A pipeline energy-saving drainer

Abstract

The present invention discloses a pipeline energy-saving emptying device, which is used to be connected with the hot water pipe and shower pipe of the water heater, and comprises: a shell, a water-gas circulation device and an air supply device, wherein the water-gas circulation device comprises a water-gas circulation pipeline, a pressurizing pipeline and a pressurizing component, and the water-gas circulation pipeline is respectively provided with a hot water interface, an air charging interface and a mixed water interface, wherein the hot water interface is connected with the hot water pipe, and the mixed water interface is connected with the shower pipe; one end of the pressurizing pipeline is tangentially connected with the water-gas circulation pipeline, and the pressurizing component is connected to the pressurizing pipeline through and through, and the protruding end of the pressurizing pipeline forms a pressurizing interface; and a plurality of circulation passages for suction or inflation are formed in the air supply device. The pipeline emptying and recovery device of the present invention can complete the rapid emptying and recovery of the stored water in the hot water pipe through the use of a plurality of gas circulation passages, and can also quickly lead the hot water to the shower pipe, effectively avoiding the freezing of the pipeline due to the stored water, and is convenient to operate, water-saving, energy-saving and environmentally friendly.

Description

Technical Field

[0001] The invention relates to the technical field of solar energy equipment, and in particular to a pipeline energy-saving drainer. Background Art

[0002] With the development of science and technology, the use of solar energy has become an indispensable energy source in the current society. my country's application of solar heating, solar water heaters and other aspects has developed rapidly, with obvious energy-saving effects. The effective use of solar energy can reduce energy consumption and reduce the environmental pollution caused by energy consumption. It is an important way for social energy conservation. The application market of solar water heaters in my country is basically at a saturated stage, but the application of solar water heaters in northern my country in winter has not been perfect. For example, solar pipes are easily frozen in winter due to the water stored in the pipes. In spring and autumn, the hot water in the pipes needs to wait until the cold water in the pipes is discharged before it can be used. This part of the discharged cold water will cause a waste of water resources. The problem that the hot water in the pipes cannot be used immediately has always existed. Therefore, the utilization rate of solar water heaters in the north in winter is significantly reduced, and water resources are seriously wasted in the south in spring and autumn. However, there are some solutions to the water storage problem of the hot water pipe between the mixing valve and the water heater on the market:

[0003] 1. A drain valve is installed at the lowest point of the hot water pipe, which directly drains the water in the hot water pipe into the sewer, resulting in a waste of water resources;

[0004] 2. Add a heating belt to the hot water pipe, but this solution has a high risk factor and high energy consumption;

[0005] 3. Air is introduced into the hot water pipe through the solenoid valve control to drain the remaining water in the hot water pipe. This type of solution cannot completely drain the water in the U-bend of the hot water pipe when there are one or more U-bends in the hot water pipe.

[0006] The above solutions are only temporary solutions and do not address the root cause. In addition, problems such as high production cost and short service life persist and are not recognized by the market. Summary of the invention

[0007] The present invention aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. In view of this, the present invention needs to provide a water heater pipe emptying and recovery device which can quickly empty and recover the water in the hot water pipe and quickly lead the hot water to the shower pipe through the use of multiple gas circulation paths, and can effectively avoid the freezing of the pipe due to the water, and is easy to operate, water-saving, energy-saving and environmentally friendly.

[0008] The present invention provides a pipeline energy-saving emptying device, which is used to be connected with a hot water pipe and a shower pipe of a water heater, and comprises: a shell, a water-gas circulation device and an air supply device accommodated in the shell, the water-gas circulation device comprises a water-gas circulation pipeline, a boosting pipeline and a boosting component sleeved on the boosting pipeline, the water-gas circulation pipeline is provided with a hot water interface and an air charging interface at both ends, and a mixed water interface is provided in the middle section, the hot water interface is connected with the hot water pipe, wherein a trumpet-shaped intercepting member is provided at the connection between the hot water pipe and the water heater, and the mixed water interface is connected with the shower pipe; one port of the boosting pipeline is connected with the water-gas circulation pipeline and is arranged close to the hot water interface, and the axis of the port intersects with the axis of the hot water interface at a predetermined angle, the boosting component is connected to the boosting pipeline through and the protruding end of the boosting pipeline forms a boosting interface; a plurality of circulation passages for suction or inflation are formed in the air supply device, which comprises an air supply component and at least one control valve, one end of the control valve is connected with the air supply component, and the other end is connected with the air charging interface and the boosting interface.

[0009] Furthermore, a first connecting port and a second connecting port are respectively formed at the positions where the water-gas circulation pipe is connected to the mixed water interface and the boosting pipe, and baffles are provided in the first connecting port and the second connecting port. A accommodating section is formed on the water-gas circulation pipe between the inflation interface and the first connecting port, and an end of the accommodating section away from the first connecting port is inclined upward at a second predetermined angle, and the highest point of the accommodating section is located at a higher position than the second connecting port.

[0010] Furthermore, an emptying member is provided in the water-gas circulation pipeline to squeeze the remaining hot water in the water-gas circulation pipeline and the hot water pipe and the hot water adhering to the pipe wall into the water heater during the inflation process of the air supply component.

[0011] Furthermore, the boost assembly includes a boost cylinder and a cylinder cap and a cylinder cover arranged at both ends of the boost cylinder, the internal cylinder diameter of the boost cylinder is larger than the pipe diameter of the boost pipe, and the cylinder cap and the cylinder cover are both V-shaped structures on the side facing the boost cylinder to form a boost channel with pointed structures at both ends inside the boost assembly.

[0012] Furthermore, a branch connection pipe is provided on the inflation interface, and one end of the branch connection pipe is connected to the control valve.

[0013] Furthermore, the angle formed by the intersection of the axis of the boost pipe and the axis of the hot water interface is in the range of 110 to 130 degrees.

[0014] Furthermore, the barrel cap is provided with a drainage pipeline connected with the pressurization channel.

[0015] Furthermore, the water-gas circulation device is also provided with a bypass pipe, and the bypass pipe is used to connect the mixed water interface with the water-gas circulation pipe.

[0016] Furthermore, the air supply component includes an air supply part, a silencer component and a sound insulation component, the silencer component is connected to the air supply part, and the sound insulation component wraps the air supply part, wherein the air supply part is any one of the three structures of an air pump, a combination of an air pump and a self-priming pump, or a combination of an air pump and an air-water mixing pump.

[0017] Furthermore, a control system is provided, which includes a main control module, a display module and at least one control button connected to the display module arranged on the shell, the main control module controls the movement state of the air supply device, and the display module is electrically connected to the main control module.

[0018] The water heater pipe emptying and recovery device of the present invention forms a plurality of gas circulation passages for suction or inflation in its structure through the combined use of an air supply component, a control valve, a pressurizing pipe and a water-gas circulation pipe. When the circulation passage for suction of the air supply component is working, the emptying part and hot water are quickly drawn out from the hot water pipe by the suction force and siphon force of the gas. At this time, the emptying part is stationary in the accommodating section, and the hot water enters the shower pipe from the mixed water interface. When the circulation passage for inflation of the air supply component is working, the pressurizing pipe is first opened to squeeze the hot water in the hot water pipe into the water heater, and then the inflation interface is opened to squeeze the emptying part from the accommodating section into the interceptor by air pressure, and the remaining hot water in the hot water pipe and the water adhering to the pipe wall are pushed into the water heater to prevent the hot water pipe from freezing at low temperatures. The operation process of the device is simple, the waste of water resources is reduced, and it is energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a stereoscopic diagram of a pipeline energy-saving drainer according to the present invention.

[0020] Figure 2 It is a front view of a pipeline energy-saving drainer according to the present invention.

[0021] Figure 3 yes Figure 2 Cross-sectional view of .

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the water-gas circulation pipeline according to the present invention.

[0023] Figure 5 yes Figure 4 main view.

[0024] Figure 6 yes Figure 5 Cross-sectional view of .

[0025] Figure 7Schematic diagram of the structure of the gas supply device according to the present invention.

[0026] Figure 8 It is a stereoscopic view of the intercepting member and the emptying member according to the present invention in use.

[0027] Fig. 9 yes Figure 8 Cross-sectional view of .

[0028] Fig.10 It is a structural schematic diagram of the inflation and suction states of a pipeline energy-saving evacuator according to the present invention.

[0029] Fig.11 The invention discloses an electrical schematic diagram of a control system of a pipeline energy-saving drainer.

[0030] Figure numerals: 1-shell; 2-water-gas circulation device; 3-air supply device; 4-water-gas circulation pipeline; 5-boosting pipeline; 6-boosting assembly; 7-interceptor; 8-baffle; 9-control system; 31-air supply assembly; 32-control valve; 33-silencing assembly; 34-soundproof assembly; 41-hot water interface; 42-inflating interface; 43-mixed water interface; 44-emptying element; 45-buffer section; 46-accommodating section; 47-partition; 48-branch connection pipe ;49-bypass pipe;61-boost cylinder;62-cylinder cap;63-cylinder cover;64-drainage pipeline;91-main control module;92-display module;93-control button;311-air supply part;321-solenoid valve one;322-solenoid valve two;323-solenoid valve three;324-solenoid valve four;325-solenoid valve;331-muffler;332-muffler;341-inner box;342-outer box;343-columnar protrusion;344-sound insulation cotton. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] like Figures 1 to 10As shown, a pipeline energy-saving drainer is used to connect with the hot water pipe and shower pipe of the water heater, which includes: a shell 1, a water-gas circulation device 2 and an air supply device 3 accommodated in the shell 1, the water-gas circulation device 2 includes a water-gas circulation pipeline 4, a boosting pipeline 5 and a boosting component 6 sleeved on the boosting pipeline 5, the water-gas circulation pipeline 4 is respectively provided with a hot water interface 41 and a charging interface 42 at both ends, and a mixed water interface 43 is opened in the middle section, the hot water interface 41 is connected with the hot water pipe, wherein a trumpet-shaped intercepting member 7 is provided at the connection between the hot water pipe and the water heater, and the mixed water interface 43 is connected with the shower pipe; one end of the boosting pipeline 5 is connected with the water-gas circulation pipeline 4 It is arranged close to the hot water interface 41, and the axis of the port intersects with the axis of the hot water interface 41 at a predetermined angle. The boosting component 6 is connected to the boosting pipe 5 and the protruding end of the boosting pipe 5 forms a boosting interface; a variety of circulation passages for suction or inflation are formed in the air supply device 3, which includes an air supply component 31 and at least one control valve 32, one end of the control valve 32 is connected to the air supply component 31, and the other end is connected to the inflation interface 42 and the boosting interface; wherein an emptying part 44 is provided in the water-gas circulation pipe 4 to squeeze the remaining hot water in the water-gas circulation pipe 4 and the hot water pipe and the hot water adhering to the pipe wall into the water heater during the inflation process of the air supply component 31.

[0033] The water heater pipe emptying and recovery device of the present invention forms a plurality of air-inhaling or air-inflating gas circulation passages through the combined use of the air supply component 31, the control valve 32, the pressurizing pipe 5 and the water-gas circulation pipe 4 in its structure. When the air-inhaling circulation passage of the air supply component 31 is working, the emptying member 44 and the hot water are quickly drawn out from the hot water pipe by the suction force and the siphon force of the gas. At this time, the emptying member 44 is stationary in the accommodating section 46, and the hot water enters the shower pipe from the mixed water interface 43. When the air-inflating circulation passage of the air supply component 31 is working, the pressurizing pipe 5 is first opened to squeeze the hot water in the hot water pipe into the water heater, and then the air-inflating interface 42 is opened to squeeze the emptying member 44 from the accommodating section 46 to the intercepting member 7 by air pressure, and the remaining hot water in the hot water pipe and the adhered water on the pipe wall are pushed into the water heater to prevent the hot water pipe from freezing at low temperatures. The operation process of the device is simple, the waste of water resources is reduced, and energy conservation and environmental protection are achieved.

[0034] The energy-saving pipeline drainer of the present invention can be placed below the water heater for use, and the connection method is as described above, or it can be placed above the water heater for use, that is, used in a home bathroom. In this case, the connecting pipeline is as follows: the mixed water interface 43 is sealed with a plug, and the hot water interface 41 is connected to the hot water pipe below the water heater, wherein a solenoid valve is provided in the connecting pipeline for control. Before the end of washing, the remaining water in the hot water pipe is discharged and used through the drainer, so that there is no water in the hot water pipe. When it is used next time, hot water is directly discharged from the hot water pipe, thereby reducing the waste of water resources, saving energy and being environmentally friendly. In one embodiment of the present invention, the mixed water interface 43 can be connected to a variety of pipelines requiring hot water through a three-way valve, and provide hot water for the above-mentioned multiple pipelines.

[0035] like Figure 8 and Fig. 9 As shown, the large diameter of the trumpet-shaped intercepting member 7 is connected to the water inlet of the water heater, and a filter screen for intercepting the emptying member 44 is provided inside the large diameter end, and the small diameter of the intercepting member 7 is connected to the hot water pipe, wherein the diameter of the small diameter of the intercepting member 7 is consistent with the diameter of the emptying member 44. In the specific structure, the length of the intercepting member 7 is greater than the length of the emptying member 44 to prevent the emptying member 44 from clogging the cold water when the water heater is replenished with cold water.

[0036] like Fig.10As shown, the control valve 32 can be a manual valve or a solenoid valve in a normally closed state. In a specific embodiment of the present invention, the air supply part 311 is an air pump, and a two-position two-way solenoid valve is selected, and the number is selected as multiple, and they are numbered as solenoid valve one 321, solenoid valve two 322, solenoid valve three 323, solenoid valve four 324 and solenoid valve five 325, respectively. The air inlet ends of the solenoid valve one 321 and the solenoid valve two 322 are connected to the air inlet of the air pump through a tee, and the air outlet of the solenoid valve 321 is divided into two air path pipes through a tee and are respectively connected to the booster pipeline 5 and the charging interface 42, and the air path between the tee and the charging interface 42 is connected with the solenoid valve five 3 25. The air inlet ends of the solenoid valve three 323 and the solenoid valve four 324 are connected to the air outlet of the air pump through a three-way connection, the air outlet of the solenoid valve four 324 is connected to the air charging interface 42, and the air outlets of the solenoid valve two 322 and the solenoid valve three 323 are connected to the outside. When the air pump is in the air suction process, the solenoid valve four 324 and the solenoid valve two 322 are in a conducting state, and the hot water is drawn out of the water heater by the suction force and siphon force of the air pump. The emptying part 44 moves with the hot water, and then the emptying part 44 stops in the accommodating section 46. The hot water flows from the mixed water interface 43 to the shower pipe for bathing. The hot water flows in the direction indicated by the dotted arrow in the figure, and the gas in the hot water pipe flows in the direction indicated by the dotted arrow in the figure. The hot water passes through the hot water pipe, the water circulation channel 21, the inflation interface 42, the solenoid valve four 324, and the air pump, and is finally discharged to the outside through the solenoid valve two 322; when the air pump is in the inflation process, the solenoid valve one 321 and the solenoid valve three 323 are first turned on, and the gas in the air pump is pressurized by the booster component 6 and then most of the hot water in the water circulation channel 4 and the hot water pipe is pressed into the hot water pipe through the booster pipe 5. After the set time of squeezing, the solenoid valve five 325 connected to the inflation interface 42 is turned on, and the gas pushes the emptying part 44 into the intercepting part 7, and squeezes the U-bend in the pipe and the hot water adhering to the pipe wall into the water heater through the emptying part 44. The circulation of the gas during the inflation process The route is: the external gas enters the air pump through the solenoid valve 323, and then passes through the booster pipe 5 and the hot water pipe from the air pump. After the hot water is squeezed for a certain time, the time can be pre-set in the control system of this device, and then passes through the inflation interface 42 and the water circulation pipe 21, and finally enters the hot water pipe, so as to effectively reduce the waste of water resources, thereby preventing the hot water pipe from freezing at low temperatures, so as to increase the service life of the hot water pipe and the emptying recovery device, save energy and protect the environment. It should be understood that the design of the above structure is not unique, and the solenoid valve can also be selected in a two-position three-way form. As long as the structure that can constitute the above-mentioned air pump suction and inflation process can be used in the embodiments of the present invention.

[0037] like Figure 6As shown, the positions where the water-gas circulation pipe 4 is connected with the mixed water interface 43 and the boosting pipe 5 are respectively formed with a first connecting port and a second connecting port, and baffle plates 8 are provided in the first connecting port and the second connecting port to prevent the emptying part 44 from entering the boosting pipe 5 or the mixed water interface 43 during movement.

[0038] like Figures 4 to 6 As shown, the water-gas circulation pipeline 4 between the first communication port and the mixed water interface 43 is arched upward at a first predetermined angle α and forms a buffer section 45, the range of the first predetermined angle α is 5 to 15 degrees, and the preferred angle is 8 degrees. When the boosting pipeline 5 is connected and the charging interface 42 is not connected, the buffer section 45 can prevent the emptying member 44 from entering the hot water pipe in the above-mentioned connected state; the water-gas circulation pipeline 4 between the charging interface 42 and the first communication port forms a receiving section 46, and the end of the receiving section 46 away from the first communication port is inclined upward at a second predetermined angle β, wherein the range of the second predetermined angle β is 25 ~35 degrees, the highest point of the accommodating section 46 is located higher than the second connecting port, and a partition 47 is provided at the position of the accommodating section 46 near the inflation interface 42. During the air intake process of the air supply component 31, hot water and the emptying member 44 enter the water-gas circulation pipeline 4 under the action of suction and siphon force, and the emptying member 44 enters the accommodating section 46 and is supported by the partition 47. At this time, there is some air inside the inflation interface 42, and an air seal with a certain pressure is formed to prevent water from flowing back into the inflation interface 42 when hot water or cold water is filled, thereby improving the safety of the water-gas circulation pipeline 4.

[0039] like Figure 6 As shown, the length of the emptying member 44 is smaller than the length of the accommodating section 46, so as to prevent the emptying member 44 from blocking the flow of hot water during bathing, and the two ends of the emptying member 44 are dome structures, so as to facilitate the movement of the emptying member 44 in the water-gas circulation pipe 4 and the hot water pipe during the suction and inflation process of the air supply component 31.

[0040] like Figure 3 As shown, the boosting assembly 6 includes a boosting cylinder 61 and a cylinder cap 62 and a cylinder cover 63 arranged at both ends of the boosting cylinder 61. The internal cylinder diameter of the boosting cylinder 61 is larger than the pipe diameter of the boosting pipe 5, wherein the cylinder cap 62 and the cylinder cover 63 are both V-shaped structures on the side facing the boosting cylinder 61 to form a boosting channel with pointed structures at both ends inside the boosting assembly 6 to pressurize the gas entering the boosting cylinder 61. The pressurized gas enters the hot water pipe through the boosting pipe 5, thereby pressing most of the hot water in the hot water pipe and the U-shaped bend in the pipe into the water heater through air pressure, and the remaining very small part of the hot water in the U-shaped bend and the hot water adhering to the pipe wall are emptied and recovered in the next step through the emptying part 44, wherein the cylinder cap 62 is provided with a drainage pipeline 64 connected to the boosting channel, and the drainage pipeline 64 is controlled to start by the control valve 32 and is used to drain a small amount of water stored in the boosting channel.

[0041] like Figures 1 to 6 As shown, a branch connecting pipe 48 is provided on the inflation interface 42, and one end of the branch connecting pipe 48 is connected to the control valve 32. The diameter of the internal channel of the inflation interface 42 is a tapered structure from the junction close to the water-gas circulation pipeline 4 to the junction away from the junction, which further prevents the emptying piece 44 from entering the inflation interface 42. The branch connecting pipe 48 is used to supplement the air pressure in the inflation interface 42 when the air pressure required by the device is too large, that is, when the relative height difference between the water heater and the emptying recovery device is large, to assist the upward movement of the emptying piece 44.

[0042] like Figure 5 As shown, the axis of the boost pipe 5 intersects the axis of the hot water interface 41 at an angle γ, wherein the range of γ is 110 to 130 degrees, and the preferred angle is 120 degrees, so that the gas pressurized by the boost component 6 can quickly and stably enter the water-gas circulation pipe 4 and the hot water pipe in turn, pushing most of the hot water in the above pipes into the water heater.

[0043] like Figures 3 to 6 As shown, the water vapor circulation device 2 is also provided with a bypass pipe 49, which is used to connect the mixed water interface 43 with the water vapor circulation pipe 4. In one embodiment of the present invention, the bypass pipe 49 is symmetrically arranged on both sides of the mixed water interface 43 and connected to the water vapor circulation pipe 4 below the mixed water interface 43. In another embodiment, the bypass pipe 49 is arranged horizontally and its two ends are respectively connected to the mixed water interface 43 and the accommodating section 46 close to the inflation interface 42. In the above two embodiments, the bypass pipe 49 functions to reduce the resistance of the baffle plate 8 to the water flow. In the process of drawing out hot water, the air in the accommodating section 46 and the inflation interface 42 can be discharged through the mixed water interface 43, so that the emptying part 44 can smoothly return to the accommodating section 46, thereby reducing the resistance of the emptying part 44 to the hot water.

[0044] like Figure 7As shown, the air supply component 31 includes an air supply part 311 and a silencer component 33 connected to the air supply part 311, the air supply part 311 is provided with a sound insulation component 34, the sound insulation component 34 includes an inner box 341 for placing the air supply part 311 and composed of a silencer plate, an outer box 342 sleeved on the inner box 341, the outer box 342 is provided with a columnar protrusion 343 abutting against each side wall of the inner box, the outer box 342 and the inner box 341 are filled with sound insulation cotton 344, the silencer component 33 includes an exhaust port connected to the air supply part 311 The connected silencer pipe 331 and the silencer component 332 connected to the silencer pipe 331, the silencer component 332 consists of a silencer box and foam filled in the silencer box, the silencer pipes 331 connected on both sides of the silencer box are staggered, wherein the air supply component 311 is any one of the three structures of an air pump or a combination of an air pump and a self-priming pump or a combination of an air pump and an air-water mixing pump, the sound of the air supply component 311 during operation is reduced by the silencer component 33 and the sound insulation component 34, thereby improving the comfort of bathers during use.

[0045] like Figures 1 to 3 , Fig.11 As shown, a control system 9 is further provided, and the control system 9 includes a main control module 91, a display module 92 and at least one control button 93 connected to the display module 92, which are arranged on the housing 1. The main control module 91 controls the movement state of the gas supply device 3, and the display module 92 is electrically connected to the main control module 91 and instantly displays the movement state of the control valve 32 and the gas supply member 311 in the gas supply device 3. It should be understood that the start time, closing time of the gas supply member 311 and the opening and conduction time parameters of the control valve 32 can be set by the control button 93. The display module 92 can set normal parameter range values ​​for various related parameters such as system current, voltage, movement state of the gas supply member and hot water temperature. When the above parameters deviate from When the shower is within the preset range, the display module 92 displays fault information and may issue an alarm. Furthermore, in a specific embodiment, the control system 9 is also provided with a sensor connected to the main control module 91, and a control switch is provided at the position where the shower pipe is connected to the mixed water interface 43. The sensor is provided on the control switch to sense whether the control switch is turned on. After the control switch is turned on, the sensor transmits the start signal to the main control module 91, and the main control module 91 automatically starts the circulation path of the air supply device 3 in the suction state. After the bath is completed, after the sensor receives the closing signal of the control switch, the main control module 91 starts the circulation path of the air supply device 3 in the inflation state, thereby squeezing the hot water in the pipe and the hot water adhering to the pipe wall into the water heater.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0047] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A pipeline energy-saving drainer, used to connect with a hot water pipe and a shower pipe of a water heater, comprising: A shell, a water-gas circulation device and an air supply device accommodated in the shell, characterized in that the water-gas circulation device comprises a water-gas circulation pipeline, a boosting pipeline and a boosting component sleeved on the boosting pipeline, the water-gas circulation pipeline is respectively provided with a hot water interface and an air charging interface at the head and tail ends, and a mixed water interface is opened in the middle section, the hot water interface is connected with the hot water pipe, wherein a trumpet-shaped intercepting piece is provided at the connection between the hot water pipe and the water heater, and the mixed water interface is connected with the shower pipe; one port of the boosting pipeline is connected with the water-gas circulation pipeline and is arranged close to the hot water interface, and the axis of the port intersects with the axis of the hot water interface at a predetermined angle, the boosting component is through-connected to the boosting pipeline and the boosting pipeline The protruding end of the channel forms a boost interface; a plurality of circulation passages for suction or inflation are formed in the air supply device, which include an air supply component and at least one control valve, one end of the control valve is connected to the air supply component, and the other end is connected to the inflation interface and the boost interface; the positions where the water-gas circulation pipeline is connected to the mixed water interface and the boost pipeline are respectively formed with a first connecting port and a second connecting port, and baffles are provided in the first connecting port and the second connecting port, and the water-gas circulation pipeline between the inflation interface and the first connecting port forms a accommodating section, and the end of the accommodating section away from the first connecting port is inclined upward at a second predetermined angle, wherein the highest point of the accommodating section is located at a position higher than the position of the second connecting port; The water-gas circulation pipeline is provided with an emptying member to squeeze the remaining hot water in the water-gas circulation pipeline and the hot water pipe and the hot water adhering to the pipe wall into the water heater during the inflation process of the air supply assembly; The water-gas circulation device is also provided with a bypass pipeline, which is used to connect the mixed water interface with the water-gas circulation pipeline.

2. A pipeline energy-saving evacuator according to claim 1, characterized in that: The boost assembly includes a boost cylinder and a cylinder cap and a cylinder cover arranged at both ends of the boost cylinder, the internal cylinder diameter of the boost cylinder is larger than the pipe diameter of the boost pipe, wherein the cylinder cap and the cylinder cover are both V-shaped structures on the side facing the boost cylinder to form a boost channel with pointed structures at both ends inside the boost assembly.

3. A pipeline energy-saving evacuator according to claim 1, characterized in that: A branch connection pipe is provided on the inflation interface, and one end of the branch connection pipe is communicated with the control valve.

4. A pipeline energy-saving evacuator according to claim 1, characterized in that: The angle formed by the intersection of the axis of the boost pipe and the axis of the hot water interface is in the range of 110 to 130 degrees.

5. The pipeline energy-saving evacuator according to claim 2, characterized in that: The cylinder cap is provided with a drainage pipeline which is in communication with the pressurization channel.

6. The pipeline energy-saving evacuator according to claim 1, characterized in that: The air supply component includes an air supply part, a silencer component and a sound insulation component, the silencer component is connected to the air supply part, and the sound insulation component wraps the air supply part, wherein the air supply part is any one of the three structures of an air pump, a combination of an air pump and a self-priming pump, or a combination of an air pump and an air-water mixing pump.

7. A pipeline energy-saving evacuator according to any one of claims 1 to 6, characterized in that: A control system is further provided, which includes a main control module, a display module and at least one control button connected to the display module, which are arranged on the shell. The main control module controls the movement state of the air supply device, and the display module is electrically connected to the main control module.

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