Axial steam admission condenser

Abstract

The utility model relates to the technical field of condensing equipment, in particular to an axial steam admission condenser which comprises a condenser outer pipe, a connecting flange is formed at the end of the condenser outer pipe, and a condensing pipe fixing plate used for fixing a condensing pipe in the condenser outer pipe is installed on the surface of the connecting flange through bolts. A plurality of sets of limiting holes are formed in the edge of the connecting flange, alignment holes matched with the limiting holes are formed in the edge of the condensing pipe fixing plate, a sliding sleeve is arranged on the back of each set of limiting holes, and a butt joint rod used for supporting and guiding the connecting flange is arranged in each sliding sleeve in a sleeved mode. The end of the butt joint rod transversely moves along the sliding sleeve, penetrates through and extends out of the limiting hole and is used for being in butt joint with the limiting hole in the steam condensing pipe fixing plate, and the steam condensing pipe fixing plate is guided to be attached to the connecting flange.

Description

Technical Field

[0001] The utility model relates to the technical field of condensing equipment, in particular to an axial steam inlet condenser. Background Art

[0002] The condenser is a heat exchanger that condenses the exhaust steam of the steam turbine into water. It is mainly used in steam turbine power plants and is generally divided into two types: water condenser and air condenser.

[0003] During the installation of the condenser, plate-shaped brackets for supporting the condenser pipe need to be installed at both ends of the condenser main pipe. The condenser pipe is fixed and limited by the plate-shaped brackets. The traditional installation method is hoisting, which involves first hoisting the bracket and then gradually adjusting the position until the bracket is aligned with the pipe and then fitting it together. In actual operation, this method is difficult to install and connect due to the operating precision of the hoisting equipment. Therefore, an axial steam inlet condenser is proposed to solve the above problem. Utility Model Content

[0004] In order to solve the technical problems existing in the above-mentioned prior art, the utility model provides an axial steam inlet condenser.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an axial steam inlet condenser, comprising a condenser outer tube, a connecting flange formed at the end of the condenser outer tube, a condenser tube fixing plate for fixing a condenser tube in the condenser outer tube is installed on the surface of the connecting flange by bolts, a plurality of groups of limiting holes are opened at the edge of the connecting flange, and alignment holes matching with the limiting holes are opened at the edge of the condenser tube fixing plate, a sliding sleeve is arranged at the back of each group of limiting holes, and a docking rod for supporting and guiding the connecting flange is sleeved inside the sliding sleeve;

[0006] The end of the docking rod moves transversely along the sliding sleeve and extends to the outside of the limiting hole, so as to dock with the limiting hole on the condenser pipe fixing plate and guide the condenser pipe fixing plate to fit with the connecting flange.

[0007] Preferably, a condenser pipe for steam condensation is arranged inside the outer tube of the condenser, and a plurality of groups of connecting through holes for cooperating with the condenser pipe are opened on the surface of the condenser pipe fixing plate.

[0008] Preferably, several groups of the limiting holes are arranged at equal intervals on the edge of the connecting flange, and the alignment holes matching the limiting holes are synchronously arranged at equal intervals on the edge of the condenser pipe fixing plate. The number of the limiting holes and the alignment holes is consistent, and a group of limiting holes and a group of alignment holes form a corresponding group.

[0009] Preferably, the diameter of the alignment hole is smaller than the diameter of the limiting hole, and the limiting hole and the alignment hole belonging to a corresponding group are coaxial.

[0010] Preferably, the total length of the docking rod is longer than the sum of the lengths of the limiting hole, the alignment hole and the sliding sleeve, and the outer wall of the docking rod fits with the inner wall of the sliding sleeve.

[0011] Preferably, the docking rod includes a sliding rod and an alignment rod, the sliding rod is sleeved inside the sliding sleeve, the alignment rod is arranged at the end of the sliding rod, the diameter of the alignment rod is consistent with the inner diameter of the alignment hole, and the end of the alignment rod is rounded to match the alignment hole.

[0012] Preferably, a linkage ring is fixed between the ends of the plurality of groups of alignment insertion rods, and the linkage ring is in a ring shape that matches the connecting flange.

[0013] Preferably, the outer sleeves of the plurality of groups of the sliding sleeves are provided with springs, and the two ends of the springs are respectively connected to the connecting flange and the linkage ring.

[0014] Compared with the prior art, the utility model provides an axial steam inlet condenser, which has the following beneficial effects:

[0015] The utility model proposes an axial steam inlet condenser, the end of the docking rod is laterally moved along the sliding sleeve, passed through and extended to the outside of the limiting hole, the alignment hole on the connecting flange is aligned with the docking rod and connected, and after the connection, the condenser pipe fixing plate corresponds to the connecting flange, and the condenser pipe fixing plate can be gradually approached to the connecting flange under the support of the docking rod by slowly pushing the condenser pipe fixing plate to complete the installation. This method is connected by a pre-positioning method, and there is no need to fully connect the condenser pipe fixing plate with the condenser pipe inside the condenser outer tube during the lifting process, thereby improving the convenience of docking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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:

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure in the embodiment;

[0018] Figure 2 It is a schematic diagram of a three-dimensional unfolded structure in an embodiment;

[0019] Figure 3 It is a schematic diagram of a local three-dimensional explosion structure in the embodiment;

[0020] Figure 4 Schematic diagram of the docking rod structure in the embodiment.

[0021] In the figure: 1. condenser outer tube; 2. connecting flange; 3. condenser tube fixing plate; 4. limiting hole; 5. alignment hole; 6. sliding sleeve; 7. docking rod; 71. sliding rod; 72. alignment plug rod; 8. linkage ring; 9. spring. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the utility model.

[0023] like Figure 1-4 As shown, this embodiment proposes an axial steam inlet condenser, including a condenser outer tube 1, a connecting flange 2 is formed at the end of the condenser outer tube 1, a condenser tube fixing plate 3 for fixing the condenser tube in the condenser outer tube 1 is installed on the surface of the connecting flange 2 by bolts, a condenser tube for steam condensation is arranged inside the condenser outer tube 1, a plurality of connecting through holes for matching with the condenser tube are opened on the surface of the condenser tube fixing plate 3, a plurality of limiting holes 4 are opened at the edge of the connecting flange 2, and a positioning hole 5 matching with the limiting hole 4 is opened at the edge of the condenser tube fixing plate 3, a sliding sleeve 6 is arranged on the back of each group of limiting holes 4, and a docking rod 7 for supporting and guiding the connecting flange 2 is sleeved inside the sliding sleeve 6;

[0024] The end of the docking rod 7 moves horizontally along the sliding sleeve 6 and extends to the outside of the limiting hole 4. When connecting, the condenser pipe fixing plate 3 is hoisted to the front side of the connecting flange 2 by hoisting, and the alignment hole 5 on the connecting flange 2 is aligned with the alignment plug rod 72 and connected. After the connection, the docking rod 7 supports the condenser pipe fixing plate 3 through the alignment hole 5. At this time, the condenser pipe fixing plate 3 corresponds to the connecting flange 2. Slowly pushing the condenser pipe fixing plate 3 can make the condenser pipe fixing plate 3 gradually approach the connecting flange 2 under the support of the docking rod 7 until the condenser pipe fixing plate 3 contacts the connecting flange 2. At this time, the connecting through hole on the condenser pipe fixing plate 3 completely corresponds to the condenser, and the installation is completed.

[0025] Several groups of limiting holes 4 are arranged at equal intervals on the edge of the connecting flange 2, and the alignment holes 5 cooperating with the limiting holes 4 are synchronously arranged at equal intervals on the edge of the condenser pipe fixing plate 3. The number of limiting holes 4 and alignment holes 5 is consistent. One group of limiting holes 4 and one group of alignment holes 5 form a corresponding group. The aperture of the alignment hole 5 is smaller than the aperture of the limiting hole 4. The limiting holes 4 and the alignment holes 5 belonging to a corresponding group are coaxial. When connecting, the sliding sleeve 6 connected to the limiting hole 4 and the docking rod 7 arranged inside the sliding sleeve 6 can accurately align with the alignment hole 5, and an embedded connection structure can be formed after connection.

[0026] The total length of the docking rod 7 is longer than the sum of the lengths of the limiting hole 4, the alignment hole 5 and the sliding sleeve 6, so that the docking rod 7 can be extended by a sufficient distance in the limiting hole 4, and the outer wall of the docking rod 7 is in contact with the inner wall of the sliding sleeve 6. The docking rod 7 includes a sliding rod 71 and an alignment plug rod 72. The sliding rod 71 is sleeved inside the sliding sleeve 6, and the sliding rod 71 cooperates with the sliding sleeve 6 to form a sliding structure to adjust the position of the alignment plug rod 72. The alignment plug rod 72 is arranged at the end of the sliding rod 71. The diameter of the alignment plug rod 72 is consistent with the inner diameter of the alignment hole 5. The alignment plug rod 72 on the condenser pipe fixing plate 3 is consistent with the inner diameter of the alignment hole 5. After the positioning hole 5 is docked with the alignment rod 72, the alignment rod 72 can cooperate with the positioning hole 5 to support the condenser pipe fixing plate 3, thereby realizing the pre-setting of the position of the condenser pipe fixing plate 3. The end of the positioning rod 72 is rounded to cooperate with the positioning hole 5, and the rounded alignment rod 72 can enter the positioning hole 5 more smoothly. At the same time, since the aperture of the positioning hole 5 is smaller than the aperture of the limiting hole 4, during disassembly, the sliding rod 71 can push the positioning hole 5 to drive the condenser pipe fixing plate 3 to move horizontally, so as to facilitate the separation of the condenser pipe fixing plate 3 and the connecting flange 2.

[0027] A linkage ring 8 is fixed between the ends of several groups of sliding rods 71. The linkage ring 8 is annular and matches the connecting flange 2. When one group of sliding rods 71 ​​is pushed, the linkage ring 8 can synchronously drive the remaining sliding rods 71 ​​to move synchronously, thereby ensuring the synchronization of docking.

[0028] A spring 9 is provided on the outer side of several groups of sliding sleeves 6, and the two ends of the spring 9 are respectively connected to the connecting flange 2 and the linkage ring 8. When the condenser pipe fixing plate 3 is moved away from the connecting flange 2, the spring 9 can pull the linkage ring 8 by its own elastic force to make the linkage ring 8 move toward the connecting flange 2. The movement of the linkage ring 8 will push the docking rod 7 to make the docking rod 7 move horizontally along the sliding sleeve 6, so that the docking rod 7 extends out from the sliding sleeve 6, which is convenient for the subsequent alignment of the condenser pipe fixing plate 3 with the connecting flange 2 through the alignment hole 5.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0030] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 claims and their equivalents.

Claims

1. An axial steam inlet condenser, characterized in that: The invention comprises a condenser outer tube (1), a connecting flange (2) is formed at the end of the condenser outer tube (1), a condenser tube fixing plate (3) for fixing the condenser tube inside the condenser outer tube (1) is installed on the surface of the connecting flange (2) by bolts, a plurality of groups of limiting holes (4) are opened at the edge of the connecting flange (2), and alignment holes (5) matching with the limiting holes (4) are opened at the edge of the condenser tube fixing plate (3), a sliding sleeve (6) is arranged at the back of each group of limiting holes (4), and a connecting rod (7) for supporting and guiding the connecting flange (2) is sleeved inside the sliding sleeve (6); The end of the docking rod (7) moves transversely along the sliding sleeve (6) and extends to the outside of the limiting hole (4) to dock with the limiting hole (4) on the condenser pipe fixing plate (3) and guide the condenser pipe fixing plate (3) to fit with the connecting flange (2).

2. The axial steam inlet condenser according to claim 1, characterized in that: A condenser pipe for steam condensation is arranged inside the condenser outer pipe (1), and a plurality of groups of connection through holes for cooperating with the condenser pipe are provided on the surface of the condenser pipe fixing plate (3).

3. The axial steam inlet condenser according to claim 2, characterized in that: A plurality of groups of the limiting holes (4) are arranged at equal intervals on the edge of the connecting flange (2), and the alignment holes (5) matched with the limiting holes (4) are synchronously arranged at equal intervals on the edge of the condenser pipe fixing plate (3), the number of the limiting holes (4) and the alignment holes (5) are consistent, and a group of the limiting holes (4) and a group of the alignment holes (5) form a corresponding group.

4. The axial steam inlet condenser according to claim 3, characterized in that: The diameter of the alignment hole (5) is smaller than the diameter of the limiting hole (4), and the limiting hole (4) and the alignment hole (5) belonging to a corresponding group are coaxial.

5. The axial steam inlet condenser according to claim 1, characterized in that: The total length of the docking rod (7) is longer than the sum of the lengths of the limiting hole (4), the alignment hole (5) and the sliding sleeve (6), and the outer wall of the docking rod (7) fits the inner wall of the sliding sleeve (6).

6. The axial steam inlet condenser according to claim 5, characterized in that: The docking rod (7) comprises a sliding rod (71) and an alignment rod (72); the sliding rod (71) is sleeved inside the sliding sleeve (6); the alignment rod (72) is arranged at the end of the sliding rod (71); the diameter of the alignment rod (72) is consistent with the inner diameter of the alignment hole (5); and the end of the alignment rod (72) is rounded to match the alignment hole (5).

7. The axial steam inlet condenser according to claim 6, characterized in that: A linkage ring (8) is fixed between the ends of a plurality of groups of alignment insertion rods (72), and the linkage ring (8) is in a ring shape that matches the connecting flange (2).

8. The axial steam inlet condenser according to claim 1, characterized in that: The outer sleeves of the plurality of groups of sliding sleeves (6) are provided with springs (9), and the two ends of the springs (9) are respectively connected to the connecting flange (2) and the linkage ring (8).

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