Pipeline flow regulation control device for heat exchange unit

Abstract

The utility model discloses a pipeline flow regulation control device for a heat exchange unit, which relates to the technical field of flow control, and comprises a core rod slider, a matching hole is arranged on the core rod slider, an input pipe is connected onto the matching hole, a joint is arranged at the tail end of the input pipe, a regulating mechanism is arranged in the core rod slider, and the regulating mechanism is connected with the input pipe. The adjusting mechanism comprises a flow divider fixed in a core rod slider, a flow dividing through hole is formed in the flow divider, an adjusting electric push rod is fixedly installed at one end of the core rod slider, a sealing piston is fixedly installed at the output tail end of the adjusting electric push rod, a conical plunger is arranged on the sealing piston, and the conical plunger is connected with the adjusting electric push rod. A positioning spring is arranged at one end of the conical plunger, a limiting mechanism is arranged in the sealing piston, the adjustable flow control device of the pipeline can adjust the flow in a plurality of diversion through holes at the same time, the flow of only one diversion through hole can be adjusted, and the adjustable flow control device is short in overall structure and suitable for different use environments.

Description

Technical Field

[0001] The utility model relates to the technical field of flow control, in particular to a pipeline flow regulating and controlling device for a heat exchange unit. Background Art

[0002] The regulating device in the traditional heat exchange unit mostly adopts a circuit composed of an electric regulating valve with the same diameter as the pipeline and a system, such as Figure 5 As shown, this ensures flow regulation between the primary and secondary sides of the unit during dynamic heat exchange balance. The disadvantages of this circuit are long response times for large flow rate regulation and long thermal equilibrium times, resulting in large fluctuations in system operation and high energy consumption. The cost of using large-scale electric control valves for units with a system diameter of DN400 and above is approximately 10 times higher than for units below DN400. Furthermore, mature products for this component are mostly foreign brands, and due to technical bottlenecks, mature and reliable products are currently unavailable in China.

[0003] Publication number CN203231685U discloses a flow regulating device for branching a heat exchanger group, including: a diverter, an input pipe and a regulating assembly. The diverter is provided with a plurality of diverter holes penetrating the diverter along the length direction of the diverter. The plurality of diverter holes are respectively connected to the plurality of branches of the heat exchanger group, and one end of the input pipe is connected to the plurality of diverter holes.

[0004] The above-mentioned device adjusts the flow rate of each branch hole by adjusting the length of the core rod extending into the branch hole. In order to ensure the gradient change of the adjustment, the length of the core rod is designed to be longer, which makes the entire length of the entire device longer. It is not suitable for use in a small space environment. For this reason, an adjustable flow control device for the pipeline is proposed. Summary of the Invention

[0005] The purpose of the utility model is to provide a pipeline flow regulating and controlling device for a heat exchange unit to solve the problems raised in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipeline flow regulating control device for a heat exchanger unit, comprising a core rod slider, a matching hole is provided on the core rod slider, an input pipe is connected to the matching hole, a joint is provided at the end of the input pipe, an adjusting mechanism is provided in the core rod slider, the adjusting mechanism comprises a diverter fixed in the core rod slider, a diversion flow hole is opened on the diverter, an adjusting electric push rod is fixedly installed at one end of the core rod slider, a sealing piston is fixedly installed at the output end of the adjusting electric push rod, a conical plunger is provided on the sealing piston, a positioning spring is provided at one end of the conical plunger, a limiting mechanism is provided in the sealing piston, the limiting mechanism comprises an iron spring seat movably installed in the sealing piston, a limiting block is fixedly installed on one side of the iron spring seat, a limiting spring is provided on the other side of the iron spring seat, an electromagnet is provided at the end of the limiting spring, and the electromagnet can adsorb the iron spring seat.

[0007] Preferably, a positioning groove is provided on one end of the core rod slider, and a limiting sliding groove is provided on the sealing piston.

[0008] Preferably, the diverter flow hole on the diverter is aligned front to back with the positioning groove on the sealing piston.

[0009] Preferably, the sealing piston is movably installed in the core rod slider by adjusting the electric push rod, the conical plunger is movably installed on one side of the diversion hole through the sealing piston, one end of the positioning spring is fixed on the conical plunger, and the other end of the positioning spring is fixed on one end of the core rod slider, the conical plunger is movably installed on the sealing piston through a limiting groove, and the positioning spring can pull the conical plunger on the sealing piston to reset.

[0010] Preferably, an installation chamber is provided in the sealing piston, and the iron spring seat is movably installed in the sealing piston through the installation chamber. A magnet positioning seat is provided on the electromagnet, and the electromagnet is installed at the end of the limit spring through the magnet positioning seat. The limit spring provides elastic force for the iron spring seat.

[0011] Preferably, a through hole is provided on the installation chamber, and the limiting block extends out of the installation chamber through the through hole.

[0012] Preferably, one end of the limit spring is connected to the iron spring seat, the limit spring is connected to the inner wall of the installation chamber, the electromagnet is aligned one by one with the iron spring seat, and the conical plunger is limited in the limit slot by a limit block, and the limit block can limit the movement of the conical plunger.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) The present application can drive the sealing piston to move forward by adjusting the electric push rod. When the sealing piston moves forward, it will drive the conical plunger to move forward. When the conical plunger moves forward, it will enter the bypass flow hole. The deeper the conical plunger goes into the bypass flow hole, the smaller the gap between it and the bypass flow hole. In this way, the flow in each branch of the heat exchanger unit can be adjusted at the same time. The overall structure is relatively short and suitable for different use environments.

[0015] (2) The present application can drive the sealing piston to move forward by adjusting the electric push rod. When the sealing piston moves forward, each group of electromagnets can be controlled to close at different times, so that the sealing piston moves forward on each group of conical plungers by different distances. After the sealing piston moves forward on each group of conical plungers by different distances, the limit block will clamp the conical plunger in the limit slot. Then, the electric push rod can be adjusted to drive the conical plunger to move forward, and the depth of each group of conical plungers entering the branch flow hole can be adjusted, thereby independently adjusting the flow in each branch of the heat exchanger unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the local structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the adjustment mechanism of the utility model;

[0019] Figure 4 This is a schematic diagram of the limiting mechanism of the utility model;

[0020] Figure 5 It is an existing heat exchange unit that uses an electric regulating valve to regulate pipeline flow.

[0021] Numbers in the figure: 1. Core rod slider; 2. Matching hole; 3. Input pipe; 4. Connector; 5. Adjustment mechanism; 501. Diverter; 502. Diverter hole; 503. Conical plunger; 504. Sealing piston; 505. Positioning spring; 506. Positioning groove; 507. Adjustment electric push rod; 6. Limiting mechanism; 601. Limiting slide; 602. Limiting block; 603. Iron spring seat; 604. Limiting spring; 605. Electromagnet; 606. Magnet positioning seat; 607. Installation chamber. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figure 1 and Figure 2 As shown, an embodiment of the utility model provides a technical solution of an adjustable flow control device for pipeline flow, which is arranged on the primary side pipeline of each heat exchanger of the heat exchanger unit to adjust the pipeline flow, including a core rod slider 1, a matching hole 2 is provided on the core rod slider 1, an input pipe 3 is connected to the matching hole 2, and a joint 4 is provided at the end of the input pipe 3, an adjusting mechanism 5 is provided in the core rod slider 1, and a limiting mechanism 6 is provided in the sealing piston 504. Through the coordinated use of the adjusting mechanism 5 and the limiting mechanism 6, the flow in multiple branch holes 502 can be adjusted simultaneously, or only the flow of one of the branch holes 502 can be adjusted.

[0024] like Figure 2 and Figure 3 As shown, the adjustment mechanism 5 includes a diverter 501 fixed in the core rod slider 1, a diverter flow hole 502 is provided on the diverter 501, an adjustment electric push rod 507 is fixedly installed at one end of the core rod slider 1, a sealing piston 504 is fixedly installed at the output end of the adjustment electric push rod 507, a conical plunger 503 is provided on the sealing piston 504, a positioning spring 505 is provided at one end of the conical plunger 503, a positioning groove 506 is provided at one end of the core rod slider 1, and a limiting slide groove 601 is provided on the sealing piston 504.

[0025] Specifically, by adjusting the electric push rod 507, the sealing piston 504 can be driven to move forward. When the sealing piston 504 moves forward, it will drive the conical plunger 503 to move forward. When the conical plunger 503 moves forward, it will enter the bypass hole 502. The deeper the conical plunger 503 goes into the bypass hole 502, the smaller the gap between it and the bypass hole 502, thereby simultaneously adjusting the flow in each branch of the heat exchanger unit.

[0026] like Figure 2 and Figure 4As shown, the limiting mechanism 6 includes an iron spring seat 603 movably mounted in the sealing piston 504, a limiting block 602 is fixedly mounted on one side of the iron spring seat 603, a limiting spring 604 is provided on the other side of the iron spring seat 603, an electromagnet 605 is provided at the end of the limiting spring 604, an installation chamber 607 is opened in the sealing piston 504, the iron spring seat 603 is movably mounted in the sealing piston 504 through the installation chamber 607, a magnet positioning seat 606 is provided on the electromagnet 605, and the electromagnet 605 is installed at the end of the limiting spring 604 through the magnet positioning seat 606.

[0027] Specifically, the sealing piston 504 can be driven to move forward by adjusting the electric push rod 507. When the sealing piston 504 moves forward, each group of electromagnets 605 can be controlled to close at different times, so that the sealing piston 504 advances different distances on each group of conical plungers 503. After the sealing piston 504 advances different distances on each group of conical plungers 503, the limit block 602 will clamp the conical plunger 503 in the limit slide groove 601. Thereafter, the conical plunger 503 can be driven to move forward by adjusting the electric push rod 507, and the depth of each group of conical plungers 503 entering the branch flow hole 502 can be adjusted, and the refrigerant passing through each branch flow hole 502 can be adjusted, thereby independently adjusting the flow in each branch of the heat exchanger unit.

[0028] Working principle: The refrigerant in the air conditioner enters the input pipe 3 from the indoor and outdoor connecting pipes, and the refrigerant in the input pipe 3 enters multiple branch holes 502. Finally, the refrigerant passes through multiple branch holes 502 and enters multiple branches of the heat exchanger unit. During this process, the adjustment electric push rod 507 can be started. After starting the adjustment electric push rod 507, it will drive the sealing piston 504 to move forward. When the sealing piston 504 moves forward, it will drive the conical plunger 503 to move forward. When the conical plunger 503 moves forward, it will enter the branch hole 502. The deeper the conical plunger 503 goes into the branch hole 502, the smaller the gap between it and the branch hole 502, thereby adjusting the flow in each branch of the heat exchanger unit at the same time. When the sealing piston 504 moves forward, To control the closing of each group of electromagnets 605, after the electromagnets 605 are closed, the reset limit spring 604 will push the limit block 602 to move forward, so that the limit block 602 will clamp the conical plunger 503 in the limit slide groove 601, and the closing time of each group of electromagnets 605 can be controlled independently, thereby controlling the sealing piston 504 to advance different distances on each group of conical plungers 503. After the sealing piston 504 advances different distances on each group of conical plungers 503, the conical plunger 503 can be driven forward by adjusting the electric push rod 507, thereby adjusting the depth of each group of conical plungers 503 entering the branch flow hole 502, adjusting the refrigerant passing through each branch flow hole 502, and independently adjusting the flow in each branch of the heat exchanger unit.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A pipeline flow control device for a heat exchange unit, comprising a core rod slider (1), wherein the core rod slider (1) is provided with a matching hole (2), an input pipe (3) is connected to the matching hole (2), and a joint (4) is provided at the end of the input pipe (3), characterized in that: The mandrel slider (1) is provided with an adjusting mechanism (5), the adjusting mechanism (5) comprises a diverter (501) fixed in the mandrel slider (1), a diverter hole (502) is provided on the diverter (501), an adjusting electric push rod (507) is fixedly installed at one end of the mandrel slider (1), a sealing piston (504) is fixedly installed at the output end of the adjusting electric push rod (507), a conical plunger (503) is provided on the sealing piston (504), and the mandrel slider (1) is provided with a regulating electric push rod (507). A positioning spring (505) is provided at one end of the tapered plunger (503), a limiting mechanism (6) is provided in the sealing piston (504), and the limiting mechanism (6) comprises an iron spring seat (603) movably mounted in the sealing piston (504), a limiting block (602) is fixedly mounted on one side of the iron spring seat (603), a limiting spring (604) is provided on the other side of the iron spring seat (603), and an electromagnet (605) is provided at the end of the limiting spring (604).

2. The pipeline flow regulating control device for a heat exchanger unit according to claim 1, characterized in that: A positioning groove (506) is provided at one end of the core rod slider (1), and a limiting sliding groove (601) is provided on the sealing piston (504).

3. The pipeline flow regulating and controlling device for a heat exchanger unit according to claim 1, characterized in that: The diverter hole (502) on the diverter (501) is aligned front to back with the positioning groove (506) on the sealing piston (504).

4. The pipeline flow regulating and controlling device for a heat exchanger unit according to claim 3, characterized in that: The sealing piston (504) is movably mounted in the core rod slider (1) by adjusting the electric push rod (507), the conical plunger (503) is movably mounted on one side of the diversion hole (502) through the sealing piston (504), one end of the positioning spring (505) is fixed on the conical plunger (503), and the other end of the positioning spring (505) is fixed on one end of the core rod slider (1), and the conical plunger (503) is movably mounted on the sealing piston (504) through the limiting slide groove (601).

5. The pipeline flow regulating and controlling device for a heat exchanger unit according to claim 4, characterized in that: An installation chamber (607) is provided in the sealing piston (504), and the iron spring seat (603) is movably installed in the sealing piston (504) through the installation chamber (607). A magnet positioning seat (606) is provided on the electromagnet (605), and the electromagnet (605) is installed at the end of the limit spring (604) through the magnet positioning seat (606).

6. The pipeline flow regulating and controlling device for a heat exchanger unit according to claim 5, characterized in that: A through hole is provided on the installation chamber (607), and the limiting block (602) extends out of the installation chamber (607) through the through hole.

7. The pipeline flow regulating and controlling device for a heat exchanger unit according to claim 6, characterized in that: One end of the limit spring (604) is connected to the iron spring seat (603), and the limit spring (604) is connected to the inner wall of the installation chamber (607). The electromagnet (605) is aligned one by one with the iron spring seat (603), and the conical plunger (503) is limited in the limit slot (601) by the limit block (602).

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