Sewage source heat pump drainage device suitable for extreme environment
By using a threaded movable control component and a conical plug in the wastewater source heat pump drainage device, the problems of rust and blockage in the drainage device under extreme environments are solved, enabling convenient and efficient drainage operation and improving the reliability and maintainability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-03-03
AI Technical Summary
Existing wastewater source heat pump units are prone to rust and blockage of drainage devices in extreme environments, and drainage is difficult in low-temperature environments, affecting maintenance efficiency.
The design incorporates a drain pipe with an external threaded connection to a moving control component and a conical plug. The conical plug moves up and down via an external nut to achieve sealing or separation, preventing rust and blockage, and is suitable for extreme environments.
It improves the convenience and efficiency of drainage operations, prevents rust and blockage, and enhances the reliability and maintainability of the equipment.
Smart Images
Figure CN223965638U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat pump technology, and more specifically to a wastewater source heat pump drainage device suitable for extreme environments. Background Technology
[0002] Wastewater source heat pumps are a type of water source heat pump, widely used in heating, cooling, and hot water supply. Their high efficiency, environmental friendliness, and energy-saving features have been widely recognized. When a wastewater source heat pump unit is running, wastewater acts as a low-grade heat source, exchanging heat with the refrigerant in the evaporator to achieve heat transfer.
[0003] When a wastewater source heat pump unit is shut down, the water in the evaporator needs to be drained promptly to avoid a series of adverse effects caused by water stagnation inside the system. Currently, most wastewater source heat pump unit evaporators use internally threaded plugs for drainage. When the unit is shut down, the accumulated water is drained by opening the internally threaded plug. However, this type of drainage device has some problems:
[0004] (1) The internal thread plug is in contact with sewage for a long time, which can easily cause the plug to rust, making drainage difficult. When the sewage source heat pump unit is shut down for drainage in cold seasons or low temperature environments, the evaporator drain pipe may freeze. At this time, it will be very difficult to open the internal thread plug for drainage, which will affect the maintenance efficiency of the heat pump unit.
[0005] (2) Sewage often contains impurities such as floating objects and suspended solids, which can easily clog the drain pipe openings, causing water to accumulate and be unable to be discharged.
[0006] Therefore, how to provide a wastewater source heat pump drainage device that is easy to operate, effectively prevents clogging, and improves drainage efficiency, suitable for extreme environments, is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0007] In view of this, the present invention provides a wastewater source heat pump drainage device suitable for extreme environments, aiming to solve the above-mentioned technical problems.
[0008] To achieve the above objectives, the present invention adopts the following technical solution:
[0009] A wastewater source heat pump drainage device suitable for extreme environments includes a drainage mechanism installed on the bottom wall of the evaporator, characterized in that the drainage mechanism comprises:
[0010] A drain pipe, the inlet of which is detachably connected to the bottom wall of the evaporator and communicates with the interior of the evaporator;
[0011] A motion control assembly, which is threadedly connected to the outer wall of the drain pipe;
[0012] A conical plug, the bottom end of which is fixed to the movement control component, and the top end of which is a pointed tip, extends from the drain outlet of the drain pipe through the interior of the drain pipe into the evaporator. The conical plug can move up and down along the vertical direction of the drain pipe under the drive of the movement control component, thereby sealing or separating the outer wall of the conical plug from the drain outlet at the bottom end of the drain pipe.
[0013] Through the above technical solution, this utility model provides a sewage source heat pump drainage device suitable for extreme environments. By connecting a movable control component to the outer thread of the drainage pipe, it can avoid the difficulty of drainage operation caused by the movable control component rusting due to long-term contact with sewage. It also avoids the technical problem of the drainage pipe freezing and the difficulty of turning the internal thread screw under extreme conditions. By turning the outer thread movable control component, the pointed conical plug is driven to move up and down. The tip design of the pointed conical plug helps to push or push away impurities in the sewage during the drainage process to prevent blockage. At the same time, the outer wall of the pointed conical plug seals or separates from the inner wall of the bottom end of the drainage pipe, realizing the drainage operation and closure of the device.
[0014] Preferably, in the above-mentioned wastewater source heat pump drainage device suitable for extreme environments, the movement control component includes an outer nut and a support plate. The outer nut is threadedly connected to the outer wall of the drainage pipe, and the support plate is located below the outer nut. Multiple connecting rods are connected between the upper surface of the support plate and the bottom end face of the outer nut. The upper surface of the support plate is fixed to the bottom surface of the conical plug. The structural design of the outer nut and support plate provides stable movement control, ensuring that the conical plug can move smoothly up and down. The connecting rods connect the outer nut and support plate, enhancing the structural strength of the entire movement control component and improving the reliability of the equipment. The threaded connection of the outer nut facilitates manual or tool operation, making drainage control convenient for users. This structural design facilitates the maintenance and replacement of the movement control component, improving the maintainability of the equipment.
[0015] Preferably, in the above-mentioned wastewater source heat pump drainage device suitable for extreme environments, the bottom diameter of the conical plug is larger than its top diameter, and the diameter of the conical plug decreases sequentially from its bottom to its top. The larger bottom diameter of the conical plug allows for better sealing with the inner wall of the drain pipe bottom, preventing wastewater leakage. The smaller top diameter of the conical plug, with its pointed design, helps to push away impurities during drainage, reducing blockages and improving drainage efficiency. The larger bottom diameter ensures that the conical plug will not shift due to pressure differences in a sealed state, enhancing the reliability of the device. This structural design allows the conical plug to better adapt to drain pipes of different diameters, improving the versatility of the device.
[0016] Preferably, in the above-mentioned wastewater source heat pump drainage device suitable for extreme environments, the diameter of the drain pipe is smaller than the bottom diameter of the conical plug. The smaller diameter of the drain pipe ensures that the conical plug fits tightly against the inner wall of the drain pipe, achieving a better sealing effect. The larger bottom diameter of the conical plug provides more stable support, preventing the conical plug from shaking during drainage.
[0017] Preferably, in the above-mentioned wastewater source heat pump drainage device suitable for extreme environments, both the drain pipe and the conical plug are made of stainless steel. Stainless steel has good corrosion resistance, can resist the erosion of chemicals in wastewater, and extends the service life of the equipment.
[0018] Preferably, in the above-mentioned wastewater source heat pump drainage device suitable for extreme environments, the height of the conical plug is greater than the length of the drain pipe. The greater height of the conical plug ensures that it completely covers the drain outlet of the drain pipe, achieving a better sealing effect. The taller conical plug can also more effectively push away impurities during movement, reducing blockages and improving drainage efficiency.
[0019] Preferably, in the above-mentioned wastewater source heat pump drainage device suitable for extreme environments, the number of drainage mechanisms is multiple, and the multiple drainage mechanisms are arranged at intervals on the bottom wall of the evaporator. The interval arrangement of multiple drainage mechanisms can ensure that the wastewater in the evaporator is discharged evenly, avoiding local water accumulation. The simultaneous operation of multiple drainage mechanisms greatly improves the drainage speed and efficiency. Even if one drainage mechanism fails, the others can still work normally, enhancing the reliability of the entire drainage system. The design of multiple drainage mechanisms can distribute the drainage pressure, reduce the load on individual drainage mechanisms, and thus reduce the maintenance cost of the equipment.
[0020] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a wastewater source heat pump drainage device suitable for extreme environments, which has the following beneficial effects:
[0021] 1. This utility model has an external nut threaded on the outside of the drain pipe, which can effectively prevent the external nut from rusting due to long-term contact with sewage, thus preventing difficulties in drainage operation.
[0022] 2. This utility model, through the pointed cone-shaped plug design, can effectively push or push away impurities in sewage during the drainage process, reducing the accumulation of impurities at the drain outlet, thereby reducing the risk of drain outlet blockage.
[0023] 3. By tightening the outer nut, this utility model can drive the conical plug to move up and down, thereby sealing and opening the drain pipe, and thus realizing the closing and drainage operation of the drainage device. The operation is convenient and flexible, and the drainage process can be controlled at any time as needed, improving the ease of use of the equipment. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0025] Figure 1 The attached figure is a structural schematic diagram of the wastewater source heat pump unit and drainage device provided by this utility model;
[0026] Figure 2 The attached image is... Figure 1 Enlarged view of section A in the attached figure;
[0027] Figure 3 The attached figure is a cross-sectional view of the wastewater source heat pump drainage device provided by this utility model in the open state;
[0028] Figure 4 The attached figure is a cross-sectional view of the wastewater source heat pump drainage device provided by this utility model in the closed state;
[0029] Figure 5 The attached figure is a schematic diagram of the structure of the wastewater source heat pump drainage device provided by this utility model for lifting up debris.
[0030] in:
[0031] 1-Evaporator;
[0032] 2-Drain pipe;
[0033] 21-Inlet; 22-Outlet;
[0034] 3-Motion control components;
[0035] 31-Outer nut; 32-Support plate; 33-Connecting rod;
[0036] 4- Conical plug. Detailed Implementation
[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0038] See appendix Figure 1 To be continued Figure 5 This utility model discloses a wastewater source heat pump drainage device suitable for extreme environments, including a drainage mechanism installed on the bottom wall of the evaporator 1. The drainage mechanism includes:
[0039] Drain pipe 2, the inlet 21 of drain pipe 2 is detachably connected to the bottom wall of evaporator 1 and communicates with the inside of evaporator 1;
[0040] The movement control component 3 is threadedly connected to the outer wall of the drain pipe 2;
[0041] The bottom end of the pointed cone plug 4 is fixed on the moving control component 3. The top end of the pointed cone plug 4 is a sharp point and extends from the drain port 22 of the drain pipe 2 through the inside of the drain pipe 2 to the evaporator 1. The pointed cone plug 4 can move up and down along the vertical direction of the drain pipe 2 under the drive of the moving control component 3, so as to seal or separate the outer wall of the pointed cone plug 4 from the drain port at the bottom end of the drain pipe 2.
[0042] To further optimize the above technical solution, the motion control component 3 includes an outer nut 31 and a support plate 32. The outer nut 31 is threadedly connected to the outer wall of the drain pipe 2. The support plate 32 is located below the outer nut 31, and multiple connecting rods 33 are connected between its upper surface and the bottom end face of the outer nut 31. The upper surface of the support plate 32 is fixed to the bottom surface of the conical plug 4.
[0043] To further optimize the above technical solution, the bottom diameter of the pointed conical plug 4 is larger than the top diameter, and the diameter of the pointed conical plug 4 decreases sequentially from its bottom diameter to its top diameter.
[0044] To further optimize the above technical solution, the bottom diameter of the pointed conical plug 4 is 55mm, the length is 135mm, and the material is stainless steel.
[0045] To further optimize the above technical solution, the diameter of the drain pipe 2 is smaller than the bottom diameter of the conical plug 4.
[0046] To further optimize the above technical solution, the inner diameter is 40mm and the length is 80mm.
[0047] To further optimize the above technical solution, both the drain pipe 2 and the conical plug 4 are made of stainless steel.
[0048] To further optimize the above technical solution, the height of the conical plug 4 is greater than the length of the drain pipe 2.
[0049] To further optimize the above technical solution, multiple drainage mechanisms are arranged at intervals on the bottom wall of the evaporator.
[0050] The embodiments of this utility model are as follows:
[0051] In extreme environments, the drain outlet of the wastewater source heat pump may be blocked by blockages, preventing normal drainage. First, use a tool to control the outer nut 31 to rotate clockwise, causing the outer nut 31 to move the support plate 32 downwards. The support plate 32 will then move the conical plug 4 downwards, creating a gap between the conical plug 4 and the drain outlet of the drain pipe 2. At this time, the accumulated water will be discharged outwards through the drain pipe 2. After the accumulated water is drained, rotate the outer nut 31 clockwise until the conical plug 4 and the drain outlet of the drain pipe 2 are closed without gaps, completing the drainage operation.
[0052] In the evaporator 1 of the wastewater source heat pump, wastewater flows. Although the wastewater is treated, it still contains floating matter and suspended solids. When the evaporator 1 drains, the floating matter and suspended solids in the residual wastewater in the evaporator 1 will block the inlet of the drain pipe 2, preventing the water from draining. At this time, a tool is used to control the outer nut 31 to rotate counterclockwise, so that the outer nut 31 drives the support plate 32 to move upward. The support plate 32 drives the conical plug 4 to move upward as well. The conical plug 4 will push up or break the debris blocking the inlet of the drain pipe 2, allowing the water to flow smoothly and completing the drainage.
[0053] It should be noted that this utility model can be applied not only to wastewater source heat pump drainage devices in extreme environments, but also to drainage devices under conventional conditions.
[0054] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.
[0055] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A sewage source heat pump drainage device suitable for use in extreme environments, comprising a drainage mechanism mounted on the bottom wall of an evaporator (1), characterized in that, The drainage mechanism comprises: a drain pipe (2), a water inlet (21) of the drain pipe (2) is detachably connected to a bottom wall of the evaporator (1) and communicates with the inside of the evaporator (1); a movement control assembly (3) is threadedly connected to an outer side wall of the drain pipe (2); a pointed conical plug (4) is fixed at a bottom end of the movement control assembly (3), a top end of the pointed conical plug (4) is a pointed end, and the pointed conical plug (4) extends through the inside of the drain pipe (2) from a drain outlet (22) of the drain pipe (2) to the inside of the evaporator (1), the pointed conical plug (4) can be driven by the movement control assembly (3) to move up and down along a vertical direction of the drain pipe (2) to realize sealing or separation of an outer side wall of the pointed conical plug (4) and the bottom end drain outlet of the drain pipe (2).
2. The sewage source heat pump drainage device suitable for extreme environments according to claim 1, characterized in that, The movement control assembly (3) comprises an outer nut (31) and a supporting plate (32), the outer nut (31) is threadedly connected to the outer side wall of the drain pipe (2), the supporting plate (32) is located below the outer nut (31), and a plurality of connecting rods (33) are connected between an upper surface of the supporting plate (32) and a bottom end surface of the outer nut (31), and the upper surface of the supporting plate (32) is fixed to a bottom surface of the pointed conical plug (4).
3. The sewage source heat pump drainage device suitable for extreme environments according to claim 1, characterized in that, The bottom diameter of the pointed conical plug (4) is greater than the top diameter, and the pointed conical plug (4) decreases from the bottom diameter to the top diameter.
4. The sewage source heat pump drainage device suitable for extreme environments according to claim 3, characterized in that, The pipe diameter of the drain pipe (2) is less than the bottom diameter of the pointed conical plug (4).
5. The sewage source heat pump drainage device suitable for extreme environments according to claim 1, characterized in that, The drain pipe (2) and the pointed conical plug (4) are made of stainless steel.
6. The sewage source heat pump drainage device suitable for extreme environments according to claim 5, characterized in that, The height of the pointed conical plug (4) is greater than the length of the drain pipe (2).
7. A sewage source heat pump drainage device suitable for use in extreme environments according to any one of claims 1-6, characterised in that, The number of the drainage mechanisms is multiple, and the multiple drainage mechanisms are arranged at intervals on the bottom wall of the evaporator.