Test device for thermostatic valves

Abstract

The present application discloses a testing device for a temperature control valve, comprising a frame, a hot water tank recessed in the frame, a heating pipe arranged in the hot water tank, a step arranged in the hot water tank, a plurality of through holes evenly arranged in sequence on the surface of the step, each of the through holes being provided with a locking nut capable of covering the through hole, a cylinder controlled by a switch valve being provided on the frame directly above each of the through holes, a piston rod of the cylinder being arranged toward the through hole, a cold water tank being provided outside the hot water tank, a cold water pipe connected to the cold water tank being provided at the bottom of each of the through holes, a switch valve being provided on the cold water pipe, the testing device for the temperature control valve can be used to test the temperature control valve before it leaves the factory to ensure the quality of the temperature control valve, and the testing device is relatively convenient for testing, saves time and effort, and avoids field testing.

Description

Technical Field

[0001] The present application relates to the field of temperature control valves, and in particular to a testing device for temperature control valves. Background Art

[0002] Thermostatic valve is a water temperature monitoring and control device installed in the cooling water tank of the equipment. When the water temperature around the valve body of the thermostatic valve exceeds the critical value, the thermostatic valve opens and cold water enters the valve body. When the temperature of the valve body drops to a certain temperature, the cold water is automatically cut off from entering the valve body. In the prior art, the thermostatic valve can only be installed and tested on site, which is time-consuming and labor-intensive. Summary of the invention

[0003] The object of the present invention is to provide a testing device for a temperature control valve to overcome the deficiencies in the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The embodiment of the present application discloses a testing device for a temperature control valve, which is characterized by comprising a frame, a hot water tank recessed in the frame, a heating pipe arranged in the hot water tank, a step arranged in the hot water tank, a plurality of through holes evenly arranged in sequence on the surface of the step, each of the through holes being provided with a locking nut capable of covering the through hole, a cylinder controlled by a switch valve being provided on the frame directly above each of the through holes, a piston rod of the cylinder being arranged toward the through hole, a cold water tank being provided outside the hot water tank, a cold water pipe connected to the cold water tank being provided at the bottom of each of the through holes, and a switch valve being provided on the cold water pipe.

[0006] Preferably, in the above-mentioned testing device for a temperature control valve, overflow pipes are provided on the hot water tank and the cold water tank.

[0007] Preferably, in the above-mentioned testing device for a temperature control valve, a height nut is sleeved on the piston rod of the cylinder, a through hole is provided on the height nut, a thread is provided in the through hole, and a bolt with a matching thread is provided outside the height nut.

[0008] Preferably, in the above-mentioned testing device for a temperature control valve, a water temperature controller of a hot water tank is connected to the rack.

[0009] Preferably, in the above-mentioned testing device for a temperature control valve, the cold water tank is higher than the step.

[0010] Compared with the prior art, the advantages of the present invention are:

[0011] The testing device for the temperature control valve can be used to test the temperature control valve before it leaves the factory to ensure the quality of the temperature control valve. The testing device is more convenient for testing, saves time and effort, and avoids field testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, it is easy to obtain other drawings based on these drawings without creative work.

[0013] Figure 1 Shown is a schematic structural diagram of a testing device for a temperature control valve in a specific embodiment of the present invention. DETAILED DESCRIPTION

[0014] The following will describe the technical solutions in the embodiments of the present invention in detail in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0015] Ginseng Figure 1 As shown, the testing device for the temperature control valve in this embodiment includes a frame 1, a hot water tank 2 is recessed in the frame 1, a heating pipe 3 is arranged in the hot water tank 2, a step 4 is also arranged in the hot water tank 2, a plurality of through holes 5 are evenly arranged on the surface of the step 4 in sequence, each through hole 5 is provided with a locking nut 6 that can cover the through hole, a cylinder 7 controlled by a switch valve is arranged on the frame 1 directly above each through hole 5, and a piston rod of the cylinder 7 is arranged toward the through hole 5, a cold water tank 8 is arranged outside the hot water tank 2, a cold water pipe 9 connected to the cold water tank 8 is arranged at the bottom of each through hole 5, and a switch valve is arranged on the cold water pipe 9.

[0016] In this technical solution, the testing device for the temperature control valve can be used to test the temperature control valve before it leaves the factory to ensure the quality of the temperature control valve. In addition, the testing device is convenient to test, saves time and effort, and avoids field testing.

[0017] In one embodiment, both the hot water tank 2 and the cold water tank 8 are provided with overflow pipes 10 .

[0018] In this technical solution, excessive water in the hot water tank and the cold water tank is prevented from overflowing the tank.

[0019] In one embodiment, a height nut 701 is sleeved on the piston rod of the cylinder 7, a through hole 702 is provided on the height nut 701, a thread is provided inside the through hole 702, and a bolt 703 with matching thread is provided outside the height nut 701.

[0020] In this technical solution, after the other end of the temperature control valve is pressed by the piston rod of the cylinder, the height nut is adjusted by the bolt to fix the temperature control valve by the height nut, thereby ensuring the stability of the temperature control valve when being tested.

[0021] In one embodiment, the frame 1 is connected to a water temperature controller 11 of the hot water tank 2 .

[0022] In this technical solution, the water temperature in the hot water tank is controlled to be constant through a water temperature control device and a hot water pipe. The water temperature controller is a control module for controlling water temperature in conventional technology.

[0023] In one embodiment, the cold water tank 8 is higher than the step 4, and the height between the end surface of the step 4 and the end surface of the hot water tank 2 is less than the height of the temperature control valve to be measured.

[0024] In this technical solution, the height relationship between the components is set to ensure the stable operation of the test device.

[0025] Specific implementation principle:

[0026] Manually connect the bottom end of the temperature control valve with the tightening nut, start the cylinder to press down by opening the switch valve, the piston rod of the cylinder is against the top of the temperature control valve, lower the height nut to fix the top of the temperature control valve, open the switch valve on the cold water pipe, because the hot water tank is at a constant temperature higher than the set temperature of the temperature control valve under the action of the water temperature controller and the heating tube, the cold water in the cold water tank flows into the temperature control valve through the cold water pipe, and the cold water overflows from the top of the temperature control valve to cool itself. If the temperature control valve can automatically cut off the cold water after cooling is completed, and no cold water overflows from the top of the temperature control valve, the temperature control valve passes the test, otherwise it fails the test. At this time, manually close the switch valve to cut off the cold water pipe, lift the pneumatic piston rod, unscrew the temperature control valve, and replace it with a new temperature control valve to be tested.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] The above is only a specific implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A testing device for a temperature control valve, characterized in that: The invention comprises a frame, wherein a hot water tank is recessed in the frame, a heating pipe is arranged in the hot water tank, a step is also arranged in the hot water tank, a plurality of through holes are evenly arranged on the surface of the step in sequence, each of the through holes is provided with a locking nut capable of covering the through hole, a cylinder controlled by a switch valve is arranged on the frame directly above each through hole, a piston rod of the cylinder is arranged toward the through hole, a cold water tank is arranged outside the hot water tank, a cold water pipe connected to the cold water tank is arranged at the bottom of each through hole, a switch valve is arranged on the cold water pipe, a height nut is sleeved on the piston rod of the cylinder, a through hole is arranged on the height nut, a thread is arranged in the through hole, a bolt with a matching thread is arranged outside the height nut, and a water temperature controller for connecting to the hot water tank is provided on the frame. Controller, manually connect the bottom end of the temperature control valve with the locking nut, start the cylinder to press down by opening the switch valve, the piston rod of the cylinder is against the top of the temperature control valve, lower the height nut to fix the top of the temperature control valve, open the switch valve on the cold water pipe, because the hot water tank is at a constant temperature higher than the set temperature of the temperature control valve under the action of the water temperature controller and the heating tube, the cold water in the cold water tank flows into the temperature control valve through the cold water pipe, and the cold water overflows from the top of the temperature control valve to cool itself. If the temperature control valve can automatically cut off the cold water after cooling is completed, and there is no cold water overflowing from the top of the temperature control valve, the temperature control valve passes the test, otherwise it fails the test. At this time, manually close the switch valve to cut off the cold water pipe, lift the piston rod of the cylinder, unscrew the temperature control valve, and replace it with a new temperature control valve to be tested.

2. A testing device for a temperature control valve according to claim 1, characterized in that: The hot water tank and the cold water tank are both provided with overflow pipes.

3. A testing device for a temperature control valve according to claim 1, characterized in that: The cold water tank is higher than the steps.

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