Energy-saving papermaking steam heat energy recovery device

Abstract

The utility model discloses an energy-saving papermaking steam heat energy recovery device which comprises a heat exchange box, a steam compression mechanism, a spiral pipeline, a condensate recovery mechanism, a water inlet mechanism and a water outlet mechanism, the steam compression mechanism comprises a compression pump, and the output end of the compression pump is connected with the spiral pipeline. A condensate recovery mechanism is connected to the joint of the spiral pipeline and the output end of the compression pump, a temperature detection head is arranged in the middle of the inner side of the heat exchange box, and a controller is fixedly arranged on the outer wall, corresponding to the temperature detection head, of the heat exchange box. The device can accelerate the steam pumping efficiency, improve the heat recovery rate, prolong the heat interaction time through the spiral pipeline, improve the heat recovery effect, recover condensate water, prevent chemicals carried in the condensate water from polluting the environment, detect the temperature of cooling water in the heat exchange box in real time, guarantee the cooling temperature and improve the heat exchange efficiency. And efficient recovery of steam waste heat is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cable processing and belongs to an energy-saving papermaking steam heat energy recovery device. Background Art

[0002] Papermaking is one of the four great inventions of ancient China. As early as the Western Han Dynasty, people had already understood the basic method of papermaking. Most of the papermaking techniques in the world were passed down from China. The invention of papermaking is one of China's great contributions to world civilization.

[0003] In the papermaking process, many links require a lot of steam, and the large amount of heat carried by the steam is used to dry and shape the paper. However, in this process, part of the heat in the steam is lost, which is not conducive to energy conservation and emission reduction. In addition, with the implementation of energy-saving and environmental protection policies and the promotion of behaviors, a steam waste heat recovery device is needed in the papermaking process.

[0004] When the existing papermaking steam heat recovery device is in operation, it is often arranged to cool the pipe and pass the cooling medium into the cooling pipe to recover the waste heat of the steam in the cooling box. However, this device is not conducive to the flow of steam. Only after the waste heat recovery of the steam in the cooling box is completed can new steam be introduced. In this way, the waste heat recovery is slow and the recovery efficiency is low. In addition, the existing papermaking steam heat recovery device lacks a condensate recovery mechanism, which is easy to pollute the working environment. Utility Model Content

[0005] The utility model provides an energy-saving papermaking steam heat energy recovery device, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above object, the utility model provides the following implementation scheme:

[0007] The present application provides an energy-saving papermaking steam heat recovery device, comprising a heat exchange box and a box support, characterized in that the heat exchange box is arranged on the box support, and a steam compression mechanism is arranged on the heat exchange box, and the steam compression mechanism includes a compression pump, and the output end of the compression pump is connected to a spiral pipe, and the connection between the spiral pipe and the output end of the compression pump is connected to a condensate recovery mechanism, the other end of the spiral pipe passes through the upper wall of the heat exchange box and is fixedly connected to the heat exchange box, the top surface of the heat exchange box is provided with a water inlet mechanism, the lower part of the outer side of the heat exchange box is provided with a water outlet mechanism, the middle part of the inner side of the heat exchange box is provided with a temperature detection head, and a controller is fixedly provided on the outer wall of the heat exchange box corresponding to the temperature detection head.

[0008] Preferably, the steam compression mechanism further comprises an air intake pipe, the air intake pipe is fixedly connected to the compression pump, and a solenoid valve is arranged in the middle of the air intake pipe.

[0009] Preferably, a connecting port is provided at the front end of the air intake duct, and a spiral blade is fixedly provided inside the air intake duct near the connecting port.

[0010] Preferably, a compression motor is arranged on the outside of the pump housing of the compression pump, the output end of the compression motor is connected to a transmission shaft via a coupling, the transmission shaft is arranged in the compression pump, the transmission shaft and the compression pump are movably connected, the transmission shaft is connected to turbine blades via circumferential holes, and the part of the compression pump located in the air intake pipe is provided with an air vent.

[0011] Preferably, the condensate recovery mechanism includes a reflux pipe and a recovery box, the reflux pipe is connected to the lower end of the spiral pipe, a control valve is provided at the upper end of the reflux pipe, the lower end of the reflux pipe is connected to a recovery hose, the end of the recovery hose leads to the recovery box, a slide groove is provided at the bottom of the heat exchange box, a connecting rod is fixedly connected to the recovery box, a slider is fixedly connected to the upper end of the connecting rod, the slider is movably connected to the slide groove, and a handle is fixedly provided on the recovery box.

[0012] Preferably, the water inlet mechanism includes a water inlet interface and a water supply pump, the water inlet interface is arranged on the top surface of the heat exchanger box, a mounting plate is fixedly arranged in the heat exchanger box, the water supply pump is fixedly installed on the mounting plate, the lower end of the water inlet interface is through-connected with the water supply pump, and the water supply pump is electrically connected to the controller.

[0013] Preferably, the water outlet mechanism includes a water outlet pump and a water outlet interface, the water outlet pump is fixedly arranged in the heat exchange box, the water outlet interface is fixedly arranged at the lower part of the heat exchange box, the water outlet pump is through-connected with the water outlet interface, and the water outlet pump is electrically connected to the controller.

[0014] Preferably, the heat exchange box comprises a rigid shell and a thermal insulation layer, wherein the thermal insulation layer is arranged in the rigid shell, and the compression pump and the temperature detection head are both electrically connected to the controller.

[0015] Compared with the prior art, the utility model provides an energy-saving papermaking steam heat recovery device, which has the following beneficial effects:

[0016] 1. The utility model is provided with a steam compression mechanism, and the steam can be pumped into the spiral pipe through the compression pump. The spiral blades arranged at the inlet of the air intake pipe can cooperate with the compression pump to form a spiral steam flow, thereby accelerating the pumping efficiency and improving the heat recovery rate. In addition, the heat interaction time is lengthened by the spiral pipe to improve the heat recovery effect.

[0017] 2. The utility model is provided with a condensate recovery mechanism, which can reflux the condensed water generated in the spiral pipe due to cooling, and then collect it into a recovery box to realize the collection of condensed water, and then move the recovery box through the cooperation of the slider and the slide groove, thereby realizing the recovery of condensed water and preventing other chemicals carried in the condensed water from polluting the environment.

[0018] 3. The utility model is provided with a temperature detection head and a controller, which can perform real-time temperature detection on the cooling water in the heat exchange box, thereby controlling the pumping of the cooling water to ensure that the cooling water is within a suitable cooling temperature range, thereby ensuring efficient recovery of steam waste heat.

[0019] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a partial cross-sectional view of the utility model;

[0022] Figure 3 It is a cross-sectional view of the utility model;

[0023] In the figure: 1. heat exchange box; 11. slide; 12. rigid shell; 13. insulation layer; 2. box support; 3. steam compression mechanism; 31. compression pump; 311. compression motor; 312. transmission shaft; 313. turbine fan blade; 32. air intake pipe; 321. connection port; 322. spiral blade; 33. solenoid valve; 4. spiral pipe; 5. condensate recovery mechanism; 51. return pipe; 52. control valve; 53. recovery hose; 54. recovery box; 541. connecting rod; 542. handle; 55. slider; 6. water inlet mechanism; 61. water inlet interface; 62. water pump; 63. mounting plate; 7. water outlet mechanism; 71. water outlet pump; 72. water outlet interface; 8. temperature detection head; 9. controller. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0025] See also Figure 1, comprising a heat exchange box 1 and a box support 2, characterized in that the heat exchange box 1 is arranged on the box support 2, a steam compression mechanism 3 is arranged on the heat exchange box 1, the steam compression mechanism 3 comprises a compression pump 31, the output end of the compression pump 31 is connected with a spiral pipe 4, the connection between the spiral pipe 4 and the output end of the compression pump 31 is connected with a condensate recovery mechanism 5, the other end of the spiral pipe 4 passes through the upper wall of the heat exchange box 1 and is fixedly connected to the heat exchange box 1, a water inlet mechanism 6 is arranged on the top surface of the heat exchange box 1, a water outlet mechanism 7 is arranged on the lower outer side of the heat exchange box 1, a temperature detection head 8 is arranged in the middle inner side of the heat exchange box 1, and a controller 9 is fixedly arranged on the outer wall of the heat exchange box 1 corresponding to the temperature detection head 8.

[0026] See also Figure 2 The steam compression mechanism 3 also includes an air intake pipe 32, which is fixedly connected to a compression pump 31. The compression pump 31 is used to pump steam into the spiral pipe 4. A solenoid valve 33 is provided in the middle of the air intake pipe 32. The solenoid valve 33 is used to control the opening and closing of the air intake pipe 32.

[0027] See also Figure 2 A connection port 321 is provided at the front end of the air intake pipe 32, and a spiral blade 322 is fixedly provided inside the air intake pipe 32 near the connection port 321. The spiral blade 322 can form a vortex in the steam flow, thereby accelerating the pumping speed.

[0028] See also Figure 2 A compression motor 311 is arranged on the outside of the pump housing of the compression pump 31, and the output end of the compression motor 311 is connected to a transmission shaft 312 through a coupling. The transmission shaft 312 is arranged in the compression pump 31, and the transmission shaft 312 and the compression pump 31 are movably connected. The transmission shaft 312 is connected to the turbine blades 313 through circumferential holes, and the part of the compression pump 31 located in the intake pipe 32 is provided with an air vent.

[0029] See also Figure 2 , 3 The condensate recovery mechanism 5 includes a reflux pipe 51 and a recovery box 54. The reflux pipe 51 is connected to the lower end of the spiral pipe 4. A control valve 52 is provided at the upper end of the reflux pipe 51. A recovery hose 53 is connected to the lower end of the reflux pipe 51. The end of the recovery hose 53 passes into the recovery box 54. A chute 11 is provided at the bottom of the heat exchange box 1. A connecting rod 541 is fixedly connected to the recovery box 54. A slider 55 is fixedly connected to the upper end of the connecting rod 541. The slider is movably connected to the chute 11. A handle 542 is fixedly provided on the recovery box 54. The recovery hose 53 can be extended and shortened, which is beneficial to the movement of the recovery box 54, thereby facilitating the recovery of condensed water.

[0030] See also Figure 3The water inlet mechanism 6 includes a water inlet interface 61 and a water supply pump 62. The water inlet interface 61 is arranged on the top surface of the heat exchange box 1. A mounting plate 63 is fixedly arranged in the heat exchange box 1. The water supply pump 62 is fixedly installed on the mounting plate 63. The lower end of the water inlet interface 61 is connected with the water supply pump 62. The water supply pump 62 is electrically connected to the controller 9. The water supply pump 62 is used to control the cooling water pump to be sent into the heat exchange box 1.

[0031] See also Figure 2 The water outlet mechanism 7 includes a water outlet pump 71 and a water outlet interface 72. The water outlet pump 71 is fixedly arranged in the heat exchange box 1, and the water outlet interface 72 is fixedly arranged at the lower part of the heat exchange box 1. The water outlet pump 71 is connected with the water outlet interface 72 through communication. The water outlet pump 71 is electrically connected to the controller 9. The water outlet pump 71 is used to control the discharge of cooling water in the heat exchange box 1.

[0032] See also Figure 2 The heat exchange box 1 includes a rigid shell 12 and an insulation layer 13. The insulation layer 13 is arranged in the rigid shell 12. The compression pump 31 and the temperature detection head 8 are electrically connected to the controller 9. The insulation layer 13 can reduce the heat exchange between the heat exchange box 1 and the external environment, thereby improving the efficiency of heat recovery.

[0033] The working principle of the embodiment of the utility model:

[0034] When the utility model is used, the water supply pump 62 is first turned on, and the cooling water is pumped into the heat exchange box 1 through the water supply pump 62. When the cooling water fills the heat exchange box 1, the water supply pump 62 is turned off, and the compression motor 311 is turned on at this time to drive the transmission shaft 312 to rotate, drive the turbine blades 313 to rotate, and pump the high-temperature steam into the spiral pipe 4 through the air intake pipe 32. At the same time, the steam flow is formed into a vortex through the spiral blades 322 to accelerate the steam pumping flow rate, and heat exchange is performed through the spiral pipe 4, thereby realizing steam waste heat recovery. In this process, the temperature detection head 8 is The temperature of the cooling water is detected in real time. When the cooling water temperature reaches the predetermined value, the signal is transmitted to the controller 9. The controller 9 issues a control command to turn on the outlet pump 71 to pump the heated cooling water out of the heat exchanger box 1. At the same time, the feed water pump 62 is turned on to pump new cooling water into the heat exchanger box 1, thereby forming a waste heat recovery cycle. The condensed water generated during the cooling process flows back into the recovery pipe 51 through the spiral pipe 4, and then flows into the recovery box 54 through the recovery hose 53. After that, the recovery box 54 can be pulled out through the cooperation of the slider 55 and the slide groove 11 to complete the condensed water recovery.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An energy-saving papermaking steam heat recovery device, comprising a heat exchange box (1) and a box support (2), characterized in that: The heat exchange box (1) is arranged on a box support (2), and a steam compression mechanism (3) is arranged on the heat exchange box (1). The steam compression mechanism (3) comprises a compression pump (31), and the output end of the compression pump (31) is connected to a spiral pipe (4), and the connection between the spiral pipe (4) and the output end of the compression pump (31) is connected to a condensate recovery mechanism (5), and the other end of the spiral pipe (4) passes through the upper wall of the heat exchange box (1) and is fixedly connected to the heat exchange box (1), and the top surface of the heat exchange box (1) is provided with a water inlet mechanism (6), and the lower part of the outer side of the heat exchange box (1) is provided with a water outlet mechanism (7), and the middle part of the inner side of the heat exchange box (1) is provided with a temperature detection head (8), and the outer wall of the heat exchange box (1) corresponding to the temperature detection head (8) is fixedly provided with a controller (9).

2. The energy-saving papermaking steam heat recovery device according to claim 1, characterized in that: The steam compression mechanism (3) further comprises an air intake pipe (32), wherein the air intake pipe (32) is fixedly connected to the compression pump (31), and a solenoid valve (33) is arranged in the middle of the air intake pipe (32).

3. The energy-saving papermaking steam heat recovery device according to claim 2, characterized in that: The front end of the air intake pipe (32) is provided with a connection port (321), and a spiral blade (322) is fixedly provided inside the air intake pipe (32) near the connection port (321).

4. The energy-saving papermaking steam heat recovery device according to claim 2, characterized in that: A compression motor (311) is arranged on the outside of a pump housing of the compression pump (31); an output end of the compression motor (311) is connected to a transmission shaft (312) via a coupling; the transmission shaft (312) is arranged in the compression pump (31); the transmission shaft (312) and the compression pump (31) are movably connected; a turbine blade (313) is connected to the transmission shaft (312) via a circumferential hole; and a ventilation hole is arranged on the portion of the compression pump (31) located in the air intake pipe (32).

5. The energy-saving papermaking steam heat recovery device according to claim 1, characterized in that: The condensate recovery mechanism (5) comprises a reflux pipe (51) and a recovery box (54); the reflux pipe (51) is connected to the lower end of the spiral pipe (4); a control valve (52) is arranged at the upper end of the reflux pipe (51); a recovery hose (53) is connected to the lower end of the reflux pipe (51); the end of the recovery hose (53) is connected to the recovery box (54); a slide groove (11) is provided at the bottom of the heat exchange box (1); a connecting rod (541) is fixedly connected to the recovery box (54); a slider (55) is fixedly connected to the upper end of the connecting rod (541); the slider (55) is movably connected to the reflux groove (11); and a handle (542) is fixedly arranged on the recovery box (54).

6. The energy-saving papermaking steam heat recovery device according to claim 1, characterized in that: The water inlet mechanism (6) comprises a water inlet interface (61) and a water supply pump (62); the water inlet interface (61) is arranged on the top surface of the heat exchange box (1); a mounting plate (63) is fixedly arranged inside the heat exchange box (1); the water supply pump (62) is fixedly mounted on the mounting plate (63); the lower end of the water inlet interface (61) is connected to the water supply pump (62); and the water supply pump (62) is electrically connected to the controller (9).

7. The energy-saving papermaking steam heat recovery device according to claim 1, characterized in that: The water outlet mechanism (7) comprises a water outlet pump (71) and a water outlet interface (72); the water outlet pump (71) is fixedly arranged in the heat exchange box (1); the water outlet interface (72) is fixedly arranged at the lower part of the heat exchange box (1); the water outlet pump (71) and the water outlet interface (72) are connected in a through manner; and the water outlet pump (71) and the controller (9) are electrically connected.

8. The energy-saving papermaking steam heat recovery device according to claim 1, characterized in that: The heat exchange box (1) comprises a rigid shell (12) and a heat-insulating layer (13), wherein the heat-insulating layer (13) is arranged inside the rigid shell (12), and the compression pump (31) and the temperature detection head (8) are both electrically connected to the controller (9).

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