Energy-saving hot water device for hospital

By using conical ring and guide ring structures in hospital hot water devices, the reverse heat transfer problem caused by long wastewater flow time is solved, and the hot water supply efficiency is improved.

CN223400213UActive Publication Date: 2025-09-30SICHUAN CHUANGXIN TIMES TECHNOLOGY GROUP CO LTD
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Patent Information

Application Number
CN202422811591.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-09-30
Estimated Expiration
2034-11-19

AI Technical Summary

Technical Problem

In existing hospital hot water devices, the long flow time of wastewater causes reverse heat transfer, which reduces the hot water supply efficiency of the heat exchanger.

Method used

The tapered ring and guide ring structure are used to increase the flow rate by narrowing the wastewater flow space, reduce the contact time between wastewater and heat exchange tubes, and avoid reverse heat transfer.

Benefits of technology

The hot water supply efficiency of the heat exchanger is improved and the occurrence of reverse heat transfer is reduced.

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Abstract

The utility model belongs to the field of energy-saving heating equipment, which comprises a tank body, a plurality of energy-saving heat exchange pipes are arranged on one side of the tank body, one sides of the energy-saving heat exchange pipes extend out of the tank body, the energy-saving heat exchange pipes are fixedly connected with the tank body, two supporting blocks are fixedly arranged in the tank body, and the supporting blocks are fixedly connected with the tank body. The inner surfaces of the two supporting blocks are fixedly connected with the outer surfaces of the multiple energy-saving heat exchange pipes, a flow guide mechanism is fixedly arranged between the two supporting blocks, and when waste water with heat enters the tank body and flows towards the flow outlet of the conical ring through the flow inlet of the conical ring, the movement space of the waste water is gradually reduced, and therefore the waste water can be recycled. After the wastewater flows into a plurality of flow guide rings through a circulating groove of a flow limiting ring, the wastewater flows to water outlets of the flow guide rings through water inlets of the flow guide rings, and meanwhile, due to the fact that the movement space of the wastewater is further reduced, the flow speed of the wastewater in the flow guide rings is further increased; and the contact time of the wastewater and the energy-saving heat exchange tube is reduced.
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Description

Technical Field

[0001] The utility model relates to the field of energy-saving heating equipment, in particular to an energy-saving hot water device for hospitals. Background Art

[0002] Hospitals are institutions that provide healthcare services, encompassing diagnosis, treatment, nursing, and rehabilitation. They typically include outpatient departments, inpatient departments, operating rooms, emergency rooms, laboratories, pharmacies, and radiology departments to meet the diverse needs of patients. Daily operations require a large supply of hot water from hot water systems for various purposes, including bathing in wards, disinfecting operating rooms, cooking in the cafeteria, and cleaning in the laundry room.

[0003] In order to respond to the social call for energy conservation and emission reduction, the existing hospital hot water devices are basically heat exchangers, which heat the water in the internal heat exchange tubes through the heat exchanger to meet the hospital's hot water supply. The heat exchanger heats normal water through wastewater and achieves energy saving by recycling heat. However, when the wastewater comes into contact with the heat exchange tubes, due to the large water consumption of hospitals, hospitals generally use large-sized heat exchangers. The wastewater flows for a long time in the large heat exchanger, which increases the contact time between the wastewater and the heat exchange tubes, resulting in a gradual decrease in the temperature gradient during the heat transfer process. In this case, since the temperature of the wastewater is lower than the temperature of the cold water in the heat exchange tubes, reverse heat transfer will occur, which to a certain extent reduces the hot water supply efficiency of the heat exchanger. Utility Model Content

[0004] In view of the deficiencies of the existing technology, the present invention provides an energy-saving hot water device for hospitals, which solves the problem of reverse heat transfer, which reduces the hot water supply efficiency of the heat exchanger to a certain extent.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an energy-saving hot water device for a hospital, comprising a tank body, a plurality of energy-saving heat exchange tubes being provided on one side of the tank body, the plurality of energy-saving heat exchange tubes being extended out of the interior of the tank body on one side, the plurality of energy-saving heat exchange tubes being fixedly connected to the tank body, two support blocks being fixedly provided inside the tank body, the inner surfaces of the two support blocks being fixedly connected to the outer surfaces of the plurality of energy-saving heat exchange tubes, and a flow guide mechanism being fixedly provided between the two support blocks;

[0006] The guide mechanism includes a conical ring, which is arranged between the two support blocks, and the outer surface of the conical ring is fixedly connected to the inner wall of the tank body. The multiple energy-saving heat exchange tubes are located inside the conical ring, and the two ends of the conical ring are respectively provided with an inlet and an outlet. The cross-section of the conical ring inlet is larger than the cross-section of the conical ring outlet. A guide ring is provided on the outer surface of each energy-saving heat exchange tube, and the multiple guide rings are located on one side of the conical ring outlet. The two ends of the multiple guide rings are respectively provided with a water inlet and a water outlet. The cross-section of the guide ring water inlet is larger than the cross-section of the guide ring water outlet. A limit block is fixedly provided on the side opposite to the water inlet of the multiple guide rings and the conical ring outlet. A plurality of flow grooves for ensuring that the multiple guide rings are connected to the conical ring are opened on one side of the limit block, and the outer surface of the limit block is fixedly connected to the inner wall of the tank body.

[0007] As a preferred technical solution of the present invention, a circular groove for allowing wastewater to flow into is opened on one side of one of the support blocks, and the circular groove is located at one end of the conical ring inlet.

[0008] As a preferred technical solution of the present invention, another of the support blocks is provided with a plurality of annular grooves communicating with the guide ring.

[0009] As a preferred technical solution of the present invention, a water inlet pipe is fixedly provided at the top of the tank body, the water inlet pipe is communicated with the tank body, and a water outlet pipe is fixedly provided at the bottom of the tank body, the water outlet pipe is communicated with the tank body.

[0010] As a preferred technical solution of the present invention, a support member is fixedly provided on the bottom of the tank body.

[0011] As a preferred technical solution of the present invention, the support member includes a support frame, and the top end of the support frame is fixedly connected to the bottom of the tank body.

[0012] Compared with the prior art, the utility model provides an energy-saving hot water device for hospitals, which has the following beneficial effects:

[0013] When wastewater with heat enters the interior of the tank body, when the wastewater flows through the inlet of the tapered ring to the outlet of the tapered ring, its movement space gradually shrinks, resulting in an increase in the flow rate of the wastewater. After the wastewater flows into multiple guide rings through the flow groove of the flow limiting ring, the wastewater flows through the water inlet of the guide ring to the water outlet of the guide ring. At the same time, because its movement space is further reduced, the flow rate of the wastewater inside the guide ring is further increased. This structure accelerates the wastewater from leaving the tank body, and at the same time reduces the contact time between the wastewater and the energy-saving heat exchange tube, reduces the occurrence of reverse heat transfer in the energy-saving heat exchange tube, and improves the hot water supply efficiency of the heat exchanger to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1This is a schematic diagram of the overall structure of the energy-saving hot water device for hospitals provided by the utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the energy-saving water heater for hospitals provided by the present invention;

[0016] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the guide ring shown;

[0017] Figure 4 for Figure 3 The schematic diagram of the structure of the top view is shown.

[0018] In the figure: 1. Tank body; 2. Energy-saving heat exchange tube; 3. Support block; 4. Conical ring; 5. Guide ring; 6. Limit block; 7. Circulation groove; 8. Circular groove; 9. Annular groove; 10. Water inlet pipe; 11. Water outlet pipe; 12. Support frame. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1-4The utility model discloses a hospital energy-saving hot water device, comprising a tank body 1, a plurality of energy-saving heat exchange tubes 2 are provided on one side of the tank body 1, and a plurality of energy-saving heat exchange tubes 2 are extended from the inside of the tank body 1 on one side, and the plurality of energy-saving heat exchange tubes 2 are fixedly connected to the tank body 1, and two support blocks 3 are fixedly provided inside the tank body 1, and the inner surfaces of the two support blocks 3 are fixedly connected to the outer surfaces of the plurality of energy-saving heat exchange tubes 2. A guide mechanism is fixedly provided between the two support blocks 3. The guide mechanism comprises a conical ring 4, which is provided between the two support blocks 3, and the outer surface of the conical ring 4 is fixedly connected to the inner wall of the tank body 1. The plurality of energy-saving heat exchange tubes 2 are located inside the conical ring 4, and an inlet and an outlet are respectively provided at both ends of the conical ring 4. The cross section of the inlet of the conical ring 4 is larger than the cross section of the outlet of the conical ring 4. When the wastewater flows from the inlet of the conical ring 4 to the outlet of the conical ring 4, its movement space gradually shrinks, resulting in an increase in the flow rate of the wastewater. A guide ring 5 is provided on the outer surface of each energy-saving heat exchange tube 2. 5 is located on one side of the outlet of the conical ring 4, and a water inlet and a water outlet are respectively provided at both ends of the multiple guide rings 5. The cross section of the water inlet of the guide ring 5 is larger than the cross section of the water outlet of the guide ring 5. The wastewater flows from the water inlet of the guide ring 5 to the water outlet of the guide ring 5. At the same time, because its movement space is further reduced, the flow rate of the wastewater inside the guide ring 5 is further increased. A limit block 6 is fixed on the side opposite to the water inlet of the multiple guide rings 5 ​​and the outlet of the conical ring 4. The limit block 6 ensures that the wastewater inside the conical ring 4 The wastewater from the upper part can smoothly enter the interior of the multiple guide rings 5. A plurality of flow grooves 7 are provided on one side of the limit block 6 to ensure that the multiple guide rings 5 ​​are connected with the tapered ring 4. The outer surface of the limit block 6 is fixedly connected to the inner wall of the tank body 1. A circular groove 8 is provided on one side of one of the support blocks 3 for allowing the wastewater to flow in. The circular groove 8 is located at one end of the inlet of the tapered ring 4. The other support block 3 is provided with a plurality of annular grooves 9 that are connected with the guide ring 5. The annular grooves 9 ensure that the wastewater inside the guide ring 5 can be discharged normally.

[0021] When the waste water contacts the energy-saving heat exchange tube 2 , the heat of the waste water heats the water inside the energy-saving heat exchange tube 2 .

[0022] A water inlet pipe 10 is fixedly provided at the top of the tank body 1, and the water inlet pipe 10 is communicated with the tank body 1. A water outlet pipe 11 is fixedly provided at the bottom of the tank body 1, and the water outlet pipe 11 is communicated with the tank body 1. A support member is fixedly provided at the bottom of the tank body 1, and the support member includes a support frame 12. The top of the support frame 12 is fixedly connected to the bottom of the tank body 1, and the stability of the tank body 1 during operation is ensured by the support frame 12.

[0023] The working principle and usage process of the present invention are as follows: when wastewater with heat enters the interior of the tank body 1 through the water inlet pipe 10, the wastewater then enters the inlet of the conical ring 4 through the circular groove 8 on the support block 3. When the wastewater flows from the inlet of the conical ring 4 to the outlet of the conical ring 4, its movement space gradually shrinks, resulting in an increase in the flow rate of the wastewater. After the wastewater flows into multiple guide rings 5 ​​through the flow groove 7 of the flow limiting ring, the wastewater flows through the water inlet of the guide ring 5 to the water outlet of the guide ring 5. At the same time, because its movement space is further reduced, the flow rate of the wastewater inside the guide ring 5 is further increased. The wastewater with accelerated flow rate leaves the interior of the guide ring 5 through the annular groove 9 of the support block 3. Finally, the wastewater after heat extraction leaves the interior of the tank body 1 through the drain pipe, eliminating the contact between the wastewater and the energy-saving heat exchange tube 2.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A hospital energy-saving hot water device, characterized by: The invention comprises a tank body (1), wherein one side of the tank body (1) is provided with a plurality of energy-saving heat exchange tubes (2), one side of the plurality of energy-saving heat exchange tubes (2) extends out of the interior of the tank body (1), the plurality of energy-saving heat exchange tubes (2) are fixedly connected to the tank body (1), two support blocks (3) are fixedly provided inside the tank body (1), the inner surfaces of the two support blocks (3) are fixedly connected to the outer surfaces of the plurality of energy-saving heat exchange tubes (2), and a flow guide mechanism is fixedly provided between the two support blocks (3); The flow guiding mechanism comprises a conical ring (4), the conical ring (4) being arranged between the two support blocks (3), the outer surface of the conical ring (4) being fixedly connected to the inner wall of the tank body (1), the plurality of energy-saving heat exchange tubes (2) being located inside the conical ring (4), the two ends of the conical ring (4) being respectively provided with an inlet and an outlet, the cross section of the inlet of the conical ring (4) being larger than the cross section of the outlet of the conical ring (4), the outer surface of each energy-saving heat exchange tube (2) being provided with a flow guiding ring (5), the plurality of the flow guiding rings (5) being provided with a flow guiding ring (5) Located on one side of the conical ring (4) outlet, a plurality of guide rings (5) are provided with a water inlet and a water outlet at both ends, the cross section of the guide ring (5) water inlet is larger than the cross section of the guide ring (5) water outlet, a limiting block (6) is fixedly provided on the side opposite to the conical ring (4) outlet of the plurality of guide rings (5), a plurality of flow grooves (7) for ensuring that the plurality of guide rings (5) and the conical ring (4) are in communication is opened on one side of the limiting block (6), and the outer surface of the limiting block (6) is fixedly connected to the inner wall of the tank body (1).

2. The energy-saving hot water device for hospitals according to claim 1, characterized in that: A circular groove (8) for wastewater to flow into is provided on one side of one of the support blocks (3), and the circular groove (8) is located at one end of the inlet of the conical ring (4).

3. The energy-saving hot water device for hospitals according to claim 2, characterized in that: The other support block (3) is provided with a plurality of annular grooves (9) communicating with the guide ring (5).

4. The energy-saving hot water device for hospitals according to claim 3, characterized in that: A water inlet pipe (10) is fixedly provided at the top of the tank body (1), and the water inlet pipe (10) is communicated with the tank body (1). A water outlet pipe (11) is fixedly provided at the bottom of the tank body (1), and the water outlet pipe (11) is communicated with the tank body (1).

5. The energy-saving hot water device for hospitals according to claim 4, characterized in that: A support member is fixedly provided at the bottom of the tank body (1).

6. The energy-saving hot water device for hospitals according to claim 5, characterized in that: The support member comprises a support frame (12), the top end of the support frame (12) being fixedly connected to the bottom end of the tank body (1).