Water supplementing device for heat supply unit of power plant

Abstract

The utility model discloses a water replenishing device for a power plant heat supply unit, which relates to the technical field of power plant heat supply units and comprises a stand column box, a water outlet pipe is fixedly inserted into the upper end of the left side surface of the stand column box, and a water supply pipe is fixedly inserted into the lower end of the right side surface of the stand column box. Two height fixing rods are fixedly connected to the upper surface of the upper disc, the outer surfaces of the height fixing rods are slidably sleeved with the upper end of the stand column box, a lower disc is slidably inserted in the stand column box and located below the upper disc, an inner rod is fixedly connected to the upper surface of the upper disc, and the outer surface of the inner rod is slidably sleeved with the upper disc; according to the water supplementing device for the heat supply unit of the power plant, the inner rod, the upper disc and the lower disc are arranged, when the water supply pipe fills water between the upper disc and the lower disc, water cannot enter the water outlet pipe, the water outlet pipe and the water supply pipe are separated, and when the upper disc moves upwards, water above the upper disc can be pushed into the water outlet pipe to supply water into the heat supply unit; meanwhile, the water outlet pipe is separated from the water supply pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of heating units in power plants, in particular to a water replenishment device for heating units in power plants. Background Art

[0002] In thermal power plants, heating units are used. In addition to supplying electrical energy, they also use the steam turbine that has done work (i.e. generated electricity) to extract or exhaust steam to meet the heat needs of production and life.

[0003] During the operation of the heating unit in a power plant, the hot water heating system is driven by a water pump for circulation. As the water is used, it will be lost and needs to be replenished with a water replenishing device. However, there is a certain pressure inside the heating unit. When the existing water replenishing device adds water to the heating unit, the internal water is easy to leak to the outside, which will pollute the external unused water source. Therefore, a water replenishing device for the heating unit of a power plant is proposed. Utility Model Content

[0004] In view of the problem that the water inside the conventional water heater is easy to leak to the outside and pollute the external unused water source, the present utility model is proposed.

[0005] To solve the above technical problems, the utility model provides the following technical solutions: a water replenishment device for a heating unit in a power plant, comprising a column box, wherein the upper end of the left side surface of the column box is fixedly plugged with a water outlet pipe, and the lower end of the right side surface of the column box is fixedly plugged with a water supply pipe. An upper plate is arranged inside the column box, and the upper surface of the upper plate is fixedly connected to two height-fixing rods. The upper end of the column box is slidably sleeved on the outer surface of the height-fixing rod, and a lower plate is slidably inserted inside the column box and located below the upper plate. The upper surface of the lower plate is fixedly connected with an inner rod, and the upper plate is slidably sleeved on the outer surface of the inner rod. The upper end of the inner rod slides through the inner top wall of the column box, and a water outlet hole is provided on the left inner wall of the upper plate. Blocks are slidably inserted on the left and right sides of the inner rod, and the ends of the two blocks close to each other are fixedly connected with a spring telescopic rod, and the other end of the spring telescopic rod is fixedly connected to the inner rod, and the sides of the upper plate and the lower plate close to each other are connected by a connecting rope.

[0006] Preferably, a power telescopic rod is fixedly connected to the front side of the column box, and the upper end of the power telescopic rod is fixedly connected to the upper end of the inner rod.

[0007] Preferably, end plates are provided on the sides of the upper plate and the lower plate that are away from each other, and the two end plates are slidably inserted into the interior of the column box. Positioning springs are fixedly connected to the sides of the two end plates that are away from each other, and the ends of the two positioning springs that are away from each other are respectively connected to the upper and lower inner walls of the column box, the upper positioning spring is slidably sleeved on the outer surface of the inner rod, the upper end plate is slidably sleeved on the outer surface of the inner rod, and the upper end plate is slidably sleeved on the outer surface of the height-fixing rod.

[0008] Preferably, a height-fixing cylinder is provided on the inner side of the two positioning springs, and the two end plates are fixedly sleeved on the ends of the two height-fixing cylinders that are close to each other, and the upper and lower ends of the column box are slidably sleeved on the ends of the two height-fixing cylinders that are away from each other, and the height-fixing cylinder located above is slidably sleeved on the outer surface of the inner rod.

[0009] Preferably, the upper surface of the upper plate is a four-sided concave shape, the bottom surface of the upper plate is a concave structure, and the upper end of the lower plate is adapted to the concave structure of the bottom surface of the upper plate.

[0010] Preferably, the ends of the blocks located outside the inner rod are both semicircular structures, and the two blocks are symmetrically distributed about the axis of the inner rod.

[0011] Preferably, the diameter of one end of the height-fixing rod located outside the column box is larger than the diameter of the other end thereof, and the two height-fixing rods are symmetrically distributed about the axis of the inner rod.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting the inner rod, upper plate and lower plate, when the lower plate moves to the bottom of the water supply pipe, the upper end of the height-fixing rod contacts the upper end of the column box, limiting the highest position of the upper plate, so that the water outlet pipe is located above the upper plate, so that when the water supply pipe is filled with water between the upper plate and the lower plate, water will not enter the water outlet pipe, and the water outlet pipe and the water supply pipe are separated. After the space between the upper plate and the lower plate is filled with water, the inner rod drives the lower plate to move upward, and the water between the upper plate and the lower plate pushes the upper plate to move synchronously. When the upper plate drives the water outlet hole to connect with the water outlet pipe, the upper plate can push the water above into the water outlet pipe to complete the water supply to the heating unit when it moves upward, and at the same time separate the water outlet pipe from the water supply pipe.

[0014] 2. By setting a height-fixing cylinder, a positioning spring and an end plate, when the upper plate moves to the bottom of the water outlet pipe, the upper positioning spring pushes the upper end plate to move downward, and when the upper height-fixing cylinder contacts the upper surface of the column box, the upper end plate blocks the right end of the water outlet pipe. When the lower plate moves upward, the lower end plate moves upward synchronously under the push of the lower positioning spring, and when the lower end plate blocks the left end of the water supply pipe, the lower height-fixing cylinder contacts the bottom surface of the column box, so that the lower end plate stably blocks the left end of the water supply pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the column box of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection between the height-fixing cylinder and the column box of the utility model;

[0019] Figure 4 It is a schematic diagram of the partial structure of the utility model;

[0020] Figure 5 For this utility model Figure 3 A schematic diagram of the enlarged structure in the middle.

[0021] Description of reference numerals:

[0022] 1. Column box; 2. Water outlet pipe; 3. Water supply pipe; 4. Height-fixing rod; 5. Inner rod; 6. Upper plate; 7. Water outlet hole; 8. Stopper; 9. Connecting rope; 10. Power telescopic rod; 11. Lower plate; 12. Spring telescopic rod; 13. End plate; 14. Positioning spring; 15. Height-fixing cylinder. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] Reference Figure 1-5, which is an embodiment of the utility model, provides a water replenishment device for a heating unit in a power plant, and the water replenishment device for a heating unit in a power plant comprises a column box 1, a water outlet pipe 2 is fixedly plugged into the upper end of the left side surface of the column box 1, and the water outlet pipe 2 is connected to the heating unit, a water supply pipe 3 is fixedly plugged into the lower end of the right side surface of the column box 1, and the water supply pipe 3 is connected to the water supply structure, and an upper plate 6 is arranged inside the column box 1, and two height-fixing rods 4 are fixedly connected to the upper surface of the upper plate 6, and the diameter of one end of the height-fixing rod 4 located outside the column box 1 is larger than the diameter of the other end thereof, and the two height-fixing rods 4 are fixedly connected to the upper surface of the upper plate 6. The rods 4 are symmetrically distributed around the axis of the inner rod 5. The height-fixing rod 4 limits the lowest position of the upper plate 6 moving downward. The upper end of the column box 1 is slidably sleeved on the outer surface of the height-fixing rod 4. The lower plate 11 is slidably inserted inside the column box 1 and located below the upper plate 6. The upper surface of the upper plate 6 is a four-sided concave shape, and the bottom surface of the upper plate 6 is a concave structure. The upper end of the lower plate 11 is adapted to the concave structure of the bottom surface of the upper plate 6. When the lower plate 11 contacts the upper plate 6, the water between the upper plate 6 and the lower plate 11 can be fully squeezed out, and the upper surface of the lower plate 11 The inner rod 5 is fixedly connected, and the upper plate 6 is slidably sleeved on the outer surface of the inner rod 5. The upper end of the inner rod 5 slides through the inner top wall of the column box 1. The left inner wall of the upper plate 6 is provided with a water outlet 7. The left and right sides of the inner rod 5 are slidably plugged with stoppers 8. The ends of the two stoppers 8 close to each other are fixedly connected with a spring telescopic rod 12. The other end of the spring telescopic rod 12 is fixedly connected to the inner rod 5. The ends of the stoppers 8 located outside the inner rod 5 are all semicircular structures. The two stoppers 8 are symmetrically distributed about the axis of the inner rod 5. When the inner rod 5 drives the stoppers 8 and the upper The plate 6 continues to move upward, pushing the stopper 8 to compress the spring telescopic rod 12 and retract it into the inner rod 5. When the bottom surface of the upper plate 6 contacts the upper surface of the upper plate 6, the stopper 8 moves to the top of the upper plate 6. When the inner rod 5 moves downward again, the inner rod 5 first pulls the upper plate 6 to move upward synchronously through the stopper 8. The upper plate 6 and the lower plate 11 are connected on one side close to each other by a connecting rope 9. The connecting rope 9 limits the maximum distance between the upper plate 6 and the lower plate 11 to prevent the upper plate 6 from being pushed to move upward and connected to the water outlet 7 when water is filled between the upper plate 6 and the lower plate 11.

[0025] The front of the column box 1 is fixedly connected with a power telescopic rod 10, the upper end of the power telescopic rod 10 is fixedly connected to the upper end of the inner rod 5, and the upper plate 6 and the lower plate 11 are provided with an end plate 13 on the side away from each other. The two end plates 13 are slidably inserted into the interior of the column box 1, and the two end plates 13 are fixedly connected with a positioning spring 14 on the side away from each other. The ends of the two positioning springs 14 that are away from each other are respectively connected to the upper and lower inner walls of the column box 1, and the positioning spring 14 located at the top is slidably sleeved on the outer surface of the inner rod 5, and the end plate 13 located at the top is slidably sleeved on the outer surface of the inner rod 5. The end plate 13 located at the top is slidably sleeved Connected to the outer surface of the height-fixing rod 4, the inner sides of the two positioning springs 14 are provided with height-fixing cylinders 15, and the two end plates 13 are respectively fixedly sleeved on the ends of the two height-fixing cylinders 15 that are close to each other. The upper and lower ends of the column box 1 are respectively slidably sleeved on the ends of the two height-fixing cylinders 15 that are away from each other. The height-fixing cylinder 15 located above is slidably sleeved on the outer surface of the inner rod 5. When the upper plate 6 moves to below the water outlet pipe 2, the upper positioning spring 14 pushes the upper end plate 13 to seal the right end of the water outlet pipe 2. When the lower plate 11 moves to above the water supply pipe 3, the lower positioning spring 14 pushes the lower end plate 13 to seal the left end of the water supply pipe 3.

[0026] During use, when the lower plate 11 moves to the bottom of the water supply pipe 3, the upper end of the height-fixing rod 4 contacts the upper end of the column box 1, limiting the highest position of the upper plate 6, so that the water outlet pipe 2 is located above the upper plate 6, and the upper end plate 13 blocks the right end of the water outlet pipe 2 under the push of the upper positioning spring 14 to prevent the water in the water outlet pipe 2 from flowing above the upper plate 6. When the water supply pipe 3 is filled with water between the upper plate 6 and the lower plate 11, water will not enter the water outlet pipe 2, and the water outlet pipe 2 and the water supply pipe 3 are separated. After the space between the upper plate 6 and the lower plate 11 is filled with water, the inner rod 5 drives the lower plate 11 to move upward, so that the lower end plate 13 blocks the left end of the water supply pipe 3, so that water cannot flow to the bottom of the lower plate 11, and the water pushes the water between the upper plate 6 and the lower plate 11. The upper plate 6 moves synchronously. When the upper plate 6 drives the water outlet hole 7 to connect with the water outlet pipe 2, when the upper plate 6 continues to move upward, the water above can be pushed into the water outlet pipe 2 to complete the water supply to the heating unit. When the lower plate 11 contacts the lower plate 11, the stopper 8 retracts into the inner rod 5 by contacting the lower end of the upper plate 6 and moves above the upper plate 6. Then the spring telescopic rod 12 pushes the stopper 8 to move outward to block the upper surface of the upper plate 6. When the inner rod 5 pushes the lower plate 11 to move downward, the inner rod 5 drives the upper plate 6 to move downward synchronously through the stopper 8. After the upper end of the height-fixing rod 4 contacts the upper surface of the column box 1, when the inner rod 5 continues to move downward, the stopper 8 retracts into the inner rod 5 by contacting the upper surface of the upper plate 6, so that the lower plate 11 gradually moves away from the upper plate 6.

[0027] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A water replenishment device for a heating unit in a power plant, comprising a column box (1), characterized in that: The upper end of the left side surface of the column box (1) is fixedly connected with a water outlet pipe (2), the lower end of the right side surface of the column box (1) is fixedly connected with a water supply pipe (3), an upper plate (6) is arranged inside the column box (1), two height-fixing rods (4) are fixedly connected to the upper surface of the upper plate (6), the upper end of the column box (1) is slidably sleeved on the outer surface of the height-fixing rod (4), a lower plate (11) is slidably connected inside the column box (1) and below the upper plate (6), and an inner rod (5) is fixedly connected to the upper surface of the lower plate (11). The upper plate (6) is slidably sleeved on the outer surface of the inner rod (5), the upper end of the inner rod (5) slides through the inner top wall of the column box (1), a water outlet hole (7) is opened on the left inner wall of the upper plate (6), and the left and right sides of the inner rod (5) are slidably plugged with stoppers (8), and the ends of the two stoppers (8) close to each other are fixedly connected with spring telescopic rods (12), and the other end of the spring telescopic rod (12) is fixedly connected to the inner rod (5), and the upper plate (6) and the lower plate (11) are connected by a connecting rope (9) on the sides close to each other.

2. The water replenishment device for a heating unit in a power plant according to claim 1, characterized in that: A power telescopic rod (10) is fixedly connected to the front of the column box (1), and the upper end of the power telescopic rod (10) is fixedly connected to the upper end of the inner rod (5).

3. The water replenishment device for a heating unit in a power plant according to claim 1, characterized in that: An end plate (13) is provided on the side of the upper plate (6) and the lower plate (11) away from each other. The two end plates (13) are slidably inserted into the interior of the column box (1). Positioning springs (14) are fixedly connected to the sides of the two end plates (13) away from each other. The ends of the two positioning springs (14) away from each other are respectively connected to the upper and lower inner walls of the column box (1). The positioning spring (14) located at the top is slidably sleeved on the outer surface of the inner rod (5). The end plate (13) located at the top is slidably sleeved on the outer surface of the inner rod (5). The end plate (13) located at the top is slidably sleeved on the outer surface of the height-fixing rod (4).

4. The water replenishment device for a heating unit in a power plant according to claim 3, characterized in that: A height-fixing cylinder (15) is disposed inside the two positioning springs (14), the two end plates (13) are respectively fixedly sleeved on ends of the two height-fixing cylinders (15) that are close to each other, the upper and lower ends of the column box (1) are respectively slidably sleeved on ends of the two height-fixing cylinders (15) that are away from each other, and the height-fixing cylinder (15) located at the top is slidably sleeved on the outer surface of the inner rod (5).

5. The water replenishment device for a heating unit in a power plant according to claim 1, characterized in that: The upper surface of the upper plate (6) is in the shape of a four-sided cone depression, the bottom surface of the upper plate (6) is in the shape of a depression, and the upper end of the lower plate (11) is adapted to the depression structure of the bottom surface of the upper plate (6).

6. The water replenishment device for a heating unit in a power plant according to claim 1, characterized in that: The ends of the stoppers (8) located outside the inner rod (5) are both semicircular structures, and the two stoppers (8) are symmetrically distributed about the axis of the inner rod (5).

7. The water replenishment device for a heating unit in a power plant according to claim 1, characterized in that: The diameter of one end of the height-fixing rod (4) located outside the column box (1) is larger than the diameter of the other end thereof, and the two height-fixing rods (4) are symmetrically distributed about the axis of the inner rod (5).

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