Steam box with energy recovery function
By installing a steam generator, a pressure relief main pipe, a pressure relief branch pipe, and a steam heat exchanger in the steam chamber, the problem of unutilized latent heat of waste steam is solved, energy recovery and conservation are achieved, and the stability and safety of the steaming process are improved.
Patent Information
- Application Number
- CN202520043045.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-09
AI Technical Summary
The latent heat energy in the waste steam generated during the operation of existing steam ovens is not effectively utilized, resulting in energy waste.
A steam box system with a steam generator, a pressure relief main pipe, a pressure relief branch pipe, and a steam heat exchanger was designed. The steam chamber is connected through the pressure relief main pipe and the pressure relief branch pipe. The latent heat of the exhaust steam is recovered by the steam heat exchanger, and the stability and safety of the steam supply are ensured by a steam speed-increasing pump.
It achieves effective recovery of latent heat from spent steam, improves energy utilization, ensures the stability and safety of the steaming process, reduces production costs, and conforms to the concepts of environmental protection and sustainable development.
Smart Images
Figure CN223817335U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of steamer, concretely to a steam box with energy recovery. BACKGROUND
[0002] In many industries such as modern catering and food processing, the steamer is a widely used equipment. In the working process of the steamer, the steam generated by the steam generator is transported to each steaming chamber of the steamer to realize the steaming operation.
[0003] However, there is a significant problem in the operation process of the existing steamer: the steam in the steamer is usually directly discharged through the pressure relief valve after use. A large amount of latent heat energy is still contained in these discharged steam (i.e. waste steam), but it is not effectively utilized at present, causing great waste of energy.
[0004] With the continuous rise of energy cost and the increasing emphasis on energy saving and emission reduction, how to reduce energy waste and improve energy utilization has become a key problem to be solved in the relevant industry. Under this background, it is necessary to develop a steamer that can recycle and utilize the latent heat of waste steam generated in the working process of the steamer, so as to realize effective energy saving, reduce production cost, and also meet the concept of environmental protection and sustainable development. The steamer with energy recovery provided in the present application is designed to solve the problem of energy waste in the prior art. SUMMARY
[0005] The utility model provides a kind of steamer with energy recovery to solve the technical problems of the prior art.
[0006] The technical scheme adopted by the utility model is as follows: a steamer with energy recovery, comprising a bracket, a steamer fixed on the bracket, a steam generator, a pressure relief main pipe connected to the steam generator, and a steam heat exchanger connected to the pressure relief main pipe through a pressure relief branch pipe one, each steaming chamber of the steamer is connected to the steam generator through a steam pipe, and each steaming chamber of the steamer is also connected to the pressure relief main pipe through a pressure relief branch pipe two, a one-way valve is connected to the pressure relief branch pipe two, a steam valve is provided on the steam pipe, a pressure relief valve is connected to the outlet end of the pressure relief main pipe, and a steam speed-up pump is connected to one end of the steam generator.
[0007] Further, a plurality of exhaust and drainage pipes are connected to each steaming chamber of the steamer, and a plurality of exhaust and drainage pipes are connected to a collection outlet pipe, the collection outlet pipe has an exhaust end and a drainage end, and a control valve is connected to the exhaust and drainage pipe.
[0008] Further, the steam heat exchanger comprises:
[0009] a barrel, an inlet pipe and an outlet pipe are provided on the barrel;
[0010] A steam inlet and outlet assembly, comprising an air inlet manifold, an air outlet manifold, a circulating steam inlet pipe, a circulating steam outlet pipe and an exhaust pipe, the circulating steam inlet pipe and the circulating steam outlet pipe being in communication with the air inlet manifold through a tee connector one, and the exhaust pipe being in communication with the air outlet manifold through a tee connector two;
[0011] A plurality of heat exchange pipes, one end of which is in communication with the air inlet manifold, and the other end of which is in communication with the air outlet manifold, the plurality of heat exchange pipes being arranged at intervals along the height direction of the barrel.
[0012] Further, the bottom of the air inlet manifold is provided with a drain port.
[0013] Further, the heat exchange pipe comprises an inner ring pipe, an outer ring pipe in communication with the inner ring pipe, and an arc-shaped pipe for communicating the inner ring pipe and the outer ring pipe, the outer ring pipe being provided with a first connecting end for communication with the air inlet manifold and a second connecting end for communication with the air outlet manifold.
[0014] Further, it further comprises a condensate water collecting device, the drain port, the drain end and the condensate water outlet of the steam generator are all connected with the condensate water collecting device.
[0015] The beneficial effects of the utility model are:
[0016] I. Energy recovery and conservation:
[0017] The steam generator, the pressure relief main pipe, the pressure relief branch pipe and the steam heat exchanger are arranged in the steam oven. When the steam oven is running, the latent heat of the spent steam that is originally discharged through the pressure relief valve can be recovered through the dedicated steam heat exchanger. This design makes full use of the latent heat in the spent steam and avoids waste of energy. For example, in long-term continuous steaming operation, a large amount of spent steam is continuously generated. Through the system, the heat energy of these spent steam can be effectively captured and transferred to cold water to increase the temperature, realizing the recycling of energy.
[0018] II. Performance improvement of the equipment:
[0019] The steam generator provides steam for each steaming chamber of the steam oven through the steam pipe, and a steam speed-up pump is connected on the pressure relief main pipe. The steam speed-up pump can ensure the stable circulation and supply of steam in the system, avoiding the problem of poor steaming effect caused by insufficient or unstable steam pressure. Whether in the initial stage of starting the steam oven or in the long-term running process, sufficient and stable steam quantity can be ensured for each steaming chamber, thereby improving the quality and consistency of the steamed products.
[0020] In addition, the outlet end of the pressure relief main pipe is connected with a pressure relief valve, and the pressure relief branch pipe two is connected with a one-way valve, and the steam pipe is provided with a steam valve. The reasonable arrangement of these valves can effectively control the pressure and flow direction of the steam, prevent the equipment from being damaged or safety accidents caused by the excessive steam pressure. For example, when the pressure in the steaming box abnormally rises, the pressure relief valve can timely release the excess steam, and the one-way valve can prevent the steam from flowing backward, thereby ensuring the safe and reliable operation of the entire steaming box system.
[0021] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The utility model will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 It is the structural schematic diagram of the utility model.
[0023] Figure 2 It is the side schematic diagram of the utility model.
[0024] Figure 3 It is the bottom schematic diagram of the utility model.
[0025] Figure 4 It is the connection schematic diagram of the utility model.
[0026] Figure 5 It is the structural schematic diagram of the steam heat exchanger.
[0027] Figure 6 It is the internal schematic diagram of the steam heat exchanger.
[0028] Figure 7 It is Figure 6 The enlarged schematic diagram in A of the middle.
[0029] Figures 1-7 In the middle: 100, support; 101, steaming box; 102, steam generator; 116, pressure relief main pipe; 103, pressure relief branch pipe one; 104, steam heat exchanger; 105, steam pipe; 106, pressure relief branch pipe two; 107, one-way valve; 108, steam valve; 109, pressure relief valve; 110, steam speed increasing pump; 111, exhaust and drainage pipe; 112, collection outlet pipe; 113, exhaust end; 114, drainage end; 115, control valve; 117, condensate water outlet; 118, condensate water collecting device; 1, barrel body; 2, inlet pipe; 3, outlet pipe; 4, air inlet main pipe; 5, air outlet main pipe; 6, circulating steam inlet pipe; 7, circulating steam outlet pipe; 8, exhaust pipe; 9, three-way connecting piece one; 10, three-way connecting piece two; 11, heat exchange pipe; 16, drainage port; 17, inner circle pipe; 18, outer circle pipe; 19, arc pipe; 20, connecting end one; 21, connecting end two. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0031] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.
[0032] The present application provides a steam oven with energy recovery.
[0033] In the present embodiment, with reference to Figures 1-7 The steam oven with energy recovery comprises a support 100, a steam oven 101 fixed on the support 100, a steam generator 102, a pressure relief main pipe 116 connected with the steam generator 102, and a steam heat exchanger 104 connected with the pressure relief main pipe 116 through a pressure relief branch pipe 103. Each steam chamber of the steam oven 101 is connected with the steam generator 104 through a steam pipe 105, and each steam chamber of the steam oven is also connected with the pressure relief main pipe through a pressure relief branch pipe 106. A one-way valve 107 is connected on the pressure relief branch pipe 106. A steam valve 108 is arranged on the steam pipe. A pressure relief valve 109 is connected on the outlet end of the pressure relief main pipe. A steam speed increasing pump 110 is connected on one end of the pressure relief main pipe.
[0034] In the above technical solution, the steam oven is provided with a steam generator, a pressure relief main pipe, a pressure relief branch pipe, and a steam heat exchanger, forming a complete steam circulation and energy recovery system. Each steam chamber (including the upper box, the lower box, and the middle box) of the steam oven is connected with the steam generator through a steam pipe, ensuring that the steam chamber has stable steam supply for steaming operation.
[0035] Each steam chamber is connected with the pressure relief main pipe through a pressure relief branch pipe 106, and a one-way valve is arranged on the pressure relief branch pipe, which can ensure that the steam can only flow to the pressure relief main pipe, avoiding the reverse flow of steam causing equipment damage or affecting the steaming effect.
[0036] The steam valve on the steam pipe can accurately control the amount of steam entering the steam chamber, ensuring the controllability of the steaming process.
[0037] The pressure relief valve at the outlet end of the pressure relief main pipe ensures that the whole system operates within the safe pressure range, preventing accidents caused by excessive pressure.
[0038] The steam speed-up pump connected to the pressure relief main pipe helps to maintain the stable circulation of steam in the system, ensuring the timeliness and stability of steam supply, and improving the working efficiency of the steamer.
[0039] Among them, the steam generated in the real gas emitter and the steam generated in the steaming chamber enter the steam heat exchanger, which is used to heat the cold water in the steam heat exchanger, so as to achieve the purpose of steam recovery.
[0040] Specifically, each steaming chamber of the steamer is also connected with an exhaust and drainage pipe 111, and a plurality of exhaust and drainage pipes 111 are connected with a collection outlet pipe 112, which has an exhaust end 113 and a drainage end 114, and the exhaust and drainage pipe is connected with a control valve 115.
[0041] In this embodiment, the exhaust and drainage pipe is connected to each steaming chamber of the steamer, and the exhaust end and the drainage end of the collection outlet pipe are used for exhaust and drainage operations respectively, so that the excess gas and condensed water in the steaming chamber can be discharged in time.
[0042] The control valve on the exhaust and drainage pipe can flexibly control the timing and flow of exhaust and drainage according to the actual working condition of the steaming chamber, ensure the stability of the internal environment of the steaming chamber, and improve the steaming quality. At the same time, effectively discharging condensed water also helps to maintain the heat transfer efficiency of steam and reduce energy waste.
[0043] Specifically, the steam heat exchanger comprises:
[0044] A barrel body 1, the barrel body 1 is provided with an inlet pipe 2 and an outlet pipe 3;
[0045] A steam inlet and outlet assembly, the steam inlet and outlet assembly comprises an inlet pipe 4, an outlet pipe 5, a circulating steam inlet pipe 6, a circulating steam outlet pipe 7 and an exhaust pipe 8, the circulating steam inlet pipe 6 and the circulating steam outlet pipe 7 are communicated with the inlet pipe through a three-way connector 9, and the exhaust pipe is communicated with the outlet pipe through a three-way connector 10;
[0046] A plurality of heat exchange pipes 11, one end of the heat exchange pipe 11 is communicated with the inlet pipe, and the other end is communicated with the outlet pipe, and a plurality of heat exchange pipes are arranged along the height direction of the barrel body.
[0047] In this embodiment, the barrel body of the steam heat exchanger realizes the inlet and outlet of cold water through the inlet pipe and the outlet pipe, which is used to absorb the heat of the steam, and realizes the energy recovery.
[0048] The steam inlet manifold, the steam outlet manifold, the circulating steam inlet pipe, the circulating steam outlet pipe and the exhaust pipe in the steam inlet and outlet assembly form steam inlet and outlet and circulating channels, which ensure that the steam can fully enter the heat exchange pipes to exchange heat with the cold water.
[0049] The plurality of heat exchange pipes arranged along the height direction of the barrel increase the heat exchange area, improve the heat energy recovery efficiency, and enable more latent heat of the steam to be absorbed by the cold water, thereby achieving better energy recovery effect.
[0050] Specifically, the bottom of the steam outlet manifold is provided with a drain port 16.
[0051] The drain port arranged at the bottom of the steam inlet manifold can timely drain the condensed water generated in the steam circulation process. This can prevent the condensed water from accumulating in the steam inlet manifold, avoid affecting the flow rate and speed of the steam entering the heat exchange pipes, ensure the heat exchange efficiency and stability of the steam heat exchanger, and ensure the normal operation of the energy recovery system.
[0052] Specifically, the heat exchange pipe comprises an inner ring pipe 17, an outer ring pipe 18 in communication with the inner ring pipe, and an arc-shaped pipe 19 for connecting the inner ring pipe 17 and the outer ring pipe 18, and the outer ring pipe is provided with a first connecting end 20 for communication with the steam inlet manifold and a second connecting end 21 for communication with the steam outlet manifold.
[0053] The heat exchange pipe adopts the structural design of the inner ring pipe, the outer ring pipe and the arc-shaped pipe, which increases the flow path of the steam in the heat exchange pipe and prolongs the contact time of the steam and the cold water, thereby improving the heat exchange efficiency.
[0054] Specifically, the condensate collecting device 118 is further included, and the drain port, the drain end and the condensed water outlet 117 of the steam generator are connected with the condensate collecting device.
[0055] The condensate collecting device connects the drain port of the steam inlet manifold, the drain end of the collecting outlet pipe and the condensed water outlet of the steam generator, thereby realizing the centralized collection of the condensed water generated in the whole system.
[0056] This design facilitates the unified treatment of the condensed water, prevents the equipment from being corroded or the working environment from being humid due to the random discharge of the condensed water, and is also helpful for the reuse or reasonable disposal of the condensed water, thereby improving the environmental protection and operation stability of the whole steam tank system.
[0057] Note for all technical personnel: Although the utility model has been described according to the above specific implementation mode, the utility model idea is not limited to this utility model, and any modification using the utility model idea will be included in the patent protection range.
Claims
1. A steam oven with energy recovery, comprising a support frame and a steam oven fixed on the support frame, characterized in that: It also includes a steam generator, a pressure relief main pipe connected to the steam generator, and a steam heat exchanger connected to the pressure relief main pipe via a pressure relief branch pipe. Each steam chamber of the steam box is connected to the steam generator via a steam pipe, and each steam chamber of the steam box is also connected to the pressure relief main pipe via a pressure relief branch pipe. A one-way valve is connected to the pressure relief branch pipe. A steam valve is installed on the steam pipe. A pressure relief valve is connected to the outlet end of the pressure relief main pipe. A steam speed-increasing pump is connected to the end of the pressure relief main pipe located at the steam generator.
2. The steam oven with energy recovery according to claim 1, characterized in that: Each steaming chamber of the steam oven is also connected to an exhaust drain pipe, and multiple exhaust drain pipes are connected to a collection outlet pipe. The collection outlet pipe has an exhaust end and a drain end, and a control valve is connected to the exhaust drain pipe.
3. The steam oven with energy recovery according to claim 2, characterized in that... The steam heat exchanger includes: A barrel body, wherein an inlet pipe and an outlet pipe are provided on the barrel body; A steam inlet and outlet assembly, comprising an inlet main pipe, an outlet main pipe, a circulating steam inlet pipe, a circulating steam outlet pipe, and an exhaust pipe, wherein the circulating steam inlet pipe and the circulating steam outlet pipe are connected to the inlet main pipe via a tee connector one, and the exhaust pipe is connected to the outlet main pipe via a tee connector two; Several heat exchange tubes are provided, with one end of each heat exchange tube connected to the main air inlet pipe and the other end connected to the main air outlet pipe. The multiple heat exchange tubes are spaced apart along the height of the barrel.
4. The steam oven with energy recovery according to claim 3, characterized in that: A drain outlet is provided at the bottom of the main air intake pipe.
5. The steam oven with energy recovery according to claim 4, characterized in that: The heat exchange tube includes an inner circular tube, an outer circular tube communicating with the inner circular tube, and an arc-shaped tube for connecting the inner circular tube and the outer circular tube. The outer circular tube is provided with a connection end one for communicating with the air inlet main pipe and a connection end two for communicating with the air outlet main pipe.
6. The steam oven with energy recovery according to claim 4, characterized in that: It also includes a condensate collection device, and the drain outlet, drain end and condensate outlet of the steam generator are all connected to the condensate collection device.