Sealing structure for multiphase mixed transportation pump as turbine

Abstract

The invention discloses a sealing structure with a multiphase mixed transportation pump as a turbine. The sealing structure comprises a turbine pump body, a pipeline and a sealing mechanism. The turbine pump main body is connected with a pair of material conveying pipe and liquid outlet pipe, and the material conveying pipe and the liquid outlet pipe are both connected with first flanges; the pipeline is arranged on one side of the turbine pump body, one end of the pipeline is connected with a second flange, and the second flange corresponds to the first flange; the sealing mechanism is arranged between the second flange and the first flange, the sealing mechanism is used for sealing a gap between the second flange and the first flange, the sealing mechanism comprises a fixing ring, a sealing ring is connected to the fixing ring, a first mounting groove matched with the fixing ring is formed in the second flange, and a second mounting groove matched with the sealing ring is formed in the first flange. According to the invention, the joint between the turbine pump and the pipeline can be efficiently sealed, and the overflow of a conveyed medium is effectively avoided, so that the normal use effect of the turbine pump can be ensured, and meanwhile, the environmental pollution caused by the leaked medium can also be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of sealing structures, in particular to a multiphase mixed transmission pump as a turbine sealing structure. Background Art

[0002] A pump-turbine is a device that uses the reverse operation principle of a pump to convert the pressure energy of a liquid into the rotational mechanical energy of a shaft system. That is, when the pump is running in the forward direction, low-pressure liquid enters the impeller from the suction port, and the impeller rotates to do work on the liquid, converting the mechanical energy into the pressure energy and kinetic energy of the liquid, and the high-pressure fluid is discharged from the outlet of the volute; when the pump is running in the reverse direction to act as a turbine, high-pressure liquid enters from the volute, and the fluid impacts the impeller to rotate and do work on the impeller, converting the pressure energy of the liquid into the rotational mechanical energy of the shaft system, and finally flows out from the impeller outlet. Pump-turbines are mainly used to recover energy in liquids and are commonly seen in energy recovery systems in industrial production. For example, in the chemical, petroleum, metallurgical and other industries, pumps can be used as turbines to recover excess pressure energy generated in the process flow, thereby reducing energy consumption.

[0003] When the existing turbine pump is in use, the sealing effect between it and the pipeline is relatively poor, especially when the turbine pump is performing multi-phase mixed transportation, the transported medium is easy to leak from the connection between the turbine pump and the pipeline, which not only easily reduces the use effect of the turbine pump, but also the overflowed medium may cause environmental pollution. Summary of the invention

[0004] In view of the above situation, in order to remedy the above existing defects, the present invention provides a multi-phase mixed flow pump as a turbine sealing structure.

[0005] The present invention provides the following technical solutions: A multiphase mixed transport pump as a turbine sealing structure provided by the present invention comprises a turbine pump body, a pipeline and a sealing mechanism;

[0006] A pair of material delivery pipes and a liquid outlet pipe are connected to the turbine pump body, and the material delivery pipe and the liquid outlet pipe are both connected to a first flange;

[0007] The pipeline is arranged on one side of the turbine pump body, one end of the pipeline is connected to a second flange, and the second flange corresponds to the first flange;

[0008] The sealing mechanism is arranged between the second flange and the first flange, and is used for sealing the gap between the second flange and the first flange.

[0009] Further, the sealing mechanism comprises a fixing ring, the fixing ring is connected to a sealing ring, the second flange is provided with a first mounting groove matching the fixing ring, the first flange is provided with a second mounting groove matching the sealing ring, and the fixing ring and the sealing ring cooperate with each other to seal the gap between the first flange and the second flange, thereby preventing leakage of the medium transported in the pipeline, thereby ensuring the normal use effect of the turbine pump body, and also preventing environmental pollution caused by the leakage of the medium;

[0010] The sealing ring is provided with flowing liquid. When the flowing liquid is squeezed, the flowing liquid can expand the airbag, and the expanded airbag can fill the groove, further preventing the conveying medium from leaking from the gap between the first flange and the second flange.

[0011] Furthermore, a plurality of extrusion rods are slidably connected to the sealing ring, one end of the extrusion rod passes through the first flange, and one end of the extrusion rod located inside the sealing ring is connected to a extrusion ring, the extrusion ring corresponds to the flowing liquid, and when the extrusion rod is squeezed by the lower cover or the upper cover, the extrusion rod will drive the extrusion ring to squeeze the flowing liquid, so that part of the flowing liquid enters the airbag, thereby allowing the airbag to expand, and the expanded airbag can fill the groove.

[0012] Furthermore, an airbag is provided on the side wall of the sealing ring, the interior of the airbag is connected with the interior of the sealing ring, and a groove matching the airbag is provided in the first flange. When the airbag fills the groove, the gap between the first flange and the second flange can be further sealed to avoid leakage from the gap during transportation in the pipeline, thereby ensuring the normal use of the turbine pump body and avoiding environmental pollution caused by the leaking medium.

[0013] Furthermore, a sealing cover is provided on the outer sides of the second flange and the first flange, and the sealing cover is used to wrap the first flange and the fixing ring, so as to achieve re-sealing of the gap between the first flange and the fixing ring;

[0014] The sealing cover comprises a lower cover and an upper cover, the side walls of the lower cover and the upper cover are connected with connecting ears, a pair of bolts are connected between adjacent pairs of connecting ears, and the lower cover and the upper cover are fixed by the mutual cooperation of the bolts and the connecting ears.

[0015] Furthermore, the inner walls of the lower cover and the upper cover are connected with expansion water stop strips, and the first flange and the second flange are provided with sealing grooves matching the expansion water stop strips. By inserting the expansion water stop strips into the sealing grooves, the gap between the first flange and the fixing ring can be sealed to avoid leakage of the transported medium in the pipeline.

[0016] Furthermore, the inner walls of the lower cover and the upper cover are provided with a plurality of pressure sensors, the plurality of pressure sensors respectively correspond to the plurality of extrusion rods, and the pressure sensors are used to sense the extrusion force of the extrusion rods so as to monitor the expansion of the airbag;

[0017] A liquid level gauge is installed in the lower cover, and the liquid level gauge is used to monitor whether there is liquid in the lower cover;

[0018] An air sensor is installed in the upper cover, and the air sensor is used to monitor whether there is gas in the upper cover.

[0019] Furthermore, a storage box is installed on the upper cover, and a water pump and humidifying liquid are arranged in the storage box. The water pump is arranged in the humidifying liquid. When the water pump is running, the water pump can extract the humidifying liquid.

[0020] Furthermore, a cavity is provided in both the lower cover and the upper cover, the liquid suction end of the water pump is provided in the humidifying liquid, and the liquid discharge end of the water pump is provided in the cavity, and when the water pump is running, the water pump can extract the humidifying liquid and transport the humidifying liquid into the cavity;

[0021] A check valve is installed at the liquid outlet of the water pump to prevent gas or liquid from flowing back through the liquid outlet of the water pump.

[0022] Furthermore, the lower cover and the upper cover are provided with a plurality of through holes, the through holes corresponding to the expansion water stop strips, the humidifying liquid in the cavity contacts the expansion water stop strips through the through holes, the expansion water stop strips expand under the action of the humidifying liquid, and the expanded expansion water stop strips can be used to seal the gap between the first flange and the fixing ring.

[0023] The multiphase mixed flow pump proposed by the present invention adopts the above structure as a turbine sealing structure, which can efficiently seal the connection between the turbine pump and the pipeline, effectively avoid overflow of the conveying medium, thereby ensuring the normal use of the turbine pump, and also avoiding environmental pollution caused by leakage of the medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 A three-dimensional diagram of the turbine pump proposed by the present invention;

[0026] Figure 2 for Figure 1 Schematic diagram of the structure at A in the middle;

[0027] Figure 3 This is a partial structural schematic diagram of a multiphase mixed transport pump as a turbine seal structure proposed by the present invention;

[0028] Figure 4 A cross-sectional view of a turbine seal structure of a multiphase mixed transport pump proposed by the present invention;

[0029] Figure 5 for Figure 4 Schematic diagram of the structure at B in the middle;

[0030] Figure 6 for Figure 4 Schematic diagram of the structure at C in the middle;

[0031] Figure 7 for Figure 4 Schematic diagram of the structure at D in the middle;

[0032] Figure 8 for Figure 4 Schematic diagram of the structure at E in the middle.

[0033] Among them, 1. turbine pump body, 101. feed pipe, 102. liquid outlet pipe, 103. first flange, 2. pipeline, 201. second flange, 3. sealing mechanism, 301. fixing ring, 302. sealing ring, 303. extrusion rod, 304. extrusion ring, 305. flowing liquid, 306. air bag, 4. sealing cover, 401. lower cover, 402. upper cover, 403. connecting ear, 404. expansion water stop strip, 405. pressure sensor, 406. liquid level meter, 407. air sensor, 408. storage box, 409. water pump, 410. humidifying liquid, 411. cavity, 412. through hole. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0036] like Figures 1 to 8 As shown, this embodiment provides a multiphase mixed flow pump as a turbine sealing structure, including a turbine pump body 1, a pipeline 2, a sealing mechanism 3 and a sealing cover 4.

[0037] A pair of material delivery pipes 101 and a liquid outlet pipe 102 are connected to the turbine pump body 1 . The transported medium can flow through the material delivery pipe 101 , thereby driving the turbine pump body 1 to operate, and the transported medium can flow out through the liquid outlet pipe 102 .

[0038] In addition, the material delivery pipe 101 and the liquid outlet pipe 102 are both connected with a first flange 103 , so as to facilitate the connection of the material delivery pipe 101 and the liquid outlet pipe 102 to the pipeline 2 .

[0039] like Figures 1 to 8 As shown, the pipeline 2 is arranged on one side of the turbine pump body 1 , and one end of the pipeline 2 is connected to the second flange 201 , and the second flange 201 corresponds to the first flange 103 .

[0040] like Figures 1 to 8 As shown, the sealing mechanism 3 is arranged between the second flange 201 and the first flange 103. The sealing mechanism 3 is used to seal the gap between the second flange 201 and the first flange 103 to avoid leakage of the conveying medium in the pipeline 2, thereby ensuring the normal use effect of the turbine pump body 1 and avoiding environmental pollution caused by the leaking medium.

[0041] The sealing mechanism 3 includes a fixing ring 301, a sealing ring 302 is connected to the fixing ring 301, a first mounting groove matching the fixing ring 301 is provided in the second flange 201, and a second mounting groove matching the sealing ring 302 is provided in the first flange 103. The fixing ring 301 and the sealing ring 302 cooperate with each other to seal the gap between the first flange 103 and the second flange 201, thereby preventing the medium transported in the pipeline 2 from leaking, thereby ensuring the normal use of the turbine pump body 1, and also preventing environmental pollution caused by the leaking medium.

[0042] In addition, a plurality of extrusion rods 303 are slidably connected to the sealing ring 302, one end of the extrusion rod 303 passes through the first flange 103, and one end of the extrusion rod 303 located inside the sealing ring 302 is connected to the extrusion ring 304, and the extrusion ring 304 corresponds to the flowing liquid 305. When the extrusion rod 303 is squeezed by the lower cover 401 or the upper cover 402, the extrusion rod 303 drives the extrusion ring 304 to squeeze the flowing liquid 305, so that part of the flowing liquid 305 enters the airbag 306, thereby allowing the airbag 306 to expand, and the expanded airbag 306 can fill the groove.

[0043] Specifically, the sealing ring 302 is provided with flowing liquid 305 . When the flowing liquid 305 is squeezed, the flowing liquid 305 can expand the airbag 306 . The expanded airbag 306 can fill the groove, further preventing the conveying medium from leaking from the gap between the first flange 103 and the second flange 201 .

[0044] In addition, a gas bag 306 is provided on the side wall of the sealing ring 302, the interior of the gas bag 306 is connected to the interior of the sealing ring 302, and a groove matching the gas bag 306 is provided in the first flange 103. When the gas bag 306 fills the groove, the gap between the first flange 103 and the second flange 201 can be further sealed to prevent leakage from the gap in the pipeline 2, thereby ensuring the normal use of the turbine pump body 1 and preventing environmental pollution caused by the leaked medium.

[0045] like Figures 1 to 8 As shown, the sealing cover 4 is arranged on the outer sides of the second flange 201 and the first flange 103 , and the sealing cover 4 is used to wrap the first flange 103 and the fixing ring 301 , so as to achieve the re-sealing of the gap between the first flange 103 and the fixing ring 301 .

[0046] The sealing cover 4 includes a lower cover 401 and an upper cover 402. The side walls of the lower cover 401 and the upper cover 402 are connected with connecting ears 403. A pair of bolts are connected between adjacent pairs of connecting ears 403. The lower cover 401 and the upper cover 402 are fixed by the mutual cooperation of the bolts and the connecting ears 403.

[0047] In addition, the inner walls of the lower cover 401 and the upper cover 402 are both connected with expansion water stop strips 404, and the first flange 103 and the second flange 201 are both provided with sealing grooves matching the expansion water stop strips 404. By inserting the expansion water stop strips 404 into the sealing grooves, the gap between the first flange 103 and the fixing ring 301 can be sealed to prevent leakage of the transport medium in the pipeline 2.

[0048] Specifically, the inner walls of the lower cover 401 and the upper cover 402 are provided with a plurality of pressure sensors 405, and the plurality of pressure sensors 405 correspond to the plurality of extrusion rods 303. The pressure sensors 405 are used to sense the extrusion force of the extrusion rods 303, so as to monitor the expansion of the airbag 306.

[0049] like Figures 1 to 8 As shown, a liquid level meter 406 is installed in the lower cover 401, and the liquid level meter 406 is used to monitor whether there is liquid in the lower cover 401. An air sensor 407 is installed in the upper cover 402, and the air sensor 407 is used to monitor whether there is gas in the upper cover 402.

[0050] A storage box 408 is installed on the upper cover 402. A water pump 409 and a humidifying liquid 410 are arranged in the storage box 408. The water pump 409 is arranged in the humidifying liquid 410. When the water pump 409 is running, the water pump 409 can extract the humidifying liquid 410.

[0051] In addition, a cavity 411 is provided in both the lower cover 401 and the upper cover 402, a liquid suction end of the water pump 409 is provided in the humidifying liquid 410, and a liquid discharge end of the water pump 409 is provided in the cavity 411. When the water pump 409 is running, the water pump 409 can extract the humidifying liquid 410 and transport the humidifying liquid 410 to the cavity 411.

[0052] Preferably, a check valve is installed at the liquid outlet of the water pump 409 to prevent gas or liquid from flowing back through the liquid outlet of the water pump 409.

[0053] Specifically, the lower cover 401 and the upper cover 402 are both provided with a plurality of through holes 412, and the through holes 412 correspond to the expansion water stop strips 404, and the humidifying liquid 410 in the cavity 411 contacts the expansion water stop strips 404 through the through holes 412. The expansion water stop strips 404 expand under the action of the humidifying liquid 410, and the expanded expansion water stop strips 404 can seal the gap between the first flange 103 and the fixing ring 301.

[0054] In addition, a control unit is installed on the upper cover 402, and the pressure sensor 405, the liquid level gauge 406, the air sensor 407 and the water pump 409 are electrically connected to the control unit. When the pressure sensor 405, the liquid level gauge 406 and the air sensor 407 detect a signal, a monitoring signal is sent to the control unit, and the control unit controls the water pump 409 to operate.

[0055] When in use, the sealing mechanism 3 is installed between the first flange 103 and the fixing ring 301 . The sealing mechanism 3 can seal the gap between the first flange 103 and the fixing ring 301 to prevent the conveying medium in the pipeline 2 from leaking through the gap between the first flange 103 and the fixing ring 301 .

[0056] The sealing cover 4 on the outside of the first flange 103 and the fixing ring 301 can be used to seal the gap between the first flange 103 and the fixing ring 301 again, further preventing leakage of the conveying medium. When the sealing cover 4 is installed, the expansion water stop strip 404 will be inserted into the sealing groove. At the same time, the lower cover 401 and the upper cover 402 will squeeze a number of squeezing rods 303 respectively, and the squeezing rods 303 will drive the squeezing ring 304 to squeeze the flowing liquid 305, so that part of the flowing liquid 305 enters the airbag 306, thereby allowing the airbag 306 to expand, and the expanded airbag 306 can fill the groove. When the expanded airbag 306 fills the groove, it further prevents the conveying medium from leaking from the gap between the first flange 103 and the second flange 201.

[0057] The pressure sensors 405 in the lower cover 401 and the upper cover 402 monitor the pressure of the extrusion rod 303. If the pressure changes, a monitoring signal is sent to the control unit, and the control unit controls the water pump 409 to operate, and the water pump 409 absorbs the humidifying liquid 410. The humidifying liquid 410 enters the cavity 411 and contacts the expansion water stop strip 404 through the plurality of through holes 412. The expansion water stop strip 404 expands under the action of the humidifying liquid 410, and the expansion expansion water stop strip 404 can be used to seal the gap between the first flange 103 and the fixing ring 301 to prevent leakage of the transport medium in the pipeline 2.

[0058] In addition, when the liquid level meter 406 in the lower cover 401 detects liquid, or the air sensor 407 in the upper cover 402 detects gas, a monitoring signal will be sent to the control unit, and the control unit will also operate the water pump 409 and deliver humidifying liquid 410 to the expansion water stop strip 404 to expand the expansion water stop strip 404.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, material or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, material or apparatus.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multiphase mixed transport pump as a turbine seal structure, characterized in that: include A turbine pump body (1), wherein a pair of material delivery pipes (101) and a liquid discharge pipe (102) are connected to the turbine pump body (1), and the material delivery pipe (101) and the liquid discharge pipe (102) are both connected to a first flange (103); A pipeline (2) is arranged on one side of the turbine pump body (1), one end of the pipeline (2) is connected to a second flange (201), and the second flange (201) corresponds to the first flange (103); A sealing mechanism (3) is provided between the second flange (201) and the first flange (103), and the sealing mechanism (3) is used to seal a gap between the second flange (201) and the first flange (103).

2. The multiphase mixed flow pump as a turbine seal structure according to claim 1, characterized in that: The sealing mechanism (3) comprises a fixing ring (301), the fixing ring (301) is connected to a sealing ring (302), a first mounting groove matching the fixing ring (301) is provided in the second flange (201), a second mounting groove matching the sealing ring (302) is provided in the first flange (103), and a flowing liquid (305) is provided in the sealing ring (302).

3. The multiphase mixed flow pump as a turbine seal structure according to claim 2, characterized in that: A plurality of extrusion rods (303) are slidably connected to the sealing ring (302), one end of the extrusion rod (303) passes through the first flange (103), one end of the extrusion rod (303) located inside the sealing ring (302) is connected to an extrusion ring (304), and the extrusion ring (304) corresponds to the flowing liquid (305).

4. The multiphase mixed flow pump as a turbine seal structure according to claim 3, characterized in that: An airbag (306) is provided on the side wall of the sealing ring (302); the interior of the airbag (306) is connected to the interior of the sealing ring (302); and a groove matching the airbag (306) is provided in the first flange (103).

5. The multiphase mixed flow pump as a turbine seal structure according to claim 4, characterized in that: A sealing cover (4) is provided on the outer side of the second flange (201) and the first flange (103), and the sealing cover (4) includes a lower cover (401) and an upper cover (402). The side walls of the lower cover (401) and the upper cover (402) are both connected with connecting ears (403), and a pair of bolts are connected between adjacent pairs of connecting ears (403).

6. The multiphase mixed flow pump as a turbine seal structure according to claim 5, characterized in that: The inner walls of the lower cover (401) and the upper cover (402) are both connected with expansion water stop strips (404), and the first flange (103) and the second flange (201) are both provided with sealing grooves matching the expansion water stop strips (404).

7. The multiphase mixed flow pump as a turbine seal structure according to claim 6, characterized in that: The inner walls of the lower cover (401) and the upper cover (402) are both provided with a plurality of pressure sensors (405), and the plurality of pressure sensors (405) respectively correspond to the plurality of extrusion rods (303). A liquid level meter (406) is installed in the lower cover (401), and an air sensor (407) is installed in the upper cover (402).

8. The multiphase mixed flow pump as a turbine seal structure according to claim 7, characterized in that: A storage box (408) is installed on the upper cover (402), and a water pump (409) and a humidifying liquid (410) are arranged in the storage box (408), and the water pump (409) is arranged in the humidifying liquid (410).

9. The multiphase mixed flow pump as a turbine seal structure according to claim 8, characterized in that: A cavity (411) is provided in both the lower cover (401) and the upper cover (402); a liquid suction end of the water pump (409) is provided in the humidifying liquid (410); a liquid outlet end of the water pump (409) is provided in the cavity (411); and a check valve is installed at the liquid outlet end of the water pump (409).

10. The multiphase mixed flow pump as a turbine seal structure according to claim 9, characterized in that: The lower cover (401) and the upper cover (402) are both provided with a plurality of through holes (412), and the through holes (412) correspond to the expansion water stop strips (404).

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