Heat preservation type suction-deflation-preventing open type heat preservation box water inlet and exhaust pipe

Abstract

The utility model discloses a heat preservation type suction deflation prevention open type heat preservation box water inlet and exhaust pipe which comprises an outer pipe and an exhaust pipe, an exhaust tee joint is arranged on the lower middle portion of the inner side of the outer pipe, one opening of the exhaust tee joint faces upwards, the other two openings of the exhaust tee joint are communicated with the outer portion of the outer pipe and fixed to the outer pipe, and a negative pressure valve is installed on the inner side of the opening in the left side of the exhaust tee joint. The exhaust pipe is arranged on the inner side of the outer pipe, the upper end of the exhaust pipe is exposed out of the outer pipe, and the lower end of the exhaust pipe is connected with an upper opening of the exhaust tee joint. According to the heat preservation type suction-deflation-preventing open heat preservation box water inlet and exhaust pipe, the heat preservation water tank can be effectively prevented from being sucked deflation due to the internal and external pressure intensity difference, economic losses of a user are avoided, and meanwhile the safety of a solar water heater is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solar water heater accessories, in particular to a heat-insulating anti-sucking and shrinking heat-insulating box water inlet and outlet pipe. Background Art

[0002] Solar water heaters use free sunlight as heat source, save energy costs and are pollution-free, and are becoming more and more popular. The water tank of a solar water heater has an inlet, an outlet and an exhaust port that are connected to the outside world. Cold water enters the water tank and the vacuum heat collecting tube through the inlet pipe. The vacuum heat collecting tube heats the cold water with the sun's light (heat) energy and collects it in the water tank. Hot water flows from the outlet through the outlet pipe for users to use.

[0003] The process of cold water gradually entering the water tank is also the process of air in the water tank being gradually discharged from the exhaust port; similarly, the process of hot water being released from the water tank is also the process of outside air gradually entering the water tank; therefore, the unobstructed exhaust pipe is a necessary condition for the entry and exit of hot and cold water in the water tank; however, the exhaust pipe and its pipe opening of the existing solar water heater are exposed to the outside world, and ice blockage and dirt blockage in the exhaust pipe often occur in the dead of winter; at this time, if the user uses hot water, the hot water flows downward, and the air pressure in the water tank is lower than the air pressure outside the water tank. The greater the water drop, the greater the negative air pressure in the water tank, until the water tank is sucked flat and scrapped, which not only causes economic losses to users, but also poses certain safety hazards. Utility Model Content

[0004] The utility model aims to provide a heat preservation type anti-sucking and deflated open type heat preservation box water inlet and exhaust pipe, so as to solve the technical problem that the heat preservation water tank of the existing solar water heater is easy to be deflated due to the blockage of the exhaust pipe.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A heat-insulating, suction-proof, deflated, heat-insulating box water inlet and exhaust pipe comprises an outer tube and an exhaust pipe, an exhaust tee is provided at the middle and lower part of the inner side of the outer tube, one of the openings of the exhaust tee faces upward, and the other two openings are connected to the outside of the outer tube and fixed to the outer tube, a negative pressure valve is installed at the inner side of the opening on the left side of the exhaust tee; the exhaust pipe is provided at the inner side of the outer tube, the upper end of the exhaust pipe is exposed to the outer tube, and the lower end is connected to the upper opening of the exhaust tee, and the gap part inside the outer tube is filled with a heat-insulating foaming agent.

[0007] The utility model is further configured as follows: a water inlet elbow is provided at the lower end of the inner side of the outer tube, one end of the water inlet elbow opens downward, and the other end is connected to the outside of the outer tube and fixed to the outer tube. The water inlet elbow is integrated with the exhaust pipe, which effectively improves the installation convenience of the exhaust pipe and the water inlet pipe of the solar water heater.

[0008] The utility model is further configured as follows: the upper and lower ends of the outer tube are respectively provided with an upper cover and a lower cover, the exhaust pipe penetrates the upper cover, and the lower end of the water inlet elbow penetrates the lower cover. The configuration of the upper cover and the lower cover not only increases the service life of the thermal insulation foaming agent, but also improves the aesthetics of the utility model, which is conducive to product sales.

[0009] The utility model is further configured as follows: the opening on the right side of the exhaust tee includes a fixed port and a movable port, and the fixed port is threadedly connected to the movable port. This configuration effectively reduces the difficulty of installing the exhaust tee to the inner side of the outer pipe during the production process.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. When the heat-insulating anti-sucking and deflated open heat-insulating tank water inlet and exhaust pipe of the utility model is in use, the opening on the right side of the exhaust tee is connected with the exhaust port of the heat-insulating water tank through a pipeline. When the exhaust pipe is blocked by ice or dirt, if the user turns on the hot water, as the hot water flows down, the pressure inside the heat-insulating water tank decreases, and the negative pressure valve on the inner side of the opening on the left side of the exhaust tee opens under the action of pressure, and air enters the heat-insulating water tank, thereby maintaining the pressure balance inside and outside the heat-insulating water tank, preventing the heat-insulating water tank from being sucked and deflated due to the pressure difference between the inside and outside, avoiding economic losses of users, and also improving the safety of the solar water heater.

[0012] 2. The gap inside the outer tube of the utility model is filled with a thermal insulation foaming agent, which can effectively prevent ice and blockage inside the exhaust pipe in winter. At the same time, the filling of the thermal insulation foaming agent can also squeeze and stabilize the exhaust tee and the water inlet elbow. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] In the figure: 1. outer tube; 11. upper cover; 12. lower cover; 2. exhaust pipe; 3. exhaust tee; 31. fixed port; 32. movable port; 4. negative pressure valve; 5. thermal insulation foaming agent; 6. water inlet elbow. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0016] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0017] Embodiment 1:

[0018] like Figure 1 As shown, an insulated, suction-proof, deflated, insulated box water inlet and exhaust pipe comprises an outer tube 1 and an exhaust pipe 2. An exhaust tee 3 is provided at the middle and lower part of the inner side of the outer tube 1. One of the openings of the exhaust tee 3 faces upward, and the other two openings are connected to the outside of the outer tube 1 and fixed to the outer tube 1. A negative pressure valve 4 is installed at the inner side of the opening on the left side of the exhaust tee 3. The exhaust pipe 2 is provided at the inner side of the outer tube 1, with its upper end exposed to the outer tube 1 and its lower end connected to the upper opening of the exhaust tee 3. The gap part inside the outer tube 1 is filled with an insulating foaming agent 5.

[0019] Specifically, the negative pressure valve 4 in this embodiment is installed in the opening on the left side of the exhaust tee 3 by means of a threaded connection (the thread is not shown in the figure). It should be noted that the negative pressure valve 4 of the present invention can also be installed in the opening on the left side of the exhaust tee 3 by conventional methods such as welding and bonding. The method shown in this embodiment does not affect the protection scope of the present invention.

[0020] Embodiment 2:

[0021] As a further preferred embodiment of the present invention, the same features as those of Embodiment 1 are not described in detail, and the different features are:

[0022] like Figure 1 As shown, in this embodiment, a water inlet elbow 6 is provided at the lower end of the inner side of the outer tube 1, one end of the water inlet elbow 6 opens downward, and the other end is connected to the outside of the outer tube 1 and fixed to the outer tube 1. The water inlet elbow 6 is integrated with the exhaust pipe 2, which effectively improves the installation convenience of the exhaust pipe 2 and the water inlet pipe of the solar water heater.

[0023] Embodiment 3:

[0024] As a further preferred embodiment of the present invention, the features of this embodiment that are the same as those of Embodiment 1 or 2 are not described in detail, and the different features are:

[0025] like Figure 1 As shown, the upper and lower ends of the outer tube 1 in this embodiment are respectively provided with an upper cover 11 and a lower cover 12, the exhaust pipe 2 penetrates the upper cover 11, and the lower end of the water inlet elbow 6 penetrates the lower cover 12. The provision of the upper cover 11 and the lower cover 12 not only improves the service life of the thermal insulation foaming agent 5, but also improves the aesthetics of the utility model, which is conducive to product sales.

[0026] Embodiment 4:

[0027] As a further preferred embodiment of the present invention, the same features as those of Embodiment 1, 2 or 3 are not described in detail. The different features are:

[0028] like Figure 1 As shown, the opening on the right side of the exhaust tee 3 in this embodiment includes a fixed port 31 and a movable port 32, and the fixed port 31 is threadedly connected to the movable port 32. This arrangement effectively reduces the difficulty of installing the exhaust tee 3 to the inner side of the outer tube 1 in the production process.

[0029] The above embodiments are only some embodiments of the present invention, and do not limit the present invention in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the present invention by using the above disclosed methods and technical contents without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

[0030] 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 heat-insulating, anti-absorption, collapsible, water inlet and outlet pipe for a heat-insulating box, comprising an outer pipe (1) and an outlet pipe (2), characterized in that: An exhaust tee (3) is provided at the middle and lower part of the inner side of the outer tube (1), one of the openings of the exhaust tee (3) faces upward, and the other two openings are connected to the outside of the outer tube (1) and fixed to the outer tube (1), and a negative pressure valve (4) is installed on the inner side of the opening on the left side of the exhaust tee (3); the exhaust pipe (2) is provided on the inner side of the outer tube (1), the upper end of which is exposed to the outer tube (1), and the lower end is connected to the upper opening of the exhaust tee (3), and the gap inside the outer tube (1) is filled with a thermal insulation foaming agent (5).

2. The heat-insulating anti-absorption and collapse-opening heat-insulating box water inlet and exhaust pipe according to claim 1 is characterized in that: A water inlet elbow (6) is provided at the lower end of the inner side of the outer tube (1), one end of the water inlet elbow (6) is open downward, and the other end is connected to the outside of the outer tube (1) and fixed to the outer tube (1).

3. The heat-insulating anti-absorption and collapse-opening heat-insulating box water inlet and outlet pipe according to claim 2 is characterized in that: An upper cover (11) and a lower cover (12) are respectively provided at the upper and lower ends of the outer tube (1), the exhaust pipe (2) is arranged through the upper cover (11), and the lower end of the water inlet elbow (6) is arranged through the lower cover (12).

4. The heat-insulating anti-absorption and collapse-opening heat-insulating box water inlet and exhaust pipe according to any one of claims 1 to 3, characterized in that: The opening on the right side of the exhaust tee (3) comprises a fixed port (31) and a movable port (32), and the fixed port (31) is threadedly connected to the movable port (32).

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