.
- the fluid in 141 i.e., the maximum flow rate of the fluid upstream of the location of the total pressure take-up orifice 141, is measured.
- the total pressure transmission passage 142 is disposed inside the main body portion 110, the inlet portion of the total pressure transmission passage 142 is in communication with the total pressure extraction pressure hole 141, and the outlet portion of the total pressure transmission passage 142 is extended to the first connection of the electrical connection member 100.
- the portion 120 is configured to deliver the total pressure to the total pressure output interface 143.
- the total pressure transmission passage 142 may be formed directly inside the main body portion 110.
- the total pressure transfer passage 142 is a separate conduit embedded in a pre-formed slot in the electrical connector 100 such that the top surface of the total pressure transfer passage 142 does not exceed the surface of the upstream surface 111, preferably, total The top surface of the pressure transfer conduit 142 is flush with the surface of the upstream surface 111.
- the top surface of the total pressure transfer conduit 142 has the same surface structure as the surface of the upstream flow surface 111, for example, the entire upstream surface including the top surface of the total pressure transfer conduit 142 is coated with an anti-corrosion layer.
- the total pressure transfer passage 142 is a separate conduit that is threaded into a pre-formed passageway disposed within the electrical connector 100.
- the total pressure output interface 143 may be disposed on a surface of the body portion 110 or on a surface of the connecting portions 120, 130. In order not to affect the flow field, the total pressure output interface 143 is disposed on the first connection portion 120 or the second connection portion 130 and communicates with the outlet portion of the total pressure transmission passage 142. As shown in FIG. 5, the total pressure output interface 143 is disposed on the end surface of the first connecting portion 120. Alternatively, the total pressure output interface 143 may also be disposed on the end surface of the second connecting portion 130.
- the total pressure output interface 143 may be disposed on the connection surface 122 or the connection surface 123 of the first connection portion 120 or the connection surface 132 or the connection surface 133 of the second connection portion 130. As shown in FIG. 6, the total pressure output interface 143 may be disposed on the connecting surface 122 of the first connecting portion 120.
- the static pressure collecting portion 150 includes a static pressure tapping hole 151 provided on the first side surface 112, a static pressure output interface 153 disposed on the first connecting portion 120, and a static pressure output port 153 disposed in the main body portion 110 to communicate the static pressure tapping hole 151. And a static pressure transmission passage 152 of the static pressure output interface 153.
- the static pressure tapping hole 151 is disposed on the first side surface 112 and is disposed such that fluid does not generate any dynamic pressure component in the static pressure tapping hole 151.
- the axial direction of the static pressure tapping hole 151 is perpendicular to the fluid flow direction.
- static The press-fitting hole 151 may also be disposed on the second side 113.
- the number of static pressure tapping holes 151 may be plural.
- the static pressure tapping holes 151 may be provided on one or both of the first side face 112 and the second side face 113.
- the static pressure tapping hole 151 may be disposed at any position on the first side 112 and/or the second side 113.
- the static pressure tapping hole 151 is disposed at a position close to the total pressure pressing hole 141 in the fluid flow direction, for example, in a line along the fluid flow direction.
- the axial direction of the static pressure tapping hole 151 and the axial direction of the total pressure tapping hole 141 perpendicularly intersect each other.
- the static pressure transmission passage 152 is disposed inside the main body portion 110, the inlet portion of the static pressure transmission passage 152 is in communication with the static pressure pressure-receiving hole 151, and the outlet portion of the static pressure transmission passage 152 is extended to the first connection portion 120 of the electrical connection member 100.
- the static pressure transmission passage 152 may be formed directly inside the main body portion 110.
- the static pressure transmission passage 152 is a separate duct embedded in a pre-formed slot on the electrical connector 100 such that the top surface of the static pressure transmission passage 152 does not exceed
- the surface of the first side 112 preferably, the top surface of the static pressure transfer conduit 152 is flush with the surface of the first side 112.
- the top surface of the static pressure transfer conduit 152 has the same surface structure as the surface of the first side 112, for example, the entire first side including the top surface of the static pressure transfer conduit 152 is coated with an anti-corrosion layer.
- the static pressure transfer passage 152 is a separate conduit that is threaded into a pre-formed passageway disposed within the electrical connector 100.
- the static pressure output interface 153 is disposed on the first connection portion 120 or the second connection portion 130 and communicates with the outlet portion of the static pressure transmission passage 152. As shown in FIG. 5, the static pressure output interface 153 is disposed on the end surface of the first connecting portion 120. Alternatively, the static pressure output interface 153 may also be disposed on the end surface of the second connecting portion 130. Alternatively, the static pressure output interface 153 may be disposed on the connection surface 122 or the connection surface 123 of the first connection portion 120 or the connection surface 132 or the connection surface 133 of the second connection portion 130. As shown in FIG. 6, the static pressure output interface 153 is disposed on the connection surface 123 of the first connection portion 120.
- the static pressure output interface 153 and the total pressure output interface 143 may be disposed on the same or different connection portions.
- the static pressure output interface 153 and the total pressure output interface 143 may be disposed at the same or different end portions and/or connection faces.
- the static pressure output interface 153 may be disposed on the connection surface 123
- the total pressure output interface 143 may be disposed on the connection surface 122, and vice versa.
- the invention collects and measures the pressure exerted on the flow surface 111 by the fluid based on the principle of the pitot-static tube.
- the total pressure pressing hole 141 and the total pressure transmission passage 142 communicate with each other to constitute a pitot tube, and the static pressure pressure receiving hole 151 and the static pressure transmission passage 152 communicate with each other to constitute a static pressure tube, through the total pressure output interface 143 and the static pressure output interface.
- 153 can obtain the fluid dynamic pressure acting on the total pressure pressing hole 141, that is, the difference between the total pressure and the static pressure, and the fluid dynamic pressure is substituted into the Bernoulli equation to obtain the fluid flow rate at the total pressure pressing hole 141, thereby The flow can be calculated.
- FIG. 7 shows the back pressure collection portion 210 disposed on the electrical connector 100.
- the back pressure collecting portion 210 can also be set to collect and measure the backflow surface pressure p l of the electrical connector 100.
- the back pressure collecting portion 210 includes a back pressure tapping hole 211 provided on the backflow surface 116, a back pressure output port 213 provided on the connecting portion (not shown), and being disposed in the body portion (not shown) to communicate The back pressure transmitting passage 212 and the back pressure transmitting passage 212 of the back pressure output port 213 are pressed.
- the back pressure take-up hole 211 is disposed on the back flow surface 116, and the back flow surface 116 faces away from the upward wind direction in the flow channel, and the back pressure take-up hole 211 has an opening opposite to the flow direction for collecting and measuring the fluid.
- Back pressure (or base pressure) generated on the backflow surface 116.
- the back pressure take-up hole 211 is a smooth hole without a burr, and the shape of the hole may be a circle, an ellipse, a polygon, or the like.
- the back pressure take-up hole 211 may be disposed at any position on the backflow surface 116.
- the back pressure transmission passage 212 is disposed inside the main body portion, and the inlet portion of the back pressure transmission passage 212 communicates with the back pressure take-up hole 211, and the outlet portion of the back pressure transmission passage 212 extends to the connection portion of the electrical connector 100 for The back pressure is delivered to the back pressure output interface 213.
- the back pressure transmission passage 212 may be formed directly inside the body portion.
- the back pressure transmission passage 212 is a separate conduit embedded in a pre-formed slot in the electrical connector 100 such that the top surface of the back pressure transmission passage 212 does not exceed the surface of the backflow surface 116, preferably, the back The top surface of the pressure transfer conduit 212 is flush with the surface of the backflow surface 116.
- the top surface of the back pressure transmission pipe 212 has the same surface structure as the surface of the back flow surface 116, for example, coating the entire back flow surface 116 including the top surface of the back pressure transmission pipe 212, Such as anti-corrosion layer.
- the back pressure transfer passage 212 is a separate conduit that is threaded into a pre-formed passageway disposed within the electrical connector 100.
- the back pressure output interface 213 may be disposed on a surface of the body portion 110 or on a surface of the first connection portion 120 or the second connection portion 130. In order not to affect the flow field, preferably, the back pressure output interface 213 is disposed on the first connection portion 120 or the second connection portion 130 and communicates with the outlet portion of the back pressure transmission passage 212.
- the back pressure output interface 213 may be disposed on the end faces of the first connection portion 120 or the second connection portion 130. Alternatively, the back pressure output interface 213 may also be disposed on the connection faces 122, 123 of the first connection portion 120 or the connection faces 132, 133 of the second connection portion 130.
- the electrical connector 100 itself has a conductive function.
- the current density in the cross section of the electrical connector 100 is not uniform, and a skin effect is generated.
- the current is mainly concentrated on the surface of the electrical connector 100, and the current density in the central portion of the cross section of the electrical connector 100 is small, even when transmitting high frequency currents, and is of little value.
- providing the total pressure collecting portion 140, the static pressure collecting portion 150, and the back pressure collecting portion 210 inside the electrical connector 100 saves the material for manufacturing the electrical connector 100, and The path of the pressure (or flow rate) measurement sampling is formed, which not only does not affect the electrical conductivity of the electrical connector 100, but also enables the function of collecting and measuring the fluid flow state.
- the electrical connector 100 transmits electrical energy in the fluid, in addition to the longitudinal vibration caused by the above-mentioned fluid pressure, it also couples vibration with the fluid to cause Karman vortex breakdown.
- Karman vortex principle as shown in FIG. 1, when the electrical connector 100 is in a fluid, fluid flowing through the first side 112 and the second side 113 may occur on the surfaces of the first side 112 and the second side 113.
- the Karman vortex phenomenon causes the regular vortex on both sides to fall off downstream, and the fluid on the vortex shedding side generates energy loss due to the reflux phenomenon, and the fluid flow rate is lower than the flow velocity of the fluid on the other side where the vortex shedding does not occur. .
- the convective heat transfer rate is proportional to the 0.8th power of the fluid flow rate. Therefore, when the vortex shedding occurs alternately on both sides of the electrical connector 100, a vortex occurs.
- the temperature of the side wall on the detached side is inconsistent with the temperature of the side wall on the side where no vortex shedding.
- the frequency of this temperature change corresponds to the frequency of the alternating force acting on the two sides of the fluid and the transverse vibration frequency of the electrical connector 100 in the direction perpendicular to the fluid flow direction caused by the alternating force, by measuring the temperature change The frequency allows measurement of the lateral vibration frequency of the electrical connector.
- a pressure indicator or a sampling device is separately provided in the flow channel to obtain a reliable pressure indication value at the signal source.
- the interventional detection affects the measurement value to a certain extent, and the original fluid field in the flow channel cannot be restored.
- the present invention measures the lateral vibration frequency of the electrical connector 100 in accordance with the Karman vortex principle.
- the electrical connector 100 obtains temperature changes caused by the Karman vortex phenomenon on the two sides by the temperature sensing elements respectively disposed on the first side 112 and the second side 113, and calculates the effect on the two sides according to the above temperature change.
- the frequency of the alternating force and the lateral vibration frequency of the electrical connector 100 has both acquisition and measurement
- the function of the temperature parameter does not introduce a separate detection device in the flow channel, so that the state parameters of the fluid can be measured more accurately.
- FIG. 5 and 6 show a first temperature sensing element 181 and a second temperature sensing element 182 of the electrical connector 100, the first temperature sensing element 181 and the second temperature sensing element 182 being respectively disposed on the first side of the electrical connector 100
- the 112 and second side 113 are configured to collect temperatures flowing through the first side 112 and the second side 113.
- FIG. 8 is a schematic cross-sectional view of the electrical connector 100, further showing the arrangement of the first temperature sensing element 181 and the second temperature sensing element 182. In FIG.
- the first temperature sensing element 181 and the second temperature sensing element 182 are respectively disposed in an electrically insulating manner at positions opposite to each other on the first side 112 and the second side 113, for example, disposed on the first side 112 and the second side.
- the first temperature sensing element 181 and the second temperature sensing element 182 may be disposed at any position of the first side 112 and the second side 113 and may be plural in number. Further, the first temperature sensing element 181 and the second temperature sensing element 182 should maintain a positional relationship with each other and correspond one-to-one in number.
- the outer surfaces of the first temperature sensing element 181 and the second temperature sensing element 182 do not exceed the first side 112 and the second The surface of the side 113.
- the outer surface of the first temperature sensing element 181 is flush with the surface of the first side surface 181
- the outer surface of the second temperature sensing element 182 is flush with the surface of the second side surface 113.
- the outer surfaces of the first temperature sensing element 181 and/or the second temperature sensing element 182 have the same surface structure as the surface of the first side surface 112 and/or the second side surface 113 on which they are located, for example, the same degree of roughness.
- the first temperature sensing element mounting recess 114 may be disposed at a position opposite to each other on the first side surface 112 and the second side surface 113.
- a second temperature sensing element mounting recess 115 In order to maintain insulation between the temperature sensing element and the electrical connector 100, preferably, an electrically insulating layer may be applied to the surfaces of the first temperature sensing element mounting recess 114 and the second temperature sensing element mounting recess 115.
- the electrical connector 100 in addition to transmitting electrical energy, can flow through the electrical connector 100 in the flow channel without introducing a separate sensor and its test system so as not to change the flow field in which the electrical connector 100 is located.
- the fluid is measured at a frequency of an alternating force applied to the electrical connector 100 in a direction perpendicular to the direction of fluid flow, thereby obtaining a frequency parameter of the lateral vibration induced by the alternating force of the electrical connector 100.
- the lateral vibration is caused by the Karman vortex effect on the both sides 112, 113 of the electrical connector 100 based on the induced mechanism of the lateral vibration of the electrical connector 100 in the fluid flow path.
- the two sides 112, 113 of the electrical connector 100 alternately vortex off, causing lateral vibration of the electrical connector 100.
- the lateral vibration of the electrical connector 100 can be reduced by providing a spiral projection on the surface of the electrical connector 100. As shown in FIG. 9, winding a spiral 220 having a certain pitch on the electrical connector 100 can destroy the order of the vortex alternately falling off on the two sides 112, 113 of the electrical connector 100, so that the electrical connection is made.
- the vortex on the two side faces 112, 113 of the member 100 can be simultaneously detached or alternately detached alternately, thereby suppressing lateral vibration of the electrical connector 100.
- the pitch of the spiral 220 can be adjusted according to the frequency of the lateral vibration of the electrical connector 100.
- the pitch of the spiral 220 is optimally designed in accordance with the maximum lateral vibration amplitude of the electrical connector 100.
- the spiral 220 can be made of a metallic material but does not form a closed loop.
- the spiral 220 may be made of a non-conductive material, such as a non-metallic material.
- the spiral protrusions may also be integrally formed on the surface of the electrical connector 100 on.
- a spiral projection is integrally formed on the surface of the electrical connector 100 by an immersion process.
- the spiral protrusion should avoid the area where the at least one of the pressure tapping holes 141, 151 and 211 is disposed on the surface of the electrical connector 100, so as not to affect the flow field environment around the pressure tapping hole, thereby causing measurement error.
- FIG. 10 shows a schematic diagram of an electrical connector 400 in accordance with another embodiment of the present invention.
- the electrical connector 400 includes a main body portion 410 and a connecting portion 420, 430.
- the main body portion 410 is annular.
- One end of the connecting portion 420, 430 is connected to the annular main body portion 410, and the other end is connected to the electric heating tube 200.
- the electrical connector 400 has the same structure as the electrical connector 100 shown in FIG. 1 and will not be described herein.
- FIGS. 11 to 14 show the fluid state testing device of the present invention.
- the fluid state testing device of the present invention can process signals such as pressure and temperature collected by the electrical connector 100 to obtain a fluid state.
- FIGS. 11 to 14 respectively show processing means for processing the pressure and temperature signals collected by the electrical connector 100.
- the fluid state testing device includes an electrical connector 100 and a first pressure measuring portion 180.
- the first pressure measuring portion 180 is connected to the total pressure output interface 143 and the static pressure output interface 153 of the electrical connector 100 for measuring the pressure values acquired from the total pressure output interface 143 and the static pressure output interface 153.
- the first pressure measuring portion 180 is a diaphragm type differential pressure sensor, and the diaphragm type differential pressure sensor includes two chambers separated by a diaphragm, and the two chambers respectively pass through the pressure transmitting passage and the total pressure.
- the output interface 143 is in communication with the static pressure output interface 153.
- the diaphragm type differential pressure sensor can output a pressure difference between the total pressure and the static pressure, that is, dynamic pressure.
- the first pressure measuring portion 180 may include two pressure sensors, which are a first pressure sensor and a second pressure sensor, respectively, the first pressure sensor is connected to the total pressure output interface 143, and the second pressure sensor is connected to the static pressure output interface.
- the 153 is connected to measure the total pressure and static pressure of the fluid, respectively.
- the fluid state test device is further A flow rate calculation unit (not shown) is included, and the flow rate calculation unit can calculate the flow rate of the fluid flowing through the electrical connector 100 based on the pressure difference output from the differential pressure sensor or based on the dynamic pressure and the static pressure. Further, the fluid state testing device is also capable of calculating the flow rate of the fluid flowing through the electrical connector 100 based on the flow rate. The measurement of these fluid states facilitates obtaining information on the longitudinal vibration of the electrical connector 100, thereby enabling adjustment of the fluid state or designing the structure of the electrical connector 100 to adjust and improve longitudinal vibration of the electrical connector 100.
- the fluid state testing device may further include a second pressure measuring portion 230.
- the second pressure measuring unit 230 is connected to the total pressure output interface 143 and the back pressure output interface 213 of the electrical connector 100 for measuring the pressure difference between the total pressure output interface 143 and the back pressure output interface 213.
- the pressure measuring structure of the second pressure measuring portion 230 is similar to the configuration in which the total pressure collecting portion 140 and the static pressure collecting portion 150 perform pressure measurement by the first pressure measuring portion 180. In FIG.
- the second pressure measuring portion 230 is a diaphragm type differential pressure sensor, and the diaphragm type differential pressure sensor includes two chambers separated by a diaphragm, and the two chambers respectively pass through a pressure transmission passage and a total pressure output.
- the interface 143 is in communication with the back pressure output interface 213.
- the diaphragm type differential pressure sensor can output a pressure difference between the total pressure and the back pressure.
- the second pressure measuring portion 230 may include two pressure sensors, a first pressure sensor and a second pressure sensor, respectively, the first pressure sensor is connected to the total pressure output interface 143, and the second pressure sensor is connected to the back pressure output interface.
- the 213 is connected to measure the total pressure and back pressure of the fluid, respectively.
- the fluid state testing device further includes a drag coefficient calculating unit 240, and the multiplier 241 of the drag coefficient calculating unit 240 generates a dynamic pressure (a difference between the total pressure and the static pressure) and a projection of the upstream surface according to the first pressure measuring unit 180.
- the product of the area calculates the dynamic pressure
- the multiplier 242 calculates the resistance of the electrical connector 100 based on the product of the differential pressure (the difference between the total pressure and the back pressure) obtained by the second pressure measuring portion 230 and the projected area of the upstream surface
- the divider 243 calculates the resistance coefficient C d of the electrical connector 100 in the fluid flow path, that is, the resistance/dynamic pressure, thereby obtaining the specific thickness and width dimensions of the electrical connector 100, thereby realizing the optimal design of the characteristic dimension of the electrical connector 100.
- the fluid state testing device may further include a frequency computing unit 190 connected to the first temperature sensing element 181 and the second temperature sensing element 182 for measuring the lateral vibration frequency of the electrical connector.
- the frequency operation unit 190 receives the signals representing the temperature of the first temperature sensing element 181 and the second temperature sensing element 182, and calculates the frequency of the alternating force acting on the electrical connector 100 in a direction perpendicular to the flow direction of the fluid. That is, the lateral vibration frequency of the electrical connector 100.
- the signals characterizing the temperature of the first temperature sensing element 181 and the second temperature sensing element 182 are directed to the frequency operation section 190 through respective sensor leads (not shown).
- the sensor leads of the two temperature sensing elements may be passed through the lead channel formed in advance in the electrical connector 100.
- the sensor leads are routed in slots formed in the surface of the body portion 110, the sensor leads not exceeding the surfaces of the first side 112 and the second side 113, preferably the peripheral top of the sensor leads and the first side 112 and The surface of the second side 113 is flush so that it does not affect the fluid boundary layer on the side of the electrical connector.
- the sensor lead may be drawn from a connection surface or an end surface of one or both of the first connection portion 120 and the second connection portion 130.
- the sensor leads of the first temperature sensing element 181 and the second temperature sensing element 182 are taken out from the same connection portion, that is, the first connection portion 120 or the second connection portion 130.
- the frequency calculation unit 190 is disposed outside the flow path, and the sensor lead is connected to the frequency calculation unit 190 through the flow path wall, thereby supplying the frequency calculation unit 190 with a signal indicative of the temperature.
- the first pressure measuring portion 180 and the second pressure measuring portion 230 and other signal processing devices may also be disposed outside the flow path wall through corresponding lead wires and electricity.
- the total pressure collecting unit 140, the static pressure collecting unit 150, and the back pressure collecting unit 210 on the connecting member 100 are connected.
- Fig. 14 further shows the circuit configuration of the frequency operation unit 190 of one embodiment of the present invention.
- the frequency calculation unit 190 includes a first bridge resistor 191, a second bridge resistor 192, a constant current source 193, a power source 194, an amplifier 195, a filter 196, a flip flop 197, and a converter 198.
- the first temperature sensing element 181, the first bridge resistor 191, the second bridge resistor 192, and the second temperature sensing element 182 are electrically connected in sequence into a bridge circuit, between the first temperature sensing element 181 and the second temperature sensing element 182.
- the node and the node between the first bridge resistor 191 and the second bridge resistor 192 are respectively connected to the two poles of the constant current source 193, wherein the constant current source 193 is connected to the power source 194 for passing the power source 194 through the constant current source.
- the current supplied to the bridge loop by 193 remains constant.
- a node between the first temperature sensing element 181 and the first bridge resistor 191 and a node between the second temperature sensing element 182 and the second bridge resistor 192 are connected to the amplifier 195 via a wire for outputting a voltage signal to the amplifier 195. .
- the first temperature sensing element 181 and the second temperature sensing element 182 have the same structure.
- the first bridge resistor 191 and the second bridge resistor 192 may have the same resistance value and are measured using a balanced bridge such that the initial output voltage signal is zero.
- the first bridge resistor 191 and the second bridge resistor 192 may have different resistance values, and the measurement is performed using an unbalanced bridge, that is, the voltage signal of the initial output is not zero.
- a constant current is passed through the first temperature sensing element 181 and the second temperature sensing element 182.
- the temperatures of the first temperature sensing element 181 and the second temperature sensing element 182 are the same, such that The corresponding resistance values in the bridge loop are equal, and the input voltage of the amplifier 195 is zero.
- the first side 112 and the first side are caused by the vortex falling downstream
- the temperatures sensed by the first temperature sensing element 181 and the second temperature sensing element 182 on the two side faces 113 are inconsistent, and this difference in temperature causes the bridge circuit to output a voltage to the amplifier 195.
- the voltage is processed by the filter 196, the flip-flop 197 to output a pulse signal indicative of the frequency of the alternating force acting on the side of the electrical connector 100, wherein the frequency of the pulse signal output represents the frequency at which the electrical connector 100 is laterally vibrated.
- the flip-flop 197 can also be coupled to the transducer 198 to process the pulsed signal through the transducer 198 to output an analog signal, wherein the analog signal represents a change in intensity of the convective heat transfer of the fluid on the first side 112 and the second side 113.
- the first temperature sensing element 181 and the second temperature sensing element 182 should use a component having a small time constant to sense the vortex shedding frequency.
- the temperature sensing element is a thermistor that is temperature sensitive and capable of exhibiting different resistance values at different temperatures.
- the temperature sensing element may also be a thermal resistor, a thermocouple, a fiber optic temperature sensor, or the like.
- frequency computing portion 190 can be any device capable of measuring frequency, such as an oscilloscope.
- the fluid heat exchange system includes a circular annular fluid flow path 300, a plurality of electric heating tubes 200 disposed in the flow path, and a plurality of electrical connectors 100 for electrically connecting the plurality of electric heating tubes 200.
- the fluid flowing in the fluid flow path 300 may be a liquid or a gas.
- FIG. 16 shows the structure of the electric heating tube 200.
- the electric heating tube 200 includes a metal outer tube 201, a resistance wire 202 disposed in the metal outer tube 201, and a filler 203 filled inside the metal outer tube 201.
- the filler is usually selected from crystalline magnesium oxide powder having good insulating properties and thermal conductivity.
- a spiral fin 206 is surrounded on the outer circumference of the metal outer tube 201.
- the electric heating tube 200 has a W shape, and the outer ends of the two end portions of the metal outer tube 201 are provided with a thread, and the end portion is disposed through the flow.
- the connecting hole of the fixed end 301 on the inner wall of the track is fastened to the fixed end 301 by a nut, so that the electric heating tube 201 is fixed to the inner wall of the flow path in a direction parallel to the flow direction of the fluid.
- Two electrodes 204 are respectively disposed at both ends of the metal outer tube 201, and the outer circumference of the electrode 204 is provided with a thread for connection with the electrical connector 100.
- FIG. 15 shows the manner in which the electrical connector 100 is connected to the electrode 204 of the electric heating tube 200.
- the electrode 204 is fastened to the electrical connector 100 by a nut through a connecting hole 121 provided on the first connecting portion 120 of the electrical connector 100 or a connecting hole 131 on the second connecting portion 130.
- An insulating porcelain head 205 is further disposed between the electrode 204 of the electric heating tube 200 and the end of the metal outer tube 201 for electrically isolating between the electrical connector 100 and the metal outer tube 201.
- FIG. 17 shows the planar deployment of the electric heating tube 200 and the electrical connector 100 disposed in the flow path 300.
- g indicates gravity downward, which coincides with the flow direction of the fluid passing through the electric heating tube 200 longitudinally, and the electric heat source electrode and its electrical connection member are located upstream of the spiral fin of the electric heating tube.
- the six electric heating tubes 200 as electric energy loads can be phase-separated, for example, divided into phase A (i.e., U phase), phase B (i.e., phase V), and phase C (i.e., phase W).
- the two electric heating pipes 200 are electrically connected between the A phase and the neutral line N, and are respectively connected between the power phase line A1 and the neutral line N and the power phase line A2 and the center line N.
- Two electric heating pipes 200 are electrically connected between the B phase and the neutral line N, and are respectively connected between the power phase line B1 and the neutral line N and the power phase lines B2 and N.
- Two electric heating pipes 200 are electrically connected between the C phase and the neutral line N, and are respectively connected between the power phase line C1 and the neutral line N and the power phase line C2 and the center line N.
- other numbers of electric heating pipes can be electrically connected between the A phase, the B phase, the C phase, and the neutral line N.
- the electrodes of the electric heating tube 200 are all arranged upwards, so that the electrical connector 100 phase
- the electric heating tube 200 is located upstream in the direction of fluid flow.
- the electrodes of the electric heating tube 200 are all disposed downward so that the electrical connector 100 is located downstream of the electric heating tube 200 in the fluid flow direction.
- the width of the electrical connector is greater than the thickness of the electrical connector, and the electrical connector is on the downstream leeward side of the spiral fin of the electric heating tube.
- the two electric heating tubes 200 are connected in parallel, that is, between the phase lines of the two electric heating tubes 200 and the intermediate lines are respectively connected by electrical connectors 100.
- Two adjacent electrical connectors 100 are spaced apart from one another.
- the electric heating tubes 200 in the same phase load may also be connected in series or in series and parallel using the electrical connectors 100.
- the collection, measurement, and monitoring of fluid flow conditions can be accomplished using the electrical connector 100 and fluid state testing device of the present invention so that fluid conditions can be adjusted.
- the pressure of the fluid flowing through a certain measurement position of the electrical connector 100 can be collected by the total pressure collecting portion 140 and the static pressure collecting portion 150 provided on the electrical connector 100, acting on the electrical connector 100 based on the fluid.
- the dynamic pressure that is, the difference between the total pressure and the static pressure, can obtain the fluid flow rate at the measurement position.
- the fluid flow rate is an important factor affecting the heat exchange efficiency of the electric heating tube 100 and the fluid.
- the impact on the electrical connector 100 may be caused on the one hand, causing the vibration of the electrical connector 100 in the direction of fluid flow, causing fatigue damage of the electrode of the electric heating tube, and on the other hand, directly improving the heat loss effect on the pressure loss.
- the resistance coefficient of the electrical connector 100 to the fluid can be obtained by the back pressure collecting portion 210 disposed on the electrical connector 100, and based on this, the feature size of the electrical connector having a rectangular cross section is optimized. Achieve the effect of reducing the resistance and reducing the longitudinal vibration.
- the electrical connector 100 and the fluid state testing device can measure and monitor the fluid flow rate, and control the fluid flow rate within a range that is advantageous for heat exchange efficiency and ensures that the electrode is not damaged.
- the lateral vibration of the electrical connector 100 is the electrode that causes the electric heating tube connected thereto.
- the main reason for the occurrence of fatigue damage is that the electrical connector 100 of the embodiment of the present invention can measure the frequency of lateral vibration of the electrical connector 100 by the temperature sensing element disposed on both sides thereof, thereby adjusting the power by controlling the flow state of the fluid.
- the lateral vibration frequency of the connector 100 controls the frequency within a range that does not adversely affect the electrode of the electric heating tube.
- the electrical connection member 100 of the embodiment of the present invention can be used for the test method. Simulating the real environment in which the electric heating tube is located, changing the fluid transport rate by means of a speed governing device, obtaining electrical connections of different widths, thicknesses or other non-circular structures of specific dimensions. The Karman vortex street at different flow rates induces fluid flow to the vertical direction. The frequency of vibration, the law of vibration induced by fluid flow. Based on the test method, the fluid flow state, the structure of the electrical connector, and the like are pre-designed to avoid the damage of the high-frequency vibration of the electrical connector to the flow field.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
Description
Claims (51)
- 一种能够测量流道中的流体状态的电连接件(100,400),其特征在于,包括主体部(110,410)、连接部(120,130,420,430)、总压采集部(140)和静压采集部(150),其中:An electrical connector (100, 400) capable of measuring a state of a fluid in a flow channel, comprising: a body portion (110, 410), a connecting portion (120, 130, 420, 430), a total pressure collecting portion (140), and a static pressure collecting portion (150), among them:所述连接部(120,130,420,430)使所述主体部(110,410)与设置在所述流道中的带电元件电气连接;The connecting portion (120, 130, 420, 430) electrically connects the main body portion (110, 410) with a charging member disposed in the flow channel;所述总压采集部(140)包括设置在所述主体部(110,410)的朝向所述流体的流动方向的第一部位上的总压取压孔(141);并且The total pressure collecting portion (140) includes a total pressure pressing hole (141) provided at a first portion of the body portion (110, 410) facing a flow direction of the fluid;所述静压采集部(150)包括设置在所述主体部(110,410)的平行于所述流体的流动方向的第二部位上的静压取压孔(151)。The static pressure collecting portion (150) includes a static pressure tapping hole (151) provided at a second portion of the main body portion (110, 410) parallel to a flow direction of the fluid.
- 根据权利要求1所述的电连接件(100,400),其特征在于,所述主体部(110,410)包括朝向所述流体的流动方向的迎流面(111)以及与所述流体的流动方向平行的第一侧面(112)和第二侧面(113),所述第一部位位于所述迎流面(111)上,所述第二部位位于所述第一侧面(112)和所述第二侧面(113)中的至少一者上。The electrical connector (100, 400) according to claim 1, wherein the body portion (110, 410) includes an upstream surface (111) toward a flow direction of the fluid and is parallel to a flow direction of the fluid a first side (112) and a second side (113), the first portion being located on the upstream surface (111), the second portion being located at the first side (112) and the second side At least one of (113).
- 根据权利要求2所述的电连接件(100,400),其特征在于,所述迎流面(111)为平面或曲面。The electrical connector (100, 400) according to claim 2, characterized in that the upstream surface (111) is a flat surface or a curved surface.
- 根据权利要求3所述的电连接件(100,400),其特征在于,所述第一部位所在的表面与所述流体的流动方向垂直。The electrical connector (100, 400) of claim 3 wherein the surface on which the first portion is located is perpendicular to the direction of flow of the fluid.
- 根据权利要求2所述的电连接件(100,400),其特征在于,所述第一侧面(112)和所述第二侧面(113)彼此平行;所述第一侧面(112)和所述第二侧面(113)为平面或曲面。The electrical connector (100, 400) according to claim 2, wherein the first side (112) and the second side (113) are parallel to each other; the first side (112) and the first The two sides (113) are flat or curved.
- 根据权利要求1所述的电连接件(100,400),其特征在于,所述主体部(110,410)沿与所述流体的流动方向平行的方向上的尺寸大于所述主体部(110,410)沿与所述流体的流动方向垂直的方向上的尺寸。The electrical connector (100, 400) according to claim 1, wherein a dimension of the body portion (110, 410) in a direction parallel to a flow direction of the fluid is greater than that of the body portion (110, 410) The dimension in the direction in which the flow direction of the fluid is perpendicular.
- 根据权利要求6所述的电连接件(100,400),其特征在于,所述主体部(110,410)的垂直于所述流体的流动方向的截面为矩形,并且所述主体部(110,410)的宽厚比大于4。 The electrical connector (100, 400) according to claim 6, wherein a cross section of the main body portion (110, 410) perpendicular to a flow direction of the fluid is a rectangle, and a width to thickness ratio of the main body portion (110, 410) Greater than 4.
- 根据权利要求1所述的电连接件(100,400),其特征在于,所述连接部(120,130,420,430)沿与所述流体的流动方向垂直的方向上的尺寸大于所述主体部(110,410)沿与所述流体的流动方向垂直的方向上的尺寸。The electrical connector (100, 400) according to claim 1, wherein said connecting portion (120, 130, 420, 430) has a larger dimension in a direction perpendicular to a flow direction of said fluid than said main body portion (110, 410) The dimension in the direction in which the flow direction of the fluid is perpendicular.
- 根据权利要求8所述的电连接件(100,400),其特征在于,所述连接部(120,130,420,430)位于所述主体部(110,410)的端部,并且在所述连接部(120,130,420,430)与所述主体部(110,410)之间具有扭转部(160,170),以使所述连接部(120,130,420,430)相对于所述主体部(110,410)扭转一定角度。The electrical connector (100, 400) according to claim 8, wherein the connecting portion (120, 130, 420, 430) is located at an end of the body portion (110, 410) and at the connecting portion (120, 130, 420, 430) and the body There are twisting portions (160, 170) between the portions (110, 410) to twist the connecting portion (120, 130, 420, 430) with respect to the main body portion (110, 410) by a certain angle.
- 根据权利要求9所述的电连接件(100,400),其特征在于,所述连接部(120,130,420,430)相对于所述主体部(110,410)扭转90度。The electrical connector (100, 400) according to claim 9, wherein the connecting portion (120, 130, 420, 430) is twisted by 90 degrees with respect to the body portion (110, 410).
- 根据权利要求1所述的电连接件(100,400),其特征在于,所述总压取压孔(141)的轴线方向与所述流体的流动方向平行。The electrical connector (100, 400) according to claim 1, characterized in that the axial direction of the total pressure tapping hole (141) is parallel to the flow direction of the fluid.
- 根据权利要求11所述的电连接件(100,400),其特征在于,所述总压取压孔(141)的轴线方向与所述静压取压孔(151)的轴线方向垂直相交。The electrical connector (100, 400) according to claim 11, wherein an axial direction of said total pressure pressing hole (141) intersects perpendicularly to an axial direction of said static pressure pressing hole (151).
- 根据权利要求2所述的电连接件(100,400),其特征在于,所述总压取压孔(141)设置在所述迎流面(111)的中心位置。The electrical connector (100, 400) according to claim 2, characterized in that the total pressure tapping hole (141) is disposed at a central position of the upstream surface (111).
- 根据权利要求1所述的电连接件(100,400),其特征在于,所述总压采集部(140)还包括总压输出接口(143)和总压传递通道(142),所述总压输出接口(143)设置在所述主体部(110,410)和所述连接部(120,130,420,430)中的一者上;所述总压传递通道(142)设置在所述主体部(110,410)和/或所述连接部(120,130,420,430)内以连通所述总压取压孔(141)和所述总压输出接口(143)。The electrical connector (100, 400) according to claim 1, wherein said total pressure collecting portion (140) further comprises a total pressure output interface (143) and a total pressure transmitting passage (142), said total pressure output An interface (143) is disposed on one of the main body portion (110, 410) and the connecting portion (120, 130, 420, 430); the total pressure transmitting passage (142) is disposed at the main body portion (110, 410) and/or The connecting portion (120, 130, 420, 430) is connected to communicate the total pressure pressing hole (141) and the total pressure output port (143).
- 根据权利要求14所述的电连接件(100,400),其特征在于,所述总压输出接口(143)设置在所述连接部(120,130,420,430)的表面。The electrical connector (100, 400) of claim 14 wherein said total pressure output interface (143) is disposed on a surface of said connecting portion (120, 130, 420, 430).
- 根据权利要求14所述的电连接件(100,400),其特征在于,所述静压采集部(150)还包括静压输出接口(153)和静压传递通道(152),所述静压输出接口(153)设置在所述主体部(110,410)和所述连接部(120,130,420,430)中的一者上;所述静压传递通道(152)设置在所述主 体部(110,410)和/或所述连接部(120,130,420,430)内以连通所述静压取压孔(151)和所述静压输出接口(153)。The electrical connector (100, 400) according to claim 14, wherein the static pressure collecting portion (150) further comprises a static pressure output interface (153) and a static pressure transmission channel (152), the static pressure output An interface (153) is disposed on one of the main body portion (110, 410) and the connecting portion (120, 130, 420, 430); the static pressure transmission passage (152) is disposed at the main body The body (110, 410) and/or the connecting portion (120, 130, 420, 430) are connected to communicate the static pressure tapping hole (151) and the static pressure output port (153).
- 根据权利要求16所述的电连接件(100,400),其特征在于,所述静压输出接口(153)设置在所述连接部(120,130,420,430)的表面。The electrical connector (100, 400) according to claim 16, wherein the static pressure output interface (153) is disposed on a surface of the connecting portion (120, 130, 420, 430).
- 根据权利要求16所述的电连接件(100,400),其特征在于,还包括背压采集部(210),所述背压采集部(210)包括设置在所述主体部(110,410)的背向所述流体的流动方向的第三部位上的背压取压孔(211)。The electrical connector (100, 400) according to claim 16, further comprising a back pressure collecting portion (210), the back pressure collecting portion (210) including a back side of the body portion (110, 410) A back pressure on the third portion of the flow direction of the fluid takes the pressure hole (211).
- 根据权利要求18所述的电连接件(100,400),其特征在于,所述主体部(110,410)包括背向所述流体的流动方向的背流面(116),所述第三部位位于所述背流面(116)上。The electrical connector (100, 400) according to claim 18, wherein said body portion (110, 410) includes a backflow surface (116) facing away from a flow direction of said fluid, said third portion being located at said On the backflow surface (116).
- 根据权利要求18所述的电连接件(100,400),其特征在于,所述背压采集部(210)还包括背压输出接口(213)和背压传递通道(212),所述背压输出接口(213)设置在所述主体部(110,410)和所述连接部(120,130,420,430)中的一者上;所述背压传递通道(152)设置在所述主体部(110,410)和/或所述连接部(120,130,420,430)内以连通所述背压取压孔(211)和所述背压输出接口(213)。The electrical connector (100, 400) according to claim 18, wherein said back pressure collecting portion (210) further comprises a back pressure output interface (213) and a back pressure transmission channel (212), said back pressure output An interface (213) is disposed on one of the main body portion (110, 410) and the connecting portion (120, 130, 420, 430); the back pressure transmission passage (152) is disposed at the main body portion (110, 410) and/or The connection portion (120, 130, 420, 430) is connected to the back pressure take-up hole (211) and the back pressure output interface (213).
- 根据权利要求2所述的电连接件(100,400),其特征在于,还包括第一感温元件(181)和第二感温元件(182),所述第一感温元件(181)和所述第二感温元件(182)分别以电气绝缘方式设置在所述第一侧面(112)和所述第二侧面(113)上彼此相对的位置上。The electrical connector (100, 400) according to claim 2, further comprising a first temperature sensing element (181) and a second temperature sensing element (182), said first temperature sensing element (181) and The second temperature sensing elements (182) are respectively disposed at positions opposing each other on the first side surface (112) and the second side surface (113) in an electrically insulating manner.
- 根据权利要求21所述的电连接件(100,400),其特征在于,所述第一感温元件(181)的外表面与所述第一侧面(112)平齐,并且所述第二感温元件(182)的外表面与所述第二侧面(113)平齐;所述第一感温元件(181)的外表面与所述第一侧面(112)的表面结构相同,并且所述第二感温元件(182)的外表面与所述第二侧面(113)的表面结构相同。The electrical connector (100, 400) according to claim 21, wherein an outer surface of the first temperature sensing element (181) is flush with the first side (112), and the second temperature is An outer surface of the element (182) is flush with the second side surface (113); an outer surface of the first temperature sensing element (181) is identical in surface structure to the first side surface (112), and the The outer surface of the second temperature sensing element (182) is identical to the surface structure of the second side surface (113).
- 根据权利要求21所述的电连接件(100,400),其特征在于,所述第一侧面(112)和所述第二侧面(113)上分别设置有第一感温元件安装凹部(114)和第二感温元件安装凹部(115)。The electrical connector (100, 400) according to claim 21, wherein the first side surface (112) and the second side surface (113) are respectively provided with a first temperature sensing element mounting recess (114) and The second temperature sensing element mounts a recess (115).
- 根据权利要求23所述的电连接件(100,400),其特征在于,所述第 一感温元件安装凹部(114)和所述第二感温元件安装凹部(115)的表面具有电气绝缘层。The electrical connector (100, 400) of claim 23, wherein said A surface of the temperature sensing element mounting recess (114) and the second temperature sensing element mounting recess (115) has an electrically insulating layer.
- 根据权利要求1所述的电连接件(100,400),其特征在于,所述主体部(110,410)的外表面上设置有螺旋凸起。The electrical connector (100, 400) according to claim 1, characterized in that the outer surface of the body portion (110, 410) is provided with a spiral projection.
- 根据权利要求18所述的电连接件(100,400),其特征在于,所述主体部(110,410)的外表面上设置有螺旋凸起。The electrical connector (100, 400) according to claim 18, characterized in that the outer surface of the body portion (110, 410) is provided with a spiral projection.
- 根据权利要求25或26所述的电连接件(100,400),其特征在于,所述螺旋凸起为缠绕在所述主体部(110,410)的外表面上的螺旋线。The electrical connector (100, 400) according to claim 25 or 26, wherein the spiral projection is a spiral wound on an outer surface of the main body portion (110, 410).
- 根据权利要求25或26所述的电连接件(100,400),其特征在于,所述螺旋凸起由涂覆在所述主体部(110,410)的外表面上的涂层一体形成。The electrical connector (100, 400) according to claim 25 or 26, wherein the spiral projection is integrally formed by a coating applied on an outer surface of the body portion (110, 410).
- 根据权利要求26所述的电连接件(100,400),其特征在于,所述螺旋凸起远离所述总压取压孔(141)、所述静压取压孔(151)和所述背压取压孔(211)中至少一者所处的区域。The electrical connector (100, 400) according to claim 26, wherein the spiral projection is away from the total pressure tapping hole (141), the static pressure tapping hole (151), and the back pressure The area in which at least one of the pressure holes (211) is located.
- 一种流体状态测试装置,其特征在于,包括:A fluid state testing device, comprising:电连接件(100,400),所述电连接件(100,400)包括:An electrical connector (100, 400), the electrical connector (100, 400) comprising:主体部(110,410);Main body portion (110, 410);连接部(120,130,420,430),所述连接部(120,130,420,430)使所述主体部(110,410)与设置在流道中的带电元件电气连接;a connecting portion (120, 130, 420, 430) that electrically connects the main body portion (110, 410) with a charging member disposed in the flow path;总压采集部(140),所述总压采集部(140)包括设置在所述主体部(110,410)的朝向所述流体的流动方向的第一部位上的总压取压孔(141);和a total pressure collecting portion (140), the total pressure collecting portion (140) includes a total pressing pressure hole (141) disposed at a first portion of the main body portion (110, 410) toward a flow direction of the fluid; with静压采集部(150),所述静压采集部(150)包括设置在所述主体部(110,410)的平行于所述流体的流动方向的第二部位上的静压取压孔(151);以及a static pressure collecting portion (150), the static pressure collecting portion (150) including a static pressure tapping hole (151) provided at a second portion of the main body portion (110, 410) parallel to a flow direction of the fluid ;as well as第一压力测量部(180),所述第一压力测量部(180)分别与所述总压取压孔(141)和所述静压取压孔(151)相连以测量流体压力状态。The first pressure measuring portion (180) is connected to the total pressure pressing hole (141) and the static pressure pressing hole (151), respectively, to measure a fluid pressure state.
- 根据权利要求30所述的流体状态测试装置,其特征在于,所述主体部(110,410)包括朝向所述流体的流动方向的迎流面(111)以及与所述流体的流动方向平行的第一侧面(112)和第二侧面(113),所述第一部 位位于所述迎流面(111)上,所述第二部位位于所述第一侧面(112)和所述第二侧面(113)中的至少一者上。The fluid state testing device according to claim 30, wherein said body portion (110, 410) includes an upstream surface (111) toward a flow direction of said fluid and a first parallel to a flow direction of said fluid Side (112) and second side (113), the first portion The location is on the upstream surface (111) and the second location is on at least one of the first side (112) and the second side (113).
- 根据权利要求30所述的流体状态测试装置,其特征在于,所述主体部(110,410)沿与所述流体的流动方向平行的方向上的尺寸大于所述主体部(110,410)沿与所述流体的流动方向垂直的方向上的尺寸。A fluid state testing device according to claim 30, wherein said body portion (110, 410) has a larger dimension in a direction parallel to a flow direction of said fluid than said body portion (110, 410) along said fluid The size of the flow direction in the vertical direction.
- 根据权利要求32所述的流体状态测试装置,其特征在于,所述主体部(110,410)的垂直于所述流体的流动方向的截面为矩形,并且所述主体部(110,410)的宽厚比大于4。The fluid state testing device according to claim 32, wherein a cross section of the main body portion (110, 410) perpendicular to a flow direction of the fluid is a rectangle, and a width to thickness ratio of the main body portion (110, 410) is greater than 4 .
- 根据权利要求30所述的流体状态测试装置,其特征在于,所述连接部(120,130,420,430)位于所述主体部(110,410)的端部,并且在所述连接部(120,130,420,430)与所述主体部(110,410)之间具有扭转部(160,170),以使所述连接部(120,130,420,430)相对于所述主体部(110,410)扭转一定角度。The fluid state testing device according to claim 30, wherein said connecting portion (120, 130, 420, 430) is located at an end of said body portion (110, 410), and said connecting portion (120, 130, 420, 430) and said body portion ( There are twisting portions (160, 170) between 110, 410) to twist the connecting portion (120, 130, 420, 430) with respect to the main body portion (110, 410) by a certain angle.
- 根据权利要求30所述的流体状态测试装置,其特征在于,所述总压取压孔(141)的轴线方向与所述流体的流动方向平行。The fluid state testing apparatus according to claim 30, wherein an axial direction of said total pressure pressing hole (141) is parallel to a flow direction of said fluid.
- 根据权利要求35所述的流体状态测试装置,其特征在于,所述总压取压孔(141)的轴线方向与所述静压取压孔(151)的轴线方向垂直相交。The fluid state testing apparatus according to claim 35, wherein an axial direction of said total pressure pressing hole (141) intersects perpendicularly to an axial direction of said static pressure pressing hole (151).
- 根据权利要求30所述的流体状态测试装置,其特征在于,所述总压采集部(140)还包括总压输出接口(143)和总压传递通道(142),所述总压输出接口(143)设置在所述主体部(110,410)和所述连接部(120,130,420,430)中的一者上;所述总压传递通道(142)设置在所述主体部(110,410)和/或所述连接部(120,130,420,430)内以连通所述总压取压孔(141)和所述总压输出接口(143)。The fluid state testing device according to claim 30, wherein said total pressure collecting portion (140) further comprises a total pressure output interface (143) and a total pressure transmitting passage (142), said total pressure output interface ( 143) disposed on one of the main body portion (110, 410) and the connecting portion (120, 130, 420, 430); the total pressure transmitting passage (142) is disposed at the main body portion (110, 410) and/or the connecting portion (120, 130, 420, 430) is connected to the total pressure take-up hole (141) and the total pressure output port (143).
- 根据权利要求30所述的流体状态测试装置,其特征在于,所述静压采集部(150)还包括静压输出接口(153)和静压传递通道(152),所述静压输出接口(153)设置在所述主体部(110,410)和所述连接部(120,130,420,430)中的一者上;所述静压传递通道(152)设置在所述主体部(110,410)和/或所述连接部(120,130,420,430)内以连通所述静压取 压孔(151)和所述静压输出接口(153)。The fluid state testing device according to claim 30, wherein said static pressure collecting portion (150) further comprises a static pressure output interface (153) and a static pressure transmitting passage (152), said static pressure output interface ( 153) disposed on one of the main body portion (110, 410) and the connecting portion (120, 130, 420, 430); the static pressure transmission passage (152) is disposed at the main body portion (110, 410) and/or the connecting portion (120, 130, 420, 430) to connect the static pressure A pressure hole (151) and the static pressure output interface (153).
- 根据权利要求38所述的流体状态测试装置,其特征在于,A fluid state testing device according to claim 38, wherein所述第一压力测量部(180)包括第一压力传感器和第二压力传感器,所述第一压力传感器与所述总压输出接口(143)相连,所述第二压力传感器与所述静压输出接口(153)相连。The first pressure measuring portion (180) includes a first pressure sensor and a second pressure sensor, the first pressure sensor is connected to the total pressure output interface (143), the second pressure sensor and the static pressure The output interface (153) is connected.
- 根据权利要求38所述的流体状态测试装置,其特征在于,所述第一压力测量部(180)包括压力传递通道和压差传感器,所述压差传感器通过所述压力传递通道分别与所述总压输出接口(143)和所述静压输出接口(153)连通。A fluid state testing device according to claim 38, wherein said first pressure measuring portion (180) comprises a pressure transmitting passage and a differential pressure sensor, said differential pressure sensor being respectively said and said said through said pressure transmitting passage The total pressure output interface (143) is in communication with the static pressure output interface (153).
- 根据权利要求30所述的流体状态测试装置,其特征在于,还包括:The fluid state testing device according to claim 30, further comprising:流速运算部,所述流速运算部根据所述第一压力测量部(180)获得的所述总压取压孔(141)处的流体动压计算位于所述电连接件(100,400)上游的流体的流速。a flow rate calculation unit that calculates a fluid located upstream of the electrical connector (100, 400) based on a fluid dynamic pressure at the total pressure take-up hole (141) obtained by the first pressure measuring unit (180) The flow rate.
- 根据权利要求30所述的流体状态测试装置,其特征在于,所述电连接件(100,400)还包括:The fluid state testing device of claim 30, wherein the electrical connector (100, 400) further comprises:背压采集部(210),所述背压采集部(210)包括设置在所述主体部(110,410)的背向所述流体的流动方向的第三部位上的背压取压孔(211)。a back pressure collecting portion (210), the back pressure collecting portion (210) includes a back pressure tapping hole (211) provided at a third portion of the main body portion (110, 410) facing away from a flow direction of the fluid .
- 根据权利要求42所述的流体状态测试装置,其特征在于,所述背压采集部(210)还包括背压输出接口(213)和背压传递通道(212),所述背压输出接口(213)设置在所述主体部(110,410)和所述连接部(120,130,420,430)中的一者上;所述背压传递通道(152)设置在所述主体部(110,410)和/或所述连接部(120,130,420,430)内以连通所述背压取压孔(211)和所述背压输出接口(213)。The fluid state testing device according to claim 42, wherein said back pressure collecting portion (210) further comprises a back pressure output interface (213) and a back pressure transmitting channel (212), said back pressure output interface ( 213) disposed on one of the main body portion (110, 410) and the connecting portion (120, 130, 420, 430); the back pressure transmission passage (152) is disposed at the main body portion (110, 410) and/or the connecting portion (120, 130, 420, 430) is connected to the back pressure take-up hole (211) and the back pressure output interface (213).
- 根据权利要求42所述的流体状态测试装置,其特征在于,还包括:The fluid state testing device according to claim 42, further comprising:第二压力测量部(230),所述第二压力测量部(230)分别与所述总压取压孔(141)和所述背压取压孔(211)相连以测量流体压力状态。The second pressure measuring portion (230) is connected to the total pressure pressing hole (141) and the back pressure pressing hole (211), respectively, to measure a fluid pressure state.
- 根据权利要求31所述的流体状态测试装置,其特征在于,还包括:第一感温元件(181)和第二感温元件(182),所述第一感温元件(181)和所述第二感温元件(182)分别以电气绝缘方式设置在所述第一侧面(112) 和所述第二侧面(113)上彼此相对的位置上。The fluid state testing device according to claim 31, further comprising: a first temperature sensing element (181) and a second temperature sensing element (182), said first temperature sensing element (181) and said The second temperature sensing element (182) is respectively disposed on the first side (112) in an electrically insulating manner And the second side (113) is opposite to each other.
- 根据权利要求45所述的流体状态测试装置,其特征在于,还包括:The fluid state testing device according to claim 45, further comprising:频率运算部(190),所述频率运算部(190)根据所述第一感温元件(181)和所述第二感温元件(182)的测量值的交替变化计算所述流体沿与该流体的流动方向垂直的方向作用在所述电连接件(100,400)上的交变力的频率。a frequency operation unit (190), wherein the frequency operation unit (190) calculates the fluid along the alternating change according to the measured values of the first temperature sensing element (181) and the second temperature sensing element (182) The frequency of the alternating force acting on the electrical connectors (100, 400) in the direction perpendicular to the direction of flow of the fluid.
- 根据权利要求46所述的流体状态测试装置,其特征在于,所述频率运算部(190)为示波器。The fluid state testing device according to claim 46, wherein said frequency computing unit (190) is an oscilloscope.
- 根据权利要求46所述的流体状态测试装置,其特征在于,所述频率运算部(190)包括第一电桥电阻(191)、第二电桥电阻(192)、直流电源和运算电路,所述第一感温元件(181)、所述第一电桥电阻(191)、所述第二电桥电阻(192)和所述第二感温元件(182)依次电气连接成回路,所述第一感温元件(181)和所述第二感温元件(182)之间的节点以及所述第一电桥电阻(191)和所述第二电桥电阻(192)之间的节点分别连接至直流电源的两极,所述运算电路根据所述第一感温元件(181)和所述第一电桥电阻(191)之间的节点以及所述第二感温元件(182)和所述第二电桥电阻(192)之间的节点之间的输出电压的交替变化计算所述交变力的频率。The fluid state testing device according to claim 46, wherein said frequency calculating unit (190) comprises a first bridge resistor (191), a second bridge resistor (192), a DC power source, and an arithmetic circuit. The first temperature sensing element (181), the first bridge resistor (191), the second bridge resistor (192), and the second temperature sensing element (182) are sequentially electrically connected in a loop, a node between the first temperature sensing element (181) and the second temperature sensing element (182) and a node between the first bridge resistor (191) and the second bridge resistor (192) respectively Connected to two poles of a DC power supply, the arithmetic circuit is based on a node between the first temperature sensing element (181) and the first bridge resistor (191) and the second temperature sensing element (182) and The alternating frequency of the output voltage between the nodes between the second bridge resistors (192) calculates the frequency of the alternating force.
- 根据权利要求48所述的流体状态测试装置,其特征在于,所述运算电路包括依次连接的放大器(195)、滤波器(196)和触发器(197),所述输出电压输出至所述放大器(195),所述触发器(197)输出表征所述交变力的频率的脉冲信号;所述运算电路还包括与所述触发器(197)的输出端相连的变换器(198),以使所述变换器(198)输出表征所述交变力的频率的模拟信号。A fluid state testing device according to claim 48, wherein said arithmetic circuit comprises an amplifier (195), a filter (196) and a flip flop (197) connected in series, said output voltage being output to said amplifier (195) the flip-flop (197) outputs a pulse signal characterizing a frequency of the alternating force; the arithmetic circuit further includes a converter (198) coupled to an output of the flip-flop (197) to The converter (198) is caused to output an analog signal characterizing the frequency of the alternating force.
- 一种流体换热系统,其特征在于,包括:A fluid heat exchange system, comprising:供流体流过的流道(300);a flow path through which the fluid flows (300);固定在所述流道内的带电元件,所述带电元件为电热元件,所述电热元件包括发热本体和位于所述发热本体端部的电极(204);以及a charging element fixed in the flow channel, the charging element being an electric heating element, the electric heating element comprising a heat generating body and an electrode (204) at an end of the heat generating body;如权利要求32-52中任一项所述的流体状态测试装置,所述电连接件(100,400)与所述电热元件的电极(204)相连。 A fluid state testing device according to any one of claims 32-52, wherein the electrical connector (100, 400) is connected to an electrode (204) of the electric heating element.
- 根据权利要求50所述的流体换热系统,其特征在于,所述电热元件为电热管(200)。 A fluid heat exchange system according to claim 50, wherein said electric heating element is an electric heating tube (200).
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES17870640T ES2881978T3 (en) | 2016-12-30 | 2017-07-07 | Electrical connector, fluid condition testing device and fluid heat exchange system |
AU2017366667A AU2017366667B2 (en) | 2016-12-30 | 2017-07-07 | Electrical connector, fluid state test device and fluid heat exchange system |
US15/777,083 US10641786B2 (en) | 2016-12-30 | 2017-07-07 | Fluid test device with electrical connector having electric heating tube for heat exchange process |
EP17870640.4A EP3564641B1 (en) | 2016-12-30 | 2017-07-07 | Electrical connector, fluid state test device, and fluid heat exchange system |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611270743.6 | 2016-12-30 | ||
CN201611270743 | 2016-12-30 | ||
CN201710042287.8 | 2017-01-20 | ||
CN201710042287.8A CN108267260B (en) | 2016-12-30 | 2017-01-20 | Electric connector, fluid state testing device and fluid heat exchange system |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018120747A1 true WO2018120747A1 (en) | 2018-07-05 |
Family
ID=62707853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2017/092162 WO2018120747A1 (en) | 2016-12-30 | 2017-07-07 | Electrical connector, fluid state test device, and fluid heat exchange system |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2018120747A1 (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005164270A (en) * | 2003-11-28 | 2005-06-23 | Denso Corp | Pressure sensor |
CN1696617A (en) * | 2005-06-06 | 2005-11-16 | 熊辉 | Even speed tube of flow sensor |
CN2901765Y (en) * | 2006-04-27 | 2007-05-16 | 付成山 | Carbon fiber electric heater |
CN101886843A (en) * | 2009-05-13 | 2010-11-17 | 梁信辉 | Method and device for heating flowing fluid as well as heating equipment applying same |
CN102959340A (en) * | 2010-01-11 | 2013-03-06 | 约翰·维德尔罗伊特尔 | Device for heating a fluid |
CN103148978A (en) * | 2013-02-04 | 2013-06-12 | 扬州大学 | Even pressure sleeve for measurement of static pressure of pipeline fracture surface |
CN103226051A (en) * | 2013-04-06 | 2013-07-31 | 国家电网公司 | Pressure transmitting element for large-diameter negative pressure steam pipeline |
CN205691278U (en) * | 2016-06-13 | 2016-11-16 | 内蒙古机电职业技术学院 | Removable multifunctional pressure-measuring pipe |
-
2017
- 2017-07-07 WO PCT/CN2017/092162 patent/WO2018120747A1/en unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005164270A (en) * | 2003-11-28 | 2005-06-23 | Denso Corp | Pressure sensor |
CN1696617A (en) * | 2005-06-06 | 2005-11-16 | 熊辉 | Even speed tube of flow sensor |
CN2901765Y (en) * | 2006-04-27 | 2007-05-16 | 付成山 | Carbon fiber electric heater |
CN101886843A (en) * | 2009-05-13 | 2010-11-17 | 梁信辉 | Method and device for heating flowing fluid as well as heating equipment applying same |
CN102959340A (en) * | 2010-01-11 | 2013-03-06 | 约翰·维德尔罗伊特尔 | Device for heating a fluid |
CN103148978A (en) * | 2013-02-04 | 2013-06-12 | 扬州大学 | Even pressure sleeve for measurement of static pressure of pipeline fracture surface |
CN103226051A (en) * | 2013-04-06 | 2013-07-31 | 国家电网公司 | Pressure transmitting element for large-diameter negative pressure steam pipeline |
CN205691278U (en) * | 2016-06-13 | 2016-11-16 | 内蒙古机电职业技术学院 | Removable multifunctional pressure-measuring pipe |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20110247411A1 (en) | Molded flow restrictor | |
US9046397B2 (en) | Method for registering flow and a thermal, flow measuring device | |
US11421916B2 (en) | Electrical connector, fluid state test device and fluid heat exchange system | |
US10641786B2 (en) | Fluid test device with electrical connector having electric heating tube for heat exchange process | |
JPH08166268A (en) | Thermal type flowmeter | |
US8583385B2 (en) | Thermal, flow measuring device | |
WO2018120747A1 (en) | Electrical connector, fluid state test device, and fluid heat exchange system | |
WO2018120733A1 (en) | Electrical connector, fluid state test device, and fluid heat exchange system | |
JP6250580B2 (en) | Electromagnetic flow meter and collective unit | |
CN105158503B (en) | Hot-wire array sensor | |
CN105987728B (en) | Electromagnetic flowmeter | |
CN207675248U (en) | Multistage shrinks combined rectifier | |
TW202043709A (en) | Full bore magnetic flowmeter assembly with temperature sensing element | |
RU2753155C1 (en) | Thermal fluid meter | |
CN116165244A (en) | Device and method for measuring heat conductivity coefficient of high-temperature high-pressure liquid | |
CN106940085B (en) | A kind of fire-suppressant gas Quick uniform heating device | |
JP2010223783A (en) | Fluid measuring instrument and fluid straightening instrument | |
CN205484515U (en) | High accuracy quick response hands over DC leakage current sensor | |
CN205580616U (en) | Armoured thermocouple cable of reducing | |
JP6234743B2 (en) | Thermal flow sensor | |
JPS58214814A (en) | Thermo-sensible flow detector | |
JPS6361918A (en) | Insertion type thermal flow meter | |
JPS592498Y2 (en) | hot wire flowmeter | |
JP4980510B2 (en) | Flow sensor and combined flow meter | |
CN114754834A (en) | Constant-power thermal liquid mass flowmeter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2017366667 Country of ref document: AU Date of ref document: 20170707 Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17870640 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2017870640 Country of ref document: EP Effective date: 20190730 |