Steam recovery device for heat supply of circulating heat pump in papermaking industry
By designing a steam recovery device in the circulating heat pump heating system of the paper industry, the problem of insufficient heat source steam pressure was solved, and the efficient recovery and reuse of low-pressure steam was achieved, improving energy efficiency and avoiding heat energy waste.
Patent Information
- Application Number
- CN202520222074.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-02-12
AI Technical Summary
In existing circulating heat pump heating systems in the paper industry, insufficient steam pressure from the heat source makes it difficult to directly apply a large amount of secondary low-pressure steam to production, resulting in energy waste and reduced energy efficiency.
Design a steam recovery device that includes a recovery component. The low-pressure steam after evaporation is introduced into a filter box through a recovery pipe and circulated back to the heat pump unit. An electric push rod and a sealing cover are used to ensure airtightness, and a spring shock absorber is used to reduce vibration, thereby achieving efficient recovery and reuse of steam.
It improves the efficiency of thermal energy use, avoids thermal energy waste, and allows thermal energy to be reused in production, thereby improving energy utilization.
Smart Images
Figure CN223579886U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to heat pump equipment technical field, specifically is a kind of steam recovery device for the circulation heat pump heating of papermaking industry. BACKGROUND
[0002] Heat pump is a kind of high-efficiency energy-saving device that makes full use of low-grade heat energy. Heat can spontaneously transfer from a high-temperature object to a low-temperature object, but not spontaneously in the opposite direction. The working principle of heat pump is to force heat to flow from a low-temperature object to a high-temperature object in a reverse cycle, which only consumes a small amount of net work in reverse cycle to obtain a larger heating capacity, effectively utilizing low-grade heat energy that is difficult to apply to achieve energy-saving purposes.
[0003] Although papermaking industry is not included in the six industries of "high energy consumption and high pollution", energy saving and emission reduction is still an important and urgent task for papermaking industry. Whether the energy consumption of papermaking industry can be reduced becomes the key to the sustainable development of papermaking industry. In the production process of papermaking industry, several different pressure grades of steam are often needed as production steam. However, the steam pressure provided by the heat source is generally single. The current common heating method is to throttle and reduce the pressure of steam. Throttling and reducing pressure type heating causes invalid devaluation and waste of heat energy. Steam jet pump technology can effectively utilize the heat energy of high-grade steam to match the pressure of heating steam.
[0004] In the prior art, the steam pressure provided by the heat source when the circulation heat pump heating of papermaking industry is used, and the material liquid can evaporate, thereby generating a large amount of secondary low-pressure steam, which is difficult to be directly applied to production, and directly lost, which causes waste, and the energy required for pulp processing is greatly wasted, thereby reducing the energy utilization efficiency. UTILITY MODEL CONTENTS
[0005] To solve the problems in the background art, the utility model provides a steam recovery device for the circulation heat pump heating of papermaking industry, which has a recovery assembly to solve the problems in the prior art, such as the steam pressure provided by the heat source when the circulation heat pump heating of papermaking industry is used, the material liquid can evaporate, thereby generating a large amount of secondary low-pressure steam, which is difficult to be directly applied to production, and directly lost, which causes waste, and the energy required for pulp processing is greatly wasted, thereby reducing the energy utilization efficiency.
[0006] The technical solution of the utility model is as follows: a steam recovery device for the circulation heat pump heating of papermaking industry, comprising a bottom plate and a heat pump unit, a reaction tank is arranged on the top of the bottom plate, an installation assembly is arranged in the reaction tank, a supporting column is arranged on the top of the bottom plate, and a recovery assembly is arranged on the top of the supporting column.
[0007] The recovery assembly comprises a top plate, a sealing cover, an electric push rod, a filter box, a recovery pipe, a suction pipe, a recovery head, a collection plate, a sealing frame, a buffer block and a spring damping frame, the top plate is fixedly installed at the top of the supporting column, the electric push rod is fixedly installed at the top of the top plate, the output end of the electric push rod is fixedly connected with the sealing cover, the filter box is fixedly installed at the top of the sealing cover, the collection plate is fixedly installed on the inner wall at the top of the sealing cover, the outer wall of one side of the filter box is provided with a suction pump, the top of the collection plate is communicated with the suction pump through the suction pipe, the recovery head is fixedly installed at the bottom of the collection plate, the spring damping frame is fixedly installed on the inner wall at the top of the sealing cover, the sealing frame is inlaid in the inner wall of the side wall of the sealing cover, the sealing cover is movably sleeved on the outside of the reaction tank, and the sealing frame is in contact with the outer wall of the reaction tank.
[0008] Further, the installation assembly comprises an output tank, a connector, a conveyor and a conveying pipe, and the output tank is inlaid in the inside of the reaction tank.
[0009] Further, the connector is fixedly installed on the outer wall of the output tank, the conveyor is sleeved on the outside of the connector, and the conveyor is welded with the side wall of the reaction tank.
[0010] Further, one end of the conveying pipe is communicated with the heat pump unit, and the other end of the conveying pipe is communicated with the conveyor.
[0011] Further, one end of the recovery pipe is communicated with the filter box, and the other end of the recovery pipe is communicated with the heat pump unit.
[0012] Further, the bottom end of the spring damping frame is fixedly installed with the buffer block, and the buffer block is clamped with the top of the reaction tank.
[0013] Compared with the prior art, the steam recovery device for the circulating heat pump heat supply in the papermaking industry has the following improvements and advantages:
[0014] When the recovery assembly is used, the heat pump unit sends heat energy into the output tank, thereby providing heat energy for the paper pulp processing in the reaction tank to evaporate the material liquid, the switch of the suction pump is turned on, thereby the hot steam after evaporation enters the collection plate through the recovery head, is pumped into the filter box through the suction pipe, is filtered and dried, thereby the secondary low-pressure steam with low heat energy is conveniently recycled into the heat pump unit for reuse, the secondary recovery and use of heat energy are facilitated, the use efficiency of heat energy is improved, the waste of heat energy is avoided, and the heat energy can be used for production again. BRIEF DESCRIPTION OF DRAWINGS
[0015] The utility model will be explained further in connection with the drawings and examples:
[0016] Figure 1It is a three-dimensional schematic view of the utility model;
[0017] Figure 2 It is a three-dimensional structural schematic view of the output groove of the utility model;
[0018] Figure 3 It is a three-dimensional structural schematic view of the spring damping frame of the utility model;
[0019] Figure 4 It is a three-dimensional structural schematic view of the spring damping frame of the utility model;
[0020] Mark 1, bottom plate; 2, support column; 3, reaction tank; 4, sealing cover; 5, top plate; 6, electric push rod; 7, extraction pipe; 8, filter box; 9, recovery pipe; 10, heat pump unit; 11, conveying pipe; 12, conveyor; 13, connector; 14, output groove; 15, recovery head; 16, collection plate; 17, sealing frame; 18, buffer block; 19, spring damping frame. DETAILED DESCRIPTION
[0021] The utility model will be described below in conjunction with the accompanying drawings Figures 1 to 4 The utility model is described in detail, and the technical scheme in the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0022] The utility model provides a kind of steam recovery device for the circulation heat pump heating of papermaking industry by improvement, as Figures 1-4 As shown in the figure, including bottom plate 1 and heat pump unit 10, the top of bottom plate 1 is provided with reaction tank 3, the inside of reaction tank 3 is provided with installation assembly, the top of bottom plate 1 is provided with support column 2, the top of support column 2 is provided with recovery assembly;
[0023] The recycling assembly comprises a top plate 5, a sealing cover 4, an electric push rod 6, a filter box 8, a recycling pipe 9, a suction pipe 7, a recycling head 15, a collection plate 16, a sealing frame 17, a buffer block 18 and a spring damping frame 19. The top plate 5 is fixedly installed at the top of the support column 2. The electric push rod 6 is fixedly installed at the top of the top plate 5. The output end of the electric push rod 6 is fixedly connected with the sealing cover 4. The filter box 8 is fixedly installed at the top of the sealing cover 4. The collection plate 16 is fixedly installed on the inner wall at the top of the sealing cover 4. One side outer wall of the filter box 8 is provided with a suction pump. The top of the collection plate 16 is communicated with the suction pump through the suction pipe 7. The recycling head 15 is fixedly installed at the bottom of the collection plate 16. The spring damping frame 19 is fixedly installed on the inner wall at the top of the sealing cover 4. The sealing frame 17 is inlaidly arranged in the sidewall of the sealing cover 4. The sealing cover 4 is movably sleeved on the outside of the reaction tank 3. The sealing frame 17 is in contact with the outer wall of the reaction tank 3. By arranging the recycling assembly, when in use, the heat pump unit 10 sends heat energy into the output tank 14, thereby providing heat energy for the paper pulp processing in the reaction tank 3 to evaporate the liquid. The switch of the suction pump is turned on, so that the evaporated hot steam enters the collection plate 16 through the recycling head 15, is sucked into the filter box 8 through the suction pipe 7, is filtered and dried, thereby facilitating the recycling of the secondary low-pressure steam with low heat energy into the heat pump unit 10 for reuse, facilitating the secondary recycling and use of heat energy, improving the use efficiency of heat energy, avoiding the waste of heat energy, and making the heat energy be used for production again. One end of the recycling pipe 9 is communicated with the filter box 8. The other end of the recycling pipe 9 is communicated with the heat pump unit 10. The bottom end of the spring damping frame 19 is fixedly installed with the buffer block 18. The buffer block 18 is clamped with the top of the reaction tank 3. The sealing cover 4 and the sealing frame 17 are beneficial to the sealing of the reaction tank 3, facilitate the recycling and prevention of the overflow and waste of steam, make the recycling efficiency higher, and the recycling effect better. The spring damping frame 19 and the buffer block 18 are beneficial to avoiding the collision between the sealing cover 4 and the reaction tank 3 when the sealing cover 4 is moved for sealing, facilitating positioning and reducing the vibration of the sealing cover 4 when it is stopped.
[0024] The installation assembly comprises an output tank 14, a connector 13, a conveyor 12 and a conveying pipe 11. The output tank 14 is inlaidly arranged in the inside of the reaction tank 3. The connector 13 is fixedly installed on the outer wall of the output tank 14. The conveyor 12 is sleevedly arranged on the outside of the connector 13. The conveyor 12 is welded with the sidewall of the reaction tank 3. One end of the conveying pipe 11 is communicated with the heat pump unit 10. The other end of the conveying pipe 11 is communicated with the conveyor 12. The gas with heat energy generated by the heat pump unit 10 is output through a group of conveying pipes 11. The sidewall inside of the output tank 14 is provided with an installation pipe for the heat exchange of gas, thereby another group of conveying pipes 11 can be used for the recycling and use of gas, achieving air circulation. The device is externally connected with a controller. The controller is electrically connected between the heat pump unit 10, the electric push rod 6 and the suction pump. The device is externally connected with a power supply to provide electric energy for the device.
[0025] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connecting mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, the conventional connecting mode is adopted for circuit connection in the prior art, and the specific connecting mode will not be described in detail here, and the contents not described in detail in the description belong to the prior art known by the professional technical personnel in the field.
[0026] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A steam recovery device for the recovery of heat for the heating of a circulation heat pump in the paper industry, comprising a base plate (1) and a heat pump unit (10), characterised in that: The top of the bottom plate (1) is provided with a reaction tank (3), the inside of the reaction tank (3) is provided with a mounting assembly, the top of the bottom plate (1) is provided with a support column (2), the top of the support column (2) is provided with a recovery assembly; The recovery assembly includes a top plate (5), a sealing cover (4), an electric push rod (6), a filter box (8), a recovery pipe (9), a suction pipe (7), a recovery head (15), a collection plate (16), a sealing frame (17), a buffer block (18) and a spring damping frame (19), the top plate (5) is fixedly installed at the top of the support column (2), the electric push rod (6) is fixedly installed at the top of the top plate (5), the output end of the electric push rod (6) is fixedly connected with the sealing cover (4), the filter box (8) is fixedly installed at the top of the sealing cover (4), the collection plate (16) is fixedly installed on the inner wall at the top of the sealing cover (4), one side of the filter box (8) is provided with a suction pump, the top of the collection plate (16) is communicated with the suction pump through the suction pipe (7), the recovery head (15) is fixedly installed at the bottom of the collection plate (16), the spring damping frame (19) is fixedly installed on the inner wall at the top of the sealing cover (4), the sealing frame (17) is inlaid in the inner wall of the sealing cover (4), the sealing cover (4) is movably sleeved on the outside of the reaction tank (3), and the sealing frame (17) is in contact with the outer wall of the reaction tank (3).
2. A steam recovery apparatus for a heat pump for heating in the paper industry cycle according to claim 1, characterized in that: The mounting assembly includes an output slot (14), a connector (13), a conveyor (12) and a conveying pipe (11), and the output slot (14) is inlaid in the inside of the reaction tank (3).
3. A steam recovery apparatus for a heat pump for heating in the paper industry cycle according to claim 2, characterized in that: The connector (13) is fixedly installed on the outer wall of the output slot (14), the conveyor (12) is sleeved on the outside of the connector (13), and the conveyor (12) is welded with the side wall of the reaction tank (3).
4. A steam recovery apparatus for a heat pump for heating in the paper industry cycle according to claim 3, characterized in that: One end of the conveying pipe (11) is communicated with the heat pump unit (10), and the other end of the conveying pipe (11) is communicated with the conveyor (12).
5. The steam recovering apparatus for a heat pump for heating of recycling in a paper industry according to claim 1, wherein: One end of the recovery pipe (9) is communicated with the filter box (8), and the other end of the recovery pipe (9) is communicated with the heat pump unit (10).
6. The steam recovering apparatus for a heat pump for heating of recycling in a paper industry according to claim 1, wherein: The bottom end of the spring damping frame (19) is fixedly installed with the buffer block (18), and the buffer block (18) is clamped with the top of the reaction tank (3).