Hot water tank with deoxidizing mechanism

Abstract

The hot water tank comprises a hot water tank body and a deaerator, a heat exchanger is assembled at the lower end of the deaerator, and a communicating pipe is assembled on the side wall of the hot water tank body; the output end and the input end of the heat exchanger are provided with water outlet pipes. The water outlet pipe at the input end is connected with the deaerator. A vertical pipe is installed at the end of the communicating pipe, connecting boxes are installed at the end of the vertical pipe and the end of the water outlet pipe, and a sealing pipe is assembled between the two connecting boxes. The communicating pipe and the vertical pipe are connected through a connecting structure; the hot water tank with the deoxidizing mechanism is simple in structure and convenient to operate, the deaerator can be arranged at a low position, a front-mounted water pump does not need to be arranged, the construction cost is reduced, and the project investment is reduced; secondly, replenished water is firstly preheated in the heat exchanger and then sprayed out from an inner hole of the rotary film remover, the deoxidizing effect is improved, and the influence of load fluctuation is adapted; and thirdly, the hot water tank is a normal-pressure container and is safer than a deaerator water tank with pressure.

Description

Technical Field

[0001] This patent relates to the field of water deoxygenation technology, specifically a hot water tank with a deoxygenation mechanism. Background Art

[0002] Oxygen corrosion is the most common and serious corrosion in boiler steam-water systems. Before the feed water enters the boiler, it must be deoxygenated to protect the inner wall of the boiler heat exchanger. Conventional deoxygenation methods include thermal deoxygenation, vacuum deoxygenation, and water deoxygenation. The more common and economical deoxygenation method is thermal deoxygenation. The feed water after deoxygenation is in a saturated state. When the water flows through the pump blades, due to the sudden drop in internal liquid pressure, steam bubbles will be generated to form cavitation. In order to prevent cavitation of the feed water pump, the deaerator must be arranged at a high position or a pre-pump must be installed in front of the feed water pump. The system is complex and the investment is large, so it is necessary to improve the existing technology.

[0003] The purpose of this patent is to provide a hot water tank with a deoxygenation mechanism to solve the problems raised in the above background technology. Utility Model Content

[0004] To achieve the above purpose, this patent provides the following technical solutions: a hot water tank with a deaerator, comprising a hot water tank body and a deaerator, the lower end of the deaerator is equipped with a heat exchanger, and the side wall of the hot water tank body is equipped with a connecting pipe;

[0005] The output end and the input end of the heat exchanger are both equipped with a water outlet pipe, and the water outlet pipe at the input end is connected to the deaerator;

[0006] A vertical pipe is installed at the end of the connecting pipe, and a connection box is installed at the end of the vertical pipe and the end of the water outlet pipe, and a sealing pipe is installed between the two connection boxes;

[0007] The connecting pipe and the vertical pipe are connected via a connecting structure.

[0008] Preferably, the connection structure comprises a metal tube, a rubber ring, a clamping block and an L-shaped groove;

[0009] The metal tube is connected to the vertical tube, the rubber ring is installed in the connecting tube, the clamping block is installed on the outer wall of the metal tube, the L-shaped groove is opened on the rubber ring, the L-shaped groove is opened on the metal tube, the metal tube is inserted into the rubber ring, and the clamping block is clamped in the L-shaped groove.

[0010] Preferably, a groove is provided on the clamping block, a spring is installed in the groove, a ball is installed on the spring, an arc groove is provided on the L-shaped groove, and the ball is clamped in the arc groove.

[0011] Preferably, a rubber pad a and a rubber pad b are sleeved on the inside of the connection box and the outside of the sealing tube, and a rubber block is installed on the side wall of the rubber pad a facing the rubber pad b.

[0012] Preferably, the inner wall of the connection box is provided with an internal thread, and the outer wall of the sealing tube is provided with an external thread.

[0013] Preferably, a fixing frame is installed at the bottom end of the deaerator, and the heat exchanger is arranged in the fixing frame.

[0014] Compared with the prior art, the beneficial effects of this patent are: the hot water tank with a deaerator mechanism has a simple structure and is easy to operate. First, the deaerator can be arranged at a low position and does not require a front water pump, which reduces construction costs and reduces project investment; second, the replenishment water is first preheated in the heat exchanger and then sprayed out from the inner hole of the rotary membrane device, which improves the deoxygenation effect and adapts to the influence of load fluctuations; third, the hot water tank is a normal pressure container, which is safer than a pressurized deaerator tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of this patent;

[0016] Figure 2 This is a schematic diagram of the connecting pipe and vertical pipe of this patent;

[0017] Figure 3 This is a schematic diagram of the connection structure of this patent;

[0018] Figure 4 This is a cross-sectional view of the connection box of this patent.

[0019] In the figure: 1 hot water tank body, 2 deaerator, 3 heat exchanger, 4 connection structure, 401 metal pipe, 402 rubber ring, 403 block, 404 L-shaped groove, 5 connecting pipe, 6 vertical pipe, 7 fixing frame, 8 connection box, 9 sealing pipe, 10 water outlet pipe, 11 groove, 12 spring, 13 ball, 14 arc groove, 15 internal thread, 16 external thread, 17 rubber pad a, 18 rubber block, 19 rubber pad b. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of this patent to clearly and completely describe the technical solutions in the embodiments of this patent. Obviously, the described embodiments are only part of the embodiments of this patent, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0021] See also Figures 1 to 4, this patent provides a technical solution: a hot water tank with a deoxygenation mechanism, including a hot water tank body 1 and a deaerator 2, the lower end of the deaerator 2 is equipped with a heat exchanger 3, and the side wall of the hot water tank body 1 is equipped with a connecting pipe 5, the deaerator 2: a device used to remove dissolved oxygen and reduce oxygen content in the replenishing water in the steam-water system; the heat exchanger 3: a heat exchange device in which both the cold source and the heat source are water; the hot water tank body 1: a common insulated water tank for storing hot water;

[0022] The output end and the input end of the heat exchanger 3 are both equipped with a water outlet pipe 10, and the water outlet pipe 10 at the input end is connected to the deaerator 2;

[0023] A vertical pipe 6 is installed at the end of the connecting pipe 5, and a connection box 8 is installed at the end of the vertical pipe 6 and the end of the water outlet pipe 10, and a sealing pipe 9 is installed between the two connection boxes 8;

[0024] The connecting pipe 5 and the vertical pipe 6 are connected via a connecting structure 4 .

[0025] The connection structure 4 includes a metal tube 401, a rubber ring 402, a clamping block 403 and an L-shaped groove 404;

[0026] The metal tube 401 is connected to the vertical tube 6, the rubber ring 402 is installed in the connecting tube 5, the clamping block 403 is installed on the outer wall of the metal tube 401, the L-shaped groove 404 is opened on the rubber ring 402, the L-shaped groove 404 is opened on the metal tube 401, the metal tube 401 is inserted into the rubber ring 402, the clamping block 403 is clamped in the L-shaped groove 404, the rubber ring 402 is made of fluororubber material, which is corrosion-resistant and acid-resistant, and the arc groove 14 is opened in the L-shaped groove 404 on the diversion tube 5.

[0027] The block 403 is provided with a groove 11, in which a spring 12 is installed, on which a ball 13 is installed, and the L-shaped groove 404 is provided with an arc groove 14, in which the ball 13 is clamped, and the connecting pipe 6 is inserted into the rubber ring 402 on the connecting pipe with the metal pipe 401, so that the vertical pipe and the connecting pipe are sealed and connected, as the metal pipe 401 is inserted into the rubber ring 402 on the connecting pipe, the block 403 is clamped into the L-shaped groove 404, and the metal pipe 401 is rotated, so that the block 403 is clamped into the root position of the L-shaped groove 404, and at this time, the spring 12 in the groove 11 gives the ball 13 an outward force, and the ball 13 is clamped into the arc groove 14, thereby enhancing the connection stability between the vertical pipe 6 and the connecting pipe 5.

[0028] The interior of the connection box 8 is located outside the sealing pipe 9 and is sleeved with a rubber pad a17 and a rubber pad b19. The side wall of the rubber pad a17 facing the rubber pad b19 is installed with a rubber block 18. The sealing pipe is connected to the vertical pipe 6 and the water outlet pipe 10 through the two connection boxes 8.

[0029] The inner wall of the connection box 8 is provided with an internal thread 15 , and the outer wall of the sealing tube 9 is provided with an external thread 16 .

[0030] A fixing frame 7 is mounted on the bottom end of the deaerator 2 , and the heat exchanger 3 is arranged in the fixing frame 7 .

[0031] Working principle: The make-up water is preheated in the water-water heat exchanger, and the 104℃ saturated deoxygenated water is cooled to about 90℃ before entering the hot water tank to avoid self-boiling of the outlet water and cavitation of the water pump due to pressure drop in the pipe or water tank.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hot water tank with a deaerator, comprising a hot water tank body (1) and a deaerator (2), characterized in that: The lower end of the deaerator (2) is equipped with a heat exchanger (3), and the side wall of the hot water tank body (1) is equipped with a connecting pipe (5); The output end and the input end of the heat exchanger (3) are both equipped with a water outlet pipe (10), and the water outlet pipe (10) at the input end is connected to the deaerator (2); A vertical pipe (6) is installed at the end of the connecting pipe (5), a connection box (8) is installed at the end of the vertical pipe (6) and the end of the water outlet pipe (10), and a sealing pipe (9) is installed between the two connection boxes (8); The connecting pipe (5) and the vertical pipe (6) are connected via a connecting structure (4).

2. A hot water tank with a deoxygenation mechanism according to claim 1, characterized in that: The connection structure (4) comprises a metal tube (401), a rubber ring (402), a clamping block (403) and an L-shaped groove (404); The metal tube (401) is connected to the vertical tube (6), the rubber ring (402) is installed in the connecting tube (5), the clamping block (403) is installed on the outer wall of the metal tube (401), the L-shaped groove (404) is provided on the rubber ring (402), the L-shaped groove (404) is provided on the metal tube (401), the metal tube (401) is inserted into the rubber ring (402), and the clamping block (403) is clamped in the L-shaped groove (404).

3. A hot water tank with a deoxygenation mechanism according to claim 2, characterized in that: The clamping block (403) is provided with a groove (11), a spring (12) is installed in the groove (11), a round ball (13) is installed on the spring (12), an arc-shaped groove (14) is provided on the L-shaped groove (404), and the round ball (13) is clamped in the arc-shaped groove (14).

4. A hot water tank with a deaerator according to claim 1, characterized in that: The interior of the connection box (8) is located outside the sealing tube (9) and is provided with a rubber pad a (17) and a rubber pad b (19). A rubber block (18) is installed on the side wall of the rubber pad a (17) facing the rubber pad b (19).

5. A hot water tank with a deoxygenation mechanism according to claim 4, characterized in that: The inner wall of the connection box (8) is provided with an internal thread (15), and the outer wall of the sealing tube (9) is provided with an external thread (16).

6. A hot water tank with a deaerator according to claim 1, characterized in that: A fixing frame (7) is mounted on the bottom end of the deaerator (2), and the heat exchanger (3) is arranged inside the fixing frame (7).

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