A new heat exchange steam engine

Abstract

The utility model relates to the technical field of heat energy engineering discloses a novel heat exchange steam engine, including base, furnace body, combustion head, heat exchanger subassembly, separation cavity and condenser, the heat exchanger subassembly includes casing, tube sheet and tube bundle, the separation cavity is connected in the steam export of furnace body, the steam export of separation cavity is connected in the inlet end of tube bundle through the connecting end, the casing is provided with the water inlet end and the preheated water outlet that connects to the water inlet of furnace body, the outlet end of tube bundle is connected in the condenser, and this structure constructs the closed heat exchange path of high temperature steam preheating cold water, the tube bundle is composed of multiple heat exchange pipes, and the casing is provided with multiple staggered baffles that set up. The utility model solves the problem that high temperature steam waste heat is not effectively recovered, and the energy utilization efficiency is low, has the beneficial effect that heat efficiency is high, and heat exchange effect is good.

Description

Technical Field

[0001] This utility model relates to the field of thermal energy engineering technology, and in particular to a novel heat exchange steam engine. Background Technology

[0002] Existing steam engines or boilers consume a significant amount of energy in the process of generating steam by burning fuel to heat water. Although the design of the furnace itself is constantly being optimized to improve combustion efficiency, the high-temperature steam flowing out of the furnace still carries a large amount of latent heat and sensible heat after completing its main driving or heating tasks.

[0003] In traditional designs, the steam that has completed its work is usually directly fed into a condenser for cooling and recovery, or directly discharged into the environment. This approach results in the waste heat contained in the high-temperature steam not being fully utilized. In particular, if cold water is not preheated before being transported to the furnace for heating, the furnace must provide more heat to raise the water temperature, which directly increases fuel consumption, causes energy waste, and makes the overall energy utilization efficiency of the equipment low.

[0004] Therefore, this utility model proposes a novel heat exchange steam engine to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems of insufficient preheating of inlet water and ineffective recovery and utilization of waste heat from high-temperature steam in existing heat exchange steam engines, resulting in low energy utilization efficiency, this utility model aims to provide a new type of heat exchange steam engine with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a novel heat exchange steam engine, including a base, a furnace body fixedly mounted on the base, a compartment cavity fixedly connected to one side of the furnace body, a burner head fixedly connected to the compartment cavity, a heat exchanger frame fixedly mounted on the base, and a heat exchanger assembly fixedly mounted on the heat exchanger frame; the heat exchanger assembly includes a shell, tube sheets fixedly connected to both ends of the shell, a tube bundle disposed inside the shell, and both ends of the tube bundle sealed and fixed to the tube sheets.

[0007] The novel heat exchange steam engine also includes a separation chamber and a condenser.

[0008] The separation chamber is fixedly connected to the steam outlet of the furnace body.

[0009] Furthermore, the steam outlet of the separation chamber is connected to the inlet end of the tube bundle via a connecting pipe. The shell is provided with a water inlet end, and the upper part of the shell is provided with a preheated water outlet. The preheated water outlet is connected to the water inlet of the furnace body via a pipe, and the outlet end of the tube bundle is connected to the condenser via a pipe, thereby forming a heat exchange path for high-temperature steam to preheat cold water.

[0010] Preferably, the tube bundle consists of multiple heat exchange tubes. This arrangement increases the total flow cross-section and heat exchange surface area of ​​high-temperature steam within the multiple heat exchange tubes, which is beneficial for improving heat exchange efficiency.

[0011] Preferably, a baffle tube is also provided inside the housing. The baffle tube is used to guide the water flow path inside the housing, prolong the contact time between the water flow and the tube bundle, and enhance the turbulence of the water flow.

[0012] Preferably, as a further limitation of the above scheme, the baffle tube consists of multiple staggered baffles. The baffles are fixed to the inner wall of the shell perpendicular to the axial direction of the tube bundle, forcing the water flow to scour the tube bundle in a zigzag pattern within the shell to achieve the best heat exchange effect.

[0013] Preferably, a water level gauge is also fixedly installed on the outer wall of the housing. The water level gauge is used to monitor the liquid level inside the housing in real time to ensure sufficient water supply and guarantee the safe operation of the equipment.

[0014] Preferably, the separation chamber is vertically positioned at the top of the furnace body, and the steam outlet is the top steam outlet of the furnace body. This vertically positioned layout facilitates the use of gravity to achieve steam-water separation and improves the dryness of the steam.

[0015] Preferably, the burner head is connected to the outer wall of the compartment cavity via a flange. The flange connection method is structurally reliable and facilitates the installation, disassembly, and subsequent maintenance of the burner head.

[0016] Preferably, the condenser is fixedly mounted on the base and located downstream of the heat exchanger assembly. This position facilitates the smooth flow of steam into the condenser for final condensation and recovery after heat exchange.

[0017] This utility model has the following beneficial effects: 1. This utility model, by setting up a separation chamber, a heat exchanger assembly and a condenser, and constructing a steam circulation path, allows the high-temperature steam generated by the furnace to preheat the cold water in the shell by entering the tube bundle of the heat exchanger assembly before entering the condenser for recovery. This solves the problem of ineffective heat recovery and low energy utilization efficiency in the prior art, and achieves the technical effect of making full use of steam waste heat and improving thermal efficiency. 2. This utility model solves the problem of low heat exchange efficiency in the prior art by composing the tube bundle with multiple heat exchange tubes and setting baffles inside the shell, thereby increasing the heat exchange area, enhancing the fluid turbulence inside the shell, and thus improving the overall heat exchange efficiency. 3. This utility model solves the problem of insufficient monitoring of the operating status of core components in the prior art by setting a water level gauge and installing it on the outer wall of the heat exchanger assembly shell, and achieves the technical effect of real-time monitoring of water level and ensuring safe and stable operation of equipment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a novel heat exchange steam engine proposed in this utility model; Figure 2 This is a schematic diagram of the furnace body of a novel heat exchange steam engine proposed in this utility model; Figure 3 This is a schematic diagram of the structure of the condenser of a novel heat exchange steam engine proposed in this utility model; Figure 4 This is a schematic diagram of the heat exchange tube structure of a novel heat exchange steam engine proposed in this utility model.

[0019] Legend: 1. Furnace body; 2. Separation chamber; 3. Compartment chamber; 4. Combustion head; 5. Base; 6. Heat exchanger assembly; 601. Water level gauge; 602. Water inlet; 603. Tube sheet; 604. Tube bundle; 605. Shell; 606. Connection end; 607. Heat exchange tube; 608. Baffle tube; 7. Heat exchanger frame; 8. Condenser. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] Example: Please refer to Figures 1 to 4 This utility model provides a novel heat exchange steam engine, which aims to solve the problems in the prior art where the preheating of the inlet water is insufficient and the heat contained in the generated high-temperature steam is not effectively recovered and reused, resulting in heat loss and low overall energy utilization efficiency.

[0022] like Figure 1As shown, the novel heat exchange steam engine includes a base 5, a furnace body 1 and a heat exchanger frame 7 fixedly mounted on the base 5, and the base 5 is used to provide an installation foundation and support for the entire device.

[0023] like Figure 1 and Figure 2 As shown, the furnace body 1 is used to contain water and perform phase change heating. The compartment 3 is fixedly connected to one side of the furnace body 1. The burner head 4 is fixedly connected to the compartment 3. The burner head 4 is connected to the outer wall of the compartment 3 through a flange. The burner head 4 provides a heat source for the furnace body 1.

[0024] The heat exchanger frame 7 is used to fix the heat exchanger assembly 6. The heat exchanger assembly 6 is fixed on the heat exchanger frame 7. The heat exchanger assembly 6 includes a shell 605. Tube sheets 603 are fixedly connected to both ends of the shell 605. A tube bundle 604 is provided inside the shell 605. Both ends of the tube bundle 604 are sealed and fixed to the tube sheet 603.

[0025] To solve the above-mentioned technical problems, the novel heat exchange steam engine also includes a separation chamber 2 and a condenser 8, and a specific fluid circulation path is formed between the separation chamber 2, the condenser 8 and the aforementioned furnace body 1 and heat exchanger assembly 6.

[0026] Please refer to the following carefully. Figure 1 , Figure 2 and Figure 3 The separation chamber 2 is fixedly connected to the steam outlet of the furnace body 1 and is used to separate the steam generated by the furnace body 1. The separation chamber 2 is vertically set at the top of the furnace body 1 and the steam outlet is the top steam outlet of the furnace body 1. The steam outlet of the separation chamber 2 is connected to the inlet end of the tube bundle 604 of the heat exchanger assembly 6 through the connecting end 606 pipe.

[0027] Meanwhile, the shell 605 of the heat exchanger assembly 6 is provided with a water inlet 602, through which cold water enters the interior of the shell 605. The upper part of the shell 605 is provided with a preheated water outlet, which is connected to the water inlet of the furnace body 1 through a pipe to transport the preheated water in the shell 605 to the furnace body 1. The outlet end of the tube bundle 604 is connected to the condenser 8 through a pipe.

[0028] In the assembled state, the furnace body 1, the separation chamber 2, the tube bundle 604 of the heat exchanger assembly 6, and the condenser 8 constitute a steam circulation path. At the same time, the shell 605 of the heat exchanger assembly 6 and the furnace body 1 constitute a water circulation path. This heat exchange path of high-temperature steam preheating cold water ensures that heat is efficiently recovered and utilized, and improves the overall energy utilization efficiency.

[0029] For condenser 8, such as Figure 3As shown, the condenser 8 is fixedly mounted on the base 5 and located downstream of the heat exchanger assembly 6. The condenser 8 is used to perform final condensation treatment on the steam from the tube bundle 604.

[0030] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, to improve heat exchange efficiency, please refer to... Figure 4 The tube bundle 604 is composed of multiple heat exchange tubes 607. High-temperature steam flows dispersedly within the multiple heat exchange tubes 607, which greatly increases the total heat exchange contact area with the cold water outside the tubes.

[0031] As another preferred embodiment, in order to enhance the turbulence effect of the cold water inside the shell 605 and prolong the heat exchange time, a baffle tube 608 is also provided inside the shell 605. The baffle tube 608 is used to guide and constrain the water flow path inside the shell 605, forcing the water flow to laterally scour the outside of the tube bundle 604.

[0032] In the above-described embodiment with baffles 608, in order to achieve reliable flow guidance and support for the tube bundle 604, the baffles 608 are preferably multiple staggered baffles. The baffles are fixed to the inner wall of the housing 605 perpendicular to the axial direction of the tube bundle 604. The baffles have through holes for the heat exchange tubes 607 to pass through. Under the guidance of the baffles, the water flows in a zigzag pattern within the housing 605. At the same time, the baffles can also provide radial support for the multiple heat exchange tubes 607.

[0033] As another preferred embodiment, in order to monitor the water level in the heat exchanger assembly 6 in real time to ensure safe operation, a water level gauge 601 is also fixedly installed on the outer wall of the housing 605. The water level gauge 601 is used to ensure that the water level in the housing 605 is kept within a stable range.

[0034] As another preferred embodiment, in order to facilitate the installation and maintenance of the burner head 4, the burner head 4 is connected to the outer wall of the compartment cavity 3 through a flange, and the burner head 4 can be quickly disassembled and assembled by tightening or loosening the flange connection.

[0035] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, to improve heat exchange efficiency, please refer to... Figure 4 The tube bundle 604 is composed of multiple heat exchange tubes 607. High-temperature steam flows dispersedly within the multiple heat exchange tubes 607, which greatly increases the total heat exchange contact area with the cold water outside the tubes.

[0036] As another preferred embodiment, in order to enhance the turbulence effect of the cold water inside the shell 605 and prolong the heat exchange time, a baffle tube 608 is also provided inside the shell 605. The baffle tube 608 is used to guide and constrain the water flow path inside the shell 605, forcing the water flow to laterally scour the outside of the tube bundle 604.

[0037] In the above-described embodiment with baffles 608, in order to achieve reliable flow guidance and support for the tube bundle 604, the baffles 608 are preferably multiple staggered baffles. The baffles are fixed to the inner wall of the housing 605 perpendicular to the axial direction of the tube bundle 604. The baffles have through holes for the heat exchange tubes 607 to pass through. Under the guidance of the baffles, the water flows in a zigzag pattern within the housing 605. At the same time, the baffles can also provide radial support for the multiple heat exchange tubes 607.

[0038] As another preferred embodiment, in order to monitor the water level in the heat exchanger assembly 6 in real time to ensure safe operation, a water level gauge 601 is also fixedly installed on the outer wall of the housing 605. The water level gauge 601 is used to ensure that the water level in the housing 605 is kept within a stable range.

[0039] As another preferred embodiment, in order to facilitate the installation and maintenance of the burner head 4, the burner head 4 is connected to the outer wall of the compartment cavity 3 through a flange, and the burner head 4 can be quickly disassembled and assembled by tightening or loosening the flange connection.

[0040] The working principle of this utility model is as follows: When the equipment is running, the burner head 4 continuously supplies heat, and the heat enters the compartment 3 and is evenly transferred to the furnace body 1.

[0041] At the same time, cold water enters the interior of the shell 605 from the inlet 602 of the heat exchanger assembly 6. Under the guidance of the baffle plate 608 inside the shell 605, the water flows in a transverse zigzag shape and washes the outer wall of the tube bundle 604, which is composed of multiple heat exchange tubes 607.

[0042] The preheated water outlet located at the top of the shell 605 delivers the preheated water to the inlet of the furnace body 1. The water is heated and phase-changes into a steam mixture inside the furnace body 1. The steam mixture enters the separation chamber 2, which is vertically set at the top of the furnace body 1 and separates the steam. The separated pure steam enters the tube bundle 604 of the heat exchanger assembly 6 through the steam outlet of the separation chamber 2 and the connection end 606.

[0043] When high-temperature steam flows inside the tube bundle 604, it transfers its heat to the cold water outside the tube bundle 604 and inside the shell 605 through the tube wall of the heat exchange tube 607, thereby preheating the incoming water. After releasing heat, the steam is discharged from the outlet end of the tube bundle 604 and enters the condenser 8 for final condensation and recovery.

[0044] Throughout the entire process, the base 5 serves as the installation foundation, and the heat exchanger assembly 6 is firmly fixed by the heat exchanger bracket 7. The tube sheet 603 seals and fixes both ends of the tube bundle 604, and the water level gauge 601 monitors the water level inside the shell 605 in real time to ensure stable operation of the equipment.

[0045] By using high-temperature steam to preheat the cold water in the shell 605 within the tube bundle 604, and then sending the preheated water into the furnace body 1 for heating, this utility model solves the problem of ineffective heat recovery and low energy utilization efficiency in the prior art.

[0046] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A novel heat exchange steam engine, comprising: Base (5); The furnace body (1) is fixedly mounted on the base (5); The compartmentalized cavity (3) is fixedly connected to one side of the furnace body (1); The combustion head (4) is fixedly connected to the compartment cavity (3); The heat exchanger frame (7) is fixed on the base (5); A heat exchanger assembly (6) is fixed on the heat exchanger frame (7). The heat exchanger assembly (6) includes a shell (605), and tube sheets (603) are fixedly connected to both ends of the shell (605). A tube bundle (604) is provided inside the shell (605), and both ends of the tube bundle (604) are sealed and fixed to the tube sheet (603). The novel heat exchange steam engine is characterized by further comprising a separation chamber (2) and a condenser (8). The separation chamber (2) is fixedly connected to the steam outlet of the furnace body (1). The steam outlet of the separation chamber (2) is connected to the inlet end of the tube bundle (604) through a connecting end (606). A water inlet end (602) is provided on the shell (605). A preheated water outlet is provided on the upper part of the shell (605). The preheated water outlet is connected to the water inlet of the furnace body (1) through a pipe. The outlet end of the tube bundle (604) is connected to the condenser (8) through a pipe.

2. The novel heat exchange steam engine according to claim 1, characterized in that, The tube bundle (604) consists of multiple heat exchange tubes (607).

3. The novel heat exchange steam engine according to claim 1, characterized in that, The housing (605) is also provided with a baffle tube (608).

4. The novel heat exchange steam engine according to claim 3, characterized in that, The baffle tube (608) consists of multiple staggered baffles, which are fixed to the inner wall of the housing (605) perpendicular to the axial direction of the tube bundle (604).

5. The novel heat exchange steam engine according to claim 1, characterized in that, A water level gauge (601) is also fixedly installed on the outer wall of the housing (605).

6. The novel heat exchange steam engine according to claim 1, characterized in that, The separation chamber (2) is vertically arranged at the top of the furnace body (1), and the steam outlet is the top steam outlet of the furnace body (1).

7. The novel heat exchange steam engine according to claim 1, characterized in that, The burner head (4) is connected to the outer wall of the compartment cavity (3) via a flange.

8. The novel heat exchange steam engine according to claim 1, characterized in that, The condenser (8) is fixedly mounted on the base (5) and located downstream of the heat exchanger assembly (6).

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