A spiral jet throttling device with temperature self-compensation and capable of eliminating step-down eddy current

Abstract

A spiral jet throttling device with temperature self-compensation and capable of eliminating step-down eddy current, comprising an air inlet pipe, a throttle plate and an air outlet pipe. The air inlet pipe and the air outlet pipe are separated by the throttle plate. A diversion pipe is arranged outside the air inlet pipe and the air outlet pipe. The diversion pipe is composed of multiple parallel pipes uniformly arranged along the outer walls of the air inlet pipe and the air outlet pipe, and the diversion pipe connects the air inlet pipe and the air outlet pipe. The beneficial effects of the present invention are as follows: The device has a simple structure. Through the special structure setting of the device, high-pressure gas and fluid can be stepped down by the throttle plate, and at the same time, gas supplementation by the diversion pipe is coordinated to eliminate the gas eddy current phenomenon in the pipeline caused by gas step-down. At the same time, the temperature of the gas can be increased by using the friction between gases. In this way, not only can problems such as pipeline vibration caused by gas eddy current be prevented, but also temperature compensation can be carried out to prevent the problem that the gas is difficult to use after step-down.

Description

Technical Field

[0001] The present invention relates to the technical field of high-pressure conveying equipment, and particularly to a throttling device with a temperature self-compensation function. Background Art

[0002] With the development of cities, the number of urban residents has increased significantly. To improve the living quality of residents, the urban underground pipe network has developed rapidly, including not only the conveying pipe networks for water, electricity, gas and other living materials necessary for people's lives, but also various types of wired signal transmission pipe networks distributed underground in the city.

[0003] Among them, pipeline natural gas has become one of the main energy sources for urban residents due to its convenience and safety in use. The urban natural gas is transported through a large pipeline network. Therefore, the pipeline network consists of a main pipeline, branch pipelines, and household terminals to form a huge urban natural gas pipeline network. The internal pressure and flow rate of the natural gas main pipeline are large, providing the main passage for natural gas transportation. The branch pipelines are responsible for transporting the natural gas from the main pipeline to communities or concentrated residential areas, and then after pressure reduction and temperature increase, it is transported to the user terminals of residents.

[0004] To ensure the safe use of natural gas user terminals, at the position where the natural gas main pipeline or branch pipeline enters the community or concentrated residential area, a throttling device needs to be installed on the natural gas pipeline to reduce the pressure and flow rate of natural gas, thereby protecting the safe use of user terminals.

[0005] The device for throttling usually uses a throttling plate with a conical barrel structure inside the pipeline to reduce pressure. However, after throttling, due to the strong compression of natural gas at the throttling plate, eddy current phenomena will occur in the subsequent pipeline, and at the same time, the gas temperature of natural gas will suddenly decrease. Such gas eddy currents will cause problems such as poor air flow and pipeline vibration, and problems such as failure to ignite smoothly will also occur in the subsequent use of natural gas due to the temperature decrease. Summary of the Invention

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a spiral jet throttling device with temperature self-compensation and capable of eliminating pressure reduction eddy currents.

[0007] The present invention is realized through the following technical solutions: A spiral jet throttling device with temperature self-compensation and capable of eliminating pressure reduction eddy currents, including an intake pipe, a throttling plate, and an outlet pipe. The intake pipe and the outlet pipe are pipes with the same inner and outer diameters and are of an integral structure. The intake pipe and the outlet pipe are separated by the throttling plate. The throttling plate is of a circular ring structure, and the center of the throttling plate is a throttling hole. A diversion pipe is arranged outside the intake pipe and the outlet pipe. The diversion pipe is a plurality of parallel pipes uniformly arranged along the outer walls of the intake pipe and the outlet pipe, and the diversion pipe connects the intake pipe and the outlet pipe.

[0008] Preferably, the diameter of the throttle plate is larger than the outer diameters of the intake pipe and the outlet pipe. The structural plate is clamped between the intake pipe and the outlet pipe and fixed by welding.

[0009] Preferably, the throttle hole has a flared structure from the intake pipe to the outlet pipe using the thickness of the throttle plate.

[0010] Preferably, the connection position of the diversion pipe and the outlet pipe is arranged close to the throttle plate.

[0011] Preferably, a guiding port is arranged inside the diversion pipe corresponding to the position of the outlet pipe, and the guiding port is arranged inside the outlet pipe in a clockwise structure.

[0012] Furthermore, the guiding port forms an angle of 45° with the inner wall of the outlet pipe.

[0013] Preferably, independent pressure gauges are respectively arranged on the intake pipe and the outlet pipe.

[0014] Preferably, independent dial thermometers are respectively arranged on the intake pipe and the outlet pipe.

[0015] Preferably, a heating chamber is arranged outside the diversion pipe. The heating chamber has a cylindrical structure and wraps around the diversion pipe.

[0016] Furthermore, an independent heating groove is arranged on the heating chamber corresponding to the diversion pipe, and the heating groove independently wraps around the diversion pipe.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The gas in this device flows from left to right in the direction of the arrow. After passing through the throttle orifice plate, the pressure P1 of the intake pipe in the pipeline is greater than the pressure P2 of the outlet pipe. However, during the pressure reduction process, due to the throttling of the fluid, the temperature T2 is less than T1, and at the same time, an eddy current area appears on the back of the orifice plate.

[0019] 2. In order to eliminate the influence of the eddy current and temperature drop on the system, several diversion pipes are led out from the front end of the throttle plate to the eddy current area at the rear of the throttle orifice plate. By introducing the fluid, the eddy current is eliminated. The fluid flowing in along the diversion pipe moves spirally in the pipeline. At the same time, due to the inconsistent pressure between the outlet pressure of the introduction pipe and the fluid pressure behind the throttle orifice plate, the fluid passing through the orifice plate and the fluid passing through the diversion pipe are mixed and rubbed to generate a certain amount of heat to compensate for the energy loss caused by the fluid pressure drop.

[0020] 3. The device has a simple structure and can effectively solve the hazards caused by temperature compensation and eddy current.

[0021] The device has a simple structure. Through the special structural settings of the device, it can reduce the pressure of high-pressure gas and fluid through the throttle plate, and at the same time, with the gas supplement of the diversion pipe, it can eliminate the gas eddy current phenomenon in the pipeline caused by gas pressure reduction, and can also use the friction between gases to increase the gas temperature. In this way, it can not only prevent problems such as pipeline vibration caused by gas eddy current, but also perform temperature compensation to prevent the problem that the gas is difficult to use after pressure reduction. Brief Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall device structure of a spiral jet throttling device with temperature self-compensation and capable of eliminating pressure reduction eddy current.

[0023] Figure 2 It is a schematic diagram of the overall device structure of a spiral jet throttling device with temperature self-compensation and capable of eliminating pressure reduction eddy current in cooperation with a heating chamber.

[0024] Figure 3 It is a schematic diagram of the sectional structure of a spiral jet throttling device with temperature self-compensation and capable of eliminating pressure reduction eddy current.

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of a spiral jet throttling device with temperature self-compensation and capable of eliminating pressure reduction eddy current.

[0026] Figure 5 It is a schematic diagram of the heating chamber structure of a spiral jet throttling device with temperature self-compensation and capable of eliminating pressure reduction eddy current.

[0027] Wherein: 1, inlet pipe; 2, outlet pipe; 3, throttle plate; 31, throttle hole; 4, diversion pipe; 5, guiding port; 6, heating chamber; 61, heating groove. Detailed Embodiment

[0028] In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1

[0031] A spiral jet throttling device with temperature self - compensation and capable of eliminating step - down eddy current, comprising an intake pipe 1, a throttle plate 3 and an outlet pipe 2. The intake pipe 1 and the outlet pipe 2 are pipes with the same inner and outer diameters and of an integral structure. The intake pipe 1 and the outlet pipe 2 are the normal passageways for the fluid inside the device. The intake pipe 1 and the outlet pipe 2 are separated by the throttle plate 3. The throttle plate 3 is of a circular ring structure, and the center of the throttle plate 3 is a throttle hole 31. The high - pressure gas inside the device passes through the throttle hole 31 of the throttle plate 3 from the intake pipe 1 to complete step - down throttling. A guide pipe 4 is arranged outside the intake pipe 1 and the outlet pipe 2. The guide pipe 4 is a plurality of parallel pipes uniformly arranged along the outer walls of the intake pipe 1 and the outlet pipe 2. The guide pipe 4 connects the intake pipe 1 and the outlet pipe 2. Through the gas supplement of the guide pipe 4, the eddy current phenomenon behind the throttle plate 3 caused by the throttle plate 3 can be effectively attenuated. At the same time, the gas entering the outlet pipe 2 through the guide pipe 4 and the gas ejected through the throttle hole 31 rub against each other, playing a certain role in temperature compensation.

[0032] The throttle hole 31 is of a flared structure from the intake pipe 1 to the outlet pipe 2 using the thickness of the throttle plate 3. The structure of the throttle hole 31 can prevent the gas that has completed step - down from continuing to be transported in a concentrated form, and minimize the generated eddy current phenomenon.

[0033] The connection position of the guide pipe 4 and the outlet pipe 2 is set close to the throttle plate 3, which can improve the elimination of the eddy current phenomenon by the gas supplemented by the guide pipe 4.

[0034] Independent pressure gauges are respectively arranged on the intake pipe 1 and the outlet pipe 2 for monitoring the gas pressure inside the device.

[0035] Independent instrument - type thermometers are respectively arranged on the intake pipe 1 and the outlet pipe 2 for monitoring the gas temperature inside the device.

[0036] Working principle

[0037] When the device is working normally, gas enters the device from the intake pipe 1, undergoes step - down throttling treatment through the throttle hole 31 of the throttle plate 3, and enters the outlet pipe 2. At the same time, the guide pipe 4 guides part of the gas from the intake pipe 1 to the rear side position of the throttle plate 3 inside the outlet pipe 2. Through the gas supplement of the guide pipe 4, the eddy current phenomenon behind the throttle plate 3 caused by the throttle plate 3 can be effectively attenuated. At the same time, the gas entering the outlet pipe 2 through the guide pipe 4 and the gas ejected through the throttle hole 31 rub against each other, playing a certain role in temperature compensation.

[0038] Embodiment 2

[0039] A spiral jet throttling device with temperature self-compensation and capable of eliminating step-down eddy current, comprising an intake pipe 1, a throttle plate 3 and an outlet pipe 2. The intake pipe 1 and the outlet pipe 2 are pipes with the same inner and outer diameters and are of an integral structure. The intake pipe 1 and the outlet pipe 2 are the normal passageways for the fluid inside the device. The intake pipe 1 and the outlet pipe 2 are separated by the throttle plate 3. The throttle plate 3 is of an annular structure, and the center of the throttle plate 3 is a throttle hole 31. The high-pressure gas inside the device passes through the throttle hole 31 of the throttle plate 3 from the intake pipe 1 to complete step-down throttling. A guide pipe 4 is arranged outside the intake pipe 1 and the outlet pipe 2. The guide pipe 4 is a plurality of parallel pipes uniformly arranged along the outer walls of the intake pipe 1 and the outlet pipe 2. The guide pipe 4 connects the intake pipe 1 and the outlet pipe 2. Through the gas supplement of the guide pipe 4, the eddy current phenomenon at the rear side of the throttle plate 3 caused by the throttle plate 3 can be effectively attenuated. At the same time, the gas entering the outlet pipe 2 through the guide pipe 4 and the gas ejected through the throttle hole 31 rub against each other, playing a certain role in temperature compensation.

[0040] The diameter of the throttle plate 3 is larger than the outer diameters of the intake pipe 1 and the outlet pipe 2. The structural plate is sandwiched between the intake pipe 1 and the outlet pipe 2 and is fixed by welding, which can ensure the stable fixation of the throttle plate 3 and prevent the throttle plate 3 from falling off due to high pressure, causing device failure.

[0041] The throttle hole 31 is of a flared structure from the intake pipe 1 to the outlet pipe 2 using the thickness of the throttle plate 3. The structure of the throttle hole 31 can prevent the gas that has completed step-down from continuing to be transported in a concentrated form, and minimize the generated eddy current phenomenon.

[0042] The connection position of the guide pipe 4 and the outlet pipe 2 is set close to the throttle plate 3, which can improve the elimination of the eddy current phenomenon by the gas supplemented by the guide pipe 4.

[0043] Independent pressure gauges are respectively arranged on the intake pipe 1 and the outlet pipe 2 for monitoring the gas pressure inside the device.

[0044] Independent instrument thermometers are respectively arranged on the intake pipe 1 and the outlet pipe 2 for monitoring the gas temperature inside the device.

[0045] Working principle

[0046] When the device is working normally, gas enters the device from the intake pipe 1, undergoes step-down throttling treatment through the throttle hole 31 of the throttle plate 3, and enters the outlet pipe 2. At the same time, the guide pipe 4 guides part of the gas from the intake pipe 1 to the rear side position of the throttle plate 3 inside the outlet pipe 2. Through the gas supplement of the guide pipe 4, the eddy current phenomenon at the rear side of the throttle plate 3 caused by the throttle plate 3 can be effectively attenuated. At the same time, the gas entering the outlet pipe 2 through the guide pipe 4 and the gas ejected through the throttle hole 31 rub against each other, playing a certain role in temperature compensation.

[0047] Example three

[0048] A spiral jet throttling device with temperature self-compensation and capable of eliminating step-down eddy current, comprising an intake pipe 1, a throttle plate 3 and an outlet pipe 2. The intake pipe 1 and the outlet pipe 2 are pipes with the same inner and outer diameters and are of an integral structure. The intake pipe 1 and the outlet pipe 2 are the normal passages for the fluid inside the device. The intake pipe 1 and the outlet pipe 2 are separated by the throttle plate 3. The throttle plate 3 is of a circular ring structure, and the center of the throttle plate 3 is a throttle hole 31. The high-pressure gas inside the device passes through the throttle hole 31 of the throttle plate 3 from the intake pipe 1 to complete step-down throttling. A guide pipe 4 is arranged outside the intake pipe 1 and the outlet pipe 2. The guide pipe 4 is a plurality of parallel pipes uniformly arranged along the outer walls of the intake pipe 1 and the outlet pipe 2. The guide pipe 4 connects the intake pipe 1 and the outlet pipe 2. Through the gas supplement of the guide pipe 4, the eddy current phenomenon behind the throttle plate 3 caused by the throttle plate 3 can be effectively attenuated. At the same time, the gas entering the outlet pipe 2 through the guide pipe 4 and the gas ejected through the throttle hole 31 rub against each other, playing a certain temperature compensation role.

[0049] The diameter of the throttle plate 3 is larger than the outer diameters of the intake pipe 1 and the outlet pipe 2. The structural plate is sandwiched between the intake pipe 1 and the outlet pipe 2 and fixed by welding, which can ensure the stable fixation of the throttle plate 3 and prevent the throttle plate 3 from falling off due to high pressure, resulting in device failure.

[0050] The throttle hole 31 is of a flared structure from the intake pipe 1 to the outlet pipe 2 using the thickness of the throttle plate 3. The structure of the throttle hole 31 can prevent the gas that has completed step-down from continuing to be transported in a concentrated form, and minimize the generated eddy current phenomenon.

[0051] The connection position of the guide pipe 4 and the outlet pipe 2 is set close to the throttle plate 3, which can improve the elimination of the eddy current phenomenon by the gas supplemented by the guide pipe 4.

[0052] A guide port 5 is arranged inside the guide pipe 4 corresponding to the position of the outlet pipe 2. The guide port 5 is arranged inside the outlet pipe 2 in a clockwise structure; the guide port 5 forms an angle of 45° with the inner wall of the outlet pipe 2, so that the gas entering the outlet pipe 2 of the device through the guide pipe 4 rotates clockwise, improving the attenuation effect of the supplemented gas on the eddy current phenomenon. At the same time, it can also increase the friction between the supplemented gas and the main gas, improving the temperature compensation effect of the device.

[0053] Independent pressure gauges are respectively arranged on the intake pipe 1 and the outlet pipe 2 for monitoring the gas pressure inside the device.

[0054] Independent instrument thermometers are respectively arranged on the intake pipe 1 and the outlet pipe 2 for monitoring the gas temperature inside the device.

[0055] Working principle

[0056] When the device is working properly, gas enters the device from the intake pipe 1, undergoes pressure reduction and throttling treatment through the throttle orifice 31 of the throttle plate 3, and enters the outlet pipe 2; at the same time, the guide pipe 4 diverts part of the gas from the intake pipe 1 to the rear side position of the throttle plate 3 in the outlet pipe 2; through the gas supplement of the guide pipe 4, the eddy current phenomenon at the rear side of the throttle plate 3 caused by the throttle plate 3 can be effectively attenuated. At the same time, the gas entering the outlet pipe 2 through the guide pipe 4 and the gas ejected through the throttle orifice 31 rub against each other, playing a certain temperature compensation role; a guide port 5 is arranged inside the guide pipe 4 corresponding to the position of the outlet pipe 2, and the guide port 5 is arranged in a clockwise structure inside the outlet pipe 2; the guide port 5 forms an angle of 45° with the inner wall of the outlet pipe 2, enabling the gas entering the outlet pipe 2 of the device through the guide pipe 4 to rotate clockwise, improving the attenuation effect of the supplementary gas on the eddy current phenomenon, and at the same time increasing the friction between the supplementary gas and the main gas, improving the temperature compensation effect of the device.

[0057] Embodiment Four

[0058] A spiral jet throttling device with temperature self-compensation and capable of eliminating pressure reduction eddy current includes an intake pipe 1, a throttle plate 3, and an outlet pipe 2. The intake pipe 1 and the outlet pipe 2 are pipes with the same inner and outer diameters and are of an integral structure. The intake pipe 1 and the outlet pipe 2 are the normal passageways for the fluid inside the device; the intake pipe 1 and the outlet pipe 2 are separated by the throttle plate 3. The throttle plate 3 is of an annular structure, and the center of the throttle plate 3 is the throttle orifice 31. The high-pressure gas inside the device passes through the throttle orifice 31 of the throttle plate 3 from the intake pipe 1 to complete pressure reduction and throttling; a guide pipe 4 is arranged outside the intake pipe 1 and the outlet pipe 2. The guide pipe 4 is a plurality of parallel pipes evenly arranged along the outer walls of the intake pipe 1 and the outlet pipe 2. The guide pipe 4 connects the intake pipe 1 and the outlet pipe 2. Through the gas supplement of the guide pipe 4, the eddy current phenomenon at the rear side of the throttle plate 3 caused by the throttle plate 3 can be effectively attenuated. At the same time, the gas entering the outlet pipe 2 through the guide pipe 4 and the gas ejected through the throttle orifice 31 rub against each other, playing a certain temperature compensation role.

[0059] The diameter of the throttle plate 3 is larger than the outer diameters of the intake pipe 1 and the outlet pipe 2. The structural plate is clamped between the intake pipe 1 and the outlet pipe 2 and fixed by welding, which can ensure the stable fixation of the throttle plate 3 and prevent the throttle plate 3 from falling off due to high pressure, resulting in device failure.

[0060] The throttle orifice 31 is of a flared structure from the intake pipe 1 to the outlet pipe 2 using the thickness of the throttle plate 3. The structure of the throttle orifice 31 can prevent the gas that has completed pressure reduction from continuing to be transported in a concentrated form, and minimize the generated eddy current phenomenon.

[0061] The connection position of the guide pipe 4 and the outlet pipe 2 is arranged close to the throttle plate 3, which can improve the elimination of the eddy current phenomenon by the gas supplemented by the guide pipe 4.

[0062] Inside the position of the diversion pipe 4 corresponding to the air outlet pipe 2, a guiding port 5 is arranged. The guiding port 5 is arranged inside the air outlet pipe 2 in a clockwise structure; the guiding port 5 forms an angle of 45° with the inner wall of the air outlet pipe 2, so that the gas entering the air outlet pipe 2 of the device through the diversion pipe 4 rotates clockwise, improving the attenuation effect of the supplementary gas on the eddy current phenomenon. At the same time, it can also increase the friction between the supplementary gas and the main gas, improving the temperature compensation effect of the device.

[0063] Independent pressure gauges are respectively arranged on the air inlet pipe 1 and the air outlet pipe 2 for monitoring the gas pressure inside the device.

[0064] Independent dial thermometers are respectively arranged on the air inlet pipe 1 and the air outlet pipe 2 for monitoring the gas temperature inside the device.

[0065] A heating chamber 6 is arranged outside the diversion pipe 4. The heating chamber 6 is of a cylindrical structure and wraps around the diversion pipe 4 to heat up the supplementary gas in the diversion pipe 4, improving the temperature compensation effect of the device; an independent heating groove 61 is arranged on the heating chamber 6 corresponding to the diversion pipe 4. The heating groove 61 independently wraps around the diversion pipe 4 and can accurately control the temperature according to the actual temperature. The independent heating groove 61 can work independently, so as to realize rapid heating and slow heating and achieve accurate temperature control.

[0066] Working principle

[0067] When the device is working normally, gas enters the device from the air inlet pipe 1, undergoes pressure reduction and throttling treatment through the throttle holes 31 of the throttle plate 3, and enters the air outlet pipe 2; at the same time, the diversion pipe 4 diverts part of the gas from the air inlet pipe 1 to the rear side position of the throttle plate 3 inside the air outlet pipe 2; through the gas supplement of the diversion pipe 4, the eddy current phenomenon at the rear side of the throttle plate 3 caused by the throttle plate 3 can be effectively attenuated. At the same time, the gas entering the air outlet pipe 2 through the diversion pipe 4 and the gas ejected through the throttle holes 31 rub against each other, playing a certain temperature compensation role; inside the position of the diversion pipe 4 corresponding to the air outlet pipe 2, a guiding port 5 is arranged. The guiding port 5 is arranged inside the air outlet pipe 2 in a clockwise structure; the guiding port 5 forms an angle of 45° with the inner wall of the air outlet pipe 2, so that the gas entering the air outlet pipe 2 of the device through the diversion pipe 4 rotates clockwise, improving the attenuation effect of the supplementary gas on the eddy current phenomenon. At the same time, it can also increase the friction between the supplementary gas and the main gas, improving the temperature compensation effect of the device; cooperating with the heating chamber can ensure accurate temperature control. A heating chamber 6 is arranged outside the diversion pipe 4. The heating chamber 6 is of a cylindrical structure and wraps around the diversion pipe 4 to heat up the supplementary gas in the diversion pipe 4, improving the temperature compensation effect of the device; an independent heating groove 61 is arranged on the heating chamber 6 corresponding to the diversion pipe 4. The heating groove 61 independently wraps around the diversion pipe 4 and can accurately control the temperature according to the actual temperature. The independent heating groove 61 can work independently, so as to realize rapid heating and slow heating and achieve accurate temperature control.

[0068] The above are multiple real-time sending methods of this technical solution, among which Example 4 can achieve the best use effect.

[0069] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spiral jet throttling device with temperature self-compensation and capable of eliminating step-down eddy current, characterized in that: It includes an intake pipe, a throttle plate and an outlet pipe. The intake pipe and the outlet pipe are pipes with the same inner and outer diameters and are of an integral structure. The intake pipe and the outlet pipe are separated by the throttle plate. The throttle plate is of an annular structure, and the center of the throttle plate is a throttle orifice; a guide pipe is arranged outside the intake pipe and the outlet pipe. The guide pipe is composed of multiple parallel pipes evenly arranged along the outer walls of the intake pipe and the outlet pipe, and the guide pipe connects the intake pipe and the outlet pipe; the throttle orifice has a flared structure from the intake pipe to the outlet pipe using the thickness of the throttle plate. A guide opening is arranged inside the guide pipe at the position corresponding to the outlet pipe. The guide opening is arranged inside the outlet pipe in a clockwise structure. The connection position of the guide pipe and the outlet pipe is arranged close to the throttle plate. The guide opening forms an angle of 45° with the inner wall of the outlet pipe. Independent instrument thermometers are respectively arranged on the intake pipe and the outlet pipe. A heating chamber is arranged outside the guide pipe. The heating chamber is of a cylindrical structure and wraps around the guide pipe.

2. The spiral jet throttling device with temperature self-compensation and capable of eliminating step-down eddy current according to claim 1, characterized in that: The diameter of the throttle plate is larger than the outer diameters of the intake pipe and the outlet pipe. The structural plate is sandwiched between the intake pipe and the outlet pipe and is fixed by welding.

3. A spiral jet throttling device with temperature self-compensation and capable of eliminating step-down eddy current according to claim 1, characterized in that: Independent pressure gauges are respectively arranged on the intake pipe and the outlet pipe.

4. A spiral jet throttling device with temperature self-compensation and capable of eliminating step-down eddy current according to claim 1, characterized in that: An independent heating groove is arranged on the heating chamber corresponding to the guide pipe. The heating groove independently wraps around the guide pipe.

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