Automatic control equipment of heat exchange station

Abstract

The invention belongs to the technical field of heat exchange station automation, and particularly relates to heat exchange station automation control equipment which comprises a water mixing tank, a first water distribution pipe and a second water distribution pipe. The water mixing tank body is communicated with the water inlet header pipe through a flange; the first water distribution pipe is communicated with the water mixing tank body through a flange; the second water distribution pipe is communicated with the water mixing tank body through a flange, and is staggered with the first water distribution pipe; the device further comprises a lead screw, a ball nut and a control module. The screw rod penetrates through the water mixing tank body and is in threaded connection with the ball nut; after the first water distribution pipe or the second water distribution pipe is plugged, the first water distribution pipe or the second water distribution pipe can be detached and cleaned and maintained, normal operation of the heat exchange station is not affected, non-stop maintenance is achieved, driving equipment used for driving the lead screw to rotate is connected with the lead screw, the lead screw can be controlled to rotate at the control end, and the operation is convenient. And the control module is driven to block the first water distribution pipe or the second water distribution pipe, and subsequent automatic cleaning and maintenance work is carried out.

Description

Technical Field

[0001] The present invention belongs to the technical field of heat exchange station automation, and specifically relates to an automatic control device for a heat exchange station. Background Art

[0002] A heat exchange station is a place for heat concentration and exchange, which can be divided into a direct supply station and an indirect supply station according to the heating form. The direct supply station directly supplies users from the power plant and is the product of the initial waste heat welfare heating of the power plant; the principle of the indirect supply station: the power plant is the primary line, the community is the secondary line, and the connection point of the heat source (power plant), heat network (primary and secondary line pipe networks), and heat users (residential buildings and units) is the heat exchange station. The equipment includes plate heat exchangers, circulation pumps, primary and secondary line dirt collectors, make-up water pumps, water tanks, meters, control valves, etc., and the water in the heat exchange station is circulated and filtered through a filtering device. For the control of the heat exchange station, it is mainly reflected in the control of the pipeline and the treatment of impurities in the pipeline. Normally, after the heat exchange station is used for a period of time, it needs to be shut down for maintenance to remove possible impurities in the pipeline to ensure the normal operation of the entire pipeline.

[0003] Regarding the cleaning of impurities in the pipeline, a Chinese patent with the publication number CN220918402U discloses a heat exchange station filtering device, which includes a main inlet pipe. The main inlet pipe is connected to two inlet pipes. The other ends of the two inlet pipes are respectively connected to the inlets of filter one and filter two. The outlets opened on filter one and filter two are respectively connected to one ends of two outlet pipes. The other ends of the outlet pipes are connected to a main outlet pipe. An inlet valve one and an inlet valve two are respectively installed on the two inlet pipes connected to filter one and filter two. An outlet valve one and an outlet valve two are respectively installed on the two outlet pipes connected to filter one and filter two. Filter one and filter two are installed on a bracket. By controlling the passage states of inlet valve one, inlet valve two, outlet valve one, and outlet valve two, one of filter one and filter two can be filtered while the other is disassembled and cleaned to ensure the normal operation of the water cycle.

[0004] In the current prior art, a design with double inlet pipes is adopted on the main inlet pipe, and filtering is carried out through the filtering equipment in the double inlet pipes. Although it can play a function of one standby and one use, and can reduce the number of impurities in the pipeline, the setting of double inlet pipes and double outlet pipes is difficult to adapt to automatic transformation. When cleaning, at least two valves need to be closed, which is rather cumbersome.

[0005] Therefore, the present invention provides an automatic control device for a heat exchange station. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: An automatic control device for a heat exchange station according to the present invention includes:

[0008] A mixing water tank body, which is connected to the total water inlet pipe through a flange;

[0009] A first water distribution pipe, which is connected to the mixing water tank body through a flange;

[0010] A second water distribution pipe, which is connected to the mixing water tank body through a flange and is arranged staggeredly with the first water distribution pipe;

[0011] It further includes a lead screw, a ball nut and a control module;

[0012] The lead screw penetrates through the mixing water tank body and is threadedly connected to the ball nut; the ball nut is arranged in the control module; the control module is arranged in the mixing water tank body, and when the lead screw rotates, it can slide from one end of the mixing water tank body to the other end to close the first water distribution pipe or the second water distribution pipe.

[0013] Preferably, first end covers and second end covers are respectively fixedly connected to both ends of the mixing water tank body, and the total water inlet pipe is connected to the second end cover; one end of the lead screw penetrates into the mixing water tank body from the first end cover, and the other end is rotatably connected to the second end cover.

[0014] Preferably, the control module includes a closed cover shell and a central fixed shell. A sealing chamber is arranged on the outer side of the middle part of the closed cover shell; there are two central fixed shells, which are symmetrically fixedly connected to both ends of the closed cover shell, and the central fixed shell and the closed cover shell are arranged coaxially; the ball nut is fixedly connected between the two central fixed shells.

[0015] Preferably, a water through groove is further arranged on the central fixed shell, and a plurality of water through grooves are arranged in a circumferential array around the ball nut.

[0016] Preferably, a second inner convex shell is fixedly connected to the middle part of the end of the second end cover located inside the mixing water tank body, and a water inlet hole is arranged on the side wall of the second inner convex shell, and the other end of the lead screw penetrates through the second inner convex shell.

[0017] Preferably, a first inner convex shell is correspondingly fixedly connected to the middle part of the end of the first end cover located inside the mixing water tank body, and one end of the lead screw penetrates through the first inner convex shell.

[0018] Preferably, the control module further includes a packing shell, which is fixedly connected to the inner side of the closed cover shell, and the packing shell and the closed cover shell are arranged coaxially; the packing shell is used to fill elastic materials.

[0019] Preferably, the control module further includes two scrapers, which are symmetrically fixedly connected to the outer side of the closed cover shell, and the outer edge of the scraper fits against the inner wall of the mixing water tank body.

[0020] Preferably, the control module further includes through-slot fan blades. Two through-slot fan blades are provided and are respectively arranged in two central fixed shells. The two through-slot fan blades are fixedly connected by a plurality of link rods arranged in a circumferential array. The link rods penetrate through the water through-channel. A spring is arranged between the through-slot fan blade and the inner wall of the central fixed shell, and the spring is located inside the plurality of link rods.

[0021] Preferably, a relief hole is further formed on the surface of the through-slot fan blade, and a sleeve is fixedly connected to the inner side of the through-slot fan blade. An arc-shaped adjustment groove is formed on the side wall of the sleeve. A first stop rod is fixedly connected to the side wall of the first inner convex shell corresponding to the through-slot fan blade, and a second stop rod is fixedly connected to the side wall of the second inner convex shell corresponding to the through-slot fan blade.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1. For the automatic control device of a heat exchange station of the present invention, the control module is driven to move smoothly in the mixing water tank by the rotation of the lead screw in cooperation with the ball nut, so as to block the first water distribution pipe or the second water distribution pipe. When the first water distribution pipe is blocked, the second water distribution pipe is used for normal water supply. When the second water distribution pipe is blocked, the first water distribution pipe is used for normal water supply. After the first water distribution pipe or the second water distribution pipe is blocked, the first water distribution pipe or the second water distribution pipe can be detached and cleaned and maintained, without affecting the normal operation of the heat exchange station, realizing maintenance without shutdown. Connect the driving device for driving the rotation of the lead screw to the lead screw, and the rotation of the lead screw can be controlled at the control end, driving the control module to block the first water distribution pipe or the second water distribution pipe, and performing subsequent automatic cleaning and maintenance work.

[0024] 2. For the automatic control device of a heat exchange station of the present invention, through the cooperation of the first stop rod, the second stop rod and the adjustment groove, when the through-slot fan blade moves with the closed cover shell to contact the first inner convex shell or the second inner convex shell, the first stop rod or the second stop rod can pass through the relief hole and slide in the adjustment groove. When the first stop rod or the second stop rod cooperates with the adjustment groove, it can drive the through-slot fan blade and the link rod to rotate a certain angle, and make the link rod rotate a certain angle in the water through-channel, so as to achieve the purpose of cleaning the complete water through-channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 is a perspective view of the present invention;

[0027] Figure 2 is a front view of the present invention;

[0028] Figure 3 is a side view of the present invention;

[0029] Figure 4 is Figure 3 a sectional view taken along line A-A in

[0030] Figure 5 is Figure 4 an enlarged view at position I in

[0031] Figure 6 a mating diagram of the control module and the lead screw in the present invention;

[0032] Figure 7 a mating diagram of the through-slotted fan blade and the central fixing housing in the present invention;

[0033] Figure 8 a mating diagram of the first end cap, the second end cap and the lead screw in the present invention;

[0034] Figure 9 is a partial sectional view of the control module in the present invention;

[0035] Figure 10 is a partial sectional view of the central fixing housing in the present invention;

[0036] In the figure: 1, the main water inlet pipe; 2, the water mixing tank body; 21, the first end cap; 211, the first inner convex shell; 212, the first stop rod; 22, the second end cap; 221, the second inner convex shell; 222, the water inlet hole; 223, the second stop rod; 3, the first water distribution pipe; 4, the second water distribution pipe; 5, the lead screw; 51, the rotating rod; 6, the control module; 61, the closed cover shell; 62, the sealing chamber; 63, the central fixing housing; 631, the through-water groove; 64, the ball nut; 65, the packing shell; 66, the scraping plate; 67, the through-slotted fan blade; 671, the relief hole; 672, the adjustment groove; 673, the connecting rod; 68, the spring; Detailed implementation manners

[0037] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0038] As Figures 1 to 5As shown in the figure, an automatic control device for a heat exchange station according to an embodiment of the present invention includes a mixing water tank body 2, a first water distribution pipe 3, and a second water distribution pipe 4; the mixing water tank body 2 is connected to the total water inlet pipe 1 through a flange; the first water distribution pipe 3 is connected to the mixing water tank body 2 through a flange; the second water distribution pipe 4 is connected to the mixing water tank body 2 through a flange and is arranged in a staggered manner with the first water distribution pipe 3; it further includes a lead screw 5, a ball nut 64, and a control module 6; the lead screw 5 penetrates through the mixing water tank body 2 and is threadedly connected to the ball nut 64; the ball nut 64 is arranged in the control module 6; the control module 6 is arranged in the mixing water tank body 2, and when the lead screw 5 rotates, it can slide from one end of the mixing water tank body 2 to the other end to block the first water distribution pipe 3 or the second water distribution pipe 4.

[0039] In the prior art, in the path from the total water inlet pipe 1 to the water outlet pipe of the heat exchange station, double water inlet pipes and double water outlet pipes are provided, so it is difficult to carry out automatic transformation. In one embodiment of the present invention, a mixing water tank body 2 is added between the total water inlet pipe 1 and the water outlet pipe, and at least two water outlet pipes, that is, the first water distribution pipe 3 and the second water distribution pipe 4 in the present invention, are both connected to the mixing water tank body 2. When the total water inlet pipe 1 inputs water, the water flow fills the mixing water tank body 2 and is discharged through the first water distribution pipe 3 and the second water distribution pipe 4. Specifically, since it is not necessary to open the first water distribution pipe 3 and the second water distribution pipe 4 simultaneously when the heat exchange station is working, therefore, the first water distribution pipe 3 or the second water distribution pipe 4 can be blocked through the control module 6. By rotating the lead screw 5 and cooperating with the ball nut 64 to drive the control module 6 to move smoothly in the mixing water tank body 2, the first water distribution pipe 3 or the second water distribution pipe 4 can be blocked. When the first water distribution pipe 3 is blocked, the second water distribution pipe 4 is used for normal water supply. When the second water distribution pipe 4 is blocked, the first water distribution pipe 3 is used for normal water supply. After the first water distribution pipe 3 or the second water distribution pipe 4 is blocked, the first water distribution pipe 3 or the second water distribution pipe 4 can be detached and cleaned and maintained, without affecting the normal operation of the heat exchange station, realizing maintenance without shutting down. In addition, in order to adapt to automatic transformation, the output end of a driving device for driving the rotation of the lead screw 5, such as a servo motor, can be connected to the lead screw 5, that is, an operator can control the rotation of the lead screw 5 at the control end, drive the control module 6 to block the first water distribution pipe 3 or the second water distribution pipe 4, and carry out subsequent cleaning and maintenance work.

[0040] As Figures 1 to 5 、 Figure 8 As shown in the figure, first end covers 21 and second end covers 22 are fixedly connected to both ends of the mixing water tank body 2 respectively, and the total water inlet pipe 1 is connected to the second end covers 22; one end of the lead screw 5 penetrates into the mixing water tank body 2 from the first end covers 21, and the other end is rotatably connected to the second end covers 22.

[0041] At both ends of the mixing water tank body 2, a first end cover 21 and a second end cover 22 are provided. One end of the lead screw 5 penetrates into the mixing water tank body 2 from the first end cover 21, and the other end penetrates through the second end cover 22 and is locked with screws. When the lead screw 5 rotates, it can be restricted on the first end cover 21 and the second end cover 22 by bearings. During its rotation, the control module 6 slides inside the mixing water tank body 2, specifically slides between the first end cover 21 and the second end cover 22, so as to effectively block the first branch pipe or the second branch pipe, achieving the purpose of maintenance and cleaning without shutting down the machine.

[0042] As Figures 4 to 7 shown, the control module 6 includes a closed cover 61 and a central fixed shell 63. A sealing chamber 62 is arranged on the outer side of the middle part of the closed cover 61; there are two central fixed shells 63, which are symmetrically fixed at both ends of the closed cover 61, and the central fixed shell 63 and the closed cover 61 are arranged coaxially; the ball nut 64 is fixed between the two central fixed shells 63.

[0043] When the driving device, such as a servo motor, controls the rotation of the lead screw 5, the lead screw 5 can drive the closed cover 61 and the central fixed shell 63 to move through the cooperation with the ball nut 64. The sealing chamber 62 in the middle of the closed cover 61 isolates the passage from the inside of the mixing water tank body 2 to the first branch water pipe 3 or the second branch water pipe 4, so as to realize the blocking of the first branch water pipe 3 or the second branch water pipe 4 and achieve the purpose of maintenance without shutting down the machine; it should be noted that in an embodiment of the present invention, the connection between the central fixed shell 63 and the closed cover 61 is locked by the cooperation of a screw and a bolt. After it is assembled, it is then placed inside the mixing water tank body 2.

[0044] As Figures 1 to 2 、 Figures 8 to 10 shown, a water through groove 631 is further arranged on the central fixed shell 63, and a plurality of water through grooves 631 are arranged in a circumferential array around the ball nut 64.

[0045] Since in the present invention, the closed cover 61 can block the passage from the inside of the mixing water tank body 2 to the first branch water pipe 3 or the second branch water pipe 4, it should be noted that if the closed cover 61 blocks the passage between the mixing water tank body 2 and the second branch water pipe 4, it is also necessary to keep the passage from the water inlet main pipe 1 to the mixing water tank body 2 and the first branch water pipe 3 unblocked. Therefore, in an embodiment of the present invention, a water through groove 631 is arranged in the central fixed shell 63. After the passage between the mixing water tank body 2 and the second branch water pipe 4 is closed by the sealing chamber 62, the water source input in the water inlet main pipe 1 needs to be output to the inside of the mixing water tank body 2 through the water through groove 631 without affecting the passage from the mixing water tank body 2 to the first branch water pipe 3.

[0046] As Figures 1 to 2As shown, at the middle of one end of the second end cap 22 located inside the mixing water tank body 2, a second inner convex shell 221 is fixedly connected, and a water inlet hole 222 is formed on the side wall of the second inner convex shell 221. The other end of the lead screw 5 penetrates through the second inner convex shell 221.

[0047] A first end cap 21 and a second end cap 22 are respectively arranged at two ends of the mixing water tank body 2. To ensure that the water source input by the water inlet main pipe 1 can smoothly enter the mixing water tank body 2, a plurality of water inlet holes 222 arranged in a circumferential array are formed on the side wall of the second inner convex shell 221 of the second end cap 22. By using the water inlet holes 222, the water source input by the water inlet main pipe 1 can smoothly enter the mixing water tank body 2, and continue to pass through the water passing groove 631 on the central fixed shell 63 in the middle of the closed cover shell 61 and fill the inside of the mixing water tank body 2. Even if the lead screw 5 drives the closed cover shell 61 to smoothly move inside the mixing water tank body 2, it will not affect the passage from the water inlet main pipe 1 to the mixing water tank body 2 and to the first water distribution pipe 3 or the second water distribution pipe 4.

[0048] As Figures 1 to 5 、 Figure 8 As shown, at the middle of one end of the first end cap 21 located inside the mixing water tank body 2, a first inner convex shell 211 is correspondingly fixedly connected, and one end of the lead screw 5 penetrates through the first inner convex shell 211.

[0049] As Figures 1 to 5 As shown, the control module 6 further includes a packing shell 65. The packing shell 65 is fixedly connected to the inner side of the closed cover shell 61, and the packing shell 65 is arranged coaxially with the closed cover shell 61. The packing shell 65 is used for filling elastic materials.

[0050] Since the control module 6 will smoothly slide from one end to the other end inside the mixing water tank body 2 under the action of the lead screw 5, and when the closed cover shell 61 is used to close the passage from the mixing water tank body 2 to the first water distribution pipe 3 or the second water distribution pipe 4, good sealing performance is also required. In an embodiment of the present invention, a packing shell 65 is fixedly connected to the inner side of the closed cover shell 61. The surface of the packing shell 65 is provided with an inward groove, and an elastic material, such as rubber, can be sleeved in the packing shell 65. When the closed cover shell 61 moves with the movement of the lead screw 5, the passage from the mixing water tank body 2 to the first water distribution pipe 3 or the second water distribution pipe 4 can be closed based on the elastic material, achieving good sealing performance.

[0051] As Figures 1 to 5 As shown, the control module 6 further includes two scraping plates 66, which are symmetrically fixedly connected to the outer side of the closed cover shell 61, and the outer edges of the scraping plates 66 are attached to the inner wall of the mixing water tank body 2.

[0052] When the screw rod 5 drives the control module 6 to move smoothly inside the mixing tank body 2, since the water source input into the water inlet main pipe 1 may contain impurities, and the impurities adhere to the inner wall of the mixing tank body 2, thereby affecting the movement of the control module 6 in the mixing tank body 2, in one embodiment of the present invention, scrapers 66 are fixed to the two outer walls of the closed cover 61. When the screw rod 5 drives the control module 6 to move, the scrapers 66 can be synchronously driven to scrape the inner wall of the mixing tank body 2, thereby maintaining the cleanliness of the inner wall of the mixing tank body 2 and avoiding affecting the movement of the control module 6 in the mixing tank body 2.

[0053] like Figures 6 to 10 As shown, the control module 6 also includes a through-slot fan blade 67, two of which are respectively arranged in two central fixed shells 63. The two through-slot fan blades 67 are fixedly connected by a plurality of connecting rods 673 arranged in a circular array. The connecting rod 673 passes through the water groove 631. A spring 68 is provided between the through-slot fan blade 67 and the inner wall of the central fixed shell 63, and the spring 68 is located on the inner side of the plurality of connecting rods 673.

[0054] When the screw rod 5 drives the control module 6 to move smoothly inside the water mixing tank 2, in order to ensure that the control module 6 can move to its proper position and can block the first water distribution pipe 3 or the second water distribution pipe 4, a through-slot fan blade 67 is further provided in the two central fixed shells 63, and the through-slot fan blades 67 are fixed by a connecting rod 673, and non-parallel cleaning bristles are staggered on the connecting rod 673. When the through-slot fan blade 67 contacts the first inner convex shell 211 or the second inner convex shell 221, the first inner convex shell 211 is used to clean the brush. Or the second inner protrusion shell 221 squeezes the through-groove fan blades 67, driving the connecting rod 673 to shuttle through the water groove 631, thereby achieving the purpose of cleaning the water groove 631 and preventing impurities from clogging the water groove 631. In addition, since the through-groove fan blades 67 are provided, when the screw rod 5 drives the control module 6 to move, the contact between the through-groove fan blades 67, the spring 68 and the first inner protrusion shell 211 or the second inner protrusion shell 221 can be used to achieve positioning, which is convenient for finding and achieving the blocking of the first water distribution pipe 3 or the second water distribution pipe 4.

[0055] like Figures 6 to 10 As shown, a clearance hole 671 is also provided on the surface of the through-slot fan blade 67, and a sleeve is fixedly connected to the inner side of the through-slot fan blade 67, and an arc-shaped adjustment groove 672 is provided on the side wall of the sleeve, the first inner protrusion shell 211 is fixedly connected to the first stop rod 212 on the side wall corresponding to the through-slot fan blade 67, and the second inner protrusion shell 221 is fixedly connected to the second stop rod 223 on the side wall corresponding to the through-slot fan blade 67.

[0056] Since the connecting rod 673 between the two through-slot fan blades 67 can slide relative to the water groove 631 on the central fixed shell 63 when the through-slot fan blade 67 contacts the first inner protrusion shell 211 or the second inner protrusion shell 221, thereby achieving the purpose of cleaning, but cleaning at a single position cannot ensure that the water groove 631 is unobstructed to a large extent. Therefore, in one embodiment of the present invention, when the through-slot fan blade 67 moves with the closed cover shell 61 to contact the first inner protrusion shell 211 or the second inner protrusion shell 221, the first stop rod 212 or the second stop rod 223 can pass through the clearance hole 671 and slide in the adjustment groove 672. Since the adjustment groove 672 is an arc-shaped structure, when the first stop rod 212 or the second stop rod 223 cooperates with the adjustment groove 672, it can drive the through-slot fan blade 67 and the connecting rod 673 to rotate a certain angle, and make the connecting rod 673 rotate a certain angle in the water groove 631, thereby achieving the purpose of cleaning the entire water groove 631.

[0057] Working principle: In the prior art, in the path from the inlet main pipe 1 to the outlet pipe of the heat exchange station, double inlet pipes and double outlet pipes are provided, so it is difficult to carry out automated transformation. In one embodiment of the present invention, a mixing water tank body 2 is added between the inlet main pipe 1 and the outlet pipe, and at least two outlet pipes, that is, the first branch pipe 3 and the second branch pipe 4 in the present invention, are both communicated in the mixing water tank body 2. When the inlet main pipe 1 inputs water, the water flow fills the mixing water tank body 2 and is discharged through the first branch pipe 3 and the second branch pipe 4. Specifically, since it is not necessary to simultaneously open the first branch pipe 3 and the second branch pipe 4 when the heat exchange station is working, the control module 6 can be used to block the first branch pipe 3 or the second branch pipe 4. The control module 6 is driven to move smoothly in the mixing water tank body 2 by the rotation of the lead screw 5 in cooperation with the ball nut 64, so as to block the first branch pipe 3 or the second branch pipe 4. When the first branch pipe 3 is blocked, the second branch pipe 4 is used for normal water supply. When the second branch pipe 4 is blocked, the first branch pipe 3 is used for normal water supply. After the first branch pipe 3 or the second branch pipe 4 is blocked, the first branch pipe 3 or the second branch pipe 4 can be detached and cleaned and maintained, without affecting the normal operation of the heat exchange station, realizing maintenance without shutting down. In addition, in order to adapt to automated transformation, the output end of a driving device, such as a servo motor, for driving the rotation of the lead screw 5 can be connected to the lead screw 5, that is, an operator can control the rotation of the lead screw 5 at the control end, drive the control module 6 to block the first branch pipe 3 or the second branch pipe 4, and carry out subsequent cleaning and maintenance work; when a driving device, such as a servo motor, controls the rotation of the lead screw 5, the lead screw 5 can drive the closing cover 61 and the central fixed shell 63 to move through cooperation with the ball nut 64, and the sealing chamber 62 in the middle of the closing cover 61 is used to isolate the passage from the inside of the mixing water tank body 2 to the first branch pipe 3 or the second branch pipe 4, so as to block the first branch pipe 3 or the second branch pipe 4 and achieve the purpose of maintenance without shutting down; it should be noted that, in one embodiment of the present invention, the connection between the central fixed shell 63 and the closing cover 61 is locked by means of a screw rod and a bolt, and after it is assembled, it is put into the mixing water tank body 2.

[0058] Since in the present invention, the closed housing 61 can block the passage from the inside of the mixing water tank body 2 to the first water distribution pipe 3 or the second water distribution pipe 4. It should be noted that if the closed housing 61 blocks the passage between the mixing water tank body 2 and the second water distribution pipe 4, it is also necessary to keep the passage from the water inlet main pipe 1 to the mixing water tank body 2 and the first water distribution pipe 3 unobstructed. Therefore, in an embodiment of the present invention, a water passage groove 631 is provided in the central fixed housing 63. After the passage between the mixing water tank body 2 and the second water distribution pipe 4 is closed by the sealing chamber 62, the water source input into the water inlet main pipe 1 needs to be output to the inside of the mixing water tank body 2 through the water passage groove 631, and it does not affect the passage from the mixing water tank body 2 to the first water distribution pipe 3; a first end cover 21 and a second end cover 22 are respectively arranged at both ends of the mixing water tank body 2. In order to ensure that the water source input into the water inlet main pipe 1 can smoothly enter the mixing water tank body 2, a plurality of water inlet holes 222 arranged in a circumferential array are opened on the side wall of the second inner convex housing 221 of the second end cover 22. By using the water inlet holes 222, the water source input into the water inlet main pipe 1 can smoothly enter the mixing water tank body 2, and then continue to pass through the water passage groove 631 on the central fixed housing 63 in the middle of the closed housing 61 and fill the inside of the mixing water tank body 2. Even if the lead screw 5 drives the closed housing 61 to smoothly move inside the mixing water tank body 2, it will not affect the passage from the water inlet main pipe 1 to the mixing water tank body 2 and to the first water distribution pipe 3 or the second water distribution pipe 4;

[0059] Since the control module 6 will smoothly slide from one end to the other end inside the mixing water tank body 2 under the action of the lead screw 5, and when the closed housing 61 is used to block the passage from the mixing water tank body 2 to the first water distribution pipe 3 or the second water distribution pipe 4, it is also necessary to have good sealing performance. In an embodiment of the present invention, a packing housing 65 is fixedly connected to the inner side of the closed housing 61. The surface of the packing housing 65 is provided with an inward groove, and an elastic material, such as rubber, can be sleeved in the packing housing 65. When the closed housing 61 moves with the movement of the lead screw 5, the passage from the mixing water tank body 2 to the first water distribution pipe 3 or the second water distribution pipe 4 can be blocked based on the elastic material, achieving good sealing performance.

[0060] When the screw rod 5 drives the control module 6 to move smoothly inside the water mixing tank body 2, in order to ensure that the control module 6 can move to its proper position and can block the first water distribution pipe 3 or the second water distribution pipe 4, a through-slot fan blade 67 is further provided in the two central fixed shells 63, and a connecting rod 673 is used to fix the through-slot fan blade 67 between the through-slot fan blades 67. Non-parallel cleaning bristles are staggered on the connecting rod 673. When the through-slot fan blade 67 contacts the first inner convex shell 211 or the second inner convex shell 221, the first inner convex shell 221 is used to seal the first water distribution pipe 3 or the second water distribution pipe 4. The shell 211 or the second inner convex shell 221 squeezes the through-slot fan blade 67, driving the connecting rod 673 to shuttle through the water groove 631, thereby achieving the purpose of cleaning the water groove 631 and preventing impurities from clogging the water groove 631. In addition, since the through-slot fan blade 67 is provided, when the screw rod 5 drives the control module 6 to move, the contact between the through-slot fan blade 67, the spring 68 and the first inner convex shell 211 or the second inner convex shell 221 can be used to achieve positioning, which is convenient for finding and achieving the first water distribution pipe 3 or the second water distribution pipe 3. The two-way water pipe 4 is blocked; because the connecting rod 673 between the two through-groove blades 67 can slide relative to the water groove 631 on the central fixed shell 63 when the through-groove blade 67 contacts the first inner protrusion shell 211 or the second inner protrusion shell 221, thereby achieving the purpose of cleaning, but cleaning at a single position cannot ensure that the water groove 631 is unblocked to a large extent. Therefore, in one embodiment of the present invention, when the through-groove blade 67 moves with the closed cover 61 to the position where it contacts the first inner protrusion shell 211, the through-groove blade 67 is in contact with the first inner protrusion shell 211. Or when the second inner protrusion shell 221 contacts, the first stop rod 212 or the second stop rod 223 can pass through the clearance hole 671 and slide in the adjustment groove 672. Since the adjustment groove 672 is an arc-shaped structure, when the first stop rod 212 or the second stop rod 223 cooperates with the adjustment groove 672, it can drive the through-slot fan blades 67 and the connecting rod 673 to rotate a certain angle, and make the connecting rod 673 rotate a certain angle in the water groove 631, thereby achieving the purpose of cleaning the complete water groove 631.

[0061] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic control device for a heat exchange station, comprising: A mixing water tank body (2), which is connected to the total water inlet pipe (1) through a flange; A first branch water pipe (3), which is connected to the mixing water tank body (2) through a flange; A second branch water pipe (4), which is connected to the mixing water tank body (2) through a flange and is arranged staggeredly with the first branch water pipe (3); It is characterized in that: It further includes a lead screw (5), a ball nut (64) and a control module (6); The lead screw (5) penetrates through the mixing water tank body (2) and is threadedly connected to the ball nut (64); the ball nut (64) is arranged in the control module (6); the control module (6) is arranged in the mixing water tank body (2), and when the lead screw (5) rotates, it can slide from one end of the mixing water tank body (2) to the other end to close the first branch water pipe (3) or the second branch water pipe (4).

2. The automatic control device for a heat exchange station according to claim 1, characterized in that: Both ends of the mixing water tank body (2) are fixedly connected with a first end cover (21) and a second end cover (22) respectively, and the total water inlet pipe (1) is connected to the second end cover (22); one end of the lead screw (5) penetrates into the mixing water tank body (2) from the first end cover (21), and the other end is rotatably connected to the second end cover (22).

3. An automatic control device for a heat exchange station according to claim 2, characterized in that: The control module (6) includes an enclosing cover shell (61) and a central fixing shell (63). A sealing chamber (62) is arranged on the outer side of the middle part of the enclosing cover shell (61); there are two central fixing shells (63), which are symmetrically fixedly connected to both ends of the enclosing cover shell (61), and the central fixing shell (63) and the enclosing cover shell (61) are arranged coaxially; the ball nut (64) is fixedly connected between the two central fixing shells (63).

4. An automatic control device for a heat exchange station according to claim 3, characterized in that: A water through groove (631) is further arranged on the central fixing shell (63), and a plurality of water through grooves (631) are arranged in a circumferential array around the ball nut (64).

5. The automated control device for a heat exchange station according to claim 4, wherein: A second inner convex shell (221) is fixedly connected to the middle part of the end of the second end cover (22) located inside the mixing water tank body (2), and a water inlet hole (222) is opened on the side wall of the second inner convex shell (221), and the other end of the lead screw (5) penetrates through the second inner convex shell (221).

6. The automatic control device for a heat exchange station according to claim 5, characterized in that: A first inner convex shell (211) is correspondingly fixedly connected to the middle part of the end of the first end cover (21) located inside the mixing water tank body (2), and one end of the lead screw (5) penetrates through the first inner convex shell (211).

7. An automated control device for a heat exchange station according to claim 6, characterized in that: The control module (6) further includes a packing shell (65), the packing shell (65) is fixedly connected to the inner side of the enclosing cover shell (61), and the packing shell (65) and the enclosing cover shell (61) are arranged coaxially; the packing shell (65) is used for filling elastic materials.

8. An automatic control device for a heat exchange station according to claim 7, characterized in that: The control module (6) further includes a scraper (66), there are two scrapers (66), which are symmetrically fixedly connected to the outer side of the enclosing cover shell (61), and the outer edge of the scraper (66) is attached to the inner wall of the mixing water tank body (2).

9. An automatic control device for a heat exchange station according to claim 8, characterized in that: The control module (6) further includes through-slot fan blades (67). Two through-slot fan blades (67) are provided and are respectively arranged in two central fixed shells (63). The two through-slot fan blades (67) are fixedly connected by a plurality of link rods (673) arranged in a circumferential array. The link rods (673) penetrate through the water through-channel (631). A spring (68) is arranged between the through-slot fan blade (67) and the inner wall of the central fixed shell (63), and the spring (68) is located inside the plurality of link rods (673).

10. The automatic control device for a heat exchange station according to claim 9, characterized in that: A relief hole (671) is further formed on the surface of the through-slot fan blade (67). A sleeve is fixedly connected to the inner side of the through-slot fan blade (67). An arc-shaped adjustment groove (672) is formed on the side wall of the sleeve. A first stop rod (212) is fixedly connected to the side wall of the first inner convex shell (211) corresponding to the through-slot fan blade (67), and a second stop rod (223) is fixedly connected to the side wall of the second inner convex shell (221) corresponding to the through-slot fan blade (67).

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