Hotel oil smoke pipeline air conditioner heat compensation system
By setting up a dual heat exchanger and a fluid heat recovery system in the hotel's central air conditioning system and using the heat of the oil fume pipeline to heat the refrigerant, the problem of high energy consumption in the cold season is solved, and efficient energy utilization and pollution reduction are achieved.
Patent Information
- Application Number
- CN202422043337.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The hotel central air conditioner consumes a lot of energy by compressing and heating through compressors in the cold winter, and the existing technology has failed to effectively utilize the waste heat resources in the hotel's oil fume pipeline.
Design the air conditioning heating system for hotel oil fume pipes, including central air conditioning system and hotel oil fume pipes, set up dual heat exchangers and fluid heat recovery systems, use switching valves to switch heat exchangers in heating and cooling modes, and combine heat exchangers to collect heat from the oil fume pipes to heat the refrigerant to reduce hot flue gas emissions.
By collecting heat from the oil fume pipeline, saving energy consumption of the central air-conditioning system, reducing thermal pollution, improving heat exchange efficiency, and achieving efficient energy utilization.
Smart Images
Figure CN223216402U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air conditioning, in particular to an air conditioning heat supplement technology. Background Art
[0002] The hotel's central air-conditioning system usually consumes a lot of electricity. The refrigerant absorbs heat from the outside in the evaporator, then passes through the compressor and is compressed into high-temperature and high-pressure gas. Finally, it releases heat in the condenser indoors, thereby heating the indoor air.
[0003] In the cold winter, the outside air is very cold, and relying on compressor compression and heating consumes a lot of energy. However, there is a lot of waste heat from oil smoke in the hotel's oil smoke pipes. Using this heat to supply air conditioning can save a lot of energy. Utility Model Content
[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the present invention.
[0005] In view of the problems existing in the above-mentioned prior art, the present utility model is proposed.
[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:
[0007] Hotel fume duct air conditioning and heating system, including central air conditioning system and hotel fume duct;
[0008] The central air-conditioning system includes an indoor unit and an outdoor unit;
[0009] The outdoor unit has a heat exchange system, wherein the heat exchange system has a heat exchanger, and a refrigerant pipe is provided in the heat exchanger;
[0010] The heat exchange system has at least two heat exchangers;
[0011] The heat exchange system has a switching valve for switching between the two heat exchangers;
[0012] One of the heat exchangers has a high-temperature heat source pipe and a refrigerant pipe;
[0013] Also included is a fluid heat recovery system, the fluid heat recovery system including a heat exchanger;
[0014] The heat exchanger is installed on the hotel's oil fume duct;
[0015] The heat exchanger has a high-temperature fluid outlet and a low-temperature fluid inlet;
[0016] The high-temperature fluid outlet is connected to the inlet of the high-temperature heat source pipeline;
[0017] The outlet of the high-temperature heat source pipeline is connected to the low-temperature fluid inlet.
[0018] The above design, first of all, the central air-conditioning system is provided with two heat exchangers, and a switching valve is provided to switch the two heat exchangers, so that the central air-conditioning can select different heat exchangers to work in heating and cooling modes. Each radiator is responsible for heating or cooling independently, thereby improving the working efficiency of the heat exchanger; secondly, a fluid heat recovery system is also provided. When the central air-conditioning system is heating, the heat recovery system collects heat from the hotel's oil fume pipe to heat the refrigerant pipe in the heat exchanger, saving the energy required for the central air-conditioning system to compress and heat through the compressor, thereby achieving the purpose of energy saving; finally, the heat exchanger cools the hotel's oil fume pipe, reducing hot flue gas emissions and reducing thermal pollution.
[0019] Preferably, the heat exchanger includes a pipe wrapped around the outer wall of the hotel's oil fume duct, called a wrapped heating pipe; by providing the wrapped heating pipe, it is convenient for the heat exchanger to collect heat from the hotel's oil fume duct.
[0020] Preferably, the outer side of the wrapped heating pipe away from the outer wall of the hotel's oil fume pipe is wrapped with a thermal insulation cotton layer; by providing the thermal insulation cotton layer, the heat of the wrapped heating pipe is prevented from dissipating to the outside, thereby improving the heat collection effect of the wrapped heating pipe.
[0021] Preferably, the length of the structure wrapped around the heating pipe is greater than 1.5m, and the length of the thermal insulation cotton layer is greater than 2m; the length of the wrapped heating pipe is ensured so that the fluid in the heat exchanger has sufficient heating time and sufficient heat is collected by the wrapped heating pipe.
[0022] Preferably, the hotel oil fume duct is made of metal; the wrapped heating duct is made of copper; metal sheets are arranged on the outer wall of the hotel oil fume duct, and the metal sheets are arranged along the trajectory of the heating duct; the hotel oil fume duct made of metal and the wrapped heating duct made of copper ensure the heat conduction effect, so that the heat exchanger can collect enough heat, and the metal sheets are arranged on the outer wall of the hotel oil fume duct to ensure that the contact area between the outer wall of the hotel oil fume duct and the wrapped heating duct is increased, thereby improving the heating effect.
[0023] Preferably, the heat exchanger includes a pipe surrounding the hotel's oil fume duct, called a built-in heating pipe; the built-in heating pipe is in direct contact with the high-temperature oil fume in the hotel's oil fume duct, thereby improving the heating effect of the fluid in the heat exchanger.
[0024] Preferably, the length of the structure formed by the built-in heating pipe is greater than 1m; the length of the built-in heating pipe is ensured so that the fluid in the heat exchanger has sufficient heating time and the heat exchanger can collect sufficient heat.
[0025] Preferably, the heat exchanger is a plate heat exchanger; the plate heat exchanger facilitates heat exchange between the refrigerant pipe and the high-temperature heat source pipe.
[0026] Preferably, the heat exchanger is provided with a fan, which blows toward the high-temperature heat source pipe and the refrigerant pipe through the gaps between the plates of the plate heat exchanger; the fan improves the heat exchange efficiency between the refrigerant pipe and the high-temperature heat source pipe.
[0027] Preferably, the switching valve is an electromagnetically controlled switching valve; the electromagnetically controlled switching valve can realize automatic switching between heating and cooling, thereby improving the convenience of using a central air conditioner with two heat exchangers. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:
[0029] Figure 1 This is a schematic diagram of the overall structure of an internally wrapped heating pipe type of a hotel oil fume duct air conditioning heating system according to an embodiment of the present invention;
[0030] Figure 2 A schematic diagram of the switching principle structure of a switching valve of a hotel oil fume duct air conditioning and heating system according to an embodiment of the present invention;
[0031] Figure 3 This is a schematic diagram of the overall structure of a hotel fume duct air conditioning heating system with built-in heating pipes according to an embodiment of the present invention;
[0032] Figure 4 The utility model provides a hotel oil fume duct air conditioning heating system according to an embodiment of the present invention. Figure 3 Schematic diagram of the internal structure of the hotel fume duct. DETAILED DESCRIPTION
[0033] In order to make the above-mentioned objects, features and advantages of the present invention more understandable, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.
[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0035] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.
[0036] Furthermore, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in less than one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it necessarily refer to a separate or selective embodiment that is mutually exclusive with other embodiments.
[0037] Example 1
[0038] Reference Figure 1 and Figure 2 The hotel oil fume duct air conditioning and heating system includes a central air conditioning system 1 and a hotel oil fume duct 2.
[0039] The central air-conditioning system 1 includes an indoor unit 11 and an outdoor unit; the outdoor unit has a heat exchange system, the heat exchange system has a heat exchanger 12, and a refrigerant pipe is provided in the heat exchanger 12; the heat exchange system has at least two heat exchangers 12; the heat exchange system has a switching valve 13 for switching the two heat exchangers 12; one of the heat exchangers 12 has a high-temperature heat source pipe and a refrigerant pipe; it also includes a fluid heat recovery system 3, the fluid heat recovery system 3 includes a heat exchanger; the heat exchanger is provided on the hotel oil fume pipe 2; the heat exchanger has a high-temperature fluid outlet and a low-temperature fluid inlet; the high-temperature fluid outlet is connected to the inlet of the high-temperature heat source pipe; the outlet of the high-temperature heat source pipe is connected to the low-temperature fluid inlet ; First, the central air-conditioning system 1 is provided with two heat exchangers 12, and a switching valve 13 for switching the two heat exchangers 12 is provided, so that the central air-conditioning can select different heat exchangers 12 to work in heating and cooling modes, and each radiator is responsible for heating or cooling alone, thereby improving the working efficiency of the heat exchanger 12; secondly, a fluid heat recovery system 3 is also provided. When the central air-conditioning system 1 is heating, the heat recovery system collects heat from the hotel oil fume pipe 2 to heat the refrigerant pipe in the heat exchanger 12, saving the power of compression and heating of the compressor, thereby achieving the purpose of saving energy; finally, the heat exchanger cools the hotel oil fume pipe 2, thereby reducing hot flue gas emissions and reducing thermal pollution.
[0040] The fluid heat recovery system 3 further includes a pump 34 for driving the fluid to flow between the heat exchanger and the high-temperature heat source pipeline. The pump 34 is arranged behind the low-temperature fluid inlet of the heat exchanger.
[0041] The heat exchanger includes a pipe wrapped around the outer wall of the hotel fume duct 2, called a wrapped heating pipe 31; by providing the wrapped heating pipe 31, it is convenient for the heat exchanger to collect heat from the hotel fume duct 2.
[0042] The outer side of the wrapped heating pipe 31 away from the outer wall of the hotel fume pipe 2 is wrapped with a thermal insulation cotton layer; by providing the thermal insulation cotton layer, the heat of the wrapped heating pipe 31 is prevented from dissipating to the outside, thereby improving the heat collection effect of the wrapped heating pipe 31.
[0043] The length of the structure wrapped around the heating pipe 31 is greater than 1.5m, and the length of the thermal insulation cotton layer is greater than 2m; the length of the wrapped heating pipe 31 is ensured so that the fluid in the heat exchanger has sufficient heating time and sufficient heat is collected by the wrapped heating pipe 31.
[0044] The hotel oil fume duct 2 is made of a metal pipe; the wrapped heating pipe 31 is made of a metal copper pipe; metal sheets 33 are arranged on the outer wall of the hotel oil fume duct 2, and the metal sheets are arranged along the heating pipe track 31; the hotel oil fume duct 2 is made of a metal material and the wrapped heating pipe 31 is made of a metal copper material to ensure the heat conduction effect, so that the heat exchanger can collect enough heat. The metal sheets 33 are arranged on the outer wall of the hotel oil fume duct 2 to ensure that the contact area between the outer wall of the hotel oil fume duct 2 and the wrapped heating pipe 31 is increased, thereby improving the heating effect.
[0045] The heat exchanger 12 is a plate-type heat exchanger 12 ; the plate-type heat exchanger 12 facilitates heat exchange between the refrigerant pipe and the high-temperature heat source pipe.
[0046] The heat exchanger 12 is provided with a fan, which blows toward the high-temperature heat source pipe and the refrigerant pipe through the gaps between the plates of the plate heat exchanger 12; the fan improves the heat exchange efficiency between the refrigerant pipe and the high-temperature heat source pipe.
[0047] The switching valve 13 adopts an electromagnetically controlled switching valve 13; the electromagnetically controlled switching valve 13 can realize automatic switching between heating and cooling, improving the convenience of using the central air-conditioning with two heat exchangers 12; the switching valve 13 can connect the refrigerant of the central air-conditioning system 1 with the heat exchanger 12 having a cold source (such as natural gas whose temperature drops sharply after diffusion and pressure reduction) when the air-conditioning is cooling, and the switching valve 13 can connect the refrigerant of the central air-conditioning system 1 with the heat exchanger 12 having a high-temperature heat source pipeline when the air-conditioning is heating, greatly improving the energy required by the central air-conditioning system 1.
[0048] During use, when the hotel's central air-conditioning system 1 heats the indoor space, the refrigerant of the air conditioner absorbs heat in the refrigerant pipe of the heat exchanger 12, and the switching valve 13 switches to the heat exchanger 12 with the high-temperature heat source pipe. The pump 34 of the fluid heat recovery system 3 drives the fluid to circulate between the heat exchanger and the high-temperature heat source pipe. The circulating fluid flows around the outer wall of the hotel's oil fume pipe 2 by wrapping around the heating pipe 31, and the heating effect is improved by the heating plate and insulation cotton. The flowing fluid transports the heat in the hotel's oil fume pipe 2 to the high-temperature heat source pipe in the heat exchanger 12. The high-temperature heat source pipe heats the refrigerant pipe in the heat exchanger 12, saving the energy required for compression and heating by the compressor of the central air-conditioning system 1, thereby achieving the purpose of saving energy.
[0049] Example 2
[0050] Reference Figure 2-Figure 3 , which is the second embodiment of the present utility model, and this embodiment is based on the previous embodiment.
[0051] The heat exchanger includes a pipe surrounding the hotel fume duct 2, called a built-in heating pipe 32; the built-in heating pipe 32 is in direct contact with the high-temperature fume in the hotel fume duct 2, thereby improving the heating effect of the fluid in the heat exchanger.
[0052] The length of the structure formed by the built-in heating pipe 32 is greater than 1m; the length of the built-in heating pipe 32 is ensured so that the fluid in the heat exchanger has sufficient heating time and the heat exchanger can collect sufficient heat.
[0053] During use, when the hotel's central air-conditioning system 1 heats the room, the pump 34 of the fluid heat recovery system 3 drives the fluid to circulate between the heat exchanger and the high-temperature heat source pipe. The circulating fluid flows in the hotel's oil fume pipe 2 through the built-in heating pipe 32. The high-temperature flue gas continuously heats the built-in heating pipe 32, so that the fluid of the fluid heat recovery system 3 obtains a large amount of heat in the hotel's oil fume pipe 2. The structure surrounded by the built-in heating pipe 32 lengthens the circulation length of the high-temperature heat source pipe, improves the heating efficiency, and ensures that the heat exchanger collects enough heat to supply the heat exchanger 12 to heat the refrigerant in the refrigerant pipe.
[0054] It is important to note that the configuration and arrangement of the present application, as illustrated in various exemplary embodiments, are illustrative only. Although only a few embodiments are described in detail in this disclosure, those reading this disclosure should readily appreciate that numerous modifications are possible without materially departing from the novel aspects and advantages of the subject matter described herein. For example, variations in the size, dimensions, structure, shape, and proportions of various components, as well as parameter values such as temperature, pressure, mounting arrangements, use of materials, color, and orientation are possible. For example, components shown as integrally formed may be constructed from multiple parts or components, the positions of components may be inverted or otherwise altered, and the nature, number, or position of discrete components may be modified or changed. Therefore, all such modifications are intended to be encompassed within the scope of this disclosure. The order or sequence of any process or method steps may be altered or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover structures that perform the functions described herein, and not only structural equivalence but also structural equivalents. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of this disclosure. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0055] Additionally, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiment may not be described, ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention.
[0056] It should be understood that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, the development effort will be a routine task of design, fabrication, and production without undue experimentation.
[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.
Claims
1. The hotel fume duct air conditioning and heat supplement system includes a central air conditioning system and a hotel fume duct, and is characterized by: The central air-conditioning system includes an indoor unit and an outdoor unit; The outdoor unit has a heat exchange system, wherein the heat exchange system has a heat exchanger, and a refrigerant pipe is provided in the heat exchanger; The heat exchange system has at least two heat exchangers; The heat exchange system has a switching valve for switching between the two heat exchangers; One of the heat exchangers has a high-temperature heat source pipe and a refrigerant pipe; Also included is a fluid heat recovery system, the fluid heat recovery system including a heat exchanger; The heat exchanger is installed on the hotel's oil fume duct; The heat exchanger has a high-temperature fluid outlet and a low-temperature fluid inlet; The high-temperature fluid outlet is connected to the inlet of the high-temperature heat source pipeline; The outlet of the high-temperature heat source pipeline is connected to the low-temperature fluid inlet.
2. The hotel fume duct air conditioning heat supplement system according to claim 1, characterized in that: The heat exchanger includes a pipe wrapped around the outer wall of the hotel oil fume pipe, which is called a wrapped heating pipe.
3. The hotel fume duct air conditioning heat supplement system according to claim 2, characterized in that: The outer side of the wrapped heating pipe away from the outer wall of the hotel oil fume pipe is wrapped with a heat-insulating cotton layer.
4. The hotel fume duct air conditioning heat supplement system according to claim 3, characterized in that: The length of the structure wrapped around the heating pipe is greater than 1.5m The length of the thermal insulation cotton layer is greater than 2m.
5. The hotel fume duct air conditioning heat supplement system according to claim 2, characterized in that: The hotel oil fume pipe is made of metal; The wrapped heating pipe is made of copper. Metal sheets are arranged on the outer wall of the hotel oil fume duct, and the metal sheets are arranged along the track of the heating duct.
6. The hotel fume duct air conditioning heat supplement system according to claim 1, characterized in that: The heat exchanger includes a pipe surrounding the hotel's oil fume duct, which is called a built-in heating pipe.
7. The hotel oil fume duct air conditioning heat supplement system according to claim 6, characterized in that: The length of the structure formed by the built-in heating pipe is greater than 1m.
8. The hotel oil fume duct air conditioning heat supplement system according to claim 1, characterized in that: The heat exchanger is a plate heat exchanger.
9. The hotel oil fume duct air conditioning heat supplement system according to claim 8, characterized in that: The heat exchanger is provided with a fan, and the fan blows toward the high-temperature heat source pipe and the refrigerant pipe through the gaps between the plates of the plate heat exchanger.
10. The hotel oil fume duct air conditioning heat supplement system according to claim 1, characterized in that: The switching valve is an electromagnetically controlled switching valve.