A pressure regulator device and its application

Abstract

The present invention discloses a pressure regulator device and its application, which includes a main body part, a pressure regulating component and a valve core. The pressure regulating component includes an elastic member and a diaphragm. The elastic member is arranged in the inner cavity, the diaphragm is arranged at the bottom end of the inner cavity, the top end of the elastic member abuts against the top end of the inner cavity, the bottom end of the elastic member abuts against one side of the diaphragm, the diaphragm has elasticity, the valve core is arranged in the receiving cavity, the top end of the valve core abuts against the other side of the diaphragm, a groove is arranged at the top end of the valve core, and the groove is arranged around the circumference of the top end of the valve core. A first inflow pipe and a first outflow pipe are penetrated through the inside of the valve core. The water outlet end of the first inflow pipe is communicated with the groove, and the water inlet end of the first outflow pipe is arranged at the top end of the valve core. This application can be applied to a multiphase fluid system and form a stable multiphase system, ensuring the stability of the system pressure under gas-liquid heterogeneous conditions and solving the problem of unstable pressure when gas and liquid are used simultaneously in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of continuous flow chemical engineering, and particularly relates to a pressure regulator device and its application. Background Art

[0002] The pressure regulating valve in the existing continuous flow chemical reaction process system cannot be applied to multiphase fluid systems, and can only be applied to single-fluid systems of liquid phase or gas phase. This is because in the existing pressure regulator, a single-phase fluid impacts the entire diaphragm through the receiving cavity, forcing the diaphragm to lift upward to form a fluid channel for the outflow of the single-phase fluid. However, when a multiphase fluid enters the receiving cavity, since the multiphase fluid directly flows into the receiving cavity and contacts the entire diaphragm, the travel distance of the multiphase fluid is short, and the multiphase fluid lifts the entire diaphragm to form a fluid channel before reaching phase equilibrium, resulting in the liquid and gas in the multiphase fluid flowing out of the fluid channel in segments, causing instability of the front-end pressure in the continuous flow reaction equipment, and thus making the continuous flow reaction unstable. Summary of the Invention

[0003] Based on this, it is necessary to provide a pressure regulator device that can be applied to multiphase fluid systems and improve pressure stability.

[0004] A pressure regulator device includes:

[0005] A main body part with a connected inner cavity and a receiving cavity inside, and the axis of the inner cavity is perpendicular to the axis of the receiving cavity;

[0006] A pressure regulating component including an elastic member and a diaphragm. The elastic member is arranged in the inner cavity, the diaphragm is arranged at the bottom end of the inner cavity, the top end of the elastic member abuts against the top end of the inner cavity, the bottom end of the elastic member abuts against one side of the diaphragm, and the diaphragm has elasticity; and

[0007] A valve core is arranged in the receiving cavity. The top end of the valve core abuts against the other side of the diaphragm. A groove is arranged at the top end of the valve core and circumferentially surrounds the top end of the valve core. A first inflow pipe and a first outflow pipe are penetrated through the valve core. The water inlet end of the first inflow pipe is used for the entry of fluid, the water outlet end of the first inflow pipe is communicated with the bottom of the groove, the water inlet end of the first outflow pipe is arranged at the top end of the valve core, and the water outlet end of the first outflow pipe is used for the outflow of fluid. The fluid output by the first inflow pipe is used to apply pressure to the diaphragm to move the diaphragm in the direction towards the elastic member, so as to form a fluid channel between the diaphragm and the valve core, and the fluid output by the first inflow pipe enters the first outflow pipe through the fluid channel.

[0008] Optionally, the pressure regulating assembly further includes a first spring seat disposed in the inner cavity. One end of the first spring seat abuts against the top end of the inner cavity, and the other end of the first spring seat abuts against the top end of the elastic member.

[0009] Optionally, the pressure regulating assembly further includes a second spring seat disposed in the inner cavity. One end of the second spring seat abuts against the bottom end of the elastic member, and the other end of the second spring seat abuts against the diaphragm.

[0010] Optionally, a through hole is further formed in the main body portion and is in communication with the inner cavity. The pressure regulator device further includes an adjustment knob disposed in the through hole. The bottom end of the adjustment knob abuts against the end of the first spring seat away from the elastic member.

[0011] Optionally, the pressure regulator device further includes a second inflow pipe, a part of which is disposed in the receiving cavity and is in communication with the first inflow pipe. The second inflow pipe is used for allowing fluid to enter and transporting the fluid to the first inflow pipe.

[0012] Optionally, the pressure regulator device further includes a second outflow pipe, a part of which is disposed in the receiving cavity and is in communication with the first outflow pipe. The second outflow pipe is used for outputting the fluid output by the first outflow pipe.

[0013] Optionally, the pressure regulator device further includes a first connector and a second connector. The first connector is disposed between the second inflow pipe and the first inflow pipe for achieving a sealed connection between the second inflow pipe and the first inflow pipe. The second connector is disposed between the first outflow pipe and the second outflow pipe for achieving a sealed connection between the first outflow pipe and the second outflow pipe.

[0014] Optionally, the first connector includes a first connecting member, a first fastening ring, and a first pressing ring. The first connecting member is sleeved on the end of the second inflow pipe away from the first inflow pipe. The first pressing ring is sleeved on the end of the second inflow pipe close to the first inflow pipe. The first fastening ring is sleeved on the second inflow pipe and is connected to the end of the first pressing ring away from the first inflow pipe.

[0015] Optionally, the second connector includes a second connecting member, a second fastening ring, and a second pressing ring. The second connecting member is sleeved on one end of the second outflow pipe away from the first outflow pipe. The second pressing ring is sleeved on one end of the second outflow pipe close to the first outflow pipe. The second fastening ring is sleeved on the second outflow pipe and is connected to one end of the second pressing ring away from the first outflow pipe.

[0016] Optionally, an application of a pressure regulator device as described in any one of the above in a continuous flow chemical reaction process system.

[0017] Compared with the prior art, in the present application, by providing a groove communicating with the first inflow pipe at the top end of the valve core, the flow path of the fluid can be greatly extended. For multiphase fluids, the extension of the flow path can also provide sufficient time conditions for the multiphase fluids to reach phase equilibrium. When the multiphase fluids flow through the first inflow pipe and the groove, they gradually reach phase equilibrium. After reaching phase equilibrium, pressure is applied to the diaphragm and acts on the elastic member. Through the expansion and contraction of the elastic member, the pressures in the first inflow pipe and the second inflow pipe are adjusted, so that a stable multiphase system can be formed, ensuring the stability of the system pressure under gas-liquid heterogeneous conditions, and solving the problem of unstable pressure when gas phase and liquid phase coexist in the prior art. Therefore, the pressure regulator in the present application can also be applied to multiphase fluid systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0019] Figure 1 It is a schematic structural diagram of a pressure regulator device in an embodiment;

[0020] Figure 2 It is a schematic diagram of the pressure regulation principle of the valve core in the first embodiment of the pressure regulator device;

[0021] Figure 3 It is a top view of the fluid inlet positions and outlet positions in different directions inside the valve core in the first embodiment of the pressure regulator device;

[0022] Figure 4 It is a top view of the valve core in the second embodiment of the pressure regulator device;

[0023] Figure 5 It is a schematic structural diagram of the valve core in the third embodiment of the pressure regulator device;

[0024] Figure 6 It is the top view of the valve core of the third embodiment of the pressure regulator device;

[0025] Figure 7 It is the structural schematic diagram of the first connector of the pressure regulator device in an embodiment;

[0026] Figure 8 It is the structural schematic diagram of the first connector, the valve core and the second connector of the fourth embodiment of the pressure regulator device;

[0027] Figure 9 It is the system pressure stability diagram of the pressure regulator device in an embodiment under different flow rates and different pressures.

[0028] Names and serial numbers of components in the figure: 1. Main body part; 11. Inner cavity; 12. Receiving cavity; 13. Through hole; 2. Pressure regulating component; 21. Elastic part; 22. Diaphragm; 23. First spring seat; 24. Second spring seat; 25. Adjusting knob; 3. Valve core; 31. Groove; 32. First inflow pipe; 33. First outflow pipe; 34. Fluid channel; 4. Second inflow pipe; 5. Second outflow pipe; 6. First connector; 61. First connecting part; 62. First fastening ring; 63. First pressing ring; 7. Second connector; 71. Second connecting part; 72. Second fastening ring; 73. Second pressing ring.

[0029] The realization of the purpose, the functional characteristics and the advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, the descriptions involving "first", "second", etc. in the present invention are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, "and / or" throughout the text includes three scenarios. Taking A and / or B as an example, it includes the technical solution of A, the technical solution of B, and the technical solution where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] Reference Figures 1 to 3 , a pressure regulator device includes a main body portion 1, a pressure regulating assembly 2, and a valve core 3. An internally connected cavity 11 and a receiving cavity 12 are provided inside the main body portion 1, and the axis of the cavity 11 is perpendicular to the axis of the receiving cavity 12. The pressure regulating assembly 2 includes an elastic member 21 and a diaphragm 22. The elastic member 21 is disposed inside the cavity 11, the diaphragm 22 is disposed at the bottom end of the cavity 11. The top end of the elastic member 21 abuts against the top end of the cavity 11, and the bottom end of the elastic member 21 abuts against one side of the diaphragm 22. The diaphragm 22 is elastic. The valve core 3 is disposed inside the receiving cavity 12, the top end of the valve core 3 abuts against the other side of the diaphragm 22. A groove 31 is provided at the top end of the valve core 3, and the groove 31 is circumferentially arranged around the top end of the valve core 3. A first inflow pipe 32 and a first outflow pipe 33 penetrate through the valve core 3. The water inlet end of the first inflow pipe 32 is for the entry of fluid, the water outlet end of the first inflow pipe 32 communicates with the bottom of the groove 31. The water inlet end of the first outflow pipe 33 is provided at the top end of the valve core 3, and the water outlet end of the first outflow pipe 33 is for the outflow of fluid. The fluid output by the first inflow pipe 32 is used to apply pressure to the diaphragm 22 to move the diaphragm 22 in the direction towards the elastic member 21, so that a fluid passage 34 is formed between the diaphragm 22 and the valve core 3. The fluid output by the first inflow pipe 32 enters the first outflow pipe 33 via the fluid passage 34.

[0034] In this application, a groove 31 is provided at the top end of the valve core 3, and the groove 31 is arranged to surround the circumference of the top end of the valve core 3. The fluid enters the interior of the valve core 3 through the water inlet end of the first inflow pipe 32, then flows out from the water outlet end of the first inflow pipe 32 and enters the groove 31. Also, since the water outlet end of the first inflow pipe 32 is arranged at the bottom of the groove 31 and the water inlet end of the first outflow pipe 33 is arranged at the top end of the valve core 3, the fluid can flow axially around the top end of the valve core 3 along the groove 31 instead of directly flowing out from the water inlet end of the first outflow pipe 33. When the fluid overflows from the groove 31, the fluid exerts pressure on the diaphragm 22 at the top end of the valve core 3, forcing the diaphragm 22 to move towards the elastic member 21. The diaphragm 22 drives the elastic member 21 to compress, thereby forming a fluid channel 34 between the diaphragm 22 and the valve core 3. Then the fluid enters the first outflow pipe 33 through the fluid channel 34 and thus flows out to the outside. Compared with the prior art, by providing a groove 31 communicated with the first inflow pipe 32 at the top end of the valve core 3, this application can greatly extend the flow path of the fluid. For multiphase fluids, the extension of the flow path can also provide sufficient time conditions for the multiphase fluids to reach phase equilibrium. When the multiphase fluids flow in the first inflow pipe 32 and the groove 31, they can gradually reach phase equilibrium. After reaching phase equilibrium, pressure is applied to the diaphragm 22 and acts on the elastic member 21. By the expansion and contraction of the elastic member 21, the pressures in the first inflow pipe 32 and the second inflow pipe are adjusted, thereby forming a stable multiphase system and ensuring the stability of the system pressure under gas-liquid non-homogeneous conditions, solving the problem of unstable pressure when gas phase and liquid phase coexist in the prior art. Therefore, the pressure regulator in this application can also be applied to multiphase fluid systems.

[0035] Specifically, the receiving cavity 12 is transversely and penetratingly arranged at the bottom of the main body portion 1.

[0036] Specifically, the water inlet end of the first inflow pipe 32 penetrates through the side wall of the valve core 3, and the water outlet end of the first inflow pipe 32 penetrates through the top end of the valve core 3. The water inlet end of the first outflow pipe 33 penetrates through the top end of the valve core 3, and the water outlet end of the first inflow pipe 32 penetrates through the other side wall of the valve core 3 opposite to the water inlet end of the first inflow pipe 32.

[0037] Further, the first inflow pipe 32 is communicated with the bottom of the groove 31, and the first outflow pipe 33 is arranged at the side of the groove 31.

[0038] Specifically, the width of the groove 31 is greater than the diameter of the water outlet end of the first inflow pipe 31.

[0039] Further, a pressure sensor is arranged at the inlet end of the first outflow pipe 33 for displaying the regulated pressure in real time.

[0040] Reference Figure 3, in the first embodiment, the number of the first inflow pipe 32 and the first outflow pipe 33 is one each, which is used for fluids with a relatively low flow rate.

[0041] Reference Figure 4 , in the second embodiment, different from the first embodiment in terms of the number of the first inflow pipes 32, the number of the first inflow pipes 32 is two, and the number of the first outflow pipes 33 is one. The two first inflow pipes 32 are arranged at intervals in the same groove 31. Further, the two first inflow pipes 32 are distributed at an interval of 90 degrees.

[0042] Reference Figure 5 , the number of the first inflow pipes 32 and the first outflow pipes 33 is multiple. The number of the grooves 31 is greater than or equal to the number of the first inflow pipes 32, and the number of the grooves 31 can also be less than the number of the first inflow pipes 32. When the number of the grooves 31 is the same as the number of the first inflow pipes 32, one first inflow pipe 32 is correspondingly arranged in one groove 31. When the number of the grooves 31 is greater than the number of the first inflow pipes 32, the adjacent two grooves 31 are communicated with each other, and the first inflow pipe 32 is arranged in one of the two adjacent grooves 31 that are communicated with each other. When the number of the grooves 31 is less than the number of the first inflow pipes 32, two or more first inflow pipes 32 are communicated with the same groove 31. The water inlet ends of the multiple first inflow pipes 32 are communicated with each other, and the water outlet ends of the multiple first outflow pipes 33 are communicated with each other. The multiple first inflow pipes 32 and the multiple first outflow pipes 33 are used for the flow splitting of high-flow-rate fluids to achieve the pressure stability of the high-flow-rate fluids. Preferably, the multiple first inflow pipes 32 are arranged at intervals along the radial direction of the valve core 3 in the groove 31.

[0043] In the third embodiment, different from the first embodiment in terms of the number of the first inflow pipes 32 and the first outflow pipes 33, the number of the first inflow pipes 32 and the first outflow pipes 33 is three each. The three first inflow pipes 32 are respectively arranged in three grooves 31, and the water outlet ends of the three first inflow pipes are on the same straight line. The three first outflow pipes 33 are arranged at intervals outside the groove 31, and the water inlet ends of the three first outflow pipes 33 are on the same straight line.

[0044] In this embodiment, the groove 31 is arranged to surround the top of the valve core 3 in the circumferential direction to form a ring shape. The ring-shaped groove 31 can reduce the resistance of the fluid compared with the square groove, which is convenient for the fluid to flow in the groove 31. In other embodiments, the groove 31 can also be rectangular, polygonal, etc., and preferably the ring-shaped groove 31.

[0045] Specifically, the diaphragm 22 is of a circular structure, the valve core 3 is of a cylindrical structure, the inner cavity 11 includes a cylindrical cavity and a frustum-shaped cavity. One side of the diaphragm 22 abuts against the bottom end of the side wall of the frustum-shaped cavity, and the other side of the diaphragm abuts against the top end of the valve core 3. When the fluid lifts the diaphragm 22, since the periphery of the diaphragm 22 is clamped between the bottom side wall of the inner cavity 11 and the top end of the valve core 3, the periphery of the diaphragm 22 is not affected by the fluid impact. The middle part of the diaphragm 22 bulges upward to form a fluid passage 34. At this time, the water inlet end of the first outflow pipe 33 is communicated with the groove 31, and the fluid flows through the groove 31 and the water inlet end of the first outflow pipe 33 in sequence, and then flows out from the water outlet end of the first outflow pipe 33. The diaphragm 22 is used to seal the inner cavity 11 and the receiving cavity 12, prevent the fluid flowing in the receiving cavity 12 from entering the inner cavity 11, and regulate the pressure between the first inflow pipe 32 and the first outflow pipe 33.

[0046] Further, when the diaphragm is not impacted by the fluid, the diaphragm 22 closely adheres to the top end of the valve core 3. At this time, the water inlet end of the first outflow pipe 33 is not communicated with the groove 31.

[0047] Specifically, the material of the diaphragm 22 is fluororubber, preferably perfluororubber.

[0048] In this embodiment, the valve core 3 is made of fluororesin, preferably polytetrafluoroethylene resin or polytetrafluoroethylene resin. This can reduce the damage of liquid and / or gas to the contact surface and extend the service time. In other embodiments, the valve core 3 can also be made of metal materials, including but not limited to 316L stainless steel and Hastelloy.

[0049] In this embodiment, the elastic member 21 is a spring.

[0050] Reference Figure 1 As shown in the figure, the pressure regulating assembly 2 further includes a first spring seat 23 and a second spring seat 24. The first spring seat 23 is arranged in the inner cavity 11. One end of the first spring seat 23 abuts against the top end of the inner cavity 11, and the other end of the first spring seat 23 abuts against the top end of the elastic member 21. The second spring seat 24 is arranged in the inner cavity 11. One end of the second spring seat 24 abuts against the bottom end of the elastic member 21, and the other end of the second spring seat 24 abuts against the diaphragm 22.

[0051] Reference Figure 1 As shown in the figure, a through hole 13 is further formed in the main body portion 1. The through hole 13 is communicated with the inner cavity 11. The pressure regulating device further includes an adjusting knob 25. The adjusting knob 25 is arranged in the through hole 13, and the bottom end of the adjusting knob 25 abuts against the end of the first spring seat 23 away from the elastic member 21.

[0052] Specifically, internal threads are provided inside the through hole 13, and external threads are provided on the outer surface of the adjusting knob 25. The external threads match the internal threads. By adjusting the height of the bottom end of the adjusting knob 25 exposed from the through hole 13, the degree of expansion and contraction of the elastic member 21 can be adjusted, thereby adjusting the set pressure of the pressure regulator device.

[0053] Reference Figure 1 , the pressure regulator device further includes a second inflow pipe 4 and a second outflow pipe 5. Part of the second inflow pipe 4 is disposed inside the receiving cavity 12, and part of the second inflow pipe 4 is exposed outside the main body 1 and is connected to the water inlet end of the first inflow pipe 32. The second inflow pipe 4 is used for the entry of fluid and for conveying the fluid to the first inflow pipe 32. Part of the second outflow pipe 5 is disposed inside the receiving cavity 12, and part of the second outflow pipe 5 is exposed outside the main body 1 and is connected to the water outlet end of the first outflow pipe 33. The second outflow pipe 5 is used for outputting the fluid output by the first outflow pipe 33.

[0054] Specifically, the second inflow pipe 4 and the second outflow pipe 5 are disposed on opposite sides of the main body 1. Further, the structures and materials of the second inflow pipe 4 and the second outflow pipe 5 are the same. The material is specifically fluororesin, which can reduce the damage of the fluid to the second inflow pipe 4 and the second outflow pipe 5 and extend the service life.

[0055] Reference Figure 1 and Figure 7 , the pressure regulator device further includes a first connector 6 and a second connector 7. The first connector 6 is disposed between the second inflow pipe 4 and the first inflow pipe 32 for realizing a sealed connection between the second inflow pipe 4 and the first inflow pipe 32. The second connector 7 is disposed between the first outflow pipe 33 and the second outflow pipe 5 for realizing a sealed connection between the first outflow pipe 33 and the second outflow pipe 5.

[0056] Reference Figure 1 and Figure 7 , the first connector 6 includes a first connecting member 61, a first fastening ring 62 and a first pressing ring 63. The first connecting member 61 is sleeved on one end of the second inflow pipe 4 away from the first inflow pipe 32. The first pressing ring 63 is sleeved on one end of the second inflow pipe 4 close to the first inflow pipe 32. The first fastening ring 62 is sleeved on the second inflow pipe 4 and is connected to one end of the first pressing ring 63 away from the first inflow pipe 32.

[0057] Specifically, threaded holes are provided at both ends of the receiving cavity 12. The outer surface of the first connecting member 61 is also provided with threads. The first connecting member 61 is sleeved on the second inflow pipe 4, and the first connecting member 61 can slide relative to the second inflow pipe 4. The first connecting member 61 is threadedly connected to the threaded hole at one end of the receiving cavity 12 close to the first inflow pipe 32 to achieve a tight connection between the first inflow pipe 32 and the second inflow pipe 4.

[0058] Further, the end of the second inflow pipe 4 close to the first inflow pipe 32 is flanged to prevent the first pressing ring 63 from falling off from one end of the second inflow pipe 4.

[0059] Furthermore, the outer diameter of the first pressing ring 63 gradually decreases from the end close to the first fastening ring 62 to the end far from the first fastening ring 62. The inner diameter of the first fastening ring 62 gradually decreases from the end close to the first pressing ring 63 to the end far from the first pressing ring 63. And the outer diameter of the end of the first pressing ring 63 close to the first fastening ring 62 is smaller than the inner diameter of the first fastening ring 62 close to the first pressing ring 63 and larger than the inner diameter of the first fastening ring 62 far from the first pressing ring 63, so that the first fastening ring 62 can be sleeved on the outer surface of the first pressing ring 63. The first connecting member 61 is threadedly connected to the second inflow pipe 4. Rotating the first connecting member 61 makes the first connecting member 61 move towards the direction close to the first fastening ring 62 on the second inflow pipe 4, thereby pushing the first fastening ring 62 towards the first pressing ring 63, so that the first fastening ring 62 is sleeved on the first pressing ring 63, and thus the pressing ring is gradually pressed tightly on the second inflow pipe 4. Through the frictional force between the first pressing ring 63, the first fastening ring 62 and the second inflow pipe 4, the first flow pipe and the second inflow pipe 4 can still be tightly connected under the action of air pressure and / or hydraulic pressure, so as to achieve continuous operation under high pressure.

[0060] Reference Figure 1 The second connector 7 includes a second connecting member 71, a second fastening ring 72 and a second pressing ring 73. The second connecting member 71 is sleeved on one end of the second outflow pipe 5 far from the first outflow pipe 33. The second pressing ring 73 is sleeved on one end of the second outflow pipe 5 close to the first outflow pipe 33. The second fastening ring 72 is sleeved on the second outflow pipe 5 and is connected to one end of the second pressing ring 73 far from the first outflow pipe 33.

[0061] Specifically, the structures of the second connector 7 and the first connector 6 are the same, and the second connector 7 will not be described in detail.

[0062] In this embodiment, the materials of the second inflow pipe 4, the second outflow pipe 5, the first connector 6 and the first connector 7 are resin materials, including but not limited to PFA and FEP.

[0063] In the fourth embodiment, reference Figure 8, different from the third embodiment, the materials of the second inflow pipeline 4, the second outflow pipeline 5, the first connector 6 and the first connector 7 are all metal materials to adapt to the high-pressure environment.

[0064] As described above, the pressure regulator device of the present application can be applied to the continuous flow chemical reaction process system of a multiphase fluid system. The pressure regulator device of the present application can be used as a back pressure valve and also as a safety valve.

[0065] Reference Figure 9 , by using the pressure regulator device of the present application, the pressure-flow rate curve presents a straight line, indicating that the pressure is stable at different flow rates, and the pressure fluctuation is less than 0.5%. Therefore, the pressure regulator device of the present application can ensure the stability of the system pressure under gas-liquid non-homogeneous conditions and solve the problem of unstable pressure when gas phase and liquid phase coexist.

[0066] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made by using the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields are all included in the patent protection scope of the present invention.

Claims

1. A pressure regulator device, characterized in that, Comprising: A main body part with a communicated inner cavity and a receiving cavity provided therein, and the axis of the inner cavity is perpendicular to the axis of the receiving cavity; A pressure regulating assembly including an elastic member and a diaphragm. The elastic member is disposed in the inner cavity, the diaphragm is disposed at the bottom end of the inner cavity, the top end of the elastic member abuts against the top end of the inner cavity, the bottom end of the elastic member abuts against one side of the diaphragm, and the diaphragm is elastic; and A valve core disposed in the receiving cavity. The top end of the valve core abuts against the other side of the diaphragm. A groove is provided at the top end of the valve core and is circumferentially arranged along the top end of the valve core. A first inflow pipe and a first outflow pipe are penetrated through the valve core. The water inlet end of the first inflow pipe is for the entry of fluid, the water outlet end of the first inflow pipe is communicated with the bottom of the groove, the water inlet end of the first outflow pipe is disposed at the top end of the valve core, and the water outlet end of the first outflow pipe is for the outflow of fluid. The fluid output by the first inflow pipe is used to apply pressure to the diaphragm to move the diaphragm in the direction towards the elastic member, so that a fluid passage is formed between the diaphragm and the valve core, and the fluid output by the first inflow pipe enters the first outflow pipe through the fluid passage; The pressure regulating assembly further includes a first spring seat disposed in the inner cavity. One end of the first spring seat abuts against the top end of the inner cavity, and the other end of the first spring seat abuts against the top end of the elastic member; The pressure regulating assembly further includes a second spring seat disposed in the inner cavity. One end of the second spring seat abuts against the bottom end of the elastic member, and the other end of the second spring seat abuts against the diaphragm; A through hole is further provided on the main body part and is communicated with the inner cavity. The pressure regulator device further includes an adjusting knob disposed in the through hole, and the bottom end of the adjusting knob abuts against the end of the first spring seat away from the elastic member; The pressure regulator device further includes a second inflow pipe, a part of which is disposed in the receiving cavity and is communicated with the first inflow pipe. The second inflow pipe is for the entry of fluid and for conveying the fluid to the first inflow pipe; The pressure regulator device further includes a second outflow pipe, a part of which is disposed in the receiving cavity and is communicated with the first outflow pipe. The second outflow pipe is for outputting the fluid output by the first outflow pipe.

2. The pressure regulator device according to claim 1, characterized in that, The pressure regulator device further includes a first connector and a second connector. The first connector is disposed between the second inflow pipe and the first inflow pipe for realizing the sealed connection between the second inflow pipe and the first inflow pipe, and the second connector is disposed between the first outflow pipe and the second outflow pipe for realizing the sealed connection between the first outflow pipe and the second outflow pipe.

3. The pressure regulator device according to claim 2, characterized in that, The first connector includes a first connecting member, a first fastening ring, and a first pressing ring. The first connecting member is sleeved on one end of the second inflow pipe away from the first inflow pipe. The first pressing ring is sleeved on one end of the second inflow pipe close to the first inflow pipe. The first fastening ring is sleeved on the second inflow pipe and is connected to one end of the first pressing ring away from the first inflow pipe.

4. The pressure regulator device according to claim 2, characterized in that, The second connector includes a second connecting member, a second fastening ring, and a second pressing ring. The second connecting member is sleeved on one end of the second outflow pipe away from the first outflow pipe. The second pressing ring is sleeved on one end of the second outflow pipe close to the first outflow pipe. The second fastening ring is sleeved on the second outflow pipe and is connected to one end of the second pressing ring away from the first outflow pipe.

5. Application of a pressure regulator device according to any one of claims 1 - 4 in a continuous flow chemical reaction process system.

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