Water-steam combined supply system

Abstract

The utility model relates to the technical field of heating and refrigerating air conditioners, and discloses a water-steam combined supply system which comprises a plate heat exchanger, a steam boiler is arranged at a hot water outlet of the plate heat exchanger and comprises a tank body, and a steam outlet pipe is fixedly installed in the top end of the tank body. A water inlet pipe is fixedly installed in the outer surface of the tank body, a heat exchanger is arranged on the inner cavity wall of the tank body, one end of the heat exchanger is connected with a hot water outlet in a plate heat exchanger, a connecting rod is arranged on the heat exchanger, and an L-shaped fixing plate is arranged on the connecting rod. The L-shaped fixing plate is connected with the inner cavity wall of the tank body through a fastener, the heat exchanger comprises a finned tube, and the outer surface of the finned tube is fixedly connected with the interior of the L-shaped fixing plate. The heat transfer capacity of the heat exchanger can be improved, the heat exchange efficiency is high, and expansion from single high-temperature hot water supply to high-temperature hot water and high-energy steam combined supply can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating and refrigeration and air conditioning, in particular to a water-steam combined supply system, specifically to a green energy-saving heat pump heat collection refrigeration water-steam combined supply system. Background Art

[0002] The water-steam combined supply system is a reliable energy-saving and environmentally friendly technology. It provides heating, cooling, domestic hot water and other services by transferring low-temperature heat in the air, water or soil environment into high-temperature heat. The system mainly consists of two parts: a heat pump and a collector. The heat pump realizes the transfer and utilization of heat through the processes of energy absorption, transmission and release, while the collector can collect environmental energy and convert low-temperature heat into high-temperature heat.

[0003] The existing patented water-steam cogeneration system, publication number CN108800647A, adopts the composite integration of carbon dioxide heat pump + gas secondary heating technology in this implementation, and carries out the integrated design of hot water and steam, realizing the expansion from single high-temperature hot water supply to high-temperature hot water and high-energy steam cogeneration. However, the heat transfer capacity of the heat exchanger of the above device is low, and the heat exchange efficiency is low. Therefore, we propose a water-steam cogeneration system. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a water-steam cogeneration system, which has the advantages of improving the heat transfer capacity of the plate heat exchanger and having high heat exchange efficiency, thereby solving the problem of low heat transfer capacity and low heat exchange efficiency of the heat exchanger of the above-mentioned device.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of improving the heat transfer capacity of the heat exchanger and achieving high heat exchange efficiency, the utility model provides the following technical solutions: a water-steam cogeneration system, comprising a plate heat exchanger, a steam boiler is arranged at the hot water outlet on the plate heat exchanger, the steam boiler comprises a tank body, a steam outlet pipe is fixedly installed inside the top of the tank body, a water inlet pipe is fixedly installed inside the outer surface of the tank body, a heat exchanger is arranged on the inner cavity wall of the tank body, one end of the heat exchanger is connected to the hot water outlet on the plate heat exchanger, a connecting rod is arranged on the heat exchanger, an L-shaped fixing plate is arranged on the connecting rod, the L-shaped fixing plate is connected to the inner cavity wall of the tank body through a fastener, and a hot water and steam integrated design is carried out by adopting a composite integration of carbon dioxide heat pump + gas secondary heating technology, realizing the expansion from a single high-temperature hot water supply to a high-temperature hot water and high-energy steam cogeneration, and in view of the disorderly emission of cold air byproducts generated by the heat pump and the ineffective waste of waste heat generated by gas secondary heating, the system performs heat pump recycling on the waste waste heat and collects and comprehensively utilizes the enriched cold air, further improving the comprehensive energy efficiency of the system;

[0008] The heat exchanger includes a fin tube, the outer surface of the fin tube is fixedly connected to the inside of the L-shaped fixing plate, one end of the fin tube is provided with a heat exchange inlet, and one end of the fin tube is provided with a heat exchange outlet, and the heat exchange inlet and the heat exchange outlet both extend out of the outer surface of the tank body, the heat exchange inlet is connected to the hot water outlet on the plate heat exchanger, the outer surface of the fin tube is provided with fins, and the inside of the fins is movably sleeved with the outer surface of the connecting rod to improve the heat transfer capacity of the heat exchanger, and the heat exchange efficiency is high.

[0009] As a preferred technical solution of the utility model, the fin tube is in a snake shape and is made of stainless steel or copper. The fin tube is made of stainless steel or copper with high thermal conductivity, high strength and high corrosion resistance, so as to improve the heat transfer capacity of the heat exchanger and increase the heat exchange efficiency.

[0010] As a preferred technical solution of the utility model, a contact ring is fixedly installed on one side of the fin, and the inner cavity of the contact ring is movably sleeved with the outer surface of the fin tube to improve the heat transfer capacity of the heat exchanger and achieve high heat exchange efficiency;

[0011] A first sleeve hole is provided inside the fin, and an inner cavity of the first sleeve hole is movably sleeved with an outer surface of the connecting rod to facilitate sleeve connection of the connecting rod.

[0012] As a preferred technical solution of the utility model, the fins are made of copper or aluminum. By using copper or aluminum with high thermal conductivity, high strength and high corrosion resistance to make the fins, the heat transfer capacity of the heat exchanger is improved and the heat exchange efficiency is high.

[0013] As a preferred technical solution of the utility model, a through hole is opened inside the L-shaped fixing plate, and the inner cavity wall of the through hole is fixedly sleeved with the outer surface of the fin tube so that the fin tube can pass through the L-shaped fixing plate;

[0014] A second sleeve hole is provided inside the L-shaped fixing plate, and an inner cavity of the second sleeve hole is movably sleeved with an outer surface of the connecting rod so that the connecting rod can pass through the L-shaped fixing plate.

[0015] As a preferred technical solution of the utility model, a fixing hole is opened inside the L-shaped fixing plate, and the inner cavity of the fixing hole is movably connected to the fastener to facilitate fixing the L-shaped fixing plate.

[0016] As a preferred technical solution of the utility model, the L-shaped fixing plate is made of aluminum. By adopting aluminum with high thermal conductivity, high strength and high corrosion resistance, the heat transfer capacity of the heat exchanger is improved and the heat exchange efficiency is high.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a water-steam cogeneration system, which has the following beneficial effects:

[0019] The water-steam cogeneration system allows hot water heated by the heating cycle to enter the steam boiler through the water inlet pipe for heating, and the hot water outlet on the plate heat exchanger enters the finned tubes through the heat exchange inlet. At the same time, the finned tubes are made of stainless steel or copper with high thermal conductivity, high strength and high corrosion resistance, and the fins are made of copper or aluminum with high thermal conductivity, high strength and high corrosion resistance, so as to improve the heat transfer capacity of the heat exchanger and achieve high heat exchange efficiency. At the same time, the carbon dioxide heat pump + gas secondary heating technology is compositely integrated to carry out the integrated design of hot water and steam, realizing the expansion from a single high-temperature hot water supply to a high-temperature hot water and high-energy steam cogeneration. In view of the disorderly emission of cold air byproducts generated by the heat pump and the ineffective waste of waste heat generated by the secondary heating of gas, the system recycles the waste heat by heat pump and collects and comprehensively utilizes the enriched cold air, further improving the overall energy efficiency of the system. The device can not only improve the heat transfer capacity of the heat exchanger, but also has high heat exchange efficiency, but also realize the expansion from a single high-temperature hot water supply to a high-temperature hot water and high-energy steam cogeneration. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional diagram of the steam boiler of the utility model;

[0021] Figure 2 This is a three-dimensional diagram of the plate heat exchanger of the utility model;

[0022] Figure 3 This is a three-dimensional diagram of the fin tube of the utility model;

[0023] Figure 4 This is a three-dimensional diagram of the fin of the utility model

[0024] Figure 5 It is a three-dimensional diagram of the L-shaped fixing plate of the utility model.

[0025] In the figure: 21, tank body; 22, steam outlet pipe; 23, water inlet pipe; 24, heat exchanger; 241, fin tube; 242, heat exchange inlet; 243, heat exchange outlet; 244, fin; 2441, contact ring; 2442, first sleeve hole; 25, connecting rod; 26, L-shaped fixing plate; 261, through hole; 262, second sleeve hole; 263, fixing hole. DETAILED DESCRIPTION

[0026] 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.

[0027] Reference Figure 1-5 A water-steam cogeneration system is provided, including a plate heat exchanger, a steam boiler is arranged at the hot water outlet on the plate heat exchanger, the steam boiler includes a tank body 21, a steam outlet pipe 22 is fixedly installed inside the top of the tank body 21, a water inlet pipe 23 is fixedly installed inside the outer surface of the tank body 21, a heat exchanger 24 is arranged on the inner cavity wall of the tank body 21, one end of the heat exchanger 24 is connected to the hot water outlet on the plate heat exchanger, a connecting rod 25 is arranged on the heat exchanger 24, an L-shaped fixing plate 26 is arranged on the connecting rod 25, and the L-shaped fixing plate 26 is connected to the inner cavity wall of the tank body 21 through a fastener.

[0028] The heat exchanger 24 includes a fin tube 241, the outer surface of the fin tube 241 is fixedly connected to the inside of the L-shaped fixing plate 26, a heat exchange inlet 242 is provided at one end of the fin tube 241, and a heat exchange outlet 243 is provided at one end of the fin tube 241. At the same time, the heat exchange inlet 242 and the heat exchange outlet 243 both extend out of the outer surface of the tank body 21, the heat exchange inlet 242 is connected to the hot water outlet on the plate heat exchanger, and the outer surface of the fin tube 241 is provided with a fin 244, and the inside of the fin 244 is movably connected to the outer surface of the connecting rod 25.

[0029] The fin tube 241 is in a snake shape and is made of stainless steel or copper.

[0030] A contact ring 2441 is fixedly mounted on one side of the fin 244, and the inner cavity of the contact ring 2441 is movably sleeved with the outer surface of the fin tube 241;

[0031] A first sleeve hole 2442 is defined inside the fin 244 , and an inner cavity of the first sleeve hole 2442 is movably sleeved with an outer surface of the connecting rod 25 .

[0032] The fins 244 are made of copper or aluminum.

[0033] A through hole 261 is formed inside the L-shaped fixing plate 26, and the inner wall of the through hole 261 is fixedly sleeved with the outer surface of the fin tube 241;

[0034] A second sleeve hole 262 is defined inside the L-shaped fixing plate 26 , and an inner cavity of the second sleeve hole 262 is movably sleeved with an outer surface of the connecting rod 25 .

[0035] A fixing hole 263 is formed inside the L-shaped fixing plate 26 , and an inner cavity of the fixing hole 263 is movably connected to the fastener.

[0036] The L-shaped fixing plate 26 is made of aluminum.

[0037] During use, the hot water heated by the heating cycle enters the steam boiler through the water inlet pipe 23 for heating, and the hot water outlet on the plate heat exchanger enters the fin tube 241 through the heat exchange inlet 242. At the same time, the fin tube 241 is made of stainless steel or copper with high thermal conductivity, high strength and high corrosion resistance, and the fin 244 is made of copper or aluminum with high thermal conductivity, high strength and high corrosion resistance to improve the heat transfer capacity of the heat exchanger 24, and the heat exchange efficiency is high. At the same time, the carbon dioxide heat pump + gas secondary heating technology is compositely integrated to carry out the integrated design of hot water and steam, realizing the expansion from a single high-temperature hot water supply to a high-temperature hot water and high-energy steam co-supply. In view of the disordered emission of cold air by-products generated by the heat pump and the ineffective waste of waste heat generated by the secondary heating of gas, the system recycles the waste heat by heat pump and collects and comprehensively utilizes the enriched cold air, further improving the overall energy efficiency of the system. The device can not only improve the heat transfer capacity of the heat exchanger 24, but also has high heat exchange efficiency, but also realize the expansion from a single high-temperature hot water supply to a high-temperature hot water and high-energy steam co-supply.

[0038] 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-steam cogeneration system, comprising a plate heat exchanger, wherein a steam boiler is provided at the hot water outlet of the plate heat exchanger, characterized in that: The steam boiler comprises a tank body (21), a steam outlet pipe (22) is fixedly installed inside the top end of the tank body (21), a water inlet pipe (23) is fixedly installed inside the outer surface of the tank body (21), a heat exchanger (24) is arranged on the inner cavity wall of the tank body (21), one end of the heat exchanger (24) is connected to the hot water outlet on the plate heat exchanger, a connecting rod (25) is arranged on the heat exchanger (24), an L-shaped fixing plate (26) is arranged on the connecting rod (25), and the L-shaped fixing plate (26) is connected to the inner cavity wall of the tank body (21) through a fastener; The heat exchanger (24) comprises a fin tube (241), the outer surface of the fin tube (241) is fixedly connected to the inside of the L-shaped fixing plate (26), one end of the fin tube (241) is provided with a heat exchange inlet (242), and one end of the fin tube (241) is provided with a heat exchange outlet (243), and the heat exchange inlet (242) and the heat exchange outlet (243) both extend out of the outer surface of the tank body (21), the heat exchange inlet (242) is connected to the hot water outlet on the plate heat exchanger, and the outer surface of the fin tube (241) is provided with a fin (244), and the inside of the fin (244) is movably connected to the outer surface of the connecting rod (25).

2. The water-steam cogeneration system according to claim 1, characterized in that: The fin tube (241) is in a snake shape and is made of stainless steel or copper.

3. The water-steam cogeneration system according to claim 1, characterized in that: A contact ring (2441) is fixedly mounted on one side of the fin (244), and an inner cavity of the contact ring (2441) is movably sleeved with an outer surface of the fin tube (241); A first sleeve hole (2442) is provided inside the fin (244), and an inner cavity of the first sleeve hole (2442) is movably sleeved with an outer surface of the connecting rod (25).

4. The water-steam cogeneration system according to claim 3, characterized in that: The fins (244) are made of copper or aluminum.

5. The water-steam cogeneration system according to claim 1, characterized in that: A through hole (261) is provided inside the L-shaped fixing plate (26), and an inner cavity wall of the through hole (261) is fixedly sleeved with an outer surface of the fin tube (241); A second sleeve hole (262) is provided inside the L-shaped fixing plate (26), and an inner cavity of the second sleeve hole (262) is movably sleeved with an outer surface of the connecting rod (25).

6. The water-steam cogeneration system according to claim 5, characterized in that: A fixing hole (263) is provided inside the L-shaped fixing plate (26), and an inner cavity of the fixing hole (263) is movably connected to a fastener.

7. The water-steam cogeneration system according to claim 6, characterized in that: The L-shaped fixing plate (26) is made of aluminum.

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