A condenser matched with a steam turbine unit and an assembly method thereof

Abstract

The present invention discloses a condenser matched with a steam turbine unit and an assembly method thereof, comprising a base, a steam turbine unit body, a condenser body and condenser inlet and outlet pipes, two groups of condenser inlet and outlet pipes are provided with a first mounting groove on their surfaces, and an inlet and outlet pipe sieve plate is inserted into the first mounting groove, an annular strap is integrally formed on the outer wall of the inlet and outlet pipe sieve plate, and the outer wall of the strap can fit tightly with the inner wall of the first mounting groove, and the first mounting groove is connected to the strap via a rotating mechanism; by providing the first mounting groove, the strap and the inlet and outlet pipe sieve plates, etc., the problem that the existing filter screen is prone to excessive accumulation of debris at a certain position during use while other positions do not effectively participate in the process of filtering debris is effectively avoided, and its position can be adjusted by rotating the inlet and outlet pipe sieve plates so that the uncovered part can participate in the filtration, thereby improving the practicality of the device.

Description

Technical Field

[0001] The invention relates to a condenser matched with a steam turbine unit and an assembling method thereof. Background Art

[0002] A steam turbine is a rotary steam power device that consists of two components: a rotating part and a stationary part. Steam undergoes energy conversion in different ways in the steam turbine, which constitutes steam turbines with different working principles. Its structural components include a rotor and a stator.

[0003] A condenser is a heat exchanger that condenses steam from a steam turbine into water. It is also called a rehydrator. It is mainly used in steam turbine power plants and is divided into two types: water-cooled condensers and air-cooled condensers. After the steam enters the condenser, it exchanges heat with the cooling medium. During the heat transfer process, the heat in the steam is transferred to the cooling medium, causing its temperature to rise. At the same time, the water molecules in the steam gradually condense into liquid water, releasing a large amount of latent heat until it is completely condensed into water.

[0004] Most of the inlet and outlet pipes of the condenser are equipped with filter screens to prevent debris from entering the condenser. These debris can easily clog the tube sheet, copper tube, and ball collecting net, which not only reduces the heat transfer effect of the condenser, but also may cause the condenser to malfunction. However, during use, the existing filter screen is prone to excessive debris accumulation at a certain position, while other positions are not effectively involved in the process of filtering debris, and the practicality of the device is not strong. For this reason, we propose a condenser for use with a steam turbine unit and an assembly method thereof. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a condenser and an assembly method thereof for a steam turbine unit. By setting a first mounting groove, a strap and an inlet and outlet pipe sieve plate, the inlet and outlet pipe sieve plate can be rotated and set inside the inlet and outlet pipes of the condenser through the first mounting groove and the strap. When a certain part of the surface of the inlet and outlet pipe sieve plate is covered with a lot of debris, its position can be adjusted by rotating the inlet and outlet pipe sieve plate, so that the uncovered part can participate in the filtration, thereby improving the practicality of the device.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a condenser for use with a steam turbine unit and an assembly method thereof, comprising a base, a steam turbine unit body, a condenser body and condenser inlet and outlet pipes, the condenser body being fixedly mounted on the top of the base, and the steam turbine unit body being connected to the top of the condenser body via a pipeline, two groups of condenser inlet and outlet pipes being fixedly mounted on one side surface of the condenser body, a first mounting groove being provided on the surfaces of the two groups of condenser inlet and outlet pipes, and inlet and outlet pipe sieve plates being inserted into the first mounting groove, an annular strap being integrally formed on the outer wall of the inlet and outlet pipe sieve plate, and the outer wall of the strap can fit tightly with the inner wall of the first mounting groove, and the first mounting groove is connected to the strap via a rotating mechanism.

[0007] As a preferred technical solution of the present invention, the rotating mechanism includes an annular rotating groove opened on the inner wall surface of the first installation groove, and a rotating ring is rotatably arranged inside the rotating groove, and the rotating ring is connected to the strap through a locking mechanism.

[0008] As a preferred technical solution of the present invention, a guide rail is integrally formed on one side of the inner wall of the rotating groove, and an annular interlocking groove is provided on the outer wall of the rotating ring close to the guide rail, and the interlocking groove is interlocked on the surface of the guide rail, and several groups of rolling balls are embedded at equal distances on both sides of the outer wall of the guide rail, and the outer walls of the balls are tightly fitted with the inner wall surface of the interlocking groove.

[0009] As a preferred technical solution of the present invention, the locking mechanism includes a plurality of bolt slots equidistantly arranged on the outer wall surface of the strap, and a rotating rod is provided through the outer surface of the bolt slot, and a bolt is integrally formed on the inner end of the rotating rod;

[0010] The outer surface of the rotating ring is equidistantly provided with thread grooves having the same number as the bolts, and the thread grooves penetrate the outer surface of the rotating groove, and the bolts can be rotated and embedded in the thread grooves.

[0011] As a preferred technical solution of the present invention, a first spring is wound around the surface of the bolt, one end of the first spring is connected to the inner wall surface of the bolt groove, and the other end is fitted on the outer wall surface of the bolt.

[0012] As a preferred technical solution of the present invention, a plurality of groups of grooves are equidistantly formed around the outer end surface of the rotating rod.

[0013] As a preferred technical solution of the present invention, a driving mechanism is provided on the inner surface of the panel, and the driving mechanism includes a second mounting groove equidistantly arranged on the inner surface of the panel, and a rotating shaft is fixedly installed inside the second mounting groove, and fan blades are installed on the surface of the rotating shaft. The fan blades are connected to the rotating shaft through a limiting mechanism, and the ends of the fan blades away from the rotating shaft are all inclined.

[0014] As a preferred technical solution of the present invention, the limiting mechanism includes spring grooves equidistantly arranged on the outer wall surface of the rotating shaft, and a limiting pin is provided through the outer surface of the spring groove. One end of the second spring is connected to the inner wall of the spring groove, and the other end of the second spring is connected to the inner end surface of the limiting pin.

[0015] The inner wall surface of the fan blade sleeve on the surface of the rotating shaft is equidistantly surrounded by limiting grooves, and limiting pins can be inserted into the limiting grooves.

[0016] As a preferred technical solution of the present invention, an adjustment structure is connected between the fan blade and the inlet and outlet sieve plates, and the adjustment structure includes a gear sleeved on the surface of the fan blade, and the gear is located inside the second mounting groove;

[0017] The surface of the inlet and outlet sieve plate is provided with an arc-shaped adjustment hole, the outer surface of the inlet and outlet sieve plate is fitted with an adjustment ring, the inner surface of the inlet and outlet sieve plate is fitted with a gear ring, and a connecting rod is provided between the gear ring and the adjustment ring and passes through the adjustment hole;

[0018] The gear rings are respectively engaged with the gears.

[0019] The present invention also provides a technical solution, a method for assembling a condenser for a steam turbine unit, the specific steps of which are as follows:

[0020] S1. Push the adjusting ring, causing it to rotate via the connecting rod and the gear ring. The gear ring then drives the fan blades to rotate on the surface of the shaft via the gears, adjusting the fan blades' inclination to a suitable angle. After adjustment, the limit pin is pushed back into the other limit slot by the second spring, and the fan blades are fixed.

[0021] S2. Move the inlet and outlet sieve plates so that they drive the fan blades to insert into the inlet and outlet sieve plates of the condenser, and at the same time drive the strap plate to fit into the first mounting groove and fit into the outer wall of the threaded groove;

[0022] S3. Rotate and push the rotating rod, so that the bolt drives the bolt to move inside the bolt groove and compress the first spring. The first spring is elastically deformed due to the compression of the bolt, so that the bolt can extend from the bolt groove and rotate to embed into the thread groove, thus completing the fixation of the inlet and outlet sieve plates;

[0023] S4. When the steam turbine unit and condenser unit start operating, the two condenser inlet and outlet pipes draw in air and discharge exhaust gas, respectively. During the intake and discharge process, the gas passes through the fan blades and drives the rotating shaft to rotate. The rotating shaft drives the strap plate to rotate through the second mounting slot. The strap plate drives the rotating ring to rotate within the constraints of the rotating slot through the bolts and threaded grooves. The inlet and outlet sieve plates can rotate, and the airflow fully contacts the rotating inlet and outlet sieve plates to improve the filtering effect.

[0024] S5. When the inlet and outlet sieve plates need to be replaced, the lock between the bolt and the threaded groove is released by rotating the rotating rod in the opposite direction, and the connection between the rotating ring and the strap is released, so that the inlet and outlet sieve plates can be removed and replaced.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The first mounting groove, the strap and the inlet and outlet sieve plates are provided to effectively avoid the problem that during use of the existing filter screen, excessive debris is easily accumulated at a certain position, while other positions do not effectively participate in the process of filtering debris. By moving the inlet and outlet sieve plates, the inlet and outlet sieve plates can be rotated and arranged inside the inlet and outlet sieves of the condenser through the first mounting groove and the strap. When a certain part of the surface of the inlet and outlet sieve plates is covered with a lot of debris, its position can be adjusted by rotating the inlet and outlet sieve plates, so that the uncovered part can participate in the filtration, thereby improving the practicality of the device.

[0027] 2. By setting up the second mounting groove, rotating shaft and fan blades, etc., it is effectively avoided that the staff needs to regularly observe the situation of debris covering the surface of the inlet and outlet sieve plates, so as to achieve the rotation and adjustment of the position of the inlet and outlet sieve plates at the first time. The problem that the adjustment interval is too short may cause the operation to be more cumbersome. In the process of the two sets of condenser inlet and outlet pipes sucking air and discharging exhaust gas, the gas passes through the fan blades during the inhalation and discharge process, and the fan blades push the rotating shaft to rotate. The rotating shaft drives the strap to rotate through the second mounting groove, so that the strap drives the rotating ring to rotate under the restriction of the rotating groove through the bolts and threaded grooves, and the inlet and outlet sieve plates can rotate, thereby achieving the goal of making the inlet and outlet sieve plates rotate by themselves and making all areas of them fully participate in the filtration process, thereby improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the partial three-dimensional structure of the inlet and outlet pipes of the condenser of the present invention;

[0030] Figure 3 This is a schematic diagram of a first partial three-dimensional structure of the inlet and outlet sieve plate of the present invention;

[0031] Figure 4 This is a schematic diagram of a second partial three-dimensional structure of the inlet and outlet sieve plate of the present invention;

[0032] Figure 5 It is a partial front view cross-sectional structural diagram of the inlet and outlet sieve plates of the present invention in an installed state;

[0033] Figure 6 For the present invention Figure 4A schematic diagram of the structure at center A;

[0034] Figure 7 For the present invention Figure 5 A magnified schematic diagram of the structure at point C in the middle;

[0035] Figure 8 For the present invention Figure 5 Enlarged schematic diagram of the structure at point B in the middle.

[0036] Among them: 1. base; 2. turbine unit body; 3. condenser body; 4. condenser inlet and outlet pipes; 5. inlet and outlet pipe sieve plates; 61. first mounting groove; 62. strap; 63. rotating groove; 64. rotating ring; 65. guide rail; 66. fitting groove; 67. ball bearing; 71. bolt groove; 72. rotating rod; 73. bolt; 74. first spring; 75. threaded groove; 81. second mounting groove; 82. rotating shaft; 83. fan blade; 84. spring groove; 85. second spring; 86. limit pin; 87. limit groove; 91. gear; 92. gear ring; 93. adjustment hole; 94. adjustment ring. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, purpose and efficacy of the present invention easy to understand, the present invention is further described below in conjunction with specific examples, but the following examples are only preferred embodiments of the present invention, not all. Based on the examples in the implementation manner, other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention. The experimental methods in the following examples, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following examples, unless otherwise specified, can be obtained from commercial channels.

[0038] Example:

[0039] like Figure 1 - Figure 8 As shown, this embodiment proposes a condenser for use with a steam turbine unit, comprising a base 1, a steam turbine unit body 2, a condenser body 3 and a condenser inlet and outlet pipe 4. The condenser body 3 is fixedly mounted on the top of the base 1, and the steam turbine unit body 2 is connected to the top of the condenser body 3 via a pipe. Two sets of condenser inlet and outlet pipes 4 are fixedly mounted on one side surface of the condenser body 3. First mounting grooves 61 are formed on the surfaces of the two sets of condenser inlet and outlet pipes 4, and inlet and outlet pipe sieve plates 5 are inserted into the first mounting grooves 61. An annular strap 62 is integrally formed on the outer wall of the inlet and outlet pipe sieve plate 5, and the outer wall of the strap 62 can fit tightly with the inner wall of the first mounting groove 61. The first mounting groove 61 is connected to the strap 62 via a rotating mechanism.

[0040] The rotating mechanism includes an annular rotating groove 63 provided on the inner wall surface of the first mounting groove 61, and a rotating ring 64 is rotatably provided inside the rotating groove 63. The rotating ring 64 is connected to the strap 62 through a locking mechanism.

[0041] By moving the inlet and outlet air pipe sieve plate 5, the inlet and outlet air pipe sieve plate 5 can be rotated and set inside the condenser inlet and outlet air pipe 4 through the first installation groove 61 and the strap 62. When a certain part of the surface of the inlet and outlet air pipe sieve plate 5 is covered with a lot of debris, its position can be adjusted by rotating the inlet and outlet air pipe sieve plate 5 so that the uncovered part can participate in the filtration, thereby improving the practicality of the device.

[0042] In order to improve the smoothness of the rotation of the inlet and outlet sieve plates 5, a guide rail 65 is integrally formed on one side of the inner wall of the rotating groove 63, and an annular fitting groove 66 is opened on the outer wall of the rotating ring 64 near the guide rail 65. The fitting groove 66 is fitted on the surface of the guide rail 65. A plurality of groups of rolling balls 67 are equidistantly embedded on both sides of the outer wall of the guide rail 65, and the outer walls of the balls 67 are tightly fitted with the inner wall surface of the fitting groove 66.

[0043] Through this design, when the rotating ring 64 rotates inside the rotating groove 63, it drives the interlocking groove 66 to move under the restriction of the guide rail 65. While the guide rail 65 and the interlocking groove 66 limit the rotation position of the rotating ring 64, the interlocking groove 66 drives the ball 67 embedded on the surface of the guide rail 65 to roll, and at the same time reduces the contact area between the rotating ring 64 and the rotating groove 63, thereby achieving the purpose of improving the smoothness of the rotation of the inlet and outlet air pipe screen plate 5.

[0044] The locking mechanism includes a plurality of bolt slots 71 equidistantly arranged on the outer wall surface of the strap 62. A rotating rod 72 is provided on the outer surface of the bolt slot 71, and a bolt 73 is integrally formed on the inner end of the rotating rod 72.

[0045] The outer surface of the rotating ring 64 is equidistantly provided with thread grooves 75 having the same number as the bolts 73. The thread grooves 75 penetrate the outer surface of the rotating groove 63, and the bolts 73 can be rotatably engaged in the thread grooves 75.

[0046] Through this design, when the strap 62 is inserted into the first mounting groove 61, the position of the bolt 73 needs to be aligned with the thread groove 75, and then the rotating rod 72 is pushed and rotated so that the rotating rod 72 pushes the bolt 73 to extend out from the inside of the bolt groove 71 and rotate to engage into the inside of the thread groove 75. The thread groove 75 cooperates with the bolt 73 to connect the strap 62 and the rotating ring 64 together, thereby achieving the purpose of improving the stability of the connection between the strap 62 and the rotating ring 64.

[0047] In other embodiments, a first spring 74 is wound around the surface of the bolt 73 , one end of the first spring 74 is connected to the inner wall surface of the bolt slot 71 , and the other end is attached to the outer wall surface of the bolt 73 ;

[0048] Through this design, the bolt 73 can be automatically retracted into the bolt groove 71 by utilizing the elasticity of the first spring 74 when idle, thereby protecting the bolt 73 through the bolt groove 71 while preventing the protruding bolt 73 from obstructing the installation of the strap 62. Moreover, since the first spring 74 is in contact with the surface of the bolt 73, it does not affect the normal rotation of the bolt 73.

[0049] In other embodiments, a plurality of grooves are formed around the outer end surface of the rotating rod 72 at equal intervals;

[0050] Through this design, when the staff rotates the rotating rod 72, their fingers can sink into the grooves provided on the surface of the rotating rod 72, and the contact area between the fingers and the rotating rod 72 is increased, thereby increasing the friction generated when the rotating rod 72 is rotated, thereby preventing slipping.

[0051] In other embodiments, a driving mechanism is provided on the inner surface of the strap 62. The driving mechanism includes second mounting grooves 81 equidistantly arranged around the inner surface of the strap 62. A rotating shaft 82 is fixedly mounted inside the second mounting groove 81. Fan blades 83 are sleeved on the surface of the rotating shaft 82. The fan blades 83 are connected to the rotating shaft 82 through a limiting mechanism. The ends of the fan blades 83 on the side away from the rotating shaft 82 are all inclined.

[0052] During the process of the two sets of condenser inlet and outlet pipes 4 sucking in air and discharging exhaust gas, the gas passes through the fan blades 83 during the suction and discharge process, and the fan blades 83 drive the rotating shaft 82 to rotate. The rotating shaft 82 drives the strap 62 to rotate through the second mounting groove 81, so that the strap 62 drives the rotating ring 64 to rotate under the restriction of the rotating groove 63 through the bolts 73 and the threaded groove 75, and the inlet and outlet pipe sieve plate 5 can rotate, thereby achieving the goal of making the inlet and outlet pipe sieve plate 5 rotate by itself and making all its areas fully participate in the filtration process, thereby improving the stability of the device.

[0053] The limiting mechanism includes spring slots 84 equidistantly arranged around the outer wall of the rotating shaft 82, and a limiting pin 86 is provided through the outer surface of the spring slot 84. One end of a second spring 85 is connected to the inner wall of the spring slot 84, and the other end of the second spring 85 is connected to the inner end surface of the limiting pin 86.

[0054] The fan blade 83 is sleeved on the inner wall surface of the surface portion of the rotating shaft 82, and limit grooves 87 are equidistantly formed around the inner wall surface. The limit pins 86 can be inserted into the limit grooves 87. The outer ends of the limit pins 86 are all configured to be arc-shaped, and the limit grooves 87 are all configured to be arc-shaped grooves that cooperate with the limit pins 86. Through this design, when the outer ends of the limit pins 86 are subjected to an external force with a specific arc angle, the limit pins 86 can be displaced and moved out of the limit grooves 87, thereby achieving the purpose of releasing the limit pins 86 and the limit grooves 87 from restricting the position of the fan blade 83.

[0055] When the fan blade 83 needs to be installed, the fan blade 83 is sleeved on the surface of the rotating shaft 82. The limit pin 86 is squeezed by the inner wall of the fan blade 83 and retracted into the spring groove 84 and squeezes the second spring 85. The second spring 85 produces elastic deformation. After the fan blade 83 is fully sleeved to the specified position, the limit pin 86 is no longer squeezed. The elastic deformation of the second spring 85 is restored and pushes the limit pin 86 to pop out from the spring groove 84. The limit pin 86 can be inserted into the limit groove 87 opened on the inner wall of the fan blade 83. The limit pin 86 cooperates with the limit groove 87 to fix the position of the fan blade 83, and the installation of the fan blade 83 is completed.

[0056] In other embodiments, an adjustment structure is connected between the fan blade 83 and the inlet and outlet sieve plates 5, and the adjustment structure includes a gear 91 sleeved on the surface of the fan blade 83, and the gear 91 is located inside the second mounting groove 81;

[0057] The surface of the inlet and outlet sieve plate 5 is provided with an arc-shaped adjustment hole 93, the outer surface of the inlet and outlet sieve plate 5 is fitted with an adjustment ring 94, and the inner surface of the inlet and outlet sieve plate 5 is fitted with a gear ring 92. A connecting rod is provided between the gear ring 92 and the adjustment ring 94 and passes through the adjustment hole 93;

[0058] The gear ring 92 is meshed with each gear 91 respectively;

[0059] The blade 83 is then forced to rotate by the gear 91 in the second mounting slot 81 and the gear 91 drives the fan blade 83 to rotate. The fan blade 83 passes through the limit slot 87 and squeezes the limit pin 86 and retracts it into the spring slot 84. The limit pin 86 and the limit slot 87 temporarily release the restriction on the fan blade 83 and the fan blade 83 can rotate on the surface of the rotating shaft 82. After rotating to a specified angle, the second spring 85 elastically recovers its deformation and pushes the limit pin 86 to insert into the other limit slot 87. The limit pin 86 cooperates with the other limit slot 87 to limit the fan blade 83. The angle adjustment of the fan blade 83 is completed. The staff can adjust the inclination angle of the fan blade 83 according to the exhaust and suction flow of the condenser inlet and outlet pipes 4. The larger the flow, the smaller the inclination angle, so as to avoid the problem of excessive rotation of the inlet and outlet pipe sieve plate 5 when the flow is large.

[0060] The assembly method of the condenser for the steam turbine unit is as follows:

[0061] S1. Push the adjusting ring 94, causing the adjusting ring 94 to rotate the gear ring 92 via the connecting rod. The gear ring 92 drives the fan blade 83 to rotate on the surface of the rotating shaft 82 via the gear 91, so that the inclination of the fan blade 83 is adjusted to a suitable angle. After the adjustment is completed, the limit pin 86 is reinserted into the other limit groove 87 under the push of the second spring 85, and the fan blade 83 is fixed.

[0062] S2. Move the inlet and outlet sieve plate 5 so that it drives the fan blades 83 to insert into the condenser inlet and outlet sieve plate 5, and at the same time drives the strap 62 to fit into the first mounting groove 61 and fit into the outer wall of the threaded groove 75;

[0063] S3. Rotate and push the rotating rod 72, so that the bolt 73 drives the bolt 73 to move inside the bolt groove 71 and squeeze the first spring 74. The first spring 74 is elastically deformed by the squeezing of the bolt 73, so that the bolt 73 can extend from the bolt groove 71 and rotate to fit into the thread groove 75. The inlet and outlet sieve plates 5 are fixed.

[0064] S4. When the steam turbine unit body 2 and the condenser body 3 start working, the two condenser inlet and outlet pipes 4 respectively inhale air and discharge exhaust gas. During the inhalation and discharge process, the gas passes through the fan blades 83 and drives the rotating shaft 82 to rotate. The rotating shaft 82 drives the strap plate 62 to rotate through the second mounting groove 81. The strap plate 62 drives the rotating ring 64 to rotate within the restriction of the rotating groove 63 through the bolts 73 and the threaded groove 75. The inlet and outlet sieve plates 5 can rotate, and the airflow fully contacts the rotating inlet and outlet sieve plates 5 to improve the filtering effect.

[0065] S5. When the inlet and outlet sieve plates 5 need to be replaced, the lock between the bolts 73 and the threaded grooves 75 is released by rotating the rotating rod 72 in the opposite direction, and the connection between the rotating ring 64 and the strap 62 is released. The inlet and outlet sieve plates 5 can then be removed and replaced.

[0066] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0067] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned implementation rules. The above-mentioned implementation rules and description are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A condenser for use with a steam turbine unit, comprising a base (1), a steam turbine unit body (2), a condenser body (3) and condenser inlet and outlet pipes (4), wherein the condenser body (3) is fixedly mounted on the top of the base (1), and the steam turbine unit body (2) is connected to the top of the condenser body (3) via a pipe, and two sets of condenser inlet and outlet pipes (4) are fixedly mounted on one side surface of the condenser body (3), characterized in that: The surfaces of the two groups of condenser inlet and outlet pipes (4) are both provided with a first mounting groove (61), and an inlet and outlet pipe sieve plate (5) is inserted into the first mounting groove (61). The outer wall of the inlet and outlet pipe sieve plate (5) is integrally formed with an annular strap plate (62), and the outer wall of the strap plate (62) can be tightly fitted with the inner wall of the first mounting groove (61). The first mounting groove (61) is connected to the strap plate (62) through a rotating mechanism. The inner surface of the strap (62) is provided with a driving mechanism, the driving mechanism comprising a second mounting groove (81) equidistantly arranged around the inner surface of the strap (62), and a rotating shaft (82) is fixedly installed inside the second mounting groove (81), and a fan blade (83) is sleeved on the surface of the rotating shaft (82), and the fan blade (83) is connected to the rotating shaft (82) through a limiting mechanism, and the ends of the fan blade (83) away from the rotating shaft (82) are all inclined.

2. The condenser for a steam turbine unit according to claim 1, characterized in that: The rotating mechanism comprises an annular rotating groove (63) formed on the inner wall surface of the first mounting groove (61), and a rotating ring (64) is rotatably provided inside the rotating groove (63). The rotating ring (64) is connected to the strap (62) via a locking mechanism.

3. The condenser for a steam turbine unit according to claim 2, characterized in that: A guide rail (65) is integrally formed on one side of the inner wall of the rotating groove (63), and an annular fitting groove (66) is provided on the outer wall of the rotating ring (64) close to the guide rail (65), and the fitting groove (66) is fitted on the surface of the guide rail (65). A plurality of groups of rolling balls (67) are equidistantly embedded on both sides of the outer wall of the guide rail (65), and the outer walls of the balls (67) are tightly fitted with the inner wall surface of the fitting groove (66).

4. The condenser for a steam turbine unit according to claim 3, characterized in that: The locking mechanism comprises a plurality of bolt slots (71) equidistantly arranged on the outer wall surface of the strap (62), and a rotating rod (72) is provided through the outer surface of the bolt slot (71), and a bolt (73) is integrally formed at the inner end of the rotating rod (72); The outer surface of the rotating ring (64) is equidistantly provided with thread grooves (75) having the same number as the bolts (73), and the thread grooves (75) penetrate the outer surface of the rotating groove (63), so that the bolts (73) can be rotatably engaged in the thread grooves (75).

5. The condenser for a steam turbine unit according to claim 4, characterized in that: A first spring (74) is wound around the surface of the bolt (73), one end of the first spring (74) is connected to the inner wall surface of the bolt groove (71), and the other end is fitted on the outer wall surface of the bolt (73).

6. The condenser for a steam turbine unit according to claim 5, characterized in that: The outer end surface of the rotating rod (72) is equidistantly surrounded by a plurality of groups of grooves.

7. The condenser for a steam turbine unit according to claim 6, characterized in that: The limiting mechanism includes spring grooves (84) equidistantly arranged on the outer wall surface of the rotating shaft (82), and a limiting pin (86) is provided through the outer surface of the spring groove (84), one end of a second spring (85) is connected to the inner wall of the spring groove (84), and the other end of the second spring (85) is connected to the inner end surface of the limiting pin (86); The fan blades (83) are sleeved on the inner wall surface of the surface portion of the rotating shaft (82), and limit grooves (87) are equidistantly arranged around the inner wall surface, and the limit pins (86) can be inserted into the limit grooves (87).

8. The condenser for a steam turbine unit according to claim 7, characterized in that: An adjustment structure is connected between the fan blade (83) and the inlet and outlet air pipe sieve plate (5), and the adjustment structure includes a gear (91) sleeved on the surface of the fan blade (83), and the gear (91) is located inside the second installation groove (81); The surface of the inlet and outlet sieve plate (5) is provided with an arc-shaped adjustment hole (93), the outer surface of the inlet and outlet sieve plate (5) is fitted with an adjustment ring (94), the inner surface of the inlet and outlet sieve plate (5) is fitted with a gear ring (92), and a connecting rod is provided between the gear ring (92) and the adjustment ring (94) and passes through the adjustment hole (93); The gear ring (92) is meshed with each gear (91) respectively.

9. The method for assembling a condenser for a steam turbine unit according to claim 8, characterized in that: S1. Push the adjusting ring (94) so ​​that the adjusting ring (94) drives the gear ring (92) to rotate through the connecting rod. The gear ring (92) drives the fan blade (83) to rotate on the surface of the rotating shaft (82) through the gear (91), so that the inclination of the fan blade (83) is adjusted to a suitable angle. After the adjustment is completed, the limit pin (86) is reinserted into the other limit groove (87) under the push of the second spring (85), and the fan blade (83) is fixed; S2. Move the inlet and outlet sieve plate (5) so that the inlet and outlet sieve plate (5) drives the fan blade (83) to be inserted into the condenser inlet and outlet sieve (4), and at the same time drives the strap plate (62) to be embedded in the first installation groove (61) and to fit with the outer wall of the threaded groove (75); S3, rotate and push the rotating rod (72), so that the bolt (73) drives the bolt (73) to move inside the bolt groove (71) and squeeze the first spring (74), and the first spring (74) is elastically deformed due to the squeezing of the bolt (73), so that the bolt (73) can extend from the inside of the bolt groove (71) and rotate to embed into the inside of the thread groove (75), and the inlet and outlet sieve plates (5) are fixed; S4. When the steam turbine unit body (2) and the condenser body (3) start to work, the two condenser inlet and outlet pipes (4) respectively inhale air and discharge exhaust gas. During the inhalation and discharge process, the gas passes through the fan blades (83) and drives the rotating shaft (82) to rotate through the fan blades (83). The rotating shaft (82) drives the strap plate (62) to rotate through the second mounting groove (81), so that the strap plate (62) drives the rotating ring (64) to rotate under the restriction of the rotating groove (63) through the bolts (73) and the threaded groove (75). The inlet and outlet pipe sieve plates (5) can rotate, and the air flow fully contacts the rotating inlet and outlet pipe sieve plates (5) to improve the filtering effect. S5. When the inlet and outlet sieve plates (5) need to be replaced, the locking between the bolts (73) and the threaded grooves (75) is released by rotating the rotating rod (72) in the opposite direction, and the connection between the rotating ring (64) and the strap (62) is released, so that the inlet and outlet sieve plates (5) can be removed and replaced.

Images