CN201382514Y - Pressure independent linear temperature regulating valve - Google Patents
Pressure independent linear temperature regulating valve Download PDFInfo
- Publication number
- CN201382514Y CN201382514Y CN200920005851U CN200920005851U CN201382514Y CN 201382514 Y CN201382514 Y CN 201382514Y CN 200920005851 U CN200920005851 U CN 200920005851U CN 200920005851 U CN200920005851 U CN 200920005851U CN 201382514 Y CN201382514 Y CN 201382514Y
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- pressure
- line type
- type temperature
- control valve
- independent line
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Abstract
The utility model discloses a pressure independent linear temperature regulating valve, which comprises a regulating valve, a straight-travel mechanical drive device connected with and driving the regulating valve and a straight-travel electric actuator arranged in and controlled by the straight-travel mechanical drive device, and which is characterized by further comprising a differential pressure detection part for detecting the differential pressure of fluids flowing into the regulating valve, the straight-travel electric actuator is further provided with a pressure independent linear temperature control drive device which is connected with the differential pressure detection part to receive a differential pressure signal and is connected with the straight-travel mechanical drive device for driving. The utility model solves the problem in the prior art that pressure independent linear temperature control can not be realized. The pressure independent linear temperature regulating valve has the function of pressure independent linear temperature control with high accuracy, can ensure that flow quantity of the valve is free from the disturbance resulted from pressure fluctuation of system and achieves linear accurate control for the temperature.
Description
Technical field
The utility model relates to the temperature control valve (TCV) that uses in the HVAC water system, in particular to pressure independent line type temperature control valve.
Background technology
In the HVAC water system, usually need to use control valve that the fluid flow in the system etc. is controlled, thereby the building of this system or the temperature of other facilities are installed in control.
In the prior art, usually directly control corresponding valve by common straight stroke electric actuator and Direct Travel mechanical actuation device, thereby reach the fluid flow that passes through is controlled, to realize that common this control all is non-linearity to temperature controlling.
And, such control often with the pressure correlation of fluid, can not realize the line type temperature control of pressure independent.Therefore exist in the prior art the control valve in the HVAC water system is carried out improved needs, so that high-precision pressure independent line type temperature control valve to be provided.
The utility model content
The utility model is with solving the above-mentioned of prior art and other possibility problems, particularly realizing by following aspect.
The utility model provides a kind of pressure independent line type temperature control valve, comprise control valve, be connected with control valve and drive the Direct Travel mechanical actuation device of control valve and the straight stroke electric actuator that the Direct Travel mechanical actuation device was arranged on wherein and accepted its control, it is characterized in that, described pressure independent line type temperature control valve also comprises the pressure differential detection part that detects the fluid pressure difference that flows into control valve, described straight stroke electric actuator also is provided with pressure independent line type temperature accessory drive, described pressure independent line type temperature accessory drive partly is connected with the reception pressure difference signal with pressure differential detection, and is connected to drive with the Direct Travel mechanical actuation device.
According to an aspect of the present utility model, described pressure independent line type temperature accessory drive comprises interconnective pressure independent line type temperature control device and pressure independent line type temperature drive circuit.
According to an aspect of the present utility model, described pressure independent line type temperature control device partly is connected to receive the signal of expression pressure reduction with pressure differential detection.
According to an aspect of the present utility model, described pressure independent line type temperature drive circuit is connected to drive with the Direct Travel mechanical actuation device.
According to an aspect of the present utility model, described pressure differential detection partly comprises the throttling pressure plate that is installed in the control valve inlet, the pressure difference sensing assembly that is connected with described pressure independent line type temperature control device is with pressure straight tube that is connected throttling pressure plate and pressure difference sensing assembly and pressure flexible pipe.
According to an aspect of the present utility model, be provided with special-purpose air bleeding valve in the described pressure straight tube.
Pressure independent line type temperature control valve of the present utility model is the pressure independent type control valve that is used for terminal air-conditioning equipment in the HVAC water system, has high-precision line type temperature control function.On the one hand, it can realize the line style high accuracy control to temperature according to the characteristic of institute's accent end-equipment; On the other hand, this control is again the pressure independent type, and promptly the changes in flow rate of control valve only is subjected to the air conditioning area influence of temperature variation, and is not subjected to the influence of air-conditioner water system pressure oscillation.Pressure independent line type temperature control valve therefore of the present utility model dynamically Horizon balance system pressure changes, thereby the flow output that guarantees valve is interference-free, realizes simultaneously the line style of temperature is accurately controlled.
Description of drawings
Fig. 1 is the schematic longitudinal sectional view according to pressure independent line type temperature control valve of the present utility model.
Fig. 2 is the schematically horizontal partial sectional view according to pressure independent line type temperature control valve of the present utility model.
The specific embodiment
The high-precision temperature that can not only be applied to the heating ventilation air-conditioning system end-equipment according to pressure independent line type temperature control valve of the present utility model is controlled, and also can be applicable to other the workplace that same or similar functional requirement is arranged.Below describing in detail only is for illustrative purposes, and unrestricted the utility model.
According to pressure independent line type temperature control valve of the present utility model is two logical type fine adjustment valve products of a kind of pressure independent, the control of high accuracy line type temperature, and the specification scope is DN～DN.This pressure independent line type temperature control valve mainly is made of control valve, pressure independent line style temperature-control electric actuator, throttling pressure plate and pressure straight tube, air bleeding valve, flexible pipe etc.Describe structure of the present utility model and operation principle in detail below with reference to accompanying drawing.
As shown in Figure 1, mainly comprise pressure differential detection part, pressure independent line type temperature control drive part and control valve according to pressure independent line type temperature control valve of the present utility model.
Particularly, thereby control valve is communicated with the reception fluid at upstream extremity by pipeline with heating ventilation air-conditioning system, and links to each other with the fluid discharge pipe road in downstream.
The pressure differential detection part mainly comprises: be installed in the throttling pressure plate 1 of control valve inlet, flow into the pressure reduction of the fluid of control valve with sensing by throttling pressure plate 1; Pressure difference sensing assembly 2, the pressure difference signal that is used to receive from throttling pressure plate 1 also converts this signal to the signal of telecommunication to be sent to pressure independent line type temperature control drive part; Pressure straight tube 10 and pressure flexible pipe 8 are used to connect throttling pressure plate 1 and pressure difference sensing assembly 2, thereby the pressure difference signal that throttling pressure plate 1 place is sensed passes to pressure difference sensing assembly 2.Special-purpose air bleeding valve 9 can also be set, so that pressure straight tube 10 and pressure flexible pipe 8 are regulated in pressure straight tube 10.
In the embodiment shown, throttling pressure plate 1 is arranged on the tight upstream end of control valve intake section, but also can be arranged in the intake section, perhaps other appropriate locations.It is adjacent with pressure independent line type temperature control drive part that pressure difference sensing assembly 2 is set to, but also can be arranged on other positions and coupled.The layout of illustrated embodiment makes the structure relative compact of this control valve.
Pressure independent line type temperature control drive part mainly comprises straight stroke electric actuator 6, is provided with pressure independent line type temperature accessory drive 4 and Direct Travel mechanical actuation device 7 in the straight stroke electric actuator 6.Pressure independent line type temperature accessory drive 4 comprises pressure independent line type temperature control device 3 and pressure independent line type temperature drive circuit 5.
Be provided with end-equipment thermal output property database and pressure independent property data base in the pressure independent line type temperature control device 3.Therefore, pressure independent line type temperature control device 3 receives from the standard control signal of building control system or field controller and from the measurement signal of telecommunication of pressure difference sensing assembly 2, and change according to selected end-equipment thermal output characteristic and pressure independent characteristic, and then, output a control signal to pressure independent line type temperature drive circuit 5 by pid control algorithm.Pressure independent line type temperature drive circuit 5 drives Direct Travel mechanical actuation device 7 according to the control signal that receives, to change the aperture of control valve 11.Thereby realize the irrelevant line type temperature adjusting of high-precision pressure to the control area temperature of end-equipment.
Operation principle of the present utility model is as follows.When the ducted fluid of heating ventilation air-conditioning system flows into control valve 11 via throttling pressure plate 1, throttling pressure plate 1 sensing pressure difference signal, pressure difference signal enters pressure difference sensing assembly 2 through pressure straight tube 10, special-purpose air bleeding valve 9 and pressure flexible pipe 8, becomes the signal of telecommunication and is transported in the straight stroke electric actuator 6.The measurement signal of telecommunication of pressure independent line type temperature control device 3 acceptance criteria control signals and pressure difference sensing assembly 2, arrive pressure independent line type temperature drive circuit 5 according to previously selected output signal, change the aperture of control valve 11 by Direct Travel mechanical actuation device 7, thereby realize the irrelevant line style of the high-precision pressure of end-equipment control area temperature is regulated.
Characteristics of the present utility model are: the control of line concentration type temperature, pressure independent control and motorized adjustment function are in one; To the high-precision line type temperature control of end-equipment; The temperature flow control of pressure independent type; All control, adjusting work are all finished automatically, need not artificially interfere; Control accuracy height, antijamming capability are strong; Permission system pressure-difference fluctuation scope is wide; Can preset maximum stream flow easily as required; The amount of calculation of pipe-line system during simplified design; Installment work is convenient and swift; Field adjustable is very convenient.
More than explanation only is exemplary, under the situation that does not break away from the claims scope, it may occur to persons skilled in the art that to modification of the present utility model and improve all in scope of the present utility model.
Claims (6)
1. pressure independent line type temperature control valve, comprise control valve, be connected with control valve and drive the Direct Travel mechanical actuation device of control valve and the straight stroke electric actuator that the Direct Travel mechanical actuation device was arranged on wherein and accepted its control, it is characterized in that, described pressure independent line type temperature control valve also comprises the pressure differential detection part that detects the fluid pressure difference that flows into control valve, described straight stroke electric actuator also is provided with pressure independent line type temperature accessory drive, described pressure independent line type temperature accessory drive partly is connected with the reception pressure difference signal with pressure differential detection, and is connected to drive with the Direct Travel mechanical actuation device.
2. pressure independent line type temperature control valve according to claim 1 is characterized in that, described pressure independent line type temperature accessory drive comprises interconnective pressure independent line type temperature control device and pressure independent line type temperature drive circuit.
3. pressure independent line type temperature control valve according to claim 2 is characterized in that, described pressure independent line type temperature control device partly is connected to receive the signal of expression pressure reduction with pressure differential detection.
4. pressure independent line type temperature control valve according to claim 2 is characterized in that, described pressure independent line type temperature drive circuit is connected to drive with the Direct Travel mechanical actuation device.
5. pressure independent line type temperature control valve according to claim 1, it is characterized in that, described pressure differential detection partly comprises the throttling pressure plate that is installed in the control valve inlet, the pressure difference sensing assembly that is connected with described pressure independent line type temperature control device is with pressure straight tube that is connected throttling pressure plate and pressure difference sensing assembly and pressure flexible pipe.
6. pressure independent line type temperature control valve according to claim 1 is characterized in that, is provided with special-purpose air bleeding valve in the described pressure straight tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920005851U CN201382514Y (en) | 2009-02-13 | 2009-02-13 | Pressure independent linear temperature regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920005851U CN201382514Y (en) | 2009-02-13 | 2009-02-13 | Pressure independent linear temperature regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201382514Y true CN201382514Y (en) | 2010-01-13 |
Family
ID=41525987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920005851U Expired - Lifetime CN201382514Y (en) | 2009-02-13 | 2009-02-13 | Pressure independent linear temperature regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201382514Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701692A (en) * | 2019-10-23 | 2020-01-17 | 同济大学 | Air conditioning unit for large-bay operating room and control method thereof |
-
2009
- 2009-02-13 CN CN200920005851U patent/CN201382514Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701692A (en) * | 2019-10-23 | 2020-01-17 | 同济大学 | Air conditioning unit for large-bay operating room and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HONEYWELL ENVIRONMENT AUTOMATIC CONTROL PRODUCT (TIANJIN) CO., LTD. Assignor: Honeywell (China) Co.,Ltd. Contract record no.: 2010120000177 Denomination of utility model: Pressure independent linear temperature regulating valve Granted publication date: 20100113 License type: Exclusive License Record date: 20101209 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100113 |