Condensing device of combined heat and power generation steam turbine

Abstract

The utility model discloses a combined heat and power generation steam turbine condensing device which comprises a shell, an air inlet pipe arranged at the top of the shell, a discharge pipe arranged at the bottom of the shell, a cooling water inlet pipe arranged on one side of the shell, a cooling water outlet pipe arranged on the other side of the shell, a cooling bin arranged in the shell, and a plurality of sets of cooling pipes arranged in the cooling bin. A filtering mechanism is arranged in the discharging pipe and comprises a filtering plate, the filtering plate is tightly connected with a fixing support in a press fit mode, a fixing plate is arranged in the fixing support and fixedly connected with a sliding rod, a spring is arranged on the outer side of the sliding rod, and the fixing plate tightly presses the filtering plate; in order to solve the problems of influence on normal operation of the device and increase of maintenance cost due to frequent shutdown for cleaning or replacing a filter screen in the prior art, a filter mechanism is arranged in a discharge pipe, so that a filter plate can be fixed under certain pressure, and meanwhile, the filter plate can be cleaned or replaced without shutdown; and the influence of frequent shutdown maintenance on the normal operation of the device is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steam turbine condensing devices, in particular to a cogeneration steam turbine condensing device. Background Art

[0002] In the cogeneration system, the steam turbine is one of the core equipment, and its performance directly affects the operating efficiency and stability of the entire system. The condensing device of the steam turbine is an important component of it, which is responsible for condensing the steam discharged from the steam turbine into water for recycling. The condensing device usually adopts water cooling to condense the steam through a large amount of cooling water. During the operation of the existing condensing device, when the steam enters the condensing device, since the condensing device is generally equipped with a filter screen inside, and the filter screen cannot be effectively observed, the staff needs to shut down the device regularly for cleaning. There are problems: frequent shutdowns to clean or replace the filter screen will affect the normal operation of the device and increase maintenance costs.

[0003] In view of this, we propose a cogeneration steam turbine condensing device. Utility Model Content

[0004] The utility model aims to provide a cogeneration steam turbine condensing device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cogeneration steam turbine condensing device, comprising an outer shell, an air inlet pipe is provided on the top of the outer shell, an exhaust pipe is provided on the bottom of the outer shell, a cooling water inlet pipe is provided on one side of the outer shell, a cooling water outlet pipe is provided on the other side of the outer shell, a cooling bin is provided inside the outer shell, a plurality of groups of cooling pipes are provided inside the cooling bin, a filtering mechanism is provided inside the exhaust pipe, the filtering mechanism comprises a filter plate, the filter plate is tightly pressed and connected to a fixed bracket, a fixed plate is provided inside the fixed bracket, the fixed plate is fixedly connected to a sliding rod, a spring is provided on the outside of the sliding rod, and the fixed plate is tightly pressed against the filter plate.

[0006] Preferably, a sealing port for removing and installing the filter plate is provided on one side of the discharge pipe, a sealing plate is provided inside the sealing port, and the sealing plate is tightly pressed against one side of the filter plate.

[0007] Preferably, the fixing plate is composed of an arc plate and an arc-shaped plate, a thread groove is provided inside the arc plate, the thread groove is threadedly connected to the sliding rod, the fixing plate is slidably connected to the inside of the fixing bracket, and the internal space of the fixing plate can accommodate two filter plates and one fixing plate.

[0008] Preferably, one end of the spring is tightly pressed and connected to one end of the sliding rod, and the other end of the spring is tightly pressed and fixed to the top of the bracket.

[0009] Preferably, one side of one end of the sliding rod passes through the spring and the fixed bracket and is fixedly connected to the fixed plate.

[0010] Preferably, the multiple groups of cooling tubes are distributed in an array and fixedly connected to the cooling bin, one end of the multiple groups of cooling tubes is fixedly connected to the cooling water inlet pipe, and the other end of the multiple groups of cooling tubes is fixedly connected to the cooling water outlet pipe.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model provides a filtering mechanism inside the discharge pipe, the filtering mechanism includes a filter plate, the filter plate can effectively intercept and filter impurities and particulate matter in the condensed water, the filter plate is tightly pressed and connected to the fixed bracket to ensure its stability and sealing during operation, a fixed plate is provided inside the fixed bracket, the fixed plate is fixedly connected to the sliding rod, a spring is provided on the outer side of the sliding rod, so that the filter plate can be fixed when subjected to a certain pressure, thereby better meeting the filtering needs of impurities, and at the same time, the filter plate can be cleaned or replaced without stopping the machine, avoiding the influence of frequent shutdowns for maintenance on the normal operation of the device.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0016] Figure 2 This is a cross-sectional view of the filter mechanism structure in the utility model;

[0017] Figure 3 This is a cross-sectional view of the fixed plate structure in the utility model;

[0018] Figure 4 It is a cross-sectional view of the overall structure of the utility model;

[0019] In the figure: 1, shell; 2, air inlet pipe; 3, exhaust pipe; 4, cooling water inlet pipe; 5, cooling water outlet pipe; 6, cooling bin; 7, cooling pipe; 8, filtering mechanism; 301, sealing port; 302, sealing plate; 601, fixing rod; 602, tilting plate; 801, filtering plate; 802, fixing bracket; 803, fixing plate; 804, sliding rod; 805, spring; 806, arc plate; 807, arc plate; 808, threaded groove. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0023] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0024] Example

[0025] like Figures 1 to 4As shown, it is a structural schematic diagram of a cogeneration steam turbine condensing device in a preferred embodiment of the utility model, a shell 1 of this embodiment, an air inlet pipe 2 is provided on the top of the shell 1, a discharge pipe 3 is provided at the bottom of the shell 1, a cooling water inlet pipe 4 is provided on one side of the shell 1, and a cooling water outlet pipe 5 is provided on the other side of the shell 1. A cooling bin 6 is provided inside the shell 1, and a plurality of cooling pipes 7 are provided inside the cooling bin 6. A filter mechanism 8 is provided inside the discharge pipe 3. The filter mechanism 8 includes a filter plate 801, and the filter plate 801 is tightly pressed and connected to a fixed bracket 802. A fixed plate 803 is provided inside the fixed bracket 802, and the fixed plate 803 is fixedly connected to a sliding rod 804. A spring is provided on the outside of the sliding rod 804 805, the fixed plate 803 is tightly pressed against the filter plate 801. The utility model is provided with a filter mechanism inside the discharge pipe. The filter mechanism includes a filter plate. The filter plate can effectively intercept and filter impurities and particulate matter in the condensed water. The filter plate is tightly pressed and connected to the fixed bracket to ensure its stability and sealing during operation. A fixed plate is provided inside the fixed bracket, and the fixed plate is fixedly connected to the sliding rod. A spring is provided on the outside of the sliding rod, so that the filter plate can be fixed when subjected to a certain pressure, so as to better meet the filtering needs of impurities. At the same time, the filter plate can be cleaned or replaced without stopping the machine, avoiding the influence of frequent shutdowns for maintenance on the normal operation of the device.

[0026] It should be noted that a sealing port 301 is opened on one side of the discharge pipe 3 for removing and installing the filter plate 801, and a sealing plate 302 is arranged inside the sealing port 301. The sealing plate 302 is tightly pressed against one side of the filter plate 801. By opening a sealing port on one side of the discharge pipe and providing an internal sealing plate structure, it not only facilitates the removal and installation of the filter plate, but also ensures the efficient and stable operation of the condensing device, while reducing the maintenance cost and work intensity.

[0027] It should be noted that the fixed plate 803 is composed of an arc plate 806 and an arc plate 807. A threaded groove 808 is provided inside the arc plate 806. The threaded groove 808 is threadedly connected to the sliding rod 804. The fixed plate 803 is slidably connected to the inside of the fixed bracket 802. The internal space of the fixed plate 803 can accommodate two filter plates 801 and one fixed plate 803. The internal space of the fixed bracket is cleverly designed to accommodate two filter plates and an additional fixed plate, thereby realizing the rapid installation and disassembly of the filter plates.

[0028] It should be noted that one end of the spring 805 is tightly pressed and connected to one end of the sliding rod 804, and the other end of the spring 805 is tightly pressed and connected to the top of the fixed bracket 802. The spring ensures an effective connection between the sliding rod and the fixed bracket, and also provides convenience for the replacement and maintenance of the filter plate. At the same time, by reducing the generation of vibration and noise, the overall performance and comfort of the condensation device are further improved.

[0029] It should be noted that one end of the sliding rod 804 passes through the spring 805 and the fixed bracket 802, and is fixedly connected to the fixed plate 803. Through this penetrating structure of the sliding rod and the fixed connection method with the fixed plate, the stability and reliability of the filtering mechanism are improved, and strong support is provided for the quick and convenient replacement of the filter plate.

[0030] It should be noted that the multiple groups of cooling pipes 7 are distributed in an array and fixedly connected to the cooling bin 6, one end of the multiple groups of cooling pipes 7 is fixedly connected to the cooling water inlet pipe 4, and the other end of the multiple groups of cooling pipes 7 is fixedly connected to the cooling water outlet pipe 5. The array distribution and fixed connection method of the multiple groups of cooling pipes improve the cooling efficiency because the cooling water can flow quickly and evenly between the multiple cooling pipes and enhance the stability and reliability of the cooling system.

[0031] It should be noted that the steam exhausted by the steam turbine enters the cooling bin through the air inlet pipe. In the cooling bin, the steam exchanges heat with the cooling water in the cooling pipe and is condensed into water. The condensed water is filtered by the filter mechanism and discharged from the device through the discharge pipe. In this process, the cooling water enters the cooling pipe through the cooling water inlet pipe, absorbs heat, and then is discharged from the device through the cooling water outlet pipe, forming a continuous cooling cycle. When the filter plate needs to be replaced, the sealing plate is opened now, and then the new filter plate is placed on the bottom of the old filter plate through the fixing plate, and then the old filter plate is pulled out and the sealing plate is closed.

[0032] 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", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device 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, article or device.

[0033] 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 cogeneration steam turbine condensing device, characterized in that: The invention comprises a shell (1), wherein an air inlet pipe (2) is provided at the top of the shell (1), an exhaust pipe (3) is provided at the bottom of the shell (1), a cooling water inlet pipe (4) is provided at one side of the shell (1), and a cooling water outlet pipe (5) is provided at the other side of the shell (1), a cooling bin (6) is provided inside the shell (1), a plurality of cooling pipes (7) are provided inside the cooling bin (6), a filtering mechanism (8) is provided inside the exhaust pipe (3), and the filtering mechanism (8) comprises a filtering plate (801), the filtering plate (801) is tightly pressed and connected to a fixed bracket (802), a fixing plate (803) is provided inside the fixing bracket (802), the fixing plate (803) is fixedly connected to a sliding rod (804), a spring (805) is provided on the outside of the sliding rod (804), and the fixing plate (803) is tightly pressed and connected to the filtering plate (801).

2. A cogeneration steam turbine condensing device according to claim 1, characterized in that: A sealing opening (301) for removing and installing the filter plate (801) is provided on one side of the discharge pipe (3), a sealing plate (302) is provided inside the sealing opening (301), and the sealing plate (302) is tightly pressed against one side of the filter plate (801).

3. The cogeneration steam turbine condensing device according to claim 1, characterized in that: The fixing plate (803) is composed of a circular arc plate (806) and an arc-shaped plate (807); a thread groove (808) is provided inside the circular arc plate (806); the thread groove (808) is threadedly connected to the sliding rod (804); the fixing plate (803) is slidably connected to the inside of the fixing bracket (802); and the internal space of the fixing plate (803) can accommodate two filter plates (801) and one fixing plate (803).

4. The cogeneration steam turbine condensing device according to claim 1, characterized in that: One end of the spring (805) is tightly pressed and connected to one end of the sliding rod (804), and the other end of the spring (805) is tightly pressed and connected to the top of the fixing bracket (802).

5. A cogeneration steam turbine condensing device according to claim 4, characterized in that: One end of the sliding rod (804) passes through the spring (805) and the fixed bracket (802) and is fixedly connected to the fixed plate (803).

6. The cogeneration steam turbine condensing device according to claim 1, characterized in that: The plurality of groups of cooling pipes (7) are distributed in an array and fixedly connected to the cooling bin (6); one end of the plurality of groups of cooling pipes (7) is fixedly connected to the cooling water inlet pipe (4); and the other end of the plurality of groups of cooling pipes (7) is fixedly connected to the cooling water outlet pipe (5).

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