Water sealing structure for double-screw steam compressor

Abstract

The utility model relates to the technical field of steam compressor sealing structures, in particular to a water sealing structure for a double-screw steam compressor, which comprises a shaft sleeve body, a plurality of groups of ring bodies for water separation are assembled on the peripheral surface of the shaft sleeve body, and a plurality of groups of transverse holes for connection are formed in the peripheral surfaces of the ring bodies; when a water source in the double-screw type steam compressor axially flows along the shaft sleeve body and is close to the ring body on the periphery of the shaft sleeve body, the sponge ring on the inner side of the disc cover installed on the periphery of the ring body can conveniently adsorb water flow, and the situation that the water flow crosses the ring body and flows into the transmission box body is conveniently reduced; and meanwhile, water flow adsorbed in the sponge ring can penetrate through the multiple sets of concave holes in the periphery of the disc cover, the water flow can be released, or a water source in the sponge ring can be evaporated out due to the high temperature in the equipment, and therefore the sealing effect of the sealing structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steam compressor sealing structures, in particular to a water sealing structure for a twin-screw steam compressor. Background Art

[0002] With the development of the domestic environmental protection industry, centrifugal steam compressors are widely used in domestic chemical, energy, and pharmaceutical industries such as evaporation, crystallization, and pipeline boosting. However, the compressor industry is increasingly plagued by steam leakage, water ingress to the transmission housing, emulsification of lubricating oil, failure of bearings and rotor systems, and compressor shutdown. These problems seriously affect the normal operation of steam compressors and their systems, causing great difficulties in production, and restricting the high-quality development of steam compressor manufacturers and even the compressor industry. Patent No. CN202220034015.X discloses a steam and water seal structure for steam compressors. The leakage effect of the leakage ring groove and hole opened on the lower half of the circumference of the tail of the labyrinth seal and the seal body is blocked by the isolation belt on the shaft sleeve. When used in conjunction with the box oil seal that integrates the labyrinth seal and the sealing assembly, water will not be able to flow into the transmission housing. However, when the water-blocking belt on the surface of the shaft sleeve is soaked, some water will follow the traces of water flowing over the water-blocking ribbon, resulting in the phenomenon of axial flow of water. To this end, we propose a water seal structure for a twin-screw steam compressor. Utility Model Content

[0003] In view of the problems in the prior art, the utility model provides a water sealing structure for a twin-screw steam compressor.

[0004] The technical solution adopted by the utility model to solve the technical problem is a water sealing structure for a twin-screw steam compressor, comprising a shaft sleeve body, a ring body for water isolation is assembled on the outer peripheral surface of the shaft sleeve body, and the ring body has multiple groups, a transverse hole for connection is opened on the outer peripheral surface of the ring body, and the transverse hole has multiple groups, both side end surfaces of the outer peripheral of the ring body are assembled with pads that are fitted and connected with the ring body through bolts, and a column for support is integrally constructed at one end of the pad away from the ring body, and the column has multiple groups;

[0005] The end of the column away from the pad is integrally constructed with a screw for connection, and the end of the screw away from the column is inserted with a disc cover for the outer periphery of the sleeve body, and there are two groups of disc covers. A nut body for fastening the disc cover is threadedly installed on the outer periphery of the screw, and sponge rings that are snugly connected to the sleeve body are clamped on the inner sides of the two groups of disc covers. The outer peripheral surface of the disc cover is provided with concave holes, and there are multiple groups of concave holes.

[0006] By adopting the above technical solution, when the water source inside the twin-screw steam compressor flows axially along the shaft sleeve body and approaches the ring body on the outer periphery of the shaft sleeve body, the sponge ring on the inner side of the disc cover installed on the outer periphery of the ring body can easily absorb the water flow, so as to reduce the situation where the water flows over the ring body and flows into the transmission case body. At the same time, the multiple groups of concave holes on the outer periphery of the disc cover can allow the water flow absorbed inside the sponge ring to pass through, so that the water flow can be released, or the water source inside the sponge ring can be evaporated due to the high temperature inside the equipment, thereby improving the sealing effect of the sealing structure;

[0007] When the sponge ring is maintained or replaced, the nut body on the outside of the disc cover can be unscrewed so that the nut body can be screwed together and separated from the screw rod, and the two sets of disc covers can be disassembled, thereby facilitating the disassembly of the sponge ring. The sponge ring is selected to have a ring with a break, which is convenient for replacing the sponge ring without disassembling the shaft sleeve body. At the same time, the gasket cooperates with the transverse holes on the outer periphery of the ring body through bolts, so that the two sets of gaskets can be installed on the outer periphery of the ring body, so that the disc cover supporting the sponge ring can be installed. The installation is simple, so that the disc cover can support the sponge ring, so that the sponge ring can absorb condensed water flowing through the outer periphery of the shaft sleeve body, which is convenient for reducing the condition of condensed water flowing into the transmission case.

[0008] Specifically, a rubber pad located on the outer periphery of the screw rod is clamped on a side of the nut body close to the disc cover.

[0009] By adopting the above technical solution, the rubber pad is convenient for protecting the nut body, thereby reducing the situation of scratches caused by friction between the nut body and the disc cover.

[0010] Specifically, a protective gasket is bonded to one side of the pad close to the ring body.

[0011] By adopting the above technical solution, the gasket is convenient to support the pad, which is convenient for improving the stability of the connection between the pad and the ring body.

[0012] Specifically, the two groups of disk covers have opposite surfaces each provided with an arc groove for connection, and the two groups of disk covers have opposite surfaces each integrally formed with an arc block that fits and connects with the arc groove.

[0013] By adopting the above technical solution, the arc groove and the arc block are fitted and connected with each other, so that the tightness of the two sets of disc covers after connection is improved, so that the water source inside the sponge ring can seep out through the concave holes on the outer surface of the disc cover, which is convenient to reduce the situation of water droplets seeping out from the gap between the two.

[0014] Specifically, the outer peripheral surfaces of the two groups of disc covers are integrally constructed with ear blocks for connection, and there are multiple groups of ear blocks, and fastening screws for connection are installed between the two groups of ear blocks.

[0015] By adopting the above technical solution, the fastening screws and the ear blocks cooperate with each other, which makes it easy to fix the two sets of disc covers after they are connected, so that the two sets of disc covers can be stably connected together.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The technical solution of the present application adopts the design of the ring body, the disc cover, the sponge ring and the recessed holes. When the water source inside the twin-screw steam compressor flows axially along the shaft sleeve body and when it is close to the ring body at the outer periphery of the shaft sleeve body, the sponge ring on the inner side of the disc cover installed at the outer periphery of the ring body can easily adsorb the water flow, so as to reduce the situation where the water flows over the ring body and flows into the inside of the transmission case. At the same time, the multiple groups of recessed holes on the outer periphery of the disc cover can allow the water flow adsorbed inside the sponge ring to pass through, so that the water flow can be released, or the water source inside the sponge ring can be evaporated due to the high temperature inside the equipment, thereby improving the sealing effect of the sealing structure.

[0018] 2. The technical solution of the present application is designed with transverse holes, washers, columns, screws and nut bodies. When the sponge ring is maintained or replaced, the nut body on the outside of the disc cover can be unscrewed so that the nut body can be screwed together and separated from the screw, and the two sets of disc covers can be disassembled, thereby facilitating the disassembly of the sponge ring. The sponge ring is selected to have a ring with a break, which is convenient for replacing the sponge ring without disassembling the sleeve body. At the same time, the washers cooperate with the transverse holes on the outer periphery of the ring body through bolts, which facilitates the installation of the two sets of washers on the outer periphery of the ring body, so that the disc cover for supporting the sponge ring can be installed. The installation is simple, so that the disc cover can support the sponge ring, so that the sponge ring can absorb condensed water flowing through the outer periphery of the sleeve body, which is convenient for reducing the condition of condensed water flowing into the transmission case. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is an axonometric drawing of the utility model;

[0021] Figure 2 This is a schematic diagram of the disc cover structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the pad of the utility model;

[0023] In the figure: 1, sleeve body; 2, ring body; 3, transverse hole; 4, washer; 5, column; 6, screw; 7, disc cover; 8, nut body; 9, sponge ring; 10, concave hole; 11, ear block; 12, fastening screw; 13, gasket; 14, rubber pad; 15, arc groove; 16, arc block. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] See also Figure 1-3 The embodiment of the utility model provides a technical solution: a water sealing structure for a twin-screw steam compressor, comprising a sleeve body 1, a ring body 2 for water isolation is assembled on the outer circumferential surface of the sleeve body 1, and the ring body 2 has multiple groups, a transverse hole 3 for connection is opened on the outer circumferential surface of the ring body 2, and the transverse hole 3 has multiple groups, both side end surfaces of the outer circumference of the ring body 2 are assembled with a pad 4 that is fitted and connected with the ring body 2 through bolts, and the pad 4 is integrally constructed with a column 5 for support at one end away from the ring body 2, and the column 5 has multiple groups; a screw 6 for connection is integrally constructed at one end of the column 5 away from the pad 4, and a disc cover 7 for the outer circumference of the sleeve body 1 is inserted at one end of the screw 6 away from the column 5, and the disc cover 7 has two groups, a nut body 8 for fastening the disc cover 7 is threadedly installed on the outer circumference of the screw 6, and a sponge ring 9 that is fitted and connected with the sleeve body 1 is clamped on the inner side of the two groups of disc covers 7, and a concave hole 10 is opened on the outer circumferential surface of the disc cover 7, and the concave hole 10 has multiple groups.

[0026] When in use, when the water source inside the twin-screw steam compressor flows axially along the shaft sleeve body 1, and when it is close to the ring body 2 on the outer periphery of the shaft sleeve body 1, the sponge ring 9 on the inner side of the disc cover 7 installed on the outer periphery of the ring body 2 is convenient for adsorbing the water flow, so as to reduce the situation that the water flow passes over the ring body 2 and flows into the transmission case. At the same time, the multiple groups of concave holes 10 on the outer periphery of the disc cover 7 can allow the water flow adsorbed inside the sponge ring 9 to pass through, so that the water flow can be released, or the water source inside the sponge ring 9 can be evaporated due to the high temperature inside the equipment, thereby improving the sealing effect of the sealing structure;

[0027] When the sponge ring 9 is maintained or replaced, the nut body 8 on the outside of the disc cover 7 can be unscrewed so that the nut body 8 can be screwed together and separated from the screw rod 6, and the two sets of disc covers 7 can be disassembled, thereby facilitating the disassembly of the sponge ring 9. The sponge ring 9 is selected from a ring with a break, which is convenient for replacing the sponge ring 9 without disassembling the shaft sleeve body 1. At the same time, the pad 4 cooperates with the transverse holes 3 on the outer periphery of the ring body 2 through bolts, so that the two sets of pads 4 can be installed on the outer periphery of the ring body 2, so that the disc cover 7 used to support the sponge ring 9 can be installed. The installation is simple, so that the disc cover 7 can support the sponge ring 9, so that the sponge ring 9 can absorb the condensed water flowing through the outer periphery of the shaft sleeve body 1, which is convenient for reducing the condition of condensed water flowing into the transmission case.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, a rubber pad 14 located on the outer periphery of the screw rod 6 is clamped on one side of the nut body 8 close to the disc cover 7 .

[0029] When in use, the rubber pad 14 is convenient for protecting the nut body 8, thereby reducing the friction between the nut body 8 and the disc cover 7 and causing scratches.

[0030] like Figure 1 and Figure 3 As shown, a protective gasket 13 is bonded to one side of the pad 4 close to the ring body 2 .

[0031] When in use, the gasket 13 is convenient for supporting the washer 4 , so as to improve the stability of the connection between the washer 4 and the ring body 2 .

[0032] like Figure 1 As shown, the two sets of disk covers 7 have arc grooves 15 for connection on one side thereof, and the two sets of disk covers 7 have arc blocks 16 integrally formed on one side thereof to fit and connect with the arc grooves 15 .

[0033] When in use, the arc groove 15 and the arc block 16 are fitted and connected with each other, so that the tightness of the two sets of disc covers 7 after connection is improved, so that the water source inside the sponge ring 9 can seep out along the concave hole 10 on the outer surface of the disc cover 7, which is convenient for reducing the situation of water droplets seeping out from the gap between the two.

[0034] like Figure 1 and Figure 2 As shown, the outer circumferential surfaces of the two groups of disc covers 7 are integrally constructed with ear blocks 11 for connection, and there are multiple groups of ear blocks 11. Fastening screws 12 for connection are installed between the two groups of ear blocks 11.

[0035] When in use, the fastening screws 12 and the ear blocks 11 cooperate with each other to facilitate fixing the two sets of disc covers 7 after connection, so that the two sets of disc covers 7 can be stably connected together.

[0036] The working principle and use process of the utility model are as follows: when in use, first install the corresponding structural components at the appropriate position, when the water source inside the twin-screw steam compressor flows axially along the shaft sleeve body 1, and when it is close to the ring body 2 on the outer periphery of the shaft sleeve body 1, the sponge ring 9 on the inner side of the disc cover 7 installed on the outer periphery of the ring body 2 is convenient for adsorbing the water flow, so as to reduce the situation where the water flow passes over the ring body 2 and flows into the transmission case body, and at the same time, the multiple groups of concave holes 10 on the outer periphery of the disc cover 7 can allow the water flow adsorbed inside the sponge ring 9 to pass through, so that the water flow can be released, or the water source inside the sponge ring 9 can be evaporated due to the high temperature inside the equipment, thereby improving the sealing effect of the sealing structure, and when the sponge ring 9 is regularly maintained or replaced, it can be unscrewed. The nut body 8 on the outside of the disc cover 7 allows the nut body 8 to be screwed and separated from the screw rod 6, and the fastening screws 12 used to fix the two sets of disc covers 7 can be removed, so that the two sets of disc covers 7 can be removed, which facilitates the removal of the sponge ring 9. The sponge ring 9 is selected to have a ring with a fracture, which is convenient for replacing the sponge ring 9 without removing the sleeve body 1. At the same time, the pad 4 cooperates with the transverse hole 3 on the outer periphery of the ring body 2 through bolts, which facilitates the installation of the two sets of pads 4 on the outer periphery of the ring body 2, so that the disc cover 7 used to support the sponge ring 9 can be installed. The installation is simple, so that the disc cover 7 can support the sponge ring 9, so that the sponge ring 9 can absorb the condensed water flowing through the outer periphery of the sleeve body 1, which is convenient for reducing the condition of condensed water flowing into the transmission case.

[0037] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A water sealing structure for a twin-screw steam compressor, characterized in that: The invention comprises a shaft sleeve body (1), wherein the outer peripheral surface of the shaft sleeve body (1) is equipped with a ring body (2) for water isolation, and the ring body (2) has multiple groups, and the outer peripheral surface of the ring body (2) is provided with a transverse hole (3) for connection, and the transverse hole (3) has multiple groups, and the outer peripheral side end surfaces of the ring body (2) are both equipped with a pad (4) that is closely connected to the ring body (2) through bolts, and the pad (4) is integrally constructed with a column (5) for support at one end away from the ring body (2), and the column (5) has multiple groups; The end of the column (5) away from the pad (4) is integrally constructed with a screw rod (6) for connection, and the end of the screw rod (6) away from the column (5) is plugged with a disc cover (7) for the outer periphery of the shaft sleeve body (1), and there are two groups of disc covers (7). The outer periphery of the screw rod (6) is threadedly mounted with a nut body (8) for fastening the disc cover (7), and the inner sides of the two groups of disc covers (7) are both clamped with sponge rings (9) that are closely connected to the shaft sleeve body (1), and the outer peripheral surface of the disc cover (7) is provided with a concave hole (10), and there are multiple groups of concave holes (10).

2. A water sealing structure for a twin-screw steam compressor according to claim 1, characterized in that: A rubber pad (14) located on the outer periphery of the screw rod (6) is clamped on one side of the nut body (8) close to the disc cover (7).

3. A water sealing structure for a twin-screw steam compressor according to claim 1, characterized in that: A protective gasket (13) is bonded to one side of the pad (4) close to the ring body (2).

4. A water sealing structure for a twin-screw steam compressor according to claim 1, characterized in that: The two sets of disk covers (7) have arc grooves (15) for connection on opposite sides, and the two sets of disk covers (7) have arc blocks (16) integrally formed on opposite sides for connection with the arc grooves (15).

5. The water sealing structure for a twin-screw steam compressor according to claim 1, characterized in that: The outer peripheral surfaces of the two groups of disc covers (7) are integrally constructed with ear blocks (11) for connection, and there are multiple groups of ear blocks (11). Fastening screws (12) for connection are installed between the two groups of ear blocks (11).

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