A split case pump with antifreeze effect

Abstract

The invention discloses a split-center pump with antifreeze effect, comprising a pump body and an antifreeze box fixed on the surface of the pump body, the inner cavity of the antifreeze box is respectively divided into a pumping cavity and a heating cavity by a partition plate, the top of the antifreeze box is fixedly connected with a cylinder, the bottom end of the cylinder piston rod penetrates and extends to the inner cavity of the antifreeze box, and the invention relates to the technical field of split-center pumps. The split-center pump with antifreeze effect starts the cylinder at a time to drive the piston plate to move in the pumping cavity in the antifreeze box, at which time the piston plate moves downward, and the air in the pumping cavity is transported to the heating cavity through the air outlet pipe, and then transported to the inside of the pump body after being heated by the heating pipe in the heating cavity, so as to replace the air inside the pump body, and the air in the insulation box is pumped into the pumping cavity by contracting the air pumping pipe, and then transported to the heating cavity for air replacement, and air exchange is performed at a time, so as to prevent the internal air from dropping below zero degrees and causing freezing, and the antifreeze effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of split case pumps, in particular to a split case pump with an antifreeze effect. Background Art

[0002] The split case pump (split case circulation) is also called a single-stage double-suction centrifugal pump. Its main feature is the large flow rate of the conveying medium. The working principle of the split case pump: the impeller is installed in the pump casing and fastened to the pump shaft, and the pump shaft is directly driven by the motor. The liquid enters the pump through the bottom valve and the suction pipe. The liquid discharge port on the pump casing is connected to the discharge pipe. When the pump speed is constant, its pressure head and flow rate are related to the impeller diameter.

[0003] The existing split case pump is easily damaged by freezing in a low temperature environment due to the lack of protective devices when not in use, and has a poor antifreeze effect. Moreover, after freezing, the pump can only wait for its natural thawing. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a split case pump with an antifreeze effect, which solves the above-mentioned problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a split-center pump with antifreeze effect, comprising a pump body and an antifreeze box fixed on the surface of the pump body, the inner cavity of the antifreeze box being divided into a pumping chamber and a heating chamber by a partition plate, the top of the antifreeze box being fixedly connected with a cylinder, the bottom end of the cylinder piston rod passing through and extending to the inner cavity of the antifreeze box, the inner cavity of the pumping chamber being slidably connected with a piston plate, the bottom end of the cylinder piston rod being fixedly connected to the top of the piston plate, the top of the piston plate being connected with a contraction suction pipe, the bottom of the partition plate being connected with an air outlet pipe, the inner cavity of the heating chamber being fixedly connected with a heating pipe, the bottom of the heating chamber being connected with an air guide pipe, and one end of the air guide pipe being connected with the inner cavity of the pump body.

[0006] As a further solution of the present invention: the top of the antifreeze box is fixedly connected to a heat preservation box, the inner cavity of the heat preservation box is fixedly connected to heat preservation cotton, the top of the heat preservation box is connected to a compression spring valve for air intake, the elastic end of the compression spring valve faces the inner cavity of the heat preservation box, and the bottom of the heat preservation box is connected to the contraction exhaust pipe through a connecting groove.

[0007] As a further solution of the present invention: a drainage slope is provided at the bottom of the antifreeze box.

[0008] As a further solution of the present invention: a one-way valve with the flow direction toward the partition plate is installed on the contraction exhaust pipe.

[0009] As a further solution of the present invention: a one-way valve is installed on the air outlet pipe, with the air flowing toward the heating chamber.

[0010] As a further solution of the present invention: two antifreeze boxes are provided and are symmetrically distributed on both sides of the pump body.

[0011] As a further solution of the present invention: one side of the pump body is fixedly connected to a base plate by a locking bolt, the top of the base plate is fixedly connected to a protective frame, the inner cavity of the protective frame is fixedly connected to a sealing cotton abutting the surface of the pump body, and two protective frames are provided and symmetrically distributed on both sides of the pump body.

[0012] As a further solution of the present invention: an elastic rod is fixedly connected to one side of the bottom plate, and one end of the elastic rod is fixedly connected to the surface of the protection frame.

[0013] As a further solution of the present invention: the bottom of the pump body is connected to a drainage pipe, and the surface of the drainage pipe is fixedly connected to a solenoid valve.

[0014] The method for using the pump body comprises the following steps:

[0015] Step 1: After use, drain the water in the pump body. If there is still residual water, open the solenoid valve on the surface of the drainage pipe to let the residual water flow out.

[0016] Step 2, set the timing of the cylinder and the heating tube, start the cylinder at a fixed time, drive the piston plate to move in the pumping chamber in the antifreeze box, and then the piston plate moves downward, and the air in the pumping chamber is transported to the heating chamber through the air outlet pipe, and then transported to the inside of the pump body after being heated by the heating tube in the heating chamber, so as to replace the air inside the pump body, and then the piston plate rises, and the air in the insulation box is pumped into the pumping chamber by contracting the air pumping pipe, and then transported to the heating chamber for air replacement;

[0017] Step 3: After the air in the incubator is pumped out, the internal pressure is reduced to form a pressure difference with the outside. At this time, the internal compression spring valve opens under the pressure difference to pump in the outside air, and the heat is kept warm through the heat insulation cotton in the incubator;

[0018] Step 4: When in use, fix the bottom plate to the pump body by means of locking bolts. At this time, the protective frame drives the sealing cotton to be squeezed onto the pump body, and then the protective frame is supported by the elastic rod.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention starts the cylinder at a fixed time to drive the piston plate to move in the pumping chamber in the antifreeze box. At this time, the piston plate moves downward to transport the air in the pumping chamber to the heating chamber through the air outlet pipe, and then transport it to the inside of the pump body after being heated by the heating tube in the heating chamber, so as to replace the air inside the pump body. The air in the insulation box is pumped into the pumping chamber by contracting the air pump, and then transported to the heating chamber for air replacement. The air exchange is performed regularly, which can prevent the internal air from dropping below zero degrees and causing freezing, and has a good antifreeze effect.

[0021] 2. When the present invention is in use, the bottom plate is fixed to the pump body by means of locking bolts, at which time the protection frame drives the sealing cotton to be squeezed onto the pump body, and then the protection frame is supported by elastic rods, so that internal insulation is performed while external insulation is performed, and the lower surface of the protection frame can always abut against the surface of the pump body under the support of the elastic rods.

[0022] 3. In the present invention, after use, the water in the pump body is drained. If there is still residual water, the electromagnetic valve on the surface of the drainage pipe is opened to allow the residual water to flow out, thereby preventing the residual water from freezing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural cross-sectional view of the present invention;

[0024] Figure 2 It is a structural side view of the present invention;

[0025] Figure 3 It is a structural cross-sectional view of the heat preservation box of the present invention;

[0026] Figure 4 For the present invention Figure 1 A partial enlarged view of point A in the middle.

[0027] In the figure: 1. Pump body; 2. Insulation cotton; 3. Antifreeze box; 4. Cylinder; 5. Piston plate; 6. Insulation box; 7. Contraction exhaust pipe; 8. Partition plate; 9. Exhaust pipe; 10. Heating pipe; 11. Air guide pipe; 12. Drainage slope; 13. Pumping chamber; 14. Heating chamber; 15. Compression spring valve; 16. Connecting groove; 17. Bottom plate; 18. Locking bolt; 20. Elastic rod; 21. Protection frame; 22. Sealing cotton; 23. Drainage pipe. DETAILED DESCRIPTION

[0028] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0029] See also Figure 1-4The present invention provides a technical solution: a split-center pump with antifreeze effect, comprising a pump body 1 and an antifreeze box 3 fixed on the surface of the pump body 1, the inner cavity of the antifreeze box 3 is separated into a pumping chamber 13 and a heating chamber 14 by a partition plate 8, the top of the antifreeze box 3 is fixedly connected with a cylinder 4, the bottom end of the piston rod of the cylinder 4 penetrates and extends to the inner cavity of the antifreeze box 3, the inner cavity of the pumping chamber 13 is slidably connected with a piston plate 5, the bottom end of the piston rod of the cylinder 4 is fixedly connected to the top of the piston plate 5, the top of the piston plate 5 is connected with a contraction suction pipe 7, the bottom of the partition plate 8 is connected with an outlet pipe 9, the inner cavity of the heating chamber 14 is fixedly connected with a heating pipe 10, and the bottom of the heating chamber 14 is connected with The air guide pipe 11, one end of which is connected to the inner cavity of the pump body 1, drives the piston plate 5 to move in the pumping chamber 13 in the antifreeze box 3 by starting the cylinder 4 at a fixed time. At this time, the piston plate 5 moves downward, and the air in the pumping chamber 13 is transported to the heating chamber 14 through the air outlet pipe 9, and then transported to the inside of the pump body 1 after being heated by the heating tube 10 in the heating chamber 14, so as to replace the air inside the pump body 1. The air in the insulation box 6 is drawn into the pumping chamber 13 by contracting the air suction pipe 7, and then transported to the heating chamber 14 for air replacement. Regular air exchange can prevent the internal air from dropping below 0 degrees and causing freezing, and the antifreeze effect is good.

[0030] The top of the antifreeze box 3 is fixedly connected with an insulation box 6, and the inner cavity of the insulation box 6 is fixedly connected with insulation cotton 2. The top of the insulation box 6 is connected with a compression spring valve 15 for air intake. After the air in the insulation box 6 is pumped out, the internal pressure is reduced to form a pressure difference with the outside world. At this time, the internal compression spring valve 15 opens under the pressure difference to draw in the outside air, and the insulation is carried out through the insulation cotton 2 in the insulation box 6. The elastic end of the compression spring valve 15 faces the inner cavity of the insulation box 6, and the bottom of the insulation box 6 is connected with the contraction exhaust pipe 7 through the connecting groove 16. The cylinder 4 and the heating tube 10 are set at a time, and the cylinder 4 is started at a time to drive the piston plate 5 in the antifreeze box 3. The piston plate 5 moves in the pumping chamber 13, and at this time the piston plate 5 moves downward, and the air in the pumping chamber 13 is transported to the heating chamber 14 through the air outlet pipe 9, and then transported to the inside of the pump body 1 after being heated by the heating tube 10 in the heating chamber 14, so as to replace the air inside the pump body 1, and then the piston plate 5 rises, and the air in the insulation box 6 is pumped into the pumping chamber 13 by contracting the air suction pipe 7, and then transported to the heating chamber 14 for air replacement, which solves the problem that the existing split-center pump is easily frozen in a low-temperature environment due to the lack of protective devices when not in use, has a poor antifreeze effect, and can only wait for it to thaw naturally after freezing.

[0031] The bottom of the antifreeze box 3 is provided with a drainage slope 12 .

[0032] A one-way valve is installed on the contraction exhaust pipe 7 so that the flow direction is toward the partition plate 8.

[0033] A one-way valve is installed on the air outlet pipe 9 so that the air flows toward the heating chamber 14 .

[0034] There are two antifreeze boxes 3, which are symmetrically distributed on both sides of the pump body 1. After use, the water in the pump body 1 is drained. At this time, there is still residual water. By opening the solenoid valve on the surface of the drainage pipe 23, the residual water inside is discharged; the cylinder 4 and the heating tube 10 are set at a time, and the cylinder 4 is started at a time to drive the piston plate 5 to move in the pumping chamber 13 in the antifreeze box 3. At this time, the piston plate 5 moves downward, and the air in the pumping chamber 13 is transported to the heating chamber 14 through the outlet pipe 9, and then transported to the inside of the pump body 1 after being heated by the heating tube 10 in the heating chamber 14, so as to heat the air inside the pump body 1. The air in the heat preservation box 6 is replaced, and then the piston plate 5 rises, and the air in the heat preservation box 6 is sucked into the pumping chamber 13 by contracting the exhaust pipe 7, and then transported to the heating chamber 14 for air replacement; after the air in the heat preservation box 6 is pumped out, the internal pressure decreases and forms a pressure difference with the outside world. At this time, the internal compression spring valve 15 opens under the pressure difference to suck in the outside air, and the heat is kept warm by the heat preservation cotton 2 in the heat preservation box 6; when in use, the bottom plate 17 is fixed to the pump body 1 by the locking bolts 18, and at this time the protection frame 21 drives the sealing cotton 22 to be squeezed onto the pump body 1, and then the protection frame 21 is supported by the elastic rod 20.

[0035] One side of the pump body 1 is fixedly connected to the base plate 17 by a locking bolt 18, the top of the base plate 17 is fixedly connected to a protective frame 21, the inner cavity of the protective frame 21 is fixedly connected to a sealing cotton 22 abutting against the surface of the pump body 1, two protective frames 21 are provided, and are symmetrically distributed on both sides of the pump body 1. When in use, the base plate 17 is fixed to the pump body 1 by the locking bolt 18, at which time the protective frame 21 drives the sealing cotton 22 to be squeezed onto the pump body 1, and then the protective frame 21 is supported by the elastic rod 20.

[0036] An elastic rod 20 is fixedly connected to one side of the bottom plate 17, and one end of the elastic rod 20 is fixedly connected to the surface of the protection frame 21. After use, the water in the pump body 1 is drained. At this time, there is still residual water. By opening the solenoid valve on the surface of the drainage pipe 23, the residual water inside is discharged; the cylinder 4 and the heating tube 10 are set at a time, and the cylinder 4 is started at a time to drive the piston plate 5 to move in the pumping chamber 13 in the antifreeze box 3. At this time, the piston plate 5 moves downward, and the air in the pumping chamber 13 is transported to the heating chamber 14 through the outlet pipe 9, and then transported to the inside of the pump body 1 after being heated by the heating tube 10 in the heating chamber 14. , the air inside the pump body 1 is replaced, and then the piston plate 5 rises, and the air in the insulation box 6 is sucked into the pumping chamber 13 by contracting the exhaust pipe 7, and then transported to the heating chamber 14 for air replacement; after the air in the insulation box 6 is pumped out, the internal pressure is reduced to form a pressure difference with the outside world. At this time, the internal compression spring valve 15 opens under the pressure difference to suck in the outside air, and the insulation is carried out through the insulation cotton 2 in the insulation box 6; when in use, the bottom plate 17 is fixed to the pump body 1 by the locking bolts 18, and at this time the protection frame 21 drives the sealing cotton 22 to be squeezed on the pump body 1, and then the protection frame 21 is supported by the elastic rod 20.

[0037] The bottom of the pump body 1 is connected to a drainage pipe 23, and a solenoid valve is fixedly connected to the surface of the drainage pipe 23. After use, the water in the pump body 1 is drained. At this time, there is residual water. By opening the solenoid valve on the surface of the drainage pipe 23, the residual water inside can flow out.

[0038] The method for using the pump body 1 comprises the following steps:

[0039] Step 1: After use, drain the water in the pump body 1. If there is still residual water, open the solenoid valve on the surface of the drainage pipe 23 to let the residual water flow out;

[0040] Step 2, set the timing of the cylinder 4 and the heating tube 10, start the cylinder 4 at a fixed time, drive the piston plate 5 to move in the pumping chamber 13 in the antifreeze box 3, and then the piston plate 5 moves downward to transport the air in the pumping chamber 13 to the heating chamber 14 through the air outlet pipe 9, and then transport it to the inside of the pump body 1 after being heated by the heating tube 10 in the heating chamber 14, so as to replace the air in the pump body 1, and then the piston plate 5 rises, and the air in the insulation box 6 is pumped into the pumping chamber 13 by contracting the air pumping pipe 7, and then transported to the heating chamber 14 for air replacement;

[0041] Step 3: After the air in the heat preservation box 6 is pumped out, the internal pressure is reduced to form a pressure difference with the outside. At this time, the internal compression spring valve 15 opens under the pressure difference to pump in the outside air, and the heat preservation is carried out through the heat preservation cotton 2 in the heat preservation box 6;

[0042] Step 4: When in use, the bottom plate 17 is fixed to the pump body 1 by means of the locking bolts 18 . At this time, the protection frame 21 drives the sealing cotton 22 to be squeezed onto the pump body 1 , and then the protection frame 21 is supported by the elastic rod 20 .

[0043] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A split case pump with an antifreeze effect, comprising a pump body (1) and an antifreeze box (3) fixed to the surface of the pump body (1), characterized in that: The inner cavity of the antifreeze box (3) is separated into a pumping chamber (13) and a heating chamber (14) by a partition plate (8), the top of the antifreeze box (3) is fixedly connected to a cylinder (4), the bottom end of the piston rod of the cylinder (4) passes through and extends to the inner cavity of the antifreeze box (3), the inner cavity of the pumping chamber (13) is slidably connected to a piston plate (5), the bottom end of the piston rod of the cylinder (4) is fixedly connected to the top of the piston plate (5), the top of the piston plate (5) is connected to a contraction pumping pipe (7), the bottom of the partition plate (8) is connected to an air outlet pipe (9), the inner cavity of the heating chamber (14) is fixedly connected to a heating pipe (10), the bottom of the heating chamber (14) is connected to an air guide pipe (11), and one end of the air guide pipe (11) is connected to the inner cavity of the pump body (1); The top of the antifreeze box (3) is fixedly connected to a heat preservation box (6), the inner cavity of the heat preservation box (6) is fixedly connected to heat preservation cotton (2), the top of the heat preservation box (6) is connected to a compression spring valve (15) for air intake, the elastic end of the compression spring valve (15) faces the inner cavity of the heat preservation box (6), and the bottom of the heat preservation box (6) is connected to the contraction exhaust pipe (7) through a connecting groove (16).

2. A split case pump with antifreeze effect according to claim 1, characterized in that: The bottom of the antifreeze box (3) is provided with a drainage slope (12).

3. A split case pump with antifreeze effect according to claim 1, characterized in that: The shrinkage exhaust pipe (7) is provided with a one-way valve with the flow direction directed towards the partition plate (8).

4. A split case pump with antifreeze effect according to claim 1, characterized in that: The air outlet pipe (9) is provided with a one-way valve for directing the air flow toward the heating chamber (14).

5. The split case pump with antifreeze effect according to claim 1, characterized in that: Two antifreeze boxes (3) are provided and are symmetrically distributed on both sides of the pump body (1).

6. A split case pump with antifreeze effect according to claim 1, characterized in that: One side of the pump body (1) is fixedly connected to a base plate (17) via a locking bolt (18); the top of the base plate (17) is fixedly connected to a protective frame (21); the inner cavity of the protective frame (21) is fixedly connected to a sealing cotton (22) that abuts against the surface of the pump body (1); two protective frames (21) are provided and are symmetrically distributed on both sides of the pump body (1).

7. A split case pump with antifreeze effect according to claim 6, characterized in that: An elastic rod (20) is fixedly connected to one side of the bottom plate (17), and one end of the elastic rod (20) is fixedly connected to the surface of the protection frame (21).

8. The split case pump with antifreeze effect according to claim 1, characterized in that: The bottom of the pump body (1) is connected to a drainage pipe (23), and a solenoid valve is fixedly connected to the surface of the drainage pipe (23).

Images